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Preparation method of straddle type monorail vehicle framework bottom plate pre-assembly

A monorail vehicle and straddle-type technology, which is applied in the direction of manufacturing tools, welding equipment, arc welding equipment, etc., can solve the problems of high processing cost and low weld bearing capacity

Active Publication Date: 2021-04-20
安徽雷尔伟交通装备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to propose a method for preparing a straddle-type monorail vehicle frame base plate pre-assembly, which will solve the shortcomings of the existing technology, such as high processing cost and low weld bearing capacity, so as to improve the strength of the weld , improve welding quality, increase production efficiency and reduce production cost as the starting point to improve and solve the existing technology

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  • Preparation method of straddle type monorail vehicle framework bottom plate pre-assembly

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] The preparation method of the straddle-type monorail frame base plate pre-assembly of this embodiment is described from the aspects of welding and material processing, and the specific contents are as follows:

[0036] ①Change the type of welded joints, change the welded joints from lap joints to butt joints (such as Figure 4 shown). Butt weld 4 is the welding of two workpieces in a horizontally opposite position (such as Figure 4 b) By processing the groove on the workpiece, the depth of the weld can be the same as the thickness of the base metal, and the two workpieces can be seamlessly connected.

[0037] Welding must be completed continuously when welding each weld seam, and arc stop is not allowed during welding. The welding operation is completed by welding the flat welding welding area 4a first, then turning to the vertical welding we...

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Abstract

The invention discloses a preparation method of a straddle type monorail vehicle framework bottom plate pre-assembly. The preparation method comprises the following steps that (1) a forged piece is machined; (2) a bent plate and the machined forged piece are fixed to a welding tool through a pressing device, specifically, the welding tool is provided with a welding reversible deformation design, and the included angles between the forged piece and the horizontal plane and between the bent plate and the horizontal plane are 5 degrees; (3) during welding, welding seams between the bent plate and the forged piece are set as butt welding seams, specifically, each butt welding seam is completed in the mode that flat welding position welding is conducted firstly, then vertical welding position welding is conducted, and then flat welding position welding is conducted, and each butt welding seam needs to be welded continuously without arc stopping in the welding process; and (4) after welding is completed and complete cooling is achieved, the bottom plate pre-assembly is taken out for welding seam check, and shape adjustment after welding is not needed. The bottom plate pre-assembly product adopting a butt joint plays a positive role in promoting the welding seam strength, the welding quality and the production efficiency and reducing the cost.

Description

technical field [0001] The invention relates to a method for preparing a straddle-type monorail vehicle frame base plate preassembly, which is mainly used for welding production and quality control of key components of a straddle-type monorail vehicle bogie. Background technique [0002] The straddle-type monorail car frame base plate pre-assembly is a straddle-type monorail vehicle bogie reference component, that is, other parts of the monorail bogie must be assembled based on the base plate pre-assembly. In addition to strict requirements on welding quality, assembly accuracy and post-welding Dimensional control requirements are also extremely strict. Therefore, according to welding and size requirements, strict process implementation requirements have been formulated for the production and manufacture of straddle-type monorail vehicle frame floor pre-assemblies. [0003] Regarding the production and manufacturing process of the straddle-type monorail frame base plate pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/02B23K31/00B23K31/12
Inventor 纪益根于馨智
Owner 安徽雷尔伟交通装备有限公司
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