With the rapid development of advanced manufacturing technology, there are still many problems in the application of numerical control technology. The author put forward very insightful ideas on these issues.
Automatic processing plays an important role in modern machining. The high speed and high precision of CNC machine tools are increasingly favored by the machinery industry. In the use of CNC equipment, our understanding of the application of CNC machine tools is also Gradually to maturity, how can we maximize the efficiency of CNC machine tools, I feel that there are some problems that must be resolved.
1. At present, grass-roots technical cadres and management cadres in enterprises, especially state-owned enterprises, do not understand the principles of CNC machining and the characteristics of CNC systems. They are not familiar with the development of parts processing technology and procedures, and are unable to compile parts for CNC machine tools. The processing technology and scientific processing procedures can not manage scientifically the numerical control equipment. Advanced processing methods and backward management methods have greatly affected the efficiency of CNC machine tools.
Second, the majority of CNC operators come from ordinary machining, and their cultural quality is uneven. In the application of numerical control equipment, the idea of ​​general equipment processing is applied. The characteristics of high-speed cutting of CNC machine tools, selection of CNC tools, and lack of selection of cutting parameters Scientifically, the pros and cons of processing procedures and the level of processing efficiency depend entirely on the level of quality of the operators, and it is impossible to maximize the processing efficiency of CNC equipment.
Third, due to specific reasons, the introduction of numerical control equipment system is complex, equipment grades are uneven, and it brings great difficulties to the application and programming of technicians and operators. This greatly restricts the transfer of parts.
Fourth, the general system memory capacity is not very large, in the processing of a wide variety of parts, a large number of processing programs because they can not be stored and have to repeatedly delete and type, limited system resources and sometimes can not even store a complete complex parts Processing program. Frequent repetitive part preparations waste a lot of work time and directly affect the efficiency of CNC machine tools. The repeated programming of the processing program also affects the stability of the program.
5. Since a large number of processing procedures are manually programmed, it is difficult to ensure the accuracy of the calculation of complex surfaces, and it is difficult to ensure the processing requirements of the parts, and even waste products appear.
Sixth, most companies now have established their own local area networks. Computers have used CAD/CAM computer-aided design and computer-aided programming software in large quantities. Now companies are gradually implementing the CIMS management system. However, the grass-roots lack of convergence with the upper-level technology departments. Environment, and therefore unable to obtain strong support from the technical department.
In my opinion, if we really want to make use of the high efficiency of CNC machine tools, we must start by strengthening the application of CNC machine tools to the management and popularization of CNC machine tools.
First, it is necessary to carry out high-quality training and examinations for grassroots technology management cadres, so that grassroots technology management cadres can truly understand the processing principles of CNC systems, and the establishment of numerical control processes and numerical control programs.
Second, the use of high-speed development of computer technology, change the way the operation of CNC machine, a comprehensive online management of CNC machine tools.
At the end of 2000, we cooperated with Ryster Company, installed and used the CNCLINK3.0 CNC program automatic management system developed by the company, and conducted remote network management for the CNC machine cluster of our factory. The system uses the server to provide an extremely large program storage space for each CNC machine. The machine operator can browse, create, edit, delete, upload, and download all the machining programs on the machine side. Significant savings in wasted processing time due to repeated programming and typing. It can also share the processing programs stored in the server among the various machine tools, facilitating the transfer of parts between machine tools. At the same time, it also provides single-channel DNC processing, (CNCLINK4.0 has been able to achieve multi-channel DNC processing) to expand the processing capabilities of CNC machine tools.
The user management function of this software can enable authorized technicians to intervene in the NC program on the server side, input, modify and delete. The log query function can automatically record the content and time of all the operations between the machine tools.
The networking of CNC machine tools also created a convergence environment for CIMS management with upper-level networks. Enables technical management departments to use CAD/CAM and cutting databases to optimize CNC machining processes and precise machining programs. Utilizing the latest scientific research results from the mechanical processing industry, the backward advanced experience-based machining methods have been transformed into computer-controlled scientific guidance. Way up. Production management cadres can also use management software to dynamically manage the production of numerical control equipment on the server or LAN, query the number of daily processing, number of qualified products, and waste products of the effective startup time of the numerical control equipment, and establish the efficiency files and monitoring of the CNC machine tools. The implementation of the production plan and the implementation of a new production plan schedule.
From the point of view of development, NC machining will inevitably gradually replace traditional machining methods within a certain range. The development of computer technology and machining technology will make greater progress in the field of NC machining, but we are applying it to CNC machine tools. Compared with developed countries, there is still a gap in management, as long as we continue to draw on foreign advanced experience in the application of CNC machine tools, continue to explore and summarize. We will certainly achieve greater economic benefits in the field of numerical control processing.
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