Description of robot painting in cooperation with water curtain cabinet: **I. Introduction** The combination of robot painting and water curtain cabinet is a modern and efficient painting method. It combines the precision and repeatability of robots with the effective air purification function of water curtain cabinets to achieve high-quality painting results while ensuring environmental protection. **II. Components and Working Principle** 1. **Robot Painting System**:    - The robot painting system consists of a robotic arm, paint spray gun, and control system. The robotic arm can move precisely in three dimensions, accurately positioning the paint spray gun to ensure uniform coating on the workpiece.    - The paint spray gun is designed to atomize the paint into fine particles, which are then sprayed onto the workpiece. The control system can adjust the spraying parameters such as spray pressure, flow rate, and spraying distance to achieve the best painting effect. 2. **Water Curtain Cabinet**:    - The water curtain cabinet is a device used to purify the air in the painting area. It consists of a water tank, water pump, water curtain, and exhaust fan.    - The water pump pumps water from the water tank to the top of the water curtain cabinet, forming a continuous water curtain. The exhaust fan draws the air containing paint mist into the water curtain cabinet. As the air passes through the water curtain, the paint mist is captured by the water droplets and falls into the water tank, while the purified air is discharged. **III. Advantages** 1. **High Painting Quality**: The robot painting system can ensure accurate spraying and uniform coating, resulting in high-quality painting results. 2. **Efficient Production**: Robots can work continuously and at high speed, greatly improving production efficiency. 3. **Environmental Protection**: The water curtain cabinet effectively captures and purifies the paint mist, reducing air pollution and protecting the environment. 4. **Flexibility**: Robots can be programmed to adapt to different workpieces and painting requirements, providing flexibility in production. **IV. Application Fields** This painting method is widely used in various industries such as automotive manufacturing, furniture production, and electronics manufacturing. It is suitable for painting large and complex workpieces, as well as for mass production. In conclusion, the combination of robot painting and water curtain cabinet is an advanced painting technology that offers high painting quality, efficient production, environmental protection, and flexibility. It is an important innovation in the field of modern industrial painting.