Low-frequency axial vibration drilling knife handle

Abstract

The invention discloses a low-frequency axial vibration drilling knife handle. The low-frequency axial vibration drilling knife handle comprises a taper handle, one end of a straight handle is installed inside the taper handle far away from a taper tip, the outer side, close to the end part of the taper handle, of the straight handle is provided with at least two angular contact ball bearings, theangular contact ball bearings are located on the two sides of a boss of the straight handle, a vibrating main shaft is installed in the straight handle, a wear-resistant transmission sleeve is arranged on the outer side of a special-shaped shaft of the vibrating main shaft in a sleeve mode, the wear-resistant transmission sleeve is connected with the inner side of the straight handle, a radial cylindrical hole is arranged in a vibration main shaft body close to the bottom of the special-shaped shaft, an eccentric shaft assembly is installed in the cylindrical hole, a taper hole is formed towards the vibration main shaft body along the other end of the vibration main shaft, an elastic chuck is arranged in the taper hole, a drill bit is clamped in the elastic chuck, a cylindrical roller bearing is installed on the outer side of the other end of the vibration main shaft, a locking nut is installed on the outer side of the end part of the vibration main shaft, and the end part of the elastic chuck is clamped in the locking nut. According to the low-frequency axial vibration drilling knife handle, the rotary motion of the machine tool main shaft is converted into rotary motion and low-frequency axial vibration of the vibration main shaft, and the universality is wide.

Description

technical field [0001] The invention belongs to the technical field of machining drilling equipment, and relates to a low-frequency axial vibration drilling handle. Background technique [0002] According to statistics, the amount of metal removal in hole processing accounts for about 1 / 3 of the total removal amount in cutting processing, and the common method of hole processing is drilling. With the continuous development of material technology, traditional drilling processing technology is difficult to meet the deep processing of complex materials of workpieces, and it is also accompanied by some problems: poor quality of workpieces and short service life of tools. In order to solve the above problems, vibration drilling technology was born. [0003] Vibration drilling is to add a regular vibration to the drill bit or the workpiece during the drilling process, so that intermittent contact occurs between the drill bit and the workpiece, and the cutting parameters change pe...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a low-frequency axial vibration drilling tool holder, which solves the problems in the prior art that the cost of vibration drilling equipment is high and the machine tool needs to be greatly modified

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