SU1523229A1 - Arrangement for reducing the couplings on hose ends - Google Patents

Abstract

The invention relates to mechanical engineering and, in particular, to power devices for connecting hoses to rigid couplings. The device contains plates 2, 3 with grooves 4, 5 in which the hydraulic cylinder and the composite matrix 8 are fixed. To reduce the piston stroke and, consequently, reduce the overall dimensions of the device, each element of the matrix is mounted for movement along and perpendicular to the axis of the matrix. The element farthest from the piston has the ability to move only perpendicular to the axis of the matrix. 3 il.

Description

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The invention relates to mechanical engineering, in particular, to devices for crimping couplings at the ends of the sleeves, and is intended for mechanization of assembly work during the sealing of the ends of high pressure hoses of a non-separable structure.

The purpose of the invention is to reduce the size of the device.

FIG. 1 shows a device, a general view; in fig. 2 is a view A of FIG. one; in fig. 3 is a section BB in FIG. one.

The device for crimping the sleeves at the ends of the sleeves consists of a base 1, a housing consisting of two plates 2 and 3, provided with grooves 4 and 5, arranged opposite each other. A cylinder 6 is fixed into the grooves 4, fastened with screws 7, and a matrix consisting of at least two parts is freely inserted into the grooves 5. To increase the overall rigidity of the device, the plates are studded with a pin 9. The hydraulic cylinder contains a front piston 10 and a rear piston 11 . To the front piston 10, clamping jaws 13 are fixed by means of the faceplate 12, which can move along the radial grooves of the faceplate 12. The axial bore 14 of the front piston 10 serves to install the mandrel 15 with the assembled sleeve including the tip 16, the coupling 17 and sleeve 18.

The device works as follows.

In the initial position, the crimping cams 13 are divorced and form a gauge with a diameter greater than the diameter of the coupling 17. A mandrel 15 is installed in the sleeve 18 with the tip 16 and the coupling 17 mounted on it and inserted into the axial bore 14 of the piston 10 until it stops. Then piston 10 with crimping jaws 13 by supplying oil to the piston cavity of the rear piston 11 and the rod cavity of the front piston 10 moves to the right (Figs. 1 and 3) - the working stroke is made. At the same time, the crimping cams 13, the entrance to the cone of the matrix 8, are closed in the radial direction until the clutch 17 is fully compressed. After the end of the working stroke

(crimping process) the oil is fed into the brush cavity of the rear piston 11, while the piston 10 with the crimping jaws 13 is moved to the left (Fig. 3), the jaws are diluted, and the crimped sleeve is removed.

In order to switch to a different size of the sleeve, it is necessary to remove the matrix 8, which is loosely installed in the slots 5, understand the faceplate 12 with the crimping jaws 13 and place the matrix in place. Reducing the stroke length of the piston of the cylinder and the associated cams is achieved due to the fact that when the piston retracts to its original position by half the thickness of the matrix, the first half of the matrix is freely removed, the second half of the matrix is also freely removed when moving to the right half. from the slots of the housing plates.

Reducing the stroke of the piston of the cylinder allows increasing the rigidity of the structure, reducing the metal consumption, and increasing the convenience of servicing (it is easier to remove the matrix divided into two parts). The increased rigidity of the structure ensures the technological performance of crimping the entire range of hoses used.

Claims (1)

Invention Formula A device for crimping couplings at the ends of the sleeves, comprising a hydraulic cylinder mounted in the housing with a piston, front and rear covers, a removable die with a tapered bore, and conical crimping cams cooperating with the die, characterized in that, in order to reduce the dimensions, the die is made of at least two elements, the plane of the connector of which is perpendicular to the axis of the matrix, the farthest element, counting from the piston, is mounted for movement in the plane of the connector, and the remaining elements - with the possibility This is the displacement in the separation plane and along the axis of the matrix. / f ; / } b eight / . / Fce.g