High-vacuum high-power laser welding equipment

Abstract

The invention relates to high-vacuum high-power laser welding equipment, and belongs to the field of laser welding devices. High-vacuum high-power laser welding equipment comprises a welding box, a welding mechanism, a vacuum mechanism and a gas balance mechanism. A containing cavity used for containing a to-be-welded piece is formed in the welding box. The welding mechanism is used for providing a laser beam into the accommodating cavity to weld a to-be-welded part; the vacuum mechanism is communicated with the accommodating cavity and is used for driving gas to leave the accommodating cavity; the gas balance mechanism is used for providing protective gas into the containing cavity.

Description

Technical Field

[0001] The present invention belongs to the field of laser welding devices, and particularly relates to a high-vacuum high-power laser welding equipment. Background Art

[0002] During the welding process, if harmful materials (such as metals or their compounds containing lead, cadmium, chromium, zinc, nickel, etc.) are involved, harmful gases or fumes may be generated. Inhaling harmful gases or metal fumes may cause respiratory irritation, coughing, asthma, and even lead to lung diseases (such as pneumoconiosis). The fumes of certain metals (such as lead and manganese) may damage the nervous system, resulting in symptoms such as headaches and memory loss. Long-term exposure to certain harmful gases (such as hexavalent chromium and benzene) may increase the risk of cancer. In summary, harmful gases or fumes will pose hazards to the health of operators and the environment. Summary of the Invention

[0003] In view of the above problems, the embodiments of the present application provide a high-vacuum high-power laser welding equipment, which can reduce the harm of welding to the operator when welding harmful materials.

[0004] The embodiments of the present application provide a high-vacuum high-power laser welding equipment, including a welding box, a welding mechanism, a vacuum mechanism, and a gas balance mechanism. The welding box has a receiving cavity for accommodating the workpiece to be welded; the welding mechanism is used to provide a laser beam into the receiving cavity to weld the workpiece to be welded; the vacuum mechanism is communicated with the receiving cavity to drive the gas to leave the receiving cavity; the gas balance mechanism is used to provide a protective gas into the receiving cavity.

[0005] Specifically, during the welding process, first place the workpiece to be welded in the receiving cavity, and drive the gas to leave the receiving cavity through the vacuum mechanism, so that the inside of the receiving cavity is in a negative pressure. Subsequently, provide a laser beam to the workpiece to be welded through the welding mechanism to weld the laser beam. During the welding process, drive the harmful gases generated by welding to leave the receiving cavity through the vacuum mechanism, so that the harmful gases are collected, thereby reducing the harm of the harmful gases to the operator. Subsequently, close the vacuum mechanism. The gas balance mechanism is used to provide a protective gas into the receiving cavity. On the one hand, it protects the weld from reacting with air and oxidizing at high temperature. On the other hand, it makes the pressure inside the receiving cavity balance with the outside, so as to facilitate the operator to open the welding box.

[0006] In some embodiments, the welding mechanism further includes a light-transmitting glass and a three-axis driving platform. The light-transmitting glass is arranged on the welding box and is used to cover the light inlet; the three-axis driving platform is arranged on the welding box, and the laser emitter is arranged on the three-axis driving platform. The three-axis driving platform is used to drive the laser emitter to move in a first direction, a second direction, and a third direction, and the first direction, the second direction, and the third direction are perpendicular to each other in pairs.

[0007] In the above technical solution, the light-transmitting glass is disposed in the welding box and used to cover the light inlet, so that there is no need for the laser emitter to block the light inlet, and thus it is convenient for the three-axis drive platform to drive the laser emitter to move in the first direction, the second direction, and the third direction, so as to facilitate the laser beam to weld the welds at different positions.

[0008] In some embodiments, the welding box includes a box body, a clamping mechanism, and a glove assembly. The box body has the accommodation cavity therein, and the box body has a glove hole communicating with the accommodation cavity; the clamping mechanism is disposed in the box body and used to clamp the workpiece to be welded; the glove assembly is inserted into the accommodation cavity through the glove hole and blocks the glove hole, and the hand is inserted into the glove assembly to hold the workpiece to be welded through the glove assembly.

