Battery cell combining device

Abstract

The utility model provides a battery core combining device which comprises a core combining assembly, the core combining assembly comprises two clamping pieces which are provided with turnover driving pieces, the two clamping pieces can synchronously and reversely turn over in the vertical direction, and each clamping piece is provided with at least one first clamp, so that pole pieces of the at least two first clamps are close to each other to be pressed, and the pole pieces of the at least two first clamps are separated from each other; completing a core closing action to prepare a battery core; the variable-pitch assembly comprises a variable-pitch mechanism, a swing auxiliary mechanism and a clamping swing mechanism, an auxiliary groove is formed below the position between the two clamping pieces, the swing auxiliary mechanism comprises a supporting piece and an auxiliary driving piece, and part of the supporting piece is located in the auxiliary groove so as to tightly support the battery cell manufactured by the cell assembly; the variable-pitch mechanism comprises a variable-pitch space for limiting and adjusting the outer wall of the battery cell; and the clamping swing mechanism is provided with a swingable clamping end for clamping the battery cell into the variable pitch space. According to the utility model, the combined core can be accurately paired, the combined core dislocation is avoided, the problem of combined core pairing is solved, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a battery core assembling device. Background Art

[0002] The challenge brought by the existing tab stacking technology is that the welding machine cannot complete the welding in one go due to the large number of tab layers. It needs to go through a core assembly process and be assembled before it can flow to the next battery cell welding process.

[0003] However, the existing core joining process line has a low degree of automation, low efficiency, and the phenomenon of core misalignment, which cannot meet the core joining process condition requirements. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a battery cell joining device that can accurately match and join cells, avoid misalignment of cells, solve the problem of cell pairing, and has high work efficiency.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A battery cell closing device, comprising:

[0007] A core closing assembly, wherein the core closing assembly comprises two clamps each provided with a flipping driving member, the two clamps can be synchronously flipped in opposite directions in the vertical direction, and each clamp is provided with at least one first clamp matching with the pole piece, so that the pole pieces of at least two of the first clamps are pressed together to complete the core closing action to form a battery cell;

[0008] A pitch-changing assembly, the pitch-changing assembly includes a pitch-changing mechanism, a swing-assisting mechanism and a clamping and swinging mechanism, an auxiliary groove is provided below the two clamps, the swing-assisting mechanism includes a support and an auxiliary driving member, part of the support is located in the auxiliary groove to support the battery cell made of the core assembly, and the support can be driven by the auxiliary driving member to release the battery cell; the pitch-changing mechanism package has a pitch-changing space to limit and adjust the outer wall of the battery cell; the clamping and swinging mechanism is located below the auxiliary groove, and the clamping and swinging mechanism has a swingable clamping end to clamp the battery cell into the pitch-changing space.

[0009] According to a preferred embodiment, the distance-changing mechanism comprises a pad, at least two first limit members, at least two movable second limit members and a limit member driving member, wherein the at least two first limit members and the at least two movable second limit members surround the distance-changing space with the pad as the center; at least one of the first limit members is driven to move by the limit member driving member, and at least one of the first limit members moves in a direction close to the pad and simultaneously drives at least two second limit members to move in a direction close to the pad;

[0010] Alternatively, at least one of the first limiting members moves away from the backing plate and simultaneously drives at least two second limiting members to move away from the backing plate.

[0011] According to a preferred embodiment, it further comprises a limiting slide rail arranged at the bottom of the distance changing mechanism, the limiting slide rail is perpendicular to the movement direction of the first limiting member, and the two second limiting members are both slidably matched with the limiting slide rail;

[0012] The first limit member is provided with two limit connecting members with inclined grooves, and the two second limit members each have a slide column respectively slidably matched with the two inclined grooves. When the first limit member moves toward the pad, the two second limit members are simultaneously urged to move closer to each other.

[0013] According to a preferred embodiment, the first clamp comprises a positioning member and a reciprocating clamping block, and the clamping block is driven by a clamping driving member to clamp or release the pole piece.

[0014] According to a preferred embodiment, the clamping and swinging mechanism includes a swinging clamping member, a swinging driving member and a swinging lifting member for clamping the battery cell. The swinging lifting member drives the swinging driving member to move up and down. The swinging clamping member is arranged at the swinging end of the swinging driving member to clamp the battery cell on the support and move it to the variable distance space.

[0015] According to a preferred embodiment, the pitch-changing assembly further comprises a pitch-changing displacement mechanism, and the pitch-changing mechanism is arranged on the moving end of the pitch-changing displacement mechanism to drive the pitch-changing mechanism to move horizontally back and forth.

