Alignment tool for preparing high-alignment-degree battery pack and manufacturing process of high-alignment-degree battery pack

Abstract

The invention discloses an alignment tool for preparing a high-alignment battery pack and a manufacturing process of the high-alignment battery pack, and belongs to the technical field of batteries. According to the invention, the single batteries are stacked in the winding frame, and are aligned through the battery sealing edges and the tabs. And the alignment of the tabs is realized by virtue of an alignment tool. The alignment tool comprises an alignment module and a suction cup module. The alignment module comprises an alignment column, and a transverse insertion hole is formed in the alignment column. And the insulating lever screwed into the transverse jack laterally extends out and is in contact with the battery. When the single batteries are sucked, the side edges of the tabs abut against the alignment column insulating rods, and the batteries are aligned by adjusting the positions of the suction cups. And after the batteries are aligned, pressing the batteries, welding the tabs and bonding the spacing layers. And repeating the steps in sequence to complete battery grouping. The method has the beneficial effects that by improving the alignment degree of the grouped batteries, battery damage such as battery deformation and liquid leakage caused by expansion is reduced, and the service life of the battery pack is prolonged.

Description

Technical Field

[0001] This invention belongs to the field of battery technology, specifically relating to an alignment tooling for preparing high-alignment battery packs and a manufacturing process for high-alignment battery packs. Background Technology

[0002] Battery pack assembly has a significant impact on the performance and stability of the battery pack. During battery charging, individual cells expand. Poor alignment of individual cells can cause the edges of some cells to press against the surfaces of adjacent cells, leading to surface cracking, battery deformation, and leakage. Existing battery assembly methods cannot simultaneously handle the series of operations including cell alignment, welding, and module insertion into the winding frame, resulting in low production efficiency and difficulty in achieving product quality standards.

[0003] CN118790756A describes a battery alignment method, alignment device, electronic equipment, and storage medium. The method involves controlling a transport tool to move a battery to a target placement position corresponding to the battery; then fixing the battery's attitude at the target placement position; and finally controlling an electric alignment module and a pneumatic alignment module to align the battery at the target placement position. The shortcomings of this application are: it involves numerous modules, has a complex structure, and low versatility; it cannot meet the alignment requirements of battery assembly within a winding frame. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing battery pack assembly methods described in the background art cannot simultaneously handle a series of operations such as battery alignment, welding, and module loading into the winding frame, and to provide an alignment fixture and manufacturing process for preparing high-alignment battery packs.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an alignment tooling for preparing high-alignment battery packs, comprising an alignment column module, a suction cup module, and a motion mechanism. The alignment module includes an alignment column and an insulating rod. The alignment column has a transverse threaded hole, and the insulating rod, which is screwed into the transverse threaded hole, extends laterally and contacts the battery seal edge or battery tab. When picking up a single battery, it abuts against the insulating rod with the side of the battery seal edge or tab. By adjusting the position of the suction cup, battery alignment is achieved. The suction cup module includes a vacuum suction cup whose length and width sides of the contact surface with the battery are larger than the length and width sides of the single battery, used to move the single battery into the battery module winding frame. The motion mechanism simultaneously drives the alignment module and the suction cup module to move.

[0006] Furthermore, the suction cup can move up and down under the drive of the suction cup support arm. When it moves downward, the resistance generated by the spring compression produces a slowly changing pressure, which alleviates the damage to the individual battery cells caused by excessive force.

[0007] Next, use the insulating rod on the alignment fixture to contact the battery seal and battery tabs, and use a vacuum suction cup to pick up the individual cells that need to be aligned. If the battery position does not meet the alignment requirements, stop vacuum suction, adjust the position of the alignment fixture, and use the insulating rod on the alignment fixture to contact the battery seal and battery tabs again to start vacuum suction.

