Spraying robots often adopt a joint structure with 5 or 6 degrees of freedom. The arms have a large movement space and can perform complex trajectory movements. Their wrists generally have 2-3 degrees of freedom and can move flexibly. The wrist of more advanced spray painting robots adopts a flexible wrist, which can bend and rotate in various directions. Its movement is similar to that of a human wrist, and it can easily extend into the interior of the workpiece through smaller holes to spray the inner surface.
Spray robots, also known as spray robots, are industrial robots that can perform automatic spray painting or spray other coatings. They were invented in 1969 by the Norwegian company Trallfa (later merged into ABB Group). The spray painting robot mainly consists of the robot body, computer, and corresponding control system. The hydraulic driven spray painting robot also includes hydraulic oil sources, such as oil pumps, oil tanks, and motors.
Spraying robots often adopt a joint structure with 5 or 6 degrees of freedom, and their arms have large motion space and can perform complex trajectory movements. Their wrists generally have 2-3 degrees of freedom and can move flexibly. The wrist of more advanced spray painting robots adopts a flexible wrist, which can bend and rotate in various directions. Its movement is similar to that of a human wrist, and it can easily extend into the interior of the workpiece through smaller holes to spray the inner surface. Spray painting robots are generally driven by hydraulic pressure and have characteristics such as fast action speed and good explosion-proof performance. They can be taught by hand holding or point position indication. Spray painting robots are widely used in production departments such as automobiles, instruments, electrical appliances, and enamel.
The main advantages of spraying robots are: (1) large flexibility and wide working range; (2) Improve spraying quality and material utilization rate; (3) Easy to operate and maintain. Can be programmed offline, greatly reducing on-site debugging time; (4) High equipment utilization rate. The utilization rate of spraying robots can reach 90% -95%.
Types and characteristics of spraying robots:
1. Aerated spraying robot
Aerated spraying robots, also known as low-pressure aerated spraying, rely on low-pressure air to form atomized airflow on the surface of the object (wall or wooden surface) after the paint is sprayed out of the gun. Aerated spraying has no brush marks compared to hand brushing, and the plane is relatively uniform, with short working hours per unit, which can effectively shorten the working period. However, there is splashing during air spraying, resulting in paint waste. When viewed at close range, extremely fine particles can be seen. Generally, air spraying uses air compressors commonly used in the decoration industry, which are relatively versatile and have low investment costs. There are also specialized machinery such as suction type air spraying machines and self dropping type air spraying machines available on the market.
2. Airless spraying robot
Airless spraying robots can be used for the construction of high viscosity paint with clear edges, and can even be used for some spraying projects with boundary requirements. Depending on the type of machinery, it can be divided into various types such as pneumatic airless spraying machines, electric airless spraying machines, internal combustion airless spraying machines, automatic spraying machines, etc. Also, it should be noted that if spraying treatment is carried out on metal surfaces, it is best to choose metal paint (enamel type).
