A pipe bending die for a pipe bender

Abstract

The utility model relates to the technical field of pipe bender, and disclose a pipe bending mould for pipe bender, including support frame, adjusting assembly and transposition mechanism, the bottom fixed connection of support frame has stepping motor, the output of stepping motor penetrates to the top of support frame. This pipe bending mould for pipe bender, through the output of servo motor drive screw rod and rotate, screw rod utilizes the action of screw thread and drive screw bushing and moves horizontally in the rotation process, and screw bushing drives adjusting pipe bending wheel and moves horizontally through connecting rod, adjusts the interval between adjusting pipe bending wheel and spacing pipe bending wheel, and through the output of stepping motor drive pipe bending carousel rotation cooperation, the workpiece is bent pipe, can under not interrupting production or only needing short temporary suspension, fast change two wheel interval, to realize the processing of different bending radius pipe fittings on the same equipment, greatly improved the flexibility and efficiency of production.

Description

Technical Field

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

[0002] A pipe bending machine is a machine used for bending pipes. Pipe bending machines can be broadly classified into CNC pipe bending machines, hydraulic pipe bending machines, horizontal 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, and other fields.

[0003] Existing pipe bending machines use fixed molds, and the distance between the adjusting bending wheel and the limiting bending wheel cannot be dynamically adjusted. This structural defect leads to numerous production bottlenecks. Changing to different bending radii requires stopping the machine to disassemble the mold, resulting in low production efficiency and severely underutilized equipment. Companies are forced to invest heavily in stockpiling molds of various specifications, increasing procurement costs and occupying valuable storage space. The manual mold-changing process inevitably introduces positioning errors, directly affecting product accuracy and consistency, and increasing scrap rates. More importantly, this rigid structure completely limits the implementation of advanced processes such as variable radius bending, making the equipment unable to meet the processing needs of complex irregular-shaped pipes in aerospace, automotive manufacturing, and other fields. Utility Model Content

[0004] The purpose of this utility model is to provide a pipe bending mold for a pipe bending machine to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A pipe bending die for a pipe bending machine, comprising: A support frame, wherein a stepper motor is fixedly connected to the bottom of the support frame, the output end of the stepper motor extends through to the top of the support frame, and a bending turntable is fixedly connected to the output end of the stepper motor, and an adjustment box is fixedly connected to the back side of the top of the bending turntable. An adjusting assembly is located inside the adjusting box. The adjusting assembly includes a screw, which is movably connected to the middle end of the adjusting box cavity via a bearing. A threaded sleeve is threaded onto the surface of the screw, and a connecting rod is fixedly connected to the top of the threaded sleeve. An adjusting bent tube wheel is fixedly connected to the top of the connecting rod. The shifting mechanism includes a gear, which is movably connected to the top of the bending turntable via a rotating shaft. A limiting bending wheel is fixedly connected to the top of the gear, and bending grooves are provided on the surfaces of both the adjusting bending wheel and the limiting bending wheel.

[0006] As a further embodiment of this utility model: the adjustment assembly further includes a servo motor for driving the screw to rotate, the servo motor being fixedly connected to the back side of the adjustment box, and the output end of the servo motor being fixedly connected to the back side of the screw.

[0007] As a further embodiment of this utility model: a transverse sliding groove is provided at the bottom of the inner cavity of the regulating box, and a slider is fixedly connected to the bottom of the screw sleeve, with the bottom of the slider slidably connected to the inner cavity of the transverse sliding groove.

[0008] As a further improvement of this utility model: the top of the regulating box is provided with a through groove, and the top of the connecting rod passes through the inner cavity of the through groove and extends to the top of the regulating box.

[0009] As a further embodiment of this utility model: an L-shaped plate is fixedly connected to the left side of the support frame, the shifting mechanism includes a hydraulic cylinder, the hydraulic cylinder is fixedly connected to the left side of the L-shaped plate, and a toothed plate is fixedly connected to the output end of the hydraulic cylinder, the toothed plate and the gear meshing through teeth.