[0016] According to a preferred embodiment, it further comprises a feeding assembly, the feeding assembly comprising a feeding lateral displacement mechanism, a feeding lifting mechanism and a feeding clamping mechanism for clamping the pole piece; the feeding clamping mechanism is arranged on the lifting end of the feeding lifting mechanism, and the feeding lateral displacement mechanism drives the feeding lifting mechanism to move horizontally back and forth;

[0017] The feeding clamping mechanism includes at least one group of clamping arms and a grabbing drive member for driving each group of the clamping arms to open or close, each group of the clamping arms includes two clamping arms arranged opposite to each other, each clamping arm has a liftable rubber-coated clamping jaw and a liftable rubber-coated clamping pad, the rubber-coated clamping jaw and the rubber-coated clamping pad are used to cooperate in clamping one end of the pole piece.

[0018] According to a preferred embodiment, the rubber-coated clamping jaw includes a first section structure and a second section structure connected from top to bottom, the second section structure is arranged horizontally, and the rubber-coated clamping pad is located above the second section structure.

[0019] According to a preferred embodiment, it also includes a first detection mechanism for detecting the quality of the pole piece, and the first detection mechanism is arranged on the feeding clamping mechanism.

[0020] According to a preferred embodiment, a rotating motor is provided on the top of each of the feeding and clamping mechanisms to drive the mechanism to rotate.

[0021] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0022] The utility model has a simple structure, can accurately match the cores, avoid core misalignment, solve the core matching problem, and has high work efficiency. An auxiliary groove is set between the two clamps of the battery core closing device, which can transport the battery cells after closing while reducing the space occupied. At the same time, it has a limit adjustment function to ensure that the outer wall of the battery cell is flush and improve the quality of the core closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 A schematic structural diagram of a battery cell closing device provided in Example 1 of the utility model;

[0025] Figure 2 A schematic diagram of the structure of the core assembly provided in Example 1 of the utility model;

[0026] Figure 3 for Figure 2 A schematic diagram of a top view structure;

[0027] Figure 4 A schematic diagram of the partial structure of a battery cell closing device provided in Example 1 of the utility model;

[0028] Figure 5 A schematic diagram of the three-dimensional structure of the first clamp provided in Example 1 of the utility model;

[0029] Figure 6 A three-dimensional structural schematic diagram of a pitch-changing mechanism provided in Example 1 of the utility model;

[0030] Figure 7 A bottom view structural schematic diagram of the pitch-changing mechanism provided in Example 1 of the utility model;

[0031] Figure 8A schematic diagram of the structure of the feeding and clamping mechanism provided in Example 1 of the utility model;

[0032] Fig. 9 This is a schematic diagram of the three-dimensional structure of the variable-distance displacement mechanism provided in Example 1 of the utility model.

[0033] icon:

[0034] 1. Feeding assembly; 101. Feeding lateral displacement mechanism; 102. Feeding lifting mechanism; 103. Feeding clamping mechanism; 1031. Clamping arm; 1032. Grasping drive member; 10311. Rubber-coated clamping claw; 10312. Rubber-coated clamping pad; 104. Rotating motor; 2. Pitch-changing assembly; 201. Pitch-changing mechanism; 2011. First stopper; 2012. Second stopper; 2013. Pad; 202. Swinging auxiliary mechanism; 2021. Support member; 202 2. Auxiliary drive member; 203. Clamping and swinging mechanism; 2031. Swinging clamping member; 2032. Swinging lifting member; 2033. Swinging drive member; 3. Core closing assembly; 31. Clamping member; 311. First clamp; 3111. Positioning member; 3112. Clamping block; 3113. Clamping drive member; 32. Flipping drive member; 4. Auxiliary slot; 5. Limiting slide rail; 6. Limiting connecting member; 61. Inclined slot; 7. First detection mechanism; 8. Variable pitch displacement mechanism; 9. Battery cell. DETAILED DESCRIPTION

