Metal laser cutting device

Abstract

The invention discloses a metal laser cutting device, relates to the field of laser cutting, and solves the problem that the end part of a long pipe is easily adhered to a positioning baffle plate after the long pipe is cut by the existing laser cutting device, the metal laser cutting device comprises a processing platform and a rotating seat, and a supporting seat is arranged at the top of the processing platform; a metal pipe is arranged between the supporting seat and the rotating seat, a mounting frame is fixedly mounted at the top of the rotating seat, and a laser cutting head is mounted at one end of the mounting frame; the material fixing mechanism is used for positioning and cutting the end part of the metal pipe, and the material fixing mechanism is mounted at the top of the processing platform; by means of the material fixing mechanism, the outer side of the metal pipe can be clamped and positioned when the metal pipe is conveyed through the rotating base and the supporting base, the laser cutting head can stably cut the end of the metal pipe, the cut metal pipe is loosened after cutting is completed, abutting against the end of the metal pipe is not needed, and the problem that the cutting face adheres is solved; therefore, the effect of stable cutting is achieved.

Description

Technical Field

[0001] The invention relates to the field of laser cutting, in particular to a metal laser cutting device. Background Art

[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 through the optical path system and irradiated to the surface of the workpiece, so that the material quickly reaches the ignition point or melting point, and then the molten or vaporized material is blown away with the help of a high-speed airflow coaxial with the beam, thereby completing the cutting.

[0003] Metal pipes are usually processed by laser cutting. The metal pipe is transported by a sliding seat, and the end of the long pipe is moved under the laser cutting head, so that the laser cutting head cooperates with the sliding seat to cut the entire long pipe into multiple short pipes. However, during the pipe cutting process, as the connection between the short pipe and the long pipe becomes smaller, the short pipe will break or bend at the connection with the long pipe under the action of gravity, resulting in an uneven cut section. The existing laser cutting device will be provided with a positioning baffle at the end of the long pipe, so that the long pipe contacts the positioning baffle to provide support for the short pipe being cut. However, after the short pipe rises and falls on the positioning baffle, the cut part of the long pipe will contact the positioning baffle. Since the temperature of the end of the long pipe after cutting is relatively high, the end is likely to adhere to the positioning baffle, making it difficult for the cut short pipe to fall and discharge, which increases the difficulty of processing. Summary of the invention

[0004] The object of the present invention is to provide a metal laser cutting device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A metal laser cutting device comprises: a processing platform and a rotating seat fixedly installed on the top of the processing platform, a support seat is arranged on the top of the processing platform, a metal tube is arranged between the support seat and the rotating seat, a mounting frame is fixedly installed on the top of the rotating seat, and a laser cutting head is installed at one end of the mounting frame; it also comprises: a material fixing mechanism for positioning and cutting the end of the metal tube, the material fixing mechanism is installed on the top of the processing platform; a material receiving mechanism for safely receiving the cut metal tube, the material receiving mechanism is installed on the top of the processing platform; a distance adjusting mechanism for positioning the metal tubes of more sizes, the distance adjusting mechanism is installed on the outside of the metal tube.

[0007] Preferably, the material fixing mechanism includes two mounting vertical plates symmetrically fixedly installed 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 installed on the inner side of the mounting box through an optical axis, a different-direction screw is rotatably installed on the inner side of the mounting box, two ends of the different-direction screw are respectively threadedly assembled with the two moving blocks, a mounting support plate is fixedly installed on the bottom of the moving block, an arc-shaped clamping plate is fixedly installed on the end of the mounting support plate away from the moving block, a driving motor is arranged above the processing platform, the driving motor is fixedly installed on the outer side of the adjacent mounting vertical plates, the output end of the driving motor is fixedly connected to the adjacent different-direction screws, and a synchronous belt is rotatably installed between the two different-direction screws.

[0008] The cam is provided with two camshafts, each of which is provided with a plurality of movable plates, each of which is provided with a plurality of movable plates, each of which is provided with a plurality of movable plates, and the movable plates are provided with a plurality of movable plates respectively.

