Manufacturing and detection method for large slab three-dimensional metal cover part
A detection method and cover technology, which is applied in manufacturing tools, metal processing, metal processing equipment, etc., can solve the problems of three-dimensional metal cover detection difficulties, low detection efficiency, and long detection time, so as to shorten the detection time and improve the detection process. The effect of rapidity and reduced detection cost
Inactive Publication Date: 2013-01-02
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Problems solved by technology
However, it is difficult to detect the three-dimensional metal covering of large (overall) thick plates. The digital detection method requires the purchase of large-scale measuring equipment and the detection time is long, the detection cost is high, and the detection efficiency is low. It is not suitable for testing while adjusting and repairing.
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[0014] Reference attached figure 1 , The picture shows the overall model of the steel structure outer cover of the three-dimensional end wall of an export railway passenger car. The tested product is a large (overall) thick plate three-dimensional metal cover with a length of more than 4m, a width of more than 3m, and a drawing depth of more than 600mm , The plate thickness is 2mm; the preparation and detection methods are as follows:
[0015] 1. Analyze the design structure of large (overall) thick plate three-dimensional metal panels, and determine according to the existing manufacturing resource capabilities of the manufacturing company, such as the technical indicators of small pressure processing equipment, the mold design and manufacturing level, and the later assembly and welding manufacturing process plans. Reasonable block scheme;
[0016] 2. Design and manufacture an overall mold with a single-piece dividing line according to the block plan, and provide equipment for sin...
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Abstract
The invention provides a manufacturing and detection method for a large slab three-dimensional metal cover part. The method is characterized in that blocks are individually manufactured and then welded into a whole, single piece shaping and single piece trimming based on an integral die are carried out on each single piece of the blocks, and single piece detection and integral seaming based on the integral die are used for each single piece of the blocks. The invention has the following advantages compared to the prior art: investment is reduced since investment on purchase of large measuring equipment is avoided; the method meets the process need of simultaneous trimming and detection; detection process is fast and visual and is easy to operate since one only needs to put a large slab three-dimensional metal cover part on large detection equipment for detection; the method is especially convenient for detection of single pieces of the blocks of the large slab three-dimensional metal cover part; detection time is shortened, detection cost is reduced, and detection efficiency is improved.
Description
Technical field [0001] The invention relates to a method for manufacturing and detecting a large thick plate three-dimensional metal cover. Background technique [0002] The outer covering parts of the three-dimensional end wall steel structure of railway passenger cars and the streamlined front-end steel structure are large (overall) thick plate three-dimensional metal covering parts, with diverse shapes, large overall sizes, and large drawing depths. They are made of 2mm-3mm thick metal materials; After the mold is used, it needs to be adjusted and repaired to meet the size requirements and aesthetic requirements of the product design. During the adjustment process, it is necessary to adjust and trim while inspecting. However, it is difficult to detect large (overall) thick plate three-dimensional metal panels. The digital detection method requires the purchase of large-scale measuring equipment and the detection time is high, the detection cost is high, and the detection effi...
Claims
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IPC IPC(8): B21C51/00
CPCB23K31/12B21D22/02B23K31/02
Inventor 黄治轶张军
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD