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Method for designing shaft pipe necking mould

A design method and shaft tube technology, which can be used in calculations, special data processing applications, instruments, etc., can solve the problems of low dimensional accuracy, repeated mold trial and mold repair, etc., and achieve the effect of high production accuracy and production efficiency.

Active Publication Date: 2015-10-07
SHANGHAI GKN DRIVE SYST
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Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a design method for the necking die of the shaft tube, which is used to solve the need for multiple trial mold repairs during the production of the necking die of the shaft tube in the prior art, And the problem of low dimensional accuracy

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  • Method for designing shaft pipe necking mould
  • Method for designing shaft pipe necking mould
  • Method for designing shaft pipe necking mould

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Embodiment Construction

[0022] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] see Figure 1 to Figure 9 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. within the scope covered by the disclosed technical content. At the same ti...

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Abstract

The present invention provides a method for designing a shaft pipe necking mould. Three elements required in design of the shaft pipe necking mould are determined through calculation. The three elements are respectively a guiding half-angle, a transition arc radius, and a mould caliber. The three elements are calculated according to the following known parameters, that is, a specification of a shaft pipe of a transmission shaft, a necking size, and a cone half-angle, of the shaft pipe of the to-be-machined transmission shaft and a required demoulding gap delta. The three elements of the necking mould obtained through calculation in the present invention are high in accuracy and small in deviation.

Description

technical field [0001] The invention relates to the field of automobile transmission shaft production, in particular to a design method of a shaft tube necking die. Background technique [0002] The design of the intermediate transmission shaft of an automobile will put forward many requirements: high strength and lightweight requirements, space non-interference compactness requirements, specific natural frequency requirements, impact safety collapse requirements, etc., to meet these requirements is the most effective, simplest and most economical One of the best methods is: by welding the shaft tube of the three-piece assembly of the transmission shaft according to the needs of the design characteristics, the necking of different diameters and different lengths is completed, see figure 1 As shown, it is the shaft tube 1 with a necking. In the figure, R represents the radius of the concave arc at the necking of the shaft tube, β represents the half angle of the cone surface ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50B21D41/04
Inventor 朱佩坚
Owner SHANGHAI GKN DRIVE SYST
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