Battery cell stacking device

Abstract

The present invention relates to a battery cell stacking device, which belongs to the field of lithium battery module production. The battery cell stacking device includes a loading and transporting part, a rotating working part, a battery cell detection part, a stacking part and a unloading and transporting part; at least one bearing platform is arranged on the rotating working part, and the battery cell detection part and the stacking part are located on the rotating path of the bearing platform; the loading and transporting part is used to transport the battery cell to the rotating working part; the bearing platform drives the carried battery cell to rotate to the position of the battery cell detection part, and then rotates to the position of the stacking part, the battery cell detection part detects the battery cell, and the stacking part stacks a plurality of battery cells into a battery cell group; the unloading and transporting part transports the stacked battery cell group to the next workstation. The present invention has a detection function while stacking through the cooperation of the loading and transporting part, the rotating working part, the battery cell detection part, the stacking part and the unloading and transporting part, which greatly improves the production efficiency of the device.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery module production, in particular to a battery unit stacking device. Background Art

[0002] In the field of lithium battery module production, the battery cells need to be stacked in advance, and then information entry and voltage resistivity testing are carried out. Traditional battery cell stacking equipment only uses cylinders to regularize the battery cells and stack them up. It has a single function, and other processes such as information entry and voltage resistivity testing require other equipment or manual work, which not only increases the equipment's floor space, but also reduces production efficiency. Summary of the invention

[0003] The present invention aims to solve the problem that the existing battery unit stacking equipment has a single function and provides a battery unit stacking device which has the stacking function as well as the detection function.

[0004] The technical solution of the present invention is as follows:

[0005] A battery cell stacking device, the battery cell stacking device comprises a loading and transporting part, a rotating working part, a battery cell detection part, a stacking part and a unloading and transporting part; wherein: at least one carrying platform is arranged on the rotating working part, and the battery cell detection part and the stacking part are located on the rotating path of the carrying platform; the loading and transporting part moves between the battery cell storage area and the rotating working part, and is used to transport the battery cells in the battery cell storage area to the carrying platform of the rotating working part; after the carrying platform drives the carried battery cells to rotate to the position of the battery cell detection part, it is rotated to the position of the stacking part, and the battery cell detection part detects the battery cells rotated to the position of the battery cell detection part, and the stacking part is configured to stack multiple battery cells into a battery cell group; the unloading and transporting part is located at the back-end station of the stacking part, moves between the stacking part and the next station, and is configured to transport the battery cell group stacked by the stacking part to the next station.

[0006] Through the coordination of the loading and transporting part, the rotating working part, the battery unit detection part, the stacking part and the unloading and transporting part, the device has the detection function while stacking, which greatly improves the production efficiency of the device.

[0007] Furthermore, the stacking part includes a tidying part and a lifting mechanism, the lifting mechanism is located below the tidying part, the rotating table carrier platform rotates to between the tidying part and the lifting mechanism, the lifting mechanism moves upward to lift the battery cells on the rotating table carrier platform to the position of the tidying part, and the tidying part is used to arrange the battery cells lifted by the lifting mechanism into a predetermined form.

[0008] By providing the stacking portion, the battery cells can be stacked at the stacking position.

[0009] Furthermore, the regularization part includes a first regularization mechanism and a second regularization mechanism, and the first regularization mechanism and the second regularization mechanism regularize the battery cells from two directions respectively.

[0010] By providing two aligning mechanisms, the battery cells can be aligned from two directions at the same time, thereby improving the aligning efficiency.

[0011] Furthermore, the battery cell detection unit includes a probe and a detector, and the probe connects the battery cell and the detector to form a detection loop.

[0012] By providing a battery cell inspection unit, the battery cells before stacking can be screened to eliminate defective products.

[0013] Furthermore, the rotating working part also includes a loading station, which is used to receive the battery cells transported by the loading and transporting part.

[0014] By setting a loading station on the rotating working part, the battery cells to be tested can be temporarily stored, which can further improve the production efficiency.

[0015] Furthermore, the battery cell stacking device also includes an NG unloading section, which is arranged on the rotation path of the rotating working section and is located at the rear workstation of the battery cell inspection section. The NG unloading section moves the battery cells that are unqualified by the battery cell inspection section out of the rotating working section.

[0016] By setting up the NG unloading section, unqualified battery cells after inspection can be temporarily stored for subsequent processing.

[0017] Furthermore, the battery cell stacking device also includes a loading conveyor line located at a front station of the loading and transporting part, and the loading conveyor line is used to transport and buffer the battery cells.

[0018] By setting up a loading conveyor line, the battery cells to be stacked can be buffered and the loading speed can be increased.

