Button cell welding equipment

Abstract

The utility model provides button cell welding equipment. The button cell welding equipment comprises a welding jig module and a laser module. The welding jig module comprises a supporting frame, a centering assembly, a rotating assembly, a jacking assembly and a pressing assembly. The centering assembly comprises a bearing table and a plurality of clamping blocks. A jacking hole is formed in the bearing table, and the multiple clamping blocks surround the periphery of the jacking hole and are arranged in a sliding mode. When the clamping blocks clamp the shell, a gap is formed between every two adjacent clamping blocks. The jacking assembly comprises a jacking rod, and the jacking rod is movably arranged in the jacking hole in a penetrating mode in the vertical direction. The downward pressing assembly comprises a pressing head, and the pressing head is movably arranged above the jacking hole in the vertical direction. The button cell shell welding method adopts the button cell welding equipment to weld the joint of the shell and the top cover. According to the button cell welding equipment, the button cell can be conveniently taken out after welding is completed, and the machining efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to button battery welding equipment. Background Art

[0002] Button batteries are widely used in all aspects of life, especially in computer motherboards, watches, calculators, Bluetooth headsets, toy walkie-talkies and other related products and fields.

[0003] Conventional welding equipment generally consists of a welding jig module and a welding head. The welding jig module includes a fixed block and a pressure head. The fixed block is provided with a positioning slot, and the pressure head is positioned above the positioning slot. During use, the battery is placed in the positioning slot, and the pressure head presses down to tighten the top cover and the housing, and then the welding head welds the two together. The welding mechanism with the above structure makes it difficult to remove the battery after welding, reducing work efficiency.

[0004] Therefore, it is necessary to provide a button battery welding device to solve the above technical problems. Utility Model Content

[0005] The utility model provides a button battery welding device, which is convenient for taking out the button battery after welding is completed, thereby effectively improving processing efficiency.

[0006] The technical solution of the utility model is:

[0007] A button battery welding device is used to weld the shell and top cover of a button battery, and the button battery welding device includes a welding fixture module and a laser module;

[0008] The welding fixture module includes:

[0009] Support frame;

[0010] The centering component is arranged on the support frame, and includes a bearing platform, a plurality of clamping blocks and a clamping block driving member; the bearing platform is arranged on the clamping block driving member, and a circular jacking hole is provided on the bearing platform, and the jacking hole vertically penetrates the bearing platform; the plurality of clamping blocks surround the jacking hole, and each clamping block is radially slidably arranged on the bearing platform along the jacking hole, and when the clamping blocks clamp the shell, there is a gap between two adjacent clamping blocks; the clamping block driving member is connected to the plurality of clamping blocks, and is used to drive the plurality of clamping blocks to move closer to or away from the jacking hole, so that the shell and the top cover are coaxially arranged with the jacking hole;

[0011] a rotating assembly, which is disposed on the support frame and connected to the centering assembly, and is used to drive the centering assembly to rotate around the central axis of the jacking hole;

[0012] A jacking assembly, comprising a jacking rod and a jacking drive device; the jacking rod is cylindrical and is vertically movable and penetrates the jacking hole, and the two are coaxially arranged; the jacking drive device is arranged on the support frame and connected to the jacking rod, and is used to drive the jacking rod to move vertically to lift the shell and the top cover, and make the connection between the two higher than the clamping block; and

[0013] A pressing assembly, comprising a pressing head and a pressing drive device; the pressing head is vertically movable above the jacking hole, and the pressing head and the jacking hole are coaxially arranged; the pressing drive device is arranged on the support frame and connected to the pressing head, and is used to drive the pressing head to move closer to or away from the jacking hole to press the shell and the top cover;

[0014] The laser module includes a welding head, which is arranged on one side of the centering component.

[0015] In the button battery welding equipment described in the present invention, the end face of the clamping block close to the lifting hole is an arc-shaped surface, and an L-shaped groove is provided on the top. When the lifting rod lifts the shell and the top cover, the upper end face of the lifting rod is flush with the bottom surface below the groove.

[0016] In the button battery welding equipment described in the present invention, the number of the clamping blocks is 3.

[0017] In the button battery welding equipment described in the present invention, the pressing assembly further includes a pressure control device, which is connected to the pressing head and is used to control the force with which the pressing head presses against the top cover.

[0018] In the button battery welding equipment described in the present invention, the centering component further includes a proportional valve, which is connected to the clamping block and is used to control the force with which the clamping block clamps the shell.

[0019] In the button battery welding equipment described in the present invention, the support frame includes a lower plate, an upper plate and a plurality of external support columns; the lower plate and the upper plate are both horizontally arranged, the lower plate is located below the upper plate, and the plurality of external support columns are connected between the lower plate and the upper plate, the jacking drive device is arranged on the lower plate, the jacking rod is vertically movable through the upper plate, the rotating assembly is arranged on the upper plate, and the jacking drive device and the rotating assembly are both located between the areas surrounded by the plurality of external support columns; the pressing assembly is arranged on the upper plate.

[0020] In the button battery welding equipment described in the present invention, the support frame also includes a middle plate and a plurality of inner support columns, the middle plate is located between the lower plate and the upper plate, the plurality of inner support columns are connected between the middle plate and the lower plate, and are located in the space surrounded by the plurality of outer support columns; the lifting assembly also includes an upper bearing and a lower bearing, the upper bearing is arranged on the bottom surface of the upper plate, and the lower bearing is arranged on the top surface of the middle plate, and the two ends of the lifting rod are respectively passed through the middle plate and the upper plate, and are connected to the upper bearing and the lower bearing.

[0021] In the button battery welding equipment described in the present invention, the jacking drive device is a double-rod cylinder, and the jacking drive device includes a top block movably arranged vertically, and the top block is located between the middle plate and the lower plate, and is located in the space surrounded by multiple inner support columns; a fixing hole is provided on the upper surface of the top block, and a positioning column is provided at the bottom end of the jacking rod, and the positioning column is arranged in the fixing hole.

[0022] In the button battery welding equipment described in the present invention, the clamping block is provided with a limiting groove and a limiting hole; the limiting groove is located at the bottom of the clamping block, and is a long strip arranged along the sliding direction of the clamping block, and its two ends pass through the clamping block; the limiting hole passes through the clamping block vertically; the clamping block driving member is provided as a clamping claw cylinder, and a plurality of sliders are provided on the supporting platform, and the sliders are connected to the clamping block in a one-to-one correspondence, and the sliders are arranged along the radial sliding of the jacking hole, and a limiting column is also provided on the top of the slider, and the limiting column is arranged in the limiting hole, and the slider is connected to the clamping block by a first screw, and the first screw and the limiting column are arranged along the sliding direction of the slider.

[0023] In the button battery welding equipment described in the present invention, the laser module also includes a Y-axis module, a Z-axis module, a connecting piece and an angle adjustment piece; the angle adjustment piece includes a first angle adjustment piece and a second angle adjustment piece connected vertically, and the connecting piece includes a first connecting piece and a second connecting piece connected vertically, and the first angle adjustment piece is provided with a plurality of first arc holes, and the plurality of first arc holes are surrounded in a ring, and the first angle adjustment piece is connected to the welding head through the first arc hole by a second screw, and the second angle adjustment piece is provided with a plurality of second arc holes, and the plurality of second arc holes are surrounded in a ring, and the second angle adjustment piece is connected to the first connecting piece through the second arc hole by a third screw, and the Z-axis module is connected to the second connecting piece, and the Z-axis module is used to drive the welding head to move vertically, and the Y-axis module is connected to the Z-axis module for driving the welding head to move longitudinally.

[0024] Compared with the prior art, the present invention has the following beneficial effects: during processing, the button battery welding equipment of the present invention first drives multiple clamps away from the jacking hole through the clamping block driving member, and drives the jacking rod through the jacking driving device to move its top surface to be flush with or lower than the top surface of the carrier platform, so that the shell and the top cover are placed on the jacking hole of the carrier platform and supported on the top surface of the carrier platform, and then the clamping block driving member drives multiple clamps close to the shell, so that the multiple clamps clamp the shell, and the shell and the top cover are coaxially arranged with the jacking hole, and then the downward driving device drives the pressure head to move in the direction close to the jacking hole to press the top cover and the shell, and then the welding head is used to spot weld a connection between the shell and the top cover located in the gap between the two clamps, the downward driving device drives the pressure head away from the shell, the rotating assembly drives the centering assembly to rotate a certain angle around the center axis of the jacking hole, and the downward driving device drives the pressure head close to the shell again to press the top cover and the shell, so as to spot weld the connection between the shell and the top cover located in the other clamping block gaps through the welding head. After the spot welding is completed, the multiple clamps are first driven away from the shell again by the clamp driving member, and then the jacking drive device drives the jacking rod to rise, so that the connection between the shell and the top cover is higher than the clamp, and then the multiple clamps are driven by the clamp driving member to approach the shell again to clamp the shell, and make the shell and the top cover coaxially arranged with the jacking hole. The jacking drive device drives the jacking rod to descend and separate from the shell, and drives the centering assembly to rotate around the central axis of the jacking hole through the rotating assembly to perform circumferential welding on the connection between the top cover and the shell, and finally drives the multiple clamps away from the shell by the clamp driving member, so that the button battery can be easily removed. The button battery welding equipment and button battery shell welding method of the present invention can first perform spot welding and then perform circumferential welding on the connection between the shell and the top cover through the cooperation of the centering component, the rotating component, the lifting component and the pressing component. During spot welding, the pressure head is pressed on the top cover, and the shell is supported by a bearing platform under the shell. There are clamps on the circumferential surface to limit it, so that the shell will not shift, and the clamps make the shell and the lifting hole coaxially arranged. Because the pressure head is also coaxially arranged with the lifting hole, the force of the pressure head pressing on the top cover is uniform, so that the gap between the shell and the top cover remains uniform, which is convenient for spot welding, and the shell and the top cover are fixed, and finally the weld bead at the connection between the two during circumferential welding is uniform, and the size of the button battery is more standard. After the circumferential welding is completed, the clamps are away from the shell, which is convenient for removing the button battery, effectively improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0026] Figure 1 This is a schematic diagram of the overall structure of the button battery welding equipment provided in the preferred embodiment of the present utility model.

