A kind of H-shaped frame welding deformation control device and control method

Abstract

The present disclosure proposes an H-shaped frame welding deformation control device and control method, including: a clamp body, a positioning arm fixing device, and a spring tube fixing device; the clamp body is a main frame structure carrying an H-shaped frame, on which There are a positioning arm fixing device, a beam fixing device and a spring tube fixing device; the positioning arm fixing device includes a first tensioner, and the first tensioner tightens the side beam positioning arm to restrain the beam body during the welding process of the positioning arm Twisted and deformed to the outside; the spring tube fixing device includes a second tensioner, and after the inner girth weld is filled and welded, the pretightening force of the second tensioner is adjusted to tighten the beam to prefabricate the anti-deformation towards the inside. Through the combined action of the clamp body, the fixing device of the positioning arm and the fixing device of the spring tube, the composition of the side beam and the parts of the positioning arm are fixed to achieve the effect of rigid restraint and control the welding deformation.

Description

technical field [0001] The disclosure belongs to the technical field of welding deformation control tooling, and in particular relates to an H-shaped frame welding deformation control device and control method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] The bogie frames of railway vehicles EMUs, subways and railway passenger cars include H-shaped frames. Weld seam connection, the inventor found in the research that the welding deformation of this structure has the following characteristics: [0004] 1) The welding seam is asymmetrical, the air spring support beam is welded on the outside of the side beam, and the side beam has a tendency to deform outward after welding (2-3mm on one side); the stiffness of the side beam is below the beam body, and the beam body warps in the Z direction after welding the girth weld Curved (2-3mm on ...

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Problems solved by technology

[0005] 2) Due to the complex deformation of the side beam, the positioning arm of the side beam is twisted, and the processing volume is insufficient

[0007] Orthopedics of welded parts is the biggest waste in the production process of welded products. It not only increases the manufacturing cycle of products, but currently the repair time of each set of frames is about 3 hours, requiring two people. According to the production capacity of 12 vehicles / day, the daily repair time A total of 72 hours; and due to mechanical and flame adjustments, the base metal of the welded product will collapse, the risk of weld cracks and tissue hardening will affect the operation safety of the product

[0008] At present, among the welding deformation tooling for the frame, it is mainly the assembly and welding tooling for the individual side beams. The side beam and the H-frame are completely different in terms of structure and welding requirements. Therefore, the current welding deformation tooling Unable to meet the welding deformation control requirements of the H-shaped frame structure

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