A laser pipe cutting machine with progressive draw tube mechanism
By introducing a progressive tube-pulling mechanism and a front clamping plate into the laser tube cutting machine, the problem of interruption in single-claw feeding is solved, enabling continuous tube feeding and automated control, thus improving processing efficiency and automation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏领翰智能激光科技有限公司
- Filing Date
- 2025-09-04
- Publication Date
- 2026-08-04
AI Technical Summary
The existing laser tube cutting machine uses a single gripper for feeding, which leads to frequent interruptions during the feeding process, reducing processing efficiency. Furthermore, without a fully automatic feeding device, manual feeding is required, resulting in tube positioning deviations and high labor intensity.
The progressive tube-pulling mechanism is adopted, which alternately clamps and feeds the material through the first and second gripper assemblies, and achieves continuous feeding by combining the positive and negative lead screw assemblies. A front clamping plate is added to the feeding side to increase the clamping distance, and automatic control is achieved in conjunction with the sensor.
It enables continuous feeding of pipes, improves processing efficiency, reduces manual labor intensity, avoids pipe positioning deviations and discontinuity in manual operation, and enhances the degree of automation.
Smart Images
Figure CN224587243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser cutting technology, specifically a laser tube cutting machine with a progressive tube pulling mechanism. Background Technology
[0002] Laser tube cutting machines are the primary equipment for cutting pipes. Laser cutting uses an invisible laser instead of a traditional mechanical blade, offering advantages such as fast cutting speed, high precision, and no limitation on cutting patterns. Whether it's square, round, or irregularly shaped pipes, they can be effectively cut. They have a significant advantage over other equipment in pipe cutting, and their professional and stable cutting results have led to their rapid adoption across various metal processing industries, particularly in automotive manufacturing, oil extraction, and machinery manufacturing.
[0003] However, in practical applications, existing laser tube cutting machines mostly use a single gripper for feeding. During the feeding process, the gripper needs to frequently "grip-feed-release-reset," causing interruptions in the feeding action and making continuous feeding impossible. This not only reduces the overall processing efficiency but also easily leads to tube positioning deviations due to feeding interruptions. For laser tube cutting machines that are not equipped with a fully automatic feeding device, manual feeding and assistance in pushing the tube are required during the feeding stage, which reduces processing efficiency. Utility Model Content
[0004] The purpose of this invention is to solve the problems existing in the laser tube cutting machine in the background art mentioned above, and to provide a laser tube cutting machine with a progressive tube pulling mechanism.
[0005] This utility model achieves the above-mentioned objective through the following technical solution: A laser tube cutting machine with a progressive tube pulling mechanism includes a frame assembly, which consists of a main platform and a boss frame. A chuck is mounted on the main platform, and a movable cutting component is provided on the top of the boss frame. A tube pulling mechanism is provided on the feeding side of the chuck. The tube pulling mechanism includes a positive and negative screw assembly mounted on the side of the boss frame and a first gripper assembly and a second gripper assembly slidably mounted on the positive and negative screw assembly. The tube pulling mechanism pulls the tube into the chuck through the progressive and continuous feeding of the two movable gripper assemblies. A receiving mechanism is provided on the discharge side of the chuck. The receiving mechanism is slidably disposed with the top of the boss frame. The receiving mechanism clamps and guides the tube in the chuck and completes unloading after the tube is cut.
[0006] Furthermore, the top surface of the boss frame is provided with a sliding guide rail, and the moving cutting assembly includes a moving component that is slidably disposed with the sliding guide rail and a laser cutting head mounted on the moving component. The moving component drives the laser cutting head to perform three-dimensional moving cutting on the pipe.
[0007] Furthermore, the first gripper assembly and the second gripper assembly have the same structure; the positive and negative lead screw assembly includes a first slide rail mounted on the side of the boss frame and a lead screw motor mounted on one end of the boss frame, as well as a positive and negative lead screw connected to the output end of the lead screw motor.
[0008] Furthermore, the first gripper assembly includes a movable plate. One end of the movable plate is connected to a sliding seat that is slidably connected to the first slide rail and a connecting block that is threadedly connected to the positive and negative lead screws. A second slide rail is fixedly provided on the side of the movable plate. Two first clamping plates are slidably connected on the second slide rail. A rack plate is connected to the bottom of each of the two first clamping plates. Gears that mesh with the racks on the two rack plates are rotatably mounted on the movable plate. A first cylinder is installed on the side of the movable plate below the gears. The telescopic rod of the first cylinder is connected to one of the first clamping plates.
