CN110581298A - Press mounting method and press mounting system for arranging battery cell into shell - Google Patents
Press mounting method and press mounting system for arranging battery cell into shell Download PDFInfo
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- CN110581298A CN110581298A CN201910738490.8A CN201910738490A CN110581298A CN 110581298 A CN110581298 A CN 110581298A CN 201910738490 A CN201910738490 A CN 201910738490A CN 110581298 A CN110581298 A CN 110581298A
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- casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/005—Devices for making primary cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a press mounting method and a press mounting system for a battery cell to be placed in a shell, wherein the press mounting method comprises the following steps: horizontally pre-pressing the battery cell and the shell to enable a guide area of a top cover of the battery cell to enter the shell; and transferring the horizontally pre-pressed battery cell and the shell, and performing vertical press fitting to enable the body of the top cover to enter the shell, so as to complete the shell-entering press fitting of the battery cell. The method for press mounting the battery cell into the shell effectively avoids the problem of battery cell scrapping caused by the defects, improves the stability and efficiency of press mounting the battery cell into the shell, and improves the excellent rate of the battery cell.
Description
Technical Field
The invention relates to the technical field of automatic production of batteries, in particular to a press-fitting method and a press-fitting system for a battery core to be placed in a shell.
background
In the existing technology for embedding the battery core into the shell, the following two modes, namely horizontal press mounting and vertical press mounting, are generally adopted.
During horizontal pressure equipment, the aluminum hull is all laid with electric core and is placed, fixes a position the aluminum hull and makes it motionless, and the translation cylinder through electric core upper cover side promotes the top cap and removes to the shell mouth direction of aluminum hull, until with electric core pressure equipment to inside the aluminum hull, makes top cap and aluminum hull assembly reach both and carry out laser welding's requirement. But because the body thickness dimension of top cap is higher than the electric core on the electric core, when carrying out horizontal pressure equipment, above-mentioned thickness difference can lead to the shell mouth position centering poor problem of top cap and aluminum hull, influences the pressure equipment quality, can lead to the battery to scrap when serious. In addition, in the process from the horizontal press fitting to the transfer welding, the top cover is also popped out of the aluminum shell.
When in vertical press mounting, the aluminum shell and the battery cell are both vertically placed, the shell opening of the aluminum shell is upward, and the periphery of the aluminum shell is positioned by the arranging cylinder; the battery cell is placed right above the aluminum shell, and the vertically arranged cylinder drives the push plate to press the top cover downwards until the battery cell is pressed into the aluminum shell; before the push plate moves upwards, a pair of pressing claws extends out of two sides of the aluminum shell to fix the top cover and the aluminum shell, so that the top cover and the aluminum shell are assembled to meet the requirement of laser welding between the top cover and the aluminum shell. However, due to the influence of the self gravity of the battery cell, the top cover on the battery cell can partially sink into the aluminum shell, and the steps of the top cover and the aluminum shell exceed the standard rework rate after press mounting.
Disclosure of Invention
The invention aims to provide a method and a system for pressing a battery cell into a shell, which aim to solve the technical problems of poor stability and low efficiency of pressing the battery cell into the shell caused by horizontal pressing and vertical pressing in the prior art.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a press mounting method for a battery cell to be placed in a shell, which comprises the following steps: horizontally pre-pressing the battery cell and the shell to enable a guide area of a top cover of the battery cell to enter the shell; and transferring the electric core and the shell after horizontal pre-press mounting and carrying out vertical press mounting, so that the body of the top cover enters the shell, and the shell entering press mounting of the electric core is completed.
Further, the step of carrying out horizontal pre-press fitting on the battery cell and the shell specifically comprises: positioning the housing; pushing the cell toward the housing and defining a depth of entry of the cell into the housing such that the guide region of the cap enters the housing.
Further, the sub-step of positioning the housing specifically includes: adsorbing and positioning the bottom of the shell; and clamping and positioning the side part of the shell.
Further, in the step of pushing the battery cell to the housing, the battery cell is guided so that the body of the top cover is aligned with the opening of the housing.
Furthermore, in the step of transferring the battery cell and the shell after horizontal pre-press mounting and carrying out vertical press mounting, the body of the top cover is limited, so that the end face of the body of the top cover, which is far away from the guide area, is flush with the end face of the shell opening of the shell.
according to another aspect of the present invention, there is also provided a press-fitting system for housing a battery cell, including: the horizontal pre-pressing device is used for enabling a guide area of a top cover of the battery cell to enter the shell; the transfer device is used for transferring the electric core and the shell after horizontal pre-press mounting to vertical press mounting; and the vertical press-fitting device is used for enabling the body of the top cover to enter the shell.
furthermore, the horizontal pre-press-mounting device comprises a base, a positioning mechanism for fixing the shell, a pushing mechanism for pressing the battery cell into the shell and a limiting mechanism for limiting the depth of the battery cell entering the shell, wherein the positioning mechanism and the pushing mechanism are both arranged on the base; the limiting mechanism is arranged on the pushing mechanism to limit the pushing distance of the pushing mechanism.
further, push mechanism include with the first ejector pad of electricity core butt and promote the first driving piece that first ejector pad removed, stop gear is including installing in first locating part on the first driving piece is in order to adjust the degree of depth that the electricity core got into the casing.
