SU1398971A1 - Forging manipulator - Google Patents

Abstract

The invention relates to ancillary equipment of press-forging workshops, namely, the design of forging manipulators. The goal is to increase the reliability of the manipulator and expand its technological capabilities by providing the possibility of manipulating lengthy blanks. The forging manipulator includes a housing 3, on which a trunk 4 is placed with the possibility of rotation and reciprocating movement, at one end of which pliers 5 are mounted, and at the other end VJLJJJ 1b, 11 and f5 ftf./ pliers clamping drive. The drive is made in the form of a pneumatic cylinder. The manipulator is equipped with a mechanical amplifier. The power elements are made in the form of double-arm levers, mounted with the possibility of FAIRS 18 large shoulders interacting with the end of the sleeve, and smaller ones - with the ends of the clamps 15, installed with orientation on the end part of the support 16. Mezvdu clamps 15 and the body 6 have pre-compressed springs 19, An adjustment is made to automatically turn on the mechanical amplifier after idle ticks. The device has a controlled latch 22 with the ability to completely disable the mechanical amplifier. After the workpiece is gripped, the force from the pneumatic cylinder piston is summed with the force from the mechanical amplifier. The reliability of the latter is enhanced by simplifying the elements of its automatic switching on after idle mixing of the tongs and increasing the working stroke of the power elements. 5 il. 00 00 00 00 Ч H

Description

The invention relates to ancillary equipment for forging press shops, namely to the design of forging manipulators.

 the invention is on the reliability of the manipulator and the expansion of its technological capabilities by providing the ability to manipulate lengthy workpieces,

Figure 1 shows a blacksmith manipulator, general view; figure 2 - section aa in Fig, 1; on fng.Z - section BB in Figure 1; figure 4 - node I in figure 1; figure 5 - section bb In figure 1.

The forging manipulator contains Support 1, on which stand 2 with a swinging body 3 is mounted. Trunk A is mounted for rotation around its axis, at one end of which pliers 5 are mounted and at another end there is a clamp clamp. This drive is made in the form of a pneumatic cylinder that includes the housing 6, the piston 7 and the rod 8 The rod 8 is connected to the tongs 5 and 9 9. The housing 10 of the pneumatic cylinder is rigidly connected to the yoke 10 mounted on the trunk 4 with a pin 11 which is fixed on the trunk 4. In the opening of the casing 10 there are fixed copying lines 12, in which grooves with stepped surfaces are made. In the initial position, the {upper steps of the grooves of the copy of the NECs are pressed by the springs 13 by means of the rollers 14, the clamps 15, passing through the cuts made in course 4. In the area of these cuts, the cutting interacting with the cutting made on the inside of the clamps 15. These clamps are the end links of a mechanical amplifier, the power elements of which are made in the form of two shoulders, each of which is pivotally mounted on the support 16 with the possibility of interacting with its short arm 17 15 m and a length of 18 - with the end face of ferrule 10.

To adjust for automatic activation of the mechanical amplifier, after the clamping of the tongs, pre-compressed springs 19 are provided, which are installed between the end wall of the pneumatic cylinder body 6 and the flange 20, abutting against the ends

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of presses 15. The degree of pre-compression of the springs ensures that the pneumatic cylinder body is retained from displacement with a force exceeding the force transmitted from the piston 7 to the thrust rod 9 for idling the ticks. Before the mechanical amplifier 19 is turned on, acting on the flange. 20, the clamps 15 are pressed through it against the end surface of the support 16. This surface is the base for precisely orienting the clamps 15 relative to the rod 9 in the initial position. From lateral displacement, the clamps 15 are held by the walls of the grooves in the copiers 12, with which the rollers 1 4 contact.

The lower portions of the clamps 15, which interact with the shoulders 17, are lengthened and fit under the protrusions of the support 16, in which the axles of the two double-arm 20 are installed. This allows for the maximum possible working stroke of the short arms of the 17 levers of the mechanical amplifier.

To set up the device for operation in one of two modes - with a mechanical amplifier or when it is completely disconnected - a manually controlled means of fixing the position of the holder relative to the trunk in the form of a rod-fixer 22 is provided. The said lock is mounted on the hub of the 1O holder in the area of its interaction with pin 11, the protruding part of which is placed in the longitudinal groove 23. The latch 22 is installed with possible; ., by entering this slot into the gap between its left (according to the drawing) wall and pin 11. The positioning of the lock in a position corresponding to one of the two modes is performed by pressing the ball 24 with spring 24, which goes into the recess on the lock 22.

In the main jaws of the tong 5, additional jaws 26 are mounted with the possibility of their rotation around the axis perpendicular to the axis of the trunk 4 by means of an actuator 27.

To control the pneumatic cylinder, a distributor (not shown) is provided, with which compressed air is supplied either to the clamping cavity 28 or to the pull-out 29. Handles 30 are fixed to the rear wall of the pneumatic cylinder 6 housing.

The manipulator works as follows.

