RCD CNC ROTARY TABLE. RCD series

Transcription

1 R N ROTRY TLE R series

2 The Ultimate N Rotary Table Zero-backlash Technology elivers Unsurpassed Motion The Rollerrive N is a rotary table designed to meet the requirements of machine tool manufacturers for greater speed and accuracy. The Rollerrive Sankyo's zero-backlash reducer delivers accurate output motion that stands up to external disturbances, unlike gearmotors or torque motors. It offers excellent rotary positioning accuracy of 1 seconds or less, and can hold up to heavy cutting forces on hard steel. The heavy-duty Rollerrive N has no internal part wear and no loss of accuracy over long-term use, thus eliminating the need for regular calibration or adjustments. Theory of Operation of the Rollerrive The Rollerrive uses the roller gear mechanism, one of the finest motion control mechanisms available. The unit is constructed from an input shaft (the roller gear cam) and a turret (output shaft) fitted with roller followers. The roller followers are preloaded against a screw-like input shaft to completely eliminate backlash. Our proprietary adjustment mechanism provides optimum preload. The roller followers planted in the turret use internal roller bearings to transfer torque while rotating. This ensures zero backlash, outstanding precision, and excellent efficiency without causing wear, while providing long-term consistent accuracy. Exclusive zero-backlash construction Preload mechanism Turret (output) Roller gear cam (input) am followr eatures Rolling contact Preload No backlash (play). High accuracy and good efficiency. Preloadable for high rigidity. lampless machining reduces positioning time. No deterioration of accuracy over time, initial accuracy is maintained for an extended period. 1

3 No Maintenance and Excellent Price Performance onsistent long-term accuracy without maintenance. Worm gear models ccuracy declines over time. Requires maintenance to achieve initial accuracy. Rollerrive ccuracy is consistent with no maintenance even after million operation cycles. (arc sec) Positioning ccuracy ging Requires maintenance at regular intervals Test High Positioning Error Low The Rollerrive graph is based on internal testing. (enter distance of test unit: 17) rop in accuracy over time Rollerrive Worm gear rotary table (example) 1 Million 2 Million 3 Million 4 Million Million onsistent long-term accuracy Operating cycles without maintenance. Maintenance Maintenance ost omparison with a Worm Gear Rotary Table Offers Long-term Use without Maintenance Worm gear models Maintenance costs occur once or twice a year to adjust the backlash. Rollerrive Long-term use is possible without any mechanical maintenance. eats the cost of a worm gear even after adding annual running costs to the initial investment cost. Price performance continues thereafter. (ased on internal calculations.) 2 1 Initial ost versus nnual Maintenance osts Worm gear rotary table Roller gear rotary table ost becomes less than the worm gear table in three years year 1Worm gear rotary tables require maintenance twice a year. 2ssumes an annual running cost of 3% (oil changes, etc.) for both types. ost simulations are based on a table diameter of about 2 mm. Shorter positioning time Time comparison for 9 positioning onventional worm gear lamping using hydraulic pressure or air pressure is required to suppress backlash. Rollerrive Zero backlash and high rigidity eliminate the need for clamping. ompared to the worm gear type, positioning time is reduced to about one third. onventional worm gear (with clamp) Rollerrive Rotate Unclamp lamp Processing workpiece Rotate workpiece Positioning time reduced to about one third Processing (ased on in-house calculations) Extended ccuracy ompared against a worm gear for over million indexes. Test conditions Table size: Output table diameter: 17 mm Load inertia:. kgm 2 Index angle: 36 (unidirectional) Indexing time:.3sec Results after million indexes: Item Worm gear Rollerrive Variation in positioning accuracy 24.2sec.9sec acklash (measured at R6) 18 μm (1 μm 33 μm) - (ased on internal testing data.) Variation in positioning accuracy [sec] Variation in positioning accuracy Variation after million indexes: 1 Million 2 Million 3 Million 4 Million Million 24.2sec Worm gear Rollerrive.9sec

4 Product Lineup / pplications Product Lineup R Heavy duty & versaitile model HORIZONTL VERTIL Φ 1 Φ 17 Φ 2 Φ 2 Φ 3 uxiliary equipment Support table Tail stock pplications utting tool grinding Higher accuracy by Zero-backlash movement Turbine blade High acceleration processing utomotive parts Improving productivity by speed of.4sec / 9 deg. Medical parts ompact axis Molding parts High speed & accurate continuous cutting 3

