A tab laser welding mechanism and a tab laser welding mechanism tablet press

Abstract

The application discloses a tab laser welding mechanism and a tab making machine, wherein the tab laser welding mechanism comprises a laser welding assembly, a first pressing block and a second pressing block which are arranged below the laser welding assembly in a liftable mode, the first pressing block and the second pressing block are respectively provided with a first through groove and a second through groove, the first pressing block and the second pressing block are detachably assembled, a containing cavity is formed in the first pressing block and the second pressing block, an exhaust pipe is connected to the side of the containing cavity, a leveling screw hole is arranged on the first pressing block, a jackscrew is threadedly connected in the leveling screw hole, and the bottom end of the jackscrew penetrates through the leveling screw hole and abuts against the second pressing block. The tab making machine comprises the above tab laser welding mechanism. The first pressing block and the second pressing block are combined to form a welding containing cavity, smoke and dust are timely exhausted through the exhaust pipe, the first pressing block and the second pressing block are adjusted through the jackscrew, the levelness of the second pressing block is ensured, the sealing between the pressing block and the tab is ensured, and the welding quality of the tab and the tab is ensured.

Description

TECHNICAL FIELD

[0001] The application relates to a battery manufacturing technology field, in particular to a tab laser welding mechanism and a tab manufacturing machine. BACKGROUND

[0002] In the manufacturing of lithium batteries, the pole piece is formed into an empty battery cell by winding or stacking and insulating between the pole pieces by a diaphragm, and then a precise amount of non-aqueous electrolyte solution is injected into the empty battery cell to complete the manufacturing of the lithium battery. The positive and negative poles of the lithium battery are led out by tabs. The tabs are welded and fixed on the pole piece by laser welding or ultrasonic welding. In ultrasonic welding, high-pressure and high-frequency sound waves are converted into mechanical vibrations of the tabs and the pole piece, and the temperature of the contact points between the tabs and the pole piece is raised to the melting point through the friction between the pole piece base material, the tabs and the welding head, so that the tabs and the pole piece are melted and fused together. However, during welding, the thin pole piece material is easily torn by high-frequency vibration, which affects the welding quality. The existing laser welding fuses the tabs and the pole piece together by laser radiation, avoiding the defect of tearing caused by mechanical vibration of the pole piece. However, the existing laser welding generates dust on the surface of the material, and lacks a structure for discharging the dust, so that the dust is easily bonded to the contact part of the tabs and the pole piece, affecting the welding quality.

[0003] The problems in the tab welding process in the prior art have become technical problems to be solved. SUMMARY

[0004] The purpose of the present application is to provide a tab laser welding mechanism and a tab manufacturing machine, which are formed by combining a first pressing block and a second pressing block to form a welding cavity, and discharging smoke and dust in time through an exhaust pipe. The first pressing block and the second pressing block are adjusted by a jack screw to adjust the levelness of the second pressing block, ensure the sealing between the pressing block and the pole piece, and ensure the welding quality of the tabs and the pole piece.

[0005] To solve the above technical problems, the technical solution provided by the present application is: a tab laser welding mechanism, comprising a laser welding assembly, a first pressing block and a second pressing block which are arranged below the laser welding assembly in a lifting manner, the first pressing block and the second pressing block are respectively provided with a first through slot and a second through slot through a laser route, the first pressing block and the second pressing block are detachably assembled, and a cavity is formed in the first pressing block and the second pressing block, an exhaust pipe is connected to the side of the cavity, a leveling screw hole is provided on the first pressing block, a jack screw is threadedly connected in the leveling screw hole, and the bottom end of the jack screw abuts against the second pressing block through the leveling screw hole.

[0006] The application adopts the technical scheme, when the polar piece passes below the laser welding assembly and the pole lug is transferred to the polar piece and contacts each other, the first pressing block and the second pressing block are lowered and pressed on the polar piece and cover the pole lug. The laser welding assembly emits laser, the laser is projected on the pole lug and the polar piece, and the pole lug is welded on the polar piece. The smoke and dust generated inside is discharged in time through the exhaust pipe in the cavity, the second pressing block can be leveled in time through the jack screw, so that when the second pressing block is pressed on the polar piece, the close contact between the second pressing block and the polar piece is maintained, the seal between the bottom of the cavity and the polar piece is ensured, the smoke and dust is concentrated and discharged, and the welding quality is ensured.

[0007] The pole lug laser welding mechanism, the bottom of the second pressing block is embedded with a pressing plate, the bottom surface of the pressing plate protrudes from the bottom surface of the second pressing block and is provided with a boss, and the boss is provided with a third through groove corresponding to the second through groove. After the first pressing block and the second pressing block are combined into one, the first through groove, the second through groove and the third through groove penetrate the first pressing block and the second pressing block in the direction of the laser passing route, so that the laser can pass through the first pressing block and the second pressing block to weld the pole lug.

