A three-chuck laser pipe cutting device

Abstract

The utility model provides a kind of three chuck laser pipe cutting equipment, belong to pipe processing technical field, including rack;Pushing material chuck, it is slidably assembled on rack, pushing material chuck can be moved along horizontal direction on rack, pushing material chuck is used to grab and push pipe material to move;Material receiving chuck, it is slidably assembled on rack, material receiving chuck can be moved along horizontal direction on rack, material receiving chuck has rotatable grabbing material chuck, and grabbing material chuck is provided with through hole for pipe material to pass through;The utility model improves feeding mechanism, realizes the goal of long size pipe material feeding and processing, cylinder replaces hydraulic cylinder, not only reduce the production cost of equipment, also reduce equipment maintenance cost.

Description

Technical Field

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

[0002] In the field of pipe processing, pipe cutting has transitioned from semi-automatic processing to fully automatic processing, which has greatly reduced manpower, avoided high-intensity work for workers, and improved safety.

[0003] However, current fully automated pipe cutting production lines also have some problems, the most important of which is cost. To achieve fully automated production lines, a significant portion of them use robotic arms (industrial robots) to pick up the pipes onto the conveyor belt, then fix them with chucks (or directly transfer the pipes between two chucks and fix them with the chucks), thus completing the loading process, before cutting.

[0004] The utility model patent with application number 202421869475.X discloses a three-chuck automatic pipe cutting machine. This solution ingeniously integrates a cutting and feeding machine body, an innovative pipe lifting device, a precision three-jaw chuck mechanism, a high-efficiency loading and unloading robotic arm, a flexible unloading and feeding machine body, an intelligent unloading mechanism, and a sophisticated limiting mechanism to jointly construct a fully automated pipe cutting production line system, completely subverting the traditional cutting process's reliance on manual labor.

[0005] This solution eliminates reliance on manual labor by using robotic arms for loading and unloading. However, while such pipe cutting production lines achieve fully automated production, the investment costs are too high for most companies to afford. Even if they can afford it, the payback period is slow, and the equipment requires long-term maintenance. These problems, in turn, hinder the advancement of automation and intelligence, forcing some companies to continue using semi-automated, semi-manual production methods.

[0006] There are some alternative solutions to the above problems, such as using a horizontal feeding system combined with a vertical lifting structure to complete the loading action. However, in this type of equipment, the loading and cutting actions cannot be performed simultaneously; that is, the loading action can only be performed after the cutting is completed, resulting in reduced production efficiency.

[0007] The utility model patent with application number 202410439167.1 discloses a laser tube cutting machine and cutting method with a waiting function. The solution has a waiting area. While the cutting mechanism is cutting, the feeding mechanism can continue to feed the material, transporting the next tube to be processed to the lower axis of the clamping end of the rear chuck mechanism in advance, realizing the waiting of material in advance, effectively shortening the automatic feeding time and improving the processing efficiency.

[0008] However, this solution also has some drawbacks. For example, the pipe material we use is relatively long, reaching over ten meters. One pipe material can be processed into 3-4 finished pipes, avoiding frequent loading and unloading operations that would affect processing efficiency. However, the excessive length of the material necessitates multiple lifting mechanisms to operate simultaneously to maintain stability. While vertical lifting structures offer better stability, overcoming the weight of long pipes requires a significant workload, typically necessitating hydraulic cylinders. Using multiple hydraulic cylinders not only increases costs considerably but also maintenance costs. Utility Model Content

[0009] This invention provides a three-disc laser tube cutting device to solve the technical problems in the prior art.

[0010] To solve the above problems, the three-disc laser tube cutting equipment provided by this utility model adopts the following technical solution: including a frame;

[0011] The pusher chuck is slidably mounted on the frame and can move horizontally on the frame. The pusher chuck is used to grip and push the pipe.

[0012] The receiving chuck is slidably mounted on the frame and can move horizontally on the frame. The receiving chuck has a rotatable gripping chuck and a through hole for the pipe to pass through.

[0013] The end chuck is installed at the end of the receiving chuck away from the pusher chuck, and the structure of the end chuck is the same as that of the receiving chuck.

