A metal laser cutting device

Abstract

The application discloses a metal laser cutting device and relates to the field of laser cutting, and solves the problem that the end of a long pipe is easily adhered to a positioning baffle after the long pipe is cut by an existing laser cutting device.The metal laser cutting device comprises a machining platform and a rotating seat, the top of the machining platform is provided with a supporting seat, a metal pipe is arranged between the supporting seat and the rotating seat, the top of the rotating seat is fixedly provided with a mounting frame, and one end of the mounting frame is provided with a laser cutting head; the device further comprises a material positioning mechanism which is used for positioning and cutting the end of the metal pipe and is installed on the top of the machining platform; through the material positioning mechanism, the outer side of the metal pipe can be clamped and positioned when the rotating seat and the supporting seat convey the metal pipe, the laser cutting head can stably cut the end of the metal pipe, and the cut metal pipe is loosened after cutting, so that the end of the metal pipe does not need to be pressed against, and the problem that the cutting surface is adhered is prevented, thereby achieving the effect of stable cutting.

Description

Technical Field

[0001] This invention relates to the field of laser cutting, specifically to a metal laser cutting device. Background Technology

[0002] Laser cutting is an advanced processing technology that uses a high-power-density laser beam to cut materials. The laser beam emitted by the laser is focused into a high-power-density beam by the optical path system and irradiates the surface of the workpiece, causing the material to quickly reach its ignition point or melting point. Then, a high-speed airflow coaxial with the beam blows away the molten or vaporized material, thus completing the cutting.

[0003] Metal pipes are typically processed using laser cutting. A sliding block transports the metal pipe, moving the end of a long pipe below the laser cutting head. The laser cutting head, in conjunction with the sliding block, cuts the long pipe into multiple short pipes. However, during the cutting process, as the connection between the short and long pipes narrows, the connection point can break or bend under gravity, resulting in an uneven cut surface. Existing laser cutting devices use a positioning baffle at the end of the long pipe to provide support for the short pipes during cutting. However, after the short pipes move up and down on the positioning baffle, the cut end of the long pipe comes into contact with it. Due to the high temperature at the end of the cut long pipe, the end tends to stick to the positioning baffle, making it difficult for the cut short pipes to fall and exit, thus increasing the processing difficulty. Summary of the Invention

[0004] The purpose of this invention is to provide a metal laser cutting device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A metal laser cutting device includes: a processing platform and a rotating base fixedly installed on the top of the processing platform; a support base is provided on the top of the processing platform; a metal tube is disposed between the support base and the rotating base; a mounting frame is fixedly installed on the top of the rotating base; and a laser cutting head is mounted on one end of the mounting frame. The device further includes: a material positioning mechanism for positioning and cutting the end of the metal tube, the material positioning mechanism being installed on the top of the processing platform; a material receiving mechanism for safely receiving the cut metal tube, the material receiving mechanism being installed on the top of the processing platform; and a distance adjustment mechanism for positioning metal tubes of various sizes, the distance adjustment mechanism being installed on the outside of the metal tube.

[0007] Preferably, the material setting mechanism includes two symmetrically fixed mounting vertical plates on the top of the processing platform. Two symmetrically distributed mounting boxes are fixedly installed between the two mounting vertical plates. Two symmetrically distributed moving blocks are slidably mounted on the inner side of each mounting box via an optical axis. An anti-directional screw is rotatably mounted on the inner side of each mounting box. The two ends of the anti-directional screw are threadedly assembled with the two moving blocks respectively. A mounting support plate is fixedly installed at the bottom of each moving block. An arc-shaped clamping plate is fixedly installed at the end of the mounting support plate away from the moving block. A drive motor is disposed above the processing platform. The drive motor is fixedly installed on the outer side of an adjacent mounting vertical plate. The output end of the drive motor is fixedly connected to an adjacent anti-directional screw. A synchronous belt is rotatably mounted between the two anti-directional screws.