[0009] Preferably, the distance adjustment mechanism includes two threaded barrels symmetrically fixedly installed at both ends of the arc-shaped clamping plate, the inner thread of the threaded barrel is equipped with an adjusting screw, the end of the adjusting screw close to the metal tube is fixedly installed with a circular block, the side of the circular block away from the adjusting screw is fixedly installed with a ball, the outer side of the ball is made of rubber material, a handwheel is fixedly installed at the end of the adjusting screw away from the circular block, the handwheel and the side of the circular block close to the adjusting screw are both rotatably installed with swivels, two symmetrically distributed scales are fixedly installed between the two swivels, and a sliding cavity is provided on the outer side of the threaded barrel for the scale to slide within a limited position.

[0010] Preferably, a driving screw is rotatably installed on the inner side of the processing platform, a threaded slide is fixedly installed on the bottom of the support seat, and the threaded slide is threadedly assembled with the driving screw, and a guide groove is provided on the inner side of the processing platform for the threaded slide to limit the sliding movement.

[0011] Preferably, an exhaust bellows is fixedly mounted on the top of the mounting frame, an air intake hood is fixedly mounted on the outer side of the laser cutting head, and the air intake hood is connected to the exhaust bellows via an exhaust pipe.

[0012] Preferably, a support box is fixedly installed between the two installation boxes, and the synchronous belt is located on the inner side of the support box.

[0013] Preferably, the buffer assembly includes a sleeve fixedly mounted on the side of the pulling block close to the material connecting block, a spring fixedly mounted between the bottom of the material connecting block and the top of the sleeve, a copper tube fixedly mounted on the inner side of the sleeve, a guide rod fixedly mounted on the bottom of the material connecting block, the guide rod is arranged on the inner side of the copper tube, and a magnet ring slidably mounted on the inner side of the copper tube is fixedly mounted on the outer side of the guide rod.

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

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

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention uses a material fixing mechanism to clamp and position the outer side of the metal tube when the rotating seat and the supporting 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. There is no need to press against the end of the metal tube to prevent the problem of adhesion of the cut surface, thereby achieving a smooth cutting effect.

[0018] 2. The present invention uses a material receiving mechanism, and when the four arc-shaped clamping plates are away from the outside of the metal tube, the rocker can swing to enable the material receiving blocks on the four movable rods to move to the bottom of the cut metal tube, so as to facilitate catching the metal tube and provide a buffer for the falling of the metal tube, thereby preventing collision when the metal tube is continuously cut, thereby achieving the effect of safe material discharge.

[0019] 3. The present invention uses a distance adjustment mechanism to enable the arc-shaped clamping plate to press against the outer side of the metal pipe through two balls, and can adjust the position of the balls by rotating the adjusting screw to move the adjusting screw along the inner side of the threaded barrel, so that the arc-shaped clamping plate can clamp and position metal pipes of more sizes through the balls, thereby improving the applicability of metal pipe cutting. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2It is a schematic diagram of the structure of the mounting frame and the laser cutting head in the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the installation box and the support box in the present invention;

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

[0024] Figure 5 It is a schematic diagram of the structure of the mounting seat and the supporting tube in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the rocker rod and the movable rod in the present invention;

[0026] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the middle A area;

