Positioning tool

Abstract

The utility model relates to a positioning tool, the positioning tool is used for fixing a pole piece, the positioning tool comprises a supporting table, the supporting table is provided with two pressing plates which are oppositely arranged, at least one of the two pressing plates can move on the supporting table, the pressing plates are used for pressing the pole piece on the supporting table in an abutting mode, and the supporting table is used for supporting the pole piece on the supporting table. A locking piece is arranged on the movable pressing plate, the locking piece has an unlocking state and a locking state, when the locking piece is in the unlocking state, the pressing plate can move, and when the locking piece is in the locking state, the pressing plate is locked on the supporting table. According to the positioning tool, in the detection process, the locking piece can be adjusted so that the pole piece can move freely in the horizontal direction, and the shape and the size of burrs of the pole piece can be detected comprehensively. Therefore, the phenomena that the pole piece is easy to slide and wrinkle and the like in the traditional detection mode can be improved, and the burr detection accuracy is effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of pole piece detection, and particularly relates to a positioning tooling Background Art

[0002] With the development of technology and society, the global attention to climate change has been continuously increasing, and the demand for alternative traditional fossil fuels is growing day by day. As an emerging industry, the new energy industry has great development potential, and various countries have increased their efforts in the development of new energy

[0003] Lithium titanate batteries have great application prospects due to their advantages such as high energy density, wide temperature tolerance, high safety, fast charging, and long life

[0004] The production of lithium batteries is mainly divided into the front stage, middle stage, back stage, and matching. After the pole piece die-cutting and slitting processes in the front stage, some burrs will be generated. The burrs are extremely likely to cause short circuits in the middle-stage winding cores. Therefore, it is crucial to control the size of the burrs during the production process. However, during the process of detecting the size of die-cutting and slitting burrs, the pole piece is prone to sliding under an optical microscope, and the pole piece is prone to wrinkling, resulting in errors during the detection process. The detection results deviate greatly from the actual situation and cannot be effectively compared with the process standards Utility Model Content

[0005] This application provides a positioning tooling to solve the problem that the position of the pole piece is prone to move when detecting the burr size of the pole piece

[0006] According to the positioning tooling of this application, it is used to fix the pole piece. The positioning tooling includes:

[0007] A support table, on which two relatively arranged pressing plates are provided. At least one of the two pressing plates is movable on the support table. The pressing plate is used to press the pole piece against the support table. A locking member is provided on the movable pressing plate. The locking member has an unlocking state and a locking state. When the locking member is in the unlocking state, the pressing plate is movable. When the locking member is in the locking state, the pressing plate is locked to the support table

[0008] According to the positioning tooling of this application, a guide groove is provided on the support table, and a guide sliding member is provided on the pressing plate. The guide sliding member is movably clamped in the guide groove

[0009] Optionally, the pressing plate is set as a strip-shaped plate. Guide sliding members are respectively provided at both ends in the length direction of the pressing plate. Two opposite guide grooves are provided on the support table. The guide sliding members at the same end of the two pressing plates are clamped in the same guide groove

[0010] Optionally, the pressing plate and the locking member are threadedly connected, and the sliding guide is connected to an end of the locking member close to the support platform.

[0011] Optionally, the positioning tool further includes a base, the base is provided with a guide rod, and the support platform is movably disposed on the guide rod.

[0012] Optionally, the number of the guide rods is four, and the four corner ends of the support platform are each provided with an assembly hole, and the guide rods are inserted into the corresponding assembly holes.

[0013] Optionally, an internal thread is provided in the assembly hole, an external thread is provided on the guide rod, and the guide rod and the assembly hole are threadedly connected.

[0014] Optionally, a rotatable assembly part is clamped in the assembly hole, a threaded hole is provided in the assembly part, the threaded hole and the assembly hole are coaxial, and the guide rod is threadedly connected to the threaded hole.

[0015] According to the positioning tool of the present application, the support platform is a flat plate structure.