[0010] As a further embodiment of this utility model: a fixing plate is fixedly connected to the back side of the top of the support frame, a cylinder is fixedly connected to the back side of the fixing plate, and a limit frame is fixedly connected to the output end of the cylinder.

[0011] As a further embodiment of this utility model: sliding columns are fixedly connected to both the left and right sides of the bottom of the bending turntable, and an annular sliding groove is provided on the outer side of the top of the support frame, with the bottom of the sliding column slidably connected to the inner cavity of the annular sliding groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses the output end of a servo motor to drive a screw to rotate. During the rotation of the screw, the screw uses the thread to drive the screw sleeve to move horizontally. The screw sleeve drives the adjusting bending wheel to move horizontally through the connecting rod, thereby adjusting the distance between the adjusting bending wheel and the limiting bending wheel. In conjunction with the output end of a stepper motor to drive the bending turntable to rotate, the workpiece is bent. It can quickly change the distance between the two wheels without interrupting production or with only a short pause, thereby realizing the processing of pipes with different bending radii on the same machine, greatly improving the flexibility and efficiency of production.

[0013] 2. This utility model effectively improves the stability of the bending wheel during horizontal movement by setting a transverse sliding groove and a slider. By setting a through groove, the connecting rod can be guided and limited. By setting an annular sliding groove and a sliding column, the stability of the bending turntable during rotation can be effectively improved. The output end of the hydraulic cylinder extends to the right and drives the toothed plate to move to the right. The toothed plate drives the gear to rotate by the meshing of the teeth. The gear drives the limiting bending wheel to turn, so that the bending groove on the surface of the limiting bending wheel no longer limits the workpiece, which can effectively improve the output efficiency of the workpiece after bending. Attached Figure Description

[0014] Figure 1 This is a first-view structural schematic diagram of a pipe bending die used in a pipe bending machine; Figure 2 This is a schematic diagram of a pipe bending die used in a pipe bending machine from a second perspective. Figure 3 This is a schematic diagram of the structure of an adjusting component in a pipe bending die used in a pipe bending machine; Figure 4 This is a schematic diagram of the shifting mechanism in a pipe bending die used in a pipe bending machine.

[0015] In the diagram: 1. Support frame; 2. Stepper motor; 3. Bending turntable; 4. Adjustment box; 5. Adjustment assembly; 501. Servo motor; 502. Screw; 503. Screw sleeve; 504. Connecting rod; 505. Adjusting bending wheel; 506. Slider; 6. L-shaped plate; 7. Positioning mechanism; 701. Hydraulic cylinder; 702. Toothed plate; 703. Gear; 704. Limiting bending wheel; 8. Fixing plate; 9. Cylinder; 10. Limiting frame; 11. Annular slide groove; 12. Sliding column; 13. Transverse slide groove; 14. Through groove; 15. Bending groove. Detailed Implementation

[0016] Please see Figure 1-4A pipe bending die for a pipe bending machine includes a support frame 1, an adjusting assembly 5, and a shifting mechanism 7. A stepper motor 2 is fixedly connected to the bottom of the support frame 1. The output end of the stepper motor 2 extends through to the top of the support frame 1, and a pipe bending turntable 3 is fixedly connected to the output end of the stepper motor 2. An adjusting box 4 is fixedly connected to the back side of the top of the pipe bending turntable 3. The adjusting assembly 5 is located in the inner cavity of the adjusting box 4. The adjusting assembly 5 includes a screw 502, which is movably connected to the middle end of the inner cavity of the adjusting box 4 via a bearing. A threaded sleeve 5 is threadedly connected to the surface of the screw 502. 03. A connecting rod 504 is fixedly connected to the top of the screw sleeve 503. An adjusting bending wheel 505 is fixedly connected to the top of the connecting rod 504. The adjusting assembly 5 also includes a servo motor 501 for driving the screw 502 to rotate. The servo motor 501 is fixedly connected to the back side of the adjusting box 4. The output end of the servo motor 501 is fixedly connected to the back side of the screw 502. A transverse sliding groove 13 is provided at the bottom of the inner cavity of the adjusting box 4. A slider 506 is fixedly connected to the bottom of the screw sleeve 503. The bottom of the slider 506 is slidably connected to the inner cavity of the transverse sliding groove 13.

