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Apparatus and method for making spiral rollaway nest by pressure manufacturing or shaping

A processing and manufacturing, helical technology, applied in the field of devices and methods for press manufacturing or forming and manufacturing helical raceways, which can solve the problems of narrow space conditions, complex operation of forming dies or forming tools, etc.

Inactive Publication Date: 2008-01-02
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in this case, especially for the outer member of the universal joint, since the space condition must be narrow, it is also complicated to operate the molding die or the molding tool.

Method used

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  • Apparatus and method for making spiral rollaway nest by pressure manufacturing or shaping
  • Apparatus and method for making spiral rollaway nest by pressure manufacturing or shaping
  • Apparatus and method for making spiral rollaway nest by pressure manufacturing or shaping

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Embodiment Construction

[0039] Figures 1 and 2 show a molding die 1 for a device for forming a spiral raceway on an articulated member of a synchronous universal joint, the synchronous universal joint has a VL-shaped structure with cross raceways. The following embodiments relate to a joint outer part 2 with a raceway 3 on the inner surface 4 . However, it is also possible to produce an articulated inner part with a raceway on the outer surface in a corresponding manner.

[0040] In the VL-type synchronous universal joint, a right pitch raceway and a left pitch raceway are provided on the outer member 2 and the inner member not shown. Typically, these raceways run linearly at an ascending angle of about 15 degrees relative to the longitudinal axis of the member. However, modified raceways 3 are used here, which run helically around the longitudinal axis of the component. Here, the pitch of the helices is chosen such that, after conventional machining, a similar inclination angle is obtained as in t...

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PUM

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Abstract

Device for producing by metal forming or primary shaping spiral running tracks on inner and outer parts of homocinetic joints in VL style with crossed running tracks comprises a contour tool (1) with a negative contour of the running tracks and consisting of a first tool part (5) with negative contours (6) for right-hand running tracks and a second tool part (7) with negative contours (8) for left-hand running tracks, which slide together to form the contour tool. To eject a manufactured homocinetic joint inner part or outer part, the two tool parts are axially pulled apart without rotation, at the same time releasing the homocinetic joint inner part or outer part into a rotating motion. - An INDEPENDENT CLAIM is also included for the production by metal forming or primary shaping of spiral running tracks on inner and outer parts of homocinetic joints in VL style with crossed running tracks.

Description

technical field [0001] The invention relates to a device for press-working or forming helical raceways on the inner and outer parts of a VL-type synchronous universal joint with cross raceways, the device comprising a female raceway with these raceways profile forming tool consisting of a first tool part with a female profile for a right-rising raceway and a second tool part with a female profile for a left-curring track, these tools Partial clamping constitutes the molding die. A corresponding manufacturing method is also proposed. Background technique [0002] VL-type synchronous universal joints usually have intersecting raceways between the inner member (sleeve) and the outer member (joint). As a result, the same number of right- and left-pitch raceways is produced on the inner part and on the outer part in the unfolded situation. [0003] Due to the complex shape, these raceways are usually produced by cutting, for example by successively milling out the raceways wit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D53/00B21K1/76B22F3/12F16D3/16B21J5/12B21J13/02
Inventor O·克莱姆
Owner VOLKSWAGEN AG
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