Features of CNC Machine
May. 14, 2021
Features of CNC Machine
Compared with traditional machine tools, CNC machine tools have the following characteristics.
(1) Highly flexible
Processing parts on CNC machine tools depends on the processing sequence. It is different from ordinary machine tools. There is no need to make, many molds and fixtures need to be replaced, and there is no need to frequently adjust the machine tool. Therefore, CNC machine tools are used in places where machining parts are frequently replaced, which is suitable for the consumption of single-piece and small-batch products and the development of new products, thereby prolonging the production preparation cycle and saving a small amount of process equipment costs.
(2) High processing accuracy
The single processing accuracy of CNC machine tools can reach 0.05-0.1MM. The CNC machine tool is controlled according to the digital signal situation. The numerical control device outputs a pulse signal each time, the moving parts of the machine tool move one pulse equivalent (0.001MM respectively), and the machine tool moves forward. The uniform error of the backlash and pitch of the transmission chain can be compensated by CNC. Therefore, the positioning accuracy of CNC machine tools is relatively high.
(3) The processing quality is stable and reliable
To process the same batch of parts, on the same machine, under the same processing conditions, using the same tools and processing sequence, the cutting paths of the tools are complete and the same, the parts have good consistency, and the quality is stable.
(4) High consumption rate
CNC machine tools can effectively increase the processing time and auxiliary time of the parts. The high sound speed and feed speed of the spindle of the CNC machine tool enable the machine tool to perform powerful cutting with a large amount of cutting. CNC machine tools are currently entering a period of high-speed machining. The rapid motion positioning and high-speed cutting of the moving parts of the CNC machine tool greatly increase the consumption rate. In addition, it can be used in conjunction with the tool magazine of the machining center to realize continuous processing of multiple procedures on one machine tool, increasing the turnover time of semi-finished products and increasing the consumption rate.
(5) Improve rest conditions
Before the CNC machine tool processing adjustment, output sequence and start processing, the machine tool can actively continue processing until the processing is completed. The work that the operator has to do is to complete the sequence output, compilation, parts loading and unloading, tool preparation, processing status observation, part testing and other tasks. The rest intensity is greatly reduced, and the rest of the machine tool operator is often an intellectual task. In addition, the machine tools are individually connected, which is clean and safe.
(6) Use consumption governance modernization
The processing of CNC machine tools can accurately predict the future processing time, and the tools and fixtures used can be standardized and modernized. It is easy to realize the standardization of information processing. At present, it has been organically combined with computer-aided design and production (CAD/CAM), which is the basis of modern comprehensive production skills.
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