A Circumferential Clamping Device for Extrusion Honing of Drill Bits

Abstract

The invention discloses a circumferential clamping device for the extrusion honing of drill bits. By the device, the surface roughness of the drill bits can be reduced in batches, the surface quality of the drill bits can be greatly improved, and machining efficiency can be greatly improved. The device comprises two abrasive transition plates, a middle clamp, a circumferential clamp and drill bit clamping blocks, wherein the two abrasive transition plates form a vertically communicated inner cavity with the middle clamp; the circumferential clamp is arranged in the inner cavity; square grooves are formed in the periphery of the circumferential clamp; the drill bit clamping blocks are fixedly arranged in the square grooves, and are fixedly arranged on the circumferential clamp through screws, and the drill bits are fixedly arranged in drill bit mounting grooves through screws. The device is simple and compact in structure and low in production cost; by a viscous abrasive cyclically flowing through the surfaces of the drill bits, the surface roughness of the drill bits is reduced, the surface quality of the drill bits is improved, and the drill bits can be ground without damage; the number of the square grooves is controlled to control the number of the drill bits which are simultaneously machined, so that a plurality of drill bits can be simultaneously machined.

Description

technical field [0001] The invention relates to the technical field of drill bit surface treatment, and more specifically relates to a circumferential clamping device for extruding and honing the drill bit surface by using an abrasive fluid medium with a certain flow rate and pressure. Background technique [0002] A drill is a tool used to drill through holes or blind holes in solid materials and to ream existing holes. Commonly used drills mainly include twist drills, flat drills, center drills, deep hole drills and casing drills. The drill bit must go through the process of grinding and polishing before use, and the surface roughness treatment process such as grinding and polishing can make the drill bit achieve better surface quality, so that the drill bit can obtain better drilling effect. The existing way to improve the surface quality of the drill bit is usually to use a grinding wheel for grinding, which has a slow processing efficiency and can only process a single...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high drill bit surface roughness, slow processing efficiency during drill bit processing, and low surface quality of the drill bit obtained by processing, and provides a method that can reduce the drill bit surface roughness in batches and can greatly improve the drill bit surface roughness. Surface quality, and greatly improve the processing efficiency and processing quality of the drill bit extrusion honing circumferential clamping device

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