[0014] The laser cutting mechanism is located on the side of the end chuck away from the receiving chuck, and is used to cut pipes.

[0015] The material pulling mechanism is located on the side of the laser cutting mechanism away from the end chuck. The material pulling mechanism can move horizontally on the frame to pull the tube.

[0016] The feeding mechanism is used for horizontal conveying of pipes and is located on the front side of the frame.

[0017] The feeding mechanism is used to lift the tubing onto the tubing. Its axis coincides with the axis of the pusher chuck. The feeding mechanism is fixedly installed at the front end of the frame.

[0018] The feeding mechanism includes a mounting base fixedly connected to the frame, a hinge shaft fixedly connected to the mounting base, a load-bearing rod hinged to the hinge shaft, a rotating shaft parallel to the hinge shaft rotatably mounted on the other end of the load-bearing rod, a support base fixedly connected to the rotating shaft, a positioning groove for placing the pipe on the support base, and a telescopic structure hinged to the mounting base, the other end of the telescopic structure being hinged to the load-bearing rod.

[0019] Both the hinge shaft and the rotating shaft are fixedly connected to balance sprockets, and a chain is wound between the two balance sprockets so that the opening of the positioning groove always faces upward during the lifting and lowering process of the support base.

[0020] As a further improvement, a tensioning seat is also fixedly installed on the load-bearing rod. The tensioning seat has a rectangular hole, and an adjusting bolt is installed in the rectangular hole. The adjusting bolt is rotatably connected to a tensioning wheel.

[0021] As a further improvement, the telescopic structure is a cylinder.

[0022] As a further improvement, the feeding mechanism is provided with at least four sets.

[0023] As a further improvement, the material pulling mechanism includes a sliding seat slidably mounted on the frame, a driving structure for driving the sliding seat to move is fixedly installed on the sliding seat, and a gripping structure for gripping the pipe is also provided on the sliding seat.

[0024] As a further improvement, the drive structure is a drive motor, the output shaft of which is connected to a transmission gear, and a rack that meshes with the transmission gear is fixedly mounted on the frame.

[0025] As a further improvement, the gripping structure includes two grippers disposed below the sliding seat, wherein at least one gripper is slidably mounted on the sliding seat, so that the two grippers can move closer or further apart from each other. The sliding seat is also provided with a translation structure, which is connected to the gripper slidably mounted on the sliding seat to drive the gripper to translate.

[0026] As a further improvement, the feeding mechanism includes several parallel feeding conveyor belts, the ends of which are connected to receiving plates, and the receiving plates have receiving grooves for limiting the movement of the pipes.

[0027] As a further improvement, a lifting mechanism for supporting the pipe is also provided between the receiving chuck and the end chuck.

[0028] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0029] 1. This utility model achieves the goal of feeding and processing long-length pipes by improving the feeding mechanism. The use of pneumatic cylinders instead of hydraulic cylinders not only reduces the production cost of the equipment, but also reduces the maintenance cost of the equipment.

[0030] 2. For round pipes, the biggest problem with the swing arm feeding mechanism is that it may cause the pipe to fall off. This utility model solves this problem by setting a balance sprocket and a chain to ensure that the positioning groove of the support base always faces upward, thus achieving smooth lifting and lowering of the pipe.

[0031] 3. The material pulling mechanism of this utility model replaces the complex fourth chuck. The structure of the material pulling mechanism is simple, which not only reduces the investment cost of the equipment, but also makes material pulling and unloading more convenient and faster, thereby improving the overall production efficiency of the equipment.

[0032] 4. This utility model significantly improves pipe production efficiency through equipment improvements and process optimization. This utility model does not simply store pipes in the preparation area for use; instead, it performs loading and receiving operations simultaneously with laser pipe cutting, allowing subsequent pipes to be moved to the cutting position immediately after the previous pipe is cut.

