Chain wheel or tooth ring production process

Abstract

The invention provides a chain wheel or tooth ring production process. The chain wheel or tooth ring production process comprises such steps as shape cutting, inner hole cutting, forging formation and trimming treatment; and a steel plate is formed by forging after tooth-shaped cutting, so that the forging resistance is relatively lower, burrs are relatively fewer, the side surfaces of arc teeth of chain wheels or tooth rings are not liable to break, the product reject ratio is relatively lower, the mold life is relatively longer, the tonnage of a needed forging machine is relatively lower, and the production cost is relatively lower.

Description

technical field [0001] The invention relates to a production process of a mechanical transmission part, in particular to a production process of a sprocket or a toothed ring. Background technique [0002] Sprockets and gear rings are common mechanical transmission parts and are widely used in various mechanical equipment. In traditional production, forging is usually used for production, the material utilization rate is relatively low, and the curved tooth side of the sprocket or ring is easy to crack, the product defect rate is relatively high, and the mold is easy to be damaged. The service life of the mold relatively low. [0003] In order to avoid cracking of the curved tooth flanks, some enterprises adopt multiple forging methods for production. This production process needs to use a pair of molds for each forging. Although the molds are not easy to damage, the production cost is relatively high; some enterprises also use numerical control. The machining center direct...

AI Technical Summary

Problems solved by technology

In traditional production, forging is usually used for production, the material utilization rate is relatively low, and the curved tooth side of the sprocket or ring is easy to crack, the product defect rate is relatively high, and the mold is easy to be damaged. The service life of the mold relatively low

[0003] In order to avoid cracking of the curved tooth flanks, some enterprises adopt multiple forging methods for production. This production process needs to use a pair of molds for each forging. Although the molds are not easy to damage, the production cost is relatively high; some enterprises also use numerical control. The machining center directly processes the sprocket or gear ring. This production process does not require the use of area, but the equipment cost is relatively high, and the processing efficiency is relatively low, which will also lead to relatively high production costs.

[0004] In addition, for large sprockets or large gear rings, it is difficult to use CNC machining centers to directly process them. When forging is used for production, the tonnage of the forging machine required is relatively large, which will also lead to relatively high production costs.

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