A pipe bending machine

CN224657802UActive Publication Date: 2026-08-21SUZHOU JINTA METAL PRODS
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Patent Information

Application Number
CN202522045519.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-08-21
Estimated Expiration
2035-09-23

AI Technical Summary

Technical Problem

现有的多数管道折弯机对不同直径管道的适应性差,更换模具繁琐,调整压轮与弯管轮之间的间隙费时费力,影响加工效率,同时折弯过程中管道容易因缺乏有效且灵活的限位而在水平和垂直方向上发生偏移或翘起,导致折弯角度不准、管壁起皱甚至报废,为此,我们提出一种管道加工用折弯机

Benefits of technology

[0011]与现有技术相比,本实用新型的有益效果是:本管道加工用折弯机,具有以下好处:

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Abstract

The utility model discloses a pipeline processing is with bending machine relates to bending machine technical field, including the bench body and screw rod, the bench body: the inside fixed motor frame is provided with motor, the bottom surface of motor frame is fixedly installed with the output shaft of motor and support, the inside fixed mounting of support has the pipe bending wheel, the bottom surface fixed of pipe bending wheel has the lock rod, the lock rod is inserted with the rod groove of bench top surface, the screw rod is installed with the screw hole screw thread of support front side, the inside end of screw rod and the lateral surface middle part rotation of wheel frame lateral surface installs, this pipeline processing is with bending machine, realizes the quick accurate regulation of pressure wheel gap through screw rod mechanism, and can easily adapt the processing demand of different pipe diameter, and adjustable limiting unit can effectively restrict the pipeline, prevent the deflection and the warping in the bending process, greatly guarantee the forming quality, and the dismounting unit that sets makes the replacement maintenance of pipe bending wheel and pressure wheel become simple.
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Description

Technical Field

[0001] This utility model relates to the field of bending machine technology, specifically a bending machine for pipe processing. Background Technology

[0002] Pipe bending machines can be broadly classified into CNC pipe bending machines, hydraulic pipe bending machines, etc. They are mainly used for pipeline laying and repair in power construction, railway and highway construction, boilers, bridges, ships, furniture, decoration, etc. They have the advantages of multiple functions, reasonable structure, and simple operation. Pipe bending is a key process in the prefabrication and installation of modern industrial pipelines and is widely used in petrochemical, shipbuilding, aerospace and building water supply and drainage fields. Most existing pipe bending machines have poor adaptability to pipes of different diameters, cumbersome mold changes, and time-consuming and labor-intensive adjustment of the gap between the pressure roller and the bending roller, which affects processing efficiency. At the same time, during the bending process, the pipe is prone to deviation or tilting in the horizontal and vertical directions due to the lack of effective and flexible limiting, resulting in inaccurate bending angle, pipe wall wrinkling, or even scrapping. To address this, we propose a pipe bending machine. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a pipe bending machine. The machine achieves rapid and precise adjustment of the pressure roller gap through a screw mechanism, which can easily adapt to the processing requirements of different pipe diameters. The adjustable limiting unit can effectively constrain the pipe and prevent deviation and warping during the bending process, thus greatly ensuring the forming quality. The disassembly and assembly unit makes the replacement and maintenance of the bending roller and pressure roller convenient, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pipe bending machine, comprising a platform and a screw; Platform: A motor frame is fixed inside, and a motor is installed on the bottom surface of the motor frame. The output shaft of the motor is fixedly installed on the bottom surface of the bracket. A bending wheel is installed inside the bracket, and a locking rod is fixed on the bottom surface of the bending wheel. The locking rod is inserted into the rod groove on the top surface of the platform. A screw is threaded into the screw hole on the front side of the bracket. The inner end of the screw is rotatably installed with the middle of the outer side of the wheel frame. The wheel frame is slidably installed inside the bracket. A pressure roller is installed inside the wheel frame. A limiting unit is provided on the top surface of the platform, and a disassembly unit is provided on the top surface of the bracket. The system also includes a controller, which is fixed to the side of the platform. The input terminal of the motor is electrically connected to the output terminal of the controller, and the input terminal of the controller is electrically connected to the output terminal of an external power source.

[0005] Install appropriate bending rollers and pressure rollers according to the pipe specifications. Rotate the screw to adjust the distance between the pressure roller and the bending roller. Start the motor to drive the pressure roller inside the support to rotate and cooperate with the fixed bending roller to bend the pipe.

