CN112490486A

CN112490486A - Battery cell tab and cover plate welding system

Info

Publication number: CN112490486A
Application number: CN202011487711.8A
Authority: CN
Inventors: 吴轩; 冉昌林; 曹卫斌; 蔡汉钢; 李鹏
Original assignee: Wuhan Yifi Laser Intelligent Equipment Co ltd
Current assignee: Wuhan Yifi Laser Intelligent Equipment Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-03-12

Abstract

The invention relates to the technical field of battery production, and discloses a battery cell lug and cover plate welding system which comprises a cover plate feeding station, a cover plate transferring station, a battery cell feeding station, a welding station, a cleaning station, a rubberizing station, a rolling station and a blanking station which are sequentially arranged along a conveying mechanism; the conveying mechanism is loaded with a tool clamp, the tool clamp comprises a supporting plate, the upper surface of the supporting plate is correspondingly provided with two electric core fixing positions, and a cover plate fixing position is arranged between the opposite ends of the two electric core fixing positions on the upper surface of the supporting plate; a cover plate storage position is arranged on one side of the supporting plate; the cover plate transferring station is provided with a cover plate transferring mechanism. According to the welding system for the battery cell lug and the cover plate, provided by the invention, each process is conveniently and accurately controlled so as to realize accurate control on the whole welding process, the production efficiency is favorably improved, and the product percent of pass is ensured; and the tool clamp is arranged to fix the battery cell and the cover plate, so that the welding process can be smoothly carried out, and the welding effect is ensured.

Description

Battery cell tab and cover plate welding system

Technical Field

The invention relates to the technical field of battery production, in particular to a system for welding a lug and a cover plate of a battery core.

Background

In today where energy competition is becoming more intense, it has become a common consensus to find products that replace petroleum energy. The rapid development of the battery industry is a trend, which has a wide application in industrial production, life and other aspects, and city electric buses are quietly started. The battery core is an important component unit of the battery, and in the manufacturing and assembling process of the battery, the tab of the battery core is mechanically connected with the cover plate in a welding mode so as to realize the function of current conduction. The welding process of the battery cover plate and the battery core lug is quite important. Whether the battery cover plate and the battery core tab are welded firmly and reliably can directly influence the service life of the battery.

At present, battery manufacturing enterprises mostly adopt manual single-station welding of positive and negative electrode lugs, namely, a plurality of procedures of welding of the battery core lugs are completed on one station, and more manual work is needed. The mode of welding the positive and negative electrode lugs by the manual single station often results in poor positioning precision of the cover plate and the lugs, lower production efficiency and lower product percent of pass, and can not meet the requirement of mass production of batteries of enterprises.

Disclosure of Invention

The invention provides a battery cell lug and cover plate welding system which is used for solving the problems of poor positioning accuracy of a cover plate and a lug, lower production efficiency and lower product percent of pass of the existing battery cell lug welding process.

The invention provides a battery cell lug and cover plate welding system which comprises a conveying mechanism, and a cover plate feeding station, a cover plate transferring station, a battery cell feeding station, a welding station, a cleaning station, a rubberizing station, a rolling station and a blanking station which are sequentially arranged along the conveying mechanism; the conveying mechanism is loaded with a tool clamp, the tool clamp comprises a supporting plate, the upper surface of the supporting plate is correspondingly provided with two electric core fixing positions, and a cover plate fixing position is arranged between the opposite ends of the two electric core fixing positions on the upper surface of the supporting plate; a cover plate storage position is arranged on one side of the supporting plate; the cover plate transfer station is provided with a cover plate transfer mechanism, and the cover plate transfer mechanism is used for transferring the cover plate from the cover plate storage position to the cover plate fixing position; the battery cell loading station is provided with a battery cell loading mechanism; the welding station is provided with a welding mechanism and a pressing mechanism; the cleaning station is provided with a cleaning mechanism; the rubberizing station is provided with a rubberizing mechanism; and the rolling station is provided with a rolling mechanism.

According to the welding system for the battery cell lug and the cover plate, the plurality of stations are arranged to divide the welding process of the battery cell lug and the cover plate into a plurality of working procedures, the plurality of working procedures are sequentially carried out along the conveying mechanism, the division of the working procedures is reasonable and orderly, each working procedure is conveniently and accurately controlled to realize accurate control on the whole welding process, the production efficiency is improved, and the product percent of pass is ensured; and set up frock clamp and set up apron fixed position between two electric core fixed positions that correspond, can be convenient for weld the electric core utmost point ear on both sides to the apron, can be convenient for going on smoothly of welding process through fixing electric core and apron, guarantee the welding effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is an overall schematic view of a cell tab and cover plate welding system provided by the present invention;

FIG. 2 is a schematic front view of a tooling fixture provided by the present invention;

FIG. 3 is a schematic view of the back of the tooling fixture provided by the present invention;

FIG. 4 is a schematic view of a push structure provided by the present invention;

fig. 5 is an overall schematic diagram of a cell loading mechanism provided by the present invention;

FIG. 6 is one of the schematic structural views of a jaw assembly provided by the present invention;

FIG. 7 is a second schematic view of the jaw assembly of the present invention;

FIG. 8 is a schematic structural view of a pressing mechanism provided in the present invention;

FIG. 9 is a second schematic structural view of a pressing mechanism provided in the present invention;

FIG. 10 is a schematic view of a first dust excluding hood provided by the present invention;

FIG. 11 is a schematic view of a cleaning mechanism according to the present invention;

FIG. 12 is a second schematic structural view of a cleaning mechanism provided in the present invention;

FIG. 13 is an overall schematic view of the taping mechanism provided by the present invention;

FIG. 14 is a schematic front view of a taping mechanism provided in accordance with the present invention;

FIG. 15 is a schematic view of the arrangement of the cutting mechanism provided by the present invention;

FIG. 16 is a schematic side view of the taping mechanism provided in accordance with the present invention;

fig. 17 is a schematic structural diagram of a rolling mechanism provided by the present invention.

Reference numerals:

1. a tooling fixture; 2. a pushing structure; 3. a cover plate transfer mechanism; 4. a battery cell feeding mechanism; 5. a welding mechanism; 6. a hold-down mechanism; 7. a cleaning mechanism; 8. a gluing mechanism; 9. a rolling mechanism; 10. a code scanning mechanism; 11. a blanking station; 12. a manipulator; 13. a turntable; 14. a cabinet;

101. a support plate; 102. fixing and positioning the battery core; 103. fixing the cover plate; 104. a movable limiting part; 105. a cover plate storage position; 106. a wedge block; 107. a first elastic member; 108. a base; 109. a station induction sheet; 201. a push cylinder; 202. a push plate; 203. a pin shaft; 204. a ball bearing;

401. a first horizontal moving structure; 402. a second horizontally moving structure; 403. a vertically moving structure; 404. a swing cylinder; 405. a clamping jaw cylinder; 406. a claw body; 407. mounting a plate; 408. a fixing plate; 409. a centering cylinder; 410. a buffer plate; 411. a second elastic member; 412. a cushion pad; 413. pushing the plate;

601. pressing the support; 602. a shutter; 603. a rib plate; 604. fixing the bottom plate; 605 and 709, driving cylinders; 606 and 710, a spacing assembly; 607. a first dust hood; 6071. a first dust suction port; 608. a pressure head; 609. a first dust removal bracket; 701. cleaning the support; 702. a fixed mount; 703. a guide bar; 704. a second dust hood; 705. a second dust removal bracket; 706. a swing structure; 707. a connecting member; 708. a brush;

81. an adhesive tape roll; 82. an adhesive tape; 83. a limiting component; 8101. a support backing plate; 8102. a movable tensioning member; 8103. a fixed pulley; 8104. a chute; 8105. fixing the bearing; 8106. a balancing weight; 8107. a laser sensor; 8201. pressing a plate; 8202. a top block; 8301. a leasing jaw; 8302. a traction belt displacement structure; 8401. a suction cup; 8402. a first displacement assembly; 8403. a support frame; 8404. a second displacement assembly; 8405. a connecting plate; 8501. cutting the displacement structure; 8502. a blade;

901. rolling the support; 902. a cantilever plate; 903. a first mounting plate; 904. a second mounting plate; 905. a third mounting plate; 906. a first displacement structure; 907. a vertical displacement structure; 908. a limiting component; 909. a guide shaft; 910. a second displacement structure; 911. a roller; 912. and a third elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The cell tab and cover plate welding system of the present invention is described below in conjunction with fig. 1-17.

