Positioning tool

Abstract

The utility model relates to a positioning tool which is used for fixing a battery cell, a pole plate and a negative pole pinboard and comprises a base, a fixing seat is arranged on the base, a fixing groove is formed in the fixing seat and used for fixing the battery cell, a first limiting piece and a second limiting piece are arranged on the fixing seat, a first limiting groove is formed in the first limiting piece, and a second limiting groove is formed in the second limiting piece. The first limiting piece is provided with a first limiting groove, the second limiting piece is provided with a second limiting groove, the first limiting groove is used for clamping the polar plate, when the polar plate is clamped in the first limiting groove, the polar plate abuts against one end of the battery cell, the second limiting groove is used for clamping the negative pole adapter plate, and when the negative pole adapter plate is clamped in the second limiting groove, the negative pole adapter plate abuts against the other end of the battery cell. According to the positioning tool, the positioning accuracy of welding of the polar plate and the battery cell and welding of the negative pole adapter plate and the battery cell can be improved, concentric welding of the battery cell and the polar plate and concentric welding of the battery cell and the negative pole adapter plate are guaranteed, and therefore liquid injection holes of a welded battery can be kept consistent.

Description

Technical Field

[0001] The present application relates to the technical field of positioning tooling, and in particular to a positioning tooling. Background Art

[0002] In the prior art, when processing and assembling batteries, it is necessary to weld the electrode plates and battery cells, as well as the negative electrode column adapter plate and the battery cells. During the welding process, due to the poor manual alignment rate of manual assembly, the welding positions between the battery cells and the electrode plates, as well as between the battery cells and the negative electrode column adapter plate, will be inaccurate, which will lead to the problem of inconsistent positions between the battery filling hole and the negative electrode column adapter plate. Utility Model Content

[0003] The present application provides a positioning tool to solve the problem of inaccurate welding position caused by low positioning accuracy between battery cells and plates, and between battery cells and negative pole adapter plates.

[0004] The positioning fixture according to the present application is used to fix the battery cell, the plate and the negative electrode adapter plate, including:

[0005] A base, wherein the base is provided with a fixing seat, the fixing seat is provided with a fixing groove, the fixing groove is used to fix the battery cell, the fixing seat is provided with a first limiting member and a second limiting member, the first limiting member is provided with a first limiting groove, the second limiting member is provided with a second limiting groove, the first limiting groove is used to clamp the electrode plate, when the electrode plate is clamped in the first limiting groove, the electrode plate abuts against one end of the battery cell, the second limiting groove is used to clamp the negative electrode column adapter plate, when the negative electrode column adapter plate is clamped in the second limiting groove, the negative electrode column adapter plate abuts against the other end of the battery cell.

[0006] According to the positioning tool of the present application, a driving assembly is provided on the base, and the driving assembly is transmission-connected to the base to drive the fixing seat to rotate at least 180°.

[0007] Optionally, a support plate is provided on the base, and at least one stop member is provided on the support plate. The fixing seat has at least a first position and a second position in the circumferential direction. When the fixing seat is in the first position, the electrode plate is in a weldable position. When the fixing seat is in the second position, the negative electrode column adapter plate is in a weldable position. The stop member can abut against the fixing seat at least in the first position and the second position.

[0008] Optionally, the driving assembly includes a first power group and a second power group, and the first power group, the second power group and the fixed seat are connected in sequence, the first power group drives the fixed seat to rotate, and the fixed seat has a third position and a fourth position in the horizontal direction. When the fixed seat is in the third position, it abuts against the support plate and the stop member, and when the fixed seat is in the fourth position, it is spaced from the support plate and the stop member, and the second power group drives the fixed seat to move between the third position and the fourth position.

[0009] Optionally, there are multiple stoppers, and the multiple stoppers are arranged at intervals along the circumferential direction of the fixing seat.

[0010] Optionally, the fixing seat is made of a magnetic material, the stopper is configured as a first magnetic member, and when the fixing seat is at the third position, the first magnetic member and the fixing seat can be adsorbed.

[0011] Optionally, a second magnetic component is provided on a side of the fixing seat facing the support plate, and a third magnetic component is provided on the support plate. When the fixing seat is in the third position, the second magnetic component and the third magnetic component are adsorbed.

