Positioning device and battery processing equipment

Abstract

The present invention relates to a positioning device and battery processing equipment. The positioning device includes a base, a first jig, and a second jig. The cells, adapter sheets, and top cover sheets to be welded can be supplied from a material supply station. Before passing through the first welding station, the second jig is first switched to a retracted position, allowing the second jig to retract the cells from the first jig, allowing pre-welding of tabs to the cells to be performed smoothly at the first welding station. After pre-welding of the tabs is completed, the second jig is switched to a welding position, thereby achieving positioning between the adapter sheet and the top cover sheet and the cells. In this way, the adapter sheet and the top cover sheet can be welded to the cells when passing through the second welding station and the second welding station. As can be seen from this, during the processing process, the cells are always positioned within the first jig, eliminating the need for multiple rotations. This avoids damage to the cells due to frequent gripping and positioning. Therefore, the positioning device and battery processing equipment described above can improve the yield of battery processing.

Description

[Technical Field]

[0001] [CROSS-REFERENCE TO RELATED APPLICATIONS] This disclosure claims priority to a Chinese patent application filed with the China Patent Office on August 18, 2023, bearing application number 202322225509.3 and entitled "Positioning Device and Battery Processing Equipment," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of lithium battery equipment, and in particular to a positioning device and battery processing equipment. [Background technology]

[0003] The production of lithium batteries generally requires multiple welding processes, for example, when manufacturing a certain type of lithium battery, it is necessary to first pre-weld tabs to the cell, and then weld an adapter sheet and a top cover sheet to the positive and negative tabs of the cell, respectively.

[0004] In a typical process, a robot arm first picks up a cell from the logistics line and places it in a pre-welding fixture, then a pre-welder performs processes such as tab pre-welding, cutting, and inspection. After pre-welding is complete, the robot arm transfers the cell to a tray on the logistics line and moves it to an adapter sheet welding station. After moving to a predetermined position, the cell is again picked up by the robot arm and placed in the adapter sheet welding fixture to complete adapter sheet welding and inspection. Similarly, after the adapter sheet welding is complete, the cell is again transferred by the robot arm to a tray on the logistics line and moves it to a top cover welding station. After moving to a predetermined position, the cell is picked up by the robot arm and placed in the top cover welding fixture to complete top cover sheet welding and inspection.

[0005] As can be seen from this, during the processing process, the cells must be rotated multiple times between the trays on the logistics line and each jig, so the cells must be clamped by the robot arm and repeatedly fed and unloaded. Furthermore, to ensure smooth welding, the cells must be repositioned after each transfer. Repeated clamping and positioning operations inevitably damage the cells, resulting in a decrease in battery yield. Summary of the Invention [Problem to be solved by the invention]

[0006] In view of this, it is necessary to provide a positioning device and battery processing equipment that can improve the yield of batteries in response to the above problems. [Means for solving the problem]

[0007] A positioning device for positioning a first workpiece and a second workpiece to be welded, comprising: With the base, a first jig attached to the base and capable of receiving and positioning a first workpiece; a second fixture capable of receiving and positioning a second workpiece, the second fixture including a welding position and a retracted position and operable to switch between the welding position and the retracted position; Here, positioning is achieved between the second workpiece in the second jig at the welding position and the first workpiece in the first jig, and the second jig at the retracted position retracts the first workpiece in the first jig.

[0008] In one embodiment, the base includes a bottom plate and a frame fixed to the surface of the bottom plate, the first jig is attached to the frame, a buffer position is formed in the frame, and the second jig in the retracted position is attached to the buffer position.

[0009] In one embodiment, an attaching material is provided at one end of the base and an attachable material is provided at the other end, and the attachable material of each positioning device can be attached to the attaching material of an adjacent positioning device to be held or separated.

[0010] In one embodiment, the fastening material includes two opposing fastening claws, the tips of which are bent inward to form a fastening holding portion, and the fastened material includes a roller, which can be inserted from top to bottom into the fastening holding portion to fasten and hold the fastened material and the fastening material together, and which can be removed from the fastening holding portion from bottom to top to separate the fastened material and the fastening material.