Furthermore, the positioning mechanism comprises a positioning plate for placing the shell and an adsorption component for positioning the bottom of the shell, the adsorption component is mounted on the positioning plate, and the positioning plate is mounted on the base.
Furthermore, the locating plate comprises a bottom plate and a side plate, the bottom plate is provided with a locating surface for placing the shell in a lying mode, the adsorption component is installed on the side plate, and the bottom of the shell abuts against the side plate under the action of the adsorption component.
furthermore, a first step portion guiding the body of the top cover is arranged on the positioning plate close to the shell opening of the shell, and the inner wall surface of the lower side of the shell is flush with the upper end surface of the first step portion.
further, the horizontal pre-press mounting device comprises guide pieces for guiding the battery cell, and the guide pieces are respectively installed on two horizontal sides of the shell; the guide part comprises a guide plate and ribs arranged on the inner side of the guide plate, the ribs are provided with second step parts, the second step parts are abutted to the end face of the shell opening of the shell, and the body of the top cover moves to center the shell opening of the shell and enters the shell.
further, the vertical press-fitting device comprises a vertical platform, a pressing mechanism, a jacking mechanism for jacking the pre-pressed battery core and the casing, and a positioning assembly for fixing the casing, wherein the pressing mechanism and the positioning assembly are respectively arranged on the vertical platform; the pressing mechanism comprises a second pushing block, a second driving piece and a stopping portion, the second driving piece drives the second pushing block to move downwards, the stopping portion limits the moving distance of the second pushing block, the stopping portion is arranged at the lower end of the second pushing block, and the stopping portion is abutted to the top end of the positioning assembly to limit the movement of the second pushing block.
Furthermore, the positioning assembly comprises two positioning blocks which are symmetrically arranged, inclined guide parts are arranged on the inner sides of the positioning blocks, the shell is clamped between the two positioning blocks along the guide parts, and the top end of the shell is flush with the top ends of the positioning blocks; the stopping part is abutted against the top end of the positioning block to limit the movement of the second pushing block.
furthermore, the jacking mechanism comprises a jacking plate, a third driving piece used for driving the jacking plate and a second limiting piece used for limiting the moving distance of the jacking plate, and the second limiting piece is installed on the third driving piece so as to limit the top end of the shell to be flush with the top end of the positioning assembly.
The invention provides a method for pressing a battery cell into a shell, which comprises the steps of firstly carrying out horizontal pre-pressing on the battery cell to enable a guide area of a top cover to enter a shell, then transferring the battery cell and the shell together and carrying out vertical pressing, enabling a body of the top cover to enter the shell, and completing the pressing of the battery cell into the shell. According to the press-fitting method, the horizontal pre-press-fitting method and the vertical press-fitting method are sequentially utilized, so that the problems that the alignment degree of the top cover of the battery cell and the shell opening of the shell is poor and the top cover of the battery cell is easy to pop out of the shell when only horizontal press-fitting is used are solved, and meanwhile, the problem that the top cover of the battery cell is easy to sink into the shell and steps generated between the top cover and the shell exceed the standard when only vertical press-fitting is used is solved. The method for press mounting the battery cell into the shell effectively avoids the problem of battery cell scrapping caused by the defects, improves the stability and efficiency of press mounting the battery cell into the shell, and improves the excellent rate of the battery cell.
The press-mounting system for the battery cell into the shell comprises the horizontal type pre-press-mounting device, the transfer device and the vertical type press-mounting device, and the press-mounting steps of enabling the guide area of the top cover of the battery cell to enter the shell and enabling the body of the top cover to enter the shell are successively completed, so that the press-mounting of the battery cell into the shell can be effectively completed, the stability is good, and the press-mounting efficiency and the excellent rate of the battery cell are high.
