A protective device for a laser cutting machine

Abstract

The present invention discloses a protection device for a laser cutting machine, which solves the problem that the time between the generation of waste gas and the treatment of waste gas is relatively long, resulting in poor waste gas treatment effect. It includes a laser cutter, on which a laser cutting head is installed. The laser cutting head includes a laser emitting head installed on the laser cutter. The bottom end of the laser emitting head is installed with a laser emitting head. Card slots are symmetrically opened on both sides of the housing of the laser emitter. An exhaust gas treatment component is installed outside the laser emitting head, and the exhaust gas treatment component is used to treat the exhaust gas generated during the cutting process. The exhaust gas treatment component includes a mounting sleeve sleeved outside the laser emitting head, and an inner cavity is provided inside the mounting sleeve. In the present invention, the exhaust gas treatment component is installed outside the laser emitting head, so that the distance between the exhaust gas treatment component and the position where the exhaust gas is generated is shortened, thereby shortening the exhaust gas circulation distance and the exhaust gas treatment time, and improving the exhaust gas treatment effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser cutting machines, and specifically relates to a protective device for a laser cutting machine. Background Art

[0002] Laser cutting is achieved by applying the high-power density energy generated after laser focusing. Under the control of a computer, the laser is discharged by a pulse, thereby outputting a controlled repetitive high-frequency pulsed laser to form a light beam with a certain frequency and a certain pulse width. This pulsed laser beam is conducted and reflected through an optical path and focused on the surface of the workpiece to be processed through a focusing lens group, forming a series of fine, high-energy density light spots. The focal spot is located near the surface to be processed, instantaneously melting or vaporizing the workpiece material at high temperature. Under the control of a computer, the laser processing head and the workpiece material move continuously relative to each other according to a pre-drawn pattern for dotting, so that the object can be processed into the desired shape. However, a large amount of waste gas is generated during laser cutting, and this waste gas can cause harm to the human body. In this case, generally, an exhaust gas treatment device needs to be installed on a laser cutting machine tool, and the generated waste gas is sucked into an exhaust gas treatment box through a suction device, but there are the following defects:

[0003] During laser cutting, the cutting position may be far from the exhaust gas treatment position, resulting in a long time between the generation of waste gas and its treatment. The waste gas may escape and be inhaled by the staff during this stage, causing harm to the staff. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a protective device for a laser cutting machine, effectively solving the problem of the long time between the generation of waste gas and its treatment, resulting in poor exhaust gas treatment effect.

[0005] To achieve the above object, the present invention provides the following technical solution: A protective device for a laser cutting machine, including a laser cutter installed on a cutting machine tool, and a laser cutting head is installed on the laser cutter;

[0006] The laser cutting head includes a laser emitter installed on the laser cutter. A laser emitting head is installed at the bottom end of the laser emitter. Card slots are symmetrically opened on both sides of the housing of the laser emitter. An exhaust gas treatment component is installed outside the laser emitting head, and the exhaust gas treatment component is used for treating the waste gas generated during the cutting process;

[0007] The exhaust gas treatment component includes a mounting sleeve sleeved outside the laser emitting head. An inner cavity is formed inside the mounting sleeve. Air intake holes are equiangularly formed at the bottom end of the inner cavity. A partition is installed inside the inner cavity, and fans are equiangularly installed on the partition. A clamping installation unit is installed at the top end of the mounting sleeve, and the clamping installation unit is used for installing the mounting sleeve. Exhaust gas absorption units are symmetrically installed on both sides of the mounting sleeve, and the exhaust gas absorption units are used for absorbing exhaust gas.

