A laser pipe cutting machine

Abstract

This invention relates to the field of laser processing technology, specifically to a laser tube cutting machine, comprising a frame and a processing rack connected to one end of the frame. The frame is equipped with a rotating clamping mechanism, an electric guide rail, and an electric telescopic lifting frame. A controller is fixedly connected to the side wall of the processing rack. Clamping components are provided on the processing rack, and a hydraulic cylinder is mounted on it. A mounting plate is fixedly connected to the output end of the hydraulic cylinder, and a laser cutting head is fixedly connected to the mounting plate. This invention, by incorporating a liftable receiving device on the processing rack, stably lifts the section of the tube to be cut during the cutting process, effectively preventing thin-walled or soft tubes from bending or sagging due to their own weight. It significantly improves problems such as uneven cuts, end deformation, and burrs, greatly enhancing the cutting accuracy and end face quality of the tube.

Description

Technical Field

[0001] This invention belongs to the field of laser processing technology, and specifically relates to a laser tube cutting machine. Background Technology

[0002] Laser tube cutting machines are automated equipment that uses high-energy laser beams to cut metal or non-metal tubes. They are widely used in automobile manufacturing, aerospace, furniture manufacturing, pipeline engineering and other fields. With the continuous improvement of industrial automation, higher requirements are being placed on the processing efficiency, automation level and cutting quality of laser tube cutting machines.

[0003] During the operation of a laser tube cutting machine, after the tube is cut, the cut tube segments need to be removed from the cutting workpiece and collected for subsequent processing or packaging. Existing tube cutting machines typically use the following working method when cutting tubes: the tube is clamped and rotated by a rotary clamping mechanism, and then the end of the tube is moved to the discharge port of the processing rack by an electric guide rail. At this time, the tube is rotated one revolution by the rotary clamping mechanism, and the laser cutting head completes the circular cut of the tube. After the cut is completed, the cut tube segments fall directly into the collection box below.

[0004] In actual cutting, when cutting cylindrical tubes with thin walls or soft materials, after the cylindrical tube has rotated more than half a turn, only a local area of ​​the cut section of the cylindrical tube is still connected to the main body. In this state, the cut section of the tube will naturally bend under its own weight, resulting in defects at the cut, such as uneven cut, end deformation or burrs, which seriously affects the cutting quality. Meanwhile, cylindrical pipes with thinner walls or softer materials fall directly into the collection box after being cut, which not only causes damage to the surface of the cylindrical pipes, but also makes the cylindrical pipes in the collection box messy, requiring secondary sorting by staff, increasing the process and cost. Summary of the Invention

[0005] The purpose of this invention is to provide a laser tube cutting machine with a simple structure and reasonable design in order to solve the above problems.

[0006] The present invention achieves the above objectives through the following technical solutions: A laser tube cutting machine includes a frame and a processing rack connected to one end of the frame. An electric guide rail and an electric telescopic support frame are installed on the frame. A rotating clamping mechanism is installed on the electric guide rail. A controller is fixedly connected to the side wall of the processing rack. A clamping assembly is provided on the processing rack. A hydraulic cylinder is installed on the processing rack. A mounting plate is fixedly connected to the output end of the hydraulic cylinder. A laser cutting head is fixedly connected to the mounting plate. The processing rack is provided with a receiving device, which includes a rectangular frame that can be detachably installed on the processing rack. A rectangular plate is fixedly connected to the rectangular frame. The rectangular plate is provided with a receiving component and a drive component for controlling the receiving component to lift and lower. The rectangular frame and the rectangular plate are jointly provided with a feeding device. The feeding device includes a bracket that can be detachably installed on the rectangular plate. A feeding plate one is fixedly connected to the bracket. A support frame is detachably installed on the rectangular frame. A feeding plate two is fixedly connected to the support frame. A buffer device is provided on the support frame. The support frame is provided with a pushing device, which includes a mounting frame that can be detachably installed on the support frame. A receiving frame is fixedly connected to the mounting frame, and a pushing component is provided on the receiving frame. The receiving frame is provided with a collection device on its side wall. The collection device includes a collection box, which is abutted against one end of the receiving frame.

[0007] As a further optimization of the present invention, the receiving component includes four telescopic rods fixedly connected to a rectangular plate. The four telescopic rods are arranged in pairs, and the two pairs of telescopic rods are symmetrically arranged. One end of the four telescopic rods is fixedly connected to a receiving plate. The receiving plate is V-shaped, and several sets of evenly distributed ball bearings are rolled on the receiving plate.

[0008] As a further optimization of the present invention, the driving assembly includes a motor fixedly connected to the lower surface of a rectangular plate, two symmetrically arranged screws rotatably connected to the upper surface of the rectangular plate, two symmetrically arranged threaded sleeves fixedly connected to the lower surface of the receiving plate, the threaded sleeves being threadedly connected to the screws, a synchronous pulley being fixedly connected to each of the two screws, and a synchronous belt being sleeved between the two screws through the synchronous pulley, and the output end of the motor being fixedly connected to one end of one screw.

[0009] As a further optimization of the present invention, the feeding device further includes a plurality of annular stop bars fixedly connected to the feeding plate one and the feeding plate two. The plurality of annular stop bars are evenly distributed. The feeding plate one and the feeding plate two are connected sequentially along the sliding direction of the pipe. The feeding plate one and the feeding plate two are both V-shaped and inclined.

[0010] As a further optimization of the present invention, the buffer device includes two brackets symmetrically fixedly connected to the support frame, and a buffer assembly is provided between the two brackets. The buffer assembly includes a rotating shaft rotatably connected to the two brackets on their adjacent surfaces. A buffer plate is fixedly connected to the rotating shaft. The buffer plate is L-shaped. A connecting plate is fixedly connected between the two brackets. Two symmetrically arranged springs are fixedly connected between the connecting plate and the buffer plate.

[0011] As a further optimization of the present invention, a U-shaped frame is provided on the connecting plate, and a rotating rod is rotatably connected to the U-shaped frame, the rotating rod rolling against the buffer plate.

[0012] As a further optimization of the present invention, the pushing component includes a cylinder fixedly connected to the receiving frame, an arc-shaped push plate slidably connected to the receiving frame, and the output end of the cylinder passing through the surface of the receiving frame and fixedly connected to the arc-shaped push plate.

[0013] As a further optimization of the present invention, the receiving frame is provided with a limiting groove that matches the size of the buffer plate, and both the receiving frame and the buffer plate are provided with arc-shaped grooves.

[0014] As a further optimization of the present invention, the four corners of the lower surface of the collection box are fixedly connected with support legs, one end of the collection box is fixedly connected with a baffle, and the baffle and the inner wall of the collection box form a discharge port. Several evenly distributed sliding grooves are opened on both sides of the collection box, and a partition is slidably connected to each sliding groove. The gap between the partitions forms a storage cavity. The upper edge height of the partitions decreases sequentially along the pipe conveying direction to form a stepped shape. The cross-section of the bottom of the inner wall of the collection box is trapezoidal. Two straight plates are fixedly connected to the partitions. Lifting components are provided on the collection box and the straight plates.

[0015] As a further optimization of the present invention, the lifting assembly includes four square plates fixedly connected to the collection box. The four square plates are arranged in pairs, and the two pairs of square plates are symmetrically arranged on both sides of the collection box. In one pair, a lead screw is rotatably connected between the two square plates. One straight plate is threadedly connected to the lead screw. A motor is fixedly connected to one square plate, and the output end of the motor is fixedly connected to one end of the lead screw. In the other pair, a guide rod is fixedly connected between the two square plates, and the guide rod is slidably connected to another straight plate.

[0016] The beneficial effects of this invention are as follows: 1. By setting up a liftable receiving device on the processing frame, the section of pipe to be cut is stably supported during the cutting process, which effectively avoids bending and sagging of thin-walled or soft pipes due to their own weight, significantly improves problems such as uneven cuts, end deformation, and burrs, and greatly enhances the cutting accuracy and end face quality of the pipe.

[0017] 2. An inclined V-shaped feed plate combined with a ring-shaped stop bar is used to ensure that the cut pipe slides smoothly along the preset track, avoiding lateral deviation and impact damage, and realizing automatic and orderly conveying of the cut pipe; a buffer device is used to elastically buffer and decelerate the sliding pipe, absorb the impact kinetic energy of the pipe, reduce the risk of collision damage to the pipe, and protect the appearance and dimensional accuracy of the pipe.

