SU1399017A1 - Chuck for automated securing of tool - Google Patents

Abstract

The invention relates to a machine tool industry, in particular, to devices for automatically fastening a tool when working on a milling machine, drilling and other machines. The aim of the invention is to reduce the auxiliary time when changing tools. The cartridge includes a body I with a conical: bridge 3, on which the head is fastened. In the axial hole of the cartridge there is a sleeve 6 with an opening, under the tool shank. Cams 13 and balls 14 are installed in the radial holes of the sleeve and housing. An elastic ring 9 and two sleeves adjoining along a spherical surface are installed on the housing, one of which interacts with the conical surface with the balls and the other with the elastic ring 9. When installing the cartridge in the spindle resilient ring 9 rests on the splines 15 at the spindle nose. The tool is pre-clamped by an elastic element 17 installed in the bore 16. The body is pre-fastened in the spindle by elastic elements installed in grooves on the housing flange, cooperating grooves on the J 5 end veneers while tightening the cartridge into the spindle ring 9 is deformed, resting against the keys, and transmits the clamping force to the cuff through the bushings and balls. hp f-ly, 3 ill. (L

Description

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The invention relates to machine tools cipdpiinio, in particular (devices for devices; UIH tool fastening when working on freerny, boring and other machines).

The purpose of the invention is to reduce the time required for changing a tool by using a vincTpy clamping mechanism in the machine spindle and improving serviceability by pre-fixing the cartridge in the machine spindle and tool in the cartridge.

FIG. the cartridge, longitudinal section, general view is shown; in Fig.2, the section A-A in Fig. 1; on fig.Z - section bb in figure 2.

The cartridge includes a housing 1 with grooves 2 on a flange and a conical tail tail 3, designed to be fastened to the 11th bar | 1el 4 of the machine. The shank 3 is fixed to the head 5, designed for c-coupling with a vcTpoiicTBOM gripping machine clamping mechanism.

In autumn (1M hole in the housing 1, the insert sleeves the sleeve 6 with the axial hole under the xBocTOfjuK 7 tool and the radial holes (holes. On the thread of the mouth of the mouth) is in contact with the end face of the sleeve 6, the nut of the tool clip, made in the form of a resilient ring 9 freely mounted on the outer surface of the body 9, a back sleeve 10 and a conical surface 12 adjoining it on the spherical surface of the front sleeve 11 with an internalHHefi 12, as well as 6 cylindrical cams 13 installed in radial holes mouth installed in the radioshne holes of the ball housing 1A.

When this elastic ring 9 is installed between fixed at the end of the spindle pins 15 and the end of the rear sleeve 10, and the balls are installed between the rear torps of the Cam 13 and the conical surface 12 of the front sleeve P. At the end of the nut 8, facing the end of the sleeve 6, the bore 16, in which the elastic element I7 is installed in the form of a bracket with radius sections 18 for contacting with the tool shank.

In the grooves 2 on the flange of the housing are attached to the end of the flange 1 and 1 of the curly figured elastic elements 19, designed to contact

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Side with 1 grooves 20, made on the pins 15. In the case there is an adjusting screw 21 for adjusting the quality of the drill.

The tool is inserted into the opening of the sleeve 6 up to the stop in the screw 21. At the same time, it is secured against falling out by the elastic element 17.

The cartridge is installed in the conical hole of the spindle and is kept from falling out of it by elastic elements 19, which, tightening the housing 1 into the spindle, partially deform the elastic ring 9. At the same time, the spherical surface of the sleeve 10 and 11, the balls 14 and the cams 13 move pre-clamping drill bit.

When the tool clamping mechanism is turned on, its gripping device, interacting with the head 5 of the stem 3 of the housing 1, pulls the latter into the spindle. During the deformation process, the ring 9 transmits through the sleeve 10, 11 and the balls 1A a force to the cams 13, which finally clamp the tool.

The force of engagement of the elastic shaped plates is significantly greater than the force from the elastic element 17 holding the tool in an unlatched state, thus preventing the cartridge from falling out of the spindle when pulling the tool out of the sleeve 6. When changing the tool, the tool button turns on the tool being pressed, the force from the body of the cartridge is removed and the elastic ring 9 returns to its original position by pre-clamping the tool under the action of the elastic elements 19.

Claims (2)

Invention Formula I. Cartridge for automated fastening of a tool, comprising a housing with grooves on the flange and a tapered shank with elements for tightening it into the machine spindle, a sleeve installed in the axial opening of the housing with an axial hole under the tool shank mounted on the housing thread with the possibility of interaction with the front surface bushings, a nut, and a tool clamping mechanism, characterized in that, in order to shorten the time when changing tools, the bush of the FioHJien mouth. X) iiyce fsl yrotsgpsho and dce- B (M direction, ubiiui / inefia and p and p; 1 c on 1, and clamping mechanism tool;) type of installed on the outer surface of the casing of the elastic ring, rear hub and oppression of the elastic ring, back sleeve and oppression of the body of the elastic ring, rear hub and oppression of the body of the elastic ring, rear hub and oppression of the body of the elastic ring, rear hub and oppression; the spherical surface of the front sleeve with an internal conic surface, as well as the hydraulic knuckles and balls installed in the radial holes of the sleeve are installed in the radial holes made in the housing and coinciding with the OTBCpcTHHsfH radial holes in the sleeve, while the elastic K performed by the protrusions on the spindle butt and the rear bush, and sharks are installed between the cam ridges and the conical upper gland of the front hub, at the nut end facing the end of the hub, a bore is made, which is installed: the elastic element inserted into the cartridge is used to interact with the tool shank. 2. Chuck pop. 1, distinguished by the fact that, in order to improve serviceability, the cartridge is equipped with elastic elements fixed in the slots of the housing flange and is predetermined; spindle. R /five /five ud 2 Rig.