Button cell pole piece welding jig

Abstract

The utility model discloses a button cell pole piece welding jig which comprises an overturning block, a first base and a second base, the overturning block is provided with a first side face and a second side face which are opposite, the overturning block is provided with a plurality of clamping holes penetrating from the first side face to the second side face, and the clamping holes are used for clamping button cells; the first base is used for being detachably spliced with the overturning block and shielding the clamping hole in the first side face. The second base is used for being detachably spliced with the overturning block and shielding the clamping hole in the second side face. The button cell pole piece welding jig provided by the utility model is specially used for welding pole pieces of button cells, can effectively ensure the positioning consistency before and after the button cells are turned over, ensures the product quality, can turn over a plurality of button cells at the same time, and improves the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a button cell electrode welding fixture. Background Technology

[0002] Due to their small size, button batteries are widely used in various microelectronic products, such as Bluetooth headsets and computer motherboards. Taking headsets as an example, positive and negative electrodes need to be welded to opposite sides of the button battery. In the current button battery electrode welding process, workers or robotic arms typically weld the positive electrode to the front of a single battery, and then directly flip the battery to the other side to weld the negative electrode. This process, lacking specialized fixtures, cannot effectively ensure the consistency of battery positioning before and after flipping, easily leading to quality problems such as inaccurate electrode welding angles and poor appearance on both sides of the button battery. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a button cell electrode welding fixture, which is specifically designed for welding electrode sheets of button cells. It can effectively ensure the positioning consistency before and after the button cell is flipped, and can flip multiple button cells simultaneously, thereby improving production efficiency.

[0004] According to an embodiment of the present invention, a button cell electrode welding fixture includes a flipping block, a first base, and a second base. The flipping block has a first side and a second side opposite to each other. The flipping block has a plurality of clamping holes extending from the first side to the second side, and the clamping holes are used to clamp button cells. The first base is used to be detachably spliced ​​with the flipping block and to cover the clamping holes on the first side. The second base is used to be detachably spliced ​​with the flipping block and to cover the clamping holes on the second side.

[0005] The button cell electrode welding fixture according to the embodiments of this utility model has at least the following beneficial effects: In the button cell electrode welding fixture provided by this utility model, the flipping block and the first base are detachably spliced, and the flipping block and the second base are detachably spliced. Therefore, during the electrode welding process of the button cell, the flipping block can first be spliced ​​with the second base (or the first base) to cover one end of the clamping hole, and the button cell can be inserted into the clamping hole from the first side (or the second side). Then, the electrode is welded to the uncovered side of the button cell, and then the first base is... The second base (or the first base) is attached to the flipping block to cover the other end of the clamping hole. Then the flipping block is flipped and the second base (or the first base) is removed. This allows the electrode to be welded to the other side of the button cell. Throughout the process, the button cell does not need to be removed from the flipping block before all welding work is completed. The button cell is always in the clamping hole and can be flipped as a whole with the flipping block, ensuring the consistent positioning of the button cell before and after flipping and ensuring product quality. At the same time, the flipping block can clamp multiple button cells at the same time to flip multiple button cells at the same time, thereby improving production efficiency.

[0006] According to some embodiments of the present invention, one of the flipping block and the first base is provided with a first insertion part, and the other is provided with a first insertion hole, wherein the first insertion part is used to be inserted and engaged with the first insertion hole.

[0007] According to some embodiments of the present invention, one of the flipping block and the second base is provided with a second insertion part, and the other is provided with a second insertion hole, wherein the second insertion part is used to insert and cooperate with the second insertion hole.

[0008] According to some embodiments of the present invention, the first insertion hole is opened on the first side, the second insertion hole is opened on the third side of the flip block, the axis of the second insertion hole is perpendicular to the axis of the first insertion hole, the second base is provided with a mounting part, the second insertion part is provided on the mounting part, and the mounting part is used to cooperate with the third side for positioning.

[0009] According to some embodiments of the present invention, the flipping block is provided with a first positioning structure and a second positioning structure, the first base is provided with a third positioning structure for cooperating with the first positioning structure, and the second base is provided with a fourth positioning structure for cooperating with the second positioning structure.