[0018] 3. The pushing device can stably push the buffered pipes into the collection device, realizing automated pushing without manual assistance, improving the automation level and continuous operation capability of the whole machine. The collection box is equipped with stepped partitions to form an independent storage chamber, so that the pipes are automatically arranged and stored in sequence, avoiding messy stacking, saving the secondary sorting process, reducing labor costs, and improving subsequent processing efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the processing frame in this invention; Figure 3 This is a three-dimensional schematic diagram of the receiving device in this invention; Figure 4 This is a cross-sectional perspective view of the rectangular plate in this invention; Figure 5 This is a three-dimensional schematic diagram of the feeding device in this invention; Figure 6 In this invention Figure 5 A frontal view diagram; Figure 7 This is a cross-sectional perspective view of the buffer device in this invention; Figure 8 This is a three-dimensional schematic diagram of the feeding device and the collecting device in this invention; Figure 9 This is a cross-sectional perspective view of the collection box in this invention; Figure 10 This is a three-dimensional schematic diagram of the partition in this invention; Figure 11 This is a schematic diagram showing the position of the guide rod in this invention.

[0020] In the diagram: 1. Frame; 101. Rotary clamping mechanism; 102. Electric guide rail; 103. Electric telescopic lifting frame; 2. Processing frame; 201. Controller; 202. Hydraulic cylinder; 203. Mounting plate; 204. Laser cutting head; 205. Clamping assembly; 3. Receiving device; 301. Rectangular frame; 302. Rectangular plate; 303. Motor; 304. Screw; 305. Synchronous belt; 306. Screw sleeve; 307. Receiving plate; 308. Telescopic rod; 309. Ball bearing; 4. Unloading device; 401. Bracket; 402. Unloading plate one; 403. Support frame; 40 4. Feeding plate II; 405. Annular stop bar; 5. Buffer device; 501. Bracket; 502. Connecting plate; 503. Rotating shaft; 504. Buffer plate; 505. Spring; 506. U-shaped frame; 507. Rotating rod; 6. Pushing device; 601. Mounting frame; 602. Receiving frame; 603. Limiting groove; 604. Arc-shaped groove; 605. Cylinder; 606. Arc-shaped push plate; 7. Collection device; 701. Collection box; 702. Baffle; 703. Partition; 704. Straight plate; 705. Square plate; 706. Lead screw; 707. Motor; 708. Guide rod. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] For examples, please refer to Figures 1-11A laser tube cutting machine includes a frame 1 and a processing frame 2 connected to one end of the frame 1. An electric guide rail 102 and an electric telescopic support frame 103 are mounted on the frame 1. A rotating clamping mechanism 101 (the rotating clamping mechanism 101, electric guide rail 102, and electric telescopic support frame 103 are all prior art and will not be described in detail) is mounted on the side wall of the processing frame 2. A clamping assembly 205 is provided on the processing frame 2. A hydraulic cylinder 202 is mounted on the processing frame 2, and a mounting plate 203 is fixedly connected to the output end of the hydraulic cylinder 202. A laser cutting head 204 is fixedly connected to the mounting plate 203. A receiving device 3 is provided on the processing frame 2. The receiving device 3 includes a rectangular frame 301 detachably mounted on the processing frame 2. A rectangular plate 302 is fixedly connected to the rectangular frame 301. The device is equipped with a receiving component and a drive component for controlling the lifting and lowering of the receiving component; a feeding device 4 is jointly provided on the rectangular frame 301 and the rectangular plate 302. The feeding device 4 includes a bracket 401 detachably installed on the rectangular plate 302. A feeding plate 402 is fixedly connected to the bracket 401. A support frame 403 is detachably installed on the rectangular frame 301. A feeding plate 404 is fixedly connected to the support frame 403. A buffer device 5 is provided on the support frame 403. A pushing device 6 is provided on the support frame 403. The pushing device 6 includes a mounting frame 601 detachably installed on the support frame 403. A receiving frame 602 is fixedly connected to the mounting frame 601. A pushing component is provided on the receiving frame 602. A collecting device 7 is provided on the side wall of the receiving frame 602. The collecting device 7 includes a collecting box 701, which abuts against one end of the receiving frame 602.

