Multi-piece cell grouping and gluing equipment

Abstract

The application discloses a multi-piece battery cell grouping and rubber pasting equipment, which comprises a machine table, X-axis magnetic drive linear modules, vacuum suction tables, negative pressure suction heads and rearward-retracting flying feeder. A plurality of X-axis magnetic drive linear modules are arranged on the machine table, a plurality of moving block sliders are arranged on each X-axis magnetic drive linear module, a vacuum suction table is arranged on the moving block slider, a gantry is arranged above the X-axis magnetic drive linear module, and a plurality of YZ two-axis servo linear modules are arranged on the gantry. Through the above mode, the multi-piece battery cell grouping and rubber pasting equipment is provided, a grouping work station is arranged to solve the battery cell arrangement problem, and the X-axis magnetic drive linear module is used to synchronously and batchly realize selective foam rubber tape pasting according to the grouping process requirement. The multi-piece battery cell grouping and rubber pasting equipment can effectively avoid the problems of missing pasting and multiple pasting, and can greatly improve the production efficiency.

Description

Technical Field

[0001] This invention relates to the field of lithium battery pack production equipment, and more particularly to a multi-cell assembly and adhesive bonding equipment. Background Technology

[0002] Lithium battery packs are typically assembled from multiple pouch cells. Current technology usually uses manual adhesive bonding to combine multiple cells together. However, manual adhesive bonding can lead to problems such as over-bonding, crooked bonding, missing bonding, and incorrect bonding on the front and back sides. This results in unreliable electrical connection after the cells are assembled, leading to low production efficiency and unacceptable yield of finished products. Summary of the Invention

[0003] The main technical problem solved by this invention is to provide a multi-cell assembly and adhesive application equipment, equipped with an assembly station to solve the cell arrangement problem. At the same time, it uses an X-axis magnetic drive linear module to synchronously and batch-apply selective foam tape according to the assembly process requirements, which can not only effectively avoid the problems of missed or excessive application, but also greatly improve production efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a multi-cell assembly and adhesive application equipment, including a machine base, an X-axis magnetic drive linear module, a vacuum suction table, a negative pressure suction head, and a retractable feeder. The machine base is equipped with multiple X-axis magnetic drive linear modules, each of which is equipped with several moving sliders. A vacuum suction table is mounted on the moving sliders. A gantry frame is mounted directly above the X-axis magnetic drive linear modules, and several YZ two-axis servo linear modules are mounted on the gantry frame. Each YZ two-axis servo linear module is equipped with a set of blade cylinders carrying negative pressure suction heads. Each set of negative pressure suction heads reciprocates with the vacuum suction table and the retractable feeder through each YZ two-axis servo linear module.

[0005] In a preferred embodiment of the present invention, the machine tool is further provided with a matching station along the X-axis magnetic drive linear module. The matching station is equipped with a Y-axis slide cylinder, a Z-axis slide cylinder is mounted on the Y-axis slide cylinder, and a rotary cylinder is horizontally mounted on the Z-axis slide cylinder. The rotation axis of the rotary cylinder is matched to the upward Y-axis. An air distribution block is mounted on the rotary cylinder, and a negative pressure suction head is connected to the air distribution block. The negative pressure suction head is embedded with multiple vacuum suction cups that connect to the air distribution block. The vacuum suction cups are connected to a vacuum suction table. The vacuum suction cups are used to flip the adhesive-coated surface of the battery cell facing upward by 180° downward. The vacuum suction cups are used to match multiple battery cells with the adhesive-coated surface facing upward with at least one battery cell with the adhesive-coated surface facing downward in a group of battery cells.

[0006] In a preferred embodiment of the present invention, a Z-axis servo linear module is suspended on the gantry frame, and an auxiliary suction head is installed on the Z-axis servo linear module. The auxiliary suction head alternately docks with the negative pressure suction head and the vacuum suction stage, and the auxiliary suction head is used to put the flipped battery cell back into the vacuum suction stage.

[0007] In a preferred embodiment of the present invention, the gantry is further provided with a third Y-axis linear module spanning all X-axis magnetic drive linear modules at the downstream end of the X-axis magnetic drive linear module. The third Y-axis linear module is equipped with an inkjet printer, which is vertically connected to each vacuum suction platform.

[0008] In a preferred embodiment of the present invention, the inkjet printer is equipped with a code reader; the machine base is equipped with a defect detection camera at the end of the X-axis magnetic drive linear module, and the defect detection camera is vertically facing each vacuum suction stage.

