SU1409399A1 - Die for cubic strain - Google Patents

Abstract

H dHiv-ifMiK ol foot to the area MaiiiMHocTp (ie; iHH, namely to devices for oG) 1, (or de () ormir () billet. Ts.p.) aciiinpi.MiHf 1 exio.ungic.x capabilities, reduction metal intensity and dimensions of the stamp. In the stamp on the upper liner; there are two hydraulic cylinders, a mechanism for synchronizing the movement of piston-Hcii cylinders in the form of L-shaped crown-HJTCHHOB, placed on an intermediate plate. One ends of the joints are articulated with the intermediate plate, while others are connected with the adjusting screws to the fluid supply valves in the cavities of the hydraulic cylinders. Shtamp allows you to synchronize the movement of the pistons with the guide of the 1-cylinder and regulate the movement of the intermediate plate with the semi-matrix placed on it. 3 h. n. f-ly, 3 ill.

Description

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The invention relates to mechanical engineering and can be used for stamping parts and bulk metal blanks from a sheet.

The aim of the invention is to expand the technological capabilities of the stamp.

FIG. 1 shows a device with one hydraulic cylinder mounted coaxially with the central shank of an intermediate plate; in fig. 2 - a stamp with two hydraulic cylinders and a mechanism for synchronizing the movement of the pistons of hydraulic cylinders; in fig. 3 is a diagram of the principle of the synchronization mechanism.

The stamp (Fig. 1) has columns 1, fixed in the bottom plate 2, intermediate plate 3. In the guides of the intermediate plate 3 columns 1 the top plate 4 is fixed, in which is installed a hydraulic cylinder 5 with a hole 6 for supplying and discharging working fluid connected to the working cavity 7 and an additional 20 working cavity 8 of the hydraulic cylinder 5, and with an opening 9 for supplying and discharging the working fluid connected to the return cavity 10 of the hydraulic cylinder 5. The housing II of the hydraulic cylinder 5 is inserted into the hole of the upper plate 4 in such a way that the piston is 12 25 g and the hydraulic cylinder 5 y installed coaxially with the shank 13 of the intermediate plate 3. The piston 12 is connected to the shank 13. Between the lower plate 2 and the intermediate plate 3, a matrix block 14 is installed, containing the upper 15 and the lower 16 matrix.

The stamp (Fig. 2) has four columns 1, fixed in the bottom plate 2, the intermediate plate 3 not connected with columns 1.

Columns 1 have an upper plate 4 fixed in which hydraulic cylinders 5 are installed with openings 6 for supplying and discharging working fluid connected respectively to working cavities 7 and additional working cavities 8 of hydraulic cylinders 5 and with openings 9 for supplying and discharging working fluid 40, 10 cylinders 5, respectively connected to the return cavities.

Cases 11 hydraulic cylinders 5 are inserted into the holes of the upper plate 4, located between the respective pairs of columns 1 in such a way that the pistons 12 hydraulic cylinders 5 are installed respectively coaxially to the shank 13 of the intermediate plate 3.

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intermediate plates 3. The brackets 18, respectively, interact with the pushrod of the hydraulic valves 17. The hydraulic valves 17, respectively, are mounted on the brackets 18, having longitudinal vertical grooves 19, in which the guide rails 20 are installed, fixed with hinges parallel to the mounted levers 21 on the upper plate 4.

To drive the hydraulic cylinders 5 of the stamp (Fig. 2), the use of a mobile double-flow pumping unit 22 installed in the immediate vicinity of the stamp is assumed. In order to adjust the synchronization mechanism, the adjusting screws 23, which interact with the hydraulic valve pushers 17, are installed in the brackets 18. By means of the hydraulic lines 24, the valve valve cavities 17 are respectively connected to the openings 6 of the hydraulic cylinders 5.

The subvalvular cavities of hydrovalves 17 are connected by a hydroline 25 with a hydraulic tank.

Before commissioning the stamp (Fig. 2), a synchronization mechanism must be set up, as follows.

Pre-set the desired position of the intermediate plate 3 relative to the bottom plate 2.

Then, with the fixed position of the intermediate plate 3, the gaps between the pushers, the shut-off elements of the hydraulic valves 17 and the adjusting screws 23 are selected with the adjusting screws 23, while ensuring the position of the shut-off elements, in which their valve cavities are cut off from the subvalvate cavities, and hence from the hydrolines 25 of the drain.

The stamp (Fig. 2) works as follows.

When pumping fluid 22 is pumped into the openings 6 of the hydraulic cylinders 5, the pistons 12 of the hydraulic cylinders 5 are displaced downward, moving the intermediate plate 3 towards the lower plate 2. At the same time, the guide bars 20 keep the plane-parallel mixing of the levers 18 moving relative to the fixed parts of the die together with the intermediate slab 3.

