Positioning mechanism of bending machine

The automated bending machine positioning mechanism uses a motor and a bidirectional screw to drive the positioning plate to achieve precise alignment of metal bars, solving the problem of positional deviation when bending multiple metal bars simultaneously, and improving production efficiency and product quality.

CN223932441UActive Publication Date: 2026-02-24MAANSHAN FANGWEI PRECISION BLADE MOULD CO LTD
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Patent Information

Application Number
CN202520380774.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-02-24
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

During the simultaneous bending of multiple metal rods, the lack of a precise positioning device leads to positional deviations, and existing manual calibration methods are insufficient to achieve precise positioning.

Method used

An automated bending machine positioning mechanism is adopted, including a positioning mechanism and a synchronous drive device. The moving block and positioning plate are driven by a motor and a bidirectional screw to achieve precise correction and positioning of the metal rod.

Benefits of technology

It significantly improves the accuracy and consistency of the bending position of metal bars, increases production efficiency and product quality, and reduces the defect rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a positioning mechanism of a bending machine, and belongs to the technical field of metal bar bending. The positioning mechanism of the bending machine comprises a base, the lower surface of the base is fixedly connected with supporting legs, the upper surface of the base is provided with two bending frames moving oppositely or oppositely, the bending frames are provided with frame grooves used for clamping metal rods, and the positioning mechanism of the bending machine further comprises two symmetrically-arranged positioning mechanisms. The two positioning mechanisms are located at the rear ends of the two bending frames respectively, move through a synchronous driving device on the side face of the base, abut against the metal rod and limit the metal rod. The problem that the bending position of an existing bending machine is prone to deviation is solved, traditional manual operation is replaced with an automatic positioning system, positioning accuracy can be remarkably improved, and the problem of position deviation when a plurality of metal bars are synchronously bent can be effectively solved.
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Description

Technical Field

[0001] This utility model relates to the field of metal rod bending technology, specifically a positioning mechanism for a bending machine. Background Technology

[0002] In actual bending operations of metal bars, in order to improve production efficiency, multiple metal bars are usually bent at the same time. However, due to the lack of precise positioning devices, bending position deviations often occur when multiple metal bars are bent synchronously.

[0003] To address this issue, the industry currently generally adopts manual calibration to meet this challenge. That is, after multiple metal bars are placed on the bending frame, the operator needs to manually align and position the two ends of the metal bars. Although this method can avoid large positional deviations, it still has obvious shortcomings in terms of precision control and it is difficult to achieve a precise positioning effect.

[0004] Therefore, we propose an automated positioning mechanism for bending machines, which can effectively solve the above problems by replacing manual positioning with automation. Utility Model Content

[0005] The purpose of this invention is to provide a positioning mechanism for a bending machine. By replacing traditional manual operation with an automated positioning system, it can not only significantly improve positioning accuracy, but also effectively solve the problem of position deviation when multiple metal bars are bent simultaneously.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bending machine positioning mechanism, including a base, with legs fixedly connected to the lower surface of the base, and two bending frames that move towards or away from each other on the upper surface of the base. The bending frames are provided with slots for mounting metal rods. The mechanism is characterized by further including two symmetrically arranged positioning mechanisms, each located at the rear end of the corresponding bending frame. The positioning mechanisms are moved by a synchronous drive device on the side of the base, and the positioning mechanisms can abut against the metal rods.

[0007] Preferably, a first drive groove is provided in the middle of the upper surface of the base. The first drive groove is provided with a first dual-axis motor, a first bidirectional screw and a first moving block. The two output ends of the first dual-axis motor are connected to the first bidirectional screw. The first bidirectional screw is divided into two sections and is located on both sides of the first dual-axis motor. The two sections of the first bidirectional screw have opposite thread directions.

[0008] Preferably, the surface of the first bidirectional screw is threadedly connected to the first moving block, and the upper surface of the first moving block is fixedly connected to the lower end of the bending frame.

[0009] Preferably, guide grooves are provided on both sides of the upper surface of the base, guide rods are installed inside the guide grooves, guide blocks are slidably connected to the surface of the guide rods, and the upper end of the guide blocks is fixedly connected to the lower end of the bending frame.

[0010] Preferably, the base has a second drive slot on both sides, and the synchronous drive device is located inside the second drive slot. The synchronous drive device is a second dual-axis motor, a second bidirectional screw, and a second moving block.

[0011] Preferably, the output end of the second dual-axis motor is connected to the second bidirectional screw drive. The second bidirectional screw is divided into two sections, located on both sides of the second dual-axis motor, with opposite surface threads. A second moving block is threaded onto the surface of the second bidirectional screw.

[0012] Preferably, the side surface of the second movable block is fixedly connected to the inner surface of the lower end of the positioning mechanism, and the inner surface of the upper end of the positioning mechanism is fixedly connected with a disassembly and assembly component.

[0013] Preferably, the assembly / disassembly part has a slot inside, and a positioning plate is engaged inside the slot.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] (1) The positioning mechanism of the bending machine of this utility model can accurately correct and position the metal rod through the design of the positioning mechanism and the positioning plate, ensuring that the two ends of the metal rod are closely aligned, thereby significantly improving the accuracy of the bending position and avoiding bending deviation. This high-precision positioning can effectively improve the quality of the product and reduce the defect rate.

