Button cell elastic piece positioning and welding method

Abstract

The invention discloses a method for positioning and welding a button battery elastic sheet, which is used for solving the problem of corner upwarp of the battery elastic sheet on a button battery, and specifically comprises the following steps of: providing a button battery and clamping the button battery; providing a negative electrode elastic sheet, and operating a positioning block to be arranged on one side of the button battery; the shape information and the position information of the negative elastic piece are obtained through the visual inspection device, and the positioning block is controlled to move according to the obtained information, so that the negative elastic piece is finely adjusted on the button battery; welding the main body part of the negative electrode elastic sheet to the button battery; the button battery is operated to turn over by 180 degrees; providing a positive electrode elastic sheet; the shape information and the position information of the positive electrode elastic piece are obtained through the visual inspection device, and the positioning block is controlled to move according to the obtained information, so that the positive electrode elastic piece is finely adjusted on the button battery; and welding the main body part of the positive electrode elastic sheet to the button battery.

Description

Technical Field

[0001] The invention relates to the field of button battery processing, and in particular to a button battery spring piece positioning and welding method. Background Art

[0002] Button batteries are widely used in all aspects of work and life, especially in computer motherboards, watches, calculators, Bluetooth headsets and other related products. During processing, it is necessary to weld positive and negative shrapnel on the positive and negative sides of the button battery. In order to meet the structural requirements of different terminal devices, the positive and negative shrapnel will also extend gold fingers. Figure 6 As shown in the figure, after the spring piece is correctly installed on the button battery, the place indicated by the arrow T1 will not be warped at the corner. However, due to the low precision of the incoming materials or the influence of the processing precision, the place indicated by the arrow T2 may be warped and deformed at the corner after the spring piece is installed on the button battery, such as Figure 7 As shown, direct welding will result in defective products. In addition, the distance between the gold fingers of the positive and negative springs is also a key parameter. The current processing cannot ensure that the distance between the two gold fingers meets the processing standards.

[0003] Therefore, there is an urgent need for a button battery spring piece positioning and welding method that can prevent the spring piece installed on the button battery from curling up at the corners to overcome the above-mentioned defects. Summary of the invention

[0004] The object of the present invention is to provide a button battery spring piece positioning and welding method which can prevent the spring piece installed on the button battery from warping at the corner.

[0005] The button battery shrapnel positioning and welding method provided by the present invention, the battery shrapnel is a positive electrode shrapnel and a negative electrode shrapnel, and each includes a main body and a first connecting part and a second connecting part connected to the main body, the first connecting part extends from the button battery in the radial direction of the button battery, the second connecting part extends in the axial direction of the button battery and is arranged outside the circumferential side of the button battery, and the second connecting part is provided with a gold finger, specifically comprising the following steps:

[0006] Step 1: Provide a button battery and clamp the button battery;

[0007] Step 2: Provide a negative electrode spring sheet, operate a positioning block to be set on one side of the button battery, install the first connecting portion of the negative electrode spring sheet on the positioning block, buckle the second connecting portion of the negative electrode spring sheet on the circumferential side of the button battery, and attach the main body of the negative electrode spring sheet to the front side of the button battery;

[0008] Step 3: Obtain the morphological information and position information of the negative electrode spring piece through a visual inspection device, and control the movement of the positioning block according to the acquired information to fine-tune the negative electrode spring piece on the button battery;

[0009] Step 4: Weld the main body of the negative electrode spring to the button battery;

[0010] Step 5: Flip the button battery 180°;

[0011] Step 6: Provide a positive electrode spring sheet, install the first connecting portion of the positive electrode spring sheet on the positioning block, buckle the second connecting portion of the positive electrode spring sheet on the circumferential side of the button battery, and attach the main body of the positive electrode spring sheet to the rear side of the button battery;

[0012] Step 7: Obtain the shape information and position information of the positive electrode spring piece through the visual inspection device, and control the movement of the positioning block according to the acquired information to fine-tune the positive electrode spring piece on the button battery;

[0013] Step 8: Weld the main body of the positive electrode spring to the button battery.

[0014] Preferably, the visual inspection device controls the positioning block to move when at least one of the morphological information and positional information of the positive and negative spring pieces is unqualified.

[0015] Preferably, the positioning block translates in the left-right direction to drive the positive and negative spring sheets to perform fine adjustments on the button battery.

