Positioning clamp for reducing scratches of blade battery diaphragm

Abstract

The utility model discloses a positioning fixture for reducing scratches of a blade to a battery diaphragm. The positioning fixture comprises a base for placing a battery cell, a battery cell limiting block, a longitudinal sliding assembly, a transverse sliding assembly positioning sliding block, a longitudinal arrangement roller group and a transverse arrangement roller group, the battery cell limiting block is mounted on the base, and the longitudinally arranged roller group and the transversely arranged roller group are arranged on the base; the longitudinal sliding assembly is used for driving the battery cell to longitudinally slide on the base; relates to the technical field of blade battery positioning, by arranging a longitudinally arranged roller group and a transversely arranged roller group, a diaphragm is in contact with rollers instead of being in direct contact with a base in the process of transferring and positioning a battery cell, so that the problems of diaphragm scratch and powder falling caused by deposition of workshop dust particles on the surface of the base are avoided; the safety of the battery is greatly improved, the processing precision problem of the base, such as bulge, uneven surface and scratch to the diaphragm, is also avoided, and the safety risk caused by the scratch of the battery cell is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of blade battery positioning, in particular to a positioning fixture for reducing the scratching of the diaphragm of a blade battery. Background Technique

[0002] The assembly line is an important production process of lithium-ion batteries. Its general technological process is: pre-welding of positive and negative electrode tabs - welding of negative electrode cover plate - stacking and film wrapping - stacking into the shell - welding of positive electrode cover plate - pre-spot welding of positive and negative electrodes - peripheral welding of positive and negative electrodes - post-welding inspection and X-ray - helium inspection. During the actual processing of the battery cell, it needs to be transported and positioned by fixtures to ensure that the battery cell has the correct position in the forming movement of the workpiece and that this position is not changed by external forces. The positioning of the battery cell and the workpiece is of great significance for ensuring its processing quality, improving production efficiency, and reducing processing costs.

[0003] During the transportation and positioning of the battery cell from the inspection process to the connecting piece welding process, the diaphragm is in direct contact with the fixture. Since there are certain concentrations of dust particles in the workshop during actual production, if these dust particles deposit on the surface of the base, if the battery cell moves on the surface, it will cause scratching of the diaphragm and even powder falling, greatly increasing the insecurity of the battery; the processing accuracy of the base will also affect the surface of the diaphragm. Bumps and uneven surfaces generated during the processing process are the main culprits causing scratching of the battery cell. At the same time, not only the influence of external objects, but also some current batteries will perform ceramic coating treatment on one or both sides of the diaphragm to improve the heat resistance and liquid retention performance of the diaphragm in order to increase its safety performance and electrical performance. However, this ceramic layer is attached to the surface of the diaphragm base through the adhesive force of the adhesive. During the positioning process of the battery cell, the frictional force generated between the battery cell and the surface of the base will scrape off the ceramic glue, resulting in the deposition of the ceramic glue on the surface of the base to form white crystals. This kind of substance will cause scratching of the subsequent battery cell diaphragm. In order to clean this white crystal, the cleaning cycle needs to be increased, which will reduce the production efficiency. Content of the Utility Model

[0004] To solve the technical problems existing in the background technique, the utility model proposes a positioning fixture for reducing the scratching of the diaphragm of a blade battery.

[0005] A positioning fixture for reducing the scratching of the diaphragm of a blade battery proposed by the utility model includes a base for placing the battery cell, a battery cell limiting block, a longitudinal sliding component, a transverse sliding component positioning slider, a longitudinally arranged roller group, and a transversely arranged roller group;

[0006] The battery cell limiting block is installed on the base, and both the longitudinally arranged roller group and the transversely arranged roller group are arranged on the base;

[0007] The longitudinal sliding component is used to drive the battery cell to slide longitudinally on the base;

[0008] The horizontal sliding component is used to drive the battery cell to slide horizontally on the base, and the horizontal sliding component is used to drive the vertically arranged roller group to rise, and after the vertically arranged roller group rises, its height is higher than that of the horizontally arranged roller group.