5 N Rseries Product ode Rotary table 1-7 R1-2 3 R Model Servo motor With brake Without brake *1 4 Motor mounting side onnector position onnector type Table shape R1 1 NU R Right Rear *3 lexible 1 Tapped holes R17 1 MITSUISHI L Left S Side R Receptacle 2 *4 T slot R2 1 - R2 *2 1 *2 SNYO R3 E E1 OKUM E 8 X X1 Others 9 J Options Standard / ustom High-accuracy model *,*6 ir / Hydraulic clamping Rotary joint *,*6 E With MP scale With clamp J Internal type lank Standard lank None lank None H External type X ustom lank None 1 X 6 *1 If motor brake control is not possible, select a servo motor without brake. *2 or R1, select "Without brake". or R17 to R3, select "With brake". *3 If "lexible" is selected, the flexible cable code must also be selected. *4 or R1, the T slot table cannot be selected. * There is no hollow bore in the table when the MP scale (high-accuracy model) or rotary joint is installed. *6 Simultaneous installation of MP scale (high-accuracy model) and rotary joint is not supported. Motor mounting side onnector position onnector type / shape Table shape R L S R lexible cable S: Straight : ngled R1 (4)M8 1.2, 16P 7 R17 (8)M8 1.2, 14P 14 R2 (8)M8 1.2, 14P 17 R2 (8)M1 1., 18P 21 R3 (8)M1 1., 18P 2 2 *4 P6: Table with R dimensions S 3 - X Model Servo motors for rotary tables Type of flexible connector Type of connector at With brake Without brake* 1 at rotary table side customer side Length Standard / ustom -1 or R1 1 NU S Straight S Straight 3 3 m lank Standard -17 or R17 1 MITSUISHI ngled ngled m X ustom -2 or R or R2 and R3 *2 1 *2 SNYO E E1 OKUM X X1 Others Support table 1 ST1-2 3 J Model Options ir / Hydraulic clamping Rotary joint Standard / ustom ST1 or R1 With clamp J Internal type lank Standard ST17 or R17 and R2 lank None H External type X ustom ST2 or R2 and R3 lank None Tail stock 1 TSS1-2 M 3 R Model Type Handle side Standard / ustom TSS1 or R1 M Manual R Right lank Standard TSS13 or R17 and R2 L Left X ustom TSS18 or R2 and R3 4 4 X X Product Lineup pplications/product ode Specifications / imensions ompatible Servo Motor Models / Precision Ratings Main unit options uxiliary equipment ontrol methods for air / hydraulic table clamping Guidelines for rotary table selection / heck sheet for rotary table specifications Technical Information / Precautions 4

6 Specifications Specifications R1 R17 R2 R2 R3 Table diameter mm Φ 1 Φ 17 Φ 2 Φ 2 Φ 3 Table pilot bore diameter mm Φ Φ Φ Φ Φ enter height mm Table T slot width mm Keyway width mm lamp type (air. MPa, hydraulic 3. MPa) ir / Hydraulic ir / Hydraulic ir / Hydraulic Hydraulic Hydraulic lamp torque *1 N m Motor shaft equivalent inertia *2,*3 1-4 kg m Motor model (NU) α is2/- ( ) α is4/- ( ) α is8/4- ( ) α is8/4- ( ) α is8/4- ( ) Minimum setting unit deg Maximum table speed min Gear ratio *2 1/ 1/ 1/ 1/6 1/6 Indexing accuracy arc sec ±1 ±1 ±1 ±1 ±1 Repeatability arc sec Net weight kg llowable payload Upright position *4 Horizontal position W W kg (1) 7 (14) 7 (14) 2 (1) 2 (1) kg N llowable load x L with clamping L N m ontinuous holding *2,* N m torque Maximum output *2,*,*6 N m torque x L L N m llowable workpiece inertia kg m Extenal rotary joint (number of ports) * Internal rotary joint (number of ports) * MP scale (high-accuracy model) *7 MPRZ-36 (MHI) MPI-36 (MHI) *1 Values for R1, R17, and R2 are clamping torques when using an air hydro booster with a air pressure of. MPa as the supply source. *2 Values for motor shaft equivalent inertia, gear ratio, and continuous / maximum holding torque are given for NU motors. Please contact Sankyo if a different motor is to be used. *3 Motor shaft equivalent inertia does not include the inertia of the motor shaft. *4 The allowable payload value for upright mounting shown in brackets applies when a tail stock or support table is used. * The continuous / maximum holding torque is the allowable load torque when a clamp is not used. *6 Maximum holding torque should not exceed 1 seconds with 2% duty. *7 Simultaneous use of the MP scale (high-accuracy model) and the rotary joint is not supported.

