Self-cooled hob capable of preventing chips from remaining

Abstract

The invention belongs to the technical field of metal cutting tools, and relates to a self-cooled hob capable of preventing chip residues. The self-cooled hob is characterized by comprising a hob bodyand a rotary mounting head, wherein a first installation end and a second installation end are arranged at the two ends of the hob body, a center hole is formed in the hob body, a spiral blade is fixedly arranged in the center hole, a channel is formed in the first mounting end and communicates with the center hole, through holes are uniformly formed in the circumferential side of the first mounting end and communicate with the channel, a rotary connector is rotationally mounted at the first mounting end and wraps the through holes, a connecting port is formed in the rotary connector and communicates with the channel through the through holes, a pressure relief opening is further formed in the rotary connector, a convex ring and a pressure relief valve are arranged in the pressure reliefopening, and the pressure relief opening communicates with the channel through the through holes. According to the hob, cuttings at the bottom of the cutting edge can be washed away, the influence ofcutting heat on hobbing can be reduced, the temperature of the hob is reduced, and the service life of the hob is prolonged.

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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