Programmable pneumatic servo motor device and control system

Abstract

The invention discloses a device and a control system of a programmable pneumatic servomotor. The device comprises a pneumatic servomotor and a pneumatic servomotor driver and is capable of achieving two-way communication through communication units. The pneumatic servomotor comprises a pneumatic motor, a brake module and a sensing module, wherein the brake module is often in a closed state and is opened or closed according to commands of the pneumatic servomotor driver; the pneumatic servomotor driver comprises a control module, an actuation module and a communication module; the pneumatic servomotor driver is used for continuously receiving torsion signals, rotation rate signals and angle signals output by the sensing module after starting the pneumatic servomotor; the actuation module is used for driving the pneumatic servomotor to do actions such as emergency stop, forward and backward steering switch, acceleration and deceleration, angle location, inching and torsion control and the like, so that the pneumatic motor has functions and characteristics of the electric servomotor without the need of an encoder.

Description

technical field [0001] The present invention provides a device and control system of a programmable pneumatic servo motor, especially an electric servo motor, which can perform emergency stop, forward and reverse switching, acceleration and deceleration, angle positioning and torque control without an encoder. Controlled air motor. Background technique [0002] At present, the torque, speed and angle control of electric tools or equipment mainly use electric servo motors or brushless motors. The torque, speed and angle signals are mainly detected by encoders and fed back to the inside of the electric servo motor driver for signal processing. After the analysis, the required control equations are written through the mathematical program to achieve the control of torque, speed, angle, etc. However, there are no servo-like air motors in the air tool industry. [0003] In addition, the selection of general air motors is mainly based on the consideration of the operating enviro...

AI Technical Summary

Problems solved by technology

[0004] However, the disadvantages of air motors are: 1. The gas is compressible, high friction, easy to leak, and non-linear so that it is difficult to control; The air motor cannot be stopped immediately, so its movement cannot be precisely controlled; 3. The speed of the air motor is extremely high, at least 6000RPM or even more than 10,000 revolutions per minute, so it is impossible to use an encoder for control

At present, all air motors are difficult to control the speed, rotation angle, and torque, and can only do simple forward and reverse switching actions

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