INNOVATION is REVOLUTIONARY

Transcription

1 INNOVATION is REVOLUTIONARY PRT Ring Slides and Track System DTS Driven Track System

2 HepcoMotion PRT Ring Slides and Track System Bishop-Wisecarver Corporation has been solving customers circular motion problems for years, accumulating indispensable knowledge of applications and clever technical solutions. This knowledge coupled with many years of research and development has resulted in the introduction of a comprehensive range of ring slides and track systems to suit virtually every need. The ring slide and track system products complement our extensive range of linear motion products enabling customers to choose BWC for all their motion guidance requirements. Common Low friction motion Fully adjustable Tolerant of debris Simple and effective means of lubrication Works in any plane Tolerant of misalignment Easy to install Ring Slides and Segments Circular motion control at the periphery where it is needed Large hollow center to accommodate other components Will track the curvature of cylindrical shapes Easy means of driving available Track Systems Limitless variety of circuits available Precision positioning possible High stability assured Simple alignment facility provided

3 Motion Without Limits About Bishop-Wisecarver Corporation Bishop-Wisecarver Corporation is a family owned manufacturing company specializing in guide wheels and motion control technologies. DualVee was designed as a problem solver for automotive, machine tool, paper processing, textile, and general industrial automation applications where traditional guidance technologies proved ineffective. DualVee Motion Technology (DMT) has continued to evolve into an ideal technology for today s cutting edge industries such as laboratory equipment, bio-medical, semiconductor, and electronics assembly. BWC invented the DualVee guide wheel and has been a world leader in guide wheel technology since DMT integrates three main components, the DualVee guide wheel, its mating DualVee track with patented mounting shoulder, and the DualVee support bushing. Our product line includes components, linear guides, linear systems, rotary guides and systems, and aluminum machine framing. Actuated Linear Motion Systems Since its introduction into the industrial equipment marketplace over thirty years ago, DualVee Motion Technology has become an industry standard linear guidance solution. The LoPro linear motion system is a modular, actuated system design, available in screw, belt, and chain driven configurations. Its low cost, ease of installation, and unique design characteristics make it the system of choice for many linear bearing applications. Developed over 8 years ago, LoPro belt, chain, and screw drive systems have been implemented in virtually every industry covering a wide range of applications. From factory automation projects to OEM equipment designs, LoPro linear systems offer a level of reliability unmatched in the industry. This is particularly true considering the wide range of environments in which it can be employed. Known primarily for it s ability to operate in harsh, contaminated environments, LoPro linear systems are just as often employed in laboratory and clean room-grade equipment designs. When reliable, smooth, low friction guidance is mandatory, LoPro linear systems perform well, even in the most challenging conditions. Ring and Track System - Introduction PRT IFC System Composition Application Examples Data & Dimensions Assembled Ring System Slide Rings and Segments Bearing Assemblies Lubricator Fixed Center Carriage Track Systems Track System Straight Slides Track System Curved Segments Bogie Carriage Load / LIfe Calculations Track System Data/ System Adjustment Driven Track System - DTS Introduction / System Composition Application Examples Data & Dimensions Selection & Specification Optional Equipment Application and Design Assistance D Modeling and CAD Drawings 1

4 System Composition Ring Systems A useful range of nine different ring diameters comprising four different sections is available together with corresponding bearing assemblies. 90 and 180 stock segments are available in each ring size. Rings Precision ground all over for optimum accuracy and concentricity Hardened V faces for maximum wear resistance Soft center section allows customizing Datum location faces provided both internally and externally Gearcut option for ease of driving Through hole or tapped hole mounting Blind Hole Bearing Assembly (Eccentric) Two screws fixing directly onto mounting surface where access to opposite side is restricted Bearing Assembly (Eccentric) Provides simple means of adjustment via center hexagon socket on each end Eccentric throw is sufficient to enable removal of ring without disassembly Bearing Assembly (Concentric) Two piece ground bearing with precision clearance Zero play when system adjusted High rigidity Two stud lengths available in each size Provides datum reference for the system Fixed Center Carriage Low cost mounting platform for your components May be used with ring, segment, or unidirectional track system of common bend radius Incorporates lubricators for increased load/life Accurate overall height Keyway location facility Useful fixing holes provided Adjustment Key and Jacking Facility (For use with track system curved segments only) Easy alignment to adjacent straight slide Allows for fine tuning of positioning 2

5 Motion Without Limits Track Systems Ring segments combine with straight slides to build into an almost limitless variation of either open or closed circuits. Unidirectional or bidirectional bends can be negotiated depending upon the carriage used. Segments in all standard ring sizes are available in addition to straight slides up to 4 meters in length. Lubricator Provides lubrication to the contact surfaces, thereby increasing the load capacity and life Alternative screw fixing options Flanged and compact versions available Bogie Carriage Negotiates S bends and differing bend radii Large platform for mounting purposes Adjustable axial/radial swivel bearings lubricated for life Accurate overall height Useful mounting holes provided Factory adjusted to suit track system Blind Hole Bearing Assembly (Concentric) Screws directly into mounting surface where access to opposite side is restricted Straight Slides Precision ground on all pertinent surfaces Hardened V faces for maximum wear resistance Soft center section allows customizing / ease of machinability Central keyway provided for ease of location and alignment Ground datum faces are provided on both sides as alternative means of location and alignment Available up to 4 meters long in most sizes Unlimited lengths can be achieved by butting Dowel Pins Locates in central keyway of straight slide providing easy method of location and alignment Segments 90 and 180 segments available from stock Any length segment easily cut from standard size rings May be used independently or as part of a track system 3

6 Application Examples Spray System Spray head mounted on PRT ring segment, tracks curvature of product. Mobile Saw for Long Tubes Motor and saw assembly mounted on carriage, is hand operated around 360 PRT ring slide to cut tube. Simple Pick and Place Unit PRT ring slide allows 360 rotation and support as near to the load as possible. The hollow center is used for routing the services. 4

7 Motion Without Limits Laser Engraver for Rotary Print Screens Special PRT ring slide slips over screen tube ensuring integrity of shape. Hinged bearing assembly bracket enables fast load and unload. Three Axis Assembly Robot Excellent stability and low friction rotation provided by PRT ring slide ensures smooth yet rigid movement. Rotary Assembly Fixture PRT ring slide allows low friction manual rotation and provides control and support adjacent to where the load is being applied. 5

8 Application Examples Body Scanner Imaging head mounted on PRT ring slides rotates around the patient. Smooth, silent operation and zero play ensures high quality scans. Laminating Machine Carriages on upper track cooperate with carriages on the lower track to pressure laminate chemical sensitive paper. PRT track systems permit continuous motion, high speed operation, and ensure precise alignment. 6

9 Motion Without Limits Removing Flash from Molding Carriage on track system accurately follows the profile of the product. Rigidity of the carriage assembly ensures good quality finish of the trimmed edge. Multi-Station Assembly Machine Carriages linked by connecting rods are indexed around rectangular path circuit. Zero play and precise positioning enables highly accurate work to take place at each station. 7

