System preventing welding and installing errors of automobile part and using method of system

Abstract

The invention discloses a system preventing welding and installing errors of an automobile part and a using method of the system. The system comprises a positioning clamp and further comprises a controller; positions, where a first workpiece and a second workpiece are clamped, on the positioning clamp are correspondingly provided with a first sensor and a second sensor; and the first sensor and the second sensor are both connected with the controller. The method includes the following steps that firstly, the first workpiece is manually clamped, and if clamping is in place at the moment, the first sensor can feed back a signal to the controller; secondly, the second workpiece is manually clamped, and if clamping is in place at the moment, the second sensor can feed back a signal to the controller; thirdly, a robot is started for welding; and fourthly, the workpieces are manually discharged. The system can effectively solve the missing installation and mistaken installation problems of the part, the manufacturing cost and the design difficulty of the positioning clamp are greatly reduced, and the design period is remarkably shortened; work space for a welding gun is increased, and the work takt can be accelerated; the requirement for operation of workers is effectively reduced; and inspection of the production quality of products becomes easier.

Description

technical field [0001] The invention relates to the field of production and processing of auto parts, in particular to a system for preventing errors in the welding and assembly of auto parts and its application method. Background technique [0002] At present, in order to reduce production investment, many automobile OEMs disassemble the body-in-white into sub-assemblies and subcontract them to parts manufacturers for production. The parts suppliers are responsible for developing a series of production equipment such as molds, fixtures, and inspection tools. The quality requirements of the main engine factory for the solder joints on the welding have been improving. Therefore, in order to ensure the quality and consistency of the solder joints, many component suppliers try to use robot welding solutions when providing sub-assembly parts to the main engine factory. At the same time, in order to reduce production costs, semi-automatic operations are adopted, that is, manual a...

AI Technical Summary

Problems solved by technology

[0007] For the problem of missing installation, the common design solution is to use the detection sensor; for the problem of wrong installation, the common design solution is to make an anti-wrong installation limit block. Since the limit block occupies a certain space, considering the interference with the welding torch and This limit block cannot solve the shortcomings such as wrong assembly sequence. Therefore, for the welding of assembly parts composed of multiple small parts, the cost of the fixture increases and the design difficulty increases. In some places, even if the limit block can be added, it will occupy the welding Therefore, some fixtures have to cancel this function, which can only strengthen the operation management of workers and the inspection of product production quality.

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