CN109500142B - Detection system with tab shaping function and workflow - Google Patents

Abstract

The invention belongs to the technical field of batteries, and particularly relates to a detection system with a tab shaping function, which comprises a workbench, a positioning device, a pressing device, a driving device and a control device, wherein the positioning device is arranged on the workbench, the pressing device is connected with the driving device, the pressing device corresponds to the workbench, the driving device is electrically connected with the control device, the pressing device comprises a substrate, a first pressing plate, a second pressing plate, a third pressing plate, a first elastic structure, a second elastic structure and a third elastic structure, the first pressing plate is arranged on the substrate through the first elastic structure, the second pressing plate is arranged on the substrate through the second elastic structure, the third pressing plate is arranged on the substrate through the third elastic structure, and the second pressing plate and the third pressing plate are electrically connected with the control device. The detection system can be used for rapidly checking and screening the conduction state of the tab, shaping the tab, and is simple in structure, convenient to operate, safe and efficient. In addition, a work flow of the detection system is provided, so that the stability and efficiency of work of the detection system are improved.

Description

Detection system with tab shaping function and workflow

Technical Field

The invention belongs to the technical field of batteries, and particularly relates to a detection system with a tab shaping function and a workflow.

Background

Depending on the electrolyte materials used in the Lithium Ion Battery, the Lithium Ion Battery is classified into a liquid Lithium Ion Battery (Liquified Lithium-Ion Battery, abbreviated as LIB) and a Polymer Lithium Ion Battery (Polymer Lithium-Ion Battery, abbreviated as PLB) or a plastic Lithium Ion Battery (Plastic Lithium Ion Batteries, abbreviated as PLB). The positive and negative electrode materials used by the polymer lithium ion battery are the same as liquid lithium ions, the positive electrode materials are divided into lithium cobaltate, lithium manganate, ternary materials and lithium iron phosphate materials, the negative electrode is graphite, and the working principle of the battery is basically consistent. The main difference is that the electrolyte is different, the liquid electrolyte is used for the liquid lithium ion battery, and the solid polymer electrolyte is used for the polymer lithium ion battery, so that the polymer can be in a dry state or in a colloid state. The polymer lithium ion battery has the characteristics of good safety performance, light weight, large capacity, small internal resistance and the like.

In the production process of the polymer lithium ion battery cell, because the edge distances of part of model aluminum electrode lugs and nickel electrode lugs are symmetrical, a plurality of production bad phenomena can occur in the prior art, for example, after manual rubberizing, an operator can put the battery cell in a reverse bare state, the top sealing equipment does not recognize positive and negative functions, and the battery cell is scrapped after encapsulation; the electrode lugs are bent and tilted in the transportation process of the bare cell, the electrode lugs are packaged poorly, and the electrode lugs are askew, so that formation fatal bad leakage is caused; the cell is not precisely positioned, the cell offset push plate of the transfer receiving station is pushed forward, and the angular position of the head of the cell is bumped to cause internal short circuit. The occurrence of these phenomena greatly affects the production efficiency.

In summary, the related technology has defects, which are unfavorable for industrial production and are highly needed to be perfected.

Disclosure of Invention

One of the objects of the present invention is: to the not enough of prior art, but provide a detecting system with utmost point ear plastic function for detect the identification to the utmost point ear of electric core, select out the defective products that the utmost point ear leads to nothing, plastic the utmost point ear simultaneously, in order to improve production efficiency.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the utility model provides a detecting system with utmost point ear plastic function, includes workstation, positioner, closing device, drive arrangement and controlling means, positioner set up in the workstation, closing device with drive arrangement connects, closing device with the workstation corresponds, drive arrangement with the controlling means electricity is connected, closing device includes base plate, first clamp plate, second clamp plate, third clamp plate, first elastic structure, second elastic structure and third elastic structure, first clamp plate passes through first elastic structure set up in the base plate, the second clamp plate passes through second elastic structure set up in the base plate, the third clamp plate passes through third elastic structure set up in the base plate, the second clamp plate with the third clamp plate all with the controlling means electricity is connected. The method comprises the steps that a battery cell is placed on a workbench, the battery cell is fixed through a positioning device, a driving device adjusts a pressing device to a position corresponding to the battery cell, then the pressing device is driven to press down, a first pressing plate is used for pressing down and fixing a core body of the battery cell, a second pressing plate and a third pressing plate are used for respectively pressing down and shaping two lugs of the battery cell, in practical application, the first elastic structure, the second elastic structure and the third elastic structure are springs or elastic rubber, or other materials or devices with the same efficacy are arranged, and the first elastic structure, the second elastic structure and the third elastic structure are used for avoiding damage caused by rigid contact between the first pressing plate, the second pressing plate and the core body and the lugs of the battery cell; the control device is used for detecting the second pressing plate and the third pressing plate which are in the pressing state in an electrifying manner, so that the conducted good products are distinguished from the non-conducted defective products.

