Battery cell insulation sheet assembling mechanism

Abstract

The utility model discloses a battery cell insulation sheet assembling mechanism, which comprises a rack, a plurality of groups of insulating sheet suckers are arranged on the multi-station turntable; the sheet taking manipulator is arranged at the feeding station; the dispensing unit is arranged at the dispensing station; the battery core supporting part is arranged at the insulating sheet assembling station; the battery cell pressing unit is arranged at the insulating sheet assembling station; the tab positioning unit is arranged at the insulation sheet assembly station and comprises an upper tab pressing block and a lower tab pressing block which are oppositely arranged up and down; the insulation sheet clamping unit is arranged at the insulation sheet assembly station and comprises a first clamping push block and a second clamping push block which are oppositely arranged and are respectively positioned on two sides of the battery cell bearing part, the first clamping push block and the second clamping push block can move oppositely or can be separated from each other, and when the first clamping push block and the second clamping push block move oppositely, the first clamping push block and the second clamping push block are separated from each other. The first clamping push block can abut against one end of the battery cell, and the second clamping push block can drive the insulation sheet suction cup to be close to the battery cell and enable the insulation sheet to be attached to the other end of the battery cell.

Description

Technical Field

[0001] The utility model belongs to the technical field of automated production equipment for lithium batteries, and in particular relates to an assembly mechanism for an insulating sheet of a cylindrical lithium battery cell. Background Art

[0002] During the production of cylindrical lithium-ion batteries, the positive and negative electrode sheets and separators are wound into a cell using a winding machine. Current collectors are then welded to both ends of the cell (positive and negative) to form a unified conductor. To prevent short circuits in the cell, an insulating sheet is installed at the positive end of the cell. Therefore, an insulating sheet assembly mechanism is required in the battery production line to ensure a secure installation of the insulating sheet. Utility Model Content

[0003] The purpose of the utility model is to provide a battery core insulation sheet assembly mechanism which can ensure the stability and accuracy of the insulation sheet installation.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A battery cell insulating sheet assembly mechanism comprises: a frame; a multi-station turntable arranged on the frame and rotatable around a horizontal rotation axis, wherein the multi-station turntable is provided with a plurality of groups of insulating sheet suction cups, the insulating sheet suction cups can move radially along the multi-station turntable, and when the multi-station turntable rotates, the insulating sheet suction cups are driven to pass through a loading station, a glue dispensing station and an insulating sheet assembly station in sequence; a sheet-taking robot arranged at the loading station, the sheet-taking robot is used to transfer the insulating sheet to the insulating sheet suction cup located at the loading station; a glue dispensing unit arranged at the glue dispensing station; a battery cell supporting portion for placing battery cells arranged at the insulating sheet assembly station; a battery cell pressing unit arranged at the insulating sheet assembly station, the battery cell pressing unit comprising a battery cell pressing plate located above the battery cell supporting portion, the battery cell pressing plate being movable downward The battery cell is pressed against the battery cell supporting part; a tab positioning unit is arranged at the insulating sheet assembly station, and the tab positioning unit includes an upper tab pressure block and a lower tab pressure block arranged opposite to each other, and the upper tab pressure block and the lower tab pressure block can move toward each other or separate from each other; an insulating sheet clamping unit is arranged at the insulating sheet assembly station, and the insulating sheet clamping unit includes a first clamping push block and a second clamping push block which are arranged opposite to each other and are respectively located on both sides of the battery cell supporting part, the first clamping push block and the second clamping push block can move toward each other or separate from each other, and when the first clamping push block and the second clamping push block move toward each other, the first clamping push block can be pressed against one end of the battery cell, and the second clamping push block can drive the insulating sheet suction cup to approach the battery cell along the radial direction of the multi-station turntable and fit the insulating sheet to the other end of the battery cell.

[0006] In some embodiments, the multi-station mounting plate is provided with a slide rail extending radially thereof, a suction cup slide is provided on the slide rail, and the insulating sheet suction cup is provided on the suction cup slide; the second clamping push block can drive the suction cup slide to move.

[0007] Furthermore, a buffer return spring is provided on the suction cup slide, one end of the buffer return spring is connected to the suction cup slide, and the other end is connected to the multi-station turntable.