7 N Rseries imensions R φ1 1 The drawings apply to the following specifications: NU motor, R side mounting, rear connector φ φ () (4)M8 1.2, 16P (6)M4.7, 8P φ1 +.1, 1P 41 ±. Product Lineup pplications/product ode Specifications / imensions R17 R φ6 +.3 φ φ3 φ φ3 φ Table T slot groove width Table T slot groove width ompatible Servo Motor Models / Precision Ratings Main unit options uxiliary equipment R2 R φ φ φ14 φ14 φ φ φ φ Table T slot groove width Table T slot groove width ontrol methods for air / hydraulic table clamping Guidelines for rotary table selection / heck sheet for rotary table specifications Technical Information / Precautions 6

8 Mount clamps (ccessories) R1, R17, R2: g + h (1 pc. each) R2, R3: i (4 pcs.) g Φ14 THRU h Φ14 THRU 1 i Φ18 THRU ompatible Servo Motor Models With brake NU MITSUISHI *2 SNYO OKUM R1 α is2/- ( ) H7S-48 HG7S- - L-ME24M-S R17 α is4/- ( ) H14S-48 HG14S- R281PGYM L-ME4M-4S R2 α is8/4- ( ) H14S-48 HG14S- R281PGYM L-ME4M-4S R2 α is8/4- ( ) H14S-48 HG14S- R21318HP9M L-ME4M-4S R3 α is8/4- ( ) H14S-48 HG14S- R21318HP9M L-ME4M-4S Without brake *1 NU MITSUISHI *2 SNYO OKUM R1 α is2/- ( ) H7S-48 HG7S- R287HXPGYM L-ME24M-SN R17 α is4/- ( ) H14S-48 HG14S- - L-ME4M-4SN R2 α is8/4- ( ) H14S-48 HG14S- - L-ME4M-4SN R2 α is8/4- ( ) H14S-48 HG14S- - L-ME4M-4SN R3 α is8/4- ( ) H14S-48 HG14S- - L-ME4M-4SN *1 If motor brake control is not possible, select a servo motor without brake. However, since the mechanism is not self-locking, please note that the table may rotate depending on the position in case of a power failure or similar. *2 The end part of HG series motor model will differ by the machine tool maker. 7

9 N Rseries Precision Ratings NO. Measurement Method R1 R17 R2 R2 R3 1 Parallelism between table top and reference surface for upright mounting.1mm.1mm.1mm.2mm.2mm Product Lineup pplications/product ode 2 Runout of table top.1mm.1mm.1mm.1mm.1mm 3 Runout of table reference bore.1mm.1mm.1mm.1mm.1mm Specifications / imensions 4 6 Perpendicularity between table top and reference surface for upright mounting Parallelism between rotary axis and guide blocks for reference surface for upright mounting eviation between rotary axis and guide blocks for reference surface for upright mounting.2mm (must not lean forward).2mm (must not lean forward).2mm (must not lean forward).2mm (must not lean forward).2mm (must not lean forward).2mm/1mm.2mm/1mm.2mm/1mm.2mm/1mm.2mm/1mm.2mm.2mm.2mm.2mm.2mm ompatible Servo Motor Models / Precision Ratings 7 Parallelism between rotating center and reference surface for upright mounting.2mm/1mm.2mm/1mm.2mm/1mm.2mm/1mm.2mm/1mm 8 Indexing accuracy ±1arc.sec ±1arc.sec ±1arc.sec ±1arc.sec ±1arc.sec Main unit options 9 Repeatability 8arc.sec 8arc.sec 8arc.sec 4arc.sec 4arc.sec Main unit options High-accuracy model y mounting a commercially available MP scale (MHI) to the rotary table, fully closed loop control can be realized. irect detection of the table's rotation angle enables indexing with high accuracy. uxiliary equipment MP scale configuration Servo motor Rotary table Machining center Servo amplifier ontrol methods for air / hydraulic table clamping MP scale bsolute (MPRZ) Incremental (MPI) MP scale / converter NU N support MITSUISHI -2J7 -K7-2J71 -K7M -2J K6 - -K6M / converter Notes 1. With the incremental specification, absolute detection is possible by combination with an absolute type servo motor. 2. The / converter must be provided by the customer. 3. Refer to the documentation of the respective manufacturer for operation instructions and information on the connection between the / converter and higher-level equipment. 4. "MITSUISHI" in the "N support" column refers to MITSUISHI N. Guidelines for rotary table selection / heck sheet for rotary table specifications Technical Information / Precautions 8

