Double-station battery cell dynamic shell entering mechanism

Abstract

The utility model discloses a double-station mechanism for dynamically loading a battery cell into a shell. The mechanism comprises a positioning and carrying mechanism and a shell loading and folding mechanism, and a manipulator transfer compensation assembly is mounted on a linear module of the positioning and carrying mechanism, and is used for sucking, transferring and fixing the battery cell. The mechanical arm transfer compensation assembly comprises a material taking mechanical arm and a shell entering mechanical arm. The device has the beneficial effects that a plurality of detection cameras are adopted to collect the position deviation generated in the transferring process of the battery cell and the aluminum plastic film pit opening, and after the position deviation information is collected, the position deviation information is transmitted to the shell feeding manipulator or the material taking manipulator; and then the position deviation of the battery cell or the aluminum plastic film pit opening in the movement process of the battery cell and the aluminum plastic film is compensated according to the position deviation information, so that the placement accuracy of the battery cell in the central area of the aluminum plastic film pit opening is effectively improved, the risks of short circuit, liquid leakage, expansion and other problems of the battery are reduced, the yield of the battery is improved, and the production speed is increased.

Description

Technical Field

[0001] The utility model relates to the field of battery core coating equipment, in particular to a double-station battery core dynamic shell insertion mechanism. Background Art

[0002] Battery encapsulation is a crucial step in the battery manufacturing process, involving the secure wrapping of batteries with aluminum-plastic film. The encapsulation process involves cutting a sheet of aluminum-plastic film to a specific size; then, punching a notch in the film to accommodate the battery cell; then, precisely positioning the bare cell in the center of the notch; then, folding the film in half to securely fit the entire battery; and finally, heat-sealing the film.

[0003] While there are numerous automated wrapping machines available on the market that can encapsulate battery cells in aluminum-plastic film, these machines, when used on battery packaging production lines, cannot guarantee that the bare cells are always centered within the aluminum-plastic film opening after each placement. This often results in cells being placed off-center, making it impossible to accurately and reliably and efficiently perform mass packaging. Furthermore, this off-center placement directly increases battery defect rates, reduces quality, and impacts production efficiency. Utility Model Content

[0004] (1) Problems to be solved

[0005] The technical problem to be solved by the utility model is to provide a dual-station battery core dynamic shell insertion mechanism in view of the current status of the existing technology.

[0006] (2) Technical solution

[0007] The present invention is realized through the following technical solutions: The present invention proposes a dual-station dynamic shell-entry mechanism for battery cells, including a positioning and transporting mechanism and a shell-entry folding mechanism. A manipulator transport compensation component is installed on the linear module of the positioning and transporting mechanism, and the manipulator transport compensation component is used to absorb, transfer, and fix the battery cells. The manipulator transport compensation component includes a material-picking manipulator and a shell-entry manipulator. In the material-picking action of the material-picking manipulator, after the material-picking manipulator receives the first misalignment offset signal, the material-picking manipulator adjusts the position of the suction device one according to the first misalignment offset to compensate for the first misalignment offset. In the first shell-entry action of the shell-entry manipulator, after the shell-entry manipulator receives the second misalignment offset signal, the material-picking manipulator adjusts the position of the suction device two according to the second misalignment offset to compensate for the second misalignment offset. In the second shell-entry action of the shell-entry manipulator, after the shell-entry manipulator receives the third misalignment offset, the material-picking manipulator adjusts the position of the suction device two according to the third misalignment offset to compensate for the third misalignment offset.

[0008] By adopting the above technical solution, during the process of the material retrieving robot and the shell inserting robot handling the battery cells, the material retrieving robot collects the position offset information of the battery cells at the loading platform end and compensates for the offset, so that the battery cells are in the accurate process position; after collecting the position offset information of the aluminum-plastic film on the shell inserting folding mechanism, the shell inserting robot performs the first shell inserting action and compensates for the offset; then, the shell inserting robot collects the position offset information of the battery cells within the aluminum-plastic film pit and compensates for the position offset when performing the second shell inserting action, so that the battery cells are in the center of the pit; finally, the suction plate of the first suction device presses the battery cells from above, and the vacuum suction nozzle fixes the battery cells from below. After the aluminum-plastic film is flipped and wrapped, the suction plate of the first suction device is withdrawn, thus completing the wrapping process. This method greatly improves the placement accuracy of the battery cells in the center area of the aluminum-plastic film pit, improves the battery yield rate, and speeds up production.

[0009] Furthermore, the shell folding mechanism includes a folding fixture and a folding drive device for flipping a folding plate in the folding fixture, and the folding plate is movably connected to the fixed support plate.