[0008] Furthermore, the multi-station turntable is provided with a buffer limit portion located behind the suction cup slide.

[0009] In some embodiments, the film-picking robot includes a robot mounting frame fixed to the frame, a suction cup slide horizontally movably arranged on the robot mounting frame, a film-picking suction cup arranged on the suction cup slide, and a sliding drive unit that drives the suction cup slide to move.

[0010] In some embodiments, the dispensing unit includes a dispensing machine fixing frame arranged on the frame, a dispensing slide horizontally movably arranged on the dispensing machine fixing frame, a dispensing machine arranged on the dispensing slide, and a dispensing movement drive unit that drives the dispensing slide to move.

[0011] In some embodiments, the tab positioning unit also includes a first driving cam, a first driving swing arm, an upper pressure block mounting frame and a lower pressure block mounting frame, the tab upper pressure block is arranged on the upper pressure block mounting frame, and the tab lower pressure block is arranged on the lower pressure block mounting frame; the first driving cam drives the first driving swing arm to swing up and down, and the first driving swing arm drives the upper pressure block mounting frame and the lower pressure block mounting frame to move toward each other or separate from each other through a connecting rod transmission structure; the insulating sheet clamping unit also includes a second driving cam, a second driving swing arm, a first slide and a third slide, the first clamping push block is arranged on the first slide, and the second clamping push block is connected to the third slide; the second driving cam drives the second driving swing arm to swing up and down, and the second driving swing arm drives the first slide and the third slide to move toward each other or separate from each other through a connecting rod transmission structure; the first driving cam and the second driving cam are arranged on the same camshaft, and the camshaft is driven by a motor.

[0012] Furthermore, the tab positioning unit also includes a first vertical connecting rod, a second vertical connecting rod, a first reversing swing arm and a third vertical connecting rod; one end of the first vertical connecting rod is hinged to the first driving swing arm, and the other end is hinged to the first reversing swing arm, the first reversing swing arm is a straight rod swing arm, and the first reversing swing arm is set on the connecting rod bracket through a rotating shaft and can rotate around the rotating shaft; the other end of the first reversing swing arm is connected to the third vertical connecting rod; the other end of the third vertical connecting rod is connected to the upper pressure block mounting bracket; one end of the second vertical connecting rod is hinged to the first driving swing arm, and the other end is hinged to the lower pressure block mounting bracket; the upper pressure block mounting bracket and the lower pressure block mounting bracket are arranged on a longitudinal slide rail, and move up and down in opposite directions along the longitudinal slide rail when the first driving swing arm swings up and down.

[0013] Furthermore, the insulating sheet clamping unit also includes a second slide, a buffer link, a second reversing swing arm, a transverse link, a first push block mounting frame and a second push block mounting frame; one end of the buffer link is hinged to the second driving swing arm, and the other end is hinged to the second reversing swing arm, and the second reversing swing arm is set on the first push block mounting frame through a rotating shaft and can rotate around the rotating shaft; the second reversing swing arm is a T-shaped swing arm, one end of which is hinged to the buffer link, one end is movably connected to the second slide, and one end is movably connected to the second slide; the second slide is connected to the transverse link; the first slide and the second slide are spaced apart and can be horizontally movably arranged on the first push block mounting frame, and when the second steering rocker arm rotates around the rotating shaft, it drives the first slide and the second slide to move in opposite directions in the horizontal direction; the transverse link is connected to the third slide, and the third slide can be horizontally movably arranged on the second push block mounting frame.

[0014] Furthermore, the first push block mounting frame is provided with two slide seats, and the first slide and the second slide are both provided with guide rail parts that cooperate with the horizontal slide slots of the slide seats; the second push block mounting frame is provided with a slide seat, and the third slide is provided with a guide rail part that cooperates with the horizontal slide slot of the slide seat.