[0008] Preferably, the receiving mechanism includes four movable rods symmetrically arranged between the two mounting vertical plates. The movable rods slide through the adjacent mounting vertical plates. A pull block is fixedly installed at the end of the movable rod away from the mounting vertical plate. A mounting seat is provided above the movable rod and is fixedly installed on the outside of the mounting vertical plate. Two symmetrically distributed rocker arms are hinged to the outside of the mounting seat. Both ends of the rocker arms have elongated grooves. Two symmetrically distributed first sliding rods are fixedly installed on the outside of the pull block. The first sliding rods are slidably installed in the elongated grooves of the rocker arms. Two symmetrically distributed pull plates are fixedly installed on the side of the arc-shaped clamping plate near the mounting vertical plate. A second sliding rod is fixedly installed at the end of the pull plate away from the arc-shaped clamping plate. The second sliding rod is slidably installed in the elongated groove at the end of the rocker arm away from the first sliding rod. A receiving block is provided at the end of the pull block away from the movable rod. A buffer assembly for buffering the falling metal tube is also provided between the pull block and the receiving block.

[0009] Preferably, the adjusting mechanism includes two threaded cylinders symmetrically fixedly installed at both ends of the arc-shaped clamp. An adjusting screw is threaded on the inner side of each threaded cylinder. A circular block is fixedly installed at the end of the adjusting screw near the metal tube. A ball is fixedly installed on the side of the circular block away from the adjusting screw. The outer side of the ball is made of rubber. A handwheel is fixedly installed at the end of the adjusting screw away from the circular block. A rotating ring is rotatably installed on both the handwheel and the side of the circular block near the adjusting screw. Two symmetrically distributed scales are fixedly installed between the two rotating rings. A sliding cavity is provided on the outer side of the threaded cylinder for the scales to slide and be limited.

[0010] Preferably, a drive screw is rotatably mounted on the inner side of the processing platform, a threaded slide is fixedly mounted on the bottom of the support base, and the threaded slide is threadedly assembled with the drive screw. A guide groove is provided on the inner side of the processing platform for the threaded slide to be limited and slid.

[0011] Preferably, an exhaust air box is fixedly installed on the top of the mounting frame, and an air intake hood is fixedly installed on the outside of the laser cutting head. The air intake hood is connected to the exhaust air box through an exhaust pipe.

[0012] Preferably, a support box is fixedly installed between the two mounting boxes, and the timing belt is located inside the support box.

[0013] Preferably, the buffer assembly includes a sleeve fixedly installed on the side of the pull block near the receiving block, a spring fixedly installed between the bottom of the receiving block and the top of the sleeve, a copper tube fixedly installed on the inner side of the sleeve, a guide rod fixedly installed on the bottom of the receiving block, the guide rod being disposed on the inner side of the copper tube, and a magnetic ring slidably installed on the outer side of the guide rod on the inner side of the copper tube.

[0014] Preferably, the top of the receiving block is made of rubber.

[0015] Preferably, a support cylinder is slidably mounted on the outer side of the movable rod, and the support cylinder is fixedly mounted on the outer side of the mounting vertical plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The present invention, through a material positioning mechanism, can clamp and position the outer side of the metal tube when the rotating seat and the support seat are conveying the metal tube, so that the laser cutting head can smoothly cut the end of the metal tube, and release the cut metal tube after the cutting is completed, without having to hold the end of the metal tube, thus preventing the problem of adhesion of the cut surface, thereby achieving a smooth cutting effect.

[0018] 2. The present invention, through the material receiving mechanism, can move the material receiving blocks on the four movable rods to below the cut metal tube by swinging the rocker arm when the four arc-shaped clamps are far from the outside of the metal tube. This facilitates catching the metal tube, provides a buffer for the falling metal tube, and prevents collisions during continuous cutting of the metal tube, thereby achieving the effect of safe material discharge.

[0019] 3. The present invention uses an adjustable distance mechanism to enable the arc-shaped clamping plate to abut against the outside of the metal tube through two abutment balls. The position of the abutment balls can be adjusted by rotating the adjusting screw and moving it along the inside of the threaded cylinder. This allows the arc-shaped clamping plate to clamp and position metal tubes of more sizes through the abutment balls, thereby improving its applicability for metal tube cutting. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2This is a schematic diagram of the mounting bracket and laser cutting head structure in this invention;

[0022] Figure 3 This is a schematic diagram of the mounting box and support box structure in this invention;

[0023] Figure 4 This is a schematic diagram of the arc-shaped clamping plate and mounting support plate structure in this invention;

[0024] Figure 5 This is a schematic diagram of the mounting base and support cylinder structure in this invention;

[0025] Figure 6 This is a schematic diagram of the rocker arm and movable rod structure in this invention;

[0026] Figure 7 for Figure 6 Enlarged structural diagram of area A in the middle;

[0027] Figure 8 This is a schematic diagram of the structure of the ball and scale in this invention.

