RU53600U1 - DEVICE FOR STAMPING TRANSVERSE RIFTS ON PIPES - Google Patents

Abstract

A device for stamping transverse rifts on pipes relates to the processing of metals by pressure, in particular for molding by an elastomer, and can be used for forming rifts on pipes of various lengths.

The inventive device for stamping transverse rifts on pipes consists of a pressure washer, a deformation sleeve of elastomer, a thrust washer located on the rod inside the split matrix, and a support pipe. A feed washer and an intermediate washer are installed on the stem, and between them a pressure sleeve made of elastomer, which are fixed by a split washer in the grooves on the stem.

This device for stamping rifts on pipes can reduce thinning of the material in the rift zone, which will increase the strength, reliability and resource of the part.

Description

A device for stamping transverse rifts on pipes refers to the processing of metals by pressure, in particular for molding by an elastomer, and can be used for forming rifts on pipes.

A device for forming radially corrugated pipes is known, consisting of a detachable matrix that opens or closes during stamping, a rubber punch — washers, a punch support and a pressure rod (Isachenkov E.I. Stamping with rubber and liquid - M .: Mechanical Engineering, 1967. p. 347, Fig. 219).

The disadvantage of this device is the insufficient supply of the workpiece to the deformation zone, which does not significantly reduce the thinning of the pipe material in the rift region.

Closest to the proposed device is an installation for stamping tubular parts with an elastic medium containing a pressure washer, deforming sleeves made of elastomer, a thrust washer located on the rod inside the split matrix, and a support tube (Komarov A.D., Trotsevsky Yu.V., Shchegolevatykh V., D., et al. Formation of rifts by elastic medium on pipes of large diameter. - Forging and stamping, 1979, No. 10, p. 26).

A disadvantage of the known device is the low quality of the resulting part due to significant thinning in the rift zone.

The task is to develop a device that can improve the quality of pipes with rifts by reducing and even completely eliminating thinning of the material.

The problem is solved due to the fact that in the device for stamping transverse rifts on the pipes, consisting of a pressure washer,

a deforming sleeve of elastomer, a thrust washer located on the rod inside the detachable matrix, and a support pipe, according to a utility model, a feed washer, a pressure sleeve of elastomer and an intermediate washer are installed on the rod, which are fixed with a split washer in the grooves on the rod.

The essence of the utility model is illustrated by drawings, where in Fig.1 shows a device at the initial stage of the process, Fig.2 - at the final stage of the process.

The proposed device consists of a rod 1, on which, using a split washer 2, a pressure washer 3 is fixed. A rod 1 of an elastomer 4 and a thrust washer 5 are mounted. A stop on the preformed rift 7 is fixed to the detachable matrix 6 on the pipe 8. Support a pipe 9 is installed between the thrust washers 5 and 10. The feed washer 11, mounted on the stem 1, abuts against the end of the pipe 8 and receives the force from the pressure sleeve from the elastomer 12 and the washer 13. They, in turn, are fixed by a split washer 14. Split washers set vayutsya in grooves made on the rod 1.

The device operates as follows. In the open matrix 6 is placed a deformable pipe 8, which is worn on the deforming sleeve 4. The halves of the matrix 6 are reduced to the pipe 8 and are locked (the locking device is not shown conventionally). When the rod 1 moves to the right, the force is transmitted to the pressure washer 3. The washer 5 abuts against the support pipe 9. Under the action of this force, the sleeve 4 is compressed. When the pressure sleeve is pressed from the elastomer 12 located between the washers 11 and 13, the feed washer 11 is smoothly pressed the end face of the deformable pipe 8, and the workpiece is fed into the deformation zone. When the sleeve 4 is compressed, the pipe deforms along the working contour of the matrix 6. At the end of the deformation process, the rod 1 returns to its original position, the halves of the matrix 6 open, the pipe 8

moves to a predetermined pitch of the rifts, and the feed washer 11 moves all the way to the end of the pipe together with the sleeve 12 and the washer 13. The split washer is fixed in the next groove made on the rod 1. The grooves are made with a step equal to the distance between the rifts.

Thus, this device provides the supply of the workpiece in the deformation zone, which reduces the thinning of the material in the rift area.

Claims (1)

A device for stamping transverse rifts on pipes consists of a pressure washer, a deforming sleeve of elastomer, a thrust washer located on the rod inside the detachable matrix, and a support pipe, characterized in that a feed washer and an intermediate washer are installed on the rod, and between them a pressure sleeve elastomers that are fixed with a split washer in the grooves on the stem.