SU1298005A1 - Driver chuck - Google Patents

Abstract

The invention relates to a machine tool industry, in particular to clamping devices for fastening a part; It is of the type of rotation bodies, for example, an electric motor assembly assembled on lathes. The aim of the invention is to simplify the design by using one drive to move two groups of cams. The stepped and slewing cams are interconnected by means of the slats 4, hingedly connected with the slewing cams 3, with one end of the strap 4 communicating with the arm 7 rigidly mounted on the stepped cams 2. When the stepped cams 2 move, the strips 4 are released, turning them under the action of the spring 8. Turning, the strips 4 bring the rotary cams 3 to contact with the part, continuing to move the cams 2 clamp the part along a different diameter. 3 il. 1 (S u g 00 o o sd

Description

The invention relates to a machine tool industry, namely to clamping devices, and can be used for fastening parts such as rotary bodies when machining on lathes, in particular when machining an assembled electric motor.

The aim of the invention is to simplify the design by using one drive to move two groups of cams.

FIG. presented cartridge, axial section; in fig. 2 - a cartridge in which the interaction of eccentric cams with stepped ones is carried out by means of spring-loaded shatuns, general view; in fig. 3 shows section A-A in FIG. one.

The cartridge includes a housing 1 (Figs. 1 and 3) with three self-adjusting sliders with stepped cams 2 fixed to them. Cams 2 interact with pivoting cams 3 by means of bars 4 turning on axles 5 through fingers 6, one end of bars 4 is connected cams 2 through brackets 7. Cams 3 rotate in the direction of "The part is clamped by means of springs 8. The bar 4 can be made in the form of a nipper 6 bringing the rotary cams 3 into contact with the workpiece 12. Continuously mixing, the stepped cams 2 clamp the workpiece 12 for a different diameter.

Unclamping is carried out in the reverse order described.

The cartridge (FIG. 2) comprises a housing 1 with three self-adjusting sliders with stepped cams 2 attached to them. Cams 2 interact with the ex-10 centric cams 3 by connecting rods 9. The connecting rods 9 have the ability to swing relative to the fingers 6 and P. Between the finger 11 and shatunom installed spring 8.

The cartridge (Fig. 2) works in the following 5 ways.

In the initial position, the cams 2 are separated. The connecting rods 9 through the fingers 6 and 11 hold the rotary cams 3 in the position “The part is decompressed. The springs 10 are in a free state.

After installing part 12 in the centers of the machine and pressing it to the axial base, the power drive is switched on to move the sliders in the direction "The part is clamped. Radial movement of the stepped cams 2 and

20

a tuna 9 spring-loaded 10 from 25 through the fingers Y and the springs 10 forcefully the finger 11. does not make a complicated flat movement

The cartridge (Fig. 1) works as follows 9, the result of which will be the image.

In the initial position, the cams 2 are separated. The Kronschteins 7 act on the shoulder of the slats 4 in such a way that they hold the eccentric cams 3 in the “Part is unclasped” position. The springs 8 are in the cocked state. After the adjustment of the cams 3 to contact with the workpiece 12.

Claims (2)

Invention Formula The installation of the workpiece 12 in the centers and pressing it to the axial base includes the guide cartridge, in the case of which there are two groups of clamping jaws, characterized in that, with the aim of up -, -, - --- - ,,,,., For example, a power drive (not shown) on the design oversize, cams of one group moving the sliders to the side “The part is clamped. When radial movement of the stepped cams 2 with brackets 7 fixed on them, the strips 4 are released and their rotation under the action of the springs 8. Turning, the strips 4 through 40 rotatable on an axis, and each of them is associated with a cam of another group by means of a hinged bar on it, designed to interact with a brace rigidly connected with the cam of the other group. fingers 6 bring the rotary cams 3 into contact with the workpiece 12. Continuously mixing, the stepped cams 2 clamp the workpiece 12 at a different diameter. Unclamping is carried out in the reverse order described. The cartridge (FIG. 2) comprises a housing 1 with three self-adjusting sliders with stepped cams attached to them 2. Cams 2 interact with eccentric cams 3 by means of connecting rods 9. Cranks 9 have the ability to swing relative to fingers 6 and P. A spring 8 is installed between finger 11 and shatun. The cartridge (Fig. 2) works as follows. In the initial position, the cams 2 are separated. The connecting rods 9 through the fingers 6 and 11 hold the rotary cams 3 in the position “The part is decompressed. The springs 10 are in a free state. After installing part 12 in the centers of the machine and pressing it to the axial base, the power drive is switched on to move the sliders in the direction "The part is clamped. Radial movement of the stepped cams 2 and through the fingers And and the springs 10 makes a complex flat movement cranks 9, the result of which will be the rotation of the cams 3 before contact with the workpiece 12. Invention Formula A drive cartridge, in the body of which there are two groups of clamping jaws, characterized in that, for the purpose of a pack, ,,,, rotatable on an axis, and each of them is associated with a cam of another group by means of a hinged bar on it, designed to interact with a brace rigidly connected with the cam of the other group. FMS .J Compound A, Editor G. VolkovaTehred I In p; KojipoKTop L. Demchik Order 729/14 Circulation 976iio; i :;} onoe VNIIPI State Vomipt (. SS, Poly. Am 1;, | brstenin n discoveries 1 13035, Pos1chva. W-- 35. PavHjCK.H m:; C ,. D. G5 Production and printing Chrelpr; thio,; Uzhp Under, l. Project l, 4