Robot spraying system and control method thereof

Abstract

The invention discloses a robot spraying system. The system is provided with a chain type conveying line for conveying a to-be-sprayed workpiece. The chain type conveying line conveys the workpiece tosequentially pass through a vision scanning area and a spraying area. The vision scanning area is provided with a vision sensor used for conducting three-dimensional scanning on the workpiece. The spraying area is provided with an industrial robot. A spray gun is fixed to the end portion of the industrial robot and connected with spraying equipment. The vision sensor outputs signals to an upper computer. The upper computer outputs spraying track signals to a robot controller. The robot controller drives the industrial robot to execute the spraying track. The upper computer outputs the controlsignals to a PLC. The PLC drives the chain type conveying line and the spraying equipment to work. The robot spraying system has the beneficial effects that automatic complex hook face spraying trackplanning can be achieved, and the spraying precision is improved; and the offline programming technology is utilized, the demonstration workload of the robot is reduced to the maximum degree, and productivity can be rapidly achieved.

Description

technical field [0001] The invention relates to the field of robot automatic spraying, in particular to a robot intelligent off-line spraying system which integrates vision guidance technology and can complete complex curve or curved surface spraying tasks. And it can be extended to robot welding, assembly, handling, fault detection and other fields. Background technique [0002] Spraying is one of the largest application fields of robots in industry, and is widely used in the coating production lines of automobiles, electrical appliances and furniture at home and abroad. [0003] For large-scale enterprises, due to their strong strength, long product production cycle, and high profits, these large-scale enterprises can bear higher initial investment costs, such as designing special tooling and fixtures, and employing a large number of experienced technical staff. Time-consuming and laborious production line construction period. However, for a large number of small and med...

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Problems solved by technology

[0009] (1) The efficiency of manual spraying is low, the labor intensity is high, the construction quality cannot be guaranteed, and for the construction personnel, working in the spraying environment for a long time will affect their health;

[0010] (2) The teaching process of the robot program is complex, time-consuming, and has high requirements for the skills of the operator, and it needs to be taught again for different workpieces or different positions;

[0011] (3) Both robot teaching and automatic spraying equipment need to be equipped with special positioning fixtures for different workpieces, which increases production costs. When updating products, the tooling needs to be redesigned

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