Transfer tray and battery production line

Abstract

The utility model belongs to the technical field of batteries, and discloses a transfer tray and a battery production line. The transfer tray comprises a base, a plurality of limiting grooves are formed in the base, the groove bottom end faces of at least part of the limiting grooves are located in different horizontal planes, the sizes of the limiting grooves with the groove bottom end faces located in the different horizontal planes are different, and the multiple limiting grooves different in size are used for being matched with to-be-transferred objects of different sizes. The limiting grooves of the same size are used for being matched with to-be-rotated objects of the same size. Each limiting groove in at least part of the limiting grooves is communicated with at least two tab grooves, and the two tab grooves are used for placing a positive tab and a negative tab of a to-be-transferred object. The transferring tray is simple in structure, high in applicability, capable of being suitable for transferring objects of different shapes, capable of avoiding collision in the object transferring process, especially suitable for transferring pole pieces, pole groups, battery cells or batteries and the like, capable of transferring multiple objects of the same size or multiple objects of different sizes at a time and capable of improving the object transferring efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to a transfer tray and a battery production line. Background Art

[0002] In the current industry, the battery production line involves the transportation of products such as pole pieces, pole groups, battery cells and batteries. The products are easily scratched during the transportation process, causing metal burrs, which affects the performance of the product. The pole pieces are easily misaligned during the transportation of battery cells, resulting in poor alignment of the pole pieces, and ultimately causing a large number of battery cells to be scrapped.

[0003] Square grooves are generally opened on the transfer pallet to place products. However, since products such as electrodes, electrode groups, battery cells or batteries have positive and negative electrode tabs, these products do not have regular square structures. Placing such products in the square grooves of the transfer pallet will not fix the products firmly, which can easily cause damage to the products. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a transfer pallet and a battery production line.

[0005] In a first aspect of the utility model, a transfer tray is provided, comprising: a base, a plurality of limiting grooves are provided on the base, at least some of the limiting grooves have groove bottom end surfaces located at different horizontal planes, and the limiting grooves whose groove bottom end surfaces are located at different horizontal planes have different sizes, the plurality of limiting grooves of different sizes are used to adapt to objects to be transferred of different sizes, and the limiting grooves of the same size are used to adapt to objects to be transferred of the same size;

[0006] At least some of the limiting grooves are connected to at least two pole tab grooves, wherein the two pole tab grooves are used to place the positive pole tab and the negative pole tab of the object to be transferred.

[0007] The transfer pallet provided by the utility model has a simple structure and high applicability. It can be used to transfer articles of different shapes and avoid bumps during the transfer process of articles. It is particularly suitable for the transfer of electrodes, electrode groups, battery cells or batteries, and can transfer multiple articles of the same size or multiple articles of different sizes at one time, thereby improving the transfer efficiency of articles.

[0008] In addition, a transfer pallet of the utility model may also have the following additional technical features:

[0009] Preferably, each of the limiting grooves is connected to two pole lug grooves, and the two pole lug grooves are arranged on the same side or on two opposite sides of the limiting groove.

[0010] Preferably, of the two tab slots located on the same side of the limiting slot, one of the tab slots is provided with a positive electrode mark, and the other tab slot is provided with a negative electrode mark;

[0011] The two tab slots are located on opposite sides of the limiting slot, one of which is provided with a positive pole mark, and the other of which is provided with a negative pole mark.

[0012] Preferably, each of the limiting grooves is connected to three pole lug grooves, wherein two of the pole lug grooves are arranged on the same side of the limiting groove, and the two pole lug grooves on the same side and another pole lug groove are arranged on two opposite sides of the limiting groove.

[0013] Preferably, among the three tab slots, two tab slots are arranged on the same side of the limiting slot, one tab slot is provided with a positive pole mark, and the other tab slot is provided with a negative pole mark; one tab slot arranged on the opposite side of the limiting slot is provided with a positive pole mark or a negative pole mark.

[0014] Preferably, the size of the limiting grooves whose bottom end surfaces are located at different horizontal planes gradually increases from one end close to the bottom of the base to one end far from the bottom of the base, so that the plurality of limiting grooves form a stepped groove.

[0015] Preferably, there are a plurality of stepped grooves, and the plurality of stepped grooves are distributed on the base along a first direction and / or a second direction, wherein the first direction intersects with the second direction and are located in the same horizontal plane.

[0016] Preferably, the limiting groove is a square groove, and an avoidance groove is arranged at the bending part of the square groove.

[0017] Preferably, the base is provided with an escape position extending from at least one side of each of the limiting grooves to facilitate placement of the objects to be transferred; the escape position is opened along the top and bottom of the base, and the escape position passes through the top of the base.

[0018] Preferably, a support groove is provided on the end surface of one side away from the bottom, the bottom end surface of the support groove and the bottom end surface of the limiting groove are located in different horizontal planes, and the support groove covers the area where the multiple limiting grooves are located.

[0019] Preferably, the side walls of the base are provided with corresponding positioning grooves and positioning protrusions on opposite sides of the top and bottom of the base, and the positioning protrusion of one of any two transfer trays is plug-fitted and connected with the positioning protrusion of the other transfer tray.

[0020] A second aspect of the present invention provides a battery production line, comprising the transfer pallet provided in any embodiment of the present application.

[0021] The battery production line provided by the utility model has a simple structure and high applicability. It can be used for the transportation of objects of different shapes and avoid bumps during the transportation of objects. It is particularly suitable for the transportation of pole pieces, pole groups, battery cells or batteries, and can transport multiple objects at one time, thereby improving the transportation efficiency of objects.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] Figure 1 A schematic diagram of the front three-dimensional structure of a transfer pallet provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the back three-dimensional structure of a transfer pallet provided in an embodiment of the present application;

[0026] Figure 3 A top view of the transfer pallet provided in an embodiment of the present application.

[0027] In the above figure: 100 base; 110 limiting groove; 111 pole ear groove; 112 avoidance groove; 113 avoidance position; 120 support groove; 130 positioning groove; 140 positioning protrusion. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] The terms used in this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.

[0031] Unless the context requires otherwise, throughout the specification and claims, the term "comprising" is to be construed in an open, inclusive sense, ie, meaning "including, but not limited to."

[0032] In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" are intended to indicate that a specific feature, structure, material or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0033] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0034] The technical terms in this application are defined as follows:

[0035] Pole sheet: It is the electrode material in the battery that carries metal ions such as lithium ions. It is a thin sheet formed by coating the positive or negative active material on copper foil or aluminum foil. Depending on the type of electrode material, the pole sheet can be divided into positive electrode sheet and negative electrode sheet.

[0036] Electrode group: It is the main component inside the battery cell, which is wound or stacked by the positive electrode sheet, negative electrode sheet and separator, and is used to store positive and negative charges respectively and control charge transfer.

[0037] Battery cell: It is the most basic component of the battery, consisting of an electrode group and an electrolyte. It is usually an electrochemical device encapsulated in a metal shell. It is a unit for storing and releasing electrical energy, converting chemical energy into electrical energy through chemical reactions.

[0038] Battery: It is an energy storage device assembled from multiple cells. Common battery types include lithium-ion batteries, nickel-metal hydride batteries, lead-acid batteries, etc. The battery can be a soft-pack battery or a soft-pack lithium-ion battery. The soft-pack battery is a battery that has been sorted and can be shipped.

