An automatic welding device for battery production

Abstract

The application discloses an automatic welding device for battery production and relates to the technical field of battery production welding. The automatic welding device for battery production comprises a welding mechanism and a cabinet, a dividing disc assembly is installed on the cabinet, the dividing disc assembly comprises a stand column fixed on the cabinet, a rotating disc is arranged on the surface of the stand column, clamping pieces are fixed on the rotating disc in a circumferential array, support frames are fixed on the clamping pieces, placing frames are fixed on the upper ends of the support frames, and air cylinders are fixed on the upper ends of the stand column. The "cone column-rubber ring" elastic positioning piece is used, after the tab is put into the positioning groove, the spring drives the rubber ring to elastically abut against the tab, the rotation vibration is avoided to cause the tab to fall off, meanwhile, the flexible contact of the rubber ring does not damage the tab, the tab is placed, the bevel gear is driven to rotate and store torsion, after the tab is mechanically separated, the torsion spring is reset to drive the rubber ring to rotate, the tab is pushed to be closely combined with the battery welding position, and the welding precision is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery production welding, in particular to an automatic welding device for battery production. BACKGROUND

[0002] A battery is a portable energy storage and output device that directly converts chemical energy into electrical energy through electrochemical oxidation-reduction reaction, can realize the "storage-release" cycle (rechargeable battery) or single release (primary battery), and is widely used in consumer electronics, new energy vehicles, energy storage systems, industrial equipment and other fields. It is an indispensable energy supply core component in modern society. In the tab welding process of battery production, the tab needs to be precisely attached to the battery welding position and then laser welded.

[0003] However, in practical applications, there are still some problems that have not been solved. The following are some common problems of the automatic welding device for battery production: first, the tab positioning is unstable, and when the device rotates, the tab is easy to fall off from the positioning groove due to vibration or centrifugal force, resulting in welding interruption; second, the tab is not tightly attached to the battery, and after placing the tab manually or mechanically, gaps are easy to appear, affecting the welding quality (such as false welding and welding). SUMMARY

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application. Such simplifications or omissions cannot be used to limit the scope of the present application.

[0005] In view of the above and / or existing problems in the automatic welding device for battery production, the present application is proposed.

[0006] Therefore, the problem to be solved by the present application is how to solve the problems of unstable tab positioning and loose tab attachment to the battery.

[0007] To solve the above technical problems, the application provides the following technical scheme: an automatic welding device for battery production, comprising a welding mechanism, which comprises a cabinet, a dividing disc assembly is installed on the cabinet, the dividing disc assembly comprises a stand column fixed on the cabinet, a rotating disc is rotatably arranged on the surface of the stand column, a plurality of clamping pieces are fixed on the rotating disc in a circumferential array, a support frame is fixed on the clamping piece, a placing frame is fixed on the upper end of the support frame, a gas cylinder is fixed on the upper end of the stand column, a push plate is fixed on the output end of the gas cylinder, a top plate is fixed on the push plate, a clamping block is fixed on one end surface of the top plate, a driving piece for driving the rotating disc to rotate is installed on the cabinet; and a positioning and fitting mechanism is installed on the placing frame and comprises a groove and a circular groove, the positioning and fitting piece is installed on the inner wall of the circular groove, the unlocking and pushing piece is installed on the placing frame and is matched with the top plate and the positioning and fitting piece, the fixing piece is installed on the unlocking and pushing piece and is matched with the clamping block, and the anti-sticking piece is installed on the placing frame and is matched with the unlocking and pushing piece.

[0008] As a preferred scheme of the automatic welding device for battery production, the welding mechanism further comprises an upper material carrying assembly, a wrong material assembly, a small material carrying rotating assembly, a welding assembly and a lower material carrying assembly which are fixed on the top of the cabinet, and a vibrating disc is installed on one side of the cabinet.

[0009] As a preferred scheme of the automatic welding device for battery production, the top of the cabinet is respectively fixed with an upper material assembly line and a lower material assembly line, the upper material assembly line is located on one side of the upper material carrying assembly, the lower material assembly line is located on one side of the lower material carrying assembly, and a box with a box door is fixed on the top of the cabinet.

[0010] As a preferred scheme of the automatic welding device for battery production, the positioning and fitting piece comprises a tapered column which slides in the circular groove, a spring is fixed between one end of the tapered column and the inner wall of the circular groove, a rotating column is rotatably arranged in one end of the tapered column, a rotating wheel is fixed on the upper end of the rotating column, and a rubber ring is fixed on the surface of the rotating wheel.

[0011] As a preferred scheme of the automatic welding device for battery production, a rotating rod is rotatably arranged in the tapered column, a sleeve is sleeved on the surface of the rotating rod, one end of the sleeve slides on the tapered column, the other end of the sleeve is fixed on the inner wall of the circular groove, a driving groove is formed in the inner wall of the sleeve, a ball is embedded in one end of the inner cavity of the sleeve and slides in the driving groove, a bevel gear is fixed on the other end of the rotating rod, a bevel gear ring is rotatably arranged in the tapered column and is engaged with the bevel gear, a torsion spring is sleeved on the surface of the rotating column and is fixed on the inner wall of the bevel gear ring.

[0012] As a preferred scheme of the automatic welding device for battery production, the conical column is provided with a trigger groove matched with the unlocking pusher, the surface of the conical column is fixed with a sliding block, and the inner wall of the circular groove is provided with a sliding groove.