[0010] According to some embodiments of the present invention, the first positioning structure includes a first positioning part protruding from the first side, the first positioning part being located on one side of all the clamping holes, and the third positioning structure includes a first positioning surface and a third positioning part, the first positioning surface being disposed on the first base, and the third positioning part protruding from the first positioning surface, wherein the first positioning surface is used to fit against the side of the first positioning part away from the second side, the third positioning part is used to fit against the first side, and the third positioning part can cooperate with the first positioning part to limit positioning.

[0011] According to some embodiments of the present invention, the second positioning structure includes a second positioning part protruding from the second side, the second positioning part being located on one side of all the clamping holes, the fourth positioning structure including a second positioning surface and a fourth positioning part, the second positioning surface being disposed on the second base, the fourth positioning part protruding from the second positioning surface, wherein the second positioning surface is used to fit against the side of the second positioning part away from the first side, the fourth positioning part is used to fit against the second side, and the fourth positioning part can cooperate with the second positioning part to limit positioning, and at least one of the third positioning part and the fourth positioning part is provided with an electrode clearance groove.

[0012] According to some embodiments of the present invention, the clamping hole has a first limiting groove and a second limiting groove. The first limiting groove is formed in the third positioning part, and the second limiting groove is formed in the fourth positioning part. The third positioning part is provided with a first limiting protrusion for cooperating with the first limiting groove, and the fourth positioning part is provided with a second limiting protrusion for cooperating with the second limiting groove.

[0013] According to some embodiments of the present invention, the first positioning part has a first placement groove, and all the clamping holes are arranged in a straight line along the first placement groove. The first placement groove is used to place the first material strip connected to the first electrode plate. The second positioning part has a second placement groove, and all the clamping holes are arranged in a straight line along the second placement groove. The second placement groove is used to place the second material strip connected to the second electrode plate.

[0014] According to some embodiments of the present invention, the clamping hole is connected to the first placement groove through a first positioning groove, the first positioning groove is formed in the first positioning part, the clamping hole is connected to the second placement groove through a second positioning groove, and the second positioning groove is formed in the second positioning part.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is an exploded view of the button cell electrode welding fixture according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 A cross-sectional view of the flipping block of the button cell electrode welding fixture is shown.

[0019] Figure 3 for Figure 1 A schematic diagram of the first base of the button cell electrode welding fixture is shown;

[0020] Figures 4 to 7 for Figure 1 The diagram shown illustrates the welding of button cell electrode sheets using the welding fixture according to the first welding sequence.

[0021] Figure label:

[0022] Flip block 100, first side surface 110, first insertion hole 111, second side surface 120, clamping hole 130, first limiting groove 131, second limiting groove 132, third side surface 140, second insertion hole 141, first positioning part 150, first placement groove 151, first positioning groove 152, second positioning part 160, second placement groove 161, second positioning groove 162, operating hole 170, first base 200, first insertion part 21 0. First positioning surface 220, third positioning part 230, first limiting protrusion 231, electrode clearance groove 232, second base 300, second insertion part 310, second positioning surface 320, fourth positioning part 330, second limiting protrusion 331, mounting part 340, first material strip 400, first connecting part 410, first electrode 420, second material strip 500, second connecting part 510, second electrode 520, button cell 600. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Reference Figure 1 According to an embodiment of the present invention, a button cell electrode welding fixture includes a flipping block 100, a first base 200, and a second base 300. The flipping block 100 has a first side 110 and a second side 120 facing each other. The flipping block 100 has a plurality of clamping holes 130 extending from the first side 110 to the second side 120. The clamping holes 130 are used to clamp the button cell 600. The first base 200 is used to detachably connect with the flipping block 100 and cover the clamping holes 130 at the first side 110. The second base 300 is used to detachably connect with the flipping block 100 and cover the clamping holes 130 at the second side 120.

