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A special welding fixture system for gas spring type full load frame assembly

A welding fixture and full-carrying technology, which is applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of large space occupation, long production cycle, and inability to realize segmental processing and welding, so as to improve work efficiency, It is convenient for welding, guarantees the effect of welding quality and technical process size requirements

Active Publication Date: 2019-12-13
广西申龙汽车制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The underframe in this patent is integrated, which cannot be processed and welded in sections, but can only be carried out as a whole, which has a long production cycle and takes up a lot of space

Method used

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  • A special welding fixture system for gas spring type full load frame assembly
  • A special welding fixture system for gas spring type full load frame assembly
  • A special welding fixture system for gas spring type full load frame assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A special welding fixture system for gas spring type full load frame assembly, such as figure 1 As shown, it is used to weld the front section 1, the middle section 2 and the rear section 3 of the frame assembly into a frame assembly, including the base of the assembly platform and the frames arranged in sequence on the base of the assembly platform Front section welding jig 4, vehicle frame middle section welding jig 5 and vehicle frame rear section welding jig 6. Wherein the base of the assembly platform includes two parallel slide rails 8, and the welding fixtures include a bearing bracket and a positioning unit fixed on the bearing bracket, the positioning unit includes a positioning bracket, a positioning mechanism and a quick clamp, and the lower part of the bearing bracket is provided with a slider 7 , the slider 7 is in contact with the slide rail 8. The slide rail 8 is made of light rail steel. The upper plane and the side of the rail 8 are used as positioning...

Embodiment 2

[0051] This embodiment is basically the same as Embodiment 1, the difference is that in this embodiment, the supporting brackets of the front welding jig 4 of the vehicle frame, the middle welding jig 5 of the vehicle frame and the rear welding jig 6 of the vehicle frame are not equipped with steel plates, but are only made of rectangular steel plates. Welded.

Embodiment 3

[0053] This embodiment is basically the same as Embodiment 1. The welding fixture system of this embodiment also includes a displacement control device, which includes a linear motor, a displacement sensor, a welding fixture positioning mechanism and a control box, and is used to control the welding fixture on the slide position on the Among them, the linear motor includes a mover and a stator, the mover is located on each welding fixture, and the stator is located on the slide rail; the displacement sensor is a grating displacement sensor; the welding fixture positioning mechanism is a plug-in positioning structure in the up and down direction, including The pin on the welding fixture and the pin hole on the base of the assembly platform. The welding fixtures of each section are displaced, positioned and fixed on the base of the assembly platform under the control of the control box.

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Abstract

The invention relates to a welding jig system special for an air spring type whole bearing frame assembly. The welding jig system is used for welding a frame front section, a frame central section and a frame back section which form a frame assembly to form a frame assembly. The welding jig system includes a total bench base, and a frame front section welding jig, a frame central section welding jig and a frame back section welding jig which are successively arranged on the total bench base; the total bench base includes two parallel side rails; and each welding jig includes a bearing support and a positioning unit fixed on the bearing support, wherein the positioning unit includes a positioning support, a positioning mechanism and a fast jig, a slide block is arranged under the bearing support, and the slide block contacts the slide rails. Compared with the prior art, the welding jig system can shorten the production period, save place, reduce investment, is suitable for producing various frame assemblies in small bath, is accurate in positioning effect, is excellent in adaptability, and is easy to operate.

Description

technical field [0001] The invention relates to the welding field of automobiles, in particular to a special welding fixture system for a gas spring type full-loaded vehicle frame assembly. Background technique [0002] At present, our company's existing bus full-load frame assembly is mainly a space structure welded by various specifications of special-shaped steel pipes and section steel. Its welding workload and welding deformation are relatively large. The production workshop basically adopts the "floor-style" method, using existing pipes to make some integral simple welding fixtures, which has poor positioning accuracy and a large amount of rework. [0003] This kind of simple tooling is cumbersome to operate. A tape measure is used for each assembly and welding. The production efficiency is low, and the product quality and consistency cannot be guaranteed. As a result, different problems often occur in the subsequent chassis assembly process. Cutting, drilling and re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04
CPCB23K37/0443B23K2101/006
Inventor 魏显国卢政科
Owner 广西申龙汽车制造有限公司