Vacuum laser welding device

Abstract

The utility model discloses a vacuum laser welding device. The vacuum laser welding device comprises a laser welding assembly and a vacuum assembly. The vacuum assembly and the laser welding assembly are arranged in a spaced mode in the first direction, the vacuum assembly is provided with a vacuum cavity, the vacuum cavity is used for fixedly placing a to-be-welded part, the vacuum assembly comprises a protection lens, and the laser welding assembly and the vacuum cavity are located on the two sides of the protection lens in the first direction correspondingly; and laser emitted by the laser welding assembly penetrates through the protection lens and falls onto the to-be-welded part. The vacuum laser welding device can restrain generation of plume in the welding process.

Description

Technical Field

[0001] The present application relates to the technical field of laser welding, and in particular to a vacuum laser welding device. Background Art

[0002] Laser welding is a high-energy beam welding method that is gradually maturing. It has high energy density, concentrated heating, fast welding speed, good weld formation, small weld deformation, and easy automation. Its application in the field of titanium alloy welding is also increasing. Traditional laser welding devices usually produce plume during the welding process. The plume refracts, scatters, and absorbs the incident laser, affecting the stability of the welding process and causing problems such as molten pool fluctuations and spatter. Utility Model Content

[0003] In view of this, the purpose of the present invention is to overcome the deficiencies in the prior art and to provide a vacuum laser welding device that can suppress the generation of plume during the welding process.

[0004] To achieve the above objectives, the technical solutions adopted in this application are as follows:

[0005] According to the vacuum laser welding device of the embodiment of the utility model, it includes: a laser welding component; a vacuum component, the vacuum component and the laser welding component are spaced apart in a first direction, the vacuum component is provided with a vacuum cavity, the vacuum cavity is used for fixing and placing the workpiece to be welded, the vacuum component includes a protective lens, the laser welding component and the vacuum cavity are respectively located on both sides of the protective lens along the first direction, and the laser emitted by the laser welding component passes through the protective lens and falls onto the workpiece to be welded.

[0006] According to the vacuum laser welding device of the embodiment of the utility model, the vacuum assembly includes a vacuum adsorption fixing part and a vacuum part, the workpiece to be welded is fixed on the vacuum adsorption fixing part, the vacuum part is provided with the vacuum cavity, and the vacuum adsorption fixing part moves along the first direction and the second direction relative to the vacuum part, so that the vacuum adsorption fixing part and the vacuum part are in a first relative position and a second relative position;

[0007] Among them, when the vacuum adsorption fixing part and the vacuum part are in the first relative position, the part to be welded is hidden in the vacuum chamber, and when the vacuum adsorption fixing part and the vacuum part are in the second relative position, the part to be welded is exposed outside the vacuum chamber, and the second direction is perpendicular to the first direction.

[0008] According to the vacuum laser welding device of the embodiment of the utility model, the vacuum part has a first side wall, the first side wall is arranged close to the vacuum adsorption fixing part along the first direction, the vacuum adsorption fixing part has a fixed plane, the fixed plane is arranged close to the vacuum part along the first direction, the part to be welded is adsorbed on the fixed plane, and when the vacuum adsorption fixing part and the vacuum part are in the first relative position, the first side wall is against the fixed plane.

[0009] According to the vacuum laser welding device of the embodiment of the utility model, the vacuum part is provided with an avoidance opening, the avoidance opening is opened on the first side wall, and the avoidance opening is connected to the vacuum chamber, when the vacuum adsorption fixing part and the vacuum part are in the first relative position, the part to be welded is exposed in the vacuum chamber through the avoidance opening.

[0010] According to the vacuum laser welding device of the embodiment of the utility model, the vacuum adsorption fixing part also has a plurality of fixing parts, the plurality of fixing parts are arranged at intervals, each of the fixing parts is detachably connected to the fixing plane, and in the first direction, one side of the part to be welded is against the fixing plane, and the other side of the part to be welded is against the plurality of fixing parts.

[0011] According to the vacuum laser welding device of an embodiment of the utility model, the vacuum part has a second side wall, the second side wall is arranged along the first direction away from the vacuum adsorption fixing part, the second side wall is provided with an installation through hole, the installation through hole is connected to the vacuum chamber, and the protective lens is installed at the installation through hole.

[0012] According to the vacuum laser welding device of the embodiment of the utility model, the protective lens is connected to the hole wall of the mounting through hole by snap connection, magnetic adsorption or pin connection.

[0013] According to the vacuum laser welding device of the embodiment of the utility model, the vacuum laser welding device further comprises a driving component, the driving component is drivingly connected to the vacuum component, and the driving component drives the vacuum component to move along the first direction and the second direction.

[0014] According to the vacuum laser welding device of the embodiment of the utility model, the driving assembly includes a first driving member, the first driving member is drivingly connected to the vacuum member, and the first driving member drives the vacuum member to move along the first direction.

[0015] According to the vacuum laser welding device of the embodiment of the utility model, the driving assembly includes a second driving member, the second driving member is drivingly connected to the vacuum member, and the second driving member drives the vacuum member to move along the second direction.

[0016] The vacuum laser welding device of the utility model has the following advantages:

[0017] In the above-mentioned vacuum laser welding device, since the laser emitted by the laser welding assembly passes through the protective lens and falls onto the workpiece to be welded, the workpiece to be welded can be welded through the laser welding assembly, and the protective lens can not only prevent flying dust from contaminating the laser welding assembly, but also provide an incident light path for the laser of the laser welding assembly. When the laser welding assembly welds the workpiece to be welded, since the workpiece to be welded is fixedly placed in the vacuum chamber, the vacuum environment can suppress the plume generated in the laser welding process, thereby reducing the interference of the plume on the laser energy transmission, greatly improving the laser energy utilization rate, and thus increasing the penetration depth of the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The structure diagram of the vacuum welding device of the present application is shown in FIG. Figure 1 ;

[0020] Figure 2 The structure diagram of the vacuum welding device of the present application is shown in FIG. Figure 2 ;

[0021] Figure 3 The schematic diagram of the structure of the vacuum component of the present application is shown;

[0022] Figure 4 A schematic structural diagram of the vacuum adsorption fixing member of the present application is shown.

[0023] Description of main component symbols:

[0024] 100-vacuum assembly; 110-vacuum chamber; 120-protective lens; 130-vacuum adsorption fixing member; 131-fixing plane; 132-fixing part; 1321-second fixing hole; 133-first fixing hole; 140-vacuum member; 141-first side wall; 142-avoidance; 143-second side wall; 144-transparent member;

[0025] 200 - driving assembly; 210 - first driving member; 220 - second driving member; 230 - first manual valve; 240 - second manual valve. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] Reference Figure 1 as well as Figure 2As shown, the vacuum laser welding device involved in the embodiment of the present application includes: a laser welding component (not shown) and a vacuum component 100.

[0032] Specifically, the vacuum component 100 and the laser welding component are spaced apart in a first direction, the vacuum component 100 is provided with a vacuum chamber 110, the vacuum chamber 110 is used for fixing and placing the workpiece to be welded, the vacuum component 100 includes a protective lens 120, the laser welding component and the vacuum chamber 110 are respectively located on both sides of the protective lens 120 along the first direction, and the laser emitted by the laser welding component passes through the protective lens 120 and falls onto the workpiece to be welded.

[0033] It should be noted that the first direction is Figure 1 The direction that x points to.

[0034] It should be noted that when a high-power, high-energy-density laser is irradiated on the surface of a material, the material is heated and then rapidly heated to melt and then vaporized, thereby forming a large amount of metal vapor. The metal vapor is heated and ionized under the action of the laser to form a dense plume. For the laser welding process, the presence of the plume leads to the loss and dissipation of the laser energy itself, which includes the extinction effect of the plume itself on the laser energy, and also includes the diffusion effect of the plume on the laser beam transmission path. When the plume is suppressed, the interference of the plume on the laser energy transmission can be reduced, greatly improving the laser energy utilization rate. The electron density of the plasma in the laser welding process is determined by the ambient pressure. High vacuum will greatly reduce the electron density of the plasma, thereby reducing the formation of the plume, and then significantly improving the melting depth and molten pool stability of vacuum laser welding.

[0035] Furthermore, in the atmospheric environment, the increase in laser power leads to an increase in energy density and heat input, and the weld penetration depth increases significantly. At the same time, due to the scattering effect of the plume on the laser, the weld width also increases significantly. As the welding power increases, the molten pool temperature increases, the material vaporization increases, the plume size increases, and its absorption of laser energy increases, which slows down the increase in energy reaching the material surface and the increase in penetration depth.

[0036] In the above-mentioned vacuum laser welding device, since the laser emitted by the laser welding assembly passes through the protective lens 120 and falls onto the workpiece to be welded, the workpiece to be welded can be welded through the laser welding assembly. At the same time, the protective lens 120 can not only prevent flying dust from contaminating the laser welding assembly, but also provide an incident light path for the laser of the laser welding assembly. When the laser welding assembly welds the workpiece to be welded, since the workpiece to be welded is fixedly placed in the vacuum chamber 110, the vacuum environment can suppress the plume generated in the laser welding process, thereby reducing the interference of the plume on the laser energy transmission, greatly improving the laser energy utilization rate, and thus, the weld depth can be increased.

[0037] Specifically, in the above-mentioned embodiment, the protective lens 120 is coated with a coating so as to be compatible with lasers of various wavelengths, thereby expanding the range of laser power of the laser passing through the protective lens.

[0038] More specifically, in the above-mentioned embodiments, the shape of the protective lens 120 includes but is not limited to circular, square, diamond, rectangular, etc.

[0039] Continue to refer to Figure 1 , Figure 2 As shown, the vacuum assembly 100 includes a vacuum adsorption fixing member 130 and a vacuum member 140. The welded member is fixed on the vacuum adsorption fixing member 130. The vacuum member 140 is provided with a vacuum cavity 110. The vacuum adsorption fixing member 130 moves relative to the vacuum member 140 along a first direction and a second direction, so that the vacuum adsorption fixing member 130 and the vacuum member 140 are in a first relative position and a second relative position.

[0040] When the vacuum adsorption fixing member 130 and the vacuum member 140 are in the first relative position, Figure 1 As shown, the welded parts are hidden in the vacuum chamber 110. Figure 2 As shown, when the vacuum adsorption fixing member 130 and the vacuum member 140 are in the second relative position, the member to be welded is exposed outside the vacuum chamber 110, and the second direction is perpendicular to the first direction.

[0041] It should be noted that the second direction is Figure 1 The direction that y points to.

[0042] Specifically, in the above-mentioned embodiment, when the vacuum adsorption fixture 130 and the vacuum component 140 are in a first relative position, the vacuum adsorption fixture 130 and the vacuum component 140 are sealed and connected, so that the vacuum cavity 110 is sealed by the vacuum adsorption fixture 130, so that the parts to be welded are vacuum-sealed in the vacuum cavity 110; when the vacuum adsorption fixture 130 and the vacuum component 140 are in a second relative position, the vacuum adsorption fixture 130 is exposed outside the vacuum component 140, so that the parts to be welded are exposed outside the vacuum cavity 110.

[0043] It can be understood that when the vacuum adsorption fixture 130 and the vacuum component 140 are in the second relative position, the parts to be welded are exposed outside the vacuum chamber 110, so as to facilitate fixing the parts to be welded on the vacuum adsorption fixture 130. When the vacuum adsorption fixture 130 and the vacuum component 140 are in the first relative position, the parts to be welded are hidden in the vacuum chamber 110, so that the parts to be welded can be laser welded in a vacuum environment, thereby suppressing the plume generated in the laser welding process, thereby reducing the interference of the plume on the laser energy transmission, and greatly improving the laser energy utilization rate.

[0044] Reference Figure 3 as well as Figure 4 As shown, the vacuum part 140 has a first side wall 141, and the first side wall 141 is arranged along a first direction close to the vacuum adsorption fixing part 130. The vacuum adsorption fixing part 130 has a fixing plane 131, and the fixing plane 131 is arranged along the first direction close to the vacuum part 140. The welded part is adsorbed on the fixing plane 131. When the vacuum adsorption fixing part 130 and the vacuum part 140 are in a first relative position, the first side wall 141 and the fixing plane 131 are against each other.

[0045] It can be understood that the workpiece to be welded can be fixed on the fixed plane 131 of the vacuum adsorption fixture 130 to facilitate welding of the workpiece to be welded. When the vacuum adsorption fixture 130 and the vacuum part 140 are in a first relative position, since the first side wall 141 of the vacuum part 140 is against the fixed plane 131, a closed structure of a vacuum chamber 110 can be formed between the vacuum part 140 and the vacuum adsorption fixture 130. In this way, the vacuum chamber 110 and the vacuum adsorption fixture 130 form two layers of vacuum space. The vacuum chamber 110 has a larger vacuum space, which is conducive to rapid air extraction. The vacuum adsorption fixture 130 is close to the workpiece to be welded, which is conducive to improving the vacuum degree on the surface of the workpiece to be welded, thereby further suppressing the plume generated in the laser welding process, reducing the interference of the plume on the laser energy transmission, and greatly improving the laser energy utilization rate.

[0046] Reference Figure 3 As shown, the vacuum component 140 is provided with an escape opening 142 , which is opened on the first side wall 141 and communicates with the vacuum chamber 110 . When the vacuum adsorption fixture 130 and the vacuum component 140 are in a first relative position, the component to be welded is exposed in the vacuum chamber 110 through the escape opening 142 .

[0047] It can be understood that when the vacuum adsorption fixing member 130 and the vacuum member 140 are in the first relative position, since the parts to be welded are exposed in the vacuum chamber 110 through the avoidance opening 142, when the vacuum adsorption fixing member 130 and the vacuum member 140 are sealed and connected, the first side wall 141 can be prevented from interfering with the parts to be welded fixed on the fixed plane 131, and at the same time, the laser emitted by the laser welding assembly can fall on the parts to be welded, thereby realizing the welding of the parts to be welded.

[0048] Reference Figure 4 As shown, the vacuum adsorption fixing member 130 also has a plurality of fixing parts 132, and the plurality of fixing parts 132 are arranged at intervals, and each fixing part 132 is detachably connected to the fixing plane 131. In a first direction, one side of the part to be welded abuts against the fixing plane 131, and the other side of the part to be welded abuts against the plurality of fixing parts 132.

[0049] Specifically, in the above-mentioned embodiments, referring to Figure 4 As shown, a plurality of first fixing holes 133 arranged at intervals are provided on the vacuum adsorption fixing member 130, and each of the first fixing holes 133 is extended from the fixing plane 131 along the first direction toward the direction away from the true space, and a second fixing hole 1321 is provided on each fixing portion 132. When it is necessary to connect the fixing portion 132 to the fixing plane 131, it is only necessary to make the second fixing hole 1321 of the fixing portion 132 correspond to one of the first fixing holes 133, and a fastener (not shown) is simultaneously penetrated through the second fixing hole 1321 and the first fixing hole 133, so as to realize the connection between the fixing portion 132 and the fixing plane 131, and the edge of the workpiece to be welded is located between the second fixing portion 132 and the fixing plane 131. When it is necessary to fix workpieces to be welded of different sizes, it is only necessary to adjust the second fixing hole 1321 of the fixing portion 132 to correspond to different first fixing holes 133, so as to change the position of the fixing portion 132 on the fixing plane 131, so as to realize the fixation of workpieces to be welded of different sizes.

[0050] It can be understood that in the first direction, since one side of the part to be welded abuts against the fixed plane 131 and the other side of the part to be welded abuts against the multiple fixing parts 132, the part to be welded can be fixed on the fixed plane 131 by the multiple fixing parts 132 to prevent the part to be welded from moving during the welding process, thereby improving the stability of the weld.

[0051] Reference Figure 2 As shown, the vacuum part 140 has a second side wall 143, which is arranged along the first direction away from the vacuum adsorption fixing part 130. The second side wall 143 is provided with an installation hole (not shown), which is connected to the vacuum chamber 110, and the protective lens 120 is detachably installed at the installation hole.

[0052] It can be understood that since the second side wall 143 is arranged along the first direction away from the vacuum adsorption fixing part 130, the second side wall 143 is provided with a mounting through hole. Therefore, the protective lens 120 installed in the mounting through hole can be kept parallel to the fixing plane 131, so that the laser emitted by the laser welding assembly can pass through the protective lens 120 and fall on the part to be welded fixed on the fixing plane 131, thereby realizing the welding of the part to be welded. At the same time, since the protective lens 120 can be detachably installed at the mounting through hole, it is convenient to disassemble, replace or clean the protective lens.

[0053] Specifically, in the above-mentioned embodiments, the protective lens 120 is connected to the hole wall of the mounting through hole by snap connection, magnetic adsorption or pin connection, including but not limited to these.

[0054] Specifically, in the above-mentioned embodiments, the snap connection includes but is not limited to connection through a spring, a spring sheet, a snap connection groove, etc.

[0055] It can be understood that when the protective lens 120 is connected to the hole wall of the mounting through hole by snap connection, magnetic adsorption or pin connection, the protective lens 120 and the hole wall of the mounting through hole can be quickly disassembled or installed, thereby improving the disassembly or installation efficiency.

[0056] Continue to refer to Figure 2 As shown, the vacuum member 140 is further provided with an observation window (not shown), which is provided on any side wall of the vacuum member 140 and is connected to the vacuum chamber 110 , and a transparent member 144 is installed on the observation window.

[0057] Specifically, in the above-mentioned embodiment, the observation window is opened on a side wall of the vacuum member 140 for easy manual observation.

[0058] It can be understood that since the observation window is connected to the vacuum chamber 110 and a transparent member 144 is installed on the observation window, when welding the workpiece to be welded, the welding condition of the workpiece to be welded can be observed through the observation window to facilitate timely handling of any abnormal conditions that occur, and the vacuum degree in the vacuum chamber 110 can be adjusted by observing the condition of the weld in real time, so as to deepen the penetration depth of the weld of the workpiece to be welded. At the same time, the observation window can be sealed by the transparent member 144 to ensure the vacuum degree in the vacuum chamber 110.

[0059] Reference Figure 1 as well as Figure 2 As shown, the vacuum laser welding device further includes a driving assembly 200 , which is drivingly connected to the vacuum member 140 , and the driving assembly 200 drives the vacuum member 140 to move along the first direction and the second direction.

[0060] It can be understood that the driving component 200 can be used to drive the vacuum component 140 to move in a first direction so that the vacuum component 140 approaches or moves away from the vacuum adsorption fixing component 130 in the first direction. At the same time, the driving component 200 can be used to drive the vacuum component 140 to move in a second direction so that the vacuum component 140 approaches or moves away from the vacuum adsorption fixing component 130 in the second direction, thereby making the vacuum component 140 and the vacuum adsorption fixing component 130 in a first relative position or a second relative position.

[0061] Reference Figure 2 As shown, the driving assembly 200 includes a first driving member 210 , which is drivingly connected to the vacuum member 140 , and the first driving member 210 drives the vacuum member 140 to move along a first direction.

[0062] Specifically, in the above embodiment, the first driving member 210 is a first telescopic cylinder, and the driving assembly 200 also includes a first manual valve 230, which is drivingly connected to the first telescopic cylinder and is used to extend and retract the first telescopic cylinder along a first direction.

[0063] It can be understood that the vacuum component 140 can be driven to move along the first direction by the first driving component 210, so that the vacuum component 140 is close to the vacuum adsorption fixing component 130 in the first direction, so that the part to be welded is sealed in the vacuum chamber 110, or the vacuum component 140 is away from the vacuum adsorption fixing component 130 in the first direction, so as to provide a fixed space for the part to be welded, thereby avoiding the vacuum component 140 from interfering with the fixation or disassembly of the part to be welded, so as to facilitate the fixation or disassembly of the part to be welded.

[0064] Continue to refer to Figure 2 As shown, the driving assembly 200 includes a second driving member 220 , which is drivingly connected to the vacuum member 140 , and the second driving member 220 drives the vacuum member 140 to move along the second direction.

[0065] Specifically, in the above embodiment, the second driving member 220 is a second telescopic cylinder, and the driving assembly 200 also includes a second manual valve 240, which is drivingly connected to the second telescopic cylinder and is used to extend and retract the second telescopic cylinder in the second direction.

[0066] It can be understood that the vacuum part 140 can be driven to move along the second direction by the second driving member 220, so that the vacuum part 140 is close to the vacuum adsorption fixing member 130 in the second direction, thereby facilitating the first driving member 210 to drive the vacuum part 140 close to the vacuum adsorption fixing member 130 to seal the part to be welded in the vacuum chamber 110, or to make the vacuum part 140 away from the vacuum adsorption fixing member 130 in the second direction, so as to provide a fixed space for the part to be welded, thereby avoiding the vacuum part 140 from interfering with the fixation or disassembly of the part to be welded, so as to facilitate the fixation or disassembly of the part to be welded.

[0067] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0068] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A vacuum laser welding device, characterized in that: include: Laser welding of components; A vacuum component, wherein the vacuum component and the laser welding component are spaced apart in a first direction, the vacuum component is provided with a vacuum chamber, the vacuum chamber is used for fixing and placing the workpiece to be welded, the vacuum component comprises a protective lens, the laser welding component and the vacuum chamber are respectively located on both sides of the protective lens along the first direction, and the laser emitted by the laser welding component passes through the protective lens and falls onto the workpiece to be welded.

2. The vacuum laser welding device according to claim 1, characterized in that: The vacuum assembly comprises a vacuum adsorption fixture and a vacuum component, the component to be welded is fixed on the vacuum adsorption fixture, the vacuum component is provided with the vacuum cavity, and the vacuum adsorption fixture moves relative to the vacuum component along the first direction and the second direction, so that the vacuum adsorption fixture and the vacuum component are in a first relative position and a second relative position; Among them, when the vacuum adsorption fixing part and the vacuum part are in the first relative position, the part to be welded is hidden in the vacuum chamber, and when the vacuum adsorption fixing part and the vacuum part are in the second relative position, the part to be welded is exposed outside the vacuum chamber, and the second direction is perpendicular to the first direction.

3. The vacuum laser welding device according to claim 2, characterized in that: The vacuum part has a first side wall, which is arranged close to the vacuum adsorption fixing part along the first direction. The vacuum adsorption fixing part has a fixed plane, which is arranged close to the vacuum part along the first direction. The part to be welded is adsorbed on the fixed plane. When the vacuum adsorption fixing part and the vacuum part are in the first relative position, the first side wall is against the fixed plane.

4. The vacuum laser welding device according to claim 3, characterized in that: The vacuum component is provided with an escape opening, which is opened on the first side wall and is connected to the vacuum chamber. When the vacuum adsorption fixture and the vacuum component are in the first relative position, the component to be welded is exposed in the vacuum chamber through the escape opening.

5. The vacuum laser welding device according to claim 3, characterized in that: The vacuum adsorption fixing part also has multiple fixing parts, which are arranged at intervals, and each of the fixing parts is detachably connected to the fixing plane. In the first direction, one side of the part to be welded is against the fixing plane, and the other side of the part to be welded is against the multiple fixing parts.

6. The vacuum laser welding device according to any one of claims 2 to 5, characterized in that: The vacuum component has a second side wall, which is arranged along the first direction away from the vacuum adsorption fixing component. The second side wall is provided with a mounting through hole, which is connected to the vacuum chamber, and the protective lens is detachably mounted at the mounting through hole.

7. The vacuum laser welding device according to claim 6, characterized in that: The protective lens is connected to the hole wall of the mounting through hole by snap connection, magnetic adsorption or pin connection.

8. The vacuum laser welding device according to any one of claims 2 to 5, characterized in that: The vacuum laser welding device further includes a driving component, which is drivingly connected to the vacuum component, and drives the vacuum component to move along the first direction and the second direction.

9. The vacuum laser welding device according to claim 8, characterized in that: The driving assembly includes a first driving member, which is drivingly connected to the vacuum member, and the first driving member drives the vacuum member to move along the first direction.

10. The vacuum laser welding device according to claim 8, characterized in that: The driving assembly includes a second driving member, which is drivingly connected to the vacuum member, and the second driving member drives the vacuum member to move along the second direction.

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