A metal bar bending device

By designing the fixed unit and rotating unit of the metal bar bending device, the fatigue and precision control problems caused by the hand-held method in the existing technology are solved, realizing efficient and precise bar bending operation and improving processing quality.

CN224333173UActive Publication Date: 2026-06-09JIANGSU BINFEI METALLURGICAL EQUIP MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU BINFEI METALLURGICAL EQUIP MFG CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing metal bars are prone to fatigue when moved by hand during bending, and it is difficult to accurately control the angle and position, resulting in a decline in bending quality.

Method used

A metal bar bending device was designed, including a worktable, a support, an upper die, a lower die, a fixing unit, and a rotating unit. By using an electric lifting seat, a clamping plate, and a rotating unit in combination, the device can fix and rotate the bar, and precisely control the bending angle and position.

Benefits of technology

The combination of the electric lifting seat and the rotating unit enables efficient fixing and rotation of the bar stock, improving bending quality, reducing the labor intensity of operators, and ensuring precise control of angle and position.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a metal rod bending device, comprising: a worktable, a support fixedly connected to the upper side of the worktable, an upper die mounted on one side of the support, and a lower die disposed below the upper die. This utility model uses an electric lifting seat to move the lower die up and down and place the rod on the surface of the lower die. Then, a fixing unit clamps and fixes the rod, and moves the rod to adjust the bending point. A rotating unit drives a turntable to rotate, causing the turntable to rotate the clamped and fixed rod, adjusting the bending direction of the rod. This allows for precise control of the bending angle and position of the rod, saving time and effort, and improving bending quality.
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Description

Technical Field

[0001] This utility model relates to the technical field of metal processing, and in particular to a metal rod bending device. Background Technology

[0002] Metal bars are solid, long strip-shaped metal materials produced by processes such as rolling, forging, extrusion, or drawing. They typically have regular cross-sectional shapes such as circles, squares, and hexagons. The process of plastically deforming metal bars by applying external force to obtain specific angles or curved shapes is called bending.

[0003] In the current metal bar bending process, the bar is moved and the bending point is adjusted by hand inside the bending machine. However, some bars are too large and their weight increases significantly. Moving the bar by hand can easily cause fatigue and makes it difficult to accurately control the angle and position, thus reducing the bending quality. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned metal rod bending device, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a metal bar bending device to solve the problem that "in the existing metal bar bending process, the bar is moved and the bending point is adjusted by hand inside the bending machine. However, some bars are too large and the weight will increase significantly. Moving the bar by hand is easy to cause fatigue and it is difficult to accurately control the angle and position, which reduces the bending quality".

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0008] A metal rod bending device, comprising:

[0009] A workbench, wherein a support is fixedly connected to the upper side of the workbench, and an upper mold is installed on one side of the support, and a lower mold is provided on the lower side of the upper mold;

[0010] A fixing unit is provided on the upper surface of the workbench and located on one side of the lower mold. The fixing unit includes a turntable, and three sets of clamping plates are provided on one side of the turntable for clamping and fixing the bar.

[0011] A rotating unit is disposed on the lower side of the turntable and is used to drive the turntable to rotate the bar.

[0012] In a preferred embodiment of the metal rod bending device of this utility model, an electric lifting seat is installed inside the workbench, and the upper output end of the electric lifting seat is fixedly connected to the lower die.

[0013] In a preferred embodiment of the metal rod bending device of this utility model, the surface of the turntable is rotatably connected to a fixed frame, and the lower surface of the fixed frame is fixedly connected to a support block. The support block is slidably connected to the worktable. Three sets of sliding grooves are evenly opened inside the turntable, and sliding plates are slidably connected to the inner wall surface of each sliding groove. A clamping plate is fixedly connected to one side of each of the three sets of sliding plates. A driving component is provided on the other side of the turntable.

