Shearing forming method for annular outer rib cylindrical part

A technology of cylindrical parts and rings, which is applied in the field of shear forming of ring-shaped outer-reinforced cylindrical parts, can solve problems such as the difficulty in forming ring-shaped outer-reinforced structural parts, improve forming accuracy and structural reliability, and reduce equipment requirements and reduce The effect of energy consumption

Pending Publication Date: 2022-03-18
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to provide a shear forming method for annular outer rib cylindrical parts to solve the problem of difficult forming of annular outer rib structural parts in the traditional plastic forming process, and to realize high-dimensional precise forming of thin-walled annular outer rib cylindrical parts the goal of

Method used

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  • Shearing forming method for annular outer rib cylindrical part
  • Shearing forming method for annular outer rib cylindrical part
  • Shearing forming method for annular outer rib cylindrical part

Examples

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Embodiment

[0033] Example A method of shearing and forming a ring-shaped outer rib cylindrical part

[0034] Based on the cylindrical piece spinning forming process, the present embodiment selects the shearing wheel 4 and changes the working angle of the shearing wheel 4, so that the shearing surface of the shearing wheel 4 and the blank 1 of the cylindrical piece are formed The assembly surface is contacted, and then the adjustment of the working mode of the rotary wheel is realized: from the single spinning working mode to the shearing-spinning combined working mode; at the same time, the annular back pressure mold 2 is used to The barrel blank 1 imposes radial constraints. The method specifically includes the following steps:

[0035] S1. Making the tube blank: Machining the original tube-shaped piece to be processed, and then processing the end with a pressure shoulder after opening a hole in the circumferential direction to prepare a tube-shaped piece blank 1 with a pressure should...

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Abstract

The invention belongs to the technical field of metal plastic processing, and discloses an annular outer rib cylindrical part shearing forming method which comprises the following steps: based on a cylindrical part spinning forming process, applying radial constraint to a cylindrical part blank by adopting an annular back pressure mold, selecting a shearing spinning roller and changing the working angle of the shearing spinning roller at the same time; and the shearing working face of the shearing spinning roller makes contact with the cylindrical part blank in an assembling face mode, and the cylindrical part blank is sheared and spun till the annular outer rib is formed. According to the principle of material shearing separation and shearing deformation, and in combination with the characteristics of a local forming process, the problem that in a traditional process, an outer rib structure is difficult to form is solved, and high-dimensional accurate forming of the thin-wall annular outer rib cylindrical part can be achieved.

Description

technical field [0001] The invention belongs to the technical field of metal plastic processing, and relates to a forming process of an annular outer rib cylindrical part, in particular to a shear forming method of an annular outer rib cylindrical part. Background technique [0002] With the rapid development of aerospace and advanced weaponry and other fields, the demand for ribbed structural parts is also increasing. Among them, for the thin-walled annular outer rib cylindrical part, due to the particularity of its own structure, the existing technology has great limitations in forming the thin-walled annular outer rib cylindrical part. At present, welding technology is most commonly used to connect the outer ribs to the cylinder when forming thin-walled annular outer rib cylindrical parts in engineering, but it is inevitable that there will be welds in thin-walled annular outer rib cylindrical parts formed in this way. This not only reduces the precision of the outer rib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D22/16
CPCB21D22/16
Inventor 樊晓光姚毅詹梅马飞许泉高鹏飞
Owner NORTHWESTERN POLYTECHNICAL UNIV
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