With the in-phase movement of elements 12, the hydraulic valves P remain closed

(Fig. 2 and 3). When ahead, for example, by the piston 12 of the left hydraulic cylinder 5, the pistons 12 are respectively connected to the CQ piston 12 of the right hydraulic cylinder 5 (FIG. 4) by the shanks 13. Between the bottom plate 2 and the left hydraulic valve 17, the matrix block 14 is installed, containing the top 15 and bottom 16 matrix.

A synchronization mechanism mounted on the stamp (Fig. 2) contains two mechanically controlled hydraulic valves 17, two brackets 18 mounted on hinges 19 on the end parts 20 and 21 of the pro55

The liquid entering the hole 6 of the left cylinder starts to flow to the drain through the left valve 17. As a result, the speed of movement of the left cylinder of the left cylinder 5 decreases and the in-phase movement is restored, with which both hydraulic valves 17 are closed. The same process is repeated when

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intermediate plates 3. The brackets 18, respectively, interact with the pushrod of the hydraulic valves 17. The hydraulic valves 17, respectively, are mounted on the brackets 18, having longitudinal vertical grooves 19, in which the guide rails 20 are installed, fixed with hinges parallel to the mounted levers 21 on the upper plate 4.

To drive the hydraulic cylinders 5 of the stamp (Fig. 2), the use of a mobile double-flow pumping unit 22 installed in the immediate vicinity of the stamp is assumed. In order to adjust the synchronization mechanism, the adjusting screws 23, which interact with the hydraulic valve pushers 17, are installed in the brackets 18. By means of the hydraulic lines 24, the valve valve cavities 17 are respectively connected to the openings 6 of the hydraulic cylinders 5.

The subvalvular cavities of hydrovalves 17 are connected by a hydroline 25 with a hydraulic tank.

Before commissioning the stamp (Fig. 2), a synchronization mechanism must be set up, as follows.

Pre-set the desired position of the intermediate plate 3 relative to the bottom plate 2.

Then, with the fixed position of the intermediate plate 3, the gaps between the pushers, the shut-off elements of the hydraulic valves 17 and the adjusting screws 23 are selected with the adjusting screws 23, while ensuring the position of the shut-off elements, in which their valve cavities are cut off from the subvalvate cavities, and hence from the hydrolines 25 of the drain.

The stamp (Fig. 2) works as follows.

When pumping fluid 22 is pumped into the openings 6 of the hydraulic cylinders 5, the pistons 12 of the hydraulic cylinders 5 are displaced downward, moving the intermediate plate 3 towards the lower plate 2. At the same time, the guide bars 20 keep the plane-parallel mixing of the levers 18 moving relative to the fixed parts of the die together with the intermediate slab 3.

With the in-phase movement of elements 12, the hydraulic valves P remain closed

(Fig. 2 and 3). When the piston 12 of the left hydraulic cylinder 5 Q of the piston 12 of the right hydraulic cylinder 5 (Fig. 4) is ahead, the left hydraulic valve 17 opens and the

The liquid entering the hole 6 of the left cylinder starts to flow to the drain through the left valve 17. As a result, the speed of movement of the left cylinder of the left cylinder 5 decreases and the in-phase movement is restored, with which both hydraulic valves 17 are closed. The same process is repeated when

ahead of the piston 12 of the right hydraulic cylinder 5 of the piston 12 of the left hydraulic cylinder 5, only in this case the right hydraulic valve 17 opens.

The design features of the synchronization mechanism provide a high degree of sensitivity.

Claims (4)

1. A stamp for volumetric deformation, comprising an upper plate with a hydraulic cylinder with a working cavity and a return cavity, an intermediate and lower plate with guide columns, a matrix block placed between the lower and intermediate plates, and a hydraulic system with a hydraulic tank, characterized in that in order to reduce metal consumption and dimensions and expand technological capabilities, it is equipped with an additional hydraulic cylinder mounted on the top plate, the pistons of the hydraulic cylinders are connected to the intermediate plate, the housing of each hydraulic The cylinder forms with the piston an additional cavity and is made with channels connecting the cavities of the hydraulic cylinders with the hydraulic system. 0 five 0 five 2. A stamp according to claim 1, characterized in that the intermediate plate is made in the form of a crosspiece and is mounted for movement along columns. 3. Stamp on PP. 1 and 2, characterized in that it is equipped with a synchronization mechanism for displacing the pistons of hydraulic cylinders. 4. Stamp on PP. 1-3, characterized in that the mechanism for synchronizing the movement of the pistons of the hydraulic cylinders is made in the form of L-shaped brackets, pivotally mounted on an intermediate plate, the vertical posts of which are made with longitudinal grooves; the brackets are equipped with slats mounted with a possibility of movement in grooves and pivotally connected to the upper The hydraulic plate, as well as the adjusting screws installed at their free ends, the hydraulic system at the inlet of the hydraulic cylinders is equipped with valves with pushers installed with the ability to Interaction of with said adjustment screws, the channels being connected to the hydraulic cylinder body cavities inlet valves and their output cavity - a hydraulic reservoir. 89th .11 X FIG. one te fS 15 Fig 2 18