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

[0028] In the figure: 1, processing platform; 2, rotating seat; 3, supporting seat; 4, metal pipe; 5, mounting frame; 6, laser cutting head; 7, mounting vertical plate; 8, mounting box; 9, moving block; 10, different direction screw; 11, mounting support plate; 12, arc clamping plate; 13, driving motor; 14, synchronous belt; 15, movable rod; 16, pulling block; 17, mounting seat; 18, rocker rod; 19, first slide bar; 20, pulling plate ; 21. Second slide rod; 22. Adjusting screw rod; 23. Round block; 24. Ball; 25. Hand wheel; 26. Rotating ring; 27. Scale; 28. Driving screw rod; 29. ​​Threaded slide seat; 30. Exhaust bellows; 31. Inlet hood; 32. Support box; 33. Sleeve; 34. Spring; 35. Copper tube; 36. Guide rod; 37. Magnetic ring; 38. Support tube; 39. Receiving block; 40. Threaded tube. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-Figure 8A metal laser cutting device shown in the figure includes a processing platform 1 and a rotating seat 2 fixedly installed on the top of the processing platform 1. A support seat 3 is arranged on the top of the processing platform 1. A metal tube 4 is arranged between the support seat 3 and the rotating seat 2. The rotating seat 2 can cooperate with the support seat 3 to transport the metal tube 4 and rotate the metal tube 4. A mounting frame 5 is fixedly installed on the top of the rotating seat 2. A laser cutting head 6 is installed at one end of the mounting frame 5 for cutting the metal tube 4. A driving screw 28 is rotatably installed on the inner side of the processing platform 1. A threaded slide 29 is fixedly installed on the bottom of the support seat 3, and the threaded slide 29 is threadedly assembled with the driving screw 28. A threaded slide 6 is provided on the inner side of the processing platform 1. The guide slide groove 29 with limited sliding enables the driving screw 28 to drive the support seat 3 to move along the top of the processing platform 1 through the threaded slide seat 29, so as to facilitate the transportation of the tail part of the metal tube 4 to the bottom of the laser cutting head 6. An exhaust bellows 30 is fixedly installed on the top of the mounting frame 5, and an air intake hood 31 is fixedly installed on the outer side of the laser cutting head 6. The air intake hood 31 is connected to the exhaust bellows 30 through the exhaust pipe, so that the exhaust bellows 30 can inhale the smoke generated by the laser cutting head 6 when cutting the metal tube 4 through the air intake hood 31, so that the staff can observe the cutting position of the metal tube 4; it also includes: a material fixing mechanism, which is used to position and cut the end of the metal tube 4, and the material fixing mechanism is installed on the top of the processing platform 1.

[0031] The material fixing mechanism includes two mounting vertical plates 7 which are symmetrically fixed on the top of the processing platform 1, two mounting boxes 8 which are symmetrically distributed are fixedly installed between the two mounting vertical plates 7, two symmetrically distributed moving blocks 9 are slidably installed on the inner side of the mounting box 8 through the optical axis, and a different direction screw 10 is rotatably installed on the inner side of the mounting box 8, and the two ends of the different direction screw 10 are respectively threadedly assembled with the two moving blocks 9, so that when the different direction screw 10 rotates, the two moving blocks 9 can be driven to approach or move away from each other along the outer side of the optical axis, and a mounting support plate 11 is fixedly installed on the bottom of the moving block 9, and an arc-shaped clamping plate 12 is fixedly installed on the end of the mounting support plate 11 away from the moving block 9, so that when the moving block 9 moves, the arc-shaped clamping plate 12 can be driven by the mounting support plate 11 to be close to the outer side of the metal pipe 4, so as to clamp and position the metal pipe 4, so as to provide a good clamping and positioning for the metal to be cut. The end of the metal pipe 4 is provided with positioning to improve the stability of cutting the metal pipe 4. A driving motor 13 is arranged above the processing platform 1. The driving motor 13 is fixedly installed on the outer side of the adjacent mounting vertical plate 7. The output end of the driving motor 13 is fixedly connected to the adjacent counter-rotating screw 10, so that the driving motor 13 can drive the corresponding counter-rotating screw 10 to rotate. A synchronous belt 14 is rotatably installed between the two counter-rotating screws 10. When the driving motor 13 drives the corresponding counter-rotating screw 10 to rotate, the counter-rotating screw 10 can drive another counter-rotating screw 10 to rotate synchronously through the synchronous belt 14, so as to realize the synchronous movement of the four arc-shaped clamping plates 12. A support box 32 is fixedly installed between the two mounting boxes 8. The synchronous belt 14 is located on the inner side of the support box 32, so as to provide protection for the synchronous belt 14 and ensure the stability of the transmission of the two counter-rotating screws 10 by the synchronous belt 14.

