As the name implies, CNC numerical control machining is a method of computer digital control, which uses digital information to control the movement of machine tools and the processing process. It has a structure of high speed, reliability, multi-function, intelligence and openness. The intelligent all-purpose air energy numerical control device of the development structure is also an important indicator to measure the level of national technological development and comprehensive national strength, and the modernization of information technology, especially in the fields of Air China, biology, medical treatment, and high-tech industries. It is also a manifestation of the level of national strength, so improving the technology of this item is an important way to improve the country's comprehensive national strength and status.
Therefore, in contrast to the traditional mechanical processing and manufacturing industry, not only is the efficiency low, but there are often some uncontrollable factors that make our work far less than expected. The workload is heavy and the requirements for our technicians are also high, so it will There are certain periodicity and work limitations. Therefore, the use of digital NC machining technology is particularly important. It not only has high work efficiency, but also can easily repeat and perform some high-precision, human-eye and unrealizable subtle work.
How to improve the quality of CNC machining workpieces?
1. Before CNC machining, please use a calibrator to check whether the tool is oscillating within the allowable tolerance range. Before processing, the knife head and locking nozzle should be blown clean with an air gun, or wiped with a cloth to install the knife. Accuracy and quality have some impact.
2. The program list of CNC processing files should be normalized, including model, name, program name, processing content, tool size, feed rate, especially the safe length of the tool holder, the reserved margin of each program and the indicator light . knife. Make it clear.
3. The list of CNC machining programs should be consistent with the direction of the reference angle indicated by the mold, and then check the upper 3D drawing, especially the workpiece that has been drilled for water transportation. It is necessary to check whether the level on the 3D drawing and the workpiece are consistent.
4. Before processing, you must understand the content of the CNC machining program. The program must have 2D or 3D textures, and the six-sided data of "X length, Y width, and Z height" must be marked, and the "Z" value must be marked flat. It is convenient for the operator to check whether the data is correct after processing. If there is a tolerance, the tolerance data should be indicated.
5. Reasonable use of CNC processing tools should strictly distinguish the processing of steel and copper light knives, and the remaining amount of light knives should be reasonable, so as to make the smoothness of the workpiece and the service life of the tool possible. better.
6. When clamping, please pay attention to whether the name and model of the CNC machining workpiece are the same as the program list, whether the material size matches, whether the clamping height is high enough, and the number of calipers used.
7. The CNC machining speed should be strictly controlled by the operator. F speed and S spindle speed should be adjusted reasonably. When the F speed is fast, the S spindle should be accelerated. The paper feed speed must be adjusted in different areas. After processing, check the quality without any problem, then you can get off the car and process.