[0039] like Figure 1-3The schematic diagram of the exemplary structure of the transfer pallet provided by the embodiment of the present application is shown. A transfer pallet provided by the embodiment of the present application comprises: a base 100, a plurality of limiting grooves 110 are provided on the base 100, at least some of the limiting grooves 110 have groove bottom end surfaces located at different horizontal planes, and the limiting grooves 110 with groove bottom end surfaces located at different horizontal planes have different sizes, the plurality of limiting grooves 110 with different sizes are used to adapt to objects to be transferred of different sizes, and the limiting grooves 110 with the same size are used to adapt to objects to be transferred of the same size;

[0040] At least some of the limiting grooves 110 are connected to each limiting groove 110 with at least two pole tab grooves 111, wherein the two pole tab grooves 111 are used to place the positive pole tab and the negative pole tab of the object to be transferred.

[0041] Specifically, a downwardly recessed limiting groove 110 is provided on the base 100, and the limiting groove 110 can be used to place the objects to be transferred, so that when the transfer pallet transfers the objects to be transferred, the objects to be transferred can be firmly fixed, and the objects to be transferred can be prevented from being bumped during the transfer process, thereby improving the yield of the objects to be transferred and saving costs; and a plurality of limiting grooves 110 are provided on the base 100, so that the transfer pallet can transfer multiple objects to be transferred at one time, thereby improving the transfer efficiency of the objects to be transferred.

[0042] Among the multiple limiting grooves 110, some limiting grooves 110 are located in the same horizontal plane, and the remaining limiting grooves 110 are located in different horizontal planes, wherein the sizes of the multiple limiting grooves 110 whose bottom end faces are located in the same horizontal plane can be the same or / and different, preferably the same. Among them, the multiple limiting grooves 110 whose bottom end faces are located in the same horizontal plane can be arranged along the first direction and / or the second direction, wherein the first direction and the second direction intersect and are located in the same horizontal plane. Exemplarily, the base 100 is a rectangular parallelepiped structure, and the first direction and the second direction are respectively the length direction (such as the x direction in the three-dimensional coordinate system) and the width direction (the y direction in the three-dimensional coordinate system) of the base 100. Those skilled in the art can set the number of limiting grooves 110 according to actual needs, such as the number of limiting grooves 110 is 2, 3, 4, 5, 6, 8, etc.

[0043] The sizes of the multiple limiting grooves 110 whose bottom end faces are located at different horizontal planes can be the same or / and different, preferably different. Limiting grooves 110 of different sizes can be adapted to objects to be transferred of different sizes, and limiting grooves 110 of the same size can be adapted to objects to be transferred of the same size. Therefore, the transfer pallet provided in the embodiment of the present application can transfer multiple objects to be transferred of the same size or multiple different sizes at one time, thereby improving the transfer efficiency of the objects to be transferred and improving the processing efficiency of the objects to be transferred.

[0044] Among the plurality of limiting grooves 110, some limiting grooves 110 are square grooves, which are suitable for objects to be transferred with regular shapes; among the remaining limiting grooves 110, each limiting groove 110 has a connected pole ear groove 111. When the object to be transferred is a pole piece, a pole group, a battery cell or a battery, the positive pole ear and the negative pole ear of the object to be transferred can be placed in the two pole ear grooves 111 corresponding to the limiting groove 110, which is convenient for fixing the object to be transferred. Among them, those skilled in the art can set the number of connected pole ear grooves 111 on the same limiting groove 110 according to actual needs. For example, the number of pole ear grooves 111 is 2, 3, 4, etc.

[0045] It should be noted that the embodiments of the present application do not specifically limit the specific types of items to be transferred, and those skilled in the art can set them according to actual needs. For example, the items to be transferred include pole pieces (including positive pole pieces and negative pole pieces), pole groups, battery cells or batteries, etc. When using a transfer tray to transfer pole pieces or pole groups, it is possible to avoid collisions between pole pieces and pole groups, which may cause material drop and generate metal burrs, thereby preventing the burrs from passing through the diaphragm and causing a short circuit, and avoiding the misalignment of pole pieces in batteries or pole groups, thereby improving the yield of pole groups and batteries, etc., and saving tooling and labor costs.