Drawings
fig. 1 is a schematic structural diagram of a battery cell;
Fig. 2a is a schematic view of an assembly structure of a horizontal pre-press-fitted electrical core and a casing in the method for press-fitting an electrical core into a casing according to the embodiment of the present invention;
Fig. 2b is a schematic diagram of an assembly structure of the battery cell and the casing after vertical press-fitting in the press-fitting method for housing the battery cell according to the embodiment of the present invention;
Fig. 3 is a schematic structural diagram of a horizontal pre-press-fitting device in a press-fitting system for housing a battery cell provided in an embodiment of the present invention;
FIG. 4 is a schematic view of the positioning mechanism, the guide member and the housing of FIG. 3, wherein the suction assembly is omitted;
FIG. 5 is a schematic structural diagram of the positioning block in FIG. 4;
Fig. 6 is a schematic structural diagram of a neutral press-fitting device in a press-fitting system for housing a battery cell according to an embodiment of the present invention;
Fig. 7 is a schematic structural view of the pressing mechanism and the positioning assembly in fig. 5, wherein the second driving member is omitted.
Description of reference numerals:
100. An electric core; 110. a core body; 120. a top cover; 121. a body; 122. a guiding zone;
200. a housing;
300. A horizontal pre-pressing device;
310. A base;
320. a positioning mechanism; 321. positioning a plate; 3211. a base plate; 3211a, a first step; 3212. a side plate; 322. an adsorption component;
330. a pushing mechanism; 332. a first driving member;
340. a limiting mechanism; 341. a first limit piece;
350. A guide member; 351. a guide plate; 352. ribs; 3521. a second step portion;
400. A vertical press mounting device;
410. A vertical platform;
420. A pressing mechanism; 421. a second push block; 422. a second driving member; 423. a stopper portion;
430. A jacking mechanism; 431. a jacking plate; 432. a third driving member; 433. a second limiting member; 4331. a limiting plate; 4332. a limiting screw;
440. a positioning assembly; 441. positioning blocks; 4411. a guide portion; 442. a clamping cylinder; 443. and a third limiting member.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number or order of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
With reference to fig. 2a and 2b, an embodiment of the present application provides a method for press-fitting a battery cell into a case, including the following steps: horizontally pre-pressing the battery cell 100 and the shell 200 to enable the guide area 122 of the top cover 120 of the battery cell 100 to enter the shell 200; and transferring the horizontal pre-press-fitted battery cell 100 and the shell 200, and performing vertical press-fitting, so that the body 121 of the top cover 120 enters the shell 200, and thus the shell press-fitting of the battery cell 100 is completed. Referring to fig. 1, in the embodiment of the present application, a battery cell 100 includes a core 110 and a top cover 120, where the top cover 120 includes a body 121 and a guide region 122 connected to the body 121, and the core 110 is connected to the guide region 122; the housing 200 is typically an aluminum shell.
in the method for press-fitting a battery cell into a casing, the guide area 122 of the top cover 120 and the casing 200 are assembled by horizontal pre-press-fitting, and the top cover 120 is not completely pressed into the casing 200, that is, the body 121 of the top cover 120 does not enter the casing 200, so that the acting force between the casing 200 and the top cover 120 is small, and the phenomenon that the top cover 120 pops up due to a large acting force between the casing 200 and the top cover 120 can be effectively prevented. In addition, the horizontal pre-press mounting mode avoids the assembly of the maximum extrusion force area between the top cover 120 and the shell 200, namely the assembly of the body 121 of the top cover 120 and the shell 200, thereby greatly reducing the condition that the body 121 of the top cover 120 and the shell 200 are damaged due to poor alignment in the horizontal press mounting method in the prior art.
In the method for press-fitting a battery cell into a case according to the embodiment of the present application, after horizontal pre-press-fitting is completed, the pre-assembled battery cell 100 and the pre-assembled case 200 are transferred together and subjected to vertical press-fitting, and it can be understood that in the above-mentioned transfer process, the pre-press-fitting state of the battery cell 100 and the pre-assembled case 200 needs to be maintained. The horizontal pre-pressing assembly completes the assembly of the guide area 122 of the top cover 120 and the shell 200, a certain acting force exists between the top cover 120 and the shell 200, and on the premise of carrying out vertical pressing assembly, the phenomenon that a part of the body 121 of the top cover 120 sinks below the shell opening of the shell 200 due to the self gravity of the battery cell in the vertical pressing assembly method in the prior art can be effectively prevented, so that the condition of high rework rate is avoided, and the pressing assembly efficiency is greatly improved.
The method for press fitting of the battery cell into the shell effectively combines the horizontal pre-press fitting method and the vertical press fitting method, solves the problems that the alignment of the shell opening of the top cover 120 and the shell 200 is poor, the top cover 120 is easy to pop out of the shell 200 and the assembly step between the body 121 of the top cover 120 and the shell 200 exceeds the standard when the battery cell is pressed into the shell, effectively reduces the rework rate of the battery cell 100, improves the excellent rate of the press fitting of the battery cell into the shell, and fundamentally prevents the rejection of the battery cell 100.
