CN117718233A - Lamination cell on-line measuring system - Google Patents

Abstract

The invention relates to an online detection system for laminated cells, which aims to solve the technical problems that the detection efficiency is low, continuous and rapid detection cannot be realized in the current CT detection scheme for long cells, long cells are easy to damage due to multiple times of transportation, and the online detection system comprises a feeding station, four detection stations and a discharging station, wherein the laminated long cells can be detected by important protection, so that the laminated long cells only need to be transported by a robot in the feeding and discharging processes, other stations do not need to be transported, and the laminated long cells can be inspected at four corners on a circulating rotation line. The application utilizes circulation gyration line to build electric core circulation transfer chain, arranges detection module in proper order according to combination carrier flow order, and the head-to-tail flows the station and sets up to last unloading station, and middle circulation station sets up to detection station, and whole circulation gyration line does not set up unnecessary waiting or transfer station, and this scheme can shorten equipment workflow, improves equipment efficiency for the beat realizes more stable and efficient mode.

Description

Lamination cell on-line measuring system

Technical Field

The invention relates to the technical field of detection of new energy lithium batteries (laminated battery cells), in particular to an on-line detection system of the laminated battery cells.

Background

The existing off-line CT (X-ray) detection equipment in the market is long in single product detection time, manual loading and unloading are needed, equipment jig trays are repeatedly installed and removed along with loading and unloading, detection efficiency is not advantageous in the whole-line production mode, only spot inspection or sample inspection can be performed, and whole-line product inspection cannot be achieved.

The current long electric core CT detection scheme of online, when detecting 4 angles of electric core, need rotate electric core many times, corner mechanism is huge, and detection efficiency is not high, can not accomplish continuous short-term test, carries electric core many times simultaneously also causes the damage to electric core easily, and electric core location's stability also is difficult to guarantee, and the inside return wire of equipment needs to set up electric core tray in addition, and tray slewing mechanism can not set up the detection station, can increase equipment width space. The online CT cases which are actually applied in the market are almost not available, and the online CT rapid detection equipment for the long lamination cells just fills the blank, so that the online CT detection of the long lamination cells is realized. In view of this, we propose an on-line inspection system for laminated cells.

Disclosure of Invention

The invention aims at: the method solves the problem that the existing long-cell CT detection needs multiple rotations, reduces the rotation times and simplifies the slewing mechanism. The tray carrying mode is canceled, the influence of repeated carrying on the battery cell is reduced and the machine stability is improved while the efficiency is improved, the tray is locked on the annular backflow line, a rotary ferrying mechanism is not required to be additionally arranged, the detection station can be arranged in a full space, and the equipment space is maximally utilized.

In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: designing an online detection system of a laminated battery cell, which comprises an operation module; the operation module comprises a feeding conveying line, a code scanning NG conveying line, a feeding robot, a circulating rotation line, a combined carrier, a first detection CT, a second detection CT, a third detection CT, a fourth detection CT, a discharging robot, a discharging conveying line and a detection NG conveying line; the combined carriers are arranged in a plurality of groups and rotatably arranged on the circulating rotation line; wherein, a group of two adjacent combined carriers respectively form a feeding station and a discharging station; the first detection CT, the second detection CT, the third detection CT and the fourth detection CT are all arranged on the circulating rotation line at equal intervals in an annular shape through a combined carrier to form a detection station; the feeding conveying line is arranged on one side of the feeding station, the code scanning NG conveying line is arranged on the upper layer of the feeding conveying line, and the feeding robot is arranged between the feeding conveying line and the feeding station; wherein, the code scanning NG conveying line and the feeding conveying line are vertically distributed in the moving direction; the blanking conveying line is arranged on one side of the blanking station, the detection NG conveying line is arranged on the upper layer of the blanking conveying line, and the blanking robot is arranged between the blanking conveying line and the blanking station; wherein, detect NG transfer chain with unloading transfer chain direction of motion is perpendicular distribution.

Preferably, the combined carriers are arranged in six groups, and are equidistantly arranged on the circulating rotation line;

the combined carrier is arranged on the circulating rotation line through a rotating mechanism, and a cable of the rotating mechanism is guided to the center of the circulating rotation line through a joint shaft.

Preferably, clamping jaws are arranged at the free ends of the feeding robot and the discharging robot.

