A laser cutting structure for clamping a tube
By combining a base frame, side mounting frame, tube auxiliary support components, and automated clamping design, the problems of tube displacement and surface damage during the cutting process are solved, achieving high-precision and high-efficiency laser cutting results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG QIANGANG INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-23
AI Technical Summary
Existing laser cutting structures lack effective pipe fixing devices, which may cause the pipe to shift or vibrate during the cutting process, affecting cutting accuracy and easily causing scratches on the pipe surface. In addition, the operation is cumbersome and inefficient.
The design incorporates a combination of a base frame, side mounting frame, pipe auxiliary support components, pipe inlet trolley, pipe fixing mechanism, cutting mechanism, and hydraulic unloading mechanism. It includes lifting cylinder support, rolling friction, and automated clamping to ensure stable pipe delivery and positioning, and reduce surface damage.
It enables precise automated feeding of pipes, prevents sagging and vibration, ensures high-precision cutting, reduces surface friction damage, and improves operational efficiency.
Smart Images

Figure CN224390237U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a laser cutting structure for clamping and holding tubes. Background Technology
[0002] With the continuous development of modern industry and the rapid advancement of high technology, the pipe processing industry is also moving towards higher processing efficiency and higher processing precision. Therefore, laser pipe cutting machines are constantly being updated and iterated.
[0003] However, existing pipe cutting machines on the market have the following problems: First, traditional laser cutting structures may lack effective pipe fixing devices, leading to pipe displacement or vibration during the cutting process, thus affecting cutting accuracy; second, in some traditional cutting structures, direct contact between the pipe and supporting components can easily cause scratches or damage to the pipe surface, affecting the quality of the finished product; third, traditional laser cutting structures often rely on manual operation, and processes such as pipe feeding, clamping, and unloading may be cumbersome and inefficient. Therefore, traditional laser cutting structures can no longer meet the needs of the current market, and there is an urgent need to solve the aforementioned technical problems. Summary of the Invention
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a laser cutting structure for clamping and holding tubes.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] A laser cutting structure for clamping and holding tubes includes a base frame, a side mounting frame with guide rails mounted on one side of the base frame, tube auxiliary support components equidistantly mounted on the base frame, a tube infeed trolley mounted on the side mounting frame, a tube infeed chuck mounted on the tube infeed trolley, a tube fixing mechanism mounted on one end of the base frame, a cutting mechanism located at one end of the base frame and cooperating with the tube fixing mechanism, and a hydraulic feeding mechanism located in front of the cutting mechanism for supporting the tube.
[0007] Preferably, the auxiliary support assembly for the pipe body includes a first support base with a lifting cylinder that is bolted to the base frame 1, a lifting plate that is bolted to the lifting cylinder and located above the first support base, baffles that are bolted to both sides of the lifting plate, a second support base with a lifting cylinder that is bolted to the base frame 1, a U-shaped frame that is bolted to the second support base and located above the lifting cylinder, and a conveyor wheel that is mounted on the U-shaped frame by bearings.
[0008] Furthermore, a horizontal support roller is installed above the lifting pallet, and a vertical support roller is installed on the inner side of the baffles on both sides.
[0009] Preferably, the tube fixing mechanism includes a first fixing chuck and a second fixing chuck that is fixed to the first fixing chuck by screws and has the opposite installation direction. The structure of the second fixing chuck is the same as that of the first fixing chuck.
[0010] Furthermore, a rectangular through hole is provided in the center of the first fixed chuck, and four mounting slots are provided on the outer side of the first fixed chuck, which are distributed around the rectangular through hole. A roller support frame is fixedly installed on the corresponding mounting slot by bolts. A long roller is installed on the roller support frame and close to the rectangular through hole, and a short roller is installed on the roller support frame and at the same height as the long roller.
[0011] Preferably, the cutting mechanism includes a cutting frame, a horizontal guide frame with slide rails fixedly installed to the cutting frame, a traverse trolley mounted on the horizontal guide frame, a vertical telescopic arm installed in front of the traverse trolley, and a laser cutter fixedly installed on the vertical telescopic arm.
[0012] Preferably, the hydraulic unloading mechanism includes a lead screw mounting base fixedly installed with the cutting mechanism, a drive motor fixed below the lead screw mounting base and whose output end is assembled with the lead screw, a lifting frame mounted on the lead screw mounting base and assembled with the lead screw via a lead screw sleeve, hydraulic cylinders located on both sides below the lifting frame and hinged to the lifting frame, and a pipe loading and unloading plate hinged to the lifting frame on one side and hinged to the output end of the hydraulic cylinder on the other side.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The pipe feeding trolley moving along the guide rail, in conjunction with the pipe feeding chuck, achieves precise and automated pipe feeding. The equidistantly distributed pipe auxiliary support components, including the first support seat, lifting plate, baffle, second support seat, U-shaped frame, and conveyor wheel, provide continuous and stable multi-point support for long pipes, effectively preventing sagging and vibration caused by the pipe's own weight or processing force, and ensuring cutting accuracy. The first and second support seats can be adjusted in height via lifting cylinders to adapt to pipes of different diameters or to cooperate with other processes, achieving efficient and stable pipe feeding and positioning.
[0015] 2. The horizontal support rollers on the lifting pallet and the vertical support rollers inside the baffle can transform the sliding friction between the pipe and the lifting pallet and baffle into rolling friction, which significantly reduces the risk of the pipe surface being scratched during movement and support. This is especially beneficial for pipes with high surface finish requirements, and helps protect the pipe surface.
[0016] 3. The first and second fixed chucks clamp the tube from both ends, providing a strong clamping force to ensure that the tube remains absolutely stable during the cutting process and prevent the tube from swinging. This is a prerequisite for ensuring high-precision cutting. Meanwhile, the long and short rollers installed on the roller support frame at the same height form rolling support in the clamping area, which further reduces the surface friction damage caused by the tube contacting the rectangular through hole during the cutting process. Attached Figure Description
[0017] Figure 1 This is a structural diagram of a laser cutting structure for clamping a tube according to the present invention;
[0018] Figure 2 for Figure 1 Enlarged view of the local structure at point A in the middle;
[0019] Figure 3 for Figure 1 Enlarged view of the local structure at point B;
[0020] Figure 4 for Figure 1 Structural diagram of the hydraulic unloading mechanism. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.
[0022] Example
[0023] A laser-cut structure for clamping and holding tubes, such as Figure 1-4 As shown, it includes a base frame 1, a side mounting frame 2 with guide rails mounted on one side above the base frame 1, a tube auxiliary support assembly 3 equidistantly mounted on the base frame 1, a tube inlet trolley 4 mounted on the side mounting frame 2, a tube inlet clamp 5 mounted on the tube inlet trolley 4, a tube fixing mechanism 6 mounted on one end of the base frame 1, a cutting mechanism 7 located at one end of the base frame 1 and cooperating with the tube fixing mechanism 6, and a hydraulic unloading mechanism 8 located in front of the cutting mechanism 7 for supporting the tube.
[0024] The auxiliary support assembly 3 for the pipe body includes a first support base 31 with a lifting cylinder that is bolted to the base frame 1, a lifting plate 32 located above the first support base 31 and bolted to the lifting cylinder, baffles 33 bolted to both sides of the lifting plate 32, a second support base 34 with a lifting cylinder that is bolted to the base frame 1, a U-shaped frame 35 located above the second support base 34 and bolted to the lifting cylinder, and a conveyor wheel 36 mounted on the U-shaped frame 35 by bearings.
[0025] A horizontal support roller 321 is installed above the lifting pallet 32, and a vertical support roller 331 is installed on the inner side of the baffles 33 on both sides. Specifically, the cooperation of the horizontal support roller 321 and the vertical support roller 331 can prevent the pipe body from contacting the lifting pallet 32 and the baffles 33 and being scratched.
[0026] It should be further explained that the combination of the first support seat 31, lifting pallet 32, baffle 33, second support seat 34, U-shaped frame 35 and conveying wheel 36 in the pipe auxiliary support assembly provides continuous and stable multi-point support for long pipes, effectively preventing the pipes from sagging and vibrating due to their own weight or processing force, and ensuring cutting accuracy. The first support seat 31 and the second support seat 34 can be adjusted in height by lifting cylinders to adapt to pipes of different diameters or to cooperate with other processes, so as to achieve efficient and stable pipe conveying and positioning.
[0027] The tube fixing mechanism 6 includes a first fixing chuck 61 and a second fixing chuck 62 which is fixed to the first fixing chuck 61 by screws and has the opposite installation direction. The structure of the second fixing chuck 62 is the same as that of the first fixing chuck 61.
[0028] A rectangular through hole 611 is provided in the center of the first fixed chuck 61. Four mounting slots 612 are provided on the outer side of the first fixed chuck 61, which are distributed around the rectangular through hole 611. A roller support frame 613 is fixedly installed on the corresponding mounting slot 612 by bolts. A long roller 614 is installed on the roller support frame 613 and close to the rectangular through hole 611, and a short roller 615 is installed on the roller support frame 613 and at the same height as the long roller 614.
[0029] It should be further explained that the first fixed chuck 61 and the second fixed chuck 62 clamp the tube from both ends, providing a strong clamping force to ensure that the tube remains absolutely stable during the cutting process and to prevent the tube from swinging. This is a prerequisite for ensuring high-precision cutting. The long roller 614 and the short roller 615, which are installed on the roller support frame 613 and are of the same height, form a rolling support in the clamping area, which further reduces the surface friction damage caused by the tube coming into contact with the rectangular through hole 611 during the cutting process.
[0030] The cutting mechanism 7 includes a cutting frame 71, a horizontal guide frame 72 with slide rails fixedly installed to the cutting frame 71, a traverse carriage 73 mounted on the horizontal guide frame 72, a vertical telescopic arm 74 installed in front of the traverse carriage 73, and a laser cutter 75 fixedly installed on the vertical telescopic arm 74.
[0031] The hydraulic unloading mechanism 8 includes a lead screw mounting base 81 fixedly installed with the cutting mechanism 7, a drive motor 82 fixed below the lead screw mounting base 81 with its output end assembled with the lead screw, a lifting frame 83 mounted on the lead screw mounting base 81 and assembled with the lead screw via a lead screw sleeve, hydraulic cylinders 84 located on both sides below the lifting frame 83 and hinged to the lifting frame 83, and a pipe loading and unloading plate 85 hinged to the lifting frame 83 on one side and hinged to the output end of the hydraulic cylinder 84 on the other side. Specifically, the lead screw mounting base 81 is fixedly installed with the cutting frame 71 via an I-shaped casting.
[0032] It should be further explained that when the cutting mechanism 7 is cutting the pipe, the hydraulic cylinder 84 extends and lifts the pipe loading and unloading plate 85, so that the pipe loading and unloading plate 85 is laid flat and the pipe loading and unloading plate 85 is used to receive the cut pipe. After the pipe loading and unloading plate 85 receives the cut pipe, the hydraulic cylinder 84 is retracted to lower and tilt one side of the pipe loading and unloading plate 85, so that the pipe rolls off the pipe loading and unloading plate 85 to complete the unloading.
[0033] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of this utility model, shall fall within the scope of protection of this utility model.
Claims
1. A laser cutting structure for clamping a tube, characterized by, It includes a base frame, a side mounting frame with guide rails mounted on one side of the base frame, a tube auxiliary support assembly equidistantly mounted on the base frame, a tube inlet trolley mounted on the side mounting frame, a tube inlet clamp mounted on the tube inlet trolley, a tube fixing mechanism mounted on one end of the base frame, a cutting mechanism located at one end of the base frame and cooperating with the tube fixing mechanism, and a hydraulic unloading mechanism located in front of the cutting mechanism for supporting the tube.
2. The laser cutting structure of claim 1, wherein, The auxiliary support assembly for the pipe body includes a first support base with a lifting cylinder that is bolted to the base frame 1, a lifting plate that is bolted to the lifting cylinder and located above the first support base, baffles that are bolted to both sides of the lifting plate, a second support base with a lifting cylinder that is bolted to the base frame 1, a U-shaped frame that is bolted to the second support base and located above the lifting cylinder, and a conveyor wheel that is mounted on the U-shaped frame by bearings.
3. The laser cutting structure of claim 2, wherein, A horizontal support roller is installed above the lifting pallet, and a vertical support roller is installed on the inner side of the baffles on both sides.
4. The laser cutting structure of claim 1, wherein, The tube fixing mechanism includes a first fixing chuck and a second fixing chuck that is fixed to the first fixing chuck by screws and installed in the opposite direction. The structure of the second fixing chuck is the same as that of the first fixing chuck.
5. The laser cutting structure of claim 4, wherein, A rectangular through hole is provided in the center of the first fixed chuck. Four mounting slots are provided on the outer side of the first fixed chuck, which are distributed around the rectangular through hole. A roller support frame is fixedly installed on the corresponding mounting slot by bolts. A long roller is installed on the roller support frame and close to the rectangular through hole, and a short roller is installed on the roller support frame and at the same height as the long roller.
6. The laser cutting structure of claim 1, wherein, The cutting mechanism includes a cutting frame, a horizontal guide frame with slide rails fixedly installed on the cutting frame, a traverse carriage mounted on the horizontal guide frame, a vertical telescopic arm installed in front of the traverse carriage, and a laser cutter fixedly installed on the vertical telescopic arm.
7. The laser cutting structure of claim 1, wherein, The hydraulic unloading mechanism includes a lead screw mounting base fixedly installed with the cutting mechanism, a drive motor fixed below the lead screw mounting base and whose output end is assembled with the lead screw, a lifting frame mounted on the lead screw mounting base and assembled with the lead screw via a lead screw sleeve, hydraulic cylinders located on both sides below the lifting frame and hinged to the lifting frame, and a pipe loading and unloading plate hinged to the lifting frame on one side and hinged to the output end of the hydraulic cylinder on the other side.