An automatic machine tool is an automatic 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 new technologies such as machinery, automation, computer, measurement, and microelectronics, and uses a variety of sensors. The sensors used on CNC machine tools are mainly photoelectric encoders, linear encoders, proximity switches, temperature sensors, Hall sensors, 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.
Sensor requirements for automated machine tools
- 1) High reliability and strong anti-interference performance;
- 2) meet the requirements of accuracy and speed;
- 3) Convenient to use and maintain, suitable for machine tool operating environment;
- 4) Low cost.
Different types of automated machine tools have different requirements for sensors. Generally speaking, large machine tools require high speed response, and medium and high precision CNC machine tools mainly require precision.
Application of automatic machine tool induction synchronizer
Induction synchronizer is made by using the principle that the mutual inductance of two planar windings changes 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 linear or angular displacement. According to its structure, it can be divided into two types: linear and rotary. The linear induction synchronizer is composed of two parts: a fixed length and a slide length. The fixed length is installed on the machine bed. The slide length is installed on the moving part and moves with the table. The stator of the rotating induction synchronizer is a fixed disc and a rotor. For rotating discs. The induction synchronizer has the advantages of high accuracy and resolution, strong anti-interference ability, long service life, simple maintenance, long-distance displacement measurement, good workmanship, and low cost. Rotary induction synchronizers are widely used in turntables of machine tools and instruments as well as various rotary servo control systems.