SU871901A1 - Apparatus for producing necks on tubes - Google Patents

Description

(54) DEVICE FOR THE MAKING OF THE MOUTH ON THE PIPES

I

The invention relates to the processing of metals by pressure, in particular, to devices for making necks on pipes.

A device for manufacturing necks on pipes is known, which comprises a rotatable working member mounted in a housing with a forming head and a support 1.

A disadvantage of the known device is the ability to manufacture the throats of various sizes and the complexity of control and readjustment.

The purpose of the invention is the expansion of technological capabilities and simplification of operating conditions.

This goal is achieved due to the fact that in a device for making necks on pipes, containing a rotatable working member installed in a housing with a forming head and a support, the housing is made in the form of a replaceable sleeve with a through end groove in the shape of the pipe being machined, a triangular plate hinged on a rotatable working body, the base length of which is equal to the inner diameter of the neck to be manufactured.

In addition, the device is equipped with an additional sleeve mounted on a rotatable working body with the possibility of axial movement, while the support is made in the form of profiled rollers. FIG. 1 shows the proposed device, a general view; in fig. 2 - view A

in fig. one.

. . In the device, the replaceable case 1 is fixed on the rack 2 and is made in the form of a sleeve with a through end recess, on which

The fO supports the pipe 3 being worked. On the opposite side, the pipe rests on roller bearings 4 and 5. The shaping head 6 is designed as a triangular plate hinged on a rotary tool 7. Body 7 is wearing

15 an additional sleeve 8 fixed by screw 9.

The device works as follows.

Processed pipe set

on rollers 4 and 5. Plate forming

heads 6 are introduced into an additional sleeve 8, which is lowered until it comes into contact with the pipe being processed. The rotary member 7 enters the hole in the pipe, where

the plate rotates on a hinge and occupies a working position.

The housing 1 is pressed against the pipe 3 through the end recess. The rotary member is connected to a drive (not shown), for example a drilling machine. Plate b is rotated and moved in the axial direction, flanging along the inner surface of the sleeve 1, the neck of the pipe.

The replacement and simplicity of the nodes of the proposed device provides the manufacture of necks of various sizes. The ability to connect to machine tools simplifies its operation.

Claims (2)

Invention Formula . A device for making necks on pipes, comprising a rotary tool with a forming head mounted in a housing and a support, characterized in that, in order to expand technological capabilities and simplify operating conditions, the housing is made in the form of a replaceable sleeve with a through end groove in the shape of the pipe being processed, and the molding head is made in the form of a triangular plate hinged on the rotary tool, the base length of which is equal to the inner diameter of the neck to be manufactured. 2. The device according to claim 1, characterized in that it is provided with an additional sleeve mounted on a rotatable working member with the possibility of axial movement, while the supports are made in the form of profiled rollers. Sources of information taken into account in the examination 1. UK patent number 1489558, cl. In 3 J, 1977.