[0035] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0038] Example 1

[0039] Please refer to Figures 1 to 9The embodiment of the utility model is realized by the following technical scheme: a core closing device for a battery cell 9, comprising: a core closing assembly 3, the core closing assembly 3 comprises two clamps 31 each provided with a flip driving member 32, the two clamps 31 can be synchronously flipped in the vertical direction, each clamp 31 is provided with at least one first clamp 311 matching with the pole piece, so that the pole pieces of at least two first clamps 311 are pressed together to complete the core closing action to form a battery cell 9; a pitch changing assembly 2, the pitch changing assembly 2 comprises a pitch changing mechanism 201, a swing auxiliary mechanism 202 and a clamping swing mechanism 203, an auxiliary groove 4 is opened below between the two clamps 31, and the swing auxiliary mechanism 202 includes a support 2021 and an auxiliary driving member 2022. Part of the support 2021 is located in the auxiliary groove 4 to support the battery cell 9 made of the core assembly 3, and the support 2021 can be driven by the auxiliary driving member 2022 to release the battery cell 9; the variable distance mechanism 201 has a variable distance space to limit and adjust the outer wall of the battery cell 9; the clamping and swinging mechanism 203 is located below the auxiliary groove 4, and the clamping and swinging mechanism 203 has a swingable clamping end to clamp the battery cell 9 into the variable distance space.

[0040] Further, the distance-changing mechanism 201 comprises a pad 2013, at least two first position-limiting members 2011, at least two movable second position-limiting members 2012 and a position-limiting member driving member, wherein the at least two first position-limiting members 2011 and the at least two movable second position-limiting members 2012 form a distance-changing space with the pad 2013 as the center; at least one first position-limiting member 2011 is driven to move by the position-limiting member driving member, and at least one first position-limiting member 2011 moves in a direction close to the pad 2013 and simultaneously drives at least two second position-limiting members 2012 to move in a direction close to the pad 2013;

[0041] Alternatively, at least one first position-limiting member 2011 moves away from the backing plate 2013 and simultaneously drives at least two second position-limiting members 2012 to move away from the backing plate 2013 .

[0042] Furthermore, it also includes a limiting slide rail 5 arranged at the bottom of the distance changing mechanism 201, the limiting slide rail 5 is perpendicular to the movement direction of the first limiting member 2011, and the two second limiting members 2012 are both slidably matched with the limiting slide rail 5;

[0043] The first limiting member 2011 is provided with two limiting connecting members 6 with inclined grooves 61, and the two second limiting members 2012 are both provided with sliding columns respectively slidingly matched with the two inclined grooves 61. When the first limiting member 2011 moves toward the pad 2013, the two second limiting members 2012 are simultaneously urged to move toward each other, that is, the two second limiting members 2012 are simultaneously urged to move toward the pad 2013 together.

[0044] Furthermore, the first clamp 311 includes a positioning member 3111 and a reciprocating clamping block 3112 , and the clamping block 3112 is driven by a clamping driving member 3113 to clamp or release the pole piece.

[0045] Furthermore, the clamping and swinging mechanism 203 includes a swinging clamping member 2031, a swinging driving member 2033 and a swinging lifting member 2032 for clamping the battery cell 9. The swinging lifting member 2032 drives the swinging driving member 2033 to move up and down. The swinging clamping member 2031 is arranged at the swinging end of the swinging driving member 2033 to clamp the battery cell 9 on the support 2021 and move it to the variable distance space.

[0046] Furthermore, the pitch-changing assembly 2 further includes a pitch-changing displacement mechanism 8 , and the pitch-changing mechanism 201 is disposed on a moving end of the pitch-changing displacement mechanism 8 to drive the pitch-changing mechanism 201 to reciprocate horizontally.

[0047] Furthermore, it also includes a feeding assembly 1, which includes a feeding lateral displacement mechanism 101, a feeding lifting mechanism 102, and a feeding clamping mechanism 103 for clamping the electrode piece; the feeding clamping mechanism 103 is arranged on the lifting end of the feeding lifting mechanism 102, and the feeding lateral displacement mechanism 101 drives the feeding lifting mechanism 102 to reciprocate horizontally;

[0048] The feeding clamping mechanism 103 includes at least one group of clamping arms 1031 and a grabbing drive 1032 for driving each group of clamping arms 1031 to open or close. Each group of clamping arms 1031 includes two clamping arms 1031 arranged opposite to each other. Each clamping arm 1031 has a liftable rubber-coated clamping jaw 10311 and a liftable rubber-coated clamping pad 10312. The rubber-coated clamping jaw 10311 and the rubber-coated clamping pad 10312 are used to cooperate with one end of the clamping pole piece.

[0049] Furthermore, the rubber-coated clamping jaw 10311 includes a first section structure and a second section structure connected from top to bottom, the second section structure is horizontally arranged, and the rubber-coated clamping pad 10312 is located above the second section structure.

[0050] Furthermore, it also includes a first detection mechanism 7 for detecting the quality of the pole piece, and the first detection mechanism 7 is arranged on the feeding clamping mechanism 103 .

