Computer numerical control: computer numerical control, referred to as CNC, generally known as CNC abroad, rarely use the concept of NC. Numerical control machine tools refers to the machine tools equipped with computer numerical control system, referred to as CNC machine tools. We have seen CNC machines, but we don’t understand them very well. Let’s take a look at CNC precision parts processing machine tools.
It usually controls the position, angle, speed and other mechanical quantities and the switch value related to the mechanical energy flow direction. The generation of numerical control of computer gong machining depends on the emergence of data carrier and binary data operation. In 1908, the perforated sheet metal interchangeable data carrier came out; at the end of the 19th century, the paper-based control system with auxiliary functions was invented; in 1938, Shannon carried out fast data calculation and transmission at MIT, laying the foundation for modern computers, including computer digital control systems. The numerical control technology of high-speed computer gong machining is developed in close combination with machine tool control. In 1952, the first CNC machine tool came out, which became a great pioneering work in the history of world machinery industry.
characteristic
Compared with ordinary machine tools, CNC precision parts machining machine tools have the following characteristics:
High machining precision and stable machining quality;
It can carry out multi coordinate linkage and process parts with complex shapes;
When the machining parts are changed, only the NC program needs to be changed, which can save the production preparation time;
The machine tool itself has high precision and rigidity. It can choose favorable processing amount and high productivity (generally 3 ~ 5 times of ordinary machine tool);
High degree of automation of machine tools can reduce labor intensity;
Mass production, easy control of product quality;
The requirements for the professional quality of operators are low, and the technical requirements for maintenance personnel are high.
In CNC precision parts processing, the staff should have a very familiar understanding of the machine tool. Mold processing is a kind of artificial intelligence, which is completed by computer control machine tool. The most complex part of the computer gong lies in the control system. The computer processing the computer sends various instructions to control the three axis servo motors of the machine to cooperate with each other according to the established route, so as to process various complex processes and ensure high machining accuracy.
The main component of the body part of the computer gong processing is casting, which is also a major reason affecting the accuracy of the computer gong machine tool. It can even be said that the quality of casting determines the grade of machine tool and the stability of future use. What are the requirements for casting manufacturing, that is, no deformation and enough rigidity. CNC machining does not deformation refers to the actual processing process after leaving the factory, the accuracy of the machine tool remains good, deformation will affect the accuracy. The machining rigidity of mechanical parts is enough for the machine tool to meet the needs of heavy chip processing.
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