[0027] Figure 2 This is a structural diagram of a welding jig module for button battery welding equipment provided in a preferred embodiment of the present invention.

[0028] Figure 3 This is a schematic structural diagram of the centering assembly of the button battery welding equipment provided in the preferred embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram of the exploded structure of the centering assembly of the button battery welding equipment provided in the preferred embodiment of the present invention.

[0030] Figure 5 This is a schematic structural diagram of the clamping block of the button battery welding equipment provided in the preferred embodiment of the present utility model.

[0031] Figure 6 This is a schematic structural diagram of the rotating assembly of the button battery welding equipment provided in the preferred embodiment of the present utility model.

[0032] Figure 7 This is a schematic diagram of the exploded structure of the lifting assembly of the button battery welding equipment provided in the preferred embodiment of the present utility model.

[0033] Figure 8 This is a structural diagram of the laser module of the button battery welding equipment provided in the preferred embodiment of the present utility model.

[0034] Figure 9 This is a schematic diagram of the exploded structure of the connecting parts and angle adjustment parts of the button battery welding equipment provided in the preferred embodiment of the present invention.

[0035] in,

[0036] 1. Welding fixture module,

[0037] 11. Support frame,

[0038] 111, lower plate, 112, upper plate, 113, outer support column, 114, middle plate, 115, inner support column,

[0039] 12. Centering components,

[0040] 121, clamping block, 1211, groove, 1212, limiting groove, 1213, limiting hole,

[0041] 122. Clamp drive element,

[0042] 1221, bearing platform, 12211, lifting hole,

[0043] 1222, slider, 12221, limit column,

[0044] 13. Rotating assembly,

[0045] 131. Rotating body, 132. Rotating block, 133. Sensor, 134. Zeroing piece,

[0046] 14. Lifting components,

[0047] 141, lifting rod, 1411, positioning column,

[0048] 142, jacking drive device, 1421, top block, 14211, fixing hole,

[0049] 143. Upper bearing,

[0050] 144, lower bearing,

[0051] 15. Downward pressure assembly, 151. Pressure head, 152. Downward pressure drive device, 153. Vertical plate, 154. Horizontal plate,

[0052] 2. Laser module, 21. Welding head, 22. Y-axis module, 23. Z-axis module, 24. Connecting piece, 241. First connecting piece, 242. Second connecting piece, 25. Angle adjustment piece, 251. First angle adjustment piece, 2511. First arc hole, 252. Second angle adjustment piece, 2521. Second arc hole.

[0053] In the figures, structurally similar elements are denoted by the same reference numerals. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0055] Directional terms mentioned in this invention, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only used with reference to the directions of the drawings. The directional terms used are used to illustrate and understand the invention, and are not intended to limit the invention.

[0056] The terms "first" and "second" in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, nor as limiting the order of precedence.

[0057] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0058] Conventional welding equipment generally consists of a welding jig module and a welding head. The welding jig module includes a fixed block and a pressure head. The fixed block is provided with a positioning slot, and the pressure head is positioned above the positioning slot. During use, the battery is placed in the positioning slot, and the pressure head presses down to tighten the top cover and the housing, and then the welding head welds the two together. The welding mechanism with the above structure makes it difficult to remove the battery after welding, reducing work efficiency.

[0059] The following is a preferred embodiment of a button battery welding device provided by the present invention that can solve the above technical problems.

[0060] Please refer to Figure 1 The preferred embodiment of the present invention provides a button battery welding device for welding the shell and top cover of a button battery. The button battery welding device includes a welding fixture module 1 and a laser module 2.

