SU1590158A1 - Arrangement for bending pipes - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to devices for bending pipes. The purpose of the invention is to increase productivity by facilitating the removal of the product and expanding technological capabilities by providing flexible U-shaped products with curved ends on the shelves. The device contains a base, a template (W), a W setting mechanism, matrix supports (MO) and support rollers placed symmetrically on the basis of the device axis. MO are made in the form of two L-shaped double-arm levers with bending rollers at the ends and with additional rollers on large arms. The levers are pivotally mounted on the drive fork. W is made in the form of two semi-cylinders (П), pivotally connected with each other, and two tons of r pivotally connected with P and with the setting mechanism W and spring-loaded to each other. During the working stroke, the bending rollers interact with the workpiece, P opens, M rotates and bends. During the return stroke P, converge and push the product. The use of pivotally connected PTs makes it easier to remove the product. 2 hp f-ly, 3 ill.

Description

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

The purpose of the invention is to increase productivity by facilitating the removal of the product after bending and expanding technological capabilities by providing the possibility of bending U-shaped products with curved ends on the shelves.

FIG. 1 shows the device at the end are flexible, general view; in fig. 2 - the same, in the initial position after bending; in fig. 3 is a view A of FIG. one.

The device contains a base 1, placed on the base of the drive fork 2, mounted on the plug matrix supports, made in the form of L-shaped unequal arms 3 with bending rollers 4 at the ends. The large arms of the arms are made with additional rollers 5 in the middle.

Based on 1, a template and a template configuration mechanism are placed. The template is made in the form of two semi-cylinders 6, two edges of which are pivotally connected with one another, and two tons of g 7, pivotally connected with each other by a spring Vis semi-cylinders 6. The template adjustment mechanism is designed as a composite body 9 mounted in a nut case 10, a screw 11 placed in the nut 11, a hinged 7 template, a central stop 12 placed on the body 9 between the legs 7, two limiters 13 reversal of half-cylinders placed on the body symmetrically relative to the device axis, and two limiters 14 converging semi-cylinders Placing on the connecting rods 7 template. In addition, on the base I, two support rollers 15 are mounted symmetrically with the axis of the device for bending the ends of the product shelves.

The device works as follows.

SP

with

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When working, the force is transmitted to the T-shaped levers 3, the bending rollers 4 act on the workpiece. The half cylinders 6 begin to unfold until the pattern 7 is in contact and limit €: lei 13. The matrix supports begin to turn and bend the product. During the reverse course of the matrix supports, the semi-cylinders 6 begin to converge under the action of the spring 8 until the stops 14 touch the central stop 12. The template is adjusted by rotating the nut 10. At the same time, the screw 11 moves the pattern to the specified position.

The use of the device simplifies the removal of the product by using pivotally connected template half-cylinders.

Claims (3)

1. A device for bending pipes containing a template on a base in a holder and matrix supports made in the form of double-arm levers with bending rollers at the ends pivotally connected in the middle part q with a fork with a possibility of swinging in the plane of bending, characterized in that the purpose of increasing productivity by facilitating the removal of the product after bending, the fork is driven Each double-arm lever is made L-shaped and unequal-arm, the short arms of the levers are located on the axis of the device, and the large arms of the arms are made with additional rollers in the middle part, the template is made in the form of two half-cylinders, two edges of which are articulated with one another, and two tg, which are hingedly mounted in a holder and connected with one another by a spring, as well as with corresponding half-cylinders. 2. The device according to claim 1, characterized in that it is provided with a template setting mechanism, made in the form of a composite body, placed on the base, of a nut, mounted in a body, placed in a nut and rigidly connected to the screw holder, two reversal half-cylinders, mounted symmetrically on the body, two limiters of the approach of the semicylinders mounted on the rods, and a central stop located on the body between the template rods. 3. The device according to paragraphs. 1 and 2, characterized in that, in order to expand technological capabilities by providing flexible U-shaped products with curved ends on the shelves, it is equipped with additional bending rollers placed symmetrically on the base of the device axis. 9 W to eleven tshtt Editor And, Shmakov Order 2597 Compiled by A. Kolganov Tehred A. KravchukKorrektor A. Obruchar Circulation 603 Subscription VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and publishing combine “Patent, Uzhgorod, ul. Gagarin, 101 FIG. g Bad / I n jm tsh tsh .d