Referring to fig. 1, the embodiment provides a cell tab and cover plate welding system, and the welding system includes a conveying mechanism, and a cover plate feeding station, a cover plate transferring station, a cell feeding station, a welding station, a cleaning station, a rubberizing station, a rolling station, and a discharging station 11, which are sequentially arranged along the conveying mechanism. Referring to fig. 2, a tooling fixture 1 is carried on the conveying mechanism, the tooling fixture 1 includes a support plate 101, and two battery cell fixing positions 102 are correspondingly arranged on an upper surface of the support plate 101. The ends of the two battery cell fixing positions 102 are correspondingly arranged. The upper surface of the support plate 101 is provided with a cover plate fixing station 103 between opposite ends of the two cell fixing stations 102. Namely, the cover plate fixing station 103 is located between the two cell fixing stations 102. The cell fixing station 102 is used for placing and fixing a cell. The cover plate fixing position 103 is used for placing a fixing cover plate. The tabs of the battery cells on the two battery cell fixing positions 102 can be respectively placed on the corresponding tab positions on the cover plate for welding connection.

A cover storage 105 is provided at one side of the support plate 101. When the cover plate storage position 105 is arranged for loading the cover plate, the cover plate can be loaded to the cover plate storage position 105, and then the cover plate is transferred from the cover plate storage position 105 to the cover plate fixing position 103 through the cover plate transfer mechanism 3. A cover plate storage position 105 is arranged, and firstly, the cover plate storage position 105 is positioned at the edge part of the support plate 101, so that loading is facilitated; secondly, form independent process with the apron material loading, can set up apron material loading process alone, be favorable to improving whole welding efficiency, productivity gain.

The cover plate loading station is used for placing cover plate loading on the cover plate storage position 105. The cover plate transfer station is provided with a cover plate transfer mechanism 3, and the cover plate transfer mechanism 3 is used for transferring the cover plate from the cover plate storage position 105 to the cover plate fixing position 103. The battery cell feeding station is provided with a battery cell feeding mechanism 4; the cell feeding mechanism 4 is configured to place a cell charge onto the cell fixing station 102. The welding station is provided with a welding mechanism 5 and a pressing mechanism 6; and the welding mechanism 5 is used for welding the battery core lug and the cover plate. The pressing mechanism 6 is used for playing an auxiliary role of pressing a welding part in the welding process of the battery core lug and the cover plate. The cleaning station is provided with a cleaning mechanism 7; the cleaning mechanism 7 is used for cleaning the surface of the welded battery core. The rubberizing station is provided with a rubberizing mechanism 8; and the rubberizing mechanism 8 is used for rubberizing the welded electric core tab part. The rolling station is provided with a rolling mechanism 9. And the rolling mechanism 9 is used for rolling and flattening the tab part of the battery cell after being glued. The blanking station 11 is used for blanking the welded battery cell and the welded cover plate.

According to the welding system for the battery cell lug and the cover plate, the plurality of stations are arranged to divide the welding process of the battery cell lug and the cover plate into a plurality of working procedures, the plurality of working procedures are sequentially carried out along the conveying mechanism, the working procedures are divided reasonably and orderly, each working procedure is conveniently and accurately controlled to realize accurate control on the whole welding process, the production efficiency is improved, and the product percent of pass is ensured; and set up frock clamp and set up apron fixed position between two electric core fixed positions that correspond, can be convenient for weld the electric core utmost point ear on both sides to the apron, can be convenient for going on smoothly of welding process through fixing electric core and apron, guarantee the welding effect.

Further, referring to fig. 3, a station sensing piece 109 is provided on the fixture. The induction sheet matched with the station induction sheet 109 can be arranged at each station, when the clamp moves to a certain station, the station can identify and judge that the clamp moves in place, and then corresponding operation of the station is started. The cover plate transfer mechanism 3 can comprise a displacement structure and a sucker component connected with the displacement structure; the suction transfer of the cover plate can be realized by utilizing the negative pressure sucker. The cover plate may be transferred by a robot structure or the like, and is not particularly limited.

On the basis of the above embodiment, further referring to fig. 2, two sides of the battery cell fixing position 102 are respectively provided with a limiting member, and the limiting member on at least one side is set as a movable limiting member 104 with an adjustable position; the two sides of the battery cell fixing position 102 are respectively provided with a limiting part. The limiting parts are arranged on two adjacent side edges of the battery cell fixing position 102 and the cover plate fixing position 103 and used for clamping and fixing the battery cells on two sides. The limiting member can be a baffle plate and the like. And the position of the limiting part on at least one side is set as a movable limiting part 104 with adjustable position. For any one of the battery cell fixing positions 102, the position of the limiting part on one side of the battery cell fixing position can be adjusted, and the position of the limiting parts on two sides of the battery cell fixing position can be adjusted, so that the battery cell fixing position can be adjusted in specific size, welding of battery cell lugs in different sizes can be adapted, and universal applicability of the tool clamp is improved.

The four sides of the cover plate storage position 105 are respectively provided with a limiting piece. The limiting parts on the four sides form a storage groove matched with the cover plate in shape and size. At any two opposite sides, at least one side limiting part is set as a movable limiting part 104 with adjustable position; specifically, referring to fig. 2, in the present embodiment, a movable limiting member 104 is disposed in the length direction of the cover storage position 105, and a movable limiting member 104 is also disposed in the width direction of the cover storage position 105. Thereby making the lid storage position 105 size-adjustable in both length and width directions.

The lid storage location 105 is also provided with a fool-proof structure. The direction of placing is accurate when being used for guaranteeing the apron material loading, avoids follow-up apron direction to put the reversal and reduce the yield. Specifically, the cover plate storage position 105 is provided with a positioning pin for matching with a liquid injection hole on the cover plate. The locating pin is inserted into the liquid injection hole to realize the locating and fool-proofing of the cover plate.

The movable limiting part 104 is connected to the elastic part below the supporting plate 101, and the bottom of the movable limiting part 104 is connected with a wedge block 106; a pushing structure 2 capable of moving up and down is arranged below the supporting plate 101, and the pushing structure 2 is arranged corresponding to the wedge block 106. Referring to fig. 2, the pushing structure 2 can push the wedge block 106 by moving up and down, so that the movable limiting member 104 moves to adjust the size of the battery cell fixing position 102 or adjust the size of the cover plate storage position 105. The movement of the movable limiting member 104 drives the elastic member to deform, and when the pushing structure 2 is disengaged from the wedge block 106 to reset, the elastic member resets the movable limiting member 104.

Specifically, referring to fig. 3, the elastic member connected to the movable limiting member 104 may be a first elastic member 107. The first elastic member 107 may be fixed on the bottom surface of the supporting plate 101 and connected to the movable limiting member 104. Further, the movable limiting member 104 may be connected to a base 108 below the supporting plate 101, and the wedge 106 may be connected to the base 108. The first elastic member 107 may also be connected to the base 108. The base 108 is slidably coupled to the bottom surface of the support plate 101. Can be realized by a guide rail sliding groove structure and the like.

