CN219484034U

CN219484034U - Tool for bending reinforcing steel bars

Info

Publication number: CN219484034U
Application number: CN202320676460.0U
Authority: CN
Inventors: 杨建国; 周波; 刘洋
Original assignee: China Energy Construction Group Jiangsu Electric Power Construction Third Engineering Co ltd
Current assignee: China Energy Construction Group Jiangsu Electric Power Construction Third Engineering Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-08-08
Anticipated expiration: 2033-03-30

Abstract

The utility model discloses a tool for bending steel bars, which comprises a main body, wherein the main body comprises a machined part, a first component and a second component; the machined part is a columnar metal part; the first component include first mounting panel, first mounting panel bottom surface on be equipped with three post and locating hole of bending, the post of bending be first post, second post and the third post of bending respectively, the line at three post centers of bending be triangle-shaped, among the line at locating hole heart and three post centers of bending, the line length is biggest a, the post compares of bending of three, wherein the biggest numerical value of distance between two points on the post cross section of bending is b the second component include the second mounting panel, the second mounting panel on be equipped with fourth post and the reference column of bending, fourth post center to the length of reference column center line be c, and c > a, c-a > b, the reference column is used for with location swing joint.

Description

Tool for bending reinforcing steel bars

Technical Field

The utility model relates to a tool for bending steel bars.

Background

The steel bar refers to steel for reinforced concrete and prestressed reinforced concrete, and the cross section of the steel bar is round, and sometimes square with round corners. Including smooth round bars, ribbed bars, twisted bars.

The steel bar for reinforced concrete refers to a straight bar or a coiled steel bar for reinforced concrete reinforcement, the appearance of the steel bar is divided into a smooth round steel bar and a deformed steel bar, and the delivery state is two kinds of straight bars and coiled steel bars.

The plain round bar is actually a small round bar and a round disc of common low carbon steel. Deformed bars are surface ribbed bars, typically with 2 longitudinal ribs and transverse ribs uniformly distributed along the length. The shape of the transverse rib is spiral, herringbone or crescent 3. Expressed in millimeters of nominal diameter. The nominal diameter of the deformed bar is equal to the nominal diameter of the plain round bar with the same cross section. The nominal diameter of the bars is 8-50 mm, and the diameters of 8, 12, 16, 20, 25, 32, 40 mm are recommended. Steel grade: 20MnSi, 20MnV, 25MnSi, BS20MnSi. The steel reinforcement is mainly subjected to tensile stress in the concrete. The deformed steel bar has larger binding capacity with concrete due to the action of the ribs, so that the deformed steel bar can bear the action of external force better. Reinforcing bars are widely used in various building structures. Especially large, heavy, light thin-walled and high-rise building structures.

In the existing processing, the steel bar is often required to be bent to meet the existing structural requirement, a metal plate is bent under the pressure of an upper die or a lower die of a bending machine, the metal plate is firstly subjected to elastic deformation and then enters plastic deformation, the metal plate is freely bent at the beginning stage of plastic bending, the metal plate gradually abuts against the inner surface of a V-shaped groove of the lower die along with the pressing of the upper die or the lower die, meanwhile, the curvature radius and the bending moment arm are gradually reduced, the pressing is continued until the stroke is ended, the upper die and the lower die are enabled to abut against three points of the metal plate to be in full contact, and the V-shaped bending is completed at the moment, namely the bending commonly called.

However, the existing bending processing generally needs to use a bending machine, and the steel bar is bent in a stamping mode, so that the machine is complex in structure, large in size, not easy to carry or transport and high in cost.

The utility model comprises the following steps:

the utility model aims to solve the defects in the prior art and provides a tool for bending reinforcing steel bars.

A tool for bending steel bars comprises a main body, wherein the main body comprises a machined part, a first component and a second component;

the machined part is a columnar metal part;

the first component comprises a first mounting plate, three bending columns and positioning holes are arranged on the bottom surface of the first mounting plate, the three bending columns are respectively a first bending column, a second bending column and a third bending column, the connecting line of the centers of the three bending columns is triangular, the length of the connecting line is the largest a in the connecting line of the hole center of the positioning hole and the centers of the three bending columns, the three bending columns are compared, the numerical value of the maximum distance between two points on the cross section of the bending column is b,

the second component comprises a second mounting plate, a fourth bending column and a positioning column are arranged on the second mounting plate, the length of a connecting line from the center of the fourth bending column to the center of the positioning column is c, c is larger than a, c-a is larger than b, and the positioning column is used for being movably connected with the positioning column.

Working principle: in the utility model, a workpiece to be bent is placed between a first bending column, a second bending column and a third bending column, and then the first component and the second component are connected through a positioning column as a positioning hole, the second component is rotated, so that the fourth bending column applies pressure to the workpiece.

In order to prevent the damage of edges and corners to the machined part, the bending column is of a cylindrical structure.

In order to facilitate the force to rotate the mounting plates, the force arm is added to facilitate the labor saving, and handles are arranged on the side edges of the first mounting plate and the second mounting plate.

