Feeding mechanism for laser pipe cutting machine
Through the coordinated design of the linear module, clamping mechanism and floating support mechanism, the problems of pipe vibration and displacement in the feeding mechanism of the laser pipe cutting machine are solved, realizing precise feeding and stable support of the pipe, improving cutting quality and production efficiency, and reducing operation difficulty and safety risks.
Patent Information
- Application Number
- CN202520521107.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-21
AI Technical Summary
The existing laser tube cutting machine's feeding mechanism lacks effective support during the tube feeding process, causing the tube to vibrate or shift, and failing to provide timely avoidance space, thus affecting cutting accuracy and efficiency.
The design employs a synergistic approach of linear modules, clamping mechanisms, and floating support mechanisms. It utilizes a motor-driven gear and rack meshing mechanism to achieve precise linear movement, while a hydraulic or pneumatic chuck provides strong clamping force. The floating support mechanism controls the floating and swinging of the support rollers via a cylinder, providing stable support and clearance space for the pipe.
It improves the accuracy and stability of pipe feeding, reduces vibration and scratches, enhances cutting quality and production efficiency, reduces labor intensity and safety risks, and extends equipment life.
Smart Images

Figure CN223932862U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of laser tube cutting machine technology, specifically relating to a feeding mechanism for a laser tube cutting machine. Background Technology
[0002] With the development of industrial manufacturing technology, laser cutting technology has been widely used in the processing of metal and non-metal pipes. As an important piece of equipment for this technology, the performance of the feeding mechanism of the laser pipe cutting machine directly affects the cutting quality and production efficiency.
[0003] Traditional feeding mechanisms often fail to feed the pipe in a straight line. Instead, they rely solely on the lower module to move the pipe and its clamping mechanism. This lack of effective support during feeding can lead to pipe vibration or displacement, affecting cutting accuracy. Many existing feeding mechanisms require frequent manual adjustments to the support position, increasing operational complexity and production time, resulting in low automation and limited production efficiency. Even with a stable support system, the inability to provide timely clearance for the pipe during feeding and cutting can cause scratches or damage.
[0004] In summary, a feeding mechanism for a laser tube cutting machine is proposed to solve the above problems. By introducing a floating support mechanism and an optimized clamping mechanism design, the support and stability of the tube are improved, the automation level of the feeding mechanism is increased, manual operation is reduced, and the defects in the existing technology are resolved. Utility Model Content
[0005] The present invention aims to solve the technical problems in the prior art, such as the lack of effective support, the possibility of pipe shaking or displacement, and the inability to provide timely clearance space for pipe loading.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A feeding mechanism for a laser tube cutting machine includes:
[0008] The linear module is used to feed the pipe linearly to the laser pipe cutter;
[0009] The clamping mechanism, which is mounted on the movable box of the linear module, is used to clamp and fix the end of the pipe.
[0010] The floating support mechanism consists of several horizontal beams arranged at equal intervals and installed on the inner side of the support frame. The rollers on the floating support mechanism are driven by cylinders to float and swing. The rollers swing upward to provide support for the pipe, or swing downward to hide inside the support frame to provide clearance for the linear movement of the clamping mechanism, so that the pipe can move smoothly and continuously during the feeding process.
[0011] Preferably, the linear module also includes a movable base that slides in cooperation with guide rails on both sides of the top of the bracket, a motor, a gear fixed to the end of the motor output shaft, and a rack fixed to the top of one side of the bracket and meshing with the gear; the movable box is fixed to the top of the movable base.
[0012] The motor drives the gear to rotate, and the gear meshes with the rack, so that the moving seat moves linearly along the guide rail, thereby driving the moving box and the pipe clamped on the moving box to feed linearly.
[0013] The precise linear movement can be achieved through the cooperation of guide rails, moving seats, gears and racks, ensuring the accuracy of the pipe during the feeding process.
[0014] Preferably, the motor is fixedly mounted inside the mobile housing, with the motor's output shaft passing through the mobile housing and the mobile base, and the gear located below the mobile housing. Mounting the motor inside the mobile housing reduces the overall footprint of the equipment, making the machine more compact and easier to install and use.
