A clamping device for cutting corrugated pipes

By using a motor-driven rotating disk and sliding column structure, combined with a ring array inner support gripper and a two-way threaded rod system, the problem of poor adaptability of corrugated pipe clamping equipment is solved, achieving stable clamping and rapid positioning of corrugated pipes with different inner diameters, thus improving cutting quality and stability.

CN224939538UActive Publication Date: 2026-11-06HUBEI XINHEBEIER NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202522499647.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-11-06
Estimated Expiration
2035-11-25

AI Technical Summary

Technical Problem

The existing corrugated pipe clamping equipment has poor adaptability of its internal support clamping structure, making it difficult to flexibly adjust according to the inner diameter specifications of the corrugated pipe, which easily leads to deviation or pipe wall deformation during cutting.

Method used

The system employs a motor-driven rotating disk and sliding column structure, combined with a ring array of internal support claws and a bidirectional threaded rod system, to achieve uniform clamping of the inner wall of the corrugated pipe and rapid positioning of the outer wall, adapting to corrugated pipes with different inner diameter specifications.

Benefits of technology

This achieves stable clamping of the bellows, avoiding axial movement and radial deformation during the cutting process, thus improving cutting quality and stability.

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Abstract

This application relates to the technical field of corrugated pipe cutting, and in particular to a clamping device for corrugated pipe cutting, including a base plate, a connecting plate fixedly connected to the back of the base plate, a sliding groove on the top of the base plate, an assembly groove on the side of the top of the base plate near the sliding groove, a fixing plate fixedly connected to the top of the base plate, a slot on the front of the fixing plate, a motor fixedly connected to the back of the connecting plate, and a rotating column fixedly connected to the front output end of the motor via a coupling. This invention, by including a motor, a rotating disk, a sliding column, and other components, allows the motor to drive the rotating disk to rotate, and the sliding column to slide along the arc-shaped sliding groove, causing the inner support claws to open or close synchronously, achieving uniform clamping of the inner wall of the corrugated pipe. The annular array of inner support claws can adapt to corrugated pipes of different inner diameters, and the clamping force is evenly distributed, effectively preventing axial movement or radial deformation of the corrugated pipe during the cutting process.
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Description

Technical Field

[0001] This application relates to the technical field of corrugated pipe cutting, and in particular to a clamping device for corrugated pipe cutting. Background Technology

[0002] Corrugated pipe cutting refers to the process of separating or trimming corrugated pipes according to preset dimensions, shapes, or process requirements using specific tools or equipment. Its core purpose is to cut corrugated pipe raw materials or semi-finished products into lengths or segments that meet actual application needs, or to provide precise port shapes for subsequent connection, installation, and other processes.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following defects: In the prior art, the internal support clamping structure of some corrugated pipe clamping equipment has poor adaptability and is difficult to adjust flexibly according to the inner diameter specifications of the corrugated pipe. It is easy for the clamping to be too loose, causing deviation during cutting, or for the clamping to be too tight, causing deformation of the corrugated pipe wall, thus affecting the cutting quality. Utility Model Content

[0004] In order to enable the device to be adapted to corrugated pipes with different inner diameters, this application provides a clamping device for corrugated pipe cutting.

[0005] The present application provides a clamping device for cutting corrugated pipes, which adopts the following technical solution: it includes a base plate, a connecting plate fixedly connected to the back of the base plate, a sliding groove opened on the top of the base plate, an assembly groove opened on the side of the top of the base plate near the sliding groove, a fixing plate fixedly connected to the top of the base plate, and a slot opened on the front of the fixing plate. A motor is fixedly connected to the back of the connecting plate. A rotating column is fixedly connected to the output end of the motor via a coupling. A rotating disk is fixedly connected to the front of the rotating column. An arc-shaped sliding groove is provided on the front of the rotating disk. A sliding column is slidably connected to the inner wall of the arc-shaped sliding groove. A connecting block is fixedly connected to the front of the sliding column. An inner support claw is provided on the front of the connecting block.

