FLEXI
An innovative project at the top of technology. New FLEXI vertical machining centres, with movable worktable and 5 simultaneous axes, have an universal field of application and they are conceived for multiaxes machining of small and large series of complex 5-side workpieces, in one positioning, in precision mechanics, automotive, medical, aeronautical, aerospace industries and in mold and die production. The versatility of FLEXI machining centres configurations allows to satisfy all customers production needs thanks to a ±110 tilting head and a built-in 660 mm diameter rotary table. Several configurations and optional equipment enable to produce custommade machinery to suit the manufacturing needs of the individual user. 840 mm 7 mm FLEXI line is equipped with last generation Heidenhain, Siemens e Fanuc CNCs boosting its accuracy and productivity qualities. The high ergonomics operator panel is positioned on a sliding front structure. New FLEXI machining centres are supplied with new guards conceived according to most innovative industrial design criteria that sum up ergonomics, easy access to the work area, wide visibility during machining, comfort during workpiece loading/unloading operations, optimal fumes and swarf containment, easy use and maintenance.
FLEXI 5 7 SPEED, VERSATILITY, ACCURACY IN ONE SOLUTION SPEED Tilting head (B axis) and rotary table (C axis): feedrate 60 rpm, acceleration 30 rad/s 2 X, Y, Z axes feedrate up to 50 m/min X, Y, Z axes acceleration 3,5 m/s 2 VERSATILITY Tilting head (B axis) ± 110 Rotary table (C-axis) diameter 660 mm Z-axis traverse 950 mm Horizontal spindle nose/table min. distance 225 mm ACCURACY Optical scales on linear axes Differential temperature control of spindle, tilting head and rotary table by a conditioning circuit Compensation of thermal drifts by means of temperature probes connected to the CNC The bed of FLEXI machining centres is designed to assure stability and balance. It is prearranged for the sliding of the movable worktable (X-axis), that moves along its whole traverse leaning on it thus assuring the highest accuracy and repeatability values, and of the column (Y-axis = 700 mm). Large size ball recirculating screws combined with motor and direct digital drives offer high dynamics and rapid traverses up to 50 m/min. The headstock consists of a rigid structure sliding on the column (Z-axis). All movements take place with roller recirculation sliding blocks. Machine accuracy is assured by pressurized optical scales on X, Y and Z axes, and by high resolution encoders on B and C rotating axes. POWER The available torque, power and speed of Sigma motorspindles assure the best continuous machining conditions
1 2 3 MOVING TABLE The configuration with moving worktable on X-axis allows to enhance the accuracy values and final quality of the machined workpieces. STRUCTURE The structural concept allows to enhance the rigidity features of the machine in case of extreme exploitation of motorspindle power and torque. MOTORSPINDLE Motorspindles entirely developed and manufactured in SIGMA as a guarantee of reliability and long life, with features of high performances in terms of power (33 kw), torque (up to 180 Nm) and rotation speed (up to 12.000 rpm). 4 COMPENSATION OF THE THERMAL DRIFTS Thanks to a system of probes positioned in strategic points of the machine, temperature changes are detected during machining and spindle and linear axes drifts are automatically compensated by the CNC, in order to assure constant accuracy and positioning repeatability. 5 TILTING MILLING HEAD Tilting milling heads (B-axis) for simultaneous 4-5 axes machining are developed and manufactured in SIGMA, driven by high performance powerful torque motors to ensure high precision, dynamics, rotation speed and torque. 6 ROTARY TABLE Rotary tables (C-axis), embedded in the moving work table, for continuous 5- axis machining with a diameter of 660 mm, are driven by high performance powerful torque motors to ensure high precision, dynamics, rotation speed and torque. 7 TOOL MAGAZINE Tool magazines are structurally disconnected from the machine axes movements. This allows for easy inspection and direct replacement of the tools on the tool chain, in total safety, without stopping the working cycle. 8 SIGMA TOOL CHECK Electronic device dedicated to all operations related to direct call of tools, single tool management (assignment or modification of a tool code, display and modification of tool compensation data) and tool magazine instruction, for direct interface with the CNC, without stopping the working cycle. 9 DYNAMIC ADJUSTMENT The dynamic adjustment during milling allows to optimize the dynamic behavior of the machine in the various working conditions through 5 sophisticated customized CNC functions: standard machining, powerful roughing, accurate finishing, high precision, working speed of the machined workpiece.
FLEXI 5 7 8 7 9 5 4 3 11 1 6 12 10 2 SIGMA vertical machining centres and flexible milling cells incorporate excellence in performance deriving from the SIGMA DNA, a mix of concepts, experiences and exclusive innovations gained and consolidated by SIGMA through its decades of history, which are applied across activities related to product development of all machine models. 10 11 12 USER PANEL The User panel, with a high ergonomic content, developed according to innovative industrial design, is positioned on a sliding front structure. MACHINE GUARDING Machine guarding is designed according to the most innovative industrial design criteria, by integrating the ergonomic functions such as: easy access to the working area, wide visibility of the operating area, easy loading/unloading of workpieces, containment of fumes and cutting waste, easy maintenance. AUTOMATION Process automation is assured by the modular systems for pallet workpiece management that can be easily integrated with machines in stand-alone configurations or in cells or with flexible manufacturing islands.