[0010] Furthermore, a first photographing mechanism that avoids the moving trajectory of the material-grabbing robot is arranged at one end of the linear module; a cell loading assembly is placed correspondingly below the bare cell camera of the first photographing mechanism, and the cell loading assembly includes a cell loading platform for placing the cell, a loading positioning cylinder for fixing the cell, and a loading positioning clamp; a light source board is installed below the cell loading platform, and the loading connecting block of the cell loading platform is connected to the slider of the screw module.

[0011] Furthermore, the other end of the linear module is connected to a second photographing mechanism, which is arranged on the back opposite to the material-retrieving robot. A shift module is arranged correspondingly below the film-connecting camera of the second photographing mechanism, and the shell folding mechanism is installed on the sliding plate of the shift module.

[0012] Furthermore, a shell entry position camera is installed on the shell entry robot, and a light source board 2 for illuminating the flip fixture is correspondingly installed on the shell entry folding mechanism.

[0013] Furthermore, a tab shaping platform is arranged between the battery cell loading assembly and the shift module. The end of the tab shaping platform where the battery cell is placed is provided with a vacuum suction nozzle for fixing the battery cell, a pressing plate for pressing the battery cell tab and a tab pressing cylinder.

[0014] Furthermore, the folding drive device is connected to the folding plate, and the folding drive device includes a motor-synchronous belt structure.

[0015] Furthermore, the shell entry robot includes a screw structure and a spiral ball screw spline for driving the suction device 2 to move forward and backward; the spiral ball screw spline is used to drive the suction device 2 to move up and down and / or rotate.

[0016] Furthermore, the first suction device includes a suction rod, and the second suction device includes a suction plate for adhering to the battery cell.

[0017] Furthermore, the linear module is a multi-motor linear motor module, and the multi-motor linear motor module is mounted on a module mounting frame.

[0018] (3) Beneficial effects

[0019] The utility model adopts multiple detection cameras to collect the position offset of the battery cell and the aluminum-plastic film pit during the transfer process, and transmits the position offset information to the shell insertion robot or the material removal robot after collecting the position offset information; then, according to the position offset information, the position offset of the battery cell or the aluminum-plastic film pit during the movement of the battery cell and the aluminum-plastic film is compensated, which effectively increases the accuracy of the placement of the battery cell in the center area of the aluminum-plastic film pit, reduces the risk of battery short circuit, leakage, expansion and other problems, improves the battery yield and speeds up the production speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0021] Figure 1 This is a three-dimensional diagram of a dual-station battery core dynamic shell insertion mechanism described in the utility model;

[0022] Figure 2 This is a three-dimensional diagram of the positioning and transporting mechanism in the dual-station battery core dynamic shell insertion mechanism described in the utility model (I);

[0023] Figure 3 This is a three-dimensional diagram (2) of the positioning and transporting mechanism in the dual-station battery core dynamic shell insertion mechanism described in the present invention;

[0024] Figure 4 This is a three-dimensional diagram of the shell-entry and folding mechanism in the dual-station battery core dynamic shell-entry mechanism described in the present invention;

[0025] Figure 5 This is a three-dimensional diagram of a battery cell loading assembly in a dual-station battery cell dynamic shell insertion mechanism described in the present invention;

[0026] Figure 6 This is a three-dimensional diagram of the tab shaping platform in the dual-station dynamic shell-entry mechanism of the utility model;

[0027] Figure 7 This is a three-dimensional diagram of a material-retrieving manipulator in a dual-station battery core dynamic shell-feeding mechanism described in the present invention;

[0028] Figure 8This is a three-dimensional diagram of a shell insertion manipulator in a dual-station battery core dynamic shell insertion mechanism described in the present invention;

[0029] The reference numerals are as follows:

[0030] 1. Positioning and transporting mechanism; 2. Shell-feeding and folding mechanism; 100. Linear module; 101. Manipulator transfer compensation component; 102. Retrieving manipulator; 103. Shell-feeding manipulator; 104. Suction device 1; 105. Suction device 2; 106. Screw structure; 107. Spiral ball screw spline; 108. Suction rod; 109. Suction plate; 110. First camera mechanism; 111. Bare cell camera; 112. Cell loading assembly; 113. Cell loading platform; 114. Loading positioning cylinder; 115. Loading positioning clamp; 116. Light source board 1; 1 17. Feeding connection block; 118. Screw module; 119. Slider; 120. Second camera mechanism; 121. Film connection position camera; 122. Shell insertion position camera; 130. Tab shaping platform; 131. Vacuum suction nozzle; 132. Pressing plate; 133. Tab pressing cylinder; 140. Multi-motor linear motor module; 141. Module mounting frame; 200. Flip fixture; 201. Folding plate; 202. Folding drive device; 203. Support plate; 204. Shift module; 205. Sliding plate; 206. Light source board 2; 207. Motor-synchronous belt structure. DETAILED DESCRIPTION