[0012] According to the positioning tooling of the present application, a rotatable fastening member is provided on the fixing seat, the fixing groove has an opening, the opening has a first side and a second side opposite to each other, one end of the fastening member is fixed to the first side of the opening, a first fastening portion is provided on the fixing seat, the first fastening portion is located on the second side of the opening, a second fastening portion is provided on the fastening member, and the first fastening portion and the second fastening portion can be fastened.

[0013] According to the positioning tooling of the present application, a first limiting groove is provided on the first limiting member, a locking assembly is provided on the first limiting member, the locking assembly includes a limiting column and a locking member, a guide hole is provided on the first limiting member, the guide hole is connected to the first limiting groove, the limiting column is passed through the guide hole, when the pole plate is clamped in the first limiting groove, the limiting column can move in the guide hole to abut against the pole plate, and the locking member can move to stop or avoid the limiting column.

[0014] According to the positioning tooling of the present application, the locking assembly also includes an elastic part, a mounting hole is provided on the first limiting part, a connecting rod that can rotate and move along the axial direction of the mounting hole is provided in the mounting hole, the elastic part is sleeved on the connecting rod, and the outer end of the connecting rod is connected to the locking part.

[0015] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0016] The positioning tool provided in the embodiment of the present application can use the fixing groove to fix the battery cell, and the first limit member and the second limit member are provided on the fixing seat. When the battery cell, the electrode plate and the negative electrode column adapter plate need to be welded, the battery cell is fixed in the fixing groove, the electrode plate is clamped in the first limit groove, and the negative electrode column adapter plate is clamped in the second limit groove. At this time, the electrode plate and the battery cell, as well as the negative electrode column adapter plate and the battery cell can be accurately positioned, thereby improving the positioning accuracy of the welding between the electrode plate and the battery cell, as well as the welding between the negative electrode column adapter plate and the battery cell, ensuring concentric welding between the battery cell and the electrode plate, as well as the battery cell and the negative electrode column adapter plate, so that the liquid filling holes of the welded battery can be kept consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention.

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0020] Figure 1 A three-dimensional diagram of a positioning tool provided in an embodiment of the present application;

[0021] Figure 2 A three-dimensional diagram from another angle of a positioning tool provided in an embodiment of the present application;

[0022] Figure 3 A side view of a positioning tool provided in an embodiment of the present application;

[0023] Figure 4 A three-dimensional diagram of the partial structure of a positioning tool provided in an embodiment of the present application.

[0024] Description of reference numerals:

[0025] The pole plate 3, the negative pole adapter plate 4, the base 10, the fixing seat 11, the second magnetic part 111, the mounting part 112, the fixing groove 12, the first limiting part 13, the first avoidance groove 131, the second limiting part 14, the second avoidance groove 141, the first buckling part 15, the driving component 20, the support plate 30, the stopper 31, the buckling part 40, the second buckling part 41, the locking component 50, the limiting column 51, the locking part 52, and the connecting rod 53. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0028] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0029] like Figure 1 and Figure 2As shown, the positioning tooling according to the embodiment of the present application is used to fix the battery cell, the electrode plate 3 and the negative electrode column adapter plate 4, including a base 10, a fixing seat 11 is provided on the base 10, and a fixing groove 12 is provided on the fixing seat 11. The fixing groove 12 is used to fix the battery cell, and a first limiting member 13 and a second limiting member 14 are provided on the fixing seat 11. The first limiting member 13 is provided with a first limiting groove, and the second limiting member 14 is provided with a second limiting groove. The first limiting groove is used to clamp the electrode plate 3. When the electrode plate 3 is clamped in the first limiting groove, the electrode plate 3 abuts against one end of the battery cell. The second limiting groove is used to clamp the negative electrode column adapter plate 4. When the negative electrode column adapter plate 4 is clamped in the second limiting groove, the negative electrode column adapter plate 4 abuts against the other end of the battery cell.

