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Stamping method of automobile shock absorber frame

An automobile shock absorber and stamping forming technology, which is applied in the field of stamping forming, can solve the problems of easy deformation and cracking of the tapered part, high production cost, etc., and achieve the advantages of improving strength and toughness, eliminating stress concentration and high production efficiency Effect

Inactive Publication Date: 2019-07-16
宁海县恒丰轻工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the forming of the skeleton is mostly produced by a combination of stamping and machining, but the production cycle of machining is longer, resulting in higher production costs, and it is easy to crack if the flange is turned after machining. And the tapered part is also easy to deform, resulting in relatively low yield and high cost

Method used

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  • Stamping method of automobile shock absorber frame
  • Stamping method of automobile shock absorber frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A stamping forming method of a car shock absorber skeleton of the present invention, it comprises the following steps:

[0032] 1) Blanking and stretching: Blanking and stretching on the blanking and stretching machine;

[0033] 2) Stretching: Stretch the billet to a height of 48±0.2mm and a diameter of 57±0.1mm;

[0034] 3) Punch hole;

[0035] 4) Shaping: Stretching and shaping on the stretching machine, the height of the blank after shaping is 62.1±0.1mm;

[0036] 5) Expanding the upper opening: the height of the expanding upper opening of the billet is 25.1±0.5mm. While expanding the opening, use the Huff mechanism to hold it tightly to initially shape the cone of the billet. At this time, the clamp between the busbar of the cone and the axis The angle is 1 / 3 of the angle between the generatrix of the cone and the axis when it is fully formed, and the lower opening is flanged at 10°, and the overall height of the blank is controlled at 53±0.2mm;

[0037] 6) Fitti...

Embodiment 2

[0046] A stamping forming method of an automobile shock absorber skeleton, which comprises the following steps:

[0047] 1) Blanking and stretching: Blanking and stretching on the blanking and stretching machine;

[0048] 2) Stretching: Stretch the billet to a height of 48±0.2mm and a diameter of 57±0.1mm;

[0049] 3) Punch hole;

[0050] 4) Shaping: Stretching and shaping on the stretching machine, the height of the blank after shaping is 62.1±0.1mm;

[0051] 5) Expand the upper opening: the height of the expanded upper opening of the billet is 25.1±0.5mm. While expanding the opening, use the Huff mechanism to hold it tightly to initially form the cone of the billet, and turn the lower opening by 50°. At this time The angle between the generatrix of the cone and the axis is 2 / 3 of the angle between the generatrix of the cone and the axis when it is fully formed, and the overall height of the blank is controlled at 53±0.2mm;

[0052] 6) Fitting and flanging: After trimming,...

Embodiment 3

[0062] A stamping forming method of an automobile shock absorber skeleton, which comprises the following steps:

[0063] 1) Blanking and stretching: Blanking and stretching on the blanking and stretching machine;

[0064] 2) Stretching: Stretch the billet to a height of 48±0.2mm and a diameter of 57±0.1mm;

[0065] 3) Punch hole;

[0066] 4) Shaping: Stretching and shaping on the stretching machine, the height of the blank after shaping is 62.1±0.1mm;

[0067] 5) Expanding the upper opening: the height of the upper opening of the billet is 25.1±0.5mm. While expanding the opening, use the Huff mechanism to hold it tightly to initially form the cone of the billet, and turn the lower opening by 30°. At this time And the angle between the generatrix and the axis of the cone formed after the Huff mechanism is tightened is half of the angle between the generatrix and the axis of the cone after it is fully formed, and the overall height of the blank is controlled at 53±0.2mm;

[0...

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Abstract

A stamping forming method for automobile shock absorber framework includes steps: 1) blanking and drawing; 2) drawing; 3) top hole punching; 4) shaping; 5) upper opening expanding; 6) upper opening trimming and flanging; 7) bottom hole punching; 8) edge cutting; 9) bottom projection punching; 10) auxiliary hole punching; 11) notching; 12) inspection and packaging. Compared with the prior art, themethod has advantages that since a half mechanism is used for conical portion forming during upper opening expanding while flanging is realized, and conical portions and flanges are formed through twoprocesses, easiness in conical portion forming is achieved, and less proneness to cracking in flanging is realized; by edge cutting and bottom projection punching after bottom hole punching, inspection in a production process is facilitated, convenience in positioning is achieved, and accordingly accuracy in edge cutting and bottom projection punching is improved, and the finished product rate isincreased; by arrangement of eight auxiliary holes, the problem of stress concentration after opening expanding and conical portion processing can be effectively eliminated, and accordingly product toughness is improved; the whole process is free of machining, and short production period, high production efficiency and sharp reduction of production cost are realized.

Description

technical field [0001] The invention belongs to the technical field of stamping and forming, and more precisely relates to a stamping and forming method of an automobile shock absorber frame. Background technique [0002] The automobile shock absorber frame is the supporting frame of the automobile shock absorber, which requires high strength and toughness, and the frame needs to be compounded with rubber parts, and the frame structure is relatively complicated, with tapered parts and flanges. [0003] At present, the forming of the skeleton is mostly produced by a combination of stamping and machining, but the production cycle of machining is longer, resulting in higher production costs, and it is easy to crack if the flange is turned after machining. The tapered portion is also easily deformed, resulting in relatively low yield and high cost. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a stamping and formi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D35/00B21D53/88
CPCB21D35/001B21D35/002B21D53/88
Inventor 王智勇陈汉永
Owner 宁海县恒丰轻工有限公司