[0006] Furthermore, the limiting unit includes a frame, a linear motor, a pressure frame, a shaft seat, a slide rail, a slider, and a limiting seat. The linear motor is fixed inside a groove on the top surface of the platform. A frame is provided on the top surface of the linear motor's moving part. A slide rail is fixed on the bottom surface inside the frame. The slide rail is slidably installed with a groove on the bottom surface of the limiting seat. A slider is fixed on the side of the pressure frame. The slider is slidably installed with a groove inside the limiting seat. A shaft seat is fixed in the middle of the top surface of the pressure frame. The input end of the linear motor is electrically connected to the output end of the controller. The linear motor is started to adjust the horizontal position of the limiting seat. The limiting seat slides on the slide rail to accurately align with the bend point. The pressure frame presses down to fix the top end of the pipe inside the limiting seat to prevent the pipe from moving left and right during the bending process and affecting the bending quality.

[0007] Furthermore, the limiting unit also includes a hydraulic rod, an adjusting seat, a fixed column, a locking block, a handle, and an electric telescopic rod. The adjusting seat is slidably installed inside the adjusting groove on the top surface of the frame. The hydraulic rod is fixed to the top surface of the adjusting seat. The electric telescopic rod is fixed to the front side of the frame. The rear end of the electric telescopic rod is connected to the bottom end of the front side of the fixed column. A locking block corresponding to the locking groove on the front side of the limiting seat is slidably installed inside the fixed column. The handle on the front side of the locking block passes through a through groove on the surface of the fixed column. The input ends of the hydraulic rod and the electric telescopic rod are electrically connected to the output end of the controller. Activating the hydraulic rod can drive the pressure frame to press down, and the sliding locking block is engaged in the locking groove to fix the fixed column and the limiting seat. Activating the electric telescopic rod can adjust the vertical position of the limiting seat.

[0008] Furthermore, the disassembly and assembly unit includes a cover plate, a slot, a rod, an elastic block, a rotating wheel, and a fixed shaft. The cover plate has a rod inside that corresponds to a slot inside the bending wheel. A slot is provided on the side of the cover plate. The elastic block is fixed to the side of the bracket. A fixed shaft is installed on the bottom surface of the rotating wheel. The fixed shaft is inserted into a shaft hole inside the pressure wheel. The thread on the outside of the fixed shaft is threaded into a threaded hole on the top surface of the wheel frame. The elastic block engages with the slot to insert the rod into the bending wheel. Simultaneously, the thread on the outside of the fixed shaft is threaded into the top surface of the wheel frame to insert the fixed shaft into the pressure wheel. This eliminates the cumbersome steps of traditional bolt fixing, saving maintenance time and facilitating subsequent replacement.

[0009] Furthermore, it also includes a slide, a distance sensor, and a frame. The slide is fixed to the top surface of the wheel frame and is slidably connected to a through groove on the top surface of the support. The frame is fixed to the top surface of the support, and a distance sensor is placed inside the frame. The output of the distance sensor is electrically connected to the input of the controller. The distance sensor inside the frame can detect the displacement of the wheel frame in real time, which makes it convenient for personnel to make precise adjustments based on the data during subsequent adjustment processes.

[0010] Furthermore, it also includes a base and a detection camera. The base is fixed to the right side of the bracket, and the detection camera is placed inside the base. The input end of the detection camera is electrically connected to the output end of the controller. During or after the bending process, the detection camera inside the base captures and identifies the bending angle and shape of the pipe fitting, and stops the process in time to reduce losses when problems are detected.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This pipe bending machine has the following advantages: 1. The horizontal position of the limit seat is adjusted by starting the linear motor. The limit seat slides on the slide rail to accurately align with the bend point. Starting the hydraulic rod will drive the pressure frame to press down and fix the top of the pipe inside the limit seat. The sliding locking block will lock into the locking groove to fix the fixing column to the limit seat. Starting the electric telescopic rod can adjust the vertical position of the limit seat to prevent the pipe from moving left and right during the bending process and affecting the bending quality.