[0061] Please refer to Figure 2 、 Figure 3 and Figure 4 The welding jig module 1 includes a support frame 11, a centering component 12, a rotating component 13, a lifting component 14 and a pressing component 15. The centering component 12 is arranged on the support frame 11, and includes a bearing platform 1221, a plurality of clamping blocks 121 and a clamping block driving member 122. The bearing platform 1221 is arranged on the clamping block driving member 122, and a circular lifting hole 12211 is provided on the bearing platform 1221, and the lifting hole 12211 vertically passes through the bearing platform 1221. The lifting hole 12211 is circular, which is easier to process. A plurality of clamping blocks 121 surround the lifting hole 12211, and each clamping block 121 is radially slidably arranged on the bearing platform 1221 along the lifting hole 12211. When the clamping block 121 clamps the shell, there is a gap between two adjacent clamping blocks 121. The clamping block driving member 122 is connected to the plurality of clamping blocks 121 and is used to drive the plurality of clamping blocks 121 to move closer to or away from the lifting hole 12211 so that the shell and the top cover are coaxially arranged with the lifting hole 12211 .

[0062] Please refer to Figure 2 and Figure 6The rotating assembly 13 is arranged on the support frame 11 and connected to the centering assembly 12, and is used to drive the centering assembly 12 to rotate around the central axis of the jacking hole 12211.

[0063] Please refer to Figure 2 and Figure 7 The lifting assembly 14 includes a lifting rod 141 and a lifting drive device 142. The lifting rod 141 is cylindrical and is vertically movable and penetrates the lifting hole 12211, and the two are coaxially arranged. The lifting drive device 142 is arranged on the support frame 11 and connected to the lifting rod 141. It is used to drive the lifting rod 141 to move vertically to lift the shell and the top cover, and make the connection between the two higher than the clamping block 121. The cylindrical shape of the lifting rod 141 facilitates processing and cooperates with the circular lifting hole 12211.

[0064] Please refer to Figure 2 The pressing assembly 15 includes a pressing head 151 and a pressing drive 152. The pressing head 151 is vertically movable above the lifting hole 12211 and is coaxial with the lifting hole 12211. The pressing drive 152 is disposed on the support frame 11 and connected to the pressing head 151, and is used to drive the pressing head 151 to move toward or away from the lifting hole 12211 to press the shell and the top cover together.

[0065] Please refer to Figure 1 and Figure 8 The laser module 2 includes a welding head 21 , which is arranged on one side of the centering component 12 .

[0066] The button battery welding equipment of the present invention, during processing, first drives the multiple clamping blocks 121 away from the jacking hole 12211 through the clamping block driving member 122, and drives the jacking rod 141 through the jacking driving device 142 to move its top surface to be flush with or lower than the top surface of the carrier 1221, so that the shell and the top cover are placed on the jacking hole 12211 of the carrier 1221 and supported on the top surface of the carrier 1221, and then drives the multiple clamping blocks 121 close to the shell through the clamping block driving member 122, so that the multiple clamping blocks 121 clamp the shell, and the shell and the top cover are aligned with the jacking hole 1221. 1 is coaxially arranged, and then the pressing head 151 is driven by the pressing drive device 152 to move toward the direction close to the lifting hole 12211 to press the top cover and the shell, and then the welding head 21 is used to spot weld a connection between the shell and the top cover located in the gap between the two clamping blocks 121. The pressing drive device 152 drives the pressing head 151 away from the shell, and the rotating assembly 13 drives the centering assembly 12 to rotate a certain angle around the central axis of the lifting hole 12211. The pressing drive device 152 drives the pressing head 151 again to approach the shell to press the top cover and the shell, so as to spot weld the connection between the shell and the top cover located in the gap between the other clamping blocks 121 through the welding head 21. After the spot welding is completed, the multiple clamps 121 are first driven away from the shell again by the clamp block driving member 122, and then the jacking drive device 142 drives the jacking rod 141 to rise, so that the connection between the shell and the top cover is higher than the clamp block 121, and then the multiple clamp blocks 121 are driven to approach the shell again by the clamp block driving member 122 to clamp the shell, and make the shell and the top cover coaxially arranged with the jacking hole 12211, and the jacking drive device 142 drives the jacking rod 141 to descend and separate from the shell, and the centering assembly 12 is driven to rotate around the central axis of the jacking hole 12211 by the rotating assembly 13 to perform circumferential welding on the connection between the top cover and the shell, and finally the multiple clamp blocks 121 are driven away from the shell by the clamp block driving member 122, so that the button battery can be easily removed. The button battery welding equipment of the present invention can first perform spot welding and then circumferential welding on the connection between the shell and the top cover through the cooperation of the centering component 12, the rotating component 13, the lifting component 14 and the pressing component 15. During spot welding, the pressure head 151 is pressed on the top cover, and the shell is supported by a supporting platform 1221 under the shell. The circumferential surface is limited by a clamping block 121 to prevent the shell from shifting, and the clamping block 121 makes the shell and the lifting hole 12211 coaxially arranged. Because the pressure head 151 is also coaxially arranged with the lifting hole 12211, the force of the pressure head 151 pressing on the top cover is uniform, so that the gap between the shell and the top cover remains uniform, which is convenient for spot welding and fixing the shell and the top cover. Finally, the weld bead at the connection between the two during circumferential welding is uniform, and the size of the button battery is more standard. After the circumferential welding is completed, the clamping block 121 is away from the shell, which is convenient for removing the button battery, effectively improving the processing efficiency.