In order to reduce the damage to the hand of a person when the handle is stressed, the handle is of a cylindrical structure.

In order to conveniently fix the machined part, the cross sections of the first mounting plate and the second mounting plate are rectangular, and connecting lines of the centers of the first bending column, the second bending column and the third bending column are right-angled triangles.

In order to facilitate rotation, the positioning hole is internally provided with a positioning bearing.

The beneficial effects are that: compared with the prior art, the bending device has the advantages that the first component and the second component are matched, the component is driven to rotate by the rotating handle to realize bending of the machined part, the labor is saved, the mechanism is simple, the operation is easy, the production efficiency is improved, the processing cost is reduced, the carrying is easy, and the bending device is suitable for various working occasions.

The utility model puts the work piece to be bent between the first bending column, the second bending column and the third bending column, then connects the first component and the second component through the positioning column as the positioning hole, and makes the fourth bending column apply pressure to the work piece through rotating, meanwhile, because the work piece is fixed between the first bending column, the second bending column and the third bending column, the work piece is bent around one bending column as the center, the other two bending columns receive the reverse acting force of the work piece caused by the force applied by the fourth bending column, and the displacement of the work piece is prevented, thereby realizing bending.

Drawings

Fig. 1 is a schematic view of a tool for bending reinforcing bars;

fig. 2 is a schematic view of a first member of a tool for bending reinforcing bars;

fig. 3 is a schematic view of a second member of a tool for bending reinforcing bars;

FIG. 4 is a schematic illustration of the placement of a work piece on a first member;

in the figure, 1, second component, 2, first component, 3, first mounting panel, 4, first bending column, 5, second bending column, 7, locating hole, 8, handle, 9, fourth bending column, 10, locating column, 11, machined part.

Detailed Description

The present utility model will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present utility model, which examples are provided for the purpose of illustrating the present utility model only and are not to be construed as limiting the scope of the present utility model.

As shown in fig. 1 to 3, a second member 1, a first member 2, a first mounting plate 3, a first bending column 4, a second bending column 5, a positioning hole 7, a handle 8, a fourth bending column 9, a positioning column 10 and a workpiece 11;

a tool for bending steel bars comprises a main body, wherein the main body comprises a workpiece 11, a first component 2 and a second component 1;

the machined part 11 is a columnar metal part;

the first component 2 comprises a first mounting plate 3, three bending columns and a positioning hole 7 are arranged on the bottom surface of the first mounting plate 3, the three bending columns are respectively a first bending column 4, a second bending column 5 and a third bending column, connecting lines of the centers of the three bending columns are triangular, the length of the connecting line is the largest a in the connecting lines of the hole centers of the positioning hole 7 and the centers of the three bending columns, compared with the three bending columns, the numerical value of the distance between two points on the cross section of the bending column is the largest b,

the second component 1 comprises a second mounting plate, a fourth bending column 9 and a positioning column 10 are arranged on the second mounting plate, the length of a connecting line from the center of the fourth bending column 9 to the center of the positioning column 10 is c, c is larger than a, c-a is larger than b, and the positioning column 10 is used for being movably connected with positioning.

In this embodiment, the bending column has a cylindrical structure.

In this embodiment, the side edges of the first mounting plate 3 and the second mounting plate are provided with handles 8.

In this embodiment, the handle 8 has a cylindrical structure.

In this embodiment, the cross sections of the first mounting plate 3 and the second mounting plate are rectangular, and the connecting lines of the centers of the first bending column 4, the second bending column 5 and the third bending column are right-angled triangles.

In this embodiment, the positioning hole 7 is internally provided with a positioning bearing.

The using method comprises the following steps: the workpiece 11 to be bent is placed between the first bending column 4, the second bending column 5 and the third bending column, the first component 2 and the second component 1 are connected through the positioning column 10 for the positioning hole 7, the second component 1 is rotated, the fourth bending column 9 applies pressure to the workpiece 11, meanwhile, the workpiece 11 is bent around one bending column as a center because the workpiece 11 is fixed between the first bending column 4, the second bending column 5 and the third bending column, and the other two bending columns receive reverse acting force of the workpiece 11 caused by the force applied by the fourth bending column 9, so that the workpiece 11 is prevented from being displaced, and bending is realized.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A tool for bending steel bars comprises a main body, and is characterized in that the main body comprises a machined part, a first component and a second component;

the machined part is a columnar metal part;

2. The tool for bending steel bars according to claim 1, wherein the bending column has a cylindrical structure.

3. The tool for bending steel bars according to claim 1, wherein handles are provided on both sides of the first mounting plate and the second mounting plate.

4. A tool for bending reinforcing steel bars according to claim 3, wherein the handle has a cylindrical structure.

5. The tool for bending steel bars according to claim 1, wherein the cross sections of the first mounting plate and the second mounting plate are rectangular, and the connecting lines of the centers of the first bending column, the second bending column and the third bending column are right-angled triangles.

6. The tool for bending steel bars according to claim 1, wherein the positioning hole is internally provided with a positioning bearing.