[0012] 2. The insert rod is inserted into the bending wheel by the elastic locking block being inserted into the slot. At the same time, the fixed shaft is threaded into the pressure wheel by the outer side of the fixed shaft and the top surface of the wheel frame. This eliminates the cumbersome steps of traditional bolt fixing, saves maintenance time and facilitates subsequent replacement.

[0013] 3. During or after bending, the bending angle and shape of the pipe are captured and identified by the detection camera inside the machine base. If a problem is detected, the bending can be stopped in time to reduce losses. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the platform body of this utility model; Figure 3 This is a schematic diagram of the limiting unit structure of this utility model; Figure 4 This utility model Figure 2 A magnified view of the structure at point A in the middle; Figure 5 This is a schematic diagram of the disassembly and assembly unit structure of this utility model.

[0015] In the diagram: 1. Body, 2. Limiting unit, 21. Frame, 22. Linear motor, 23. Pressure frame, 24. Shaft seat, 25. Slide rail, 26. Slider, 27. Limiting seat, 28. Hydraulic rod, 29. Adjusting seat, 210. Fixed column, 211. Locking block, 212. Handle, 213. Electric telescopic rod, 3. Disassembly unit, 31. Cover plate, 32. Slot, 33. Insert rod, 34. Elastic locking block, 35. Rotary wheel, 36. Fixed shaft, 4. Motor frame, 5. Motor, 6. Bracket, 7. Bending tube wheel, 8. Screw, 9. Wheel frame, 10. Pressure wheel, 11. Slide, 12. Distance sensor, 13. Frame, 14. Base, 15. Detection camera, 16. Controller, 17. Locking rod. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-5 This embodiment provides a technical solution: a pipe bending machine, including a platform 1 and a screw 8; Platform 1: An internal motor frame 4 is fixedly mounted. A motor 5 is mounted on the bottom surface of the motor frame 4. The output shaft of the motor 5 is fixedly installed on the bottom surface of a bracket 6. A bent tube wheel 7 is installed inside the bracket 6. A locking rod 17 is fixed to the bottom surface of the bent tube wheel 7. The locking rod 17 is inserted into a groove on the top surface of the platform 1. A screw 8 is threaded into a screw hole on the front side of the bracket 6. The inner end of the screw 8 is rotatably mounted to the middle of the outer side of a wheel frame 9. The wheel frame 9 is slidably mounted inside the bracket 6. A pressure roller 10 is installed inside the wheel frame 9. A limiting unit 2 is provided on the top surface of the platform 1. The limiting unit 2 includes a frame 21, a linear motor 22, a pressure frame 23, a shaft seat 24, a slide rail 25, a slider 26, and a limiting seat 27. The linear motor 22 is fixed inside a groove on the top surface of the platform 1. The top surface of the 22 moving base is provided with a frame 21, and the bottom surface inside the frame 21 is fixed with a slide rail 25. The slide rail 25 is slidably installed with the slide groove on the bottom surface of the limit seat 27. The side of the pressure frame 23 is fixed with a slider 26, which is slidably installed with the slide groove inside the limit seat 27. The middle of the top surface of the pressure frame 23 is fixed with a shaft seat 24. The input end of the linear motor 22 is electrically connected to the output end of the controller 16. The linear motor 22 is started to adjust the horizontal position of the limit seat 27. The limit seat 27 slides on the slide rail 25 to accurately align with the bend point. The pressure frame 23 presses down to fix the top end of the pipe inside the limit seat 27 to prevent the pipe from moving left and right during the bending process and affecting the bending quality. The limit unit 2 also includes a hydraulic rod 28, an adjusting seat 29, and a fixing column 210. The frame 21 consists of a locking block 211, a handle 212, and an electric telescopic rod 213. An adjusting seat 29 is slidably installed inside an adjusting groove on the top surface of the frame 21. A hydraulic rod 28 is fixed to the top surface of the adjusting seat 29. The electric telescopic rod 213 is fixed to the front side of the frame 21, and its rear end is connected to the bottom end of the front side of the fixed column 210. A locking block 211, corresponding to the locking groove on the front side of the limiting seat 27, is slidably installed inside the fixed column 210. The handle 212 on the front side of the locking block 211 passes through a through groove on the surface of the fixed column 210. The input ends of the hydraulic rod 28 and the electric telescopic rod 213 are electrically connected to the output end of the controller 16. Activating the hydraulic rod 28 causes the pressure frame 23 to press down, and the sliding locking block 211 engages with the locking groove to... The fixed column 210 is fixed to the limiting seat 27. Activating the electric telescopic rod 213 adjusts the vertical position of the limiting seat 27. The top surface of the bracket 6 is equipped with a disassembly unit 3, which includes a cover plate 31, a slot 32, a rod 33, an elastic block 34, a rotating wheel 35, and a fixed shaft 36. The cover plate 31 has a rod 33 fixed inside, corresponding to a slot inside the bending wheel 7. The cover plate 31 has a slot 32 on its side. The elastic block 34 is fixed to the side of the bracket 6. The bottom surface of the rotating wheel 35 is equipped with a fixed shaft 36, which is inserted into a shaft hole inside the pressure roller 10. The thread on the outside of the fixed shaft 36 is threaded into a screw hole on the top surface of the wheel frame 9. The elastic block 34 engages with the slot 32 to insert the rod 33 into the bending wheel 7.Meanwhile, the fixed shaft 36 is threaded onto the top surface of the wheel frame 9 to insert it into the pressure roller 10, eliminating the cumbersome steps of traditional bolt fixing, saving maintenance time and facilitating subsequent replacement. The system includes a controller 16, which is fixed to the side of the platform 1. The input of the motor 5 is electrically connected to the output of the controller 16, and the input of the controller 16 is electrically connected to the output of an external power supply. Appropriate bending rollers 7 and pressure rollers 10 are installed according to the pipe specifications. The distance between the pressure roller 7 and the bending roller 7 is adjusted by rotating the screw 8. The motor 5 is started to drive the pressure roller 10 inside the support 6 to rotate and cooperate with the fixed bending roller 7 to bend the pipe. The system also includes a slide 11, a distance sensor 12, and a frame 13. The slide 11 is fixed to the top surface of the wheel frame 9 and is slidably connected to the through groove on the top surface of the support 6. The frame 13 is fixed to the top surface of the support 6. The unit is equipped with a distance sensor 12, the output of which is electrically connected to the input of the controller 16. The distance sensor 12 inside the frame 13 can detect the displacement of the wheel frame 9 in real time, which makes it convenient for personnel to make precise adjustments based on the data during subsequent adjustments. The unit also includes a base 14 and a detection camera 15. The base 14 is fixed to the right side of the bracket 6. The detection camera 15 is placed inside the base 14. The input of the detection camera 15 is electrically connected to the output of the controller 16. During or after bending, the detection camera 15 inside the base 14 captures and identifies the bending angle and shape of the pipe fitting. If a problem is detected, the unit can stop the bending in time to reduce losses.