[0008] Furthermore, the alignment post includes an alignment post support back plate, a first alignment post with a threaded hole, a second alignment post with a threaded hole, an alignment post support crossbar, a first insulating rod, and a second insulating rod. The alignment post support crossbar is horizontally fixed to one side of the upper part of the alignment post support back plate. The alignment post support crossbar has multiple threaded holes. The first alignment post and the second alignment post are vertically screwed downwards onto the alignment post support crossbar at a certain distance. The first insulating rod is screwed into the threaded hole of the first alignment post, and the second insulating rod is screwed into the threaded hole of the second alignment post. The first insulating rod is perpendicular to the alignment post support crossbar, and the second insulating rod is parallel to the alignment post support crossbar. The suction cup module includes a suction cup, a suction cup support back plate, and a suction cup support arm. Both the suction cup support back plate and the alignment column support back plate have multiple connecting rod through holes on their sides. Through-link connecting rods passing through the connecting rod through holes connect the suction cup support back plate and the alignment column support back plate. The suction cup support arm is integrally formed with the suction cup and is connected to the suction cup support back plate through a sliding groove. The suction cup support arm can move in the up and down direction. The motion mechanism is fixed to the alignment column support back plate by screws, and at the same time drives the alignment module and suction cup module to move in three directions: front-back, up-down, and left-right.

[0009] A manufacturing process for a high-alignment battery pack includes: placing, pasting, and welding individual battery cells in a winding frame. The alignment process of the individual battery cells is assisted by the aforementioned alignment fixture and includes the following steps: First, adjust the position of the alignment fixture so that the vacuum suction cup is directly above the individual battery. Start the vacuum device to move the individual battery into the winding frame. Adjust the position of the alignment fixture so that the lower surface of the battery contacts the bottom surface of the winding frame. Adjust the position of the insulating rod in the alignment column so that the insulating rod contacts the edge of the tab side of the individual battery. Stop the vacuum device, the vacuum suction cup loses its suction force, and the individual battery is placed in the winding frame. The motion mechanism drives the alignment module, and the alignment module drives the suction cup module to make the alignment fixture completely leave the winding frame. The second step is to place and attach the inter-battery filler as a separator on the surface of the first battery facing upwards. The third step is to place and attach the next individual battery: Adjust the positions of the suction cup support backplate and the alignment post support backplate so that the suction cup is directly above the individual battery, and the first insulating rod is in contact with the bottom sealing edge of the battery, and the second insulating rod is in contact with the battery tab, thus completing the alignment of the individual battery; adjust the position of the alignment fixture downwards so that the suction cup and the individual battery make contact and exert pressure, and start the vacuum device so that the suction cup has suction force below; adjust the position of the alignment fixture so that the lower surface of the battery contacts the bottom surface of the winding frame; stop the vacuum device, the suction cup loses suction force, and the individual battery is placed in the winding frame; adjust the position of the alignment fixture backplate so that the alignment fixture is completely removed from the winding frame; Step 4, welding of individual battery tabs: By moving the support winding frame and alignment fixture, the aligned tabs are positioned below the welding head. The welding equipment is then started to complete the welding. After welding, the tabs are insulated. Fifth, repeat steps two through four until all the required number of individual cells have been placed, glued, and soldered.

[0010] Compared with existing technologies, the advantages and positive effects of this invention are as follows: The high-alignment battery pack manufacturing method of this invention ensures full alignment of individual cells, avoiding surface cracking and deformation caused by the edges of some individual cells pressing against the surfaces of adjacent cells. In the manufacturing method of this invention, the tab welding process can be performed immediately after the alignment of individual cells, with unobstructed tabs, facilitating compatibility with laser welding technology. The alignment fixture included in this invention can penetrate deep into the winding frame, highly integrated with the battery module assembly process, resulting in a simple, efficient, and reliable structure. Attached Figure Description

[0011] Figure 1 It is an isometric view showing the coordinated operation of battery modules and alignment fixtures during the battery pack assembly process.

[0012] Figure 2 This is the overall structural diagram of the alignment tooling.

[0013] Figure 3 These are isometric views of the suction cup module and alignment module of the alignment fixture.

[0014] Figure 4 It is an isometric view showing the connection between the motion mechanism and the alignment module in the alignment fixture.