10 Main unit options Rotary joint Specifications Product type Size Max. number of ports Internal type External type Maximum actuation pressure R Internal type *1 6+1 *1 luid: *1 1+1 *1 ir.7 MPa / Hydraulic 6 MPa *1 *1 The +1 indicates the port in the center bore. *2 Make sure to furnish a line filter in the air supply line. *3 Under prolonged use a small amount of actuation oil may leak from the oil port toward the adjacent air port. If possible, the adjacent ports should be left open for use as drain ports. R1 +. (4)Rc1/ ±. +. (4)φ8.2 P φ R17,2 14 (6)Rc1/ E φ2 (φ17) +. (6)φ ± φ6 E 4 4 R2,3 (8)Rc1/ E G H φ83 φ3 (φ2) 1.4 ±. φ G H E 4 2 9

11 N Rseries Product Lineup pplications/product ode External type R1 Specifications / imensions Rc1/4 G (6)Rc1/ E 1.4 ±. +. (6)φ φ P φ6 G E 6 ompatible Servo Motor Models / Precision Ratings Main unit options R17,2 Rc1/4 G (6)Rc1/ E φ2 (φ17) +. (6)φ φ φ6 G E uxiliary equipment ±. ontrol methods for air / hydraulic table clamping Rc1/4 K R2, J H I G E (1)Rc1/4 +. φ46 φ8 +.3 φ3 (φ2) φ12.2 I H G J K E Guidelines for rotary table selection / heck sheet for rotary table specifications Technical Information / Precautions 1

12 uxiliary equipment Support table Specifications Specifications ST1 ST17 ST2 Rotary table model R1 R17 R2 R2 R3 Table diameter mm Φ 1 Φ 17 Φ 2 Table pilot bore diameter mm Φ Φ Φ enter height mm Table T slot width mm Keyway width mm lamp type (air. MPa, hydraulic 3. MPa) ir / Hydraulic ir / Hydraulic Hydraulic lamp torque *1 N m Inertia of rotating output part 1-2 kg m Maximum table speed min Net weight kg llowable payload *2 W kg N llowable load *2 x L with clamping L N m ontinuous holding *3 N m torque Maximum holding *3,*4 N m torque External rotary joint (number of ports) Internal rotary joint (number of ports) *1 Values for ST1 and ST17 are clamping torques when using an air hydro booster with a air pressure of. MPa as the supply source. *2 The allowable payload and allowable load values apply to the entire set including the rotary table. *3 The continuous / maximum holding torque is the allowable load torque when a clamp is not used. *4 Maximum holding torque should not exceed 1 seconds with 2% duty. 11

13 N Rseries uxiliary equipment Support table dimensions ST1 41 ±. (4)M8 1.2, 16P φ1 +.1, 1P Product Lineup pplications/product ode φ (4) φ (21) 1.. Specifications / imensions ompatible Servo Motor Models / Precision Ratings ST φ φ6 +.2 φ33 Main unit options uxiliary equipment ST Table T slot groove width ontrol methods for air / hydraulic table clamping φ φ φ φ Guidelines for rotary table selection / heck sheet for rotary table specifications Table T slot groove width Technical Information / Precautions 12

14 Support table options Rotary joint Internal type External type ST ±. Specifications Product type ST Size Max. number of ports Maximum actuation Internal type External type pressure *1 luid: *1 ir.7 MPa / *1 Hydraulic 6 MPa *1 The "+1" indicates a port using the center bore. *2 e sure to use a line filter in the air supply. *3 uring prolonged use, a small amount of actuation oil may leak from an oil port to an adjacent air port. If possible, the adjacent port should be left open as a drain port. +. (4)φ8.2 ST ±. +. (6)φ8.2 φ1.2 G φ φ6 E (4)Rc1/ Rc1/4 G (6)Rc1/ E ST ±. +. (4)φ8.2 ST ±. +. (6)φ8.2 φ1.2 G φ φ6 E (4)Rc1/ Rc1/4 G (6)Rc1/ E ST (6)Rc1/ E 4 14 φ φ12.2 φ2 ±. E ST2 2 2 Rc1/4 K I G E J H (1)Rc1/4 +. φ φ8 φ φ12.2 ±. J I K H G E 13

