1 Introduction Next page
CNC tool grinding machines, especially multi-axis CNC and multi-axis CNC tool grinding machines are high-quality, high-quality grinding tools for manufacturing high-precision and complex-shaped tools with high precision and precision. They are also complex and automated in all kinds of CNC machine tools. Mechatronics high-tech products with high degree of precision, high precision and high reliability have considerable technical difficulties in research and development. Grinding of tools by CNC tool grinding machines must rely on tool grinding technology and programming technology, and the grinding technology and programming software of various complex shape tools are currently patented or confidential in foreign countries. Because of this, there are only a few manufacturers in the world that can produce high-performance CNC tool grinding machines.
In order to improve the level and quality of China's tool manufacturing process, some domestic tool manufacturers and application manufacturers have introduced CNC tool grinding machines from abroad. After a long time of use, these CNC machine tools are basically intact and can still be used. CNC systems have lagged far behind modern CNC system technology and are obsolete. Some domestic manufacturers have developed CNC tool grinding machines, but because of the self-manufacturing of the mainframe and the introduction of the numerical control system, this CNC tool grinding machine is not only costly, but also has no integrated tool grinding technology due to the universal CNC system. Programming software makes it difficult to grind tools (especially complex tools). Therefore, the CNC system of these domestic CNC tool grinding machines must also be modified.
The above-mentioned numerical control system transformation usually adopts the latest special numerical control system of foreign CNC tool grinding machine manufacturers. Although this kind of transformation scheme has the advantages of mature technology, low risk, reliable reliability, and high price, poor programming and other defects. Huazhong 2000 type tool grinding machine special CNC system is an integrated CNC system successfully developed for various rotary tool grinding processes based on the scientific research results of the “Eighth Five-Year†key research project “CNC universal tool grinding machine product developmentâ€. . With this system, the above problems can be solved well, and the cost is still low.
2 The function and structure of the CNC system after the transformation
2.1 Basic functions of the system
After the tool grinding machine was modified by the Huazhong 2000 tool grinder numerical control system, the system has the following three basic functions.
The universal CNC system function system retains the basic functions of the original general-purpose CNC system, such as the axis control function of up to 16-axis CNC 9-axis linkage, program verification function, MDI function, linear, arc, and spiral interpolation functions, M, S , T function, fault diagnosis display function, embedded PLC function, etc.
Automatic NC programming function The biggest feature of this system is that it integrates the tool grinding programming software on the basis of the standard universal CNC system, and directly inputs the structural size and processing technology of the tool to be polished in the graphical menu mode on the CNC system. Automatic programming and processing to achieve integration of programming and processing.
Tool measurement and automatic tool setting function In this system, the tool measurement function is integrated in the CNC system. In the CNC grinding of the tool, the automatic tool setting solves the problem of cumbersome manual tooling and poor precision.