[0009] In a preferred embodiment of the present invention, the blade cylinder comprises four blade cylinders: a first blade, a second blade, a third blade, and a fourth blade. The second and third blades are mounted side-by-side and centered on a back plate via the same mounting block. The back plate has horizontal rails on both sides of the mounting block, and each rail has a carrier plate mounted on it. The first and fourth blades are respectively mounted on their respective carrier plates and aligned with the second and third blades. The first blade is connected to a first split cylinder via a connector, and the fourth blade is connected to a second split cylinder via a connector. The first and second split cylinders are horizontally and symmetrically arranged in opposite directions on the back plate. The first split cylinder is used to pull the first and third blades apart and apply adhesive at a fixed point. The second split cylinder is used to pull the second and fourth blades apart and apply adhesive at a fixed point. The first and second split cylinders are used for synchronous adhesive application. The first and second split cylinders are used to draw adhesive and apply it after aligning the first, second, third, and fourth blades close together in the center.

[0010] The beneficial effects of the present invention are as follows: The present invention provides a multi-cell assembly and adhesive application equipment, which is equipped with an assembly station to solve the problem of cell arrangement. At the same time, it uses an X-axis magnetic drive linear module to synchronously and batch-apply selective foam tape according to the assembly process requirements. This not only effectively avoids the problems of missed or excessive application, but also greatly improves production efficiency. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is an overall structural diagram of a preferred embodiment of a multi-cell assembly and adhesive bonding device of the present invention; Figure 2 This is a schematic diagram of the blade cylinder structure of a preferred embodiment of a multi-cell assembly and adhesive bonding device of the present invention; Figure 3 This is a structural diagram of a grouping station of a preferred embodiment of a multi-cell grouping and adhesive bonding device of the present invention; Figure 4 This is a schematic diagram of the blade cylinder structure of a preferred embodiment of a multi-cell assembly and adhesive bonding device of the present invention; Figure 5 This is a structural diagram of a spacing cylinder of a preferred embodiment of a multi-cell assembly and adhesive bonding device of the present invention; Figure 6 This is a carrier board structure diagram of a preferred embodiment of a multi-cell assembly and adhesive bonding device of the present invention; Figure 7 This is a structural diagram of a coding machine according to a preferred embodiment of a multi-cell assembly and adhesive application device of the present invention. Detailed Implementation

[0012] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0013] like Figure 1-7 As shown, embodiments of the present invention include: A multi-cell assembly and adhesive bonding device includes a machine base 1, an X-axis magnetic drive linear module 2, a vacuum suction table 3, a negative pressure suction head 4, and a retractable feeder 5. The machine base 1 is equipped with multiple X-axis magnetic drive linear modules 2, each of which is equipped with several moving sliders 6. The vacuum suction table 3 is mounted on the moving sliders 6. A gantry frame 7 is mounted directly above the X-axis magnetic drive linear modules 2. Several YZ two-axis servo linear modules 19 are mounted on the gantry frame 7. Each YZ two-axis servo linear module 19 is equipped with a set of blade cylinders 18 carrying negative pressure suction heads 4. Each set of negative pressure suction heads 4 reciprocates with the vacuum suction table 3 and the retractable feeder 5 through each YZ two-axis servo linear module 19.

[0014] The machine tool 1 is equipped with a matching station 8 along the X-axis magnetic drive linear module 2. The matching station 8 is equipped with a Y-axis slide cylinder 9, a Z-axis slide cylinder 10 is installed on the Y-axis slide cylinder 9, and a rotary cylinder 11 is horizontally installed on the Z-axis slide cylinder 10. The rotation axis of the rotary cylinder 11 is matched to the upward Y-axis. A gas distribution block 12 is installed on the rotary cylinder 11. A negative pressure suction head 4 is connected to the gas distribution block 12. The negative pressure suction head 4 has multiple vacuum suction cups embedded in it, which are connected to the gas distribution block 12. The vacuum suction cups are connected to the vacuum suction table 3. The vacuum suction cups are used to flip the upward-facing adhesive surface of the battery cell 180° downward. The vacuum suction cups are used to match multiple battery cells with the adhesive surface facing upward with at least one battery cell with the adhesive surface facing downward in a group of battery cells.

