Cutting device for pipe machining

CN224913780UActive Publication Date: 2026-10-30SUZHOU JINTA METAL PRODS
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Patent Information

Application Number
CN202521978804.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-15
Publication Date
2026-10-30
Estimated Expiration
2035-09-15

AI Technical Summary

Technical Problem

现有技术中难以保证切割过程中刀具与管道轴心的绝对垂直,导致不同管径切割时同心度不佳,切口产生椭圆或斜口,依靠巨大机械力强行切断管道,极易导致切口产生大量毛刺和翻边,整个切割过程各个环节相互独立,基本依赖人工分步操作,为此,我们提出一种管道加工用切割装置

Benefits of technology

[0016]与现有技术相比,本实用新型的有益效果是:本管道加工用切割装置,具有以下好处:

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Abstract

The utility model discloses a cutting device for pipeline processing relates to pipeline cutting technical field, including bottom plate, pipeline moving component and cutting assembly, the bottom plate upper end is installed with pipeline moving component, clamping assembly and cutting assembly, cutting assembly includes mounting bracket three, circular mounting bracket, circular limit board, gear ring no.
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Description

Technical Field

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

[0002] Pipelines are devices made up of pipes, pipe fittings, valves, etc., used to transport gases, liquids, or fluids containing solid particles. Pipelines have a wide range of uses, mainly in water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation and hydraulic engineering, and various industrial installations. Among the existing technologies, the pipe processing cutting device proposed in patent announcement number CN222873446U includes a worktable, a fixed base on the top of the worktable, a limiting plate on the right side of the fixed base, a cutting groove at the upper end of the fixed base, two fixed plates on the top of the worktable, a threaded screw rotatably connected between the two fixed plates, a support frame and a support seat fitted on the surface of the threaded screw, a hydraulic cylinder on the top of the support frame, the output end of the hydraulic cylinder being fixedly connected to the upper end of the limiting block, a telescopic cylinder at the lower end of the support seat, the output end of the telescopic cylinder being rotatably connected to a connecting rod through a connecting strip, the connecting rod being fixedly connected to a drive motor, and the output end of the drive motor being fixedly connected to a cutter head. Existing technologies cannot guarantee the absolute perpendicularity between the cutting tool and the pipe axis during the cutting process, resulting in poor concentricity when cutting different pipe diameters, and producing elliptical or oblique cuts. Relying on huge mechanical force to forcibly cut the pipe easily leads to a large number of burrs and flaking on the cut. The various stages of the entire cutting process are independent of each other and basically rely on manual step-by-step operation. To address this, we propose a cutting device for pipe processing. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a cutting device for pipe processing, which effectively reduces burrs and material deformation, improves the surface finish of the cut through laser technology, and can automatically perform high-precision fixed-distance and variable-distance cutting, thus effectively solving the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pipe processing cutting device, comprising a base plate, a pipe moving assembly, and a cutting assembly; Base plate: The upper end is equipped with pipe moving components, clamping components and cutting components; The cutting assembly includes a mounting bracket three, a circular mounting bracket, a circular limiting plate, a gear ring one, a motor one, a gear three, an arc-shaped slide groove, a cutting blade mounting seat, limiting rods, a cutting tool, and a laser cutter. The mounting bracket three is located at the upper center of the base plate. A circular mounting bracket is rotatably connected to the inner side of the upper end of the mounting bracket three. Four cutting blade mounting seats are slidably connected to the inner center of the circular mounting bracket. Cutting tools are located inside the cutting blade mounting seats. Two limiting rods are located at the front and rear ends of the outer sides of the cutting blade mounting seats. The circular mounting bracket… The front end has four radial limiting holes, and the limiting rod is slidably connected to the limiting holes. A circular limiting plate is rotatably connected to the inner side of the circular mounting bracket. A gear ring is provided at the rear end of the circular limiting plate. A motor is provided at the rear end of the circular mounting bracket. A gear is fixedly connected to the output shaft of the motor and meshes with the gear ring. Four arc-shaped sliding grooves are provided on the inner side of the circular limiting plate. A limiting rod is slidably connected to the inner side of the arc-shaped sliding grooves. Four laser cutters are provided in the middle of the inner side of the circular mounting bracket.