[0009] This design reduces diaphragm scratching and improves battery safety. By setting the vertically arranged roller group and the horizontally arranged roller group, during the transfer and positioning of the battery cell, the diaphragm contacts the rollers instead of directly contacting the base, avoiding problems such as diaphragm scratching and powder dropping caused by the deposition of workshop dust particles on the surface of the base, greatly improving the safety of the battery, and also avoiding problems with the machining accuracy of the base, such as protrusions and uneven surfaces, which may cause scratches to the diaphragm, reducing the safety risk caused by cell scratching.

[0010] Protect the ceramic coating and improve battery performance: For diaphragms with ceramic coatings, during the positioning of the battery cell, it avoids the situation where the frictional force between the battery cell and the surface of the base scrapes off the ceramic glue, preventing the deposition of ceramic glue to form white crystals that may scratch the subsequent battery cell diaphragm, thereby protecting the ceramic coating of the diaphragm, helping to improve the heat resistance and liquid retention performance of the diaphragm, and enhancing the overall performance of the battery.

[0011] Improve production efficiency: There is no need to frequently clean the white crystals formed by the deposition of ceramic glue, reducing the cleaning cycle, thereby improving production efficiency.

[0012] Preferably, the top of the horizontally arranged roller group is higher than the base plane.

[0013] It can reduce diaphragm scratching. During the transfer and positioning of the battery cell, when the battery cell moves on the positioning fixture, since the top of the horizontally arranged roller group is higher than the base plane, the battery cell first contacts the rollers instead of the base plane. This can avoid the problem of diaphragm scratching caused by the deposition of workshop dust particles on the surface of the base. Even if there is a certain concentration of dust particles in the workshop, they will not directly contact the diaphragm, thus greatly reducing the risk of the diaphragm being scratched.

[0014] It avoids scratches to the diaphragm caused by problems with the machining accuracy of the base (such as protrusions and uneven surfaces). Since the battery cell does not directly contact the base, problems such as protrusions generated during the machining of the base will not affect the diaphragm, effectively protecting the integrity of the diaphragm.

[0015] Preferably, the horizontally arranged roller group includes three first rollers, three first grooves are provided on the base, the first rollers are located in the first grooves, and the first rollers are rotatably connected to the inner walls of the first grooves through rotating shafts.

[0016] The three first rollers of the horizontally arranged roller group are triangularly arranged on the base plane. This layout enables the battery cell to obtain more stable support and guidance during horizontal movement. When the horizontal sliding component drives the battery cell to slide horizontally, the bottom of the battery cell contacts the first roller, and the first roller rotates through a rotating shaft between the inner walls of the first groove, which can effectively assist the horizontal movement of the battery cell, reduce the friction during the movement, and make the movement of the battery cell smoother.

[0017] Preferably, the top of the vertically arranged roller group is lower than the base plane or parallel to the base plane.

[0018] In the initial state, the vertically arranged roller group does not protrude from the base plane, avoiding possible collisions or interferences with the rollers during the process of placing the battery cell on the base, ensuring that the battery cell can be stably placed on the base, and preventing unstable placement due to the obstruction of the rollers.

[0019] Preferably, the vertically arranged roller group includes three lifting blocks. An arc-shaped groove is formed in the lifting block, and a second roller is rotatably connected in the arc-shaped groove. The top of the second roller extends outside the arc-shaped groove. Three second grooves are formed on the base, and the lifting block slides in the second groove.

[0020] Only when it is necessary to move the battery cell longitudinally, the horizontally sliding component drives the vertically arranged roller group to rise. This design can avoid unnecessary friction between the rollers and the battery cell or other objects when the battery cell does not need to be moved longitudinally, thereby reducing the wear of the rollers and extending the service life of the rollers;

[0021] When longitudinal movement is not required, the rollers do not protrude and can keep the surface of the base relatively flat, avoiding accidental collisions or jams that may be caused by the accidental protrusion of the rollers, and improving the stability and safety of the production process;

[0022] The vertically arranged roller group is flush with or lower than the base plane when not activated, forming a height difference cooperation with the horizontally arranged roller group. When the horizontal sliding positioning slider pushes the battery cell to move horizontally, the horizontally arranged roller group mainly bears the support and guiding functions to ensure the accuracy of horizontal movement. When longitudinal movement is required, the vertically arranged roller group rises and acts together with the horizontally arranged roller group to achieve full-range positioning and movement control of the battery cell, improving the accuracy and precision of battery cell positioning.