[0017] Through the above technical solution, the output end of the servo motor 501 drives the screw 502 to rotate. During the rotation, the screw 502 uses the thread to drive the screw sleeve 503 to move horizontally. The screw sleeve 503 drives the adjusting bending wheel 505 to move horizontally through the connecting rod 504, thereby adjusting the distance between the adjusting bending wheel 505 and the limiting bending wheel 704. In conjunction with the output end of the stepper motor 2 driving the bending turntable 3 to rotate, the workpiece is bent. It is possible to quickly change the distance between the two wheels without interrupting production or with only a short pause, thereby realizing the processing of pipes with different bending radii on the same machine, which greatly improves the flexibility and efficiency of production. By setting the transverse slide 13 and the slider 506, the stability of the adjusting bending wheel 505 during horizontal movement can be effectively improved. By setting the through groove 14, the connecting rod 504 can be guided and limited.

[0018] Specifically, the shifting mechanism 7 includes a gear 703, which is movably connected to the top of the bending turntable 3 via a rotating shaft. A limiting bending wheel 704 is fixedly connected to the top of the gear 703. Bending grooves 15 are opened on the surfaces of both the adjusting bending wheel 505 and the limiting bending wheel 704. A through groove 14 is opened through the top of the adjusting box 4. The top of the connecting rod 504 passes through the inner cavity of the through groove 14 and extends to the top of the adjusting box 4. An L-shaped plate 6 is fixedly connected to the left side of the support frame 1. The shifting mechanism 7 includes a hydraulic cylinder 701. 01 is fixedly connected to the left side of the L-shaped plate 6. The output end of the hydraulic cylinder 701 is fixedly connected to the toothed plate 702. The toothed plate 702 and the gear 703 mesh with each other through teeth. The back side of the top of the support frame 1 is fixedly connected to the fixing plate 8. The back side of the fixing plate 8 is fixedly connected to the cylinder 9. The output end of the cylinder 9 is fixedly connected to the limit frame 10. The left and right sides of the bottom of the bending turntable 3 are fixedly connected to the sliding column 12. The outer side of the top of the support frame 1 is provided with an annular sliding groove 11. The bottom of the sliding column 12 is slidably connected to the inner cavity of the annular sliding groove 11.

[0019] By using the above technical solution, the stability of the bending turntable 3 during rotation can be effectively improved by setting the annular slide groove 11 and the slide column 12. The output end of the hydraulic cylinder 701 extends to the right and drives the toothed plate 702 to move to the right. The toothed plate 702 drives the gear 703 to rotate by the meshing of the teeth. The gear 703 drives the limiting bending wheel 704 to turn, so that the bending groove 15 on the surface of the limiting bending wheel 704 no longer limits the workpiece, which can effectively improve the output efficiency of the workpiece after bending.