[0009] Furthermore, a front clamping plate is connected to the feed side plate of each of the two first clamping plates in the first gripper assembly. The front clamping plate is used to increase the clamping distance and clamp the feed side pipe in advance. A first sensor for sensing the feed pipe is installed on the plate between the front clamping plate and the first clamping plate.
[0010] Furthermore, the receiving mechanism includes a right-angle plate, the bottom of which is slidably connected to the sliding guide rail via a sliding seat. Bearings with seats are fixedly installed on both sides of the vertical plate at one end of the right-angle plate. A rotating rod is rotatably installed between the two bearings with seats. A support frame is connected to the rotating rod, and an arc-shaped tray is provided on the support frame. A curved block is fixedly installed at the middle position of the rotating rod. A second cylinder is hinged at the outer corner of the right-angle plate, and one end of the telescopic rod of the second cylinder is hinged to the curved block. A third gripper assembly is connected to the side of the right-angle plate. The third gripper assembly includes an arched mounting plate disposed on one side of the support frame and connected to the right-angle plate. Oppositely arranged clamping cylinders are installed on both sides of the mounting plate. A second sensor for sensing the pipe is installed at the middle position of the side of the mounting plate. A third cylinder is installed on the back of the boss frame, and one end of the telescopic rod of the third cylinder is hinged to the right-angle plate.
[0011] Furthermore, a third sensor is installed on the side of the boss bracket on one side of the chuck. The third sensor is used to sense the position of the pipe moving from the chuck toward the discharge side, so as to send a movement command to the receiving mechanism.
[0012] Furthermore, a variable diameter wheel is mounted on one end of the main unit on the feeding side via a mounting bracket.
[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The tube drawing mechanism adopts a progressive operation of the first gripper assembly and the second gripper assembly. The two grippers are driven by the positive and negative screw assemblies to alternately clamp, feed and reset, which solves the interruption problem of the traditional single gripper "feed-reset" and realizes continuous feeding of tubes, improving feeding efficiency. It is especially suitable for long tubes or batch processing scenarios.
[0014] 2. A front clamping plate is added to the feeding side of the first clamping plate, which can increase the clamping distance, cover a longer section of pipe feeding, and reduce the labor intensity of manual support; the front clamping plate and the first clamping plate work together to clamp the pipe on the preset feeding path and limit the lateral and longitudinal displacement of the pipe; the front clamping plate works with the first sensor to sense and clamp the pipe in advance, so that even if there is a slight delay in manual feeding, the pipe can be prevented from slipping or shifting, ensuring that the feeding action is not interrupted.
[0015] 3. The receiving mechanism drives the support frame to rotate and unload materials through the second cylinder, eliminating the need for manual handling. This not only reduces the labor intensity of operators but also avoids the impact and scratches on the pipes during manual unloading. At the same time, the unloading action is linked with the cutting and feeding processes, requiring no manual intervention and greatly improving the degree of automation. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a diagram showing the position of the third sensor in this utility model; Figure 3 This is a schematic diagram of the back of the main unit and the boss frame in this utility model; Figure 4 This is a schematic diagram of the tube-drawing assembly in this utility model; Figure 5 This is a schematic diagram of the second gripper assembly in this utility model; Figure 6 This is a schematic diagram of the first gripper assembly with a front clamping plate installed in this utility model; Figure 7 This is a schematic diagram of the material receiving mechanism in this utility model; Figure 8 This is a schematic diagram of the material receiving mechanism in this utility model.
[0017] In the diagram: 1-Main unit, 2-Boss frame, 3-Chuck, 4-Moving cutting assembly, 5-Pipe pulling mechanism, 6-Material receiving mechanism, 7-Sliding guide rail, 8-Third sensor, 9-Variable diameter wheel; 41-Moving assembly, 42-Laser cutting head, 51-Positive and negative lead screw assembly, 52-First gripper assembly, 53-Second gripper assembly, 54-Front clamping plate, 55-First sensor, 511-First slide rail, 512-Lead screw motor, 513-Positive and negative lead screw, 521-Moving plate, 522-Second slide rail, 523-First clamping plate, 524-Rack plate, 525-Gear, 526-First cylinder; 61-Right-angle plate, 62-Third gripper assembly, 63-Third cylinder, 611-Bearing with seat, 612-Rotating rod, 613-Support bracket, 614-Pattern, 615-Curved block, 616-Second cylinder, 621-Mounting plate, 622-Clamping cylinder, 623-Second sensor. Detailed Implementation
[0018] 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.
