A CNC machine tool is an automated machine tool equipped with a program control system, which can make the machine tool move and process parts according to the programmed program. It integrates the latest technologies of machinery, automation, computer, measurement, microelectronics, etc., and uses a variety of sensors. cnc machine manufacturer，The sensors used on CNC machine tools mainly include photoelectric encoders, linear gratings, proximity switches, temperature sensors, Hall sensors, and current Sensors, voltage sensors, pressure sensors, liquid level sensors, resolvers, induction synchronizers, speed sensors, etc., are mainly used to detect position, linear and angular displacement, speed, pressure, temperature, etc.
1. The requirements of CNC machine tools for sensors
1) High reliability and strong anti-interference;
2) Meet the requirements of accuracy and speed;
3) Easy to use and maintain, suitable for machine tool operating environment;
4) Low cost.
Different types of CNC machine tools have different requirements for sensors. Generally speaking, large-scale machine tools require high speed response, and medium-sized and high-precision CNC machine tools require precision.
Application of inductosyn
The induction synchronizer is made using the principle that the mutual inductance of two planar windings varies with different positions. Its function is to convert the angular or linear displacement into the phase or amplitude of the induced electromotive force, which can be used to measure the linear or angular displacement. According to its structure, it can be divided into linear type and rotary type. The linear induction synchronizer consists of two parts: fixed length and sliding ruler. The fixed length is installed on the machine bed, and the sliding ruler is installed on the moving parts and moves with the worktable; the stator of the rotary induction synchronizer is a fixed disc, and the rotor For rotating discs. Induction synchronizer has the advantages of high accuracy and resolution, strong anti-interference ability, long service life,simple maintenance, long-distance displacement measurement, good manufacturability, and low cost. Rotary induction synchronizers are widely used in the turntables of machine tools and instruments and various rotary servo control systems.
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