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Automobile part forging die assembly

A technology of auto parts and molds, applied in the direction of manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc., can solve the problems of easy misalignment, easy backflow, difficult to take out, etc., to prevent misalignment, The effect of preventing material flow from being blocked and preventing lamination cracks

Inactive Publication Date: 2017-07-11
ANHUI CHENGYOU AUTO PARTS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The forging dies of the prior art have the following deficiencies: (1) The upper and lower dies are subjected to mechanical external forces during the film lamination process, which easily produces dislocations and affects the accuracy of forging; (2) the cavity of the traditional die The edge of the mold is straight, and the corners are sharp. When the material is forged, it is easy to flow back and cause lamination; (3) when stamping, the air in the mold cavity will form an air bag, and the air bag will rebound under high pressure, causing the material to not be filled. Product cavity; (4) The depth of the cavity of the upper mold of the traditional mold is smaller than that of the cavity of the lower mold. After forging, the product is formed in the cavity of the lower mold, which is not easy to take out

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as Figure 1-2 As shown, this embodiment discloses a forging die assembly for auto parts, including an upper die 1 and a lower die 2 that cooperate with each other. Both the bottom of the upper mold 1 and the top of the lower mold 2 are provided with mold cavities. The cavity shapes of the upper mold 1 and the lower mold 2 of the present invention are corresponding.

[0027] The mold cavity of the upper mold 1 includes an upper resistance bridge 11 , an upper product cavity 12 , and an upper flash groove 13 . The upper resistance bridge 11 has a ring structure, an upper product cavity 12 is formed on the inner side, and an upper flash groove 13 is surrounded on the outer side. One or several discontinuous sections of the upper resistance bridge 11 are arched outwards to form an upper fillet structure 111 .

[0028] The mold cavity of the lower mold 2 includes a lower resistance bridge 21 , a lower product cavity 22 , and a lower flash groove 23 . The lower resi...

Embodiment 2

[0035] Such as Figure 1-2 As shown, this embodiment discloses a forging die assembly for auto parts, including an upper die 1 and a lower die 2 that cooperate with each other. Both the bottom of the upper mold 1 and the top of the lower mold 2 are provided with mold cavities. The cavity shapes of the upper mold 1 and the lower mold 2 of the present invention are corresponding.

[0036] The mold cavity of the upper mold 1 includes an upper resistance bridge 11 , an upper product cavity 12 , an upper flash groove 13 , and an upper jaw 14 . The upper resistance bridge 11 has a ring structure, an upper product cavity 12 is formed on the inner side, and an upper flash groove 13 is surrounded on the outer side. One or several discontinuous sections of the upper resistance bridge 11 are arched outwards to form an upper fillet structure 111 . An upper jaw 14 is provided on the upper flash groove 13 , and the upper jaw 14 is connected to the edge of the upper mold 1 .

[0037] The...

Embodiment 3

[0041] Such as Figure 1-2 As shown, this embodiment discloses a forging die assembly for auto parts, including an upper die 1 and a lower die 2 that cooperate with each other. Both the bottom of the upper mold 1 and the top of the lower mold 2 are provided with mold cavities. The cavity shapes of the upper mold 1 and the lower mold 2 of the present invention are corresponding.

[0042] The mold cavity of the upper mold 1 includes an upper resistance bridge 11 , an upper product cavity 12 , an upper flash groove 13 , and an upper jaw 14 . The upper resistance bridge 11 has a ring structure, an upper product cavity 12 is formed on the inner side, and an upper flash groove 13 is surrounded on the outer side. One or several discontinuous sections of the upper resistance bridge 11 are arched outwards to form an upper fillet structure 111 . An upper jaw 14 is provided on the upper flash groove 13 , and the upper jaw 14 is connected to the edge of the upper mold 1 .

[0043] The m...

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Abstract

The invention discloses an automobile part forging die assembly and relates to the technical field of forging. A die comprises an upper die and a lower die matched with the upper die. Die cavities are formed in the bottom of the upper die and the top of the lower die, and the depth of the die cavity of the upper die is larger than that of the die cavity of the lower die. The die cavity of the upper die and the die cavity of the lower die each comprise a resistance bridge, a product mold cavity, a flash groove and a jaw, wherein the resistance bridge is of an annular structure, the product mold cavity is formed in the inner side of the resistance bridge, and the flash groove surrounds the outer side of the resistance bridge; one section or intermittent sections of the resistance bridge arch towards the outer side, and circular bead structures are formed; and venting needle holes which are through from the top to bottom are formed in the resistance bridge of the lower die. The die further comprises a positioning structure which is used for limiting the relative positions of the upper die and the lower die. The automobile part forging die assembly has the advantages that positioning is accurate during forging, the product mold cavities are filled with blanks, the situation that laminated cracks are formed in a product after forging is prevented, and the product can be taken out conveniently after forging.

Description

technical field [0001] The invention relates to the technical field of forging, in particular to forging die assemblies for auto parts. Background technique [0002] Auto parts such as hub brackets, three-arm flanges, etc. are usually forged by high-temperature hydraulic methods. By placing the blank after heating treatment in the intermediate frequency furnace in the product cavity of the lower mold, the hydraulic cylinder drives the upper mold to press down for forging, and then lifts the upper mold, and the product is formed in the cavity of the lower mold and taken out manually Product, complete the forging of the product. [0003] The forging dies of the prior art have the following deficiencies: (1) The upper and lower dies are subjected to mechanical external forces during the film lamination process, which easily produces dislocations and affects the accuracy of forging; (2) the cavity of the traditional die The edge of the mold is straight, and the corners are sha...

Claims

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Application Information

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IPC IPC(8): B21J13/02
CPCB21J13/02
Inventor 倪明光陶景平张开敏
Owner ANHUI CHENGYOU AUTO PARTS MFG
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