Device and method for cold press molding of diamond positioning arranging cutter

Abstract

The invention discloses a device and a method for cold press molding of diamond positioning arranging cutter. The device comprises a bottom mould, a cover mould, a pressing mould, a gasket and a grid. A cylinder on the bottom mould is matched with an inner hole of the cover mould to form a holding chamber for cold press of a diamond matrix material. A certain amount of matrix material powder is filled in the holding chamber firstly, elevation of the cover mould is realized by adjusting the gasket, the grid is placed on the cover mould when the matrix material is elevated to the preset position, the diamond granules are positioned and distributed on the surface of the matrix material via a cylindrical hole on the grid, then the grid is removed, and the matrix material is subjected to cold press molding by the pressing mould. The device can be used for cold press of green bodies of diamond positioning arranging cutters in multiple layers ,positioning arrangement of diamonds in space can be realized by changing grids, and the device for cold press molding of the diamond positioning arranging cutter is simple in structure, convenient for fast cold press molding, high in efficiency and the like.

Description

technical field [0001] The invention relates to a device and method for cold-press forming a diamond positioning and arranging cutting tool. Background technique [0002] Diamond is recognized as the cutting material with the highest hardness and the best wear resistance. The diamond particles in the commonly used diamond cutting tools are small and large in number, and their distribution cannot be controlled manually, which results in a large random distribution of diamonds and great differences in the performance of diamond cutting tools. A properly designed device and method for directional arrangement of diamonds can effectively solve the problem of distribution of diamonds in a cutting tool. For example, the Chinese invention patent CN101569903A discloses a "method for realizing the directional and orderly arrangement of diamonds in the cutter head", in which a set of diamond directional arrangement devices composed of upper and lower dies and needle bars is designed, ...

AI Technical Summary

Problems solved by technology

For example, the Chinese invention patent CN101569903A discloses a "method for realizing the directional and orderly arrangement of diamonds in the cutter head", in which a set of diamond directional arrangement devices composed of upper and lower dies and needle bars is designed, and relevant The preparation process realizes the directional arrangement of single-layer diamonds, but there are two obvious deficiencies: (1) In real diamond cutting tools, diamonds are often distributed in three-dimensional space, not just in one plane; (2) In the process of diamond orientation, it is necessary to move the needle bar up and down by the height of a diamond. Since the diamond particles are very small, the commonly used diamond particles are all in the range of 35-60 mesh, so the control of the needle bar is not realistic.

Foreign companies such as 3M in the United States (US05092910), Shinhan in Korea (KOREA10-0645748-0000), Ewha (KOREA10-0502573-0000) and other companies have realized the directional arrangement of diamonds in the cutter head and can automate production, but these methods usually It is a systematic project that requires special machinery and equipment, so maintenance and manufacturing costs are high

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