[0013] As a preferred scheme of the automatic welding device for battery production, the unlocking pusher comprises a moving plate sliding in the groove body, the moving plate is respectively provided with a guide groove one and a guide groove two, a moving rod slides in the placing rack, one end of the moving rod is fixed with a guide column one which slides in the guide groove one, the other end surface of the moving rod is fixed with an unlocking block which is matched with the trigger groove, the moving rod penetrates the trigger groove and slides on the conical column, a push rod slides in the placing rack, one end of the push rod is fixed with a guide column two which slides in the guide groove two, and the two ends of the push rod away from the guide column two are respectively fixed with a push block one and a push block two.

[0014] As a preferred scheme of the automatic welding device for battery production, the driving plate slides on the placing rack, the driving plate is provided with a guide hole, one end of the moving plate is fixed with a guide column three which slides in the guide hole, the driving plate is provided with a square hole for moving on the placing rack, a spring two is fixed between the inner wall of the square hole and the surface of the placing rack, and a limiting block is fixed on one side of the driving plate.

[0015] As a preferred scheme of the automatic welding device for battery production, the driving plate is provided with a connecting rod which slides on the driving plate, one end of the connecting rod is provided with a buckle which is matched with the clamping block, a spring is fixed between the inner wall of the buckle and the surface of the connecting rod, the buckle is provided with an unlocking groove, an unlocking plate slides in the inner wall of the unlocking groove, one end of the unlocking plate is fixed on the surface of the driving plate, the other end of the connecting rod is fixed with a square block, the surface of the connecting rod close to the square block is provided with a spring three, and the two ends of the spring three are respectively fixed on the surface of the square block and the surface of the driving plate.

[0016] As a preferred scheme of the automatic welding device for battery production, the anti-sticking piece comprises an air cavity provided in the placing rack, a piston slides in the inner wall of the air cavity and is matched with the moving rod, a spring four is fixed between the surface of the piston and the inner wall of the air cavity, an air bag is fixed on the placing rack, the surface of the air bag is connected with a connecting pipe, the connecting pipe penetrates the placing rack and is connected with the air cavity, and one end of the moving rod extends into the inner cavity of the air cavity.

[0017] The present application has the beneficial effects that: 1. Through the "cone column-rubber ring" elastic positioning piece, after the tab is put into the positioning groove, the spring drives the rubber ring to elastically abut against the tab, avoiding the tab from falling off due to rotation vibration, and the flexible contact of the rubber ring does not damage the tab, through the transmission of the torsional spring and the bevel gear, the tab is driven to rotate the bevel gear to store torsion when being placed, and the torsional spring is reset to drive the rubber ring to rotate after mechanical disengagement, the tab is pushed to closely contact the battery welding position, and the welding precision is ensured.

[0018] 2. Through the air bag design of the anti-sticking piece, the air bag is inflated to fill the gap during welding, the welding slag is avoided from being adhered, the air bag is deflated when the material is discharged after welding is completed, and the push plate is synchronously pushed, so that the battery is smoothly separated, the device integrates the feeding / discharging assembly line, the vibration disc and the indexing disc, realizes the full automation of "feeding-positioning-welding-discharging", is suitable for the existing battery production assembly line, and does not need additional modification. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 The overall three-dimensional structure of the automatic welding device for battery production Figure 1 .

[0021] Figure 2 The overall three-dimensional structure of the automatic welding device for battery production Figure 2 .

[0022] Figure 3 The local structure three-dimensional of the automatic welding device for battery production Figure 1 .

[0023] Figure 4 The local structure three-dimensional of the automatic welding device for battery production Figure 2 .

[0024] Figure 5 The misplacement assembly three-dimensional view of the automatic welding device for battery production.

[0025] Figure 6 The turntable and clamping piece three-dimensional view of the automatic welding device for battery production.

[0026] Figure 7 The driving piece and clamping piece three-dimensional view of the automatic welding device for battery production.

[0027] Figure 8Perspective view of a placement rack and a cylinder for an automatic welding device for battery production.

[0028] Figure 9 Perspective view of a placement rack for an automatic welding device for battery production. Figure 8 Magnified view of area A in the middle.

[0029] Figure 10 Perspective view of a placement rack for an automatic welding device for battery production. Figure 1 .

[0030] Figure 11 Perspective view of a placement rack for an automatic welding device for battery production. Figure 10 Magnified view of area B in the middle.

[0031] Figure 12 Perspective view of a placement rack for an automatic welding device for battery production. Figure 2 .

[0032] Figure 13 Perspective view of a placement rack for an automatic welding device for battery production. Figure 3 .

[0033] Figure 14 Perspective view of a placement rack and a tapered column for an automatic welding device for battery production.

[0034] Figure 15 Perspective view of a placement rack for an automatic welding device for battery production. Figure 14 Magnified view of area C in the middle.

[0035] Figure 16 Perspective view of a placement rack for an automatic welding device for battery production. Figure 14 Magnified view of area D in the middle.

[0036] Figure 17 Perspective view of a placement rack for an automatic welding device for battery production.

[0037] Figure 18 Perspective view of a placement rack and a moving plate for an automatic welding device for battery production. Figure 1 .

[0038] Figure 19 Perspective view of a placement rack for an automatic welding device for battery production. Figure 18 Magnified view of area E in the middle.

[0039] Figure 20 Perspective view of a placement rack for an automatic welding device for battery production. Figure 18 Magnified view of area F in the middle.

[0040] Figure 21 Perspective view of a placement rack and a moving plate for an automatic welding device for battery production. Figure 2 .

[0041] Figure 22 Clamping block and unlocking plate for automatic welding device for battery production Figure 21 Enlarged view of G area in figure.