Preferably, the side end of the circulating rotation line is provided with a slope guide plate matched with the combined carrier, and the opposite ends of the middle area of the slope guide plate are provided with slope changes and are in a mountain shape with low middle high ends and gradual change contour lines.

Preferably, the combined carrier comprises a carrier bottom plate, a bottom cushion, a middle partition plate, an upper pressing plate, a guide circular shaft, a guide bearing, a bracket, a side supporting plate, a sliding block vertical plate, a movable plate and a guide rail bottom plate; the carrier bottom plate is arranged on the rotating mechanism, the guide rail bottom plate is arranged at the edge of the carrier bottom plate, the bottom cushion is fixed on the upper layer of the carrier bottom plate, the middle partition plate is arranged above the bottom cushion, a plurality of guide circular shafts are arranged and are all arranged on the carrier bottom plate, wherein two adjacent guide circular shafts are fixedly connected through a connecting rod, the guide bearing is movably sleeved on the guide circular shaft to be connected with the middle partition plate, the bracket is fixed on the guide circular shaft, the side supporting plate is fixed at the side end of the bracket, the sliding block vertical plate is fixed on the front surface of the side supporting plate, the upper pressing plate is fixed on the sliding block vertical plate, and the movable plate is fixedly connected with one surface of the sliding block vertical plate.

Preferably, the end part of the movable plate penetrates out of the guide rail bottom plate and is connected with a cam bearing follower, and the cam bearing follower is in rolling contact with the gradient guide plate.

Preferably, the combined carrier further comprises a spring support plate and a compression spring; the spring support plate is far away from the carrier bottom plate and is fixed on one end of the guide rail bottom plate, the compression springs are arranged between the movable plate and the spring support plate, and the slider vertical plate is in sliding connection with the guide rail bottom plate through the linear guide rail.

Preferably, the middle partition plate and the carrier bottom plate and the upper pressing plate are all in clearance to form a cell clamping cavity.

Preferably, the feeding station, the feeding conveying line end and the feeding robot and the discharging station, the discharging conveying line end and the discharging robot are all arranged at three points in a right triangle.

Compared with the prior art, the invention has the beneficial effects that:

1. the novel scheme for rapidly detecting the laminated long battery cell comprises the following steps: in the prior art, a detection mechanism needs to be arranged outside the circulating rotation line, and a conveying mechanism needs to be added to convey the detection battery cell to the detection module. The carrying mechanism is added, and the mechanisms such as the clamping jaw and the movable module are correspondingly added, so that the running steps and the flow of equipment are more complicated, the detection beat is prolonged, and the quick detection is not facilitated. The application is quick detection innovation scheme, utilizes the circulation gyration line to build electric core circulation transfer chain, arranges detection module in proper order according to combination carrier flow order, and the head and the tail flows the station setting to last unloading station, and the centre flows the station setting to detection station, and whole circulation gyration line does not set up unnecessary waiting or transfer station, and this scheme can shorten equipment work flow, improves equipment efficiency, accelerates the beat, realizes more stable and efficient mode.

2. The detection object is rotated for a few times: six groups of combined carriers are equidistantly arranged on a circulating rotary line, the combined carriers are installed on the circulating rotary line through a rotating mechanism (the rotating mechanism can be a DD motor or a hollow rotary table and other mechanisms), the circulating rotary line drives the combined carriers to circulate on the circulating rotary line, a cable of the rotating mechanism is guided to the center of the circulating rotary line through a joint shaft, and the problem of rotating and winding of a line is solved by using an electric slip ring. Six groups of combined carriers uniformly move or stop along with the circulating rotation line, each station is moved, corresponding movement operation is executed by each station, linkage is integrally realized, and 4 groups of battery cells are detected simultaneously. The cell detection is switched to the second angle at the first angle, the rotation is not needed between the third angle and the fourth angle, the rotation is needed when the second angle is switched to the third angle, the feeding position is to the first angle and the fourth angle is to the discharging position, the rotation of the detection object for a few times is realized, the stations are in parallel connection, the circulation of the combined carrier can reach faster beat, and the equipment efficiency is greatly improved.

