Positioning device and battery processing apparatus

Abstract

A positioning device (100), comprising a female socket (110), a first jig (120) and a second jig (130). A cell to be welded, a connecting piece and a top cap can complete feeding at a feeding station, and before passing through a first welding station, the second jig (130) is firstly switched to a clearance position, such that the second jig (130) forms a clearance for the cell in the first jig (120), and the cell can thus be smoothly pre-welded with an electrode tab at the first welding station. After pre-welding of the electrode tab is completed, the second jig (130) is switched to a welding position, so as to align the connecting piece and the top cap, as well as the cell. In this way, when passing through a second welding station, the connecting piece and the top cap can be welded to the cell. It can be seen that the cell is always positioned in the first jig (120) during processing, which does involve multiple transfers, thereby avoiding damage to the cell due to frequent clamping and positioning. Therefore, the positioning device (100) can improve the yield of battery processing. The present invention also relates to a battery processing apparatus (10).

Description

Positioning device and battery processing equipment

[0001] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on August 18, 2023, with application number 202322225509.3 and application name “Positioning Device and Battery Processing Equipment,” the entire contents of which are incorporated herein by reference. Technical Field

[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 Art

[0003] The production of lithium batteries typically involves multiple welding steps. For example, when manufacturing a specific lithium battery model, the tabs must first be pre-welded to the battery cell, followed by welding the adapter and top cover to the positive and negative tabs, respectively.

[0004] The general process is that the robot first grabs the battery cell from the logistics line and places it in the pre-welding jig, and then the pre-welding machine performs pre-welding, cutting and testing of the tabs; after the pre-welding is completed, the robot moves the battery cell to the logistics line tray and transfers it to the adapter welding station; after it is in place, the battery cell is grabbed by the robot again and placed in the adapter welding jig to complete the welding and testing of the adapter; similarly, the battery cell that has completed the adapter welding is again moved by the robot to the logistics line tray and transferred to the top cover welding station; after it is in place, the battery cell is grabbed by the robot and placed in the top cover welding jig to complete the welding and testing of the top cover.

[0005] As can be seen, during the processing, battery cells need to be repeatedly transferred between the logistics line pallets and various jigs. Therefore, the cells need to be repeatedly loaded and unloaded by the robot. Furthermore, the cells must be repositioned after each transfer to ensure smooth welding. Repeated gripping and positioning operations inevitably damage the cells, resulting in a reduction in battery yield.

[0006] Summary of the Invention

[0007] Based on this, it is necessary to provide a positioning device and battery processing equipment that can improve the battery yield in order to address the above problems.

[0008] A positioning device for positioning a first workpiece and a second workpiece to be welded, the positioning device comprising:

[0009] Mother seat;

[0010] A first jig, mounted on the female seat, capable of accommodating and positioning the first workpiece; and

[0011] a second jig capable of accommodating and positioning a second workpiece, the second jig comprising a welding position and an avoidance position, and operable to switch between the welding position and the avoidance position;

[0012] The second workpiece in the second jig located at the welding position is positioned with the first workpiece in the first jig, and the second jig located at the avoidance position avoids the first workpiece in the first jig.

[0013] In one embodiment, the mother seat includes a base plate and a frame fixed to the surface of the base plate, the first fixture is installed on the frame, a cache position is formed on the frame, and the second fixture located at the avoidance position is installed on the cache position.

[0014] In one embodiment, a clamping piece is provided at one end of the female seat, and a bridging piece is provided at the other end. The bridging piece of each positioning device can be clamped or separated from the clamping piece of the adjacent positioning device.

[0015] In one embodiment, the clamping member includes two oppositely arranged claws, the ends of the two claws are bent inward and surrounded to form a clamping portion, and the lap joint includes a roller, which can be clamped into the clamping portion from top to bottom to clamp the lap joint and the clamping member, and can be disengaged from the clamping portion from bottom to top to separate the lap joint from the clamping member.

[0016] In one embodiment, the female seat is provided with a cache mounting structure, the first jig is provided with a first positioning mounting structure, and the second jig is provided with a second positioning mounting structure. The second positioning mounting structure can be detachably connected to either the first positioning mounting structure or the cache mounting structure to fix the second jig at the welding position or the avoidance position.