[0019] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0020] Combination Figures 1 to 8 The laser tube cutting machine shown includes a frame assembly, which consists of a main platform 1 and a boss frame 2. A chuck 3 is mounted on the main platform 1. A movable cutting assembly 4 is provided on the top of the boss frame 2. A tube pulling mechanism 5 is provided on the feeding side of the chuck 3. The tube pulling mechanism 5 includes a positive and negative screw assembly 51 mounted on the side of the boss frame 2 and a first gripper assembly 52 and a second gripper assembly 53 slidably mounted on the positive and negative screw assembly 51. The tube pulling mechanism 5 pulls the tube into the chuck 3 through the two movable gripper assemblies in a progressive and continuous feeding manner. A receiving mechanism 6 is provided on the discharge side of the chuck 3. The receiving mechanism 6 is slidably disposed with the top of the boss frame 2. The receiving mechanism 6 clamps and guides the tube in the chuck 3 and completes the unloading after the tube is cut. like Figure 1-6As shown, the first gripper assembly 52 and the second gripper assembly 53 have the same structure; the positive and negative lead screw assembly 51 includes a first slide rail 511 mounted on the side of the boss frame 2 and a lead screw motor 512 mounted on one end of the boss frame 2, as well as a positive and negative lead screw 513 connected to the output end of the lead screw motor 512; the first gripper assembly 52 includes a moving plate 521, one end of which is connected to a sliding seat that is slidably connected to the first slide rail 511 and a connecting block that is threadedly connected to the positive and negative lead screw 513; both the first gripper assembly 52 and the second gripper assembly 53 move on the first slide rail 511 as the positive and negative lead screw 513 rotates through the sliding seat and the connecting block; like Figure 5 As shown, a second slide rail 522 is fixedly provided on the side of the movable plate 521. Two first clamping plates 523 are slidably connected on the second slide rail 522. A rack plate 524 is connected to the bottom of each of the two first clamping plates 523. Gears 525 that mesh with the racks on the two rack plates 524 are rotatably mounted on the movable plate 521. A first cylinder 526 is installed on the side of the movable plate 521 below the gear 525. The telescopic rod of the first cylinder 526 is connected to one of the first clamping plates 523. In addition, a variable diameter wheel 9 is installed on one end of the main unit 1 on the feeding side through a mounting bracket. like Figure 6 As shown, the feed side plates of the two first clamping plates 523 in the first gripper assembly 52 are each connected to a front clamping plate 54. The front clamping plate 54 is used to increase the clamping distance and clamp the feed side pipe in advance. A first sensor 55 for sensing the feed pipe is installed on the plate between the front clamping plate 54 and the first clamping plate 523.
[0021] When in use, the pipe to be processed is fed in from the feeding side and first passes through the variable diameter wheel 9 on the feeding end mounting frame of the main unit 1. The variable diameter wheel 9 can be adaptively adjusted according to the diameter of the pipe, which plays a guiding and preliminary positioning role for the pipe and prevents the pipe from deviating during feeding. The pipe continues to be fed to the pipe pulling mechanism 5. After the first sensor 55 detects the pipe, it sends a signal to the first cylinder 526. The telescopic rod of the first cylinder 526 extends and retracts, causing a first clamping plate 523 connected to it to slide along the second slide rail 522. The rack plate 524 at the bottom of the first clamping plate 523 drives the gear 525 meshing with it to rotate. The gear 525 then drives another rack plate and the corresponding first clamping plate 523 to slide in the opposite direction. Finally, the two first clamping plates 523 and the top front clamping plate 54 clamp the pipe synchronously. The front clamping plate 54 can increase the clamping distance to ensure stable clamping of the pipe. After the pipe is clamped, the screw motor 512 starts, driving the forward and reverse screws 513 to rotate. Since the connecting blocks of the first gripper assembly 52 and the second gripper assembly 53 respectively cooperate with the forward and reverse threaded sections of the forward and reverse screws, and both are slidably connected to the first slide rail 511 through the sliding seat, the first gripper assembly 52 first moves along the first slide rail 511 towards the chuck 3, pushing the pipe into the chuck 3, while the second gripper assembly 53 moves towards the first gripper assembly 52. When the first gripper assembly 52 moves to the limit position, it releases the pipe, and at the same time the second gripper assembly 53 clamps the pipe. Then the screw motor 512 reverses and drives the forward and reverse screws 513 to rotate in the opposite direction. Thus, the second gripper assembly 53 drives the pipe to continue moving towards the chuck 3 for feeding. The first gripper assembly 52 returns to the feeding side and clamps the pipe again. This cycle is repeated to achieve "progressive continuous feeding" until the pipe is completely fed into the chuck 3.