[0023] In this embodiment, firstly, the operator starts the equipment via controller 201 and places the pipe to be cut into the rotary clamping mechanism 101. The rotary clamping mechanism 101 firmly clamps the pipe. Simultaneously, the electric telescopic lifting frame 103 extends to support the free end of the pipe, preventing the long pipe from sagging under gravity and ensuring that the pipe remains horizontal along its entire length. Subsequently, the electric guide rail 102 drives the rotary clamping mechanism 101 to move axially along the frame 1, precisely conveying the end of the pipe to the discharge port of the processing rack 2. At this point, the controller 201 sends a command to the hydraulic cylinder 202, which drives the mounting plate 203 to descend, causing the laser cutting head 204, which is fixedly connected to the mounting plate 203, to reach the preset cutting position. When cutting begins, the rotating clamping mechanism 101 drives the pipe to rotate uniformly around its axis. Simultaneously, the laser cutting head 204 emits a high-energy laser beam to perform a circular cut on the pipe. During the pipe's rotational cutting process, the electric telescopic support frame 103 continuously supports the free end of the pipe, ensuring smooth rotation. When the pipe has rotated more than halfway... After one cycle, only a small portion of the cut pipe remains connected to the main body. At this point, the receiving component in the receiving device 3, driven by the drive component, rises to a position contacting the bottom of the pipe, supporting the section about to be cut. This effectively prevents the pipe section from bending naturally due to its own weight, ensuring the flatness and precision of the cut. After the laser cutting head 204 completes one cycle of cutting, the cut pipe section is completely separated from the main body. At this point, the rotating clamping mechanism 101 and the electric guide rail 102 drive the main body of the pipe to be cut towards... The feeder initiates a process where the end of the pipe to be cut contacts the end face of the pipe segment to be cut, thereby pushing the cut pipe segment off the receiving assembly. After being pushed off, the cut pipe segment falls into the feeding device 4 under the action of gravity, slides down along the inclined feeding plates 402 and 404, and enters the buffer device 5. The buffer device 5 provides elastic buffering and deceleration for the pipe to prevent surface damage due to high-speed impact. After deceleration, the pipe enters the receiving frame 602, and the pushing device 6 pushes the pipe into the collection box 701 of the collecting device 7.

[0024] Please see Figures 2-4The receiving component includes four telescopic rods 308 fixedly connected to a rectangular plate 302. The four telescopic rods 308 are arranged in pairs, with the two pairs of telescopic rods 308 arranged symmetrically. One end of the four telescopic rods 308 is fixedly connected to a receiving plate 307. The receiving plate 307 is V-shaped and has several sets of evenly distributed balls 309 rolling on it. The driving component includes a motor 303 fixedly connected to the lower surface of the rectangular plate 302. Two symmetrically arranged screws 304 are rotatably connected to the upper surface of the rectangular plate 302. Two symmetrically arranged threaded sleeves 306 are fixedly connected to the lower surface of the receiving plate 307. The threaded sleeves 306 are threadedly connected to the screws 304. A synchronous pulley is fixedly connected to each of the two screws 304, and a synchronous belt 305 is sleeved between the two screws 304 through the synchronous pulley. The output end of the motor 303 is fixedly connected to one end of one screw 304.

[0025] In this embodiment, when pipes of different diameters need to be cut, the motor 303 is started, driving the screw 304 to rotate. This screw 304, through a synchronous pulley and synchronous belt 305, drives another screw 304 to rotate synchronously. The two screws 304 synchronously drive the threaded sleeve 306 connected to them to move axially along the screw 304. The threaded sleeve 306 drives the receiving plate 307 to rise and fall. The telescopic rod 308 guides and limits the receiving plate 307. Therefore, the receiving plate 307 rises and falls smoothly in the vertical direction under the action of the threaded sleeve 306. At this time, the receiving plate is adjusted according to the diameter of the pipe. The lifting height of plate 307 is adjusted. During pipe cutting, the V-shaped inner wall of the receiving plate 307 contacts the lower outer arc surface of the pipe, supporting the pipe. The rolling balls 309 on the receiving plate 307 cause rolling friction between the pipe and the receiving plate 307 during rotational cutting, which ensures smooth rotation of the pipe and avoids scratches on the pipe surface. At the same time, the V-shaped inner wall of the receiving plate 307 provides stable support for pipes of different diameters, effectively preventing the pipe from bending naturally due to gravity during cutting and avoiding defects such as uneven cuts, end deformation, or burrs.