[0008] The pole lug laser welding mechanism, the side of the first pressing block is provided with an air inlet hole communicating with the cavity. By arranging the air inlet hole, the cavity can be better communicated, so that when the exhaust pipe is connected to the air extractor and the air pump to extract the smoke and dust in the cavity, the air inlet hole can intake air, so as to assist the discharge of smoke and dust and achieve a certain cooling effect on the welding part.

[0009] The pole lug laser welding mechanism, the laser welding assembly comprises a laser generator, a lifting module, a mounting side plate and a lifting block, the lifting module is connected to the laser generator, the mounting side plate is provided with a lifting cylinder, the lifting cylinder is connected to the lifting block through the piston rod thereof, and the lifting block is fixedly connected to the first pressing block. The lifting module is used for controlling the vertical height of the laser generator, and the lifting cylinder controls the first pressing block and the second pressing block to be pressed on the polar piece through the lifting block.

[0010] The pole lug laser welding mechanism, the mounting side plate is provided with a vertical guide rail and a vertical sliding block, the surface of the lifting block is provided with a strip-shaped hole, the lifting block is connected to the vertical sliding block through a screw, the two side portions of the vertical sliding block are fixedly provided with a first adjusting seat and a first adjusting screw, the first adjusting screw is threadedly connected to the first adjusting seat and abuts against the side portion of the lifting block. The lifting block is slidably arranged on the vertical guide rail through the vertical sliding block, and when the lifting cylinder drives the lifting block to move up and down, the movement of the first pressing block and the second pressing block driven by the lifting block can be kept stable; the position of the lifting block fixed on the vertical sliding block can be adjusted through the screw fixed on the strip-shaped hole in a penetrating manner, and the end portion of the first adjusting screw abuts against the two side walls of the lifting block to fix the position of the lifting block, so that the positions of the first pressing block and the second pressing block are adjusted.

[0011] The lug laser welding mechanism, the laser welding assembly comprises a second adjusting seat and a second adjusting screw rod, the second adjusting seat and the second adjusting screw rod are located on both sides of the mounting side plate, and the second adjusting screw rod is threaded through the second adjusting seat and abuts against the side walls of the mounting side plate at the end portion.

[0012] The lug laser welding mechanism, the laser welding assembly is provided below the lug laser welding mechanism, the lug laser welding mechanism comprises a lug conveying assembly, the lug conveying assembly comprises a base, a jacking cylinder arranged on the base, and a supporting block connected with a piston rod of the jacking cylinder, the base is provided with a conveying roller for conveying the lug, the jacking cylinder drives the supporting block to ascend to contact the lug, and the second pressing block is lowered to press the lug in cooperation with the supporting block.

[0013] The lug laser welding mechanism further comprises a mounting seat, a lug conveying assembly, a lug cutting assembly and a feeding assembly, the lug conveying assembly, the lug cutting assembly and the feeding assembly are sequentially arranged on the mounting seat, the lug cutting assembly cuts the lug conveyed by the lug conveying assembly into pieces, and the feeding assembly conveys the cut lug below the laser welding assembly.

[0014] The lug laser welding mechanism, the feeding assembly comprises a correcting module, a transfer module and a moving clamp, the transfer module is arranged on the side of the correcting module and is used for moving the cut lug, and the moving clamp moves the cut lug below the laser welding assembly.

[0015] The application further provides another technical scheme, that is, a tablet machine comprising the lug laser welding mechanism in any one of the technical schemes.

[0016] When the lug is welded on the lug plate, the lug is conveyed through the conveying assembly, cut into a piece of a design size through the cutting assembly, corrected and shaped through the correcting module, sent to the moving clamp through the transfer module, clamped and moved to below the laser welding assembly through the moving clamp, contacted with the lug plate, pressed and clamped through the first pressing block and the second pressing block, welded through the laser generator, and smoke is discharged in time through the exhaust pipe during the welding process, so that the lug is welded on the lug plate.

[0017] The beneficial effects achieved by the present application are: the first pressing block and the second pressing block are combined, the first through groove and the second through groove inside form a cavity, when laser welding is performed on the tab and the pole piece, the smoke generated will stay in the cavity, the exhaust pipe is arranged on the side of the cavity for connecting the exhaust fan, and the smoke is timely extracted. When the first pressing block and the second pressing block are assembled, the two are connected through screws, a leveling screw hole is arranged on the first pressing block, a jackscrew is screwed in the leveling screw hole, the bottom of the jackscrew abuts against the second pressing block, through the action of the jackscrew, the levelness of the first pressing block can be timely adjusted, so that when the first pressing block is pressed on the pole piece, the surface of the pole piece is well fitted, and the smoke cannot leak out of the gap; and the levelness of the second pressing block can also be adjusted according to the horizontal angle of the pole piece, so that the second pressing block is adapted to pole pieces of different angles. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structure schematic diagram of the tab laser welding mechanism in the embodiment of the present application in specific implementation;

