Reinforcing bar processing and bending device

By using a servo motor to drive a worm gear transmission and a convenient fixing mechanism, the problems of cumbersome operation and limited angle of the rebar bending device are solved, and efficient and precise rebar bending is achieved.

CN224525857UActive Publication Date: 2026-07-21CHINA CONSTR ZHENGDA TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR ZHENGDA TECH CO LTD
Filing Date
2025-08-26
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing rebar bending devices are cumbersome to operate and have limited bending angles, affecting bending quality and efficiency.

Method used

The bending mechanism uses a servo motor to drive the worm gear transmission, combined with a convenient fixing mechanism. It utilizes limit grooves, limit sliders, and hand-tightened bolts to achieve quick fixing and disassembly, and precisely control the bending angle.

Benefits of technology

It improves the efficiency and precision of steel bar bending, ensures bending quality, simplifies the operation process, and enhances bending efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of steel bar processing bending device, it is related to steel bar processing technical field, including base, the top of base is provided with bending mechanism, bending mechanism includes mounting seat, the front surface fixedly connected with fixed shaft of mounting seat, the front and rear inner wall of mounting seat is rotatably connected with driving rod by bearing, one end of driving rod penetrates and extends to the back of mounting seat and is fixedly sleeved with worm wheel, the outside fixed sleeve of driving rod has installation ring, in bending mechanism, servo motor, worm gear drive, can accurately control bending angle, satisfy different large-angle bending demand, convenient fixed mechanism utilizes limit sliding slot, limit sliding block and hand screw bolt, can be quickly fixed and disassembled to steel bar, it is easy to operate, improve the efficiency and accuracy of steel bar bending, guarantee bending quality, solve the problem that traditional steel bar bending device push rod motor drive makes bending angle limited, steel bar fixing and disassembling operation is complicated, to improve the effect of bending efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of steel bar processing technology, and in particular to a steel bar processing bending device. Background Technology

[0002] High-strength steel bars refer to steel used in reinforced concrete and prestressed reinforced concrete. Their cross-section is circular, and sometimes square with rounded corners. They include plain round bars, ribbed bars, and twisted bars. High-strength steel bars need to be bent using bending equipment during use. However, currently, the contact area between the bending part and the steel bar is very small. When bending the steel bar, the stress is concentrated at the contact point, making the straight section of the steel bar easy to bend, thus affecting the bending quality.

[0003] For example, a steel bar processing and bending device disclosed in Chinese patent literature (publication number: CN222403185U) uses support base one and support base two. When the hollow rod rotates downward, the fixed plate rotates upward, which drives support base one to deflect upward through the connecting plate and connecting rod. At this time, the support shaft plays a supporting and blocking role, blocking the area of ​​the steel bar to be bent. Support base one bends the steel bar, and at this time, the non-bending area is supported by support base two and support base one, so that the non-bending area of ​​the steel bar can remain straight and avoid bending. This solves the problem that the contact area between the part of the steel bar and the steel bar is very small, and the stress is concentrated at the contact point when bending the steel bar, making the straight section of the steel bar easy to bend.

[0004] However, using a push rod motor as the drive source limits the bending angle of the steel bars due to its vertical pushing, making it impossible to bend at large angles. Furthermore, each time the steel bars are fixed and disassembled, the pressing blocks need to be repeatedly disassembled and reassembled through multiple screws, which is cumbersome and seriously reduces the efficiency of steel bar bending. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the cumbersome operation and limited bending angle when bending steel bars, which leads to low practicality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A steel bar processing and bending device includes a base, and a bending mechanism is provided above the base;

[0008] The bending mechanism includes a mounting base, a fixed shaft is fixedly connected to the front of the mounting base, a drive rod is rotatably connected to the front and rear inner walls of the mounting base through bearings, one end of the drive rod passes through and extends to the back of the mounting base and is fixedly sleeved with a worm gear, a mounting ring is fixedly sleeved on the outside of the drive rod, and an indicator needle is fixedly connected to the outside of the mounting ring.

[0009] A convenient fixing mechanism is provided on the top of the base.

[0010] Preferably, the rear inner wall of the mounting base is provided with angle indicator grooves arranged in an arc-shaped array, and a rotating block is fixedly connected to the outside of the mounting ring.

[0011] Preferably, a servo motor is fixedly mounted on the back of the mounting base, and a worm gear is fixedly mounted on the output shaft of the servo motor via a coupling, with the outer surface of the worm gear meshing with the tooth surface of the worm wheel.

[0012] Preferably, the convenient fixing mechanism includes a first placement block, and a series of fixing rods arranged in a linear array are fixedly connected to the back of the first placement block, with one end of each of the fixing rods fixedly connected to the lower end of the rotating block.

[0013] Preferably, the upper end of the first placement block is provided with symmetrically distributed limiting grooves, the inner wall of the limiting grooves is slidably connected to limiting sliders, the upper ends of the two limiting sliders are fixedly connected to fixing frames, and the inner walls on both sides of the fixing frames are provided with symmetrically distributed guide grooves.

[0014] Preferably, the inner wall of the guide groove is slidably connected to a guide slider, and an arc-shaped pressing block is fixedly connected to one end of each of the two guide sliders. The upper end of the fixing frame is provided with a threaded hole, and a hand-tightening bolt is threadedly connected to the inner wall of the threaded hole.

[0015] Preferably, one end of the hand-tightening bolt is rotatably connected to the upper end of the arc-shaped pressing block via a bearing, a support block is fixedly connected to the upper end of the base, and a second placement block is fixedly connected to the upper end of the support block.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the bending mechanism, through the servo motor and worm gear transmission, can precisely control the bending angle to meet the needs of different large-angle bending. The convenient fixing mechanism, using the limiting slide groove, limiting slider, and hand-tightening bolt, can quickly fix and disassemble the steel bar, making operation simple and improving the efficiency and accuracy of steel bar bending, ensuring bending quality. It solves the problems of limited bending angle and cumbersome steel bar fixing and disassembly operations caused by the push rod motor drive of traditional steel bar bending devices, thereby improving bending efficiency. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of a steel bar processing and bending device provided by this utility model;

[0019] Figure 2 A three-dimensional view of the base structure of a steel bar processing and bending device provided by this utility model;

[0020] Figure 3 A perspective view of the mounting base structure of a steel bar processing and bending device provided by this utility model;

[0021] Figure 4 A three-dimensional view of the first placement block structure of a steel bar processing and bending device provided by this utility model;

[0022] Figure 5 An exploded view of the fixing frame structure of a steel bar processing and bending device provided by this utility model.

[0023] Legend: 1. Base; 2. Mounting seat; 21. Drive rod; 22. Worm gear; 23. Mounting ring; 24. Indicator needle; 25. Angle indicator groove; 26. Rotating block; 27. Servo motor; 28. Worm gear; 29. ​​Fixed shaft; 3. First placement block; 31. Fixed rod; 32. Limiting groove; 33. Limiting slider; 34. Fixing frame; 35. Guide groove; 36. Guide slider; 37. Arc-shaped pressing block; 38. Threaded hole; 39. Hand-tightening bolt; 310. Support block; 311. Second placement block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figures 1-5 As shown, this utility model provides a technical solution: a steel bar processing and bending device, including a base 1. The base 1 provides a stable foundation support for the entire steel bar processing and bending device, ensuring that the device remains stable during operation and providing a guarantee for accurate bending.

[0030] The bending mechanism above it uses the mounting base 2 as the core mounting carrier. The fixed shaft 29, which is fixedly connected to the front of the mounting base 2, is the support point when bending the steel bar. It works with the first placement block 3 to realize the bending action of the steel bar.

[0031] The drive rod 21, which is rotatably connected to the front and rear inner walls of the mounting base 2 via bearings, can rotate smoothly, providing a basis for power transmission for bending actions.

[0032] One end of the drive rod 21 extends through to the back of the mounting base 2 and is fixedly fitted with the worm gear 22, which meshes with the tooth surface of the worm 28 fixedly mounted on the back of the mounting base 2 via a coupling.