15 N Rseries uxiliary equipment Tail stock dimensions TSS Product Lineup pplications/product ode 13 φ8 14 φ4 MT3 1 Specifications / imensions Right hand (R) ompatible Servo Motor Models / Precision Ratings TSS φ φ8 Main unit options MT3 Right hand (R) 13 uxiliary equipment TSS φ8 ontrol methods for air / hydraulic table clamping 21 φ4 MT3 18 Guidelines for rotary table selection / heck sheet for rotary table specifications Right hand (R) Technical Information / Precautions 14

16 N rotary table ontrol methods for air / hydraulic table clamping Introduction This section provides information as well as precautions about generally recommended control methods that can be used with Sankyo N rotary tables that support air or hydraulic table clamping or motor braking. ecause the Rollerrive type N rotary tables do not have any structural backlash, clamping is not necessary within certain conditions. This approach eliminates the time required for clamping and unclamping. It allows positioning at maximum speed, while also consuming no energy for a air or hydraulic system. However, if a very high holding torque to maintain the table at the stop position is required, table clamping can be selected as an optional specification. * In actual use, the characteristics of the equipment installed by the customer and the functions that are targeted are also relevant. Please use the information provided here as a reference in setting up the appropriate control sequence for the specific application. Table clamping pplication Recommended application Using a machine tool servo motor Using a general type servo motor Points to note Serves for holding the table at the stop position during machining. fter checking the in-position signal of the drive motor, output the clamp command for the table clamp and check pressure with the pressure sensor. fter a specific interval, establish the clamp complete (positioning complete) state. In principle, servo should be ON, but it is recommended to make provision for servo to be switched O if the table clamp was activated while unbalanced torque is generated and the motor current exceeds 7% of the rated value. (The servo motor should be designed for absolute movement and the operation commands must also be issued as absolute values.) The following two types of servo motor control are recommended. (1) If servo ON is to be maintained, change proportional integral control to proportional control. This will prevent overload problems. (2) If servo is to be set to O, the servo motor's coordinates would be lost if the servo motor is designed for relative movement. To prevent this, an absolute movement type servo motor must be used, and commands must be issued as absolute values. The system is designed for the following operation sequence: ir/hydraulic pressure ON lamp, ir/hydraulic pressure O Unclamp. lamping can therefore not be performed when power or the air pressure source will go O. Motor braking pplication Recommended application Using a machine tool servo motor Using a general type servo motor Points to note Serves for holding the table at the stop position during power off or servo off. Use a servo amplifier or a servo ON/O signal from higher-level equipment to turn the motor brake on or off. raking operation is taken to be completed after a specific interval has elapsed. The ON timing should be as follows. irst use the servo ON signal to enable servo, verify that servo is ON, then release the brake. fter a specific interval for brake release has elapsed, the operation is taken to be completed. The O timing should be as follows. Use the servo O signal to set the brake to ON, and take servo O to be completed after a specific interval has elapsed. ue to the characteristics of the motor brake function, it cannot be used for holding the table in the stop position during machining or for table control. Otherwise machining accuracy may be affected. 1

17 N Rseries ontrol flowchart (for type with table clamp, motor brake, and machine tool servo motor) Start positioning Product Lineup pplications/product ode Servo ON command (brake release command) 1 ms delay *1 The timing should be as follows. Use servo ON signal to enable servo, verify that servo is ON, then release brake. fter a specific interval for brake release has elapsed, the operation is taken to be completed. Specifications / imensions Unclamp command heck for clamp O No Issue the unclamp command for the hydraulic clamp. heck for clamp O with pressure sensor (1). ompatible Servo Motor Models / Precision Ratings Yes heck for unclamp ON Yes 2 ms delay Move command heck for in-position No *1 No heck for clamp ON with pressure sensor (2). The operation is taken to be completed after a specific interval has elapsed. Issue the move command (index command). Verify that the in-position (move complete) state has been reached. Main unit options uxiliary equipment Yes lamp command heck for unclamp O No Issue the clamp command for the hydraulic clamp. heck for unclamp O with pressure sensor (2). ontrol methods for air / hydraulic table clamping Yes heck for lamp ON Yes 2 ms delay Positioning complete No *1 *1 This value is given only for reference and will depend on actual conditions. lso check the servo motor documentation for recommended values. heck for clamp ON with pressure sensor (1). The move operation is taken to be completed after a specific interval has elapsed. Guidelines for rotary table selection / heck sheet for rotary table specifications Technical Information / Precautions 16