[0015] In the diagram, 10-alignment fixture; 20-winding frame; 30-single cell; 40-cell spacer; 110-spring column; 111-through connecting rod; 112-top edge of suction cup support backplate; 113-suction cup; 114-spring; 115-suction cup support arm; 116-suction cup support backplate; 117-spring column baffle; 118-connecting rod through hole; 119-vacuum pump air hole; 120-top edge of alignment column support arm; 1211-alignment column crossbar base; 1212-alignment column support crossbar positioning hole; 1213-alignment column support crossbar; 1214-alignment column crossbar base fixing screw; 122-alignment column support backplate; 1231-first alignment column Small beam; 1232-First alignment post fixing screw; 1233-First alignment post positioning pin; 1234-First alignment post; 1235-First insulating rod; 1241-Second alignment post small beam; 1242-Second alignment post fixing screw; 1243-Second alignment post positioning pin; 1244-Second alignment post; 1245-Second insulating rod; 1311-Motion mechanism and alignment module fixing screw; 132-Motion mechanism fixing plate; 133-Up and down axial motor; 134-Up and down guide rail; 135-Left and right axial motor; 136-Left and right guide rail; 137-Front and rear axial motor; 138-Front and rear guide rail. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the present invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0017] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description. They are all relative positions and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0018] like Figure 1-4The alignment fixture for preparing high-alignment battery packs of the present invention includes an alignment column module, a suction cup module, and a motion mechanism. The alignment module includes an alignment column and an insulating rod. The alignment column has a transverse threaded hole, and the insulating rod, which is screwed into the transverse threaded hole, extends laterally and contacts the battery seal edge or battery tab. When picking up a single battery cell, it abuts against the insulating rod with the side of the battery seal edge or tab. By adjusting the position of the suction cup, battery alignment is achieved. The suction cup module includes a vacuum suction cup whose length and width sides of the contact surface with the battery are larger than the length and width sides of the single battery cell, used to move the single battery cell into the battery module winding frame. The motion mechanism simultaneously drives the alignment module and the suction cup module to move.

[0019] The suction cup can move up and down under the drive of the suction cup support arm. When it moves downward, it encounters resistance and generates slowly changing pressure through spring compression, which alleviates damage to the individual battery cells caused by excessive force.

[0020] Use the insulating rod on the alignment fixture to contact the battery seal and battery tabs. Use a vacuum suction cup to pick up the individual battery cells that need to be aligned. If the battery position does not meet the alignment requirements, stop vacuum suction, adjust the position of the alignment fixture, and use the insulating rod on the alignment fixture to contact the battery seal and battery tabs again to start vacuum suction.

[0021] The alignment post includes an alignment post support back plate 122, a first alignment post 1234 with threaded holes, a second alignment post 1244 with threaded holes, an alignment post support crossbar 1213, a first insulating rod 1235, and a second insulating rod 1234. The alignment post support crossbar 1213 is horizontally fixed to one side of the upper part of the alignment post support back plate 122. The alignment post support crossbar 1213 has multiple threaded holes. The first alignment post 1234 and the second alignment post 1244 are vertically screwed downwards onto the alignment post support crossbar 1213 at a certain distance. The first insulating rod 1235 is screwed into the threaded hole of the first alignment post 1234, and the second insulating rod 1245 is screwed into the threaded hole of the second alignment post 1244. The first insulating rod 1235 is perpendicular to the alignment post support crossbar 1213, and the second insulating rod 1234 is parallel to the alignment post support crossbar 1213. The suction cup module includes a suction cup 113, a suction cup support back plate 116, and a suction cup support arm 115. The suction cup support back plate 116 and the alignment column support back plate 122 both have multiple connecting rod through holes 118 on their sides. Through connecting rods 111 passing through the connecting rod through holes 118 connect the suction cup support back plate 116 and the alignment column support back plate 122. The suction cup support arm 115 is integrally formed with the suction cup 113. The suction cup support arm 115 is connected to the suction cup support back plate 116 through a sliding groove. The suction cup support arm 115 can move in the up and down direction. The motion mechanism is fixed to the alignment column support back plate 122 by screws, and at the same time drives the alignment module and suction cup module to move in three directions: front-back, up-down, and left-right.