[0014] In a preferred embodiment of the metal rod bending device of this utility model, the driving component includes a rotating rod rotatably connected to a turntable, and a bevel gear 1 is fixedly connected to the surface of the rotating rod. Three sets of bevel gears 2 are meshed with the surface of the bevel gear 1, and threaded rods are fixedly connected to the surface of each bevel gear 2. Support plates are rotatably connected to the surfaces of the three sets of threaded rods, and the support plates are fixedly connected to the turntable. The surfaces of the three sets of threaded rods are threadedly connected to a sliding plate.

[0015] As a preferred embodiment of the metal rod bending device of this utility model, the surfaces of the three sets of clamping plates that are close to each other are all grooved, and multiple sets of friction rods are fixedly connected to the surfaces of the three sets of clamping plates that are close to each other.

[0016] In a preferred embodiment of the metal rod bending device of this utility model, the inner wall surfaces of the three sets of sliding grooves are all fixedly connected with limit rods, and the surfaces of the limit rods are all slidably connected to the sliding plate.

[0017] As a preferred embodiment of the metal rod bending device of this utility model, the upper surface of the workbench is provided with a scale groove, and the inner wall surface of the scale groove is slidably connected to the support block. Both sides of the support block are fixedly connected with side plates. Two sets of cylinders are installed on the upper surface of the workbench, and the output ends of the cylinders are fixedly connected to the side plates.

[0018] In a preferred embodiment of the metal rod bending device of this utility model, the rotating unit includes a motor fixedly connected to the support block, and a rotating rod is fixedly connected to the output end of the motor. The rotating rod is rotatably connected to the support block. A rotating gear is fixedly connected to the other end of the rotating rod, and an external gear ring is meshed on the upper side of the rotating gear. The external gear ring is fixedly connected to the turntable.

[0019] The beneficial effects of this utility model are:

[0020] The lower die is moved up and down by an electric lifting seat and the bar is placed on the surface of the lower die. Then, the clamping plate is clamped and fixed by the fixing unit and moves the bar to adjust the bending point. Then, the turntable is rotated by the rotating unit, which rotates the bar that is clamped and fixed, and adjusts the bending direction of the bar. This allows for precise control of the bending angle and position of the bar, saving time and effort and improving the bending quality. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a three-dimensional structural diagram of a metal rod bending device proposed in this utility model.

[0023] Figure 2 for Figure 1 A side view of the three-dimensional structure;

[0024] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure cross-section;

[0025] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0026] In the diagram: 100, workbench; 101, support; 102, upper mold; 103, lower mold; 104, electric lifting seat; 200, fixing unit; 201, turntable; 202, fixing frame; 203, support block; 204, slide groove; 205, sliding plate; 206, clamping plate; 207, friction rod; 208, drive assembly; 2081, rotating rod; 2082, bevel gear one; 2083, bevel gear two; 2084, threaded rod; 209, limit rod; 210, scale groove; 211, side plate; 212, cylinder; 300, rotating unit; 301, motor; 302, rotating rod; 303, rotating gear; 304, external gear ring. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] Example 1

[0032] Reference Figure 1-3 This is the first embodiment of the present invention, which provides a metal rod bending device, comprising:

[0033] The workbench 100 has a support 101 fixedly connected to its upper side, and an upper mold 102 is installed on one side of the support 101. A lower mold 103 is provided on the lower side of the upper mold 102. The upper mold 102 can bend the bar on the surface of the lower mold 103 by moving downward.

[0034] The fixing unit 200 is disposed on the upper surface of the workbench 100 and located on one side of the lower mold 103. The fixing unit 200 includes a turntable 201, and three sets of clamping plates 206 are provided on one side of the turntable 201 for clamping and fixing the bar.

[0035] A rotating unit 300 is disposed on the lower side of the turntable 201 and is used to drive the turntable 201 to rotate the bar.

[0036] Furthermore, an electric lifting seat 104 is installed inside the workbench 100, and the upper output shaft of the electric lifting seat 104 is fixedly connected to the lower mold 103, which pushes the lower mold 103 to move up and down to support bars of different thicknesses.

