Bending mechanism of pipe bending machine

By utilizing the bending mechanism of the pipe bending machine and the clamping and pushing device driven by a motor, the problems of displacement and detachment of steel pipes during the bending process are solved, achieving high-precision steel pipe bending processing, reducing safety hazards and improving production efficiency.

CN223981020UActive Publication Date: 2026-03-10CHANGZHOU KAIZE ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing steel pipe bending devices are prone to causing steel pipe displacement or detachment during processing, resulting in inaccurate bending angles, reduced production efficiency, and safety hazards.

Method used

A bending mechanism for a pipe bending machine is adopted, including a clamping mechanism and a feeding mechanism. The clamping and pushing device driven by a motor ensures that the steel pipe is stably clamped during the bending process. The spring-reset chuck is used to reduce errors and improve accuracy.

Benefits of technology

It effectively reduces the displacement and detachment of steel pipes during bending, improves processing accuracy, reduces safety hazards, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223981020U_ABST
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Abstract

The utility model discloses a bending mechanism of a pipe bending machine, which comprises a base, a bending device is arranged at the upper end of the base, a clamping mechanism is arranged at the upper end of the base, the clamping mechanism is positioned behind the bending device, a feeding mechanism is arranged at the upper end of the base, the feeding mechanism is positioned behind the clamping mechanism, and the bending device is arranged at the upper end of the base. The front end of the base is fixedly connected with a slope, and the lower end of the slope is fixedly connected with a collecting box. According to the bending mechanism of the pipe bending machine, a pipeline is clamped in the bending machining process, the stable position and posture of the pipeline can be kept, errors in the bending process can be reduced, the machining precision is improved, and meanwhile potential safety hazards caused by moving or falling off to workers are reduced.
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Description

Technical Field

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

[0002] A pipe bending machine is a device used to bend metal pipes. It is widely used in industrial production and construction. Because metal has a certain degree of ductility, it can bend straight pipes into various shapes to meet the production needs of different fields.

[0003] Existing steel pipe bending devices have some drawbacks. When bending steel pipes, the lack of fixation can easily lead to displacement and detachment, resulting in inaccurate bending angles and shapes, reduced production efficiency, and safety hazards for operators and equipment. To solve these problems, we propose a bending mechanism for a pipe bending machine. Utility Model Content

[0004] The main purpose of this utility model is to provide a bending mechanism for a pipe bending machine, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A bending mechanism for a pipe bending machine includes a base, a bending device at the upper end of the base, a clamping mechanism at the upper end of the base located behind the bending device, a feeding mechanism at the upper end of the base located behind the clamping mechanism, a ramp fixedly connected to the front end of the base, and a collection box fixedly connected to the lower end of the ramp.

[0007] Preferably, the bending device includes a first motor, which is installed on the inner side of the base. The output end of the first motor is fixedly connected to a rotating shaft, and a bending die is fixedly connected to the outer side of the rotating shaft.

[0008] Preferably, the clamping mechanism includes two sets of second motors, the second motors are installed on the inner side of the base, the output end of the second motor is fixedly connected to a rotating shaft, the outer side of the rotating shaft is fixedly connected to a half gear, and the upper end of the base is fixedly connected to two sets of symmetrical fixing plates, and the inner side of each of the two sets of fixing plates is slidably connected to a sliding rod.

[0009] Preferably, each of the two sets of sliding rods has a push plate fixedly connected to one end of its opposite side, and a spring is movably connected between the fixed plate and the push plate. Each of the two sets of push plates has a toothed plate fixedly connected to one side of its opposite side, and the toothed plate meshes with a half gear. Each of the two sets of toothed plates has a chuck fixedly connected to one side of its opposite side, and a slider is fixedly connected to the lower end of the toothed plate and the chuck. The upper end of the base has a sliding groove, and the slider is slidably connected to the inner side of the sliding groove.

