Numerical control technology is closely combined with machine tool control. In 1952, the first CNC machine tool came out, which became an epoch-making event in the world machinery industry and promoted the development of automation. Now, numerical control technology is also known as CNC (computerized numerical control). At present, it is the technology of using computer to realize digital program control. In this technology, the computer can control the movement track of the equipment and the operation sequence logic of the peripheral equipment according to the control program stored in advance. Because the numerical control device composed of hardware logic circuit is replaced by computer, all kinds of control functions such as storage, processing, operation and logic judgment of input operation instructions can be realized by computer software, and the micro instructions generated by processing are transmitted to the servo driving device to drive the motor or hydraulic actuator to drive the equipment.

The CNC machine tool processes the parts automatically according to the pre programmed processing program. According to the instruction code and program format specified by CNC machine tool, we compile the machining process route, process parameters, tool trajectory, displacement, cutting parameters (spindle revolution, feed rate, back feed, etc.) and auxiliary functions (tool change, spindle forward rotation, reverse rotation, cutting fluid on and off, etc.) of the parts into the machining program sheet, Then the contents of the program list are recorded on the control medium (such as disk, magnetic bubble memory), and then input into the numerical control device of the numerical control machine tool, so as to command the machine tool to process parts. This process of generating instructions from part drawings is called NC programming. The difference between CNC machine tools and ordinary machine tools is that CNC machine tools process parts automatically according to the program, while ordinary machine tools are operated by people. As long as we change the program that controls the action of machine tools, we can achieve the purpose of processing different parts. Therefore, CNC machine tools are especially suitable for processing small quantities of parts with complex shape and high precision requirements. Because CNC machine tools must process parts according to the program, the programmer will input the program into the CNC device to direct the work of the machine tool after compiling the program. The program input is through the control medium.

Some domestic CNC machine tool manufacturers do not pay enough attention to the improvement of the overall process and manufacturing level. The processing means are mainly ordinary machine tools and inefficient cutting tools. The assembly and debugging are completely manual, and the processing quality can not be stabilized and improved under the pressure of the production schedule. In addition, the production management of many domestic CNC machine tool manufacturers still use the original manual account management mode, and the low process level and management efficiency make the enterprises unable to form enough production scale. For example, foreign machine tool manufacturers can load and transfer products every week, while domestic production cycle is too long and difficult to control. Therefore, we should pay attention to strengthen our own technological transformation and management level while introducing technology.

Due to the rapid development of CNC machine tool industry, some enterprises ignore the long-term interests, and do not pay enough attention to improving their comprehensive service level, or even lack a real understanding of service, and only focus on marketing rather than pre-sales and after-sales service. Some enterprises send personnel to the production of CNC machine tools lack of sufficient understanding, will not use or use CNC machine tools, can not guide users to use machine tools; Some of them lack basic understanding of advanced and efficient cutting tools and can not provide better process solutions, so users naturally lack confidence in manufacturers.

The manufacturer's service should start from studying the processing products, processes, production types and quality requirements of users, help users to select equipment, recommend advanced processes and tools, equip professional training personnel and good training environment, help users to maximize the benefits of machine tools and process high-quality final products, so as to gradually get the recognition of users, Improve the market share of domestic CNC machine tools.