18 Guidelines for rotary table selection < heck workpiece and tool dimensions > The diameter of the workpiece and tools should not exceed the diameter of the rotary table. < heck workpiece and tool weight > The workpiece and tool weight should not exceed the allowable payload of the rotary table. < heck machining load > ( Please note that the payload rating is different depending on whether the rotary table has an output clamp or not.) Ensure that the machining load when the table is stopped does not exceed the allowable load. Ensure that the machining load when the table is rotating does not exceed the allowable load. (The machining load torque during rotation must not exceed the continuous holding torque of the rotary table.) < heck workpiece and tool inertia > The workpiece and tool inertia should not exceed the allowable workpiece inertia of the rotary table. < heck for machining center interference > Ensure that the rotary table does not interfere with the cover, column, T etc. when moving. heck the motor mounting R/L position. < heck machining center table maximum payload > The combined weight of the workpiece, tools, and rotary table (support table weight) must not exceed the maximum payload of the machining center table. < heck performance of high indexing frequency model > heck the performance aspects of the rotary table and motor with regard to the following items: Workpiece and tool inertia Unbalanced load rive motor model Table rotation speed, acceleration and deceleration time during positioning, or positioning rotation angle and positioning time Stop (machining) time after positioning Required service life (number of positioning operations per day) x (operation days per year) x (operation years) Rotary table specifications R1 R17 R2 R2 R3 Table diameter mm Φ 1 Φ 17 Φ 2 Φ 2 Φ 3 enter height mm Mounted upright kg W llowable payload W Mounted sideways kg W kg N N llowable load x L with clamping N m L ontinuous holding torque *1,*2 N m Maximum holding torque *1,*2,*3 N m L x L N m llowable workpiece inertia kg m Net weight kg Support table ST1 ST17 ST2 Table diameter mm Φ 1 Φ 17 Φ 2 Net weight kg *1 The continuous / maximum holding torque values are given for NU motors. Please contact Sankyo if a different motor is to be used. *2 The continuous / maximum holding torque is the allowable load torque when a clamp is not used. *3 Maximum holding torque should not exceed 1 seconds with 2% duty. 17

19 N Rseries ttention: ontact person: [heck sheet for rotary table specifications] ate: Product Lineup pplications/product ode Machine tool manufacturer Model name Installation orientation Upright mount Sideways mount Upright/Sideways mount Other ( ) Motor manufacturer NU MITSUISHI SNYO OKUM Other ( ) Motor model Sankyo standard (Motor brake: Yes No) Special *1 : Model ( ) Motor supplied by Supplied by customer Supplied by Sankyo Motor mounting side Right Left onnector position Rear Side onnector type lexible plastic Receptacle Table shape Tapped holes T slot (R1: tapped holes specification only) MP scale requirement Not required Required: Supplied by customer Supplied by Sankyo MP scale type bsolute Incremental lamp requirement Not required Required: ir. Mpa *2 Hydraulic 3. MPa Rotary joint requirement Not required Required: Internal External Key stock Not required Required (2 pcs. for each model) Mounting clamps Not required Required (R1, R17, R2: g, h, 1 pc. each / R2, R3: i, 4 pcs.) astening T nut (for main unit mounting clamps) Not required Required (R1, R17, R2: 2 pcs. / R2, R3: 4 pcs.) oating color Sankyo standard Specified: ( ) able Not required Required able length 3 m m Specified: ( )m lexible cable connector (table side) Straight ngled able MS connector (customer side) Straight ngled able MS connector pinout Sankyo standard Specified: ( ) Support table Not required Required lamp requirement Not required Required: ir. Mpa *3 Hydraulic 3. MPa Rotary joint requirement Not required Required: Internal External Key stock Not required Required (2 pcs. for each model) astening T nut Not required Required (4 pcs. for each model) oating color Sankyo standard Specified: ( ) Tail stock Not required Required Handle side Right Left Key stock Not required Required (2 pcs. for each model) astening T nut Not required Required (2 pcs. for each model) oating color Sankyo standard Specified: ( ) *1 If specifying a motor, select a keyless, straight shaft type equipped with oil seal and brake. *2 ir type is available for R1, R17, and R2 only. or the air type, an air hydro booster is required separately. *3 ir type is available for ST1 and ST17 only. or the air type, an air hydro booster is required separately. Other special requests/requirements Specifications / imensions ompatible Servo Motor Models / Precision Ratings Main unit options uxiliary equipment ontrol methods for air / hydraulic table clamping Guidelines Guidelines for for rotary rotary table table selection selection / heck heck sheet sheet for for rotary rotary table table specifications specifications R-217/6-S Name of contact at Sankyo: Technical Information / Precautions 18