[0042] Figure 23 Clamping block and unlocking plate for automatic welding device for battery production

[0043] In the figure: 1, welding mechanism; 11, cabinet; 12, index plate assembly; 13, feeding and carrying assembly; 14, misplaced material assembly; 15, small material carrying and rotating assembly; 16, welding assembly; 17, discharging and carrying assembly; 18, vibration disc; 19, feeding assembly line; 110, discharging assembly line; 111, box body; 121, stand column; 122, rotating disc; 123, clamping piece; 124, support frame; 125, placing frame; 126, air cylinder; 127, push plate; 128, top plate; 1281, clamping block; 129, driving piece; 2, positioning and fitting mechanism; 21, groove body; 22, circular groove; 23, positioning and fitting piece; 24, unlocking and pushing piece; 25, fixing piece; 26, anti-sticking piece; 231, tapered column; 232, spring one; 233, rotating column; 234, rotating wheel; 235, rubber ring; 236, rotating rod; 237, sleeve; 238, driving groove; 239, ball; 2310, bevel gear; 2311, bevel gear ring; 2312, torsion spring; 2313, trigger groove; 2314, sliding block; 2315, sliding groove; 241, moving plate; 242, guide groove one; 243, guide groove two; 244, moving rod; 245, guide column one; 246, unlocking block; 247, push rod; 248, guide column two; 249, push block one; 2410, push block two; 2411, driving plate; 2412, guide hole; 2413, guide column three; 2414, square hole; 2415, spring two; 2416, limiting block; 251, connecting rod; 252, clamping block; 253, elastic sheet; 254, unlocking groove; 255, unlocking plate; 256, square block; 257, spring three; 261, air cavity; 262, piston; 263, spring four; 264, air bag; 265, connecting pipe. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0045] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0046] Second, the "one embodiment" or "an embodiment" referred to herein means a specific feature, structure, characteristic, or combination of features and / or characteristics described herein that can be included in at least one implementation of the present application. The various appearances of "in one embodiment" or "an embodiment" in the specification do not all refer to the same embodiment, although they can.

[0047] Embodiment 1, refer to Figures 1-12 As a first embodiment of the present application, the embodiment provides an automatic welding device for battery production, the automatic welding device for battery production comprises a welding mechanism 1 and a positioning and fitting mechanism 2.

[0048] Specifically, the welding mechanism 1 comprises a cabinet 11, a dividing disc assembly 12 is installed on the cabinet 11, through the design of the dividing disc assembly 12, a plurality of processing stations are arranged thereon, so that different processing operations are performed at each station during intermittent rotation, the dividing disc assembly 12 comprises a stand 121 fixed on the cabinet 11, a rotating disc 122 is rotatably arranged on the surface of the stand 121, the rotating disc 122 is rotatably connected with the stand 121 through a bearing, and a plurality of clamping pieces 123 are fixedly arranged on the rotating disc 122 in a circumferential array.

[0049] Four clamping pieces 123 are arranged on the rotating disc 122, which correspond to four stations of battery feeding, tab feeding, welding and discharging, and can perform continuous processing operation, thereby greatly improving the processing efficiency, saving a large amount of labor cost, and making each processing position not to be stopped, the clamping piece 123 can realize the fixing and unlocking operation of the battery, which is the prior art, and the working principle is also the prior art, and the skilled in the art can clearly know it, which will not be repeated here.

[0050] The clamping piece 123 is fixed with a support frame 124, the support frame 124 is fixed with a placing frame 125 at the upper end, two support frames 124 are arranged on one clamping piece 123, which play a supporting role for the placing frame 125 and limit the clamped battery, and the ends of one placing frame 125 are provided with positioning grooves for placing tabs, so that the subsequent small material carrying rotating assembly 15 carries the tabs on the wrong material assembly 14 into the positioning grooves on the placing frame 125, and the laser welding assembly 16 performs laser welding between the battery and the tabs.

[0051] The upper end of the stand 121 is fixed with a gas cylinder 126, and the output end of the gas cylinder 126 is fixed with a push plate 127. Through the arrangement of the push plate 127, when the gas cylinder 126 operates to push the movement, after the clamping piece 123 releases the limiting of the battery, the battery with the welded tab can be pushed to move out the part below the placing rack 125, so as to avoid blocking when the battery is carried by the unloading carrying assembly 17. The push plate 127 is fixed with a top plate 128, one end surface of the top plate 128 is fixed with a clamping block 1281, and the cabinet 11 is provided with a driving piece 129 for driving the rotation of the rotating disc 122.

[0052] Through the arrangement of the top plate 128 and the clamping block 1281, it is convenient to act on the unlocking pusher 24 on the positioning and fitting mechanism 2 when the push plate 127 moves, and then act on the positioning and fitting piece 23, release the fixing of the tab in the positioning groove on the placing rack 125 after welding, and assist in moving the tab and the push plate 127 to move together when the push plate 127 pushes the battery to move, so as to avoid that only the lower part of the battery is stressed when the push plate 127 pushes the battery to move, resulting in uneven stress and tilting of the battery, and the tab does not move out of the placing rack 125 when tilting, and the tab and the battery are broken after welding. The driving piece 129 can realize the intermittent rotation of the rotating disc 122. As prior art, the working principle of this part is also prior art, and those skilled in the art can clearly know it, which will not be repeated here.

[0053] Specifically, the positioning and fitting mechanism 2 is installed on the placing rack 125 and includes a groove 21 and a circular groove 22 formed in the placing rack 125. The inner wall of the circular groove 22 is provided with a positioning and fitting piece 23. Each placing rack 125 is provided with a plurality of circular grooves 22 at both ends, and the number of circular grooves 22 is the same as that of the positioning and fitting pieces 23. The circular groove 22 is in communication with the positioning groove.