[0009] In the above technical solution, the glove assembly is inserted into the accommodation cavity through the glove hole and blocks the glove hole, and the hand is inserted into the glove assembly to hold the workpiece to be welded through the glove assembly, so as to facilitate the operator to fix the workpiece to be welded on the clamping mechanism in the preparation stage.

[0010] In some embodiments, the glove assembly includes a second housing, an end cap, a glove body, and a first pipeline. The second housing is disposed outside the box body and wound around the outer periphery of the glove hole, and an opening is provided at one end of the second housing away from the glove hole; the end cap is disposed on the second housing and used to open and close the opening; the glove body is inserted into the accommodation cavity through the glove hole and blocks the glove hole; a glove cavity is formed by enclosing the inner surfaces of the second housing, the end cap, and the glove body, and the first pipeline communicates the glove cavity and the accommodation cavity.

[0011] Specifically, in the preparation stage, the end cap is opened to facilitate the operator to insert the hand into the glove cavity through the opening. After the workpiece to be welded is fixed by the clamping mechanism, the opening can be covered by the end cap. At this time, the glove cavity is communicated with the accommodation cavity through the first pipeline and is isolated from the outside.

[0012] In the above technical solution, the first pipeline communicates the glove cavity and the accommodation cavity, so as to prevent the glove body from being burst due to the pressure in the accommodation cavity and the glove cavity during the welding process.

[0013] In some embodiments, the first pipeline includes a first valve body, a second valve body, and a first connecting pipe. The first valve body communicates with the glove cavity; the second valve body communicates with the accommodation cavity; the first connecting pipe connects the first valve body and the second valve body. The first valve body is used to communicably isolate the glove cavity and the first connecting pipe, and the second valve body is used to communicably isolate the accommodation cavity and the first connecting pipe.

[0014] Specifically, in the preparation stage, the first valve body and the second valve body isolate the first connecting pipe, the glove chamber, and the accommodation chamber. Before the welding process, the vacuum mechanism is turned on, and then the first valve body and the second valve body no longer isolate the first connecting pipe, the glove chamber, and the accommodation chamber. Subsequently, the first valve body and the second valve body isolate the first connecting pipe, the glove chamber, and the accommodation chamber and start welding to prevent dangerous gases from entering the glove chamber. After welding is completed, the vacuum mechanism is turned off, and the gas balance mechanism is turned on and the first valve body and the second valve body no longer isolate the first connecting pipe, the glove chamber, and the accommodation chamber.

[0015] In the above technical solution, the first valve body and the second valve body control whether the first connecting pipe communicates with the glove chamber and the accommodation chamber, thereby reducing the risk of harmful gases entering the glove chamber and endangering the operator.

[0016] In some embodiments, the clamping mechanism includes a driving member, a second magnetic coupling, and a chuck. The driving member is disposed outside the box body and has a driving end; the second magnetic coupling has a second driving end connected to the driving end and a second driven end disposed in the accommodation chamber; the chuck is used for clamping the workpiece to be welded and is connected to the second driven end.

[0017] In the above technical solution, the second magnetic coupling can facilitate the driving member to drive the chuck to rotate while ensuring the sealing performance of the housing. At the same time, since the chuck is disposed in the housing in a state of the same pressure, the risk of the pressure difference caused by different pressures hindering the rotation of the chuck is reduced.

[0018] In some embodiments, the clamping mechanism further includes a lead screw, a magnetic fluid seal, and a tailstock. The lead screw has a first end located outside the box body and a second end located in the accommodation chamber; the lead screw is rotatably disposed on the box body through the magnetic fluid seal, and the lead screw can rotate relative to the box body and move along the axis of the lead screw; the tailstock is disposed at the second end, and the tailstock is used to press the workpiece to be welded against the chuck.

[0019] In the above technical solution, the structure of driving the tailstock to move by the lead screw is simple and easy to implement. At the same time, due to the strong self-locking performance of the lead screw, the risk of the tailstock moving due to the pressure difference caused by different pressures is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1Schematic structural diagram of the high-vacuum high-power laser welding equipment provided by an embodiment of the present invention;

[0022] Figure 2 Schematic structural diagram of the vacuum mechanism provided by an embodiment of the present invention;

[0023] Figure 3 Cross-sectional view of the high-vacuum high-power laser welding equipment provided by an embodiment of the present invention;

[0024] Figure 4 Schematic structural diagram of another part of the welding mechanism provided by an embodiment of the present invention;

[0025] Figure 5 Partial cross-sectional view of the high-vacuum high-power laser welding equipment provided by an embodiment of the present invention;

[0026] Figure 6 Schematic structural diagram of the clamping mechanism provided by an embodiment of the present invention. Detailed implementation manners

[0027] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0029] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0030] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0031] During the welding process, if hazardous materials (such as metals or their compounds containing lead, cadmium, chromium, zinc, nickel, etc.) are involved, harmful gases or fumes may be generated. Inhaling harmful gases or metal fumes can cause respiratory irritation, coughing, wheezing, and even lead to lung diseases (such as pneumoconiosis). The fumes of certain metals (such as lead and manganese) may damage the nervous system, resulting in symptoms such as headaches and memory loss. Long-term exposure to certain harmful gases (such as hexavalent chromium and benzene) may increase the risk of cancer. In summary, harmful gases or fumes can pose hazards to the health of operators and the environment.

[0032] To solve the above technical problems, please refer to Figure 1 , an embodiment of the present application provides a high-vacuum high-power laser welding device 100, including a welding chamber 10, a welding mechanism 20, a vacuum mechanism 30, and a gas balance mechanism 40. The welding chamber 10 has a receiving cavity 111 for accommodating the workpiece to be welded; the welding mechanism 20 is used to provide a laser beam into the receiving cavity 111 to weld the workpiece to be welded; the vacuum mechanism 30 is connected to the receiving cavity 111 to drive the gas out of the receiving cavity 111; the gas balance mechanism 40 is used to provide a protective gas into the receiving cavity 111.

[0033] In some embodiments, the welding chamber 10 is connected to the high-vacuum mechanism 30 to form the main body of the device. The welding mechanism 20 is fixed to the top of the welding chamber 10. The gas balance mechanism 40 is fixed to the bottom of the welding chamber 10.

[0034] In some embodiments, please refer to Figure 2 , the vacuum mechanism 30 includes a first high-vacuum pneumatic baffle valve 31, a cold trap 32, an oil diffusion pump 33, a Roots pump 34, a rotary vane pump 35, a second high-vacuum baffle valve 36, and a second pipeline. The oil diffusion pump 33, the cold trap 32, and the second high-vacuum pneumatic baffle valve are connected in sequence. The Roots pump 34 and the rotary vane pump 35 are connected to the first high-vacuum pneumatic baffle valve 31 and the oil diffusion pump 33 through the second high-vacuum baffle valve 36 and the second pipeline 37.

[0035] Among them, the cold trap 32 is mainly used to capture the vapor and gas in the vacuum system, especially those substances that will condense at low temperatures. It condenses these vapors by cooling to prevent them from entering the pump or other sensitive equipment, so as to protect the pump and prevent contamination. The oil diffusion pump 33 generates a high-speed vapor flow by heating the oil. These vapor flows push the gas molecules from the high-vacuum area to the low-vacuum area, thereby creating a high vacuum. The Roots pump 34 is a positive-displacement pump that transports gas by the rotation of two meshing rotors in the pump chamber. It does not directly compress the gas, but transports the gas from the inlet to the outlet through the rotation of the rotors. The rotary vane pump 35 forms a sealed chamber in the pump chamber by the rotation of the vanes. As the vanes rotate, the gas is sucked in, compressed and discharged. It is a commonly used mechanical vacuum pump. The working principle of the high-vacuum baffle valve is based on the opening and closing movement of the baffle. The movement of the baffle is driven by the actuator to control the gas flow. Specifically, when the actuator receives the control signal, it will drive the movement of the baffle through a motor or a pneumatic device. In the closed state, the baffle fits tightly on the valve body to form an airtight seal to prevent gas leakage; in the open state, a certain gap is formed between the baffle and the valve body to allow gas to pass through. The high-vacuum baffle valve consists of a valve body, a baffle and an actuator. The actuator can be a motor or a pneumatic device, and drives the movement of the baffle through the control signal. The sealing surface between the baffle and the valve seat needs to have good sealing performance to prevent gas leakage. In addition, the movement of the baffle must be stable and reliable to ensure that the opening and closing process of the valve does not produce vibration or jamming phenomena.

[0036] The gas balance mechanism 40 can be a gas tank for storing the protective gas or an air extraction device communicated with the gas source for storing the protective gas.

[0037] The protective gas can be nitrogen, helium, argon, etc.

[0038] Specifically, during the welding process, the workpiece to be welded is first placed in the accommodation cavity 111, and the vacuum mechanism 30 drives the gas to leave the accommodation cavity 111 so that the inside of the accommodation cavity 111 is in a negative pressure state. Subsequently, the welding mechanism 20 provides a laser beam to the workpiece to perform laser beam welding. During the welding process, the vacuum mechanism 30 drives the harmful gas generated by the welding to leave the accommodation cavity 111, so that the harmful gas is collected, thereby reducing the harm to the operator. Subsequently, the vacuum mechanism 30 is closed, and the gas balance mechanism 40 is used to provide a protective gas to the accommodation cavity 111. On the one hand, it protects the weld from reacting with air and oxidizing at high temperature, and on the other hand, it makes the pressure inside the accommodation cavity 111 balance with the outside world, so as to facilitate the operator to open the welding box 10.

[0039] In this technical solution, the through hole is covered by a protective glass, so that while the laser beam can pass through the through hole, metal vapor is prevented from entering the first cavity through the through hole, thereby reducing the risk of metal vapor contaminating the lens of the laser emitter. At the same time, the protective glass is driven to rotate by a driving component, so that after the metal vapor is coated on the protective glass, the driving component can drive the protective glass to rotate, and then different parts of the protective glass cover the through hole, thereby reducing the frequency of replacing the protective glass.

[0040] According to some embodiments of the present application, please refer to Figure 4 , the welding mechanism 20 further includes a light-transmitting glass 24 and a three-axis driving platform 26. The light-transmitting glass is arranged in the welding box 10 and is used to cover the light inlet; the three-axis driving platform 26 is arranged in the welding box 10, the laser emitter 25 is arranged on the three-axis driving platform 26, and the three-axis driving platform 26 is used to drive the laser emitter 25 to move in the first direction, the second direction and the third direction, and the first direction, the second direction and the third direction are perpendicular to each other in pairs.

[0041] In some embodiments, the three-axis driving platform 26 is a driving platform composed of three linear modules 261 respectively extending in the first direction, the second direction and the third direction.

[0042] In this technical solution, the light-transmitting glass is arranged in the welding box 10 and is used to cover the light inlet, so that there is no need for the laser emitter 25 to block the light inlet, and then it is convenient for the three-axis driving platform 26 to drive the laser emitter 25 to move in the first direction, the second direction and the third direction, so as to facilitate the laser beam to weld the welds at different positions.

[0043] According to some embodiments of the present application, please refer to Figure 2 , and please refer to Figure 5 , the welding box 10 includes a box body 11, a clamping mechanism 12 and a glove assembly 13. The box body 11 has a receiving cavity 111, and the box body 11 has a glove hole communicating with the receiving cavity 111; the clamping mechanism 12 is arranged in the box body 11 and is used to clamp the workpiece to be welded; the glove assembly 13 is inserted into the receiving cavity 111 through the glove hole and blocks the glove hole, and the hand is inserted into the glove assembly 13 to hold the workpiece to be welded through the glove assembly 13.

[0044] In some embodiments, the box body 11 has a feeding port 112 communicating with the receiving cavity 111, and a cover plate for opening and closing the feeding port 112 is provided.

[0045] In some embodiments, an observation window is provided on the box body 11, and a lighting device is provided at the top of the receiving cavity 111 to facilitate the operator to observe the workpiece to be welded and fix the workpiece to be welded through the clamping mechanism 12. At the same time, a water cooling device for cooling the laser emitter 25 can also be provided at the top of the box body 11.

[0046] In this technical solution, the glove assembly 13 is inserted into the accommodation cavity 111 through the glove hole and seals the glove hole. The hand is inserted into the glove assembly 13 to hold the workpiece to be welded through the glove assembly 13, so as to facilitate the operator to fix the workpiece to be welded on the clamping mechanism 12 in the preparation stage.

[0047] According to some embodiments of the present application, please refer to Figure 5 , the glove assembly 13 includes a second housing 131, an end cap 132, a glove body 133, and a first pipeline 134. The second housing 131 is disposed outside the box body 11 and surrounds the outer periphery of the glove hole. One end of the second housing 131 away from the glove hole is provided with an opening; the end cap 132 is disposed on the second housing 131 and is used to open and close the opening; the glove body 133 is inserted into the accommodation cavity 111 through the glove hole and seals the glove hole; the inner surfaces of the second housing 131, the end cap 132, and the glove body 133 enclose to form a glove cavity 1331, and the first pipeline 134 communicates the glove cavity 1331 and the accommodation cavity 111.

[0048] Specifically, in the preparation stage, the end cap 132 is opened so that the operator can insert the hand into the glove cavity 1331 through the opening. After the workpiece to be welded is fixed by the clamping mechanism 12, the opening can be sealed by the end cap 132. At this time, the glove cavity 1331 is communicated with the accommodation cavity through the first pipeline 134 and is isolated from the outside.

[0049] In this technical solution, the first pipeline 134 communicates the glove cavity 1331 and the accommodation cavity 111, thereby preventing the glove body 133 from being burst due to the pressure in the accommodation cavity 111 and the glove cavity 1331 during the welding process.

[0050] According to some embodiments of the present application, please refer to Figure 5 , the first pipeline 134 includes a first valve body 1341, a second valve body 1342, and a first connecting pipe 1343. The first valve body 1341 is communicated with the glove cavity 1331; the second valve body 1342 is communicated with the accommodation cavity 111; the first connecting pipe 1343 connects the first valve body 1341 and the second valve body 1342. The first valve body 1341 is used to communicably isolate the glove cavity 1331 and the first connecting pipe 1343, and the second valve body 1342 is used to communicably isolate the accommodation cavity 111 and the first connecting pipe 1343.

[0051] Specifically, in the preparation stage, the first valve body 1341 and the second valve body 1342 isolate the first connecting pipe 1343, the glove chamber 1331, and the accommodation chamber 111. Before the welding process, the vacuum mechanism 30 is turned on, and the first valve body 1341 and the second valve body 1342 no longer isolate the first connecting pipe 1343, the glove chamber 1331, and the accommodation chamber 111. Subsequently, the first valve body 1341 and the second valve body 1342 isolate the first connecting pipe 1343, the glove chamber 1331, and the accommodation chamber 111 and start welding to prevent dangerous gases from entering the glove chamber 1331. After the welding is completed, the vacuum mechanism 30 is turned off, and the gas balance mechanism 40 is turned on and the first valve body 1341 and the second valve body 1342 no longer isolate the first connecting pipe 1343, the glove chamber 1331, and the accommodation chamber 111.

[0052] It can be understood that the first valve body 1341 and the second valve body 1342 can be high-vacuum baffle valves.

[0053] In this technical solution, the first valve body 1341 and the second valve body 1342 control whether the first connecting pipe 1343 communicates with the glove chamber 1331 and the accommodation chamber 111, thereby reducing the risk of harmful gases entering the glove chamber 1331 and endangering the operator.

[0054] According to some embodiments of the present application, please refer to Figure 6 , the clamping mechanism 12 includes a driving member 121, a second magnetic coupling 122, and a chuck 123. The driving member 121 is disposed outside the box body 11 and has a driving end; the second magnetic coupling 122 has a second driving end connected to the driving end and a second driven end disposed in the accommodation chamber 111; the chuck 123 is used for clamping the workpiece to be welded and is connected to the second driven end.

[0055] In this technical solution, the second magnetic coupling 122 can facilitate the driving member 121 to drive the chuck 123 to rotate while ensuring the sealing performance of the housing. At the same time, since the chuck 123 is disposed in the housing and is in the same pressure state, the risk of the pressure difference caused by different pressures hindering the rotation of the chuck 123 is reduced.

[0056] According to some embodiments of the present application, please refer to Figure 6 , the clamping mechanism 12 further includes a lead screw 124, a magnetic fluid seal 125, and a tailstock 126. The lead screw 124 has a first end located outside the box body 11 and a second end located in the accommodation chamber 111; the lead screw 124 is rotatably disposed on the box body 11 through the magnetic fluid seal 125, and the lead screw 124 rotates relative to the box body 11 to move along the axis of the lead screw 124; the tailstock 126 is disposed at the second end, and the tailstock 126 is used to press the workpiece to be welded against the chuck 123.

[0057] The magnetic fluid seal 125 is a technology that uses magnetic fluid (also known as magnetorheological fluid or ferrofluid) to achieve sealing. This seal forms an effective sealing barrier by fixing the magnetic fluid in the sealing gap through the action of a magnetic field.

[0058] In this technical solution, the movement of the tailstock 126 driven by the lead screw 124 has a simple structure and is easy to implement. At the same time, due to the strong self-locking performance of the lead screw 124, the risk of the tailstock 126 moving due to the pressure difference caused by different pressures is reduced.

[0059] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0060] The above embodiments are only used to illustrate the technical solutions of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A high-vacuum high-power laser welding device, characterized in that, Comprising: A welding box having an accommodation cavity for accommodating workpieces to be welded therein; A welding mechanism for providing a laser beam into the accommodation cavity to weld the workpieces to be welded; A vacuum mechanism communicating with the accommodation cavity for driving gas out of the accommodation cavity; A gas balance mechanism for providing a protective gas into the accommodation cavity.

2. The high-vacuum high-power laser welding equipment according to claim 1, wherein The welding mechanism includes: A first housing disposed outside the welding box. The first housing has a first cavity and a second cavity therein. The first housing has a light inlet communicating with the first cavity, an optical outlet communicating with the second cavity and the accommodation cavity, and a through hole communicating the first cavity and the second cavity; A protective glass disposed at the laser channel in the first housing; A laser emitter for providing a laser beam passing through the through hole and the optical outlet in sequence into the first cavity through the light inlet.

3. The high-vacuum high-power laser welding equipment according to claim 2, wherein, The welding mechanism further includes: A light-transmitting glass disposed on the welding box and covering the light inlet; A three-axis driving platform disposed on the welding box. The laser emitter is disposed on the three-axis driving platform. The three-axis driving platform is used for driving the laser emitter to move in a first direction, a second direction and a third direction, and the first direction, the second direction and the third direction are perpendicular to each other pairwise.

4. The high-vacuum high-power laser welding equipment according to any one of claims 1 to 3, characterized in that, The welding box includes: A box body having the accommodation cavity therein. The box body has a glove hole communicating with the accommodation cavity; A clamping mechanism disposed inside the box body and for clamping the workpieces to be welded; A glove assembly inserted into the accommodation cavity through the glove hole and blocking the glove hole. A hand is inserted into the glove assembly to hold the workpieces to be welded through the glove assembly.

5. The high-vacuum high-power laser welding equipment according to claim 4, characterized in that, The glove assembly includes: A second housing disposed outside the box body and wound around the periphery of the glove hole. One end of the second housing away from the glove hole is provided with an opening; An end cap disposed on the second housing and for opening and closing the opening; A glove body inserted into the accommodation cavity through the glove hole and blocking the glove hole; A first pipeline. A glove cavity is formed by enclosing the second housing, the end cap and the inner surface of the glove body. The first pipeline communicates the glove cavity and the accommodation cavity.

6. The high-vacuum high-power laser welding device according to claim 5, characterized in that, The first pipeline includes: A first valve body communicating with the glove cavity; A second valve body communicating with the accommodation cavity; A first connecting pipe connecting the first valve body and the second valve body. The first valve body is used for communicatively blocking the glove cavity and the first connecting pipe, and the second valve body is used for communicatively blocking the accommodation cavity and the first connecting pipe.

7. The high-vacuum high-power laser welding equipment according to claim 4, characterized in that The clamping mechanism includes: A driving member disposed outside the box body and having a driving end; A second magnetic coupling having a second driving end connected to the driving end and a second driven end disposed inside the accommodation cavity; A chuck for clamping the workpieces to be welded and connected to the second driven end.

8. The high-vacuum high-power laser welding equipment according to claim 7, characterized in that, The clamping mechanism further includes: A lead screw having a first end outside the box body and a second end inside the accommodation cavity; A magnetic fluid seal. The lead screw is rotatably disposed on the box body through the magnetic fluid seal. The lead screw rotates relative to the box body to move along the axis of the lead screw; Tail top, provided at the second end, for pressing the workpiece to be welded against the chuck.

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