SU1109220A1 - Bending head for pipe-bending machine - Google Patents

Abstract

THE BENDING HEAD OF THE PIPE BENDING MACHINE, containing a body, cantilever mounted on the machine bed, supporting, supporting and bending rollers, are parallelly mounted in the body, characterized in that installation of the support and supporting rollers and two shoulders lever d.1 installation of the bending roller, each lever is installed in the housing with the help of an axis with the possibility of rotation and interchange odeystvi one-armed levers with a double-arm by means of stops disposed at the ends of a two-armed lever, and the single-armed levers are spring-loaded relative to the housing. (L with IND Yu

Description

The invention relates to the processing of metals with a metal, in particular to devices for the bending of pipes by the pushing method.

The known bending head of a pipe bending machine of the machine, comprising a housing that is cantilever-mounted on the bed of the machine, supporting, supporting and bending rollers 1.

A disadvantage of the known head is the impossibility of obtaining several 1o.selective bends on the pipes of a non-irio profile, since the thickened areas do not pass between the onoric and supporting rollers.

The purpose of the invention is to expand the technological capabilities of the bending head by implementing the bending of periodic irofil pipes.

This goal is achieved by the fact that it is flexible (1H); a lever for setting the bending roller, each lever is installed in the housing with the help of an axis with the possibility of rotation and interaction of the single-lever levers with the two-lever with the help of stops placed at the ends of the double-arm lever, and one-armed arms are spring-loaded relative to the body.

FIG. 1 shows a flexible head, side view; in fig. 2 - the same, top view;

in fig. 3 shows section A-A in FIG. 2; on

FIG. 4 - section bb pa fig. 2

The bending head contains body 1, single-arm levers 2 and 3 fixed on axles x 4 and 5 with supporting 6 and supporting 7 rollers, double-arm lever 8 fixed on shaft 9 with bending roller 10. On body 1 of head fixed stops 11 and 12 , to which the arms 2 and 3 are pressed by the springs 13 and 14. The lever 8 is connected through a pinion wiper 15 and 16 to the beater rail 17 of the hydraulic cylinder 18 of the bend mechanism. Rest stops 19 and 20 are placed on the i-e 8 snarl. The stroke of the slide is limited to stops.

The bending head works as follows.

Initially bending roller

10 is retracted from the smallpox pipe by the bend mechanism, while the unors 19 and 20 placed on it interact with the levers 2 and 3, turning them about the axes 4 and 5 and

supporting tap 6 and supporting 7 rollers also from the pipe axis.

The tube blank is inserted between the rollers and secured in the rod of the rotary-clamping head of the tube bending machine. After switching on automatics

the cycle, the clamping head with the workpiece (not shown) is retracted to the extreme rear position, in this case the reduced sections pass freely between the retracted rollers.

After reversing the movement of the turn-clamp, the head with the workpiece, according to the program incorporated in the command device, bends.

To get the double arm 8 bend, the BOB (; rocking together with the shaft 9 through the ribs 15 and 16 of the rake 17 of the hydraulic dial 18, the bend of the tube. The angle of the gpba is determined by the magnitude of the stroke of the rotary clamp of the multi-head pushing the workpiece into the bending head.

When the two shoulders rycha 8 is rotated, the parallels stops 19 and 20 move away from the levers 2 and 3, which by the springs 13 and 14 are pressed against the stops 11 and 12.

When pushing the pipe by force, the bend arms 2 and 3 are pressed against the stops 11 and 12, the support 7 and the supporting 6 rollers are fixed.

After the end of the bend, the double-arm lever 8 returns to its original position and at the end of the turn, with stops 19 and 20 on

levers 2 and 3; the support 7 and supporting 6 rollers retract from the pipe axis, ensuring free pushing of the reduced (enlarged diameter) pipe sections.

Aa

 Fig.i

Claims (1)

BENDING HEAD OF A TUBING MACHINE, comprising a housing cantileverly mounted on the machine bed, support, supporting and bending rollers mounted in parallel in the housing, characterized in that, in order to expand technological capabilities by bending pipes of a periodic profile, the head is equipped with a pair of one-arm levers for installation supporting and supporting rollers and a two-arm lever for installing the bending roller, each lever is mounted in the housing using an axis with the possibility of rotation and interaction Via one-armed levers with a double-arm by means of stops disposed at the ends of a two-armed lever, and the single-armed levers are spring-loaded relative to the housing. Fig. 1 i109220