20 Technical Information acklash, lost motion, hysteresis loss < General hysteresis graph > y Hysteresis loss x Torsion angle - Rated torque acklash Lost motion -3% +3% % + Rated torque Torque acting on output * acklash Rotation angle which can arise even with zero torque (looseness) Lost motion Torsion angle of the midpoint of the hysteresis curve width which arises when applying ±3% rated torque Hysteresis loss Torsion angle where there is no complete return, when torque is applied in both forward and reverse directions < hysteresis graph >.3 Torsion angle [rad] Table diameter 2 mm Torque acting on output [N m] or a general reducer, the hysteresis graph can be obtained by applying torque to the output shaft, and plotting the generated torsion angle. acklash, lost motion and hysteresis loss can each be defined from the hysteresis graph, as indicated above. Lost motion and hysteresis loss depend on the material characteristics, and occur in all types of structures. acklash on the other hand occurs only when there are gaps or looseness in the structure. acklash has a major effect on accuracy, servo gain and similar factors, and must be minimized. With the using Sankyo's exclusive preload construction, backlash is completely eliminated and lost motion and hysteresis loss are controlled to extremely small values, based on the results of research on optimizing materials and structures. 19

21 N Rseries Efficiency This indicates the percent of input power which is transmitted to the output. The motion mechanism has high efficiency because it employs rolling contact. Efficiency varies depending on conditions such as load torque, rotation speed and temperature. urability < Test of changes in positioning accuracy over time > < Table diameter 2 mm > Efficiency [%] Output rotation speed 1 min min min -1 min Torque [N m] Product Lineup pplications/product ode Specifications / imensions ompatible Servo Motor Models / Precision Ratings Output positioning accuracy [arc. sec.] Exactness, forward direction (W) Exactness, reverse direction (W) Repeat accuracy, forward direction (W) Repeat accuracy, reverse direction (W) 62, 1,32, 1,, 2,, 2,7, 3,, 4,,,, Number of cycles Main unit options uxiliary equipment Test conditions Rollerrive size Test machine with table diameter 2 mm Output load weight 12 kg (Φ mm) Output load moment of inertia 4.69 kg m 2 Output rotation angle - 34 degrees (reciprocating) Output maximum rotation speed 1 min -1 cceleration time.1 sec Uniform speed time.47 sec eceleration speed time.1 sec In the, all rotating elements operate in a state of rolling contact, and thus there is almost no wear, or degradation in accuracy over time. There is almost no change in positioning accuracy after testing operation million times. This shows that the outstanding accuracy of the can be maintained over the long term. ontrol methods for air / hydraulic table clamping Guidelines for rotary table selection / heck sheet for rotary table specifications Technical Information / Precautions 2