[0022] like Figure 7-8 As shown, the receiving mechanism 6 includes a right-angle plate 61. The bottom of the right-angle plate 61 is slidably connected to the sliding guide rail 7 via a sliding seat. Bearings 611 with seats are fixedly installed on both sides of the vertical plate at one end of the right-angle plate 61. A rotating rod 612 is rotatably installed between the two bearings 611. A support frame 613 is connected to the rotating rod 612, and an arc-shaped tray 614 is provided on the support frame 613. A curved block 615 is fixedly installed at the middle position of the rotating rod 612. A second cylinder 616 is hinged to the outer corner of the right-angle plate 61. One end of the telescopic rod of 616 is hinged to the curved block 615; a third gripper assembly 62 is connected to the side of the right angle plate 61. The third gripper assembly 62 includes an arch-shaped mounting plate 621 that is set on one side of the support frame 613 and connected to the right angle plate 61. A clamping cylinder 622 is installed on both sides of the mounting plate 621 and is installed at the middle position of the side of the mounting plate 621. A second sensor 623 for sensing the pipe is installed at the middle position of the side of the mounting plate 621. A third cylinder 63 is installed on the back of the boss frame 2. One end of the telescopic rod of the third cylinder 63 is hinged to the right angle plate 61. A third sensor 8 is installed on the side of the boss frame 2 on one side of the chuck 3. When the pipe gradually extends out of the chuck 3 through the pipe pulling mechanism 5, the third sensor 8 installed on the side of the boss frame 2 senses the extension position of the pipe and sends a movement command to the third cylinder 63. The telescopic rod of the third cylinder 63 extends and retracts, causing the right-angle plate 61 of the receiving mechanism 6 to slide along the sliding guide rail 7 at the top of the boss frame 2, so that the receiving mechanism 6 moves to the position corresponding to the pipe discharge end. During the movement, when the second sensor 623 installed on the side of the mounting plate 621 senses the pipe, it sends a signal to the clamping cylinder. 622, the two clamping cylinders move synchronously, driving the third clamping jaw assembly 62 to clamp the pipe; then the telescopic rod of the third cylinder 63 extends, and the receiving mechanism 6 pulls the pipe to the opposite side of the chuck 3. After pulling a certain distance (e.g., the cutting length of the pipe), the clamping plate of the chuck 3 holds the pipe. The first clamping jaw assembly 52 and the second clamping jaw assembly 53 can also support the other end of the pipe. Then the two clamping cylinders 622 release the pipe, and the third cylinder 63 drives the receiving mechanism to move to the side of the chuck 3, so that the tray 614 on the receiving mechanism 6 can support the pipe after the pipe is cut. like Figure 1-3 As shown, the top surface of the boss 2 is provided with a sliding guide rail 7. The moving cutting component 4 is the prior art, which includes a moving component 41 that is slidably disposed with the sliding guide rail 7 and a laser cutting head 42 mounted on the moving component 41. The moving component 41 drives the laser cutting head 42 to perform three-dimensional moving cutting on the pipe. After the chuck 3 stabilizes the pipe, the moving cutting assembly 4 is activated. The moving assembly 41 slides along the sliding guide rail 7, adjusting the lateral position of the laser cutting head 42. Simultaneously, the moving assembly 41 can drive the laser cutting head 42 to move longitudinally and vertically. Thus, as the chuck motor on the chuck 3 drives the chuck jaws to rotate the pipe, the laser cutting head 42 cuts the pipe. The moving assembly 41 can move the laser cutting head 42 to either side of the chuck 3 (the infeed side and the discharge side) to cut the pipe. If on the discharge side ( Figure 1 The pipe is cut on the right side of the chuck 3. After the cutting is completed, the pipe falls into the tray 614 on the support frame 613. When the unloading signal is triggered, the second cylinder 616 is started and its telescopic rod extends to drive the curved block 615 hinged to it to rotate. The curved block 615 is fixedly connected to the rotating rod 612. The rotating rod 612 rotates through the seated bearing 611. Therefore, the curved block 615 drives the rotating rod 612 and the support frame 613 to rotate synchronously. After the support frame 613 tilts, the pipe on the tray 614 slides down the tilt direction to the preset collection area, completing the automatic unloading. If on the feed side ( Figure 1The pipe is cut on the left side of the chuck 3. After the cutting is completed, the clamping cylinder 622 in the third gripper assembly 62 clamps the pipe. Then the chuck 3 releases the clamp on the pipe. The telescopic rod of the third cylinder 63 pushes out and drives the receiving mechanism 6 and the pipe it clamps to move away from the chuck 3. When the cut end of the pipe is away from the chuck 3, the second cylinder 616 starts and drives the support frame 613 to unload the material.