3. The multi-layer stacking detection is realized through the carrier multi-layer structure, and the combined carrier has the functions of automatic opening and clamping by utilizing the elastic mechanism: the combined carrier has a double-layer or multi-layer cavity structure, and each layer of clamping plates can be sequentially opened or closed through the combination of the linear guide rail, the linear bearing and the spring, so that the combined carrier has a multi-layer clamping function. When the carrier moves to a specific position on the circulating rotation line, the cam bearing follower walks on the gradient guide plate, and the gradient guide plate changes the motion high-low track of the cam bearing follower, so that the function of enabling all layers of clamping plates to be opened in sequence without external power is realized, the power mechanism of the carrier is reduced, and the mechanism is simplified and stably operated.

4. And (3) adapting to a long-size battery cell: the length of long electric core of fold piece is 2 to 3 times of general lamination electric core, and length can reach 1200mm, and this application adopts the mode of installing the combination carrier on circulating gyration line for the combination carrier can be with long electric core cladding on a large scale, and apply the clamp force to it at long electric core thickness direction, long electric core is more steady when being shifted and transport, compares traditional tray and bears electric core scheme, and electric core only receives the constraint of length and width location in the tray, breaks away from the gyration line when the tray is carried, and the whole scheme of this application is more suitable for long electric core of fold piece.

5. Space-saving feeding and discharging mode: the feeding and discharging mode adopts a robot with clamping jaws, and the clamping jaws can clamp more than 2 long battery cells. During feeding, the robot sequentially grabs the battery cells on the feeding conveying line until the multi-layer clamping jaw is full, and then the robot transfers the battery cells to the feeding station on the circulating rotary line. The feeding station, the tail end of the feeding conveying line and the robot are arranged at three points of a right triangle, the robot is positioned at the right angle point, the robot drives the clamping jaw to reciprocate at the triangle bevel edge formed by the three points, and the layout saves more equipment space. The blanking functional areas and the feeding functional areas are arranged in a mirror symmetry mode, redundant waiting or transferring stations are not arranged between the blanking functional areas and the feeding functional areas, so that the functional areas are distributed more intensively, the battery cell transferring time is shorter, and the equipment operation efficiency is higher.

Drawings

FIG. 1 is a schematic top view of the overall structure of the present invention;

FIG. 2 is an isometric view of the overall structure of the present invention;

FIG. 3 is a schematic diagram of the overall architecture workflow of the present invention;

FIG. 4 is a schematic view of a carrying mechanism according to the present invention;

FIG. 5 is a schematic diagram of a feeding structure in the present invention;

FIG. 6 is a schematic diagram of the feeding process according to the present invention;

FIG. 7 is a schematic view of a combined carrier according to the present invention;

FIG. 8 is a schematic diagram of the opening and closing operation of the combined carrier of the present invention;

FIG. 9 is a schematic view of the upward movement of the middle partition and the bracket of the combined carrier according to the present invention;

FIG. 10 is an isometric view of the other side of the composite carrier of the present invention;

FIG. 11 is a schematic isometric view of the motion fit of the loading jaw and the combined carrier of the present invention;

FIG. 12 is a schematic diagram of a motion fit test of a loading jaw and a combined carrier in accordance with the present invention;

in the figure: 1. a feeding conveying line; 2. scanning a code NG conveying line; 3. a feeding robot; 4. a cyclic rotation line; 5. combining the carriers; 6. a first detection CT; 7. a second detection CT; 8. third detection CT; 9. fourth detection CT; 10. a blanking robot; 11. a blanking conveying line; 12. detecting an NG conveying line;

101. stacking long battery cells;

31. a feeding cylinder; 32. a first movable clamp plate; 33. a first fixed splint; 34. a second fixed splint; 35. a second movable clamp plate;

401. slope guide plate;

501. a carrier base plate; 502. a bottom cushion; 503. a first long cell; 504. a middle partition plate; 505. a second long cell; 506. an upper press plate; 507. guiding the round shaft; 508. a guide bearing; 509. a connecting rod; 510. a bracket; 511. a side support plate; 512. a slider riser; 513. a guide rail bottom plate; 514. a spring support plate; 515. a movable plate; 516. cam bearing follower; 517. a compression spring; 518. a linear guide rail;

a. a feeding station; b. a blanking station; c. a first detection station; d. a second detection station; e. a third detection station; f. and a fourth detection station.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

the laminated cell on-line detection system consists of outer cover, frame, control operation unit, image processing unit, electric control unit, running operation system, debugging operation system, equipment running module, X-ray source, flat panel detector, etc. The present application describes in particular an internal operating module of a device, as shown in fig. 1 and 2, wherein the internal operating module is divided into the following 12 modules: the feeding conveying line 1, the code scanning NG conveying line 2, the feeding robot 3, the circulating rotary line 4, the combined carrier 5, the first detection CT6, the second detection CT7, the third detection CT8, the fourth detection CT9, the discharging robot 10, the discharging conveying line 11 and the detection NG conveying line 12.

