Double-face chamfering and drilling tool

Abstract

The invention discloses a double-sided chamfering drilling tool, which comprises a cutter body, a chamfering blade and a drilling blade, the end of the cutter body is provided with a blade platform, and the end of the cutter body is provided with a blade Install the horizontal hole, the right end of the cutter body is provided with a clamping part, the inside of the cutter body is provided with an axial hole, one end of the extension rod is positioned and installed in the axial hole by a set screw, and the other end of the extension rod is connected with a spring , the spring is connected with the limit pin; the drilling blade is mounted on the blade platform through a compression screw; a groove is provided in the longitudinal direction of the chamfering blade, and the lower end side wall of the groove is a first inclined plane The chamfering insert has a front chamfering edge and a reverse chamfering edge on the cutting surface. The chamfering insert is installed in the horizontal hole of the insert, and the limit pin is inserted into the groove to lock the chamfering insert. Lock and limit. The beneficial effects of the invention are: convenient processing, double-sided chamfering processing, high processing efficiency and good processing quality.

Description

technical field [0001] The invention relates to the technical field of structural design of metal cutting tools, in particular to a double-sided chamfering drilling tool. Background technique [0002] In the processing of mechanical parts, hole machining generally requires hole chamfering. At present, there are three main processing methods: the first is to drill the hole first, and then change the chamfering knife to chamfer the holes at both ends; the second is to drill After the hole is made, use a portable chamfering knife machine to chamfer the holes at both ends; the third is to use the two fixed blades at the rear end to interpolate and mill the holes at both ends after drilling. The first processing method has the problems of tool change and secondary clamping, which not only has low production efficiency, but also easily causes chamfering and drilling without concentricity, and the rate of defective products is high; the second processing method uses a portable ch...

AI Technical Summary

Problems solved by technology

The first processing method has the problems of tool change and secondary clamping, which not only has low production efficiency, but also easily causes chamfering and drilling without concentricity, and the rate of defective products is high; the second processing method uses a portable chamfering machine for chamfering. The surface quality cannot meet the requirements of high-quality products; the third processing method requires CNC machine tools to chamfer the holes at both ends by interpolation milling. The processing efficiency is not high, and the tool rigidity is poor, which affects the processing surface. quality

Especially when the chamfering accuracy and efficiency are high, none of the above three processing methods can better meet these two requirements at the same time

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