A truss type frame welding fixture

Abstract

The invention discloses a lattice type frame welding clamp. The clamp comprises structures such as a machining platform, horizontal positioning rods and vertical positioning rods; assembling holes forpositioning and installing are formed in the machining platform, the horizontal positioning rods are fixed on the upper surface of the machining platform, the assembling holes are distributed in thedirection of the horizontal positioning rods, and positioning scales are arranged on the horizontal positioning rods; and the vertical positioning rods are positioned through the positioning scales onthe horizontal positioning rods, the bottoms of the vertical positioning rods are fixed to the machining platform through the assembling holes, and the tops of the vertical positioning rods are usedfor positioning the position of a truss. The length of each horizontal positioning rod is matched with the size of a frame, the vertical positioning rods are distributed along the horizontal positioning rods according to the size and the structural design of the frame, the whole frame structure can be machined at one time, the unified reference standard is provided integrally, and the machining precision is improved; and for the clamp, the positions of the vertical positioning rods are determined through the assembling holes, and the relatively high precision can be achieved as long as the positions of the assembling holes and the lengths of the vertical positioning rods are ensured to be accurate.

Description

technical field [0001] The invention relates to the technical field of vehicle manufacturing, and further relates to a truss type vehicle frame welding fixture. Background technique [0002] The structure of a formula car mainly includes a front nose, a body, a chassis, a power unit, an empennage, and a suspension system. As the cockpit of the driver, the biggest function of the body is to protect the driver, so the body structure needs to meet high strength, but the racing car also pursues extreme performance, so it is necessary to reduce the weight of the body as much as possible, so the truss body is an ideal solution. [0003] During the processing of the racing car, the forming efficiency of the steel pipe truss frame, the positioning accuracy and rigidity of the fixture are important factors that affect the deviation between the racing car entity and the design expectation. The traditional frame processing method usually processes each part locally first, and after th...

AI Technical Summary

Problems solved by technology

[0003] During the processing of the racing car, the forming efficiency of the steel pipe truss frame, the positioning accuracy and rigidity of the fixture are important factors that affect the deviation between the racing car entity and the design expectation. The traditional frame processing method usually processes each part locally first, and after the residual stress is eliminated Then carry out overall welding; the processing process of this method is cumbersome, and it is easy to accumulate errors, which reduces the overall accuracy of the frame. How to improve the rigidity and accuracy of the fixture while meeting the needs of rapid prototyping and cost reduction is a technical problem that needs to be solved at present.

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