10 Application Examples Carton Forming & Filling Line Track system provides a simple means of transportation from station to station. Alternate carriages are independently driven enabling quick changeover to different sizes by advancing one chain wheel in relation to the other. The zero play feature of the system ensures that the cartons are rigidly supported during the erecting, filling and closing operations. 8

11 Motion Without Limits Driving Mechanisms for Track Systems (Please refer also to other application examples) Timing belt with pins through molded lugs (as shown) or chain with extended pins and rollers (see other application examples). Important: Distance from belt or chain to carriage connection point varies from curve to straight section. A slot must be provided to allow for this variation, plus variation due to drive tension adjustment. Simple link from extended chain pin to carriage provides for one way drive only. It is recommended that chain support rails be fitted to overcome offset load. Carriages linked by adjustable length connecting rods. Pneumatic index drive by means of Powerslide and latch mechanism. It is recommended that carriages be locked in position during the stationary cycle. Carriages linked by adjustable length connecting rods. Rollers on carriages engage with nylon screw to provide drive. 9

12 Data and Dimensions Assembled Ring System The PRT Ring System may be used in either complete ring form or as segments. The carriage may be used to run on the ring track (see below) or constructed in order to embrace the complete ring (see page 11) where the bearing assemblies may be placed internally and/or externally. In all cases either the ring or the carriage may be the moving component. The specially developed R series bearing assemblies have sufficient adjustment to enable complete removal of the ring slide from the carriage Slide Ring K ~ ± Ref. No. A B C D E F G H I J Max Min R R R R R R R R R Notes 1. Two lengths of stud are available for each size bearing assembly (see page 14). Choose according to your required carriage thickness. 2. Offset holes in carriage for eccentric bearing assemblies necessitate adjustment rotation in direction shown. 3. Standard pinions are available from most manufacturers to suit gear drive option slide rings (see page 12). 4. Exact theoretical values have been given for Q, R and S. Positional accuracy of dimension S will determine the axis of the ring. Positional accuracy for dimensions Q and R are not normally critical. Holes for bearing assemblies should be reamed to tolerance as per dimension R on page All dimensions in millimeters. 10

13 Motion Without Limits When using rings as shown below it is recommended that two concentric bearing assemblies should be placed 120 apart in order to provide a datum reference. The other bearing assemblies used should be the eccentric type. All eccentrics may be used where positional adjustment of the ring is required. One or more lubricators may be fitted at convenient positions to take advantage of the increased load/life afforded by lubrication (see technical section pages 24-27). (see page 14) (see page 15) (see page 16) (see page 14) (see page 14) Drilling Positions (See Note 4) ±0.025 ±0.2 ±0.2 ±0.2 ±0.2 Slide Ring L M N O P Q R S T U V W X Ref. No R R R R R R R R R Ordering Details Simply list the components required and if relevant, bracket those you wish to be factory assembled. Example: ASSEMBLED { 1 x R R ring Segment (see pages 12 & 13) 1 x FCP Fixed Center Carriage (see page 17) 11

14 Data and Dimensions Slide Rings & Segments R series slide rings are manufactured from high quality steel, zone hardened on the V edges and precision ground all over with datum register faces, provided both internally and externally, for ease of location. Gear drive options are available with teeth machined into either the internal or external register face. The number of teeth on the standard external option is divisible by 12 in order to provide maximum choice of pinion size for exact ratio requirements. Customers may also choose the tapped hole option N which enables the slide ring to be bolted from below. 12

15 Motion Without Limits R series ring segments are cut from complete 360 slide rings and held in stock in nominal 90 and 180 sections. Any length segment can be cut to meet the customer s special order and additional holes can be drilled as required. Although suitable for most applications, slight out of roundness and flatness may be experienced with slide rings and segments in their free unmounted condition. This may be overcome by installing against a register and bolting to a flat surface. Socket Cap Part Head Screw ± 0.2 JS6 ~ ±0.025 Number ISO 4762 A B C D D 1 E F G H I J K L M See Note 2 N ±0.037 R ± REF x3 3.7 M3* M4x0.7 ±0.037 R ± REF x3 3.7 M3* M4x0.7 ±0.039 R ± REF x6 5.5 M5 M8x1.25 ±0.041 R ± REF x6 5.5 M5 M8x1.25 ±0.044 R ± REF x6 5.5 M5 M8x1.25 ±0.046 R ± REF x7 6.8 M6 M8x1.25 ±0.048 R ± REF x7 6.8 M6 M8x1.25 ±0.051 R ± REF x13 14 M12 M16x2 R ± ±0.054 REF x13 14 M12 M16x2 External Gear Internal Gear Stock Segments Holes Within ±0.2 Number Of True Position Mass~ (See Note 1) Part No. of Teeth No. of Teeth Of Holes Kg O P MOD (R=360 ) Q MOD (R=360 ) R (R=360 ) S T U V (R=360 ) Number R R R R R R R R R Notes 1. Standard ring segments will be slightly less than 90 and 180 because of the cutting allowance. Full 90 and 180 segments can be supplied to customer s special order. 2. Socket head cap screws ISO 4762 will protrude 1mm above the surface of the R12 section slide rings. Customers requiring screws to be flush should use low head type DIN 7984, available from BWC upon request. 3. All dimensions in millimeters. Example: Tapped hole option N Internal gear drive option Q External gear drive option P 90 segment 180 segment Full 360 ring slide Part number 13

16 Data and Dimensions Bearing Assemblies - Through Fixing Type (RSJ/RLJ) Two basic bearing assembly options are available, the standard economy through fixing type which requires access to the retaining nut on the opposite side of the mounting plate, and the blind hole fixing type for use where access to the opposite side is denied. The through fixing type is available in two stud lengths to cater for most applications, the short stud version being compatible with the carriage plates. All bearing assemblies incorporate high precision ball races for durability, rigidity and friction-free running. The bearings are greased for life and are supplied dust shielded as standard or neoprene sealed upon request. Bearing assemblies are available in concentric form to provide a datum reference and in eccentric form for ease of system adjustment. Part Number For Use With Ring/Slide Section ±0.025 RSJ RLJ RSJ RLJ (See Note 6) A B B 1 C C C 1 C 1 RSJ/RLJ-13-C/E / BHJ-13-C/E R-12/TNMS RSJ/RLJ-25-C/E / BHJ-25-C/E R-25/TNS RSJ/RLJ-34-C/E / BHJ-34-C/E R-44/TNM RSJ/RLJ-54-C/E / BHJ-54-C/E R-76/TNL ±0.2 Q R S S 1 T T 1 T 2 U U 1 V W X Y M3x M5x M6x M8x Notes 1. It is recommended that holes to suit bearing assembly mounting studs should be reamed to tolerance as per dimension R on page Thread form is metric fine. See F dimension in table above. 3. All RSJ/RLJ type eccentric bearing assembly fixing studs are supplied with sockets for adjustment as shown with the exception of the RSJ/RLJ-13-E. 4. Nuts and washers are supplied with both concentric and eccentric RSJ/RLJ type bearing assemblies. 5. R Dimension is both the eccentric offset of the adjusting nut and the total adjustment available at the bearing center line for 360 rotation of the adjusting nut. 6. Each size of bearing assembly has been designed for use with a specific size of ring/slide section (see table above). However, any bearing assembly may be used in conjunction with any ring/slide section larger than that for which it was designed if required by the application. Additionally, size 34 bearing assemblies may be used with size 25 ring/slide section and size 54 bearing assemblies may be used with size 44 ring/slide section. 14