[0016] The positioning tool according to the present application also includes: a tensile gauge, and the pressure plate is provided with a mounting piece, one of the mounting pieces is connected to the fixed end of the tensile gauge, and the other mounting piece is connected to the stretching end of the tensile gauge.

[0017] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0018] The positioning tool provided in the embodiment of the present application has at least one movable pressing plate. When flattening the pole piece, the pole piece is first placed under the pressing plate, and at least one of the pressing plates is slowly moved horizontally to change the pole piece from a wrinkled, folded pole ear state to a straightened state. In the process of moving the pressing plate, the locking member is in an unlocked state so that the pressing plate can move. After the pressing plate is moved into place, that is, after the pole piece is observed to be straightened, the locking member is adjusted from an unlocked state to a locked state, thereby fixing the pressing plate on the support table, and then the positioning tool is placed under an optical microscope (or a two-dimensional microscope) for burr size detection. After the pole piece is in a straightened state, effective focusing is performed, wherein the locking member can lock the pressing plate after the pole piece is straightened to prevent the pressing plate from moving arbitrarily. During the detection process, the locking member can be adjusted to allow the pole piece to move arbitrarily in the horizontal direction, and the shape and size of the pole piece burrs can be detected in all aspects. In this way, the phenomenon that the pole piece is easy to slide and easy to wrinkle in the traditional detection method can be improved, and the accuracy of burr detection can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments in accordance with the present utility model, and are used together with the specification to explain the principles of the present utility model.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] One or more embodiments are exemplarily illustrated by the pictures in the corresponding accompanying drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise stated, and the drawings in the figures do not constitute a scale limitation.

[0022] Figure 1 A perspective view of a positioning tooling provided for an embodiment of the present application;

[0023] Figure 2 A side view of a positioning tooling provided for an embodiment of the present application;

[0024] Figure 3 A top view of a positioning tooling provided for an embodiment of the present application;

[0025] Figure 4 A side view of a positioning tooling provided for an embodiment of the present application.

[0026] Explanation of reference numerals in the drawings:

[0027] Positioning tooling 1, support table 10, guide groove 11, fitting 13, pressing plate 20, locking member 21, base 30, guide rod 31, tensiometer 40, mounting member 50. Detailed implementation manners

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0029] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0030] For ease of description, spatially relative relationship terms may be used in the text to describe the relative position relationship or movement of one element or feature shown in the figure relative to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "upper", "front", "rear", etc. Such spatially relative relationship terms are intended to include different orientations of the device in use or operation other than the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip or attitude change or motion state change, then these directional indications will change accordingly. For example, an element described as "below" or "beneath" other elements or features will then be oriented as "above" or "upper" other elements or features. Therefore, the exemplary term "below" can include both upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or in other directions) and the spatially relative relationship descriptors used in the text are interpreted accordingly.

[0031] As Figure 1 and Figure 2 As shown, the positioning tooling 1 according to an embodiment of the present application is used to fix the pole piece. The positioning tooling 1 includes a support table 10, and two oppositely arranged pressing plates 20 are provided on the support table 10. At least one of the two pressing plates 20 is movable on the support table 10. The pressing plate 20 is used to press the pole piece against the support table 10. A locking member 21 is provided on the movable pressing plate 20. The locking member 21 has an unlocked state and a locked state. When the locking member 21 is in the unlocked state, the pressing plate 20 is movable. When the locking member 21 is in the locked state, the pressing plate 20 is locked to the support table 10.

[0032] Specifically, the positioning tooling 1 includes a support table 10, and the pole piece is placed on the support table 10 for fixation.