[0010] Preferably, the feeding mechanism includes a feeding shell, which is fixedly connected to the upper end of the base. A cylindrical groove is provided at the upper end of the feeding shell, and the cylindrical groove communicates with the inner side of the feeding shell. Two sets of fixing plates are fixedly connected to the upper end of the feeding shell, and a rotating cylinder is rotatably connected to the upper ends of the two sets of fixing plates.

[0011] Preferably, a first fixing frame is fixedly connected to the upper end of the base, a third motor is fixedly connected to the inner side of the first fixing frame, the output end of the third motor is fixedly connected to the tilting cylinder, a second fixing frame is fixedly connected to the upper end of the base, an electric push rod is fixedly connected to the inner side of the second fixing frame, a circular plate is fixedly connected to the output end of the electric push rod, and the circular plate is located inside the feed shell.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In use, the bending mechanism of this pipe bending machine involves placing a steel pipe into a tilting cylinder. Starting the third motor causes the steel pipe to fall into the feeding shell. Then, an electric pusher pushes a circular plate, causing the steel pipe to slide forward in a cylindrical groove until it passes through the bending die. Next, starting the second motor causes the rotating shaft to drive a half-gear to rotate. The half-gear then meshes with a toothed plate, pushing two sets of clamps to hold the steel pipe. At this point, the second motor is turned off, and the steel pipe continues to be clamped until bending is complete. Then, starting the second motor again causes the half-gear to rotate to a position where it no longer meshes with the toothed plate. A spring then returns the clamps to their original position. This clamping mechanism maintains a stable position and posture during the pipe bending process, helping to reduce errors during bending, improving processing accuracy, and reducing safety hazards to workers caused by movement or detachment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the bending mechanism of a pipe bending machine according to the present invention;

[0014] Figure 2 This is a partial structural schematic diagram of the bending mechanism of a pipe bending machine according to the present invention;

[0015] Figure 3 This is a partial structural cross-section of the bending mechanism of a pipe bending machine according to the present invention. Figure 1 ;

[0016] Figure 4 This is an exploded view of a portion of the bending mechanism of a pipe bending machine according to this utility model;

[0017] Figure 5 This is a partial structural cross-section of the bending mechanism of a pipe bending machine according to the present invention. Figure 2 ;

[0018] In the diagram: 1. Base; 2. Steel pipe; 3. Bending device; 4. Clamping mechanism; 5. Feeding mechanism; 6. Inclined ramp; 7. Collection box; 31. First motor; 32. Rotating shaft one; 33. Bending die; 41. Second motor; 42. Rotating shaft two; 43. Half gear; 44. Fixed plate one; 45. Slide rod; 46. Push plate; 47. Spring; 48. Toothed plate; 49. Chuck; 410. Slider; 411. Slide groove; 51. Feed shell; 52. Cylindrical groove; 53. Fixed plate two; 54. Tilting cylinder; 55. Fixed frame one; 56. Third motor; 57. Fixed frame two; 58. Electric push rod; 59. Circular plate. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figures 1-5 As shown, a bending mechanism for a pipe bending machine includes a base 1, a bending device 3 at the upper end of the base 1, a clamping mechanism 4 at the upper end of the base 1, the clamping mechanism 4 being located behind the bending device 3, a feeding mechanism 5 at the upper end of the base 1, the feeding mechanism 5 being located behind the clamping mechanism 4, a ramp 6 fixedly connected to the front end of the base 1, and a collection box 7 fixedly connected to the lower end of the ramp 6.

[0021] In this embodiment, the bending device 3 includes a first motor 31, which is installed on the inner side of the base 1. The output end of the first motor 31 is fixedly connected to a rotating shaft 32, and a bending mold 33 is fixedly connected to the outer side of the rotating shaft 32.

[0022] Specifically, the first motor 31 is installed on the inside of the base 1. Starting the first motor 31 can make the rotating shaft 32 rotate, and at the same time the bending mold 33 rotates to perform bending processing.

