CN211803238U - Steel pipe bending deformation-resistant tool - Google Patents

Abstract

The utility model discloses a crooked anti deformation instrument of steel pipe, including the rectangle steel pipe and preset the three shaping roller that crooked curved surface is used for crooked rectangle steel pipe, it has four circumference lateral walls and the laminating of rectangle steel pipe inner wall and along with rectangle steel pipe bending deformation's toughness core to peg graft in the rectangle steel pipe, prevents that sunken deformation phenomenon from appearing in the rectangle steel pipe. Adopt toughness core, insert inside the back of rectangular steel pipe, can follow the deformation in step along with the rectangular steel pipe is crooked to play and resist the rectangular steel pipe surface and take place sunken phenomenon because of the bending, the whole that clamp splice, locating pin, rings are constituteed is used for pressing from both sides tight fixed toughness core before the shaping, is convenient for install the core in the rectangular steel pipe, after bending, through outside electric motor, hang the couple on rings, make the core take out from the rectangular steel pipe.

Description

Steel pipe bending deformation-resistant tool

Technical Field

The utility model belongs to the technical field of the steel pipe is crooked, especially, relate to a crooked anti-deformation instrument of steel pipe.

Background

When traditional rectangular pipe shaping, generally adopt and add rigid core in inside for square pipe is at bending forming, resists the concave curved deformation of square pipe, because rigid core can not be along with steel pipe bending deformation together, can only play the anti deformation effect at the crooked initial stage of steel pipe, along with crooked further going on, the unavoidable emergence concave deformation phenomenon of square pipe makes return bend surface forming state relatively poor, has influenced follow-up processing and has used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a crooked anti deformation instrument of steel pipe to solve the problem of background art.

In order to achieve the above object, the present invention provides a steel pipe bending deformation-resistant tool, which comprises:

the utility model provides a crooked anti deformation instrument of steel pipe, includes rectangle steel pipe and the preset three shaping roller that crooked curved surface is used for crooked rectangle steel pipe, it has four circumference lateral walls and the laminating of rectangle steel pipe inner wall and along with the toughness core of rectangle steel pipe bending deformation to peg graft in the rectangle steel pipe, prevents that the sunken deformation phenomenon from appearing in the rectangle steel pipe.

Furthermore, the toughness core comprises a PVC toughness column and protective steel plates symmetrically connected to the upper side and the lower side of the PVC toughness column.

Furthermore, the protection steel plate is attached to the inner side wall of one side, extruded by the forming roller, of the rectangular steel pipe.

Furthermore, one end of the toughness core is connected with a pulling-out device which is convenient for pulling the toughness core out of the rectangular steel pipe.

Furthermore, the pulling-out device comprises a clamping block with one end provided with a U-shaped groove, and the clamping block penetrates through a toughness core inserted in the U-shaped groove of the clamping block through a positioning pin to be fixedly connected with the toughness core.

Furthermore, the clamping blocks are positioned on two side walls of the U-shaped groove and provided with positioning holes for the positioning pins to pass through.

Furthermore, the pulling-out device also comprises a hanging ring connected with one end of the clamping block, which is far away from the tough core.

Furthermore, the lifting ring is screwed into a thread groove formed at one end of the clamping block, which is far away from the toughness core, through a screw thread connected with the lifting ring in an integrated manner.

Compared with the prior art, the utility model discloses following beneficial effect has: adopt toughness core, insert inside the back of rectangular steel pipe, can follow the deformation in step along with the rectangular steel pipe is crooked to play and resist the rectangular steel pipe surface and take place sunken phenomenon because of the bending, the whole that clamp splice, locating pin, rings are constituteed is used for pressing from both sides tight fixed toughness core before the shaping, is convenient for install the core in the rectangular steel pipe, after bending, through outside electric motor, hang the couple on rings, make the core take out from the rectangular steel pipe.

Drawings

FIG. 1 is a schematic view of the forming structure of the rectangular steel tube of the present invention;

FIG. 2 is a schematic view of the anti-deformation tool of the present invention;

FIG. 3 is a schematic view of the structure of the clamping block of the present invention;

FIG. 4 is a schematic view of the positioning pin structure of the present invention;

fig. 5 is a schematic view of the structure of the hanging ring of the present invention.

The reference numbers in the figures illustrate: the device comprises a rectangular steel pipe 1, a tough core 2, a PVC tough column 21, a protective steel plate 22, a clamping block 3, a positioning pin 4, a hanging ring 5 and a forming roller 6.

Detailed Description

For a better understanding of the objects, structure and function of the invention, reference should be made to the drawings, FIGS. 1-5, which are included to illustrate the invention.