The combined carriers 5 are provided with a plurality of groups and are rotatably arranged on the circulating rotary line 4; wherein, a group of two adjacent combined carriers 5 respectively form a feeding station a and a discharging station b; the first detection CT6, the second detection CT7, the third detection CT8 and the fourth detection CT9 are all annularly and equidistant arranged on the circulating rotary line 4 through the combined carrier 5 to form a detection station; the feeding conveyor line 1 is arranged on one side of the feeding station a, the code scanning NG conveyor line 2 is arranged on the upper layer of the feeding conveyor line 1, and the feeding robot 3 is arranged between the feeding conveyor line 1 and the feeding station; the code scanning NG conveying line 2 and the feeding conveying line 1 are vertically distributed in the moving direction; the blanking conveying line 11 is arranged on one side of the blanking station, the NG detecting conveying line 12 is arranged on the upper layer of the blanking conveying line 11, and the blanking robot 10 is arranged between the blanking conveying line 11 and the blanking station b; the movement directions of the detection NG conveying line 12 and the blanking conveying line 11 are distributed vertically. It should be noted that the feeding station a, the feeding conveyor line 1 and the feeding robot 3, the discharging station b, the discharging conveyor line 11 and the discharging robot 10 are all arranged at three points in a right triangle.

For knowing how the material loading/unloading transfer chain is arranged with NG transfer chain layering, this application combines the high degree of freedom's of robot characteristics, selects the robot to drive the clamping jaw and carries out the unloading motion, adopts the scheme of going up unloading transfer chain and NG transfer chain layering arrangement, more saves equipment space. As shown in fig. 4, the code scanning NG conveying line 2 is arranged on the upper layer of the feeding conveying line 1, and the moving directions of the two conveying lines are vertically distributed, wherein clamping jaws are mounted at the free ends of the feeding robot 3 and the discharging robot 10. The feeding conveying line 1 drives the stacked long battery cells 101 to move from left to right, and when the stacked long battery cells 101 move to the tail end of the feeding conveying line 1, the feeding robot 3 drives the feeding clamping claws to grab and clamp the stacked long battery cells 101. The arrangement structure of the blanking conveying line 11 is the same as that of the feeding conveying line 1. The robot drives the clamping jaw to move to the arrival end of the feeding conveying line 1, the feeding clamping jaw is composed of an upper row of combined clamping plates and a lower row of combined clamping plates, the upper row of combined clamping plates is a first movable clamping plate 32 and a first fixed clamping plate 33, the lower row of combined clamping plates is a second fixed clamping plate 34 and a second movable clamping plate 35, and each row of combined clamping plates is provided with six groups. Wherein, the first movable clamping plate 32 and the second fixed clamping plate 34 are movably arranged at the free end of the feeding/discharging robot through the feeding cylinder 31. Before grabbing the battery cell, the feeding cylinder 31 contracts to drive the first movable clamping plate 32 to be far away from the first fixed clamping plate 33, so that a cavity larger than the thickness of the battery cell is formed. The first fixing clamp plate 33 moves to the lower part of the laminated long battery cells 101 under the driving of the feeding robot 3, and then the laminated long battery cells 101 are supported. After the lamination long battery cell is lifted, the feeding cylinder 31 is extended to drive the first movable clamping plate 32 to clamp the lamination long battery cell. Both the first movable clamping plate 32 and the first fixed clamping plate 33 are combined to clamp one long stacked cell 101. After the first long battery cell is clamped, the feeding robot 3 drives the clamping jaw to ascend for a certain distance, the feeding conveying line 1 drives the second laminated long battery cell 101 to reach the upper part of the second fixed clamping plate 34, the second fixed clamping plate 34 supports the laminated long battery cell, and after the support, the feeding cylinder 31 arranged below the clamping jaw contracts to drive the second movable clamping plate 35 to clamp the laminated long battery cell. Similarly, through setting up the multilayer combination, can press from both sides and get the long electric core of lamination more than 2, improve complete machine efficiency.