[0015] Preferably, the clamping mechanism is installed on the front side of the mobile box, and the clamping mechanism is a hydraulic chuck or a pneumatic chuck.
[0016] Hydraulic or pneumatic chucks provide strong clamping force, ensuring that the pipe does not slip or shift during the cutting process, thus improving cutting accuracy.
[0017] Preferably, the floating support mechanism also includes a U-shaped support plate fixed on the crossbeam, a mounting platform fixed on the inner side of the U-shaped support plate, two side plates fixed on the mounting platform and a rotating connecting seat A rotatably connected to the fixed end of the cylinder, a swing frame rotatably connected to the two side plates, a rotating connecting seat B fixed on the swing frame and rotatably connected to the piston rod end of the cylinder, and the support roller rotates on the inner side of the swing frame.
[0018] The extension and retraction of the cylinder piston rod drives the swing frame and support roller to swing synchronously.
[0019] The rapid response characteristics of the cylinder enable the support roller to swing quickly, adapting to the feeding speed and position of the pipe, and improving the dynamic response capability of the feeding mechanism.
[0020] Preferably, the swing frame has two limiting blocks at both ends on its inner side to limit the movement of the pipe, and the support roller is located inside the limiting blocks. The limiting blocks ensure the correct position of the pipe during the feeding process.
[0021] Preferably, the inner side of the U-shaped support plate is equipped with a protective cover that shields the mounting platform, side plate, cylinder, and rotating connecting seat A. The protective cover prevents contaminants such as cutting fluid and dust from entering the floating support mechanism, protecting internal components from damage and extending the service life of the equipment.
[0022] Preferably, the U-shaped support plate has two perforated mounting ears, which are screwed onto the crossbeam using bolts that pass through them. The perforated mounting ears design allows the floating support mechanism to be quickly and easily fixed to the crossbeam.
[0023] Compared with the prior art, the technical effects and advantages of this utility model are:
[0024] This laser tube cutting machine uses a feeding mechanism that, through the coordinated operation of a linear module, a clamping mechanism, and a floating support mechanism, achieves precise feeding and stable support of the tube. The linear module utilizes a motor-driven gear and rack mechanism to move the moving seat linearly along the guide rail, smoothly feeding the tube to the cutting position. The clamping mechanism uses a hydraulic or pneumatic chuck to secure the tube end, ensuring that the tube does not shift during cutting. The floating support mechanism, through the extension and retraction of a cylinder, controls the floating and oscillating motion of the support rollers, providing necessary support for the tube and providing clearance when the clamping mechanism moves.
[0025] The laser tube cutting machine utilizes a feeding mechanism design that enhances the accuracy and stability of tube feeding. The precise coordination of the guide rails and rack and pinion system reduces vibration and wobbling, ensuring smooth tube feeding and thus improving cutting quality. The application of hydraulic or pneumatic chucks provides powerful clamping force, and the rapid-response pneumatic or hydraulic systems make clamping and releasing operations more efficient, improving production efficiency.
[0026] The automated oscillation of the floating support mechanism reduces manual adjustments by operators, lowering labor intensity. The synchronized oscillation of the support rollers maintains the stability of the pipe during feeding, preventing vibrations during high-speed movement and further ensuring cutting accuracy. Furthermore, the protective cover design reduces operational safety risks while preventing damage to internal moving parts from cutting fluid and dust, extending the equipment's service life. The quick-installation design of the floating support mechanism simplifies the installation process, reducing installation time and complexity. Robust bolt connections ensure the mechanism does not shift during high-speed movement, improving overall structural stability. In addition, the floating oscillation motion of the support rollers reduces hard contact between the pipe and the support mechanism, lowering the risk of scratches or damage and improving equipment reliability and service life. Attached Figure Description
[0027] Figure 1 This is a first-view diagram of the present invention;
[0028] Figure 2 This is a second-view diagram of the present invention;
[0029] Figure 3 This is a partial schematic diagram of the linear module of this utility model;
[0030] Figure 4 This is a first-view view of the floating support mechanism of this utility model;
[0031] Figure 5 This is a second-view view of the floating support mechanism of this utility model;
[0032] Figure 6 This is a first-view view of the floating support mechanism of this utility model after the protective cover has been removed.