[0015] Furthermore, a Z-axis servo linear module 13 is suspended on the gantry frame 7, and an auxiliary suction head 14 is installed on the Z-axis servo linear module 13. The auxiliary suction head 14 is alternately docked with the negative pressure suction head 4 and the vacuum suction table 3, and the auxiliary suction head 14 is used to put the flipped battery cell back into the vacuum suction table 3.

[0016] Furthermore, the gantry 7 is also provided with a third Y-axis linear module 15 that spans all X-axis magnetic drive linear modules 2 at the downstream end of the X-axis magnetic drive linear module 2. The third Y-axis linear module 15 is equipped with an inkjet printer 16, which is vertically connected to each vacuum suction table 3.

[0017] Furthermore, the inkjet printer 16 is equipped with a code reader 17; the machine base 1 is equipped with a defect detection camera at the end of the X-axis magnetic drive linear module 2, and the defect detection camera is vertically facing each vacuum suction stage 3.

[0018] Furthermore, the blade cylinder 18 consists of four blade cylinders: a first blade 18a, a second blade 18b, a third blade 18c, and a fourth blade 18d. The second blade 18b and the third blade 18c are mounted side-by-side and centered on a back plate 20 via the same mounting block 19. The back plate 20 has horizontally arranged linear rails 21 on the left and right sides of the mounting block 19, and each linear rail 21 has a carrier plate 22 mounted on it. The first blade 18a and the fourth blade 18d are respectively mounted on their respective carrier plates 22 and aligned with the second blade 18b and the third blade 18c. The first blade 18a is connected to a first split cylinder 23 via a connector. The fourth blade 18d is connected to a second split cylinder 24 via a connector. The first split cylinder 23 and the second split cylinder 24 are horizontally and symmetrically arranged in opposite directions on the back plate 20. The first split cylinder 23 is used to pull apart the first blade 18a and the third blade 18c and then apply adhesive at a fixed point. The second split cylinder 24 is used to pull apart the second blade 18b and the fourth blade 18d and then apply adhesive at a fixed point. The first split cylinder 23 and the second split cylinder 24 are used to apply adhesive synchronously. The first split cylinder 23 and the second split cylinder 24 are used to align the first blade 18a, the second blade 18b, the third blade 18c, and the fourth blade 18d in a centered and close manner before absorbing and applying adhesive.

[0019] like Figure 1 , 2 As shown, seven battery cells with the adhesive side facing up are first placed onto vacuum suction table 3. The first vacuum suction table 3 reaches the location of assembly station 8, the second vacuum suction table 3 reaches the location of the third retractable feeder 5, the third vacuum suction table 3 reaches the location of the second retractable feeder 5, and the fourth vacuum suction table 3 reaches the location of the first retractable feeder 5. The three retractable feeders 5 simultaneously supply foam tape. Each YZ two-axis servo linear module 19 pulls the blade cylinder 18 to the retractable feeder 5. The negative pressure suction head 4 picks up the foam tape and goes to vacuum suction table 3 to apply the tape. At the same time, assembly station 8 flips one battery cell, thus obtaining six battery cells with the iron corner facing up and one battery cell with the adhesive side facing down. In this way, the downstream production line can assemble battery packs sequentially according to this assembly method.

[0020] like Figure 3 As shown, the Y-axis slide cylinder and Z-axis slide cylinder 10 load the negative pressure suction head 4 directly above the vacuum suction stage 3, then pick up the battery cell. The rotary cylinder 11 then flips the battery cell over. After the battery cell is transferred to the auxiliary suction head 14, the negative pressure suction head 4 leaves the vacuum suction stage 3 and resets. The auxiliary suction head 14 then puts the flipped battery cell back onto the vacuum suction stage. Depending on the process requirements, the batching station 8 can quantitatively flip the battery cells to obtain batches flipped according to a specified combination method.

[0021] like Figure 4 As shown, the feeder material consists of tightly arranged foam adhesive sheets, which need to be picked up in batches by the blade cylinder 18 in a tightly arranged manner.

[0022] like Figure 5 As shown, after obtaining the foam tape, to further address the issue of efficient tape application, a first spacing cylinder 23 and a second spacing cylinder 24 are used to adjust the position of the blade cylinder 18. To maximize operating efficiency, the first blade 18a and the third blade 18c are spaced and pressed synchronously to achieve high-speed tape application. This shortens the blade cylinder transfer time and increases the cycle time.