[0019] Figure 2 is a structure schematic diagram of the laser welding assembly in the embodiment of the present application;

[0020] Figure 3 is an assembly structure schematic diagram of the first pressing block and the second pressing block in the embodiment of the present application;

[0021] Figure 4 is Figure 3 is a cross-sectional structure schematic diagram of the assembly structure of the first pressing block and the second pressing block in the embodiment of the present application;

[0022] Figure 5 is an exploded mechanism schematic diagram of the assembly structure of the first pressing block and the second pressing block in the embodiment of the present application;

[0023] Figure 6 is a structure schematic diagram of the laser welding assembly and the pole piece conveying assembly in the embodiment of the present application;

[0024] Figure 7 is a structure schematic diagram of the pole piece conveying assembly in the embodiment of the present application;

[0025] Figure 8 is a structure schematic diagram of the tab conveying assembly in the embodiment of the present application;

[0026] Figure 9 is a structure schematic diagram of the tab conveying assembly in the embodiment of the present application from another angle;

[0027] Figure 10 is a structure schematic diagram of the tab cutting assembly in the embodiment of the present application;

[0028] Figure 11 is a structure schematic diagram of the tab cutting assembly in the embodiment of the present application from another angle;

[0029] Figure 12 is a structural schematic view of the feeding assembly of the embodiment of the present application arranged on the mounting seat;

[0030] Figure 13 is another angle of the structural schematic view of the feeding assembly of the embodiment of the present application arranged on the mounting seat;

[0031] Figure 14 is a structural schematic view of the returning module and the transferring module of the embodiment of the present application;

[0032] Figure 15 is another angle of the structural schematic view of the returning module and the transferring module of the embodiment of the present application;

[0033] Figure 16 is a structural schematic view of the returning module of the embodiment of the present application;

[0034] Figure 17 is a structural schematic view of the transferring module of the embodiment of the present application;

[0035] Figure 18 is another angle of the structural schematic view of the transferring module of the embodiment of the present application;

[0036] Figure 19 is a structural schematic view of the transferring clamp of the embodiment of the present application arranged on the mounting seat;

[0037] Figure 20 is another angle of the structural schematic view of the transferring clamp of the embodiment of the present application arranged on the mounting seat;

[0038] Figure 21 is a structural schematic view of the transferring clamp of the embodiment of the present application;

[0039] Figure 22 is a partial structural schematic view of the transferring clamp of the embodiment of the present application.

[0040] Explanation of reference signs: laser welding assembly 1, cavity 10, mounting seat 1a, first pressing block 11, first through groove 111, leveling screw hole 112, jackscrew 113, air inlet hole 114, second pressing block 12, second through groove 121, exhaust pipe 13, pressing plate 14, boss 141, third through groove 142, laser generator 15, lifting module 16, mounting side plate 17, lifting air cylinder 171, vertical guide rail 172, vertical sliding block 173, first adjusting seat 174, first adjusting screw 175, lifting block 18, strip-shaped hole 181, second adjusting seat 191, second adjusting screw 192, tab conveying assembly 2, base 21, jacking air cylinder 22, support block 23, conveying roller 24, waste groove 25, tab conveying assembly 3, wire reel rack 31, damper 311, wire reel 312, tab feeding motor 313, tab feeding disc 314, tab conveying motor 321, first feeding screw 322, first nut seat 323, conveying rack 324, feeding air cylinder 325, feeding pressing plate 326, first bearing seat 327, adhesive paper detector 33, lettering air cylinder 341, lettering pressure head 342, lettering pad 343, tab cutting assembly 4, fixing seat 41, support plate 411, cutting air cylinder 42, cutting pressing block 421, cutting knife 422, pressing air cylinder 43, lower pressing block 431, shooting unit 44, tab conveying channel 45, feeding assembly 5, alignment module 51, moving bottom plate 511, fixed vertical plate 512, upper alignment air cylinder 513, upper alignment block 5131, lower alignment air cylinder 514, lower alignment block 5141, alignment clamp 515, front and rear moving air cylinder 516, fixed block 517, limiting rod 518, transfer module 52, left and right adjusting air cylinder 521, front and rear adjusting air cylinder 522, transfer clamp 523, first connecting plate 524, second connecting plate 525, transfer clamp 53, transfer motor 531, second feeding screw 532, second nut seat 533, third connecting plate 534, vertical driving air cylinder 535, feeding clamp 536, tab detection device 537, second bearing seat 538, tab 6, tab 7. DETAILED DESCRIPTION

[0041] The application will be further described below in conjunction with the drawings and specific embodiments.