[0028] In the diagram: 1. Processing platform; 2. Rotary seat; 3. Support seat; 4. Metal tube; 5. Mounting bracket; 6. Laser cutting head; 7. Mounting vertical plate; 8. Mounting box; 9. Moving block; 10. Counter-rotating screw; 11. Mounting support plate; 12. Arc-shaped clamp; 13. Drive motor; 14. Synchronous belt; 15. Movable rod; 16. Pull block; 17. Mounting seat; 18. Rocker arm; 19. First sliding rod; 20. Pull plate ; 21. Second slide bar; 22. Adjusting screw; 23. Circular block; 24. Abutting ball; 25. Handwheel; 26. Rotary ring; 27. Scale; 28. Drive screw; 29. ​​Threaded slide block; 30. Exhaust air box; 31. Air inlet hood; 32. Support box; 33. Sleeve; 34. Spring; 35. Copper tube; 36. Guide rod; 37. Magnetic ring; 38. Support cylinder; 39. Receiving block; 40. Threaded cylinder. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1-8The diagram shows a metal laser cutting device, including a processing platform 1 and a rotating base 2 fixedly mounted on the top of the processing platform 1. A support base 3 is provided on the top of the processing platform 1, and a metal tube 4 is positioned between the support base 3 and the rotating base 2. The rotating base 2 cooperates with the support base 3 to transport and rotate the metal tube 4. A mounting frame 5 is fixedly mounted on the top of the rotating base 2, and a laser cutting head 6 is mounted on one end of the mounting frame 5 for cutting the metal tube 4. A drive screw 28 is rotatably mounted on the inner side of the processing platform 1, and a threaded slide 29 is fixedly mounted on the bottom of the support base 3, with the threaded slide 29 threadedly assembled with the drive screw 28. An opening for the threaded slide is provided on the inner side of the processing platform 1. The guide groove with limit sliding 29 allows the drive screw 28 to drive the support base 3 to move along the top of the processing platform 1 through the threaded slide 29, which facilitates the delivery of the end part of the metal tube 4 to the bottom of the laser cutting head 6. An exhaust air box 30 is fixedly installed on the top of the mounting bracket 5, and an air inlet hood 31 is fixedly installed on the outside of the laser cutting head 6. The air inlet hood 31 is connected to the exhaust air box 30 through the exhaust pipe, so that the exhaust air box 30 can draw in the fumes generated when the laser cutting head 6 cuts the metal tube 4 through the air inlet hood 31, which makes it easier for the operator to observe the cut of the metal tube 4. It also includes a material positioning mechanism for positioning and cutting the end of the metal tube 4. The material positioning mechanism is installed on the top of the processing platform 1.

[0031] The material positioning mechanism includes two symmetrically fixed mounting vertical plates 7 on the top of the processing platform 1. Two symmetrically distributed mounting boxes 8 are fixedly installed between the two mounting vertical plates 7. Two symmetrically distributed moving blocks 9 are slidably mounted on the inner side of each mounting box 8 via an optical axis. A counter-rotating screw 10 is rotatably mounted on the inner side of each mounting box 8. The two ends of the counter-rotating screw 10 are threadedly assembled with the two moving blocks 9, respectively. When the counter-rotating screw 10 rotates, it can drive the two moving blocks 9 to move closer or further apart along the outer side of the optical axis. A mounting support plate 11 is fixedly installed at the bottom of each moving block 9. An arc-shaped clamping plate 12 is fixedly installed at the end of the mounting support plate 11 away from the moving block 9. When the moving block 9 moves, the mounting support plate 11 can drive the arc-shaped clamping plate 12 to approach the outer side of the metal tube 4, achieving clamping and positioning of the metal tube 4 for cutting. The end of the tube 4 is provided with positioning to improve the stability of cutting the metal tube 4. A drive motor 13 is set above the processing platform 1. The drive motor 13 is fixedly installed on the outside of the adjacent mounting vertical plate 7. The output end of the drive motor 13 is fixedly connected to the adjacent opposite screw 10, so that the drive motor 13 can drive the corresponding opposite screw 10 to rotate. A synchronous belt 14 is rotatably installed between the two opposite screws 10. When the drive motor 13 drives the corresponding opposite screw 10 to rotate, the opposite screw 10 can drive the other opposite screw 10 to rotate synchronously through the synchronous belt 14, so as to realize the synchronous movement of the four arc-shaped clamps 12. A support box 32 is fixedly installed between the two mounting boxes 8. The synchronous belt 14 is located inside the support box 32, which provides protection for the synchronous belt 14 and ensures the smooth transmission of the synchronous belt 14 to the two opposite screws 10.

