1. Highly flexible
Machining parts on CNC machine tools mainly depends on the processing program. It is different from ordinary machine tools. It does not need to be manufactured. Many molds and fixtures need to be replaced. It is not necessary to readjust the machine tool frequently. Therefore, the CNC machine tool is suitable for the occasions where the processed parts are frequently changed, that is, suitable for the production of single pieces, small batch products and new product development, thereby shortening the production preparation cycle and saving a lot of process equipment costs.
2. High processing accuracy
The machining accuracy of CNC machine tools is generally 0.05-0.1MM. CNC machine tools are controlled in the form of digital signals. Each time the CNC device outputs a pulse signal, the moving part of the machine tool moves by a pulse equivalent (generally 0.001MM). The average error of the backlash and the screw pitch of the transmission chain can be compensated by the numerical control device. Therefore, the positioning accuracy of the numerical control machine tool is relatively high.
3. Stable and reliable processing quality
Processing the same batch of parts, using the same tool and processing program under the same machining conditions under the same machine tool, the tool trajectory is exactly the same, the consistency of the parts is good, and the quality is stable.
4. High productivity
CNC machine tools can effectively reduce the processing time and auxiliary time of parts. The spindle sound speed of five-axis CNC machining centers and feed ranges of CNC machine tools are large, allowing the machine tools to perform powerful cutting with large cutting amounts. CNC machine tools are entering the era of high-speed machining. The rapid movement and positioning of mobile parts and high-speed cutting of CNC machine tools have greatly improved productivity. In addition, it can be used in conjunction with the tool magazine of a machining center to achieve continuous processing of multiple processes on one machine tool, reducing the turn-around time between processes of semi-finished products and improving productivity.
5. Improve working conditions
Before the CNC machine tool is adjusted, after entering the program and starting, the machine tool can automatically and continuously process until the end of processing. The operator only needs to input, edit, edit, load and unload parts, prepare tools, observe machining status, and inspect parts. The labor intensity is greatly reduced, and the labor of machine tool operators tends to be intelligent. In addition, machine tools are generally integrated, both clean and safe.
6. Modernize production management
The machining of CNC machine tools can accurately estimate the machining time in advance, standardize the used tools and fixtures, modernize management, and easily realize the standardization of machining information. It has been organically combined with computer-aided design and manufacturing (CAD / CAM). It is the foundation of modern integrated manufacturing technology.