It should be noted that, as shown in fig. 2, the arrival end of the feeding conveyor line 1 is provided with 2 extension shafts, each of the 2 extension shafts is provided with 1 synchronizing wheel, each synchronizing wheel is provided with a synchronizing belt, and the feeding conveyor line 1 is combined with synchronizing wheels at two sides and is provided with 4 synchronizing belts in total. Because the reaching end of the feeding conveying line 1 is provided with the extension shaft, three gaps are formed, and the feeding clamping jaw can utilize the gaps to enable each row of every 2 groups of combined clamping plates to move to the corresponding gaps in the conveying line.

To understand how the composite carrier 5 automatically opens by using the guiding function, the present application discloses a specific implementation structure of the composite carrier 5, where the composite carrier 5 includes a carrier bottom plate 501, a bottom cushion 502, a middle partition plate 504, an upper pressing plate 506, a guiding circular shaft 507, a guiding bearing 508, a bracket 510, a side supporting plate 511, a sliding block vertical plate 512, a movable plate 515, a guiding rail bottom plate 513, a spring supporting plate 514, and a compression spring 517; the carrier bottom plate 501 is arranged on the rotating mechanism, the guide rail bottom plate 513 is arranged on the edge of the carrier bottom plate 501, the bottom cushion 502 is fixed on the upper layer of the carrier bottom plate 501, the middle partition plate 504 is arranged above the bottom cushion 502, the guide circular shafts 507 are arranged in a plurality of ways and are all arranged on the carrier bottom plate 501, wherein two adjacent guide circular shafts 507 are fixedly connected through connecting rods 509, the guide bearings 508 are movably sleeved on the guide circular shafts 507 to be connected with the middle partition plate 504, the bracket 510 is fixed on the guide circular shafts 507, the side support plates 511 are fixed on the side ends of the bracket 510, the slide block vertical plates 512 are fixed on the front side of the side support plates 511, the upper press plates 506 are fixed on the slide block vertical plates 512, and the movable plates 515 are fixedly connected with the slide block vertical plates 512. The spring support plate 514 is fixed to one end of the rail base plate 513 away from the carrier base plate 501, the compression spring 517 is disposed between the movable plate 515 and the spring support plate 514, and the slider riser 512 is slidably connected to the rail base plate 513 through the linear rail 518.

As shown in fig. 5, 6 and 7, the combined carrier 5 is mounted on the rotating mechanism of the endless revolving line 4 through the carrier base plate 501, the bottom cushion 502 is fixed on the carrier base plate 501, the first long cell 503 is placed on the bottom cushion 502, and the second long cell 505 is placed on the middle partition 504. Four guide circular shafts 507 are mounted on the carrier bottom plate 501 and are divided into two groups, wherein two adjacent guide circular shafts 507 are fixedly connected through a connecting rod 509. The guide bearing 508 is movably sleeved on the guide circular shaft 507 and connected with the middle partition plate 504, and can slide up and down along the middle partition plate. The middle spacer 504 has an extended rounded edge and the guide bearing 508 passes through the extended rounded edge of the middle spacer 504 to support it. The bracket 510, the side support plates 511 and the slide vertical plates 512 are fixedly connected with the movable plate 515 as a whole, and the protruding edge of the movable plate 515 is fixedly provided with a cam bearing follower 516. The side end of the circulating rotary line 4 is provided with a gradient guide plate 401 matched with the combined carrier 5, and when the cam bearing follower 516 moves, the gradient guide plate 401 can change the height of the cam bearing follower 516, specifically, the gradient guide plate 401 is fixedly installed on the circulating rotary line 4, and one position of the feeding station a and one position of the discharging station b are respectively arranged. The middle region of the slope guide plate 401 has slope change for both ends, and the middle height and both ends are low, and the contour line is in a mountain shape, and the height of the bracket 510 fixedly connected thereto is also changed. The bottom planar surface of the bracket 510 may support the guide bearing 508 upward, thereby raising the middle spacer 504 and the second long cell 505 together. The compression springs 517 are each mounted on the movable plate 515 and the spring support plate 514 at both ends, and the spring support plate 514 is fixedly connected to the carrier base plate 501 through the guide rail base plate 513. The slider riser 512 is slidably coupled to the rail base 513 via linear rails 518.