[0017] In one embodiment, the first fixture is detachably mounted on the female seat.

[0018] In one embodiment, the first fixture includes a positioning base and a pressing mechanism. The positioning base is capable of carrying the first workpiece, and the pressing mechanism is capable of pressing the first workpiece against the positioning base.

[0019] In one embodiment, two first jigs are installed on the female seat, and each first jig is correspondingly configured with two second jigs.

[0020] A battery processing device, comprising:

[0021] A transfer device, wherein a loading station, a first welding station, a second welding station and a third welding station are sequentially arranged on a conveying route of the transfer device; and

[0022] The positioning device as described in any one of the above preferred embodiments is installed on the circulation device and can pass through the loading station, the first welding station, the second welding station and the third welding station under the drive of the circulation device;

[0023] The first fixture is used to accommodate the battery cell, and two second fixtures are provided, and the two second fixtures are used to accommodate the adapter piece and the top cover piece respectively.

[0024] In one embodiment, a first operating mechanism is provided between the loading station and the first welding station, and the first operating mechanism is capable of switching the second fixture from the welding position to the avoidance position;

[0025] 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 fixture from the avoidance position to the welding position.

[0026] With the positioning device and battery processing equipment described above, the battery cells, adapter plates, and top cover plates to be welded can be loaded at the loading station. Before passing through the first welding station, the second jig is first switched to a avoidance position to prevent the second jig from interfering with the cutting and pre-welding operations of the battery cell tabs in the first jig. Therefore, the tabs of the battery cells can be pre-welded smoothly at the first welding station. After the tabs are pre-welded, the second jig is switched to the welding position to position the adapter plates and top cover plates relative to the battery cells. In this way, the adapter plates and top cover plates can be welded to the battery cells when passing through the second welding station and the second welding station. It can be seen that the battery cells are always positioned in the first jig during the processing process, without the need for multiple transfers, thus avoiding damage to the battery cells caused by frequent clamping and positioning. Therefore, the positioning device and battery processing equipment described above can improve the yield rate of battery processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] FIG1 is a schematic structural diagram of a battery processing device in a preferred embodiment of the present invention;

[0029] FIG2 is a front view of a positioning device in the battery processing equipment shown in FIG1 ;

[0030] FIG3 is a left side view of the positioning device shown in FIG2 ;

[0031] FIG4 is a top view of the positioning device shown in FIG2 ;

[0032] FIG5 is a front view of the positioning device in the battery processing equipment shown in FIG1 in another working state;

[0033] FIG6 is a left side view of the positioning device shown in FIG5;

[0034] FIG. 7 is a top view of the positioning device shown in FIG. 5 .

[0035] Explanation of the accompanying drawings: 10. Battery processing equipment; 100. Positioning device; 110. Mother seat; 111. Bottom plate; 112. Frame; 113. Connector; 1131. Claw; 114. Lever; 1141. Roller; 115. Cache mounting structure; 120. First fixture; 121. Positioning base; 122. Pressing mechanism; 123. First positioning mounting structure; 130. Second fixture; 200. Circulation device; 210. Upper conveyor line; 220. Lower conveyor line; 230. Lifting mechanism; 300. First operating mechanism; 400. Second operating mechanism. DETAILED DESCRIPTION

[0036] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0039] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0042] 1 , the present invention provides a battery processing device 10 and a positioning device 100 . The battery processing device 10 includes the positioning device 100 and a transfer device 200 .

[0043] The battery processing equipment 10 can pre-weld the tabs of the battery cells and weld the adapter and top cover to the positive and negative tabs of the battery cells, respectively. The positioning device 100 is used to position the battery cells, adapter, and top cover to be welded, so that the adapter and top cover are in the required welding position relative to the battery cells.

[0044] The positioning device 100 is mounted on the circulation device 200, which drives the positioning device 100 along a preset conveying route. Specifically, the conveying route of the circulation device 200 is sequentially arranged with a loading station, a first welding station, a second welding station, and a third welding station. Driven by the circulation device 200, the positioning device 100 can sequentially pass through the loading station, the first welding station, the second welding station, and the third welding station.

