Cutting gun anti-collision type laser cutting device

Abstract

The invention discloses a cutting gun anti-collision type laser cutting device, and belongs to the field of laser cutting, the cutting gun anti-collision type laser cutting device comprises a lifting seat, a laser emission head is fixedly connected to the lower part of the lifting seat, an electric push rod is fixedly connected to the upper part of the lifting seat, a first baffle movably penetrates through the upper part of the lifting seat, and a second rack is fixedly connected to the upper part of the first baffle; a supporting seat is fixedly connected to the upper portion of the lifting seat, a first gear and a second gear are rotationally connected to the inner surface of the supporting seat, the first gear and the second gear are meshed with each other, and the second gear is meshed with the second rack. According to the laser cutting device, the electric push rod is arranged to drive the laser emitting head to ascend and descend, so that the laser emitting head is conveniently close to a workpiece for cutting, when the laser emitting head ascends, the first baffle extends downwards to be matched with the second baffle to cover the laser emitting head, and the effect of conveniently protecting the idle laser emitting head is achieved.

Description

Technical Field

[0001] This application relates to the field of laser cutting, and more specifically, to a laser cutting device with a torch anti-collision function. Background Art

[0002] The current cutting technologies include the following: flame cutting, arc cutting, laser cutting machines, tool cutting, water jet cutting, etc. Among them, laser cutting is often used in the cutting process of metal materials. Its working principle is to use a high-power density laser beam to irradiate the material to be cut, so that the material melts or vaporizes instantly to achieve the purpose of cutting.

[0003] The patent document with the publication number CN116135410B discloses a laser cutting device with a torch anti-collision function. This invention relates to the field of laser cutting technology, and more specifically, to a laser cutting device with a torch anti-collision function. The laser cutting device includes a frame, a gas cylinder, a cutting mechanism, and a clamping mechanism. The gas cylinder is arranged above the frame, the cutting mechanism is arranged at the upper end inside the frame, and the clamping mechanism is arranged at the lower end inside the frame. In the above application document, an induction sleeve and a protective sleeve are provided to sense whether the cutting mechanism collides with the workpiece, and at the same time, it can play a buffering role when a collision occurs. However, the protective sleeve has a certain flexibility and can only protect the laser head from colliding with the workpiece. When the laser head is idle, the protective performance of the protective sleeve is not convenient for preventing other external components from hitting the laser head, and it is not convenient to provide a better protection effect for the laser head. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a laser cutting device with a torch anti-collision function, which solves the problems raised in the above background art.

[0005] To achieve the above object, the present application provides a laser cutting device with a torch anti-collision function, including a lifting seat. A laser emitting head is fixedly connected below the lifting seat. An electric push rod is fixedly connected above the lifting seat. A first baffle is movably penetrated above the lifting seat. A second rack is fixedly connected above the first baffle. A support seat is fixedly connected above the lifting seat. A first gear and a second gear are rotatably connected to the inner surface of the support seat. The first gear and the second gear are meshed with each other. The second gear is meshed with the second rack. A connecting block is fixedly connected to the front surface of the electric push rod. First racks are fixedly connected to the left and right sides of the connecting block. The first racks are meshed with the first gear. A slot is opened above the lifting seat, and the slot is adapted to the first rack. A second baffle is arranged on the outer surface of the laser emitting head. A spring is fixedly connected between the second baffle and the laser emitting head. A spraying assembly for cooling the workpiece is assembled on the outer surface of the lifting seat. A shielding assembly for covering the lower part of the laser emitting head is assembled below the laser emitting head.

[0006] Preferably, a machine tool body is provided on the outer surface of the laser emitting head, and a three-jaw chuck is provided on the left inner surface of the machine tool body.

[0007] Preferably, a moving part is provided on the top inner surface of the machine tool body, a slider is provided below the moving part, and the slider is fixedly connected to the upper end of an electric push rod.