[0008] Preferably, the clamping installation unit includes vertical plates symmetrically installed at the top end of the mounting sleeve. The two vertical plates are symmetrically arranged on both sides of the laser emitter. On the side of each of the two vertical plates away from each other, a side cylinder is installed. A clamping rod is movably installed inside the side cylinder. The clamping rod is clamped with a clamping groove. On the side of the clamping rod away from the laser emitter, a first spring is fixedly installed. One end of the first spring is fixedly connected to the inner wall of the end of the side cylinder. One end of the clamping rod is installed with a connecting rod. The connecting rod penetrates to the outside of the side cylinder, and a handle is fixedly installed at the end of the connecting rod.

[0009] Preferably, the exhaust gas absorption unit includes side boxes fixedly installed on both sides of the mounting sleeve. Positioning grooves are symmetrically formed at the ends of the side boxes. A filter plate is installed at the top end of the side box. A first installation box is installed at the top end of the side box. An air inlet pipe is installed at the top end of the first installation box. The top end of the air inlet pipe is communicated with the space above the partition inside the inner cavity. An air intake control unit is installed inside the first installation box. A rotation driving unit is installed at the top end of the side box.

[0010] Preferably, a storage box is installed inside the side box. An end plate is installed at one end of the storage box. Positioning rods are symmetrically installed on the end plate. The positioning rods are inserted into the positioning grooves. The storage box is filled with a chemical agent for absorbing exhaust gas. A top plate is fixedly installed at the top end of the storage box. The top plate is located on the side of the top end of the storage box close to the mounting sleeve. A limiting groove is formed on the side of the top plate away from the mounting sleeve.

[0011] Preferably, the air intake control unit includes a rotation groove formed inside the first installation box. A communication groove is formed at the top end of the rotation groove. The communication groove is communicated with the air inlet pipe. A side groove is formed on the side of the rotation groove away from the mounting sleeve. A circular box is rotatably installed inside the rotation groove. The outer wall of the circular box is in close contact with the inner wall of the rotation groove.

[0012] Preferably, a bottom pipe is fixedly installed at the bottom end of the circular box. The diameter of the bottom pipe is smaller than the width of the side groove. A communication air hole is formed on the top wall of the circular box. The communication air hole is communicated with the communication groove. When the bottom pipe is in the longitudinal state, the bottom pipe is clamped in the limiting groove, and the bottom end of the bottom pipe is inserted into the chemical agent. When the circular box rotates clockwise by 90 degrees, the bottom pipe rotates to the horizontal state. At this time, the bottom pipe is located above the storage box. A first rotating shaft is coaxially installed on the back of the circular box. A first sprocket is fixedly installed at the end of the first rotating shaft. The first sprocket is located on the back of the first installation box.

[0013] Preferably, the rotation driving unit includes a second mounting box fixedly installed at the top end of the side box. The first sprocket is rotatably installed inside the second mounting box. A second sprocket is provided above the first sprocket. A second rotating shaft is coaxially installed on the second sprocket. The second rotating shaft is rotatably connected to the second mounting box. A chain is installed on the outer sides of the first sprocket and the second sprocket. A first gear is installed on the back surface of the second rotating shaft.

[0014] Preferably, a double-sided tooth plate is meshed and connected above the first gear. A single-sided tooth plate is provided above the double-sided tooth plate. A second gear is meshed and connected between the double-sided tooth plate and the single-sided tooth plate. The second gear is rotatably installed on a fixing plate. The fixing plate is fixedly installed at the top end of the side box. Two guiding frames are fixedly installed on the fixing plate. The double-sided tooth plate and the single-sided tooth plate are respectively slidably connected to the two guiding frames. The top end of the single-sided tooth plate is fixedly installed with a connecting plate. The connecting plate is fixedly connected to the handle.

[0015] Preferably, Y-axis sliding frames are symmetrically installed at the top end of the cutting machine tool. A Y-axis sliding table is provided above the cutting machine tool. The Y-axis sliding table is slidably connected to the Y-axis sliding frames. An X-axis sliding table is slidably installed on the Y-axis sliding table. The laser cutter is fixedly installed on the X-axis sliding table. A Y-axis moving module is installed between the Y-axis sliding table and the Y-axis sliding frames. An X-axis moving module is installed between the Y-axis sliding table and the X-axis sliding table.