17 Motion Without Limits Bearing Assemblies - Blind Hole Fixing Type (BHJ) Studs and fixing nuts are manufactured in 700MPa (45 ton) condition high tensile steel and are supplied chemically blackened. Fasteners used on the eccentric version are bright zinc plated for ease of identification. The eccentric blind hole fixing base/bearing support is manufactured from high grade cast steel which together with the steel adjuster nut is supplied chemically blackened. Installation and adjustment of relevant bearing assemblies may be carried out using the adjusting wrench, alternatively, the socket tool with standard allen key may be used (see table below for details). ± C 2 D E F G H I J K L M M 1 N O P M4x M8x M10x M14x Mass ~g Adjusting Socket Z Wrench Tool RSJ-C/E RLJ-C/E BHJ-C BHJ-E 8 AT AT25 RT AT34 RT AT54 RT Part Number RSJ/RLJ-13-C/E / BHJ-13-C/E RSJ/RLJ-25-C/E / BHJ-25-C/E RSJ/RLJ-34-C/E / BHJ-34-C/E RSJ/RLJ-54-C/E / BHJ-54-C/E Ordering Details Example: Quantity Through fixing type with short stud Through fixing type with long stud Blind hole fixing type 2 x (RSJ) - (RLJ) - (BHJ) (C) - (E) - (NS) Neoprene sealed bearings required Adjustable (eccentric) type Concentric type Size reference (~ A dimension) 15

18 Data and Dimensions Lubricator The lubricator consists of an impact resistant polyacetal plastic molding, housing a spring loaded oil impregnated felt wiper. It is designed to apply a constant film of oil to the working surfaces of the slide without imposing undue friction. The application of oil significantly increases the load/life of the system. Part Use With Ring/ Type F Type C Number Segment Type A A 1 B C D E LB-12 R/TR LB-25 R/TR LB-44 R/TR LB-76 R/TR J J 1 Part F G G 1 H I ØxLength Screw Hole Ø K L M N O Number x5 M2.5x0.45x LB x10 M3x0.5x LB x16 M4x0.7x LB x22 M5x0.8x LB-76 Notes 1. 2 x Plastite 45 self-tapping cross recessed pan head screws conforming generally to ISO 7049 are supplied with each lubricator for fixing via holes J. Additionally, 2 x cross recessed cheese head screws ~DIN 84A are supplied with flanged type lubricator for fixing via holes J Replenishment of oil should be carried out via the lubrication point provided using BP Energol GHL 68 or similar 68 viscosity EP mineral oil. Ordering Details Example: Compact Type C Flanged Type F Part Number Quantity 16

19 Motion Without Limits Fixed Center Carriage The fixed center carriage is designed for use with track systems of common bend radii without S bends and also for ring slide tracks and segment tracks (see note 1). The geometry has been cleverly devised to enable the carriage to traverse from straight to curve track section without the necessity for each pair of bearings to independently follow the slide, thus enabling a low cost carriage to be produced. A small amount of play is experienced while the bearing assemblies traverse the joint between the straight and curve (see table on page 28) but this is not detrimental in most applications. The anodized aluminum alloy carriage plate can be manufactured to customer s special length requirements but the bearing assembly mounting hole centers must remain as specified. Each carriage is supplied fully assembled and adjusted to suit the accompanying slide, if required. Use With Part Rings/Segment ±0.1 ±0.1 ± ±0.1 ±0.1 Number Type A B B 1 C C 1 D E F G H I J FCP R / TR FCP R / TR FCP R FCP R / TR FCP R / TR FCP R / TR FCP R / TR FCP R / TR FCP R / TR ±0.1 ± Mass Part K L M N Ø O P Q R Ø S T U V W ~g Number x x M4x FCP x x M4x FCP x x M6x FCP x x M6x FCP x x M6x FCP x x M8x FCP x x M8x FCP x x M10x FCP x x M10x FCP Notes 1. Fixed center carriage FCP cannot be used with a track system. 2. Offset holes in carriage for eccentric bearing assemblies necessitate adjustment rotation in the direction shown. Ordering Details Example: Simply specify the quantity and part number required. 6 x FCP

20 Data and Dimensions Track Systems PRT track systems provide a unique method of achieving an almost limitless variation of controlled routing. Any number of carriages can be accommodated, either the fixed center economy type which is suitable for unidirectional bends of the same radius or the bogie type which enables S bends of varying radii to be negotiated and provides a large platform for mounting purposes. Various drive possibilities exist, some of which are illustrated in the applications section on pages 6-9. The relevant dimensions of individual track system slides are held on record to enable spares and replacements to be supplied. (see page 17) (see page 21) (see page 22) Installation Procedure PRT track systems are supplied in separate sections, ready for installation marked with a system reference number and individual sequence number (see ordering details page 19). It is recommended that track system slides should be assembled and clamped in position as a complete circuit prior to drilling through all holes and bolting down the straight slides. Final adjustment of the joints should be carried out using the keyway alignment facility provided, ensuring that both jacking screws are subsequently locked and all curved segment fixing screws are tightened. A final stoning of the V faces is necessary to ensure smooth travel across the joints. 18

21 Motion Without Limits (see page 23) (see page 22) (see page 20-21) Notes 1. With the fixed center carriage a small amount of play is experienced as each pair of opposing bearing assemblies traverses the join between straight and curve. This is not normally detrimental in most applications. The maximum play acting in the direction of the arrows is given in the table on page Due to the cutting procedure, 90 and 180 curved segments are supplied slightly shorter than their theoretical length (see page 22). This is not detrimental to the smoothness of travel across the joint, provided installation has been carried out according to procedure (see page 18). Ordering Details Simply list the curved segment and straight slide part numbers in sequential order in a clockwise direction (see arrows in illustrations), starting at any point according to preference. Viewing plan elevation as per illustrations and travelling clockwise around the circuit, curved segments should be designated suffix C for clockwise bend and suffix A for counterclockwise bend. The final item should indicate the quantity and part number of the carriages required. Example: 1 x: (1) TNM-44-B x AK (2) TR R180/C (3) TNM-44-B x AK (4) TR R180/C 6 x FCP-44 Track system straight slide (pages 20-21) Clockwise curved segment (page 22) Track system straight slide (pages 20-21) Clockwise curved segment (page 22) Fixed center carriage (page 17) 19