[0015] It can be seen from the above technical solutions that the present invention sets a multi-station turntable to realize the transplanting and transportation of the insulating sheet at the loading, gluing and insulating sheet assembly stations; a tab positioning unit is set at the insulating sheet assembly station to ensure the precision and accuracy of the insulating sheet assembly by pressing and positioning the tabs. At the same time, the insulating sheet clamping unit can realize synchronous clamping and sheet-wrapping actions on the positioned battery cells to complete the lamination of the insulating sheet so that the insulating sheet is tightly adhered to the battery cells. The battery cell clamping unit can ensure that the battery cells will not shift during the insulating sheet-wrapping process, thereby ensuring the accuracy of the insulating sheet assembly. The present invention can realize horizontal insulating sheet-wrapping of battery cells, which can reduce the occurrence of insulating sheet falling off when horizontal battery cells are transplanted, and at the same time improve the installation stability of the insulating sheet. In a specific embodiment, a swing arm clamping mechanism driven by the same cam is designed to realize synchronous sheet-wrapping and clamping functions, with a compact structure and saving of driving power source. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a structural diagram of the battery core insulation sheet assembly mechanism according to an embodiment of the present utility model;

[0018] Figure 2 This is a structural schematic diagram of the battery core insulation sheet assembly mechanism from another angle according to an embodiment of the present utility model;

[0019] Figure 3 This is a structural diagram of a multi-station turntable according to an embodiment of the present utility model;

[0020] Figure 4 This is a structural diagram of a sheet-taking robot according to an embodiment of the present invention;

[0021] Figure 5 This is a structural diagram of a dispensing unit according to an embodiment of the present utility model;

[0022] Figure 6 This is a structural diagram of a tab positioning unit according to an embodiment of the present utility model;

[0023] Figure 7 This is a structural diagram of the tab positioning unit of an embodiment of the present utility model from another angle;

[0024] Figure 8 This is a structural diagram of an insulating sheet clamping unit according to an embodiment of the present utility model;

[0025] Figure 9This is a structural schematic diagram of the insulating sheet clamping unit from another angle according to an embodiment of the present invention.

[0026] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the accompanying drawings. When describing the embodiments of the present invention in detail, for the sake of convenience, the drawings showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. It should be noted that the drawings are simplified and all use non-precise scales, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features; the terms "front", "back", "bottom", "upper", "lower", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean internal communication between two components; it can mean a wireless connection or a wired connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] like Figure 1 As shown, the battery cell insulation sheet assembly mechanism of this embodiment includes a mounting frame 1, a multi-station turntable 2, a sheet removal robot 3, a dispensing unit 4, a tab positioning unit 5, an insulation sheet clamping unit 6, a battery cell support portion 7, and a battery cell pressing unit 8. The mounting frame 1 is the mounting base for each component / unit, and each component / unit is installed on the equipment rack (not shown) of the battery production line through the mounting frame 1.

[0030] The multi-station turntable 2 is rotatably mounted on the mounting frame 1. In this embodiment, the multi-station turntable 2 rotates about a horizontally extending rotation axis driven by a turntable drive unit 9. The turntable drive unit 9 can utilize a conventional drive device such as a motor, but in this embodiment, a motor is employed. Multiple insulating sheet suction cups 2-1 are circumferentially spaced apart on the multi-station turntable 2. These vacuum suction cups 2-1 are connected to a vacuum pump (not shown) and hold the insulating sheet to be assembled by vacuum suction. In this embodiment, four groups of insulating sheet suction cups 2-1 are evenly spaced apart along the circumference of the multi-station turntable 2. As the multi-station turntable 2 rotates, each insulating sheet suction cup 2-1 positioned thereon sequentially passes through the loading station, the glue dispensing station, and the insulating sheet assembly station.

[0031] like Figure 3 As shown, the insulating sheet suction cup 2-1 of this embodiment is arranged on the suction cup slide 2-2, and the suction cup slide 2-2 is arranged on the slide rail 2-3 extending radially along the multi-station turntable 2. The suction cup slide 2-2 can move along the slide rail 2-3, thereby driving the insulating sheet suction cup 2-1 forward or backward, making it convenient to take and put the insulating sheet. Optionally, a buffer limiter 2-4 corresponding to the insulating sheet suction cup 2-1 is provided on the multi-station turntable 2. The buffer limiter 2-4 is located behind the suction cup slide 2-2 (at the end opposite to the insulating sheet suction cup 2-1). When the suction cup slide 2-2 slides backward along the slide rail 2-3, the buffer limiter 2-4 can limit the suction cup slide 2-2 so that the suction cup slide 2-2 cannot get too close to the center of the multi-station turntable 2. The buffer limiter 2-4 can be a component with a buffering effect such as a buffer or a rubber block. As the insulating sheet suction cup 2-1 moves forward with the suction cup slide 2-2, it can attach the insulating sheet to the positive terminal of the battery cell. In some embodiments, the suction cup slide 2-2 is also provided with a buffer return spring 2-5, one end of which is connected to the suction cup slide 2-2 and the other end is connected to the multi-station turntable 2. The buffer return spring 2-5 is used to provide a return force for the suction cup slide 2-2, causing it to retreat and return to its original position.