[0046] The transfer pallet provided in the embodiment of the present application has a simple structure and high applicability. It can be used to transfer items of different shapes and avoid bumps during the transfer process. It is particularly suitable for the transfer of electrodes, electrode groups, battery cells or batteries, and can transfer multiple items of the same size or multiple items of different sizes at one time, thereby improving the transfer efficiency of items.

[0047] It should be noted that the objects to be transferred of the same size refer to the objects to be transferred with the same length and width. The objects to be transferred of the same size may be the same or different objects, such as the objects to be transferred of the same size are pole pieces and pole groups; the objects to be transferred of different sizes refer to the objects to be transferred with different lengths and widths. The objects to be transferred of different sizes may be the same or different objects, such as the objects to be transferred of different sizes are batteries and pole groups, or batteries of different sizes.

[0048] Among them, for batteries of the same model, the size of the corresponding pole piece and pole group is the same, and the corresponding pole piece and pole group can be used to be placed in the same size of the limiting groove 110, and the technicians in this field can place the pole piece or pole group in the limiting groove 110 of the size according to actual needs. And for batteries of the same model, the size of the battery is generally larger than the size of the corresponding pole piece and pole group of the battery, therefore, it is preferred to place the battery in a large size limiting groove 110, and the pole piece and pole group in a small size limiting groove 110.

[0049] The transfer pallet provided in the embodiment of the present application has a simple structure and high applicability. It can open a limiting groove 110 of a corresponding size according to the actual size of the object to be transferred. It has strong compatibility with the objects to be transferred. A pair of transfer pallets can adapt to multiple objects to be transferred of different sizes (such as 2-3 sizes). The objects to be transferred are firmly fixed to prevent bumps during the transfer process, thereby improving the yield of the objects to be transferred and saving costs. When fixing objects to be transferred of different sizes, there is no need to switch the transfer pallet. The objects to be transferred of the corresponding size can be placed in the limiting groove 110 of the corresponding size to fix the objects to be transferred of the corresponding size. The operation is simple, the tooling time is short, the transfer efficiency is high, and the fixing device is small in size and light in weight, which is convenient for manual handling.

[0050] In some embodiments, Figures 1 to 3 As shown, each of the limiting grooves 110 is connected to two pole tab grooves 111 , and the two pole tab grooves 111 are arranged on the same side or on two opposite sides of the limiting groove 110 .

[0051] Specifically, when the number of the tab slots 111 is 2, Figures 1 to 3 As shown, the two pole lug grooves 111 can be arranged on the same side of the limiting groove 110 to adapt to a certain type of battery, the two pole lugs of which are located on the same side, that is, a single-sided pole lug battery; or, the two pole lug grooves 111 are arranged on opposite sides of the limiting groove 110 to adapt to another type of battery, the two pole lugs of which are located on opposite sides, that is, a double-sided pole lug battery.

[0052] In some embodiments, Figures 1 to 3 As shown, one of the two tab slots 111 located on the same side of the limiting slot 110 is provided with a positive electrode mark, and the other tab slot 111 is provided with a negative electrode mark;

[0053] A positive electrode mark is set on one of the two tab grooves 111 located on opposite sides of the limiting groove 110 , and a negative electrode mark is set on the other tab groove 111 .

[0054] Specifically, setting the positive electrode mark and the negative electrode mark inside or outside the pole ear slot 111 can prevent the pole piece, pole group, battery cell and battery from being misplaced when the object is placed, so as to avoid the user from making mistakes during use. Among them, the technicians in this field can set the positive electrode mark and the negative electrode mark according to actual needs, such as the positive electrode mark can be "+", and the negative electrode mark can be "-"; the positive electrode mark and the negative electrode mark can also be marked with different colors, such as the positive electrode mark is red, and the negative electrode mark is green, etc.