[0033] At least one of the pressing plates 20 is movable. When flattening the pole piece, first place the pole piece under the pressing plate 20, and slowly move at least one of the pressing plates 20 horizontally to change the pole piece from a wrinkled or folded state to a straightened state. In the process of moving the pressing plate 20, the locking member 21 is in an unlocked state so that the pressing plate 20 can move. After the pressing plate 20 is moved into place, that is, after the pole piece is observed to be straightened, the locking member 21 is adjusted from an unlocked state to a locked state, thereby fixing the pressing plate 20 on the support table 10, and then the positioning tool 1 is placed under an optical microscope (or a two-dimensional microscope) for burr size detection. After the pole piece is in a straightened state, effective focusing is performed, wherein the locking member 21 can lock the pressing plate 20 after the pole piece is straightened to prevent the pressing plate 20 from moving arbitrarily.

[0034] At least one of the two pressing plates 20 is movable on the support platform 10, which means that one pressing plate 20 can be movable on the support platform 10, or both pressing plates 20 can be movable on the support platform 10. When one pressing plate 20 is movable, a locking member 21 is provided on the pressing plate 20, and when both pressing plates 20 are movable, both pressing plates 20 are provided with locking members 21.

[0035] In addition, during the detection process, the locking member 21 can be adjusted to allow the pole piece to move arbitrarily in the horizontal direction, so as to comprehensively detect the shape and size of the pole piece burrs and avoid the pressure plate 20 from obstructing the field of vision.

[0036] According to the positioning tool 1 of the embodiment of the present application, the phenomenon that the pole piece is easy to slide and wrinkle in the traditional detection method can be improved, and the accuracy of burr detection can be effectively improved.

[0037] like Figure 1 and Figure 3 As shown, according to the positioning tool 1 of the embodiment of the present application, a guide groove 11 is provided on the support platform 10 , and a guide slide is provided on the pressure plate 20 , and the guide slide is movably clamped in the guide groove 11 .

[0038] In detail, a guide groove 11 is provided on the support platform 10, and a guide slide is provided on the pressure plate 20. The guide slide is movably clamped in the guide groove 11. In this way, the guide slide and the guide groove 11 cooperate with each other to guide and limit the pressure plate 20, so that the movable pressure plate 20 can move along a predetermined trajectory on the support platform 10.

[0039] like Figure 1 and Figure 3 As shown, in some embodiments, the pressure plate 20 is configured as a strip plate, and guide slides are respectively provided at both ends of the length direction of the pressure plate 20. Two opposite guide grooves 11 are provided on the support platform 10, and the guide slides located at the same end of the two pressure plates 20 are clamped in the same guide groove 11.

[0040] Specifically, the pressing plate 20 is set as a strip-shaped plate. In this way, the pressing plate 20 can flatten the pole piece along its own length direction, and the movable pressing plate 20 can scrape the wrinkles of the pole piece. Guide sliding members are respectively arranged at both ends of the pressing plate 20 in the length direction. Two opposite guide grooves 11 are arranged on the support table 10. The guide sliding members at the same end of the two pressing plates 20 are clamped in the same guide groove 11, so as to guide and limit the guide sliding members at the same end of the two pressing plates 20 by using the same guide groove 11, simplify the overall structure setting, and reduce the processing difficulty.

[0041] As Figure 3 shown, in some embodiments, the pressing plate 20 and the locking member 21 are threadedly connected, and the guide sliding member is connected to one end of the locking member 21 close to the support table 10.

[0042] It can be understood that the pressing plate 20 and the locking member 21 are threadedly connected. In this way, the state of the locking member 21 can be adjusted by rotating the locking member 21. For example, by rotating the locking member 21, when the locking member 21 is loosened, the pressing plate 20 is loosened from the support table 10. When the locking member 21 is tightened, the pressing plate 20 is tightly pressed on the pole piece. The guide sliding member is connected to one end of the locking member 21 close to the support table 10. The guide sliding member is connected to one end of the locking member 21 close to the support table 10. In this way, during the rotation of the locking member 21, the distance between the bottom end of the guide sliding member and the bottom wall of the guide groove 11 will be adjusted. When the bottom end of the guide sliding member abuts against the bottom wall of the guide groove 11, the pressing plate 20 is locked. When the locking member 21 is rotated to separate the guide sliding member from the bottom wall of the guide groove 11, the locking member 21 is in the unlocked state, and the pressing plate 20 is in a state where it can move along a predetermined track. In this way, the overall structure setting can be simplified, especially the structure setting of the locking member 21 can be simplified, the use of non-standard parts can be reduced, and thus the overall processing cost of the positioning tooling 1 can be reduced.