[0032] When the sheet-taking robot 3 transfers the prepared insulating sheet from the sheet-making station (not shown) of the previous process to the loading station, the sheet-taking robot 3 passes the insulating sheet to the insulating sheet suction cup 2-1, and the insulating sheet suction cup 2-1 sucks the insulating sheet. When the multi-station turntable 2-1 rotates, the insulating sheet moves with the insulating sheet suction cup 2-1 to the gluing station for gluing.

[0033] The sheet taking robot 3 is set at the loading station. Figure 4As shown, the film-taking robot 3 of this embodiment is a suction cup type robot, and the film-taking robot 3 includes a film-taking suction cup 3-1, a suction cup slide 3-2, a robot mounting frame 3-3, and a sliding drive unit 3-4. The robot mounting frame 3-3 is fixed to the frame 1, and a horizontal slide rail 3-5 is provided on the robot mounting frame 3-3. The suction cup slide 3-2 is provided on the horizontal slide rail 3-5 and can move along the horizontal slide rail 3-5 under the drive of the sliding drive unit 3-4. The film-taking suction cup 3-1 transfers the insulating film transferred from the film-making workstation to the insulating film suction cup 2-1 on the multi-station turntable 2. The film-taking suction cup 3-1 is also a vacuum suction cup. The sliding drive unit 3-4 of this embodiment adopts a cylinder.

[0034] The glue dispensing unit 4 is provided at the glue dispensing station, and is used to spray glue on the insulating sheet transported to the glue dispensing station. Figure 1 and Figure 5 As shown, the dispensing unit 4 of this embodiment includes a dispensing machine 4-1, a dispensing machine mounting bracket 4-2, a dispensing slide 4-3, and a dispensing motion drive unit 4-4. The dispensing machine mounting bracket 4-2 is mounted on the frame 1. A guide rail 4-5 is provided on the dispensing machine mounting bracket 4-2. The dispensing slide 4-3 is mounted on the guide rail 4-5 and can move along the guide rail 4-5 under the control of the dispensing motion drive unit 4-4. When the dispensing slide 4-3 moves, it can drive the dispensing machine 4-1 located on it to move horizontally back and forth, enabling glue to be sprayed in multiple positions.

[0035] like Figure 1 and Figure 2 As shown, a battery cell supporting portion 7 and a battery cell pressing unit 8 located above the battery cell supporting portion 7 are provided at the assembly station. The battery cell supporting portion 7 is used to place the battery cell 100 to be assembled with the insulating sheet, and the battery cell 100 is transferred to the battery cell supporting portion 7 from the workstation of other processes. The battery cell supporting portion 7 of this embodiment is a pair of spaced-apart support plates, and the support plates are processed with arc-shaped grooves for placing the battery cells. The battery cell pressing unit 8 includes a battery cell pressing plate 8-1 and a driving battery cell pressing plate 8-1 to press down on the battery cell placed on the battery cell supporting portion 7. During the assembly of the insulating sheet, the battery cell pressing plate 8-1 presses the battery cell to prevent the battery cell from shaking, offsetting and other phenomena that affect the accuracy of the sheet assembly, so as to ensure the accuracy of the insulation sheet assembly.

[0036] In order to ensure the accuracy of the insulation sheet assembly, this embodiment sets a tab positioning unit 5 at the assembly station. Figure 6 and Figure 7As shown, the tab positioning unit 5 of this embodiment includes an upper tab pressing block 5-1 and a lower tab pressing block 5-2. The upper tab pressing block 5-1 and the lower tab pressing block 5-2 are arranged relative to each other in an upper and lower direction. The upper tab pressing block 5-1 and the lower tab pressing block 5-2 can move toward each other, thereby compressing the tab located between the upper tab pressing block 5-1 and the lower tab pressing block 5-2, thereby guiding and positioning the battery cell during the assembly of the insulation sheet and preparing the position for the assembly of the insulation sheet. After the insulation sheet is assembled, the upper tab pressing block 5-1 and the lower tab pressing block 5-2 are separated from each other.

