Vehicle rear axle assembly breast beam production method and special-purpose mold therefor

A technology of an automobile rear axle and a manufacturing method, which is applied in the field of automobile parts manufacturing, manufacturing process and mold, can solve the problems of many holes, increased automobile manufacturing costs, and difficulty in developing automobile rear axle assemblies.

Inactive Publication Date: 2008-08-06
WUXI DAWN DIE & STAMPING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The development of the automobile rear axle assembly is very difficult, especially the front beam tubular part in the assembly, which has a strange shape, many holes, complicated procedures, difficult forming, and high

Method used

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  • Vehicle rear axle assembly breast beam production method and special-purpose mold therefor
  • Vehicle rear axle assembly breast beam production method and special-purpose mold therefor

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Embodiment Construction

[0031] See Fig. 1, Fig. 2, Fig. 3, the special partial bending mold of the front crossbeam manufacturing method of automobile rear axle assembly, it comprises upper die structure, lower die structure, fixed support 7 is installed on lower die 8, flap support 6 passes through rotating shaft 3 is installed on the fixed bracket 7, the hydraulic core pulling device is installed on the flap support 6, the core pulling rod 5 is connected to the piston rod of the hydraulic cylinder 4 through a universal joint, the lower part of the lower mold 8 is provided with a top plate 11, and the top plate 11 is set on the guide block 10. The guide block 10 is mounted on the lower template 13, the lower part of the top plate 11 is connected with the ejector rod 9, and the ejector rod 9 passes through the lower template 13. The two ends of the lower template 13 are respectively provided with lower stoppers 12, and the lower stoppers 12 at both ends are respectively the turning fulcrums of the flap...

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PUM

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Abstract

The invention relates to a manufacturing method of a front beam of a vehicle rear axle assembly. The front beam of the vehicle rear axle assembly processed by the method is good in performance and long in service life. The invention also provides a special mould of the manufacturing method of the front beam of the vehicle rear axle assembly. The manufacturing method comprises the following steps: blanking, bending pipes, shaping of the middle part and local bending, shaping, reshape punching and drilling on heads of two ends of a workpiece. The special mould consists of a shaping mould and a local bending mould, while the local bending mould consists of an upper mould structure and a lower mould structure. The special mould is characterized in that a fixed stent is arranged on the lower mould; an overturn-board stent is arranged on the fixed stent through a shaft; a hydraulic core pulling device is arranged on the overturn-board stent and a core pulling stick is connected with a piston rod of a hydraulic cylinder through a universal joint; a special shaping mould which consists of an upper mould and a lower mould is characterized in that a wedge block is fixed on a slide block; a core stick is fixed on the slide block; a side-arranged Z-font oblique wedge punctures the wedge block, and the upper straight end part of the oblique wedge is connected with the upper mould while the lower straight end part of the oblique wedge extends into a through hole of the lower mould, which can guarantee the propulsion and the restoration of the core stick along the horizontal direction driven by the wedge block.

Description

(1) Technical field [0001] The invention relates to a manufacturing process and mold-related technologies, belongs to the automobile parts manufacturing industry in the mechanical processing industry, and specifically relates to a method for manufacturing a front beam of an automobile rear axle assembly and a special mold. (2) Background technology [0002] The development of the automobile rear axle assembly is very difficult, especially the front beam tubular part in the assembly, which has a strange shape, many holes, complicated procedures, difficult forming, and high technical content. There is no domestic precedent for successful development. Domestic manufacturers usually import from abroad, which increases the manufacturing cost of automobiles and increases the financial burden on users. (3) Contents of the invention [0003] In view of the above problems, the present invention provides a method for manufacturing the front beam of the automobile rear axle assembly....

Claims

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Application Information

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IPC IPC(8): B23P15/00B21D37/10B21D37/12B21D53/88B21D9/00B21D22/00B21D28/24B21D3/00
Inventor 赵敏喜姚锋王宏伟吴国平华正伟庄本王俊期
Owner WUXI DAWN DIE & STAMPING
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