Flexible tooling fixture and welding method for laser welding of vehicle lights

Abstract

The invention discloses a flexible tool clamp and method for conducting laser welding on an automobile lamp and belongs to the technical field of welding design. By means of a base plate having the locating function, great shift generated when the tool clamp is replaced is avoided, and the initial point checking time in the subsequent welding process is shortened; furthermore, whether a to-be-welded component exists on each station or not and whether the to-be-welded components are put in right molds or not are detected through sensors before the clamping action is started, equipment damage caused due to welding equipment operates in the no-load condition is prevented, and the problem that the to-be-welded components or the clamp is damaged due to the fact that the clamping action is started when the to-be-welded components are not put correctly is avoided; furthermore, pressing heads on each pressing block are symmetrically distributed in the left-right direction, and the pressure isuniformly applied when tightly-pressing is conducted downwards; limiting stop blocks are arranged at the two ends of liner guide rails correspondingly, and the positional precision of the clamp is guaranteed; and furthermore, the clamp is provided with the two stations, meanwhile, locating and clamping of the two to-be-welded components are completed at the same time, and welding efficiency is obviously improved compared with a single station.

Description

technical field [0001] The invention relates to a flexible fixture and a welding method for laser welding of vehicle lamps, belonging to the technical field of welding design. Background technique [0002] Welding tooling is the general term for fixtures, mechanical devices or equipment that cooperate and assist in the process of welding structures. Among them, fixtures are used to accurately position and reliably clamp weldments to facilitate the assembly and welding of weldments and ensure Process equipment required for structural accuracy of weldments. [0003] In the process of modern welding production, the use of fixtures that are compatible with the product structure plays a very important role in improving the quality and efficiency of products, reducing the labor intensity of workers, and accelerating the mechanization and automation of welding production. In welding production, in fact, the man-hours required for welding are relatively small, and most of the time ...

AI Technical Summary

Problems solved by technology

[0004] When the existing laser welding tooling is welding different types of parts to be welded, it often takes a lot of time to proofread the initial welding points of the parts. In addition, due to the small diameter of the laser welding spot, the positioning accuracy of the parts to be welded is relatively high , and the laser welding fixtures commonly used in the past are directly fixed on the workbench through the pressure plate. When replacing different types of welding parts, the corresponding fixtures need to be replaced, and the two fixed positions before and after the replacement are likely to cause large gaps. Offset, so the initial welding point needs to be re-calibrated after the parts are clamped, which greatly increases the auxiliary process time before welding

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