[0037] like Figure 8 and Figure 9 As shown, the insulating sheet clamping unit 6 of this embodiment includes a first clamping push block 6-1 and a second clamping push block 6-2. The first clamping push block 6-1 and the second clamping push block 6-2 are arranged opposite to each other on the left and right, and are respectively located on both sides of the battery cell supporting portion 7. The first clamping push block 6-1 and the second clamping push block 6-2 are at the same height as the battery cell 100. The first clamping push block 6-1 and the second clamping push block 6-2 can move relative to each other, thereby approaching or moving away from each other. The first clamping push block 6-1 is opposite to the non-tab protruding end of the battery cell. When the first clamping push block 6-1 and the second clamping push block 6-2 are close to each other, the first clamping push block 6-1 can be pressed against the end of the battery cell 100 opposite to the tab. The second clamping push block 6-2 is arranged corresponding to the suction cup slide 2-2 moved to the assembly station. When the first clamping push block 6-1 and the second clamping push block 6-2 are close to each other, the second clamping push block 6-2 can press against the suction cup slide 2-2, driving the suction cup slide 2-2 forward, so that the insulating sheet suction cup 2-1 moving forward with the suction cup slide 2-2 will stick the glue-coated insulating sheet to the end face of the protruding end of the battery cell tab. The two clamping push blocks clamp and firmly stick the insulating sheet to the positive terminal of the battery cell. After the insulating sheet is attached, the first and second clamping push blocks reset and separate from each other. At this time, the suction cup slide 2-2 is moved away from the battery cell 100 under the action of the buffer reset spring 2-5. The buffer reset spring 2-5 has a buffering effect and can provide a buffering force when the second clamping push block 6-2 pushes the insulating sheet suction cup 2-1 to stick the insulating sheet to the battery cell, so that the connection between the insulating sheet and the battery cell is flexible, reducing the possibility of damage.

[0038] As a preferred embodiment of the present invention, the clamping action of the clamping push block and the positioning and pressing action of the tab in this embodiment are completed through a transmission structure of a driving source + cam connecting rod mechanism. Only one driving source can drive the corresponding actions of the two sets of components, reducing the number of driving components and reducing costs. Moreover, through the cam transmission structure, the transmission is stable and the synchronous action of the corresponding components can be achieved.

[0039] Reference Figure 1 、 Figure 2 、 Figure 6 and Figure 7The tab positioning unit 5 of this embodiment further includes a first drive cam 5-3, a first drive swing arm 5-4, a first vertical connecting rod 5-5, a second vertical connecting rod 5-6, a first reversing swing arm 5-7, and a third vertical connecting rod 5-8. The first drive cam 5-3 is disposed on a camshaft (not shown) driven by a motor (not shown) and can rotate with the camshaft. A first cam contact protrusion 5-4a is disposed on the first drive swing arm 5-4. When the first drive cam 5-3 rotates, its outer contour always contacts the first cam contact protrusion 5-4a, thereby enabling the first drive swing arm 5-4 to swing up and down according to the contour curve of the first drive cam 5-3.

[0040] One end of the first vertical connecting rod 5-5 is hinged to the first driving swing arm 5-4, and the other end is hinged to the first reversing swing arm 5-7. The first reversing swing arm 5-7 is mounted on the equipment frame (not shown) via a connecting rod bracket 5-9. The first reversing swing arm 5-7 is a straight rod swing arm, which is mounted on the connecting rod bracket 5-9 via a rotating shaft and can rotate around the rotating shaft. The other end of the first reversing swing arm 5-7 is connected to the third vertical connecting rod 5-8. The other end of the third vertical connecting rod 5-8 is connected to the upper pressure block mounting frame 5-10, and the upper lug pressure block 5-1 is mounted on the upper pressure block mounting frame 5-10.

