Inverted press-fitting device

Abstract

The utility model discloses an inverted press-fitting device. The inverted press-fitting device comprises a rack, a manipulator, a clamping mechanism and a press-fitting mechanism, wherein the clamping mechanism is used for clamping and fixing a top cover of a battery cell, the press-fitting mechanism is installed on the rack and arranged above the clamping mechanism, the press-fitting mechanism and the clamping mechanism are oppositely arranged, and a body of the battery cell faces the press-fitting mechanism; the manipulator has a clamping state and a releasing state, and in the clamping state, the manipulator clamps the aluminum shell and places the aluminum shell above the battery cell; in the release state, the manipulator releases the aluminum shell; and the press-fitting mechanism comprises a press-fitting assembly, and the press-fitting assembly is used for pushing the aluminum shell to move towards the clamping mechanism, so that the body of the battery cell is pressed into the aluminum shell. Through the arrangement, the problem that the production quality of current battery assembly is not high is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to an inverted pressing device. Background Art

[0002] In the process of manufacturing lithium batteries, the battery cells need to be placed in aluminum shells to assemble into complete batteries. The battery cells generally have a top cover. At present, the conventional assembly method of the aluminum shell and the battery cells is generally to place the poles of the top cover upwards. During installation, the aluminum shell moves from bottom to top, and the opening of the aluminum shell is set toward the battery cell. In this way, the body of the battery cell is pressed into the aluminum shell to complete the assembly of the battery.

[0003] However, during the pushing process, the aluminum shell is affected by its own gravity, and there is a high probability of pressing deviation during the assembly process, which makes the exposed edge of the aluminum shell easy to collide with the battery cell, resulting in a high risk of damage to the battery cell, affecting the assembly quality of the battery. Utility Model Content

[0004] The utility model mainly provides an inverted press-fitting device to solve the problem of low quality of current battery assembly production.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes an inverted press-fitting device, which includes a frame, a manipulator, a clamping mechanism and a press-fitting mechanism; wherein,

[0006] The clamping mechanism is used to clamp and fix the top cover of the battery cell, the pressing mechanism is installed on the frame and arranged above the clamping mechanism, the pressing mechanism and the clamping mechanism are arranged opposite to each other, and the body of the battery cell faces the pressing mechanism;

[0007] The manipulator has a clamping state and a releasing state. In the clamping state, the manipulator clamps the aluminum shell and places the aluminum shell on the battery core; in the releasing state, the manipulator releases the aluminum shell;

[0008] The press-fitting mechanism comprises a press-fitting assembly, and the press-fitting assembly is used to push the aluminum shell to move toward the clamping mechanism so that the body of the battery core is pressed into the aluminum shell.

[0009] In some embodiments of the present invention, the press-fit assembly includes a mounting piece and a press-fit piece, the press-fit piece includes a mounting body and a press-fit body, the mounting body is fixedly connected to the mounting piece and is stacked with the mounting piece, the press-fit body is connected to the mounting body, the press-fit body extends away from the mounting body and is perpendicular to the mounting body.

[0010] In some embodiments of the present invention, a plurality of crimping parts are provided at one end of the press-fit body away from the mounting body, the plurality of crimping parts are spaced apart along the width direction of the mounting body, and the plurality of crimping parts are also arranged side by side along the thickness direction of the mounting body.

[0011] In some embodiments of the present invention, the press-fit assembly further includes a first protective member and a second protective member, both of which are connected to the mounting body, the first protective member is distributed on either end of the press-fit body along its width direction, and the second protective member is distributed on either end of the press-fit body along its thickness direction;

[0012] In the vertical direction, the first protective member is arranged higher than the second protective member, and both the first protective member and the second protective member are used to protect the press-fitted body.

[0013] In some embodiments of the utility model, the pressing mechanism also includes a driving member and a connecting member, the frame has a mounting surface, the driving member is mounted on the mounting surface, one end of the connecting member is connected to the driving member, and the other end passes through the mounting surface and is detachably connected to the pressing assembly, and the driving member drives the pressing assembly to move in the vertical direction through the connecting member.

[0014] In some embodiments of the present invention, the press-fitting mechanism further includes a guide assembly, one end of which is movably connected to the frame, and the other end is connected to the press-fitting assembly, and the guide assembly is used to guide the movement of the press-fitting assembly.