[0006] Optionally, a limiting frame is fixedly connected to the back of the fixing plate. The inner wall of the limiting frame is slidably connected to the outer wall of the connecting block. A sliding groove is provided on the front of the limiting frame, and a moving rod is slidably connected to the inner wall of the sliding groove.

[0007] Optionally, the outer wall of the movable rod contacts the inner wall of the slot, the back of the movable rod is fixedly connected to the front of the connecting block, the top of the movable rod is fixedly connected to the bottom of the inner support claw, a fixed column is fixedly connected to the front of the fixed plate, and a limit frame two is fixedly connected to the front of the fixed column.

[0008] Optionally, the inner wall of the limiting frame is slidably connected to the left side of the outer wall of the moving rod, the number of inner support claws is several, the number of inner support claws is arranged in a ring array, the number of arc-shaped sliding grooves is several, the number of arc-shaped sliding grooves is arranged in a ring array, and the number of sliding columns is several.

[0009] Optionally, a second motor is fixedly connected to the inner wall of the assembly slot, and a bidirectional threaded rod is fixedly connected to the left output end of the second motor via a coupling. A moving block is threadedly connected to the outer wall of the bidirectional threaded rod, and a moving frame is fixedly connected to the top of the moving block.

[0010] Optionally, the movable frame has a rotating groove on its left side, and a rotating wheel is rotatably connected to the inner wall of the rotating groove via a pin. A limit ring is fixedly connected to the outer wall of the rotating wheel, and the number of rotating wheels is several.

[0011] Optionally, the rotating wheels are arranged symmetrically, the number of moving blocks is two, the two moving blocks are arranged symmetrically, the number of moving frames is two, and the two moving frames are arranged symmetrically with the fixed column as the center.

[0012] In summary, this application includes the following beneficial technical effects: 1. This utility model is equipped with components such as a motor, a rotating disk, and a sliding column. The motor drives the rotating disk to rotate, and the sliding column slides along the arc-shaped groove, causing the inner support claws to open or close synchronously, thereby achieving uniform clamping of the inner wall of the corrugated pipe. The inner support claws arranged in a ring array can adapt to corrugated pipes with different inner diameter specifications, and the clamping force is evenly distributed, which can effectively prevent the corrugated pipe from axial movement or radial deformation during the cutting process.

[0013] 2. This utility model is equipped with a second motor, a bidirectional threaded rod, and a moving block. When the second motor is started, the bidirectional threaded rod rotates, which drives the symmetrically arranged moving block and moving frame to move closer or further away in sync. This allows the rotating wheel to contact the outer wall of the bellows, and the limiting ring to match the recessed part of the bellows, so that the bellows axis can be quickly corrected and the outer wall can be quickly positioned. At the same time, it can further improve the processing stability by cooperating with the inner support claw. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the rotating disk in an embodiment of this application; Figure 3 This is a schematic diagram of the internal support gripper structure in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the moving block in an embodiment of this application.

[0015] Reference numerals: 1. Base plate; 11. Connecting plate; 12. Sliding groove; 13. Assembly groove; 14. Fixing plate; 2. Motor 1; 21. Rotating column; 211. Rotating disk; 212. Arc-shaped sliding groove; 22. Sliding column; 221. Connecting block; 222. Moving rod; 23. Limiting frame 1; 24. Inner support gripper; 25. Fixing column; 251. Limiting frame 2; 3. Motor 2; 31. Bidirectional threaded rod; 311. Moving block; 32. Moving frame; 33. Rotating wheel; 331. Limiting ring. Detailed Implementation

[0016] The following is in conjunction with the appendix Figures 1-4 This application will be further described in detail below. The technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0017] This application discloses a clamping device for cutting corrugated pipes. For example... Figure 1 , Figure 2 , Figure 3 As shown, it includes a base plate 1, a connecting plate 11 fixedly connected to the back of the base plate 1, a sliding groove 12 opened on the top of the base plate 1, an assembly groove 13 opened on the side of the top of the base plate 1 near the sliding groove 12, a fixing plate 14 fixedly connected to the top of the base plate 1, and a slot opened on the front of the fixing plate 14.