[0008] Preferably, the spraying assembly includes a sliding ring. A connecting plate is fixedly connected between the sliding ring and the outer surface of the lifting seat. A sliding block is slidably connected to the outer surface of the sliding ring. An internal gear is fixedly connected above the sliding block. A fourth gear is meshed with the inner surface of the internal gear. A rotating shaft penetrates and is fixedly connected above the fourth gear. The rotating shaft is rotatably connected to the upper part of the connecting plate. A second bevel gear is fixedly connected to the upper end of the rotating shaft. A first bevel gear is meshed above the second bevel gear. A rotating column is fixedly connected behind the first bevel gear. A supporting piece is rotatably connected to the outer surface of the rotating column. The supporting piece is fixedly connected to the upper part of the lifting seat. A third gear is fixedly connected to the rear end of the rotating column. A third rack is meshed on the left side of the third gear. The third rack is fixedly connected to the upper part of the first baffle.

[0009] Preferably, the spraying assembly further includes an annular pipeline. The annular pipeline is fixedly connected to the lower part of the slider. A pipeline joint is fixedly connected to the front of the annular pipeline. A nozzle is fixedly connected below the sliding block. A hose is connected between the nozzle and the annular pipeline by a pipeline.

[0010] Preferably, a shaft support is rotatably connected to the outer surface of the rotating shaft. The shaft support is fixedly connected to the front of the lifting seat.

[0011] Preferably, the shielding assembly includes a connecting seat. The connecting seat is fixedly connected to the outer surface of the laser emitting head. A support rod is fixedly connected to the front of the connecting seat. A rotating sleeve is rotatably connected to the outer surface of the support rod. A torsion spring is elastically connected between the rotating sleeve and the support rod. A cover plate is fixedly connected to the left side of the rotating sleeve. A winch is fixedly connected to the outer surface of the rotating sleeve.

[0012] Preferably, the shielding assembly further includes a lifting rod. The lifting rod movably penetrates through the upper part of the lifting seat. A steel wire rope is connected between the lower end of the lifting rod and the winch by a rope. A connecting rod is fixedly connected between the lifting rod and the third rack.

[0013] The advantages of the present application are as follows: (1) By setting an electric push rod to drive the laser emitting head to lift, it is convenient to approach the workpiece for cutting. When the laser emitting head rises, the first baffle will extend downward to cooperate with the second baffle to cover the laser emitting head, which has the function of facilitating the protection of the idle laser emitting head.

[0014] (2) In this application, a spray component is provided to cool the workpiece after cutting. At this time, when the laser emitting head rises, it can drive the spray component to rotate, so as to perform spraying within a certain range, which is convenient for comprehensively cooling each cutting position of the workpiece.

[0015] (3) In this application, a shielding component is provided to shield the area below the laser emitting head. When the laser emitting head rises, the shielding component will cover the area below the laser emitting head, which is convenient for preventing the idle laser emitting head from emitting laser downward due to accidental touch, and can achieve the purpose of safety. Brief Description of the Drawings

[0016] The drawings constituting a part of this application are used to provide a further understanding of this application, making other features, objectives, and advantages of this application more obvious. The schematic embodiments and descriptions of the drawings of this application are used to explain this application and do not constitute an improper limitation to this application. In the drawings: Figure 1 is the schematic diagram of the overall structure of the present invention; Figure 2 is the bottom view of the overall structure of the present invention; Figure 3 is the schematic diagram of a partial structure of the present invention; Figure 4 is the bottom view of a partial structure of the present invention; Figure 5 is the right view of a partial structure of the present invention; Figure 6 is the left view of a partial structure of the present invention; Figure 7 is the Figure 5 enlarged schematic diagram of the structure at A in the present invention; Figure 8 is the Figure 5 enlarged schematic diagram of the structure at B in the present invention.

[0017] In the above figures, 1. Lifting seat; 2. Laser emitting head; 3. Electric push rod; 4. First baffle; 401. Second rack; 402. Support seat; 403. First gear; 404. Second gear; 405. Connecting block; 406. First rack; 407. Slot; 408. Second baffle; 409. Spring; 5. Spraying assembly; 501. Sliding ring; 502. Connecting plate; 503. Sliding block; 504. Internal gear; 505. Fourth gear; 506. Rotating shaft; 507. Second bevel gear; 508. First bevel gear; 509. Rotating column; 510. Support piece; 511. Third gear; 512. Third rack; 513. Annular pipeline; 514. Pipeline joint; 515. Nozzle; 516. Hose; 6. Shielding assembly; 601. Connecting seat; 602. Support rod; 603. Rotating sleeve; 604. Torsion spring; 605. Cover plate; 606. Winch; 607. Lifting rod; 608. Steel wire rope; 609. Connecting rod; 7. Machine tool body; 8. Three-jaw chuck; 9. Moving part; 10. Slide block; 11. Shaft support. Detailed implementation manner

[0018] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

[0019] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0020] In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0021] Moreover, in addition to being used to indicate orientation or positional relationship, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0022] In addition, the terms "installed", "set", "provided with", "connected", "connected to", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will detail this application with reference to the drawings and in conjunction with the embodiments.

