JPH0359109U

JPH0359109U -

Info

Publication number: JPH0359109U
Application number: JP11882689U
Authority: JP
Priority date: 1989-10-11
Filing date: 1989-10-11
Publication date: 1991-06-11
Anticipated expiration: 2004-10-11
Also published as: JPH0748326Y2

Description

[Brief explanation of drawings]

第１図はこの考案の実施例を示す装置全体の縦
断面図、第２図はその−線断面図である。１…補正手段、２…回転切削手段、３…回転軸
、４…刃具の保持体、５，２２…回転筒体、６，
７…サーボモータ、１０…段替え手段、３１，３
２，３３…微少調整領域、４０…刃具。 FIG. 1 is a vertical cross-sectional view of the entire device showing an embodiment of this invention, and FIG. 2 is a cross-sectional view taken along the line -2. DESCRIPTION OF SYMBOLS 1... Correction means, 2... Rotary cutting means, 3... Rotating shaft, 4... Cutting tool holder, 5, 22... Rotating cylinder, 6,
7... Servo motor, 10... Stage changing means, 31, 3
2, 33... Fine adjustment area, 40... Cutting tool.

Claims

[Claims for Utility Model Registration] 1. A rotating cylinder, a rotating shaft penetrating through the rotating cylinder so as to be movable in the axial direction, and a cutting tool attached to the tip of the rotating shaft via a holder. a rotary cutting means, a correction means for adjusting the movement of the rotary shaft in its axial direction, a step changing means for moving the correcting means forward and backward in the axial direction, and a rotary cutting means and a step changing means for holding the rotary cutting means and the step changing means; The holding body is held by the rotary cylindrical body so as to be movable back and forth in the direction orthogonal to the axis, and the rotary shaft is provided with a cutting tool according to the amount of wear of the cutting tool. Multiple fine adjustment areas are formed in the axial direction to increase the amount of protrusion of the fine adjustment area, and each fine adjustment area in each stage is set to correspond to a different bore diameter of the workpiece, and the movement between these fine adjustment areas is performed by changing stages. 1. A variable cutting edge diameter cutting device, characterized in that the means is configured to perform the adjustment by moving a correction means, and the correction means performs movement within a fine adjustment area. 2. An inclined surface inclined in the axial direction is formed in each fine adjustment area at the tip of the rotating shaft, and a biasing means is provided so that the holder is elastically pressed onto this inclined surface, so that the rotating shaft is The protruding amount of the cutting tool is configured to increase or decrease by moving in the axial direction, and the correction means includes a cylinder and a servo motor that regulates the position of the piston rod, and the base end of the rotating shaft is connected to the cylinder. 2. The variable cutting edge diameter cutting device according to claim 1, wherein the cutting device is coaxially connected to a piston rod, and the movement of the piston rod is regulated by a screw shaft operated by a servo motor. 3 The stage change means has a servo motor having a screw shaft and a rail, and a part of the correction means is screwed onto the screw shaft, so that the correction means is movable in the axial direction along the rail. The variable cutting edge diameter cutting device according to claim 1 or 2, wherein the variable cutting edge diameter cutting device is installed.