Application of Linear Motor Platform in CNC Machine Tool
time£º2018/8/24 click£º4921
Application of linear motor platform in numerical control machine tool. Xiaobian's husband's University major in numerical control was later transferred to do quality inspection. He still remembered that he had just graduated from the internship. Ten or ten hours a day, his clothes were sweaty and wet, and he was not a human being. Now with the continuous development of science and technology, The CNC machine tools driven by the linear motor platform are widely used in manufacturing, leaving many people out of the bitter sea and relatively easy.
For CNC machine tool feed is mainly an AC linear motor platform, and is divided into two categories: synchronous and induction. With the emergence of rare earth neodymium iron boron(NdFeB) permanent magnetic materials and the improvement of cost performance, the permanent magnet synchronous linear motor platform has become the mainstream. Taking the application of this linear motor platform on high speed and high precision CNC machine tool as an example, the key problems to overcome are analyzed.
First, thermal insulation and heat dissipation problems When the permanent magnet linear motor platform is running, the coil will heat up due to copper and iron damage, bringing about some negative effects. Therefore, in particular, the flat-shaped large-thrust linear motor platform must be cooled, requiring that the magnetic steel temperature does not exceed 70 ¡ãC and the coil temperature does not exceed 130 ¡ãC. For dynamic coil type and general dynamic magnetic linear motor platform, the coil part cooling can be; However, under the requirement of Super precision, the dynamic magnetic linear motor platform should adopt a double-layer water cooling method and be equipped with a temperature sensor monitoring system.
Second, the linear motor platform guide rails require load, adapt to high-speed movement and ensure accuracy, select guide rails to consider stroke size, mechanical characteristics, precision and speed tolerance. In general, rolling(ball or ball) linear guide rails are used. When installing, they must be parallel to each other. For super-precision requirements, air pressure guide rails can be used.
Kunshan Tongmao Electronics Co. Ltd. is a set of linear motor research, development, linear motor, sound loop motor, linear motor platform manufacturing and sales as one of the manufacturers.
This article originated from the original company of Kunshan Tongmao Electronics Co., Ltd.(www.tmmotion.com). Please indicate the source.
Linear motor