[0055] In some embodiments, each of the limiting grooves 110 is connected to three pole lug grooves 111 , wherein two of the pole lug grooves 111 are arranged on the same side of the limiting groove 110 , and the two pole lug grooves 111 on the same side and another pole lug groove 111 are arranged on opposite sides of the limiting groove 110 .

[0056] Specifically, when the number of the pole lug slots 111 is 3, the three pole lug slots 111 are respectively the first pole lug slot, the second pole lug slot and the third pole lug slot, wherein the first pole lug slot and the second pole lug slot are located on the same side of the limiting slot 110, and the third pole lug slot is located on the other side of the limiting slot 110. The limiting slot 110 can hold two different types of batteries (single-sided pole lug batteries and double-sided pole lug batteries), further improving the applicability of the transfer pallet.

[0057] Among them, the third limiting groove is symmetrically arranged on both sides of the limiting groove or staggered with the first limiting groove or the second limiting groove to meet the transportation requirements of double-sided tab batteries of different models.

[0058] In some embodiments, among the three pole lug slots 111, two of the pole lug slots 111 disposed on the same side of the limiting slot 110, one of the pole lug slots 111 is provided with a positive pole mark, and the other pole lug slot 111 is provided with a negative pole mark; one of the pole lug slots 111 disposed on the opposite side of the limiting slot 110 is provided with a positive pole mark or a negative pole mark.

[0059] Specifically, one of the first and second tab slots is provided with a positive electrode mark, and the other is provided with a negative electrode mark, such as the first tab slot is provided with a positive electrode mark, and the second tab slot is provided with a negative electrode mark, so as to adapt to a battery with a single-sided tab. The third tab slot can be provided with a positive electrode mark or a negative electrode mark. When the third tab slot has a positive electrode mark, it can be matched with the second tab slot with a negative electrode mark to adapt to a battery with double-sided tabs; when the third tab slot has a negative electrode mark, it can be matched with the first tab slot with a positive electrode mark to adapt to a battery with double-sided tabs.

[0060] In some embodiments, Figure 1 and Figure 2 As shown, the size of the limiting grooves 110 whose bottom end faces are located at different horizontal planes gradually increases from one end close to the bottom of the base 100 to the end far from the bottom of the base 100, so that the multiple limiting grooves 110 form a stepped groove.

[0061] Specifically, when the bottom end surfaces of at least some of the plurality of limiting grooves 110 are located at different horizontal planes of the base 100, the size of the limiting groove 110 close to the bottom of the base 100 is smaller than the size of the limiting groove 110 away from the bottom of the base 100, and the plurality of limiting grooves 110 located at different horizontal planes are connected. For example, Figure 1 As shown, the bottom end surface of the base 100 is located at different horizontal planes to open two sizes of limit grooves 110, and the two sizes of limit grooves 110 form a stepped structure as a whole. Among them, the limit grooves 110 located in the upper layer can be used to place batteries, battery cells, pole groups, etc., and the limit grooves 110 located in the lower layer can be used to place pole pieces, pole groups, battery cells, etc. This example is an exemplary description of the stepped groove formed by two limit grooves 110. In actual applications, three, four, or other number of limit grooves 110 can also be used to form a stepped groove.

[0062] It is understandable that the depth of the limiting groove 110 located in the lower layer is greater than or equal to the thickness of the pole piece, pole group, and battery cell, so that one or more pole pieces, one or more pole groups, or one or more battery cells can be placed in the lower limiting groove 110 at one time; wherein, the pole ears of the pole piece, pole group, and battery cell can be placed in the lower limiting groove 110, or they can be bent and carried in the upper limiting groove 110. Of course, those skilled in the art can also set the depth of the lower limiting groove 110 to be less than the thickness of the pole piece or pole group according to actual needs. When the pole piece or pole group is placed in the lower limiting groove 110, the upper end surface of the pole piece or pole group will extend out of the lower limiting groove 110. The setting of the upper limiting groove connected to the lower limiting groove 110 can ensure that the upper end surface of the pole piece or pole group will not extend out of the upper surface of the transfer tray, and the upper end surface of the pole piece or pole group is preset with the upper surface of the transfer tray to avoid the transfer tray directly pressing on the surface of the pole piece or pole group and causing damage when the transfer tray is stacked.