[0028] In the button cell electrode welding fixture provided by this utility model, the flipping block 100 is detachably connected to the first base 200, and the flipping block 100 is detachably connected to the second base 300. Therefore, during the electrode welding process of the button cell 600, there are two welding sequences, as described above. Figures 4 to 7The first welding sequence includes: the flip block 100 can be spliced ​​with the second base 300 to cover one end of the clamping hole 130, the button cell 600 can be inserted into the clamping hole 130 from the first side 110, and then the electrode is welded to the side of the button cell 600 that is not covered. Next, the first base 200 is spliced ​​with the flip block 100 to cover the other end of the clamping hole 130, the flip block 100 is flipped and the second base 300 is taken out, so that the electrode can be welded to the other side of the button cell 600. Finally, the button cell 600 that has completed the electrode welding task on the flip block 100 is taken out. The second welding sequence includes: the flip block 100 can be spliced ​​with the first base 200 to cover one end of the clamping hole 130, the button cell 600 can be inserted into the clamping hole 130 from the second side 120, and then the electrode is welded to the side of the button cell 600 that is not covered. Next, the second base 300 is spliced ​​with the flip block 100 to cover the other end of the clamping hole 130, then the flip block 100 is flipped and the first base 200 is taken out, so that the electrode can be welded to the other side of the button cell 600. Finally, the button cell 600 that has completed the electrode welding task on the flip block 100 is taken out.

[0029] Regardless of whether the first or second welding sequence is used, the button cell 600 does not need to be removed from the flipping block 100 before all welding work is completed. The button cell 600 remains within the clamping hole 130 and can be flipped as a whole with the flipping block 100, ensuring the consistent positioning of the button cell 600 before and after flipping. This guarantees product quality and effectively avoids quality problems such as inaccurate electrode welding angles and poor appearance on both sides of the button cell 600. Furthermore, the flipping block 100 can clamp multiple button cells 600 simultaneously, allowing for the simultaneous flipping of multiple button cells 600, thus improving production efficiency. Since the button cell 600 typically has a small axial thickness, the first base 200 and the second base 300 prevent the button cell 600 from detaching from the clamping hole 130 during the flipping process with the flipping block 100.

[0030] Reference Figure 1 , Figure 2 and Figure 3 According to some embodiments of this utility model, one of the flip block 100 and the first base 200 is provided with a first insertion part 210, and the other is provided with a first insertion hole 111. The first insertion part 210 is used to engage with the first insertion hole 111 to fix the first base 200 to the flip block 100. With the above configuration, the flip block 100 and the first base 200 can be quickly assembled and fixed, while ensuring that the first base 200 can be quickly removed from the flip block 100, making it convenient and simple to use.

[0031] Reference Figure 1 , Figure 2 and Figure 6According to some embodiments of this utility model, one of the flip block 100 and the second base 300 is provided with a second insertion part 310, and the other is provided with a second insertion hole 141. The flip block 100 and the second base 300 are fixed by the cooperation between the second insertion part 310 and the second insertion hole 141. With the above configuration, the flip block 100 and the second base 300 can be quickly assembled and fixed, while ensuring that the second base 300 can be quickly removed from the flip block 100, making it convenient and simple to use.

[0032] Reference Figure 1 , Figure 2 , Figure 6 According to some embodiments of the present invention, a first insertion hole 111 is formed on a first side 110, a second insertion hole 141 is formed on a third side 140 of a flip block 100, the axial direction of the second insertion hole 141 is perpendicular to the axial direction of the first insertion hole 111, a mounting part 340 is provided on the second base 300, a second insertion part 310 is provided on the mounting part 340, and the mounting part 340 is used to cooperate with the third side 140 for positioning. Therefore, if the electrode welding is performed according to the second welding sequence, when the flipping block 100 is flipped and the first base 200 is removed, the cooperation between the second insertion part 310 and the second insertion hole 141 can effectively prevent the flipping block 100 from shifting relative to the second base 300 as the first base 200 is removed. Similarly, if the electrode welding is performed according to the first welding sequence, when the flipping block 100 is flipped and the second base 300 is removed, the cooperation between the first insertion part 210 and the first insertion hole 111 can effectively prevent the flipping block 100 from shifting relative to the first base 200 as the second base 300 is removed. By adopting the above configuration, the positional influence of removing the first base 200 or the second base 300 on the flipping block 100 can be effectively avoided, further ensuring the positioning consistency of the button cell 600 before and after flipping.

