SU1359079A1 - Arrangement for securing thin-walled parts of disk type - Google Patents

Abstract

The invention relates to the field of machine tools and can be used in the processing of thin-walled parts such as disks. The aim of the invention is to simplify the design of the LA by eliminating the hydraulic drive of the subsea supports. The support of the supports 7 is made in the form of a plunger with an inclined surface at the base, which interacts with an inclined surface 11 formed at the end of the centrifugal load 10. Part 5 is fixed with a collet 3, the underwater supports 7 come into contact with the part. When turning on the rotation of the spindle 4 of the machine, the weights 10 under the action of centrifugal forces are moved apart and their inclined surfaces 1I wedge the underwater supports 7, which prevent the parts 5 from deforming from the cutting force. 3 il. o (l co

Description

The invention relates to a machine tool industry and can be used in the processing of thin-walled parts such as disks.

The purpose of the invention is to simplify the design by eliminating the hydraulic drive of the underwater supports.

1 shows a device without a workpiece fixed on it, general view; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1.

The device contains a faceplate 1 with a mandrel 2 and a collet 3 rigidly mounted on the spindle 4 s. Machine. On the outer diameter of the collet 3, there is installed an machined part 5 connected by an end face of a hub with stops 6 fixed on a faceplate 1. Subsea supports 7 are made in the form of spring-loaded plungers evenly spaced around the face of the faceplate 1. Each subsea support 7 is installed in a transverse shelf P -shaped bracket 8, provided with a cylindrical guide 9, and between the longitudinal shelves of the crown harbors, an inertial load 10 is freely installed in the form of a bar, on the end of which an inclined surface is made, interacting with the inclined surface 11 of the base 7. Each support 10 is provided with a load handle 12 for .To go back to its original position when installing the spindle 4. The machine tool 13 and the hole 14 to latch the initial position.

The device works as follows.

When installing the part 5 to be machined, centrifugal weights 10 need to be shifted by means of the handle 12 to the center of rotation of the fixture, which are fixed in the initial position by the lock 14. Part 5 is brought to the base stop 6 and secured by the collet 3, the subsea operating supports 7 contact with detail. When turning on the rotation of the spindle 4 of the machine, the weights 10 under the action of centrifugal forces move apart and under their inclined surfaces 11 wrap the underwater supports 7, which exclude the deformation of the part 5 from the cutting force. The release of the part 5 occurs in reverse order when the rotation of the spindle 4 stops.

F

formula of invention

A device for fastening thin-walled parts, such as disks, in whose planner a mandrel is placed, a clamping mechanism and end underwater supports made in the form of spring-loaded plungers connected with a drive for their movement and located evenly around the circumference, which are different In order to simplify the design, the drive for moving the end underwater supports is made in the form of centrifugal weights installed with the possibility of radial movement with an inclined surface on the end, designed to interact with ich-. surface on the plunger.

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Compiled by T. Kravchenko Editor M.Tovtin Tehred M.Hodanich Proofreader S.Shekmar

Order 6104/15 Circulation 970. Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (1)

SUMMARY OF THE INVENTION A device for attaching thin-walled parts such as disks, in the washer plan 25 of which there is a mandrel, a clamping mechanism and mechanical underwater supports made in the form of spring-loaded plungers connected with a drive for moving them and arranged 30 uniformly around the circumference, which, in order to to simplify the design, the drive for moving the end of the underwater supports is made in the form of centrifugal loads mounted with the possibility of radial movement with an inclined surface at the end, designed for mutual actions with analogy. surface made on wasp. 40 new plunger. FIG. 7 6-6 figs