SU132049A1 - Clamping pneumatic device - Google Patents

Description

Pneumatic clamping devices for machines that process workpieces, in particular, relay housings, are known. However, these devices do not provide for mechanization of the removal of blanks.

In the proposed device, this disadvantage is eliminated by the fact that it uses a swinging unbalanced fork-type ejector with a pneumatic stopper, which is activated simultaneously with the unclamping of the product.

The cutters of the machine are interlocked with its caliper, having a reciprocating motion, and the clamping device described is mounted on the caliper.

FIG. 1 schematically shows the proposed machine in general form with a partial section; in fig. 2 - cutting device in section; in fig. 3 is a cut-off device in section along A-A in FIG. 2; in fig. 4 - sectional clamping device; in fig. 5 - clamping device, 1VID above.

The stationary frame 1 reciprocates the support 2 under the action of a pneumatic-hydraulic actuator, which carries the clamping device 3. The clamping device 3 is kinematically connected with the swinging unbalanced ejector 4 located on the left end of the frame 1. On the base there is a magazine 5 with a cutting device (Fig. 2 and 3), equipped with two pairs of cutters 5 and 7, located on the slider 8, freely moving along its axis.

When the caliper 2 moves to the right (idling), the cylinders 9 vi 10 (Fig. 4) are connected to the atmosphere. The stopper 11 of the unbalanced ejector 4 is lowered down and the ejector takes an inclined position. The clamping device 12 is open for receiving the workpiece 13 from the magazine 5. Upon further movement, the caliper 2 presses the slider 8 and retracts it to the right. The cutters 6 release the workpiece 13 and it lies in the clamping device 3, and another pair of cutters 7 holds the next workpiece.

№ 132049

At the beginning of displacement of the caliper 2 to the left (working stroke), the spool opens the supply of compressed air to the cylinders 9 and / O and the cylinder rod 9, acting on the part 12, clamps the workpiece 13 in the fixture. At this time, the cylinder rod 10 raises the stopper // up and sets up the pump, the unbalanced ejector 4 sets it in a horizontal position.

Mixing left along with the caliper 2, the workpiece 13 is processed by various tools. At this time, the slider 8, under the action of the spring 14, also shuffles to the left until the cutters 7 release the workpiece 13, which lies on the cutters 6.

At the end of the working stroke, the swinging unbalanced ejector 4, with its forks, enters the special grooves 15 of the jig 3 and the workpiece is placed on these forks.

The caliper 2, until it stops 16, finishes its working stroke and begins to move to the right. At the same time, the supply of compressed air to the cylinders 9 and 10 is stopped. The clamp 12 releases the workpiece 13, the strut 11 is lowered downwards. The swinging unbalanced ejector takes an inclined position, and the machined part, raised upward on the forks of the swinging unbalanced ejector 4, slides B into the container of finished products. Then the cycle repeats.

The described device is used on automata processing relays, in particular of the type PC-13 and PC-52.

Subject invention

A pneumatic clamping device for automatic processing of workpieces, in particular for a relay case, characterized in that, in order to mechanize the removal of the machined part, a swinging unbalanced fork-type ejector with a pneumatic stop operated simultaneously with unclamping of the part is used.

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FIG. 2

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15

FIG. five