SU428654A1 - Device for supporting and rotating workpieces - Google Patents

Abstract

1. A BASK DEVICE AND ROTATION OF DETAILS, such as bodies of revolution with a flat base end, mounted on radial bearings, carrying a spindle rotating in bearings, characterized in that, in order to reduce axial beats, the device provided with a plane-parallel disk, self-aligning between the supports and the bearing clamping element with a leading end, and the disk is connected to the spindle through the diaphragm. 2. The device according to claim 1, characterized in that the supports are made by aerostatic. 3. The device according to claim 1, characterized in that the supports We are hydrostatic.

Description

(Ls

A device for positioning and rotating parts of a type of rotating bodies with a flat base end is known, which are mounted on radial bearings and carry a spindle rotating in bearings.

The purpose of the invention is to reduce axial beats. For this, it is provided with a plane-parallel disk, self-aligning between the spores and the bearing clamping element with the leading end, the disk being connected to the spinning section through a diaphragm. Supports can be made hydrostatic or a; zrostaticheskimi.

The drawing shows the proposed device.

A sleeve 2 is fixed in the housing 1, in which a shaft 5 is mounted on bearings 3 and 4 of the normal accuracy class. A shaft 7 is connected to the shaft 5 by means of a plate diaphragm, which is made of antifriction material (bronze or aluminum and on which a clamping element is fixed, for example, a magnetic cartridge 8 with a permanent magnet 9 and a leading end 10. On the sleeve 2 fixed flat end supports 11 and 12, separated by a spacer 13. In the body of the supports 11 and 12 are provided annular channels 14 and 15, - closed by covers 16 and 17 and St. airways h Res channels 18 and 19. The annular channels 14 and 15 soe-. dineny calibrated holes 20 and 21 with the surfaces of the bearings 11 and 12 facing the drive housing 7.

1 is rigidly connected to a yoke 22 carrying the fixed radial bearings 23 on which the workpiece 24 is based, for example a rolling bearing ring. At the end of the shaft 5

0, a pulley 25 is provided for coupling the drive.

Item 24 is attracted to the drive end 10 by the magnet 9 and during rotation. SRI spindle is pressed by the forces

5 The frictional interaction with the end face to the radial bearings 23, the axis of the part lying on the supports is offset relative to the axle of the spindle. Shaft 5 can. rotate in bearings- 3 and 4 s from Q relatively large radial

and axial beats. Diyfragma 6 transmits the disk 7 and the associated cartridge 8 rotation. The disk 7 is hung out on the air cushions that roar between the supports 11 and 12 and the disk and minimize the axial beats of the disk 7 and, consequently, the leading end 10. The radial beats transmitted to the disk 7 from the shaft 5 by the diaphragm b are not Significant impact on machining accuracy when using radial bearings 23.

Claims (3)

1. DEVICE FOR BAGGING AND ROTATION OF PARTS, such as bodies of revolution with a flat base end mounted on radial bearings, a bearing spindle rotating in bearings, characterized in that, in order to reduce axial runout, the device is equipped with a plane-parallel disk, which is self-mounted between supports and bearing a clamping element with a leading end, the disk being connected to the spindle by means of a diaphragm. 2. The device according to π. 1, characterized in that the supports are made aerostatic. 3. The device according to π. 1, characterized in that the supports are hydrostatic.