[0024] Example 1: Refer to Figures 1 - 8, this embodiment provides a laser cutting device with a torch anti-collision function, which includes a lifting seat 1. A laser emitting head 2 is fixedly connected below the lifting seat 1. The laser emitting head 2 is used to emit laser to cut workpieces, which is prior art. An electric push rod 3 is fixedly connected above the lifting seat 1. A first baffle 4 movably penetrates through the upper part of the lifting seat 1. The number of the first baffles 4 is four, and the shape of the first baffle 4 is L-shaped. A slot for passing through the first baffle 4 is formed in the upper part of the lifting seat 1. A second rack 401 is fixedly connected above the first baffle 4. The number of the second racks 401 is four. The slot on the lifting seat 1 for passing through the first baffle 4 can pass through the second rack 401. A support seat 402 is fixedly connected above the lifting seat 1. The number of the support seats 402 is four, and the shape of the support seat 402 is U-shaped. A first gear 403 and a second gear 404 are rotatably connected to the inner surface of the support seat 402. The number of the first gears 403 and the second gears 404 is four, which are respectively arranged in the four support seats 402. The second gear 404 is close to the second rack 401. The first gear 403 meshes with the second gear 404, and the second gear 404 meshes with the second rack 401. A connecting block 405 is fixedly connected to the front of the electric push rod 3. The number of the connecting blocks 405 is two, which are respectively arranged on the front and back sides of the electric push rod 3. Two first racks 406 are arranged on each connecting block 405. The first racks 406 are fixedly connected to the left and right sides of the connecting block 405. The first racks 406 mesh with the first gear 403. A slot 407 is formed in the upper part of the lifting seat 1. The number of the slots 407 is four, and the slots 407 are adapted to the first racks 406. The first racks 406 can extend into the slots 407. A second baffle 408 is arranged on the outer surface of the laser emitting head 2. The number of the second baffles 408 is four, which are respectively arranged on the front, back, left and right sides of the laser emitting head 2. A spring 409 is fixedly connected between the second baffle 408 and the laser emitting head 2. Two springs 409 are arranged on each second baffle 408. A spraying assembly 5 for cooling the workpiece is assembled on the outer surface of the lifting seat 1. A shielding assembly 6 for covering the lower part of the laser emitting head 2 is assembled below the laser emitting head 2. A machine tool body 7 is arranged on the outer surface of the laser emitting head 2. A laser emitter is arranged in the machine tool body 7. The laser emitter is connected to the laser emitting head 2 through an optical cable, which is prior art. A three-jaw chuck 8 is arranged on the left inner surface of the machine tool body 7. The three-jaw chuck 8 is a part of the machine tool body 7 and is used to install the workpiece for cutting. A moving part 9 is arranged on the top inner surface of the machine tool body 7. The moving part 9 includes a sliding seat and two groups of electric slide rails, which is prior art and is used to drive the laser emitting head 2 to move in the X-axis and Y-axis directions. A slider 10 is arranged below the moving part 9. The slider 10 is fixedly connected to the upper end of the electric push rod 3. The electric push rod 3 is used to move the laser emitting head 2 in the Z-axis direction.