[0067] Please refer to Figure 3The three evenly distributed clamping blocks 121 minimize the number of clamping blocks 121 while ensuring the housing is securely clamped and not easily displaced, resulting in a simple structure. During spot welding, evenly spot welding the connection between the housing and the top cover at three locations ensures a stable connection between the two, minimizes weld spots, and improves welding efficiency.

[0068] Please refer to Figure 5 The end face of the clamping block 121 near the lifting hole 12211 is an arc-shaped surface, and an L-shaped groove 1211 is provided on the top thereof. When the lifting rod 141 lifts the shell and the top cover, the upper end face of the lifting rod 141 is flush with the bottom surface below the groove 1211. For some button-type batteries, the edge of the top cover is wrapped around the outside of the shell. With the above structure, when the shell and the top cover are placed on the supporting platform 1221, and multiple clamping blocks 121 clamp the shell, the arc-shaped surface maximizes the contact area between the clamping block 121 and the shell, and when the pressure head 151 presses the top cover toward the shell, the shell will not shift. The groove 1211 can avoid the top cover and prevent the clamping block 121 from clamping the top cover, which would cause the pressure head 151 to be unable to press the top cover and the shell. At the same time, when the lifting rod 141 lifts the shell and the top cover, and the clamping block 121 clamps the shell again, the shell can be located in the groove 1211, limiting its position so that it will not shift downward.

[0069] The pressing assembly 15 also includes a pressure control device connected to the pressing head 151 to control the force with which the pressing head 151 presses against the top cover. The pressure control device can precisely control the pressure of the pressing head 151 and ensure that the downward force of the pressing head 151 is consistent each time during spot welding, thereby maintaining a consistent gap between the top cover and the shell, improving weld quality.

[0070] Centering assembly 12 also includes a proportional valve connected to clamping block 121 to control the force with which clamping block 121 grips the housing. The proportional valve precisely controls the force with which clamping block 121 grips the housing, preventing either insufficient clamping force that could cause displacement of the housing or excessive clamping force that could cause deformation of the housing.

[0071] Please refer to Figure 2The support frame 11 includes a lower plate 111, an upper plate 112 and a plurality of external support columns 113. The lower plate 111 and the upper plate 112 are both arranged horizontally, the lower plate 111 is located below the upper plate 112, and a plurality of external support columns 113 are connected between the lower plate 111 and the upper plate 112. The jacking drive device 142 is arranged on the lower plate 111, the jacking rod 141 is vertically movable through the upper plate 112, the rotating assembly 13 is arranged on the upper plate 112, and the jacking drive device 142 and the rotating assembly 13 are both located between the areas surrounded by the plurality of external support columns 113. The pressing assembly 15 is arranged on the upper plate 112. The support frame 11 of the above structure has a simple structure, is easy to process, and is firm. By connecting the lower plate 111 and the upper plate 112 by a plurality of external support columns 113, a retaining structure can be formed to effectively protect the internal structure.

[0072] Please continue to refer to Figure 2 The support frame 11 also includes a middle plate 114 and a plurality of inner support columns 115. The middle plate 114 is located between the lower plate 111 and the upper plate 112. The plurality of inner support columns 115 are connected between the middle plate 114 and the lower plate 111 and are located in a space surrounded by the plurality of outer support columns 113. The lifting assembly 14 also includes an upper bearing 143 and a lower bearing 144. The upper bearing 143 is arranged on the bottom surface of the upper plate 112, and the lower bearing 144 is arranged on the top surface of the middle plate 114. The two ends of the lifting rod 141 are respectively passed through the middle plate 114 and the upper plate 112, and are connected to the upper bearing 143 and the lower bearing 144. The lifting rod 141 is relatively long and is prone to shaking during vertical movement. By connecting its two ends with the upper bearing 143 and the lower bearing 144, the movement of the lifting rod 141 can be stabilized. The middle plate 114 and the lower plate 111 are connected by the inner support columns 115, so that the structure is simple, and the multiple inner support columns 115 constitute an enclosure structure, which can effectively protect the internal structure.

