SU876318A1 - Chuck - Google Patents

Description

(54) CARTRIDGE

t

The invention relates to mechanical. processing of materials, namely, to multi-place devices for metal-cutting equipment. j

A cartridge is known, comprising a housing with prismatic supports, a flexible tape and a mechanism for moving it ll.

The disadvantage of this cartridge is not enough reliable fixing de- | Q

hoists.

The purpose of the invention is to increase the reliability of fixing parts.

This goal is achieved by the fact that the cartridge is provided with a clip with add. with prismatic supports covering the part from the outside, while the flexible tape is placed between the main and additional supports mounted relative to each other with displacement. Step, and bent 20 so as to form slots opposite to each other for positioning the parts, and the belt moving mechanism is made in the form of at least three cams, one end of which is rigidly connected with the yoke and the other is designed to interact with the wedge slider installed in the housing se

Figure 1 shows the cartridge, a general view; figure 2 - section aa in figure 1.

On the housing 1, prismatic supports 2 are made under the workpiece 3, covered outside the sleeve 4 with additional prismatic supports 5. In the holder 4 there are three T-shaped uniformly spaced radial grooves in which movable cams 6 are placed, supported by their inclined bases 7 on the wedge slider 8, made in the form of a truncated cone with three inclined areas on its forming surface. The wedge slider is installed in housing I with the possibility of movement in a plane perpendicular to the axis of the cartridge. For this, the wedge slider is movably supported on the end face of the body 1, in which it is held by means of a key 9 and pressed into middle position by springs 10 and cams b. The housing 1 is movably mounted in the axial direction and can be moved in the housing 4 by means of a pull rod 11 connected to a power cylinder (not shown). An adapter 12 is attached to the back of the yoke 4, with which the chuck is connected to the machine spindle (not shown).

Between the main supports 2 and additional 5 risers, a flexible tape 13, the bends of which, together with the supports, form slots for the placement of parts 3 in them, and the average bend rests on the working part 14 of the cam b.

. The operation of the cartridge is as follows.

In the initial position, the housing 1c with the wedge slider 8 is moved to the left inside the cage 4, the cams b from the action of the springs 10 are reduced to the axis of the cartridge and hold the slider 8 in a coaxial position of the cartridge. The tape 13 is relieved of force from the cams 6, as a result its curved parts are separated from the prismatic supports 2 and 5 and together with them form free slots for the installation of parts 3..

Parts 3 are installed in the nests. The ram is turned on, which moves 11, body 1 and slider B to the right. The last. Extends the cams 6, and those acting on the belt 13, provide clamping of parts 3 to supports 2 and 5. When the cylinder is turned off, the cartridge is reset and the machined parts are removed.

This embodiment of the cartridge provides increased reliability of fixing parts.

Claims (1)

1. Radchenko V., M., Emanuel GD Machine tools in mechanical engineering, M., Mashgiz, 1952, p. 82, FIG. 67. V ii (Reg. I