[0042] REFERENCE Figures 1 to 22As shown, the present application discloses a tab laser welding mechanism and a tab making machine thereof. Among them, the tab laser welding mechanism of the present application embodiment comprises a laser welding assembly 1, a first pressing block 11 and a second pressing block 12 which are arranged below the laser welding assembly 1 in a liftable manner, the first pressing block 11 and the second pressing block 12 are respectively provided with a first through slot 111 and a second through slot 121 through which the laser passes, the first pressing block 11 and the second pressing block 12 are detachably assembled, and a containing cavity 10 is formed inside the first pressing block 11 and the second pressing block 12, an exhaust pipe 13 is connected to the side of the containing cavity 10, a leveling screw hole 112 is arranged on the first pressing block 11, and a jackscrew 113 is threadedly connected in the leveling screw hole 112, and the bottom end of the jackscrew 113 penetrates through the leveling screw hole 112 and abuts against the second pressing block 12.

[0043] Further referring to Figures 2-5 As shown, the first pressing block 11 and the second pressing block 12 can be detachably connected by screws, and the second pressing block 12 is pressed on the tab below. After the first pressing block 11 and the second pressing block 12 are connected, the first through slot 111 and the second through slot 121 therebetween form the containing cavity 10 inside, and the laser generated by the laser welding assembly 1 passes through the containing cavity 10 to weld the tabs on the tab. During the welding process, the smoke generated is concentrated in the containing cavity 10, in order to avoid the smoke staying in the containing cavity and affecting the welding quality, an exhaust pipe 13 is connected to the side wall of the first pressing block 11 and / or the second pressing block 12, the exhaust pipe 13 is used to connect equipment such as an air extractor and an air pump to timely discharge the generated smoke and impurities. A leveling screw hole 112 is arranged on the first pressing block 11, and a jackscrew 113 is threadedly connected in the leveling screw hole 112, wherein the length of the jackscrew 113 is greater than the hole depth of the leveling screw hole 112, and the bottom end of the jackscrew 113 penetrates through the leveling screw hole 112 and abuts against the second pressing block 12. By abutting the second pressing block 12 with the jackscrew 113, the spacing between the second pressing block 12 and the first pressing block 11 is adjusted, and the levelness of the second pressing block 12 is adjusted, so that the second pressing block 12 can tightly fit on the tab 6. Among them, the number of leveling screw holes 112 and jackscrews 113 matches, and several are arranged on the first pressing block 11. The first pressing block 11 and the second pressing block 12 are connected by screws, and then the threads of each jackscrew 113 in the leveling screw hole 112 are adjusted, the length of the bottom end of the jackscrew 113 protruding out of the leveling screw hole 112 is adjusted, the jackscrew 113 abuts against the second pressing block 12, and after the levelness of the second pressing block 12 is adjusted, the first pressing block 11 and the second pressing block 12 are threadedly connected and locked and fixed.

[0044] Further, the second pressing block 12 is embedded with a pressing plate 14 at the bottom, the bottom surface of the pressing plate 14 protrudes from the bottom surface of the second pressing block 12 and is provided with a boss 141, and the boss 141 is provided with a third through slot 142 corresponding to the second through slot 121. Figure 4 and Figure 5As shown, the boss 14 is embedded in the bottom surface of the second pressing block 12, the second pressing block 12 contacts the tab 6, and the lug 7 is located in the third groove 142, so that the laser emitted by the laser welding assembly 1 can be aligned with the lug 7 after passing through the cavity 10, and the lug 7 and the tab 6 can be welded. Wherein, the first pressing block 11 is provided with a gas inlet hole 114 communicating with the cavity 10. The gas inlet hole 114 can enhance the flowability of the cavity 10. When the exhaust pipe 13 is connected to the exhaust fan and is exhausted, the smoke and dust remaining in the cavity 10 can be effectively exhausted, and the external air enters from the gas inlet hole 114, which can cool the lug and the tab after welding, accelerate the lug to be fixed on the tab, and improve the welding quality between the lug and the tab.

[0045] Referring to Figure 2 , Figure 6 As shown, the laser welding assembly 1 comprises a laser generator 15, a lifting module 16, a mounting side plate 17 and a lifting block 18. The lifting module 16 is connected to the laser generator 15. The mounting side plate 17 is provided with a lifting cylinder 171. The lifting cylinder 171 is connected to the lifting block 18 through its piston rod. The lifting block 18 is fixedly connected to the first pressing block 11. The lifting module 16 is used to adjust the vertical position of the laser generator 15 and the distance between the laser generator 15 and the tab 7. The lifting module 16 can be realized by a screw nut pair structure. The laser generator 15 is connected to the nut seat, and then the nut seat moves on the vertically arranged screw rod to control the height position of the laser generator 15. The lifting cylinder 171 is used to control the lifting movement of the lifting block 18. The lifting block 18 is connected to the first pressing block 11, so that the lifting movement of the lifting block 18 is driven by the lifting cylinder 171, and the first pressing block 11 and the second pressing block 12 are controlled to press on the tab 6 with the lug 7 and to rise after the lug is welded to leave the tab 6.

