SU1066755A1 - Chuck for securing end tool - Google Patents

Abstract

MACHINE FOR FITTING THE END TOOL, comprising a body with a shank intended for installation in the machine spindle socket, a tool sleeve installed in the body with axial movement, a mandrel with a tool holder fixed in the tool sleeve socket, and mechanisms for removing the spindle and mandrel from the tool a tool sleeve, characterized in that, in order to simplify the structures and increase reliability, each of the 5-sided removal mechanisms is made in the form of two sleeves connected A threaded joint with one sleeve mounted on the body (on the mandrel) fixed against rotation 0 with the possibility of axial movement and engagement with the machine spindle (with the tool sleeve), and the other mounted on the case (on the mandrel) with possible rotation and fixed in wasp (L direction).

Description

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The invention relates to metalworking, in particular to fixtures for end fixing and finishing machines on drilling machines.

The known chuck for fastening the end tool includes a body with a shank, designed for installation in the spindle slot of the machine tool, instrumental-1 sleeve installed in the body with axial movement, a mandrel with a tool holder fixed in the tool hub, and a mental sleeve, and removal mechanisms housings from; spindle and mandrel from instr ment-noy sleeve Ull.

The disadvantages of the known cartridge are the design complexity and low reliability.

The purpose of the invention is to simplify the design and increase the reliability of the cartridge.

This goal is achieved by the fact that in the chuck for fastening the end tool, comprising a body with a shank intended for installation in the spindle slot of the machine, an axial bushing mounted in the body with the possibility of axial movement, a mandrel with a tool slot 1ent fixed in the tool slot bushings, and mechanisms for removing the casing from the spindle and the mandrel from the tool hub of the mental bushing, each of the mentioned mechanisms is implemented in the Bi-schE of two bushings connected by means of a threaded connection, one ulka mounted on the housing (mandrel) fixedly against rotation n for axial movement with the spindle and sta1p reacting a (a tool sleeve), and the other mounted on the housing {mandrel) rotatably n figssirovana in autumn direction.

FIG. 1 shows a general view of the stalemate, a longitudinal section in FIG. 2 is a section A-A in FIG. 1.

The cartridge for the fastener and the end tool includes a housing 1 with a tapered shank 2 for installation in the machine spindle. In the hole 3 there is a tool set for a single pump 4 with a cutter F1 a hole for the mandrel 5 with a tapered hole for the tool shank.

A removal mechanism is installed in the upper part of the body, consisting of a sleeve b, fixed against axial movement by balls or a roller — r. 7, through thread the sleeve b is connected with the sleeve 8, which is mounted on the cylindrical surface of the case 1 and fixed against rotation key 9.

In the middle part, an adjusting nut is installed on the thread of the housing; the nut 10 is secured by a lock nut 11 in the transverse window of the tool hub 4; a cracker 12 is installed with two diametrically located thread sections connected with the threaded adjusting nut 10. The cracker 12 is located in the through slot 13, which is made in the housing, which excludes the possibility of turning the tool sleeve 4. The mandrel 5 is equipped with the same design mechanism for removal. KciK and mechanism installed on the body.

The cartridge works as follows.

A chuck for fastening the end tool is inserted into the hole w; with the shank 2, into the hole w;

To adjust the axial position of the tool, the lock nut 11 is loosened and the adjusting nut 10 rotates. At the same time, the nut i2 moves along the groove 13 and with it the tool sleeve 4 with the mandrel 5 in the hole 3. After tightening the lock nut 11, the cartridge is ready for operation.

To remove the mandrel 5 with the tool, the sleeve 6 must be rotated from the cartridge. The sleeve 8 moves along the key 9 and comes into contact with the end of the tool sleeve 4. The mandrel 5c is removed from the tool with the tool. Rotation of the sleeve b in the opposite direction 8 returns to the initial position, ensuring the possibility of installing the mandrel with the tool in the cartridge.

If it is necessary to remove the cartridge from 111p: machine index, rotating the sleeve b of the upper removable mechanism. When the chuck is removed from the machine spindle, rotating the sleeve 6 in the opposite direction removes the removable mechanism to its original position. The work of the parts is similar to that of the removable mechanism.

The positive effect of using the invention is provided by simplifying the design of the cartridge and increasing its reliability.

SUL

Claims (1)

CARTRIDGE MOUNTING end tool, comprising a housing with a shaft, intended to be fitted in the spindle socket, tool sleeve mounted in the housing for axial movement, the mandrel with the socket under the tool _g secured in the nest tool sleeve and mechanisms detachably housing of the spindle and the mandrel from a tool sleeve, characterized in that, in order to simplify the designs and increase reliability, each of the mentioned removal mechanisms is made in the form of two bushings connected by means m of a threaded connection, while one sleeve is installed, on the body (on the mandrel) is fixed against rotation and with the possibility of axial movement and interaction with the machine spindle (with the tool sleeve), and the other is mounted on the body (on the mandrel) with a possible rotation and fixed in, axial direction.