[0030] To elaborate, the fixing groove 12 can be used to fix the battery cell, and the fixing seat 11 is provided with a first limiter 13 and a second limiter 14. When the battery cell, the electrode plate 3 and the negative electrode column adapter plate 4 need to be welded, the battery cell is fixed in the fixing groove 12, the electrode plate 3 is clamped in the first limiter groove, and the negative electrode column adapter plate 4 is clamped in the second limiter groove. At this time, the electrode plate 3 and the battery cell, as well as the negative electrode column adapter plate 4 and the battery cell can be accurately positioned.

[0031] like Figure 1 and Figure 2 As shown, the first limiting member 13 is provided with a first avoidance groove 131, which is connected to the first limiting groove and is used to avoid the welding position between the electrode plate 3 and the battery cell. The second limiting member 14 is provided with a second avoidance groove 141, which is used to avoid the welding position between the negative electrode column adapter plate 4 and the battery cell, thereby facilitating the welding of the electrode plate 3 and the battery cell and the negative electrode column adapter plate 4 and the battery cell.

[0032] It is understandable that the shapes of the first limiting groove and the second limiting groove can be set according to the shapes of the electrode plate 3 and the negative electrode column adapter plate 4.

[0033] According to the positioning tooling of the embodiment of the present application, the positioning accuracy of the welding between the electrode plate 3 and the battery cell and the welding between the negative electrode column adapter plate 4 and the battery cell is improved, ensuring concentric welding between the battery cell and the electrode plate 3 and between the battery cell and the negative electrode column adapter plate 4, so that the liquid injection holes of the welded battery can remain consistent.

[0034] like Figure 1 As shown, according to the positioning tooling of the embodiment of the present application, a driving assembly 20 is provided on the base 10, and the driving assembly 20 is transmission-connected to the base 10 to drive the fixing seat 11 to rotate at least 180°.

[0035] In detail, since the electrode plate 3 and the negative electrode adapter plate 4 are respectively located at the two ends of the battery cell, when the negative electrode adapter plate 4 and the battery cell need to be welded, the negative electrode adapter plate 4 needs to be rotated to an upward position. At this time, the electrode plate 3 is in a downward position. After the welding is completed, the driving assembly 20 is used to drive the fixing base 11 to rotate, so that the electrode plate 3 is in an upward position. Since the rotation from the negative electrode adapter plate 4 to the position where the electrode plate 3 is facing upward requires at least 180 degrees, the power source of the driving assembly 20 can be a cylinder or an electric motor, or it can be manually rotated.

[0036] like Figure 1 As shown, in some embodiments, a support plate 30 is provided on the base 10, and at least one stopper 31 is provided on the support plate 30. The fixing seat 11 has at least a first position and a second position in the circumferential direction. When the fixing seat 11 is in the first position, the electrode plate 3 is in a weldable position. When the fixing seat 11 is in the second position, the negative electrode adapter plate 4 is in a weldable position. The stopper 31 can stop against the fixing seat 11 at least in the first position and the second position.

[0037] Specifically, when the electrode plate 3 needs to be welded, the fixing seat 11 needs to be rotated so that the fixing seat 11 is in the first position, so that the electrode plate 3 is in a weldable position. At this time, the fixing seat 11 needs to be limited by the stopper 31 to ensure that the fixing seat 11 is prevented from rotating when the welding equipment welds the electrode plate 3.

[0038] Among them, the weldable position refers to the position for welding relative to the welding equipment. For example, the battery cell is vertical so that the electrode plate 3 is facing upward to meet the conditions for welding by the welding equipment. Then the first position is the position where the battery cell is vertical and the electrode plate 3 is facing upward. If the battery cell is tilted, the electrode plate 3 is in an oblique upward position to meet the conditions for welding by the welding equipment. Then the first position is the position where the battery cell is tilted and the electrode plate 3 is in an oblique upward position.

[0039] When the negative pole adapter plate 4 needs to be welded, the fixing seat 11 needs to be rotated so that the fixing seat 11 is in the second position, so that the negative pole adapter plate 4 is in a weldable position. At this time, the fixing seat 11 needs to be limited by the stopper 31 to ensure that the fixing seat 11 is prevented from rotating when the welding equipment welds the negative pole adapter plate 4.

