SU1368070A1 - Die for manufacturing articles of "hinge" type - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to bending dies for the manufacture of loop-type products from sheet blanks. The purpose of the invention is to improve the quality of fia products by the top plate 1 fixed part 2 of the matrix (M) with bending groove 3 and counter press 4. as well as a wedge 5. A punch (P) 8 is fixed on the bottom plate with a supporting platform 9 for the workpiece 10 and a single-arm bending lever 13, which interacts with a spring-loaded latch 16 and a rigid latch 17. The second part 18 tL is attached to the bending lever Pressing the press downwards, the wedge 5 turns the bending lever 13, to the part 18 M, the flexible workpiece 10 is carried out on the bending edge 11 P 8. With further downward movement, part g 2 M bends the edge of the workpiece 10. P 8 has a rigid support, which allows Calibrate the product at the end of bending. 3 il.

Description

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The invention relates to the processing of metals by pressure, in particular to bending dies.

The purpose of the invention is to improve the quality of products.

FIG. 1 shows a stamp at the beginning of the working stroke (slider at the upper dead center) in FIG. 2 - the same, in the middle of the stroke of the press ram at the moment when the bend of the part is formed in FIG. 3 - the same, at the end of the working stroke of the press ram.

The stamp contains a movable upper plate 1, on which the matrix part 2 is fixed with a bending groove 3 and an anti-compressing 4, as well as a wedge 5 guided along the surface of the groove in the holder 6 mounted on the lower plate 7. In the holder 6 a punch 8 is fixed with a supporting platform 9 for the workpiece 10 with a bending edge 11 and a bending edge 12.

In the holder 6 is also fixed single-arm bending lever 13 on the axis 14, having a roller 15, interacting with a wedge 5, as well as a spring-loaded latch 16 and an adjustable rigid latch 17, placed opposite each other on opposite sides of the bending lever 13 and interacting with bending lever 13. secured the second part 18 of the matrix with a concave working surface.

The stamp works as follows. In the initial position of the press slider, the bending lever 13 is under the action of the clips 16 and 17, forming a gap between the die part 18 and the punch 8 for placing the workpiece 10. The workpiece 10 is fed, for example, by a robot hand and lowered onto the support platform 9 of the punch 8. During the slide movement Press down the wedge 5 rotates the bending lever 13 with the matrix part 18, which bends the workpiece 10 on the bending edge 11. Punch 8

During further downward movement of the slide, the matrix part 2 bends the edge of the workpiece along the bending edge 12, while the anti-pinch 4 slides along the holder 6, preventing mixing

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part of the matrix. When the press ram is brought back along with the top plate 1 up, the bending lever 13 is returned by the latch 16 to its original position, and the part 18 is removed.

Roller, rolling on the wedge, eliminates sliding friction, which prevents wear of working surfaces. A part of the matrix, mounted on a bending lever, is replaceable, which improves the maintainability of the stamp.

The punch has a rigid support and allows rigid compression of the part at the end of the working stroke, which improves its quality.

The increased gap between the punch and the die formed in the initial position of the press makes it easy to install and remove the part, which makes it possible to integrate it into the robot system.

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formula of invention

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A stamp for the manufacture of loop-type products from sheet blanks, comprising upper and upper plates, a punch with a bending edge and a bending edge, a matrix with a concave working surface and a groove in the shape of the bending edge of the punch, as well as a holder mounted on the bottom plate, differing in that, with the aim of improving the quality of products, it is equipped with a single-arm bending lever installed in the holder with a roller fixed in the holder on opposite sides of the bending lever, elastic and rigid lever retainers and a wedge, fixed m on the top plate and interacting with the roller of the bending lever, the matrix is made up of an integral part with a concave working surface and a part with a groove, while the first of these parts is fixed on the bending lever, the second is mounted on the top plate and is made with anti-compression, and the punch is on the bottom plate and made with a support platform for the workpiece.

L. Langazo

W 18 / J75 5

FIG. 2

Compiled by V. Grigorieva Tehred M. Khodanych

 Cor

 Proofreader L. Pilipenko

Claims (1)

Claim A stamp for manufacturing products such as a loop from sheet blanks containing a lower and upper plate, a punch with a bending edge and a bending edge, a die with a concave working surface and a groove in the shape of the bending edge of the punch, and a holder mounted on the bottom plate, characterized in that, with the aim of improving the quality of products, it is equipped with a single-arm bending lever installed in the holder with a roller, mounted in the holder on opposite sides of the bending lever, elastic and rigid lever clamps and a wedge fixed on the upper plate and the bending lever interacting with the roller, the matrix is made up of a part with a concave working surface and a part with a groove, the first of these parts mounted on the bending lever, the second on the upper plate and made with anti-spin, and the punch on the bottom plate and is made with a support platform for the workpiece. FIG.! Figure 2