The existing rectangular steel pipe uses a rigid core, because the rigid core can not be bent and deformed together with the steel pipe, the rigid core only can play a role in deformation resistance at the initial stage of the bending of the steel pipe, and as the bending is further carried out, the square pipe still inevitably generates a concave deformation phenomenon, so that the surface molding state of the bent pipe is poor, therefore, the steel pipe bending deformation-resistant tool comprises a rectangular steel pipe 1 and three forming rollers 6 with preset bending curved surfaces for bending the rectangular steel pipe 1, wherein the rectangular steel pipe 1 is internally inserted with four tough cores 2 which are attached to the inner wall of the rectangular steel pipe 1 along the circumferential side walls and are bent and deformed along with the rectangular steel pipe 1, so that the rectangular steel pipe 1 is prevented from generating a concave deformation phenomenon, wherein, toughness core 2 includes PVC toughness post 21 and the protection steel sheet 22 of symmetric connection both sides about PVC toughness post 21, and protection steel sheet 22 receives the inside wall laminating of the extrusion one side of forming roll 6 with rectangular steel pipe 1.

In addition, the one end of toughness core 2 is connected with the device of extracting that conveniently takes toughness core 2 out from rectangular steel pipe 1, wherein, the device of extracting includes that one end sets up the clamp splice 3 in U type groove, clamp splice 3 passes the toughness core 2 and toughness core 2 fixed connection of pegging graft in clamp splice 3U type inslot through locating pin 4, clamp splice 3 is located the both sides wall in U type groove and sets up the locating hole that supplies locating pin 4 to pass, the device of extracting still includes and keeps away from the rings 5 that toughness core 2 one end is connected with clamp splice 3, rings 5 are screwed into the clamp splice 3 through the screw thread with one body shaping connection and are kept away from the thread groove that toughness core 2 one end was seted up.

The working principle is as follows: the toughness core 2 which is composed of the PVC toughness column 21 and two protection steel plates 22 and can bend along with the rectangular steel pipe 1 is completely inserted into the rectangular steel pipe 1, so that the inner wall of the rectangular steel pipe 1 is supported by the toughness core 2, the toughness core 2 plays a role in deformation resistance in the bending forming process of the rectangular steel pipe 1 in the whole process, the problem that the rigidity core is intelligently inserted into the rectangular steel pipe in part and cannot effectively resist the bending deformation of the steel pipe is solved, and the pulling device is composed of a clamping block 3, a positioning pin 4 and a hanging ring 5 and used for clamping and fixing the toughness core 2 before forming, and is convenient to install the toughness core 2 in the rectangular steel pipe 1, after the bending forming is finished, a hook is hung on the hanging ring 5 through an external electric motor, and the toughness core 2 is pulled out from the rectangular.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims (8)

1. The utility model provides a crooked anti deformation tool of steel pipe, includes rectangle steel pipe (1) and presets well that crooked curved surface is used for three forming roll (6) of crooked rectangle steel pipe (1), its characterized in that: four circumferential side walls are inserted into the rectangular steel pipe (1), the four circumferential side walls are attached to the inner wall of the rectangular steel pipe (1), and the rectangular steel pipe (1) is bent and deformed along with the rectangular steel pipe (2), so that the rectangular steel pipe (1) is prevented from being deformed in a sunken mode.

2. The tool for bending and deformation resistance of steel pipe according to claim 1, wherein the tough core (2) comprises a PVC tough column (21) and protective steel plates (22) symmetrically connected to the upper and lower sides of the PVC tough column (21).

3. The tool for bending and resisting deformation of the steel pipe as claimed in claim 2, wherein the protective steel plate (22) is attached to the inner side wall of the rectangular steel pipe (1) on the side pressed by the forming roll (6).

4. The tool for bending and resisting deformation of steel pipes according to claim 1, wherein one end of the ductile core (2) is connected with a pulling device for conveniently pulling the ductile core (2) out of the rectangular steel pipe (1).

5. The tool for bending and deformation resistance of the steel pipe according to claim 4, wherein the pulling-out device comprises a clamping block (3) with one end provided with a U-shaped groove, and the clamping block (3) passes through a toughness core (2) inserted in the U-shaped groove of the clamping block (3) through a positioning pin (4) to be fixedly connected with the toughness core (2).

6. The tool for bending and resisting deformation of the steel pipe as claimed in claim 5, wherein the clamping blocks (3) are provided with positioning holes for the positioning pins (4) to pass through on two side walls of the U-shaped groove.

7. The tool for bending and resisting deformation of steel pipes according to claim 5, wherein the pulling device further comprises a hanging ring (5) connected with one end of the clamping block (3) far away from the flexible core (2).

8. The tool for bending and resisting deformation of steel pipes according to claim 7, wherein the lifting ring (5) is screwed into a thread groove formed at one end of the clamping block (3) far away from the flexible core (2) through a screw thread connected with the lifting ring in an integrated mode.

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