[0045] The first welding station, the second welding station, and the third welding station can be equipped with corresponding welding devices (not shown), such as ultrasonic welding machines and other actuators. The battery cells, adapters, and top cover sheets can be loaded onto the positioning device 100 at the loading station. When the positioning device 100 passes through the first welding station, it can perform operations such as pre-welding, cutting, and testing of the tabs on the battery cells. When the positioning device 100 passes through the second welding station, it can weld the adapter sheet to the positive tab of the battery cell. When the positioning device 100 passes through the third welding station, it can weld the top cover sheet to the negative tab of the battery cell. Multiple positioning devices 100 are generally installed on the circulation device 200 to ensure that the processing process continues.

[0046] In addition, a blanking station is generally provided after the third welding station, at which the welded battery cells can be blanked and transferred to other equipment for subsequent processes.

[0047] The circulation device 200 can be in the form of a conveyor belt, a conveyor chain, etc., and can be driven by a motor or other driving member to move the positioning device 100 along the conveying route. Specifically in this embodiment, the circulation device 200 includes an upper conveying line 210, a lower conveying line 220 and a lifting mechanism 230.

[0048] The upper conveyor line 210 is substantially parallel to the lower conveyor line 220, and the positioning device 100 can be transported in opposite directions on the upper conveyor line 210 and the lower conveyor line 220. The lifting mechanism 230 is provided at both ends of the lower conveyor line 220 and the lifting mechanism 230, and can transfer the positioning device 100 on the upper conveyor line 210 to the lower conveyor line 220, and can also transfer the positioning device 100 on the lower conveyor line 220 to the upper conveyor line 210, so that the positioning device 100 can circulate sequentially among the loading station, the first welding station, the second welding station, the third welding station, and the unloading station.

[0049] Please refer to FIG. 2 , FIG. 3 and FIG. 4 . The positioning device 100 in the preferred embodiment of the present invention includes a female base 110 , a first fixture 120 and a second fixture 130 .

[0050] The mother base 110 plays a supporting role, and the first fixture 120 and the second fixture 130 can be installed on the mother base 110. Among them, the positioning device 100 is installed on the circulation device 200 through the mother base 110. The mother base 110 can be slidably installed with the circulation device 200 through components such as sliders and guide rails.

[0051] In this embodiment, a clamping member 113 is provided at one end of the female base 110 and a connecting member 114 is provided at the other end. The connecting member 114 of each positioning device 100 can be clamped or separated from the clamping member 113 of the adjacent positioning device 100.

[0052] The coupling members 113 and the bridge members 114 of two adjacent positioning devices 100 cooperate with each other, enabling multiple positioning devices 100 to be connected end-to-end. This allows the circulation device 200 to drive multiple positioning devices 100 along the conveyor route by simply driving one or some of the positioning devices 100 to simultaneously drive the other positioning devices 100. This significantly reduces the number of driving components in the circulation device 200, simplifying the structure and reducing costs.

[0053] Furthermore, in this embodiment, the clamping member 113 includes two oppositely arranged claws 1131, the ends of the two claws 1131 are bent inward and surrounded to form a clamping portion (not marked in the figure), and the lap joint 114 includes a roller 1141, which can be clamped into the clamping portion in the up and down directions to clamp the lap joint 114 and the clamping member 113, and can be disengaged from the clamping portion in the reverse direction to separate the lap joint 114 from the clamping member 113.

[0054] Specifically, the claws 1131 are bent into an L-shape, and a clamping portion is formed between the two L-shaped claws 1131. When the roller 1141 is placed between the two L-shaped claws 1131 from top to bottom, the bent end of the claws 1131 can block the roller 1141, so that the lap joint 114 can be hooked and the two positioning devices 100 are connected. Moreover, the roller 1141 and the claws 1131 can be rolled together and are not easily stuck. When it is necessary to separate the two positioning devices 100, one of the positioning devices 100 is lifted to disengage the roller 1141 from the clamping portion from bottom to top, making it easier to hook and unhook the lap joint 114.

