IT9030664U1 - GRAFT FOR TOOLS FOR ROTATING AND NON-ROTATING HEADS, FOR THE PROCESSING OF CERAMIC, GLASS AND STONE MATERIALS - Google Patents

Description

TITLE:

COUPLING FOR TOOLS FOR ROTATING, OSCILLATING AND NON-ROTATING HEADS, FOR THE PROCESSING OF CERAMIC, GLASS AND STONE MATERIALS

SUMMARY:

It is a new coupling for the wheels of the rotating heads, oscillating and not, for the processing of ceramic, glass and stone materials.

The graft is equipped with several guides on which the tool is positioned; the tool can be placed at different distances from the axis of rotation of the head thus working on different surfaces and with optimal diameters.

DESCRIPTION:

The present invention generally refers to the sector of rotating grinding wheels for polishing ceramic, stone and glass materials and in particular to couplings for abrasive holder tools.

Rotating wheels are known which are equipped with four or more arms each one holding a coupling provided with a dovetail seat into which the abrasive holder tool is inserted.

These grafts do not allow to increase or decrease the working surface of the grinding wheel. To vary the diameter it is therefore necessary to use extensions or reducers. This type of solution has the drawbacks of the inconvenience of installation and of the vibrations that are generated, with consequent instability of the tools.

The invention described in the present patent solves these problems because with the same machine it is possible to work on different diameters without the need to interpose any extension or reducer between the tool and the machine.

The invention consists of a tool holder block and the relative abrasive holder tool.

On the tool holder, which is fixed on the arms of the rotating head, there are two or more guides designed to support the tools and where said guides have converging sides.

These converging guides are on different planes and are created from trunks of the same cone; they are therefore placed one above the other and are translated between them in such a way that by virtually extending the converging sides, the meeting points do not coincide, on the horizontal plane, but are slightly offset.

The abrasive holder tool that is inserted on these guides is also obtained from the same cone; and therefore it can be inserted in any guide placing itself at different distances from the rotation axis.

The tool is equipped with an elongated central body, with overhanging protrusions that allows it to be inserted up to the innermost guide.

The length of the tool will be sized in order to guarantee a perfect coupling in any position. The abrasive holder tool can thus be in various positions and therefore at various distances from the axis of rotation of the head, describing, on the work surface, different circular crowns more or less large than that described by the normal coupling. With the same tool it is therefore possible to perform a machining with different diameters depending on the guide in which it has been inserted.

The working diameter is chosen according to the type and hardness and size of the material to be processed.

With this type of coupling it is easy to vary the diameter of the working crown by simply moving the tool from one guide to the other.

The coupling for tools for oscillating and non-oscillating rotating heads, for the processing of ceramic, glass and stone materials, is equipped with several guides into which the tool is inserted and where said guides are overlapped and advanced between them or back so that the tool is inserted in a different position with respect to the center of rotation of the head.

By way of non-limiting example, a practical embodiment of the invention is illustrated.

n fig. 1 the three cones (a), (b), (c) are shown, shifted between them and at different heights, from the profile of which the three guides (A), (B), (C) are obtained which, on the same tool holder (X), they are placed at different heights.

Fig. 2 shows the tool (D) which is composed of an abrasive part <D1>, which can be for example diamond-coated, and an upper abrasive-holder part (D2), which is suitable to be inserted on the coupling (X) fixed to the arm (F) of the rotating head (indicated by the dotted line). The upper part (D2) is equipped with a central body and two protrusions (D3) designed to be inserted in the guides (A), (B), (C).

Fig. 3 shows the various positions in which the CD tool can work by inserting it into the various guides (A), (B), (C); in the first position the tool CD) is positioned on the innermost guide (A) and describes the smallest circular crown (i); in the second position the tool (D) is inserted on the intermediate guide (B) and the circular crown (h) described by the tool is the intermediate one; in the third position the tool (D) is placed on the lowest guide (C) and describes the largest crown (l).

These are the schematic modalities sufficient for the skilled person to realize the invention, consequently, in concrete application, there may be variations without prejudice to the substance of the innovative concept.

Therefore, with reference to the above description and the attached tables, the following are expressed

Claims (3)

CLAIMS 1) Coupling for tools for rotating heads, oscillating and not, for the processing of ceramic, glass and stone materials, characterized by the fact of having two or more seats into which the tool is inserted and where said seats overlap each other and staggered so that the abrasive holder tool can be inserted in two or more different positions with respect to the center of rotation of the head. 2) Coupling as per claim 1, characterized by the fact of having two or more guides with converging walls into which the tool is inserted and where said guides have the same convergence angle and are superimposed and staggered so that the The abrasive holder tool can be inserted in a different position with respect to the center of rotation of the head. 3) Coupling for tools for rotating heads, oscillating and not, for the processing of ceramic, glass and stone materials, as per claim 1, 2, characterized by the fact that the abrasive holder tool is equipped with an elongated central body with overhanging protrusions of shape suitable to be inserted in any guide, (upper, intermediate and lower), of the graft. 45 Coupling for tools for rotating heads, oscillating or not, for processing ceramic, glass and stone materials, as per claims 1, 2, 3, characterized in that the tool can be diamond coated. 5) Coupling for tools for rotating heads, oscillating and not, for the processing of ceramic, glass and stone materials, as per all the preceding claims characterized by the fact that its production, its marketing are protected by this patent for model utility, all as described and illustrated.