[0005] The circular mounting bracket of the cutting assembly is supported by a gear ring and a motor to drive the gear three to rotate. The four cutting blade mounting seats move radially synchronously within the arc-shaped groove of the circular limiting plate through the limiting rod. Together with the inner laser cutter, it forms a mechanical and laser composite cutting. Its working principle is that the motor drives the gear system to rotate the circular limiting plate. The trajectory constraint of the arc-shaped groove enables the blade to open and close precisely. The synchronous adjustment of the four blades ensures the concentricity of the cut. Laser-assisted positioning improves the cut quality. The modular design is suitable for different pipe diameters.

[0006] Furthermore, the cutting assembly also includes a gear ring two, a motor two, and a gear four. The gear ring two is provided at the outer rear end of the circular mounting bracket, and the motor two is provided at the lower middle part of the mounting bracket three. The output shaft of the motor two is fixedly connected to the gear four, and the gear four meshes with the gear ring two.

[0007] The transmission system includes a gear ring two and a gear four driven by a motor two, enabling the circular mounting bracket to rotate independently. During operation, the motor two drives the entire cutting assembly to reciprocate around the pipe through the gear pair.

[0008] Furthermore, the pipeline moving assembly includes a first mounting frame, a limiting telescopic rod, a self-locking electric telescopic rod, a second mounting frame, a dual-axis motor, and a gear. The first mounting frame is located at the rear front end of the upper end of the base plate. A self-locking electric telescopic rod is provided at the middle of the upper end of the first mounting frame. Two limiting telescopic rods are provided at the left and right ends of the first mounting frame. The front end of the second mounting frame is fixedly connected to the limiting telescopic rod and the self-locking electric telescopic rod. A dual-axis motor is provided at the lower inner end of the second mounting frame. Gear 1 is rotatably connected to the left and right ends of the second mounting frame. The output shaft of the dual-axis motor is fixedly connected to gear 1.

[0009] The pipeline moving assembly uses a combination of a self-locking electric telescopic rod and a limit telescopic rod supported by mounting frame one to drive mounting frame two, precisely controlling the length of the cutting section and the moving speed.

[0010] Furthermore, the pipeline moving assembly also includes a laser rangefinder and a laser receiver. The laser receiver is fixedly connected to the upper middle part of the second mounting bracket, and the laser rangefinder is fixedly connected to the upper middle part of the first mounting bracket.

[0011] The laser rangefinder and receiver form a closed-loop detection system that monitors the displacement of the mounting frame in real time and provides feedback to adjust the electric telescopic rod, thereby improving positioning accuracy.

[0012] Furthermore, the clamping assembly includes a threaded cylinder, a threaded rod, a limiting groove, a second gear, a clamping plate mounting base, and an arc-shaped clamping plate. The left and right ends of the second mounting base are rotatably connected to the threaded cylinder. Two limiting grooves are opened on the outer side of the threaded rod. The inner side of the second mounting base is slidably connected to the limiting grooves. The threaded cylinder is threadedly connected to the threaded rod. The rear end of the threaded rod is fixedly connected to the clamping plate mounting base. An arc-shaped clamping plate is engaged on the inner side of the clamping plate mounting base. A pressure sensor is provided on the inner side of the arc-shaped clamping plate.

[0013] The clamping assembly drives the threaded rod with limit groove to move axially through the rotation of the threaded cylinder, which in turn drives the arc-shaped clamping plate to complete the clamping. Its pressure sensor monitors the clamping force in real time, protects the pipeline from overload, and adapts to different wall thicknesses.

[0014] Furthermore, it also includes a conveying device, a mounting frame, and support wheels. The mounting frame is fixedly connected to the middle of the upper front side of the base plate, and multiple support wheels are provided on the inner side of the mounting frame. The conveying device is fixedly connected to the middle of the upper rear side of the base plate.