[0018] In this embodiment, a motor 2 is fixedly connected to the back of the connecting plate 11. A rotating column 21 is fixedly connected to the output end of the motor 2 via a coupling. A rotating disk 211 is fixedly connected to the front of the rotating column 21. An arc-shaped sliding groove 212 is provided on the front of the rotating disk 211. A sliding column 22 is slidably connected to the inner wall of the arc-shaped sliding groove 212. A connecting block 221 is fixedly connected to the front of the sliding column 22. An inner support claw 24 is provided on the front of the connecting block 221. The top of the inner support claw 24 is made of rubber material, which can increase friction while protecting the bellows.

[0019] Please see Figure 4 As shown, a motor 2 3 is fixedly connected to the inner wall of the assembly slot 13. A bidirectional threaded rod 31 is fixedly connected to the left output end of the motor 2 3 via a coupling. A moving block 311 is threadedly connected to the outer wall of the bidirectional threaded rod 31. A moving frame 32 is fixedly connected to the top of the moving block 311.

[0020] Please see Figure 3As shown, a limiting frame 23 is fixedly connected to the back of the fixed plate 14. The inner wall of the limiting frame 23 is slidably connected to the outer wall of the connecting block 221. The setting of the limiting frame 23 can restrict the movement of the connecting block 221 inside it. A sliding groove is provided on the front of the limiting frame 23, and a moving rod 222 is slidably connected to the inner wall of the sliding groove.

[0021] Please see Figure 4 As shown, a rotating groove is provided on the left side of the movable frame 32. A rotating wheel 33 is rotatably connected to the inner wall of the rotating groove via a pin. A limiting ring 331 is fixedly connected to the outer wall of the rotating wheel 33. The limiting ring 331 fixed to the outer wall of the rotating wheel 33 can be adapted to the recessed position of the corrugated pipe, which facilitates quick positioning and restriction. There are several rotating wheels 33.

[0022] Please see Figure 3 As shown, the outer wall of the moving rod 222 is in contact with the inner wall of the slot, the back of the moving rod 222 is fixedly connected to the front of the connecting block 221, the top of the moving rod 222 is fixedly connected to the bottom of the inner support claw 24, the front of the fixed plate 14 is fixedly connected to the fixed column 25, and the front of the fixed column 25 is fixedly connected to the limit frame 251. The setting of the limit frame 251 can restrict the movement of the moving rod 222 inside.

[0023] Please see Figure 4 As shown, several rotating wheels 33 are symmetrically arranged. The arrangement of several rotating wheels 33 can facilitate the rotation of the corrugated pipe after cutting, making it convenient to select the cutting position of the corrugated pipe. At the same time, it will not cause damage to the corrugated pipe due to friction with its outer wall when rotating after several inner support claws 24 are retracted. There are two moving blocks 311, which are symmetrically arranged. There are two moving frames 32, which are symmetrically arranged with the fixed column 25 as the center.

[0024] Please see Figure 3 As shown, the inner wall of the limiting frame 251 is slidably connected to the left side of the outer wall of the moving rod 222. There are several inner support claws 24 arranged in a ring array. There are several arc-shaped slide grooves 212 arranged in a ring array. There are several sliding columns 22.