[0026] Please see Figure 2 , Figure 3 , Figure 5 , Figure 6 The feeding device 4 also includes several annular baffles 405 fixedly connected to the feeding plate 1 402 and the feeding plate 2 404. The several annular baffles 405 are evenly distributed. The feeding plate 1 402 and the feeding plate 2 404 are connected sequentially along the sliding direction of the pipe. The feeding plate 1 402 and the feeding plate 2 404 are both V-shaped and inclined.

[0027] In this embodiment, the main body of the pipe to be cut is fed forward under the drive of the rotary clamping mechanism 101 and the electric guide rail 102. The end of the pipe to be cut contacts the end face of the pipe segment to be cut, and the pipe segment to be cut is pushed forward along the ball bearings 309 of the receiving plate 307. After the pipe segment to be cut is pushed out of the receiving plate 307, it falls into the unloading plate 402 under the action of gravity. Since the unloading plate 402 is V-shaped and inclined, the pipe automatically centers after falling in and slides down along the inclined direction of the unloading plate 402 under the action of gravity. The annular stop on the unloading plate 402 Rod 405 guides and limits the pipe, preventing it from rolling out laterally during the descent. After the pipe slides to the end of the first cutting plate 402, it enters the second cutting plate 404 connected to it and continues to slide down. The first cutting plate 402 and the second cutting plate 404 receive the pipe pushed out from the receiving plate 307 and use gravity to make the pipe slide down automatically, realizing the automatic conveying of the pipe from the cutting station to the downstream device. The double-layer design of the first cutting plate 402 and the second cutting plate 404 can avoid the problem of large collisions when the pipe falls into the first cutting plate 402 when the bearing plate is high.

[0028] Please see Figures 6-8 The buffer device 5 includes two brackets 501 symmetrically fixedly connected to the support frame 403. A buffer assembly is provided between the two brackets 501. The buffer assembly includes a rotating shaft 503 rotatably connected to the two brackets 501 on their adjacent surfaces. A buffer plate 504 is fixedly connected to the rotating shaft 503. The buffer plate 504 is L-shaped. A connecting plate 502 is fixedly connected between the two brackets 501. Two symmetrically arranged springs 505 are fixedly connected between the connecting plate 502 and the buffer plate 504. A U-shaped frame 506 is provided on the connecting plate 502. A rotating rod 507 is rotatably connected to the U-shaped frame 506. The rotating rod 507 rolls against the buffer plate 504.

[0029] In this embodiment, after the pipe slides off the feed plate 404, it impacts the buffer plate 504. The buffer plate 504 is L-shaped, and its vertical part absorbs the impact of the pipe. When the pipe impacts the buffer plate 504, the buffer plate 504 rotates around the pivot 503 away from the direction in which the pipe slides. At this time, the spring 505 connected between the connecting plate 502 and the buffer plate 504 is stretched. The elastic deformation of the spring 505 absorbs the kinetic energy generated by the impact of the pipe, causing the speed of the pipe to gradually decrease. It slowly slides down the surface of the buffer plate 504. Subsequently, the spring 505 releases its elastic potential energy, pushing the buffer plate 504 to rotate in the opposite direction around the pivot 503, returning to its initial position, ready to receive the next pipe. The rotating rod 507 can restrict the position of the buffer plate 504 after it is reset.

[0030] Please see Figures 5-8The pushing component includes a cylinder 605 fixedly connected to the receiving frame 602. An arc-shaped push plate 606 is slidably connected to the receiving frame 602. The output end of the cylinder 605 passes through the surface of the receiving frame 602 and is fixedly connected to the arc-shaped push plate 606. A limiting groove 603 adapted to the size of the buffer plate 504 is provided on the receiving frame 602. Arc-shaped grooves 604 are provided on both the receiving frame 602 and the buffer plate 504.