As shown in fig. 8, when the combination carrier 5 moves at a station other than the loading station a or the unloading station b, the cam bearing follower 516 of the combination carrier 5 is not subjected to other external forces. The middle spacer 504 and the carrier bottom plate 501 and the upper press plate 506 are all in gap to form a cell clamping cavity. The movable plate 515 is pressed downward by the elastic force of the compression spring 517, and the movable plate 515 drives the upper platen 506 downward through the slider riser 512. When the upper pressing plate 506 contacts the second long cell 505, the middle partition 504 and the first long cell 503 are all pressed downward, and the three are clamped. When the combined carrier 5 reaches the feeding station a or the discharging station b, the cam bearing follower 516 of the combined carrier 5 moves to the middle area along the inclined plane formed by the gradient guide plate 401, the cam bearing follower 516 is lifted, and meanwhile, the upper pressing plate 506 is driven to move upwards through the movable plate 515 and the sliding block vertical plate 512, the upper pressing plate 506, the middle partition plate 504 and the bottom cushion 502 form two cavities, and at the moment, the feeding and discharging robot can conveniently take and place the battery cells. In this state, the compression spring 517 is urged upward by the movable plate 515, and is in a state of greater compression. When the loading and unloading robot finishes taking and placing the battery cells, the combined carrier 5 moves away from the loading and unloading station, and the contact point of the cam bearing follower 516 and the gradient guide plate 401 is continuously changed from the highest point of the middle position to the lowest point of one end under the pressure action of the compression spring 517 along with the movement of the combined carrier. After the combined carrier 5 moves a certain distance, the movable plate 515 drives the upper pressing plate 506 to press the battery cell, so that the clamping function is realized. The combined carrier 5 is opened and clamped in a manner of not depending on an external power source, so that the mechanism is simple and efficient and has high reliability.

As shown in fig. 9, in the pressed state of the composite carrier 5, the bracket 510 is below the middle partition 504, without being in contact therewith. When the combined carrier 5 needs to be opened, the bracket 510, the side support plates 511 and the upper press plate 506 are lifted at the same time, and the upper press plate 506 and the second long cell 505 form a cavity. When the bracket 510 is lifted a certain distance, it contacts the guide bearing 508. At this time, the bracket 510 continuously drives the middle partition plate 504 to rise through the guide bearing 508, so that the middle partition plate and the first long battery cell 503 also form a cavity. At this time, the upper and lower layers of the combined carrier 5 are opened, so that the battery cell can be taken and placed.

As shown in fig. 11, the feeding robot 3 drives the clamping jaw to place the laminated long battery cells 101 in the combined carrier. The upper platen 506 and the middle panel 504 of the composite carrier are sequentially opened to form a cavity, wherein the middle panel 504 and the bottom cushion 502 have notches to allow the first moving clamp plate 32 and the second moving clamp plate 35 to move up and down without interfering with the composite carrier. After the stacked long battery cells 101 are fed into the combined carrier, the first movable clamping plate 32 and the second movable clamping plate 35 are loosened, and the clamping jaw is driven by the feeding robot 3 to withdraw from the combined carrier.

In order to understand the workflow of the operation module, the following specific embodiments are disclosed in the present application:

as shown in fig. 3, six groups of combined carriers 5 are arranged, the six groups of combined carriers 5 are equidistantly arranged on a circulating rotary line 4, the combined carriers 5 are installed on the circulating rotary line through a rotating mechanism (the rotating mechanism can be a DD motor or a hollow turntable or other mechanisms, which are not shown in the drawing), the circulating rotary line 4 drives the combined carriers 5 to circulate on the rotating mechanism, a cable of the rotating mechanism is guided to the center of the circulating rotary line 4 through a joint shaft, and the problem of rotating and winding of a circuit is solved by using an electric slip ring. Six groups of combined carriers 5 uniformly move or stop along with the circulating rotary line 4, each station moves, the corresponding movement operation is executed by each station, the linkage is integrally realized, and four groups of electric cores of each station are detected simultaneously.