[0033] When the servo motor 27 is working, it drives the worm gear 28 to rotate, which in turn drives the drive rod 21 to rotate through the meshing worm wheel 22, providing stable and precisely controllable power for the bending action and ensuring the smooth progress of the bending process.

[0034] The mounting ring 23, which is fixedly sleeved on the outside of the drive rod 21, has an indicator needle 24 fixedly connected to it. When the drive rod 21 rotates, the indicator needle rotates along with it.

[0035] The angle indicator grooves 25 arranged in an arc-shaped array on the inner wall of the mounting base 2, in conjunction with the indicator needle 24, allow the operator to observe the bending angle in real time, thereby accurately controlling the degree of bending and meeting different bending angle requirements. This solves the problem of limited bending angle in traditional push rod motor driven bending, and ensures bending quality.

[0036] The rotating block 26, which is fixedly connected to the outside of the mounting ring 23, serves to connect the drive rod 21 and the first placement block 3, converting the rotation of the drive rod 21 into the rotation of the first placement block 3, thereby achieving the bending of the reinforcing bar.

[0037] The convenient fixing mechanism above the base 1 is fixedly connected to the lower end of the rotating block 26 by a linear array of fixing rods 31 fixedly connected to the back of the first placement block 3, thereby realizing the linkage between the first placement block 3 and the drive rod 21, so that the first placement block 3 can rotate with the drive rod 21 to complete the bending action.

[0038] The symmetrically distributed limiting grooves 32 on the upper end of the first placement block 3 cooperate with the limiting slider 33 to provide a track for the movement of the fixing frame 34.

[0039] The fixed frame 34, which is fixedly connected to the upper end of the limiting slider 33, can move flexibly within the limiting groove 32 according to the length and bending position of the reinforcing bar and be adjusted to a suitable position. The guide grooves 35, which are symmetrically distributed on the inner walls of both sides of the fixed frame 34, cooperate with the guide slider 36 to provide guidance for the movement of the arc-shaped pressing block 37.

[0040] The guide slider 36 is fixedly connected to the arc-shaped pressing block 37 at one end. Its arc-shaped design is adapted to the shape of the steel bar, which can better fit the steel bar and improve the stability of the fixation.

[0041] The threaded hole 38 at the upper end of the fixing frame 34 is connected to the inner wall of the hand-tightening bolt 39, one end of which is rotatably connected to the upper end of the arc-shaped pressing block 37 through a bearing. When the operator rotates the hand-tightening bolt 39, the arc-shaped pressing block 37 can be moved along the guide groove 35 to fix or loosen the reinforcing bar.

[0042] Compared to the traditional method of repeatedly disassembling and assembling multiple screws, this fixing method is simpler and faster to operate, saves a lot of time, and improves the efficiency of steel bar bending.

[0043] The support block 310 fixedly connected to the upper end of the base 1 provides support for the second placement block 311. The second placement block 311 is used to place the steel bar to be bent, providing an initial placement platform for the bending operation of the steel bar, so that the steel bar maintains a stable position before bending.

[0044] It should be noted that the electrical components mentioned above are all existing mature technologies. Appropriate models and power can be selected based on the technical knowledge of those skilled in the art, and they are controlled by PLC controllers, which are existing mature technologies. Therefore, they will not be described in detail again.

[0045] The working process of this utility model:

[0046] Step 1: In use, first place the rebar to be bent inside the second placement block 311. Then, according to the part of the rebar to be bent, move the rebar so that one end of the rebar enters the first placement block 3 and the bending point is accurately located below the fixed shaft 29. This determines the position for subsequent bending operations and ensures that the bending position meets the processing requirements. Then, through the cooperation of the limiting slide groove 32 and the limiting slider 33, the fixed frame 34 is moved to the end of the rebar, so that the fixed frame 34 corresponds to the end of the rebar. After that, rotate the hand-tightening bolt 39. During the rotation of the hand-tightening bolt 39, since one end of the hand-tightening bolt 39 is rotatably connected to the upper end of the arc-shaped pressing block 37 through the bearing, and with the cooperation of the guide slide groove 35 and the guide slider 36, the hand-tightening bolt 39 can stably drive the arc-shaped pressing block 37 to descend, thereby fixing and limiting the end of the rebar, preventing the rebar from shifting during the bending process, and ensuring the accuracy of the bending.

