Views: 0 Author: Site Editor Publish Time: 2021-11-29 Origin: Site
In modern machinery manufacturing, there are many ways to process mechanical parts. In addition to cutting, there are casting, forging, welding, stamping, extrusion, etc., but generally require parts with high precision and good surface roughness, and finally cutting on a machine tool. Its representative is CNC machining parts.
The traditional lathe is a horizontal lathe, which can process various types of work pieces such as shafts, discs, rings, etc. It is often used to process the inner and outer rotating surfaces, end faces, and various internal and external threads of the work piece. It uses the corresponding tools and accessories. Perform drilling, reaming, tapping, knurling and other processing. Traditional lathes are the most widely used type of lathes, accounting for about 65% of the total number of lathes. Because its main shaft is horizontal, it is called a horizontal lathe.
CNC machine tool is the abbreviation of Computer numeric control machine tools, which is an automated machine tool equipped with a program control system. The control system can perform logic processing on the program with control codes or other symbolic instructions, decode them, express them with codes, and input them into the numerical control device through the information carrier. After arithmetic processing, the numerical control device sends out various control signals to control the action of the machine tool, and automatically processes parts according to the shape and size required by the drawing.
Traditional machine tools are usually composed of a bracket, a speed change mechanism, a feed mechanism, a head stock, a tool post, a lubricating cooling system, etc., while a CNC machine tool is developed on the basis of a traditional machine tool. The process and structure of the two are similar, but the CNC machine tools are mainly produced through programs, with little or no human intervention in the processing process.
Compared with traditional machine tools, CNC machine tools have the following characteristics.
1. Highly flexible
2. High processing accuracy
3. The processing quality is stable and reliable
4. High productivity
5. Improve working conditions
6. Utilize production management modernization
The CNC machining parts on the CNC machine tool mainly rely on the machining program, without changing the mold, and without frequent re-adjustment of the machine tool. Therefore, CNC machine tools are suitable for the production of single-piece, small-batch products and the development of new products, thereby shortening the production preparation cycle and saving a lot of process equipment costs.
The machining accuracy of CNC machine tools can generally reach 0.05-0.1mm. CNC machine tools are controlled in the form of digital signals. Therefore, the positioning accuracy of CNC machine tools is relatively high.
Processing the same batch of parts, on the same machine, under the same processing conditions, using the same tools and processing procedures, the CNC processed parts have good consistency and stable quality.
CNC machine tools can effectively reduce the processing time and auxiliary time of the parts. CNC machine tools are entering the era of high-speed machining. The rapid movement and positioning of the moving parts of CNC machine tools and high-speed cutting greatly increase productivity.
After the CNC machine tool is adjusted before processing, enter the program and start it, and the machine tool can automatically continue processing until the end of the processing. What the operator has to do is program input, editing, parts loading and unloading, tool preparation, processing status observation, and part inspection.
The processing of CNC machine tools can accurately estimate the processing time in advance, can be standardized and modernized, and it is easy to realize the standardization of processing information.
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