Small-bore gun drill edge grinder

Abstract

The invention provides a small-bore gun drill edge grinder which comprises a motor, a support body, a grinding wheel, a sharpening turntable, a supporting workbench, a rotating shaft, a guide seat sleeve and a cutter clamping body, the grinding wheel is arranged on the top side of the support body, and the motor in control connection with the grinding wheel is arranged on the bottom side of the support body; the upper portion of the supporting workbench is rotationally connected with a knife sharpening rotating disc through a rotating shaft, a plurality of guide seat sleeves are evenly arranged on the knife sharpening rotating disc in the circumferential direction, the included angles between the guide seat sleeves and the knife sharpening rotating disc are different, and detachable knife clamping bodies are arranged in the guide seat sleeves. And the guide seat sleeve moves above the grinding wheel along with the rotation of the knife sharpening turntable, so that a knife clamped by the knife clamping body is ground by the grinding wheel. The tool is specially used for sharpening the gun drill blade with the small hole smaller than phi 5mm. The structure is more compact, clamping is convenient and reasonable, the clamp is easy to adjust, cutter sharpening of all angles can be completed after one-time clamping, and machining is time-saving. And the processed drill edge is high in strength and good in precision.

Description

technical field [0001] The invention relates to the field of gun drill sharpeners, in particular to a small-diameter gun drill sharpener. Background technique [0002] With the rapid development of processing and manufacturing technology, there are many machined workpieces that need to process very small diameter deep holes. For the small-aperture solid carbide single-edged gun drill used in its processing, the grinding shape of the nose has an impact on the tolerance of the small hole, the formation of chips, the cooling pressure flow rate and service life, the deviation of the center line and the surface quality. , that is, the sharpening shape of the nose of the small-aperture gun drill determines the quality range of the workpiece to be processed, especially in the processing of deep hole drilling machines. If batch processing small hole ￠5mm diameter workpieces or large workpieces, a special small aperture sharpening machine is required for grinding. In the current re...

AI Technical Summary

Problems solved by technology

In the current related industries, due to the design constraints of various workpiece sizes, there are almost no relevant special-purpose small-aperture grinding machines

Therefore, the sharpening of the nose of the current small-aperture gun drill sharpening is almost entirely based on the experience of the operator and the naked eye observation, which is likely to cause a large deviation of the sharpening angle, which affects the processing accuracy of the above-mentioned small-aperture

[0003] At present, the grinding range of sharpening machines on the market is mostly around ￠5-￠40mm, and the small aperture below ￠5mm is almost rare, and the sharpening machines on the market are mainly integral structures, which require a certain space for installation. , and due to the jig design of the sharpening machine itself, the professional technical requirements for the operator are relatively high, and it is not easy for beginners to get started

This also limits the workpiece machining time schedule

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