[0051] Furthermore, a rotating motor 104 is provided on the top of each feeding clamping mechanism 103 to drive the rotation thereof.

[0052] The working principle of this utility model:

[0053] The feeding lateral displacement mechanism 101 of the present application can be composed of a linear module, and the moving end of the feeding lateral displacement mechanism 101 can drive the feeding lifting mechanism 102 to move back and forth. Figure 1As shown, the lifting end of the feeding lifting mechanism 102 can drive the feeding clamping mechanism 103 to move up and down reciprocatingly, so the vertical height and horizontal position of the feeding clamping mechanism 103 can be adjusted. In addition, the angle of the feeding clamping mechanism 103 can be adjusted by the rotating motor 104. The rotating motor 104 is arranged at the top of the feeding clamping mechanism 103 to individually adjust the horizontal rotation angle of the feeding clamping mechanism 103. Each group of clamping arms 1031 of the feeding clamping mechanism 103 can be composed of two relative clamping arms 1031, or four clamping arms 1031 can be arranged in pairs. The first detection mechanism 7 is arranged between the two clamping arms 1031 of each group, or it can be arranged directly below the grab driving member 1032, that is, the middle of each feeding clamping mechanism 103. The grab driving member 1032 can simultaneously drive the two clamping arms 1031 in the same group to move in a direction away from the first detection mechanism 7. That is, opening action or releasing action of battery cell 9, the grab driving member 1032 can simultaneously drive the two clamping arms 1031 in the same group to move in the direction close to the first detection mechanism 7, that is, closing action or clamping action of battery cell 9, the rubber-coated clamping jaw 10311 and the rubber-coated clamping pad 10312 both have separate lifting elements, and telescopic mechanisms such as micro cylinders can be selected; the rubber-coated clamping jaw 10311 and the rubber-coated clamping pad 10312 are both provided with elastic layers or rubber-coated layers to protect the clamped pole piece or battery cell 9. In this embodiment, the rubber-coated clamping jaw 10311 is an L-shaped structure, and the second section structure of the rubber-coated clamping jaw 10311 can pass through the air-avoiding groove of the clamping block 3112 or the positioning member 3111 to hold the bottom of the battery cell 9 or the pole piece tightly, and the rubber-coated clamping pad 10312 descends to press the bottom of the battery cell 9 or the pole piece, thereby realizing the anti-loosening clamping of the battery cell 9 or the pole piece to avoid falling during the transfer or loading process. The pole piece of the feeding clamping mechanism 103 is transferred to the first clamp 311 of the clamp 31. The flip driving member 32 can be a motor, and its power output end drives the clamp 31 to flip synchronously in the vertical direction. The two side-by-side clamps 31 flip 90 degrees in the opposite direction respectively, thereby driving the pole pieces of the two first clamps 311 (in a vertical state) to complete the core closing action. Figure 2As shown in the battery cell 9 on the left, the matched battery cell is in a vertical state. After the two clamps 31 are in the process of fitting or separation, the bottom of the battery cell 9 is held tightly by the support 2021 that partially passes through the auxiliary groove 4 below. At this time, the swing lifting member 2032 drives the swing driving member 2033 to rise, and the swing clamping member 2031 clamps the battery cell 9 on the support 2021. The auxiliary driving member 2022 drives the support 2021 away from the battery cell 9, so that the battery cell 9 can be driven by the swing clamping member 2031 to move downward through the auxiliary groove 4. After the battery cell 9 passes through the auxiliary groove 4, the swing driving member 2033 drives the swing clamping member 2031 to swing 90 degrees. The battery cell 9 falls into the variable distance space of the variable distance mechanism 201, and the limit member driving member drives one of the first limit members 2011 to be close to the battery cell 9 and simultaneously drives the two opposite second limit members 2012 to be close to the other two sides of the battery cell 9. The other first limit member 2011 is fixedly arranged, and then one first limit member 2011 moves in the direction of the other fixed first limit member 2011 (i.e., moves closer to the pad 2013), so that the battery cell 9 is aligned and adjusted on all sides (the outer wall of the battery cell 9 is limited and adjusted), so as to start the subsequent processes of the battery cell 9, such as the gluing process. The variable distance displacement mechanism 8 is a linear module, and its moving end can drive the variable distance displacement mechanism 201 to move back and forth along the linear direction of the variable distance displacement mechanism 8, so that the position matches the position after the clamping swing mechanism 203 swings and is convenient for transportation after receiving the materials. Figure 2 , Figure 3 As shown, the pad 2013, the clamping block 3112, and the positioning member 3111 are all provided with air avoidance grooves to facilitate the hooking of the clamping arm 1031. Figure 4 In the figure, the arrow direction is the direction in which the battery core 9 is swung by the clamping and swinging mechanism 203.

