Automobile subframe crossbeam positioning and welding device

Abstract

The invention discloses an automobile subframe crossbeam positioning and welding device and belongs to the technical field of tooling equipment. The device comprises a first positioning device, a second positioning device, a third positioning device and a clamping device which are all arranged on a base device. The first positioning device comprises a main pin positioning mechanism and an auxiliary pin positioning mechanism, the main pin positioning mechanism comprises a telescopic pin pushing air cylinder, a telescopic pin air cylinder mounting support, a main positioning pin and a main pin guide block, the telescopic pin air cylinder mounting support is installed on the base device, the telescopic pin pushing air cylinder penetrates through a cavity of the telescopic pin air cylinder mounting support, the main positioning pin is connected with the end of a connecting rod of the telescopic pin pushing air cylinder through a mounting groove R at the end of the main positioning pin, themain pin guide block is fastened to the end face of the telescopic pin air cylinder mounting support, and a positioning block I is further arranged on one side surface of the telescopic pin air cylinder mounting support. According to the automobile subframe crossbeam positioning and welding device, difficult part mounting caused by over-positioning can be prevented, part damage and tool abrasionare prevented, the working efficiency is improved, and the service life is prolonged.

Description

【Technical field】 [0001] The invention relates to the technical field of tooling equipment, in particular to a positioning welding device for a crossbeam of an automobile sub-frame. 【Background technique】 [0002] The sub-frame beam of the automobile is a hollow body welded by two upper and lower thin plate stamping parts. The sub-frame beam has mounting holes connected with the swing arm and shock absorber, so the height of the cavity of the sub-frame beam (ie The space distance between the upper and lower plates) will affect the installation of the swing arm and shock absorber. Usually, when welding, the process hole of the lower plate is first aligned with the fixed positioning pin on the tooling, and then the upper plate is inserted at the position of the mounting hole to ensure the height of the beam cavity; but in the actual welding process, due to The plate is deformed by heat, and after the beam of the sub-frame is welded as a whole, the thermal stress deformation c...

AI Technical Summary

Problems solved by technology

Usually, when welding, the process hole of the lower plate is first aligned with the fixed positioning pin on the tooling, and then the upper plate is inserted at the position of the mounting hole to ensure the height of the beam cavity; but in the actual welding process, due to The plate is deformed by heat, and after the beam of the sub-frame is welded as a whole, the thermal stress deformation causes the beam to interfere with the positioning pin on the tooling, making it difficult to manually pick up the piece, which affects work efficiency; due to the thermal deformation of the plate, the plugs inserted in the cavity of the beam Blocks are difficult to remove, affecting work efficiency, and even lead to inaccurate part cavity dimensions, affecting product quality

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