[0033] Figure 7 This is a second-view view of the floating support mechanism of this utility model after the protective cover has been removed.
[0034] In the diagram: 1. Linear module; 11. Guide rail; 12. Moving seat; 15. Rack; 16. Moving box; 2. Pipe; 3. Clamping mechanism; 4. Floating support mechanism; 41. U-shaped support plate; 42. Mounting platform; 43. Side plate; 44. Rotary connecting seat A; 45. Swing frame; 46. Rotary connecting seat B; 47. Limit block; 48. Support roller; 49. Protective cover; 410. Mounting ear with hole; 411. Cylinder; 5. Bracket; 6. Crossbeam. Detailed Implementation
[0035] 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.
[0036] The following combination Figures 1 to 7 This application will be described in further detail.
[0037] This application discloses a feeding mechanism for a laser tube cutting machine, including a linear module 1, a clamping mechanism 3, and a floating support mechanism 4. The linear module 1 is used to linearly feed the tube 2 to the laser tube cutting machine; the clamping mechanism 3 is installed on the movable box 16 of the linear module 1 and is used to clamp and fix the end of the tube 2; the floating support mechanism 4 has several beams 6 arranged at equal intervals and installed on the inner side of the bracket 5.
[0038] The linear module 1 also includes a movable seat 12 that slides in cooperation with the guide rails 11 on both sides of the top of the bracket 5, a motor, a gear fixed to the end of the motor output shaft, and a rack 15 fixed to the top of one side of the bracket 5 and meshing with the gear; the movable box 16 is fixed to the top of the movable seat 12.
[0039] The motor drives the gear to rotate, and the gear meshes with the rack 15, so that the moving seat 12 moves linearly along the guide rail 11, thereby driving the moving box 16 and the pipe 2 clamped on the moving box 16 to be fed linearly.
[0040] The guide rail 11, the movable seat 12, and the gears and racks 15 work together to achieve precise linear movement, ensuring the accuracy of the pipe 2 during feeding. The guide rail 11 provides a stable track, making the movable seat 12 move more smoothly, reducing vibration and wobbling, and improving cutting quality. The motor drives the movable seat 12 through the meshing of the gears and racks 15. This drive method is highly efficient and reduces energy loss. Due to its simple structure, the guide rail 11 and gear and rack system are relatively easy to maintain, and component replacement is also convenient.
[0041] The motor is fixedly mounted inside the movable housing 16. The motor's output shaft passes through the movable housing 16 and the movable base 12, with the gear located below the movable housing 16. Mounting the motor inside the movable housing 16 reduces the overall footprint of the equipment, making the machine more compact and easier to install and use. The motor's location inside the movable housing 16 provides additional protection against external factors such as dust and cutting fluid, extending its lifespan. The motor's vibration and noise are confined within the movable housing 16, reducing external interference and improving the quality of the working environment.
[0042] The clamping mechanism 3 is installed on the front side of the movable box 16. The clamping mechanism 3 is a hydraulic chuck or a pneumatic chuck.
[0043] Hydraulic or pneumatic chucks provide strong clamping force, ensuring that the pipe 2 does not slip or shift during cutting, thus improving cutting accuracy. The hydraulic or pneumatic system reacts quickly, enabling rapid clamping and releasing operations, improving production efficiency. Hydraulic or pneumatic chucks are typically adjustable in clamping force to accommodate pipes 2 of varying hardness and diameter, increasing the machine's versatility. Automated clamping mechanisms 3 reduce operator intervention, lower labor intensity, and increase automation levels. Pressure chucks or pneumatic chucks are usually made of wear-resistant materials, maintaining performance under high loads and frequent operation, increasing equipment reliability and service life.
