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Method for improving precision of sheet metal part

A technology for sheet metal parts and precision, applied in the field of improving the precision of sheet metal parts, can solve problems such as reducing precision, and achieve the effect of reducing weight, good versatility and high precision of parts

Inactive Publication Date: 2021-06-08
成都瑞阳金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for improving the precision of sheet metal parts, which has the advantage of high precision of the parts, and solves the problem of springback and deformation of the existing sheet metal products during the bending process. Issues that cause some loss of accuracy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Material selection: select a plate with uniform texture, and understand the relevant information about the plate, so as to select a stable process parameter for processing; drawing: expand the structural part to be processed into a flat piece, and draw graphics according to the unfolded flat piece; blanking : When NC blanking, you must first write the NC machining program, which is to use the programming software to write the drawn expansion diagram into a program that can be recognized by the NC machine tool, and let it step by step on an iron plate according to these programs. The structural shape of the piece is punched out; pressure riveting: complete the pressure riveting operation by punching the riveting piece or hydraulic pressure riveting machine, and riveting it to the sheet metal piece; bending: folding the 2D flat piece into a 3D part , its processing requires a folding bed and corresponding bending molds to complete the operation. According to a certain bend...

Embodiment 2

[0036] In embodiment one, add following operation:

[0037] In step 1, you should learn more about the details of the panel manufacturers, such as production licenses, quality certifications, and main product inspection reports, and then comprehensively analyze the various materials of the manufacturers to see if they can meet the production requirements.

[0038] Material selection: select a plate with uniform texture, and understand the relevant information about the plate, so as to select a stable process parameter for processing; drawing: expand the structural part to be processed into a flat piece, and draw graphics according to the unfolded flat piece; blanking : When NC blanking, you must first write the NC machining program, which is to use the programming software to write the drawn expansion diagram into a program that can be recognized by the NC machine tool, and let it step by step on an iron plate according to these programs. The structural shape of the piece is p...

Embodiment 3

[0040]In embodiment two, add following operation:

[0041] In step 2, the process holes, grooves, and gaps are pre-processed. In order to prevent cracks caused by uneven stress on the material during bending, it is generally necessary to pre-cut or punch process holes. Usually, the groove width K≥t and the groove depth L≥ t+r+K / 2, in order to prevent the cumulative error in the process of multiple bending, it is necessary to consider adding positioning elements such as pressing plate and positioning pin when designing the mold.

[0042] Material selection: select a plate with uniform texture, and understand the relevant information about the plate, so as to select a stable process parameter for processing; drawing: expand the structural part to be processed into a flat piece, and draw graphics according to the unfolded flat piece; blanking : When NC blanking, you must first write the NC machining program, which is to use the programming software to write the drawn expansion di...

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PUM

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Abstract

The invention discloses a method for improving the precision of a sheet metal part. The method comprises the following steps of material selection, wherein a sheet material with uniform texture is selected, and a stable process parameter is selected for machining after related information of the sheet material is understood; drawing, wherein the to-be-machined structural part is expanded into a flat plate part, and a graph is drawn according to the expanded flat plate part; and blanking, wherein during NC blanking, firstly, a numerical control machining program needs to be written, that is, programming software is used for writing the drawn expansion graph into a program capable of being recognized by an NC machining tool. By adopting the operation of preventing springback and reducing the flexural deformation of the tool, the problem that during bending machining of an existing sheet metal product, the precision is reduced due to springback and deformation of the sheet metal part is solved. The method for improving the precision of the sheet metal part has the advantages that the precision of the part is high, the process is simple, the universality is high, the appearance quality of the product is improved, the production cost is reduced, and the weight of the product is reduced.

Description

technical field [0001] The invention relates to the technical field of sheet metal processing, in particular to a method for improving the precision of sheet metal parts. Background technique [0002] Sheet metal processing is a key technology that sheet metal technicians need to master. A kind of cold stamping die structure and process parameters, various equipment working principles and operating methods, including new stamping technology and new technology, and the processing of sheet metal parts is called sheet metal processing. [0003] With the development of sheet metal CNC equipment, cabinets, consoles, etc. have adopted a large number of sheet metal structures formed by sheet metal stamping, and their bending accuracy has a direct impact on the use and performance of the entire product. In order to meet different design requirements , sheet metal parts are often bent into various shapes. Bending processing is widely used in sheet metal processing and is also the mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 龙益文孙福全王升怀汤子友张继辉
Owner 成都瑞阳金属制品有限公司