[0033] Furthermore, the various steps of this utility model are closely coordinated. For example, when the pulling mechanism pulls the remaining pipe, the receiving chuck will approach the pushing cylinder and take over from the pushing cylinder, so that the next pipe can quickly reach the working position for processing, thereby improving production efficiency. Attached Figure Description

[0034] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0035] Figure 1 This is a schematic diagram of the structure of the three-disc laser tube cutting device of this utility model;

[0036] Figure 2 This is a front view of the three-disc laser tube cutting device of this utility model;

[0037] Figure 3 This is a schematic diagram of the feeding mechanism of the three-disc laser tube cutting equipment of this utility model;

[0038] Figure 4 This is a schematic diagram of the feeding mechanism of the three-disc laser tube cutting equipment of this utility model;

[0039] Figure 5 This is a schematic diagram of the pusher chuck of the three-chuck laser tube cutting equipment of this utility model;

[0040] Figure 6 This is a schematic diagram of the material feeding mechanism of the three-disc laser tube cutting equipment of this utility model;

[0041] Figure 7 This is a schematic diagram of the receiving chuck of the three-chuck laser tube cutting equipment of the present invention.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Feeding mechanism; 101. Feeding conveyor belt; 102. Receiving plate; 2. Push chuck; 3. Frame; 4. Loading mechanism; 401. Mounting base; 402. Loading bar; 403. Balance sprocket; 404. Chain; 405. Tensioning sprocket; 406. Tensioning seat; 407. Support base; 408. Telescopic structure; 5. Laser cutting mechanism; 6. End chuck; 7. Pulling mechanism; 701. Sliding seat; 702. Drive motor; 703. Translation structure; 704. Gripper; 8. Receiving chuck. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0045] In existing technologies, some companies introduce robotic arms for pipe loading to accelerate the construction of fully automated workshops, but the investment cost is too high for most companies to afford. Therefore, some alternative solutions have emerged, which use a combination of horizontal feeding and vertical lifting structures to complete the loading action.

[0046] To improve production efficiency, we decided to use long pipes as raw materials in the future. One pipe can be processed into 3-4 finished pipes, avoiding frequent loading and unloading operations that would affect processing efficiency. However, the increased length and weight of the raw materials necessitate multiple lifting mechanisms to operate simultaneously. Our existing small-sized cylinders are insufficient, requiring either hydraulic cylinders or larger-sized cylinders. The former incurs higher initial and maintenance costs, while the latter renders our current cylinders unusable, necessitating the replacement of the air compressor and generating noise and other issues. This approach fails to meet the requirements of reducing manufacturing and maintenance costs while improving production efficiency.

[0047] To address the aforementioned issues, we have comprehensively optimized the equipment from both the equipment and production process perspectives.

[0048] Regarding equipment, there are many existing feeding mechanisms, but they are either too expensive or unsuitable for feeding long pipes. To reduce equipment costs, we adopted a relatively labor-saving swing arm structure. However, for round pipes, the swing arm structure is prone to causing the pipe to fall off, leading to safety accidents. Therefore, we implemented a balance sprocket and chain. When the load-bearing rod rotates, the support base rotates relative to the load-bearing rod, ensuring that the positioning groove of the support base always faces upwards, allowing the pipe to rise and fall smoothly. By adopting the feeding mechanism of this invention, the goal of feeding long pipes can be achieved using a small-sized cylinder.

[0049] Secondly, the design of the fourth chuck was eliminated, and the four chucks were improved to three chucks. The eliminated fourth chuck was replaced by a material pulling mechanism designed by us, which further reduced manufacturing costs.

[0050] The equipment improvements have enabled the optimization of the production process. Firstly, long pipes can be cut into 3-4 finished pipes at a time, and for some shorter finished pipes, the number of pipes cut into shape at one time is even greater, thus greatly improving production efficiency.

[0051] Secondly, the optimization of the process ensures close coordination between each step. During laser cutting, the preceding mechanisms can operate synchronously. Once the previous tube is cut, the next tube can quickly reach the work position for processing, thus improving production efficiency.

[0052] After introducing the basic principles of this utility model, various non-limiting embodiments of this utility model are described in detail below. Any quantity of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0053] The principles and spirit of this utility model will be explained in detail below with reference to several representative embodiments.