[0015] The multiple support wheels of the mounting frame and the conveying device form a pipeline conveying system, reducing moving friction resistance.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This pipe processing cutting device has the following advantages: 1. This pipe processing cutting device integrates physical cutting and laser positioning through the coordinated operation of four sets of radially adjustable cutters and a built-in laser cutter. The mechanical cutting part uses a gear ring to drive the circular limiting plate to rotate, and the trajectory constraint of the arc-shaped slide groove enables the limiting rod to synchronously control the precise opening and closing of the four cutters, ensuring concentricity when cutting different pipe diameters. The ring-shaped laser cutter softens the material with high temperature and guides the cutter path, effectively reducing burrs and material deformation, and improving the surface finish of the cut through laser technology.

[0017] 2. This pipe processing cutting device uses a dual-axis motor to drive gear one to rotate, which in turn rotates a threaded cylinder via gear two. This drives the threaded rod to move axially, causing the arc-shaped clamping plate to clamp the pipe. An internal pressure sensor monitors the clamping force in real time to prevent overload. After clamping, the mounting frame two of the pipe moving assembly moves precisely via a self-locking electric telescopic rod and a limit telescopic rod. A laser rangefinder and receiver provide real-time feedback of position information to control the moving distance. The introduction of the laser rangefinder and pressure sensor forms a closed-loop control system, which monitors the pipe displacement in real time and feeds it back to the electric telescopic rod. The latter dynamically adjusts the stroke of the threaded rod of the clamping assembly to prevent overload, enabling automatic high-precision fixed-distance and variable-distance cutting. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 A magnified view of the structure at point A in the middle; Figure 3 This is a partial structural schematic diagram of the pipeline moving component of this utility model; Figure 4 This is a cross-sectional view of the cutting component of this utility model; Figure 5 This is a schematic diagram of the internal structure of the cutting component of this utility model.

[0019] In the diagram: 1. Base plate; 2. Conveying device; 3. Pipeline moving assembly; 31. Mounting bracket I; 32. Limiting telescopic rod; 33. Self-locking electric telescopic rod; 34. Mounting bracket II; 35. Dual-axis motor; 36. Gear I; 37. Laser rangefinder; 38. Laser receiver; 4. Clamping assembly; 41. Threaded cylinder; 42. Threaded rod; 43. Limiting groove; 44. Gear II; 45. Clamping plate mounting seat; 46. Arc-shaped clamping plate; 5. Cutting assembly; 51. Mounting bracket III; 52. Circular mounting bracket; 53. Circular limiting plate; 54. Gear ring I; 55. Motor I; 56. Gear III; 57. Arc-shaped slide; 58. Cutting blade mounting seat; 59. Limiting rod; 510. Cutting tool; 511. Laser cutter; 512. Gear ring II; 513. Motor II; 514. Gear IV; 6. Mounting bracket; 7. Support wheel. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5This embodiment provides a technical solution: a pipe processing cutting device, including a base plate 1, a pipe moving assembly 3 and a cutting assembly 5; Base plate 1: The upper end is equipped with a pipe moving assembly 3, a clamping assembly 4, and a cutting assembly 5; The pipeline moving assembly 3 includes a mounting bracket 31, a limiting telescopic rod 32, a self-locking electric telescopic rod 33, a mounting bracket 34, a dual-axis motor 35, and a gear 36. The mounting bracket 31 is located at the rear front end of the upper end of the base plate 1. The self-locking electric telescopic rod 33 is located at the middle of the upper end of the mounting bracket 31. Two limiting telescopic rods 32 are located at the left and right ends of the mounting bracket 31. The front end of the mounting bracket 34 is fixedly connected to the limiting telescopic rod 32 and the self-locking electric telescopic rod 33. The dual-axis motor 35 is located at the lower inner end of the mounting bracket 34. The gear 36 is rotatably connected to the left and right ends of the mounting bracket 34. The output shaft of the dual-axis motor 35 is fixedly connected to the gear 36.