[0054] Through the arrangement of the positioning and fitting piece 23, when the tab is placed in the positioning groove of the placing rack 125 by the small material carrying and rotating assembly 15, the tab can be clamped and fixed, so as to avoid that the tab is loosened and separated from the placing rack 125 due to vibration or centrifugal force when the rotating disc 122 drives the clamping piece 123, the battery, the supporting frame 124, the placing rack 125 and the tab to rotate to the welding assembly 16 position, which affects the subsequent welding operation. When the small material carrying and rotating assembly 15 separates from the tab, a moving force is given to the tab, so that the lower end of the tab is in contact with the position to be welded with the battery, and the welding quality of the tab and the battery is ensured.

[0055] The unlocking pusher 24 is installed on the placing rack 125 and cooperates with the top plate 128 and the positioning fitting piece 23 respectively. Through the arrangement of the unlocking pusher 24, when the pushing plate 127 and the top plate 128 are moved by the air cylinder 126, the top plate 128 acts on the unlocking pusher 24, so that the positioning fitting piece 23 releases the clamping of the tab, thereby avoiding the hindering of the tab moving out of the positioning groove on the placing rack 125. When the pushing plate 127 just contacts the battery to move, the tab can be synchronously pushed to move, thereby avoiding the situation that the welding position is broken due to the force blocking of the inclined placing rack 125 bottom, and ensuring the complete discharging of the welded battery.

[0056] The fixing piece 25 is installed on the unlocking pusher 24 and cooperates with the clamping block 1281. Through the arrangement of the fixing piece 25, when the clamping block 1281 is moved by the top plate 128 to act on the unlocking pusher 24, the unlocking pusher 24 can be fixed therebetween. When the top plate 128 and the clamping block 1281 move back, the unlocking pusher 24 can be synchronously pulled back. After resetting, the fixing between them can be unlocked, without affecting the subsequent rotation of the rotating disc 122 to drive the clamping piece 123, the placing rack 125 and the positioning fitting mechanism 2 to rotate. At the same time, the pushing plate 127, the top plate 128 and the clamping block 1281 can still act on the unlocking pusher 24 in the positioning fitting mechanism 2 on the clamping piece 123 and the placing rack 125 which are rotated to the position.

[0057] The anti-sticking piece 26 is installed on the placing rack 125 and cooperates with the unlocking pusher 24. Through the arrangement of the anti-sticking piece 26, under the action of the unlocking pusher 24, the welding spatter solidified between the battery and the placing rack 125 can be avoided, so that the battery is not attached to the placing rack 125 under the action of the air bag 264 on the anti-sticking piece 26 when the unlocking pusher 24 acts on the positioning fitting piece 23 to release the clamping of the tab. At the same time, the welding spatter cannot solidify to connect the battery and the placing rack 125, so that the battery can be smoothly pushed out of the placing rack 125.

[0058] Embodiment 2, refer to Figures 3-16 This is the second embodiment of the application, which is based on the previous embodiment.

[0059] Specific, welding mechanism 1 further comprises a fixed on the top of the cabinet 11 feeding handling assembly 13, wrong material assembly 14, small material handling rotating assembly 15, welding assembly 16 and discharging handling assembly 17, one side of the cabinet 11 is provided with a vibration disc 18, feeding handling assembly 13 can feed and carry the battery to the clamping piece 123, then through the clamping piece 123 to push the battery to move, the position needing to be welded is placed below the positioning groove of the placing rack 125, through the setting of the vibration disc 18, the small material tab can be continuously transported to the wrong material assembly 14.

[0060] Through the setting of the small material handling rotating assembly 15, after the clamping piece 123 clamping the battery rotates to the position, the small material tab on the wrong material assembly 14 can be carried into the positioning groove on the placing rack 125, then the next tab is supplemented under the action of the vibration disc 18 in the vacancy position of the wrong material assembly 14, the small material handling rotating assembly 15 is divided into left and right handling rotating assemblies, which can carry two tabs at the same time, and the welding mode of the welding assembly 16 is laser welding.

[0061] Through the setting of the discharging handling assembly 17, after the battery and the tab are welded, rotate to the corresponding position, the clamping piece 123 releases the fixation of the battery, at the same time, the cylinder 126 pushes the push plate 127 and the top plate 128 to move, under the cooperation of the unlocking pusher 24, the battery is pushed out from below the placing rack 125, which can discharge the battery after welding, the feeding handling assembly 13, the wrong material assembly 14, the small material handling rotating assembly 15, the welding assembly 16, the discharging handling assembly 17 and the vibration disc 18 are all prior art, and the working principle and the like are all prior art, which can be clearly known by those skilled in the art, and will not be described here.

[0062] Specifically, the top of the cabinet 11 is fixed with an upper feeding line 19 and a lower feeding line 110, the upper feeding line 19 is located on one side of the feeding handling assembly 13, and the lower feeding line 110 is located on one side of the discharging handling assembly 17, the top of the cabinet 11 is fixed with a box 111 with a box door, the upper feeding line 19 can convey the welding to be welded to the feeding handling assembly 13, and the lower feeding line 110 can convey the battery after welding of the discharging handling assembly 17, without manual operation, which are all prior art, and the working principle and the like are all prior art, which can be clearly known by those skilled in the art, and will not be described here, and the box 111 is respectively provided with a control screen and operation buttons for setting the operation of the automatic welding device.

[0063] Specific, positioning fitting 23 includes sliding in the conical column 231 of the round groove 22, the spring 232 is fixed between the inner wall of the conical column 231 and the round groove 22, the conical column 231 rotates in one end, the rotating column 233 is fixed on the upper end of the rotating column 233, the rotating wheel 234 is fixed on the surface of the rotating wheel 234, and the rubber ring 235 is fixed on the surface of the rotating wheel 234.