In some embodiments, the step of performing horizontal pre-press-fitting on the battery cell 100 and the casing 200 specifically includes: positioning the housing 200; the battery cell 100 is pushed toward the casing 200, and the depth of the battery cell 100 into the casing 200 is defined, so that the guide region 122 of the top cover 120 enters the casing 200. In the horizontal pre-press-fitting process, the casing 200 is in a fixed state, and the battery cell 100 is pushed into the casing 200; in the pushing process of the battery cell 100, the limiting mechanism 340 limits that the battery cell 100 can only be pushed to a preset position in the casing 200; when the battery cell 100 is pushed to the predetermined position, the guide region 122 of the cap 120 is pressed into the casing 200, and the body 121 of the cap 120 does not enter the casing 200. At this time, the purpose of horizontal pre-pressing is achieved. By limiting the depth of the battery cell 100 entering the casing 200, the guide area 122 of the top cover 120 is ensured to completely enter the casing 200, the accuracy of horizontal pre-pressing is increased, a proper acting force is kept between the battery cell 100 and the casing 200, and the phenomena of ejection and poor centering degree of the top cover 120 are avoided.
As can be understood, the method for fixing the housing 200 may be variously selected, and in the embodiment of the present application, the sub-step of positioning the housing 200 specifically includes: adsorbing and positioning the bottom of the shell 200; the side of the housing 200 is clamped in place. The bottom and the side of the casing 200 are positioned, so that the casing 200 can be fixed in the process of pushing the battery cell 100 into the casing 200, and the horizontal pre-press-fitting efficiency is improved. The clamping position of the absorption location of casing 200 bottom and lateral part can cooperate well, on the one hand, the structure with positioning mechanism 320 is complicated when having avoided bottom and lateral part to all adopt the centre gripping location, on the other hand not only can guarantee the fixed of casing 200 to the absorption of casing 200 bottom, can also control the orientation of putting of casing 200 relatively easily, specifically, can fix casing 200 on the bottom plate 3211 of locating plate 321 through adsorbing, the bottom of casing 200 and the curb plate 3212 butt of locating plate 321, more be favorable to casing 200's shell mouth orientation unchangeable, thereby press in casing 200 with electric core 100 smoothly more high-efficiently.
in some embodiments, in the step of pushing the battery cell 100 toward the casing 200, the battery cell 100 is guided so that the body 121 of the top cover 120 is aligned with the opening of the casing 200. The thickness dimension of the body 121 of the top cover 120 is higher than that of the core 110 of the battery cell 100, and in the case that the casing 200 and the battery cell 100 are both laid flat and the casing 200 is fixed, the height difference may cause poor alignment between the body 121 of the top cover 120 and the shell opening of the casing 200 during the process of pushing the battery cell 100 into the casing 200. By guiding the battery cell 100, which may include guiding the core 110 of the battery cell 100 and guiding the top cover 120, the core 110 of the battery cell 100 and the guide region 122 of the top cover 120 can enter the casing 200 more effectively along the guide 350, and the problem that the press-fitting quality is affected due to poor alignment between the body 121 of the top cover 120 and the opening of the casing 200 is avoided.
In some embodiments, in the step of transferring the horizontal pre-press-fitted battery cell 100 and the casing 200 and performing vertical press-fitting, the body 121 of the top cover 120 is limited, so that an end surface of the body 121 of the top cover 120, which is far away from the guide area 122, is flush with a shell opening end surface of the casing 200. In the vertical press-fitting process, a part of the body 121 of the top cover 120 sinks into the housing 200, and the step between the top cover 120 and the housing 200 exceeds the standard after press-fitting, so that the rework rate is high. The body 121 of the top cover 120 is limited during vertical press fitting, so that the end face of the body 121 of the top cover 120, which is far away from the guide area 122, is pressed to the end face of the shell opening of the shell 200, the body 121 of the top cover 120 can be limited from sinking into the shell 200, and therefore no step is generated between the end face of the body 121 of the top cover 120, which is far away from the guide area 122, and the shell opening end face of the shell 200, and the problem of rework is avoided.
The embodiment of the present application further provides a press-fitting system for a battery cell to enter a casing, including: a horizontal pre-press fitting device 300 for inserting the guide region 122 of the top cover 120 of the battery cell 100 into the casing 200, see fig. 3 to 5; the transfer device is used for transferring the horizontal pre-press-fitted battery cell 100 and the shell 200 to vertical press-fitting; and a vertical press-fitting device 400 for inserting the body 121 of the top cover 120 into the housing 200, see fig. 6 and 7.