[0032] Example 2: Please refer to Figure 3-Figure 7, this embodiment further explains the first embodiment. The material 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 the adjacent mounting vertical plates 7. A support tube 38 is slidably installed on the outer side of the movable rod 15. The support tube 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 limiting block is provided on the end of the movable rod 15 away from the pull block 16 to provide a limit for the movement of the movable rod 15. A mounting seat 17 is arranged above the movable rod 15. The mounting seat 17 is fixedly installed on the outer side of the mounting vertical plate 7. The outer side of the mounting seat 17 is hingedly equipped with Two symmetrically distributed rocker bars 18 are provided with long grooves at both ends of the rocker bars 18. Two symmetrically distributed first slide bars 19 are fixedly installed on the outer side of the pull block 16. The first slide bar 19 is slidably installed in the long grooves of the rocker bars 18. When the end of the rocker bar 18 away from the first slide bar 19 swings with the mounting seat 17 as a fulcrum, the pull block 16 can be pulled to move by the first slide bar 19, so that the pull block 16 drives 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 close to the mounting vertical plate 7. The end of the pull plate 20 away from the arc-shaped clamping plate 12 is fixedly installed with a second slide bar 21. The second slide bar 21 is slidably installed in the long groove of the end of the rocker bar 18 away from the first slide bar 19. When the arc-shaped clamping plate 12 is moved, the rocker rod 18 can be pulled by the second sliding rod 21 on the pulling plate 20 to swing with the mounting seat 17 as a fulcrum to realize the movement of the movable rod 15. A material receiving block 39 is provided at one end of the pulling block 16 away from the movable rod 15, so that when the four movable rods 15 are moved closer to the middle position of the two mounting vertical plates 7, the four material receiving blocks 39 can move to the bottom of the metal pipe 4, so that the four material receiving blocks 39 can catch the cut metal pipe 4. A buffer component for buffering the fall of the metal pipe 4 is also provided between the pulling block 16 and the material receiving block 39. The buffer component includes a sleeve seat 33 fixedly installed on the side of the pulling block 16 close to the material receiving block 39, and a bottom of the material receiving block 39 is fixedly installed between the top of the sleeve seat 33. There is a spring 34 to provide a buffer for the contact between the material 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 material receiving block 39. The guide rod 36 is arranged on the inner side of the copper tube 35. A magnet ring 37 slidably installed on the inner side of the copper tube 35 is fixedly installed on the outer side of the guide rod 36. The electromagnetic damping characteristics between the magnet ring 37 and the copper tube 35 are used to provide deceleration for the movement of the material receiving block 39 to prevent the spring 34 from rebounding. The top of the material receiving block 39 is made of rubber material to increase the friction between the material receiving block 39 and the metal tube 4. A material receiving box is installed on the top of the processing platform 1 between the two mounting vertical plates 7 for storing the cut metal tube 4.

[0033] Example 3: Please refer to Figure 4 and Figure 8, this embodiment further explains other embodiments. The distance adjustment mechanism shown in the figure includes two threaded barrels 40 symmetrically fixedly installed at both ends of the arc-shaped clamping plate 12. The inner thread of the threaded barrel 40 is equipped with an adjusting screw 22. The adjusting screw 22 can be moved along the inner side of the threaded barrel 40 by rotating. A circular block 23 is fixedly installed at one end of the adjusting screw 22 close to the metal pipe 4. A ball 24 is fixedly installed on the side of the circular block 23 away from the adjusting screw 22. The outer side of the ball 24 is made of rubber material, so that the arc-shaped clamping plate 12 is pressed against the outer side of the metal pipe 4 through the two balls 24, and the position of the ball 24 can be adjusted by adjusting the screw 22. More sizes of metal tubes 4 can be clamped and positioned. A handwheel 25 is fixedly installed on the end of the adjusting screw 22 away from the circular block 23 for rotating the adjusting screw 22. A swivel 26 is rotatably installed on the handwheel 25 and the side of the circular block 23 close to the adjusting screw 22. Two symmetrically distributed scales 27 are fixedly installed between the two swivels 26. A sliding cavity is provided on the outer side of the threaded barrel 40 for the limited sliding of the scale 27, so that when the adjusting screw 22 rotates, the scale 27 can be pushed to move through the swivel 26. The staff can obtain the moving distance of the ball 24 based on the scale 27, which is convenient for precise adjustment of the positions of multiple balls 24.