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

[0017] 1) During operation, the mounting sleeve is installed outside the laser emitting head. Storage boxes are installed inside the side boxes provided on both sides of the mounting sleeve. Chemical agents for waste gas treatment are filled in the storage boxes. The partition plate inside the mounting sleeve drives the waste gas generated by laser cutting into the chemical agents to treat the waste gas. At the same time, the mounting sleeve can move together with the laser emitting head, shortening the time from waste gas generation to waste gas treatment and avoiding the influence on the staff due to long-term waste gas;

[0018] 2) During operation, the circular box is rotatably installed inside the rotating groove. When the bottom pipe rotates to the vertical state, the bottom end of the bottom pipe can extend into the chemical agent in the storage box, enabling the waste gas to directly enter the chemical agent, facilitating the treatment of the waste gas. At the same time, the communication air holes on the circular box are communicated with the communication grooves at this time, and the outer wall of the circular box is in close contact with the inner wall of the rotating groove, improving the guiding effect on the waste gas, preventing the waste gas from escaping, and enhancing the waste gas treatment effect;

[0019] 3) During operation, the circular box can rotate in the rotating groove. When the bottom pipe rotates to the horizontal state along with the circular box, the bottom pipe is located above the storage box, facilitating the taking and placing of the storage box. When the bottom pipe rotates to the vertical state along with the circular box, the bottom pipe is clamped into the limiting groove on one side of the top plate to limit the storage box, improving the stability of waste gas treatment;

[0020] 4) When pulling outwards through the set handle during work, the clamping rod can be driven into the side cylinder, and at the same time, the circular box is driven to rotate, so that the bottom pipe rotates to a horizontal state, facilitating the installation of the storage box. When the clamping rod is clamped into the inside of the card slot to complete the fixation of the installation sleeve, the handle moves to drive the circular box to rotate until the bottom pipe is in a vertical state, thereby facilitating the adjustment of the state of the bottom pipe and facilitating waste gas treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0022] In the drawings:

[0023] Figure 1 is a schematic structural diagram of a protection device for a laser cutting machine of the present invention;

[0024] Figure 2 is a schematic structural diagram of a laser cutter of the present invention;

[0025] Figure 3 is a schematic external structural diagram of an installation sleeve of the present invention;

[0026] Figure 4 is a schematic internal structural diagram of an installation sleeve of the present invention;

[0027] Figure 5 is a schematic structural diagram of a storage box of the present invention;

[0028] Figure 6 is a schematic structural diagram of a side box of the present invention;

[0029] Figure 7 is a schematic structural diagram of a circular box of the present invention;

[0030] Figure 8 is a schematic internal structural diagram of a second installation box of the present invention;

[0031] Figure 9 is a schematic structural diagram of a fixing plate of the present invention.

[0032] In the figure: 1. Cutting machine tool; 2. Y-axis sliding carriage; 3. Y-axis sliding table; 4. X-axis sliding table; 5. Laser cutter; 6. Laser cutting head; 601. Laser emitter; 602. Laser emitting head; 603. Card slot; 7. Exhaust gas treatment component; 701. Mounting sleeve; 702. Inner cavity; 703. Air inlet hole; 704. Partition board; 705. Fan; 706. Clamping and mounting unit; 7061. Vertical board; 7062. Side cylinder; 7063. Clamping rod; 7064. First spring; 7065. Connecting rod; 7066. Handle; 707. Exhaust gas absorption unit; 7071. Side box; 7072. Positioning groove; 7073. Storage box; 7074. End plate; 7075. Positioning rod; 7076. Top plate; 7077. Limit groove; 7078. Filter plate; 7079. First installation box; 70710. Air inlet pipe; 708. Air inlet control unit; 7081. Rotating groove; 7082. Connecting groove; 7083. Side groove; 7084. Circular box; 7085. Bottom pipe; 7086. Connecting air hole; 7087. First sprocket; 709. Rotating drive unit; 7091. Second installation box; 7092. Second sprocket; 7093. Chain; 7094. First gear; 7095. Double-sided toothed plate; 7096. Single-sided toothed plate; 7097. Second gear; 7098. Fixed plate; 7099. Guide frame; 70910. Connecting plate. Detailed implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0034] Given by Figures 1-9 The present invention relates to a protection device for a laser cutting machine, including a laser cutter 5 installed on a cutting machine tool 1, and a laser cutting head 6 is installed on the laser cutter 5;

