Split type diamond specially-shaped grinding wheel and manufacturing technology thereof

Abstract

The invention discloses a split type diamond specially-shaped grinding wheel. The split type diamond specially-shaped grinding wheel comprises a grinding ring clamped between a pressing plate and a base plate, wherein the grinding ring is formed by splicing a plurality of single teeth; an anti-flying mechanism for limiting the radial, axial and circumferential degrees of freedom is arranged among each single tooth, the pressing plate and the base plate; the anti-flying mechanism comprises a flange as well as a blocking structure and a metal body which are matched with a groove; the flange and the groove are arranged among / between each signal tooth and the pressing plate and / or the base plate; and the metal body is arranged between a spliced grinding ring and a pressing plate clamping surface, or a base plate clamping surface, or a pressing plate and the base plate clamping surface. The manufacturing technology of the specially-shaped grinding wheel comprises the following steps of: firstly manufacturing the single teeth of an equal-shaped abrasion structure; then splicing the single teeth into the grinding ring; and finally clamping the spliced grinding ring between the pressing plate and the base plate, and setting the anti-flying mechanism for limiting the radial, axial and circumferential degrees of freedom of the single teeth. The equal-shaped abrasion structure difficultly processed on the integral grinding wheel is decomposed into the single teeth and then the single teeth are spliced, so that the split type diamond specially-shaped grinding wheel is convenient to realize.

Description

(1) Technical field: [0001] The invention relates to a metal-bonded diamond grinding tool, in particular to a split diamond special-shaped grinding wheel and a manufacturing process thereof. (2) Background technology: [0002] At present, metal-bonded diamond special-shaped grinding wheels generally adopt powder metallurgy sintering process to manufacture diamond working rings. The first method is often used: directly sintering the diamond working ring to the substrate. Method 2: Consolidate the sintered diamond working ring on the substrate by mechanical or gluing. Method 3: For some special-shaped wheels with intermittent teeth, brazing is usually used to weld and consolidate the diamond teeth to the steel matrix. [0003] In order to improve the efficiency level of the diamond grinding wheel and the surface finish of the processed material, it is necessary to improve the chip removal and cooling capacity of the diamond grinding wheel during the working process. The effe...

AI Technical Summary

Problems solved by technology

[0004] Since the diamond working ring is manufactured by powder metallurgy, the fluidity of the metal powder (binder) is poor during the high-temperature and high-pressure manufacturing process. If the mold structure is too complicated, the pressure transmission will be affected, resulting in the diamond working ring. The uneven density of the material will cause performance deviation

Therefore, the products of the prior art have fewer grooves and holes set by mold preset (for example, generally 200mm diameter grinding wheel, setting is less than 12), and the shape is simple, and the effect is very limited; while the use of post-processing The method is often to remove some parts of the diamond ring. The removed part contains expensive diamonds that cannot be recycled (such as the electric spark method) and causes waste. Moreover, due to the existence of diamonds, it is usually difficult to process, resulting in higher costs; Using brazing method, the welding strength and safety are difficult to guarantee, and it is not suitable for fine processing

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