[0040] Among them, the weldable position refers to the position for welding relative to the welding equipment. For example, the battery cell is vertical so that the negative pole adapter plate 4 is facing upward to meet the conditions for welding by the welding equipment. The second position is the position where the battery cell is vertical and the negative pole adapter plate 4 is facing upward. If the battery cell is tilted, the negative pole adapter plate 4 is in an oblique upward position to meet the conditions for welding by the welding equipment. The second position is the position where the battery cell is tilted and the negative pole adapter plate 4 is in an oblique upward position.

[0041] The number of the stoppers 31 can be one or more and can be set as needed.

[0042] The structure and shape of the stopper 31 can be set as needed. For example, the contact surface between the stopper 31 and the fixing seat 11 can be an arc or a plane. In some embodiments, a plane is selected to increase the contact area between the stopper 31 and the fixing seat 11.

[0043] In some embodiments, the drive assembly 20 includes a first power group and a second power group. The first power group, the second power group and the fixed seat 11 are connected in sequence. The first power group drives the fixed seat 11 to rotate. The fixed seat 11 has a third position and a fourth position in the horizontal direction. When the fixed seat 11 is in the third position, it abuts against the support plate 30 and the stop member 31. When the fixed seat 11 is in the fourth position, it is spaced from the support plate 30 and the stop member 31. The second power group drives the fixed seat 11 to move between the third position and the fourth position.

[0044] In detail, the drive assembly 20 includes a first power group and a second power group. When the fixed seat 11 is in the third position, it abuts against the support plate 30 and the stop member 31, which can increase the contact area with the fixed seat 11, improve the stability of the fixed seat 11 during welding, and prevent the fixed seat 11 from rotating and shifting during the welding process.

[0045] In order to simplify the position setting of the stopper 31 so that there will be no interference with the stopper 31 during the rotation of the fixed seat 11, the fixed seat 11 is driven to move between the third position and the fourth position by the second power group. In this way, when the fixed seat 11 needs to be rotated, the fixed seat 11 is driven to move to the fourth position by the second power group, so that the fixed seat 11 is spaced from the support plate 30 and the stopper 31, which facilitates the rotation of the fixed seat 11. When the battery cells on the fixed seat 11 need to be welded, the second power group drives the fixed seat 11 to move to the third position, so that the fixed seat 11 can be limited by the support plate 30 and the stopper 31.

[0046] The third position includes the first position and the second position.

[0047] In addition, the power source of the first power group may be an electric motor or a cylinder, and the power source of the second power group may be an electric motor or a cylinder.

[0048] It should be noted that the third position and the fourth position are only relative restrictions to describe the spatial position of the fixing seat 11 and the spatial coordination with the support plate 30 and the stopper 31, and no specific restrictions are imposed. For example, the fourth position can be a position where the straight-line distance between the fixing seat 11 and the stopper 31 is 3 cm, 4 cm, and 5 cm, etc.

[0049] like Figure 1 As shown, in some embodiments, there are multiple stoppers 31 , and the multiple stoppers 31 are spaced apart along the circumferential direction of the fixing seat 11 .

[0050] In detail, the plurality of stoppers 31 are spaced apart along the circumferential direction of the fixing seat 11 , and the stoppers 31 can be used to limit the fixing seat 11 in multiple directions, thereby improving the stability of the fixing seat 11 .

[0051] In some embodiments, the fixing base 11 is made of a magnetic material, and the stopper 31 is configured as a first magnetic member. When the fixing base 11 is at the third position, the first magnetic member and the fixing base 11 can be attracted to each other.

[0052] It is understandable that the first magnetic member and the fixing base 11 can be adsorbed to further enhance the stability of the fixing base 11 .

[0053] The magnetic material of the fixing base 11 can be iron, nickel, cobalt, or alloys thereof, etc. The first magnetic member is a strong magnet.

[0054] like Figure 4 As shown, in some embodiments, a second magnetic component 111 is provided on the side of the fixing base 11 facing the support plate 30, and a third magnetic component is provided on the support plate 30. When the fixing base 11 is in the third position, the second magnetic component 111 and the third magnetic component are adsorbed.

[0055] The second magnetic component 111 and the third magnetic component may both be strong magnets, or one of the second magnetic component 111 and the third magnetic component may be a strong magnet and the other may be made of a magnetic material such as iron, nickel, cobalt or alloys thereof.