[0041] One end of the second vertical connecting rod 5-6 is hinged to the first driving swing arm 5-4, and the other end is hinged to the lower pressure block mounting frame 5-11. The tab lower pressure block 5-2 is set on the lower pressure block mounting frame 5-11. The upper pressure block mounting frame 5-10 and the lower pressure block mounting frame 5-11 are both set on a longitudinal slide rail 5-12 through sliders. The longitudinal slide rail 5-12 is fixed to the equipment frame, and the upper pressure block mounting frame 5-10 and the lower pressure block mounting frame 5-11 can both move up and down along the longitudinal slide rail 5-12, realizing relative movement of the tab upper pressure block 5-1 and the tab lower pressure block 5-2 during the up and down movement.

[0042] Reference Figure 1 、 Figure 2 、 Figure 8 and Figure 9 The insulating sheet clamping unit 6 of this embodiment also includes a second drive cam 6-3, a second drive swing arm 6-4, a buffer link 6-5, a second reversing swing arm 6-6, and a transverse link 6-7. The second drive cam 6-3 and the first drive cam 5-3 are mounted on the same camshaft. When the camshaft rotates, it simultaneously drives the first and second drive cams 5-3 and 6-3 to rotate. The second drive swing arm 6-4 is provided with a second cam contact protrusion 6-4a. When the second drive cam 6-3 rotates, its outer contour always contacts the second cam contact protrusion 6-4a, thereby causing the second drive swing arm 6-4 to swing up and down according to the contour curve of the second drive cam 6-3. By setting the cams to corresponding contours, the first and second drive swing arms 5-4 and 6-4 can move in a corresponding manner.

[0043] One end of the buffer link 6-5 is hinged to the second drive swing arm 6-4, and the other end is hinged to the second reversing swing arm 6-6. The second reversing swing arm 6-6 is a T-shaped swing arm, which is mounted on the first push block mounting bracket 6-8 via a rotating shaft and can rotate about the rotating shaft. The buffer link 6-5 is hinged to one end of the T-shaped swing arm, the first slide 6-9 is movably connected to one end of the T-shaped swing arm, and the second slide 6-10 is movably connected to one end of the T-shaped swing arm. When the second steering swing arm 6-6 rotates about the rotating shaft driven by the buffer link 6-5, it can drive the first slide 6-9 and the second slide 6-10 to move in opposite directions in the horizontal direction.

[0044] A first clamping push block 6-1 is mounted on the first slide 6-9, and the second slide 6-10 is connected to a second push block mounting frame 6-11 on which the second clamping push block 6-2 is mounted via a transverse connecting rod 6-7. Thus, when the first slide 6-9 and the second slide 6-10 are driven by the second reversing swing arm 6-6 to move, the first clamping push block 6-1 and the second clamping push block 6-2 can move toward each other or apart from each other. The first push block mounting frame 6-8 and the second push block mounting frame 6-12 are both fixed to the equipment frame.

[0045] In this embodiment, two slide blocks are provided on the first push block mounting frame 6-8. The first slide 6-9 and the second slide 6-10 are each provided with a guide rail portion that cooperates with the horizontal slide blocks of the slide blocks, so that the first slide 6-9 and the second slide 6-10 can be horizontally moved on the first push block mounting frame 6-8. The third slide 6-11 is horizontally moved on the second push block mounting frame 6-12. Similarly, the second push block mounting frame 6-12 is provided with a slide block, and the third slide 6-11 is provided with a guide rail portion that cooperates with the horizontal slide blocks of the slide blocks. The second clamping push block 6-2 is connected to the third slide 6-11. When the second driving swing arm 6-4 swings, the first and second clamping push blocks are driven toward or away from each other through the transmission of the buffer link 6-5, the second reversing swing arm 6-6, and the transverse link 6-7.

[0046] The operation process of the battery cell insulation sheet assembly mechanism of this embodiment will be described below with reference to the accompanying drawings.

