SU369968A1 - ALL-UNION, Experimental Research and Development njjjj ^^ grjtr? - 'I''CH' ^ | ^ "АЯ • forge-and-press machine-building bnb-iatrch 'MfiA' - Google Patents

Description

one

The invention relates to the processing of metals by pressure and can be used, for example, for fastening hydraulic strikers to forging presses or dies on presses.

A device for fastening a tool to a traverse of a press is known, which contains a power cylinder traverse placed in a housing. The piston rod of the cylinder is connected by means of an intermediate element with spring-loaded thrusts symmetrically located with respect to the axis of the power cylinder, carrying clamping members with a locking mechanism.

In order to increase the reliability of operation, reduce the drive force and the possibility of fastening the tool at more than two points, using one drive cylinder, the intermediate element is made in fixed on the axes located symmetrically relative to the axis of the pressure cylinder levers. The sequences interact with one arm with the pori rod of the power cylinder: with the other with spherical supports fixed to a spring-loaded tag.

FIG. 1 shows a device, a longitudinal section; in fig. 2 shows a section along A-.4 in FIG. one; in fig. 3 - movable rod in the groove area and its development; in fig. 4 is a view B in FIG. one.

In the under-plate plate / mounted, the guide to the boom 2, in which the shaft 3 enters as a fit. On the other hand, the thrust bearing 6 is supported on the same side, on which the support 7 is mounted, having a direction in the sleeve 5, located in the die plate /. At the rectangular lower part of the rod 3, pr11J1.m 9 is mounted, which is held by a nut} 0.

The rod 3 passes through the groove in the collar of the striker U /, and 9 the upper plane (see Fig. 1) presses the hammer to the die plate /. In the l) part of the rod 3 there is a figurine groove and into which the pin J2 enters, which is open in the sleeve 3. It is subsequently mounted in the substamp plate /.

FIG. 3 shows the lower part of the rod 3 with the shaped groove 12 and its reamer. The groove has two straight sections, 90 ° apart from each other in the angle of rotation of the rod, i connecting them along a helix.

The support 7 in the upper part has a spherical surface in contact with the lower part of the lever 14, which sits on the axis J5. The left end of the lever also has a spherical head, which interacts with the rod 16 of the power cylinder P.

Compressed air from the distributor (not shown in the drawing) is fed through channel b into the power cylinder 17. The rod end of the cylinder is connected to the atmosphere through holes.

The power cylinder can be mounted in the traverse / 8 of the press, the substamp plate 1, as well as in the bottom part of the working cylinder (for presses of small force).

During the operation of the press, the package of disc springs 4 through the thrust bearing 5, the rod 3 and the clamp 9 presses the firing pin // to the die plate /, which is rigidly connected with the mounts (not shown) to the traverse 18 of the press. The channel b is in this case combined with the atmosphere, and the piston of the cylinder 17 under the action of the package of disc springs 4 through the lever 14 and the rod 16 occupies the upper extreme position.

Thus, the firing pin // is associated with the press head 18 and repeats all of its movements.

To change the striker, the traverse 18 is lowered until it lies on the lower firing pin (not shown). Then, with the help of the air distributor (not shown in the drawing), the channel b communicates with the power source. The piston and rod of the cylinder 17 begin to mix down, turning the lever 14 around the axis 15. At the same time, the lever 14 at its lower part presses the spherical surface of the support 7, which, through the thrust bearings 5 and the collet of the rod 3, compresses the package of the Belleville springs 4.

Possible lateral forces arising from the transmission of force from the lever 14 to the support 7 are sensed by the guide sleeve 8, in which the support 7 moves. The loop 3 moves in the guide sleeve 2, while the pin 12 located in the sleeve 13 slides along the shaped groove but.

The pin 12 is located on the straight portion of the groove a, so first the rod 3 moves downward without turning, and

the clamp 9 departs from the collar of the hammer 11. With the further movement of the rod 3 pin, the slipper along the screw part of the groove a, turns it along with the clamp by 90 °. AT

As a result, the clamp 9 occupies the position selected in FIG. four.

The traverse 18 is then lowered, and the face 11 remains at the bottom.

To facilitate rotation of the rod 3 when

with its downward movement (reduction of the moment of friction) between the onor 7, its shoulder, and the bag springs of the spring springs 4, thrust bearing 6 and 5 are installed.

The attachment of the tool is carried out in reverse order, i.e., a new firing pin is installed, the crosspiece 18 s is attached to it, and the fastening device is attached to it. At the same time, the clamps 9 are deployed (see Fig. 4) and freely pass into the grooves of the firing pin. Channel b is then communicated with the atmosphere. Under the action of the packet of disc springs 4, the rod 3 rises up and rotates by 90 °, and the pressure 9 presses the firing pin // to the die plate /. The piston of the cylinder 17 occupies the extreme position.

Subject invention

A device for fastening a tool to a crossbar of a press, comprising a ram cylinder placed in a housing, the piston rod of which is connected by means of an intermediate element with spring-loaded rods symmetrically located relative to the axis of the cylinder, carrying clamping members with a locking mechanism, characterized in that and reducing the effort, the intermediate element

made in the form of levers fixed on axles symmetrically located relative to the axis of the ram cylinder, interacting with one arm with the piston rod of the ram cylinder and with the other with spherical

the supports fixed on podbrzhzhinenny t gakh.

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