As an improvement of the detection system with the tab shaping function, the driving device comprises a first telescopic mechanism, a second telescopic mechanism and a connecting block, wherein the connecting block is connected with the output end of the first telescopic mechanism, the second telescopic mechanism is arranged on the connecting block, the substrate is connected with the output end of the second telescopic mechanism, and the first telescopic mechanism and the second telescopic mechanism are electrically connected with the control device. The first telescopic mechanism is used for driving the pressing device to horizontally move; the second telescopic mechanism is used for driving the pressing device to vertically move, and the pressing device work cooperatively, so that the detection of a large number of battery cells is facilitated.

As an improvement of the detection system with the tab shaping function, the movement direction of the output end of the first telescopic mechanism is mutually perpendicular to the movement direction of the output end of the second telescopic mechanism. The design is beneficial to loading and unloading of the battery cell.

As an improvement of the detection system with the tab shaping function, the first telescopic mechanism is an electric sliding table. The first telescopic mechanism can also be an air cylinder or a hydraulic cylinder; in addition, the first telescopic mechanism can be other mechanisms capable of achieving the same effect.

As an improvement of the detection system with the tab shaping function, the second telescopic mechanism is an air cylinder or a hydraulic cylinder. In addition, the second telescopic mechanism can be other mechanisms capable of achieving the same effect.

As an improvement of the detection system with the tab shaping function, the positioning device comprises a clamping part and a contact part, wherein the contact part is arranged on the clamping part. The clamping part is used for fixing, and the contact part is used for propping the battery cell against and preventing the battery cell from sliding.

As an improvement of the detection system with the tab shaping function, the thickness of the contact part is smaller than that of the battery cell. This design is favorable to first clamp plate to push down the electric core to play fixed effect.

As an improvement of the detection system with the tab shaping function, the number of the positioning devices is at least 2. The positioning effect of the battery cell can be improved by arranging a plurality of positioning devices, and the number of the positioning devices can be flexibly set according to actual conditions.

As an improvement of the detection system with the tab shaping function, the detection system with the tab shaping function further comprises a frame and a cushion block, wherein the workbench and the first telescopic mechanism are arranged on the frame, and the cushion block is arranged on the workbench. The arrangement of the frame ensures that the system works more stably; the arrangement of the cushion blocks prevents the electrode lugs of the battery core from wrinkling, and the shaping effect is improved.

The second object of the present invention is: aiming at the defects of the prior art, the application method of the detection system with the tab shaping function is also provided, so that the working stability and efficiency of the detection system are improved.

In order to achieve the above object, the present invention provides a workflow of a detection system with tab shaping function, comprising the following steps:

s1, placing a battery cell on a workbench;

s2, clamping and fixing the battery cell through the positioning device;

s3, moving the cushion block to the position below the electrode lug of the battery cell;

s4, the control device controls the first telescopic mechanism to work, the connecting block moves horizontally along with the first telescopic mechanism to drive the compressing device to move horizontally, and the compressing device is adjusted to a position corresponding to the battery cell;

s5, the control device controls the second telescopic mechanism to work, the pressing device moves vertically along with the second telescopic mechanism, the first pressing plate presses down the core body of the battery cell, and the second pressing plate and the third pressing plate respectively press down two lugs of the battery cell;

s6, the control device carries out electrifying detection on the second pressing plate and the third pressing plate, and judges the conducting state;

s7, judging the conducting state as good products, and then leading the good products into the next production step;

s8, judging the non-conducting state as defective products, and then placing the defective products in a defective product storage area;

wherein, step S7 and step S8 are performed simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a second schematic diagram of the structure of the present invention;

wherein: 1-a workbench; 2-positioning means; 21-a clamping part; 22-contact; 3-a compressing device; 31-a substrate; 32-a first platen; 33-a second platen; 34-a third platen; 35-a first elastic structure; 36-a second elastic structure; 37-a third elastic structure; 4-a driving device; 41-a first telescopic mechanism; 42-a second telescopic mechanism; 43-connecting blocks; 5-a control device; 6-a frame; 7-cushion blocks; 8-an electric core; 9-tab.

Detailed Description

Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The present invention will be described in further detail below with reference to the drawings, but is not limited thereto.