[0025] When the above device is in specific use, first fix the workpiece on the three-jaw chuck 8, and then drive the slider 10 to move back and forth, left and right through the moving part 9, so as to drive the electric push rod 3 and the lifting seat 1 to align the laser emitting head 2 with the part of the workpiece that needs to be cut. At this time, start the electric push rod 3 to make it extend and drive the lifting seat 1 to descend, so that the laser emitting head 2 descends and approaches the workpiece, and then start cutting. During cutting, as the laser emitting head 2 moves, the second baffle 408 will shield the periphery of the laser emitting head 2 to prevent the laser emitting head 2 from colliding with the workpiece. The spring 409 will buffer the collision force and prevent deformation caused by extrusion. When cutting is completed, drive the lifting seat 1 to make the laser emitting head 2 rise by the contraction of the electric push rod 3. At this time, as the lifting seat 1 rises, it will drive the support seat 402 to make the first gear 403 and the second gear 404 rise. As the first gear 403 rises, it will roll on the first rack 406, so as to rotate during the rising process. The rotation of the first gear 403 will drive the second gear 404 to rotate, and the rotation of the second gear 404 will drive the second rack 401 to descend, and then drive the first baffle 4 to descend. The first baffle 4 will extend from below the lifting seat 1 and cover the second baffle 408 around the laser emitting head 2, and at the same time cooperate with the second baffle 408 to form a circle of protection around the laser emitting head 2, so as to strengthen the protection effect on the laser emitting head 2 after the laser emitting head 2 rises and prevent the laser emitting head 2 from being damaged by external collision when replacing the workpiece.

[0026] Embodiment 2: Refer to Figures 3 - 7, the spraying assembly 5 includes a sliding ring 501 which is arranged on the outer surface of the lifting seat 1. An annular chute is formed above the sliding ring 501. A connecting plate 502 is fixedly connected between the sliding ring 501 and the outer surface of the lifting seat 1, and the number of the connecting plates 502 is four. A sliding block 503 is slidably connected to the outer surface of the sliding ring 501, and the number of the sliding blocks 503 is four. An internal gear 504 is fixedly connected above the sliding block 503. A fourth gear 505 is meshed with the inner surface of the internal gear 504. A rotating shaft 506 penetrates through and is fixedly connected above the fourth gear 505. The rotating shaft 506 is rotatably connected to the upper part of the connecting plate 502. The rotating shaft 506 is arranged on the connecting plate 502 located in the front of the lifting seat 1. A shaft support 11 is rotatably connected to the outer surface of the rotating shaft 506. The shaft support 11 is used to support the stable rotation of the rotating shaft 506, and the shaft support 11 is fixedly connected to the front of the lifting seat 1. A second bevel gear 507 is fixedly connected to the upper end of the rotating shaft 506. A first bevel gear 508 is meshed with the upper part of the second bevel gear 507. A rotating column 509 is fixedly connected behind the first bevel gear 508. A supporting piece 510 is rotatably connected to the outer surface of the rotating column 509. A bearing is arranged between the rotating column 509 and the supporting piece 510. The supporting piece 510 is fixedly connected to the upper part of the lifting seat 1. A third gear 511 is fixedly connected to the rear end of the rotating column 509. A third rack 512 is meshed with the left side of the third gear 511. The third rack 512 is fixedly connected to the upper part of the first baffle 4. The third rack 512 is arranged on the first baffle 4 on the left side of the front. The third rack 512 can extend into the groove on the lifting seat 1 for passing through the first baffle 4. The spraying assembly 5 further includes an annular pipeline 513 which is fixedly connected to the lower part of the slider 10. A pipeline joint 514 is fixedly connected to the front of the annular pipeline 513. The pipeline joint 514 is used to connect a water pipe to an external water source. A nozzle 515 is fixedly connected below the sliding block 503. The rotation of the nozzle 515 is fan-shaped, and the spray openings arranged on its lower surface can spray a long strip range. A hose 516 is connected between the nozzle 515 and the annular pipeline 513 by pipelines. The number of the nozzles 515 and the hoses 516 is four.