[0047] Step two, finally, start the servo motor 27. The output shaft of the servo motor 27 drives the worm 28 to rotate through the coupling. Because the outer surface of the worm 28 meshes with the tooth surface of the worm wheel 22, the rotation of the worm 28 will drive the worm wheel 22 to rotate, which in turn causes the drive rod 21, which is fixedly sleeved with the worm wheel 22, to rotate. When the drive rod 21 rotates, it drives the first placement block 3 to rotate through the rotating block 26. During the rotation of the first placement block 3, it cooperates with the fixed shaft 29 to perform the bending operation on the steel bar. At the same time, the rotation of the drive rod 21 will drive the indicator needle 24 to rotate through the mounting ring 23. During the rotation of the indicator needle 24, it cooperates with the angle indicator grooves 25 arranged in an arc-shaped array on the inner wall of the mounting seat 2, which makes it easy for the operator to observe the bending angle in real time, thereby accurately controlling the bending degree, meeting different bending angle requirements, and ensuring bending quality.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steel bar processing and bending device, comprising a base (1), characterized in that: A bending mechanism is provided above the base (1); The bending mechanism includes a mounting base (2), a fixed shaft (29) is fixedly connected to the front of the mounting base (2), a drive rod (21) is rotatably connected to the front and rear inner walls of the mounting base (2) through bearings, one end of the drive rod (21) passes through and extends to the back of the mounting base (2) and is fixedly sleeved with a worm gear (22), a mounting ring (23) is fixedly sleeved on the outside of the drive rod (21), and an indicator needle (24) is fixedly connected to the outside of the mounting ring (23). A convenient fixing mechanism is provided on the top of the base (1).

2. The steel bar processing and bending device according to claim 1, characterized in that: The rear inner wall of the mounting base (2) is provided with angle indicator grooves (25) arranged in an arc-shaped array, and the outside of the mounting ring (23) is fixedly connected with a rotating block (26).

3. The steel bar processing and bending device according to claim 1, characterized in that: A servo motor (27) is fixedly mounted on the back of the mounting base (2). The output shaft of the servo motor (27) is fixedly mounted with a worm gear (28) through a coupling. The outer surface of the worm gear (28) meshes with the tooth surface of the worm wheel (22).

4. A steel bar processing and bending device according to claim 2, characterized in that: The convenient fixing mechanism includes a first placement block (3), and a series of fixing rods (31) arranged in a linear array are fixedly connected to the back of the first placement block (3). One end of each of the fixing rods (31) is fixedly connected to the lower end of the rotating block (26).

5. A steel bar processing and bending device according to claim 4, characterized in that: The upper end of the first placement block (3) is provided with symmetrically distributed limiting grooves (32), and the inner wall of the limiting grooves (32) is slidably connected to limiting sliders (33). The upper ends of the two limiting sliders (33) are fixedly connected to a fixing frame (34), and the inner walls of the two sides of the fixing frame (34) are provided with symmetrically distributed guide grooves (35).

6. A steel bar processing and bending device according to claim 5, characterized in that: The inner wall of the guide groove (35) is slidably connected to a guide slider (36), and an arc-shaped pressing block (37) is fixedly connected to one end of each of the two guide sliders (36). The upper end of the fixing frame (34) is provided with a threaded hole (38), and a hand-tightening bolt (39) is threadedly connected to the inner wall of the threaded hole (38).

7. A steel bar processing and bending device according to claim 6, characterized in that: One end of the hand-tightening bolt (39) is rotatably connected to the upper end of the arc-shaped pressing block (37) via a bearing. The upper end of the base (1) is fixedly connected to a support block (310), and the upper end of the support block (310) is fixedly connected to a second placement block (311).