[0023] Preferably, the longitudinal sliding component includes two longitudinal sliding positioning sliders.

[0024] The two longitudinal sliding positioning sliders are driven to move by an external air cylinder.

[0025] Preferably, the lateral sliding assembly includes a lateral sliding positioning slider, on which three insertion plates are installed. Semi-cylindrical protrusions are installed on the insertion plates. The insertion plates are inserted into the base, and the through part between the insertion plates and the base is in sliding connection. The bottom of the lifting block contacts the top of the insertion plate.

[0026] In the present utility model, the positioning fixture for reducing the scratching of the separator of the blade battery has the following beneficial technical effects:

[0027] 1. Reducing separator scratching and improving battery safety: By arranging the longitudinally arranged roller group and the laterally arranged roller group, during the transfer and positioning of the battery cell, the separator contacts the rollers instead of directly contacting the base, avoiding the problems of separator scratching and powder dropping caused by the deposition of workshop dust particles on the surface of the base, greatly improving the safety of the battery, and also avoiding the scratching of the separator caused by the processing accuracy problems of the base, such as protrusions and uneven surfaces, reducing the safety risk caused by the scratching of the battery cell.

[0028] 2. Protecting the ceramic coating and improving battery performance: For the separator with a ceramic coating, during the positioning process of the battery cell, the situation where the frictional force between the battery cell and the surface of the base scrapes off the ceramic glue is avoided, preventing the ceramic glue from depositing to form white crystals and scratching the subsequent battery cell separator, thereby protecting the ceramic coating of the separator, helping to improve the heat resistance and liquid retention performance of the separator, and enhancing the overall performance of the battery.

[0029] 3. Improving production efficiency: There is no need to frequently clean the white crystals formed by the deposition of ceramic glue, reducing the cleaning cycle, thereby improving production efficiency.

[0030] 4. Saving costs: When the lateral sliding assembly performs the positioning action, it drives the insertion plates to move together, driving the longitudinally arranged roller group to rise, and the height of the longitudinally arranged roller group is higher than that of the laterally arranged roller group after rising, avoiding the interference of the laterally arranged roller group during the positioning process, and not requiring a dedicated driving device for the longitudinally arranged roller group, saving costs.

[0031] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0032] Figure 1 is the front view of the structure of the present utility model;

[0033] Figure 2 is the structural schematic diagram of the lateral sliding assembly of the present utility model;

[0034] Figure 3 is the structural schematic diagram of the lifting block and the second roller of the present utility model.

[0035] In the figure, 1 is the base; 2 is the battery cell limiting block; 3 is the longitudinal sliding assembly; 4 is the transverse sliding assembly; 5 is the longitudinally arranged roller group; 6 is the transversely arranged roller group; 31 is the longitudinal sliding positioning slider; 41 is the transverse sliding positioning slider; 42 is the insertion plate; 43 is the semi-cylindrical protrusion; 51 is the lifting block; 52 is the second roller; 61 is the first roller. Specific embodiments

[0036] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0037] As Figures 1-3 shown, a positioning fixture for reducing the scratching of the separator of a blade battery includes a base 1 for placing the battery cell, a battery cell limiting block 2, a longitudinal sliding assembly 3, a transverse sliding assembly 4, a longitudinally arranged roller group 5, and a transversely arranged roller group 6;

[0038] The battery cell limiting block 2 is installed on the base 1, and both the longitudinally arranged roller group 5 and the transversely arranged roller group 6 are arranged on the base 1;

[0039] The longitudinal sliding assembly 3 is used to drive the battery cell to slide longitudinally on the base 1;

[0040] The transverse sliding assembly 4 is used to drive the battery cell to slide transversely on the base 1. The transverse sliding assembly 4 is used to drive the longitudinally arranged roller group 5 to rise, and after the longitudinally arranged roller group 5 rises, its height is higher than that of the transversely arranged roller group 6.