[0027] When the above-mentioned device is used in practice, when the laser transmitter 2 has finished cutting the workpiece, the temperature at the cutting position will be higher. At this time, the pipe joint 514 is connected to the water pipe to the external water source, so as to supply water to the annular pipe 513. The water supplied to the annular pipe 513 will be transported to the nozzle 515 through the hose 516, so that the nozzle 515 sprays water downward to cool the workpiece. The four nozzles 515 will spray out a cross-shaped range. At this time, the lifting seat 1 is pulled up by the electric push rod 3 to make the laser transmitter 2 that has finished cutting the workpiece rise and move away from the workpiece. At this time, the lifting seat 1 rises to make the first baffle 4 descend, and the first baffle 4 descends, which will also drive the third rack 512 to descend. The descent of the third rack 512 will drive the third gear 511 to rotate counterclockwise, and the counterclockwise rotation of the third gear 511 will drive the rotating column 509 to rotate counterclockwise on the support plate 510. The first bevel gear 508 rotates counterclockwise through the rotating column 509, and the second bevel gear 507 rotates clockwise through the counterclockwise rotation of the first bevel gear 508. The second bevel gear 507 rotates clockwise through the clockwise rotation of the second bevel gear 507. The rotating shaft 506 rotates clockwise in the shaft bracket 11 through the clockwise rotation of the rotating shaft 506. The fourth gear 505 rotates clockwise through the clockwise rotation of the fourth gear 505. The inner gear 504 rotates clockwise around the outer periphery of the lifting seat 1. The inner gear 504 rotates clockwise, and the sliding block 503 rotates clockwise on the sliding ring 501, thereby driving the four nozzles 515 to rotate clockwise. At this time, the rotation of the four nozzles 515 causes the spraying range to move linearly into a surface, thereby spraying water on a large area below the laser emitting head 2, so as to comprehensively cool down the cutting points of the workpiece.

[0028] Example 3: See Figures 3 - 8, the shielding component 6 includes a connecting seat 601. The connecting seat 601 is L-shaped and is fixedly connected to the outer surface of the laser emitting head 2. A support rod 602 is fixedly connected to the front surface of the connecting seat 601. A rotating sleeve 603 is rotatably connected to the outer surface of the support rod 602. The rotating sleeve 603 is in the shape of a single-opening cylinder. There is a through hole at its rear for sleeving on the support rod 602 and is rotatably connected to the support rod 602 through a bearing. A torsion spring 604 is elastically connected between the rotating sleeve 603 and the support rod 602. In the normal state, the torsion spring 604 applies a torsion force to make the rotating sleeve 603 rotate counterclockwise on the support rod 602. A cover plate 605 is fixedly connected to the left side of the rotating sleeve 603. The cover plate 605 is used to block the lower part of the laser emitting head 2. A winch 606 is fixedly connected to the outer surface of the rotating sleeve 603. The shielding component 6 further includes a lifting rod 607. The lifting rod 607 movably penetrates through the upper part of the lifting seat 1. There is a through hole for passing through the lifting rod 607 at the upper part of the lifting seat 1. A steel wire rope 608 is connected between the lower end of the lifting rod 607 and the winch 606 by a rope. The steel wire rope 608 is wound clockwise on the winch 606. A connecting rod 609 is fixedly connected between the lifting rod 607 and the third rack 512. The lifting and lowering of the third rack 512 can drive the connecting rod 609 to make the lifting rod 607 lift and lower together.

[0029] When the above equipment is specifically used, when the lifting seat 1 rises, causing the first baffle 4 to descend and further driving the third rack 512 to descend, at the same time, the descent of the third rack 512 will also drive the connecting rod 609 to make the lifting rod 607 descend. The descent of the lifting rod 607 will loosen the steel wire rope 608. At this time, the torsion spring 604 will apply a torsion force to make the rotating sleeve 603 rotate counterclockwise on the support rod 602. The counterclockwise rotation of the rotating sleeve 603 will drive the cover plate 605 to turn to the right and cover the lower part of the laser emitting head 2, preventing the idle laser emitting head 2 from emitting laser downward due to accidental touch or other factors after rising and causing damage. When the laser emitting head 2 needs to cut a workpiece, by lowering the lifting seat 1, the first baffle 4 rises. The first baffle 4 will drive the third rack 512 to rise and further drive the connecting rod 609 to make the lifting rod 607 pull the steel wire rope 608 to rise. The steel wire rope 608 will pull the winch 606 to make the rotating sleeve 603 rotate clockwise on the support rod 602, causing the cover plate 605 to turn left from under the laser emitting head 2 to open the lower part of the laser emitting head 2 so that it can emit laser downward to cut the workpiece.