[0046] Specifically, the mounting side plate 17 is provided with a vertical guide rail 172 and a vertical sliding block 173, the lifting block 18 is provided with a strip-shaped hole 181 on the surface, and the vertical sliding block 173 is connected to the lifting block 18 through a screw, and the first adjusting seat 174 and the first adjusting screw 175 are fixed on the two sides of the vertical sliding block 173, and the first adjusting screw 175 is threadedly connected to the first adjusting seat 174, and the end of the first adjusting screw 175 abuts against the side wall of the lifting block 18. Through the cooperation of the vertical guide rail 172 and the vertical sliding block 173, the lifting block 18 moves stably when driven by the lifting cylinder 171 to move up and down; the strip-shaped hole 181 is arranged on the surface of the lifting block 18, and the screw is threadedly connected to the vertical sliding block 173 through the strip-shaped hole 181, wherein the first adjusting seat 174 and the first adjusting screw 175 are arranged on the two sides of the vertical sliding block 173, the first adjusting screw 175 is connected to the first adjusting seat 174, and the end of the first adjusting screw 175 penetrates through the first adjusting seat 174 and abuts against the side wall of the lifting block 18; the position of the lifting block 18 is limited by the abutting of the first adjusting screw 175 against the first adjusting seat 174, and then the screw is threadedly connected to the vertical sliding block 173 through the strip-shaped hole 181, so that the position adjustment of the lifting block 18 is realized. Through the arrangement of the strip-shaped hole 181, the first adjusting seat 14 and the first adjusting screw 17, the position of the lifting block 18 arranged on the vertical sliding block 173 can be adjusted, so that the position of the first pressing block 11 and the second pressing block 12 relative to the pole piece 6 is adjusted.

[0047] Further, the laser welding assembly 1 comprises a second adjusting seat 191 and a second adjusting screw 192, the second adjusting seat 191 and the second adjusting screw 192 are located on the two sides of the mounting side plate 17, and the second adjusting screw 192 is threadedly arranged in the second adjusting seat 191, and the end of the second adjusting screw 192 abuts against the side wall of the mounting side plate 17. Through the threadedly arranged second adjusting screw 192 in the second adjusting seat 191, the end of the second adjusting screw 192 abuts against the mounting side plate 17, and through the cooperation of the second adjusting screw 192 and the second adjusting seat 191, the position adjustment of the first mounting side plate 17 along the direction parallel to the conveying direction of the pole piece 6 is realized.

[0048] Further referring to Figure 7 As shown in the figure, the laser welding assembly 1 is provided below with a pole piece conveying assembly 2, the pole piece conveying assembly 2 comprises a base 21, a jacking cylinder 22 arranged on the base 21, a supporting block 23 connected to the piston rod of the jacking cylinder 22, and a conveying roller 24 arranged on the base 21 and used for conveying the pole piece 6, the jacking cylinder 22 drives the supporting block 23 to ascend and contact the pole piece 6, and the second pressing block 12 presses the pole piece 6 and cooperates with the supporting block 23 to press the pole piece 6 tightly. The base 21 is arranged on the mounting base 1a, the jacking cylinder 22 is used for driving the supporting block 23 to ascend, the supporting block 23 supports the bottom side of the pole piece 6 during the ascending process, and when the second pressing block 12 presses the pole piece 6, the supporting block 23 plays a role of cushioning the bottom of the pole piece 6 and clamping the pole piece 6 together with the second pressing block 12.

[0049] Referring to Figure 1 As shown in the figure, it also includes a mounting seat 1a, a tab conveying assembly 3, a tab cutting assembly 4 and a feeding assembly 5, the tab conveying assembly 3, the tab cutting assembly 4 and the feeding assembly 5 are sequentially arranged on the mounting seat 1a, the tab cutting assembly 4 cuts the tab 7 conveyed by the tab conveying assembly 3 into pieces, and the feeding assembly 5 conveys the cut tab to below the laser welding assembly 1.

