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26 PF 61 Universal Cylindrical Grinding Machine

27 PF 61 Universal Cylindrical Grinding for Flexible Production Thanks to its modular design, the PF 61 universal cylindrical grinding machine is your ideal choice for the flexible manufacturing of long parts. Optimum machine variants are available for the complete machining of the most varied workpiece geometries, whether by external, internal or contour grinding. A total of 11 wheel head variants serve implementation of a broad range of applications for machine and vehicle engineering. The spectrum of workpieces which can be machined ranges from shafts and shaft-like parts, such as main spindles, piston rods, printing press rollers, cylinders and rotors, up to large-scale crankshafts and drive and gearbox components, etc. Further variants are currently being developed to cater for additional specific processes. The PF 61 universal cylindrical grinding machine is the representative of the tried and tested PF series for medium workpiece dimensions. The different versions can be supplied WORKPIECES MAX ø 1200 kg 520 mm 4000 mm for workpieces with max. lengths between 1,000 and 4,000 mm and with a tailstock for weights up to 500 or up to 1200 kg. Additionally the incorporation of the innovative diameter and length measuring system DIATRONIC 22 is a unique feature for machines in this class. The X axis can also be equipped with an optional hydrostatic guide. Your advantage ultimate precision through: Complete external and internal machining in one clamping Compensation of thermal influences and elastic deformation through measurementcontrolled grinding with subsequent verification and logging by the simple-to-program DIATRONIC 22 system Wheel head variants the choice is yours Variant N S USB UNB Max. grinding wheel dimensions ø x B Depending ø (508)/610: ±30º ø (508)/610: ± 10º Swivelling range no swivelling no swivelling ø 720/762: ± 8º ø 720/762: ± 8º ±30 Special grinding operations Surface grinding Taper grinding Radius grinding 2

28 UNIQUE: DIATRONIC 22 FOR MEASUREMENT-CONTROLLED GRINDING Your advantages: In-process measuring of variable diameters during grinding Wide measuring range No additional setting-up Simple programming Verification and logging Long-term high positioning accuracy Technological flexibility through: Linear travel measuring systems in the Comprehensive range of user-friendly software for cylindrical and contour grinding technology axes Highly dynamic performance from the Variety of static and driven dressing tools (for SIMODRIVE 611 digital drive system and corundum, CBN and diamond grinding wheels) SINUMERIK 840 D control Programs structured in the form of a work High-precision B axis for exact-fit tapers schedule with provisions to mask individual work steps Use of 2 external grinding wheels with differing specifications for rough and finish grinding or for the grinding of different materials in one clamping Simple description of the grinding cycles by way of parameters Measured economic efficiency through: Low piece costs as a result of fast machining and setting-up times especially in case of complete machining in one clamping Production reliability thanks to the simpleto-program DIATRONIC 22 system, this is particularly beneficial when working with cost-intensive workpieces Use of grinding wheels up to 762 mm in diameter, meaning greater depths of wear and thus a longer service life for the grinding wheel High availability and low maintenance costs Teleservice with fast reaction times Further variants in development UIB UNN n version (508) / 610 / 720 / 762 x 100 / 125 mm -45 to to to to to +190 Concave and convex grinding Free length contours Contour grinding 3

29 Always a precise solution Your advantages: No need to change grinding wheels for different workpiece demands Shorter completion and cycle times compared to previous technologies through optimised tool use and reduction of the workpiece changing times by up to 50% thanks to complete machining Improved workpiece qualities, in particular attainment of ultimate true-running accuracy by completing grinding in one clamping Secure investment thanks to low piece costs, high availability and low maintenance expenditure 4

30 1. 2. Finish grinding of a printing press plate cylinder with 2 materials Variant UNN 2000 Taper angle tolerance at the journal: 2 µm over 80 mm Grinding of a piston rod Variant N 1500 True-running accuracy < 5 µm Contour grinding of a printing press cylinder with lead-in edge Variant N 3000 Form tolerance of the lead-in: ± 10 µm Internal cylindrical grinding of a tube Variant UIB 1500 Cylindrical error < 10 µm 5

