SU1503969A1 - Device for transferring blanks to automatic multiposition stamping machine - Google Patents

Abstract

The invention relates to forging equipment, namely, transfer devices, and can be used in multi-positional punching machines. The purpose of the invention is to increase the reliability of work and reduce the time for installation and disassembly by reducing inertia. The transfer device contains autonomous transport blocks hinged on a rack-bed, the bodies of which are connected hinged to each other and driven by their rods. In the cases are mounted sliders that carry tick-borne grips. The housings are provided with hollow trunnions hinged with shafts in the trunnions. One ends of the shafts are kinematically connected with the drive of the automaton, while the other ends are interconnected with the rollers fixed in the slider. At the lower end of each body, perpendicular to the movement of the slider, a contact surface is made to interact with the opening-release lever roller. When lifting the grips is their disclosure. At the moment when the grips are in the open position above the working positions of the machine, the blanks are pushed out of the dies. In this case, the grippers lower and clamp the blanks. 1 hp ff, 3 ill.

Description

The invention relates to forging equipment and can be used in multi-position punching machines.

The aim of the invention is to increase reliability and shorten the time for installation and disassembly.

FIG. 1 shows a kinematically device for transferring blanks; in fig. 2 - the axle floor and the shaft on which the block is mounted, the cut; in fig. 3 is a view A of FIG. 2 (mating points of the ends of the transition sleeve and the trunnion).

The workpiece transfer device contains autonomous transport blocks 1, which are connected to each other and their swing drive (not shown) by hinges 2. Each block 1 consists of a body 3 in which a slider 5 spring-loaded with spring 4 is mounted with reciprocating mixing about the axis 6 landing matrices (not shown). The slider 5 at its end bears flare clamps 7, which include the lever 8 to close and the lever 9 to open. On the lower part of the housings 3, perpendicular to the movement of the slider 5, a contact surface 10 is made, which interacts with the roller 11 of the opening lever 9. The ends of the levers 8 VI 9 are constantly pressed by the spring 12, one end fixed on the lever 8, and the other end mounted on the housing 3. The screw 13 adjusts the grippers 7 to the size of the workpiece. The opening of the grippers 7, their lifting is carried out from the shaft 14 mounted on one common axis. The housings 3 are provided with a protruding cylindrical part — a hollow trunnion 15;

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by means of which they are hinged on bearings 16 mounted on shafts 14. On the inner side, at the junction of the body 3 to the cylindrical part, a flange part 17 is made on its flange part. On the outer cylindrical part 18 of the trunnion 15 a transition sleeve 19 is seated, having on one the end of the end groove 20, through which it mates with the protrusion 17, and the other end is made conical. Rigid fastening of the sleeve 19 with the trunnion 15 is carried out by means of a nut 21 and a conical sleeve 22. The entire unit 1 is mounted in bearings 23 mounted in a rack 24 mounted on a frame (not shown). The ticks are lifted, opened and closed by a drive element. For this purpose, a cam 25 is attached to the shafts 14 at one end and interacts with a roller 26 which is mounted on a slide bar 5. A gear 27 is fixed at the other end of the shaft 14 and interconnected kinematically with the drive of opening close and lift grabs.

The levers 8 and 9 are hingedly mounted on the axles fixed on the slide 5. The swing transfer from the pull 2 to the housing 3 is set at an angle φ through sleeve 19 with the actuator 28, the magnitude of the swing φ depending on the distance between the landing positions automat.

The device works as follows.

When moving the rod 2 to the right (driven from the transfer cam through the lever mechanism, not shown), the housing 3 is rotated counterclockwise synchronously, while the rollers 26 roll around on the surface of the constant radius of the cam 25, as a result of which the tongs TC in the closed position and hold the workpiece when transporting it between landing positions.

When block 1, in the process of turning, transferred the workpiece, it stops against the matrix, at this time simultaneously the heading slider pushes the workpiece into the matrix, and cam 25 begins to turn with its large protrusion through roller 26, raises the slide 5 with grippers 7. Simultaneously with lifting of the grippers 7, they are opened through the roller II, which abuts against the supporting surface 10. As a result, the lever 9, turning around the axis fixed in the housing 3, through the screw 13, acts on the lever 8, extending the spring 12, and tvl disclosure is mites and their recovery. After this, the ha 2 moves to the left, which leads to the synchronous rotation of the housings 3 in a clockwise direction and their return to the initial position. In this case, the roller 26 rolls over the surface of a larger constant radius, ensures that the levers 8 and 9 are in an open position above the positions of the charge of matrices. At this time, ejection of the blanks from the dies occurs, the cam 25 rotates and the roller 26 falls by a smaller P1H constant radius. Under the influence of the springs 4 is lowering the slider

5 and the grippers 7, and from the compression of the spring 12 - the closing of the grips 7 and the work clamp. Then the cycle repeats.

The cycle of manufacture of a product, for example a screw, corresponds to one turn of the cam 25, coordinated with the thrust stroke 2.

Claims (2)

1. A device for transferring blanks to multi-position punching machines, 5 containing autonomous transport blocks pivotally mounted on a rack, the shells of which are pivotally connected between themselves and driven by swinging them, lever clamp pliers, equipped with mechanisms for their closing and opening, in order to increase the reliability of the work and scrape it time for assembly and disassembly, the mechanisms for closing and opening of the tong-shaped grippers are made in the form of mounted sliders in hollows, hollow trunnions hinged in the studs of shafts, one ends of which are kinematically connected to the drive m of the automaton, and the other ends are interconnected through the drive element with the sliders, while the tongs are mounted on these halves, and at the lower end of each body perpendicular to the direction of movement of the sliders are made a supporting surface, one of the arms of each tong clamp is placed with the possibility interaction through a roller with the specified 5 support surface. 2. The device according to claim 1, characterized in that it is provided with an adapter sleeve, hingedly mounted in a rack and rigidly connected by detachable connection with a hollow pin. 15 YU Type A Fig.Z