[0011] In one embodiment, a buffer mounting structure is provided on the base, a first positioning mounting structure is provided on the first jig, and a second positioning mounting structure is provided on the second jig, and the second positioning mounting structure is removably connected to any one of the first positioning mounting structure and the buffer mounting structure to fix the second jig in the welding position or the retracted position.

[0012] In one embodiment, the first jig is removably attached to the base.

[0013] In one embodiment, the first jig includes a positioning base and a pressing mechanism, the positioning base being capable of supporting a first workpiece, and the pressing mechanism being capable of pressing and holding the first workpiece against the positioning base.

[0014] In one embodiment, two of the first jigs are attached to the base, and two of the second jigs are arranged corresponding to each of the first jigs.

[0015] A battery processing facility, a rotating device in which a material supply station, a first welding station, a second welding station, and a third welding station are provided in this order on a transportation route; The positioning device according to any one of the above preferred embodiments, further comprising: a positioning device attached to the rotating device and driven by the rotating device to pass through the material supply station, the first welding station, the second welding station, and the third welding station; Here, the first jig is used to accommodate the cell, two second jigs are provided, and the two second jigs are used to accommodate the adapter sheet and the top cover sheet, respectively.

[0016] In one embodiment, a first operating mechanism is provided between the material supply station and the first welding station, and the first operating mechanism is capable of switching the second jig from the welding position to the retracted position; A second operating mechanism is provided between the first welding station and the second welding station, and the second operating mechanism is capable of switching the second jig from the retracted position to the welding position. [Effects of the Invention]

[0017] With the above-described positioning device and battery processing equipment, the cells, adapter sheet, and top cover sheet to be welded can be supplied from the material supply station. Before passing through the first welding station, the second jig is first switched to its retracted position, thereby preventing the second jig from interfering with the cutting and pre-welding operations of the cell tabs in the first jig. This allows the pre-welding of the tabs to the cells to be performed smoothly at the first welding station. After the pre-welding of the tabs is completed, the second jig can be further switched to its welding position to position the adapter sheet and top cover sheet to the cells. In this way, the adapter sheet and top cover sheet can be welded to the cells when passing through the second welding station and the second welding station. As can be seen from this, the cells are always positioned within the first jig during the processing process, eliminating the need for multiple rotations. This avoids damage to the cells due to frequent gripping and positioning. Therefore, the above-described positioning device and battery processing equipment can improve the yield of battery processing.

[0018] In order to more clearly explain the technical solutions in the embodiments of the present application or the prior art, the drawings that need to be used in the description of the embodiments or the prior art will be briefly described below. Obviously, the drawings in the following description are merely some embodiments of the present application, and those skilled in the art can also obtain other drawings based on these drawings without exerting any creative efforts. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a structural schematic diagram of a battery processing equipment according to a preferred embodiment of the present invention; [Figure 2] 2 is a front view of a positioning device in the battery processing facility shown in FIG. 1. [Figure 3] FIG. 3 is a left side view of the positioning device shown in FIG. 2. [Figure 4] FIG. 3 is a top view of the positioning device shown in FIG. 2. [Figure 5]1. FIG. 4 is a front view of the positioning device in the battery processing facility shown in FIG. 1 in another operating state. [Figure 6] FIG. 6 is a left side view of the positioning device shown in FIG. 5. [Figure 7] FIG. 6 is a top view of the positioning device shown in FIG. 5. DETAILED DESCRIPTION OF THE INVENTION

[0020] In order to make the above-mentioned objects, features, and advantages of the present invention clearer and easier to understand, specific embodiments of the present invention will be described in detail below with reference to the drawings. In order to fully understand the present invention, many specific details will be set forth in the following description. However, the present invention can be embodied in various forms different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] In describing the present invention, it should be understood that the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of easily describing or simplifying the description of the present invention, and do not indicate or imply that the designated devices or elements necessarily have a particular orientation or must be constructed or operated in a particular orientation, and therefore should not be understood as limitations on the present invention.

[0022] It should be noted that the terms "first" and "second" are used solely for descriptive purposes and should not be understood as indicating or implying relative importance or the number of the indicated technical features. Accordingly, a feature qualified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, unless otherwise expressly and specifically limited, "plurality" means at least two, e.g., two, three, etc.