22 Data and Dimensions Track System Straight Slides PRT track system straight slides are modified straight slides from HepcoMotion s highly acclaimed Generation II slide system, available from Bishop-Wisecarver, for which there is a separate catalog. The slides are manufactured from quality high carbon steel, zone hardened on the V edges, then precision ground on the critical V faces, register width and mounting face. Additional holes or machining may be implemented in the soft center portion of the slide if required. Standard lengths are available up to 4020mm (1020mm in the TNMS-12 section) and unlimited lengths can be achieved by butting matched slides together. +0 Socket Head Part ~ 0.2 Cap Screw 0.00 ±0.025 Number A A 1 * B MAX C D E F ISO 4762 G H H 1 I J TNMS x3 3.5 M TNS x5 5.5 M TNM x6 7 M TNL x12 14 M *See Note 5 Notes 1. Standard slide lengths are available in multiples of hole pitch D + (2 x C ) up to a maximum length per B dimension in the table above. Special length slides can be cut to order. 2. Adjustment keys are required at every join between straight slide and curved slide. Please order accordingly (see ordering details). Please note that Q dimension for the TNMS-12 slide is stepped one end to fit keyway H. 3. Please note that dowel pins for the TNMS-12 slide are not stepped. 4. Slides in their free unmounted state are not necessarily straight. They should be set to the required straightness when bolting down to the mounting surface at assembly. 5. Dimensions A 1 and K will be matched with corresponding dimensions F and I page 12, for track system requirements. 20

23 Motion Without Limits All track system straight slides are ground square on the ends and marked with a reference number and sequence number for installation and replacement purposes (see pages 18 & 19). Opposing slides within a track system are ground to identical lengths. Adjustment keys are available to facilitate alignment with adjacent curved segments (see page 22). Dowel pins positioned at regular intervals along the slide keyway provide a convenient means of location and alignment. Alternatively, the ground datum faces of the slide may be set against a machined register in the mounting surface (see note 4). See +0.0 Note 5 m6 0.3 K6 Mass Part K L M Ø N O Ø P Q R S T U ~g/100mm Number TNMS TNS TNM TNL-76 Ordering Details Example: 16 x Dowel pins required 1 x adjustment key required 2 x adjustment keys required Length of slide B = 1500mm Part number 21

24 Data and Dimensions Track System Curved Segments PRT track system curved segments are modified from stock 90 and 180 slide ring segments (see pages 12 and 13 for dimensions and details). The segment ends are ground square to a specified dimension relative to the true shape of the segment and a clearance keyway and tapped hole facility are incorporated onto each end to provide a method of alignment when assembled together with the mating key of the track system straight slide (see page 21). An additional fixing hole is provided adjacent to the keyway at each end to give extra support at the joint position for all segments except TR12-93 and TR All track system curved segments are marked with a reference number and sequence number (see pages 18 & 19). FOR ALL OTHER DETAILS & DIMENSIONS SEE PAGES 12 & 13 Part ~ ±0.2 Number A B C D E F G H I J R TR M2.5x TR M2.5x TR M4x TR M4x TR M4x TR M5x TR M5x TR M8x TR M8x Ordering Details Example: Tapped hole option N (see page 12) 180 segment 90 segment Part number 22

25 Motion Without Limits Bogie Carriage The bogie carriage is designed for use with track systems where S bends or bends of varying radii are to be negotiated, or where increased stability due to wide spacing of the bearing assemblies is required. Each bogie swivels on a unique self-lubricating axial/radial bearing with adjustable preload facility, enabling it to follow exactly the path of the slideway at all times. The bogie and carriage plate are manufactured in anodized aluminum alloy and the complete carriage is supplied fully assembled and adjusted to suit the accompanying slide. Special size carriages are available upon request. (see page 14) (see page 14) Use With Part Track System ±0.1 ±0.1 ±0.1 Adjustment Mass Number (Segment Type) A B C D E F G H I J K L M N O P Brace ~kg BCP-12 TR M4x AB BCP-25 TR M6x AB BCP-44 TR M8x AB BCP-76 TR M10x AB Adjustment Procedure a) The preload of the bogie swivel bearings is factory adjusted. However, should it become necessary to readjust, tighten the preload adjusting screws evenly until all play is removed while still allowing freedom of rotation of the bogie. A suitable thread locking compound (Loctite 242 or equivalent) must be used when resetting the preload adjusting screws. b) The bearing assemblies are factory adjusted to suit the accompanying slide system. However, should it become necessary to readjust, the carriage must first be removed from the bogies by undoing the fixing screws, then the bogies connected together using the adjustment brace (see table above). The exposed bearing assembly fixing nuts may then be slackened and adjustment effected by rotating the eccentric in direction of arrow shown in accordance with the system adjustment procedure (see page 28). Bearing assembly adjusting tools are available and are illustrated on page 14. Ordering Details Example: Simply specify the quantity and part numbers required. 8 x BCP-76 1 x AB-76 Bogie carriage Adjustment brace 23

26 Load/Life Calculations Load Capacity and Life Expectancy The load capacity and life expectancy of PRT ring, segment, and track systems will be determined by several factors. These are the size of the ring and the size and number of bearing assemblies used, the presence of lubrication, the magnitude and direction of loads, the speed of operation (see note 2, page 25), and the length of the path traversed (see note 3, page 25). It is usual to run systems with less than the maximum load to prolong the life, which can be calculated using the data and formulae in this section. For calculation purposes, ring slide and track systems fall into two categories, those in which a carriage runs on a ring segment or track, and those in which a ring rotates, captivated by a number of bearing assemblies (or a similar arrangement where the ring is stationary and the bearing assemblies and load rotate). Wherever possible, PRT ring and track systems should be lubricated using lubricators (see page 16). Such lubrication will greatly increase the load capacity and extend the life of the system (see tables on pages 24 & 25 and nomograms on pages 25 & 26). Systems with Carriages on Rings, Segments and Tracks When calculating the life, the loading on the system should be resolved into the direct load components L 1 and L 2 and the moment load components M, M V and M S (see adjacent diagram and refer also to note 2). Maximum Lubricated Load Capacity Maximum Unlubricated Load Capacity Carriage Direct Loads (N) Moment Loads (Nm) Direct Loads (N) Moment Loads (Nm) L 1 L 2 M M V M S L 1 L 2 M M V M S FCP FCP BCP * 1.7* * 1.2* 0.4 FCP FCP FCP BCP * 27* * 10* 3.5 FCP FCP BCP * 75* * 28* 14 FCP FCP BCP * 220* * 86* 55 To calculate the life of a system using a standard carriage, first obtain the load factor L F by entering the values for L 1, L 2, M, M V and M S in respect of the proposed duty into equation [1] below, together with the maximum load capacities from the table above. M M [1] L F = + V M + S L + 1 L + 2 M (max) MV(max) MS(max) L1(max) L2(max) The life for the system can be read from the nomogram on page 25 (for lubricated systems) or on page 26 (for systems running dry) by taking the life figure on the lower scale opposite the calculated value for L F on the upper scale (see examples, pages 26 & 27). Notes 1. If using a bogie type carriage which differs from the standard length, then M and M V moment load capacities will increase pro rata with the increase in the distance between the bogie swivel centers (see dimension F on page 23). 2. When calculating L 2 and M S, the centrifugal force must be included, which acts radially outwards from the center of mass (COM) of the moving object. Its magnitude is F=DV 2 /R where V is the velocity of the COM in m/s, R is the distance of the COM from the ring axis in m and D is the mass in kg. F is in N (newtons). 24

