Planet wheel thread rolling plate and thread rolling process thereof

A technology of planetary gear and thread rolling plate, applied in the field of cold stamping processing, can solve the problems of difficult chamfering and other problems, and achieve the effect of reducing processing steps and ensuring processing accuracy

Pending Publication Date: 2022-01-25
YUHUAN PUTIAN UNIDIRECTIONAL DEVICE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the technical problem that it is very difficult to chamfer the rack on the existing planetary gear

Method used

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  • Planet wheel thread rolling plate and thread rolling process thereof
  • Planet wheel thread rolling plate and thread rolling process thereof
  • Planet wheel thread rolling plate and thread rolling process thereof

Examples

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Embodiment Construction

[0041] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0042] Such as Figure 1-Figure 8 A planetary thread rubbing plate shown includes a body 1 with a feed end and a discharge end. The body 1 is provided with a number of rubbing racks 2 that are inclined toward the feed end and are evenly spaced. The tooth surface 21, the reverse tooth surface 22 and the top surface 20, the oriented tooth surface 21 is located on the side of the rubbing rack 2 facing the feed end, and the reverse tooth surface 22 is located on the side of the rubbing rack 2 facing the discharge end.

[0043] This rubbing rack 2 is provided with a raised convex portion on the side of the reverse tooth surface 22, the convex portion has an inclined side and is called an inclined surface 25, and there is a clip...

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Abstract

The invention provides a planet wheel thread rolling plate and a thread rolling process thereof, and belongs to the technical field of cold stamping machining. The problem that chamfering is very difficult to machine on a rack on an existing planet wheel is solved. The thread rolling plate comprises a body, a plurality of thread rolling racks which are obliquely arranged at uniform intervals are arranged on the body, each thread rolling rack is provided with a top face, a forward rack face and a reverse rack face, an inclined face intersecting with the reverse rack face is arranged on the side, located on the reverse rack face, of each thread rolling rack, the inclined direction of the inclined faces is the same as that of the reverse rack faces, and the included angles alpha between the inclined faces and the side surfaces where the long edges of the body are located are less than the included angles beta between the reverse rack faces and the side surfaces where the long edges of the body is located, after thread rolling, uniform rack grooves are formed in the periphery of a blank planet wheel of the thread rolling racks, and the inclined surface forms an arc-shaped chamfer surface on the groove wall on one side of each rack groove. By means of the design, chamfering machining on the planet gear rack is very convenient.

Description

technical field [0001] The invention belongs to the technical field of cold stamping processing, and relates to a thread rolling board, in particular to a thread rolling process of a planetary wheel thread rolling board. Background technique [0002] The thread rolling boards are widely used in our daily life. Generally, the thread rolling boards appear in pairs. The two thread rolling boards hold the workpiece to be processed, and then move the workpiece along the threading board to make a circle. The tooth rubbing on the thread rolling board can form a rack on the outer peripheral surface of the workpiece, and the external thread or tap of the workpiece can be processed by using the thread rubbing board. [0003] Of course, the teeth on some gears can also be thread-rolled and extruded through a thread-rolling board. For meshing, it is generally necessary to process chamfers at the end of the rack of the planetary gear. In our domestic existing technology, after the rack...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21H5/02
CPCB21H5/027
Inventor 陈伟
Owner YUHUAN PUTIAN UNIDIRECTIONAL DEVICE CO LTD
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