[0022] A manufacturing process for a high-alignment battery pack includes: placing, pasting, and welding individual battery cells in a winding frame. The alignment process of the individual battery cells is assisted by the aforementioned alignment fixture and includes the following steps: First, adjust the position of the alignment fixture so that the vacuum suction cup is directly above the individual battery. Start the vacuum device to move the individual battery into the winding frame. Adjust the position of the alignment fixture so that the lower surface of the battery contacts the bottom surface of the winding frame. Adjust the position of the insulating rod in the alignment column so that the insulating rod contacts the edge of the tab side of the individual battery. Stop the vacuum device, the vacuum suction cup loses its suction force, and the individual battery is placed in the winding frame. The motion mechanism drives the alignment module, and the alignment module drives the suction cup module to make the alignment fixture completely leave the winding frame. The second step is to place and attach the inter-battery filler as a separator on the surface of the first battery facing upwards. The third step is to place and attach the next individual battery: Adjust the positions of the suction cup support backplate and the alignment post support backplate so that the suction cup is directly above the individual battery, and the first insulating rod is in contact with the bottom sealing edge of the battery, and the second insulating rod is in contact with the battery tab, thus completing the alignment of the individual battery; adjust the position of the alignment fixture downwards so that the suction cup and the individual battery make contact and exert pressure, and start the vacuum device so that the suction cup has suction force below; adjust the position of the alignment fixture so that the lower surface of the battery contacts the bottom surface of the winding frame; stop the vacuum device, the suction cup loses suction force, and the individual battery is placed in the winding frame; adjust the position of the alignment fixture backplate so that the alignment fixture is completely removed from the winding frame; Step 4, welding of individual battery tabs: By moving the support winding frame and alignment fixture, the aligned tabs are positioned below the welding head. The welding equipment is then started to complete the welding. After welding, the tabs are insulated. Fifth, repeat steps two through four until all the required number of individual cells have been placed, glued, and soldered.

[0023] The following is a description with reference to specific embodiments: One assembly method for aligning tooling is as follows: According to Figures 1-4As shown, the first insulating rod 1235 is screwed into the threaded hole of the first alignment post 1234. The first alignment post 1234 and the first alignment post beam 1231 are fixed by the first alignment post fixing screw 1232. The generatrix of the first insulating rod is perpendicular to the long side of the first alignment post beam 1231. The first alignment post positioning pin 1233 is inserted into the positioning hole 1212 of the first alignment post beam 1231 and a certain alignment post support crossbar. The second insulating rod 1245 is screwed into the threaded hole of the second alignment post 1244. The second alignment post 1244 and the second alignment post beam 1241 are fixed by the second alignment post fixing screw 1242. The generatrix of the second insulating rod is parallel to the long side of the second alignment post beam 1241. The second alignment post positioning pin 1243 is inserted into the positioning hole 1212 of the second alignment post beam 1241 and a certain alignment post support crossbar. The alignment post support crossbar 1213 and the alignment post crossbar base 1211 are fixedly connected and do not require assembly. Secure the alignment column base 1211 to the alignment column support backplate 122 using the alignment column base fixing screws 1214. Both the suction cup support backplate 116 and the alignment column support backplate 122 have multiple connecting rod through holes 118 on their sides. Select the connecting rod through holes 118 such that the top edge 112 of the suction cup support backplate is above the suction cup support backplate 116, the top edge 120 of the alignment column support arm is above the alignment column support backplate 122, and the suction cup support backplate 116 and the alignment column support backplate 122 have a suitable relative position in the vertical direction. Connect the suction cup support backplate 116 and the alignment column support backplate 122 using the through connecting rod 111, eliminating any gaps between them. Connect the vacuum pump interface to the vacuum pump port 119 on the back of the suction cup support backplate 116. The motion mechanism fixing plate 132 is fixed to the alignment column support back plate 122 using the motion mechanism and alignment module fixing screws 1311. The motion mechanism can be driven by the up-down motion axis motor 133, the left-right motion axis motor 135, and the front-back motion axis motor 137 to move along the up-down motion guide rail 134, the left-right motion guide rail 136, and the front-back motion guide rail 138 in three vertical directions.