[0020] The working principle of this utility model is as follows: First, the entire assembly is installed on one side of the pipe bending machine and cooperates with the feeding mechanism to perform the complete pipe bending process. Before bending, the output end of the servo motor 501 drives the screw 502 to rotate. During the rotation, the screw 502 uses the thread to drive the screw sleeve 503 to move horizontally. The screw sleeve 503 drives the adjusting bending wheel 505 to move horizontally through the connecting rod 504, thereby adjusting the distance between the adjusting bending wheel 505 and the limiting bending wheel 704. Then, the output end of the cylinder 9 extends forward, driving the limiting frame 10 to move forward, so that the groove of the limiting frame 10 is within the... The wall contacts the outer side of the workpiece, limiting the workpiece. Then, the output end of the stepper motor 2 drives the bending turntable 3 to rotate. The bending turntable 3 drives the adjusting bending wheel 505 to rotate around the limiting bending wheel 704 to bend the workpiece. After bending, the output end of the hydraulic cylinder 701 extends to the right and drives the toothed plate 702 to move to the right. The toothed plate 702 drives the gear 703 to rotate by the meshing of the teeth. The gear 703 drives the limiting bending wheel 704 to turn, so that the bending groove 15 on the surface of the limiting bending wheel 704 no longer limits the workpiece, which can effectively improve the output efficiency of the workpiece after bending.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pipe bending die for a pipe bending machine, characterized in that, include: A support frame (1) is fixedly connected to a stepper motor (2) at its bottom. The output end of the stepper motor (2) extends through to the top of the support frame (1), and the output end of the stepper motor (2) is fixedly connected to a bending turntable (3). An adjustment box (4) is fixedly connected to the back side of the top of the bending turntable (3). Adjustment assembly (5), the adjustment assembly (5) is located in the inner cavity of adjustment box (4), the adjustment assembly (5) includes screw (502), the screw (502) is movably connected to the middle end of the inner cavity of adjustment box (4) through bearing, the surface of the screw (502) is threaded with a screw sleeve (503), the top of the screw sleeve (503) is fixedly connected with a connecting rod (504), and the top of the connecting rod (504) is fixedly connected with an adjustment bending tube wheel (505); The shifting mechanism (7) includes a gear (703), which is movably connected to the top of the bending turntable (3) via a rotating shaft. A limiting bending wheel (704) is fixedly connected to the top of the gear (703). The surfaces of the adjusting bending wheel (505) and the limiting bending wheel (704) are both provided with bending grooves (15).

2. A pipe bending die for a pipe bending machine according to claim 1, characterized in that: The adjustment assembly (5) also includes a servo motor (501) for driving the screw (502) to rotate. The servo motor (501) is fixedly connected to the back side of the adjustment box (4), and the output end of the servo motor (501) is fixedly connected to the back side of the screw (502).

3. A pipe bending die for a pipe bending machine according to claim 1, characterized in that: The bottom of the inner cavity of the regulating box (4) is provided with a transverse sliding groove (13), and the bottom of the screw sleeve (503) is fixedly connected to a slider (506), and the bottom of the slider (506) is slidably connected to the inner cavity of the transverse sliding groove (13).

4. A pipe bending die for a pipe bending machine according to claim 1, characterized in that: The top of the regulating box (4) is provided with a through groove (14), and the top of the connecting rod (504) passes through the inner cavity of the through groove (14) and extends to the top of the regulating box (4).

5. A pipe bending die for a pipe bending machine according to claim 1, characterized in that: An L-shaped plate (6) is fixedly connected to the left side of the support frame (1). The shifting mechanism (7) includes a hydraulic cylinder (701). The hydraulic cylinder (701) is fixedly connected to the left side of the L-shaped plate (6). A toothed plate (702) is fixedly connected to the output end of the hydraulic cylinder (701). The toothed plate (702) and the gear (703) mesh with each other through teeth.

6. A pipe bending die for a pipe bending machine according to claim 1, characterized in that: A fixing plate (8) is fixedly connected to the back side of the top of the support frame (1), and a cylinder (9) is fixedly connected to the back side of the fixing plate (8). A limit frame (10) is fixedly connected to the output end of the cylinder (9).

7. A pipe bending die for a pipe bending machine according to claim 1, characterized in that: The left and right sides of the bottom of the bending turntable (3) are fixedly connected with sliding columns (12), and the outer side of the top of the support frame (1) is provided with an annular sliding groove (11). The bottom of the sliding column (12) is slidably connected to the inner cavity of the annular sliding groove (11).

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