The movable position-limiting member 104 is connected to a wedge block 106, so that the pushing structure can only move up and down to adjust the position of the movable position-limiting member 104. The pushing structure may be independently provided under the support plate 101 instead of being provided on the support plate 101. The arrangement of the push structure can be facilitated.

On the basis of the above embodiment, further, referring to fig. 4, the pushing structure includes a pushing cylinder 201 disposed along the up-down direction and a pushing plate 202 connected to the pushing cylinder 201, the pushing plate 202 is provided with at least one pushing member; each pushing member corresponds to one movable limiting member 104. That is, one pushing cylinder 201 may be connected with a plurality of pushing members, and may correspondingly push a plurality of movable position-limiting members 104 to move synchronously.

The pusher comprises a pin 203 and a ball bearing 204 attached to the top of the pin 203. Ball bearing 204 contacts wedge block 106 as the pushing structure pushes wedge block 106, which may reduce friction by rotating. And the ball bearing 204 can rotate relative to the pin 203 in multiple directions, so that the pushing piece can adapt to wedge blocks 106 in different arrangement directions.

Specifically, referring to fig. 2 and fig. 4, in the present embodiment, a movable limiting member 104 is disposed at a side edge of each battery cell fixing portion 102. Therefore, two battery cell fixing positions 102 can be correspondingly provided with one pushing cylinder 201, and one pushing cylinder 201 can be correspondingly provided with two pushing parts to be in one-to-one correspondence with the movable limiting parts 104 of the two battery cell fixing positions 102.

A movable stopper 104 is provided in each of two directions of the cover storage 105. Similarly, one pushing cylinder 201 may be correspondingly disposed below the cover plate storage location 105, and one pushing cylinder 201 may be provided with two pushing members, which correspond to the two movable limiting members 104 one by one.

On the basis of the above embodiment, further, referring to fig. 5, the cell feeding mechanism 4 includes a feeding displacement structure disposed on a side of the conveying mechanism and a clamping jaw assembly connected to the feeding displacement structure; the clamping jaw assembly comprises two groups of clamping jaws which are arranged side by side, and each group of clamping jaws comprises a clamping jaw air cylinder 405 and a clamping jaw body 406 connected to two opposite sides of the clamping jaw air cylinder 405; the clamping jaw air cylinder 405 is used for driving the clamping jaw bodies 406 on the two sides to move towards or away from each other. Two sets of clamping jaws that set up side by side are got two electric cores simultaneously and are pressed from both sides, correspond two electric core fixed position 102 on the anchor clamps backup pad 101.

Referring to fig. 6, the bottom of each jaw cylinder 405 is connected to a vertically floatable cushion assembly between the two jaw bodies 406. Buffering subassembly is between two claw bodies 406, when the clamping jaw gets electric core downwards, and the interval between two initial claw bodies 406 is greater than the width of electric core, and buffering subassembly can touch electric core when the clamping jaw is downwards to downwards along with the continuation of clamping jaw, the upwards shrink of buffering subassembly makes and supports tight electric core, then removes two claw bodies 406 and gets to electric core. The displacement structure is then moved to move the jaws to the clamp. Set up the buffering subassembly for electric core is pressing from both sides the material loading transfer in-process of getting, and electric core can receive supporting of buffering subassembly and press, thereby is favorable to electric core to keep leveling neatly.

On the basis of the above embodiment, further, referring to fig. 7, the bottom of the clamping jaw air cylinder 405 is connected with a fixing plate 408, the fixing plate 408 is connected with a centering air cylinder 409 in the middle of the two clamping jaw air cylinders 405, and two ends of the centering air cylinder 409 are correspondingly connected with push plates 413 for pushing the two push plates 413 to approach or depart from. Set up centering cylinder 409 and push pedal 413, can be used to promote two electric cores on two electric core fixed position 102 in anchor clamps backup pad 101 to realize the regulation of interval between two electric cores, improve the suitability.

On the basis of the above embodiment, further, the buffer assembly is slidably connected to the fixing plate 408, two ends of the centering cylinder 409 are correspondingly connected to the two buffer assemblies, adjacent sides of the two buffer assemblies are respectively connected to the push plate 413, and the push plate extends out of the buffer assembly downward. I.e., the push plate 413 is provided on the buffer assembly. Two ends of the centering cylinder 409 are correspondingly connected with the two buffering components; the buffer assembly is slidably connected to a fixing plate 408 at the bottom of the clamping jaw cylinder 405 along the telescopic direction of the centering cylinder 409. The centering cylinder 409 pushes the two buffer assemblies to drive the push plate 413 to approach or move away.

The specific process of cell loading may be: the initial cells are placed on the tooling plate in pairs, each pair comprising cells with two oppositely disposed tabs. The displacement structure initially drives the clamping jaw assembly to move to the tooling plate, and two clamping jaws of the clamping jaw assembly clamp a pair of battery cells at a time; then the displacement structure drives the clamping jaw assembly to move to the supporting plate 101; the displacement structure firstly puts a pair of electric cores on the two electric core fixing positions 102 correspondingly downwards, then loosens the claw bodies 406 of the clamping jaws, and then releases the supporting force applied to the electric cores by the buffer assembly upwards; at this moment, electric core does not receive clamping jaw assembly's effort, and two push pedal 413 are located the centre of a pair of electric core, and when the nearer unsatisfied anchor clamps requirement of distance between two electric cores, start centering cylinder 409 and drive two push pedal 413 and keep away from to two push pedal 413 drive two electric cores and keep away from the regulation of realizing the interval, make and satisfy the anchor clamps requirement. This electric core feed mechanism's functionality and suitability are stronger, and intelligent level is than higher, is fit for being used for automatic production line.

Further, referring to fig. 6 and 7, a mounting plate 407 is connected to the top of the clamping jaw cylinder 405, the mounting plate 407 is connected to the loading level shift structure, and a swing cylinder 404 is disposed between the mounting plate 407 and the loading level shift structure. Swing cylinder 404 can realize the swing displacement of clamping jaw assembly, is favorable to realizing smoothly the material loading of electric core. Further, referring to fig. 5, the feeding displacement structure may include a first horizontal moving structure 401, a second horizontal moving structure 402, and a vertical moving structure 403 to provide three-dimensional displacement movement.

Further, referring to fig. 6 and 7, the buffer assembly includes a buffer plate 410 connected to the bottom of the jaw cylinder 405 and a buffer pad 412 disposed opposite to the lower side of the buffer plate 410, and an elastic member is connected between the buffer pad 412 and the buffer plate 410. So that the cushion 412 has a space for upward and downward elastic movement. Specifically, the elastic member between the cushion 412 and the cushion plate 410 may be a second elastic member 411. The second elastic member 411 may be fitted over the guide shaft. The buffer 412 may be fixedly coupled to one end of the guide shaft, and the other end of the guide shaft may pass through the buffer plate 410 and have a stopper at an end thereof. The limiting portion cannot penetrate through the buffer plate 410, so that the buffer pad 412 and the guide shaft can integrally float up and down relative to the buffer plate 410. The second elastic member 411 functions to apply elastic force to the cushion 412 at the periphery of the guide shaft.

Further, the claw body 406 of the clamping jaw is L-shaped, and the bottom edge can be used for supporting the battery cell. Further, the inner sides of the jaw body 406 of the clamping jaw and the movable limiting member 104 may be respectively connected with a flexible block. The cushion 412 may be a flexible cushion. Damage to the battery cell can be avoided.

On the basis of the above embodiment, further, the welding mechanism includes a welding head and a visual detection structure, and the visual detection structure is used for identifying and positioning the welding position and detecting and analyzing the weld formed by welding. The welding mechanism is used for welding the battery core lug when the pressing mechanism is pressed on the battery core. The welding structure specifically comprises a welding head and a visual detection structure arranged on the welding head. The visual inspection structure includes a visual camera and a matching light source. The visual detection structure is used for identifying and positioning the welding position by using the image so as to ensure that the welding head performs welding at the welding position; the method is also used for analyzing and detecting the welding seam formed by welding by using the image to ensure the welding quality.