[0015] In some embodiments of the present utility model, the clamping mechanism includes a first clamping module, the first clamping module includes a power member, a first long side clamping member and a second long side clamping member, the first long side clamping member and the second long side clamping member are both connected to the power member, the first long side clamping member is provided with a first long side clamping portion, and the second long side clamping member is provided with a second long side clamping portion;

[0016] The power member is used to drive the first long side clamping member and the second long side clamping member to move closer to or farther away from each other, so that the first long side clamping portion and the second long side clamping portion jointly clamp or release the long side of the top cover of the battery cell.

[0017] In some embodiments of the utility model, the clamping mechanism includes two second clamping modules, one of the two second clamping modules is arranged on the first long side clamping member and moves with the first long side clamping member, and the other of the two second clamping modules is arranged on the second long side clamping member and moves with the second long side clamping member, and the two second clamping modules are used to jointly clamp or release the short side of the top cover of the battery cell.

[0018] In some embodiments of the present invention, the second clamping module includes a first servo motor, a first short side clamping member, a second servo motor and a second short side clamping member;

[0019] The first servo motor and the second servo motor are arranged side by side, the first short side clamping piece is connected to the first servo motor, and the second short side clamping piece is connected to the second servo motor. The first servo motor is used to drive the first short side clamping piece to approach or move away from the first long side clamping piece, and the second servo motor is used to drive the second short side clamping piece to approach or move away from the first long side clamping piece, so that the first short side clamping piece and the second short side clamping piece jointly clamp or release the short side of the top cover of the battery cell.

[0020] In some embodiments of the present invention, the first short side clamp has a first stop portion, and the second short side clamp has a second stop portion, and the first stop portion and the second stop portion cooperate to limit the movement stroke of the first short side clamp and the second short side clamp.

[0021] The beneficial effect of the utility model is as follows: different from the prior art, the inverted pressing device disclosed in the utility model inverts the aluminum shell above the battery cell through a manipulator, that is, the opening of the aluminum shell faces the battery cell, and pushes the aluminum shell toward the battery cell through a pressing assembly, so that the body of the battery cell can be pressed into the aluminum shell. In this way, the battery is assembled by pushing the aluminum shell down, and the deviation can be effectively reduced during the pressing process of the aluminum shell, avoiding the collision between the open edge of the aluminum shell and the battery cell, reducing the risk of damage to the battery cell, and thus improving the assembly quality of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the inverted press-fitting device of the utility model;

[0024] Figure 2 It is a schematic diagram of the planar structure of an embodiment of the inverted press-fitting device of the utility model from one viewing angle;

[0025] Figure 3 It is a schematic plan view of the structure of an inverted press-fitting device according to another embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of an embodiment of a press-fit assembly and a guide assembly of the utility model;

[0027] Figure 5 It is a structural schematic diagram of an embodiment of the clamping mechanism of the utility model.

[0028] Description of Figure Numbers:

[0029] 100, inverted press-fitting device; 1, frame; 11, mounting surface; 2, clamping mechanism; 21, first clamping module; 211, power member; 212, first long side clamping member; 2121, first long side clamping portion; 213, second long side clamping member; 2131, second long side clamping portion; 22, second clamping module; 221, first servo motor; 222, first short side clamping member; 2221, first stopper; 223, second servo motor; 224, second short side clamping member; 2241, second stop portion; 3, press-fitting mechanism; 31, press-fitting assembly; 311, mounting member; 3111, hook; 312, press-fitting member; 3121, mounting body; 3122, press-fitting body; 3123, crimping portion; 313, first protective member; 314, second protective member; 32, driving member; 33, connecting member; 331, locking block; 34, guide assembly; 341, slide seat; 342, guide rod.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] The utility model provides an inverted press-fitting device, referring to Figures 1 to 5 The inverted press-fitting device 100 includes a frame 1, a manipulator (not shown in the figure), a clamping mechanism 2 and a press-fitting mechanism 3. The clamping mechanism 2 is used to clamp and fix the top cover of the battery cell, and the press-fitting mechanism 3 is installed on the frame 1 and arranged above the clamping mechanism 2. The press-fitting mechanism 3 is arranged opposite to the clamping mechanism 2, and the body of the battery cell faces the press-fitting mechanism 3.