[0047] After the sheet-taking robot 3 picks up the insulating sheet to be assembled on the battery cell 100 from the sheet-making station, it moves the insulating sheet to the loading station and transfers the insulating sheet to the insulating sheet suction cup 2-1 located at the loading station on the multi-station turntable 2;

[0048] The multi-station turntable 2 rotates, driving the insulation sheet suction cup 2-1 with the insulation sheet adsorbed thereon to move to the glue dispensing station, and the glue dispensing unit 4 sprays glue on the insulation sheet;

[0049] The multi-station turntable 2 continues to rotate, driving the insulating sheet suction cup 2-1 coated with glue to move to the insulating sheet assembly station, and the battery cell pressing plate 8-1 moves downward to press the battery cell 100 onto the battery cell supporting portion 7;

[0050] The camshaft rotates under the drive of the motor, and first drives the connecting rod transmission structure composed of the first driving swing arm 5-4, the first vertical connecting rod 5-5, the second vertical connecting rod 5-6, the first reversing swing arm 5-7 and the third vertical connecting rod 5-8 through the first driving cam 5-3, so that the upper tab pressing block 5-1 and the lower tab pressing block 5-2 clamp the tab of the battery cell 100 to achieve the positioning of the battery cell;

[0051] Driven by the camshaft, the second driving cam 6-3 drives the connecting rod transmission structure composed of the second driving swing arm 6-4, the buffer connecting rod 6-5, the second reversing swing arm 6-6 and the transverse connecting rod 6-7, so that the first clamping push block 6-1 and the second clamping push block 6-2 move toward each other. The first clamping push block 6-1 presses against the end of the battery cell 100 opposite to the pole tab, and the second clamping push block 6-2 pushes the suction cup slide 2-2 toward the positive terminal (the protruding end of the pole tab) of the battery cell 100. The insulating sheet suction cup 2-1 provided on the suction cup slide 2-2 sticks the glue-coated insulating sheet to the end of the battery cell. The clamping action of the two clamping push blocks makes the insulating sheet firmly stick to the battery cell.

[0052] After the insulating sheet is attached, the multi-station turntable 2 rotates, and the insulating sheet suction cup 2-1 located thereon moves to the corresponding station, and continues to repeat the process of obtaining the insulating sheet from the sheet-taking robot 3, applying glue, and attaching the insulating sheet.

[0053] 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 one 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 battery core insulation sheet assembly mechanism, characterized in that: include: frame; A multi-station turntable is arranged on the frame and can rotate around a horizontal rotation axis. The multi-station turntable is provided with a plurality of groups of insulating sheet suction cups. The insulating sheet suction cups can move along the radial direction of the multi-station turntable. When the multi-station turntable rotates, the insulating sheet suction cups are driven to pass through the loading station, the dispensing station and the insulating sheet assembly station in sequence; A sheet-taking robot provided at the loading station, the sheet-taking robot being used to transfer the insulating sheet to the insulating sheet suction cup located at the loading station; A dispensing unit provided at the dispensing station; A cell supporting portion provided at the insulating sheet assembly station for placing the cell; A cell pressing unit is provided at the insulating sheet assembly station, the cell pressing unit comprising a cell pressing plate located above the cell supporting portion, the cell pressing plate being movable downward to press the cell against the cell supporting portion; A tab positioning unit is provided at the insulating sheet assembly station, wherein the tab positioning unit comprises an upper tab pressing block and a lower tab pressing block which are arranged opposite to each other, and the upper tab pressing block and the lower tab pressing block can move toward each other or separate from each other; An insulating sheet clamping unit is provided at the insulating sheet assembly station, and the insulating sheet clamping unit includes a first clamping push block and a second clamping push block which are arranged opposite to each other and are respectively located on both sides of the battery cell supporting portion. The first clamping push block and the second clamping push block can move toward each other or separate from each other. When the first clamping push block and the second clamping push block move toward each other, the first clamping push block can be pressed against one end of the battery cell, and the second clamping push block can drive the insulating sheet suction cup to approach the battery cell along the radial direction of the multi-station turntable and fit the insulating sheet to the other end of the battery cell.

2. The battery core insulation sheet assembly mechanism according to claim 1, wherein: The multi-station turntable is provided with a slide rail extending along its radial direction, the slide rail is provided with a suction cup slide, and the insulation sheet suction cup is provided on the suction cup slide; the second clamping push block can drive the suction cup slide to move.

3. The battery core insulation sheet assembly mechanism according to claim 2, wherein: A buffer return spring is provided on the suction cup slide, one end of the buffer return spring is connected to the suction cup slide, and the other end is connected to the multi-station turntable.