[0037] In use, the lower die 103 is moved up and down by the electric lifting seat 104 and the bar is placed on the surface of the lower die 103. Then, the clamping plate 206 clamps and fixes the bar through the action of the fixing unit 200, and moves the bar to adjust the bending point. Then, the turntable 201 is rotated by the rotating unit 300, which causes the turntable 201 to rotate the clamped and fixed bar, and adjusts the bending direction of the bar. This allows for precise control of the bending angle and position of the bar, saving time and effort and improving the bending quality.

[0038] Example 2

[0039] Reference Figure 2-4 This is the second embodiment of the present invention. Unlike the previous embodiment, the surface of the turntable 201 is rotatably connected to a fixed frame 202, and the lower surface of the fixed frame 202 is fixedly connected to a support block 203. The support block 203 is slidably connected to the worktable 100. Three sets of sliding grooves 204 are evenly opened inside the turntable 201, and sliding plates 205 are slidably connected to the inner wall surface of each sliding groove 204. A clamping plate 206 is fixedly connected to one side of each of the three sets of sliding plates 205. A driving assembly 208 is provided on the other side of the turntable 201, which can clamp and fix the bar to one side of the turntable 201 through the clamping plate 206.

[0040] Furthermore, the drive assembly 208 includes a rotating rod 2081 rotatably connected to the turntable 201, and a bevel gear 2082 is fixedly connected to the surface of the rotating rod 2081. Three sets of bevel gears 2083 are meshed with the surface of the bevel gears 2082, and threaded rods 2084 are fixedly connected to the surface of each of the bevel gears 2083. Support plates are rotatably connected to the surfaces of the three sets of threaded rods 2084, and the support plates are fixedly connected to the turntable 201. The surfaces of the three sets of threaded rods 2084 are threadedly connected to the sliding plate 205. Twisting the rotating rod 2081 can drive the bevel gears 2083 to rotate synchronously, thereby causing the sliding plate 205 to drive the clamping plate 206 to slide.

[0041] Furthermore, the surfaces of the three sets of clamping plates 206 that are close to each other are all grooved, and multiple sets of friction rods 207 are fixedly connected to the surfaces of the three sets of clamping plates 206 that are close to each other, so as to facilitate the clamping plates 206 to clamp the rods and increase the clamping friction.

[0042] Furthermore, the inner wall surfaces of the three sets of slide grooves 204 are all fixedly connected with limit rods 209, and the surfaces of the limit rods 209 are all slidably connected to the sliding plate 205 to limit the sliding plate 205.

[0043] Furthermore, a scale groove 210 is provided on the upper surface of the workbench 100, and the inner wall surface of the scale groove 210 is slidably connected to the support block 203. Side plates 211 are fixedly connected to both sides of the support block 203. Two sets of cylinders 212 are installed on the upper surface of the workbench 100, and the output shafts of the cylinders 212 are fixedly connected to the side plates 211. The support block 203 slides on the inner wall of the scale groove 210 through the cylinders 212, which can drive the clamped and fixed bar to move.

[0044] The rotating unit 300 includes a motor 301 fixedly connected to the support block 203, and a rotating rod 302 fixedly connected to the output shaft of the motor 301. The rotating rod 302 is rotatably connected to the support block 203. A rotating gear 303 is fixedly connected to the other end of the rotating rod 302, and an external gear ring 304 is meshed on the upper side of the rotating gear 303. The external gear ring 304 is fixedly connected to the turntable 201 and is used to drive the motor 301 to rotate inside the fixed frame 202, thereby driving the bar to rotate.