[0054] Example 1 of the three-chuck laser tube cutting device provided by this utility model:

[0055] like Figures 1-6 As shown, the three-chuck laser tube cutting equipment includes a frame 3, a pusher chuck 2, a receiving chuck 8, an end chuck 6, a laser cutting mechanism 5, a pulling mechanism 7, a feeding mechanism 1, a loading mechanism 4, and a unloading mechanism. It also includes supporting facilities such as an air compressor, a water chiller, a laser, a voltage regulator, and an electrical cabinet.

[0056] like Figure 5 As shown, the pusher chuck 2 is slidably mounted on the frame 3. The pusher chuck 2 can move horizontally on the frame 3 and is used to grip and push the pipe. Four sets of clamping cylinders are distributed circumferentially on the pusher chuck 2 to complete the positioning and gripping of the pipe. The pusher chuck 2 moves on the frame 3 by means of a servo motor. The output shaft of the servo motor is connected to a gear, which meshes with a rack on the frame 3. The receiving chuck 8 below also moves in this manner.

[0057] like Figure 7As shown, the receiving chuck 8 is slidably mounted on the frame 3. The receiving chuck 8 can move horizontally on the frame 3. The receiving chuck 8 has a rotatable gripping chuck, and the gripping chuck has a through hole for the pipe to pass through. The receiving chuck 8 is prior art, mainly including a traveling part for moving the receiving chuck 8 as a whole, a gripping part for gripping the pipe (i.e., the gripping chuck), and a driving part for driving the gripping chuck to rotate. In addition, the gripping chuck is also provided with rollers to assist the pipe's movement, so as to reduce the friction of the pipe's movement. The receiving chuck 8 is prior art and has not been improved in this invention, so its detailed structure will not be described here.

[0058] The end chuck 6 is installed at the end of the receiving chuck 8 away from the pushing chuck 2, and the structure of the end chuck 6 is the same as that of the receiving chuck 8.

[0059] The laser cutting mechanism 5 is located on the side of the end chuck 6 away from the receiving chuck 8. The laser cutting mechanism 5 is used to cut pipes.

[0060] like Figure 6 As shown, the material pulling mechanism 7 is located on the side of the laser cutting mechanism 5 away from the end chuck 6. The material pulling mechanism 7 can move horizontally on the frame 3 to pull the tube.

[0061] The material pulling mechanism 7 includes a sliding seat 701 that is slidably mounted on the frame 3. The sliding seat 701 is fixedly equipped with a driving structure for moving the sliding seat 701. The sliding seat 701 is also provided with a gripping structure for gripping the pipe.

[0062] The drive structure is a drive motor 702, and a transmission gear is connected to the output shaft of the drive motor 702. The transmission gear meshes with the rack.

[0063] The gripping structure includes two grippers 704 disposed below the sliding seat 701, wherein at least one gripper 704 is slidably mounted on the sliding seat 701, so that the two grippers 704 can move closer to or further away from each other. The sliding seat 701 is also provided with a translation structure 703, which is connected to the gripper 704 slidably mounted on the sliding seat 701 to drive the gripper 704 to translate.

[0064] Feeding mechanism 1 is used for horizontal conveying of pipes, and feeding mechanism 1 is located on the front side of frame 3;

[0065] The feeding mechanism 1 includes several parallel feeding conveyor belts 101, and the end of each feeding conveyor belt 101 is connected to a receiving plate 102. The receiving plate 102 has a receiving groove for limiting the pipe material.

[0066] The feeding mechanism 4 is used to lift the pipe material to the pipe material. Its axis coincides with the axis of the pusher chuck 2. The feeding mechanism 4 is fixedly installed at the front end of the frame 3.

[0067] The feeding mechanism 4 includes a mounting base 401 fixedly connected to the frame 3. A hinge shaft is fixedly connected to the mounting base 401, and a load-bearing rod 402 is hinged to the hinge shaft. The other end of the load-bearing rod 402 is rotatably fitted with a rotating shaft parallel to the hinge shaft. A support base 407 is fixedly connected to the rotating shaft. The support base 407 has a positioning groove for placing pipes. The positioning groove is generally V-shaped and can adapt to various types of pipes. A telescopic structure 408 is also hinged to the mounting base 401. The other end of the telescopic structure 408 is hinged to the load-bearing rod 402. In this embodiment, the telescopic structure 408 is a cylinder.