[0031] In this embodiment, the limiting groove 603 restricts the buffer plate 504 from rotating toward the receiving frame 602 after being impacted by the pipe, so that the buffer plate 504 stops on the limiting groove 603. At this time, the receiving frame 602 and the arc-shaped groove 604 opened on the buffer plate 504 cooperate with each other to form a channel for the pipe to pass through, ensuring that the pipe can smoothly transition from the buffer device 5 to the receiving frame 602. When the pipe is completely in the receiving frame 602, the cylinder 605 is activated, the output end of the cylinder 605 extends, and pushes the arc-shaped push plate 606 to slide along the receiving frame 602. The arc-shaped surface of the arc-shaped push plate 606 fits against the outer wall of the pipe, pushing the pipe to one end of the receiving frame 602 and pushing the pipe into the collection box 701.

[0032] Please see Figures 8-11 The four corners of the lower surface of the collection box 701 are fixedly connected with support legs. One end of the collection box 701 is fixedly connected with a baffle 702, which forms a discharge port with the inner wall of the collection box 701. Several evenly distributed sliding grooves are opened on both sides of the collection box 701. A partition 703 is slidably connected to each sliding groove. The gaps between the partitions 703 form a storage cavity. The upper edge height of the partitions 703 decreases sequentially along the conveying direction of the pipe, forming a stepped shape. The cross-section of the bottom of the inner wall of the collection box 701 is trapezoidal. Two straight plates 704 are fixedly connected together between the partitions 703. A lifting assembly is provided on plate 704. The lifting assembly includes four square plates 705 fixedly connected to the collection box 701. The four square plates 705 are arranged in pairs, and the two pairs of square plates 705 are symmetrically arranged on both sides of the collection box 701. In one pair, a lead screw 706 is rotatably connected between the two square plates 705. A straight plate 704 is threadedly connected to the lead screw 706. A motor 707 is fixedly connected to one square plate 705. The output end of the motor 707 is fixedly connected to one end of the lead screw 706. In the other pair, a guide rod 708 is fixedly connected between the two square plates 705. The guide rod 708 is slidably connected to another straight plate 704.

[0033] In this embodiment, the pipe pushed into the collection box 701 by the pushing device 6 first enters the first storage cavity (i.e., the gap between the partition 703 closest to the receiving frame 602 and the adjacent partition 703). Since the cross-section of the bottom of the inner wall of the collection box 701 is trapezoidal, the pipe automatically centers after entering and is stably placed in the storage cavity. When the first storage cavity is filled with pipes, subsequent pipes cannot enter the first storage cavity. At this time, the subsequent pipes continue to roll forward along the upper edge of the stepped partitions 703 under the push of the pushing device 6. Since the height of the upper edge of the partitions 703 decreases sequentially along the pipe conveying direction, the pipes can smoothly roll from the upper edge of the previous partition 703 into the next storage cavity, and so on, the pipes sequentially fill the second storage cavity. The storage chamber, the third storage chamber... until all storage chambers are filled. When the collection box 701 is filled with pipes, the motor 707 is started. The motor 707 controls the lead screw 706 to rotate between the two square plates 705, driving the straight plate 704 threadedly connected to it to move vertically. Since the two straight plates 704 are fixedly connected to all the partitions 703, when one straight plate 704 drives all the partitions 703 to rise and fall synchronously, the straight plate 704 on the other side rises and falls synchronously along the guide rod 708. After the partitions 703 are raised, the height of the upper edge of the partitions 703 changes. Under the action of gravity, the pipes in the storage chamber roll along the trapezoidal inclined surface at the bottom of the inner wall of the collection box 701 and slide out through the discharge port formed between the baffle 702 and the inner wall of the collection box 701, realizing batch material collection.

[0034] It should be noted that the pipes mentioned in this article are cylindrical pipes.

