Surface grinding machine relative to the lathe, milling machines and other CNC system used later, because the special requirements of its numerical control system. Over the last decade, using CNC technology, continuous grinding machine wheel dressing, automatic compensation, automatic exchange wheel, multi-table, automatic transmission and operating functions such as clamping the workpiece can be achieved, this technology has gradually spread in the plane grinding machine. In recent years, Hanover, Tokyo, Chicago, and domestic exhibitions and other large machine tools, CNC grinding machine in the whole grinding up the majority of the exhibits, such as Germany BLOHM company, ELB grinders and other famous company's factory is no longer producing normal grinder, Japan's Gang This, Nikko and other companies are also mass-produced full-featured CNC Surface Grinders, CNC Surface Grinders in the development of high-grade, while a positive development, low-grade CNC flat grind.
A few years ago Germany ELB produced BRILLIANT series of two coordinates of CNC forming grinder, its vertical and horizontal axes for the CNC, vertical hydraulic control, wheel dressing is installed in the table using diamond wheel, a wider scope of application; SUPER-BRILLIANT series of is a coordinate plane and forming CNC grinder, lathe bed made of natural granite, geometric precision of high linear rolling guide rail with mechanical drive without recoil, thus ensuring a better workpiece surface finish; BRILLIANT-FUTURE for the above two series of improved products, artificial granite, bed making, vertical with hydrostatic guideways, toothed belt drive, vertical and horizontal guide for pre-loading linear rolling guide, ball screw drive, three-axis CNC control AC servo motors, 0.5μm measurement resolution. At the same time ELB has developed the latest technology with contemporary grinding products, namely, mechanical and electrical integration, and computer technology-based CAM-MASTER series of flexible grinding unit, CAD-MASTER series and COMP ACT-MASTER series of grinding machining center, the control shaft up to 24 axes, and since the full implementation of modular design, so that special grinder to shorten manufacturing cycle, ELB has also developed a variety of high-machine, such as the SFVG100 / 2-machine with a grinding head can be tilted, continuous finishing, creep feed to, oblique cut into the grinding function, with the 11-axis CNC control, like a grinding machining center. British JONES & SHIPMAN Company and the United States AB has developed a system for A-B8600 CNC FORMAT5 CNC Surface Grinders, from CNC-controlled hydraulic valves, drivers can speed vertical movement, horizontal and grinding with ball screw feed, DC servo motor drive, intermittent grinding wheel dressing, CRT graphic simulation display. At the same time can also be equipped with other types of numerical control system to meet different user requirements.
Now, with the continuous improvement of semiconductor integration, the new system in shape getting smaller and smaller, more compact structure and function, an increase of remote communication, remote diagnostics, multi-machine network, etc.; user interface to the WINDOWS system closer increase mouse, remote control, etc. operations piece. FANUC major release this year 18I, 16I, 20I, 21I systems, SIEMENS is the 840D, 810D, 802D are compact structure of the system. There are some manufacturers such as: Taiwan Precision Machinery Research and Development Center developed PA8000NT series CNC controllers, on the use of WINDOWS NC operating system, and NT real-time multi-processing core, a single-program processing speed of up to 2000 / s, a single pre - Reading to address a number of up to 1000, with AART (pre-conditioning to adapt to technology) and parameters to optimize learning function, can follow the error tends to zero, the software processing path filters can reduce the cutting process, the result of acceleration of change is too large by produced by mechanical resonance, thereby improving the surface roughness; equipped with servo flexible, with +,-10V analog servo interface, while providing international standards for SERCOS digital servo communication interface; PLC ladder program design, structure, statement, function blocks, instruction code, flowcharts and other 5 kinds of syntax, ease of design, communication and maintenance; with computer remote communication, real-time remote maintenance functions; control axis and the spindle can be expanded to up to 64 axes, I / O point can be extended to the 792/528 points, using Pentium processor, high-speed PLC processing speeds of up to 25K.
In addition to the world famous professional factory CNC system SIEMENS, etc. have been developed and produced a number of suitable flat or profile grinding system, some level grinding plant itself is also actively developed applicable to the grinding machine CNC system. Are:
Siemens SINUMERIK 840D system, which system has more than 20 root servo axes, the coordinate continuous stroke control, manual data entry or via an external computer input, remote diagnostics, can be reduced with the grinding wheel diameter change itinerary, Dresser Auto-compensation, Ball Screw clearance error compensation.
Siemens 3G systems are designed for grinding and developed for man-machine dialogue with the operation of prompt device, in the axis is tilted, it can be linear and circular interpolation, in the grinding operation that often appear in circulation, such as the spindle swing, with an external signal interrupts the implementation of procedures, cut into wheels, wheel dressing and other special preparation functions, procedures for the preparation of the fixed cycle. Its not only the use of external measuring device (switch signals), but also when connected to a head when the appropriate measure to control the device directly compared with the final size.
United States ALLEY-BRANDLY produced 8400CNC, 8600CNC numerical series, for lathes, milling machines and grinding machines, which can be controlled 8400CNC up to 6 servo axes can be either 2-axis circular interpolation, can be any 3-axis spiral interpolation , 6-axis linear interpolation. 8600CNC series up to be able to control 17 coordinates, including the eight participating interpolation axis, 8-bit control shaft and a spindle, with a graphical display, expand the branch program, display processing time, high-speed process validation, tool life monitoring and other functions.
There are also such as Germany ELB with the UNICON system jointly developed by the University. Japan's Okuma Iron Works OSP5000G-G, OSP30-NF and other self-developed flat and profile grinding CNC system, its OSP5000G-G can control up to nine coordinates, of which six coordinates can be linkage with 12-inch color display, human-computer Dialogue programming, automatically determines the cutting coefficient, can use the floppy disk input into the FMS system, the minimum pulse equivalent, mobile equivalent and testing equivalent are 0.1μm, flat grinding also features a full closed-loop mode Inductosyn.
Although there are flat-grinding plant with CNC OEM's system, but develop their own software, use it more suitable for flat and profile grinding, such as Germany JUNG company Siemens SINUMERIK 810 as the foundation for leveraging the company's proprietary software, using JUNG KONTUR programming language, dressing for grinding wheel shape and have graphics capabilities support operations. Japan's Okamoto companies in FANUC CNC system hardware, developed OPL language used in grinding and so on.
Today linear motors, balancing techniques, processes the growing development needs, but also greatly improved the ergonomics of the machine is suitable for measurement technology development and utilization of the numerical control system to enhance the electrical machine even more powerful automation capabilities.
本文转自：China Industry News
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