[0016] (2) The positioning mechanism of the bending machine of this utility model, through the design of the synchronous drive device and the second bidirectional screw, can quickly and easily perform positioning operations on the metal rod, reduce the time and difficulty of manual adjustment, and improve production efficiency. This automated operation can significantly shorten the production cycle and improve production efficiency.

[0017] (3) A bending machine positioning mechanism of the present invention, wherein the positioning plate is connected to the positioning mechanism through a disassembly and assembly part, which can be quickly disassembled and assembled, making it convenient to load and unload the metal rod and improving the ease of operation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the entire utility model;

[0019] Figure 2 This is a schematic diagram of the entire utility model from another angle;

[0020] Figure 3 This is a schematic diagram of the threaded bearing rod of this utility model;

[0021] Figure 4This is a schematic diagram of the frame structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the reinforcement mechanism structure of this utility model.

[0023] In the diagram: 1. Base; 11. Support leg; 12. First drive slot; 121. First dual-axis motor; 122. First bidirectional screw; 123. First moving block; 13. Guide slot; 131. Guide rod; 132. Guide block; 2. Bending frame; 21. Frame slot; 3. Second drive slot; 31. Second dual-axis motor; 32. Second bidirectional screw; 33. Second moving block; 4. Positioning mechanism; 41. Assembly / disassembly part; 42. Slot; 5. Positioning plate. Detailed Implementation

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

[0025] Please see Figure 1-4 A bending machine positioning mechanism includes a base 1, with legs 11 fixedly connected to the lower surface of the base 1. Two bending frames 2, which move towards or away from each other, are provided on the upper surface of the base 1. Each bending frame 2 has a slot 21 for mounting a metal rod. The mechanism is characterized by including two symmetrically arranged positioning mechanisms 4, each located at the rear end of the corresponding bending frame 2. The positioning mechanisms 4 move via a synchronous drive device on the side of the base 1 and can contact the metal rod. In use, through the coordinated design of the positioning mechanisms 4 and the positioning plate 5, the bending machine achieves high-precision correction and positioning of the metal rod. Driven by the second dual-axis motor 31 and the second bidirectional screw 32 of the synchronous drive device, the positioning mechanisms 4 can flexibly adjust the placement position of the metal rod. The positioning plate 5 is connected to the positioning mechanisms 4 via a disassembly / assembly piece 41, directly contacting both ends of the metal rod to ensure tight alignment. This design not only eliminates minor deviations caused by manual placement but also maintains the stability of the metal rod during bending, significantly improving the accuracy of the bending position and avoiding deviations caused by inaccurate positioning.

[0026] Furthermore, a first drive groove 12 is provided in the middle of the upper surface of the base 1. The first drive groove 12 is provided with a first dual-axis motor 121, a first bidirectional screw 122 and a first moving block 123. The two output ends of the first dual-axis motor 121 are connected to the first bidirectional screw 122. The first bidirectional screw 122 is divided into two sections and is located on both sides of the first dual-axis motor 121. The two sections of the first bidirectional screw 122 have opposite thread directions. In use, the positions of the two bending frames 2 are adjusted according to the length of the metal rod to be bent, and the first dual-axis motor 121 is started to drive the first bidirectional screw 122 at both ends to rotate, which in turn drives the two first moving blocks 123 to move towards or away from each other.

[0027] Furthermore, the surface of the first bidirectional screw 122 is threadedly connected to the first moving block 123, and the upper surface of the first moving block 123 is fixedly connected to the lower end of the bending frame 2. In use, the two first moving blocks 123 drive the bending frame 2 to move towards or away from each other, so that the position can be adjusted according to the length of the metal rod, thereby adapting to the placement of metal rods of various lengths, so as to facilitate subsequent bending work.

[0028] Furthermore, guide grooves 13 are provided on both sides of the upper surface of the base 1. Guide rods 131 are installed inside the guide grooves 13. Guide blocks 132 are slidably connected to the surface of the guide rods 131. The upper end of the guide blocks 132 is fixedly connected to the lower end of the bending frame 2. In use, by setting the guide rods 131 and the guide blocks 132, the stability of the bending frame 2 when moving can be improved.

[0029] Furthermore, the base 1 has a second drive groove 3 on both sides. The synchronous drive device is located inside the second drive groove 3. The synchronous drive device consists of a second dual-axis motor 31, a second bidirectional screw 32, and a second moving block 33. When the metal rod to be bent is placed inside the rack groove 21, its two ends may be slightly uneven due to manual placement. At this time, a positioning operation can be performed. The second dual-axis motor 31 inside the second drive groove 3 is started. The second dual-axis motor 31 drives the second bidirectional screw 32 at both ends to rotate, which in turn drives the second moving blocks 33 at both ends to move towards or away from each other.