[0022] The pipe moving assembly 3 uses a combination of a self-locking electric telescopic rod 33 and a limiting telescopic rod 32 supported by a mounting bracket 31 to drive the mounting bracket 34, precisely controlling the length of the cutting section and the moving speed.

[0023] The pipeline moving assembly 3 also includes a laser rangefinder 37 and a laser receiver 38. The laser receiver 38 is fixedly connected to the upper middle part of the mounting bracket 2 34, and the laser rangefinder 37 is fixedly connected to the upper middle part of the mounting bracket 1 31.

[0024] The laser rangefinder 37 and receiver 38 form a closed-loop detection system, which monitors the displacement of the mounting frame 34 in real time and provides feedback to adjust the electric telescopic rod 33, thereby improving positioning accuracy.

[0025] The clamping assembly 4 includes a threaded cylinder 41, a threaded rod 42, a limiting groove 43, a gear 44, a clamping plate mounting base 45, and an arc-shaped clamping plate 46. The threaded cylinder 41 is rotatably connected to the left and right ends of the mounting bracket 34. Two limiting grooves 43 are opened on the outer side of the threaded rod 42. The inner side of the mounting bracket 34 is slidably connected to the limiting grooves 43. The threaded cylinder 41 is threadedly connected to the threaded rod 42. The rear end of the threaded rod 42 is fixedly connected to the clamping plate mounting base 45. The arc-shaped clamping plate 46 is snapped into the inner side of the clamping plate mounting base 45. A pressure sensor is provided on the inner side of the arc-shaped clamping plate 46.

[0026] The clamping assembly 4 drives the threaded rod 42 with the limiting groove 43 to move axially through the rotation of the threaded cylinder 41, thereby driving the arc-shaped clamping plate 46 to complete the clamping. Its pressure sensor monitors the clamping force in real time, protects the pipeline from overload, and adapts to different wall thicknesses.

[0027] The cutting assembly 5 includes a mounting bracket 3 51, a circular mounting bracket 52, a circular limiting plate 53, a gear ring 1 54, a motor 1 55, a gear 3 56, an arc-shaped slide 57, a cutting blade mounting seat 58, a limiting rod 59, a cutting blade 510, and a laser cutter 511. The mounting bracket 3 51 is located at the upper center of the base plate 1. A circular mounting bracket 52 is rotatably connected to the inner side of the upper end of the mounting bracket 3 51. Four cutting blade mounting seats 58 are slidably connected to the inner center of the circular mounting bracket 52. A cutting blade 510 is located inside the cutting blade mounting seat 58. Two limiting rods 59 are located at the front and rear ends of the outer side of the cutting blade mounting seat 58. The circular mounting bracket 52 has four radial limiting holes at its front end, and the limiting rod 59 is slidably connected to the limiting holes. A circular limiting plate 53 is rotatably connected to the inner side of the circular mounting bracket 52. A gear ring 54 is provided at the rear end of the circular limiting plate 53. A motor 55 is provided at the rear end of the circular mounting bracket 52. A gear 56 is fixedly connected to the output shaft of the motor 55. The gear 56 meshes with the gear ring 54. Four arc-shaped sliding grooves 57 are provided on the inner side of the circular limiting plate 53. The limiting rod 59 is slidably connected to the inner side of the arc-shaped sliding grooves 57. Four laser cutters 511 are provided in the middle of the inner side of the circular mounting bracket 52.

[0028] The circular mounting bracket 52 supported by the mounting bracket 3 51 of the cutting component 5 rotates through the gear ring 1 54 and the motor 1 55 driving the gear 3 56. The four cutting blade mounting seats 58 move radially synchronously within the arc-shaped slide groove 57 of the circular limiting plate 53 via the limiting rod 59. Together with the inner laser cutter 511, they form a mechanical and laser composite cutting. Its working principle is that the motor 1 55 drives the gear system to rotate the circular limiting plate 53. The trajectory constraint of the arc-shaped slide groove 57 enables the blade 510 to open and close precisely. The synchronous adjustment of the four blades ensures the concentricity of the cutting. Laser-assisted positioning improves the cutting quality. The modular design adapts to different pipe diameters.