That is, the horizontal pre-press fitting device 300 only needs to press the guide area 122 of the top cover 120 into the housing 200, the body 121 of the top cover 120 is not pressed into the housing 200, the acting force between the housing 200 and the top cover 120 is small, and the phenomenon that the top cover 120 pops up due to the large acting force between the housing 200 and the top cover 120 can be effectively prevented. In addition, the horizontal pre-press mounting device 300 avoids the assembly of the maximum extrusion force area between the top cover 120 and the housing 200, namely the assembly of the body 121 of the top cover 120 and the housing 200, thereby greatly reducing the condition that the body 121 of the top cover 120 and the housing 200 are damaged due to poor alignment and are scrapped. It can be understood that, in the process of transferring the battery cell 100 and the casing 200 by the transferring device, it is necessary to maintain the pre-press-fitting state of the battery cell 100 and the casing 200 so as to facilitate the vertical press-fitting. The vertical press-fitting device 400 presses the body 121 of the top cover 120 into the casing 200, thereby completing the press-fitting of the battery cell 100. After horizontal pre-press mounting, a certain acting force exists between the top cover 120 and the shell 200, and on the premise of the acting force, when vertical press mounting is performed again, the phenomenon that a part of the body 121 of the top cover 120 sinks below the shell opening of the shell 200 due to the self-gravity of the battery core 100 can be effectively prevented, so that the condition of high rework rate is avoided, and the press mounting efficiency is greatly improved.
The press-fitting system for the battery core to enter the shell comprises a horizontal pre-press-fitting device 300, a transfer device and a vertical press-fitting device 400, and the press-fitting steps of enabling the guide area 122 of the top cover 120 of the battery core 100 to enter the shell 200 and enabling the body 121 of the top cover 120 to enter the shell 200 are successively completed, so that the press-fitting of the battery core to enter the shell can be effectively completed, the stability is good, and the press-fitting efficiency and the battery core goodness are high.
Referring to fig. 3 and 4, in some embodiments, the horizontal pre-press-fitting apparatus 300 includes a base 310, a positioning mechanism 320 for fixing the casing 200, a pushing mechanism 330 for pressing the battery cell 100 into the casing 200, and a limiting mechanism 340 for limiting the depth of the battery cell 100 entering the casing 200, where the positioning mechanism 320 and the pushing mechanism 330 are both mounted on the base 310; the limiting mechanism 340 is mounted on the pushing mechanism 330 to limit the pushing distance of the pushing mechanism 330. It can be understood that the limiting mechanism 340 can limit the movement of the pushing mechanism 330, so that the core 110 of the battery cell 100 and the guide region 122 of the top cover 120 enter the casing 200, and the body 121 of the top cover 120 remains outside the casing 200, thereby implementing the pre-press-fitting of the battery cell 100. By limiting the depth of the battery cell 100 entering the casing 200, the guide area 122 of the top cover 120 is ensured to completely enter the casing 200, the accuracy of horizontal pre-pressing is increased, a proper acting force is kept between the battery cell 100 and the casing 200, and the phenomena of ejection and poor centering degree of the top cover 120 are avoided.
It will be appreciated that the engagement of the limiting mechanism 340 with the pushing mechanism 330 can be in many ways, such as determining the position of the pushing mechanism 330 by detecting the positioning, and controlling the pushing mechanism 330 to stop moving when moving to a preset position. In some embodiments, the pushing mechanism 330 includes a first pushing block (not shown) abutting against the battery cell 100 and a first driving member 332 pushing the first pushing block (not shown) to move, and the limiting mechanism 340 includes a first limiting member 341 mounted on the first driving member 332 to adjust the depth of the battery cell 100 entering the casing 200. Specifically, the first driving member 332 may be a cylinder, and the first limiting member 341 is a stroke adjusting nut installed at the rear of the cylinder. The first pushing block (not shown) is used for abutting against the battery cell 100 and pushing the battery cell 100 to move under the driving of the first driving member 332. The limiting manner is mechanical limiting, the structure of the limiting mechanism 340 and the matching manner of the limiting mechanism 340 and the pushing mechanism 330 can be simplified, and the first limiting member 341 can effectively limit the pushing distance of the cylinder to the battery cell 100, so that the guiding region 122 of the top cover 120 can be more accurately ensured to enter the casing 200, and the body 121 of the top cover 120 is located outside the casing 200.