[0018] The working principle of the pipe bending machine provided by this utility model is as follows: First, the elastic block 34 is inserted into the slot 32 to insert the insertion rod 33 into the pipe bending wheel 7. At the same time, the outer side of the fixing shaft 36 is threaded to the top surface of the wheel frame 9 to insert the fixing shaft 36 into the pressure roller 10. This facilitates the installation of the pipe bending wheel 7 and the pressure roller 10. The linear motor 22 is started to adjust the horizontal position of the limit seat 27. The limit seat 27 slides on the slide rail 25 to accurately align with the bending point. The hydraulic rod 28 is started to drive the pressure frame 23 to press down and fix the top end of the pipe inside the limit seat 27. The sliding locking block 211 engages with the locking groove to fix the fixing post 210 and the limiting seat 27. Activating the electric telescopic rod 213 adjusts the vertical position of the limiting seat 27 to prevent the pipe from shifting left and right during bending and affecting the bending quality. Finally, the motor 5 drives the pressure roller 10 inside the bracket 6 to rotate and cooperate with the fixed bending roller 7 to bend the pipe. The detection camera 15 inside the base 14 captures and identifies the bending angle and shape of the pipe during or after bending, and stops the process in time to reduce losses when problems are detected.

[0019] It is worth noting that the controller 16 disclosed in the above embodiments is provided with buttons on its surface corresponding to the linear motor 22, hydraulic rod 28, electric telescopic rod 213, motor 5, distance sensor 12, and detection camera 15. The controller 16 controls the operation of the linear motor 22, hydraulic rod 28, electric telescopic rod 213, motor 5, distance sensor 12, and detection camera 15 using methods commonly used in the prior art.