[0035] The laser cutting head 6 includes a laser emitter 601 installed on the laser cutter 5. A laser emitting head 602 is installed at the bottom end of the laser emitter 601. Card slots 603 are symmetrically opened on both sides of the housing of the laser emitter 601. An exhaust gas treatment component 7 is installed outside the laser emitting head 602, and the exhaust gas treatment component 7 is used to treat the exhaust gas generated during the cutting process;

[0036] The exhaust gas treatment component 7 includes a mounting sleeve 701 sleeved outside the laser emitting head 602. An inner cavity 702 is formed inside the mounting sleeve 701. Air inlet holes 703 are formed at equal angles at the bottom end of the inner cavity 702. A partition plate 704 is installed inside the inner cavity 702. Air blowers 705 are installed at equal angles on the partition plate 704. A clamping installation unit 706 is installed at the top end of the mounting sleeve 701. The clamping installation unit 706 is used for installing the mounting sleeve 701. Exhaust gas absorption units 707 are symmetrically installed on both sides of the mounting sleeve 701. The exhaust gas absorption units 707 are used for absorbing exhaust gas.

[0037] The clamping installation unit 706 includes vertical plates 7061 symmetrically installed at the top end of the mounting sleeve 701. The two vertical plates 7061 are symmetrically arranged on both sides of the laser emitter 601. On the side of each of the two vertical plates 7061 away from each other, a side cylinder 7062 is installed. A clamping rod 7063 is movably installed inside the side cylinder 7062. The clamping rod 7063 is clamped with the clamping groove 603. A first spring 7064 is fixedly installed on the side of the clamping rod 7063 away from the laser emitter 601. One end of the first spring 7064 is fixedly connected to the inner wall of the end of the side cylinder 7062. One end of the clamping rod 7063 is installed with a connecting rod 7065. The connecting rod 7065 penetrates to the outside of the side cylinder 7062. A handle 7066 is fixedly installed at the end of the connecting rod 7065.

[0038] The exhaust gas absorption unit 707 includes side boxes 7071 fixedly installed on both sides of the installation sleeve 701. Positioning grooves 7072 are symmetrically formed at the ends of the side boxes 7071. A filter plate 7078 is installed at the top of the side box 7071. A first installation box 7079 is installed at the top of the side box 7071. An intake pipe 70710 is installed at the top of the first installation box 7079. The top of the intake pipe 70710 is communicated with the space above the partition 704 inside the inner cavity 702. An intake control unit 708 is installed inside the first installation box 7079. A rotation drive unit 709 is installed at the top of the side box 7071. A storage box 7073 is installed inside the side box 7071. The installation sleeve 701 is installed outside the laser emitting head 602. A storage box 7073 is installed inside the side boxes 7071 provided on both sides of the installation sleeve 701. The storage box 7073 is filled with chemical agents for exhaust gas treatment. The exhaust gas generated by the laser cutting driven by the partition 704 inside the installation sleeve 701 is introduced into the chemical agent to treat the exhaust gas. At the same time, the installation sleeve 701 can move together with the laser emitting head 602 to shorten the time from exhaust gas generation to exhaust gas treatment and avoid the influence on the staff due to the long time of exhaust gas. One end of the storage box 7073 is installed with an end plate 7074. Positioning rods 7075 are symmetrically installed on the end plate 7074. The positioning rods 7075 are inserted into the positioning grooves 7072. The storage box 7073 is filled with chemical agents for exhaust gas absorption. A top plate 7076 is fixedly installed at the top of the storage box 7073. The top plate 7076 is located on one side of the top of the storage box 7073 close to the installation sleeve 701. A limiting groove 7077 is formed on the side of the top plate 7076 away from the installation sleeve 701.