[0064] The upper end of the conical column 231 and the rubber ring 235 are chamfered, and the design is set. When the tab is placed in the positioning groove of the placing rack 125, the conical column 231 can be pressed to move the conical column 231 and the rubber ring 235 together to the direction of the round groove 22, and at the same time, the spring 232 is compressed to generate elastic force. After the tab is placed in the positioning groove, the spring 232 is elastically returned, the conical column 231 acts on the rotating column 233 and the rotating wheel 234, the rubber ring 235 is elastically contacted with the tab, the tab is prevented from being separated from the positioning groove of the placing rack 125 during the rotating and welding operation process, and the rotating column 233 is rotatably connected with the inner wall of the conical column 231 through the bearing.

[0065] Specific, the conical column 231 rotates in the rotating rod 236, the sleeve pipe 237 is sleeved on the surface of the rotating rod 236, one end of the sleeve pipe 237 slides on the conical column 231, the other end of the sleeve pipe 237 is fixed on the inner wall of the round groove 22, the inner wall of the sleeve pipe 237 is provided with the driving groove 238, the rotating rod 236 is embedded with the ball 239 at one end in the inner cavity of the sleeve pipe 237, the ball 239 slides in the driving groove 238, the driving groove 238 is divided into three parts, the first and third parts will not make the rotating rod 236 rotate when the ball 239 moves in them, and the second part can make the rotating rod 236 rotate when the ball 239 moves in it, and the rotating rod 236 and the bevel gear 2311 are rotatably connected with the inner wall of the conical column 231 through the bearing.

[0066] The other end of the rotating rod 236 is fixed with the bevel gear 2310, the conical column 231 rotates in the bevel gear 2311, the bevel gear 2311 is engaged with the bevel gear 2310, the rotating column 233 is sleeved with the torsion spring 2312, and the torsion spring 2312 is fixed on the surface of the rotating column 233 and the inner wall of the bevel gear 2311 respectively. Through the setting of the torsion spring 2312, the conical column 231 and the rubber ring 235 can be moved during the process that the small material carrying and rotating assembly 15 places the tab in the positioning groove of the placing rack 125, and then drives the rotating rod 236 and the ball 239 to move. During the process that the tab is placed and moves downward to contact the rubber ring 235, the tab and the rubber ring 235 will not rotate relative to each other under the action of friction, so that the tab can move longitudinally on the rubber ring 235. With the movement of the extruded rubber ring 235, the ball 239 moves from the first part to the second part and then enters the third part of the driving groove 238, so that the rotating rod 236 rotates to drive the bevel gear 2310 to rotate, so that the bevel gear 2311 rotates.

[0067] When the rubber ring 235 is positioned by the limiting lug, the rotating wheel 234 and the rotating column 233 can be limited, and then under the rotation of the bevel gear 2311, the torsional spring 2312 is deformed to generate a torsional force. When the small material carrying rotating assembly 15 is separated from the lug, under the resetting action of the torsional spring 2312, the rotating column 233 and the rotating wheel 234 can rotate, so that the rubber ring 235 rotates to drive the lug to move, so that the lug is in contact with the battery welding position and no longer moves under the blocking action. At the same time, the deformation of the torsional spring 2312 is reduced, the driving force is reduced, the lug is tightly contacted with the battery welding position and positioned, and the accuracy and quality of subsequent welding are improved.

[0068] In the subsequent battery welding and discharging process, the rotating column 233, the rotating wheel 234 and the rubber ring 235 continue to rotate and stop under the resetting of the torsional spring 2312. When the rubber ring 235 is not blocked, the tapered column 231 is reset under the action of the spring 232. In this process, when the bevel gear 2311 rotates, the torsional spring 2312 and the rotating column 233 can be rotated together, and then the rotating wheel 234 and the rubber ring 235 are rotated until they stop.

[0069] Specifically, the tapered column 231 is provided with a trigger groove 2313 matched with the unlocking push rod 24, and the trigger groove 2313 is provided with an inclined surface. Through the arrangement of the trigger groove 2313, when the tapered column 231 is extruded and moved by the lug, the moving rod 244 will not block it and affect its movement. The arrangement of the inclined surface facilitates the movement of the moving rod 244 to drive the unlocking block 246 to move, so as to extrude the tapered column 231 to move, and then make the rubber ring 235 separate from the surface of the lug, so that the battery and the lug after welding are more smoothly pushed out. Under the resetting action of the torsional spring 2312, the rotating column 233, the rotating wheel 234 and the rubber ring 235 rotate until the torsional spring 2312 is reset. The tapered column 231 is fixed with a sliding block 2314, and the inner wall of the circular groove 22 is provided with a sliding groove 2315, and the sliding block 2314 slides in the sliding groove 2315. Through the sliding groove 2315 and the sliding block 2314, the tapered column 231 can be guided and limited, so that it will not rotate when moving.

[0070] Embodiment 3, refer to Figures 8-23 This is the third embodiment of the present application, which is based on the first two embodiments.

[0071] Specifically, the unlocking pusher 24 comprises a moving plate 241 sliding in the groove 21, the moving plate 241 is provided with a guide groove one 242 and a guide groove two 243 respectively, the placing rack 125 is slidably provided with a moving rod 244, one end of the moving rod 244 is fixedly provided with a guide column one 245, the guide column one 245 slides in the guide groove one 242, the other end surface of the moving rod 244 is fixedly provided with an unlocking block 246, the unlocking block 246 is matched with the trigger groove 2313, the moving rod 244 penetrates through the trigger groove 2313 and slides on the tapered column 231, the placing rack 125 is slidably provided with a push rod 247, one end of the push rod 247 is fixedly provided with a guide column two 248, the guide column two 248 slides in the guide groove two 243, the two ends of the push rod 247 away from the guide column two 248 are fixedly provided with a push block one 249 and a push block two 2410 respectively.