[0063] The upper limiting groove 110 can be used to place batteries, battery cells or electrode groups. For example, the upper limiting groove 110 is used to place batteries. The depth of the upper limiting groove 110 is greater than or equal to the thickness of the battery, so that the battery is fixed by the limiting groove 110 and is always located in the limiting groove 110, avoiding the transfer tray from directly pressing on the surface of the battery and causing damage to the battery when the transfer tray is stacked.

[0064] It should be noted that when a plurality of limiting grooves 110 form a stepped groove, for example, at least two tab grooves 111 are provided on the limiting groove 110 located on the upper layer of the base 100, and / or at least two tab grooves 111 are provided on the limiting groove 110 located on the bottom end surface of the base 100, wherein one tab groove 111 is used to place the positive tab of the object to be transferred, and the other tab groove 111 is used to place the negative tab of the object to be transferred. Therefore, those skilled in the art can select the location of the tab groove 111 according to actual needs, and all the limiting grooves 110 can be provided with the tab groove 111, or only some of the limiting grooves 110 can be provided with the tab groove 111.

[0065] In some embodiments, Figures 1 to 3As shown, there are a plurality of stepped grooves, and the plurality of stepped grooves are distributed on the base 100 along a first direction and / or a second direction, wherein the first direction intersects with the second direction and are located in the same horizontal plane.

[0066] Specifically, those skilled in the art can set the number of step grooves according to the actual number of step grooves, for example, the number of step grooves is 2, 3, 4, 5, 6, etc. A plurality of step grooves are distributed on the base 100 along the first direction or / and the second direction, and those skilled in the art can set the arrangement position of the step grooves according to actual needs.

[0067] It should be noted that when the limiting groove 110 in the step groove is connected to the pole lug groove 111, the pole lug groove 111 can be oriented toward the same side of multiple step grooves or toward two opposite sides of multiple step grooves. Technicians in this field can set the arrangement position of the pole lug groove 111 according to actual conditions.

[0068] In some embodiments, Figures 1 to 3 As shown, the limiting groove 110 is a square groove, and an avoidance groove 112 is arranged at the bending part of the square groove.

[0069] Specifically, the size of each limiting groove 110 is the same as the size of the corresponding object to be transferred. When the object to be transferred is a pole piece, a pole group, a battery cell or a battery, the limiting groove 110 can be a square groove of corresponding size, and the square groove is respectively provided with an avoidance groove 112 at the bending part (i.e., the four corners). The avoidance groove 112 can be an arc groove, such as a 1 / 4 arc groove, a 3 / 4 arc groove, etc. The setting of the avoidance groove 112 can avoid collision damage at the four corners of the object to be transferred, thereby improving the yield of the object to be transferred.

[0070] In some embodiments, Figures 1 to 3 As shown, the base 100 is provided with an escape position 113 extending from at least one side of each of the limiting grooves 110 to facilitate placement of the objects to be transferred; the escape position 113 is opened along the top and bottom of the base 100 , and the escape position 113 passes through the top of the base 100 .