[0034] Working principle: First, the staff starts the support seat 3 and the rotating seat 2, so that the rotating seat 2 cooperates with the support seat 3 to transport the long metal tube 4 toward the direction of the laser cutting head 6, and the end of the metal tube 4 moves between the two mounting vertical plates 7. The staff starts the drive motor 13, so that the drive motor 13 drives the corresponding counter-rotating screw 10 to rotate, and the 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 corresponding two moving blocks 9 to approach each other along the outer side of the optical axis, and the moving blocks 9 are installed through the support plate 1 1 drives the arc clamping plate 12 to move synchronously, so that the two balls 24 on the arc clamping plate 12 are against the outside of the metal tube 4, so as to clamp and position the cut part of the metal tube 4. Then, the rotating seat 2 drives the metal tube 4 to rotate, and the staff starts the laser cutting head 6. Under the clamping and positioning of the metal tube 4 by the balls 24 on the four arc clamping plates 12, the laser cutting head 6 can smoothly cut the metal tube 4. Then, the staff starts the driving motor 13 again, so that the driving motor 13 drives the corresponding counter-rotating screw 10 to rotate in the opposite direction, and the arc clamping plate 12 can The metal tube 4 cut away from the metal tube 4 falls downward due to gravity. At the same time, the arc-shaped clamping plate 12 drives the second slide bar 21 to move synchronously through the pull plate 20, so that the second slide bar 21 moves along the long groove on the rocker 18. The second slide bar 21 can push the rocker 18 to swing with the mounting seat 17 as a fulcrum. The other end of the rocker 18 pulls the first slide bar 19 to move, so that the first slide bar 19 pulls the movable rod 15 along the inner side of the support tube 38 through the pull block 16 to move horizontally. The pull block 16 drives the receiving block 39 to move to the cutting The four receiving blocks 39 are directly below the metal tube 4 below, so that the cut metal tube 4 is received by the staff. As a result, when the staff continues to cut the long metal tube 4, the arc clamping plate 12 can be away from the mounting vertical plate 7 again, and under the swing of the rocker 18, the receiving block 39 can be away from the cut metal tube 4, and the metal tube 4 can fall into the receiving box to prevent collisions between the continuously falling metal tubes 4, thereby improving the safety of cutting the metal tube 4, thereby achieving the effect of smooth cutting and safe discharge, and improving the convenience of cutting the metal tube 4.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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

Claims

1. A metal laser cutting device, characterized in that: include: A processing platform (1) and a rotating seat (2) installed on the top of the processing platform (1); a support seat (3) is arranged on the top of the processing platform (1); a metal pipe (4) is arranged between the support seat (3) and the rotating seat (2); a mounting frame (5) is fixedly installed on the top of the rotating seat (2); a laser cutting head (6) is installed at one end of the mounting frame (5); Also includes: A material setting mechanism, used for positioning and cutting the end of the metal tube (4), the material setting mechanism being installed on the top of the processing platform (1); A material receiving mechanism, used for safely receiving the cut metal pipe (4), the material receiving mechanism being installed on the top of the processing platform (1); The distance adjustment mechanism is used for positioning the metal tubes (4) of more sizes, and the distance adjustment mechanism is installed on the outside of the metal tube (4).