[0023] In the present invention, unless otherwise clearly and specifically specified and limited, the terms "attach," "connect," "connect," "fixed," etc. should be understood in a broad sense, and unless otherwise clearly limited, may mean, for example, fixedly connected, detachably connected, integral, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, internal communication between two elements, or an interactive relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0024] In the present invention, unless otherwise clearly specified or limited, when a first feature is located "above" or "below" a second feature, the first and second features may be in direct contact, or may be in indirect contact via an intermediate medium. Furthermore, when a first feature is located "above," "above," or "on the upper surface" of a second feature, it means that the first feature may be located directly above or diagonally above the second feature, or that the horizontal height of the first feature is higher than that of the second feature. When a first feature is located "below," "below," or "on the lower surface" of a second feature, it means that the first feature may be located directly below or diagonally below the second feature, or that the horizontal height of the first feature is lower than that of the second feature.

[0025] It should be understood that when an element is referred to as being "fixed" or "mounted" on another element, it may be directly connected to the other element, or intermediate elements may be present. When an element is referred to as being "connected" to another element, it may be directly connected to the other element, or intermediate elements may also be present. As used herein, the terms "vertical," "horizontal," "top," "bottom," "left," "right," and similar expressions are used for descriptive purposes only and do not represent the only embodiment.

[0026] 1, the present invention provides a battery processing equipment 10 and a positioning device 100. Here, the battery processing equipment 10 includes a positioning device 100 and a rotating device 200.

[0027] The battery processing equipment 10 can pre-weld tabs to the cells and weld adapter and top cover sheets to the positive and negative tabs of the cells, respectively. The positioning device 100 is used to position the cells, adapter and top cover sheets to be welded so that the adapter and top cover sheets are in the required positions for welding to the cells.

[0028] The positioning device 100 is attached to a turning device 200, and the turning device 200 can be driven to move the positioning device 100 along a predetermined transportation route. Specifically, a material supply station, a first welding station, a second welding station, and a third welding station are provided in this order along the transportation route of the turning device 200, and the positioning device 100 can be driven by the turning device 200 to pass through the material supply station, the first welding station, the second welding station, and the third welding station in this order.

[0029] The first, second, and third welding stations may each be provided with a corresponding welding device (not shown), e.g., an ultrasonic welder, or other performing elements. The cells, adapter sheets, and top cover sheets can be fed to the positioning device 100 at a material feeding station. As the positioning device 100 passes through the first welding station, it can perform operations such as pre-welding tabs, cutting, and sensing on the cells. As the positioning device 100 passes through the second welding station, it can weld the adapter sheet to the positive electrode tab of the cell. As the positioning device 100 passes through the third welding station, it can weld the top cover sheet to the negative electrode tab of the cell. To ensure continuous processing, a plurality of positioning devices 100 are typically attached to the turning device 200.

[0030] In addition, a material removal station is generally provided after the third welding station, where the cell after welding is removed and moved to other equipment for subsequent processing.

[0031] The turning device 200 may be in the form of a belt, a conveyor chain, or the like, and may be driven by a driving member such as a motor to move the positioning device 100 along the transportation route. Specifically, in this embodiment, the turning device 200 includes an upper transport line 210, a lower transport line 220, and a lift-up mechanism 230.

[0032] The upper layer transport line 210 is substantially parallel to the lower layer transport line 220, and the positioning device 100 can be transported along the upper layer transport line 210 and the lower layer transport line 220 in opposite directions. Lift-up mechanisms 230 are provided at both ends of the lower layer transport line 220 and the lift-up mechanism 230, and can transport the positioning device 100 on the upper layer transport line 210 to the lower layer transport line 220, and can also transport the positioning device 100 on the lower layer transport line 220 to the upper layer transport line 210, thereby allowing the positioning device 100 to circulate between the material supply station, the first welding station, the second welding station, the third welding station, and the material removal station in sequence.

[0033] 2, 3 and 4, a positioning device 100 in a preferred embodiment of the present invention includes a base 110, a first jig 120 and a second jig 130.