[0041] This design reduces the scratching of the separator and improves the battery safety. By setting the longitudinally arranged roller group 5 and the transversely arranged roller group 6, during the transfer and positioning of the battery cell, the separator contacts the roller instead of directly contacting the base 1, avoiding the problems of separator scratching and powder dropping caused by the deposition of workshop dust particles on the surface of the base 1, greatly improving the battery safety, and also avoiding the problem of the processing accuracy of the base 1, such as protrusions and uneven surfaces, causing scratches to the separator, and reducing the safety risk caused by the scratching of the battery cell.

[0042] Protect the ceramic coating and improve the battery performance: For the separator with a ceramic coating, during the positioning of the battery cell, the situation where the frictional force between the battery cell and the surface of the base 1 scrapes off the ceramic glue is avoided, preventing the deposition of the ceramic glue to form white crystals and scratching the subsequent battery cell separator, thereby protecting the ceramic coating of the separator, helping to improve the heat resistance and liquid retention performance of the separator, and enhancing the overall performance of the battery.

[0043] Improve production efficiency: There is no need to frequently clean the white crystals formed by the deposition of ceramic glue, reducing the cleaning cycle and thus improving production efficiency.

[0044] A further improvement of the technical solution lies in that the top of the laterally arranged roller group 6 is higher than the plane of the base 1;

[0045] It can reduce diaphragm scratching. During the process of battery cell transfer and positioning, when the battery cell moves on the positioning fixture, since the top of the laterally arranged roller group 6 is higher than the plane of the base 1, the battery cell first contacts the rollers instead of the plane of the base 1. This can avoid the problem of diaphragm scratching caused by the deposition of dust particles in the workshop on the surface of the base 1. Even if there is a certain concentration of dust particles in the workshop, they will not directly contact the diaphragm, thus greatly reducing the risk of the diaphragm being scratched.

[0046] It avoids the scratching of the diaphragm caused by the machining accuracy problems (such as protrusions and uneven surfaces) of the base 1. Because the battery cell does not directly contact the base 1, the problems such as protrusions generated during the machining process of the base 1 will not affect the diaphragm, effectively protecting the integrity of the diaphragm.

[0047] A further improvement of the technical solution lies in that the laterally arranged roller group 6 includes three first rollers 61, and three first grooves are provided on the base 1. The first rollers 61 are located in the first grooves, and the first rollers 61 are rotationally connected to the inner walls of the first grooves through rotating shafts;

[0048] The three first rollers 61 are arranged in a triangular form on the plane of the base 1;

[0049] The three first rollers 61 of the laterally arranged roller group 6 are arranged in a triangular form on the plane of the base 1. This layout enables the battery cell to obtain more stable support and guidance during lateral movement. When the lateral sliding assembly 4 drives the battery cell to slide laterally, the bottom of the battery cell contacts the first rollers 61. The first rollers 61 rotate through the rotating shafts between the inner walls of the first grooves, which can effectively assist the lateral movement of the battery cell, reduce the friction during the movement, and make the movement of the battery cell smoother.

[0050] A further improvement of the technical solution lies in that the top of the longitudinally arranged roller group 5 is lower than the plane of the base 1 or parallel to the plane of the base 1;

[0051] In the initial state, the longitudinally arranged roller group 5 does not protrude from the plane of the base 1, avoiding possible collision or interference with the rollers during the process of placing the battery cell on the base 1, ensuring that the battery cell can be placed stably on the base 1 without being unstable due to the obstruction of the rollers.

[0052] A further improvement of the technical solution lies in that the longitudinally arranged roller group 5 includes three lifting blocks 51. An arc-shaped groove is formed in the lifting block 51, and a second roller 52 is rotatably connected in the arc-shaped groove. The top of the second roller 52 extends to the outside of the arc-shaped groove. Three second grooves are formed in the base 1, and the lifting block 51 slides in the second grooves;

[0053] The three second rollers 52 are arranged in a triangular form on the plane of the base 1;

[0054] Only when the battery cell needs to be moved longitudinally, the longitudinally arranged roller group 5 is driven by the transverse sliding assembly 4 to rise. This design can avoid unnecessary friction between the rollers and the battery cell or other objects when the battery cell does not need to be moved longitudinally, thereby reducing the wear of the rollers and extending the service life of the rollers;

[0055] When longitudinal movement is not required, the rollers do not protrude, and the surface of the base 1 can remain relatively flat, avoiding accidental collisions or jams that may be caused by the accidental protrusion of the rollers, and improving the stability and safety of the production process;

