Bus body skeleton welding jig with position-changing function

Abstract

The invention relates to a bus body skeleton welding jig with a position-changing function. The bus skeleton welding jig with the position-changing function comprises a clamping device and a base, wherein the base is arranged on the clamping device; a body skeleton to be welded is placed on the base and is fixed by the clamping device in the vertical direction; position-changing mechanisms for fixing the body skeleton to be welded in the horizontal direction are arranged at the positions, corresponding to two sides of the body skeleton to be welded, at two ends of the base; and the position-changing mechanisms can horizontally rotate relative to the body skeleton to be welded so as to fix the body skeletons with different widths. According to the fixture, the position-changing mechanisms are designed to be of the adjusting structures capable of horizontally rotating relative to the body skeleton to be welded, and when body skeletons of different bus types need to be positioned, the position-changing mechanisms are rotated to change positions, so that the installation requirements of the body skeletons in different models can be met, the universalized design of the welding jig is realized, and finally the effects on reducing the site occupation, ensuring the product quality and improving the working efficiency are achieved.

Description

technical field [0001] The invention relates to the field of vehicle processing equipment, in particular to a bus body frame welding fixture with a displacement function. Background technique [0002] The bus body frame is the main frame of the bus, which is mainly composed of rectangular structural steel connected by welding process. From the perspective of process block, it can be divided into front wall, rear wall, left wall, right wall, roof, floor frame ( or full load frame) six large pieces. [0003] In order to meet the production cycle and quality control of the product, the skeleton assembly of each piece must be welded through the welding fixture to ensure the process requirements. The main parts of the bus body frame structure are columns, beams, etc. These parts are generally made of carbon structural steel or low alloy structural steel, mainly rectangular tube structure, and processed by bending, pressing, tailor welding and other processes. Because the skelet...

AI Technical Summary

Problems solved by technology

[0005] In the universal design process of the body frame welding jig, even for the same type of car, the frame spacing of different body types is also different. Since the body frame basically uses concave positioning blocks for positioning, it is difficult to integrate different car types in the welding jig design. The skeleton is placed at the same position, especially when the distance between the skeletons to be positioned is smaller than the width of the skeleton, which causes the positions of the positioning blocks of the body skeletons of different models to easily interfere with each other and cannot be used universally

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