2. A metal laser cutting device according to claim 1, characterized in that: The material setting mechanism comprises two mounting vertical plates (7) mounted on the top of the processing platform (1), two mounting boxes (8) are fixedly mounted between the two mounting vertical plates (7), two moving blocks (9) are slidably mounted on the inner side of the mounting box (8) through an optical axis, a counter-rotating screw (10) is rotatably mounted on the inner side of the mounting box (8), two ends of the counter-rotating screw (10) are respectively threadedly assembled with the two moving blocks (9), a mounting support plate (11) is fixedly mounted on the bottom of the moving block (9), an arc-shaped clamping plate (12) is fixedly mounted on one end of the mounting support plate (11), a driving motor (13) is arranged above the processing platform (1), the output end of the driving motor (13) is fixedly connected to the adjacent counter-rotating screw (10), and a synchronous belt (14) is rotatably mounted between the two counter-rotating screws (10).

3. A metal laser cutting device according to claim 2, characterized in that: The material receiving mechanism comprises four movable rods (15) symmetrically arranged between two mounting vertical plates (7), the movable rods (15) slidingly penetrate the adjacent mounting vertical plates (7), one end of the movable rod (15) is fixedly installed with a pulling block (16), a mounting seat (17) is arranged above the movable rod (15), the outer side of the mounting seat (17) is hingedly equipped with two symmetrically distributed rocker rods (18), both ends of the rocker rods (18) are provided with long grooves, and the outer side of the pulling block (16) is fixedly installed with two first sliding rods (19), The first slide bar (19) is slidably mounted in the long groove of the rocker (18); two pull plates (20) are fixedly mounted on one side of the arc-shaped clamping plate (12); a second slide bar (21) is fixedly mounted on one end of the pull plate (20); the second slide bar (21) is slidably mounted in the long groove of the rocker (18) away from one end of the first slide bar (19); a receiving block (39) is provided at one end of the pulling block (16); and a buffer component for buffering the falling of the metal tube (4) is also provided between the pulling block (16) and the receiving block (39).

4. A metal laser cutting device according to claim 3, characterized in that: The distance adjustment mechanism comprises two threaded barrels (40) fixedly mounted at two ends of the arc-shaped clamping plate (12); an adjusting screw (22) is threadedly mounted on the inner side of the threaded barrel (40); a circular block (23) is fixedly mounted on one end of the adjusting screw (22); a ball (24) is fixedly mounted on one side of the circular block (23); the outer side of the ball (24) is made of rubber; a hand wheel (25) is fixedly mounted on the other end of the adjusting screw (22); a rotating ring (26) is rotatably mounted on the hand wheel (25) and the circular block (23) on one side close to the adjusting screw (22); two scales (27) are fixedly mounted between the two rotating rings (26); and a sliding cavity for limiting the sliding of the scale (27) is provided on the outer side of the threaded barrel (40).

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

6. The metal laser cutting device according to claim 1, characterized in that: An exhaust bellows (30) is installed on the top of the mounting frame (5), an air intake hood (31) is installed on the outer side of the laser cutting head (6), and the air intake hood (31) is connected to the exhaust bellows (30) via an exhaust pipe.

7. The metal laser cutting device according to claim 2, characterized in that: A support box (32) is fixedly installed between the two installation boxes (8), and the synchronous belt (14) is located on the inner side of the support box (32).

8. The metal laser cutting device according to claim 3, characterized in that: The buffer assembly comprises a sleeve (33) installed on one side of the pulling block (16), a spring (34) is fixedly installed between the connecting block (39) and the sleeve (33), 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 connecting block (39), and a magnet ring (37) slidably installed on the inner side of the copper tube (35) is fixedly installed on the outer side of the guide rod (36).

9. The metal laser cutting device according to claim 3, characterized in that: The top of the material receiving block (39) is made of rubber.

10. The metal laser cutting device according to claim 3, characterized in that: A support tube (38) is slidably mounted on the outer side of the movable rod (15), and the support tube (38) is fixedly mounted on the outer side of the mounting vertical plate (7).

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