SU1653935A1 - Device for installing grinding disk - Google Patents

Abstract

The invention relates to a machine tool industry, in particular to the processing of materials using an abrasive tool. The purpose of the invention is to improve the accuracy of the installation of the circle in radial runout. The housing 1 has face 2 and cylindrical 3 base surfaces for mounting the grinding wheel 4. The latter is fixed on the adjustment unit 5 consisting of two rings - ring 6 for adjusting the face run and ring 7 for adjusting the radial run. On the ring 6 there is a ring anzvka with expansion screws 10 placed in it. In the ring groove 11, formed on the inner surface of the ring 7. there is an elastic split ring 12. 1 sludge.

Description

The invention relates to the field of machine tools, in particular to the processing of materials using an abrasive tool, and in particular to devices for installing a cutting disk tool.

The aim of the invention is to improve the accuracy of the installation of the circle on the radial runout.

The drawing shows a device, General view.

The device consists of a housing 1, on which the end face 2 and cylindrical 3 base surfaces are made for mounting the grinding wheel 4, mounted on an adjusting unit 5, consisting of two rings - a ring 6 for regulating the end runout and a ring 7 for regulating the radial runout, bonded to each other using screws 8. The circle 4 is fixed with the adjusting unit 5 by nut 9.

On the outer surface of the ring 6 for regulating the mechanical runout, an annular groove is made with the expanding screws 10 located therein.

On the inner surface of the ring 7 for controlling radial runout, an annular groove 11 is made, in which an elastic split ring 12 is located, the surface of which contacts the cylindrical base surface 3, as well as the conical surface 13 with the cone angle 2a of the adjusting screws 14 installed at an angle θ less than 90 ° relative to the axis of the cylindrical base surface and designed to eliminate radial runout.

The device operates as follows.

The grinding wheel 4, mounted in the adjusting unit 5 between the rings to * control the mechanical 6 and radial beats 7 using screws 8, is mounted on the base surface 3 and is pressed against the end surface 2 of the housing 1 using the nut 9.

The radial runout (determined by the indicator) is wound / wound by screwing in the screws 14, which create radial forces on the surface of the elastic split ring 12 with their conical surfaces 13. Under the action of these forces, the ring 12, elastically deformed, bends in the area of action of the screw 14, redistributing the gap between the inner surface of the adjusting ring 7 and the base surface 3. As a result, the radial beating of the circle is eliminated. After eliminating radial runout, the grinding wheel 4 with the adjusting unit 5 is finally fixed with a nut 9.

The mechanical beating of the grinding wheel is eliminated by acting on the wheel body 4 by screwing in the expanding screws 10, which create their axial force by their conical necks transmitted by the wall of the ring 6 of the outer part of the wheel body. Under the action of this force, the body of the circle is elastically deformed, bending at the site of the force from the screws 10. as a result of which the end runout of the circle is eliminated.

Basing the adjustment ring on the cylindrical surface of the housing through an elastic split ring located in the annular groove of the inner surface of the adjustment ring, contacting the surface of the split ring with the conical surface of the adjustment screw installed at an angle less than 90 °. with respect to the axis of the cylindrical base surface, it is possible to find a combination of the angle a and b so that, for any design dimensions of the device for installing the grinding wheel, radial displacements of the working surface of the wheel within a few micrometers using the normal pitch adjusting screws at sufficiently large angles of rotation.

The magnitude of the radial displacements a _ o sin sin cos (d - "b) '. where Sb is the pitch of the screw, mm;

ai ~ cone angle on the screw, deg; th angle of installation of the screw relative to the axis of the cylindrical base surface.

Claims (1)

Claim A device for installing a grinding wheel, comprising a housing with a face and cylindrical base surfaces, an adjusting ring for eliminating a face runout, on the outer surface of which an annular groove is made to accommodate the adjusting screws, and a clamping flange, characterized in that, in order to increase the accuracy of installing the wheel on radial runout, the device is equipped with an adjusting ring for eliminating radial runout and an elastic split ring installed in the internal surface These adjusting rings to eliminate radial run-out of the annular groove and designed to interact with the cylindrical base surface of the housing, the device is also equipped with adjusting screws with a cylindrical base and conical surfaces placed relative to the cylindrical 5 base surface of the housing at an angle not less than the cone angle of the conical surface of the adjusting screw in the holes made in the adjusting ring to eliminate radial runout.