4. The battery core insulation sheet assembly mechanism according to claim 2, wherein: The multi-station turntable is provided with a buffer limiting portion located behind the suction cup slide.

5. The battery core insulation sheet assembly mechanism according to claim 1, wherein: The film-taking robot includes a robot mounting frame fixed to the frame, a suction cup slide horizontally movably arranged on the robot mounting frame, a film-taking suction cup arranged on the suction cup slide, and a sliding drive unit driving the suction cup slide to move.

6. The battery core insulation sheet assembly mechanism according to claim 1, wherein: The dispensing unit includes a dispensing machine fixing frame arranged on the frame, a dispensing slide arranged horizontally movably on the dispensing machine fixing frame, a dispensing machine arranged on the dispensing slide, and a dispensing movement driving unit driving the dispensing slide to move.

7. The battery core insulation sheet assembly mechanism according to claim 1, wherein: The tab positioning unit further includes a first driving cam, a first driving swing arm, an upper pressure block mounting frame and a lower pressure block mounting frame, wherein the upper pressure block of the tab is arranged on the upper pressure block mounting frame, and the lower pressure block of the tab is arranged on the lower pressure block mounting frame; the first driving cam drives the first driving swing arm to swing up and down, and the first driving swing arm drives the upper pressure block mounting frame and the lower pressure block mounting frame to move toward each other or separate from each other through a connecting rod transmission structure; The insulating sheet clamping unit further includes a second driving cam, a second driving swing arm, a first slide, and a third slide. The first clamping push block is disposed on the first slide, and the second clamping push block is connected to the third slide. The second driving cam drives the second driving swing arm to swing up and down, and the second driving swing arm drives the first slide and the third slide to move toward or away from each other through a connecting rod transmission structure. The first driving cam and the second driving cam are arranged on the same camshaft, and the camshaft is driven by a motor.

8. The battery core insulation sheet assembly mechanism according to claim 7, wherein: The tab positioning unit further includes a first vertical connecting rod, a second vertical connecting rod, a first reversing swing arm and a third vertical connecting rod; One end of the first vertical connecting rod is hinged to the first driving swing arm, and the other end is hinged to the first reversing swing arm. The first reversing swing arm is a straight rod swing arm, which is arranged on the connecting rod bracket through a rotating shaft and can rotate around the rotating shaft. The other end of the first reversing swing arm is connected to the third vertical connecting rod. The other end of the third vertical connecting rod is connected to the upper pressure block mounting frame. One end of the second vertical connecting rod is hinged to the first driving swing arm, and the other end is hinged to the lower pressure block mounting frame; The upper pressing block mounting frame and the lower pressing block mounting frame are arranged on a longitudinal sliding rail, and move up and down in opposite directions along the longitudinal sliding rail when the first driving swing arm swings up and down.

9. The battery core insulation sheet assembly mechanism according to claim 7, wherein: The insulating sheet clamping unit further includes a second slide, a buffer link, a second reversing swing arm, a transverse link, a first push block mounting frame and a second push block mounting frame; One end of the buffer link is hinged to the second driving swing arm, and the other end is hinged to the second reversing swing arm. The second reversing swing arm is arranged on the first push block mounting frame through a rotating shaft and can rotate around the rotating shaft. The second reversing swing arm is a T-shaped swing arm, one end of which is hinged to the buffer link, one end of which is movably connected to the second slide, and one end of which is movably connected to the second slide; the second slide is connected to the transverse link; The first slide and the second slide are spaced apart and are both horizontally movably arranged on the first push block mounting frame, and the second reversing swing arm drives the first slide and the second slide to move in opposite directions in the horizontal direction when rotating around the rotating shaft; The transverse connecting rod is connected to the third sliding frame, and the third sliding frame is horizontally movably arranged on the second push block mounting frame.

10. The battery core insulation sheet assembly mechanism according to claim 9, wherein: The first push block mounting frame is provided with two slide slot seats, and the first slide and the second slide are both provided with guide rail portions that cooperate with the horizontal slide slots of the slide slot seats; The second push block mounting frame is provided with a slide groove seat, and the third slide frame is provided with a guide rail portion that matches the horizontal slide groove of the slide groove seat.

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