[0045] In use, the lower mold 103 is moved up and down by the electric lifting seat 104, and the bar is placed on the surface of the lower mold 103. Then, one end of the bar is brought into contact with the turntable 201. Next, the rotating rod 2081 is turned to drive the bevel gear 2082 to rotate. The bevel gear 2083, which is meshed with the bevel gear 2082, drives the threaded rod 2084 to rotate, causing the sliding plate 205, which is threadedly connected to the threaded rod 2084, to slide on the surface of the limiting rod 209. This causes the clamping plate 206, which is fixedly connected to the sliding plate 205, to move in opposite directions, clamping and fixing the bar on the turntable 201. On one side, the cylinder 212 is started by power to move the side plate 211. The support block 203, which is fixedly connected to the side plate 211, slides inside the scale groove 210, so that the turntable 201 moves the bar, which can flexibly adjust the bending position of the bar. Then, the motor 301 is started by power to drive the rotating rod 302 to rotate inside the support block 203. The rotating gear 303, which is fixedly connected to the rotating rod 302, drives the meshing external gear ring 304 to rotate, so that the turntable 201, which is fixedly connected to the external gear ring 304, drives the bar that is clamped and fixed to rotate, thereby adjusting the bending direction of the bar.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A metal rod bending device, characterized in that: include: A workbench (100) is provided with a support (101) fixedly connected to its upper side, and an upper mold (102) is installed on one side of the support (101), and a lower mold (103) is provided on the lower side of the upper mold (102). A fixing unit (200) is provided on the upper surface of the workbench (100) and located on one side of the lower mold (103). The fixing unit (200) includes a turntable (201) and three sets of clamping plates (206) are provided on one side of the turntable (201) for clamping and fixing the bar. A rotating unit (300) is disposed on the lower side of the turntable (201) and is used to drive the turntable (201) to rotate the bar.

2. The metal rod bending device according to claim 1, characterized in that: The workbench (100) is equipped with an electric lifting seat (104), and the upper output end of the electric lifting seat (104) is fixedly connected to the lower mold (103).

3. The metal rod bending device according to claim 2, characterized in that: The surface of the turntable (201) is rotatably connected to a fixed frame (202), and a support block (203) is fixedly connected to the lower surface of the fixed frame (202). The support block (203) is slidably connected to the worktable (100). Three sets of sliding grooves (204) are evenly opened inside the turntable (201), and sliding plates (205) are slidably connected to the inner wall surface of each sliding groove (204). A clamping plate (206) is fixedly connected to one side of each of the three sets of sliding plates (205). A drive assembly (208) is provided on the other side of the turntable (201).

4. The metal rod bending device according to claim 3, characterized in that: The drive assembly (208) includes a rotating rod (2081) rotatably connected to the turntable (201), and a bevel gear (2082) is fixedly connected to the surface of the rotating rod (2081). Three sets of bevel gears (2083) are meshed with the surface of the bevel gears (2082), and threaded rods (2084) are fixedly connected to the surface of each of the bevel gears (2083). Support plates are rotatably connected to the surfaces of the three sets of threaded rods (2084), and the support plates are fixedly connected to the turntable (201). The surfaces of the three sets of threaded rods (2084) are threadedly connected to the sliding plate (205).

5. A metal rod bending device according to claim 4, characterized in that: The surfaces of the three sets of clamps (206) that are close to each other are all grooved, and multiple sets of friction rods (207) are fixedly connected to the surfaces of the three sets of clamps (206) that are close to each other.

6. The metal rod bending device according to claim 5, characterized in that: The inner wall surfaces of the three sets of slides (204) are all fixedly connected to limit rods (209), and the surfaces of the limit rods (209) are all slidably connected to the sliding plate (205).

7. A metal rod bending device according to claim 6, characterized in that: The upper surface of the workbench (100) is provided with a scale groove (210), and the inner wall surface of the scale groove (210) is slidably connected to the support block (203). Both sides of the support block (203) are fixedly connected with side plates (211). Two sets of cylinders (212) are installed on the upper surface of the workbench (100), and the output ends of the cylinders (212) are fixedly connected to the side plates (211).

8. A metal rod bending device according to claim 1, characterized in that: The rotating unit (300) includes a motor (301) fixedly connected to the support block (203), and a rotating rod (302) is fixedly connected to the output end of the motor (301). The rotating rod (302) is rotatably connected to the support block (203). A rotating gear (303) is fixedly connected to the other end of the rotating rod (302), and an external gear ring (304) is meshed on the upper side of the rotating gear (303). The external gear ring (304) is fixedly connected to the turntable (201).