[0072] The guide groove one 242 and the guide groove two 243 are all divided into three parts, the first and third parts of the guide groove one 242 are unable to make the moving rod 244 move when the guide column one 245 moves in the first and third parts, the second part is able to make the moving rod 244 move when the guide column one 245 moves in the second part, the first and third parts of the guide groove two 243 are unable to make the push rod 247 move when the guide column two 248 moves in the first and third parts, the second part is able to make the push rod 247 move when the guide column two 248 moves in the second part.

[0073] The unlocking block 246 is provided with an inclined surface on one side, when the guide column one 245 moves from the first part to the second part and then enters the third part of the guide groove one 242, the guide column one 245 is moved to drive the moving rod 244 and the unlocking block 246 to move, so as to press the trigger groove 2313 to make the tapered column 231 move, so that the rubber ring 235 moves away from the contact and fixation of the tab, through the arrangement of the push block one 249 and the push block two 2410, when the guide column two 248 moves from the first part to the second part and then enters the third part of the guide groove two 243, the push rod 247, the push block one 249 and the push block two 2410 can be moved, and when the push plate 127 just contacts the battery to move, the tab can be synchronously pushed to move, so as to avoid the situation that the welding position is broken due to the force blocking of the inclined placing rack 125 bottom.

[0074] Specifically, the placing rack 125 is slidably provided with a driving plate 2411, the driving plate 2411 is provided with a guide hole 2412, one end of the moving plate 241 is fixedly provided with a guide column three 2413, the guide column three 2413 slides in the guide hole 2412, the driving plate 2411 is provided with a square hole 2414 for the movement of the driving plate 2411 on the placing rack 125, a spring two 2415 is fixedly arranged between the inner wall of the square hole 2414 and the surface of the placing rack 125, and one side of the driving plate 2411 is fixedly provided with a limiting block 2416.

[0075] The guide hole 2412 is divided into five parts, the first, third and fifth parts are the guide column three 2413 in the movement, the moving plate 241 will not move, the second and fourth parts are the guide column three 2413 in the movement, the moving plate 241 can move, when the welding is completed and rotated to the blanking station, when the cylinder 126 pushes the push plate 127 and the top plate 128 to move, the top plate 128 moves and contacts the driving plate 2411 to push it to move, the guide column three 2413 moves from the first part of the guide hole 2412 to the second part and enters the third part, and then the moving plate 241 moves and stops.

[0076] In this process, the guide column one 245 moves from the first part of the guide groove one 242 to the second part and enters the third part, and then the moving rod 244 drives the unlocking block 246 to move and stop, so as to drive the conical column 231 to move and make the rubber ring 235 separate from the lug, the guide column two 248 moves in the first part of the guide groove two 243 until the transition area of the second part, with the top plate 128 continuing to push the driving plate 2411 to move, the guide column three 2413 moves from the third part of the guide hole 2412 to the fourth part and enters the fifth part, and then the moving plate 241 moves and stops, in this process, the guide column two 248 moves from the first part of the guide groove two 243 to the second part and enters the third part, so that the push rod 247, the push block one 249 and the push block two 2410 move synchronously with the push plate 127 just contacting and pushing the battery to move, the guide column one 245 moves in the third part of the guide groove one 242.

[0077] By setting the spring two 2415, resistance is provided for the movement of the driving plate 2411, this resistance can meet the clamping block 1281 moving with the top plate 128 to act on the fixing piece 25, overcome the clamping on the fixing piece 25, at the same time, the spring two 2415 is compressed when the driving plate 2411 moves, providing a force for subsequent reset, by setting the limiting block 2416, when the driving plate 2411 moves and returns to reset, it will not move again when the clamping block 1281 continues to pull the fixing piece 25 to move, providing conditions for subsequent disconnection between the clamping block 1281 and the fixing piece 25.

[0078] Specifically, the connecting rod 251 is arranged on the driving plate 2411 and penetrates the driving plate 2411 and is in sliding connection with the driving plate 2411, one end of the connecting rod 251 is slidably provided with a buckle 252, the buckle 252 is matched with the clamping block 1281, the buckle 252 and the clamping block 1281 are both provided with inclined surfaces, through such an arrangement, when the clamping block 1281 moves with the top plate 128, the clamping block 1281 is in contact with the buckle 252, under the action of the spring 257 hindering the square block 256 and the connecting rod 251, the clamping block 1281 continues to move and can extrude the buckle 252 to move on one end of the connecting rod 251, at this time, the elastic sheet 253 is deformed, with the moving clamping block 1281 away from the buckle 252, under the action of the elastic sheet 253 deforming and resetting, the buckle 252 can be moved and reset, the clamping block 1281 is limited between the buckle 252 and the driving plate 2411, which facilitates the reset of the driving plate 2411 when the top plate 128 and the clamping block 1281 reset and move back.

[0079] The elastic sheet 253 is fixed between the inner wall of the buckle 252 and the surface of the connecting rod 251, the unlocking slot 254 is arranged on the buckle 252, the unlocking plate 255 is slidably arranged in the unlocking slot 254, one end of the unlocking plate 255 is fixed to the surface of the driving plate 2411, the other end of the connecting rod 251 is fixedly provided with the square block 256, the surface of the connecting rod 251 close to the square block 256 is sleeved with the spring 257, and the two ends of the spring 257 are fixed to the surface of the square block 256 and the surface of the driving plate 2411 respectively.

[0080] The unlocking slot 254 and the unlocking plate 255 are both provided with inclined surfaces and are matched with each other, when the top plate 128 and the clamping block 1281 reset and move back to pull back the driving plate 2411, after the limiting block 2416 is in contact with the surface of the placing rack 125, the driving plate 2411 cannot move any more, but the clamping block 1281 can still pull the buckle 252 to move, at this time, the connecting rod 251 and the square block 256 move together, and the spring 257 is compressed, with the movement of the buckle 252, the inclined surface on the unlocking plate 255 is in contact with the inclined surface on the unlocking slot 254, the unlocking plate 255 extrudes the buckle 252 to move on the connecting rod 251, the buckle 252 is unlocked to limit the clamping block 1281 and then releases the connection, under the action of the spring 257 rebounding, the square block 256 and the connecting rod 251 are reset.

[0081] Specifically, the anti-sticking piece 26 comprises a gas cavity 261 arranged in the placing rack 125, a piston 262 is slidably arranged in the inner wall of the gas cavity 261 and matched with the moving rod 244, a spring 263 is fixed between the surface of the piston 262 and the inner wall of the gas cavity 261, a gas bag 264 is fixedly arranged on the placing rack 125, the surface of the gas bag 264 is communicated with a connecting pipe 265, the connecting pipe 265 penetrates the placing rack 125 and is communicated with the gas cavity 261, one end of the moving rod 244 extends into the inner cavity of the gas cavity 261.

[0082] The piston 262 and the air cavity 261 are sealed, one end of the moving rod 244 is sealed with the inner wall of the placing rack 125, so as to avoid gas leakage. The connecting pipe 265 is a flexible pipe, and the air bag 264 is an elastic high-temperature-resistant smooth material. The working principle and the like are prior art, and those skilled in the art can clearly know that they are not described here. Through the setting of the air bag 264, the battery clamped and limited in the clamping piece 123 can be limited on the side of the welding position of the clamping piece 123, and the gap between the welding position and the placing rack 125 is filled, so that the welding slag cannot connect the battery and the placing rack 125 under the action of solidification.

[0083] When the moving rod 244 drives the unlocking block 246 to act on the conical column 231 after subsequent welding, the moving rod 244 moves and contacts the piston 262, so as to push the piston 262 to move. The gas in the air bag 264 is sucked into the air cavity 261 through the connecting pipe 265, so that the air bag 264 shrinks, the battery is not fixed to the placing rack 125, the battery is conveniently and smoothly pushed out of the placing rack 125, and the spring four 263 is compressed to provide a force for subsequent resetting of the piston 262. The placing rack 125 is provided with a communication hole on one side and is in communication with the air cavity 261. Through the setting of the communication hole, the piston 262 can smoothly move when being pushed by the moving rod 244.

[0084] In use, the automatic feeding and positioning are as follows: the feeding line 19 delivers the battery to the cabinet 11, the feeding and carrying assembly 13 sends the battery into the clamping piece 123 of the indexing disc, the vibration disc 18 delivers the tab to the wrong material assembly 14, the small material carrying and rotating assembly 15 carries the tab to the positioning groove of the placing rack 125, the tab extrudes the conical column 231, the spring one 232 is compressed, and the rubber ring 235 elastically abuts against the tab to realize preliminary positioning.

[0085] The tab and the battery are accurately attached: during the placement of the tab, the conical column 231 moves to drive the ball 239 on the rotating rod 236 to slide along the driving groove 238, drive the rotating rod 236 to rotate with the bevel gear 2310, and then make the bevel gear ring 2311 rotate and store the torsion of the torsional spring 2312. After the small material carrying and rotating assembly 15 is separated from the tab, the torsional spring 2312 is reset to drive the rubber ring 235 to rotate, push the tab to move downward and tightly attach to the battery welding position, and complete secondary positioning.

[0086] Welding and anti-sticking protection: the rotating disc 122 drives the battery and the tab to rotate to the welding assembly 16. When laser welding, the air bag 264 fills the gap between the battery and the placing rack 125 to avoid adhesion of welding slag. After welding is completed, the rotating disc 122 rotates to the discharging station.

[0087] Postoperative unlocking and discharging: the cylinder 126 pushes the push plate 127 and the top plate 128 to move, the top plate 128 drives the driving plate 2411 of the unlocking pusher 24 to move, the guide column three 2413 drives the moving plate 241 along the guide hole 2412, the guide column one 245 and the guide column two 248 drive the moving rod 244 and the push rod 247 respectively, the unlocking block 246 extrudes the conical column 231 to make the rubber ring 235 separate from the lug, the push block one 249 and the push block two 2410 synchronously push the lug; at the same time, the moving rod 244 pushes the piston 262, the air bag 264 deflates, the push plate 127 pushes the battery out of the placing rack 125, the discharging and carrying assembly 17 carries the battery to the discharging assembly line 110, and the process is completed.

[0088] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all of them should be covered in the scope of the claims of the present application.

Claims

1. An automatic welding device for battery production, characterized by: Including, The welding mechanism (1) includes a cabinet (11), a protractor assembly (12) is installed on the cabinet (11), the protractor assembly (12) includes a stand (121) fixed on the cabinet (11), a rotating disc (122) is rotatably arranged on the surface of the stand (121), a plurality of clamping pieces (123) are fixedly arranged on the rotating disc (122) in a circumferential array, a support frame (124) is fixedly arranged on the clamping piece (123), a placing rack (125) is fixedly arranged on the upper end of the support frame (124), a pneumatic cylinder (126) is fixedly arranged on the upper end of the stand (121), a push plate (127) is fixedly arranged on the output end of the pneumatic cylinder (126), a top plate (128) is fixedly arranged on the push plate (127), a clamping block (1281) is fixedly arranged on one end of the surface of the top plate (128), and a driving piece (129) for driving the rotating disc (122) to rotate is installed on the cabinet (11); and The positioning and fitting mechanism (2) is installed on the placing rack (125) and includes a groove (21) and a circular groove (22) formed in the placing rack (125), a positioning and fitting piece (23) is installed on the inner wall of the circular groove (22), an unlocking pusher (24) is installed on the placing rack (125) and cooperates with the top plate (128) and the positioning and fitting piece (23), a fixing piece (25) is installed on the unlocking pusher (24) and cooperates with the clamping block (1281), and an anti-sticking piece (26) is installed on the placing rack (125) and cooperates with the unlocking pusher (24); The positioning and fitting piece (23) includes a tapered column (231) sliding in the circular groove (22), a spring (232) is fixed between one end of the tapered column (231) and the inner wall of the circular groove (22), a rotating column (233) is rotatably arranged in one end of the tapered column (231), and a rotating wheel (234) is fixedly arranged on the upper end of the rotating column (233); a rubber ring (235) is fixedly arranged on the surface of the rotating wheel (234); A rotating rod (236) is rotatably arranged in the tapered column (231), a sleeve (237) is sleeved on the surface of the rotating rod (236), one end of the sleeve (237) slides on the tapered column (231), the other end of the sleeve (237) is fixed on the inner wall of the circular groove (22), a driving groove (238) is formed in the inner wall of the sleeve (237), a ball (239) is embedded in one end of the inner cavity of the sleeve (237), the ball (239) slides in the driving groove (238), a bevel gear (2310) is fixedly arranged on the other end of the rotating rod (236), a bevel gear ring (2311) is rotatably arranged in the tapered column (231) and meshes with the bevel gear (2310), and a torsion spring (2312) is sleeved on the surface of the rotating column (233) and fixedly arranged on the inner wall of the bevel gear ring (2311). The conical column (231) is provided with a trigger groove (2313) matched with the unlocking pusher (24), and the surface of the conical column (231) is fixed with a sliding block (2314).

2. The automatic welding device for battery production according to claim 1, wherein: The welding mechanism (1) further comprises a feeding and carrying assembly (13), a wrong material assembly (14), a small material carrying and rotating assembly (15), a welding assembly (16) and a discharging and carrying assembly (17) fixed to the top of the cabinet (11), and a vibration disc (18) is installed on one side of the cabinet (11).

3. The automatic welding device for battery production of claim 2, wherein: The top of the cabinet (11) is fixed with a feeding assembly line (19) and a discharging assembly line (110), respectively, the feeding assembly line (19) is located on one side of the feeding and carrying assembly (13), the discharging assembly line (110) is located on one side of the discharging and carrying assembly (17), and the top of the cabinet (11) is fixed with a box (111) with a box door.

4. The automatic welding device for battery production of claim 1, wherein: The unlocking pusher (24) comprises a moving plate (241) sliding in the groove body (21), the moving plate (241) is provided with a guide groove one (242) and a guide groove two (243), respectively, a moving rod (244) slides in the placing rack (125), one end of the moving rod (244) is fixed with a guide column one (245), the guide column one (245) slides in the guide groove one (242), the other end surface of the moving rod (244) is fixed with an unlocking block (246), the unlocking block (246) is matched with the trigger groove (2313), the moving rod (244) penetrates through the trigger groove (2313) and slides on the conical column (231), a push rod (247) slides in the placing rack (125), one end of the push rod (247) is fixed with a guide column two (248), the guide column two (248) slides in the guide groove two (243), and the other end of the push rod (247) is fixed with a push block one (249) and a push block two (2410), respectively.

5. The automatic welding device for battery production according to claim 4, wherein: The placing rack (125) is provided with a driving plate (2411) sliding thereon, the driving plate (2411) is provided with a guide hole (2412), one end of the moving plate (241) is fixed with a guide column three (2413), the guide column three (2413) slides in the guide hole (2412), the driving plate (2411) is provided with a square hole (2414) for moving on the placing rack (125), a spring two (2415) is fixed between the inner wall of the square hole (2414) and the surface of the placing rack (125), and a limiting block (2416) is fixed on one side of the driving plate (2411).

6. The automatic welding device for battery production of claim 5, wherein: The driving plate (2411) is slid with a connecting rod (251), one end of the connecting rod (251) is slid with a buckle (252), and the buckle (252) is matched with the clamping block (1281), the inner wall of the buckle (252) and the surface of the connecting rod (251) are fixed with the elastic sheet (253), the buckle (252) is provided with an unlocking slot (254), the inner wall of the unlocking slot (254) is slid with an unlocking plate (255), one end of the unlocking plate (255) is fixed to the surface of the driving plate (2411), the other end of the connecting rod (251) is fixed with a square block (256), the surface of the one end of the connecting rod (251) close to the square block (256) is sleeved with a spring three (257), and both ends of the spring three (257) are fixed to the surface of the square block (256) and the surface of the driving plate (2411).

7. The automatic welding device for battery production of claim 5, wherein: The anti-sticking piece (26) comprises an air cavity (261) opened in the placing rack (125), the air cavity (261) is slid with a piston (262), and the piston (262) is matched with the moving rod (244), the surface of the piston (262) and the inner wall of the air cavity (261) are fixed with a spring four (263), the placing rack (125) is fixed with an air bag (264), the surface of the air bag (264) is communicated with a connecting pipe (265), the connecting pipe (265) penetrates the placing rack (125) and is communicated with the air cavity (261), and one end of the moving rod (244) extends into the cavity of the air cavity (261).

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