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Cam bit die

A cam and mold technology, applied in the direction of manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc., can solve problems affecting product processing, air hole burrs, and mold filling dissatisfaction, so as to achieve smooth exhaust, Simple structure and simple structure

Active Publication Date: 2014-02-05
JIANGSU SUNWAY PRECISION FORGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (2) In order to solve the problem of dissatisfaction of the overall mold, it is necessary to open air holes in the corresponding dissatisfaction of the product. Because it is hot forging, the metal is easy to flow, and burrs are easy to be generated at the air holes, which will affect the subsequent processing of the product

Method used

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Embodiment Construction

[0026] refer to figure 1 An assembly diagram showing an embodiment of the present invention, a cam block mold provided by the present invention includes a bottom die 1, an outer die 2 and an inner die 3, wherein the bottom die 1 is provided with an outer die 2 Compatible through hole 11, refer to figure 2 , the outer die 2 is provided with a groove 21 matched with the inner die 3, and the inner die 3 is connected with the outer die 2 through the groove 21, referring to figure 2 and image 3 , there is a mold entry angle of 1° between the inner die 3 and the outer die 2, and the H7 / m6 transition fit is used between the inner die 3 and the outer die 2, so that the inner die 3 can be connected with the outer die 2 The convenient assembly of the groove 21; the outer die 2 is connected with the bottom die 1 through the through hole 11 on the bottom die 1, and the H7 / z6 interference fit is adopted between the outer die 2 and the bottom die 1, so that The outer die 2 and the bot...

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Abstract

The invention provides a cam bit die. The cam bit die comprises a bottom die, an outer die and an inner die, wherein a through hole which is matched with the outer die is formed in the bottom die, a groove which is matched with the inner die is arranged at one end of the outer die, a cam hole which penetrates the other end of the bottom of the outer die is formed in a surface of the groove, one or a plurality of outer die air grooves which connect the cam hole and side walls of the groove are formed in the surface of the groove, ends of the inner die, which are in contact with the outer die, are provided with chamfers, annular air grooves are formed between the chamfers and the outer die, one or a plurality of inner die air grooves which connect two ends of the inner die are formed in outer side walls of the inner die, the inner die is connected with the outer die through the groove, the outer die is connected with the bottom die through the through hole, and the outer die air grooves are communicated with the inner die air grooves through the annular air grooves. The cam bit die has the advantages that the structure is simple, the design is skillful, corner collapse and burrs are absent, the application range is wide, and the like.

Description

technical field [0001] The invention relates to a hot forging die structure in the technical field of metal pressure processing. The invention is suitable for molds of cam blocks and other special-shaped products, and belongs to the technical field of precision forging and forming of parts with complex shapes. Background technique [0002] The cam block is an important part in the automobile engine. It is used to control the opening and closing of the valve. The product is an asymmetrical part with high precision requirements. Part of the forged surface remains after subsequent grinding. When forming cam blocks or other special-shaped products, due to the complex shape and asymmetry of the product, the requirements for the contour of the shape are high, and there are requirements for the filling degree of the product. In the traditional design of the mold structure, the overall mold is used, and the contour of the product can be guaranteed, but the disadvantages of this mo...

Claims

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Application Information

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IPC IPC(8): B21J13/02
Inventor 蔡冰施卫兵龚爱军朱华
Owner JIANGSU SUNWAY PRECISION FORGING
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