[0033] According to some embodiments of the present invention, the flip block 100 is provided with a first positioning structure and a second positioning structure, the first base 200 is provided with a third positioning structure for cooperating with the first positioning structure, and the second base 300 is provided with a fourth positioning structure for cooperating with the second positioning structure. With the above configuration, the flip block 100 can be positioned by the first base 200 and the second base 300.

[0034] Reference Figures 1 to 3 , Figure 7According to some embodiments of this utility model, the first positioning structure includes a first positioning part 150 protruding from the first side 110, the first positioning part 150 being located on one side of all the clamping holes 130. The third positioning structure includes a first positioning surface 220 and a third positioning part 230. The first positioning surface 220 is disposed on the first base 200, and the third positioning part 230 protrudes from the first positioning surface 220. The first positioning surface 220 is used to abut against the side of the first positioning part 150 opposite to the second side 120, and the third positioning part 230 is used to abut against the first side 110, and the third positioning part 230 can cooperate with the first positioning part 150 for mutual positioning. With the above arrangement, the flipping block 100 and the first base 200 can be spliced ​​together and positioned, while restricting the relative sliding of the first base 200 and the flipping block 100 in the direction from the third positioning part 230 to the first positioning part 150.

[0035] Reference Figure 1 , Figure 2 and Figure 4 According to some embodiments of this utility model, the second positioning structure includes a second positioning part 160 protruding from the second side 120, the second positioning part 160 being located on one side of all the clamping holes 130. The fourth positioning structure includes a second positioning surface 320 and a fourth positioning part 330. The second positioning surface 320 is disposed on the second base 300, and the fourth positioning part 330 protrudes from the second positioning surface 320. The second positioning surface 320 is used to abut against the side of the second positioning part 160 opposite to the first side 110, and the fourth positioning part 330 is used to abut against the second side 120. The fourth positioning part 330 can cooperate with the second positioning part 160 for mutual positioning. At least one of the third positioning part 230 and the fourth positioning part 330 is provided with an electrode relief groove 232. With the above configuration, the flipping block 100 and the second base 300 can be spliced ​​together and positioned, while restricting the relative sliding of the second base 300 and the flipping block 100 in the direction from the fourth positioning part 330 to the second positioning part 160.

[0036] In the specific implementation process, if the first welding sequence is adopted, in order to ensure that the first base 200 is successfully spliced ​​onto the flip block 100, the third positioning part 230 needs to be provided with an electrode clearance groove 232 to avoid the first electrode 420 welded onto the button cell 600; if the second welding sequence is adopted, in order to ensure that the second base 300 is successfully spliced ​​onto the flip block 100, the fourth positioning part 330 needs to be provided with an electrode clearance groove 232 to avoid the second electrode 520 welded onto the button cell 600.

[0037] Reference Figure 2 , Figure 3 and Figure 7According to some embodiments of this utility model, the first positioning part 150 has a first mounting groove 151, and all the clamping holes 130 are arranged in a straight line along the first mounting groove 151. The first mounting groove 151 is used to mount the first material strip 400 connected to the first electrode 420. The second positioning part 160 has a second mounting groove 161, and all the clamping holes 130 are arranged in a straight line along the second mounting groove 161. The second mounting groove 161 is used to mount the second material strip 500 connected to the second electrode 520. With the above arrangement, the first electrode 420 and the second electrode 520 to be welded in the button cell 600 are both fed in the form of material strips, which can realize the simultaneous feeding of multiple first electrode 420s and multiple second electrode 520s, which is convenient for feeding, improves the electrode feeding speed, and thus improves production efficiency.