[0023] In this embodiment, the clamping mechanism 4 includes two sets of second motors 41. The second motors 41 are installed on the inner side of the base 1. The output end of the second motor 41 is fixedly connected to a rotating shaft 42. A half gear 43 is fixedly connected to the outer side of the rotating shaft 42. Two sets of symmetrical fixing plates 44 are fixedly connected to the upper end of the base 1. Sliding rods 45 are slidably connected to the inner side of both sets of fixing plates 44.

[0024] Specifically, by starting the second motor 41, the second shaft 42 can be rotated, which in turn drives the half gear 43 to rotate. Then, two sets of symmetrical fixing plates 44 are fixedly connected to the upper end of the base 1, and sliding rods 45 are slidably connected to the inner side of both sets of fixing plates 44.

[0025] In this embodiment, push plates 46 are fixedly connected to the opposite ends of the two sets of slide rods 45. A spring 47 is movably connected between the fixed plate 44 and the push plate 46. A toothed plate 48 is fixedly connected to the opposite side of the two sets of push plates 46. The toothed plate 48 meshes with the half gear 43. A chuck 49 is fixedly connected to the opposite side of the two sets of toothed plates 48. A slider 410 is fixedly connected to the lower ends of the toothed plate 48 and the chuck 49. A slide groove 411 is provided at the upper end of the base 1. The slider 410 is slidably connected to the inner side of the slide groove 411.

[0026] Specifically, a spring 47 is movably connected between the fixed plate 44 and the push plate 46, allowing the push plate 46 to move by extending and retracting the spring 47. The half gear 43 meshes with the toothed plate 48. When the chuck 49 clamps, the second motor 41 is turned off. After bending is completed, the second motor 41 is restarted. At this time, the half gear 43 and the toothed plate 48 are not meshed, and the spring 47 retracts, causing the push plate 46 to return to its original position.

[0027] In this embodiment, the feeding mechanism 5 includes a feeding shell 51, which is fixedly connected to the upper end of the base 1. A cylindrical groove 52 is provided at the upper end of the feeding shell 51, and the cylindrical groove 52 communicates with the inner side of the feeding shell 51. Two sets of fixing plates 53 are fixedly connected to the upper end of the feeding shell 51, and the upper ends of the two sets of fixing plates 53 are rotatably connected to a rotating cylinder 54.

[0028] Specifically, a cylindrical groove 52 is provided at the upper end of the feed shell 51, and the cylindrical groove 52 is connected to the inner side of the feed shell 51. Two sets of fixing plates 53 are fixedly connected to the upper end of the feed shell 51, and the tilting cylinder 54 is rotatably connected to the upper end of the two sets of fixing plates 53.

[0029] In this embodiment, a first fixing frame 55 is fixedly connected to the upper end of the base 1, a third motor 56 is fixedly connected to the inner side of the first fixing frame 55, the output end of the third motor 56 is fixedly connected to the tilting cylinder 54, a second fixing frame 57 is fixedly connected to the upper end of the base 1, an electric push rod 58 is fixedly connected to the inner side of the second fixing frame 57, a circular plate 59 is fixedly connected to the output end of the electric push rod 58, and the circular plate 59 is located inside the feed shell 51.

[0030] Specifically, by starting the third motor 56, the tilting cylinder 54 can be rotated. The output end of the electric push rod 58 is fixedly connected to a circular plate 59. Starting the electric push rod 58 pushes the circular plate 59 forward.

