Multi-axis linkage laser welding machine

Abstract

The invention relates to a multi-axis linkage laser welding machine, and belongs to the technical field of laser welding machines, the multi-axis linkage laser welding machine comprises a machining table, a cabinet body is fixedly mounted on the rear side of the top of the machining table, a first adjusting sliding rail is fixedly mounted at the position, located in the cabinet body, of the top of the machining table, and a second adjusting sliding rail is fixedly mounted at the output part of the first adjusting sliding rail; a combined frame is fixedly installed on the output portion of the second adjusting sliding rail, a vertical adjusting sliding rail is fixedly installed on the surface of the combined frame, and a plasma arc welding machine head is fixedly installed on the output portion of the vertical adjusting sliding rail. The three functions of smoke dust filtering, gas cooling and product preheating are integrated in the same linkage structure, synchronous treatment of the two core problems of high temperature and dust is achieved, the occupied space and control complexity of additional execution components are reduced through energy reuse, and the energy utilization rate is increased. And the operation reliability and long-term stability of equipment can be improved.

Description

A multi-axis linkage laser welding machine Technical Field

[0001] This invention relates to the field of laser welding machine technology, specifically a multi-axis linkage laser welding machine. Background Technology

[0002] Multi-axis linkage laser welding machines are automated welding equipment that uses a high-energy-density laser beam as the welding heat source and controls multiple sets of motion axes to move in coordination through a CNC system, enabling the laser processing head to move precisely along a complex trajectory in three-dimensional space. Because multi-axis linkage laser welding machines have the characteristics of small thermal deformation, high weld quality, and high degree of automation, they are common intelligent welding system devices.

[0003] During welding operations, the high-energy-density laser beam of a multi-axis linkage laser welding machine rapidly melts and vaporizes the metal material, forming metal vapor. After the metal vapor leaves the molten pool, it reacts with oxygen in the air and condenses into extremely fine metal oxide particles, including iron oxide, aluminum oxide, and chromium oxide. At the same time, the welding process generates localized high temperatures, and the rising high-temperature fumes heat the surrounding air, increasing the internal temperature of the equipment. These high temperatures and fumes together deteriorate the processing environment, affecting the stability of welding quality and adversely impacting the normal operation of the welded joint, thus restricting the improvement of the equipment's processing accuracy and reliability.

[0004] To address the aforementioned issues, we propose a multi-axis linkage laser welding machine. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a multi-axis linkage laser welding machine. By integrating three functions—fume filtration, gas cooling, and product preheating—into the same linkage structure, it not only achieves simultaneous treatment of the two core problems of high temperature and dust, but also reduces the space occupied by additional actuators and the complexity of control through energy reuse, which is conducive to improving the operational reliability and long-term stability of the equipment.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-axis linkage laser welding machine, comprising a processing table, a cabinet fixedly installed on the rear side of the top of the processing table, a first adjusting slide rail fixedly installed inside the cabinet on the top of the processing table, a second adjusting slide rail fixedly installed at the output of the first adjusting slide rail, and a combination frame fixedly installed at the output of the second adjusting slide rail, a vertical adjusting slide rail fixedly installed on the surface of the combination frame, a plasma arc welding head fixedly installed at the output of the vertical adjusting slide rail, guide rails fixedly installed on both the left and right sides of the surface of the combination frame, and conveying components provided on opposite sides of the two guide rails, and feeding components provided on both the left and right sides of the top of the processing table below the first adjusting slide rail; the feeding components include an electric telescopic rod fixedly installed on the top of the processing table, a push shell fixedly installed at the output end of the electric telescopic rod, a placement block fixedly installed on the top of the push shell, a plurality of semiconductor cooling chips fixedly installed at the bottom of the placement block, an air suction shell fixedly installed in front of the push shell below the plurality of semiconductor cooling chips, and a plurality of air suction ports opened on the top of the air suction shell.

[0007] Furthermore, a cabinet door is rotatably connected to the front of the cabinet body, and a glass window is provided at the front of the cabinet door.

[0008] Furthermore, the two guide rails are connected by an interlocking sliding structure and are in a trapezoidal sliding fit, so that the combined frame and the conveying assembly are not affected by the movement of the second adjusting slide rail when connected, thereby ensuring the smooth pushing of the conveying assembly.

[0009] Furthermore, the vertical projections of the first and second adjusting slide rails are set perpendicular to each other, so that the assembly frame can move along the X-axis and the Y-axis.

[0010] Furthermore, both placement blocks are made of aluminum alloy, and U-shaped clips are fixedly installed on the top of each of the two placement blocks. The openings of the two U-shaped clips are arranged opposite each other to clamp and fix the product, thereby ensuring stability during the welding process. The cooling ends of the semiconductor cooling chips are located at the bottom of the placement blocks, and the heating ends of the semiconductor cooling chips are attached to the bottom of the placement blocks to preheat the placement blocks, thereby avoiding excessive temperature differences during processing and facilitating smooth welding.

[0011] Furthermore, the conveying assembly includes two movable rods fixedly installed on one side of the guide rail surface, and a push plate is fixedly installed on the side of each of the two movable rods away from the guide rail. A combination block is fixedly installed on the inner wall of the cabinet on one side of the two push plates. The combination block has a bottom cavity, a middle cavity, and a top cavity opened sequentially from bottom to top. A connecting hose is fixedly installed at the bottom of the bottom cavity. Several air inlets are opened between the middle cavity and the bottom cavity. Two vertical pipes are fixedly installed on the upper side of the inner wall of the middle cavity. Several oblique air outlets are opened on the inner wall of the top cavity near the plasma arc welding head. A push part is provided on the side of each of the two push plates near the push plate.

[0012] Furthermore, the connecting hose is made of silicone rubber, and the lower end of the connecting hose extends through into the interior of the air intake shell. Several of the air inlets are larger at the top and bottom and smaller in the middle. A dust suction port is provided on the side of the air inlet with a smaller inner diameter in the middle, close to the plasma arc welding head. A stainless steel filter screen is fixedly installed on the inner wall of the dust suction port.

[0013] Furthermore, check valves are provided at the lower ends of the two vertical pipes and on the upper side of the inner wall of several air inlets. The check valves located at the air inlets have opposite check directions to those located in the vertical pipes, so that the gas enters the middle cavity through the air inlets and then enters the top cavity. The inclined direction of the inclined air inlets is obliquely pointing towards the surface of the plasma arc welding head, so that the gas passing through the inclined air inlets is obliquely blown into the position of the plasma arc welding head.

[0014] Furthermore, the pushing part includes two pushing tooth plates fixedly installed on one side of the surface of the pushing disk, and the top of the two pushing tooth plates are meshed with pushing tooth discs. Support blocks are rotatably installed on the opposite sides of the two pushing tooth discs, and crank rods are rotatably installed on the opposite sides of the two support blocks. A pushing rod is rotatably installed on the surface of the crank rod, and a piston cylinder is provided at one end of the pushing rod.

[0015] Furthermore, the surfaces of the two support blocks are respectively fixedly connected to the surface of the combined block, and the support blocks are located on one side of the central cavity. One end of the piston cylinder extends through into the interior of the central cavity, and the piston structure inside the piston cylinder is fixedly connected to one end of the push rod, so that the push rod drives the piston cylinder to generate suction and blowing action. The two ends of the crank rod extend through to the surface of the corresponding support block, and are fixedly connected to the center position of the push gear plate, so that the push gear plate rotates under the action of the push gear plate and drives the crank rod to rotate. The crank rod, through the rotatably installed push rod, can drive the piston cylinder to generate blowing and suction action whether it rotates clockwise or counterclockwise. A corrugated protective cylinder is fixedly installed on the periphery of the surface of the push plate, and one end of the corrugated protective cylinder is fixedly connected to one side of the surface of the combined block. The corrugated protective cylinder covers the outside of the entire push part.

[0016] Compared with the prior art, the present invention provides a multi-axis linkage laser welding machine with the following beneficial effects: 1. The device actively collects and filters the generated fumes by driving the filter adsorption structure during the processing, avoiding the deposition of fumes in key parts such as optical components, guide rails, and electrical components, ensuring the self-circulation filtration effect of the gas inside the device, and reducing the interference of fumes on welding quality and equipment stability.

[0017] 2. While filtering smoke and dust, the device cools the high-temperature gas that is drawn in through a refrigeration structure and then reintroduces the cooled gas into the welding machine to form a circulating cooling system. This can alleviate problems such as thermal drift of optical components and thermal deformation of the machine bed, thereby providing a more stable temperature environment for multi-axis linkage welding and improving processing accuracy and consistency.

[0018] 3. This device makes full use of the heat generated by the cooling structure during operation and guides this heat to the area of ​​the product to be welded for preheating. Preheating can reduce the temperature gradient at the beginning of welding and reduce the probability of welding defects such as cracks and porosity. It is especially suitable for welding scenarios of highly reactive materials, dissimilar materials or thick plates, which improves the welding quality and the energy utilization efficiency of the equipment. Attached Figure Description

[0019] Figure 1 is an overall perspective view of the present invention; Figure 2 is an unfolded perspective view of the cabinet door of the present invention; Figure 3 is a combined perspective view of the conveying component and the feeding component of the present invention; Figure 4 is a vertical sectional perspective view of the air intake shell of the present invention; Figure 5 is an enlarged structural schematic diagram of part A in Figure 4; Figure 6 is a vertical sectional perspective view of the combined block of the present invention; Figure 7 is an enlarged structural schematic diagram of part B in Figure 6; Figure 8 is a cross-sectional perspective view of the corrugated protective cylinder of the present invention; Figure 9 is an enlarged structural schematic diagram of part C in Figure 9; Figure 10 is a top view of the corrugated protective cylinder of the present invention; Figure 11 is an enlarged structural schematic diagram of part D in Figure 10.

[0020] In the diagram: 1. Processing table; 2. Cabinet; 201. Cabinet door; 202. Glass window; 3. First adjusting slide rail; 4. Second adjusting slide rail; 401. Combination frame; 5. Vertical adjusting slide rail; 6. Plasma arc welding head; 7. Guide rail; 8. Conveying assembly; 801. Moving rod; 802. Push plate; 803. Combination block; 804. Bottom cavity; 805. Middle cavity; 806. Top cavity; 807. Connecting hose; 808. Air inlet; 8081. Dust suction port; 8082. Stainless steel filter screen ; 809, Vertical pipe; 8091, Check valve; 810, Inclined air inlet; 9, Feeding assembly; 901, Electric telescopic rod; 902, Pushing shell; 903, Placement block; 9031, U-shaped locking block; 904, Semiconductor cooling chip; 905, Suction shell; 906, Suction port; 10, Pushing part; 1001, Pushing toothed plate; 1002, Pushing toothed disc; 1003, Support block; 1004, Crank rod; 1005, Pushing rod; 1006, Piston cylinder; 11, Corrugated protective cylinder. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please refer to Figures 1 to 4. In this embodiment, a multi-axis linkage laser welding machine includes a processing table 1. A cabinet 2 is fixedly installed on the rear side of the top of the processing table 1. A cabinet door 201 is rotatably connected to the front of the cabinet 2. A glass window 202 is provided at the front of the cabinet door 201 to facilitate observation of the internal welding process. A first adjusting slide rail 3 is fixedly installed inside the cabinet 2 on the top of the processing table 1. A second adjusting slide rail 4 is fixedly installed at the output of the first adjusting slide rail 3. A combination frame 401 is fixedly installed at the output of the second adjusting slide rail 4. A vertical adjusting slide rail 5 is fixedly installed on the surface of the combination frame 401. The output of the vertical adjusting slide rail 5... A plasma arc welding head 6 is fixedly installed. The vertical projections of the first adjusting slide rail 3 and the second adjusting slide rail 4 are perpendicular to each other, allowing the combined frame 401 to move in the X and Y axes. Combined with the Z-axis movement of the vertical adjusting slide rail 5, this achieves precise positioning of the plasma arc welding head 6 in three-dimensional space. Guide rails 7 are fixedly installed on both the left and right sides of the combined frame 401. The two guide rails 7 are connected by an interlocking sliding structure, and they slide in a trapezoidal fit. This ensures that the combined frame 401 and the conveying assembly 8 are not affected by the movement of the second adjusting slide rail 4 when connected, thus ensuring the smooth operation of the conveying assembly 8. The two guide rails 7 are equipped with conveying components 8 on opposite sides. Feeding components 9 are located on the left and right sides of the top of the processing table 1, below the first adjusting slide rail 3. Each feeding component 9 includes an electric telescopic rod 901 fixedly installed on the top of the processing table 1. A pusher housing 902 is fixedly installed at the output end of the electric telescopic rod 901. A placement block 903 is fixedly installed on the top of the pusher housing 902. Both placement blocks 903 are made of aluminum alloy and have good thermal conductivity. U-shaped locking blocks 9031 are fixedly installed on the top of each placement block 903, with their openings facing each other for locking. To fix the product and ensure stability during the welding process, several semiconductor cooling chips 904 are fixedly installed at the bottom of the placement block 903. The cooling end of the semiconductor cooling chip 904 is located at the lower part of the placement block 903, and the heating end of the semiconductor cooling chip 904 is attached to the bottom of the placement block 903 to heat and preheat the placement block 903, so as to avoid excessive temperature difference during the processing of the product, assist the welding process of the product, and facilitate the smooth progress of welding. A suction shell 905 is fixedly installed at the front of the push shell 902 below the several semiconductor cooling chips 904, and several suction ports 906 are opened on the top of the suction shell 905.The conveying assembly 8 includes two movable rods 801 fixedly installed on one side of the guide rail 7. A push plate 802 is fixedly installed on the side of each movable rod 801 away from the guide rail 7. A combination block 803 is fixedly installed on the inner wall of the cabinet 2 on one side of the two push plates 802. The combination block 803 has a bottom cavity 804, a middle cavity 805, and a top cavity 806 sequentially formed from bottom to top. A connecting hose 807, made of silicone rubber, is fixedly installed at the bottom of the bottom cavity 804, and its lower end extends through to the interior of the air intake shell 905. Several air vents 808 are formed between the middle cavity 805 and the bottom cavity 804. All air inlets 808 have larger openings at the top and bottom and smaller openings in the middle. A dust suction port 8081 is located on the side of the air inlet 808 with a smaller inner diameter near the plasma arc welding head 6. A stainless steel filter screen 8082 is fixedly installed on the inner wall of the dust suction port 8081. Two vertical pipes 809 are fixedly installed on the upper side of the inner wall of the central cavity 805. Check valves 8091 are installed at the lower ends of the two vertical pipes 809 and on the upper side of the inner wall of several air inlets 808. The check valves 8091 located at the air inlets 808 have opposite check directions to the check valves 8091 located in the vertical pipes 809, ensuring that gas can only pass through the air inlets 808 from the bottom cavity 80. 4. The gas enters the middle cavity 805 and then enters the top cavity 806 through the vertical pipe 809, forming a unidirectional flow. Several oblique air inlets 810 are provided on the inner wall of the top cavity 806 near the plasma arc welding head 6. The oblique air inlets 810 are inclined towards the surface of the plasma arc welding head 6, so that the gas passing through the oblique air inlets 810 is obliquely blown into the position of the plasma arc welding head 6. Pushing parts 10 are provided on the surface of both push plates 802 near the assembly block 803. Each pushing part 10 includes two pushing tooth plates 1001 fixedly installed on one side of the surface of the push plate 802. The top of each of the two push gear disks 1002 is meshed with a push gear disk 1002. Support blocks 1003 are rotatably mounted on the opposite sides of the two push gear disks 1002. The surfaces of the two support blocks 1003 are fixedly connected to the surfaces of the combined block 803, and the support blocks 1003 are located on one side of the central cavity 805. Crank rods 1004 are rotatably mounted on the opposite sides of the two support blocks 1003. The two ends of the crank rods 1004 extend through to the surfaces of the corresponding support blocks 1003 and are fixedly connected to the center of the push gear disks 1002, so that the push gear disks 1002 rotate under the action of the push gear plate 1001 and drive the crank rods 1004 to rotate.A push rod 1005 is rotatably mounted on the surface of the crankshaft 1004. A piston cylinder 1006 is provided at one end of the push rod 1005. One end of the piston cylinder 1006 extends through into the interior of the central cavity 805, and the piston structure inside the piston cylinder 1006 is fixedly connected to one end of the push rod 1005. The crankshaft 1004, through the rotatably mounted push rod 1005, can drive the piston cylinder 1006 to generate blowing and sucking actions, whether rotated clockwise or counterclockwise. A corrugated protective cylinder 11 is fixedly mounted on the periphery of the surface of the push plate 802, and one end of the corrugated protective cylinder 11 is fixedly connected to one side of the surface of the assembly block 803. The corrugated protective cylinder 11 covers the entire exterior of the push part 10 to protect the push part 10 from external dust or welding slag.

[0023] The working principle of the multi-axis linkage laser welding machine in this embodiment is as follows: When the device is in use, the operator places the product to be welded on the placement blocks 903 of the left and right feeding components 9 respectively, and fixes the product by the U-shaped clamping blocks 9031 arranged opposite to each other. The semiconductor cooling chip 904 is activated, and the heat generated by its heating end is conducted to the aluminum alloy placement blocks 903 to preheat the product, reduce the temperature difference between the product and the high-temperature plasma arc during welding, and prevent the product from deforming or cracking due to thermal shock. At the same time, the electric telescopic rod 901 is activated, which drives the push shell 902 and the placement blocks 903 to move into the cabinet 2, and transport the product to the welding station. The processing table 1 in this application is equipped with a control terminal, which can conveniently control the operation of the entire device. This effect is a mature existing technology. The control terminal on the processing table 1 drives the first adjusting slide rail 3 and the second adjusting slide rail 4. The action is as follows: since the vertical projections of the first adjusting slide rail 3 and the second adjusting slide rail 4 are perpendicular to each other, the two work together to enable the combined frame 401 and the vertical adjusting slide rail 5 installed on it to achieve planar movement in the X and Y axes. The vertical adjusting slide rail 5 further drives the plasma arc welding head 6 to move in the Z axis direction, thereby precisely controlling the spatial position of the plasma arc welding head 6 and performing high-precision welding on the product. During the welding process, the conveying component 8 works synchronously. When the plasma arc welding head 6 moves, the guide rail 7 drives the push disk 802 to move relative to the combined block 803 through the moving rod 801. When the push disk 802 moves, the push tooth plate 1001 on it drives the push tooth disk 1002 that meshes with it to rotate. The push tooth disk 1002 drives the crank rod 1004 to rotate. The crank rod 1004 drives the piston in the piston cylinder 1006 to reciprocate through the push rod 1005.Because the two check valves 8091 have opposite check directions, when the piston cylinder 1006 performs the suction action, a negative pressure is formed in the middle cavity 805, causing the check valve 8091 in the air guide port 808 to open. The gas in the bottom cavity 804 is then drawn into the middle cavity 805 through the connecting hose 807 and the air guide port 808. During this process, the dust suction port 8081 in the middle of the air guide port 808 utilizes the increased flow velocity and decreased pressure of the gas flowing through the smaller inner diameter to generate localized dust suction at the dust suction port 8081. Negative pressure draws fumes and spatter generated during welding into the suction port 8081, where they are filtered by a stainless steel filter screen 8082 and then enter the middle cavity 805 along with the gas. A connecting hose 807 also draws in gas cooled by a semiconductor refrigeration chip 904 near the suction shell 905, which then enters the middle cavity 805 through the air guide port 808. When the piston cylinder 1006 blows air, the pressure inside the middle cavity 805 increases, causing the vertical pipe 809 to... The internal check valve 8091 opens, allowing cooled gas to enter the top cavity 806 from the middle cavity 805 via the vertical pipe 809, and finally be blown out obliquely from the inclined air outlet 810, precisely targeting the welding area of ​​the plasma arc welding head 6. The obliquely blown airflow provides protective gas to the welding area and removes residual trace amounts of fumes, ensuring welding quality. Furthermore, the cooled gas maintains the cooling effect inside the cabinet 2, preventing the impact of high temperatures on the processing environment. As the plasma arc welding head 6 moves continuously during the welding process, the push plate 802 continuously drives the push section 10 to reciprocate, causing the piston cylinder 1006 to alternately pump and blow air, achieving continuous collection of welding fumes and a continuous supply of protective and cooling gas. The corrugated protective cylinder 11 extends and retracts with the movement of the push plate 802, always enveloping the push section 10, effectively preventing spatter or external dust from entering the moving parts of the push section 10, ensuring the long-term stable operation of the transmission mechanism.

[0024] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A multi-axis linkage laser welding machine, comprising a processing table (1), a cabinet (2) fixedly installed on the rear side of the top of the processing table (1), a first adjusting slide rail (3) fixedly installed inside the cabinet (2) on the top of the processing table (1), a second adjusting slide rail (4) fixedly installed on the output part of the first adjusting slide rail (3), and a combination frame (401) fixedly installed on the output part of the second adjusting slide rail (4), a vertical adjusting slide rail (5) fixedly installed on the surface of the combination frame (401), and a plasma arc welding head (6) fixedly installed on the output part of the vertical adjusting slide rail (5), characterized in that: Guide rails (7) are fixedly installed on both the left and right sides of the surface of the combined frame (401), and conveying components (8) are provided on the opposite sides of the two guide rails (7). Feeding components (9) are provided on both the left and right sides of the top of the processing table (1) below the first adjusting slide rail (3). The feeding component (9) includes an electric telescopic rod (901) fixedly installed on the top of the processing table (1), and a push shell (902) is fixedly installed at the output end of the electric telescopic rod (901). A placement block (903) is fixedly installed on the top of the push shell (902), and several semiconductor cooling chips (904) are fixedly installed at the bottom of the placement block (903). An air suction shell (905) is fixedly installed in front of the push shell (902) below the several semiconductor cooling chips (904), and several air suction ports (906) are opened on the top of the air suction shell (905).

2. The multi-axis linkage laser welding machine according to claim 1, characterized in that: The cabinet (2) is rotatably connected to a cabinet door (201) and a glass window (202) is provided at the front of the cabinet door (201).

3. The multi-axis linkage laser welding machine according to claim 2, characterized in that: The two guide rails (7) are connected by a sliding interlocking structure and are in a trapezoidal sliding fit so that the combination frame (401) and the conveying component (8) are not affected by the movement of the second adjusting slide rail (4) when connected, thereby ensuring the smooth pushing of the conveying component (8).

4. A multi-axis linkage laser welding machine according to claim 1, characterized in that: The vertical projections of the first adjusting slide rail (3) and the second adjusting slide rail (4) are set perpendicular to each other so that the assembly frame (401) can move along the X-axis and the Y-axis.

5. A multi-axis linkage laser welding machine according to claim 1, characterized in that: Both placement blocks (903) are made of aluminum alloy, and U-shaped clips (9031) are fixedly installed on the top of each of the two placement blocks (903), with the openings of the two U-shaped clips (9031) facing each other; the cooling ends of a plurality of semiconductor cooling chips (904) are located at the bottom of the placement block (903), and the heating ends of the semiconductor cooling chips (904) are attached to the bottom of the placement block (903).

6. A multi-axis linkage laser welding machine according to claim 1, characterized in that: The conveying assembly (8) includes two movable rods (801) fixedly installed on one side of the guide rail (7), and a push plate (802) is fixedly installed on the side of each of the two movable rods (801) away from the guide rail (7). A combination block (803) is fixedly installed on the inner wall of the cabinet (2) on one side of the two push plates (802). The combination block (803) has a bottom cavity (804), a middle cavity (805), and a top cavity (806) sequentially opened from bottom to top. A connecting hose (807) is fixedly installed at the bottom of the 04), and several air inlets (808) are opened between the middle cavity (805) and the bottom cavity (804). Two vertical pipes (809) are fixedly installed on the upper side of the inner wall of the middle cavity (805). Several oblique air inlets (810) are opened on the side of the inner wall of the top cavity (806) near the plasma arc welding head (6). A pushing part (10) is provided on the side of the surface of the two pushing discs (802) near the pushing disc (802).

7. A multi-axis linkage laser welding machine according to claim 6, characterized in that: The connecting hose (807) is made of silicone rubber, and the lower end of the connecting hose (807) extends through to the interior of the air intake shell (905). Several of the air inlets (808) are larger at the top and bottom and smaller in the middle. A dust suction port (8081) is provided on the side of the air inlet (808) with a smaller inner diameter in the middle and close to the plasma arc welding head (6). A stainless steel filter screen (8082) is fixedly installed on the inner wall of the dust suction port (8081).

8. A multi-axis linkage laser welding machine according to claim 6, characterized in that: Check valves (8091) are provided at the lower ends of the two vertical pipes (809) and on the upper side of the inner wall of several air inlets (808). The check valves (8091) located at the air inlets (808) and the check valves (8091) located at the vertical pipes (809) have opposite check directions. The inclined air inlets (810) are inclined towards the surface of the plasma arc welding head (6).

9. A multi-axis linkage laser welding machine according to claim 6, characterized in that: The pushing part (10) includes two pushing tooth plates (1001) fixedly installed on one side of the surface of the pushing disk (802), and the top of the two pushing tooth plates (1001) are meshed with the pushing tooth disk (1002). Support blocks (1003) are rotatably installed on the opposite sides of the two pushing tooth disks (1002). Crank rods (1004) are rotatably installed on the opposite sides of the two support blocks (1003). A pushing rod (1005) is rotatably installed on the surface of the crank rod (1004), and a piston cylinder (1006) is provided at one end of the pushing rod (1005).

10. A multi-axis linkage laser welding machine according to claim 9, characterized in that: The surfaces of the two support blocks (1003) are fixedly connected to the surface of the assembly block (803), and the support block (1003) is located on one side of the central cavity (805). One end of the piston cylinder (1006) extends through into the interior of the central cavity (805), and the piston structure inside the piston cylinder (1006) is fixedly connected to one end of the push rod (1005). The two ends of the crank rod (1004) extend through into the surface of the corresponding support block (1003), and are fixedly connected to the center position of the push gear plate (1002). A corrugated protective cylinder (11) is fixedly installed on the periphery of the surface of the push plate (802), and one end of the corrugated protective cylinder (11) is fixedly connected to one side of the surface of the assembly block (803). The corrugated protective cylinder (11) covers the entire push part (10).

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