[0068] In other embodiments, protective pads may be provided inside or on both sides of the positioning groove to facilitate replacement after wear.

[0069] Both the hinge shaft and the rotating shaft are fixedly connected to balance sprockets 403, and a chain 404 is wound between the two balance sprockets 403 so that the opening of the positioning groove of the support base 407 always faces upward during the lifting and lowering process.

[0070] A tensioning seat 406 is also fixedly installed on the load-bearing rod 402. The tensioning seat 406 has a rectangular hole, and an adjusting bolt is installed in the rectangular hole. The adjusting bolt is rotatably connected to a tensioning wheel. Specifically, the tension can be adjusted by adjusting the height of the tensioning seat 406.

[0071] In this embodiment, the feeding mechanism 4 is provided with four sets.

[0072] The unloading mechanism has the same structure as the loading mechanism 4. In this embodiment, the unloading mechanism is provided in three sets. During cutting, the unloading mechanism supports the pipe and after cutting, it transfers the pipe to the unloading conveyor belt.

[0073] A lifting mechanism for supporting the pipe is also provided between the receiving chuck 8 and the end chuck 6. The lifting mechanism consists of a lifting cylinder and a trapezoidal groove.

[0074] This embodiment also provides a tube cutting process using the aforementioned three-chuck laser tube cutting equipment, including the following steps:

[0075] S1. Feeding: The feeding mechanism 1 conveys the pipe to the receiving plate 102 at the end and it falls into the receiving trough;

[0076] S2. Feeding: The telescopic structure 408 extends, and the load-bearing rod 402 rotates around the hinge axis, causing the support seat 407 to rise. During the rising process, it lifts the pipe in the receiving groove until the axis of the pipe coincides with the axis of the pusher chuck 2, at which point the telescopic structure 408 stops moving.

[0077] The support base 407 is rotatably mounted on the load-bearing rod 402, and the angle of the support base 407 is adjusted by two balance sprockets 403 and chain 404 so that the positioning groove always faces upward.

[0078] S3. Receiving material: The pusher chuck 2 moves toward the pipe and grabs one end of the pipe; at the same time, the two sets of feeding mechanisms 4 close to the pusher chuck 2 descend and reset, providing clearance for the pusher chuck 2.

[0079] S4. Pushing material: The pushing chuck 2 continues to move toward the receiving chuck 8, pushing the pipe to move. The pipe passes through the receiving chuck 8 until it moves above the lifting mechanism.

[0080] S5. Pre-processing: The pusher chuck 2 continues to move a set distance towards the end chuck 6 and then stops. The set distance is determined based on the excess allowance of the pipe. Generally, the pipe will have a certain allowance. For example, if a 12-meter pipe is cut into three 4-meter pipes, the raw material pipe is generally 12.1 meters long. The purpose of pre-processing is to cut the raw material to the required length.

[0081] The pipe passes through the end chuck 6, and the remaining feeding mechanism 4 descends. The receiving chuck 8 moves to the side of the pushing chuck 2 and takes over from the pushing chuck 2 to grab the end of the pipe.

[0082] After the receiving chuck 8 and the end chuck 6 grab the pipe, they rotate synchronously. At the same time, the lifting mechanism descends, and the laser cutting mechanism 5 starts to cut the pipe and remove the excess material.

[0083] S6. Cut the pipe: The receiving chuck 8 moves to the end chuck 6 by the length of a finished pipe, and the laser cutting mechanism 5 cuts the pipe; at the same time, the pushing chuck 2 returns to its initial position.

[0084] S7. When the length of the pipe is cut to the length of the remaining two finished pipes, repeat steps S1-S3;

[0085] S8. When the length of the finished pipe remains, the pulling mechanism 7 pulls the pipe so that it passes through the end chuck 6, and repeats step S4, and then the operation is repeated.