[0043] As Figure 4 shown, in some embodiments, the positioning tooling 1 further includes a base 30. A guide rod 31 is arranged on the base 30, and the support table 10 is movably arranged on the guide rod 31.

[0044] It can be understood that the support table 10 is movably arranged on the guide rod 31. In this way, when a pole piece is fixed on the support table 10, the support table 10 can drive the pole piece to move in the vertical direction, so as to adjust the height of the pole piece to adapt to the height of the microscope, which is convenient for observation and improves the adaptability of the positioning tooling 1 to different specifications of limit mirrors. Among them, the guide rod 31 plays a role in supporting and guiding the support table 10.

[0045] In some embodiments, the number of the guide rods 31 is one; in some embodiments, the number of the guide rods 31 is two; in some embodiments, the number of the guide rods 31 is three.

[0046] AsFigure 1 and Figure 3 As shown in Figure 3 , in some embodiments, the number of guide rods 31 is four. Assembly holes are provided at the four corner ends of the support table 10, and the guide rods 31 are inserted into the corresponding assembly holes.

[0047] Specifically, the number of guide rods 31 is four. Assembly holes are provided at the four corner ends of the support table 10, and the guide rods 31 are inserted into the corresponding assembly holes. By using the cooperation of the guide rods 31 and the assembly holes, the position of the support table 10 is adjusted and regulated. Assembly holes are provided at the four corner ends. In this way, on the one hand, the four guide rods 31 can play a role in balanced support for the support table 10, and on the other hand, most areas of the support table 10 can be avoided to facilitate the fixing of the pole piece and prevent interference, thereby simplifying the overall structural setting of the positioning tooling 1.

[0048] In some embodiments, internal threads are provided in the assembly holes, external threads are provided on the guide rods 31, and the guide rods 31 are threadedly connected to the assembly holes.

[0049] Specifically, internal threads are provided in the assembly holes, external threads are provided on the guide rods 31, and the guide rods 31 are threadedly connected to the assembly holes. When the position of the support table 10 needs to be adjusted, the guide rods 31 can be rotated for adjustment, thereby changing the height of the support table 10 in the vertical direction and further changing the height of the pole piece in the vertical direction.

[0050] As Figure 3 shown, in some embodiments, a rotatable fitting 13 is clamped in the assembly hole. A threaded hole is provided in the fitting 13, and the threaded hole is coaxial with the assembly hole. The guide rod 31 is threadedly connected to the threaded hole.

[0051] Specifically, a rotatable fitting 13 is clamped in the assembly hole. A threaded hole is provided in the fitting 13, and the threaded hole is coaxial with the assembly hole. The assembly hole is a smooth hole. The guide rod 31 is threadedly connected to the threaded hole. In this way, when the height of the support table 10 in the vertical direction needs to be adjusted, by screwing and rotating the fitting 13, the position of the fitting 13 on the guide rod 31 can be changed, and then the support table 10 is driven to move along the guide rod 31 to change the position of the support table 10.

[0052] As Figure 2 and Figure 3 shown, according to the positioning tooling 1 of the embodiment of the present application, the support table 10 is a flat plate-like structure.

[0053] Specifically, the support table 10 is a flat plate-like structure, which can support the pole piece while reducing the overall weight, simplifying the structural setting, and facilitating the reduction of the overall structural cost of the positioning tooling 1.

[0054] As Figures 1-3As shown, the positioning tooling 1 according to the embodiment of the present application further includes a tensiometer 40. Mounting members 50 are provided on the pressing plates 20. One mounting member 50 is connected to the fixed end of the tensiometer 40, and the other mounting member 50 is connected to the stretching end of the tensiometer 40.