[0073] Please refer to Figure 2 and Figure 7 The lifting drive device 142 is a double-rod cylinder. The lifting drive device 142 includes a top block 1421 that is movably arranged in the vertical direction. The top block 1421 is located between the middle plate 114 and the lower plate 111, and is located in a space surrounded by multiple inner support columns 115. A fixing hole 14211 is provided on the upper surface of the top block 1421, and a positioning column 1411 is provided at the bottom end of the lifting rod 141. The positioning column 1411 is set in the fixing hole 14211. By driving the lifting rod 141 by the double-rod cylinder, the movement of the lifting rod 141 can be stably achieved. The top block 1421 is located between the middle plate 114 and the lower plate 111, and is located in a space surrounded by multiple inner support columns 115, and can be effectively protected. The positioning column 1411 is set in the fixing hole 14211, thereby connecting the lifting rod 141 and the top block 1421, making the assembly process simple.

[0074] Please refer to Figure 2The press-down assembly 15 further includes a vertical plate 153 and a horizontal plate 154. The vertical plate 153 is vertically connected to the top surface of the upper plate 112 and is located on one side of the centering assembly 12. One end of the horizontal plate 154 is vertically connected to the end of the vertical plate 153 away from the upper plate 112, and the other end is located above the centering assembly 12 and connected to the press-down assembly 15. In the above structure, the press-down assembly 15 is fixed by the vertical plate 153 and the horizontal plate 154, so that there is enough space around the multiple clamping blocks 121 for the welding head 21 to facilitate its welding of the connection between the shell and the top cover.

[0075] Please refer to Figure 4 and Figure 5 , the clamping block 121 is provided with a limiting groove 1212 and a limiting hole 1213. The limiting groove 1212 is located at the bottom of the clamping block 121 and is a long strip arranged along the sliding direction of the clamping block 121, and its two ends pass through the clamping block 121. The limiting hole 1213 passes through the clamping block 121 vertically. The clamping block driving member 122 is set as a clamping claw cylinder, and a plurality of sliders 1222 are provided on the supporting platform 1221. The sliders 1222 are connected to the clamping block 121 one by one. The sliders 1222 are set to slide radially along the jacking hole 12211. A limiting column 12221 is also provided on the top of the slider 1222. The limiting column 12221 is set in the limiting hole 1213. The slider 1222 is connected to the clamping block 121 through a first screw. The first screw and the limiting column 12221 are arranged along the sliding direction of the slider 1222. In the above structure, the clamping block 121 and the slider 1222 are detachably connected, making it easy to replace the clamping block 121 with a different curved surface for button batteries of different sizes. When assembling the clamping block 121 and the slider 1222, the slider 1222 is placed in the retaining groove 1212 of the clamping block 121, and the retaining post 12221 is positioned in the retaining hole 1213. The clamping block 121 and the slider 1222 are then secured with a first screw for precise assembly.

[0076] Please refer to Figure 6 The rotating assembly 13 includes a rotating body 131, a rotating block 132, an inductor 133, and a zeroing plate 134. The rotating body 131 is arranged on the support frame 11, the rotating block 132 is rotatably connected to the rotating body 131, and is fixedly connected to the clamping block driving member 122. The inductor 133 is arranged on the rotating body 131, and the zeroing plate 134 is arranged on the rotating block 132. With the above structure, the zeroing plate 134 can be set as the initial position of the rotating block 132 when it is located at the inductor 133. At this time, the welding head 21 is just located in the gap between the two adjacent clamping blocks 121, which is convenient for spot welding. Then, based on the initial position, it is rotated by a certain angle to perform the next spot welding.

[0077] Please refer to Figure 8 and Figure 9The laser module 2 also includes a Y-axis module 22, a Z-axis module 23, a connector 24, and an angle adjustment member 25. The angle adjustment member 25 includes a first angle adjustment piece 251 and a second angle adjustment piece 252 connected vertically, and the connector 24 includes a first connecting piece 241 and a second connecting piece 242 connected vertically. The first angle adjustment piece 251 is provided with a plurality of first arc-shaped holes 2511, which are arranged in a ring. The first angle adjustment piece 251 is connected to the welding head 21 by a second screw passing through the first arc-shaped holes 2511. The second angle adjustment piece 252 is provided with a plurality of second arc-shaped holes 2521, which are arranged in a ring. The second angle adjustment piece 252 is connected to the first connecting piece 241 by a third screw passing through the second arc-shaped holes 2521. The Z-axis module 23 is connected to the second connecting piece 242. The Z-axis module 23 is used to drive the welding head 21 to move vertically. The Y-axis module 22 is connected to the Z-axis module 23 and is used to drive the welding head 21 to move longitudinally. During spot welding, the welding head 21 is located at a low position. During circumferential welding, the welding head 21 is located at a high position. With this structure, the Z-axis module 23 can be used to control the welding head 21 to be located at an appropriate height. The longitudinal position of the welding head 21 can be controlled by the Y-axis module 22. By adjusting the position of the second screw in the first arc hole 2511 and by adjusting the position of the third screw in the second arc hole 2521, the relative position of the welding head 21 and the button battery can be fine-tuned.