[0056] like Figure 4 As shown, in a specific embodiment, a mounting member 112 is provided on the fixing seat 11 , and a mounting groove is provided on a side of the mounting member 112 facing the support plate 30 , and a second magnetic member 111 is clamped in the mounting groove.

[0057] like Figure 1 As shown, according to the positioning tooling of the embodiment of the present application, a rotatable fastening member 40 is provided on the fixing seat 11, the fixing groove 12 has an opening, the opening has a first side and a second side opposite to each other, one end of the fastening member 40 is fixed to the first side of the opening, a first fastening portion 15 is provided on the fixing seat 11, the first fastening portion 15 is located on the second side of the opening, a second fastening portion 41 is provided on the fastening member 40, and the first fastening portion 15 and the second fastening portion 41 can be fastened.

[0058] Specifically, a rotatable fastening member 40 is provided on the fixing seat 11. The fixing slot 12 has an opening with a first side and a second side facing each other. One end of the fastening member 40 is fixed to one side of the opening. After the battery cell is installed in the fixing slot 12, the other end of the fastening member 40 is fastened to the first fastening portion 15, thereby securing the battery cell with the fastening member 40 and preventing the battery cell from falling out of the fixing slot 12. When the battery cell needs to be removed from the fixing slot 12, the first fastening portion 15 and the second fastening portion 41 are separated, thereby opening the fastening member 40 and removing the battery cell. In this way, the provision of the fastening member 40 can improve the reliability of the battery cell fixation and simplify the structural setting of the positioning tooling.

[0059] In a specific embodiment, the second fastening portion 41 is configured as a latch hole. When the second fastening portion 41 and the first fastening portion 15 are fastened together, the latch hole is sleeved on the first fastening portion 15.

[0060] like Figure 1 and Figure 2 As shown, according to the positioning tooling of the embodiment of the present application, a first limiting groove is provided on the first limiting member 13, a locking assembly 50 is provided on the pole plate 3, the locking assembly 50 includes a limiting column 51 and a locking member 52, and a guide hole is provided on the first limiting member 13, the guide hole is connected to the first limiting groove, the limiting column 51 is passed through the guide hole, when the pole plate 3 is clamped in the first limiting groove, the limiting column 51 can be moved in the guide hole to abut against the pole plate 3, and the locking member 52 can be moved to stop or avoid the limiting column 51.

[0061] Specifically, when the electrode plate 3 is clamped in the first limiting groove, the electrode plate 3 may not be fully engaged with the first limiting groove due to processing errors. In this case, the locking member 52 is positioned to avoid the limiting post 51. By adjusting the limiting post 51, the limiting post 51 is moved in the guide hole so that one end can abut against the electrode plate 3. After the limiting post 51 abuts the electrode plate 3, the position of the locking member 52 is adjusted so that the locking member 52 limits the limiting post 51, thereby fixing the electrode plate 3. The limiting post 51 can adapt to different sizes and shapes of the electrode plate 3, thereby improving the reliability and fixation of the electrode plate 3 when it is clamped in the first limiting groove, thereby improving the yield rate after the battery cell is welded.

[0062] The cross-sectional shape of the limiting post 51 includes, but is not limited to, circular, square, elliptical, and triangular shapes, and is not limited to this in the present application. The cross-sectional shape of the guide hole also includes, but is not limited to, circular, square, elliptical, and triangular shapes. It is best that the cross-sectional shapes of the limiting post 51 and the guide hole are consistent to reduce radial movement of the limiting post 51 in the guide hole.

[0063] According to the positioning tooling of the embodiment of the present application, the locking assembly 50 also includes an elastic member, a mounting hole is provided on the first limiting member 13, a connecting rod 53 that can rotate and move along the axial direction of the mounting hole is provided in the mounting hole, the elastic member is sleeved on the connecting rod 53, and the outer end of the connecting rod 53 is connected to a locking member 52.

[0064] When the locking member 52 is not fastened to the limiting column 51, the elastic member is in a natural state. When the locking member 52 needs to be abutted against the limiting column 51, the locking member 52 is rotated. At this time, the connecting rod 53 rotates in the mounting hole, and the locking member 52 compresses the elastic member so that it can abut against the limiting column 51. The elastic member provides a rebound force, so that when the locking member 52 is separated from the limiting column 51, the auxiliary elastic force can bounce off, simplifying the difficulty of disassembling the locking member 52 and the limiting column 51, thereby improving the efficiency during operation.

