A self-cooling hob to prevent chips from remaining

Abstract

The invention belongs to the technical field of metal cutting tools, and relates to a self-cooling hob that prevents chips from remaining. It is characterized in that it includes a hob body and a rotating installation head; At the installation end, a central hole is opened in the hob body, and a spiral blade is fixedly arranged in the center hole; a channel is opened inside the first installation end, and the channel communicates with the center hole; through holes are evenly opened on the circumferential side of the first installation end, and the through hole It communicates with the channel; the rotating connector is rotatably installed on the first installation end, and the rotating connector covers the through hole; the connecting port is provided on the rotating connecting head, and the connecting port communicates with the channel through the through hole; the rotating connecting head is also provided with a leak A pressure port and a pressure relief port are provided with a convex ring and a pressure relief valve, and the pressure relief port communicates with the channel through a through hole. The invention can not only flush away chips at the bottom of the cutting edge, but also reduce the influence of cutting heat on gear hobbing, reduce the temperature of the hob, and prolong the life of the hob.

Description

technical field [0001] The invention belongs to the technical field of cutting tools for metal cutting, and in particular relates to a self-cooling hob which prevents chips from remaining. Background technique [0002] When hobs are used to process workpieces such as gears and sprockets, defects such as high tooth surface roughness and strain often occur, resulting in waste or substandard products. The reason for this phenomenon is that chip removal is not smooth during machining, and a large amount of chips are deposited in the bottom of the cutting edge, forming built-up edge. A common solution is to use a large amount of cutting fluid to flush the hob during machining with the hob, and discharge large and small chips along the chip groove to avoid built-up edge. However, in the process of flushing, it is difficult to flush out the chips at the bottom of the cutting edge, and there will still be residues, and the cutting fluid often has problems such as bacterial growth, ...

AI Technical Summary

Problems solved by technology

However, in the process of flushing, it is difficult to flush out the chips at the bottom of the cutting edge, and there will still be residues, and the cutting fluid often has problems such as bacterial growth, complicated maintenance, various varieties, high cost, etc., and the chip removal and heat dissipation performance cannot be ideal. state

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