[0071] Specifically, as described above, the first direction can be the x-direction in the three-dimensional coordinate system, the second direction can be the y-direction in the three-dimensional coordinate system, and the third direction can be the z-direction in the three-dimensional coordinate system. Therefore, the third direction is perpendicular to the plane where the first direction and the second direction intersect. The base 100 is provided with an escape position 113 extending on one side or both sides of each limiting groove 110 along the first direction. The setting of the escape position 113 facilitates manual or robotic grasping and placing of objects to be transferred, and is easy to operate and implement. In this exemplary embodiment, the number of the escape positions 113 can be set according to actual needs, such as 2, 4, 6, etc. For example, as Figure 1As shown, each limiting groove 110 of the base 100 is symmetrically provided with a group of avoidance positions 113 along the x direction, and each avoidance position 113 is symmetrically provided along the third direction (such as Figure 1 The three-dimensional coordinate system is opened in the z direction, and the avoidance position 113 runs through the top of the base 100. Each avoidance position 113 extends along the first direction at least to the area covered by the minimum size limiting groove 110, so as to facilitate grabbing of objects to be transferred of corresponding sizes from both sides of the limiting groove 110.

[0072] It should be noted that the tab slot 111 and the avoidance position 113 opened on the limiting slot 110 are respectively located on two adjacent sides of the limiting slot 110, which is convenient for opening the tab slot 111 and the avoidance position 113 and for taking and placing the objects to be transferred.

[0073] In some embodiments, Figure 1 As shown, a support groove 120 is provided on the end face of one side of the base 100 away from the bottom, the bottom end face of the support groove 120 and the bottom end face of the limiting groove 110 are located in different horizontal planes, and the support groove 120 covers the area where multiple limiting grooves 110 are located.

[0074] Specifically, a support groove 120 is provided on the top end surface of the base 100. The support groove 120 and the limiting groove 110 form a stepped groove, and the size (length and width) of the support groove 120 is larger than the size of the limiting groove 110, and the support groove 120 covers all areas where the limiting grooves 110 are located. When multiple transfer pallets are stacked to transfer multiple objects to be transferred, a support gap is formed between two adjacent transfer pallets by the support groove 120. The support gap can prevent the bottom of one transfer pallet from pressing on the surface of the objects to be transferred placed in the limiting groove 110 of another transfer pallet, thereby avoiding damage to the objects to be transferred. The support gap can be filled with cushioning materials such as foam, which can improve the firmness and stability of the objects to be transferred while avoiding damage to the objects to be transferred.

[0075] In some embodiments, Figures 1 to 3 As shown, the side walls of the base 100 are provided with corresponding positioning grooves 130 and positioning protrusions 140 on opposite sides of the top and bottom of the base 100, and the positioning protrusion 140 of one transfer tray among any two transfer trays is plug-fitted and connected with the positioning protrusion 140 of the other transfer tray.

[0076] Specifically, positioning grooves 130 and positioning protrusions 140 can be respectively provided on the peripheral edge side walls of the base 100 along the top and bottom opposite sides of the base 100, wherein the side edges of the upper surface of the base 100 are recessed downward, the recess protrudes from the lower surface of the base 100 and extends to form positioning protrusions 140, and the positioning protrusions 140 can be assembled into the positioning grooves 130. When multiple transfer pallets are stacked, any two adjacent transfer pallets can be precisely plugged and connected through the positioning protrusions 140 and the positioning grooves 130 to ensure the accuracy of positioning. Among them, multiple positioning grooves 130 and multiple positioning protrusions 140 can be correspondingly provided on the peripheral edge side walls of the base 100 to ensure the firmness and stability of the stacked placement of multiple transfer pallets and improve the firmness and efficiency of the transfer of goods.

[0077] A second aspect of the present invention provides a battery production line, comprising the transfer pallet provided in any embodiment of the present application.

[0078] In the battery production line provided by the utility model, the transfer pallet provided by any embodiment of the present application has a simple structure and high applicability. It can be used to transfer objects of different shapes and avoid bumps during the transfer of objects. It is especially suitable for the transfer of electrodes, electrode groups, battery cells or batteries, etc., and multiple objects can be transferred at one time, thereby improving the transfer efficiency of objects.

[0079] It can be understood that the specific technical features and technical effects of the battery production line are consistent with the specific technical features and technical effects of the transfer pallet, and will not be repeated in the embodiments of the present application.