Referring to fig. 8, the pressing mechanism 6 includes a pressing support 601 and a shielding plate 602 movably connected to the pressing support 601 up and down, the shielding plate 602 is used for covering the battery core during welding, an opening corresponding to a tab of the battery core is formed in the shielding plate 602, a pressing head 608 is connected to the opening, and the pressing head 608 is in a penetrating structure and corresponds to a welding portion. The pressing mechanism is used for pressing and arranging the battery core above the battery core when the battery core lug is welded with the cover plate. The pressure head 608 is correspondingly pressed at the tab position of the battery cell, i.e. the welding position. The ram 608 is configured to penetrate vertically, that is, the ram 608 presses around the welding portion in a ring shape, so that the welding portion is exposed, and the welding head can reach the welding portion from the inside of the ram 608 to perform welding. The shielding plate 602 covers the battery core, so that the surface of the battery core is exposed only at the corresponding position of the pressure head 608, i.e., the welding position, and other positions except the welding position of the battery core can be protected, thereby preventing impurities such as metal chips generated in the welding process from falling on the battery core.

The embodiment provides a pressing mechanism which limits and presses the welding position by using the pressing head 608, which can be beneficial to accurate positioning and smooth proceeding of welding; set up sunshade 602 above electric core, sunshade 602 can shelter from the protection to other positions of electric core except that the welding position, can prevent that impurities such as the metal fillings that welding process produced from falling on electric core, is favorable to guaranteeing the normal processing of electric core, avoids damaging electric core and influences electric core quality.

Further, referring to fig. 9, the ram 608 is a hollow structure penetrating up and down; and the ram 608 decreases in cross-sectional area from top to bottom. I.e., ram 608 tapers from top to bottom. The welding is convenient to carry out.

On the basis of the above embodiment, further referring to fig. 8, the shielding plate 602 is further connected with a first dust removing cover 607 at the opening, and the first dust removing cover 607 is connected to the first dust remover through a first dust removing pipeline; the first dust excluding hood 607 is arranged along the opening in a ring shape; the first dust removal cover 607 is a hollow structure, and a first dust suction port 6071 is formed in the inner wall of the first dust removal cover 607.

The placement of the indenter 608 allows impurities generated during the welding process to be concentrated at the indenter 608, i.e., at the opening in the shutter 602. First dust excluding hood 607 is connected first dust remover, can in time remove dust in order better realization impurity treatment in welding process, further improves the cleanliness of electric core. The first dust cover 607 can protect the periphery of the opening to prevent the impurities from floating. Namely, the first dust removing hood 607 has a closed cavity therein. The closed cavity is communicated with the inside of the pressure head 608 through a first dust suction port 6071, and the closed cavity is communicated with a first dust remover through a first dust removing pipeline. Preferably, a plurality of first dust suction ports 6071 are circumferentially provided on an inner wall of the first dust removal cover 607. Is beneficial to dust absorption around the welding part and improves the dust removal efficiency. Preferably, referring to fig. 10, the first dust suction port 6071 is arranged below the inner wall of the first dust hood 607; namely, the dust remover is arranged close to the welding part, thereby being beneficial to better dust removal. Furthermore, a gradually expanding section from top to bottom is arranged at the lower part in the first dust removal cover 607; that is, the cross-sectional size of the end of the first dust removing cover 607 connected to the shield plate is larger. The first dust suction port 6071 may be provided at the divergent section. The impurity that the welding process produced of being favorable to better injecing is absorbed.

On the basis of the above-described embodiment, further, referring to fig. 8 and 9, the compacting support 601 is connected with a first dust removing bracket 609, and a first dust removing pipeline is placed in the first dust removing bracket 609. The first dust removing bracket 609 is of an arc-groove-shaped structure and can be used for fixedly placing a first dust removing pipeline. Further, a first dust removing bracket 609 is attached to the compacting support 601 by a support post. The support column is connected to the pressing support 601 in an up-down position adjustable manner.

Further, referring to fig. 8, the shield 602 is attached to a fixed base 604, and the fixed base 604 is attached to the pressing bracket 601. Because the shield 602 is cantilevered, the fixed base 604 facilitates a secure attachment of the shield 602 to the compression mount 601. The cover 602 may also have ribs 603, and a plurality of ribs 603 may be provided to improve structural stability and robustness.

A guide rail can be arranged between the fixed bottom plate 604 and the pressing support 601 along the vertical direction, the guide rail is fixed on the pressing support 601, and the fixed bottom plate 604 is connected with the guide rail in a sliding manner; so as to realize the up-and-down position adjustment of the shielding plate 602 and the fixed bottom plate 604. The shutter 602 is connected to a driving cylinder 605 for moving up and down by the driving cylinder 605. The driving cylinder 605 is fixed to the pressing support 601. Further, a limiting component 606 is disposed on the pressing support 601 in the moving path of the fixed base 604, and is used for positioning the moving stroke of the fixed base 604 and the shutter 602, so as to ensure that the shutter 602 moves in place. The limiting component 606 may be a fixed limiting form such as a stopper, or an elastic limiting form such as a buffer, and is not limited specifically.

On the basis of the above embodiment, further referring to fig. 11, the cleaning mechanism 7 includes a cleaning support 701 and a fixing frame 702 movably connected to the cleaning support 701 up and down, a guide rod 703 is connected to the fixing frame 702, a cleaning assembly is slidably connected to the guide rod, and the cleaning assembly is connected to a driving assembly, and the driving assembly is configured to drive the cleaning assembly to reciprocate along the guide rod to clean the battery cell. The cleaning mechanism 7 is arranged behind the pressing mechanism along the welding process. The cleaning mechanism is used for cleaning the battery cell after the battery cell tab is welded; so as to ensure the cleanliness of the battery cell.

After the battery cell tabs are welded, the battery cell tabs are moved to the lower portion of the fixing frame 702, and the welding positions correspond to the cleaning assembly up and down. And then the fixing frame 702 is moved downwards to a proper position, namely a position for cleaning the battery cell. Then, the driving assembly is used for driving the cleaning assembly to reciprocate along the guide rod 703, so that the battery cell is cleaned. Further remove the impurity on the electric core surface, guarantee electric core quality.

Further, the cleaning assembly comprises a second dust hood 704, the second dust hood 704 is provided with a second dust suction port, and the second dust hood 704 is connected to the second dust remover through a second dust removing pipeline; a second dust-removing bracket 705 matched with the second dust-removing pipeline is connected to the cleaning support 701. The electric core can be cleaned through the second dust remover. The second dust removing cover 704 is a hollow structure and has a closed cavity. The closed cavity is communicated with the outside through a second dust suction port and communicated with a second dust remover through a second dust removing pipeline. The second dust absorption mouth can set up towards electric core. The second dust removing bracket 705 is in an arc-shaped groove-shaped structure and can be used for fixedly placing a second dust removing pipeline. Further, a second dust bracket 705 is attached to the cleaning support 701 by a support post. The support column is adjustably connected to the cleaning support 701 in an up-down position.

On the basis of the above embodiment, further referring to fig. 12, the sweeping assembly further comprises a brush 708. The brush 708 may be used to clean the cell surface while the second precipitator is used to remove impurities. The cleaning efficiency is higher. Further, the brush 708 may be directly attached to the second dust cover 704; a fixing block may be additionally disposed to fix the brush 708, which is not limited specifically. The brush 708 may preferably be a bowl-shaped brush 708.