[0078] Please refer to Figure 1 The welding head 21 is tilted upward and located below the connection between the top cover and the shell. The laser emission direction of the welding head 21 forms a 30° angle with the horizontal plane. Because the outer periphery of the top cover protrudes beyond the outer periphery of the shell, this structure facilitates alignment at the connection between the top cover and the shell, ensuring uniform welds during spot and circumferential welding.

[0079] The button battery welding equipment of the present invention, during processing, first drives multiple clamps away from the jacking holes through the clamping block driving member, and drives the jacking rod through the jacking driving device to move its top surface to be flush with or lower than the top surface of the supporting platform, so that the shell and the top cover are placed on the jacking hole of the supporting platform and supported on the top surface of the supporting platform, and then drives multiple clamps close to the shell through the clamping block driving member, so that the multiple clamps clamp the shell, and make the shell and the top cover coaxially arranged with the jacking hole, and then drives the pressure head to move in the direction close to the jacking hole through the downward pressure driving device to press the top cover and the shell, and then spot welds the shell and the top cover at a connection between the two clamping blocks through the welding head, the downward pressure driving device drives the pressure head away from the shell, the rotating assembly drives the centering assembly to rotate a certain angle around the central axis of the jacking hole, and the downward pressure driving device drives the pressure head close to the shell again to press the top cover and the shell, so as to spot weld the shell and the top cover at the connection between the other clamping block gaps through the welding head. After the spot welding is completed, the multiple clamps are first driven away from the shell again by the clamp driving member, and then the jacking drive device drives the jacking rod to rise, so that the connection between the shell and the top cover is higher than the clamp, and then the multiple clamps are driven by the clamp driving member to approach the shell again to clamp the shell, and make the shell and the top cover coaxially arranged with the jacking hole. The jacking drive device drives the jacking rod to descend and separate from the shell, and drives the centering assembly to rotate around the central axis of the jacking hole through the rotating assembly to perform circumferential welding on the connection between the top cover and the shell, and finally drives the multiple clamps away from the shell by the clamp driving member, so that the button battery can be easily removed. The button battery welding equipment and button battery shell welding method of the present invention can first perform spot welding and then perform circumferential welding on the connection between the shell and the top cover through the cooperation of the centering component, the rotating component, the lifting component and the pressing component. During spot welding, the pressure head is pressed on the top cover, and the shell is supported by a bearing platform under the shell. There are clamps on the circumferential surface to limit it, so that the shell will not shift, and the clamps make the shell and the lifting hole coaxially arranged. Because the pressure head is also coaxially arranged with the lifting hole, the force of the pressure head pressing on the top cover is uniform, so that the gap between the shell and the top cover remains uniform, which is convenient for spot welding, and the shell and the top cover are fixed, and finally the weld bead at the connection between the two during circumferential welding is uniform, and the size of the button battery is more standard. After the circumferential welding is completed, the clamps are away from the shell, which is convenient for removing the button battery, effectively improving the processing efficiency.

[0080] To sum up, although the present invention has been disclosed as above in terms of preferred embodiments, the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent substitutions or changes based on the concept of the technical solution of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A button battery welding device for welding the shell and top cover of a button battery, characterized in that: The button battery welding equipment includes a welding fixture module and a laser module; The welding fixture module includes: Support frame; The centering component is arranged on the support frame, and includes a bearing platform, a plurality of clamping blocks and a clamping block driving member; the bearing platform is arranged on the clamping block driving member, and a circular jacking hole is provided on the bearing platform, and the jacking hole vertically penetrates the bearing platform; the plurality of clamping blocks surround the jacking hole, and each clamping block is radially slidably arranged on the bearing platform along the jacking hole, and when the clamping blocks clamp the shell, there is a gap between two adjacent clamping blocks; the clamping block driving member is connected to the plurality of clamping blocks, and is used to drive the plurality of clamping blocks to move closer to or away from the jacking hole, so that the shell and the top cover are coaxially arranged with the jacking hole; a rotating assembly, which is disposed on the support frame and connected to the centering assembly, and is used to drive the centering assembly to rotate around the central axis of the jacking hole; A jacking assembly, comprising a jacking rod and a jacking drive device; the jacking rod is cylindrical and is vertically movable and penetrates the jacking hole, and the two are coaxially arranged; the jacking drive device is arranged on the support frame and connected to the jacking rod, and is used to drive the jacking rod to move vertically to lift the shell and the top cover, and make the connection between the two higher than the clamping block; and A pressing assembly, comprising a pressing head and a pressing drive device; the pressing head is vertically movable above the jacking hole, and the pressing head and the jacking hole are coaxially arranged; the pressing drive device is arranged on the support frame and connected to the pressing head, and is used to drive the pressing head to move closer to or away from the jacking hole to press the shell and the top cover; The laser module includes a welding head, which is arranged on one side of the centering component.