[0055] Taking Figure 1 as an example, when a positioning device 100 on the upper conveyor line 210 needs to be transferred to the lower conveyor line 220, the lifting mechanism 230 first lifts the positioning device 100 to disengage its connecting member 114 from the connecting member 113 of the adjacent positioning device 100, thereby separating the positioning device 100 from the adjacent positioning device 100. Next, the lifting mechanism 230 places the positioning device 100 on the lower conveyor line 220 and engages its roller 1141 with the retaining portion of the adjacent positioning device 100, thereby connecting the positioning device 100 to the positioning device 100 on the lower conveyor line 220. When a positioning device 100 on the lower conveyor line 220 needs to be transferred to the upper conveyor line 210, the process is roughly the same. It can be seen that during the transfer process, the positioning device 100 only needs to be lifted and lowered by the lifting mechanism 230, and no additional operation is required to unhook and hook the connecting piece 114 and the clamping piece 113, so the operation is more convenient and helps to improve processing efficiency.

[0056] More specifically, in this embodiment, the female base 110 includes a base plate 111 and a frame 112 fixed to the surface of the base plate 111. The base plate 111 is generally rectangular, with a bridge piece 114 and a clamping piece 113 respectively disposed at the two ends of the base plate 111 in the longitudinal direction; the first fixture 120 and the second fixture 130 can be mounted on the frame 112.

[0057] The first fixture 120 can accommodate and position the first workpiece, and the second fixture 130 can accommodate and position the second workpiece. Specifically, in this embodiment, the first workpiece refers to the battery cell, and the second workpiece refers to the adapter plate and the top cover plate. Furthermore, in this embodiment, the first fixture 120 includes a positioning base 121 and a clamping mechanism 122. The positioning base 121 can support the first workpiece, and the clamping mechanism 122 can press the first workpiece against the positioning base 121.

[0058] The first workpiece is the battery cell. The battery cell loaded into the first jig 120 is typically relatively loose. The clamping mechanism 122 maintains the cell in a compressed state, preventing deformation. The positioning base 121 is typically formed from a metal material with high mechanical strength and resistance to deformation. Specifically, it may be a block-shaped structure with a receiving cavity. The clamping mechanism 122 may include a cylinder and a pressure plate. Driven by the cylinder, the pressure plate compresses the battery cell within the positioning base 121.

[0059] Only one first jig 120 may be provided on the mother base 110, or multiple first jigs 120 may be provided. In the case where multiple first jigs 120 are provided on the mother base 110, the second jig 130 is provided corresponding to the first jig 120, and the first workpiece and the second workpiece to be welded are positioned in the corresponding first jig 120 and the second jig 130, respectively. The subsequent descriptions of the relative positions and connection relationships between the first jig 120 and the second jig 130 are all made for the corresponding first jig 120 and the second jig 130. Each first jig 120 may be configured with only one second jig 130, or may be configured with multiple second jigs 130. Taking Figure 2 as an example, two first jigs 120 are provided on the mother base 110, so two first workpieces, i.e., battery cells, can be positioned at the same time; and each first jig 120 is correspondingly configured with two second jigs 130, which are used to accommodate the adapter sheet and the top cover sheet, respectively.

[0060] It should be noted that, in other embodiments, the positioning device 100 can also be applied to welding of more than two workpieces. In this case, the number of second jigs 130 corresponding to each first jig 120 can also be adjusted according to the number of second workpieces to be welded.

[0061] The relative position of the second fixture 130 and the first fixture 120 is not fixed, but is variable. Further, the second fixture 130 includes a welding position and a avoiding position, and is operable to switch between the welding position and the avoiding position.

[0062] As shown in Figures 2-4, the relative positions of the second jig 130 and the first jig 120 are pre-positioned. When the second jig 130 is in the welding position, the second workpiece in the second jig 130 is aligned with the first workpiece in the first jig 120. That is, the second workpiece in the second jig 130 and the first workpiece in the first jig 120 are precisely positioned 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 plates and top cover plates in the two second jigs 130 are precisely positioned for welding with the battery cells.

[0063] As shown in Figures 5 to 7, when the second jig 130 is in the avoidance position, it can create a clearing position for the first workpiece in the first jig 120, preventing the second jig 130 from interfering with the processing of the first workpiece. During battery processing, the battery cells, adapters, and top cover sheets to be welded can first be loaded into the first jig 120 and the two second jigs 130 at the loading station. Before the flow device 200 drives the positioning device 100 through the first welding station, the two second jigs 130 are first switched from the welding position to the avoidance position. This creates a clearing position for the battery cells in the first jig 120, preventing the second jig 130 from interfering with the cutting and pre-welding of the battery tabs, thereby allowing for smooth pre-welding of the tabs. After the pre-welding of the tabs is completed, the two second jigs 130 are switched from the avoidance position to the welding position. At this point, the battery cells, adapters, and top cover sheets are positioned relative to each other. Therefore, when the circulation device 200 drives the positioning device 100 to pass through the second welding station and the third welding station, the adapter plate and the top cover plate can be welded to the positive tab and the negative tab of the battery cell respectively.

