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CS9 rear torsion beam buffer block limiting base cold stamping process

A buffer block and limit seat technology, applied in the field of metal parts processing technology, can solve the problems of low production efficiency, cracking and high cost, and achieve the effects of improving product qualification rate, convenient and safe operation, and high production efficiency.

Inactive Publication Date: 2019-03-12
HENGYANG FENGSHUN AXLE CO LTD
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AI Technical Summary

Problems solved by technology

[0002] The existing rear torsion beam buffer block limit seat is a U-shaped structure with edges. There is a round hole in the middle of the bottom of the structure, and there are two semicircular holes on the symmetrical line of the flange. According to the conventional production method, it is punched first. Draw out the round hole in the middle of the bottom of the cup, then draw, flang and punch two semicircular holes on the edge. Due to uneven drawing, the round hole in the middle of the cup bottom is easy to deform, and secondly, R rounded corners are easy to appear in the bottom of the cup bottom. Cracking phenomenon, low product qualification rate, low production efficiency and high cost

Method used

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Embodiment Construction

[0011] 1. According to the design and development size of the workpiece, cut the sheet into strips or blocks on the shearing machine;

[0012] 2. Design and manufacture special blanking and punching molds, and punch technological holes and blanking processing on workpieces on punching machines or hydraulic presses;

[0013] 3. Carry out rounding processing on the transition of the bottom of the U-shaped part, the rounding value is R5, design and manufacture a special U-shaped part forming mold, and preform the workpiece that has been blanked and punched on a punching machine or hydraulic press;

[0014] 4. Design and manufacture special forming molds, and perform forming processing on preformed workpieces on punch presses or hydraulic presses:

[0015] 5. Design and manufacture a special punching die, punch the middle round hole at the bottom of the U-shaped piece and the semicircular holes on both sides on the punching machine or hydraulic press.

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Abstract

A CS9 rear torsion beam buffer block limiting base cold stamping process is characterized by comprising the steps of cutting, blanking, punching, preforming, forming and punching. The cracking phenomenon of circular beads of the bottom of a workpiece is avoided, the product qualification rate is significantly increased, the operation is convenient and safe, the production efficiency is high, the cost is low, and the process has the popularization value and reference value.

Description

technical field [0001] The invention relates to a processing technology of metal parts, in particular to a cold stamping technology of a CS9 rear torsion beam buffer block limit seat. Background technique [0002] The existing rear torsion beam buffer block limit seat is a U-shaped structure with edges. There is a round hole in the middle of the bottom of the structure, and there are two semicircular holes on the symmetrical line of the flange. According to the conventional production method, it is punched first. Draw out the round hole in the middle of the bottom of the cup, then draw, flang and punch two semicircular holes on the edge. Due to uneven drawing, the round hole in the middle of the cup bottom is easy to deform, and secondly, R rounded corners are easy to appear in the bottom of the cup bottom. Cracking phenomenon, low product qualification rate, low production efficiency and high cost. Contents of the invention [0003] The purpose of the present invention i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D35/00
CPCB21D35/002
Inventor 刘登发
Owner HENGYANG FENGSHUN AXLE CO LTD
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