27 Motion Without Limits Systems with Rings Rotating Within Enclosing Bearing Assemblies In those duties having a complete ring which rotates in a number of encircling bearing assemblies, it is usual to equally space the bearing assemblies around the ring (see note 1). When calculating the life, the loading on the system should be resolved into the direct load components L A and L R and the moment load component M (see adjacent diagram and refer also to note 2 on page 24). Bearing Assembly Size RSJ/BHJ-13 RSJ/BHJ-25 RSJ/BHJ-34 RSJ/BHJ-54 Used With Number of Maximum Lubricated Maximum Unlubricated Ring Part Bearing Assemblies Load Capacity Load Capacity Number Equally Spaced L A (N) L R (N) M (Nm) L A (N) L R (N) M (Nm) xØc* xØc* R xØc* xØc* R Each Additional xØc* xØc* R xØc* xØc* R xØc* xØc* R Each Additional xØc* xØc* xØc* xØc* R xØc* xØc* R R R Each Additional xØc* xØc* xØc* xØc* xØc* xØc* Each Additional xØc* xØc* *See Note 4 *See Note 4 To calculate the life of this type of system, first obtain a value for the load factor L F by entering the values for L A, L R, and M in respect of the proposed duty, into equation 2 below, together with the maximum load capacities from the table above. M L [2] L F = + A L + R See note 2 on page 24 M(max) LA(max) LR(max) The life for the system can be read from the nomogram below (for lubricated systems) or on page 26 (for systems running dry) by taking the life figure on the lower scale opposite the appropriate value for L F on the upper scale (see example, page 26). Load/Life Nomogram for Lubricated Systems Notes 1. In certain applications in which the bearing assemblies rotate with the load, and this has large L R or M components, it may be beneficial to space the bearing assemblies unequally around the ring. Consult BWC for details. 2. SPEED OF OPERATION. PRT ring, segment and track systems are rated for speeds of 1m/s without lubrication or 1.5m/s when lubricated. Greater speeds may be tolerated at reduced loads. Consult BWC for details. 3. SHORT STROKE OPERATION. The life of PRT ring, segment and track systems will be reduced when the length of the path traversed in each cycle is very short. For path lengths below 0.2m, the life will reduce pro-rata with the path length, e.g., a system with a 0.08m stroke will have its life reduced by a factor of 0.08m 0.2 = 0.4 compared to that calculated from the appropriate nomogram. 4. Øc is the contact diameter, i.e. the diameter of the circle which passes through the points of contact between bearing assemblies and the ring. This will be equal to the P.C.D. of the ring ± 9, 20, 37 & 64mm for the 12, 25, 44 & 76 sections respectively (depending on whether the bearing assemblies are running on the outside or inside of the ring). 25

28 Load/Life Calculations Load/Life Calculation Examples Load/Life Nomogram Nomogram for Unlubricated for Systems Unlubricated Systems Example 1 A track system consists of: 1 x TR R180/C; 1 x TNM-44-B870-2xAK; 1 x TR R180/C; 1 x TNM-44-B870-2xAK; 1 x FCP The carriage carries a dead weight such that the mass of the load and the carriage together is a total of 40kg whose center of mass is over the middle of the carriage. The center of mass is 80mm above the slide V s. The speed of operation is 0.7m/s and the system is lubricated with lubricators which are supplied as part of the fixed center carriage. L 1 = 40kg x 9.81m/s 2 (g) = 392.4N L 2 (centrifugal force see note on page 22 = DV 2 /R) L 2 = 40kg x (0.7m/s) m = 83.7N M S = L 2 x 0.08m = 83.7N x 0.08m = 6.7Nm M V = M = 0 M L F = + M (max) M V M S + + L 1 + L 2 = MV(max) MS(max) L1(max) L2(max) = The value of 0.49 for the life factor L F can then be entered into the nomogram for lubricated systems to obtain the linear life. Reading from the nomogram on page 25 we see that the life corresponding to an L F value of 0.49 is 2,900km. Example 2 An antenna is mounted on a R ring which rotates in 6 x RLJ-25 bearing assemblies. The system is lubricated with 5 x LB-25 lubricators. The antenna rotates once per second and the mass of the rotating assembly (which includes the ring, platform and the antenna) is 8kg. The center of mass of the assembly is 100mm from the axis of the ring, and 150mm above the ring V s. The system is required to work on average 36 hours per week. L A = 8kg x 9.81m/s 2 (g) = 78.5N Speed of the center of mass: 1 rev/s = 2 x π x 0.10m x 1 = 0.63m/s L R = DV 2 /R = 8kg x (0.63m/s) m = 31.8N M = L R x h = 31.8N x 0.15m = 4.77Nm From the table on page 27 we find that M (max) = ( x 37) x Øc = 261 x ( ) = 96.8Nm. L A(max) = x 150 = 1050N; L R(max) = x 100 = 600N. M L F = + M (max) L A LA(max) + L R LR(max) 4.77 = = Reading from the nomogram on page 25 we see that the life corresponding to an LF value of is 39000km. 1 revolution =.351 x π = 1.1m. Each week the system runs for 3600 revs/hour x 36 hours = 143km. System life = = 273 weeks = 5.25 years 26

29 Motion Without Limits Example 3 A feeding mechanism incorporates an R R90 slide ring segment and FCP fixed center carriage. This mechanism has a paddle which pushes components onto a conveyor via a curved path. The pusher is powered by a rotary actuator which engages on a pin on the center of the carriage plate, 70mm above the center line of the V s. The mass of the carriage assembly is 10kg and the center of mass is 70mm from the system center. When the mechanism is pushing products onto the conveyor, the pushing force F P is 200N which acts 100mm from the center of the system and at a height of 60mm from the center line of the V s. The length of travel is 150mm and the system is lubricated by lubricators supplied with the fixed center carriage. The application is slow speed and low acceleration, so centrifugal and inertial forces can be ignored for the calculation. L 1 = 10kg x 9.81m/s 2 (g) = 98.1N L 2 = 0 Reaction force on carriage pin = F P x mechanical advantage = F P x [( ) 306] = 200 x = 265N M = 265N x 0.07m 200N x 0.06m = 6.55Nm M V = 200N x 0.1m = 20Nm M S = 98.1N x 0.07m = 6.87Nm M M V L F = + + M (max) MV(max) M S MS(max) + L 1 L1(max) + L 2 = L2(max) = Reading from the nomogram on page 25 we see that the linear life corresponding to an L F value of 0.67 is 1200km, however, due to the short stroke the system should be derated by applying the short stroke correction (see note 3 on page 25). The life from the nomogram must therefore be multiplied by = The correct linear life of the system thus calculated is 1200 x 0.75 = 900km or 6 million strokes. Example 4 A textile cutting machine uses a PRT track system consisting of 1 x TR R180/C; 1 x TNL-76-B2040 2xAK; 1 x TR R180/C; 1 x TNL-76-B2040 2xAK; 1 x FCP The carriage carries a knife which experiences a resistance force of 200N at a distance of 100mm from the system center, and the blade is offset by 60mm from the centerline of the V s.the carriage is driven by a timing belt which engages a pin in a yoke on the side of the carriage. The line of the force is offset by 110mm from the system center. The carriage and knife assembly weighs 15kg and travels at 1 m/s. The knife only cuts while the carriage is on the lower of the two straight portions of the track. This system is lubricated. On lower straight section: L 1 = 0 L 2 = 15kg x 9.81m/s 2 = 147.2N Cutting force = Driving force M = 200N x 0.06m 200N x 0.025m = 7Nm M V = 200N x 0.10m + 200N x 0.11m = 42Nm M S = 147.2N x 0.04m = 5.9Nm M L F = + M (max) M V + MV(max) M S MS(max) + L 1 L1(max) + L 2 = L2(max) = The corresponding life figure from the lubricated nomogram on page 25 is 6000km. On the curved sections there is no cutting force and the driving force will be small, but there will be a centrifugal force = DV 2 /R = 15kg x 1 2 / = 37.5N plus the weight of the carriage. On the top straight section there is only the weight of the carriage acting. The worst case loading anywhere in the system other than on the lower straight portion occurs on the bottom of the curved sections where the various load components are as follows: L 1 = 0 L 2 = 15kg x 9.81m/s N = 185N M = 0 M V = 0 M S = 185 x 0.04m = 7.4Nm From these figures, a life factor of 0.10 can be calculated, as above. This life factor corresponds to a linear life of 140,000km. Because the life calculations show that the expected life on the section where the cutting is done is 23 times shorter than on the return section of the track, the wear on the return section can be ignored for the purposes of this approximate life prediction. On this basis the system will last for 6000km 2040mm = 2.9 million circuits of the track. Notes In applications where a ring slide or track system experiences a range of loads within a cycle which all significantly contribute to the wear, an appropriate allowance should be made. Calculations for such duties fall outside the scope of this catalog. Consult BWC for details. 27

