Flexible spot welding tool clamp for axle body

Abstract

The invention relates to the technical field of axle assembly, and discloses a flexible spot welding tool clamp for an axle body. The flexible spot welding tool clamp comprises a workbench, and a positioning and pressing unit, a mounting unit, a centering unit and an angle adjusting mechanism which are arranged on the workbench. The centering unit comprises a rotating motor arranged below the workbench, a rotating shaft fixedly connected to the rotating motor, a chain transmission piece connected to the rotating shaft and a centering rod fixedly connected to the chain transmission piece, and the rotating motor drives the chain transmission piece to drive the centering rod to contract inwards or stretch outwards. The flexible spot welding tool clamp has the following advantages and effects that the mode of automatic centering, clamping, angle adjusting, pressing and automatic spring seat and air cushion block mounting is adopted, the working efficiency in the welding process can be remarkably improved, the centering unit is adopted for centering the axle body, all parts of the axle body are welded after centering, and the mode can greatly improve the welding precision.

Description

technical field [0001] The invention relates to the technical field of vehicle axle assembly, in particular to a flexible spot welding fixture for a vehicle axle body. Background technique [0002] In the field of automobile axle housing mechanical processing technology, in the production process of various domestic or foreign stamped and welded axle housings, the spring plate seat assembly and the axle housing body need to be assembled, and then welded. The assembly process must ensure that the spring plate seat assembly and the axle The distance, angle and angle between the shell bodies are poor, but the generality of the existing assembly equipment is not strong. [0003] The Chinese invention patent with application publication number CN107116332A discloses a spring plate seat assembly and axle body assembly welding fixture and its welding process. It only needs to replace the positioning sleeves of different sizes. For the spring plate seat assembly with different angl...

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Problems solved by technology

[0002]In the field of automobile axle housing machining technology, the spring plate seat assembly and the axle housing body need to be assembled in the production process of various domestic or foreign stamped and welded axle housings. After welding, the assembly process needs to ensure the distance, angle and angle difference between the spring plate seat assembly and the axle housing body. However, the existing assembly equipment is not very versatile.

[0003] The Chinese invention patent whose application publication number is CN107116332A discloses a spring plate seat assembly and axle body assembly welding fixture and its welding process. Versatility, for the same type of axle housing bodies with different lengths and pipe diameters, you only need to replace different sizes of positioning sleeves, and for the same type of spring plate seat assemblies with different angles and distances, you only need to replace different positioning plates, center pins, and trimming pins , taper sleeves and adjusting the different angles of the center positioning mechanism can satisfy the assembly / welding of the spring plate seat assembly and the axle housing body. However, when the axle is replaced in this device, the center positioning mechanism needs to be re-adjusted. Complicated, and there is no angle adjustment device in the device, the angle adjustment device can make the axle installation have a certain inclination angle, and it can be kept level with the ground during use, which improves the safety and stability of the vehicle. At the same time, the device The centering positioning mechanism and the centering accuracy are not high, which will affect the follow-up spot welding accuracy

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