SU1192881A1 - Arrangement for bending u-shaped articles - Google Patents

Abstract

DEVICE FOR BENDING OF P-SHAPED PRODUCTS, mainly from pipes, containing a bending template in the form of two discs installed with the possibility of reciprocating and adjusting nepei. : - spacers in the plane of bending, mechanism for fixing the workpiece in the position of bending levers with rotational drive, plates with bending roller, installed in each lever with reciprocating movement from the drive in the direction of the corresponding disk of the template, and mechanisms for fixing plates with bending roller in the flexible position, characterized in that, in order to improve quality by ensuring reliable fixation of the plates with a bending po, face, the fixation mechanism of each of these plates is made in the form of spring-loaded on from other sliders with cams, having end planes located at an angle to the direction of movement of the plate. With a bending roller, plates with a window having planes that are at an angle to the direction of movement of the plate with the flexible roller, with the last guide for the sliders, in the guide arms, the grooves for placing the ends of the sliders, the plate with the window is connected to the plate drive with a bending roller, and the cams are arranged to interact with their face planes with the window planes. 1HE 00 00

Description

The invention relates to the processing of metals by pressure, in particular to devices for the bending of tubes around fixed elements.

The purpose of the invention is to improve the quality of bending by more reliable fixation of the bending roller in the working position.

Figure 1 shows the device, a general view; figure 2 - the bending unit., the original position; on fig.Z the same, the moment of the beginning are flexible.

The device consists of a bed 1 on which the guides 2 and the clamping mechanism 3 are mounted. In the guides 2 there are mounted plates 4, on each of which the actuator 5 is rotated of the levers 6. On the shaft 7 of the actuator 5 there is a bending pattern 8, made in the form of a disk, and the lever 6. In the guides 9 of the lever there is a plate 10 with bending a roller 11 and a plate 12 connected to the rod 13 of the power cylinder (not shown). The groove 14 of the plate 10 contains fixators 15, spring-loaded 16. The plate 12 has a window 17 with wedge surfaces 18, with which wedge surfaces 19 interact, executed on the protrusions of the latches 15. In the guides 9 are made, grooves 20 interacting with the latches 15.

The device works as follows.

The workpiece 21 is laid in the streams of the bending template 8 and clamped

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3 clamping mechanism. Then include. with the power cylinders, which are driven by the rod 13 to the plate 12. In this case, the clips 15 slides along

5 guides 9 and carry along; plates 10 with a bending roller 11. At the end of the stroke of the plates 10, the clamps 15 under the action of the spring 16 enter the grooves 20, fixing the position of the plates 10 relative to the levers 6. The actuators 5 rotate the levers 6, ensuring the bending of the workpiece 21 at a predetermined angle. The force arising from this is flexible through the roller 11jplate 10 and the latches 15 is perceived by the guide 9 of the levers 6 and is not transmitted to the power cylinder.

At the end of the flexible levers 6 returns to its original position. Each cylinder through the rod 13 begins to move the plate 12 to its original position. While the wedge surface 18 of the window 17 act on the wedge surface 19 of the clamps 15, the output of the last of the slots 20. Stove

25 .1 is released. With further

the movement of the plate 12 window 17 through the protrusions of the clamps 15 removes the plate 10 with bending rollers 11 to its original position. Plate 4 bring together, freeing the bent part. After removal of the part, the plate 4 is returned to its original position, then the cycle of operation of the device is repeated.

Due to a more reliable fixation of the bending roller in the process of bending, the quality of bending and production is higher in-d. tolerance.

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Claims (1)

DEVICE FOR BENDING U-SHAPED PRODUCTS, mainly from pipes, containing a bending template in the form of two disks installed with the possibility of a reciprocating adjusting transition. with a bending roller installed in the guides of each lever with the possibility of reciprocating movement from the drive in the direction of the corresponding disk of the template, and mechanisms for fixing plates with the bending roller in the bending position, characterized in that, in order to improve quality by ensuring reliable fixation of plates with bending rook, face, each fixing mechanism. of these plates is designed as a spring-loaded one another polzushek with cams having face planes disposed at an angle to the direction of movement of the plate with the bending roller, the window plate having a plane disposed at an angle to the direction of plate pereme- _β tions with the bending roller, S at the same time, the guides for the cogs are made in the latter, in the lever guides there are grooves for placing the ends of the crawls * the plate with the window is connected to the drive of the plate with the bending roller, and the cams are installed with the possibility of interaction between their ends planes with window planes. SU „., 1192881 ί