CN2142379Y

CN2142379Y - Quick diameter changing sleeve

Info

Publication number: CN2142379Y
Application number: CN 92221767
Authority: CN
Inventors: 刘顺扬
Original assignee: Chongqing No2 Machine Tool Accessories Factory
Current assignee: Chongqing No2 Machine Tool Accessories Factory
Priority date: 1992-11-21
Filing date: 1992-11-21
Publication date: 1993-09-22
Anticipated expiration: 2002-11-21

Abstract

The utility model relates to a quick diameter changing sleeve. The utility model is characterized in that the quick diameter changing sleeve comprises a diameter changing sleeve 1, and a top rod 2 which is inserted in the inner hole on the tail of the diameter changing sleeve 1; the surface of the periphery of the diameter changing sleeve is a Mohs cone, the inner cavity of the diameter changing sleeve is a cylindrical hole / Mohs conical hole, and three channels of grooves which present 120 DEG distribution can be arranged on the part of the Mohs cone. The handle of a cutter can be arranged in the conical hole of the diameter changing sleeve; when the handle of the cutter needs to be replaced, the handle of the cutter can be pushed out through the top rod to avoid the trouble that the original sleeve of the cutter needs to be beaten by the drill key or the hammer when the original sleeve of the cutter is replaced.

Description

Quick diameter changing sleeve

The utility model relates to the accessory of clamping cutter in a kind of machining, particularly relate to a kind of at car, mill, clamping taper-shank drill on the drilling machine, the accessory of milling cutter.

On lathe when processing hole of different size or groove, must change the cutter of different sizes, known method is to insert in the broach shell afterbody groove with drift, beat with hammer, cutter can be taken out and then reaches the purpose of changing suitable cutter, this method is not only time-consuming, effort, inefficiency, and to all producing bad influence the service life of machine tool chief axis precision and broach shell.

The purpose of this utility model is must not beat the quick change drill holder that can take off cutter fast.

The purpose of this utility model is achieved in that promptly: this quick change drill holder is characterized in that a drill holder and a push rod that is inserted in its afterbody hole.The inner chamber of drill holder is cylindrical hole/Morse's cone hole, outer peripheral face is the Morse's cone body, the Morse's cone portion of this external drill holder has three roads and is 120 ° of uniform grooves, in use, only need handle of a knife is inserted chamber within the drill holder, drill holder is inserted in machine tool chief axis or the tailstock hole again and tighten up, can cut, when need are changed different cutter, only need take off drill holder, and cutter be ejected by push rod.

The utility model compared with prior art must not beat, and can change cutter smoothly efficiently, can not damage the precision of machine tool chief axis or tailstock, the service life of having improved drill holder simultaneously.

Concrete structure of the present utility model is provided by the following drawings,

Fig. 1 is first embodiment of the present utility model;

Fig. 2 is second embodiment of the present utility model.

Be further described below with reference to concrete structure of the present utility model.

Referring to Fig. 1, the utility model quick change drill holder is made up of a drill holder 1 and a push rod 2 that is inserted in its afterbody hole.The outer peripheral face of drill holder is the Morse's cone body, and inner chamber can be cylindrical hole or Morse's cone hole.

Referring to Fig. 2, the difference of this embodiment and first embodiment is: on the first embodiment basis, have three roads in the Morse's cone portion of drill holder 1 and be 120 ° of uniform grooves, the groove tail respectively has a circular hole, concentrates to avoid stress.

Claims

1, a kind of quick change drill holder is characterized in that a drill holder (1) and a push rod (2) that is inserted in its afterbody hole.

2, according to the described quick change drill holder of claim 1, the outer peripheral face that it is characterized in that drill holder (1) is a Morse's cone body, and inner chamber is cylindrical hole/Morse's cone hole.

3, according to claim 1,2 described quick change drill holders, it is characterized in that: the Morse's cone portion of drill holder has three roads and is 120 ° of uniform grooves.