31 Technology makes the difference Z axis Tailstock The constantly high precision in the machining of the most varied workpieces is made possible by the following technical equipment variants and their decisive special features: Z axis with flat-v slideway: Outstanding straightness and optimum smooth motion thanks to the ground slideway and coated, scraped workpiece table X axis X axis in standard design, with preloaded rolling-contact guide and additional damping carriage (hydrostatic guide as an option): Precise positioning with a feed accuracy of 0.5 µm B axis for wheel head swivelling: Excellent repetitive accuracy B axis 6

32 DIATRONIC 22 Wheel head with external grinding spindle Tailstock with slideway quill and stationary or rotating centre: Designed for high long-term accuracy Wheel head with external grinding spindle: Constant rigidity over the full speed range thanks to the rolling-contact bearings of the motor spindle Wheel head with internal grinding spindle: Constant, programmable peripheral speed for the grinding wheel Wheel head with internal grinding spindle Workpiece spindle head with rolling-contact bearings: rotating centre guarantees high rigidity for high workpiece weights Comprehensive range of accessories with coolant systems, extraction, drivers, steady rests, etc.: Versatile and flexible equipment options Workpiece spindle head 7

33 Technical data PF 61 PF 61 Grinding length mm 1000 / 1500 / 2000 / 3000 / 4000 Centre height mm 260 Max. workpiece weight between the centres kg 500 / 1200 (with steady rest up to 2500) Max. wheel head diameter x width mm (508) / 610 / 720 / 762 x 100 / 125 / (250) Z axis with flat-v slideway and X axis with rolling-contact or hydrostatic slideway (variants N and USB) Max. traversing speed mm/min Resolution mm B axis Max. swivelling range (depending on version) deg. from -45 to +225 Workpiece spindle head MK 6, roller bearings Spindle torque Nm 600 / 145 / 55 Speed (depending on version) rpm 1 to 100 / 300 / 1000 Max. spindle nose torque Nm 3000 / 850 / 850 Quill tailstock MK 5, workpiece weight up to 500 kg Slideway quill with stationary locating centre Stroke mm 100 Quill tailstock MK 6, workpiece weight up to 1200 kg Slideway quill with rotating locating centre Stroke mm 150 Wheel head, external spindle Drive power kw 15 / 20 / 22 / 30 Max. wheel peripheral speed - steplessly programmable m/s 35 / 50 / (63) Bearing (depending on version) Rolling-contact or hydrodynamic Wheel head, internal spindle Drive power (selection) kw 1 / 1.5 / 4 / 7.5 Measuring system DIATRONIC 22 Standard measuring range 1.1. mm 10 to 170 Standard measuring range 1.2. mm 70 to 230 Standard measuring range 2.1. mm 40 to 240 Standard measuring range 2.2. mm 100 to 300 Control system CNC - Siemens SINUMERIK 840D Drive system Digital Siemens SIMODRIVE 611D F G PF 61 Grinding length in mm A B C D E F G E C D Standard height 2280 A B 8

34 Operator-friendly, practice-oriented control and measurement Various options are offered, such as: - Profibus DP - Workshop-oriented programming system (WOP) - Remote diagnosis / teleservice including tool loading and changing, without any special knowledge in programming. Special applications and workpiece contours, polygons, cams, ellipses, free profiles, etc. can all be programmed without difficulty. The grinding-machine-specific user interface, which is based on the open SIEMENS control system, was developed by SCHAUDT. It provides for optimum ease of operation, and allows setting-up of the machine, The implementation of the Safety Integrated technology from Siemens raises availability by reducing the number of electromechanical switching elements and thus the idle times. The control and drive concept of the PF 61 stands out by its practical orientation and ease of operation. The user interface complies with the Windows GUI standard. Comprehensive error diagnoses have been implemented to reduce idle times and maintenance expenditure. The whole sensor technology, such as the DIA- TRONIC 22, sparking-out and balancing, has been integrated into the machine-specific user interface. Work schedule display during machining Working with a grinding menu All grinding machines of the PF series are equipped as standard with digital control and drive technology, namely the SINUMERIK 840D numerical control system, in conjunction with SIMODRIVE 611D drives. These systems guarantee outstanding accuracy and high traversing speeds. Set-up menu for DIATRONIC 22 Display of a non-circular workpiece contour in WOP 9

35 Studer Schaudt GmbH Hedelfinger Str. 137 D Stuttgart Tel. +49 (0) Fax +49 (0) /04 GB