[0032] Example 2: Please refer to Figures 3-7This embodiment further illustrates Example 1. The receiving mechanism shown in the figure includes four movable rods 15 symmetrically arranged between two mounting vertical plates 7. The movable rods 15 slide through adjacent mounting vertical plates 7. A support cylinder 38 is slidably installed on the outer side of the movable rod 15. The support cylinder 38 is fixedly installed on the outer side of the mounting vertical plate 7 to improve the stability of the movement of the movable rod 15. A pull block 16 is fixedly installed on the end of the movable rod 15 away from the mounting vertical plate 7. A limit block is provided on the end of the movable rod 15 away from the pull block 16 to limit the movement of the movable rod 15. A mounting seat 17 is provided above the movable rod 15. The mounting seat 17 is fixedly installed on the outer side of the mounting vertical plate 7. A hinged assembly is provided on the outer side of the mounting seat 17. Two symmetrically distributed rocker arms 18 are provided, each with a long slot at both ends. Two symmetrically distributed first sliding rods 19 are fixedly installed on the outer side of the pull block 16. The first sliding rods 19 are slidably installed in the long slots of the rocker arms 18. When the end of the rocker arm 18 away from the first sliding rod 19 swings with the mounting base 17 as the fulcrum, it can pull the pull block 16 to move through the first sliding rods 19, causing the pull block 16 to drive the movable rod 15 to move horizontally. Two symmetrically distributed pull plates 20 are fixedly installed on the side of the arc-shaped clamping plate 12 near the mounting vertical plate 7. A second sliding rod 21 is fixedly installed on the end of the pull plate 20 away from the arc-shaped clamping plate 12. The second sliding rod 21 is slidably installed in the long slot of the end of the rocker arm 18 away from the first sliding rod 19. When the arc-shaped clamp 12 moves, the second slide bar 21 on the pull plate 20 can pull the rocker arm 18 to swing around the mounting base 17 as the fulcrum, thereby moving the movable rod 15. A receiving block 39 is provided at the end of the pull block 16 away from the movable rod 15. When the four movable rods 15 move closer to the middle position of the two mounting vertical plates 7, the four receiving blocks 39 can move to the bottom of the metal tube 4, so that the four receiving blocks 39 can catch the cut metal tube 4. A buffer assembly for buffering the falling metal tube 4 is also provided between the pull block 16 and the receiving block 39. The buffer assembly includes a sleeve 33 fixedly installed on the side of the pull block 16 near the receiving block 39. The bottom of the receiving block 39 and the top of the sleeve 33 are fixedly installed. A spring 34 provides cushioning for the contact between the receiving block 39 and the metal tube 4. A copper tube 35 is fixedly installed on the inner side of the sleeve 33. A guide rod 36 is fixedly installed on the bottom of the receiving block 39. The guide rod 36 is located on the inner side of the copper tube 35. A magnetic ring 37 is fixedly installed on the outer side of the guide rod 36 and slidably installed on the inner side of the copper tube 35. The electromagnetic damping characteristics between the magnetic ring 37 and the copper tube 35 are used to decelerate the movement of the receiving block 39 and prevent the spring 34 from rebounding. The top of the receiving block 39 is made of rubber to increase the friction between the receiving block 39 and the metal tube 4. A receiving box located between two mounting vertical plates 7 is installed on the top of the processing platform 1 to store the cut metal tube 4.