[0056] When the longitudinally arranged roller group 5 is not activated, it is flush with or lower than the plane of the base 1, forming a height difference cooperation with the transversely arranged roller group 6. When the transverse sliding positioning slider 41 pushes the battery cell to move horizontally, the transversely arranged roller group 6 mainly bears the supporting and guiding functions to ensure the accuracy of the horizontal movement. When longitudinal movement is required, the longitudinally arranged roller group 5 rises and acts together with the transversely arranged roller group 6 to achieve all-round positioning and movement control of the battery cell, improving the accuracy and precision of the battery cell positioning.

[0057] A further improvement of the technical solution lies in that the longitudinal sliding assembly 3 includes two longitudinal sliding positioning sliders 31.

[0058] The two longitudinal sliding positioning sliders 31 are driven to move by an external air cylinder.

[0059] A further improvement of the technical solution lies in that the transverse sliding assembly 4 includes a transverse sliding positioning slider 41. Three insertion plates 42 are installed on the transverse sliding positioning slider 41, and a semi-cylindrical protrusion 43 is installed on the insertion plate 42. The insertion plate 42 is inserted into the base 1, and the through portion of the insertion plate 42 and the base 1 is in a sliding connection. The bottom of the lifting block 51 is in contact with the top of the insertion plate 42.

[0060] The base 1 is provided with a slot (not shown in the figure) matching the insertion plate 42, and the second groove is communicated with the slot.

[0061] When the horizontal sliding component 4 performs the positioning action, it drives the plug board 42 to move together, drives the longitudinally arranged roller group 5 to rise, and after the longitudinally arranged roller group 5 rises, its height is higher than that of the horizontally arranged roller group 6, avoiding the interference of the horizontally arranged roller group 6 during the positioning process, and there is no need to specifically design a driving device for the longitudinally arranged roller group 5, saving costs.

[0062] During actual use, the first roller 61 of the longitudinally arranged roller group 5 is 1 mm higher than the plane of the base 1, and the second roller 52 of the longitudinally arranged roller group 5 is lower than or parallel to the plane of the base 1;

[0063] When the transportation fixture places the battery cell on the base 1 of the device, the longitudinally sliding positioning slider 31 first pushes the battery cell to the battery cell limiting block 2 on one side. While the horizontally sliding positioning slider 41 pushes the battery cell, it lifts the second roller 52, and at this time, the second roller 52 is 2 mm higher than the plane of the base 1.

[0064] The horizontally arranged roller group can only rotate fixedly, and the longitudinally arranged roller group can not only rotate but also move up and down

[0065] The outer wheel diameter and width of the first roller 61 and the second roller 52 can be designed according to the length and width of the base 1 and the battery cell, flexibly adapting to different sizes of battery cells. The outer wheel diameter and width of the first roller 61 and the second roller 52 can be designed according to the length and width of the base 1 and the battery cell, enabling the positioning fixture to flexibly adapt to different sizes of battery cells and improving the versatility of the fixture.

[0066] In the working process of this embodiment:

[0067] In the detection process to the connecting piece welding process, when the transportation fixture places the battery cell on the base 1 of the positioning fixture, first, the two longitudinally sliding positioning sliders 31 are activated, and the battery cell is pushed to the battery cell limiting block 2 on one side to achieve the longitudinal preliminary positioning of the battery cell.

[0068] The three first rollers 61 of the horizontally arranged roller group 6 are always located in the first groove on the base 1, and their tops are 1 mm higher than the plane of the base 1. The three first rollers 61 are arranged in a triangular form on the plane of the base 1. When the battery cell moves horizontally under the push of the horizontally sliding positioning slider 41, the bottom of the battery cell contacts the first roller 61, and the first roller 61 rotates through the rotating shaft between the inner wall of the first groove to assist the horizontal movement of the battery cell. When the horizontal sliding component 4 drives the battery cell to slide horizontally on the base 1, the bottom of the battery cell contacts the first roller 61, and the first roller 61 rotates to assist the movement of the battery cell.