2. The button battery welding equipment according to claim 1, characterized in that: The end surface of the clamping block close to the lifting hole is an arc-shaped surface, and an L-shaped groove is provided on the top. When the lifting rod lifts the shell and the top cover, the upper end surface of the lifting rod is flush with the bottom surface of the groove.

3. The button battery welding equipment according to claim 1, characterized in that: The number of the clamping blocks is 3.

4. The button battery welding equipment according to claim 1, characterized in that: The pressing assembly further includes a pressure control device connected to the pressing head for controlling the force with which the pressing head presses against the top cover.

5. The button battery welding equipment according to claim 1, characterized in that: The centering assembly further includes a proportional valve connected to the clamping block for controlling the force with which the clamping block clamps the housing.

6. The button battery welding equipment according to claim 1, characterized in that: The support frame includes a lower plate, an upper plate and a plurality of outer support columns; the lower plate and the upper plate are both arranged horizontally, the lower plate is located below the upper plate, and the plurality of outer support columns are connected between the lower plate and the upper plate, the jacking drive device is arranged on the lower plate, the jacking rod is vertically movable through the upper plate, the rotating assembly is arranged on the upper plate, and the jacking drive device and the rotating assembly are both located between the areas surrounded by the plurality of outer support columns; the pressing assembly is arranged on the upper plate.

7. The button battery welding equipment according to claim 6, characterized in that: The support frame also includes a middle plate and multiple inner support columns, the middle plate is located between the lower plate and the upper plate, the multiple inner support columns are connected between the middle plate and the lower plate, and are located in the space surrounded by the multiple outer support columns; the jacking assembly also includes an upper bearing and a lower bearing, the upper bearing is arranged on the bottom surface of the upper plate, and the lower bearing is arranged on the top surface of the middle plate, and the two ends of the jacking rod are respectively passed through the middle plate and the upper plate, and are connected to the upper bearing and the lower bearing.

8. The button battery welding equipment according to claim 7, characterized in that: The jacking drive device is a double-rod cylinder, which includes a top block movably arranged in the vertical direction, and the top block is located between the middle plate and the lower plate, and is located in the space surrounded by multiple inner support columns; a fixing hole is provided on the upper surface of the top block, and a positioning column is provided at the bottom end of the jacking rod, and the positioning column is arranged in the fixing hole.

9. The button battery welding equipment according to claim 1, characterized in that: The clamping block is provided with a limiting groove and a limiting hole; the limiting groove is located at the bottom of the clamping block, and is a long strip arranged along the sliding direction of the clamping block, and its two ends pass through the clamping block; the limiting hole passes through the clamping block vertically; the clamping block driving member is provided as a clamping claw cylinder, and a plurality of sliders are provided on the supporting platform, and the sliders are connected to the clamping block in a one-to-one correspondence, and the sliders are arranged along the radial sliding of the jacking hole. A limiting column is also provided on the top of the slider, and the limiting column is arranged in the limiting hole. The slider is connected to the clamping block by a first screw, and the first screw and the limiting column are arranged along the sliding direction of the slider.

10. The button battery welding equipment according to any one of claims 1 to 9, characterized in that: The laser module also includes a Y-axis module, a Z-axis module, a connecting piece and an angle adjustment piece; the angle adjustment piece includes a first angle adjustment piece and a second angle adjustment piece connected vertically, the connecting piece includes a first connecting piece and a second connecting piece connected vertically, the first angle adjustment piece is provided with a plurality of first arc holes, the plurality of first arc holes are surrounded in a ring, the first angle adjustment piece is connected to the welding head through the first arc hole by a second screw, the second angle adjustment piece is provided with a plurality of second arc holes, the plurality of second arc holes are surrounded in a ring, the second angle adjustment piece is connected to the first connecting piece through the second arc hole by a third screw, the Z-axis module is connected to the second connecting piece, the Z-axis module is used to drive the welding head to move vertically, and the Y-axis module is connected to the Z-axis module for driving the welding head to move longitudinally.

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