To process the elongated parts, the operation mode is set up with automatic switching of the mechanical amplifier. In this case, the retainer 22 is removed from the groove 23. In the initial position, the cavity 28 of the pneumatic cylinder is connected to the atmosphere, and the housing 6 together with the yoke 10 is in the extreme left (according to the drawing of the su) position limited by the pin P.

The operator takes the hands of the handles 30 and, through the housing 6 and the yoke 10, applies them to the trunk 4, brings the tongs 5 to the workpiece being processed. Then, through the distributor, a command is supplied to supply compressed air to the clamping cavity 28. In this case, the piston 7 with the rod 8 moves to the left (according to the drawing), a drag 9, which reduces the tongs 5, and the housing 6 is kept from shifting to the right by compressed springs 19. After the contact of the tong with the surface of the workpiece, when gaps in the links of the mechanism are selected, the piston 7 stops, and

as the compressed air enters the cavity 28, the pressure in the latter increases. After the force from the pressure acting on the end wall of the body 6 exceeds the amount of force with which the springs 19 are pre-compressed, the body 6 together with the yoke 10 starts moving to the right. This is how the transition from pre-clamping ticks to force clamping of the workpiece is performed. In the initial stage of displacement of the casing 10 to the right, the ruler 12, with its low steps, acts through the rollers 14 on the clamps 15, displacing them along the end of the support 16 to closing with the cut section of rod 9. At the same time, the gap between the end of the casing 10 and the working surfaces is selected. long arms 18 levers mechanical amplifier. Upon further movement of the boomie 10 to the right, the levers turn on axles 21, I apply short arms 1.7 to the ends of the clamps 15, displacing them together with the thrust 9 to the left. This process is about

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The working stroke of the clamps 15 together with the thru 9, which occurs under the influence of the double-arm levers of the mechanical amplifier, provides the tension of all the loaded links of the device at any value of their deformation and compliance of the heated billet. At the same time, the gain in strength due to the ratio of the lengths of the shoulders 17 and 18 during the working stroke remains almost constant and ensures reliable clamping of parts of various configurations.

When the forging is rolled during its rotation with additional jaws 26, when its size in cross section increases, the shells 5 are consumed. In this case, the ha 9 is shifted to the right, in the same direction, the clamps 15, which, through the arms 17 and 18 of the levers, move the sleeve 10 together with the housing 6 relative to the trunk 4 to the left, are carried away in the same direction. In this case, the moving elements of the drive experience only the resistance of the compliant medium — compressed air. Since during the rolling of the forging, the workpiece is machined from various sides,: the tongs periodically open up to intercept the part. Due to this, with each new clamping cycle, the elements of the mechanical amplifier are re-installed in a position that ensures the grip compliance on forced opening of the ticks.

The mode is completely off the mechanical amplifier.

If it is necessary to ensure that such operations are carried out when the expansion of the workpiece to its follow-up interception exceeds the value of the ticks on opening, the latch 22 is inserted into the groove 23. In this case, the clamping force of the tick grip is created by a pneumatic cylinder without a mechanical amplifier.

In the case of unstocked workpieces, this effort is sufficient, since the tick-borne gripping load from the force of the workpiece gravity acts in the area of the jaws without creating a moment. On the other hand, reducing clamping force improves the working conditions of the mechanism.

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comes with an increased pressure of compressed-55 rotation of additional sponges 26. In the air in the cavity 28, when on t - the process of rolling the workpiece, when PG 9. The maximum force acts. its size in cross section increases from the piston 7, which is summed with , pincers 5 are consumed, displaced by force from a mechanical amplifier. t gu 9 and with it the piston 7 vloA-A

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Claims (1)

Claim A blacksmith manipulator containing a base, a housing mounted on it with the possibility of rotation and axial reciprocating movement with a βθ trunk with a mite grip mounted on it, a mechanism for reducing the levers to the Grooming grip, made in the form of a pneumatic cylinder and traction, connecting the mite grip levers with the pneumatic cylinder rod, a mechanical amplifier of the lever-lowering mechanism of the tick-borne grip, including a clip with carbon rulers, clamps, tightly connected to the pneumatic cylinder body, mounted with the possibility of interaction with the rod and moving along its axis and bearing rollers located with the possibility of interaction with the guide lines of the cage, power elements pivotally mounted on a support with the ability to interact with the cage and clamps, and also means for fixing the position of the cage relative to the trunk, characterized in that, in order to increase reliability and expand technological capabilities, it is equipped with elastic elements in the form of springs installed with pre-compression force between the clamps with the pneumatic cylinder body, each power element is made in the form of a two-shouldered lever with unequal shoulders, the larger of which is designed to interact with the end face of the clip, and the smaller one with the end surface of the corresponding clip facing the support. and the means of fixing the position of the clip relative to the trunk are made in in the form of a rod with a wide lock. Fig2 Editor L. Povhan Compiled by Y. Filimonov Tehred L. Serdyukova Proofreader G. Reshetnik Order 2621/10 Circulation 589 Subscription VNIIIPI of the USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushskaya nab., 4/5 Production and printing company, Uzhhorod, st. Project, 4