[0023] It should be noted that in existing technologies, a fully automatic feeding device is generally used to first feed the tube to be cut to the clamping mechanism of the laser tube cutting machine (i.e., the tube pulling mechanism 5 of this invention). The laser tube cutting machine then uses its own clamping mechanism to clamp the tube to the chuck for clamping and subsequent cutting. However, compared to using a fully automatic feeding device, laser tube cutting machines without such a device typically rely on manual feeding and assisted pushing, which suffers from drawbacks such as easy tube misalignment, high manual support intensity, and poor feeding continuity. Therefore, this invention provides a front clamping plate 54 on the first gripper assembly 52. The front clamping plate 54 increases the clamping distance, compensating for the first gripper assembly 52's inability to clamp the tube at its maximum distance. It covers a longer tube feeding section, eliminating the need for manual gripping and position adjustment, significantly reducing manual support. Labor intensity; in addition, after the front clamping plate 54 clamps the feed side pipe in advance, it can fix the pipe on the preset feed path through its own and the first clamping plate 523's coordinated clamping, limiting the pipe's lateral and longitudinal displacement; finally, the front clamping plate 54's advance clamping function can prevent the pipe from slipping or shifting even if there is a slight delay in subsequent manual material replenishment during use, ensuring that the progressive feeding action of the first gripper assembly 52 and the second gripper assembly 53 is not interrupted, reducing feeding stagnation caused by differences in manual operation rhythm, and indirectly improving overall processing efficiency.
[0024] In addition, regarding the selection of the sensor in this utility model: The first sensor 55 is used to sense the feed pipe and can be a photoelectric sensor or an inductive proximity sensor. The second sensor 623 is used to sense the pipe and control the third gripper assembly to clamp the material. It can be a through-beam photoelectric sensor (the transmitter and receiver need to be installed opposite each other on the back of the mounting plate 621. When the pipe extends into the range of the third gripper, it will block the light to achieve "directional and accurate detection" and avoid false sensing of other metal parts of the equipment) or a capacitive proximity sensor (if processing non-metallic pipes). The third sensor 8 is used to sense the position of the pipe moving from the chuck 3 to the discharge side to send a movement command to the receiving mechanism 6. It can be an inductive proximity sensor or a ranging diffuse reflection photoelectric sensor.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A laser tube cutting machine with a progressive tube pulling mechanism, comprising a frame assembly, the frame assembly consisting of a main body (1) and a boss frame (2), wherein a chuck (3) is mounted on the main body (1), and a movable cutting assembly (4) is provided on the top of the boss frame (2), characterized in that: The chuck (3) has a tube pulling mechanism (5) on its feed side. The tube pulling mechanism (5) includes a positive and negative screw assembly (51) installed on the side of the boss frame (2) and a first gripper assembly (52) and a second gripper assembly (53) slidably installed on the positive and negative screw assembly (51). The tube pulling mechanism (5) pulls the tube into the chuck (3) by continuously feeding the tube in a progressive manner through the two moving gripper assemblies. The chuck (3) has a receiving mechanism (6) on its discharge side. The receiving mechanism (6) is slidably disposed with the top of the boss frame (2). The receiving mechanism (6) clamps and guides the tube in the chuck (3) and completes the unloading after the tube is cut.