[0033] Example 3: Please refer to Figure 4 and Figure 8This embodiment further illustrates other embodiments. The adjusting mechanism shown in the figure includes two threaded cylinders 40 symmetrically fixed at both ends of the arc-shaped clamping plate 12. An adjusting screw 22 is threaded onto the inner side of each threaded cylinder 40. Rotating the adjusting screw 22 allows movement along the inner side of the threaded cylinder 40. A circular block 23 is fixedly installed at the end of the adjusting screw 22 near the metal tube 4. A ball bearing 24 is fixedly installed on the side of the circular block 23 away from the adjusting screw 22. The outer side of the ball bearing 24 is made of rubber, allowing the arc-shaped clamping plate 12 to press against the outer side of the metal tube 4 via the two balls bearing 24. Adjusting the position of the balls bearing 24 by adjusting the adjusting screw 22 allows for adjustment of the distance between the two balls bearing 24. More metal tubes 4 of various sizes are clamped and positioned. A handwheel 25 is fixedly installed at the end of the adjusting screw 22 away from the circular block 23 for rotating the adjusting screw 22. A rotating ring 26 is rotatably installed on the side of the handwheel 25 and the circular block 23 near the adjusting screw 22. Two symmetrically distributed scales 27 are fixedly installed between the two rotating rings 26. A sliding cavity is opened on the outer side of the threaded cylinder 40 for the scales 27 to slide and limit their movement. When the adjusting screw 22 rotates, it can push the scales 27 to move through the rotating rings 26. The operator can obtain the moving distance of the abutment ball 24 according to the scales 27, which facilitates the precise adjustment of the position of multiple abutment balls 24.

[0034] Working principle: First, the operator starts the support base 3 and the rotating base 2, so that the rotating base 2 cooperates with the support base 3 to transport the long metal tube 4 towards the laser cutting head 6. The end of the metal tube 4 moves between the two mounting vertical plates 7. The operator starts the drive motor 13, so that the drive motor 13 drives the corresponding counter-rotating screw 10 to rotate. This counter-rotating screw 10 drives another counter-rotating screw 10 to rotate synchronously through the synchronous belt 14. The counter-rotating screw 10 drives the two corresponding moving blocks 9 to move closer to each other along the outer side of the optical axis. The moving blocks 9 are connected by the mounting support plate 1. 1. The curved clamping plates 12 move synchronously, causing the two abutment balls 24 on the curved clamping plates 12 to abut against the outside of the metal tube 4, thus clamping and positioning the cutting part of the metal tube 4. Then, the rotating seat 2 drives the metal tube 4 to rotate, and the operator starts the laser cutting head 6. Under the clamping and positioning of the metal tube 4 by the abutment balls 24 on the four curved clamping plates 12, the laser cutting head 6 smoothly cuts the metal tube 4. Then, the operator starts the drive motor 13 again, causing the drive motor 13 to drive the corresponding anti-directional screw 10 to rotate in the opposite direction, and the curved clamping plates 12 can then rotate in the opposite direction. As the cut metal tube 4 falls away from the metal tube 4, it is pulled downwards by gravity. Simultaneously, the arc-shaped clamp 12 moves the second slide rod 21 synchronously via the pull plate 20, causing the second slide rod 21 to move along the long groove on the rocker arm 18. The second slide rod 21 can push the rocker arm 18 to swing around the mounting base 17 as a fulcrum. The other end of the rocker arm 18 pulls the first slide rod 19 to move, causing the first slide rod 19 to pull the movable rod 15 horizontally along the inner side of the support cylinder 38 via the pull block 16. The pull block 16 drives the receiving block 39 to move to the cutting position via the sleeve 33. Directly below the metal tube 4, four receiving blocks 39 catch the cut metal tube 4. Thus, as the worker continues to cut the long metal tube 4, the arc-shaped clamp 12 can move away from the mounting vertical plate 7 again, and under the swing of the rocker arm 18, the receiving blocks 39 can move away from the cut metal tube 4, and the metal tube 4 can fall into the receiving box, preventing collisions between the continuously falling metal tubes 4, improving the safety of cutting the metal tube 4, thereby achieving the effect of stable cutting and safe material discharge, and improving the convenience of cutting the metal tube 4.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal laser cutting device, characterized in that, include: The processing platform (1) and the rotating seat (2) installed on the top of the processing platform (1) are provided with a support seat (3) on the top of the processing platform (1), and a metal tube (4) is provided between the support seat (3) and the rotating seat (2). A mounting bracket (5) is fixedly installed on the top of the rotating seat (2), and a laser cutting head (6) is installed at one end of the mounting bracket (5). Also includes: A material positioning mechanism is used to position and cut the end of the metal tube (4). The material positioning mechanism is installed on the top of the processing platform (1). The material positioning mechanism includes two mounting vertical plates (7) installed on the top of the processing platform (1). Two mounting boxes (8) are fixedly installed between the two mounting vertical plates (7). Two moving blocks (9) are slidably installed on the inner side of the mounting boxes (8) through an optical axis. An anti-rotation screw (10) is rotatably installed on the inner side of the mounting boxes (8). The two ends of the anti-rotation screw (10) are threadedly assembled with the two moving blocks (9) respectively. A mounting support plate (11) is fixedly installed at the bottom of the moving blocks (9). An arc-shaped clamping plate (12) is fixedly installed at one end of the mounting support plate (11). A drive motor (13) is provided above the processing platform (1). The output end of the drive motor (13) is fixedly connected to the adjacent anti-rotation screw (10). A synchronous belt (14) is rotatably installed between the two anti-rotation screws (10). A receiving mechanism is used to safely receive the cut metal tube (4). The receiving mechanism is installed on the top of the processing platform (1). The receiving mechanism includes four movable rods (15) symmetrically arranged between two mounting vertical plates (7). The movable rods (15) slide through the adjacent mounting vertical plates (7). A pull block (16) is fixedly installed at one end of the movable rod (15). A mounting seat (17) is provided above the movable rod (15). Two symmetrically distributed rocker arms (18) are hinged to the outside of the mounting seat (17). Both ends of the rocker arms (18) are provided with long slots. Two first slide rods (19) are fixedly installed on the outside of (16). The first slide rods (19) are slidably installed in the long groove of the rocker arm (18). Two pull plates (20) are fixedly installed on one side of the arc-shaped clamp (12). A second slide rod (21) is fixedly installed at one end of the pull plate (20). The second slide rod (21) is slidably installed in the long groove at the end of the rocker arm (18) away from the first slide rod (19). A receiving block (39) is provided at one end of the pull block (16). A buffer assembly for buffering the falling of the metal tube (4) is also provided between the pull block (16) and the receiving block (39). An adjusting mechanism is used to position the metal tubes (4) of various sizes. The adjusting mechanism is installed on the outside of the metal tubes (4). The adjusting mechanism includes two threaded cylinders (40) fixedly installed at both ends of the arc-shaped clamp (12). An adjusting screw (22) is threaded on the inner side of the threaded cylinder (40). A circular block (23) is fixedly installed at one end of the adjusting screw (22). A ball (24) is fixedly installed on one side of the circular block (23). The outer side of the ball (24) is made of rubber. A handwheel (25) is fixedly installed at the other end of the adjusting screw (22). A rotating ring (26) is rotatably installed on the side of the handwheel (25) and the circular block (23) near the adjusting screw (22). Two scales (27) are fixedly installed between the two rotating rings (26). A sliding cavity is provided on the outer side of the threaded cylinder (40) for the scales (27) to slide in a limited position.