Application markets The new vertical machining centers FLEXI have a universal application and have been designed to machine complex workpieces on 5 sides in one single positioning, for small and large serial production, in precision mechanics, automotive, medical, aeronautics, molds and dies fields.
FLEXI 5 7 Motorspindles The standard motorspindle is driven by a synchronous motor supplying 33 kw power, 180 Nm torque, 12,000 rpm speed. It is refrigerated by the circulation of a fluid. Its temperature is controlled by an external refrigerator. HSK-A-63 taper is available as option with 33 kw, 1 Nm and 18,000 rpm. Power/torque diagram [Nm] [kw] [Nm] [kw] 1000 800 100 80 1000 800 100 80 400 180 0 130 100 80 S6 (40%) S1 (100%) S6 (40%) S1 (100%) 50 40 33 30 27 22 10 8 400 0 1 100 86 S6 (40%) S1 (100%) S6 (40%) S1 (100%) 50 40 30 33 24 10 8 40 4 50 4 17 16 10 1 rpm 250 1000 1750 1983 3000 4000 6000 10000 15000 100 2 32 30 10 1 rpm 250 1000 00 2626 2665 3000 4000 6000 15000 18000 2 Machine overall dimensions FLEXI 5 / FLEXI 7 3825 5730 2880 2900 3556 3563 4400 4385 3825 5730
TECHNICAL FEATURES WORKING AREA FLEXI 5 FLEXI 7 X-axis traverse mm inch 1.250 49 2.100 83 Y-axis traverse mm inch 700 28 700 28 Z-axis traverse mm inch 950 37 950 37 X - Y - Z axes feedrate m/min ipm 50-50 - 50 1969-1969 - 1969 40-50 - 50 1969-1969 - 1969 X - Y - Z axes acceleration m/s 2 ft/s 2 3,5 12 3,5 12 Spindle nose - table surface distance mm inch 840 33 840 33 Horizontal spindle - table surface distance mm inch 225-1.175 9-46 225-1.175 9-46 Linear axes slideways type with roller recirculation sliding blocks Axes motion system type ball recirculation screws TABLE Table surface mm inch 730 x 1.450 28,7 x 57 730 x 2.300 28,7 x 90,5 Max. load on fixed worktable kg lb 1.400 3086 2.500 5512 Distance btw table surface/floor mm inch 865 34 865 34 TILTING HEAD (B AXIS) Motor type torque torque Traverse degrees ± 110 ± 110 Torque (nominal/max./ max. clamping) Nm lb*ft 900-1.400-3.000 664-1033 - 2213 900-1.400-3.000 664-1033 - 2213 Rapid traverse rpm 60 60 ROTARY TABLE (C AXIS) Motor type torque torque Traverse degrees 360 360 Diameter mm inch 660 26 660 26 Max. load kg lb 1.000 25 1.000 25 Torque (nominal/max./ max. clamping) Nm lb*ft 770-1.0-3.400 568-885 - 2508 770-1.0-3.400 568-885 - 2508 Rapid traverse rpm 60 60 LINEAR AXES ACCURACY Measuring system X - Y - Z axes type absolute pressurized optical scales Positioning uncertainty P (VDI/DGQ 3441) µm 6 6 ROTARY AXES ACCURACY (B-C) Positioning / Repeatability arcsec 5 / 4 5 / 4 OTHER DATA Weight kg lb 10.000 393701 approx. 14.000 551181 approx. Floor space: width x depth x height m ft 3,8 x 4,4 x 2,9 12,5 x 14,4 x 9,5 5,8 x 4,4 x 2,9 19 x 14,4 x 9,5 SPINDLE UNIT Spindle speed rpm 12.000* 18.000 Tool holder taper type SK40* - HSK-A-63 - BT40 HSK-A-63 Max. available power S1 / S6 kw hp 27 / 33 36 / 44 24 / 33 32 / 44 Max. available torque S1 / S6 Nm lb*ft 130 / 180 96 / 133 86 / 1 63,4 / 88,5 Constant power from spindle speed (S6) rpm 1.750 2.000 Motor type motorspindle motorspindle TOOL MAGAZINE Tool magazine capacity Nr. 40* 48 60 Max. tool diameter (adjacent pockets) mm inch 80 3 80 3 70 3 Max. tool diameter (with free side pockets) mm inch 280 11 280 11 140 6 Max. tool lenght mm inch 300 12 300 12 300 12 Max. tool weight kg lb 8 18 8 18 8 18 Chip-to-chip change time s 5 approx. 5 approx. 5 approx. Magazine type bidirectional chain Tool selection type random Tool changer type double gripper arm Tool magazine accessibility type independent load/unload station Tool magazine control type Sigma Tool Check electronic control panel * standard MOD. 04-E 07.02/16 Technical data may be subject to modification by SIGMA Technology without notice. Designed by: Jobs SpA Via Emilia Parmense, 164 29122 Piacenza (Italia) Tel. +39 0523 549611 Fax +39 0523 549750 com.com@jobs.it sigma@sigmaekkon.it www.jobs.it www.sigmaekkon.it COMPANYAUTHORISEDTOUSETHEMARK