End-Effector Model SolidWorks

The actuator is an essential part of the automatic control system. Its role is to accept the control signal sent by the controller and change the size of the controlled medium, so as to maintain the controlled variable at the required value or within a certain range. According to its energy form, the actuator can be divided into three categories: pneumatic, hydraulic and electric. Pneumatic actuators use compressed air as energy source, which is characterized by simple structure, reliable and smooth action, large output thrust, easy maintenance, fire and explosion-proof, and low price, so they are widely used in chemical, paper, oil refining and other production processes, and it can be easily used with passive instruments. Even when using electric instruments or computer control, as long as the electric signal is converted into a standard air pressure signal of 20-100kPa by electric-pneumatic converter or electric-pneumatic valve positioner, the pneumatic actuator is still available. The electric actuator has convenient energy access and rapid signal transmission, but complex structure and poor explosion-proof performance. Liquid-actuated actuator is basically not used in chemical and oil refining production processes, it is characterized by a large output thrust.