[0086] While this specification has shown and described various embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention. The appended claims are intended to define the scope of protection of the present invention and therefore cover the modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. A three-chuck laser tube cutting device, characterized in that, include: rack (3); The pusher chuck (2) is slidably mounted on the frame (3). The pusher chuck (2) can move horizontally on the frame (3). The pusher chuck (2) is used to grab and push the pipe to move. The receiving chuck (8) is slidably mounted on the frame (3). The receiving chuck (8) can move horizontally on the frame (3). The receiving chuck (8) has a rotatable gripping chuck and the gripping chuck has a through hole through which the pipe can pass. The end chuck (6) is installed at the end of the receiving chuck (8) away from the pusher chuck (2). The structure of the end chuck (6) is the same as that of the receiving chuck (8). The laser cutting mechanism (5) is located on the side of the end chuck (6) away from the receiving chuck (8). The laser cutting mechanism (5) is used to cut pipes. The material pulling mechanism (7) is located on the side of the laser cutting mechanism (5) away from the end chuck (6). The material pulling mechanism (7) can move horizontally on the frame (3) to pull the pipe. Feeding mechanism (1) is used for horizontal conveying of pipes. The feeding mechanism (1) is located on the front side of the frame (3). The feeding mechanism (4) is used to lift the tube material to the tube material. Its axis coincides with the axis of the pusher chuck (2). The feeding mechanism (4) is fixedly installed at the front end of the frame (3). The feeding mechanism (4) includes a mounting base (401) fixedly connected to the frame (3), a hinge shaft is fixedly connected to the mounting base (401), a load-bearing rod (402) is hinged to the hinge shaft, the other end of the load-bearing rod (402) is rotatably fitted with a rotating shaft parallel to the hinge shaft, a support base (407) is fixedly connected to the rotating shaft, the support base (407) is provided with a positioning groove for placing the pipe, and a telescopic structure (408) is also hinged to the mounting base (401), the other end of the telescopic structure (408) is hinged to the load-bearing rod (402); Both the hinge shaft and the rotating shaft are fixedly connected to a balance sprocket (403), and a chain (404) is wound between the two balance sprockets (403) so that the opening of the positioning groove of the support base (407) always faces upward during the lifting and lowering process.

2. The three-chuck laser tube cutting device according to claim 1, characterized in that: A tensioning seat (406) is also fixedly installed on the load-bearing rod (402). A rectangular hole is provided on the tensioning seat (406), and an adjusting bolt is provided in the rectangular hole. The adjusting bolt is rotatably connected to the tensioning wheel.

3. The three-chuck laser tube cutting device according to claim 1, characterized in that: The telescopic structure (408) is a cylinder.

4. The three-chuck laser tube cutting device according to any one of claims 1 to 3, characterized in that: The feeding mechanism (4) has at least four sets.

5. The three-chuck laser tube cutting device according to claim 1, characterized in that: The material pulling mechanism (7) includes a sliding seat (701) slidably mounted on the frame (3). The sliding seat (701) is fixedly equipped with a driving structure for moving the sliding seat (701). The sliding seat (701) is also provided with a gripping structure for gripping the pipe.

6. The three-chuck laser tube cutting device according to claim 5, characterized in that: The drive structure is a drive motor (702), and a transmission gear is connected to the output shaft of the drive motor (702). A rack that cooperates with the transmission gear is fixedly installed on the frame (3).

7. The three-chuck laser tube cutting device according to claim 5, characterized in that: The gripping structure includes two grippers (704) disposed below the sliding seat (701), wherein at least one gripper (704) is slidably mounted on the sliding seat (701) so that the two grippers (704) can move closer to or further away from each other. The sliding seat (701) is also provided with a translation structure (703), which is connected to the gripper (704) slidably mounted on the sliding seat (701) to drive the gripper (704) to translate.

8. The three-chuck laser tube cutting device according to claim 1, characterized in that: The feeding mechanism (1) includes several parallel feeding conveyor belts (101), and the end of the feeding conveyor belt (101) is connected to a receiving plate (102). The receiving plate (102) has a receiving groove for limiting the pipe.

9. The three-chuck laser tube cutting device according to claim 1, characterized in that: A lifting mechanism for supporting the pipe is also provided between the receiving chuck (8) and the end chuck (6).

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