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Intelligent control method in robot spot welding

A technology of intelligent control and robotics, which is applied in the direction of manufacturing tools, welding equipment, auxiliary welding equipment, etc., can solve the problems of failure to detect spot welding quality, low equipment utilization, and heavy workload, so as to improve enterprise efficiency and Competitiveness, reducing labor waste, and improving product quality

Active Publication Date: 2017-01-04
华域汽车车身零件(沈阳)有限公司
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Problems solved by technology

Some parts of the robot welding production line need to be loaded and unloaded manually, and some parts need to be automatically transported by robots. If the workload of the manual loading and unloading stations is unreasonable, the possible result may be that some workers cannot load and unload the parts in time, resulting in The utilization rate of equipment is low, some workers have a heavy workload, and some workers are idle (waste of labor costs)
[0003] In addition, in order to avoid welding unqualified parts into the warehouse during product production, quality inspection personnel were mainly relied on to regularly check whether the welding quality of off-line products is qualified. Generally, it is required to check once every hour. If the spot welding of the current parts is found to be unqualified during the inspection, It is necessary to check whether the spot welding of all the parts produced in the last hour is qualified, until it is confirmed that no unqualified parts are put into the warehouse. Inventory product inspection work, if the parts with quality problems are mistakenly assembled into a complete vehicle, it will bring great economic losses

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Embodiment Construction

[0034] The present invention will be further described below according to the accompanying drawings.

[0035] Such as figure 1 As shown, the robot is bidirectionally connected to the PLC, and the PLC is bidirectionally connected to the upper computer and the welding controller; the output end of the upper computer is connected to the display screen; the input end of the welding controller is connected to the output end of the current sensor; There are 2 workstations of the robot, and the operation buttons of the robot are provided on the workstations; the PLC is provided with a manual load rate module and a spot welding quality monitoring module.

[0036] Such as figure 2 As shown, the workflow of the artificial load rate module is as follows:

[0037] (1) The system starts to work;

[0038] (2) The welding work of station tooling 1 and station tooling 2 of the robot is completed;

[0039] (3) The manual operation time of station tooling 1 and station tooling 2 starts cou...

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Abstract

The invention relates to the technical field of robot welding production lines, in particular to an intelligent control method in robot spot welding. The intelligent control method in robot spot welding is characterized in that a robot is in two-way connection with a PLC which is in two-way connection with an upper computer and a welding controller; the output end of the upper computer is connected with a display screen, and the input end of the welding controller is connected with the output end of a current sensor; the robot is provided with two station tools, and operating buttons of the robot are arranged on the station tools; the PLC is internally provided with an artificial load rate module and a spot welding quality monitoring module. Compared with the prior art, the artificial workload is scientifically calculated and arranged, scientificity of working intensity of workers is guaranteed, labor waste is reduced, the labor can meet the yield requirement of the production line, and enterprise benefit and competitiveness are increased. Quality problems are disposed in time once the quality problems occur, and subsequent quality problems are reduced.

Description

technical field [0001] The invention relates to the technical field of robot welding production lines, in particular to an intelligent control method in robot spot welding. Background technique [0002] Automobile body-in-white is mainly produced by robot welding system, which is a complex system mainly composed of robot, tooling, welding controller, PLC, upper computer software, display screen and so on. Some parts of the robot welding production line need to be loaded and unloaded manually, and some parts need to be automatically transported by robots. If the workload of the manual loading and unloading stations is unreasonable, the possible result may be that some workers cannot load and unload the parts in time, resulting in The utilization rate of equipment is low, some workers have a heavy workload, and some workers are idle (waste of labor costs). [0003] In addition, in order to avoid welding unqualified parts into the warehouse during product production, quality i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00
CPCB23K37/00
Inventor 李毅周源张青亮张国峰
Owner 华域汽车车身零件(沈阳)有限公司
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