[0030] Furthermore, the output end of the second dual-axis motor 31 is connected to the second bidirectional screw 32 for transmission. The second bidirectional screw 32 is divided into two sections, located on both sides of the second dual-axis motor 31, with opposite threads on their surfaces. The second bidirectional screw 32 is threaded with a second moving block 33. When in use, the second moving block 33 can drive the positioning mechanism 4 to move when it moves towards or away from each other.

[0031] Furthermore, the side surface of the second moving block 33 is fixedly connected to the inner surface of the lower end of the positioning mechanism 4, and the inner surface of the upper end of the positioning mechanism 4 is fixedly connected to the disassembly and assembly part 41. When in use, the disassembly and assembly part 41 provided on the side surface of the indoor partition of the positioning mechanism 4 can be used to quickly disassemble and assemble the positioning plate 5, so as to avoid the positioning plate 5 being fixed in position and affecting the loading and unloading of the metal rod.

[0032] Furthermore, the assembly / disassembly part 41 has a slot 42 inside, and a positioning plate 5 is engaged inside the slot 42. In use, when the positioning mechanisms 4 on both sides move toward the bending frame 2, and the positioning plate 5 abuts against the two ends of the metal rod in the frame slot 21, the positioning plate 5 can be used to correct and position the metal rod so that the two ends of the metal rod are tightly aligned. This can effectively ensure that the bending positions of multiple metal rods are consistent, avoid deviations in the bending positions, significantly improve positioning accuracy, and increase production efficiency.

[0033] Working Principle: This utility model discloses a positioning mechanism for a bending machine. When bending metal bars of different lengths, the first dual-axis motor 121 is activated, driving the first bidirectional screw 122 to rotate. Since the first bidirectional screw 122 is divided into two sections with opposite surface threads, the two first moving blocks 123 move towards or away from each other, thereby driving the two bending frames 2 to move synchronously. The position of the bending frames 2 can be flexibly adjusted to ensure the metal bar is accurately placed in the frame groove 21, accommodating metal bars of different lengths. Next, the second dual-axis motor 31 is activated, driving the second bidirectional screw 32 to rotate, causing the two second moving blocks 33 to move towards or away from each other, driving the positioning mechanism 4 to move. When the positioning plate 5 contacts both ends of the metal bar, it can correct and position it, eliminating manual placement errors and ensuring the two ends of the metal bar are tightly aligned. Finally, the bending operation is performed based on the precise positioning of the metal bar. Due to the accurate positioning and consistent bending position, deviations are avoided, significantly improving product quality and consistency.

[0034] 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 positioning mechanism for a bending machine, comprising a base (1), a support leg (11) fixedly connected to the lower surface of the base (1), and two bending frames (2) that move towards or away from each other on the upper surface of the base (1), the bending frames (2) having slots (21) for mounting metal rods, characterized in that, It also includes two symmetrically arranged positioning mechanisms (4), each positioning mechanism (4) is located at the rear end of the corresponding bending frame (2), the positioning mechanism (4) moves through the synchronous drive device on the side of the base (1), and the positioning mechanism (4) can abut against the metal rod.

2. The positioning mechanism for a bending machine according to claim 1, characterized in that: The base (1) has a first drive groove (12) in the middle of its upper surface. The first drive groove (12) is equipped with a first dual-axis motor (121), a first bidirectional screw (122) and a first moving block (123). The two output ends of the first dual-axis motor (121) are connected to the first bidirectional screw (122) for transmission. The first bidirectional screw (122) is divided into two sections and is located on both sides of the first dual-axis motor (121). The two sections of the first bidirectional screw (122) have opposite thread directions.

3. The positioning mechanism for a bending machine according to claim 2, characterized in that: The surface of the first bidirectional screw (122) is threadedly connected to the first moving block (123), and the upper surface of the first moving block (123) is fixedly connected to the lower end of the bending frame (2).

4. The positioning mechanism for a bending machine according to claim 1, characterized in that: The upper surface of the base (1) has guide grooves (13) on both sides. A guide rod (131) is installed inside the guide groove (13). A guide block (132) is slidably connected to the surface of the guide rod (131). The upper end of the guide block (132) is fixedly connected to the lower end of the bending frame (2).

5. A bending machine positioning mechanism according to claim 1, characterized in that: The base (1) has a second drive slot (3) on both sides. The synchronous drive device is located inside the second drive slot (3). The synchronous drive device is a second dual-axis motor (31), a second bidirectional screw (32), and a second moving block (33). The output end of the second dual-axis motor (31) is connected to the second bidirectional screw (32) for transmission.

6. A bending machine positioning mechanism according to claim 5, characterized in that: The second bidirectional screw (32) is divided into two sections, located on both sides of the second dual-axis motor (31), with opposite thread directions on their surfaces. The second bidirectional screw (32) is threaded with a second moving block (33).

7. A bending machine positioning mechanism according to claim 6, characterized in that: The side surface of the second moving block (33) is fixedly connected to the inner surface of the lower end of the positioning mechanism (4), and the inner surface of the upper end of the positioning mechanism (4) is fixedly connected to a disassembly and assembly part (41).

8. A bending machine positioning mechanism according to claim 7, characterized in that: The disassembly part (41) has a slot (42) inside, and a positioning plate (5) is engaged inside the slot (42).