[0034] The base 110 serves as a support, and the first jig 120 and the second jig 130 can be attached to the base 110. Here, the positioning device 100 is attached to the turning device 200 by the base 110, and the base 110 can be slidably attached to the turning device 200 by elements such as a slider or guide rail.

[0035] In this embodiment, an attaching material 113 is provided at one end of the base 110, and an attachable material 114 is provided at the other end, and the attachable material 114 of each positioning device 100 can be attached to the attaching material 113 of an adjacent positioning device 100 to hold or separate it.

[0036] The engaging members 113 and engaged members 114 of two adjacent positioning devices 100 are interlocked with each other, thereby realizing a connection between the head and tail of multiple positioning devices 100. In this way, when the rotating device 200 drives multiple positioning devices 100 to move along a transport route, simply driving one or some of the positioning devices 100 to move can drive the other positioning devices 100 to move simultaneously. In this way, the number of driving members in the rotating device 200 can be significantly reduced, simplifying the structure and reducing costs.

[0037] Furthermore, in this embodiment, the fastening material 113 includes two fastening claws 1131 arranged opposite each other, and the tips of the two fastening claws 1131 are bent inward and surrounded as an attachment holding portion (not shown), and the fastened material 114 includes a roller 1141, which can be inserted into the attachment holding portion in the vertical direction and attached to fasten and hold the fastened material 114 and the fastening material 113, and can also be removed from the attachment holding portion in the opposite direction to separate the fastened material 114 and the fastening material 113.

[0038] Specifically, the engaging claws 1131 are bent into an L-shape, and the space between the two L-shaped engaging claws 1131 is surrounded by an engaging and holding portion. When the roller 1141 is inserted from top to bottom between the two L-shaped engaging claws 1131, the bent ends of the engaging claws 1131 can stop the roller 1141, i.e., the engaged material 114 can be caught, and the two positioning devices 100 are connected. Furthermore, the roller 1141 and the engaging claws 1131 are rotatably fitted together, making it difficult for them to stick. When it is necessary to separate the two positioning devices 100, one positioning device 100 is lifted and the roller 1141 is moved from bottom to top to remove it from the engaging and holding portion, which makes it convenient to both catch and release the engaged material 114.

[0039] 1 as an example, when one positioning device 100 on the upper transport line 210 needs to be transferred to the lower transport line 220, the lift-up mechanism 230 first lifts up the positioning device 100, thereby releasing the fastened material 114 from the fastening material 113 of the adjacent positioning device 100, and thereby separating the positioning device 100 from the adjacent positioning device 100. Next, the lift-up mechanism 230 places the positioning device 100 on the lower transport line 220, and inserts its roller 1141 into the fastening holder of the adjacent positioning device 100 to engage with it, thereby connecting the positioning device 100 to the positioning device 100 on the lower transport line 220. When one positioning device 100 on the lower transport line 220 needs to be transferred to the upper transport line 210, the process is essentially the same. As can be seen from this, in the process of transporting the positioning device 100, it is sufficient to lift and lower it using the lift-up mechanism 230, and no separate operation is required to release and re-engage the engaged material 114 and the engaging material 113, which makes operation more convenient and is advantageous for improving processing efficiency.

[0040] More specifically, in this embodiment, the base 110 includes a bottom plate 111 and a frame 112 fixed to the surface of the bottom plate 111. The bottom plate 111 is generally rectangular, and the attached member 114 and the attaching member 113 are respectively provided at both ends of the bottom plate 111 in the longitudinal direction, and the first jig 120 and the second jig 130 can be attached to the frame 112.

[0041] The first jig 120 can accommodate and position the first workpiece, and the second jig 130 can accommodate and position the second workpiece. Specifically, in this embodiment, the first workpiece refers to the cell, and the second workpiece refers to the adapter sheet and the top cover sheet. Furthermore, in this embodiment, the first jig 120 includes a positioning base 121 and a pressing mechanism 122. The positioning base 121 can accommodate the first workpiece, and the pressing mechanism 122 can press and hold the first workpiece against the positioning base 121.

