Industrial Robot Knowledge Lecture 4: Industrial Robot Manipulator (

(2) The wrist of the wrist robot is located at the front end of the arm and is the part that connects the end effector (such as the claw). Structurally, the wrist must be very compact and lightweight to reduce the moment of inertia and heavy moment at the end of the manipulator; it is often made of hard aluminum alloy and often uses a separate section. The drive member (motor) is placed on the rear arm, and in terms of motion, the wrist joint can have three rotations around three mutually perpendicular axes (Fig. 1). But depending on the homework, the degree of freedom of the wrist

Pneumatic Valve

Pneumatic valve is a kind of valve controlled by air pressure, which is widely used in industrial automation control system. Its main applications include the following aspects:

1. Fluid control: pneumatic valve can be used to control the flow and direction of liquid or gas, such as controlling the flow in the pipeline, exhaust gas emission, etc.

2. Pressure control: pneumatic valve can be used to control the pressure of fluid, such as controlling the pressure of compressed air, regulating the pressure in the hydraulic system, etc.

3. Temperature control: pneumatic valve can be used to control the temperature of fluid, such as the temperature of heating or cooling system.

4. Automatic control: pneumatic valve can be linked with sensors, PLC and other equipment to realize automatic control, such as automatic production lines, robots, etc.

5. Safety control: pneumatic valve can be used for safety control, such as controlling emergency stop, preventing overload, etc.

In general, pneumatic valve plays an important role in industrial automation control system, which can improve production efficiency, reduce costs, and ensure safety.

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