[0030] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A laser cutting device with a torch anti-collision function, comprising a lifting seat (1), a laser emitting head (2) is fixedly connected below the lifting seat (1), and an electric push rod (3) is fixedly connected above the lifting seat (1), characterized in that, Above the lifting seat (1), a first baffle (4) penetrates through it movably. Above the first baffle (4), a second rack (401) is fixedly connected. Above the lifting seat (1), a support seat (402) is fixedly connected. Inside the support seat (402), a first gear (403) and a second gear (404) are rotatably connected. The first gear (403) meshes with the second gear (404). The second gear (404) meshes with the second rack (401). On the front surface of the electric push rod (3), a connecting block (405) is fixedly connected. On the left and right sides of the connecting block (405), first racks (406) are fixedly connected. The first racks (406) mesh with the first gear (403). Above the lifting seat (1), a slot (407) is opened. The slot (407) is adapted to the first rack (406). On the outer surface of the laser emitter (2), a second baffle (408) is arranged. Between the second baffle (408) and the laser emitter (2), a spring (409) is fixedly connected. On the outer surface of the lifting seat (1), a spraying assembly (5) for cooling the workpiece is assembled. Below the laser emitter (2), a shielding assembly (6) for covering the lower part thereof is assembled.

2. The anti-collision laser cutting device for a cutting torch according to claim 1, wherein, On the outer surface of the laser emitter (2), a machine tool body (7) is arranged. On the left inner surface of the machine tool body (7), a three-jaw chuck (8) is arranged.

3. The anti-collision laser cutting device for a cutting torch according to claim 2, wherein, On the top inner surface of the machine tool body (7), a moving part (9) is arranged. Below the moving part (9), a slider (10) is arranged. The slider (10) is fixedly connected to the upper end of the electric push rod (3).

4. A laser cutting device with anti-collision function for cutting torch according to claim 1, characterized in that, The spraying assembly (5) includes a sliding ring (501). Between the sliding ring (501) and the outer surface of the lifting seat (1), a connecting plate (502) is fixedly connected. On the outer surface of the sliding ring (501), a sliding block (503) is slidably connected. Above the sliding block (503), an internal gear (504) is fixedly connected. Inside the internal gear (504), a fourth gear (505) meshes. Above the fourth gear (505), a rotating shaft (506) penetrates and is fixedly connected. The rotating shaft (506) is rotatably connected to the upper part of the connecting plate (502). At the upper end of the rotating shaft (506), a second bevel gear (507) is fixedly connected. Above the second bevel gear (507), a first bevel gear (508) meshes. Behind the first bevel gear (508), a rotating column (509) is fixedly connected. On the outer surface of the rotating column (509), a support piece (510) is rotatably connected. The support piece (510) is fixedly connected to the upper part of the lifting seat (1). At the rear end of the rotating column (509), a third gear (511) is fixedly connected. On the left side of the third gear (511), a third rack (512) meshes. The third rack (512) is fixedly connected to the upper part of the first baffle (4).

5. The anti-collision laser cutting device for a cutting torch according to claim 4, wherein, The spray assembly (5) further includes an annular pipe (513), the annular pipe (513) is fixedly connected to the lower part of the slider (10), a pipe joint (514) is fixedly connected to the front of the annular pipe (513), a spray head (515) is fixedly connected to the lower part of the sliding block (503), and a hose (516) is connected by a pipeline between the spray head (515) and the annular pipe (513).

6. The anti-collision laser cutting device for a cutting torch according to claim 4, wherein, An axle bracket (11) is rotatably connected to the outer surface of the rotating shaft (506), and the axle bracket (11) is fixedly connected to the front of the lifting seat (1).

7. A torch anti-collision type laser cutting device according to claim 1, characterized in that, The shielding assembly (6) includes a connecting seat (601), the connecting seat (601) is fixedly connected to the outer surface of the laser emitting head (2), a support rod (602) is fixedly connected to the front of the connecting seat (601), a rotating sleeve (603) is rotatably connected to the outer surface of the support rod (602), a torsion spring (604) is elastically connected between the rotating sleeve (603) and the support rod (602), a cover plate (605) is fixedly connected to the left side of the rotating sleeve (603), and a winch (606) is fixedly connected to the outer surface of the rotating sleeve (603).

8. The anti-collision laser cutting device for a cutting torch according to claim 7, characterized in that, The shielding assembly (6) further includes a lifting rod (607), the lifting rod (607) movably penetrates through the upper part of the lifting seat (1), a steel wire rope (608) is connected by a rope between the lower end of the lifting rod (607) and the winch (606), and a connecting rod (609) is fixedly connected between the lifting rod (607) and the third rack (512).

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