On the basis of the above embodiment, further referring to fig. 11, the driving assembly includes a swing structure 706 connected to the fixed frame 702, the swing structure 706 is fixedly connected to one end of a connecting member 707, and the other end of the connecting member 707 is rotatably connected to the cleaning assembly. The movement of the sweeping assembly along the guide rods 703 is achieved by the rotation of the oscillating structure 706. The swing structure 706 may be a swing cylinder or the like capable of providing a rotational movement, and is not limited in particular. Compared with a linear driving assembly for driving the sweeping assembly to move along the guide rod 703, the swinging structure 706 can be fixed on the fixing frame 702, so that the transverse installation space of the cleaning mechanism can be reduced.

Further, referring to fig. 12, the fixing frame 702 is slidably connected to the cleaning support 701 up and down. A guide rail may be provided on the cleaning support 701 in a vertical direction, and the fixing frame 702 is slidably coupled to the guide rail. The fixed frame 702 is connected with a driving cylinder 709 and moves up and down by the driving cylinder 709. The cleaning support 701 is provided with a limiting component 710 on the moving path of the fixing frame 702, and the limiting component 710 is used for positioning the up-and-down moving stroke of the fixing frame 702 and ensuring that the fixing frame 702 moves in place. The limiting component 710 may be a fixed limiting form such as a stopper, or an elastic limiting form such as a buffer, and is not limited specifically.

Further, a plurality of guide rods 703 may be arranged side by side on the fixing frame 702, and the cleaning assembly is slidably connected along the plurality of guide rods 703 at the same time. The moving stability of the cleaning assembly is improved. The fixing frame 702 can be respectively provided with a limiting component at two ends of the guide rod 703; the device is used for limiting and fixing the stroke of the cleaning assembly. The limiting component can be in a fixed limiting form such as a stop block and the like, can also be in an elastic limiting form such as a buffer and the like, and is not limited specifically.

On the basis of the above embodiment, further, referring to fig. 13, the taping mechanism 8 includes a tape feeding mechanism, a clamping mechanism, a tape pulling mechanism, an adsorbing mechanism, and a cutting mechanism; the clamping mechanism is arranged between the adhesive tape feeding mechanism and the tape pulling mechanism, comprises a pressing plate and a jacking block which are oppositely arranged and adjustable in distance, and is used for allowing an adhesive tape to pass through; the traction mechanism comprises a traction clamping jaw, and the position of the traction clamping jaw relative to the clamping mechanism is adjustable and is used for drawing the free end of the adhesive tape. The tape supply mechanism is used for fixing the tape roll 81. The free end of the adhesive tape 82 at the adhesive tape feeding mechanism firstly passes through the space between the pressure plate 8201 and the top block 8202, then the free end of the adhesive tape 82 is clamped by the tape pulling clamping jaw 8301, and the length of the adhesive tape between the tape pulling clamping jaw 8301 and the clamping mechanism is adjusted through the movement of the tape pulling clamping jaw 8301. The clamping mechanism is used for loosening the pressure plate 8201 and the top block 8202 to facilitate smooth movement of the adhesive tape 82 when the tape pulling clamping jaw 8301 pulls the adhesive tape 82 to move; and is used for pressing the pressure plate 8201 and the top block 8202 to press and fix the adhesive tape when the tape drawing clamping jaw 8301 is drawn in place. The tape pulling clamping jaw 8301 is pulled to the right position, that is, the tape pulling clamping jaw 8301 moves away from the clamping mechanism until the length of the adhesive tape between the tape pulling clamping jaw 8301 and the clamping mechanism reaches the preset length.

The adsorption mechanism is connected with the adsorption displacement structure and is used for adsorbing and fixing the adhesive tape; the adsorption displacement structure is used for driving the adsorption structure to move. The adsorption mechanism can be fixed above the space between the traction mechanism and the clamping mechanism through an adsorption displacement structure. The traction mechanism and the clamping mechanism and the battery cell clamp are both positioned in the displacement range of the adsorption displacement structure. The battery cell clamp is used for fixedly placing a battery cell to be glued. The cutting mechanism is arranged between the tape drawing clamping jaw and the clamping mechanism; the adsorption mechanism is used for adsorbing and fixing the adhesive tape between the traction mechanism and the clamping mechanism after the traction mechanism pulls the adhesive tape 82 in place. The cutting mechanism is used for cutting the adhesive tape 82 after the adhesive mechanism adsorbs and fixes the adhesive tape between the traction mechanism and the clamping mechanism, so that the adhesive tape 82 is disconnected. The adsorption mechanism is also used for moving the cut adhesive tape to the cell clamp under the driving of the adsorption displacement structure after the cutting mechanism cuts off the adhesive tape 82, and the adhesive tape is loosened after the adhesive tape is pressed to the lug part of the cell. And finishing the rubberizing.

The embodiment provides a pair of rubberizing device sets up clamping mechanism between tape-pulling mechanism and sticky tape feed mechanism, can inject the sticky tape that needs length between tape-pulling mechanism and clamping mechanism, carries out better fixed to the sticky tape, and through adsorption structure, can realize that the absorption of sticky tape is fixed and shift the rubberizing, and this rubberizing device can be better realize the fixed of sticky tape, can realize automatic rubberizing operation, is favorable to improving production efficiency.

The adsorption mechanism comprises two suckers 8401 arranged side by side at intervals, and the distance between the two suckers is matched with the distance between the two lugs of the battery core. That is, the interval between the two suction cups 8401 is the same as the interval between the two tabs. Therefore, the two suckers 8401 can press the adhesive tape on the tab position, and the firmness of gluing the tab position is favorably realized. The two suckers 8401 are connected with the adsorption displacement structure in an adjustable mode. When the types of the battery cells fixedly placed by the battery cell clamp are different, the distance between the two suckers 8401 can be flexibly adjusted to adapt to the lug distances of the battery cells of different types.

On the basis of the above embodiment, further, the adsorption displacement structure includes a first displacement assembly 8402 extending from the corresponding position of the tape-pulling clamping jaw 301 to the corresponding position of the battery core tab, and the first displacement assembly 8402 is provided with a limiting assembly 83 at the corresponding position of the tape-pulling clamping jaw 8301 and the corresponding position of the battery core tab respectively. Namely, the adsorption mechanism can be initially and correspondingly positioned above the tape pulling clamping jaw 8301, and after the tape pulling clamping jaw 8301 pulls the adhesive tape in place, the adsorption mechanism descends to adsorb and fix the adhesive tape; after the adhesive tape is cut off, the adsorption mechanism can move to the position above the lug of the battery cell along the first displacement assembly 8402, namely the position above the battery cell clamp corresponding to the part needing adhesive tape pasting; and then the adsorption mechanism can be descended to attach the adhesive tape to the lug position of the battery core. The limiting component 83 is used for limiting and fixing the stroke of the adsorption mechanism moving along the first displacement component 8402, and ensures that the adsorption mechanism can accurately stop at the corresponding position of the belt-pulling clamping jaw 8301 and the corresponding position of the lug of the battery cell, so that the first displacement component 8402 can more accurately position the adsorption mechanism, and the automatic rubberizing is more favorably realized.

Further, the limiting component 83 may be a fixed limiting form such as a stopper, or an elastic limiting form such as a buffer, and is not limited specifically. Further, the first displacement assembly 8402 may be secured above the leasing mechanism and the clamping mechanism by a support bracket 8403. The first displacement assembly 8402 may include two parallel guide rails, and the adsorption mechanism may be slidably connected to the guide rails at both sides through a connection plate 8405. And the connecting plate 8405 is connected with a driving piece at least one guide rail for driving the connecting plate 8405 and the adsorption mechanism to move along the guide rail. The driving member may be a sliding table structure or a driving cylinder, etc., and is not limited to provide linear movement.