[0020] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pipe bending machine, characterized in that: Includes platform (1) and screw (8); Platform (1): A motor frame (4) is fixed inside. A motor (5) is installed on the bottom surface of the motor frame (4). The output shaft of the motor (5) is fixedly installed on the bottom surface of the bracket (6). A bending wheel (7) is installed inside the bracket (6). A locking rod (17) is fixed on the bottom surface of the bending wheel (7). The locking rod (17) is inserted into the rod groove on the top surface of the platform (1). The screw (8) is threadedly installed in the screw hole on the front side of the bracket (6). The inner end of the screw (8) is rotatably installed in the middle of the outer side of the wheel frame (9). The wheel frame (9) is slidably installed inside the bracket (6). A pressure roller (10) is installed inside the wheel frame (9). A limiting unit (2) is provided on the top surface of the platform (1). A disassembly unit (3) is provided on the top surface of the bracket (6). The system also includes a controller (16), which is fixed to the side of the platform (1). The input end of the motor (5) is electrically connected to the output end of the controller (16), and the input end of the controller (16) is electrically connected to the output end of an external power source.

2. The pipe bending machine according to claim 1, characterized in that: The limiting unit (2) includes a frame (21), a linear motor (22), a pressure frame (23), a shaft seat (24), a slide rail (25), a slider (26), and a limiting seat (27). The linear motor (22) is fixed inside the groove on the top surface of the platform (1). The frame (21) is provided on the top surface of the moving part of the linear motor (22). The slide rail (25) is fixed on the bottom surface inside the frame (21). The slide rail (25) is slidably installed with the sliding groove on the bottom surface of the limiting seat (27). The slider (26) is fixed on the side of the pressure frame (23). The slider (26) is slidably installed with the sliding groove inside the limiting seat (27). The shaft seat (24) is fixed in the middle of the top surface of the pressure frame (23). The input end of the linear motor (22) is electrically connected to the output end of the controller (16).

3. A pipe bending machine according to claim 2, characterized in that: The limiting unit (2) also includes a hydraulic rod (28), an adjusting seat (29), a fixed column (210), a locking block (211), a handle (212), and an electric telescopic rod (213). The adjusting seat (29) is slidably installed inside the adjusting groove on the top surface of the frame (21). The hydraulic rod (28) is fixed on the top surface of the adjusting seat (29). The electric telescopic rod (213) is fixed on the front side of the frame (21). The rear end of the electric telescopic rod (213) is connected to the bottom end of the front side of the fixed column (210). The fixed column (210) is slidably installed with a locking block (211) that is inserted into the locking groove on the front side of the limiting seat (27). The handle (212) on the front side of the locking block (211) passes through the through groove on the surface of the fixed column (210). The input ends of the hydraulic rod (28) and the electric telescopic rod (213) are electrically connected to the output end of the controller (16).

4. A pipe bending machine according to claim 1, characterized in that: The disassembly and assembly unit (3) includes a cover plate (31), a slot (32), a rod (33), an elastic block (34), a rotating wheel (35), and a fixed shaft (36). The inside of the cover plate (31) is fixed with a rod (33) that corresponds to the slot inside the bending wheel (7). The side of the cover plate (31) is provided with a slot (32). The elastic block (34) is fixed to the side of the bracket (6). The bottom surface of the rotating wheel (35) is equipped with a fixed shaft (36). The fixed shaft (36) is inserted into the shaft hole inside the pressure wheel (10). The thread on the outside of the fixed shaft (36) is threaded into the screw hole on the top surface of the wheel frame (9).

5. A pipe bending machine according to claim 1, characterized in that: It also includes a slide (11), a distance sensor (12) and a frame (13). The slide (11) is fixed on the top surface of the wheel frame (9). The slide (11) is slidably connected to the through groove on the top surface of the support (6). The frame (13) is fixed on the top surface of the support (6). The distance sensor (12) is placed inside the frame (13). The output end of the distance sensor (12) is electrically connected to the input end of the controller (16).

6. A pipe bending machine according to claim 1, characterized in that: It also includes a base (14) and a detection camera (15). The base (14) is fixed to the right side of the bracket (6). The detection camera (15) is placed inside the base (14). The input end of the detection camera (15) is electrically connected to the output end of the controller (16).