[0019] Furthermore, the battery cell stacking device also includes a code scanning device, which is located between the loading and transporting part and the rotating working part, and is used to scan the QR code or bar code information of the battery cells to be stacked.

[0020] By arranging a code scanning device to scan the information of the battery cells to be stacked, the battery cell stacking device is provided with another function, thereby further improving the production efficiency.

[0021] Furthermore, the battery cell stacking device also includes a repair loading section, which is used to reload the unqualified battery cells after repair.

[0022] By setting up a rework loading section, unqualified battery cells can be processed nearby, and the loading of reworked and qualified battery cells can be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure from another viewing angle of the present invention.

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating working part in the present invention.

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the rotating working part in the present invention from another perspective.

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating mechanism in the present invention.

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the battery cell detection unit in the present invention.

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the stacking part in the present invention.

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the regular part in the present invention.

[0031] Fig. 9 It is a bottom view of the regular part in the present invention.

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the material unloading and conveying part in the present invention.

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the battery unit in the present invention.

[0034] Figures 1 to 11 It includes a loading conveyor line 10, a loading and transporting part 20, a code scanning device 30, a rework loading part 40, a rotating working part 50, a supporting platform 51, a rotating mechanism 52, a sensor 53, a loading station 54, a detection station 55, a stacking station 56, an NG unloading station 57, a battery cell detection part 60, a probe 61, an insulating block 62, a stacking part 70, a regularizing part 71, a first regularizing mechanism 711, a second regularizing mechanism 712, an airbag assembly 73, a pallet 713, a pallet cylinder 714, a lifting mechanism 72, an unloading and transporting part 80, a pressing plate 81, a clamp 82, a lifting mechanism 83, a translation mechanism 84, an NG unloading part 90, an NG material rack 91, an NG transporting mechanism 92, a battery cell 100, and a pole ear 101. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1 , Figure 2 As shown, the present invention is a battery cell stacking device for stacking battery cells 100 .

[0037] The battery cell stacking device at least includes a loading and transporting part 20, a rotating working part 50, a battery cell detection part 60, a stacking part 70 and a unloading and transporting part 80. Optionally, the battery cell stacking device may also include a loading and conveying line 10, a code scanning device 30, a rework loading part 40 and an NG unloading part 90.

[0038] At least one carrying platform 51 is arranged on the rotating working part 50, and the battery cell detection part 60 and the stacking part 70 are located on the rotating path of the carrying platform 51; the loading and transporting part 20 moves between the battery cell storage area and the rotating working part 50, and is used to transport the battery cells 100 in the battery cell storage area to the carrying platform 51 of the rotating working part 50; the carrying platform 51 drives the carried battery cells 100 to rotate to the position of the battery cell detection part 60, and then rotates to the position of the stacking part 70, and the battery cell detection part 60 detects the battery cells 100 rotated to the position of the battery cell detection part 60, and the stacking part 70 is configured to stack multiple battery cells 100 into a battery cell group; the unloading and transporting part 80 is located at the back station of the stacking part 70, moves between the stacking part 70 and the next station, and is configured to transport the battery cell group stacked by the stacking part 70 to the next station.

[0039] The present invention has a detection function while stacking through the cooperation of the loading and conveying part 20, the rotating working part 50, the battery unit detection part 60, the stacking part 70 and the unloading and conveying part 80, which greatly improves the production efficiency of the device.

[0040] The loading and transporting part 20 can be in any known form, and is generally a robot. The robot is provided with a clamping claw, which clamps the battery cell 100 as a raw material and transports the battery cell 100 from the battery cell storage area to the rotating working part 50.

[0041] The action flow of the loading and transporting part 20 is to transport the battery cell 100 from the battery cell storage area, such as the loading conveyor line 10 or the rework loading part 40, to the front of the code scanning device 30. After the code scanning is completed, the battery cell 100 is placed in the loading position of the rotating working part 50.

[0042] like Figure 3 , Figure 4 and Figure 5 As shown, the function of the rotating working part 50 is to drive the battery unit 100 to change the working position. The rotating working part 50 is provided with at least one carrying platform 51 and two stations, the inspection station 55 and the stacking station 56. The battery unit 100 carried on the carrying platform 51 of the rotating working part 50 must at least move to the inspection station 55 and the stacking station 56 in sequence.

[0043] Optionally, the rotating working part 50 further includes a loading station 54, which is used to receive the battery cells 100 transported by the loading and transporting part 20. By providing the loading station 54 in the rotating working part 50, the battery cells 100 to be tested can be temporarily stored, which can further improve production efficiency.