[0029] The cutting assembly 5 also includes a second gear ring 512, a second motor 513, and a fourth gear 514. The second gear ring 512 is provided at the outer rear end of the circular mounting bracket 52, and the second motor 513 is provided at the lower middle part of the mounting bracket 51. The output shaft of the second motor 513 is fixedly connected to the fourth gear 514, and the fourth gear 514 meshes with the second gear ring 512.

[0030] The transmission system includes a gear ring 512 and a gear 4 514 driven by a motor 513, which enables the circular mounting bracket 52 to rotate independently. During operation, the motor 513 drives the entire cutting assembly to rotate back and forth around the pipe through the gear pair.

[0031] It also includes a conveying device 2, a mounting frame 6 and support wheels 7. The mounting frame 6 is fixedly connected to the middle of the front side of the upper end of the base plate 1. Multiple support wheels 7 are provided on the inner side of the mounting frame 6. The conveying device 2 is fixedly connected to the middle of the rear side of the upper end of the base plate 1.

[0032] The multiple support wheels 7 of the mounting frame 6 and the conveying device 2 constitute a pipeline conveying system, reducing the frictional resistance of movement.

[0033] The working principle of the pipe processing cutting device provided by this utility model is as follows: During operation, the pipe is first placed on the support wheel 7 of the front mounting frame 6 and fed into the device. The dual-axis motor 35 drives the gear 1 36 to rotate, which in turn rotates the threaded cylinder 41 through the gear 2 44, driving the threaded rod 42 to move axially, thereby driving the arc-shaped clamping plate 46 to clamp the pipe. The pressure sensor inside the plate monitors the clamping force in real time to prevent overload. After clamping is completed, the mounting frame 2 34 of the pipe moving assembly 3 moves precisely through the self-locking electric telescopic rod 33 and the limiting telescopic rod 32. The laser ranging device 37 and the receiver 38 provide real-time feedback. Position information is used to control the movement distance. The cutting component 5 is started. Motor 2 513 meshes with gear ring 2 512 through gear 4 514, driving the entire circular mounting bracket 52 to rotate back and forth around the pipe. At the same time, motor 1 55 meshes with gear ring 1 54 through gear 3 56, driving the circular limit plate 53 to rotate. The arc-shaped sliding groove 57 on its inner side pushes the four cutting blade mounting seats 58 to feed or retract radially in sync, so that the cutter 510 can adapt to different pipe diameters and maintain the concentricity of the cut. The built-in laser cutter 511 can assist in high-precision cutting. After the cutting is completed, the conveying device 2 sends out the processed pipe.

[0034] It is worth noting that in the above embodiments, the input terminals of the self-locking electric telescopic rod 33, dual-axis motor 35, laser rangefinder 37, motor one 55, laser cutter 511, and motor two 513 are electrically connected to the output terminal of an external power supply through an external PLC controller. The output terminal of the laser receiver 38 is electrically connected to the external PLC controller. Motor one 55 and motor two 513 are servo motors. The external PLC controller controls the operation of the self-locking electric telescopic rod 33, dual-axis motor 35, laser rangefinder 37, motor one 55, laser cutter 511, and motor two 513 using methods commonly used in the prior art.