[0069] Next, the horizontal sliding positioning slider 41 starts to work, pushing the battery cell to move horizontally. During the movement of the horizontal sliding positioning slider 41, the insertion plate 42 mounted on it is inserted into the slot of the base 1, and the semi-cylindrical protrusion 43 on the insertion plate 42 contacts the bottom of the lifting block 51 of the longitudinally arranged roller group 5. As the insertion plate 42 continues to be pushed forward, the lifting block 51 is pushed upward. At this time, the second roller 52 in the arc-shaped groove on the lifting block 51 is pushed up, 2 mm higher than the plane of the base 1.

[0070] The tops of the three second rollers 52 of the longitudinally arranged roller group 5 are lower than or parallel to the plane of the base 1 in the initial state. After being pushed up by the horizontal sliding positioning slider 41, their height is higher than that of the horizontally arranged roller group 6. The three second rollers 52, which are also arranged in a triangular form, rotate when the battery cell moves longitudinally, assisting the battery cell to move longitudinally. When the longitudinal sliding assembly 3 drives the battery cell to slide longitudinally on the base 1, the bottom of the battery cell contacts the lifted second roller 52, and the second roller 52 rotates to reduce the friction force.

[0071] In this way, during the transfer and positioning of the battery cell, it is always the diaphragm that contacts the rollers, avoiding the direct contact between the diaphragm and the base 1 that may have dust particles or machining accuracy problems, thereby reducing the risk of diaphragm scratching. At the same time, it also protects the diaphragm with a ceramic coating, preventing the ceramic glue from being scraped off to form white crystals and scratching the subsequent battery cell diaphragm.

[0072] At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0073] It should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 construed as a limitation to the present invention.

[0074] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0075] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0076] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.

[0077] As mentioned above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A positioning fixture for reducing the scratching of the separator of a blade battery, characterized in that, It includes a base (1) for placing battery cells, a battery cell limiting block (2), a longitudinal sliding component (3), a transverse sliding component (4), a longitudinally arranged roller group (5) and a transversely arranged roller group (6); The battery cell limiting block (2) is installed on the base (1), and the longitudinally arranged roller group (5) and the transversely arranged roller group (6) are both arranged on the base (1); The longitudinal sliding component (3) is used to drive the battery cell to slide longitudinally on the base (1); The transverse sliding component (4) is used to drive the battery cell to slide transversely on the base (1), and the transverse sliding component (4) is used to drive the longitudinally arranged roller group (5) to rise.

2. The positioning fixture for reducing the scratching of the separator of the blade battery according to claim 1, wherein, The top of the transversely arranged roller group (6) is higher than the plane of the base (1).

3. The positioning fixture for reducing the scratching of the diaphragm of the blade battery according to claim 2, characterized in that, The transversely arranged roller group (6) includes three first rollers (61), three first grooves are formed on the base (1), the first rollers (61) are located in the first grooves, and the first rollers (61) are rotatably connected to the inner walls of the first grooves through rotating shafts.

4. The positioning fixture for reducing the scratch of the separator of the blade battery according to claim 1, wherein, The top of the longitudinally arranged roller group (5) is lower than the plane of the base (1) or parallel to the plane of the base (1).

5. The positioning fixture for reducing the scratch of the separator of the blade battery according to claim 4, characterized in that, The longitudinally arranged roller group (5) includes three lifting blocks (51), an arc-shaped groove is formed on the lifting block (51), a second roller (52) is rotatably connected in the arc-shaped groove, the top of the second roller (52) extends outside the arc-shaped groove, and three second grooves are formed on the base (1), and the lifting blocks (51) slide in the second grooves.

6. The positioning fixture for reducing the scratch of the separator of the blade battery according to claim 1, wherein, The longitudinal sliding component (3) includes two longitudinal sliding positioning sliders (31).

7. The positioning fixture for reducing the scratching of the diaphragm of the blade battery according to claim 5, wherein The transverse sliding component (4) includes a transverse sliding positioning slider (41), three inserting plates (42) are installed on the transverse sliding positioning slider (41), a semi-cylindrical protrusion (43) is installed on the inserting plate (42), the inserting plate (42) is inserted into the base (1), the through part of the inserting plate (42) and the base (1) is in sliding connection, and the bottom of the lifting block (51) is in contact with the top of the inserting plate (42).

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