[0064] As can be seen, during the battery processing process, the battery cell, adapter plate, and top cover plate are all positioned in their corresponding jigs without the need for jig replacement, resulting in a high degree of positioning consistency, which helps improve welding stability. Furthermore, because the battery cell is always positioned in the first jig 120, it does not need to be transferred multiple times, thus avoiding damage to the battery cell caused by frequent clamping and positioning, which in turn helps improve the yield rate of battery processing.

[0065] Specifically, in this embodiment, a buffering area is formed on the frame 112, and the second jig 130, which is located in the avoidance position, is installed in the buffering area. The buffering area is generally located near the bottom plate 111 of the frame 112, below the first jig 120. The buffering area provides installation space for the second jig 130 in the avoidance position, thereby preventing the second jig 130 from interfering with other components during the synchronous movement of the mother base 110 and the first jig 120.

[0066] Referring again to Figures 2, 4, 5, and 7, in this embodiment, the female base 110 is provided with a buffer mounting structure 115, the first fixture 120 is provided with a first positioning mounting structure 123, and the second fixture 130 is provided with a second positioning mounting structure (not shown). The second positioning mounting structure can be detachably connected to either the first positioning mounting structure 123 or the buffer mounting structure 115 to secure the second fixture 130 in a welding position or a avoidance position.

[0067] Specifically, the first positioning mounting structure 123, the second positioning mounting structure and the cache mounting structure 115 can be in the form of pins and buckles, and can be positioned and mounted with each other. When the second fixture 130 is switched from the welding position to the avoidance position, the second positioning mounting structure is first disengaged from the first positioning mounting structure 123, and then the second positioning mounting structure is engaged with the cache mounting structure 115. When the second fixture 130 is switched from the avoidance position to the welding position, the second positioning mounting structure is first disengaged from the cache mounting structure 115, and then the second positioning mounting structure is engaged with the first positioning mounting structure 123. When the second positioning mounting structure is installed with the first positioning mounting structure 123 and the cache mounting structure 115, the second fixture 130 can be prevented from loosening, thereby ensuring the positioning accuracy of the second fixture 130.

[0068] Please refer to Figure 1 again. In this embodiment, a first operating mechanism 300 is provided between the loading station and the first welding station. The first operating mechanism 300 can switch the second fixture 130 from the welding position to the avoidance position; a second operating mechanism 400 is provided between the first welding station and the second welding station. The second operating mechanism 400 can switch the second fixture 130 from the avoidance position to the welding position.

[0069] The first operating mechanism 300 and the second operating mechanism 400 can have the same structure and can both employ robotic 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 fixture 130, thereby enhancing the automation level of the battery processing equipment 10.

[0070] Furthermore, in this embodiment, the first jig 120 is detachably mounted on the mother base 110. Therefore, when unloading welded cells, the first jig 120 can be removed from the mother base 110 and unloaded together with the cells within it. This allows the cells to remain positioned and compressed within the first jig 120, preventing the tabs from tearing, thereby further improving the yield of battery processing.

[0071] Furthermore, in this embodiment, a jig reflow station is provided after the unloading station. In the jig reflow station, vacant first jigs 120 on other equipment can be placed and mounted on the mother seat 110 to compensate for the loss of first jigs 120 caused by unloading the entire battery cell, thereby ensuring that the first jigs 120 are always present on the positioning device 100 that returns to the loading station.

[0072] Obviously, in other embodiments, the first jig 120 can also be fixed to the mother base 110, and when unloading the battery cells, the battery cells can be removed from the first jig 120. In addition, the first jig 120 can also be transferred with the battery cells and can be installed on the mother base 110 at the loading station.