30 Track System Data/System Adjustment Fixed Center Carriage Play At Straight/Curve Transition Zones (see page 18) PRT fixed center carriages are designed to have the same fit on both straight slides and curved segments of the radius for which they are specified. When the carriage traverses the joint between these two components, a small clearance will appear between the female V s of the bearing assemblies and the male V s of the straight and curved slides. The amount of this clearance is given in the table below. CARRIAGE TYPE MAXIMUM CLEARANCE FCP FCP FCP Not for use with Track Systems FCP FCP FCP FCP FCP FCP The figures given in the table above are the theoretical clearance (in mm). In those applications which preload the bearing assemblies against the slides, not all of this clearance will appear as play, but as a slight reduction in the preloading of the system. In these instances the carriage will have a freer movement as it goes between straight and curved section than it does when it is entirely on the straight or curved sections. In most duties this momentary loosening of the carriage is unimportant. However, in some applications it may be undesirable. In such cases, customers should consider using the bogie type carriage (see page 23) which does not develop clearance in the same way when traversing from straight to curved sections. System Adjustment To obtain the best performance from a PRT ring, segment or track system, care should be taken to ensure that it is correctly assembled and adjusted. The bearing assemblies should be assembled onto the carriage or base plate and the securing nuts of the concentric bearing assemblies should be fully tightened. The eccentric bearing assemblies should be rotated to their outermost positions using the adjusting wrench (see page 15) in order for the carriage to be installed directly onto the track, or for the slide ring to be installed within its encircling bearing assemblies. The eccentric bearing assembly fixing nuts should then be semi-tightened and the hexagon flanges rotated until the bearing assemblies captivate the track or slide ring with minimal preload. (In the case of a carriage running on a track, it is important that the eccentric bearing assemblies be rotated in the direction of the arrows in the illustration.) The correct condition of adjustment should be assessed by rotating the bearings of each bearing assembly by means of holding them between forefinger and thumb while preventing the ring or carriage from moving such that the bearings skid against the slide. A uniform degree of resistance should be felt, but the bearings should be able to be rotated without difficulty. Once adjusted in this manner, the eccentric bearing assembly fixing nut should be fully tightened, using the adjusting wrench to prevent further rotation of the bearing assembly. A further check should be made to ensure the correct condition of adjustment. It should be noted that the load/life calculations assume a light preload as is described above. Systems which are preloaded more heavily than this will suffer a reduction in the life as compared with that predicted by the calculations. In some circumstances, it may be difficult to gain access to the hexagonal flange for the purposes of system adjustment. In these situations it is possible to adjust by rotating the eccentric bearing assembly using an allen key located in the hexagonal socket in the end of the stud, and to tighten the securing nut at the same time using the socket tool (see pages 14 & 15). Due to the reduced control associated with this method, it is only recommended when the adjusting wrench method above is not possible. When adjusting fixed center carriages, the lubricators should first be removed in order to gain access. When adjusting bogie carriages, the steps outlined in the adjustment procedure on page 23 should also be observed. In cases where an assembled system is supplied, the carriages will be supplied already adjusted. 28

31 Motion Without Limits 29

32 HepcoMotion DTS Driven Track System Complementary to the HepcoMotion Ring Slides & Track System* from Bishop-Wisecarver, the DTS is an easily-assembled unit providing a facility to drive carriages around a track circuit under either continuous or intermittent motion. At all times the carriages are rigidly guided along the precision track and can thus maintain accurate alignment and resist deflection from external loads. The carriages are usually positioned at equal pitches as specified by the customer and are connected to a high strength timing belt. Aware that customer's integrated equipment could be damaged in the event of a jam, a Trip Latch mechanism allows each carriage to disengage from the drive belt if motion is impeded. The DTS has been designed with no protrusions above the level of the carriage mounting surface to enable customer's fixtures or components to overhang the carriages if required, and also to allow clear access for loading purposes. The design allows plenty of space for the accommodation of other equipment including effective guarding of the mechanism. The DTS is supplied by BWC as a complete unit, ready to be incorporated into the customer's machine or framework. It is compatible with MCS Machine Construction System** and can therefore be supplied as a free-standing unit if required. The system is available with either an AC Geared Motor or a Gearbox with an IEC flange suitable for many motor choices. A plain output shaft is also available to enable customers to attach indexing units or other drive sources. The DTS comes in two basic sizes incorporating Track System sizes 25 and 44 (see Ring and Track System section of catalog for details). Each size of DTS is available in either: High Tensile Strength 10mm Pitch Timing Belt with drive profiles attached to the belt at the desired spacing, transmits power to the carriages. Carriages of the fixed center type* are used on the DTS pitched at 10 mm increments from a minimum of: 110 mm on the size system, 160 mm on the size system. Track Sizes* provided for the DTS are: 25 mm track width with 351 diameter segments Ref. DTS and 44 mm track width with 612 diameter segments Ref. DTS Oval circuit format or Rectangular circuit format The lower cost oval circuit is of fixed width, while the rectangular circuit may be ordered to any width above the minimum prescribed. Both types of circuit can be ordered to any length above the minimum prescribed. (See dimensions W and L pages 34 & 35). Applications utilizing intermittent motion will benefit from the Carriage Locking System which can be provided along any straight section of the circuit to precisely position and lock the required number of carriages at their stationary positions. Customers can therefore rely on precise location of their components while other operations take place. * Ref. Ring and Track System section of this catalog **Ref. BWC catalog: MCS Machine Construction System Carriage Locking System (optional with intermittent motion) - Aligns specific carriages to a repeatable position anywhere along any straight section of the circuit to +/-0.05 mm. The slight compliance of the belt allows each carriage to be guided to its exact stop position by cam roller. Individual or multiple locking devices can be operated by a single air cylinder (air service unit, valves and restrictors not provided). The stationary position of each individual carriage can be adjusted to precise requirements by simply unclamping and moving the locking arm. Complete repositioning of carriages can also be achieved. 30