As shown in fig. 2, the overall working flow of the equipment is that at the feeding station a, the combined carrier 5 is driven by the circulating line 4 to transfer to the feeding station a from the discharging station b, the cam bearing follower 516 in the combined carrier 5 drives the movable plate 515 to rise under the guiding action of the gradient guide plate 401, and then the combined carrier 5 forms an open state to wait for feeding. Before feeding, the feeding robot 3 scans the battery cell, and if the code scanning result is NG, the feeding robot 3 places the battery cell on the code scanning NG conveying line 2. If the code scanning is successful, the feeding robot 3 drives the feeding clamping jaw, and after two or more electric cores are placed in the combined carrier 5, the electric cores form a stacking alignment state. The circulating rotary line 4 drives the combined carrier 5 to leave the slope guide plate 401, and the combined carrier 5 is closed and compresses the battery cells. During the transfer, the rotation mechanism of the endless revolving line 4 rotates the combined carrier 5 clockwise by 45 degrees. After the first detection station c is reached, the first corner of the battery cell just falls on the center position of the first detection CT6, and the first detection CT6 rotates and generates three-dimensional and two-dimensional images of the first corner of the battery cell. After the first angle is detected, the combined carrier 5 keeps the original angle, continuously flows to the second detection station d, at the moment, the second angle of the battery cell is stopped at the rotation center of the second detection CT7, and the second detection CT7 rotates to generate three-dimensional and two-dimensional images of the second angle of the battery cell. After the second angle is detected, the circulating rotary line 4 drives the combined carrier 5 to move, and in the moving process, the rotating mechanism of the circulating rotary line 4 rotates the combined carrier 5 anticlockwise by 90 degrees. When the combined carrier 5 moves to the third detection station e, the third angle of the battery cell is positioned at the rotation center of the third detection CT8, and the third detection CT8 detects the rotation movement. After the detection is completed, the combined carrier 5 is directly transferred to a fourth detection station f, and at the moment, the fourth corner of the battery cell is positioned at the rotation center of the fourth detection CT9, and the fourth detection CT9 rotates and moves to generate three-dimensional and two-dimensional images of the fourth corner. At this time, the detection of the four corners of the battery cell is completed, and the image processing software generates and outputs a total detection result. The combined carrier 5 continues to be transferred to the blanking station b, and during the transfer, the combined carrier 5 rotates 45 degrees clockwise. After reaching the blanking station b, the cam bearing follower 516 in the combined carrier 5 is guided by the slope guide plate 401 to form an open state, and the opening direction faces the blanking robot. The blanking robot 10 drives the blanking clamping jaw to grab and place the battery cells in the combined carrier 5 on the blanking conveying line 11, and the battery cells continue to flow to the next production process flow. If the battery cell is judged to be an NG, the blanking robot 10 places the battery cell on the NG detection conveying line 12, and the battery cell is circulated and waits for sorting.

To sum up, in the prior art, the jig tray is often required to be carried to the detection station from the detection conveying line, then the detection operation is performed, after one corner is detected, the detection object is required to be rotated and shifted again, then the second corner is detected, once rotation and shift are required for each detection, and the rotation and shift are performed four times altogether, so that the efficiency is poor. The device adopts a mode of arranging the combined carrier on the circular loop-back line, and can detect the battery cell without secondary carrying. The cell only needs to rotate once, so that four-corner detection can be completed, and the efficiency is greatly improved. Meanwhile, the scheme cancels the tray carrying mode, locks the tray on the annular backflow line, does not need to additionally arrange a rotary ferrying mechanism, can set a detection station in full space, maximally utilizes the equipment space, reduces the influence of repeated carrying on the battery cell while improving the efficiency, and improves the stability of the machine.

The embodiments of the present invention are disclosed as preferred embodiments, but not limited thereto, and those skilled in the art will readily appreciate from the foregoing description that various modifications and variations can be made without departing from the spirit of the present invention.