[0024] One method for manufacturing battery packs is as follows: The first step is to place the first single battery cell in the battery module winding frame 20. The specific operation for placing the first single battery cell is as follows: Adjust the position of the alignment fixture 10 so that the suction cup 113 is directly above the single battery cell 30; adjust the position of the suction cup support backplate 116 and the alignment post support backplate 122 downwards, so that the pressure of the suction cup 113 is transmitted to the spring 114 through the suction cup support arm 115, causing the spring 114 to bend; activate the vacuum device, creating suction below the suction cup 113; install the spring 114 along the long side of the spring post 110; when the spring 114 bends, its top end is held still by the resistance of the top edge 112 of the suction cup support backplate, while its bottom end moves away from the spring post baffle 117; activate the vacuum device, with the vacuum pump interface connected to the vacuum pump vent 1 on the back of the suction cup support backplate 116. 19 is connected, and suction cup 113 has suction force below, which moves the single battery 30 into the winding frame 20; the position of the first single battery in the winding frame 20 must meet the following requirements: the difference between the distance from the center line of the battery to the side wall of the winding frame is less than a certain set value; adjust the position of the alignment fixture 10 so that the lower surface of the battery contacts the bottom surface of the winding frame; adjust the position of the insulating rod 1245 in the alignment post 1244 so that the insulating rod 1245 contacts the edge of the tab side of the single battery 30; stop the vacuum device, suction cup 113 loses suction force, and the single battery 30 is placed in the winding frame 20; adjust the position of the suction cup support back plate 116 and the alignment post support back plate 122 so that the alignment fixture 10 is completely removed from the winding frame 20.

[0025] The second step is to place and attach the inter-battery filler as a separator on the surface of the first battery facing upwards.

[0026] The third step is to place and attach the next single battery cell 30. The specific operation for placing the single battery cell 30 is as follows: Adjust the positions of the suction cup support backplate 116 and the alignment post support backplate 122 so that the suction cup 113 is directly above the single battery cell, with the first insulating rod 1235 in contact with the bottom sealing edge of the battery and the second insulating rod 1245 in contact with the battery cell's electrode tabs, thus completing the alignment of the single battery cell; adjust the position of the alignment fixture 10 downwards to create contact and pressure between the suction cup 113 and the single battery cell. The pressure of the suction cup 113 is transmitted to the spring 114 through the suction cup support arm 115, causing the spring 114 to bend; activate the vacuum device, creating suction force below the suction cup 113; adjust the position of the alignment fixture 10 so that the lower surface of the battery... Contact the bottom surface of the winding frame; if the second alignment post 1244 cannot pass through the winding frame 20 due to space limitations, remove the second alignment post positioning pin 1233, remove the second alignment post beam 1241 from the alignment post support arm 1213, move the position of the alignment fixture 10 so that the alignment post support crossbar positioning hole 1212 extends out of the winding frame 20, then reinstall the second alignment post beam 1241 and re-fix it with the second alignment post positioning pin 1233; stop the vacuum device, the suction cup 113 loses suction, and the single battery is placed in the winding frame 20; adjust the position of the alignment fixture back plate 122 so that the alignment fixture 10 completely leaves the winding frame 20.

[0027] The fourth step is to complete the welding of the individual battery tabs. The welding method involves moving the supporting winding frame 20 and the alignment fixture 10 so that the aligned tabs are below the welding head, and then starting the welding equipment to complete the welding. After welding, the tabs are insulated.

[0028] Fifth, repeat steps two through four until all the required number of individual cells have been placed, glued, and soldered.

[0029] The advantages and positive effects of this invention are: the manufacturing method of the high-alignment battery pack designed in this invention can make the individual cells fully aligned, avoiding phenomena such as cracking and deformation of the battery surface caused by the edges of some individual cells pressing against the surface of adjacent individual cells.

[0030] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An alignment tooling for fabricating high-alignment battery packs, characterized in that, The system comprises an alignment post module, a suction cup module, and a motion mechanism. The alignment module includes an alignment post and an insulating rod. The alignment post has a transverse threaded hole, into which the insulating rod, screwed into the threaded hole, extends laterally and contacts the battery seal or battery tab. When picking up a single battery cell, the insulating rod abuts against the side of the battery seal or tab. By adjusting the position of the suction cup, battery alignment is achieved. The suction cup module includes a vacuum suction cup whose length and width sides in contact with the battery are larger than those of the single battery cell, used to move the single battery cell into the battery module winding frame. The motion mechanism simultaneously drives the alignment module and the suction cup module to move.

