Linear motor platform to open up a new era of machine tools to promote the field, with the rapid development of electronic technology, linear motor platform in the field of machine applications ushered in its climax. From the 1996 Chicago Machine Tool Fair IMTS`96, Japan's 18th International Machine Tool Show to the 1999 Paris International EMO Expo and a series of internationally influential exhibitions, which indicates that a new era of linear motor has been opened up arrival.
    The development of high-speed and ultra-high-speed machining to improve production efficiency and improve parts processing quality has now become a major trend in machine tool development. A responsive, high-speed and lightweight drive system, the speed should be increased to 40-50m / min or more, acceleration and deceleration also requires increased to 25-50m / s2, the traditional "rotating motor + roller screw" transmission is obviously not This is determined by its own weakness.
    The linear motor platform has the advantage of direct drive can just make up for the lack of traditional transmission methods, the speed is 30 times the roller screw pair; acceleration is 10 times the roller screw pair, up to 10g, increased stiffness 7 times; In addition, the linear motor platform directly drive the table, so there is no reverse work dead zone; due to the small armature inertia, so the composition of the linear servo system can achieve higher frequency response (such as 100Hz).
    Through the above comparison, in the high-speed and ultra-high-speed precision machining, the linear motor platform has a wide range of applications. At present, to meet the thrust of the machine thrust feed components is mainly AC linear motor platform, from the excitation points, can be divided into permanent magnet (synchronous) and induction (asynchronous) type two. Permanent magnet secondary (stator) is a permanent magnet, when used in the machine tool, the bed must be installed in the machine tool permanent magnet, the lower part of the counter with a three-phase winding power to form a linear motor platform primary Piece). The induction of the same primary and permanent magnet, but its second level is to replace the use of electric grid magnets, the equivalent of the induction rotary motor "cage" along its circumference to start.
    In the fields of high-speed and ultra-high-speed machining, the linear motor platform is widely used in high-speed milling machines, crankshaft lathes, super-precision lathes, grinding machines, laser lathes and the like. Six-axis, three-axis parallel machine tool, through the expansion of a plurality of sliding plunger to control the tool, to achieve high-speed machining of complex profiles.

    With a peak thrust of 2600 N and a continuous thrust of up to 750 N, Tongmao Straight's standard U-shaped linear motor platform delivers up to 0.5UM of positioning accuracy and is compatible with multi-brand motion controllers and actuators. At the same time, with our extensive line-up of linear motor platforms The organization of the design, sample production and production experience, can provide customers with fully meet the high-performance, high quality, low cost, short delivery requirements of customized linear motor platform.

This article originates from Kunshan Tongmao Electronics Co., Ltd. (www.tmmotion.com) original company, please indicate the source.