[0035] The manipulator has a clamping state and a releasing state. In the clamping state, the manipulator clamps the aluminum shell and places the aluminum shell on the battery cell; in the releasing state, the manipulator releases the aluminum shell. The pressing mechanism 3 includes a pressing assembly 31, which is used to push the aluminum shell toward the clamping mechanism 2 so that the body of the battery cell is pressed into the aluminum shell.

[0036] Based on the above-mentioned scheme, the aluminum shell is inverted above the battery cell by a robot, that is, the opening of the aluminum shell faces the battery cell, and the aluminum shell is pushed toward the battery cell by the pressing assembly 31, so that the body of the battery cell can be pressed into the aluminum shell. In this way, the battery is assembled by pushing the aluminum shell down. During the pressing process of the aluminum shell, the deviation can be effectively reduced, the open edge of the aluminum shell can be avoided from colliding with the battery cell, the risk of damage to the battery cell is reduced, and the assembly quality of the battery is improved.

[0037] Reference Figures 1 to 5 The press-fitting assembly 31 includes a mounting member 311 and a press-fitting member 312. The press-fitting member 312 includes a mounting body 3121 and a press-fitting body 3122. The mounting body 3121 is fixedly connected to the mounting member 311 and is stacked with the mounting member 311. The press-fitting body 3122 is connected to the mounting body 3121. The press-fitting body 3122 extends away from the mounting body 3121 and is vertically arranged with the mounting body 3121.

[0038] The press-fitting body 3122 and the mounting body 3121 can be integrally formed, and the mounting body 3121 is plate-shaped, and the mounting body 3121 is fixed to the mounting member 311 by bolts, so as to facilitate the installation of the press-fitting member 312. Such a configuration enables the press-fitting member 312 to stably press the aluminum shell, and the aluminum shell is not easy to shake, thereby reducing the possibility of collision between the aluminum shell and the battery cell.

[0039] The mounting member 311 may be a mounting plate or a mounting bracket.

[0040] The end of the press-fit body 3122 away from the mounting body 3121 is provided with a plurality of crimping parts 3123, which are spaced apart along the width direction of the mounting body, and are also arranged side by side along the thickness direction of the mounting body. With such arrangement, during the process of press-fitting the aluminum shell, the aluminum shell is pressed against by the plurality of crimping parts 3123, so that the force on the aluminum shell as a whole is balanced, so that the body of the battery cell can be accurately pressed into the aluminum shell, thereby improving the assembly quality of the battery.

[0041] The crimping portion 3123 is arranged in a plane toward the end surface of the battery core, and the crimping portion 3123 may be a crimping bump or a crimping cylinder.

[0042] The press-fit assembly 31 further includes a first protective member 313 and a second protective member 314. The first protective member 313 and the second protective member 314 are both connected to the mounting body 3121. The first protective member 313 is distributed on either end of the press-fit body 3122 along its width direction, and the second protective member 314 is distributed on either end of the press-fit body 3122 along its thickness direction. In the vertical direction, the first protective member 313 is arranged higher than the second protective member 314. The first protective member 313 and the second protective member 314 are both used to protect the press-fit body 3122.

[0043] During the press-fitting process, the first protective member 313 and the second protective member 314 effectively protect the press-fitting body 3122 to prevent the press-fitting body 3122 from colliding with other structures, thereby better protecting the press-fitting body 3122 and extending the service life of the press-fitting body 3122.

[0044] The first protective member 313 and the second protective member 314 can both protect sheet metal or other structural members with anti-collision performance, such as a silicone structure or a rubber structure.

[0045] Continue to refer to Figures 1 to 5 The pressing mechanism 3 also includes a driving member 32 and a connecting member 33. The frame 1 has a mounting surface 11. The driving member 32 is mounted on the mounting surface 11. One end of the connecting member 33 is connected to the driving member 32, and the other end passes through the mounting surface 11 and is detachably connected to the pressing assembly 31. The driving member 32 drives the pressing assembly 31 to move in the vertical direction through the connecting member 33.

[0046] A hook 3111 is provided on one side of the mounting member 311 away from the mounting body 3121, and a locking block 331 is provided on the connecting member 33. The locking block 331 is locked with the hook 3111 to connect the mounting member 311 and the connecting member 33. During the press-fitting process, the driving member 32 drives the mounting member 311 to move through the connecting member 33, and then drives the pressing member 312 to move, so as to press-fit the aluminum shell.