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

[0032] In the description of this application, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0033] See also Figures 1-8The present invention provides a technical solution: a dual-station dynamic shelling mechanism for battery cells, comprising a positioning and transporting mechanism 1 and a shelling and folding mechanism 2. A manipulator transfer compensation component 101 is installed on the linear module 100 of the positioning and transporting mechanism 1, and the manipulator transfer compensation component 101 is used to suck, transfer, and fix the battery cells. The manipulator transfer compensation component 101 includes a material picking manipulator 102 and a shelling manipulator 103. In the material picking action of the material picking manipulator 102, after the material picking manipulator 102 receives the first misalignment offset signal, the material picking manipulator 102 adjusts the position of the suction device 1 104 according to the first misalignment offset to compensate for the first misalignment offset. In the first shelling action of the shelling manipulator 103, after the shelling manipulator 103 receives the second misalignment offset signal, the material picking manipulator 102 adjusts the position of the suction device 2 105 according to the second misalignment offset to compensate for the second misalignment offset. During the second placement operation of the shell insertion robot 103, after the shell insertion robot 103 receives the third offset, the material removal robot 102 adjusts the position of the second suction device 105 based on the third offset to compensate for the third offset; after the compensation, the battery cell is centered within the aluminum-plastic film pit. Subsequently, the suction plate 109 of the first suction device 104 presses the battery cell from above, while the vacuum nozzle 131 secures the battery cell from below. After the aluminum-plastic film is turned over and wrapped, the suction plate 109 of the first suction device 104 is withdrawn, completing the film wrapping process.

[0034] Specifically, the shell-entry folding mechanism 2 includes a flip fixture 200 and a folding driving device 202 for flipping a folding plate 201 in the flip fixture 200 . The folding plate 201 is movably connected to a fixing plate 203 .

[0035] Specifically, a first camera mechanism 110 is positioned at one end of the linear module 100, avoiding the movement path of the retrieving robot 102. A cell loading assembly 112 is positioned directly below the bare cell camera 111 of the first camera mechanism 110. This assembly includes a cell loading platform 113 for placing the cells, a loading positioning cylinder 114 for securing the cells, and a loading positioning clamp 115. A light source board 116 is mounted below the cell loading platform 113. The loading connection block 117 of the cell loading platform 113 is connected to the slider 119 of the screw module 118. After the cells are placed on the cell loading platform 113, the bare cell camera 111 and the light source board 116 below the glass plate work together to take photos. This causes the two screw modules 118 to move forward and backward until the cells align. The loading positioning cylinder 114 then drives the loading positioning clamp 115 to open and close, securing the left and right positions of the cells. At the same time, the bare cell camera 111 takes pictures and provides position feedback to complete the first step of CCD camera detection.

[0036] Specifically, the other end of the linear module 100 is connected to a second photographing mechanism 120, and the second photographing mechanism 120 is arranged on the back opposite to the material picking robot 102. A shift module 204 is arranged correspondingly below the film connection position camera 121 of the second photographing mechanism 120, and the shell entry folding mechanism 2 is installed on the sliding plate 205 of the shift module 204. When the aluminum-plastic film is placed on the shell entry folding mechanism 2, the shift module 204 drives the shell entry folding mechanism 2 to move to the bottom 103 of the shell entry robot; during the shifting process, the film connection position camera 121 will take pictures to collect the position offset information of the aluminum-plastic film on the flipping fixture 200.

[0037] Specifically, the shell insertion robot 103 is equipped with a shell insertion position camera 122 , and the shell insertion and folding mechanism 2 is correspondingly equipped with a light source board 206 for illuminating the flipping fixture 200 .

[0038] Specifically, a tab shaping platform 130 is located between the cell loading assembly 112 and the shift module 204. The end of the tab shaping platform 130, where the cell is placed, is equipped with a vacuum nozzle 131 for securing the cell, a pressing plate 132 for pressing the cell tabs, and a tab pressing cylinder 133. After the retrieving robot 102 places the cell on the tab folding and shaping platform 130, the vacuum nozzle 131 secures the cell in place. Simultaneously, the tab pressing cylinder 133 drives the pressing plate 132 (a steel block) upward to fold the tab. After folding the tabs, the shell insertion robot 103 removes the cell.

[0039] Specifically, the folding drive device 202 is connected to the folding plate 201 and includes a motor-synchronous belt structure 207. After the aluminum-plastic film is placed in the shell-entry folding mechanism 2 in the previous step, the film is moved back and forth by a linear motor and up and down by a servo motor and a lead screw, moving the film to the battery cell shell entry position. The shell-entry robot 103 then moves the battery cell into the aluminum-plastic film for shell entry. Under the illumination of the shell entry light source on the light source board 206, the shell entry position camera 122 captures the position of the bare battery cell in the aluminum-plastic film shell pit and provides position feedback to complete the third step of CCD camera detection. After confirming the position offset of the battery cell in the aluminum film pit, the offset information is transmitted to the shell-entry robot 103 for position compensation. Once the battery cell is shelled, the flipping fixture 200 in the mechanism is driven by the motor-synchronous belt structure 207, causing the aluminum-plastic film to fold to the specified position.

