The development of manufacturing market demands that 3-axis machining technology is never enough. As a highly automated intelligent processing equipment, 5-axis machining center is often used in high-end manufacturing. Five axis machining center is suitable for machining airframe parts of free-form surface, turbine parts of aircraft and ships and impeller. We can find that all the workpieces suitable for five axis machining center have the characteristics of high degree of curved surface and difficult to be processed and formed by one-time clamping. Therefore, the five axis machine tool can process the different sides of the workpieces without changing the position of the workpieces on the machine tool, greatly improving the processing efficiency of the prismatic parts. The five axis machining center has three moving axes x, y, Z and any two rotating axes. Compared with the traditional three axis machining center, the five axis linkage technology of the five axis machining center can locate and operate on five degrees of freedom when machining the workpiece with complex geometry.
Many friends have a mistake in understanding five axis machining center. They think that five axis machining center is to add two rotating shafts on the basis of three axis machining center. The two rotating axes fix the cutting tool in an inclined position, and then the feeding axes x, y, Z move and process. In fact, the fourth axis and the fifth axis are used to determine the direction of the tool in a fixed position, rather than continuous operation in the process of machining. Therefore, this is not a real five axis linkage technology. 3 + 2 axis machining center can meet the processing operations that ordinary machining centers cannot complete, but this is not a real five axis machining center.
The real five axis machining center has the function of tool point following, which can ensure that the cutting point of the efficient tool contacts with the surface of the part without changing any parameters, so as to avoid the cutting pit. In the whole path movement process, the direction of the tool can be optimized, and the straight-line movement of the tool can be carried out at the same time. In this way, the best cutting state can be maintained in the whole path. Five axis machining center is also very important in tool application and machining optimization. At present, five axis machining center is widely used in machining different surfaces, impellers, boxes, gears and complex cavities. It plays an important role in aerospace, military research, precision equipment, automotive equipment, high-precision medical equipment and other fields of a country.
Curved surface products are not new to modern life, ranging from beautiful shapes of cars and yachts to beautiful shells of mobile phones and computer mice. Curved surface products can be seen everywhere, and patterns and types are increasingly updated. The production process of curved surface parts is inseparable from CNC machine tools. In the manufacture of curved surface products, the mould with curved surface shape should be processed by CNC machine first, and then the final products should be copied by the mould in batches. Therefore, CNC machine tool has become the most important machine equipment in modern industrial production.
However, the production power and processing quality of CNC machine tools in machining curved parts are not satisfactory, because the CNC machine tools must use spherical milling cutter to prevent the cutter from over cutting (that is, the cutter scrapes off the information of the workpiece that should not be cut and destroys the shape of the workpiece). The smooth surface of the spherical milling cutter is easy to adapt to the disordered modeling of curved parts, and will not interfere with the surface of the workpiece. However, it seriously hinders the normal production power of CNC machine tools and reduces the processing quality of the products. For a long time, experts and manufacturers at home and abroad have been studying ways to replace the spherical milling cutter and improve the output power of CNC machine tools. The end milling cutter can greatly improve the output power of CNC machining curved surface products, and the machining quality of the part surface will also be fundamentally improved. However, the flat bottom of the end milling cutter is not easy to adapt to the disordered shape of curved parts, which often leads to the over cutting problem of the cutter and the scrap of workpiece products. Therefore, in the actual production, the end milling cutter has not been used in the processing and manufacturing of curved surface parts; and before the five axis cutting problem can not be completely solved, the end milling cutter can not be used in the processing of curved surface parts at all.
The international technical problem of cutter over cutting when the efficient five axis milling cutter is used to cut curved surface parts has been solved by Dr. Wang Yin, the creator of this project, and an effective method of rapid cutting curved surface parts with end milling cutter has been established. Thus, the end milling cutter can replace the spherical milling cutter and be used in the machining of curved surface parts. The application of the advanced technology of surface rapid cutting will fundamentally improve the disadvantages of CNC machine tools, such as high working hours, poor processing quality, long manufacturing cycle, etc., and give full play to the functional advantages of CNC machine tools. This project is based on the use of surface rapid cutting skills, to establish a manufacturing enterprise of incoming material processing type, to provide surface parts rapid processing services for the product manufacturing profession with the largest use of surface parts such as molds. With our high-power, high-quality service to win the market. We will also try our best to work with all relevant parts in China to develop the professional skill standard of using end milling cutter instead of spherical milling cutter for machining profession as soon as possible and face it to the international market.
The application field of surface rapid cutting technology is very wide, involving all modern manufacturing professions, such as aerospace, aviation industry, modern medical treatment, instrument manufacturing, car and ship manufacturing, electronics, electrical appliances, power generation, plastics, rubber industry, etc.; especially, the mold called "industrial mother" cannot be made without advanced surface parts CNC Numerical control machine