2. The laser tube cutting machine with a progressive tube pulling mechanism according to claim 1, characterized in that: The top surface of the boss frame (2) is provided with a sliding guide rail (7). The moving cutting assembly (4) includes a moving component (41) that is slidably disposed with the sliding guide rail (7) and a laser cutting head (42) mounted on the moving component (41). The moving component (41) drives the laser cutting head (42) to perform three-dimensional moving cutting on the pipe.
3. The laser tube cutting machine with a progressive tube pulling mechanism according to claim 1, characterized in that: The first gripper assembly (52) and the second gripper assembly (53) have the same structure; the positive and negative lead screw assembly (51) includes a first slide rail (511) installed on the side of the boss frame (2) and a lead screw motor (512) installed on one end of the boss frame (2), as well as a positive and negative lead screw (513) connected to the output end of the lead screw motor (512).
4. The laser tube cutting machine with a progressive tube pulling mechanism according to claim 3, characterized in that: The first gripper assembly (52) includes a movable plate (521). One end of the movable plate (521) is connected to a sliding seat that is slidably connected to the first slide rail (511) and a connecting block that is threadedly connected to the positive and negative lead screw (513). A second slide rail (522) is fixedly provided on the side of the movable plate (521). Two first clamping plates (523) are slidably connected on the second slide rail (522). A rack plate (524) is connected to the bottom of each of the two first clamping plates (523). A gear (525) is rotatably mounted on the movable plate (521) and meshes with the racks on the two rack plates (524). A first cylinder (526) is installed on the side of the movable plate (521) below the gear (525). The telescopic rod of the first cylinder (526) is connected to one of the first clamping plates (523).
5. The laser tube cutting machine with a progressive tube pulling mechanism according to claim 4, characterized in that: The feed side plates of the two first clamping plates (523) in the first gripper assembly (52) are each connected to a front clamping plate (54). The front clamping plate (54) is used to increase the clamping distance and clamp the feed side pipe in advance. A first sensor (55) for sensing the feed pipe is installed on the plate between the front clamping plate (54) and the first clamping plate (523).
6. The laser tube cutting machine with a progressive tube pulling mechanism according to claim 2, characterized in that: The receiving mechanism (6) includes a right-angle plate (61). The bottom of the right-angle plate (61) is slidably connected to the sliding guide rail (7) via a sliding seat. Both sides of the vertical plate at one end of the right-angle plate (61) are fixedly installed with seated bearings (611). A rotating rod (612) is rotatably installed between the two seated bearings (611). A support frame (613) is connected to the rotating rod (612). An arc-shaped tray (614) is provided on the support frame (613). A curved block (615) is fixedly installed at the middle position of the rotating rod (612). A second cylinder (616) is hinged at the outer corner of the right-angle plate (61). 16) One end of the telescopic rod is hinged to the curved block (615); the side of the right angle plate (61) is connected to a third gripper assembly (62), the third gripper assembly (62) includes an arch-shaped mounting plate (621) set on one side of the support frame (613) and connected to the right angle plate (61), the two sides of the mounting plate (621) are equipped with oppositely arranged clamping cylinders (622), and a second sensor (623) for sensing the pipe is installed at the middle position of the side of the mounting plate (621); a third cylinder (63) is installed on the back of the boss frame (2), and one end of the telescopic rod of the third cylinder (63) is hinged to the right angle plate (61).
7. The laser tube cutting machine with a progressive tube drawing mechanism according to claim 1, characterized in that: A third sensor (8) is installed on the side of the boss frame (2) on one side of the chuck (3). The third sensor (8) is used to sense the position of the pipe moving from the chuck (3) to the discharge side, so as to send a movement command to the receiving mechanism (6).
8. The laser tube cutting machine with a progressive tube pulling mechanism according to claim 1, characterized in that: A variable diameter wheel (9) is mounted on one end of the main unit (1) on the feeding side via a mounting bracket.