33 Motion Without Limits Pulley Bearing Units - with sealed bearing cartridges can be adjusted to provide tension for the belt. The bearings are greased for life. Any one of the pulley bearing units may be specified as the drive unit, which will then incorporate a 25 mm diameter plain shaft extension for motor mounting or for the attachment of other power sources. More than one drive unit per system may be specified. Drive pulleys have teeth, idler pulleys are plain. The drive motor may be selected from a range of compatible AC Geared Motors supplied by BWC. Alternatively, customers may choose from a range of gearboxes with IEC flanges suitable for connection to other motors (see page 37). Trip Latches - transmit the drive from the belt to the carriages and can be set to trip out of engagement at any force up to 60N thus protecting customer's integrated equipment. When disengaged, the trip arms clear the belt and remain in their retracted positions until manually re-engaged. Customers requiring early warning of a disengaged carriage should fit proximity sensors at frequent positions around the circuit. Customers are advised to choose the standard Trip Latch safety system, where loads permit. Lower cost fixed belt/carriage connectors are also available. Sensor Mounting Brackets (optional) - can be positioned anywhere along a straight section and are available from BWC to suit M8 threaded proximity switches (not supplied). Intermittent motion will normally require PLC control via outputs from proximity sensors at the stop positions. Proximity sensors are also necessary to warn of carriage disengagement when using the recommended Trip Latch carriage/belt connection system. The carriage locking cam houses the actuator for the proximity switches. If the Carriage Locking System is not required, dedicated proximity switch actuators may need to be specified (see page 39). End Plates - support the pulley bearing units and ring segments of the track and connect to the support beams. They are constructed in aluminum to minimize weight. Support Beams - form the framework of the DTS and are comprised of a special high precision aluminum extrusion to support the straight sections of the track. The support beam is compatible with the MCS Machine Construction System**. The beams feature T slots to accept a variety of fasteners available for attaching customer's components. A plastic cover strip is available to close off the T slots and provide a routing for wiring. Large DTS units will incorporate aluminum profile cross members for strength and for ease of attachment to customer's equipment. 31

34 Application Examples Continuous Motion: Due to the predictable path and high stiffness of the DTS, it is possible to perform accurate tasks on the move in precise registration with other mechanisms. Performing tasks on the move enables slow processes to be carried out at a fast rate. Work can be carried out on the periphery of a product by designing the circuit to mimic the product shape. The DTS is therefore the ideal choice for applications such as: High Speed: LETTER SORTING LABELING LAMINATING DEVELOPING PRINTING GLASS CUTTING ADHESIVE APPLICATION PACKAGING PAINT SPRAYING Intermittent Motion: Where reliable positioning of a product is required with stability for operations to take place during the stationary or moving cycle, the DTS is the obvious choice in preference to friction driven pallet systems which are slow and complex. A great advantage of the DTS is its ability to be programmed to stop at any position or number of positions around the circuit. Typical applications for intermittent DTS systems are: Fast Action: TOOL CHANGERS ASSEMBLY SYSTEMS COMPONENT PICKING TEST & INSPECTION SYSTEMS MEDICAL DOSING WIRE FEEDING COLLATION SYSTEMS 32

35 Motion Without Limits Typical Applications Optical Lens Assembly Lenses are loaded by pick and place units onto clamp fixtures mounted on each carriage. The top carriages are accurately located using the Carriage Locking System. Optical adhesive is applied between the lenses, which then pass through an ultra violet light box to activate the hardener. The lenses are finally inspected for optical clarity and then released onto an accept or reject conveyor. On the return, the empty fixtures are brushed clean. The vertical orientation of the system allows excess adhesive to drip onto a collector and lenses to be ejected from the system by gravity thus avoiding the cost of further pick and place units. 33

36 Data and Dimensions DTS Spacer Spacer Rectangular circuit W min = 250 Oval circuit L min = 250 Belt adjustment on all pulleys Section X X Pulley tooth AT10 Circumference = 1320mm 9 Drive Shaft 85 X 48 Idler Shaft Carriage spacing 110 min X X M6 mounting holes 34

37 Motion Without Limits DTS Y Pulley - 60 tooth AT10 Circumference = 600mm Oval circuit L min = 450 Rectangular circuit W min = Section Y Y Carriage spacing 160 min X M8 mounting holes 35

38 Selection and Specification Dynamic Parameters Excess speed combined with overloading of the carriages can result in disengagement of the trip latches at the bends where the carriages rapidly accelerate and decelerate. Maximum speed will also be affected if the center of gravity of the carriage load overhangs externally, or if the system is configured in the vertical plane. Some high-speed applications may benefit from the optional fixed method of connection from belt to carriage, in which case a torque limiter on the primary drive should be considered. Such overload protection may not be sufficiently sensitive to avoid damage. There is no fundamental limit to the number of carriages in a system, for instance 50 carriages each carrying a reasonable load may well be acceptable. Also, there is no fundamental limit to the length of track although support beams may need to be joined. In all cases it is important to inform BWC of the complete dynamic and static data relating to your application including the effect of raising and lowering carriages if the track is to be configured vertically. Specifying system parameters 1 Specify dynamic parameters Carriage load. External forces. Full velocity profile including accelerations, dwells, speeds, duty cycle and required life. 2 Make an initial selection Consider the physical size and weight of the component to be carried and make an initial selection of system size. Parts mounted to the carriage can overhang the sides as the design allows clearance. As a guide to weights a size 25 carriage would typically be used up to 20 kg with 40 kg being usual for size 44. Both systems can carry higher loads than this (see Ring Slides and Track System section, page 24) and static loads of 200 and 400kg respectively are possible. 3 Calculate the carriage static and dynamic loadings Use the Ring and Track System section pages to determine if the initial choice of carriage is suitable for the application making reference to the lubricated condition. Laying out the track 4 Choose the track shape required Oval or Rectangular and specify the drive unit position(s) 1 to Choose the number of carriages you require An even number of carriages will usually be selected in order to produce a symmetrical carriage layout. 6 Select the carriage spacing The spacing must be in 10 mm increments. Carriages will usually be spaced equally apart. Minimum spacing for a standard carriage DTS = 110 DTS = Calculate the overall dimensions of the system given: N = number of carriages S = carriage spacing (ignoring belt stretch) L = System length (between centers of pulleys) W = System width (between centers of pulleys) Oval system DTS NS = x (2L + 600) DTS NS = x (2L ) Rectangular system DTS NS = x (2L + 2W +600) DTS NS = x (2L + 2W ) Note: The above equations yield approximate answers. BWC will size systems exactly prior to manufacture. If the calculated length is not in line with requirements, select an alternative number of carriages or carriage spacing and recalculate. If a mechanical indexer is used as a drive source or the DTS is integrated into the customer s machine, drive ratios may have to be considered. 8 Check the trip load of each carriage Using conventional mechanical calculations, allowing for friction, external load and acceleration (inertial force) ensure that at no time does the linear force on any single carriage exceed 60N. If this does occur then the trip latches will disengage and the carriages will become disconnected from the belt. Inertial disengagement limits The carriages on a DTS system travel faster on the curved section than on the straights. As each carriage moves between straight and curve, acceleration produces an inertial reaction force on the trip latch. This means that for any given mass on a carriage, there is a maximum speed (measured on the straights see graph below) beyond which carriages are liable to disengage. The fixed carriage/belt connection may allow the 60N force to be exceeded. Please consult BWC. Specifying drive source & control Mass of carriage kg DTS DTS Select a suitable drive source DTS Inertial Tripping Carriage Load vs Maximum Linear Speed Linear Speed m/s BWC can supply, as an option, a comprehensive range of Geared AC Motors and drives and worm gearboxes for direct coupling to the DTS. Some common selections together with performance data are shown in the table (above right). 36

