Technology Application For CNC

Publish Time : 2023-04-28

         CNC machine tool is an automated machine tool equipped with a program control system, which can operate the machine tool and process parts based on the programmed program. It integrates the latest technologies such as machinery, automation, computer, measurement, microelectronics, and uses various sensors. The sensors used in CNC machine tools mainly include photoelectric encoders, linear gratings, proximity switches, temperature sensors, Hall sensors, current sensors, voltage sensors, pressure sensors, liquid level sensors, rotary transformers, inductosyn, speed sensors, etc., mainly used for detecting position Linear displacement and angular displacement, velocity, pressure, temperature, etc.

1. Requirements for sensors in CNC machine tools

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.

带轮 皮带轮 纺织机传动带轮-4.jpg

   Different types of CNC machine tools also have different requirements for sensors. Generally speaking, large machine tools require high speed response, while medium and high-precision CNC machine tools mainly require accuracy.

2. Application of inductosyn

       Inductosyn is made using the principle that the mutual inductance of two planar windings varies with different positions. Its function is to convert angle or linear displacement into the phase or amplitude of 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 consists of two parts: a fixed length and a 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 workbench; The stator of a rotary inductosyn is a fixed disk, and the rotor is a rotating disk. Inductosyn has advantages such as high accuracy and resolution, strong anti-interference ability, long service life, simple maintenance, long-distance displacement measurement, good processability, and low cost. Rotary inductosyn is widely used in turntables of machine tools and instruments, as well as in various rotary servo control systems.

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