[0047] The press-fitting mechanism 3 further includes a guide assembly 34 , one end of which is movably connected to the frame 1 , and the other end of which is connected to the press-fitting assembly 31 . The guide assembly 34 is used to guide the movement of the press-fitting assembly 31 .

[0048] The guide assembly 34 may include a plurality of slides 341 and a plurality of guide rods 342. The plurality of slides 341 are mounted on the frame 1. Each guide rod 342 is inserted through a corresponding slide 341. The plurality of guide rods 342 are guided and slidably matched with the corresponding slides 341. The plurality of guide rods 342 are arranged around the connecting member 33. One end of the guide rod 342 is fixedly connected to the mounting member 311, and the other end is movably matched with the slide 341.

[0049] Under the action of multiple guide rods 342, the driving member 32 can guide and drive the installation member 311 to move through the connecting member 33, thereby guiding the movement of the pressing member 312, so that the pressing member 312 can stably press the aluminum shell, thereby improving the quality of the assembled battery.

[0050] Continue to refer to Figures 1 to 5 The clamping mechanism 2 includes a first clamping module 21, the first clamping module 21 includes a power piece 211, a first long side clamping piece 212 and a second long side clamping piece 213, the first long side clamping piece 212 and the second long side clamping piece 213 are both connected to the power piece 211, the first long side clamping piece 212 is provided with a first long side clamping portion 2121, and the second long side clamping piece 213 is provided with a second long side clamping portion 2131.

[0051] The power member 211 is used to drive the first long side clamping member 212 and the second long side clamping member 213 to move closer to or away from each other, so that the first long side clamping portion 2121 and the second long side clamping portion 2131 jointly clamp or release the long side of the top cover of the battery cell.

[0052] The power member 211 can be a servo motor or a linear motor. The first long side clamping member 212 and the second long side clamping member 213 are both plate structures, and the plate structure is bent to form a first long side clamping portion 2121 and a second long side clamping portion 2131. The first long side clamping portion 2121 and the second long side clamping portion 2131 can stably clamp the top cover of the battery cell, thereby improving the stability of clamping the battery cell.

[0053] The clamping mechanism 2 includes two second clamping modules 22, one of the two second clamping modules 22 is arranged on the first long side clamping member 212 and moves with the first long side clamping member 212, and the other of the two second clamping modules 22 is arranged on the second long side clamping member 213 and moves with the second long side clamping member 213. The two second clamping modules 22 are used to jointly clamp or release the short side of the top cover of the battery cell.

[0054] The second clamping module 22 includes a first servo motor 221, a first short side clamping member 222, a second servo motor 223 and a second short side clamping member 224. The first servo motor 221 and the second servo motor 223 are arranged side by side, the first short side clamping member 222 is connected to the first servo motor 221, and the second short side clamping member 224 is connected to the second servo motor 223. The first servo motor 221 is used to drive the first short side clamping member 222 to approach or move away from the first long side clamping member 212, and the second servo motor 223 is used to drive the second short side clamping member 224 to approach or move away from the first long side clamping member 212, so that the first short side clamping member 222 and the second short side clamping member 224 can clamp or release the short side of the top cover of the battery cell together.

[0055] The first short side clamping member 222 and the second short side clamping member 224 may both be clamping plates or clamping blocks.

[0056] The first short side clamping member 222 has a first stop portion 2221 , and the second short side clamping member 224 has a second stop portion 2241 . The first stop portion 2221 and the second stop portion 2241 cooperate with each other to limit the movement strokes of the first short side clamping member 222 and the second short side clamping member 224 .

[0057] With such arrangement, when the first short side clamping member 222 and the second short side clamping member 224 approach each other to clamp the short side of the top cover of the battery cell, the first stop portion 2221 and the second stop portion 2241 stop each other, thereby limiting the moving stroke of the first short side clamping member 222 and the second short side clamping member 224. On the one hand, it can effectively avoid the situation where the first short side clamping member 222 and the second short side clamping member 224 excessively clamp the battery cell and cause the battery cell to be damaged. On the other hand, it can well protect the first short side clamping member 222 and the second short side clamping member 224, effectively avoiding the first short side clamping member 222 and the second short side clamping member 224 from colliding, thereby improving the stability and reliability of clamping the battery cell and improving the quality of assembled batteries.