[0042] The first workpiece is a cell. The cell fed into the first jig 120 is generally loose, and the pressing mechanism 122 can maintain the cell in a pressed state, preventing deformation of the cell. The positioning base 121 is generally made of a metal material, has relatively high mechanical strength, and is resistant to deformation. Specifically, it may be a block-shaped structure with a storage chamber. The pressing mechanism 122 may include a cylinder and a pressing plate, and the pressing plate is driven by the cylinder to press the cell in the positioning base 121.

[0043] Only one first jig 120 may be provided on the base 110, or multiple first jigs 120 may be provided. When multiple first jigs 120 are provided on the base 110, second jigs 130 are provided corresponding to the first jigs 120, and the first and second workpieces to be welded are positioned on the corresponding first jigs 120 and second jigs 130, respectively. Hereinafter, descriptions regarding the relative positional relationship and connection relationship between the first jig 120 and the second jig 130 are all based on the corresponding first jig 120 and second jigs 130. Only one second jig 130 may be arranged corresponding to each first jig 120, or multiple second jigs 130 may be arranged corresponding to each first jig 120. Taking FIG. 2 as an example, two first jigs 120 are provided on the base 110 so that two first workpieces, i.e., cells, can be positioned simultaneously, and two second jigs 130 are provided corresponding to each first jig 120 to accommodate an adapter sheet and a top cover sheet, respectively.

[0044] It should be noted that in other embodiments, the positioning device 100 may be used to weld two or more other workpieces, in which case the number of second fixtures 130 corresponding to each first fixture 120 may be adjusted depending on the number of second workpieces to be welded.

[0045] The relative position of the second jig 130 and the first jig 120 is not fixed but variable. Furthermore, the second jig 130 includes a welding position and a retracted position, and is operably switched between the welding position and the retracted position.

[0046] 2 to 4, the relative positions of the second jig 130 and the first jig 120 are determined in advance, and when the second jig 130 is in the welding position, the second workpiece in the second jig 130 and the first workpiece in the first jig 120 are positioned correctly. That is, the second workpiece in the second jig 130 and the first workpiece in the first jig 120 are exactly in the positions required for welding. Specifically, the two second jigs 130 in the welding position are located on either side of the first jig 120, and the adapter sheet and the top cover sheet in the two second jigs 130 are exactly in the positions required for welding to the cell.

[0047] As shown in Figures 5 to 7, when the second jig 130 is in the retracted position, the first workpiece in the first jig 120 can be retracted, and the second jig 130 does not interfere with the processing of the first workpiece. When processing a battery, the cells, adapter sheets, and top cover sheets to be welded can be first fed into the first jig 120 and two second jigs 130, respectively, at the material feeding station. Before the positioning device 100 is driven by the rotating device 200 to pass through the first welding station, the two second jigs 130 are first switched from the welding position to the retracted position. In this way, the second jig 130 retracts the cells in the first jig 120, preventing the second jig 130 from interfering with the cell tab cutting and pre-welding operations, thereby allowing for smooth pre-welding of the tabs to the cells. After the pre-welding of the tabs is completed, the two second jigs 130 are switched from the retracted position to the welding position. In this case, the cell, the adapter sheet, and the top cover sheet are positioned relative to each other. Therefore, when the positioning device 100 is driven by the rotating device 200 to pass through the second and third welding stations, the adapter sheet and the top cover sheet can be welded to the positive and negative tabs of the cell, respectively.

[0048] As can be seen from this, during the battery processing, the cells, adapter sheet, and top cover sheet are all positioned within the corresponding jigs, and the jigs are not replaced, so the positioning consistency is relatively high, which is advantageous for improving welding stability. Furthermore, because the cells are always positioned within the first jig 120, there is no need to rotate them multiple times, which avoids damaging the cells due to frequent gripping and positioning, which is advantageous for improving the yield of battery processing.

[0049] Specifically, in this embodiment, a buffer position is formed on the frame 112, and the second jig 130 in the retracted position is attached to the buffer position. The buffer position is generally located near the bottom plate 111 of the frame 112 and below the first jig 120. The buffer position can provide a space for attaching the second jig 130 in the retracted position, thereby preventing the second jig 130 from interfering with other elements during the process of moving synchronously with the base 110 and the first jig 120.