[0073] With the positioning device 100 and battery processing equipment 10, the battery cells, adapter plates, and top cover plates to be welded can be loaded at the loading station. Before passing through the first welding station, the second jig 130 is switched to a pre-avoidance position to prevent the second jig 130 from interfering with the cutting and pre-welding of the battery cell tabs within the first jig 120. This allows for smooth pre-welding of the tabs at the first welding station. After pre-welding of the tabs is complete, the second jig 130 is switched to the welding position, positioning the adapter plates and top cover plates relative to the battery cells. This allows the adapter plates and top cover plates to be welded to the battery cells during the second welding station. As can be seen, the battery cells remain positioned within the first jig 120 throughout the processing process, eliminating the need for multiple transfers and preventing damage to the cells caused by frequent clamping and positioning. Therefore, the positioning device 100 and battery processing equipment 10 can improve the yield rate of battery processing.

[0074] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0075] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A positioning device for positioning a first workpiece and a second workpiece to be welded, characterized in that: The positioning device (100) comprises: Mother seat (110); A first jig (120) is mounted on the female seat (110) and is capable of accommodating and positioning the first workpiece; and A second fixture (130) is capable of accommodating and positioning a second workpiece, wherein the second fixture (130) comprises a welding position and an avoidance position, and is operable to switch between the welding position and the avoidance position; The second workpiece in the second jig (130) located at the welding position is positioned with respect to the first workpiece in the first jig (120), and the second jig (130) located at the avoidance position forms an avoidance position for the first workpiece in the first jig (120).

2. The positioning device according to claim 1, characterized in that: The female seat (110) comprises a base plate (111) and a frame (112) fixed to the surface of the base plate, the first fixture (120) is installed on the frame (112), a cache position is formed on the frame (112), and the second fixture (130) located at the avoidance position is installed in the cache position.

3. The positioning device according to claim 1, characterized in that: One end of the female seat (110) is provided with a clamping piece (113), and the other end is provided with a bridging piece (114), and the bridging piece (114) of each positioning device (100) can be clamped or separated from the clamping piece (113) of the adjacent positioning device.

4. The positioning device according to claim 3, characterized in that: The clamping member (113) comprises two clamping claws (1131) arranged opposite to each other, the ends of the two clamping claws (1131) are bent inwards and surrounded to form a clamping portion, and the bridging member (114) comprises a roller (1141), the roller (1141) can be clamped into the clamping portion from top to bottom so that the bridging member (114) and the clamping member (113) are clamped, and can be disengaged from the clamping portion from bottom to top so that the bridging member (114) and the clamping member (113) are separated.

5. The positioning device according to claim 1, characterized in that: The female seat (110) is provided with a cache mounting structure (115), the first fixture (120) is provided with a first positioning mounting structure (123), and the second fixture (130) is provided with a second positioning mounting structure, and the second positioning mounting structure can be detachably connected to any one of the first positioning mounting structure (123) and the cache mounting structure (115) to fix the second fixture (130) at the welding position or the avoidance position.

6. The positioning device according to claim 1, characterized in that: The first fixture (120) is detachably mounted on the female seat (110).

7. The positioning device according to claim 1, characterized in that: The first fixture (120) comprises a positioning base (121) and a clamping mechanism (122); the positioning base (121) is capable of carrying a first workpiece, and the clamping mechanism (122) is capable of pressing the first workpiece onto the positioning base (121).

8. The positioning device according to any one of claims 1 to 7, characterized in that: Two first jigs (120) are installed on the female seat (110), and each first jig (120) is correspondingly configured with two second jigs (130).

9. A battery processing device, characterized in that: include: A circulation device (200), wherein a loading station, a first welding station, a second welding station and a third welding station are sequentially arranged on a conveying route of the circulation device (200); and The positioning device (100) as described in any one of claims 1 to 8 is installed on the circulation device (200), and can pass through the loading station, the first welding station, the second welding station and the third welding station under the drive of the circulation device (200); The first fixture (120) is used to accommodate the battery cell, and two second fixtures (130) are provided, and the two second fixtures (130) are used to accommodate the adapter sheet and the top cover sheet, respectively.

10. The battery processing equipment according to claim 9, characterized in that: A first operating mechanism (300) is provided between the loading station and the first welding station, and the first operating mechanism (300) is capable of switching the second fixture (130) from the welding position to the avoidance position; 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 fixture from the avoidance position to the welding position.

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