Train damping bracket machining technology

Abstract

The invention discloses a train damping bracket machining technology. The train damping bracket machining technology comprises the following machining steps of board blanking, first-time drawing, reverse drawing, second-time drawing, overall conical surface drawing and side face punching; in the step of reverse drawing, a damping bracket after first-time drawing is placed on a female die A in the manner that an opening of the damping bracket is downward, and the damping bracket is positioned through positioning pins in the female die A; an upper die plate of a pressing machine moves downwards, drives a male die A to press the damping bracket after first-time drawing downwards and rolls downwards along the inner wall of the female die A, and at the same time, the male die A pushes a material plate of the damping bracket so that the male die A and the material plate can descend together; when the whole damping bracket is pressed into the female die A, an upper limiting block of the pressing machine makes contact with a lower limiting block of the pressing machine, reverse drawing is ended, and the male die A returns. The method of forward and reverse drawing and the method of combining a straight surface and a conical surface are adopted, the production cycle is short, the internal shape and the external shape of the product is completely controlled by a mold cavity, and the dimensions are stable; accordingly, production efficiency and the percent of pass of the product are enhanced, the production cost is lowered, and the purposes of cost reduction, fund saving and effect enhancement of an enterprise itself are achieved.

Description

technical field [0001] The invention belongs to the field of processing train accessories, and in particular relates to a processing technology for train shock absorbing brackets. Background technique [0002] Train shock absorber (6197-CL-03 / 04) series products, the thickness of the material is 3mm, the taper is 11°±0.15°, which is a deep tapered part that needs to be processed and formed. At present, the processing technology for the train shock absorber is rotary rolling and die-casting process. The die-casting process is: forming by cavity die-casting process, then turning the inner and outer surfaces, and finally drilling the side; the rotary rolling process is: using sheet metal shears Cutting, after spinning, then turning and finally side punching. There are the following defects: 1), the use of cavity die-casting, the working process is cumbersome, the working environment is poor, it is easy to cause defects in the internal structure of the material, and the inner a...

AI Technical Summary

Problems solved by technology

There are the following defects: 1), the use of cavity die-casting, the working process is cumbersome, the working environment is poor, it is easy to cause defects in the internal structure of the material, and the inner and outer surfaces of the train shock absorber also need post-finishing; 2), the use of rotary rolling process requires Using special equipment, the processing cost is high; the spinning speed is slow, the production cycle is long

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