SU1705045A1 - Device for grinding and polishing of flat surfaces - Google Patents

Abstract

The invention relates to mechanical engineering and is intended for machining flat surfaces on optical grinding and polishing machines. : i The purpose of the invention is to improve accuracy. The device contains roller bearings mounted on a bracket, kinematically associated with the mechanism of its installation movement relative to the tool surface. In addition, each roller bearing is articulated with; the device bracket through the intermediate beam, and the axis of the roller bearings are rigidly connected to each other with earrings of variable working length, forming a polygon. 4 il.

Description

The invention relates to mechanical engineering and is predzhagacheno for holding processed products, mainly on optical grinding and polishing machines.

The purpose of the invention is to improve the accuracy of processing.

FIG. 1 shows the kinematic diagram of the device; Fig 4 2 shows the device, section, perpendicular to the base side of the bracket; in fig. 3 - the same, top view; in fig. 4 shows section A-A in FIG. 3

The device comprises a unit 1 of processed products, two pairs of roller bearings 2 mounted on an arm 3 of arcuate shape rigidly connected with the beam 4 of the mechanism of its axes. Each roller bearing 2 is connected to the bracket 3 of the device by means of an intermediate beam 5 through a double cylindrical hinge 6,

coaxially to the double cylindrical hinge 7 of the bracket 3, and the axes of the roller bearings 2 are rigidly interconnected by means of earrings 8 of variable working length (i.e., for example, the form of strips with longitudinal grooves through which the center-to-center distance of the axes of the roller supports 2 can vary ), forming a shape close to the square.

The fixing of the bracket 3 relative to the rocker arm 4 of the device is carried out; with the locking screw 9, and the certainty of the relative position of the axes of the roller supports 2 together with the earrings 8 is provided with locking nuts 10. The vertical positioning of the position of the unit 1 of the workpiece is provided by the working surface of the abrasive tool 11 mounted on the spindle 12 pr (set of located in the frame 13 stanc /

with

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i. rt. B (if. (; -. F ;;. H. JCT to the crocodo ioponnJHH KuH 1 is installed on the hinge ycv, remembered in box 1 5 of the swing drive, 1 lm ;; dm; -o: In the 13th machine,

The device works the following m winters.

Ate installation .5lok; 1 machining of lx products on the surface of the abrasive tool 11 — produced with stoppers nuts 10, earrings 8 with variable working length and also intermediate ones: villages 5. Removing fixing nn.iJ-tMi oro for the removal of roller axes Supports 2 Isolol:, uts to install their new mutual removal (up to the contact of the rollers g: n Operas 2 side surfaces of the pancake of the products being processed) in accordance with the new dimension of the unit 1 of the publications being processed. In the installed position of the roller bearings 2, the fixing of the position is carried out by squeezing the matched parts of pairs of earrings 8, tightening the lock nuts 1P until they stop into the shoulders of the axes of the roller bearings 2. When the block surface of the workpiece is formed, the abrasive tool 11 starts The spindle 12 of the drive placed in the machine bed 13 sets rotational motion with a constant angular velocity (0. The square axis movement of the column 15, the rotary head 14 and the rocker arm 4 through the bracket .1, double cylindrical hinges 7 and 65 short term

Korokmgl 5 (see chamtn1 between coGufi earrings 8), is transmitted by a wave bearing: - 2. JTO movement / provides Hefipei-4.i; inoe change in the de- entropic distance of the block of workpieces and abrasive tools 11.

In order to displace the trajectory displacement paths of the upper star of the machine with respect to the spindle axis, perpendicular to the stroke, it is sufficient to remove the locking screw 9, move the bracket 3 and the associated device parts along the rocker A to the required value and restore the fixation of the bracket 3 to the locking screw 9.

Claims (1)

Invention Formula A device for grinding and polishing flat surfaces, comprising roller bearings mounted on an arm kinematically associated with a mechanism for its movement, characterized in that, in order to improve the processing accuracy, the device is provided with intermediates; rocker arms, each of which is sharply connected with the bracket and roller support, while the roller spores are rigidly connected with each other, inserted into the device by means of adjustable lengths, due to the formation of a polygon. / E77f W b CW-SG / .l -n P 5 i i /. JL; A., N. h 1LG1 -I P; -Y M St-S {tO fer- " .-. # -:, ... Aa , FIG. four