[0054] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A battery cell assembling device, characterized in that: include: A core closing assembly, wherein the core closing assembly comprises two clamps each provided with a flipping driving member, the two clamps can be synchronously flipped in opposite directions in the vertical direction, and each clamp is provided with at least one first clamp matching with the pole piece, so that the pole pieces of at least two of the first clamps are pressed together to complete the core closing action to form a battery cell; A pitch-changing assembly, the pitch-changing assembly includes a pitch-changing mechanism, a swing-assisting mechanism and a clamping and swinging mechanism, an auxiliary groove is provided below the two clamps, the swing-assisting mechanism includes a support and an auxiliary driving member, part of the support is located in the auxiliary groove to support the battery cell made of the core assembly, and the support can be driven by the auxiliary driving member to release the battery cell; the pitch-changing mechanism package has a pitch-changing space to limit and adjust the outer wall of the battery cell; the clamping and swinging mechanism is located below the auxiliary groove, and the clamping and swinging mechanism has a swingable clamping end to clamp the battery cell into the pitch-changing space.

2. A battery cell assembly device according to claim 1, characterized in that: The distance-changing mechanism comprises a pad, at least two first limiters, at least two movable second limiters and a limiter driving member, wherein the at least two first limiters and at least two movable second limiters surround the distance-changing space with the pad as the center; At least one of the first limiting members is driven by the limiting member driving member to move, and at least one of the first limiting members moves toward the backing plate and simultaneously drives at least two of the second limiting members to move toward the backing plate; Alternatively, at least one of the first limiting members moves away from the backing plate and simultaneously drives at least two second limiting members to move away from the backing plate.

3. A battery cell assembling device according to claim 2, characterized in that: It also includes a limiting slide rail arranged at the bottom of the distance changing mechanism, the limiting slide rail is perpendicular to the movement direction of the first limiting member, and the two second limiting members are both slidably matched with the limiting slide rail; The first limit member is provided with two limit connecting members with inclined grooves, and the two second limit members each have a slide column respectively slidably matched with the two inclined grooves. When the first limit member moves toward the pad, the two second limit members are simultaneously urged to move closer to each other.

4. The battery cell assembly device according to claim 1, characterized in that: The first clamp comprises a positioning member and a reciprocating clamping block, and the clamping block is driven by a clamping driving member to clamp or release the pole piece.

5. A battery cell assembly device according to claim 4, characterized in that: The clamping and swinging mechanism includes a swinging clamping member, a swinging driving member and a swinging lifting member for clamping the battery cell. The swinging lifting member drives the swinging driving member to move up and down. The swinging clamping member is arranged at the swinging end of the swinging driving member to clamp the battery cell on the support and move it to the variable distance space.

6. The battery cell assembly device according to claim 1, characterized in that: The variable pitch assembly further includes a variable pitch displacement mechanism, and the variable pitch mechanism is arranged on the moving end of the variable pitch displacement mechanism to drive the variable pitch mechanism to move horizontally back and forth.

7. The battery cell assembly device according to claim 1, characterized in that: It also includes a feeding assembly, which includes a feeding lateral displacement mechanism, a feeding lifting mechanism, and a feeding clamping mechanism for clamping the pole piece; the feeding clamping mechanism is arranged on the lifting end of the feeding lifting mechanism, and the feeding lateral displacement mechanism drives the feeding lifting mechanism to reciprocate horizontally; The feeding clamping mechanism includes at least one group of clamping arms and a grabbing drive member for driving each group of the clamping arms to open or close, each group of the clamping arms includes two clamping arms arranged opposite to each other, each clamping arm has a liftable rubber-coated clamping jaw and a liftable rubber-coated clamping pad, the rubber-coated clamping jaw and the rubber-coated clamping pad are used to cooperate in clamping one end of the pole piece.

8. A battery cell assembling device according to claim 7, characterized in that: The rubber-coated clamping jaw comprises a first section structure and a second section structure connected from top to bottom, the second section structure is arranged horizontally, and the rubber-coated clamping pad is located above the second section structure.

9. The battery cell assembly device according to claim 7, characterized in that: It also includes a first detection mechanism for detecting the quality of the pole piece, and the first detection mechanism is arranged on the feeding clamping mechanism.

10. The battery cell assembly device according to claim 7, characterized in that: A rotating motor for driving the feeding and clamping mechanism to rotate is arranged on the top of each feeding and clamping mechanism.

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