End Effector Model – 3D Model SolidWorks

The actuator is an indispensable and important part of the automatic control system. Its function is to receive the control signal sent by the controller, change the size of the controlled medium, and thus maintain the controlled variable at the required value or within a certain range. Actuators can be divided into three categories according to their energy form: pneumatic, hydraulic, and electric. Pneumatic actuators use compressed air as energy. They are characterized by simple structure, reliable and stable operation, large output thrust, convenient maintenance, fireproof and explosion-proof, and low price. Therefore, they are widely used in chemical, papermaking, oil refining and other production processes. They can be easily used with passive instruments. Even when using electric instruments or computer control, pneumatic actuators can still be used as long as the electrical signal is converted into a standard air pressure signal of 20-100kPa through an electric-to-gas converter or an electric-to-gas valve positioner. Electric actuators have convenient energy access and rapid signal transmission, but they have complex structures and poor explosion-proof performance. Hydraulic actuators are basically not used in chemical, oil refining and other production processes. They are characterized by large output thrust.