[0050] 2, 4, 5 and 7 again, in this embodiment, the base 110 is provided with a buffer mounting structure 115, the first jig 120 is provided with a first positioning mounting structure 123, and the second jig 130 is provided with a second positioning mounting structure (not shown). Here, the second positioning mounting structure is detachably connected to either one of the first positioning mounting structure 123 and the buffer mounting structure 115, and can fix the second jig 130 in a welding position or a retracted position.

[0051] Specifically, the first positioning and mounting structure 123, the second positioning and mounting structure 115, and the buffer mounting structure 115 may be in the form of pins, pins, or clips, which can be used to position and mount the second jig 130 relative to one another. When switching the second jig 130 from the welding position to the retracted position, the second positioning and mounting structure 123 is first disengaged from the first positioning and mounting structure 123, and then the second positioning and mounting structure 115 is engaged with the buffer mounting structure 115. When switching the second jig 130 from the retracted position to the welding position, the second positioning and mounting structure 123 is first disengaged from the buffer mounting structure 115, and then the second positioning and mounting structure 123 is engaged with the first positioning and mounting structure 123. When the second positioning and mounting structure 123 is attached to the first positioning and mounting structure 123 and the buffer mounting structure 115 using the second positioning and mounting structure 123, rattle of the second jig 130 can be prevented, and the positioning accuracy of the second jig 130 can be ensured.

[0052] Referring again to FIG. 1, in this embodiment, a first operating mechanism 300 is provided between the material supply station and the first welding station, and the first operating mechanism 300 is capable of switching the second jig 130 from the welding position to the retracted position, and a second operating mechanism 400 is provided between the first welding station and the second welding station, and the second operating mechanism 400 is capable of switching the second jig 130 from the retracted position to the welding position.

[0053] The first operating mechanism 300 and the second operating mechanism 400 may have the same structure, and both may employ robot arms. When the positioning device 100 passes through the first operating mechanism 300 and the second operating mechanism 400, the first operating mechanism 300 and the second operating mechanism 400 can switch the position of the second jig 130, thereby improving the degree of automation of the battery processing equipment 10.

[0054] In this embodiment, the first jig 120 is removably attached to the base 110. Therefore, when removing the cells after welding, the first jig 120 can be removed from the base 110 together with the cells therein, and the entire assembly can be removed. In this way, the cells can be maintained in a state where they are positioned and pressed within the first jig 120, preventing the cell tabs from being torn, and further improving the yield of battery processing.

[0055] Furthermore, in this embodiment, a jig return station is further provided after the material removal station, where an empty first jig 120 from another facility can be placed and attached to the base 110 at the jig return station to fill in the absence of the first jig 120 by removing the material from the entire cell, thereby ensuring that the first jig 120 is present in any positioning device 100 that has returned to the material supply station.

[0056] Obviously, in other embodiments, the first jig 120 may be fixed to the base 110, and when the cell is to be removed, the cell may simply be removed from the first jig 120. Alternatively, the first jig 120 may be rotated together with the cell, and may be attached to the base 110 at a material supply station.

[0057] With the above-described positioning device 100 and battery processing equipment 10, the cells, adapter sheets, and top cover sheets to be welded can be supplied from the supply station. Before passing through the first welding station, the second jig 130 is first switched to its retracted position, thereby preventing the second jig 130 from interfering with the cutting and pre-welding operations of the cell tabs in the first jig 120. This allows for smooth pre-welding of the tabs to the cells in the first welding station. After the pre-welding of the tabs is completed, the second jig 130 can be further switched to the welding position to position the adapter sheets and top cover sheets to the cells. In this way, the adapter sheets and top cover sheets can be welded to the cells when passing through the second welding station and the second welding station. As can be seen, during the processing process, the cells are constantly positioned within the first jig 120 and do not need to be rotated multiple times. This avoids damage to the cells due to frequent gripping and positioning. Therefore, the positioning device 100 and the battery processing equipment 10 described above can improve the yield of battery processing.

[0058] The technical features of the above-described embodiments can be combined in any manner. For the sake of simplicity, we have not described all possible combinations of the technical features in the above-described embodiments. However, unless there is a conflict, combinations of these technical features should be considered within the scope described in this specification.