22 Precautions ir supply Sankyo's N rotary tables come standard equipped with an air purge outlet. (Use it to blow out condensation Pressure setting:.2 MPa ir consumption: 1 L/min and coolant to prolong the life of electrical parts and prevent rust in the motor housing.) Supply clean air for IN the air purge by referring to the drawing shown. (o NOT block the exhaust outlet.) OUT ir combination 2-1G- (SM) (Pressure Gauge G36-2-1) * Reference Model Lubrication Sankyo's N rotary tables use high-performance lubrication oil. lthough the lubricant is chemically and thermally stable, it should be changed every 3, hours of operation in order to ensure longer product life. Even if operated less than 3, hours, the oil should be changed once per year. The condition of the oil can be checked with the oil level gauge while the unit is in the stop condition. heck the oil level and color. If the level is low or the color has changed, change the oil regardless of the number of operation hours. Some air bubbles may form in the oil during operation. This is normal and does not affect quality. * e sure to use only the lubricant specified below. Otherwise service life may be reduced and parts may deteriorate. Specified lubricant: Mobil SH629 (VG1) Use in grinding machines When used in grinding machines, the seal device on the outer periphery of the table may become damaged. The warranty does not cover such damage. Maximum rotation speed The maximum rotation speed for the table given in the specifications refers to the indexing speed. onsult with Sankyo if the table is to be rotated continuously. Otherwise, the table will heat up and lose accuracy, causing overload alarms with the servo motor. General Precautions Under the Japanese trade regulation, Rollerrive N can be restricted to supply or export to a country which may produce weapons or related products. imensions and specifications are subjected to be modified without notice. ontents of this catalogue is published in ecember 217. Whole or part of the contents, mechanisms, logos, drawings belongs to Sankyo-Seisakusho, Japan. No part of the catalogue is allowed to copy or redistributed to the third party without the permission of Sankyo Seisakusho. 21

23 N Rseries Global network ITLY ROX VIETNM O., LT. THILN SINGPORE SNKYO WORKS(THILN)O., LT. ontact us SNKYO MIYGI SEISKUSHO O. SNKYO SEISKUSHO O. SNKYO SHIZUOK SEISKUSHO O. KORE TIWN HE OIE OIE TORY GENT SNKYO MERI IN. Head Office Tabatashinmachi, Kita-ku, Tokyo, Japan (International department ) PHONE: +81-() X: +81-() E-MIL: overseas@sankyo-seisakusho.co.jp Group ompany Mon-ri M8:3-12: PM13:-17:3 UT + 9: (JST)(Except public holidays and company holidays) SNKYO MERI IN. 16 State Route 47 Sidney, Ohio, 436 U.S.. PHONE:+1-() X:+1-() sales@sankyoamerica.com SNKYO HIN TRING O., LT. [ SHNGHI HE OIE ] Room 113, lock, No.391 Guiping Road, Shanghai 2233 hina PHONE:+86-() X:+86-() sales@sankyochina-trading.com [ SHENZHEN RNH OIE ] Unit13, 13/., Tower, NEO-uilding, No.69 Shennan venue, utian istrict, Shenzhen hina PHONE:+86-() X:+86-() [ TINJIN RNH OIE ] Room 276, Jinhuang uilding, No.2 Nanjing Road, HeXi istrict Tianjin hina PHONE:+86-() X:+86-() [ GUNGZHOU RNH OIE ] Room 913, Xing Pu buliding, No.12 Guan Hong Road, Guangzhou Economic evelopment Zone, Guangzhou 167 hina PHONE:+86-() X:+86-() HNGZHOU SNKYO MHINERY O., LT. No.218 Jiang ong 2 Road, Hangzhou Jiang ong Industrial Park, Xiaoshan Zone, Hangzhou, Zhejiang, hina PHONE:+86-() X:+86-() ROX VIETNM O., LT. Plot No. M1, Thang Long Industrial Park II i Su, My Hao, Hung Yen, Viet Nam PHONE:+84-() X:+84-() SNKYO WORKS (THILN) O., LT. 9/31 Moo, Phaholyotin Road, Klongnueng, Klong Luang, Patumthani 1212 Thailand PHONE:+66-() X:+66-() Product Lineup pplications/product ode Specifications / imensions ompatible Servo Motor Models / Precision Ratings Main unit options uxiliary equipment KORE TIWN 12-48, igital Empire2, 88 Sinwon-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Korea PHONE. +82-() X. +82-() No.2, Gongyequ 4th Rd., Xiehe Vil., Xitun ist., Taichung ity 4768, Taiwan (R.O..) PHONE () X () E-MIL: tw-sales@rollerdrive.com ontrol methods for air / hydraulic table clamping Guidelines for rotary table selection / heck sheet for rotary table specifications Technical Information / Precautions 22

24 ealers * Product specifications may be changed without prior notice. efore ordering, please contact our sales department. ll patent rights and copyrights for parts of mechanisms described in this catalog and for trademarks, images, drawings etc. belong to Sankyo Seisakusho o. "Rollerrive" is a registered trademark of Sankyo Seisakusho o. in Japan. R-217/12E(Z)