[0044] The floating support mechanism 4 also includes a U-shaped support plate 41 fixed on the crossbeam 6, a mounting platform 42 fixed on the inner side of the U-shaped support plate 41, two side plates 43 fixed on the mounting platform 42, a rotating connecting seat A44 rotatably connected to the fixed end of the cylinder 411, a swing frame 45 rotatably connected to the two side plates 43, a rotating connecting seat B46 fixed on the swing frame 45 and rotatably connected to the piston rod end of the cylinder 411, and a support roller 48 rotatably inside the swing frame 45.
[0045] The extension and retraction of the piston rod of cylinder 411 drives the swing frame 45 and the support roller 48 to swing synchronously.
[0046] The rapid response of cylinder 411 enables the support roller 48 to swing quickly, adapting to the feed speed and position of the pipe 2 and improving the dynamic response capability of the feeding mechanism. The synchronous swing of the support roller 48 maintains the stability of the pipe 2 during feeding, preventing vibration during high-speed movement and ensuring cutting quality. The automated swing mechanism reduces manual adjustments by operators, lowering labor intensity.
[0047] Two limiting blocks 47 are provided at both ends of the inner side of the swing frame 45 to limit the position of the pipe 2. The support roller 48 is rotatably located inside the limiting blocks 47. The limiting blocks 47 can ensure the correct position of the pipe 2 during the feeding process, prevent the pipe 2 from deviating or exceeding the predetermined range, and improve the cutting accuracy. The support roller 48 rotates while the limiting blocks 47 remain stationary, which facilitates the guiding and feeding of the pipe 2.
[0048] The inner side of the U-shaped support plate 41 is provided with a protective cover 49 that covers the mounting platform 42, side plate 43, cylinder 411, and rotating connecting seat A44. The protective cover 49 can prevent operators from contacting the internal moving parts, such as cylinder 411 and side plate 43, reducing safety risks during operation. The protective cover 49 can also prevent contaminants such as cutting fluid and dust from entering the floating support mechanism 4, protecting the internal components from damage and extending the service life of the equipment.
[0049] The U-shaped support plate 41 has two perforated mounting ears 410, which are fixed to the crossbeam 6 by bolts passing through them. The perforated mounting ears 410 allow the floating support mechanism 4 to be quickly and easily fixed to the crossbeam 6, reducing installation time and complexity. The bolted connection provides a more secure connection, ensuring that the floating support mechanism 4 will not shift during high-speed movement, thus improving the overall structural stability.
[0050] The roller 48 on the floating support mechanism 4 is pushed by the cylinder 411 to float and swing. The roller 48 swings upward to provide support for the pipe 2, or the roller 48 swings downward to hide inside the bracket 5 to provide clearance space for the linear movement of the clamping mechanism 3, so that the pipe 2 can move smoothly and continuously during the feeding process.
[0051] The linear module 1 is responsible for feeding the tube 2 along a straight line into the working area of the laser tube cutter. During this process, the linear module 1 is driven by a motor to smoothly transport the tube 2 to the cutting position according to the set speed and stroke. The clamping mechanism 3 is installed on the moving box 16 of the linear module 1. When the tube 2 is delivered to the cutting position, the clamping mechanism 3 clamps and fixes the end of the tube 2 to ensure that the tube 2 will not move during the cutting process and to maintain cutting accuracy.
[0052] Floating support mechanisms 4 are mounted on the crossbeam 6 inside the bracket 5. These support mechanisms are arranged at equal intervals, and each support mechanism has a support roller 48, which is driven by a cylinder 411 to float and swing. During the feeding of the pipe 2, as the pipe 2 passes through, the support roller 48 swings upward to provide support for the pipe 2, ensuring that the pipe 2 will not deform or shift during movement. When the clamping mechanism 3 needs to move for the next operation, the support roller 48 swings downward and hides inside the bracket 5, providing clearance for the linear movement of the clamping mechanism 3.