[0025] The implementation principle of a clamping device for corrugated pipe cutting in this application embodiment is as follows: After the motor 2 starts, it drives the rotating column 21 and the rotating disk 211 to rotate through the coupling. The arc-shaped sliding groove 212 on the rotating disk 211 forces the sliding column 22 to slide along the groove trajectory. The sliding column 22 drives the moving rod 222 to move synchronously along the guide direction of the first limiting frame 23 and the second limiting frame 251 through the connecting block 221. Finally, the inner support claws 24 of the annular array open outward or retract inward, thereby achieving stable clamping of the inner wall of the corrugated pipe. When the second step is started, the bidirectional threaded rod 31 is driven to rotate via the coupling. The two moving blocks 311 on the outer wall of the bidirectional threaded rod 31 move towards or away from each other along the sliding groove 12, driving the moving frame 32 to move synchronously. The rotating wheel 33 on the moving frame 32 moves closer to the bellows as the moving frame 32 moves. The bellows is limited by the symmetrically arranged rotating wheel 33. The limiting ring 331 fixed on the outer wall of the rotating wheel 33 can be adapted to the recessed position of the bellows, which facilitates quick positioning and limits the bellows, realizing quick positioning and auxiliary support of the outer wall.

[0026] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clamping device for cutting a bellows, comprising a base plate (1), characterised in that: A connecting plate (11) is fixedly connected to the back of the base plate (1), a sliding groove (12) is provided on the top of the base plate (1), an assembly groove (13) is provided on the side of the top of the base plate (1) near the sliding groove (12), a fixing plate (14) is fixedly connected to the top of the base plate (1), and a slot is provided on the front of the fixing plate (14). The back of the connecting plate (11) is fixedly connected to a motor (2). The output end of the motor (2) is fixedly connected to a rotating column (21) via a coupling. The front of the rotating column (21) is fixedly connected to a rotating disk (211). The front of the rotating disk (211) is provided with an arc-shaped sliding groove (212). The inner wall of the arc-shaped sliding groove (212) is slidably connected to a sliding column (22). The front of the sliding column (22) is fixedly connected to a connecting block (221). The front of the connecting block (221) is provided with an inner support claw (24).

2. A clamping apparatus for cutting a bellows according to claim 1, characterized in that: The back of the fixed plate (14) is fixedly connected to the limiting frame (23), the inner wall of the limiting frame (23) is slidably connected to the outer wall of the connecting block (221), the front of the limiting frame (23) is provided with a sliding groove, and the inner wall of the sliding groove is slidably connected to a moving rod (222).

3. A clamping device for cutting a bellows according to claim 2, characterized in that: The outer wall of the moving rod (222) is in contact with the inner wall of the slot. The back of the moving rod (222) is fixedly connected to the front of the connecting block (221). The top of the moving rod (222) is fixedly connected to the bottom of the inner support claw (24). The front of the fixed plate (14) is fixedly connected to a fixed column (25). The front of the fixed column (25) is fixedly connected to a limit frame two (251).

4. A clamping device for cutting a bellows according to claim 3, characterized in that: The inner wall of the limiting frame 2 (251) is slidably connected to the left side of the outer wall of the moving rod (222). The number of the inner support claws (24) is several, and the several inner support claws (24) are arranged in a ring array. The number of the arc-shaped slide grooves (212) is several, and the several arc-shaped slide grooves (212) are arranged in a ring array. The number of the sliding columns (22) is several.

5. A clamping apparatus for cutting a bellows as defined in claim 1, characterized in that: The inner wall of the assembly slot (13) is fixedly connected to a motor (3), and the left output end of the motor (3) is fixedly connected to a bidirectional threaded rod (31) via a coupling. The outer wall of the bidirectional threaded rod (31) is threadedly connected to a moving block (311), and the top of the moving block (311) is fixedly connected to a moving frame (32).

6. A clamping device for cutting a bellows according to claim 5, characterized in that: The movable frame (32) has a rotating groove on its left side. The inner wall of the rotating groove is rotatably connected to a rotating wheel (33) via a pin. The outer wall of the rotating wheel (33) is fixedly connected to a limit ring (331). There are several rotating wheels (33).

7. A clamping device for cutting a bellows according to claim 6, characterized in that: The rotating wheels (33) are arranged symmetrically, the number of moving blocks (311) is two, the two moving blocks (311) are arranged symmetrically, the number of moving frames (32) is two, and the two moving frames (32) are arranged symmetrically with the fixed column (25) as the center.