Direct drive of linear motor also has some shortcomings and problems. In addition to the difficulty of control (no buffering link and end effect in the middle), there is also a strong magnetic field to cause magnetic interference to the periphery, affecting the life of the rolling guide pair, and at the same time giving chip evacuation, It is difficult to assemble and repair, and the heat is large and the heat dissipation conditions are poor. It is necessary to solve the problems of heat dissipation, magnetic isolation, sufficient thrust, self-locking and weight reduction of moving parts, so that it can be practically applied on the machine tool, and the high cost also affects its promotion and application. At present, these problems have been solved to varying degrees, and more and more adopters have been adopted. AC linear servo motors are also available in induction (asynchronous) and synchronous, synchronous (secondary permanent magnet) due to their high efficiency, high thrust density, and good controllability, despite their magnetic and dustproof requirements. Higher and more difficult to assemble, it has now become the mainstream of linear motors for machine tools. For example, the HVM800 high-speed horizontal machining center produced by Ingersoll Milling Machine Company of the United States adopts permanent magnet synchronous linear servo motor for X, Y and Z axes. The maximum feed speed can reach 76.2m/min and the maximum acceleration is 1.5g. In the field of high-speed and high-precision machine tools, linear motor drive and ball screw drive will coexist for a long time, but the general trend is that the proportion of linear motor drive will become larger and larger, and it is likely to become such a machine tool in the future. The mainstream of the feed drive. Well-known machine tool manufacturers in the world (such as Mazak Corporation, which is famous for developing ball screw drives and Daewoo Corporation of Korea) have introduced linear motor-driven machine tools. There are indications that the application of linear motor drives on high-speed, high-precision machine tools has entered an accelerated period of growth. Previous page Photo Frame,Picture Frame,Bamboo Photo Frame Solar Charger,Fidget Spinner Co., Ltd. , http://www.chsolarcharger.com