[0039] The intake control unit 708 includes a rotating groove 7081 formed inside the first mounting box 7079. A communicating groove 7082 is formed at the top end of the rotating groove 7081. The communicating groove 7082 communicates with the intake pipe 70710. A side groove 7083 is formed on the side of the rotating groove 7081 away from the mounting sleeve 701. A circular box 7084 is rotatably installed inside the rotating groove 7081. The outer wall of the circular box 7084 is in close contact with the inner wall of the rotating groove 7081. A bottom pipe 7085 is fixedly installed at the bottom end of the circular box 7084. The diameter of the bottom pipe 7085 is smaller than the width of the side groove 7083. A communicating air hole 7086 is formed on the top wall of the circular box 7084. The communicating air hole 7086 communicates with the communicating groove 7082. When the bottom pipe 7085 is in the longitudinal state, the bottom pipe 7085 is snapped into the limiting groove 7077, and the bottom end of the bottom pipe 7085 is inserted into the chemical agent. When the circular box 7084 rotates clockwise by 90 degrees, the bottom pipe 7085 is rotated to the horizontal state. At this time, the bottom pipe 7085 is located above the storage box 7073. A first rotating shaft is coaxially installed on the back of the circular box 7084. A first sprocket 7087 is fixedly installed at the end of the first rotating shaft. The first sprocket 7087 is located on the back of the first mounting box 7079. The circular box 7084 is rotatably installed inside the rotating groove 7081. When the bottom pipe 7085 rotates to the vertical state, the bottom end of the bottom pipe 7085 can extend into the chemical agent in the storage box 7073, so that the waste gas can be directly introduced into the chemical agent, which is convenient for treating the waste gas. At the same time, the communicating air hole 7086 on the circular box 7084 communicates with the communicating groove 7082 at this time, and the outer wall of the circular box 7084 is in close contact with the inner wall of the rotating groove 7081, improving the guiding effect on the waste gas, avoiding the escape of the waste gas, and improving the waste gas treatment effect. The circular box 7084 can rotate in the rotating groove 7081. When the bottom pipe 7085 rotates to the horizontal state along with the circular box 7084, the bottom pipe 7085 is located above the storage box 7073, which is convenient for the taking and placing of the storage box 7073. When the bottom pipe 7085 rotates to the vertical state along with the circular box 7084, the bottom pipe 7085 is snapped into the limiting groove 7077 on one side of the top plate 7076 to limit the storage box 7073, improving the stability of waste gas treatment.

[0040] The rotation drive unit 709 includes a second mounting box 7091 fixedly installed at the top end of the side box 7071. A first sprocket 7087 is rotatably installed inside the second mounting box 7091. Above the first sprocket 7087, there is a second sprocket 7092. A second rotating shaft is coaxially installed on the second sprocket 7092, and the second rotating shaft is rotatably connected to the second mounting box 7091. A chain 7093 is installed between the outer sides of the first sprocket 7087 and the second sprocket 7092. A first gear 7094 is installed on the back of the second rotating shaft. Above the first gear 7094, there is a double-sided toothed plate 7095 engaged with it. Above the double-sided toothed plate 7095, there is a single-sided toothed plate 7096. A second gear 7097 is engaged between the double-sided toothed plate 7095 and the single-sided toothed plate 7096. The second gear 7097 is rotatably installed on a fixing plate 7098. The fixing plate 7098 is fixedly installed at the top end of the side box 7071. Two guide frames 7099 are fixedly installed on the fixing plate 7098. The double-sided toothed plate 7095 and the single-sided toothed plate 7096 are respectively slidably connected to the two guide frames 7099. The top end of the single-sided toothed plate 7096 is fixedly installed with a connecting plate 70910. The connecting plate 70910 is fixedly connected to the handle 7066. When the handle 7066 is pulled outwards, it can drive the clamping rod 7063 into the side cylinder 7062, and at the same time drive the circular box 7084 to rotate, so that the bottom pipe 7085 rotates to a horizontal state, which is convenient for the installation of the storage box 7073. When the clamping rod 7063 is clamped into the clamping groove 603 to complete the fixation of the installation sleeve 701, the movement of the handle 7066 drives the circular box 7084 to rotate until the bottom pipe 7085 is in a vertical state, so as to facilitate the adjustment of the state of the bottom pipe 7085 and facilitate the waste gas treatment.