[0044] The rotating working part 50 includes a carrier 51 and a rotating mechanism 52. The rotating working part 50 is generally provided with four carriers 51 and four workstations, and the four carriers 51 correspond to the positions of the four workstations when stationary. The four workstations are a loading station 54, a testing station 55, a stacking station 56, and an NG unloading station 57. The rotating mechanism 52 adopts any existing structure, and a gear transmission mechanism is often adopted. The rotating mechanism 52 drives the carrier 51 to rotate horizontally, and the carrier 51 passes through each workstation in turn.

[0045] The rotating working part 50 is also provided with a sensor 53. Generally, two sensors 53 are provided, corresponding to the loading station 54 and the NG unloading station 57. The sensors 53 are used to detect whether there are battery cells on the two stations.

[0046] like Figure 6 As shown, the battery cell detection unit 60 includes a probe 61, an insulating block 62 and a detector. The probe 61 is connected to an external detector, connecting the battery cell 100 and the detector to form a detection loop; the insulating block 62 lifts the tab 101 of the battery cell 100. After the two probes 61 touch the tab 101 of the battery cell 100, the positive and negative poles, voltage, resistivity and other parameters of the battery cell 100 are measured.

[0047] By providing the battery cell inspection unit 60 , the battery cells 100 before stacking can be screened, thereby eliminating defective products.

[0048] like Figure 7 , Figure 8 and Fig. 9As shown, the stacking part 70 includes a regularizing part 71 and a lifting mechanism 72, and the lifting mechanism 72 is located below the regularizing part 71. When the carrier 51 rotates to between the regularizing part 71 and the lifting mechanism 72, the lifting mechanism 72 moves upward to lift the battery unit 100 on the carrier 51 to the position of the regularizing part 71. The regularizing part 71 is used to regularize the battery unit 100 lifted by the lifting mechanism 72 in a predetermined form. By setting the stacking part 70, the battery units 100 can be stacked at the stacking position.

[0049] The aligning part 71 includes a first aligning mechanism 711 and a second aligning mechanism 712. The first aligning mechanism 711 and the second aligning mechanism 712 align the battery cell 100 from two directions respectively. By providing two aligning mechanisms, the battery cell 100 can be aligned from two directions at the same time, thereby improving the aligning efficiency.

[0050] Optionally, the regulating part 71 further includes an airbag assembly 73 and a support plate 713, wherein the airbag assembly 73 is located above the regulating part 71, and the support plate 713 is located below the regulating part 71, and the support plate 713 is mounted on a support plate cylinder 714. The support plate 713 only plays a protective role. When the airbag assembly 73 expands, the support plate 713 extends and moves to the bottom of the battery cell 100 to prevent the battery cell 100 from falling due to not being pressed firmly. Under normal circumstances, the support plate 713 does not contact the battery cell 100.

[0051] The working process of the aligning section 71 is as follows: the support plate 713 retracts; the lifting mechanism 72 drives the battery cells 100 to be stacked to rise to the aligning position, the first aligning mechanism 711 and the second aligning mechanism 712 align the battery cells 100, and continue to rise after the aligning is completed. After rising to contact with the last battery cell 100 that has been stacked above, the airbag assembly 73 deflates to loosen the stacked battery cells 100; the lifting mechanism 72 continues to lift, and after lifting the battery cell 100 to a predetermined height, the airbag assembly 73 inflates and expands to press the battery cell 100; after pressing, the lifting mechanism 72 descends to its original position and the support plate 713 extends.

[0052] like Fig.10 As shown, the material unloading and handling part 80 includes a clamp 82, a lifting mechanism 83 and a translation mechanism 84. The clamp 82 is installed on the lifting mechanism 83, and the lifting mechanism 83 is installed on the translation mechanism 84. The translation mechanism 84 drives the lifting mechanism 83 to move horizontally, and the lifting mechanism 83 drives the clamp 82 to move up and down. The clamp 82 opens and closes under the drive of the clamp driving mechanism. A pressing plate 81 is also installed on the clamp 82, and the pressing plate 81 is used to press the battery unit 100 to prevent it from moving during the handling process. The clamp 82, the lifting mechanism 83 and the translation mechanism 84 all adopt known structures.

[0053] like Figure 1 , Figure 3 As shown, the battery cell stacking device may further include an NG unloading section 90, which is disposed on the rotation path of the rotating working section 50 and is located at the rear station of the battery cell inspection section 60. The NG unloading section 90 removes the unqualified battery cells 100 detected by the battery cell inspection section 60 from the rotating working section 50. By providing the NG unloading section 90, unqualified battery cells after detection can be temporarily stored for subsequent processing.