[0059] The above-described examples merely represent some embodiments of the present invention, and although the description is relatively specific and detailed, it should not be understood as limiting the scope of the present invention patent. It should be noted that those skilled in the art can make some modifications and improvements without departing from the spirit of the present invention, and all of them fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention patent shall be pursuant to the scope of the claims. [Explanation of symbols]

[0060] 10 Battery processing equipment 100 Positioning device 110 base 111 Bottom plate 112 frames 113 Adhesive material 1131 Attachment claw 114 Anchored material 141 Laura 115 Buffer mounting structure 120 First Jig 121 Positioning base 122 Pressing mechanism 123 First positioning and mounting structure 130 Second Jig 200 Rotating Device 210 Upper Transport Line 220 Lower Transport Line 230 Lift-up mechanism 300 First operating mechanism 400 Second operating mechanism

Claims

1. A positioning device for positioning a first workpiece and a second workpiece to be welded, comprising: A base (110); a first jig (120) attached to the base (110) and capable of receiving and positioning a first workpiece; a second fixture (130) capable of receiving and positioning a second workpiece, the second fixture including a welding position and a retracted position and operable to switch between the welding position and the retracted position; Here, the positioning device is characterized in that positioning is achieved between the second workpiece in the second jig (130) at the welding position and the first workpiece in the first jig (120), and the second jig (130) at the retracted position retracts the first workpiece in the first jig (120).

2. 2. The positioning device according to claim 1, wherein the base (110) includes a bottom plate (111) and a frame (112) fixed to the surface of the bottom plate, the first jig (120) is attached to the frame (112), a buffer position is formed in the frame (112), and the second jig (130) in the retracted position is attached to the buffer position.

3. The positioning device of claim 1, characterized in that an attaching material (113) is provided at one end of the base (110) and an attachable material (114) is provided at the other end, and the attachable material (114) of each positioning device (100) can be attached to and held by or separated from the attaching material (113) of an adjacent positioning device.

4. The positioning device described in claim 3, characterized in that the engaging material (113) includes two opposing engaging claws (1131), the tips of which are bent inward and surrounded as an engaging and holding portion, the engaged material (114) includes a roller (1141), which can be inserted into the engaging and holding portion from top to bottom to engage and hold the engaged material (114) and the engaging material (113), and can be removed from the engaging and holding portion from bottom to top to separate the engaged material (114) and the engaging material (113).

5. 2. The positioning device of claim 1, wherein the base (110) is provided with a shock-absorbing mounting structure (115), the first jig (120) is provided with a first positioning mounting structure (123), and the second jig (130) is provided with a second positioning mounting structure, and the second positioning mounting structure is detachably connected to any one of the first positioning mounting structure (123) and the shock-absorbing mounting structure (115) to fix the second jig (130) at the welding position or the retracted position.

6. The positioning device of claim 1 , wherein the first fixture (120) is removably attached to the base (110).

7. 2. The positioning device according to claim 1, wherein the first jig (120) includes a positioning base (121) and a pressing mechanism (122), the positioning base (121) being capable of placing a first workpiece thereon, and the pressing mechanism (122) being capable of pressing and holding the first workpiece against the positioning base (121).

8. The positioning device according to any one of claims 1 to 7, characterized in that two of the first jigs (120) are attached to the base (110), and two of the second jigs (130) are arranged corresponding to each of the first jigs (120).

9. A battery processing facility, a rotating device (200) on which a material supply station, a first welding station, a second welding station, and a third welding station are sequentially provided on a transportation route; a positioning device (100) according to any one of claims 1 to 8, which is attached to the turning device (200) and is driven by the turning device (200) to pass through the material supply station, the first welding station, the second welding station, and the third welding station; Here, the battery processing equipment is characterized in that the first jig (120) is used to accommodate the cells, two second jigs (130) are provided, and the two second jigs (130) are used to accommodate the adapter sheet and the top cover sheet, respectively.

10. a first operating mechanism (300) is provided between the material supply station and the first welding station, and the first operating mechanism (300) is capable of switching the second jig (130) from the welding position to the retracted position; 10. The battery processing equipment according to claim 9, wherein a second operating mechanism (400) is provided between the first welding station and the second welding station, and the second operating mechanism (400) is capable of switching the second jig from the retracted position to the welding position.

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