RU2349427C1 - Device to joint tool modules - Google Patents

Abstract

FIELD: instrument making.

SUBSTANCE: proposed device is intended for tool modules with outer taper interacting with the tapered orifice in the locating part and incorporates a casing to be fastened on the locating part tapered hole bottom. The casing guide slots accommodates cams to interact with the inner wedge surfaces made in the tool module cone shank orifice, cam driving appliances and lubricant-coolant (LC) feed appliance comprising the casing first and second central orifices. The said cam driving appliance represents a hunter's screw, while the LC feed appliance includes additionally a hollow torus-like elastic element with two diametrically opposite ledges arranged in the casing first and second central orifices. The said elastic element enveloped also the rod of the said hunter's screw.

EFFECT: higher efficiency of cooling ensured by LC channel gradient junctions.

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Description

The invention relates to the field of metal cutting, tooling CNC machines.

A device is known for connecting tool modules having an outer cone for interacting with a conical hole in the base part, comprising a housing for securing to the bottom of the conical hole of the base part, and in the guide grooves of which are mounted cams for interacting with internal wedge surfaces in the hole of the conical shank of the tool module, means for moving the cams and means for supplying a cutting fluid to the tool module, incl. The fluttering first and second central openings of the housing (see RU 2288811, B23 B 31/107, 2006).

The known device has insufficient efficiency when using coolant in the form of fog due to sharp bends in the channel for supplying coolant.

The objective of the invention is to increase the efficiency of use of the device due to the implementation of the channel for supplying coolant with smooth transitions.

The problem is solved in that the device for connecting tool modules having an outer cone for interacting with a conical hole in the base part, comprising a housing designed to be fixed at the bottom of the conical hole of the base part, and in the guide grooves of which are mounted cams for interacting with internal wedge surfaces in the hole of the tapered shank of the tool module, means for moving the cams and means for supplying a cutting fluid to the instrument module, including the Central hole of the housing.

In accordance with the invention, the means for moving the cams is made in the form of a differential screw, and the means for supplying the coolant additionally includes a hollow element in the form of a torus of elastic material having two diametrically opposite protrusions located in the first and second central holes of the housing covering the rod of the said differential screw.

The proposed device is presented in figures 1-4, in which:

figure 1 shows an axial section of a device for connecting instrument modules;

figure 2 shows a section aa in figure 1;

figure 3 shows a top view of a hollow element in the form of a torus;

figure 4 shows a side view of figure 3.

The device is designed to connect the tapered shank 1 of the tool module 2 with the tapered bore 3 of the base part 4 (spindle or tool holder of the machine) and contains a housing 5 mounted and secured to the bottom of the tapered bore 3.

In the guide grooves 6 of the housing 5 with the possibility of movement, cams 7 are installed, designed to interact with the internal wedge surfaces 8 in the inner cavity of the tapered shank 1 of the tool module 2.

Means for moving the cams 7 is made in the form of a differential screw 9.

The device also comprises a coolant supply means located in the housing 5, including the first 10 and second 11 central openings of the housing and the hollow element in the form of a torus 12 made of an elastic material (e.g. rubber) having two diametrically opposite protrusions 13 located around the differential screw screw 9 in the first 10 and second 11 central holes of the housing 5.

The device operates as follows. Before installing the taper shank 1 of the tool module 2 in the taper hole 3 of the base part 4, the cams 7 are pulled to the axis of the housing 5. This position of the cams is shown in the upper part of FIGS. 1 and 2. After installing the shank in the taper hole, the cams 7 are moved apart by the differential screw 9 to stop in the inner wedge surface 8 in the hole of the shank 1. This position of the cams is shown in the lower part of figures 1 and 2. After fixing the tool module during processing, the coolant is supplied from the machine through the channel, bath with the first Central hole 10, the cavity of the element 12 and the second Central hole 11. Smooth transitions resulting from the execution of the hollow element in the form of a torus 12, allow the use of coolant in the form of fog, which increases the efficiency of use of the device.

Claims (1)

A device for connecting tool modules having an outer cone for interacting with a conical hole in the base part, comprising a housing for fastening on the bottom of the conical hole of the base part, in the guide grooves of which are mounted cams for interacting with internal wedge surfaces in the hole of the conical shank of the tool module, means for moving the cams and means for supplying a cutting fluid to the tool module, including the second and second central holes of the housing, characterized in that the means for moving the cams is made in the form of a differential screw, and the means for supplying the coolant further includes a hollow element in the form of a torus of elastic material having two diametrically opposite protrusions located in the core of the said differential screw the first and second central holes of the housing.

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