[0080] The battery production line provided in the embodiments of the present application may be a fully automatic or semi-automatic battery production line. When the items to be transferred are being transferred in the battery production line, the transfer pallet provided in any embodiment of the present application may be used to transfer multiple items of different shapes, thereby preventing misalignment of the electrodes of items such as electrode groups, battery cells, or battery cells during the transfer process, thereby improving the efficiency of item transfer and improving the production efficiency and quality of the battery.

[0081] In some embodiments, the battery production line further includes a robot arm, which is used to grab the objects to be transferred.

[0082] Specifically, a robot arm is used to grab the objects to be transferred, and intelligent operations for fixing the objects to be transferred are implemented, thereby improving the fixing and transfer efficiency of the objects to be transferred.

[0083] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A transfer pallet, characterized in that: include: A base (100), wherein a plurality of limiting grooves (110) are formed on the base (100), the groove bottom end surfaces of at least some of the limiting grooves (110) are located at different horizontal planes, and the limiting grooves (110) whose groove bottom end surfaces are located at different horizontal planes have different sizes, and the plurality of limiting grooves (110) of different sizes are used to fit objects to be transferred of different sizes, and the limiting grooves (110) of the same size are used to fit objects to be transferred of the same size; Each of the limiting grooves (110) in at least some of the limiting grooves (110) is connected to at least two pole lug grooves (111), wherein the two pole lug grooves (111) are used to place the positive pole lug and the negative pole lug of the object to be transferred.

2. The transfer pallet according to claim 1, characterized in that: Each of the limiting grooves (110) is connected to two pole lug grooves (111), and the two pole lug grooves (111) are arranged on the same side or on two opposite sides of the limiting groove (110).

3. The transfer pallet according to claim 2, characterized in that: Two pole lug grooves (111) located on the same side of the limiting groove (110), one of the pole lug grooves (111) is provided with a positive pole mark, and the other pole lug groove (111) is provided with a negative pole mark; The two pole tab slots (111) are located on opposite sides of the limiting slot (110), one of which is provided with a positive pole mark, and the other of which is provided with a negative pole mark.

4. The transfer pallet according to claim 1, characterized in that: Each of the limiting grooves (110) is connected to three pole lug grooves (111), wherein two of the pole lug grooves (111) are arranged on the same side of the limiting groove (110), and the two pole lug grooves (111) on the same side and another pole lug groove (111) are arranged on two opposite sides of the limiting groove (110).

5. The transfer pallet according to claim 4, characterized in that: Among the three pole lug grooves, two pole lug grooves (111) are arranged on the same side of the limiting groove (110), one pole lug groove (111) is provided with a positive pole mark, and the other pole lug groove (111) is provided with a negative pole mark; and one pole lug groove (111) is arranged on the opposite side of the limiting groove (110) and is provided with a positive pole mark or a negative pole mark.

6. The transfer pallet according to claim 1, characterized in that: The size of the limiting grooves (110) whose bottom end surfaces are located at different horizontal planes gradually increases from one end close to the bottom of the base (100) to the end far from the bottom of the base (100), so that the plurality of limiting grooves (110) form a stepped groove.

7. The transfer pallet according to claim 6, characterized in that: There are a plurality of stepped grooves, and the plurality of stepped grooves are distributed on the base along a first direction and / or a second direction, wherein the first direction intersects with the second direction and are located in the same horizontal plane.

8. The transfer pallet according to claim 1, characterized in that: The limiting groove (110) is a square groove, and an avoidance groove (112) is provided at a bending position of the square groove.

9. The transfer pallet according to claim 1, characterized in that: The base (100) is provided with an escape position (113) extending from at least one side of each of the limiting grooves (110) to facilitate placement of the object to be transferred; the escape position (113) is provided along the top and bottom of the base (100), and the escape position (113) passes through the top of the base (100).

10. A battery production line, characterized in that: Including the transfer pallet described in any one of claims 1-9.

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