[0038] Reference Figure 1 In the specific implementation process, one of the first electrode 420 and the second electrode 520 is a negative electrode, and the other is a positive electrode. The first material strip 400 is provided with a plurality of first connecting parts 410 evenly spaced along its extension direction, and each first connecting part 410 is connected to the first electrode 420 at a required angle; the second material strip 500 is provided with a plurality of second connecting parts 510 evenly spaced along its extension direction, and each second connecting part 510 is connected to the second electrode 520 at a required angle.

[0039] Reference Figure 2 , Figure 4 and Figure 7 According to some embodiments of the present invention, the clamping hole 130 is connected to the first placement groove 151 through the first positioning groove 152, which is formed in the first positioning part 150. The clamping hole 130 is connected to the second placement groove 161 through the second positioning groove 162, which is formed in the second positioning part 160. The first material strip 400 is connected to the first electrode 420 through the first connecting part 410, and the first positioning groove 152 is used to position the first connecting part 410 on the first material strip 400. The second material strip 500 is connected to the second electrode 520 through the second connecting part 510, and the second positioning groove 162 is used to position the second connecting part 520 on the second material strip 500. The connecting part 510 includes a first positioning groove 152 for the first connecting part 410 on the first material strip 400 to pass through and be positioned, and a second positioning groove 162 for the second connecting part 510 on the second material strip 500 to pass through and be positioned. Thus, after the first material strip 400 is placed in the first placement groove 151, each first electrode 420 can be quickly placed in the expected position, improving welding efficiency and ensuring the accuracy of the welding angle of the first electrode 420. After the second material strip 500 is clamped into the second placement groove 161, each second electrode 520 can be quickly placed in the expected position, improving welding efficiency and ensuring the accuracy of the welding angle of the second electrode 520.

[0040] Reference Figure 1 and Figure 4 According to some embodiments of the present utility model, in order to facilitate feeding, the flipping block 100 is provided with an operation hole 170, which passes through a part of the first placement groove 151 and a part of the second placement groove 161.

[0041] Reference Figure 2 , Figure 4 and Figure 7 According to some embodiments of this utility model, the clamping hole 130 has a first limiting groove 131 and a second limiting groove 132. The first limiting groove 131 is formed in the third positioning part 230, and the second limiting groove 132 is formed in the fourth positioning part 330. The third positioning part 230 is provided with a first limiting protrusion 231 for cooperating with the first limiting groove 131, and the fourth positioning part 330 is provided with a second limiting protrusion 331 for cooperating with the second limiting groove 132. Thus, by inserting the first limiting protrusion 231 into the first limiting groove 131, the relative sliding between the first base 200 and the flipping block 100 in the length direction of the first placement groove 151 can be restricted. By inserting the second limiting protrusion 331 into the second limiting groove 132, the relative sliding between the second base 300 and the flipping block 100 in the length direction of the second placement groove 161 can be restricted.

[0042] It should be noted that in other embodiments, the first positioning structure, the second positioning structure, the third positioning structure and the fourth positioning structure described above may also adopt other configuration methods. For example, the first positioning structure is set as one end of the flip block 100 at the first side 110, the second positioning structure is set as one end of the flip block 100 at the second side 120, the third positioning structure includes a receiving groove provided on the first base 200, one end of the flip block 100 at the first side 110 can be inserted into the receiving groove, the bottom wall of the receiving groove is in contact with the first side 110, and the side wall of the receiving groove is in contact with the flip block 100, thereby realizing the positioning between the flip block 100 and the first base 200, and the fourth positioning structure includes a sliding groove provided on the second base 300, one side of the sliding groove has an inlet and outlet, and the flip block 100 slides in and out of the sliding groove from the inlet and outlet in a direction perpendicular to the second side 120.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A button cell electrode welding fixture, characterized in that, include: A flip block (100) has a first side (110) and a second side (120) opposite to each other. The flip block (100) has a plurality of clamping holes (130) extending from the first side (110) to the second side (120). The clamping holes (130) are used to clamp a button cell (600). A first base (200) is used to detachably connect with the flip block (100) and cover the clamping hole (130) at the first side (110); The second base (300) is used to detachably connect with the flip block (100) and cover the clamping hole (130) at the second side (120).