[0055] Specifically, when only one pressing plate 20 can move, the mounting member 50 on the movable pressing plate 20 is connected to the stretching end of the tensiometer 40. During the process of moving the pressing plate 20, the pressing plate 20 can pull the tensiometer 40 during movement, measure the pulling force for flattening the pole piece, and perform statistical estimation on the data, evaluate the pulling force required to flatten different types of pole pieces, and use it for reference evaluation in the laboratory later to improve the reliability of the operation.

[0056] As Figures 1-3 As shown, in a specific embodiment, the positioning tooling 1 mainly consists of a guide rod 31, a fitting 13, a support table 10, a base 30, a mounting member 50, a tensiometer 40, and a locking member 21. Among them, the guide rod 31, the fitting 13, the mounting plate, the pressing plate 20, and the locking member 21 are made of 304 stainless steel, and the tensiometer 40 can measure the pulling force applied to the pole piece in real time. After the first slitting and the second slitting, take an effective pole piece length of 200 mm, place the pole piece on the support table 10, and then fix the pole piece under the pressing plate 20 by adjusting the locking member 21. According to different material systems, select a relatively appropriate pulling force (10 kPa to 50 kPa) level and slowly pull the mounting members 50 on both sides of the tensiometer 40 to change the pole piece from a wrinkled and ear-folded state to a straightened state. At the same time, the tensiometer 40 measures the pulling force in real time. When the reading is stable, fix the locking member 21.

[0057] It should be understood that the terms used in this text are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an", and "the" as used in this text may also include the plural forms. The terms "including", "comprising", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described in this text are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0058] Although terms such as first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another region, layer, or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms do not imply an order or sequence when used in the text. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0059] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A positioning tooling, characterized in that, For fixing the pole piece, the positioning tooling includes: A support table, on which there are two oppositely arranged pressing plates, at least one of the two pressing plates is movable on the support table, the pressing plates are used to press the pole piece against the support table, and a locking member is provided on the movable pressing plate, the locking member has an unlocking state and a locking state, when the locking member is in the unlocking state, the pressing plate is movable, and when the locking member is in the locking state, the pressing plate is locked to the support table.

2. The positioning tooling according to claim 1, characterized in that, A guide groove is provided on the support table, and a guide slider is provided on the pressing plate, and the guide slider is movably clamped in the guide groove.

3. The positioning tooling according to claim 2, characterized in that, The pressing plate is arranged as a strip-shaped plate, and guide sliders are respectively arranged at both ends of the pressing plate in the length direction, and two opposite guide grooves are provided on the support table, and the guide sliders at the same end of the two pressing plates are clamped in the same guide groove.

4. The positioning tooling according to claim 3, characterized in that, The pressing plate and the locking member are threadedly connected, and the guide slider is connected to the end of the locking member close to the support table.

5. The positioning tooling according to claim 4, wherein It further includes a base, and a guide rod is provided on the base, and the support table is movably arranged on the guide rod.

6. The positioning tooling according to claim 5, characterized in that, The number of the guide rods is four, and assembly holes are provided at the four corner ends of the support table, and the guide rods are passed through the corresponding assembly holes.

7. The positioning tooling according to claim 6, characterized in that, Internal threads are provided in the assembly holes, external threads are provided on the guide rods, and the guide rods and the assembly holes are threadedly connected.

8. The positioning tooling according to claim 6, wherein, A rotatable fitting is clamped in the assembly hole, a threaded hole is provided in the fitting, the threaded hole and the assembly hole are coaxial, and the guide rod is threadedly connected to the threaded hole.

9. The positioning tooling according to any one of claims 1-8, characterized in that, The support table is of a flat plate structure.

10. The positioning tooling according to any one of claims 1-8, characterized in that, It further includes: A tensiometer, mounting members are provided on the pressing plates, one mounting member is connected to the fixed end of the tensiometer, and the other mounting member is connected to the stretching end of the tensiometer.

Images