[0058] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An inverted press-fitting device, characterized in that: The inverted press-fitting device comprises a frame, a manipulator, a clamping mechanism and a press-fitting mechanism; wherein, The clamping mechanism is used to clamp and fix the top cover of the battery cell, the pressing mechanism is installed on the frame and arranged above the clamping mechanism, the pressing mechanism and the clamping mechanism are arranged opposite to each other, and the body of the battery cell faces the pressing mechanism; The manipulator has a clamping state and a releasing state. In the clamping state, the manipulator clamps the aluminum shell and places the aluminum shell on the battery core; in the releasing state, the manipulator releases the aluminum shell; The press-fitting mechanism comprises a press-fitting assembly, and the press-fitting assembly is used to push the aluminum shell to move toward the clamping mechanism so that the body of the battery core is pressed into the aluminum shell.

2. The inverted press-fitting device according to claim 1, characterized in that: The press-fit assembly includes a mounting part and a press-fit part, and the press-fit part includes a mounting body and a press-fit body. The mounting body is fixedly connected to the mounting part and is stacked with the mounting part. The press-fit body is connected to the mounting body, and the press-fit body extends away from the mounting body and is perpendicular to the mounting body.

3. The inverted press-fitting device according to claim 2, characterized in that: A plurality of crimping parts are arranged at one end of the press-fit body away from the mounting body. The plurality of crimping parts are distributed at intervals along the width direction of the mounting body and are also arranged side by side along the thickness direction of the mounting body.

4. The inverted press-fitting device according to claim 2, characterized in that: The press-fit assembly further includes a first protective member and a second protective member, both of which are connected to the mounting body, the first protective member is distributed on either end of the press-fit body along its width direction, and the second protective member is distributed on either end of the press-fit body along its thickness direction; In the vertical direction, the first protective member is arranged higher than the second protective member, and both the first protective member and the second protective member are used to protect the press-fitted body.

5. The inverted press-fitting device according to claim 1, characterized in that: The press-fitting mechanism also includes a driving member and a connecting member. The frame has a mounting surface, the driving member is mounted on the mounting surface, one end of the connecting member is connected to the driving member, and the other end passes through the mounting surface and is detachably connected to the press-fitting assembly. The driving member drives the press-fitting assembly to move in the vertical direction through the connecting member.

6. The inverted press-fitting device according to claim 5, characterized in that: The press-fitting mechanism further comprises a guide assembly, one end of which is movably connected to the frame, and the other end of which is connected to the press-fitting assembly, and the guide assembly is used to guide the movement of the press-fitting assembly.

7. The inverted press-fitting device according to claim 1, characterized in that: The clamping mechanism comprises a first clamping module, the first clamping module comprises a power member, a first long side clamping member and a second long side clamping member, the first long side clamping member and the second long side clamping member are both connected to the power member, the first long side clamping member is provided with a first long side clamping portion, and the second long side clamping member is provided with a second long side clamping portion; The power member is used to drive the first long side clamping member and the second long side clamping member to move closer to or farther away from each other, so that the first long side clamping portion and the second long side clamping portion jointly clamp or release the long side of the top cover of the battery cell.

8. The inverted press-fitting device according to claim 7, characterized in that: The clamping mechanism includes two second clamping modules, one of which is arranged on the first long side clamping member and moves with the first long side clamping member, and the other of the two second clamping modules is arranged on the second long side clamping member and moves with the second long side clamping member. The two second clamping modules are used to jointly clamp or release the short side of the top cover of the battery cell.

9. The inverted press-fitting device according to claim 8, characterized in that: The second clamping module comprises a first servo motor, a first short side clamping member, a second servo motor and a second short side clamping member; The first servo motor and the second servo motor are arranged side by side, the first short side clamping piece is connected to the first servo motor, and the second short side clamping piece is connected to the second servo motor. The first servo motor is used to drive the first short side clamping piece to approach or move away from the first long side clamping piece, and the second servo motor is used to drive the second short side clamping piece to approach or move away from the first long side clamping piece, so that the first short side clamping piece and the second short side clamping piece jointly clamp or release the short side of the top cover of the battery cell.

10. The inverted press-fitting device according to claim 9, characterized in that: The first short side clamping piece has a first stop portion, and the second short side clamping piece has a second stop portion. The first stop portion and the second stop portion cooperate to limit the movement strokes of the first short side clamping piece and the second short side clamping piece.

Images