2. The metal laser cutting device according to claim 1, characterized in that: The inner side of the processing platform (1) is rotatably mounted with a drive screw (28), and the bottom of the support base (3) is fixedly mounted with a threaded slide (29). The threaded slide (29) is threadedly assembled with the drive screw (28). The inner side of the processing platform (1) is provided with a guide groove for the threaded slide (29) to be limited and slid.

3. The metal laser cutting device according to claim 1, characterized in that: An exhaust box (30) is installed on the top of the mounting bracket (5), and an air intake hood (31) is installed on the outside of the laser cutting head (6). The air intake hood (31) is connected to the exhaust box (30) through an exhaust pipe.

4. The metal laser cutting device according to claim 1, characterized in that: A support box (32) is fixedly installed between the two mounting boxes (8), and the timing belt (14) is located inside the support box (32).

5. A metal laser cutting device according to claim 1, characterized in that: The buffer assembly includes a sleeve (33) installed on one side of the pull block (16), a spring (34) fixedly installed between the receiving block (39) and the sleeve (33), a copper tube (35) fixedly installed on the inner side of the sleeve (33), a guide rod (36) fixedly installed at the bottom of the receiving block (39), and a magnet ring (37) slidably installed on the outer side of the guide rod (36) and slidably installed on the inner side of the copper tube (35).

6. The metal laser cutting device according to claim 1, characterized in that: The top of the receiving block (39) is made of rubber.

7. A metal laser cutting device according to claim 1, characterized in that: A support cylinder (38) is slidably installed on the outside of the movable rod (15), and the support cylinder (38) is fixedly installed on the outside of the mounting vertical plate (7).

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