2. The button cell electrode welding fixture according to claim 1, characterized in that, The flip block (100) and the first base (200) are provided with a first insertion part (210) and a first socket (111), respectively. The first insertion part (210) is used to be inserted into the first socket (111).

3. The button cell electrode welding fixture according to claim 2, characterized in that, The flip block (100) and the second base (300) are provided with a second insertion part (310) and a second socket (141), respectively. The second insertion part (310) is used to be inserted into the second socket (141).

4. The button cell electrode welding fixture according to claim 3, characterized in that, The first insertion hole (111) is opened on the first side (110), the second insertion hole (141) is opened on the third side (140) of the flip block (100), the axial direction of the second insertion hole (141) is perpendicular to the axial direction of the first insertion hole (111), the second base (300) is provided with a mounting part (340), the second insertion part (310) is provided on the mounting part (340), and the mounting part (340) is used to cooperate with the third side (140) for positioning.

5. A button cell electrode welding fixture according to claim 1, characterized in that, The flipping block (100) is provided with a first positioning structure and a second positioning structure, the first base (200) is provided with a third positioning structure for cooperating with the first positioning structure, and the second base (300) is provided with a fourth positioning structure for cooperating with the second positioning structure.

6. A button cell electrode welding fixture according to claim 5, characterized in that, The first positioning structure includes a first positioning part (150) protruding from the first side (110), the first positioning part (150) being located on one side of all the clamping holes (130), the third positioning structure including a first positioning surface (220) and a third positioning part (230), the first positioning surface (220) being disposed on the first base (200), the third positioning part (230) protruding from the first positioning surface (220), wherein the first positioning surface (220) is used to fit against the side of the first positioning part (150) away from the second side (120), the third positioning part (230) is used to fit against the first side (110), and the third positioning part (230) can cooperate with the first positioning part (150) to limit positioning.

7. A button cell electrode welding fixture according to claim 6, characterized in that, The second positioning structure includes a second positioning part (160) protruding from the second side (120), the second positioning part (160) being located on one side of all the clamping holes (130), the fourth positioning structure including a second positioning surface (320) and a fourth positioning part (330), the second positioning surface (320) being disposed on the second base (300), the fourth positioning part (330) protruding from the second positioning surface (320), wherein the second positioning surface (320) is used to fit against the side of the second positioning part (160) away from the first side (110), the fourth positioning part (330) is used to fit against the second side (120), the fourth positioning part (330) being able to cooperate with the second positioning part (160) for limiting, and at least one of the third positioning part (230) and the fourth positioning part (330) being provided with an electrode clearance groove (232).

8. A button cell electrode welding fixture according to claim 7, characterized in that, The clamping hole (130) has a first limiting groove (131) and a second limiting groove (132). The first limiting groove (131) is formed in the third positioning part (230), and the second limiting groove (132) is formed in the fourth positioning part (330). The third positioning part (230) is provided with a first limiting protrusion (231) for cooperating with the first limiting groove (131), and the fourth positioning part (330) is provided with a second limiting protrusion (331) for cooperating with the second limiting groove (132).

9. A button cell electrode welding fixture according to claim 7, characterized in that, The first positioning part (150) has a first placement groove (151), and all the clamping holes (130) are arranged in a straight line along the first placement groove (151). The first placement groove (151) is used to place the first material strip (400) connected to the first electrode (420). The second positioning part (160) has a second placement groove (161), and all the clamping holes (130) are arranged in a straight line along the second placement groove (161). The second placement groove (161) is used to place the second material strip (500) connected to the second electrode (520).

10. A button cell electrode welding fixture according to claim 9, characterized in that, The clamping hole (130) is connected to the first placement groove (151) through the first positioning groove (152), the first positioning groove (152) is opened in the first positioning part (150), and the clamping hole (130) is connected to the second placement groove (161) through the second positioning groove (162), the second positioning groove (162) is opened in the second positioning part (160).

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