[0053] The support roller 48 of the floating support mechanism 4 can swing with the movement of the pipe 2, ensuring smooth and continuous movement of the pipe 2 during the feeding process, which is crucial for maintaining cutting quality. The fixing of the end of the pipe 2 by the clamping mechanism 3 and the support of the floating support mechanism 4 ensure the stability of the pipe 2 during the cutting process, thereby improving cutting accuracy. The floating swing motion of the support roller 48 avoids hard contact between the pipe 2 and the support mechanism, reducing scratches or damage that may occur to the pipe 2 during feeding and cutting. The floating swing of the support roller 48, driven by the cylinder 411, automates the feeding mechanism, reducing the need for manual operation and improving production efficiency. Because the support roller 48 can promptly move aside, providing clearance for the linear movement of the clamping mechanism 3, interference and wear between mechanical parts are reduced, improving the reliability and service life of the equipment.
[0054] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A feeding mechanism for a laser tube cutting machine, characterized in that, include: A linear module (1) is used to linearly feed the pipe (2) to the laser pipe cutter; The clamping mechanism (3) is mounted on the movable box (16) of the linear module (1) and is used to clamp and fix the end of the pipe (2); The floating support mechanism (4) is provided with several crossbeams (6) arranged at equal intervals and installed on the inner side of the bracket (5). The rollers (48) on the floating support mechanism (4) are pushed by the cylinder (411) to float and swing. The rollers (48) swing upward to provide support for the pipe (2), or the rollers (48) swing downward to hide inside the bracket (5) to provide clearance space for the linear movement of the clamping mechanism (3), so that the pipe (2) can move smoothly and continuously during the feeding process.
2. The feeding mechanism for a laser tube cutting machine according to claim 1, characterized in that: The linear module (1) also includes a movable seat (12) that slides in cooperation with the guide rails (11) on both sides of the top of the bracket (5), a motor, a gear fixed to the end of the motor output shaft, and a rack (15) fixed to the top of one side of the bracket (5) and meshing with the gear; the movable box (16) is fixed to the top of the movable seat (12); The motor drives the gear to rotate, and the gear meshes with the rack (15) so that the moving seat (12) moves linearly along the guide rail (11), thereby driving the moving box (16) and the pipe (2) clamped on the moving box (16) to be fed linearly.
3. The feeding mechanism for a laser tube cutting machine according to claim 2, characterized in that: The motor is fixedly installed inside the movable box (16), and the output shaft of the motor passes through the movable box (16) and the movable base (12). The gear is located below the movable box (16).
4. The feeding mechanism for a laser tube cutting machine according to claim 1, characterized in that: The clamping mechanism (3) is installed on the front side of the mobile box (16). The clamping mechanism (3) is a hydraulic chuck or a pneumatic chuck.
5. The feeding mechanism for a laser tube cutting machine according to claim 1, characterized in that: The floating support mechanism (4) also includes a U-shaped support plate (41) fixed on the crossbeam (6), a mounting platform (42) fixed on the inner side of the U-shaped support plate (41), two side plates (43) fixed on the mounting platform (42), a rotating connecting seat A (44) rotatably connected to the fixed end of the cylinder (411), a swing frame (45) rotatably connected to the two side plates (43), a rotating connecting seat B (46) fixed on the swing frame (45) and rotatably connected to the piston rod end of the cylinder (411), and a support roller (48) rotating on the inner side of the swing frame (45); The extension and retraction of the piston rod of the cylinder (411) drives the swing frame (45) and the support roller (48) to swing synchronously.
6. The feeding mechanism for a laser tube cutting machine according to claim 5, characterized in that: The swing frame (45) has two limiting blocks (47) at both ends of the inner side, which are used to limit the movement of the pipe (2). The support roller (48) is located inside the limiting block (47).
7. The feeding mechanism for a laser tube cutting machine according to claim 5, characterized in that: The inner side of the U-shaped support plate (41) is provided with a protective cover (49) that covers the mounting platform (42), side plate (43), cylinder (411) and rotating connecting seat A (44).
8. The feeding mechanism for a laser tube cutting machine according to claim 5, characterized in that: The U-shaped support plate (41) is provided with two perforated mounting ears (410), which are fixed to the crossbeam (6) by bolts through which they are provided.