Example 1

As shown in fig. 1-2, a detection system with a tab shaping function includes a workbench 1, a positioning device 2, a pressing device 3, a driving device 4 and a control device 5, wherein the positioning device 2 is arranged on the workbench 1, the pressing device 3 is connected with the driving device 4, the pressing device 3 corresponds to the workbench 1, the driving device 4 is electrically connected with the control device 5, the pressing device 3 includes a substrate 31, a first pressing plate 32, a second pressing plate 33, a third pressing plate 34, a first elastic structure 35, a second elastic structure 36 and a third elastic structure 37, the first pressing plate 32 is arranged on the substrate 31 through the first elastic structure 35, the second pressing plate 33 is arranged on the substrate 31 through the second elastic structure 36, the third pressing plate 34 is arranged on the substrate 31 through the third elastic structure 37, and the second pressing plate 33 and the third pressing plate 34 are electrically connected with the control device 5. The battery cell 8 is placed on the workbench 1, the battery cell 8 is fixed through the positioning device 2, the driving device 4 adjusts the pressing device 3 to a position corresponding to the battery cell 8, and then the pressing device 3 is driven to press down, so that the first pressing plate 32 presses down and fixes the core body of the battery cell 8, and the second pressing plate 33 and the third pressing plate 34 respectively press down and shape the two lugs 9 of the battery cell 8; in practical applications, the first elastic structure 35, the second elastic structure 36 and the third elastic structure 37 are springs or elastic rubber, or other materials or devices with the same effect, and the arrangement of the first elastic structure and the second elastic structure avoids the damage caused by the rigid contact between the first pressing plate 32, the second pressing plate 33 and the third pressing plate 34 and the core body and the tab 9 of the battery cell 8; the control device 5 is used for detecting the second pressing plate 33 and the third pressing plate 34 which are in a pressing state in a power-on mode, so that the conducted good products are distinguished from the non-conducted defective products.

Preferably, the driving device 4 includes a first telescopic mechanism 41, a second telescopic mechanism 42, and a connection block 43, the connection block 43 is connected to an output end of the first telescopic mechanism 41, the second telescopic mechanism 42 is disposed on the connection block 43, the substrate 31 is connected to an output end of the second telescopic mechanism 42, and the first telescopic mechanism 41 and the second telescopic mechanism 42 are electrically connected to the control device 5. The first telescopic mechanism 41 is used for driving the pressing device 3 to horizontally move; the second telescopic mechanism 42 is used for driving the pressing device 3 to vertically move, and the pressing device work cooperatively, so that the detection of a large number of battery cells 8 is facilitated.

Preferably, the movement direction of the output end of the first telescopic mechanism 41 is perpendicular to the movement direction of the output end of the second telescopic mechanism 42. The design is beneficial to loading and unloading of the battery cells 8.

Preferably, the first telescopic mechanism 41 is an electric sliding table. The first telescopic mechanism 41 may also be an air cylinder or a hydraulic cylinder; in addition, the first telescopic mechanism 41 may be other mechanisms capable of achieving the same effect.

Preferably, the second telescopic mechanism 42 is an air cylinder or a hydraulic cylinder. In addition, the second telescopic mechanism 42 may be other mechanisms capable of achieving the same effect.

Preferably, the positioning device 2 includes a clamping portion 21 and a contact portion 22, and the contact portion 22 is provided to the clamping portion 21. The clamping part 21 is used for fixing, and the contact part 22 is used for propping the battery cell 8 against and preventing the battery cell from sliding.

Preferably, the thickness of the contact 22 is less than the thickness of the cell 8. This design facilitates the first press plate 32 to press against the cell 8, thereby providing a secure effect.

Preferably, the number of positioning means 2 is at least 2. The positioning effect of the battery cells 8 can be increased by arranging a plurality of positioning devices 2, and the positioning devices 2 can be flexibly arranged according to the actual situation.

The invention further comprises a frame 6 and a cushion block 7, wherein the workbench 1 and the first telescopic mechanism 41 are arranged on the frame 6, and the cushion block 7 is arranged on the workbench 1. The arrangement of the frame 6 makes the system work more stable; the arrangement of the cushion block 7 prevents the electrode lugs 9 of the battery core 8 from wrinkling, and the shaping effect is improved.

The working principle of the invention is as follows: the battery cell 8 is placed on the workbench 1, the battery cell 8 is fixed through the positioning device 2, the driving device 4 adjusts the pressing device 3 to a position corresponding to the battery cell 8, then the pressing device 3 is driven to press down, the first pressing plate 32 is used for pressing down and fixing the core body of the battery cell 8, the second pressing plate 33 and the third pressing plate 34 are used for respectively pressing down and shaping the two lugs 9 of the battery cell 8, and the first elastic structure 35, the second elastic structure 36 and the third elastic structure 37 are arranged to avoid the damage caused by rigid contact between the first pressing plate 32, the second pressing plate 33 and the third pressing plate 34 and the core body and the lugs 9 of the battery cell 8; the control device 5 electrifies and detects the second pressing plate 33 and the third pressing plate 34 which are in a pressed state, thereby distinguishing the conductive good products from the non-conductive defective products.