[0031] It should be noted that this utility model is a bending mechanism for a pipe bending machine. In use, the steel pipe 2 is placed into the tilting cylinder 54. By starting the third motor 56, the tilting cylinder 54 is tilted, and the steel pipe 2 falls into the feed housing 51. The electric push rod 58 is activated, causing the circular plate 59 to push the steel pipe 2 forward until it passes through the bending die 33. Then, the second motor 41 is activated, causing the rotating shaft 42 to drive the half gear 43 to rotate. The half gear 43 then meshes with the toothed plate 48, which in turn causes the toothed plate 48 to move the slider 410. The chuck 49 clamps the steel pipe 2. At this time, the second motor 41 is turned off and the first motor 31 is started, which can make the rotating shaft 32 drive the bending mold 33 to rotate and bend the steel pipe 2. After the processing is completed, the second motor 41 is started again. At this time, the half gear 43 and the toothed plate 48 do not mesh. Then, the spring 47 retracts, which makes the push plate 46 drive the toothed plate 48 and the chuck 49 to move to their original positions. Then, the electric push rod 58 pushes the next group of steel pipes 2 forward, which can make the previous group of steel pipes 2 slide down the ramp 6 into the collection box 7 to complete the collection.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bending mechanism of a pipe bending machine comprising a base (1), characterized in that: The upper end of the base (1) is provided with a bending device (3), the upper end of the base (1) is provided with a clamping mechanism (4), the clamping mechanism (4) is located behind the bending device (3), the upper end of the base (1) is provided with a feeding mechanism (5), the feeding mechanism (5) is located behind the clamping mechanism (4), the front end of the base (1) is fixedly connected with an inclined slope (6), and the lower end of the inclined slope (6) is fixedly connected with a collecting box (7).

2. A bending mechanism of a pipe bending machine according to claim 1, characterized in that: The bending device (3) comprises a first motor (31), the first motor (31) is installed on the inner side of the base (1), the output end of the first motor (31) is fixedly connected with a rotating shaft (32), and the outer side of the rotating shaft (32) is fixedly connected with a bending die (33).

3. A bending mechanism of a pipe bending machine according to claim 1, characterized in that: The clamping mechanism (4) comprises two groups of second motors (41), the second motors (41) are installed on the inner side of the base (1), the output ends of the second motors (41) are fixedly connected with rotating shafts (42), the outer sides of the rotating shafts (42) are fixedly connected with half gears (43), the upper end of the base (1) is fixedly connected with two groups of symmetrical fixed plates (44), and the inner sides of the two groups of fixed plates (44) are slidably connected with slide rods (45).

4. A bending mechanism for a tube bender as defined in claim 3 wherein: The opposite ends of the two groups of slide rods (45) are fixedly connected with push plates (46), the fixed plates (44) and the push plates (46) are movably connected with springs (47), the opposite sides of the two groups of push plates (46) are fixedly connected with toothed plates (48), the toothed plates (48) are meshed with the half gears (43), the opposite sides of the two groups of toothed plates (48) are fixedly connected with chuck heads (49), the toothed plates (48) and the lower ends of the chuck heads (49) are fixedly connected with slide blocks (410), the upper end of the base (1) is provided with a sliding groove (411), and the slide blocks (410) are slidably connected to the inner side of the sliding groove (411).

5. The bending mechanism of a pipe bending machine according to claim 1, characterized in that: The feeding mechanism (5) comprises a feeding shell (51), the feeding shell (51) is fixedly connected to the upper end of the base (1), the upper end of the feeding shell (51) is provided with a cylindrical groove (52), the cylindrical groove (52) penetrates the inner side of the feeding shell (51), the upper end of the feeding shell (51) is fixedly connected with two groups of fixed plates (53), and the upper ends of the two groups of fixed plates (53) are movably connected with a turnover cylinder (54).

6. A bending mechanism for a tube bender according to claim 5 wherein: The upper end of the base (1) is fixedly connected with a fixed frame (55), the inner side of the fixed frame (55) is fixedly connected with a third motor (56), the output end of the third motor (56) is fixedly connected with the turnover cylinder (54), the upper end of the base (1) is fixedly connected with a fixed frame (57), the inner side of the fixed frame (57) is fixedly connected with an electric push rod (58), the output end of the electric push rod (58) is fixedly connected with a circular plate (59), and the circular plate (59) is located on the inner side of the feeding shell (51).