[0023] like Figure 6 As shown, a vacuum suction stage 3 simultaneously adsorbs two battery cells. The first split cylinder 23 and the second split cylinder 24 are switched in position by traction carrier plate 22. Due to the extremely short length, the adhesive application speed is extremely fast.

[0024] like Figure 7 As shown, after the synchronous adhesive application and flipping assembly actions, the assembled battery cells need to be traced by an inkjet printer, verified by a code reader 17, and finally verified by a defect detection camera to check the adhesive application location or whether adhesive has been applied.

[0025] In summary, this invention provides a multi-cell assembly and adhesive application equipment, equipped with an assembly station to solve the cell arrangement problem. At the same time, it utilizes an X-axis magnetic drive linear module to synchronously and batch-apply selective foam tape according to the assembly process requirements, which not only effectively avoids the problems of missed or excessive application, but also greatly improves production efficiency.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A multi-cell assembly and adhesive bonding device, characterized in that, The system includes a machine base, an X-axis magnetic drive linear module, a vacuum suction table, a negative pressure suction head, and a retractable feeder. The machine base is equipped with multiple X-axis magnetic drive linear modules, each with several moving sliders. A vacuum suction table is mounted on each moving slider. A gantry frame is mounted directly above the X-axis magnetic drive linear modules, and several YZ two-axis servo linear modules are mounted on the gantry frame. Each YZ two-axis servo linear module is equipped with a set of blade cylinders carrying negative pressure suction heads. Each set of negative pressure suction heads reciprocates with the vacuum suction table and the retractable feeder through each YZ two-axis servo linear module.

2. The multi-cell assembly and adhesive bonding equipment according to claim 1, characterized in that, The machine tool also has a matching station along the X-axis magnetic drive linear module. The matching station is equipped with a Y-axis slide cylinder, a Z-axis slide cylinder is mounted on the Y-axis slide cylinder, and a rotary cylinder is horizontally mounted on the Z-axis slide cylinder. The rotation axis of the rotary cylinder is matched to the upward Y-axis. An air distribution block is mounted on the rotary cylinder, and a negative pressure suction head is connected to the air distribution block. The negative pressure suction head has multiple vacuum suction cups embedded in it, which are connected to the air distribution block. The vacuum suction cups are connected to the vacuum suction table. The vacuum suction cups are used to flip the adhesive-coated surface of the battery cell 180° downwards. The vacuum suction cups are used to match multiple battery cells with the adhesive-coated surface upwards with at least one battery cell with the adhesive-coated surface downwards in a group of battery cells.

3. The multi-cell assembly and adhesive bonding equipment according to claim 2, characterized in that, A Z-axis servo linear module is suspended on the gantry frame. An auxiliary suction head is installed on the Z-axis servo linear module. The auxiliary suction head alternately docks with the negative pressure suction head and the vacuum suction stage. The auxiliary suction head is used to put the flipped battery cell back into the vacuum suction stage.

4. The multi-cell assembly and adhesive bonding equipment according to claim 1, characterized in that, The gantry frame is also equipped with a third Y-axis linear module that spans all X-axis magnetic drive linear modules at the downstream end of the X-axis linear drive module. The third Y-axis linear module is equipped with an inkjet printer, which is vertically connected to each vacuum suction platform.

5. The multi-cell assembly and adhesive bonding equipment according to claim 4, characterized in that, The inkjet printer is equipped with a code reader; the machine base is equipped with a defect detection camera at the end of the X-axis magnetic drive linear module, and the defect detection camera is vertically facing each vacuum suction stage.

6. The multi-cell assembly and adhesive bonding equipment according to claim 1, characterized in that, The blade cylinder consists of four units: a first blade, a second blade, a third blade, and a fourth blade. The second and third blades are mounted side-by-side and centered on a back plate via a mounting block. The back plate has horizontal rails on both sides of the mounting block, and each rail has a carrier plate mounted on it. The first and fourth blades are mounted on their respective carrier plates and aligned with the second and third blades. The first blade is connected to a first split cylinder via a connector, and the fourth blade is connected to a second split cylinder via a connector. The first and second split cylinders are horizontally and symmetrically arranged in opposite directions on the back plate. The first split cylinder is used to pull the first and third blades apart and apply adhesive at a fixed point. The second split cylinder is used to pull the second and fourth blades apart and apply adhesive at a fixed point. The first and second split cylinders are used for synchronous adhesive application. The first and second split cylinders are used to align the first, second, third, and fourth blades close together and then pick up adhesive for application.

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