[0050] As shown in the figure, Figure 8 , 9 The tab conveying assembly 3 includes a wire reel holder 31, a damper 311 and a wire reel 312 are arranged on the wire reel holder 31, the tab 7 is wound on the wire reel 312, the damper 311 is connected with the wire reel 312, a tab feeding motor 313 and a tab feeding disc 314 are arranged on the wire reel holder 31, and the tab feeding motor 313 is connected with the tab feeding disc 314. One end of the tab 7 is fixed to the wire reel 312, the other end is output from the wire reel 312, wound on the tab feeding disc 314, the tab feeding motor 313 drives the tab feeding disc 314 to rotate, pulls the tab 7 of the wire reel 312, so that the tab 7 is conveyed towards the tab feeding disc 314.

[0051] The mounting seat 1a is provided with a tab conveying motor 321, a first feeding screw 322, a first nut seat 323 and a first bearing seat 327, the tab conveying motor 321 is connected with the first feeding screw 322, the first nut seat 323 is threadedly connected on the first feeding screw 322, the other end of the first feeding screw 322 is rotatably connected on the first bearing seat 327, the first nut seat 323 is provided with a conveying frame 324, the conveying frame 324 is provided with a feeding cylinder 325, the piston rod of the feeding cylinder 325 passes through a connecting feeding pressing plate 326, the feeding pressing plate 326 clamps the tab 7 when descending in cooperation with the conveying frame 324, and the tab 7 is conveyed forward by driving the first nut seat 323 to move linearly on the first feeding screw 322 by the tab conveying motor 321.

[0052] The mounting seat 1a is further provided with a gum paper detector 33 for detecting the insulation of the gum paper pasted on the tab 7. In the implementation, the insulating gum paper pasted on the tab 7 passes through the gum paper detector 33 in the process of conveying the tab 7 forward, the gum paper detector 33 contacts the upper and lower two side surfaces of the gum paper through the contacts, inputs an electrical signal, and judges whether the two power contacts of the gum paper detector 33 can still be conducted after being isolated. When the contacts located on the upper and lower two side surfaces of the gum paper are not conducted, it indicates that the insulating performance of the gum paper is good.

[0053] The mounting seat 1a is provided with a character carving cylinder 341, the character carving cylinder 341 is connected with a character carving pressing head 342, a character carving pad 343 is arranged below the character carving pressing head 342, the tab 7 passes between the character carving pressing head 342 and the character carving pad 343, the character carving cylinder 341 can be driven to work according to actual needs, and characters can be carved on the tab 7.

[0054] Referring to Figure 10 and 11 As shown in the drawings, the tab cutting assembly 4 includes a fixed seat 41, a support plate 411 provided on the fixed seat 41, a cutting cylinder 42 provided on the top of the support plate 411, a cutting pressing block 421 connected with the cutting cylinder 42, and a cutting knife 422 provided on the cutting pressing block 421. A pressing cylinder 43 is also provided on the support plate 411, and the pressing cylinder 43 is connected with a lower pressing block 431. The fixed seat 41 is provided with a tab conveying channel 45. The pressing cylinder 43 and the cutting cylinder 42 jointly act, and the lower pressing block 431 and the cutting pressing block 421 are simultaneously pressed down. The lower pressing block 431 extends into the tab conveying channel 45 to press the tab 7 when it is pressed down, and the cutting pressing block 421 cuts off the tab 7 by the cutting knife 422 during the pressing process. A shooting unit 44 is provided on the support plate 411 for shooting the tab 7 located below the cutting knife 422. After the tab image information shot by the shooting unit 44 is obtained by the film making machine, the cutting cylinder 42 is controlled to act to cut off the tab. The shooting unit 44 is used to feed back the image information to the film making machine to determine the cutting position of the tab.

[0055] Referring to Figure 12 and 13 As shown in the drawings, the feeding assembly 5 includes a correcting module 51, a transfer module 52, and a transfer clamp 53. The transfer module 52 is arranged on the side of the correcting module 51 and is used to move the cut tab 7. The transfer clamp 53 moves the cut tab 7 to below the laser welding assembly 1.

[0056] The tab 7 is conveyed to the feeding assembly 5, and the cut tab is first corrected and shaped by the correcting module 51, then clamped and moved by the transfer module 52 to the transfer clamp 53. The transfer clamp 53 clamps the tab 7 and moves it to the tab 6 on the tab conveying assembly 2. After being pressed by the first pressing block 11 and the second pressing block 12, the laser generator 15 is started to perform laser welding.

[0057] Referring to Figures 12-22 As shown in the drawings, the feeding assembly 5 includes a correcting module 51, a transfer module 52, and a transfer clamp 53. The correcting module 51, the transfer module 52, and the transfer clamp 53 are movably arranged on the mounting seat 1a.

[0058] As Figure 16As shown, the correcting module 51 includes a moving base plate 511, a fixed vertical plate 512 arranged on the moving base plate 511, a lower correcting cylinder 514 arranged on the moving base plate 511, an upper correcting cylinder 513 arranged on the top of the fixed vertical plate 512, the upper correcting cylinder 513 vertically opposite to the lower correcting cylinder 514, the upper correcting cylinder 513 connected with an upper correcting block 5131, the lower correcting cylinder 514 connected with a lower correcting block 5141, the upper correcting block 5131 and the lower correcting block 5141 driven by the upper correcting cylinder 513 and the lower correcting cylinder 514 respectively to make the upper correcting block 5131 and the lower correcting block 5141 cooperate to position the tab 7 in the gap between the upper correcting block 5131 and the lower correcting block 5141, for example, a groove can be arranged on the lower correcting block 5141 to accommodate the cut tab 7. A correcting clamp 515 is arranged on the side of the fixed vertical plate 512, which is used to correct the tab 7, and then the tab moves to between the upper correcting block 5131 and the lower correcting block 5141, preferably a groove is arranged on the lower correcting block 5141 for placing and correcting the tab 7. A front and rear moving cylinder 516 is arranged on the moving base plate 511, a fixed block 517 is fixedly arranged on the mounting seat 1a, the cylinder body of the front and rear moving cylinder 516 is fixed on the moving base plate 511, and the piston rod is fixedly connected with the fixed block 517, the piston rod is driven to extend and retract by the front and rear moving cylinder 516, the position of the piston rod is fixed, so that the cylinder body of the front and rear moving cylinder 516 drives the moving base plate 511 to move forward and backward on the mounting seat 1a. A limiting rod 518 is fixedly arranged on the mounting seat 1a, which is used to abut against the front and rear moving cylinder 516 to limit the position of the front and rear moving cylinder 516, and further limit the position of the moving base plate 511 moving rearward on the mounting seat 1a. The moving base plate 511 is driven by the front and rear moving cylinder 516 to move forward and backward along the conveying direction of the tab 7, so that the upper correcting block 5131 and the lower correcting block 5141 cooperate to clamp but not tightly clamp the tab 7, and the front and rear movement corrects the tab.

[0059] Referring to Figure 17 and 18 As shown, the transferring module 52 includes a left and right adjusting cylinder 521, a front and rear adjusting cylinder 522, and a transferring clamp 523, the front and rear adjusting cylinder 522 is connected with the left and right adjusting cylinder 521 through a first connecting plate 524, and the transferring clamp 523 is connected with the front and rear adjusting cylinder 522 through a second connecting plate 525. After the tab 7 is corrected, the left and right adjusting cylinder 521 and the front and rear adjusting cylinder 522 cooperate to move to control the position of the transferring clamp 523 to clamp the tab and move the tab to the position of the transferring clamp 53. The transferring clamp 523 can adopt a pneumatic finger to clamp the tab.

[0060] Referring to Figures 19-22As shown, the transfer clamp 53 comprises a transfer motor 531, a second feeding screw rod 532 connected with the transfer motor 531, a second nut seat 533 screwed on the second feeding screw rod 532, a vertical driving cylinder 535 connected on the second nut seat 533 through a third connecting plate 534, and a feeding clamp 536 connected with the vertical driving cylinder 535. The transfer motor 531 is arranged on the mounting base 1a, the other end of the second feeding screw rod 532 is rotatably connected on a second bearing seat 538 through a bearing, and the second bearing seat 538 is fixed on the mounting base 1a. The feeding clamp 536 can also adopt a pneumatic finger for clamping the tab. After the feeding clamp 536 clamps the tab 7 transferred by the transfer clamp 523, the feeding clamp 536 is driven by the transfer motor 531 to move forward, so as to transfer the tab 7 to the pole piece 6 on the pole piece transferring assembly 2. A pole piece detecting device 537 is arranged on the front side of the third connecting plate 534, which can be composed of a U-shaped fixed plate and two opposite photoelectric sensors arranged at the opening of the U-shaped plate. When the feeding clamp 536 moves the tab 7 above the pole piece 6, the U-shaped opening is positioned on the upper and lower surfaces of the pole piece 6, for detecting the position of the pole piece 6, and feeding back to the sheet making machine, so as to control the position of the pole piece 6 or the position of the feeding clamp 536.

[0061] In summary, the present application has been described in the specification and drawings, and actual samples have been made and tested for many times. From the effect of the use test, it can be proved that the present application can achieve the intended purpose, and the practical value is self-evident. The above examples are only used to facilitate the illustration of the present application, and do not limit the present application in any form. Any person with ordinary knowledge in the art can make equivalent embodiments by making partial changes or modifications within the scope of the technical features disclosed in the present application, without departing from the technical features of the present application, and the equivalent embodiments still belong to the scope of the technical features of the present application.

Claims

1. A laser welding mechanism for electrodes, characterized in that: The assembly includes a laser welding component (1), a first pressure block (11) and a second pressure block (12) which are vertically and vertically disposed below the laser welding component (1). The first pressure block (11) and the second pressure block (12) are respectively provided with a first through groove (111) and a second through groove (121) through which the laser path passes. The first pressure block (11) and the second pressure block (12) are detachably assembled. A cavity (10) is formed inside the first pressure block (11) and the second pressure block (12). An exhaust pipe (13) is connected to the side of the cavity (10). The first pressure block (11) is provided with a leveling screw hole (112). A set screw (113) is threaded in the leveling screw hole (112). The bottom end of the set screw (113) passes through the leveling screw hole (112) and abuts against the second pressure block (12). The laser welding assembly (1) includes a mounting side plate (17) and a lifting block (18). The mounting side plate (17) is provided with a lifting cylinder (171). The lifting cylinder (171) is connected to the lifting block (18) through its piston rod. The lifting block (18) is fixedly connected to the first pressure block (11). The mounting side plate (17) is provided with a vertical guide rail (172) and a vertical slider (173). The lifting block (18) is provided with a strip hole (181) on its surface and is connected to the vertical slider (173) by screws. The two sides of the vertical slider (173) are fixed with a first adjusting seat (174) and a first adjusting screw (175). The first adjusting screw (175) is threaded to the first adjusting seat (174) and its end abuts against the side of the lifting block (18). The laser welding assembly (1) includes a second adjusting seat (191) and a second adjusting screw (192). The second adjusting seat (191) and the second adjusting screw (192) are located on both sides of the mounting side plate (17). The second adjusting screw (192) is threaded through the second adjusting seat (191) and its end abuts against the side wall of the mounting side plate (17). Below the laser welding assembly (1) is an electrode conveying assembly (2), which includes a support block (23). The second pressing block (12) cooperates with the support block (23) to press the electrode. The mechanism also includes a feeding assembly (5), which conveys the cut electrode tabs to the area below the laser welding assembly (1). The feeding assembly (5) includes a straightening module (51), a transfer module (52), and a transfer fixture (53). The straightening module (51) is used to straighten and shape the cut electrode tab (7). The transfer module (52) is located on the side of the straightening module (51). The transfer module (52) is used to clamp the electrode tab and move it to the transfer fixture (53). The transfer fixture (53) moves the electrode tab (7) to below the laser welding assembly (1). The correction module (51) includes a movable base plate (511) and a fixed upright plate (512) mounted on the movable base plate (511). A lower correction cylinder (514) is mounted on the movable base plate (511), and an upper correction cylinder (513) is mounted on the top of the fixed upright plate (512). The upper correction cylinder (513) and the lower correction cylinder (514) are vertically opposite each other. The upper correction cylinder (513) is connected to an upper correction block (514). 131), the lower aligning cylinder (514) is connected to the lower aligning block (5141). The upper aligning cylinder (513) and the lower aligning cylinder (514) drive the upper aligning block (5131) and the lower aligning block (5141) to move respectively, so that the upper aligning block (5131) and the lower aligning block (5141) cooperate, so that the electrode is positioned in the gap between the upper aligning block (5131) and the lower aligning block (5141).

2. The electrode laser welding mechanism according to claim 1, characterized in that: The bottom of the second pressure block (12) is fitted with a pressure plate (14), and the bottom surface of the pressure plate (14) protrudes from the bottom surface of the second pressure block (12) and is provided with a boss (141). The boss (141) is provided with a third through groove (142) corresponding to the second through groove (121).

3. The electrode laser welding mechanism according to claim 1, characterized in that: The first pressure block (11) has an air inlet (114) on its side that connects to the cavity (10).

4. The electrode laser welding mechanism according to claim 1, characterized in that: The laser welding assembly (1) includes a laser generator (15) and a lifting module (16), wherein the lifting module (16) is connected to the laser generator (15).

5. The electrode laser welding mechanism according to claim 1, characterized in that: The electrode conveying assembly (2) includes a base (21), a lifting cylinder (22) disposed on the base (21), and a support block (23) connected to the piston rod of the lifting cylinder (22). The base (21) is provided with a conveying roller (24) for conveying the electrode (6). The lifting cylinder (22) drives the support block (23) to rise and contact the electrode (6). The second pressing block (12) presses down and cooperates with the support block (23) to press the electrode (6).

6. The electrode laser welding mechanism according to claim 1, characterized in that: It also includes a mounting base (1a), an electrode conveying assembly (3) and an electrode cutting assembly (4). The electrode conveying assembly (3), the electrode cutting assembly (4) and the feeding assembly (5) are sequentially arranged on the mounting base (1a). The electrode cutting assembly (4) cuts the electrode (7) conveyed by the electrode conveying assembly (3) into pieces.

7. A film-making machine, characterized in that: Includes the electrode laser welding mechanism described in any one of claims 1-6 above.

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