[0035] In actual use, the operator starts the equipment via controller 201, places the pipe to be cut in the rotating clamping mechanism 101 and clamps it. The electric telescopic support frame 103 supports the free end of the pipe to ensure it is horizontal. The electric guide rail 102 drives the rotating clamping mechanism 101 to move along the frame 1, accurately feeding the end of the pipe to the discharge port of the processing rack 2. The hydraulic cylinder 202 drives the mounting plate 203 to descend, so that the laser cutting head 204 reaches the preset cutting position. After cutting begins, the rotating clamping mechanism 101 drives the pipe to rotate at a uniform speed, and the laser cutting head 204 emits a laser beam to perform circular cutting. At the same time, according to the pipe diameter, the motor 303 drives the two screws 304 to rotate synchronously via the synchronous belt 305, driving the screw sleeve 306 and the receiving plate 307 to rise and fall along the telescopic rod 308, so that the V-shaped receiving plate 307 and its ball bearings 309 are in contact with the pipe. The lower contact provides stable support for the cutting section, ensuring cutting accuracy and preventing pipe bending. After cutting and separation of the pipe section, the rotating clamping mechanism 101 and the electric guide rail 102 drive the pipe to be cut forward. The end face pushes the cut pipe section out from the receiving plate 307. The pipe section enters the inclined V-shaped feeding plate 402, is guided by the ring stop bar 405, and slides to the feeding plate 404, realizing automatic gravity conveying. After the pipe slides out of the feeding plate 404, it hits the L-shaped buffer plate 504. The buffer plate 504 rotates around the rotating shaft 503 and stretches the spring 505 to absorb kinetic energy and achieve deceleration and buffering. Then the spring 505 returns to its original position, and the pipe smoothly enters the receiving frame 602 through the arc groove 604. The cylinder 605 pushes the arc push plate 606 to push the pipe into the collection box 701. The collection box 701 is equipped with stepped partitions 703 to form multiple storage chambers. The pipes first fill the first storage cavity. After the first cavity is full, the subsequent pipes roll down along the upper edge of the partition 703 to fill the next storage cavity in sequence. After the collection box 701 is full, the motor 707 drives the lead screw 706 to rotate, which drives the straight plate 704 and all the partitions 703 to rise and fall. The pipes in the storage cavity automatically slide out from the discharge port along the trapezoidal slope, realizing batch material collection. The whole process realizes a fully automated assembly line operation from pipe feeding, cutting, receiving, buffering unloading to classification and collection, which significantly improves cutting efficiency and finished product quality.

[0036] The above embodiments are merely illustrative of several implementation methods of the present invention, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A laser tube cutting machine, comprising a frame (1) and a processing rack (2) connected to one end of the frame (1), characterized in that: An electric guide rail (102) and an electric telescopic lifting frame (103) are installed on the frame (1). A rotating clamping mechanism (101) is installed on the electric guide rail (102). A controller (201) is fixedly connected to the side wall of the processing frame (2). A clamping assembly (205) is provided on the processing frame (2). A hydraulic cylinder (202) is installed on the processing frame (2). An installation plate (203) is fixedly connected to the output end of the hydraulic cylinder (202). A laser cutting head (204) is fixedly connected to the installation plate (203). The processing rack (2) is provided with a receiving device (3), the receiving device (3) includes a rectangular frame (301) that is detachably installed on the processing rack (2), a rectangular plate (302) is fixedly connected to the rectangular frame (301), and a receiving component and a drive component for controlling the receiving component to lift and lower are provided on the rectangular plate (302). A feeding device (4) is provided on both the rectangular frame (301) and the rectangular plate (302). The feeding device (4) includes a bracket (401) that is detachably installed on the rectangular plate (302). A feeding plate one (402) is fixedly connected to the bracket (401). A support frame (403) is detachably installed on the rectangular frame (301). A feeding plate two (404) is fixedly connected to the support frame (403). A buffer device (5) is provided on the support frame (403). The support frame (403) is provided with a pushing device (6), the pushing device (6) includes a mounting frame (601) that is detachably mounted on the support frame (403), a receiving frame (602) is fixedly connected to the mounting frame (601), and a pushing component is provided on the receiving frame (602); The receiving frame (602) is provided with a collection device (7) on its side wall. The collection device (7) includes a collection box (701) which abuts against one end of the receiving frame (602).