39 Motion Without Limits Additional sizes and more detailed information can be found in BWC's DLS (Driven Linear Transmission and Positioning System) catalog. Note that considerably higher linear forces can be achieved by incorporating more than one drive unit utilizing geared motors of the WG7 design. This configuration gives the advantage of sharing the drive load between pulley bearing units. Alternatively, BWC can supply the DTS drive unit shaft(s) prepared to receive the customer's drive source. DTS with AC Geared Motor Nominal Linear Working Nominal Linear Motor Power Motor Gearbox Gearbox Rated 50Hz Speed Range Force kw Type Ratio Linear Force m/s m/s N L/ S/ L/ L/ DTS with AC Geared Motor Nominal Linear Working Nominal Linear Motor Power Motor Gearbox Gearbox Rated 50Hz Speed Range Force kw Type Ratio Linear Force m/s m/s N S/ L/ L/ L/ L/ The DTS will produce the Nominal Linear force at speeds ranging from 50% to 100% of the Nominal Linear Speed. The DTS will perform with a lower force and duty cycle over a much wider speed range from 10% to 160% of the Nominal Linear Speed. The Gearbox Rated Linear Force is the force produced when the gearbox is on a service factor of 1.4. This is based upon a fast operation for 8 hours per day. Allowable forces can be increased if the application is less arduous than this. Please contact BWC's Technical Department for details. Motor/Gearbox Dimensions ø W øg Shaft Detail 8 JS9 M8x16 = = 74 K1 ø50 ød T Type of Type of Motors Gearbox Weight/kg Gear Unit Motor D of motor G2 K1 W H7 T & gearbox 71S/L WG7 80S/L L

40 Optional Equipment Carriage Locking System Specify the stations on the circuit where you require carriages to be locked in position Locking Assembly Section A A DTS 25 A B L Cylinder Assembly Section B B A 50 B Locking Assembly Section A A DTS 44 A B Cylinder Assembly Section B B 50 A B 38

41 Motion Without Limits Motor Options (Supplied by BWC) Electro Magnetic Brake. Torque Limiter. Programmable variable speed AC Drive. Special gearbox flange for customer's own motor (Contact BWC for details). Dedicated Proximity Switch Actuators Required if proximity switches are to be used without a carriage locking system. Normally fitted to each carriage. Sensor Mounting Brackets Specify the number of brackets and their positions, if required to be fitted. Fixed Belt/Carriage Connectors Alternative to trip latches. T-nuts/T-bolts Specify quantity and part number. T Slot Covers Specify part number and length in mm. Special Drive Shaft The drive shaft is plain and nominally 25 mm diameter. If you require a keyway or reduced shaft diameter please specify details. FLANGE NUT PART NO. M8 x 17A 8B M8 x 19A 10B T-BOLT PART NO. M8 x 13L* M8 x 18L* M8 x 33L* T-NUTS PART NO. M M M M A 10 B L Extra Length Carriages Specify length in mm and mounting hole details. Note: Bearing assembly mounting holes and positions cannot be altered. (Ref. Ring and Track System Section of this catalog.) T-BLOCK PART NO. M M M MCS Machine Construction System Support Frame Supply a drawing of the frame. (Ref. MCS Machine Construction System catalog.) 20 T-SLOT COVER PART NO * L is the minimum protrusion of the T-Bolt stud above the aluminum profile. SUBMIT DATA REQUIRED (PAGES 36 TO 39) AND YOU WILL RECEIVE YOUR SYSTEM LAYOUT Operational Safety Since the DTS is a mechanism which forms part of a larger machine a CE mark is not required, but each unit is supplied with a Declaration of Incorporation which will enable the machine builder to include it as part of the CE marking criteria for his complete machine.* The operating instructions, mechanical guarding and electrical safety are the responsibility of the user incorporating the DTS into their machine, and these should be designed in line with the requirements outlined in the Certification of Incorporation. It is not intended that the Trip Latch be considered a safety device other than for the protection of the machine itself. 39

42 Notes 40

43 Motion Without Limits APPLICATION DATA SHEET Company: Contact: Address: City: Phone: State: Fax: Zip Code: System Orientation: Load: Stroke Length: Velocity: Accel/Decel: Linear Accuracy: Repeatability: Duty Cycle: Environment: Temperature: Additional Forces: horizontal lbs in in/s in/s 2 in/ft in in/day factory F lbs vertical N m m/s m/s 2 mm/m mm m/day food grade clean room other C N Product/Machine Description: Additional Requirements: Expected Volume: Date Needed: System Sketch BISHOPWISEC ECARVERER 2104 Martin Way, Pittsburg, CA phone: fax: info@bwc.com

44 Bishop-Wisecarver Corporation: Manufacturer of the original DualVee guide wheel and industry leader in guided motion technology, and exclusive North and Central American partner and distributor for HepcoMotion products since Bishop-Wisecarver DualVee Guide Wheels LoPro Linear Motion System MadeWell Crown Rollers MinVee Linear Slide System UtiliTrak Linear Motion Guide 3D CAD DRAWINGS Download 3D CAD files for our complete product line at GOT A TOUGH APPLICATION CHALLENGE? Ask Bud at PRODUCT ORDERS Please call Bishop-Wisecarver with your specific application requirements. Our technical staff is available to assist with your custom solution. Bishop-Wisecarver provides a written one year limited warranty assuring the customer that its products conform to published specifications and are free from defects in material or workmanship. HepcoMotion DAPDU2 Double Acting Profile Driven Unit DLS Driven Linear System DTS Driven Track System GV3 Linear Guidance and Transmission System HDCB Heavy Duty Compact Beam HDCS Heavy Duty Compact Screw HDLS Heavy Duty Driven Linear System HDRT Heavy Duty Ring Slides and Track System HDS Heavy Duty Slide System MHD Heavy Duty Track Roller Guidance System MCS Machine Construction System PDU2 Profile Driven Unit PRT Precision Ring and Track System PSD120 Profile Screw Driven Unit SBD Sealed Belt Drive Simple-Select SL2 Stainless Steel Based Slide System Complete terms and conditions and warranty information is available at Bishop-Wisecarver Corporation All rights reserved Part # CAT-PRT Revised May 2008