[0054] The NG unloading section 90 is installed beside the NG unloading station 57 of the rotating working section 50, and includes an NG material rack 91 and an NG conveying mechanism 92. The NG conveying mechanism 92 conveys the unqualified battery cells 100 to the NG material rack 91. The unqualified battery cells 100 after inspection are transported away by the NG unloading section 90, which can improve production efficiency.

[0055] like Figure 1 As shown, optionally, the battery cell stacking device further includes a loading conveyor line 10 located at the front station of the loading and transporting part 20, and the loading conveyor line 10 is used to transport and cache the battery cells 100. By setting the loading conveyor line 10, the battery cells 100 to be stacked can be cached to increase the loading speed.

[0056] Optionally, the battery cell stacking device further includes a code scanning device 30, which is located between the loading and transporting portion 20 and the rotating working portion 50 and is used to scan the QR code or barcode information of the battery cell 100 to be stacked. By arranging the code scanning device 30 to scan the information of the battery cell 100 to be stacked, the battery cell stacking device has an additional function, further improving the production efficiency.

[0057] Optionally, the battery cell stacking device further includes a rework loading section 40, which is used to rework unqualified battery cells 100 after inspection and reload them. By providing the rework loading section 40, unqualified battery cells 100 can be processed nearby, and reworked qualified battery cells 100 can be loaded conveniently.

[0058] The clamping jaws of the loading and transporting part 20 and the NG unloading part 90 are also provided with a pressing plate like the clamping jaws of the unloading and transporting part 80, which is used to press the battery unit 100 to prevent it from moving during the transport process.

[0059] The present invention has been described in sufficient detail with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present invention should fall within the scope of protection of the present invention. The scope of protection claimed by the present invention is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A battery cell stacking device, characterized in that: The battery cell stacking device comprises a loading and transporting part, a rotating working part, a battery cell detection part, a stacking part, a unloading and transporting part and an NG unloading part; wherein: The rotating working part includes four bearing platforms, a rotating mechanism, a loading station, a detection station, a stacking station and an NG unloading station. The four bearing platforms correspond to the positions of the four stations when stationary, and the rotating mechanism drives the four bearing platforms to rotate horizontally and pass through each station in turn; the loading station is used to receive the battery cells transported by the loading and transporting part; the battery cell detection part and the stacking part are located on the rotation path of the bearing platform; The loading and transporting part moves between the battery cell storage area and the rotating working part, and is used to transport the battery cells in the battery cell storage area to the carrying platform of the rotating working part; The carrying platform drives the carried battery cell to rotate to the position of the battery cell detection part, and then rotates to the position of the stacking part, the battery cell detection part detects the battery cell rotated to the position of the battery cell detection part, and the stacking part is configured to stack a plurality of the battery cells into a battery cell group; The unloading and transporting section is located at the rear station of the stacking section, moves between the stacking section and the next station, and is configured to transport the battery cell group stacked by the stacking section to the next station; The stacking part includes a tidying part and a lifting mechanism, the lifting mechanism is located below the tidying part, the carrying platform rotates to between the tidying part and the lifting mechanism, the lifting mechanism moves upward to lift the battery unit on the carrying platform to the position of the tidying part, and the tidying part is used to arrange the battery unit lifted by the lifting mechanism in a predetermined form; The stacking part further comprises an airbag assembly and a support plate, wherein the airbag assembly is located above the regularization part, the support plate is located below the regularization part, and the support plate is mounted on a support plate cylinder; The NG unloading section is arranged on the rotating path of the rotating working section and is located at the post-process station of the battery cell detection section. The NG unloading section moves the battery cells detected as unqualified by the battery cell detection section out of the rotating working section.

2. The battery unit stacking device according to claim 1, characterized in that: The aligning part includes a first aligning mechanism and a second aligning mechanism, and the first aligning mechanism and the second aligning mechanism align the battery cells from two directions respectively.

3. The battery unit stacking device according to claim 1, characterized in that: The battery cell detection unit includes a probe and a detector, and the probe connects the battery cell and the detector to form a detection loop.

4. The battery unit stacking device according to claim 1, characterized in that: The battery unit stacking device further comprises a loading conveyor line located at a front station of the loading and transporting portion, and the loading conveyor line is used to transport and buffer the battery units.

5. The battery unit stacking device according to claim 1, characterized in that: The battery unit stacking device further comprises a code scanning device, which is located between the loading and transporting part and the rotating working part and is used for scanning the QR code or bar code information of the battery unit to be stacked.

6. The battery unit stacking device according to claim 1, characterized in that: The battery unit stacking device further comprises a rework loading section, which is used to reload the unqualified battery units after rework and refill them.

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