2. The laser tube cutting machine according to claim 1, characterized in that: The receiving component includes four telescopic rods (308) fixedly connected to a rectangular plate (302). The four telescopic rods (308) are arranged in pairs, and the two pairs of telescopic rods (308) are symmetrically arranged. One end of the four telescopic rods (308) is fixedly connected to a receiving plate (307). The receiving plate (307) is V-shaped, and several sets of evenly distributed ball bearings (309) are rolled on the receiving plate (307).

3. A laser tube cutting machine according to claim 2, characterized in that: The drive assembly includes a motor (303) fixedly connected to the lower surface of a rectangular plate (302). Two symmetrically arranged screws (304) are rotatably connected to the upper surface of the rectangular plate (302). Two symmetrically arranged threaded sleeves (306) are fixedly connected to the lower surface of the receiving plate (307). The threaded sleeves (306) are threadedly connected to the screws (304). Synchronous pulleys are fixedly connected to both screws (304), and a synchronous belt (305) is sleeved between the two screws (304) through the synchronous pulleys. The output end of the motor (303) is fixedly connected to one end of one screw (304).

4. A laser tube cutting machine according to claim 1, characterized in that: The feeding device (4) also includes several annular stops (405) fixedly connected to the first feeding plate (402) and the second feeding plate (404). The several annular stops (405) are evenly distributed. The first feeding plate (402) and the second feeding plate (404) are connected sequentially along the direction of pipe sliding. The first feeding plate (402) and the second feeding plate (404) are both V-shaped and inclined.

5. A laser tube cutting machine according to claim 1, characterized in that: The buffer device (5) includes two brackets (501) symmetrically fixedly connected to the support frame (403). A buffer assembly is provided between the two brackets (501). The buffer assembly includes a rotating shaft (503) rotatably connected to the two brackets (501) on a side close to each other. A buffer plate (504) is fixedly connected to the rotating shaft (503). The buffer plate (504) is L-shaped. A connecting plate (502) is fixedly connected between the two brackets (501). Two symmetrically arranged springs (505) are fixedly connected between the connecting plate (502) and the buffer plate (504).

6. A laser tube cutting machine according to claim 5, characterized in that: A U-shaped frame (506) is provided on the connecting plate (502), and a rotating rod (507) is rotatably connected to the U-shaped frame (506). The rotating rod (507) rolls against the buffer plate (504).

7. A laser tube cutting machine according to claim 1, characterized in that: The pushing component includes a cylinder (605) fixedly connected to the receiving frame (602), and an arc-shaped push plate (606) slidably connected to the receiving frame (602). The output end of the cylinder (605) passes through the surface of the receiving frame (602) and is fixedly connected to the arc-shaped push plate (606).

8. A laser tube cutting machine according to claim 1, characterized in that: The receiving frame (602) is provided with a limiting groove (603) that matches the size of the buffer plate (504), and both the receiving frame (602) and the buffer plate (504) are provided with arc-shaped grooves (604).

9. A laser tube cutting machine according to claim 1, characterized in that: The four corners of the lower surface of the collection box (701) are fixedly connected with support legs. One end of the collection box (701) is fixedly connected with a baffle (702). The baffle (702) and the inner wall of the collection box (701) form a discharge port. Several evenly distributed sliding grooves are opened on both sides of the collection box (701). A partition (703) is slidably connected to each sliding groove. The gap between the partitions (703) forms a storage cavity. The height of the upper edge of the partitions (703) decreases sequentially along the pipe conveying direction to form a step. The cross-section of the bottom of the inner wall of the collection box (701) is trapezoidal. Two straight plates (704) are fixedly connected between the partitions (703). Lifting components are provided on the collection box (701) and the straight plates (704).

10. A laser tube cutting machine according to claim 9, characterized in that: The lifting assembly includes four square plates (705) fixedly connected to the collection box (701). The four square plates (705) are arranged in pairs, and the two pairs of square plates (705) are symmetrically arranged on both sides of the collection box (701). In one pair, a lead screw (706) is rotatably connected between two square plates (705). A straight plate (704) is threadedly connected to the lead screw (706). A motor (707) is fixedly connected to one square plate (705). The output end of the motor (707) is fixedly connected to one end of the lead screw (706). In the other pair, a guide rod (708) is fixedly connected between two square plates (705). The guide rod (708) is slidably connected to another straight plate (704).

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