2. The alignment fixture for fabricating high-alignment battery packs according to claim 1, characterized in that, The suction cup can move up and down under the drive of the suction cup support arm. When it moves downward, it encounters resistance and generates slowly changing pressure through spring compression, which alleviates damage to the individual battery cells caused by excessive force.

3. The alignment fixture for fabricating high-alignment battery packs according to claim 1, characterized in that, Use the insulating rod on the alignment fixture to contact the battery seal and battery tabs. Use a vacuum suction cup to pick up the individual battery cells that need to be aligned. If the battery position does not meet the alignment requirements, stop vacuum suction, adjust the position of the alignment fixture, and use the insulating rod on the alignment fixture to contact the battery seal and battery tabs again to start vacuum suction.

4. The alignment fixture for fabricating high-alignment battery packs according to claim 1, characterized in that, The alignment post includes an alignment post support back plate (122), a first alignment post (1234) with threaded holes, a second alignment post (1244) with threaded holes, an alignment post support crossbar (1213), a first insulating rod (1235), and a second insulating rod (1234). The alignment post support crossbar (1213) is horizontally fixed to one side of the upper part of the alignment post support back plate (122). The alignment post support crossbar (1213) has multiple threaded holes. The first alignment post (1234) and the second alignment post (1244) are vertically screwed downwards onto the alignment post support crossbar (1213) at a certain distance. The first insulating rod (1235) is screwed into the threaded hole of the first alignment post (1234), and the second insulating rod (1245) is screwed into the threaded hole of the second alignment post (1244). The first insulating rod (1235) is perpendicular to the alignment post support crossbar (1213), and the second insulating rod (1234) is parallel to the alignment post support crossbar (1213). The suction cup module includes a suction cup (113), a suction cup support back plate (116), and a suction cup support arm (115). The suction cup support back plate (116) and the alignment column support back plate (122) both have multiple connecting rod through holes (118) on their sides. A through connecting rod (111) passing through the connecting rod through hole (118) connects the suction cup support back plate (116) and the alignment column support back plate (122). The suction cup support arm (115) is integrally formed with the suction cup (113). The suction cup support arm (115) and the suction cup support back plate (116) are connected by a sliding groove. The suction cup support arm (115) can move in the up and down direction. The motion mechanism is fixed to the alignment column support back plate (122) by screws, and at the same time drives the alignment module and suction cup module to move in three directions: front and back, up and down, and left and right.

5. A manufacturing process for a high-alignment battery pack, characterized in that, include: The individual cells are placed, pasted, and welded in a winding frame. The alignment process of the individual cells is assisted by the alignment fixture described in any one of claims 1-4, and includes the following steps: First, adjust the position of the alignment fixture so that the vacuum suction cup is directly above the individual battery. Start the vacuum device to move the individual battery into the winding frame. Adjust the position of the alignment fixture so that the lower surface of the battery contacts the bottom surface of the winding frame. Adjust the position of the insulating rod in the alignment column so that the insulating rod contacts the edge of the tab side of the individual battery. Stop the vacuum device, the vacuum suction cup loses its suction force, and the individual battery is placed in the winding frame. The motion mechanism drives the alignment module, and the alignment module drives the suction cup module to make the alignment fixture completely leave the winding frame. The second step is to place and attach the inter-battery filler as a separator on the surface of the first battery facing upwards. The third step is to place and attach the next individual battery: Adjust the positions of the suction cup support backplate and the alignment post support backplate so that the suction cup is directly above the individual battery, and the first insulating rod is in contact with the bottom sealing edge of the battery, and the second insulating rod is in contact with the battery tab, thus completing the alignment of the individual battery; adjust the position of the alignment fixture downwards so that the suction cup and the individual battery make contact and exert pressure, and start the vacuum device so that the suction cup has suction force below; adjust the position of the alignment fixture so that the lower surface of the battery contacts the bottom surface of the winding frame; stop the vacuum device, the suction cup loses suction force, and the individual battery is placed in the winding frame; adjust the position of the alignment fixture backplate so that the alignment fixture is completely removed from the winding frame; Step 4, welding of individual battery tabs: By moving the support winding frame and alignment fixture, the aligned tabs are positioned below the welding head. The welding equipment is then started to complete the welding. After welding, the tabs are insulated. Fifth, repeat steps two through four until all the required number of individual cells have been placed, glued, and soldered.

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