[0040] Specifically, the shell insertion robot 103 includes a screw structure 106 and a spiral ball screw spline 107 for driving the second suction device 105 to move forward and backward; the spiral ball screw spline 107 is used to drive the second suction device 105 to move up and down and / or rotate.

[0041] Specifically, the first suction device 104 includes a suction rod 108, and the second suction device 105 includes a suction plate 109 for adhering to the battery cell. The suction rod 108 and the suction plate 109 are both detachable and replaceable, and after replacement, they can be used for coating work of battery cells of other sizes and specifications.

[0042] Specifically, the linear module 100 is a multi-motor linear motor module 140 , and the multi-motor linear motor module 140 is mounted on a module mounting frame 141 .

[0043] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A dual-station battery cell dynamic shell insertion mechanism, characterized in that: include: Positioning and transporting mechanism and shell-entry and folding mechanism; a manipulator transfer compensation component is installed on the linear module of the positioning and transporting mechanism, and the manipulator transfer compensation component is used to absorb, transfer and fix the battery core; the manipulator transfer compensation component includes a material picking manipulator and a shell-entry manipulator; in the material picking action of the material picking manipulator, after the material picking manipulator receives the first misalignment offset signal, the material picking manipulator adjusts the position of the suction device one according to the first misalignment offset to compensate for the first misalignment offset; in the first shell-entry action of the shell-entry manipulator, after the shell-entry manipulator receives the second misalignment offset signal, the material picking manipulator adjusts the position of the suction device two according to the second misalignment offset to compensate for the second misalignment offset; in the second shell-entry action of the shell-entry manipulator, after the shell-entry manipulator receives the third misalignment offset, the material picking manipulator adjusts the position of the suction device two according to the third misalignment offset to compensate for the third misalignment offset.

2. The dual-station battery cell dynamic shell insertion mechanism according to claim 1, characterized in that: The shell-entry folding mechanism includes a folding fixture and a folding drive device for flipping a folding plate in the folding fixture, and the folding plate is movably connected to the fixed support plate.

3. The dual-station battery cell dynamic shell insertion mechanism according to claim 2, characterized in that: A first photographing mechanism is arranged at one end of the linear module to avoid the moving trajectory of the material-grabbing robot; a cell loading assembly is arranged correspondingly below the bare cell camera of the first photographing mechanism, and the cell loading assembly includes a cell loading platform for placing the cell, a loading positioning cylinder for fixing the cell and a loading positioning clamp; a light source board is installed below the cell loading platform, and the loading connecting block of the cell loading platform is connected to the slider of the screw module.

4. The dual-station battery cell dynamic shell insertion mechanism according to claim 3, characterized in that: The other end of the linear module is connected to a second photographing mechanism, which is arranged on the back opposite to the material-retrieving robot. A shift module is arranged correspondingly below the film-joining camera of the second photographing mechanism, and the shell folding mechanism is installed on the sliding plate of the shift module.

5. The dual-station battery cell dynamic shell insertion mechanism according to claim 4, characterized in that: The shell insertion robot is equipped with a shell insertion position camera, and the shell insertion folding mechanism is correspondingly equipped with a second light source board for illuminating the flipping fixture.

6. The dual-station battery cell dynamic shell insertion mechanism according to claim 5, characterized in that: A tab shaping platform is arranged between the battery cell loading assembly and the shift module. One end of the tab shaping platform where the battery cell is placed is provided with a vacuum suction nozzle for fixing the battery cell, a pressing plate for pressing the battery cell tab, and a tab pressing cylinder.

7. The dual-station battery cell dynamic shell insertion mechanism according to claim 2, characterized in that: The folding drive device is connected to the folding plate, and the folding drive device includes a motor-synchronous belt structure.

8. The dual-station battery cell dynamic shell insertion mechanism according to claim 1, characterized in that: The shell entry robot includes a screw structure and a spiral ball screw spline for driving the second suction device to move forward and backward; the spiral ball screw spline is used to drive the second suction device to move up and down and / or rotate.

9. The dual-station battery cell dynamic shell insertion mechanism according to claim 8, characterized in that: The first suction device includes a suction rod, and the second suction device includes a suction plate for adhering to and adsorbing the battery core.

10. The dual-station battery cell dynamic shell insertion mechanism according to claim 1, characterized in that: The linear module is a multi-motor linear motor module, and the multi-motor linear motor module is installed on a module mounting frame.

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