Claims (9)

1. The laminated cell on-line detection system is characterized by comprising an operation module;

the operation module comprises a feeding conveying line (1), a code scanning NG conveying line (2), a feeding robot (3), a circulating rotary line (4), a combined carrier (5), a first detection CT (6), a second detection CT (7), a third detection CT (8), a fourth detection CT (9), a discharging robot (10), a discharging conveying line (11) and a detection NG conveying line (12);

the combined carriers (5) are arranged with a plurality of groups and rotatably arranged on the circulating rotary line (4);

wherein, a group of two adjacent combined carriers (5) respectively form a feeding station and a discharging station;

the first detection CT (6), the second detection CT (7), the third detection CT (8) and the fourth detection CT (9) are all annularly and equidistantly arranged on the circulating rotation line (4) through a combined carrier (5) to form a detection station;

the feeding conveyor line (1) is arranged on one side of the feeding station, the code scanning NG conveyor line (2) is arranged on the upper layer of the feeding conveyor line (1), and the feeding robot (3) is arranged between the feeding conveyor line (1) and the feeding station;

the code scanning NG conveying line (2) and the feeding conveying line (1) are vertically distributed in the moving direction;

the blanking conveying line (11) is arranged on one side of the blanking station, the detection NG conveying line (12) is arranged on the upper layer of the blanking conveying line (11), and the blanking robot (10) is arranged between the blanking conveying line (11) and the blanking station;

the detection NG conveying line (12) and the feeding conveying line (11) are vertically distributed in the moving direction.

2. The laminated cell on-line detection system according to claim 1, characterized in that the combined carrier (5) is arranged with six groups, equidistantly arranged on the endless revolving line (4);

the combined carrier (5) is arranged on the circulating rotary line (4) through a rotating mechanism, and a cable of the rotating mechanism is guided to the center of the circulating rotary line (4) through a joint shaft.

3. The laminated cell on-line detection system according to claim 1, wherein clamping jaws are arranged at the free ends of the feeding robot (3) and the discharging robot (10).

4. The laminated cell online detection system according to claim 1, wherein the side end of the circulating rotary line (4) is provided with a gradient guide plate (401) matched with the combined carrier (5), and opposite ends of the middle area of the gradient guide plate (401) are provided with gradient changes and are in a peak shape with low middle and high ends and gradual change of contour lines.

5. The laminated cell online detection system of claim 4, wherein the combined carrier (5) comprises a carrier bottom plate (501), a bottom cushion (502), a middle partition plate (504), an upper pressing plate (506), a guide circular shaft (507), a guide bearing (508), a bracket (510), a side supporting plate (511), a sliding block vertical plate (512), a movable plate (515) and a guide rail bottom plate (513);

the utility model provides a vehicle bottom plate (501) is installed on rotary mechanism, guide rail bottom plate (513) are installed in vehicle bottom plate (501) edge, bottom cushion (502) are fixed in vehicle bottom plate (501) upper strata, middle part baffle (504) are arranged in bottom cushion (502) top, guide circle axle (507) are arranged many, all install on vehicle bottom plate (501), wherein, adjacent two guide circle axle (507) pass through connecting rod (509) fixed connection, guide bearing (508) movable sleeve is located on guide circle axle (507) are connected middle part baffle (504), bracket (510) are fixed in on guide circle axle (507), side support plate (511) are fixed in bracket (510) side, slider riser (512) are fixed in side support plate (511) are positive, upper portion clamp plate (506) are fixed in slider riser (512), fly leaf (508) with slider riser (515) fixed connection.

6. The laminated cell on-line detection system of claim 5, wherein the end of the movable plate (515) penetrates out of the guide rail bottom plate (513) and is connected with a cam bearing follower (516), and the cam bearing follower (516) is in rolling contact with the gradient guide plate (401).

7. The laminated cell on-line detection system of claim 5, wherein the combined carrier (5) further comprises a spring support plate (514) and a compression spring (517);

the spring support plate (514) is far away from one end of the carrier bottom plate (501) and fixed on the guide rail bottom plate (513), the compression springs (517) are arranged between the movable plate (515) and the spring support plate (514), and the slider vertical plate (512) is in sliding connection with the guide rail bottom plate (513) through the linear guide rail (518).

8. The laminated cell on-line inspection system of claim 5, wherein the middle spacer (504) forms a cell clamp with both the carrier bottom plate (501) and the upper platen (506) in clearance.

9. The laminated cell on-line detection system according to claim 1, wherein the ends of the feeding station, the feeding conveying line (1) and the feeding robot (3) and the ends of the discharging station, the discharging conveying line (11) and the discharging robot (10) are all arranged in a triangle.