What are the characteristics of CNC machine tools and traditional machine tools?

The operation and monitoring of CNC machine tools are completed in this CNC unit, which is the brain of CNC machine tools. Compared with ordinary machine tools, CNC machine tools have the following characteristics:

1, which has strong adaptability to processing objects, adapts to the characteristics of single-piece production of molds and other products, and provides suitable processing methods for mold manufacturing;

2. High processing precision and stable processing quality;

3, multi-coordinate linkage can be carried out to process parts with complex shapes;

4, processing parts change, generally only need to change the numerical control program, can save production preparation time;

5. The machine tool itself has high precision and rigidity, and can choose favorable processing dosage and high productivity (generally 3~5 times that of ordinary machine tools);

6. The machine tool is highly automated, which can reduce the labor intensity;

7, conducive to the modernization of production management. Numerical control machine tools use digital information and standard codes to process and transmit information, and adopt computer control mode, which lays the foundation for the integration of computer-aided design, manufacturing and management.

8. Higher quality requirements for operators and higher technical requirements for maintenance personnel;

9. High reliability. Compared with traditional machine tools, CNC machine tools have the following characteristics. 1. Machining parts on a highly flexible CNC machine tool mainly depends on the machining program. Unlike ordinary machine tools, there is no need to manufacture and replace many molds and fixtures, and there is no need to readjust the machine tools frequently. Therefore, CNC machine tools are suitable for frequent replacement of machined parts, that is, for the production of single small batch products and the development of new products, thus shortening the production preparation cycle and saving a lot of process equipment costs. 2. High machining accuracy The machining accuracy of CNC machine tools can generally reach 0.05-0. 1 mm, and the CNC machine tools are controlled in the form of digital signals. Every time the numerical control device outputs a pulse signal, the moving parts of the machine tool move by a pulse equivalent (generally 0.05-0.1mm), and the average error of the reverse clearance and pitch of the machine tool feed transmission chain can be compensated by the rows of the numerical control machine tool. Therefore, the positioning accuracy of CNC machine tools is compared. 3. The processing quality is stable, and the same batch of parts can be processed reliably. On the same machine tool, under the same processing conditions, using the same tools and processing procedures, the tool paths are exactly the same, the parts are consistent and the quality is stable. 4, high productivity CNC machine tools can effectively reduce the processing time and auxiliary time of parts, CNC machine tools have a wide range of spindle speed of sound and feed, allowing the machine tool to carry out powerful cutting with large cutting volume. CNC machine tools are entering the era of high-speed machining. The rapid movement and positioning of moving parts of CNC machine tools and high-speed cutting greatly improve productivity. In addition, it can also be used in conjunction with the tool library of machining center to realize continuous machining of multiple processes on one machine tool, which reduces the turnaround time between semi-finished processes and improves productivity. 5, improve the working conditions of CNC machine tools to adjust before processing, input the program and start, the machine tool can automatically continuous processing until the end of processing. What operators have to do is to input and edit programs, assemble and disassemble parts, prepare tools, observe the machining state, check parts, etc. The labor intensity is greatly reduced, and the work of machine tool operators tends to be intelligent. In addition, machine tools are generally combined, clean and safe. 6. Using modern CNC machine tools for production management can accurately estimate the processing time in advance, and the tools and fixtures used can be standardized, the management is modern, and it is easy to realize the standardization of processing information. It has been organically combined with computer-aided design and manufacturing (CAD/CAM), which is the basis of modern integrated manufacturing technology.