[0035] 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 cutting device for pipe processing, characterized in that: Includes a base plate (1), a pipe moving assembly (3), and a cutting assembly (5); Base plate (1): The upper end is equipped with a pipe moving assembly (3), a clamping assembly (4) and a cutting assembly (5); The cutting assembly (5) includes a mounting bracket three (51), a circular mounting bracket (52), a circular limiting plate (53), a gear ring one (54), a motor one (55), a gear three (56), an arc-shaped slide groove (57), a cutting blade mounting seat (58), a limiting rod (59), a cutting tool (510), and a laser cutter (511). The mounting bracket three (51) is provided at the upper middle part of the base plate (1). The circular mounting bracket (52) is rotatably connected to the inner side of the upper end of the mounting bracket three (51). Four cutting blade mounting seats (58) are slidably connected to the inner middle part of the circular mounting bracket (52). The cutting tool (510) is provided on the inner side of the cutting blade mounting seat (58). Two limiting rods (59) are provided at the front and rear ends of the outer side of the cutting blade mounting seat (58). The circular mounting bracket (52) has four radial limiting holes at its front end. The limiting rod (59) is slidably connected to the limiting holes. The circular mounting bracket (52) is rotatably connected to a circular limiting plate (53). The rear end of the circular limiting plate (53) is provided with a gear ring (54). The rear end of the circular mounting bracket (52) is provided with a motor (55). The output shaft of the motor (55) is fixedly connected to a gear (56). The gear (56) meshes with the gear ring (54). The circular limiting plate (53) has four arc-shaped grooves (57) on its inner side. The limiting rod (59) is slidably connected to the inner side of the arc-shaped grooves (57). The circular mounting bracket (52) has four laser cutters (511) in the middle of its inner side.

2. The pipe cutting device according to claim 1, characterized in that: The cutting assembly (5) also includes a gear ring two (512), a motor two (513) and a gear four (514). The gear ring two (512) is provided at the outer rear end of the circular mounting bracket (52), and the motor two (513) is provided at the lower middle part of the mounting bracket three (51). The output shaft of the motor two (513) is fixedly connected to the gear four (514), and the gear four (514) meshes with the gear ring two (512).

3. The pipe cutting device according to claim 1, characterized in that: The pipeline moving assembly (3) includes a mounting frame one (31), a limiting telescopic rod (32), a self-locking electric telescopic rod (33), a mounting frame two (34), a dual-axis motor (35), and a gear one (36). The mounting frame one (31) is mounted on the rear side of the upper front end of the base plate (1). A self-locking electric telescopic rod (33) is provided in the middle of the upper end of the mounting frame one (31). Two limiting telescopic rods (32) are provided at the left and right ends of the mounting frame one (31). The front end of the mounting frame two (34) is fixedly connected to the limiting telescopic rod (32) and the self-locking electric telescopic rod (33). A dual-axis motor (35) is provided at the lower inner side of the mounting frame two (34). Gear one (36) is rotatably connected to the left and right ends of the mounting frame two (34). The output shaft of the dual-axis motor (35) is fixedly connected to gear one (36).

4. A pipe cutting device according to claim 3, characterized in that: The pipeline moving assembly (3) also includes a laser rangefinder (37) and a laser receiver (38). The laser receiver (38) is fixedly connected to the upper middle part of the second mounting bracket (34), and the laser rangefinder (37) is fixedly connected to the upper middle part of the first mounting bracket (31).

5. A pipe cutting device according to claim 3, characterized in that: The clamping assembly (4) includes a threaded cylinder (41), a threaded rod (42), a limiting groove (43), a gear two (44), a clamping plate mounting base (45), and an arc-shaped clamping plate (46). The left and right ends of the mounting bracket two (34) are rotatably connected to the threaded cylinder (41). Two limiting grooves (43) are opened on the outer side of the threaded rod (42). The inner side of the mounting bracket two (34) is slidably connected to the limiting grooves (43). The threaded cylinder (41) is threadedly connected to the threaded rod (42). The rear end of the threaded rod (42) is fixedly connected to the clamping plate mounting base (45). The inner side of the clamping plate mounting base (45) is clamped to the arc-shaped clamping plate (46). The inner side of the arc-shaped clamping plate (46) is provided with a pressure sensor.

6. A pipe cutting device according to claim 1, characterized in that: It also includes a conveying device (2), a mounting frame (6) and support wheels (7). The mounting frame (6) is fixedly connected to the middle of the front side of the upper end of the base plate (1). Multiple support wheels (7) are provided on the inner side of the mounting frame (6). The conveying device (2) is fixedly connected to the middle of the rear side of the upper end of the base plate (1).

Citation Information

Patent Citations

  • Cutting device for pipeline machining

    CN222873446U