[0065] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an", and "" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain", and "have" are inclusive and therefore specify the presence of the stated features, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0066] Although the terms first, second, third, etc. can be used in the text 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 can only be used to distinguish an 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 order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0067] The above are merely specific embodiments of the present invention, intended to enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A positioning tool for fixing battery cells, plates and negative electrode adapter plates, characterized in that: include: A base, wherein the base is provided with a fixing seat, the fixing seat is provided with a fixing groove, the fixing groove is used to fix the battery cell, the fixing seat is provided with a first limiting member and a second limiting member, the first limiting member is provided with a first limiting groove, the second limiting member is provided with a second limiting groove, the first limiting groove is used to clamp the electrode plate, when the electrode plate is clamped in the first limiting groove, the electrode plate abuts against one end of the battery cell, the second limiting groove is used to clamp the negative electrode column adapter plate, when the negative electrode column adapter plate is clamped in the second limiting groove, the negative electrode column adapter plate abuts against the other end of the battery cell.

2. The positioning tool according to claim 1, characterized in that: A driving assembly is provided on the base, and the driving assembly is transmission-connected to the base to drive the fixing seat to rotate at least 180°.

3. The positioning tool according to claim 2, characterized in that: A support plate is provided on the base, and at least one stopper is provided on the support plate. The fixing seat has at least a first position and a second position in the circumferential direction. When the fixing seat is in the first position, the electrode plate is in a weldable position. When the fixing seat is in the second position, the negative electrode adapter plate is in a weldable position. The stopper can abut against the fixing seat at least in the first position and the second position.

4. The positioning tool according to claim 3, characterized in that: The driving assembly includes a first power group and a second power group, and the first power group, the second power group and the fixed seat are connected in sequence. The first power group drives the fixed seat to rotate, and the fixed seat has a third position and a fourth position in the horizontal direction. When the fixed seat is in the third position, it abuts against the support plate and the stop member. When the fixed seat is in the fourth position, it is spaced from the support plate and the stop member. The second power group drives the fixed seat to move between the third position and the fourth position.

5. The positioning tool according to claim 4, characterized in that: There are multiple stoppers, and the multiple stoppers are arranged at intervals along the circumferential direction of the fixing seat.

6. The positioning tool according to claim 4, characterized in that: The fixing seat is made of a magnetic material, and the stopper is configured as a first magnetic member. When the fixing seat is at the third position, the first magnetic member and the fixing seat can be adsorbed.

7. The positioning tool according to claim 4, characterized in that: A second magnetic member is provided on a side of the fixing seat facing the support plate, and a third magnetic member is provided on the support plate. When the fixing seat is in the third position, the second magnetic member and the third magnetic member are attracted to each other.

8. The positioning tool according to any one of claims 1 to 6, characterized in that: The fixing seat is provided with a rotatable fastening member, the fixing groove has an opening, the opening has a first side and a second side opposite to each other, one end of the fastening member is fixed to the first side of the opening, the fixing seat is provided with a first fastening portion, the first fastening portion is located on the second side of the opening, the fastening member is provided with a second fastening portion, and the first fastening portion and the second fastening portion can be fastened.

9. The positioning tool according to any one of claims 1 to 6, characterized in that: The first limiting member is provided with a locking assembly, and the locking assembly includes a limiting column and a locking member. The first limiting member is provided with a guide hole, and the guide hole is communicated with the first limiting groove. The limiting column is passed through the guide hole. When the electrode plate is clamped in the first limiting groove, the limiting column can move in the guide hole to abut against the electrode plate, and the locking member can move to stop or avoid the limiting column.

10. The positioning tool according to claim 9, characterized in that: The locking assembly also includes an elastic member, a mounting hole is provided on the first limiting member, a connecting rod that can rotate and move along the axial direction of the mounting hole is provided in the mounting hole, the elastic member is sleeved on the connecting rod, and the outer end of the connecting rod is connected to the locking member.

Images