Example 2

As shown in fig. 1-2, a workflow of the detection system with tab shaping function in embodiment 1 includes the following steps:

s1, placing a battery cell 8 on a workbench 1;

s2, clamping and fixing the battery cell 8 through the positioning device 2;

s3, moving the cushion block 7 to the position below the electrode lug 9 of the battery cell 8;

s4, the control device 5 controls the first telescopic mechanism 41 to work, the connecting block 43 moves horizontally along with the first telescopic mechanism to drive the pressing device 3 to move horizontally, and the pressing device 3 is adjusted to a position corresponding to the battery cell 8;

s5, the control device 5 controls the second telescopic mechanism 42 to work, the pressing device 3 moves vertically along with the second telescopic mechanism, the first pressing plate 32 presses down the core body of the battery cell 8, and the second pressing plate 33 and the third pressing plate 34 respectively press down the two lugs 9 of the battery cell 8;

s6, the control device 5 carries out electrifying detection on the second pressing plate 33 and the third pressing plate 34, and judges the conducting state;

s7, judging the conducting state as good products, and then leading the good products into the next production step;

s8, judging the non-conducting state as defective products, and then placing the defective products in a defective product storage area;

wherein, step S7 and step S8 are performed simultaneously.

While the foregoing description illustrates and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.

Claims (4)

1. A detection system with tab shaping function is characterized in that: the device comprises a workbench (1), a positioning device (2), a pressing device (3), a driving device (4) and a control device (5), wherein the positioning device (2) is arranged on the workbench (1), the pressing device (3) is connected with the driving device (4), the pressing device (3) corresponds to the workbench (1), the driving device (4) is electrically connected with the control device (5), the pressing device (3) comprises a substrate (31), a first pressing plate (32), a second pressing plate (33), a third pressing plate (34), a first elastic structure (35), a second elastic structure (36) and a third elastic structure (37), the first pressing plate (32) is arranged on the substrate (31) through the first elastic structure (35), the second pressing plate (33) is arranged on the substrate (31) through the second elastic structure (36), the third pressing plate (34) is arranged on the substrate (31) through the third elastic structure (37), and the second pressing plate (33) and the third pressing plate (34) are electrically connected with the control device (5).

The positioning device (2) comprises a clamping part (21) and a contact part (22), wherein the contact part (22) is arranged on the clamping part (21), and the thickness of the contact part (22) is smaller than that of the battery cell (8);

the driving device (4) comprises a first telescopic mechanism (41), a second telescopic mechanism (42) and a connecting block (43), wherein the connecting block (43) is connected with the output end of the first telescopic mechanism (41), the second telescopic mechanism (42) is arranged on the connecting block (43), the substrate (31) is connected with the output end of the second telescopic mechanism (42), the first telescopic mechanism (41) and the second telescopic mechanism (42) are electrically connected with the control device (5), the movement direction of the output end of the first telescopic mechanism (41) is mutually perpendicular to the movement direction of the output end of the second telescopic mechanism (42), the first telescopic mechanism (41) is an electric sliding table, and the second telescopic mechanism (42) is an air cylinder or a hydraulic cylinder.

2. The detection system with tab shaping function as set forth in claim 1, wherein: the number of the positioning devices (2) is at least 2.

3. The detection system with tab shaping function as set forth in claim 1, wherein: still include frame (6) and cushion (7), workstation (1) with first telescopic machanism (41) all set up in frame (6), cushion (7) set up in workstation (1).

4. A workflow of a detection system with tab shaping function as claimed in any one of claims 1 to 3, comprising the steps of:

s1, placing a battery cell (8) on a workbench (1);

s2, clamping and fixing the battery cell (8) through the positioning device (2);

s3, moving the cushion block (7) to the position below the electrode lug (9) of the battery cell (8);

s4, the control device (5) controls the first telescopic mechanism (41) to work, the connecting block (43) moves horizontally along with the first telescopic mechanism, the pressing device (3) is driven to move horizontally, and the pressing device (3) is adjusted to a position corresponding to the battery cell (8);

s5, the control device (5) controls the second telescopic mechanism (42) to work, the pressing device (3) moves vertically along with the second telescopic mechanism, the first pressing plate (32) presses down the core body of the battery cell (8), and the second pressing plate (33) and the third pressing plate (34) respectively press down the two lugs (9) of the battery cell (8);

s6, the control device (5) carries out electrifying detection on the second pressing plate (33) and the third pressing plate (34) and judges the conducting state;

s7, judging the conducting state as good products, and then leading the good products into the next production step;

s8, judging the non-conducting state as defective products, and then placing the defective products in a defective product storage area;

wherein, step S7 and step S8 are performed simultaneously.