Referring to fig. 4, in some embodiments, the positioning mechanism 320 includes a positioning plate 321 for placing the housing 200 and a suction assembly 322 for positioning the bottom of the housing 200, the suction assembly 322 is mounted on the positioning plate 321, and the positioning plate 321 is mounted on the base 310. That is, the bottom of the case 200 is positioned by the suction member 322 when the case 200 is fixed. Specifically, the positioning plate 321 includes a bottom plate 3211 and side plates 3212, the housing 200 is placed on the bottom plate 3211, and the bottom plate 3211 has a positioning surface for placing the housing 200. The suction assembly 322 is mounted to the side plate 3212. The side plate 3212 is perpendicular to the bottom plate 3211, the side plate 3212 cooperates with the adsorption component 322 to be used for positioning the bottom of the housing 200, the bottom of the housing 200 abuts against an end face of the side plate 3212 under the action of the adsorption component 322, and the adsorption component 322 is mounted on the other end face of the side plate 3212 to adsorb and position the housing 200. The adsorption component 322 adsorbs and positions the casing 200, so that the casing opening of the casing 200 faces more fixedly, and the press-fitting of the battery cell 100 is facilitated.
Further, the positioning plate 321 has a first step portion 3211a near the opening of the housing 200 to guide the body 121 of the top cover 120, and an inner wall surface of the lower side of the housing 200 is flush with an upper end surface of the first step portion 3211 a. Specifically, the housing 200 is placed on a positioning surface of the bottom plate 3211, one end of the housing 200 abuts against one end surface of the side plate 3212, the other end of the housing 200 abuts against the first stepped portion 3211a, and the height of the first stepped portion 3211a is the same as the wall thickness of the housing 200. That is to say, the first step portion 3211a offsets the wall thickness of the housing 200 itself, so that the lower end surface of the body 121 of the top cover 120 and the inner wall surface of the housing 200 are on the same horizontal plane, and the body 121 of the top cover 120 can move into the housing 200 along the guide of the first step portion 3211a, thereby realizing smooth transition of movement of the body 121 of the top cover 120, better centering the body 121 of the top cover 120 and the shell opening of the housing 200, and avoiding the problem of crushing damage to the top cover and the housing due to collision of the two.
referring to fig. 4 and 5, in some embodiments, the horizontal pre-press-fitting apparatus 300 includes guide members 350 for guiding the battery cells 100, and the guide members 350 are respectively installed at both horizontal sides of the casing 200. The guide 350 includes a guide plate 351 and a rib 352 disposed inside the guide plate 351, the rib 352 has a second step 3521, the second step 3521 abuts on the shell opening end face of the housing 200, and the body 121 of the top cover 120 moves along the rib 352 to center the shell opening of the housing 200 and enter the housing 200. That is to say, the height of the second step portion 3521 is the same as the thickness of the side wall of the housing 200, the rib 352 is divided into a first rib and a second rib by the second step portion 3521, the side surface of the first rib abuts against the side wall of the housing 200, and the side surface of the second rib is in the same plane as the inner side wall surface of the housing 200, so that the body 121 of the top cover 120 can enter the housing 200 along the guide of the second rib, and further, the body 121 of the top cover 120 is aligned with the shell opening of the housing 200, thereby avoiding the problem of poor alignment.
referring to fig. 6 and 7, the press-fitting system for housing a battery cell in an embodiment of the present application further includes a vertical press-fitting device 400, which includes a vertical platform 410, a pressing mechanism 420, a lifting mechanism 430 for lifting the pre-pressed battery cell 100 and the housing 200, and a positioning assembly 440 for fixing the housing 200, where the pressing mechanism 420 and the positioning assembly 440 are respectively mounted on the vertical platform 410. The pressing mechanism 420 includes a second pushing block 421, a second driving member 422 for driving the second pushing block 421 to move downward, and a stopping portion 423 for limiting a moving distance of the second pushing block 421, wherein the stopping portion 423 is disposed at a lower end of the second pushing block 421, and the stopping portion 423 abuts against a top end of the positioning assembly 440 to limit a movement of the second pushing block 421. Specifically, second driver 422 may be a down-pressure cylinder. The second push block 421 and the stopping portion 423 may be of a split structure or an integral structure.
Referring to fig. 7, two tabs are generally disposed on the upper end surface of the body 121 of the top cap 120, and when the second push block 421 pushes the top cap 120 to move downward, the lower end of the second push block 421 abuts against the upper end surfaces of the tabs on the body 121 of the top cap 120. When the second pushing block 421 is pushed, when the end surface of the body 121 of the top cover 120 far from the guide area 122 is flush with the end surface of the shell opening of the housing 200, the stopping portion 423 abuts against the upper end of the positioning assembly 440, at this time, the second pushing block 421 cannot move downwards continuously, and the body 121 of the top cover 120 completely enters the housing 200. It can be understood that a cavity is formed between the stopping portion 423 and the second pushing block 421 to accommodate two tabs on the body 121 of the top cover 120. The second push block 421, the stop portion 423 and the positioning assembly 440 are matched, so that on one hand, the body 121 of the top cover 120 is ensured to completely enter the housing 200, and no step is formed between the body 121 of the top cover 120 and the housing 200 or the step is an exceeding standard, thereby avoiding the problem of high rework rate caused by the step between the body 121 of the top cover and the housing 200 exceeding the standard; on the other hand, the second push block 421 is prevented from being pressed down continuously to damage the battery cell 100, and the problem that the pressing precision of the second push block 421 is difficult to adjust is solved.
In some embodiments, the positioning assembly 440 includes two positioning blocks 441 symmetrically disposed, the positioning blocks 441 have inclined guide portions 4411 on inner sides thereof, the housing 200 is clamped between the two positioning blocks 441 along the guide portions 4411, and a top end of the housing 200 is flush with top ends of the positioning blocks 441; the stopping portion 423 abuts against the top end of the positioning block 441 to limit the movement of the second push block 421. It can be understood that the positioning blocks 441 have two functions, that is, the raised housing 200 is guided by the guiding portion 4411, so that the housing 200 is not centered and badly clamped between the two positioning blocks 441, and the top end of the housing 200 is more effectively aligned with the top ends of the positioning blocks 441; in addition, through the cooperation between the stopping portion 423 and the positioning block 441, the movement of the second push block 421 is limited, on the premise that the top end of the casing 200 is flush with the top end of the positioning block 441, the end surface of the body 121 of the top cover 120, which is far away from the guide area 122, is just flush with the upper end surface of the positioning block 441, so that the body 121 of the top cover 120 is pressed into the casing 200 more effectively, and the problem that reworking is caused by steps generated between the body 121 of the top cover 120 and the shell opening of the casing 200 is avoided.
In addition, the positioning block 441 is connected to the clamping cylinder 442, the vertical platform 410 is provided with a third limiting member 443, the positioning block 441 is driven by the clamping cylinder 442 to move to a position matched with the battery cell 100 under the limiting action of the third limiting member 443, and when the battery cell 100 and the housing 200 after horizontal pre-press mounting are pushed down to the vertical platform 410 under the action of the jacking mechanism 430, the positioning block 441 clamps the battery cell 100 and the housing 200 under the action of the clamping cylinder 442. The third limiting member 443 may be a limiting nut.
In some embodiments, the jacking mechanism 430 includes a jacking plate 431, a third driving member 432 for driving the jacking plate 431, and a second limiting member 433 for limiting a moving distance of the jacking plate 431, wherein the second limiting member 433 is mounted on the third driving member 432 to limit a top end of the housing 200 to be flush with a top end of the positioning assembly 440. The jacking mechanism 430 jacks the pre-pressed battery cell 100 and the housing 200 and clamps the two between the two positioning blocks 441. Specifically, the third driving element 432 may be a jacking cylinder, the second limiting element 433 includes a limiting plate 4331 installed on the third driving element 432, the jacking mechanism 430 further includes a limiting screw 4332 engaged with the limiting plate 4331, when the limiting plate 4331 abuts against the limiting screw 4332 in the jacking process, the third driving element 432 stops driving, and at this time, the top end of the housing 200 is flush with the top end of the positioning block 441. The second limiting member 433 limits the jacking distance of the jacking cylinder, that is, the jacking is stopped when the end surface of the shell opening of the shell 200 is flush with the upper end surface of the positioning block 441. The limiting mode is mechanical limiting, and the jacking distance of the jacking cylinder is more accurately guaranteed.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and all such changes or substitutions are included in the scope of the present invention. Moreover, the technical solutions in the embodiments of the present invention may be combined with each other, but it is necessary to be able to be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (15)
1. A press-fitting method for a battery cell into a shell is characterized by comprising the following steps:
Horizontally pre-pressing the battery cell and the shell to enable a guide area of a top cover of the battery cell to enter the shell;
And transferring the electric core and the shell after horizontal pre-press mounting and carrying out vertical press mounting, so that the body of the top cover enters the shell, and the shell entering press mounting of the electric core is completed.
2. The method for press-fitting the battery cell into the casing according to claim 1, wherein the step of horizontally pre-press-fitting the battery cell and the casing specifically comprises:
Positioning the housing;
pushing the cell toward the housing and defining a depth of entry of the cell into the housing such that the guide region of the cap enters the housing.
3. The method for press-fitting a battery core into a casing according to claim 2, wherein the sub-step of positioning the casing specifically comprises:
adsorbing and positioning the bottom of the shell;
And clamping and positioning the side part of the shell.
4. a press-fitting method for a cell casing according to claim 2, wherein in the step of pushing the cell toward the casing, the cell is guided so that the body of the top cover is aligned with the casing opening of the casing.
5. A press-fitting method for a battery core casing according to claim 1, wherein in the step of transferring the battery core and the casing after horizontal pre-press-fitting and performing vertical press-fitting, the body of the top cover is limited so that an end surface of the body of the top cover, which is far away from the guide area, is flush with an end surface of a casing opening of the casing.
6. the utility model provides a pressure equipment system of shell is gone into to electricity core which characterized in that includes:
The horizontal pre-pressing device is used for enabling a guide area of a top cover of the battery cell to enter the shell;
the transfer device is used for transferring the electric core and the shell after horizontal pre-press mounting to vertical press mounting; and
And the vertical press-fitting device is used for enabling the body of the top cover to enter the shell.
7. The press-fitting system for the battery core into the casing, according to claim 6, wherein the horizontal pre-press-fitting device comprises a base, a positioning mechanism for fixing the casing, a pushing mechanism for pressing the battery core into the casing, and a limiting mechanism for limiting the depth of the battery core into the casing, and both the positioning mechanism and the pushing mechanism are mounted on the base; the limiting mechanism is arranged on the pushing mechanism to limit the pushing distance of the pushing mechanism.
8. The press-fitting system for a battery cell casing of claim 7, wherein the pushing mechanism includes a first pushing block abutting against the battery cell and a first driving member pushing the first pushing block to move, and the limiting mechanism includes a first limiting member mounted on the first driving member to adjust a depth of the battery cell entering the casing.
9. the press-fitting system for the battery core into the casing, according to claim 7, wherein the positioning mechanism includes a positioning plate for placing the casing and an adsorption component for positioning the bottom of the casing, the positioning plate is mounted on the base, and the adsorption component is mounted on the positioning plate.
10. the press-fitting system for battery cores into casings of claim 9, wherein the positioning plate comprises a bottom plate and a side plate, the bottom plate has a positioning surface for placing the casing in a lying state, the adsorption component is mounted on the side plate, and the bottom of the casing abuts against the side plate under the action of the adsorption component.
11. the press-fitting system for the battery core into the casing as claimed in claim 9, wherein the positioning plate has a first step portion for guiding the body of the top cover near the casing opening of the casing, and an inner wall surface of a lower side of the casing is flush with an upper end surface of the first step portion.
12. The press-fitting system for the battery cell into the casing according to any one of claims 7 to 11, wherein the horizontal pre-press-fitting device comprises guide members for guiding the battery cell, and the guide members are respectively installed at two horizontal sides of the casing;
the guide part comprises a guide plate and ribs arranged on the inner side of the guide plate, the ribs are provided with second step parts, the second step parts are abutted to the end face of the shell opening of the shell, and the body of the top cover moves to center the shell opening of the shell and enters the shell.
13. The system for press-fitting a battery cell into a casing, according to claim 6, wherein the vertical press-fitting device comprises a vertical platform, a pressing-down mechanism, a lifting mechanism for lifting the pre-pressed battery cell and the casing, and a positioning assembly for fixing the casing, wherein the pressing-down mechanism and the positioning assembly are respectively mounted on the vertical platform;
the pressing mechanism comprises a second pushing block, a second driving piece and a stopping portion, the second driving piece drives the second pushing block to move downwards, the stopping portion limits the moving distance of the second pushing block, the stopping portion is arranged at the lower end of the second pushing block, and the stopping portion is abutted to the top end of the positioning assembly to limit the movement of the second pushing block.
14. The press-fitting system for the battery core into the casing of claim 13, wherein the positioning assembly comprises two positioning blocks which are symmetrically arranged, the inner sides of the positioning blocks are provided with inclined guide portions, the casing is clamped between the two positioning blocks along the guide portions, and the top end of the casing is flush with the top ends of the positioning blocks; the stopping part is abutted against the top end of the positioning block to limit the movement of the second pushing block.
15. The press-fitting system for battery cores into casings of claim 13, wherein the jacking mechanism comprises a jacking plate, a third driving member for driving the jacking plate, and a second limiting member for limiting a moving distance of the jacking plate, and the second limiting member is mounted on the third driving member to limit a top end of the casing to be flush with a top end of the positioning assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910738490.8A CN110581298A (en) | 2019-08-12 | 2019-08-12 | Press mounting method and press mounting system for arranging battery cell into shell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910738490.8A CN110581298A (en) | 2019-08-12 | 2019-08-12 | Press mounting method and press mounting system for arranging battery cell into shell |
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| CN110581298A true CN110581298A (en) | 2019-12-17 |
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| CN201910738490.8A Pending CN110581298A (en) | 2019-08-12 | 2019-08-12 | Press mounting method and press mounting system for arranging battery cell into shell |
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Application publication date: 20191217 |