SU1296273A1 - Stamping hammer - Google Patents

Abstract

The invention relates to the field of engineering, in particular to the design of equipment for metal forming. The purpose of the invention is to increase productivity by increasing the accuracy of the positioning of the work and the creation of conditions for automating the stamping process. On the stamping hammer head, axles with double-arm levers and mechanisms for turning these arms in the form of hydraulic motors (D), hydraulically connected with the working cylinder, are mounted. The outer shoulders of the levers rest on horizontally movable supports of the foundation, while the inner shoulders are hingedly connected to each other through a clutch. In this case, the body is fixed on the workbench. In another embodiment, the design of the hammer is mounted on the axles with the possibility of rotation, and its body is connected through the inner arm of the lever with an additional support, placed in the middle. When the energy carrier is fed into the piston cavity of the working cylinder, the woman mixes down, the liquid is displaced from the rod end of the working cylinder and enters G. As a result, the levers turn and raise the jib to meet the woman. After the end of the working stroke and the lifting of the head, the shabot returns to its original position. 2 hp f-ly, 4 ill. (Ooh; oi yu co

Description

The invention relates to mechanical engineering, in particular to the design of equipment for metal forming.

The purpose of the invention is to increase productivity by increasing the accuracy of the positioning of the work and creating the conditions for automating the process of forming.

FIG. 1 shows one variant of the hammer design, open, type; in fig. 2 is a view A of FIG. one; in fig. 3 is another variant of the hammer design, a general view; in fig. 4 is a view B in FIG. 3

Stamping hammer in one embodiment, contains 1, Babu 2, connected by a rod with a piston 3 of the working cylinder 4 mounted on the frame. Two parallel axes 5 with double-arm levers 6 mounted on them are mounted in the workpiece 1. The outer shoulders 7 of these levers rest on the supports 8, mounted with the possibility of horizontal mixing on the foundation 9. The inner shoulders 10 of the levers 6 are movably movable by couplings 11, which are ball - Nirno connected to each other. On axles x 5, the rotors of the hydromotors 12 are fastened, the hulls of the latter are rigidly connected to the shaft. The blades 13 of each rotor are formed with partitions 14 of hydromotors 12 of cavities 15 and 16. At the same time, the cavities 15 are permanently connected to the source of energy carrier through a check valve 17 and an adjustable choke 18 by line 19. The cavities 16 are connected alternately to the rod cavity 21 of the working cylinder 4 or with a drain tank 22 line 23. The piston cavity 24 of the working cylinder 4 through the valve 25 is connected with a source of compressed gas. When the mobile fastening of the hydraulic motors 12 on the axles x 5 in another version of the design, they are rigidly connected by additional levers 26 with the additional supports 27 mounted on the foundation 9.

Hammer works as follows.

In the initial position, the valve 20 is mixed to the right. Under the action of the energy carrier, which enters the cavity 21 of the cylinder 4, the woman 2 is located at the top. The cavities 16 of the hydraulic motors 12 are connected to the drain tank 22. An energy carrier entering the cavities 15 of the hydraulic motors 12 keeps the workpiece 1 at its original height above the foundation 9. In the cavity 24 of the cylinder 4 there is compressed gas. The valve 25 is closed. To complete the working stroke, the distributor 20 is moved to the left position, compartment of cavity 21 of cylinder 4 from the source of energy and connecting it to cavity 16 of hydraulic motors 12. Under the action of compressed gas in cavity 24 of cylinder 4, piston 3 begins to move downwards, acceleration of woman 2 and the energy carrier is displaced from the cavity 21 of the cylinder 4 in the cavity 16 of the hydraulic motors 12, acting on the blades 13 and

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forced to rotate the levers 6, which move upward the workpiece 1 towards the woman 2. After striking the workpiece, the distributor 20 is switched to the right and the cavity 21 of the cylinder 4 is connected to the energy source, and the cavities 16 of the hydraulic motors 12 are connected to the drain tank 22. Under the action of the energy carrier, the piston 3 moves up, lift the woman 2 and at the same time squeeze the gas in the cavity 24 of the cylinder 4. Shabot 1 moves down, turning the levers 6, which in turn rotate the blades 13. The energy carrier from the cavities 15 of the hydraulic motors 12 is displaced The rail m 19 through the choke 18 to the energy source, and from the cavities 1b through the rail 23 and the distributor 20 to the drain tank 22. Part of the energy of work 1 is expended to force the energy carrier out through the throttle 18. Moving down, the work 1 goes down below the initial position . At that, the moments on the outer arms of the levers 6 from the hydraulic motors 12 with respect to the attachment points of the axles 5 are more than the moments from the reactions of the supports 8 with respect to the same points. As a result, the work 1 stops and then moves up above the equilibrium position, where the ratio between the indicated moments becomes reversed. Shabbot 1 moves down again and, having made several vibrations, returns to its original position. The synchronous rotation of the levers 6 is provided by the axles 5 through the inner shoulders 10 and the couplings 11.

A hammer with movably mounted hydraulic motors 12 operates in a similar manner. The use of additional levers 26, interacting with additional supports 27, allows halving the pressure on the foundation 9 and halving the size of the hydraulic motors 12 in width.

The economic effect of implementing the invention is achieved by increasing the productivity of the punching hammer.

Claims (3)

1. A punching hammer containing a work cylinder dr and chabot mounted on a frame, on which axles with two shoulders are mounted, and mechanisms for turning these levers hydraulically connected to the working cylinder, with the outer arms of the levers hinged to the supports mounted on the sides of the shabot on the foundation movable in a horizontal direction, and the inner shoulders are pivotally connected to each other through an intermediate link, characterized in that, in order to increase productivity by increasing precisely pozitsirovani Chabauty minute, each rotation of the lever mechanism is configured as a pair of hydraulic motor housing, a rotor, with one the element of this pair is a rotor fixed on the axis. 2. Hammer according to Claim 1, characterized in that the other element of the said pair is the housing fixed to the chamfer. 3. Hammer according to claim 1, characterized in that it is provided with additional supports placed on the foundation between the said axles with the possibility of moving in the horizontal direction, the motors of the motors are mounted on the respective axes with the possibility of rotation, with the inner arm of each lever the end is pivotally connected to the corresponding additional support, and the other end is articulated to the case of the corresponding hydraulic motor. FIE