Method for assembling, welding and locating bogie framework
A welding positioning and pairing technology, applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve problems such as unfavorable product quality control, lengthening manufacturing cycle, wasting human and material resources, etc., to reduce manual scratching. Line process, improve product quality, improve the effect of positioning accuracy
Inactive Publication Date: 2013-10-16
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Problems solved by technology
In this way, a step of marking process is added, and the manufacturing cycle is lengthened. When the frame is assembled, it is necessary to find the center line before the assembly, which wastes manpower and material resources, and is easily affected by human marking factors, which is not conducive to Product Quality Control
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[0008] Reference figure 1 , figure 2 , The present invention uses the position of the transverse stopper that needs to be processed during beam processing to make the X-direction positioning reference block 1, and uses the position of the motor suspension back plate that needs to be processed during the beam processing to make the Y-direction positioning reference block 2. The reference block is welded to this position, and the positioning reference block is processed according to the specified size when the beam is processed on the connection seat. The processed positioning reference block 1 is used as the positioning reference in the X direction of the beam, and the positioning reference block 2 is used as the positioning reference in the Y direction of the beam In this way, the positioning of the cross beam when the frame group is aligned is more accurate with the direct positioning of the tooling, which eliminates the influence of the welding deformation of the cross beam o...
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The invention provides a method for assembling, welding and locating a bogie framework, which is characterized by comprising the following steps of: respectively manufacturing location reference blocks in X and Y directions by using the positions of a cross stopping seat and a motor lifting socket back board which are to be processed when processing a beam; welding the location reference blocks on the position; when processing a connecting seat on the beam, processing the location reference blocks according to the specified size; taking the processed location reference blocks on the cross stopping seat position as the location reference of the beam in the X direction; and taking the processed location reference blocks on the motor lifting socket back board position as the location reference of the beam in the Y direction. The method can weld and locate the reference blocks according to the position to be mechanically processed in the existing beam; the location reference blocks can be mechanically processed according to the given size when processing the connecting seat; the mechanically processed location reference blocks can be used as the reference location beams in the X direction and the Y direction so as to further reduce the manually marking process; when assembling the framework, the beam centre line can be found to assemble without labor; the method can directly locate via a jig, which improves the location precision of the beam and effectively increases the product quality of the framework.
Description
Technical field [0001] The invention relates to a butt welding positioning method, in particular to a butt welding positioning method for a Hong Kong subway bogie frame. Background technique [0002] Due to the welding deformation of the cross beam of the bogie frame and other reasons, the positioning reference when the cross beam is assembled cannot be used as the positioning reference of the cross beam when the frame is assembled. Now the positioning of the cross beam when the bogie frame is assembled is often used to manually mark X and Y on the cross beam. The center line of the direction is set based on the drawn center line. In this way, one step of marking process is added and the manufacturing cycle is lengthened. It is necessary to find the center line when the frame is assembled and then perform the assembly. This wastes human and material resources and is easily affected by artificial marking factors, which is not conducive to Control of product quality. Summary of t...
Claims
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IPC IPC(8): B23K37/04
Inventor 于传颖高志波
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD