A lithium battery laser welding device

Abstract

The present invention discloses a lithium battery laser welding device, comprising: a frame, a galvanometer, a lifting assembly and an air outlet assembly, wherein an air guide plate is used to guide the air outlet of the air outlet assembly; a moving assembly located on one side of the lifting assembly is provided on the frame, the moving assembly is used to move the lithium battery to be welded to the welding position, and the galvanometer is used to laser weld the lithium battery on the moving assembly; one end of the mounting plate is connected to a positioning sheet metal for assisting the galvanometer in laser welding. In the present invention, the air outlet assembly plays the role of exhausting air, and guides the wind through the air guide plate, so that the smoke in the welding process is blown away, the normal operation of the galvanometer is ensured, and the generation of carbon deposits is prevented; at the same time, the air guide plate is magnetically absorbed on the galvanometer, which can protect and prevent the galvanometer from dust; in addition, the positioning sheet metal does not need to be manually held, thereby reducing the positioning error. Therefore, the present invention solves the technical problems that smoke and carbon deposits will have adverse effects during laser welding and the manual positioning error is large.

Description

Technical Field

[0001] The invention relates to the field of lithium battery laser welding, and in particular to a lithium battery laser welding device. Background Art

[0002] With the continuous development of new energy technology, the application field of lithium batteries is becoming more and more extensive. In the production process of lithium batteries, laser welding devices are needed.

[0003] In the prior art, most laser welding devices for lithium batteries use galvanometer welding, and use a manual alignment sheet metal for auxiliary welding. The manual auxiliary welding efficiency is low, and the alignment error is large. In addition, lithium batteries are prone to smoke and carbon deposition during laser welding, which affects the normal use of the galvanometer. Summary of the invention

[0004] The purpose of the present invention is to provide a lithium battery laser welding device, which solves the technical problems of smoke and carbon deposits having adverse effects and large manual alignment errors in the laser welding process of the prior art.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A lithium battery laser welding device, comprising: a frame, a galvanometer, a lifting assembly and an air outlet assembly, wherein the frame is arranged in a frame structure, the galvanometer and the lifting assembly are connected through a mounting frame, and the lifting assembly is mounted on the frame;

[0007] The mounting frame is connected to a mounting plate arranged parallel to the galvanometer, the mounting plate is hinged with an air guide plate, the air guide plate is magnetically connected to the galvanometer, and the air guide plate is used to guide the air outlet of the air outlet assembly; an adjustment assembly is also installed on the mounting plate, and the adjustment assembly is used to support the air guide plate and adjust the angle between the air guide plate and the mounting plate;

[0008] The frame is provided with a moving component located on one side of the lifting component, the moving component is used to move the lithium battery to be welded to the welding position, and the galvanometer is used to perform laser welding on the lithium battery on the moving component; one end of the mounting plate is connected to a positioning sheet metal for assisting the galvanometer in laser welding.

[0009] Optionally, the air outlet assembly includes an air outlet pipe installed on the mounting plate, one end of the air outlet pipe is connected to the wind source, and the other end of the air outlet pipe is installed with an air outlet nozzle; a positioning notch for positioning the air outlet nozzle is installed on the air guide plate.

[0010] Optionally, a plurality of parallel air outlet baffles are provided at the air outlet of the air outlet nozzle.

[0011] Optionally, at least one first mounting groove is provided on the air guide plate, and a first magnetic block is placed in the first mounting groove;

[0012] A mounting platform is connected to one side of the galvanometer, and at least one second mounting groove corresponding to the first mounting groove is provided on the mounting platform, and a second magnetic block magnetically connected to the first magnetic block is placed in the second mounting groove.

[0013] Optionally, the adjustment assembly includes an adjustment plate and a first locking member, one end of the adjustment plate is rotatably connected to the mounting plate, and the middle portion of the adjustment plate is slidably connected to the mounting plate;

[0014] Wherein, the first locking member is threadedly connected to the adjustment plate, one end of the first locking member passes through the adjustment plate and abuts against the mounting plate; a support surface arranged in an inclined plane is provided on one side of the adjustment plate, and the support surface is used to support the air guide plate.

[0015] Optionally, a rotating shaft is provided on the mounting plate, and the alignment sheet metal is sleeved on the rotating shaft;

[0016] The rotating shaft is sleeved with a rotating wheel fixedly connected to the alignment sheet metal, the rotating wheel is provided with a limiting groove, and the mounting plate is movably connected with a limiting piece plugged and matched with the limiting groove.

[0017] Optionally, the moving component includes a moving base frame fixedly mounted on the frame, a moving plate being slidably connected to the moving base frame, a moving motor for driving the moving plate to move linearly being mounted at one end of the moving base frame; a positioning block for positioning the lithium battery is provided on the moving plate.

[0018] Optionally, the movable plate is provided with a plurality of movable grooves, a movable block is slidably connected in the movable groove, a movable rod passing through the positioning block is connected to the movable block, and a locking wheel for locking the positioning block is threadedly connected to the movable rod.

[0019] Optionally, a first positioning groove and a second positioning groove are provided on the positioning block at intervals, the first positioning groove is a right-angle groove, and the second positioning groove is an arc groove.

[0020] Optionally, the lifting assembly includes a lifting frame fixedly connected to the frame, the lifting frame is arranged in a frame structure, a lifting plate is slidably connected inside the lifting frame, and the mounting frame is connected to the lifting plate; a lifting screw rod for driving the lifting plate to perform lifting motion is rotatably connected inside the lifting frame;

[0021] The lifting frame is also provided with a second locking member for locking the lifting screw rod.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides a lithium battery laser welding device, which moves the lithium battery to be welded to the welding position through a mobile component, assists in positioning the sheet metal, and the galvanometer performs laser welding on the lithium battery on the mobile component; since the air outlet component plays the role of exhausting air and guides the wind through the air guide plate, the smoke in the welding process is blown away to ensure the normal operation of the galvanometer and prevent the generation of carbon deposits; at the same time, the air guide plate is magnetically absorbed on the galvanometer, which can protect the galvanometer and prevent dust; in addition, the sheet metal does not need to be manually held, which reduces the alignment error. Therefore, the lithium battery laser welding device provided by the present invention solves the technical problems of the adverse effects of smoke and carbon deposits in the laser welding process of the prior art and the large manual alignment error. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a lithium battery laser welding device disclosed in an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of a moving component in a lithium battery laser welding device disclosed in an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of a partial explosion structure of a moving component in a lithium battery laser welding device disclosed in an embodiment of the present invention;

[0029] Figure 4 A schematic diagram of the structure of a movable plate in a lithium battery laser welding device disclosed in an embodiment of the present invention;

[0030] Figure 5A schematic diagram of the three-dimensional structure of a lifting assembly in a lithium battery laser welding device disclosed in an embodiment of the present invention;

[0031] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at point A;

[0032] Figure 7 This is one of the partial structural schematic diagrams of a lithium battery laser welding device disclosed in an embodiment of the present invention;

[0033] Figure 8 for Figure 7 A schematic diagram of the enlarged structure at B;

[0034] Fig. 9 for Figure 7 A schematic diagram of the enlarged structure at C;

[0035] Fig.10 It is a schematic diagram of the exploded structure of a limiter and a rotating wheel in a lithium battery laser welding device disclosed in an embodiment of the present invention;

[0036] Fig.11 A schematic diagram of a partial explosion structure of a lithium battery laser welding device disclosed in an embodiment of the present invention;

[0037] Fig.12 A schematic diagram of the three-dimensional structure of an air outlet nozzle in a lithium battery laser welding device disclosed in an embodiment of the present invention;

[0038] Fig.13 A second schematic diagram of the partial structure of a lithium battery laser welding device disclosed in an embodiment of the present invention.

[0039] Illustration Description:

[0040] 10. Frame; 11. Pulley; 20. Galvanometer;

[0041] 30. Lifting assembly; 31. Lifting frame; 32. Lifting plate; 33. Lifting screw; 34. Second locking member; 341. Locking platform; 342. First locking block; 343. Second locking block; 344. Second locking rod; 345. Second locking handle; 35. Rotating disk; 351. Rotating handle;

[0042] 40, air outlet assembly; 41, air outlet pipe; 42, air outlet nozzle; 421, air outlet baffle; 50, mounting frame; 60, mounting plate; 61, rotating shaft; 62, limiting rod; 63, slide groove; 64, fourth positioning groove; 70, air guide plate; 71, positioning notch; 72, first mounting groove; 73, groove; 74, positioning protrusion;

[0043] 80, adjustment assembly; 81, adjustment plate; 811, support surface; 812, convex block; 82, first locking member; 821, first locking rod; 8211, rotation groove; 822, first locking handle;

[0044] 90, moving assembly; 91, moving chassis; 92, moving plate; 921, moving slot; 93, moving motor; 94, positioning block; 941, first positioning slot; 942, second positioning slot; 95, moving block; 96, moving rod; 961, first rod; 962, second rod; 97, locking wheel;

[0045] 100, alignment sheet metal; 101, alignment hole; 102, third positioning slot; 110, first magnetic block; 120, mounting platform; 121, second mounting slot; 122, second magnetic block; 130, rotating wheel; 131, limiting slot; 140, limiting member; 141, limiting plate; 1411, first slot; 1412, second slot; 142, movable bar. DETAILED DESCRIPTION

[0046] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation of the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0048] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0049] The embodiment of the present invention provides a lithium battery laser welding device, such as Figure 1-13 As shown, it includes: a frame 10, a galvanometer 20, a lifting assembly 30 and an air outlet assembly 40, the frame 10 is arranged in a frame structure, the galvanometer 20 and the lifting assembly 30 are connected through a mounting frame 50, and the lifting assembly 30 is installed on the frame 10;

[0050] The mounting frame 50 is connected to a mounting plate 60 arranged parallel to the galvanometer 20, and an air guide plate 70 is hingedly connected to the mounting plate 60. The air guide plate 70 is magnetically connected to the galvanometer 20, and the air guide plate 70 is used to guide the air outlet of the air outlet assembly 40; the mounting plate 60 is also equipped with an adjustment assembly 80, and the adjustment assembly 80 is used to support the air guide plate 70 and adjust the angle between the air guide plate 70 and the mounting plate 60;

[0051] The frame 10 is provided with a moving assembly 90 located on one side of the lifting assembly 30. The moving assembly 90 is used to move the lithium battery to be welded to the welding position. The galvanometer 20 is used to laser weld the lithium battery on the moving assembly 90. One end of the mounting plate 60 is connected to a positioning sheet metal 100 for assisting the galvanometer 20 in laser welding. In this embodiment, the positioning sheet metal 100 is provided with a circular positioning hole 101. Four pulleys 11 are installed at the bottom of the frame 10. The setting of the pulleys 11 facilitates the movement of the laser welding device.

[0052] It should be noted that the lithium battery laser welding device provided by the present invention moves the lithium battery to be welded to the welding position through the moving component 90, assists in positioning the sheet metal 100, and the galvanometer 20 performs laser welding on the lithium battery on the moving component 90; since the air outlet component 40 plays the role of exhausting air and guides it through the air guide plate 70, the smoke in the welding process is blown away to ensure the normal operation of the galvanometer 20 and prevent the generation of carbon deposits; at the same time, the air guide plate 70 is magnetically absorbed on the galvanometer 20 to protect the galvanometer 20 from dust; in addition, the sheet metal 100 does not need to be manually held, which reduces the alignment error. Therefore, the lithium battery laser welding device provided by the present invention solves the technical problems of the adverse effects of smoke and carbon deposits in the laser welding process of the prior art and the large manual alignment error.

[0053] It should also be noted that the air guide plate 70 can be made of optically transparent ceramic material, which has high light transmittance and strong heat resistance; the air guide plate 70 can also be made of polycarbonate material, which is relatively cheap and can take into account both the mechanical strength and light transmittance of the air guide plate 70.

[0054] like Figure 1 , Figure 7 , Figure 8 and Fig. 9 As shown, the air outlet assembly 40 includes an air outlet pipe 41 mounted on a mounting plate 60, one end of the air outlet pipe 41 is connected to the wind source, and the other end of the air outlet pipe 41 is mounted with an air outlet nozzle 42; a positioning notch 71 for positioning the air outlet nozzle 42 is mounted on the air guide plate 70. In this embodiment, the air outlet pipe 41 is a universal pipe, and the air outlet nozzle 42 can achieve air outlet in any direction by bending the air outlet pipe 41, so that the air outlet nozzle 42 can be flexibly adjusted.

[0055] like Fig.12 As shown, a plurality of parallel air outlet baffles 421 are provided at the air outlet of the air outlet nozzle 42. In the specific implementation process, the air outlet baffles 421 and the air outlet nozzle 42 are an integrally formed structure; through the provision of the air outlet baffles 421, the turbulent flow in the air outlet nozzle 42 can be changed into laminar flow, thereby improving the air outlet effect of the air outlet nozzle 42 and better blowing away the smoke.

[0056] like Figure 7 , Figure 8 and Fig.11 As shown, at least one first mounting groove 72 is provided on the air guide plate 70, and a first magnetic block 110 is placed in the first mounting groove 72; in this embodiment, the number of the first mounting groove 72 and the first magnetic block 110 is set to three; the three first mounting grooves 72 can be distributed in a straight line or in a curve;

[0057] A mounting platform 120 is connected to one side of the galvanometer 20. The mounting platform 120 is provided with at least one second mounting groove 121 corresponding to the first mounting groove 72. A second magnetic block 122 magnetically connected to the first magnetic block 110 is placed in the second mounting groove 121. In this embodiment, the number of the second mounting grooves 121 and the second magnetic blocks 122 is set to three, wherein the position of the second mounting grooves 121 is not limited. The second mounting groove 121 can be set at the end of the mounting platform 120 that contacts the air guide plate 70, or the second mounting groove 121 can be set at the end of the mounting platform 120 that is opposite to the air guide plate 70. The first magnetic block 110 can be fixed in the first mounting groove 72 by glue bonding, and the second magnetic block 122 can be fixed in the second mounting groove 121 by glue bonding.

[0058] It should be noted that, through the magnetic connection between the first magnetic block 110 and the second magnetic block 122, the air guide plate 70 can be quickly stored and opened, which is convenient for operation.

[0059] like Figure 7-10 As shown, the adjustment assembly 80 includes an adjustment plate 81 and a first locking member 82, one end of the adjustment plate 81 is rotatably connected to the mounting plate 60, and the middle part of the adjustment plate 81 is slidably connected to the mounting plate 60; in the present embodiment, a slide groove 63 is provided on the mounting plate 60, the slide groove 63 is arranged in an arc shape, an arc-shaped slider is slidably connected in the slide groove 63, and the arc-shaped slider is fixedly connected to the adjustment plate 81; wherein, one end of the slide groove 63 close to the air guide plate 70 passes through the side wall of the adjustment plate 81, and the other end of the slide groove 63 is closed; since the other end of the slide groove 63 is closed, the arc-shaped slider is prevented from sliding out of the slide groove 63.

[0060] The first locking member 82 is threadedly connected to the adjustment plate 81, and one end of the first locking member 82 passes through the adjustment plate 81 and abuts against the mounting plate 60; a support surface 811 arranged in an inclined surface is provided on one side of the adjustment plate 81, and the support surface 811 is used to support the air guide plate 70. In this embodiment, a protrusion 812 is provided on the support surface 811, and a groove 73 is provided on the air guide plate 70 to be plugged and matched with the protrusion 812. A locking groove is provided on the mounting plate 60 to be locked and matched with the first locking member 82, and the adjustment plate 81 is fixedly mounted on the mounting plate 60 through the setting of the locking groove. The length of the groove 73 is greater than the length of the protrusion 812, so that the protrusion 812 can smoothly enter and exit the groove 73.

[0061] Exemplarily, the first locking member 82 includes a first locking rod 821 and a first locking handle 822 connected to each other. The first locking rod 821 is arranged in a T-shape. The first locking rod 821 is threadedly connected to the adjustment plate 81. One end of the first locking rod 821 passes through the adjustment plate 81 and the arc-shaped slider and contacts the slide groove 63. The rotation of the first locking handle 822 facilitates the first locking rod 821 to rotate, thereby facilitating the quick unlocking or locking of the adjustment plate 81. A rotation groove 8211 is provided on the end surface of one end of the first locking rod 821. The rotation groove 8211 is arranged in a straight line or a cross shape. Through the arrangement of the rotation groove 8211, it is convenient for the user to use an external screwdriver to rotate the first locking rod 821, which is convenient for operation.

[0062] It should be noted that when the air guide plate 70 is needed, the adjustment plate 81 is unlocked by the first locking member 82, and the adjustment plate 81 is pushed to slide, so that the adjustment plate 81 moves in the direction close to the air guide plate 70, and the first locking member 82 locks the adjustment plate 81, locking the adjustment plate 81 in a suitable installation position; then the air guide plate 70 is flipped open, and the protrusion 812 is inserted into the groove 73, and then the air guide plate 70 is supported by the support surface 811; at this time, the air guide plate 70 is set in an inclined state, and then the air outlet nozzle 42 is positioned and placed on the positioning notch 71. The air outlet nozzle 42 discharges a large amount of wind, and the smoke in the welding process can be blown away through the guidance of the air guide plate 70.

[0063] like Fig. 9 and Fig.10 As shown, a rotating shaft 61 is provided on the mounting plate 60, and the alignment sheet metal 100 is sleeved on the rotating shaft 61; in this embodiment, the alignment sheet metal 100 and the mounting plate 60 are detachably connected, and different types of alignment sheet metals 100 can be replaced to adapt to different types of lithium battery welding, thereby improving the adaptability of the welding device;

[0064] The rotating shaft 61 is sleeved with a rotating wheel 130 fixedly connected to the alignment sheet metal 100, and a limiting groove 131 is provided on the rotating wheel 130. The mounting plate 60 is movably connected with a limiting member 140 plugged into and matched with the limiting groove 131. It should be noted that a plurality of limiting grooves 131 are distributed at equal intervals along the circumference of the rotating wheel 130, and the alignment sheet metal 100 can be installed at different positions of the mounting plate 60 by plugging the limiting members 140 into different limiting grooves 131, which is also convenient for quickly storing the alignment sheet metal 100.

[0065] Exemplarily, the limiting member 140 includes a limiting plate 141, a movable groove is formed in the limiting plate 141, a limiting rod 62 is provided on the mounting plate 60, the limiting rod 62 passes through the movable groove, and the movable groove includes a first groove 1411 and a second groove 1412 that are interconnected, the first groove 1411 is arranged in an arc shape, and the second groove 1412 is a rectangular groove; a movable bar 142 is arranged at one end of the limiting plate 141, and an end surface of the limiting plate 141 located in the limiting groove 131 is an arc surface, which can facilitate the limiting plate 141 to be smoothly inserted into the limiting groove 131; the movable bar 142 and the limiting plate 141 are an integrally formed structure, and the setting of the movable bar 142 facilitates the operator to control the movement of the limiting plate 141.

[0066] like Figure 1-4 As shown, the moving assembly 90 includes a moving base frame 91 fixedly mounted on the frame 10, a moving plate 92 is slidably connected to the moving base frame 91, and a moving motor 93 for driving the moving plate 92 to move linearly is installed at one end of the moving base frame 91; a positioning block 94 for positioning the lithium battery is provided on the moving plate 92. It should be noted that the positioning block 94 plays a positioning role, and can position and place the lithium battery on the moving plate 92. Through the driving action of the moving motor 93, the moving plate 92 is driven to move linearly along the axial direction of the moving base frame 91, and the lithium battery is moved to the bottom of the galvanometer 20. Through the auxiliary welding alignment of the alignment sheet metal 100, the galvanometer 20 performs laser welding on the lithium battery.

[0067] like Figure 1-4As shown, a plurality of moving grooves 921 are provided on the moving plate 92, and a moving block 95 is slidably connected in the moving groove 921, and a moving rod 96 passing through the positioning block 94 is connected to the moving block 95, and a locking wheel 97 for locking the positioning block 94 is threadedly connected to the moving rod 96. It should be noted that the shapes of the moving groove 921 and the moving block 95 are not limited. By moving the positioning block 94, the moving rod 96 drives the moving block 95 to move in the moving groove 921, and the locking action of the locking wheel 97 locks the positioning block 94 on the moving plate 92, so that the positioning block 94 is convenient for welding the lithium battery, and the moving block 95 can also be placed in different moving grooves 921, so that the position of the positioning block 94 is flexible and adjustable, and its adaptability is increased; at the same time, the number of the positioning block 94 can be set to multiple, so that the positioning block 94 can position the lithium battery from multiple directions.

[0068] Exemplarily, the movable groove 921 and the movable block 95 are both arranged in a T shape, and the movable rod 96 includes a first rod 961 and a second rod 962 that are connected to each other. The outer wall of the first rod 961 is a smooth surface, and the positioning block 94 is sleeved on the first rod 961 to facilitate the rotational movement of the positioning block 94; the outer wall of the second rod 962 is provided with an external thread, and the locking wheel 97 is provided with an internal thread that cooperates with the external thread. The locking wheel 97 is threadedly connected to the second rod 962, so that the positioning block 94 can be locked.

[0069] like Figure 3 As shown, the first positioning groove 941 and the second positioning groove 942 are arranged on the positioning block 94 at intervals, the first positioning groove 941 is a right-angle groove, and the second positioning groove 942 is an arc groove. It should be noted that since the first positioning groove 941 is a right-angle groove and the second positioning groove 942 is an arc groove, they can be in contact with the plane outer wall and the arc outer wall of the lithium battery, so that the positioning block 94 can better position the lithium battery and improve the positioning adaptability of the positioning block 94.

[0070] like Figure 1-6 As shown, the lifting assembly 30 includes a lifting frame 31 fixedly connected to the frame 10, the lifting frame 31 is arranged in a frame structure, a lifting plate 32 is slidably connected in the lifting frame 31, and the mounting frame 50 is connected to the lifting plate 32; a lifting screw 33 for driving the lifting plate 32 to perform lifting movement is rotatably connected in the lifting frame 31; in this embodiment, one end of the lifting screw 33 is fixedly connected to a rotating disk 35, and a rotating handle 351 is installed on the rotating disk 35; the operator drives the rotating disk 35 to rotate by gripping the rotating handle 351, so that the lifting screw 33 drives the lifting plate 32 to move, and then drives the mounting plate 60, the galvanometer 20, and the air outlet assembly 40 to move, so as to adjust the height of the galvanometer 20;

[0071] The lifting frame 31 is also provided with a second locking member 34 for locking the lifting screw rod 33. It should be noted that the second locking member 34 has a locking function. When the height of the galvanometer 20 is adjusted to a preset height, the second locking member 34 locks the lifting screw rod 33 to securely install the galvanometer 20.

[0072] Exemplarily, the second locking member 34 includes a locking platform 341 fixedly mounted on the lifting frame 31, a first locking block 342 and a second locking block 343 are arranged on the locking platform 341, the lifting screw 33 passes through the locking platform 341, the first locking block 342 and the second locking block 343 are threadedly connected to the second locking rod 344, the locking platform 341, the first locking block 342 and the second locking block 343 are an integrated structure, and a second locking handle 345 is fixedly connected to the second locking rod 344. By rotating and adjusting the second locking handle 345, the first locking block 342 and the second locking block 343 are driven to move closer to or farther from each other, thereby correspondingly realizing the locking or unlocking of the lifting screw 33.

[0073] Working principle: The present invention provides a lithium battery laser welding device, which moves the lithium battery to be welded to the welding position through the mobile component 90, assists in positioning the sheet metal 100, and the galvanometer 20 performs laser welding on the lithium battery on the mobile component 90; by inserting the limiting member 140 into different limiting grooves 131, the sheet metal 100 can be installed at different positions of the mounting plate 60, which is also convenient for quick storage of the sheet metal 100.

[0074] By moving the positioning block 94, the moving rod 96 drives the moving block 95 to move in the moving groove 921. Through the locking action of the locking wheel 97, the positioning block 94 is locked on the moving plate 92, so that the positioning block 94 is convenient for welding the lithium battery. The moving block 95 can also be placed in different moving grooves 921, so that the position of the positioning block 94 is flexibly adjustable, thereby increasing its adaptability.

[0075] Since the air outlet assembly 40 plays the role of outlet air and guides the air through the air guide plate 70, the smoke in the welding process is blown away, ensuring the normal operation of the galvanometer 20 and preventing the generation of carbon deposits; at the same time, the air guide plate 70 is magnetically absorbed on the galvanometer 20, which can protect and prevent dust from the galvanometer 20; in addition, the alignment sheet metal 100 does not need to be manually held, reducing the alignment error. Therefore, the lithium battery laser welding device provided by the present invention solves the technical problems of the adverse effects of smoke and carbon deposits in the laser welding process of the prior art and the large manual alignment error.

[0076] In another embodiment, Fig.13As shown, the difference from the above embodiment is that the present embodiment does not have an adjustment assembly 80. In the case where the alignment sheet metal 100 is not needed for auxiliary welding, the alignment sheet metal 100 is rotated to support the flipped open wind deflector 70, and the alignment sheet metal 100 is installed by limiting the position of the limiting member 140. The wind deflector 70 of the present embodiment can be supported by the alignment sheet metal 100, the structure is simpler, and the manufacturing cost is reduced.

[0077] In this embodiment, in order to enable the alignment sheet metal 100 to quickly position and support the air guide plate 70, a positioning protrusion 74 is provided on the air guide plate 70, and a third positioning groove 102 adapted to the positioning protrusion 74 is provided on the alignment sheet metal 100, and the third positioning groove 102 is arranged adjacent to the alignment hole 101; through the plug-in cooperation between the positioning protrusion 74 and the third positioning groove 102, the air guide plate 70 is firmly positioned on the alignment sheet metal 100, and the air outlet nozzle 42 is placed on the positioning notch 71 of the air guide plate 70.

[0078] It should be noted that the number of positioning protrusions 74 can be set to multiple, and the multiple positioning protrusions 74 are distributed in a straight line. Through the limiting cooperation of the positioning sheet metal 100 and the limiting member 140, the rotation position of the positioning sheet metal 100 can be adjusted, and then the placement position of the wind guide plate 70 can be supported and adjusted, so that the wind guide plate 70 can better guide the wind.

[0079] Among them, the mounting plate 60 is provided with a fourth positioning groove 64 adapted to the positioning protrusion 74. When the air guide plate 70 is not needed, since one end of the air guide plate 70 is rotatably connected to the mounting plate 60, the other end of the air guide plate 70 is moved in a direction close to the mounting plate 60, and the air outlet nozzle 42 is moved to one side of the air guide plate 70, so that the air outlet nozzle 42 and the positioning notch 71 are located on the same side of the air guide plate 70; the air guide plate 70 can be stored on the mounting plate 60 by plugging and matching the positioning protrusion 74 with the fourth positioning groove 64; at this time, by rotating the alignment sheet metal 100, the alignment sheet metal 100 is moved to a suitable position, the air outlet nozzle 42 can be overlapped on the alignment sheet metal 100, so that the alignment sheet metal 100 supports the air outlet nozzle 42, and also plays a role of guiding air, thereby improving the air outlet effect of the air outlet nozzle 42 and better blowing away the smoke generated during welding.

[0080] Exemplarily, the positioning protrusion 74 is hemispherical, and the positioning protrusion 74 and the air guide plate 70 are an integrally formed structure; the inner wall surface of the third positioning groove 102 is arc-shaped.

[0081] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lithium battery laser welding device, characterized in that: include: A frame (10), a galvanometer (20), a lifting assembly (30), and an air outlet assembly (40), wherein the frame (10) is arranged in a frame structure, the galvanometer (20) and the lifting assembly (30) are connected via a mounting frame (50), and the lifting assembly (30) is mounted on the frame (10); The mounting frame (50) is connected to a mounting plate (60) arranged parallel to the galvanometer (20); an air guide plate (70) is hingedly connected to the mounting plate (60); the air guide plate (70) is magnetically connected to the galvanometer (20); the air guide plate (70) is used to guide the air outlet of the air outlet assembly (40); an adjustment assembly (80) is also installed on the mounting plate (60); the adjustment assembly (80) is used to support the air guide plate (70) and adjust the angle between the air guide plate (70) and the mounting plate (60); The frame (10) is provided with a moving assembly (90) located on one side of the lifting assembly (30); the moving assembly (90) is used to move the lithium battery to be welded to the welding position; the galvanometer (20) is used to perform laser welding on the lithium battery on the moving assembly (90); one end of the mounting plate (60) is connected to a positioning sheet metal (100) for assisting the galvanometer (20) in performing laser welding; The moving assembly (90) comprises a moving base frame (91) fixedly mounted on the frame (10); a moving plate (92) is slidably connected to the moving base frame (91); a moving motor (93) for driving the moving plate (92) to move linearly is mounted on one end of the moving base frame (91); and a positioning block (94) for positioning the lithium battery is provided on the moving plate (92); The movable plate (92) is provided with a plurality of movable grooves (921), a movable block (95) is slidably connected in the movable groove (921), the movable block (95) is connected with a movable rod (96) passing through the positioning block (94), and the movable rod (96) is threadedly connected with a locking wheel (97) for locking the positioning block (94); The positioning block (94) is provided with a first positioning groove (941) and a second positioning groove (942) at intervals, the first positioning groove (941) being a right-angle groove, and the second positioning groove (942) being an arc-shaped groove.

2. The lithium battery laser welding device according to claim 1, characterized in that: The air outlet assembly (40) comprises an air outlet pipe (41) mounted on the mounting plate (60); one end of the air outlet pipe (41) is connected to an air source, and the other end of the air outlet pipe (41) is mounted with an air outlet nozzle (42); and a positioning notch (71) for positioning the air outlet nozzle (42) is mounted on the air guide plate (70).

3. The lithium battery laser welding device according to claim 2, characterized in that: A plurality of parallel air outlet baffles (421) are provided at the air outlet of the air outlet nozzle (42).

4. The lithium battery laser welding device according to claim 1, characterized in that: The air guide plate (70) is provided with at least one first installation groove (72), and a first magnetic block (110) is placed in the first installation groove (72); A mounting platform (120) is connected to one side of the galvanometer (20), and at least one second mounting groove (121) corresponding to the first mounting groove (72) is provided on the mounting platform (120), and a second magnetic block (122) magnetically connected to the first magnetic block (110) is placed in the second mounting groove (121).

5. The lithium battery laser welding device according to claim 1 or 4, characterized in that: The adjustment assembly (80) comprises an adjustment plate (81) and a first locking member (82), one end of the adjustment plate (81) being rotatably connected to the mounting plate (60), and a middle portion of the adjustment plate (81) being slidably connected to the mounting plate (60); The first locking member (82) is threadedly connected to the adjustment plate (81), and one end of the first locking member (82) passes through the adjustment plate (81) and abuts against the mounting plate (60); a support surface (811) arranged in an inclined manner is provided on one side of the adjustment plate (81), and the support surface (811) is used to support the air guide plate (70).

6. The lithium battery laser welding device according to any one of claims 1 to 4, characterized in that: The mounting plate (60) is provided with a rotating shaft (61), and the alignment sheet metal (100) is sleeved on the rotating shaft (61); The rotating shaft (61) is sleeved with a rotating wheel (130) fixedly connected to the alignment sheet metal (100), a limiting groove (131) is provided on the rotating wheel (130), and a limiting member (140) is movably connected to the mounting plate (60) and plugged into and matched with the limiting groove (131).

7. The lithium battery laser welding device according to any one of claims 1 to 4, characterized in that: The lifting assembly (30) comprises a lifting frame (31) fixedly connected to the frame (10); the lifting frame (31) is arranged in a frame structure; a lifting plate (32) is slidably connected inside the lifting frame (31); the mounting frame (50) is connected to the lifting plate (32); a lifting screw rod (33) is rotatably connected inside the lifting frame (31) for driving the lifting plate (32) to perform lifting motion; A second locking member (34) for locking the lifting screw rod (33) is also mounted on the lifting frame (31).

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