[0041] Y-axis sliding frames 2 are symmetrically installed at the top end of the cutting machine tool 1. Above the cutting machine tool 1, there is a Y-axis sliding table 3. The Y-axis sliding table 3 is slidably connected to the Y-axis sliding frames 2. An X-axis sliding table 4 is slidably installed on the Y-axis sliding table 3. A laser cutter 5 is fixedly installed on the X-axis sliding table 4. A Y-axis movement module is installed between the Y-axis sliding table 3 and the Y-axis sliding frames 2. An X-axis movement module is installed between the Y-axis sliding table 3 and the X-axis sliding table 4.

[0042] Working principle: During work, first place the equipment to be cut on the top end of the cutting machine tool 1, cut the workpiece through the laser cutting head 6, and at the same time drive the laser cutter 5 to move along the Y-axis sliding table 3 and along the Y-axis sliding frames 2 through the Y-axis movement module and the X-axis movement module to facilitate cutting;

[0043] Before cutting, chemical agents for treating exhaust gas are filled into the two storage boxes 7073. Subsequently, the two handles 7066 are pulled to move outwards. During the movement, the single-sided toothed plate 7096 is pulled to move, driving the double-sided toothed plate 7095 to move through the second gear 7097, and then driving the second sprocket 7092 to rotate through the first gear 7094. Subsequently, the first sprocket 7087 is driven to rotate through the chain 7093, thereby driving the circular box 7084 to rotate clockwise, causing the bottom pipe 7085 to rotate upwards to a horizontal state. At this time, the bottom pipe 7085 is located inside the side groove 7083. Then, the storage box 7073 is inserted into the side box 7071 until the positioning rod 7075 is inserted into the positioning groove 7072. At this time, the storage box 7073 is located below the bottom pipe 7085;

[0044] Subsequently, the mounting sleeve 701 is sleeved on the outside of the laser emitting head 602, such that the two vertical plates 7061 are respectively located on both sides of the laser emitter 601. Then, the handle 7066 is released, causing the latch rod 7063 to move towards the laser emitter 601 under the elastic force of the first spring 7064, such that the first spring 7064 is snapped into the card slot 603 to fix the mounting sleeve 701;

[0045] After the handle 7066 moves back, the single-sided toothed plate 7096 is driven to move back through the connecting plate 70910. Then, the circular box 7084 is driven to rotate back through the second gear 7097, double-sided toothed plate 7095, first gear 7094, second mounting box 7091, chain 7093, and first sprocket 7087, causing the bottom pipe 7085 to be snapped into the limit groove 7077 to limit the storage box 7073 and improve the stability of exhaust gas treatment. At the same time, the bottom end of the bottom pipe 7085 extends into the chemical agent. A rotating groove 7081 is provided in the first mounting box 7079, and the outer wall of the circular box 7084 is in close contact with the inner wall of the rotating groove 7081. The top end of the circular box 7084 is provided with a communicating air hole 7086. When the communicating air hole 7086 on the circular box 7084 is connected to the communicating groove 7082, the outer wall of the circular box 7084 can seal the side groove 7083 to prevent exhaust gas from directly discharging from the side groove 7083 and improve the stability of exhaust gas treatment;

[0046] During laser cutting, the partition plate 704 is opened, thereby driving the exhaust gas to enter the inner cavity 702 through the air inlet hole 703. Then, it enters the chemical agent through the inlet pipe 70710, communicating groove 7082, communicating air hole 7086, circular box 7084, and bottom pipe 7085, causing the chemical agent to contact the exhaust gas and treat the exhaust gas. After the remaining gas leaves the chemical agent, it is filtered and discharged through the filter plate 7078.

[0047] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective device for a laser cutting machine, comprising a laser cutter (5) installed on a cutting machine tool (1), characterized in that: A laser cutting head (6) is installed on the laser cutter (5); The laser cutting head (6) includes a laser emitter (601) installed on the laser cutter (5). A laser emitting head (602) is installed at the bottom end of the laser emitter (601). Card slots (603) are symmetrically formed on both sides of the housing of the laser emitter (601). An exhaust gas treatment component (7) is installed outside the laser emitting head (602), and the exhaust gas treatment component (7) is used for treating the exhaust gas generated during the cutting process; The exhaust gas treatment component (7) includes a mounting sleeve (701) sleeved outside the laser emitting head (602). An inner cavity (702) is formed inside the mounting sleeve (701). Air inlet holes (703) are formed at equal angles at the bottom end of the inner cavity (702). A partition plate (704) is installed inside the inner cavity (702). Air blowers (705) are installed at equal angles on the partition plate (704). A clamping and mounting unit (706) is installed at the top end of the mounting sleeve (701), and the clamping and mounting unit (706) is used for mounting the mounting sleeve (701). Exhaust gas absorption units (707) are symmetrically installed on both sides of the mounting sleeve (701), and the exhaust gas absorption units (707) are used for absorbing the exhaust gas; The exhaust gas absorption unit (707) includes side boxes (7071) fixedly installed on both sides of the mounting sleeve (701). A first mounting box (7079) is installed at the top end of the side box (7071). An air inlet control unit (708) is installed inside the first mounting box (7079). A rotation driving unit (709) is installed at the top end of the side box (7071); The air inlet control unit (708) includes a rotation groove (7081) formed inside the first mounting box (7079). A circular box (7084) is rotatably installed inside the rotation groove (7081), and the outer wall of the circular box (7084) is in close contact with the inner wall of the rotation groove (7081); A bottom pipe (7085) is fixedly installed at the bottom end of the circular box (7084). The diameter of the bottom pipe (7085) is smaller than the width of the side groove (7083). A communication air hole (7086) is formed on the top wall of the circular box (7084), and the communication air hole (7086) is communicated with the communication groove (7082). When the bottom pipe (7085) is in the longitudinal state, the bottom pipe (7085) is clamped into the limit groove (7077), and the bottom end of the bottom pipe (7085) is inserted into the chemical agent. The circular box (7084) rotates clockwise by ninety degrees to make the bottom pipe (7085) rotate to the horizontal state. At this time, the bottom pipe (7085) is located above the storage box (7073). A first rotating shaft is coaxially installed on the back of the circular box (7084), and a first sprocket (7087) is fixedly installed at the end of the first rotating shaft. The first sprocket (7087) is located on the back of the first mounting box (7079).

2. The protective device of a laser cutting machine according to claim 1, characterized in that: The clamping and installation unit (706) includes vertical plates (7061) symmetrically installed at the top of the installation sleeve (701). The two vertical plates (7061) are symmetrically arranged on both sides of the laser emitter (601). On the mutually remote sides of the two vertical plates (7061), side cylinders (7062) are installed. Inside the side cylinders (7062), clamping rods (7063) are movably installed. The clamping rods (7063) are clamped with the clamping grooves (603). On the side of the clamping rod (7063) remote from the laser emitter (601), a first spring (7064) is fixedly installed. One end of the first spring (7064) is fixedly connected to the inner wall of the end of the side cylinder (7062). One end of the clamping rod (7063) is installed with a connecting rod (7065). The connecting rod (7065) penetrates to the outside of the side cylinder (7062). At the end of the connecting rod (7065), a handle (7066) is fixedly installed.

3. The protective device of a laser cutting machine according to claim 1, characterized in that: At the end of the side box (7071), positioning grooves (7072) are symmetrically opened. At the top of the side box (7071), a filter plate (7078) is installed. At the top of the first installation box (7079), an air inlet pipe (70710) is installed. The top of the air inlet pipe (70710) is communicated with the space above the partition plate (704) inside the inner cavity (702).

4. The protective device of a laser cutting machine according to claim 3, characterized in that: Inside the side box (7071), a storage box (7073) is installed. At one end of the storage box (7073), an end plate (7074) is installed. On the end plate (7074), positioning rods (7075) are symmetrically installed. The positioning rods (7075) are inserted into the positioning grooves (7072). Inside the storage box (7073), a chemical agent for waste gas absorption is filled. At the top of the storage box (7073), a top plate (7076) is fixedly installed. The top plate (7076) is located on the side of the top of the storage box (7073) close to the installation sleeve (701). On the side of the top plate (7076) remote from the installation sleeve (701), a limiting groove (7077) is opened.

5. The protective device of a laser cutting machine according to claim 1, characterized in that: At the top of the rotating groove (7081), a communicating groove (7082) is opened. The communicating groove (7082) is communicated with the air inlet pipe (70710). On the side of the rotating groove (7081) remote from the installation sleeve (701), a side groove (7083) is opened.

6. The protective device of a laser cutting machine according to claim 1, characterized in that: The rotation driving unit (709) includes a second installation box (7091) fixedly installed at the top of the side box (7071). A first sprocket (7087) is rotatably installed inside the second installation box (7091). Above the first sprocket (7087), a second sprocket (7092) is provided. On the second sprocket (7092), a second rotating shaft is coaxially installed. The second rotating shaft is rotatably connected to the second installation box (7091). On the outer sides of the first sprocket (7087) and the second sprocket (7092), a chain (7093) is installed. On the back of the second rotating shaft, a first gear (7094) is installed.

7. The protective device of a laser cutting machine according to claim 6, characterized in that: Above the first gear (7094), a double-sided toothed plate (7095) is meshed and connected. Above the double-sided toothed plate (7095), a single-sided toothed plate (7096) is provided. A second gear (7097) is meshed and connected between the double-sided toothed plate (7095) and the single-sided toothed plate (7096). The second gear (7097) is rotatably installed on a fixing plate (7098). The fixing plate (7098) is fixedly installed at the top of the side box (7071). Two guiding frames (7099) are fixedly installed on the fixing plate (7098). The double-sided toothed plate (7095) and the single-sided toothed plate (7096) are respectively slidably connected to the two guiding frames (7099). The top of the single-sided toothed plate (7096) is fixedly installed with a connecting plate (70910). The connecting plate (70910) is fixedly connected to the handle (7066).

8. The protective device of a laser cutting machine according to claim 1, characterized in that: On the top of the cutting machine tool (1), Y-axis sliding frames (2) are symmetrically installed. Above the cutting machine tool (1), a Y-axis sliding table (3) is provided. The Y-axis sliding table (3) is slidably connected to the Y-axis sliding frames (2). An X-axis sliding table (4) is slidably installed on the Y-axis sliding table (3). The laser cutter (5) is fixedly installed on the X-axis sliding table (4). A Y-axis moving module is installed between the Y-axis sliding table (3) and the Y-axis sliding frames (2). An X-axis moving module is installed between the Y-axis sliding table (3) and the X-axis sliding table (4).

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