Further, referring to fig. 14, the adsorption displacement structure further includes a second displacement assembly 8404; the moving direction of the second displacement assembly 8404 is perpendicular to the moving direction of the first displacement assembly 8402. The first displacement assembly 8402 is connected with the adsorption mechanism through two connecting plates 8405 which are fixedly connected at intervals. The upper connecting plate 8405 is slidably connected to the first displacement assembly 8402. The second displacement assembly 8404 comprises a guide rail and a driving piece which are arranged on the lower connecting plate 8405, and the adsorption mechanism is connected with the guide rail in a sliding manner and is also connected with the driving piece. The guide rails of the second displacement assembly 8404 are perpendicular to the guide rails of the first displacement assembly 8402.

Further, the suction mechanism is connected to the second displacement assembly 8404 through a vertical displacement assembly. Specifically, the vertical displacement assembly is connected to the second displacement assembly 8404 and the adsorption mechanism is connected to the vertical displacement assembly. Thereby realizing displacement movement of the adsorption mechanism in three spatial directions. The vertical displacement assembly can also comprise a guide rail and a driving piece, and the guide rail can be arranged along the vertical direction; the adsorption mechanism is connected with the guide rail in a sliding manner and is connected with the driving piece. The driving member may be a cylinder or the like. Further, the two suction cups 8401 of the suction mechanism may be connected to the same driving member, or may be connected to two driving members, without limitation.

On the basis of the above embodiment, further, referring to fig. 13 and 14, the tape holding jaw 8301 is connected to the tape displacement structure 8302, and the tape displacement structure 8302 is arranged along the direction of the tape holding mechanism and the clamping mechanism. That is, the lead displacement structure 8302 moves the lead clamp jaws 8301 toward or away from the clamping mechanism. The direction of the traction mechanism and the clamping mechanism is the straight line direction of the traction mechanism and the clamping mechanism. The tow jaw 8301 can move along the tow displacement structure 8302 towards the clamping mechanism to clamp the free end of the adhesive tape; and then moved away from the clamping mechanism to pull the length of the tape. The clamping mechanism is used for loosening when the tape drawing clamping jaws 8301 clamp the adhesive tape to draw and move; after the leading jaw 8301 is pulled into position, the leading jaw 8301 is compressed before gripping the free end of the adhesive tape again.

Further, the tape pulling displacement structure 8302 may be a sliding platform structure or an air cylinder, etc. for providing linear movement, which is not limited specifically. The traction belt displacement structure 8302 is provided with a limiting component 83 at the corresponding position of the clamping mechanism and the corresponding position of the traction in place respectively, and is used for limiting and fixing the moving stroke of the traction clamping jaw.

Referring to fig. 16, the tape pulling clamp 8301 includes a tape pulling cylinder and two upper and lower claw bodies connected to the tape pulling cylinder, wherein a roller is disposed on the lower claw body. The traction cylinder can be a clamping jaw cylinder and can drive the two jaw bodies to move towards or away from each other to clamp or loosen. The roller is provided on the surface of the lower jaw facing the upper jaw, and the axial direction of the roller may be arranged along the width direction of the tape 82. The roller is rotatably connected to the lower claw body. The roller can correspondingly reduce the friction force between the roller and the adhesive tape, and the roller is arranged to facilitate the adhesive tape to be separated from the tape pulling clamping jaw 8301 after the adhesive tape is cut off.

Further, the upper surface of the top block 8202 is provided with ribs. The top block is located below the pressure plate 8201. The upper surface of the top block 8202 is provided with a rib which is in contact with the adhesive tape, so that the contact area with the adhesive tape can be correspondingly reduced, the friction force between the rib and the adhesive tape is reduced, and the adhesive tape is convenient to separate.

Further, the top block 8202 is connected to the pressing displacement structure disposed in the vertical direction. Can drive top block 8202 through compressing tightly the displacement structure and reciprocate to be close to the roof or keep away from the roof, realize compressing tightly or loosening the sticky tape. The compression displacement structure can be a cylinder or the like.

On the basis of the above embodiment, further, referring to fig. 13 and 14, the tape feeding mechanism includes a fixed bearing 8105, and the fixed bearing 8105 is used for fixing the tape roll 81. The adhesive tape roll 81 is sleeved on the fixed bearing 8105 and can rotate freely. Thereby the free end of the adhesive tape can be pulled to realize the feeding of the adhesive tape. A plurality of tensioning pieces are arranged between the fixed bearing 8105 and the clamping mechanism and used for supporting and tensioning the adhesive tape.

On the basis of the above embodiment, further, referring to fig. 13 and 14, the tape feeding mechanism is fixed to the supporting back plate 8101. The plurality of tension members comprises at least one movable tension member 8102, and the adhesive tape passes through the top of the movable tension member 8102 and passes through the bottom of the other tension members. A sliding groove 8104 is formed in the supporting back plate 8101 in the vertical direction, the movable tensioning piece 8102 is connected with the sliding groove 8104 in a sliding mode, and the movable tensioning piece 8102 penetrates through the sliding groove 8104 to be connected to one end of the rope. Referring to fig. 15, a fixed pulley 103 is fixed on the top of the supporting back plate 8101 at one side where the rope is arranged, and the other end of the rope passes through the fixed pulley 8103 to be connected with a counterweight block 8106.

The tensioning member can be a rotating shaft structure, namely, when the adhesive tape is pulled to move, the tensioning member can rotate so as to reduce friction and facilitate smooth pulling and moving of the adhesive tape. The balancing weight 8106 pulls the movable tensioning piece 8102 through the rope to tension the adhesive tape upwards. By adjusting the weight of the weight block 8106, the tension degree of the adhesive tape can be adjusted.

On the basis of the above embodiment, further, referring to fig. 14, the supporting back plate 8101 is provided with a laser sensor 8107 at the side of the fixed bearing 8105 and at least one tension member. The laser sensor 8107 may be a distance sensor. The laser sensor 8107 positioned at the side of the fixed bearing 8105 can monitor the distance between the fixed bearing and the adhesive tape roll 81 in real time, so as to detect the residual amount of the adhesive tape roll 81.

The laser sensor 8107 can be arranged on the side edge of the movable tensioning piece 8102, and the laser sensor 8107 can also be arranged on the side edges of other tensioning pieces. The laser sensor 8107 positioned on the side of the movable tensioning member 8102 can monitor the position of the movable tensioning member 8102 in the chute 8104 so as to monitor and judge the tensioning condition of the adhesive tape. Initially, a more suitable preset position of the movable tensioning member 8102 can be determined, when the laser sensor 8107 monitors that the actual position of the movable tensioning member 8102 is higher than the preset position, it is indicated that the weight block 8106 is heavy, so that the tensioning degree of the adhesive tape is larger, and at this time, the weight block 8106 can be adjusted to lower the position of the movable tensioning member 8102, so that the adhesive tape is in a more suitable tensioning degree; when the laser sensor 8107 monitors that the actual position of the movable tensioning piece 8102 is higher than the preset position, the situation that the adhesive tape is used up may be also the case that the adhesive tape is used up, namely, the movable tensioning piece 8102 is not restricted by the adhesive tape, so that the movable tensioning piece 8102 can move upwards, and the replacement of the adhesive tape roll 81 can be reminded at the moment.

When the laser sensor 8107 monitors that the actual position of the movable tensioning part 8102 is lower than the preset position, it is indicated that the tensioning degree of the adhesive tape does not reach the preset degree, and at the moment, the position of the movable tensioning part 8102 lifted by the balancing weight 8106 can be adjusted to enable the adhesive tape to be in a more proper tensioning degree. When the laser sensor 8107 monitors that the actual position of the movable tensioning piece 8102 deviates from the preset position, alarm prompt can be performed.

Further, the laser sensor 8107 at the other tensioning member, i.e., the non-movable tensioning member 8102, may also be a distance sensor, and may be used to monitor the distance between the other tensioning member and the adhesive tape, so as to determine and monitor the tensioning condition of the adhesive tape. Through setting up laser sensor 8107, can judge the monitoring to the tensioning condition of sticky tape, be favorable to guaranteeing sticky tape 82's steady smooth feed, improve production efficiency.

Further, a laser sensor is provided near the tension member of the clamping mechanism. The laser sensor may be an infrared sensor disposed towards the tape location. Can be used for monitoring whether the output end of the adhesive tape feeding mechanism has the adhesive tape. Ensuring smooth conveying of the adhesive tape.

On the basis of the above embodiment, further, referring to fig. 16, the cutting mechanism includes a cutting blade 8502, the cutting blade 8502 being connected to a cutting displacement structure 8501, the cutting displacement structure 8501 being disposed along the width direction of the adhesive tape. The cutting displacement structure 8501 drives the cutting blade 8502 to move in the width direction of the adhesive tape 82 to cut the adhesive tape. The cutting displacement structure 8501 may be a cylinder or the like. The cutting mechanism is disposed adjacent to the clamping mechanism.

On the basis of the above embodiment, further referring to fig. 17, the rolling mechanism 9 includes a rolling support 901, a first mounting plate 903 is connected to the rolling support 901, a first displacement structure 906 is fixedly disposed on the first mounting plate 903, and the first displacement structure 906 is connected to the second mounting plate 904. The first displacement structure 906 is used to drive the second mounting plate 904 to move linearly. A vertical displacement structure 907 is fixedly arranged on the second mounting plate 90, and the vertical displacement structure 907 is connected with the third mounting plate 905. The vertical displacement structure 907 is used to drive the third mounting plate 905 to move in the vertical direction. The third mounting plate 905 is connected to a second displacement structure 910, and the second displacement structure 910 is connected to the roller assembly. The second displacement structure 910 is used to drive the roller 911 assembly to move linearly. The directions of movement of the first displacement structure 906 and the second displacement structure 910 are parallel.

Thus, while the first displacement structure 906 drives the second mounting plate 904, the third mounting plate 905 and the roller assembly to move along the moving direction of the first displacement structure 906, the second displacement structure 910 can drive the roller assembly to also move along the moving direction within a small range. The rubberizing rolling device can be utilized to roll the rubberizing part so as to realize firm gluing of the adhesive tape. The specific process is as follows: the initial first mounting plate 903 is positioned above a rubberizing part of the workpiece, and the roller assembly corresponds to the rubberizing part, namely the roller assembly is positioned right above the rubberizing part; then the vertical displacement structure 907 drives the third mounting plate 905 and the roller assembly to descend until the roller assembly contacts with the rubberizing part; then the first displacement structure 906 drives the second mounting plate 904, the third mounting plate 905 and the roller assembly to move along the rubberizing part for rolling and flattening operation. When the roller bearing assembly moves to the key position of rubberizing position, can start second displacement structure 910 and drive the roller bearing assembly and carry out the round trip movement of minizone, can carry out a lot of rolls pressing in local, form the operation of similar artifical roll pressing, realization that can be better is with sticky tape fastening laminating roll pressing, improves automation and intellectuality.

Further, two cantilever plates 902 are connected to the rolling support 901, and the first mounting plate 903 is connected to the cantilever plates 902. A third displacement structure may also be provided on the cantilever plate 902 along the cantilever plate, with the first mounting plate 903 being connected to the third displacement structure. The moving direction of the third displacement structure is a horizontal direction perpendicular to the moving direction of the first displacement structure. Therefore, the three-dimensional space movement of the roller assembly can be realized, and the applicability and the flexibility are improved.

The roller component comprises two rollers which are arranged side by side at intervals, and the axial direction of the roller 911 is vertical to the moving direction of the first displacement structure; the two rollers 911 are arranged in parallel in the axial direction. The axial direction of the roller 911 is perpendicular to the moving direction of the first displacement structure 906; so as to facilitate smooth rolling of the roller 911. The second displacement structure is used for driving the two rollers to move towards or away from each other; the two rollers 911 are arranged to roll different parts at the same time, which is beneficial to improving efficiency.

Further, the second displacement structure 910 includes a jaw cylinder. The gripper cylinder drives the two rollers 911 toward and away from each other. Specifically, the roller 911 is rotatably connected below the clamping jaw cylinder; the clamping jaw cylinder can be connected to the third mounting plate 905, so that the roller 911 is in contact with the rubberizing part, and the clamping jaw cylinder is convenient to fix.

In addition to the above embodiments, an elastic member is further disposed between the second displacement structure 910 and the third mounting plate 905. The elastic member is a third elastic member 912. The roller component has an up-and-down floating space, and can better adapt to the surface of the rubberizing part; in the rolling process, the roller assembly can be pressed on the surface of the rubberizing part to compress the third elastic part 912, and the third elastic part 912 can apply a propping force to the roller assembly, so that the roller assembly can be kept in close contact with the rubberizing part, and the rolling effect is ensured. A plurality of third elastic members 912 may be provided.

On the basis of the above embodiment, further, an elongated opening is provided on the first mounting plate 903 along the moving direction of the first displacement structure 906, the second mounting plate 904 is connected to the upper surface of the first mounting plate 903, and the vertical displacement structure 907 is connected to the third mounting plate 905 below the first mounting plate 903 through the opening.

In addition to the above embodiments, further, the upper surface of the first mounting plate 903 is provided with a guide rail along the moving direction of the first displacement structure 906, and the second mounting plate 904 is slidably connected with the guide rail. Guide rails may be provided on both sides of the opening, respectively, and the second mounting plate 904 may be slidably coupled to the guide rails on both sides of the opening, respectively. Attaching the second mounting plate 904 to the upper surface of the first mounting plate 903 may facilitate stable and secure support.

Further, a first displacement structure 906 is secured to an upper surface of the first mounting plate 903 and is coupled to the second mounting plate 904. The first displacement structure 906 may be a pneumatic cylinder, the free end of which is connected to the second mounting plate 904 via a connector. The first displacement structure 906 may be other structures, such as a sliding platform structure, for providing a linear movement, and is not limited in particular.

In addition to the above embodiments, a limiting component 908 is further provided on the first mounting plate 903 on the moving path of the second mounting plate 904. Which defines the moving orientation of the second mounting plate 904, the third mounting plate 905, and the roller assembly, i.e., the roll-flat operation location. The position-limiting component 908 may be a fixed position-limiting form such as a stop, or a flexible position-limiting form such as a hydraulic buffer, and is not limited in detail.

Further, a vertical guide structure is connected between the second mounting plate 904 and the third mounting plate 905. For defining the vertical moving direction of the third mounting plate 905, ensuring the up-and-down movement. In particular, the vertical guide structure may be a linear bearing structure. The linear bearing structure includes a fixed housing and a guide shaft 909 slidably disposed within the fixed housing. The fixed housing may be secured to the second mounting plate 904. The guide shaft 909 penetrates through the fixing sheath, and has one end connected to the third mounting plate 905 and the other end connected to the limiting member, which cannot penetrate through the fixing sheath. Can be equipped with a plurality of vertical guide structures, improve the stability that third mounting panel 905 reciprocated.

Further, the vertical displacement structure 907 may be a cylinder, or may be other structures, so as to achieve the purpose of providing linear movement, and is not limited specifically.

Further, referring to fig. 1, the first mounting plate 903 is correspondingly located above the cell fixture. Specifically, the roller assembly corresponds to the position of the cover plate fixing position 103. Namely, the roller assembly is correspondingly located above the cover plate fixing position 103. The tab position on the cover plate placed at the cover plate fixing position 103 is a welding position, the tabs of the battery cells on two sides are welded to the tab position on the cover plate, then the tab position after welding is rubberized, and then rolling is carried out by using the roller assembly.

Further, referring to fig. 1, the conveying mechanism includes a rotary table 13 which is rotated to switch the stations, the stations are distributed along the circumferential direction of the rotary table 13, and the rotary table 13 is provided with the work fixture 1 at the corresponding position of each station. Along with the rotation of carousel 13, each station can operate simultaneously, is favorable to improving production efficiency. Carousel 13 may be provided on cabinet 14.

Further, a manipulator 12 is arranged at the cover plate loading station for loading the cover plate. The mechanical arm 12 at the cover plate feeding station can be a displacement assembly, a sucker arranged on the displacement assembly and the like and is used for adsorbing and transferring the cover plate; the clamping jaw can be used without limitation. A manipulator 12 can also be arranged at the blanking station for blanking the welded battery cell and the cover plate. And transferring the welded battery core and the welded cover plate to a required position from a blanking station. The manipulator 12 at the blanking station can be a displacement assembly, a clamping jaw assembly connected to the displacement assembly and the like, and the clamping jaw assembly is used for clamping and transferring workpieces. Here, the structure of clamping jaw assembly can be the same with the clamping jaw assembly structure in above-mentioned electric core feed mechanism 4, can be convenient for press from both sides simultaneously and get two electric cores, no longer give consideration to repeatedly. The displacement assembly may be a four-axis robot or a six-axis robot, etc., without limitation.

Further, the welding system also includes a code scanning mechanism 10. The code scanning mechanism 10 is used for scanning and verifying the loaded cover plate, and ensuring that the loaded cover plate is a required cover plate. The code scanning mechanism 10 can be arranged on the cabinet 14, and is located within the moving range of the cover plate feeding manipulator, and the specific position is not limited. Further, the conveying mechanism can also be a linear conveying line body structure without limitation.

The specific technological process of the welding system is as follows: the material loading that carries out the apron in proper order along carousel 13 circumference is about to the apron and places 105 departments at the apron, the transfer of apron is about to the apron and shifts to apron fixed position 103 departments, the material loading of electric core is about to electric core and places on anchor clamps, the welding of electric core utmost point ear and apron and start hold-down mechanism when welding and the welding and press and establish and carry out welding process on electric core, start clean mechanism and clean electric core, rubberize at electric core utmost point ear position, the work piece removes from the carousel after rubberizing position roll extrusion is flattened and the welding.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A system for welding a battery cell lug and a cover plate is characterized by comprising a conveying mechanism, and a cover plate feeding station, a cover plate transferring station, a battery cell feeding station, a welding station, a cleaning station, a rubberizing station, a rolling station and a discharging station which are sequentially arranged along the conveying mechanism;

the conveying mechanism is loaded with a tool clamp, the tool clamp comprises a supporting plate, the upper surface of the supporting plate is correspondingly provided with two electric core fixing positions, and a cover plate fixing position is arranged between the opposite ends of the two electric core fixing positions on the upper surface of the supporting plate; a cover plate storage position is arranged on one side of the supporting plate;

the cover plate transfer station is provided with a cover plate transfer mechanism, and the cover plate transfer mechanism is used for transferring the cover plate from the cover plate storage position to the cover plate fixing position; the battery cell loading station is provided with a battery cell loading mechanism; the welding station is provided with a welding mechanism and a pressing mechanism; the cleaning station is provided with a cleaning mechanism; the rubberizing station is provided with a rubberizing mechanism; and the rolling station is provided with a rolling mechanism.

2. The system of claim 1, wherein the battery cell fixing portion is provided with a limiting member at each of two sides thereof, and the limiting member at least one side is a movable limiting member with an adjustable position; the four sides of the storage position of the cover plate are respectively provided with a limiting piece, and at any two opposite sides, the limiting piece at least one side is set as a movable limiting piece with adjustable position;

the movable limiting part is connected to the elastic part below the supporting plate, and the bottom of the movable limiting part is connected with a wedge block; the below of backup pad is equipped with the pushing structure that can reciprocate, the pushing structure with the wedge corresponds the setting.

3. The cell tab and cover plate welding system of claim 1, wherein the cell feed mechanism comprises a feed level displacement structure disposed on a side of the transport mechanism and a jaw assembly connected to the feed level displacement structure; the clamping jaw assembly comprises two groups of clamping jaws arranged side by side, and each group of clamping jaws comprises a clamping jaw cylinder and jaw bodies connected to two opposite sides of the clamping jaw cylinder; the bottom of each clamping jaw cylinder is connected with a buffer assembly capable of floating up and down between the two jaw bodies.

4. The system of claim 3, wherein the clamping jaw cylinders are connected at the bottom thereof with a fixing plate, the fixing plate is connected between the two clamping jaw cylinders with a centering cylinder, and two ends of the centering cylinder are correspondingly connected with push plates for pushing the two push plates to approach or move away from.

5. The battery tab and cover plate welding system of claim 1, wherein the welding mechanism comprises a welding head and a vision inspection structure, and the vision inspection structure is used for identifying and positioning a welding part and detecting and analyzing a weld formed by welding;

hold-down mechanism including compress tightly the support and upper and lower movably connected in compress tightly the sunshade of support, the sunshade is used for covering in the electric core top when the welding, be equipped with the opening that is used for corresponding with the utmost point ear position of electric core on the sunshade, the opening part is connected with the pressure head, the pressure head is link up the structure and corresponds with the weld part position.

6. The battery cell tab and cover plate welding system of claim 5, wherein the shield plate is further connected to a first dust hood at the opening, the first dust hood being connected to a first dust collector through a first dust removal pipeline; the first dust hood is arranged along the opening in an annular shape; the first dust excluding hood is of a hollow structure, and a first dust suction port is formed in the inner wall of the first dust excluding hood.

7. The cell tab and cover plate welding system of claim 1, wherein the cleaning mechanism comprises a cleaning support and a fixing frame movably connected to the cleaning support up and down, a guide rod is connected to the fixing frame, a cleaning assembly is slidably connected to the guide rod, the cleaning assembly is connected to a driving assembly, and the driving assembly is configured to drive the cleaning assembly to reciprocate along the guide rod to clean the cell.

8. The cell tab and cover plate welding system of claim 1, wherein the taping mechanism comprises a tape feed mechanism, a clamping mechanism, a tape pulling mechanism, an adsorption mechanism, and a cutting mechanism; the clamping mechanism is arranged between the adhesive tape feeding mechanism and the tape pulling mechanism, the clamping mechanism comprises a pressing plate and a jacking block which are oppositely arranged and adjustable in distance, and the clamping mechanism is used for allowing an adhesive tape to pass through; the traction mechanism comprises a traction clamping jaw, and the position of the traction clamping jaw relative to the clamping mechanism is adjustable and is used for drawing the free end of the adhesive tape; the adsorption mechanism is connected with the adsorption displacement structure and is used for adsorbing and fixing the adhesive tape; the cutting mechanism is arranged between the tape pulling clamping jaw and the clamping mechanism;

the adsorption mechanism comprises two suckers arranged side by side at intervals, and the distance between the two suckers is matched with the distance between the two lugs of the battery core.

9. The cell tab and cover plate welding system of claim 1, wherein the rolling mechanism comprises a rolling support, the rolling support is connected with a first mounting plate, the first mounting plate is fixedly provided with a first displacement structure, the first displacement structure is connected with a second mounting plate, the second mounting plate is fixedly provided with a vertical displacement structure, the vertical displacement structure is connected with a third mounting plate, the third mounting plate is connected with a second displacement structure, the second displacement structure is connected with a roller assembly, and the moving directions of the first displacement structure and the second displacement structure are parallel;

the roller component comprises two rollers which are arranged side by side at intervals, and the axial direction of each roller is vertical to the moving direction of the first displacement structure; the second displacement structure is used for driving the two rollers to move towards or away from each other;

an elastic piece is arranged between the second displacement structure and the third mounting plate.

10. The system for welding the battery cell tab and the cover plate according to any one of claims 1 to 9, wherein the conveying mechanism comprises a rotary table which is rotated to switch the stations, the stations are distributed along the circumferential direction of the rotary table, and the rotary table is provided with a tool clamp at the position corresponding to each station.