[0016] Preferably, the first connection portion of the negative electrode spring sheet is mounted on the positioning block by means of an insertion card, and the first connection portion of the positive electrode spring sheet is mounted on the positioning block by means of an insertion card.

[0017] Preferably, the visual inspection device obtains the morphological information of the negative electrode spring piece by obtaining the morphology of the second connecting portion of the negative electrode spring piece through image scanning.

[0018] Preferably, the visual inspection device obtains the position information of the negative electrode spring by obtaining the distance between the gold finger of the negative electrode spring and the center of the button battery, and the distance between the gold finger of the negative electrode spring and the front side of the button battery through image scanning.

[0019] Preferably, the visual inspection device obtains the morphological information of the positive electrode spring piece by obtaining the morphology of the second connecting portion of the positive electrode spring piece through image scanning.

[0020] Preferably, the visual inspection device obtains the position information of the positive electrode spring, including obtaining the distance between the gold finger of the positive electrode spring and the center of the button battery through image scanning, the distance between the gold finger of the positive electrode spring and the rear side of the button battery, and the distance between the gold finger of the positive electrode spring and the gold finger of the negative electrode spring.

[0021] Preferably, the front and rear sides of the positioning block are provided with positioning pins, the first connecting portion of the positive electrode spring sheet is provided with a positioning hole, and the first connecting portion of the positive electrode spring sheet is installed on the positioning block by inserting its positioning hole into the positioning pin, and the first connecting portion of the negative electrode spring sheet is also provided with a positioning hole, and the first connecting portion of the negative electrode spring sheet is installed on the positioning block by inserting its positioning hole into the positioning pin.

[0022] Preferably, the button battery is clamped by an openable and closable clamping device, and the positioning block is turned synchronously with the button battery when the button battery is turned 180°.

[0023] Compared with the prior art, the method for positioning and welding button battery shrapnel of the present invention is used. In Step 3, the negative electrode shrapnel is correctly installed on the button battery, and in Step 7, the positive electrode shrapnel is correctly installed on the button battery. The gold finger and the gold finger both reach the specified position, and the spacing between the two meets the requirements. The product obtained after the positive electrode shrapnel and the negative electrode shrapnel are respectively welded to the button battery meets the processing standards. After the first connecting portion of the negative electrode shrapnel is installed on the positioning block, the negative electrode shrapnel has been preliminarily positioned. Therefore, after the positioning block is controlled to move according to the information obtained by the visual inspection device and the negative electrode shrapnel is fine-tuned, the negative electrode shrapnel can be accurately installed on the button battery. Similarly, after the first connecting portion of the positive electrode shrapnel is installed on the positioning block, the positive electrode shrapnel has been preliminarily positioned. Therefore, after the positioning block is controlled to move according to the information obtained by the visual inspection device and the positive electrode shrapnel is fine-tuned, the positive electrode shrapnel can be accurately installed on the button battery. When the visual inspection device obtains the morphological information and position information of the positive and negative spring pieces and at least one of them is unqualified, the positioning block is controlled to move. The movement of the positioning block drives the positive and negative spring pieces to be fine-tuned, so that the positive and negative spring pieces are finally accurately installed on the button battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figures 1a-1f The invention discloses a processing flow chart of the button battery spring piece positioning and welding method.

[0025] Figure 2-4 It is a top view of the stereogram after the positive and negative spring pieces are welded to the button battery.

[0026] Figure 5 It is a schematic structural diagram of the clamping device of the present invention cooperating with the visual inspection device.

[0027] Figure 6 It is a three-dimensional picture of the spring clip normally mounted on the button battery.

[0028] Figure 7 It is a three-dimensional picture of the corners of the shrapnel being lifted up after being installed on the button battery. DETAILED DESCRIPTION

[0029] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0030] The present invention provides a method for positioning and welding a button battery spring. Figures 2 to 4 As shown, the battery shrapnel includes a positive shrapnel 02 and a negative shrapnel 03. The button battery shrapnel positioning and welding method of the present invention is used to correctly install the positive shrapnel 02 and the negative shrapnel 03 on the button battery 01, and finally accurately weld the positive shrapnel 02 and the negative shrapnel 03 to the button battery 01. The positive shrapnel 02 and the negative shrapnel 03 both include a main body and a first connecting part and a second connecting part connected to the main body. The first connecting part extends out of the button battery along the radial direction of the button battery, and the second connecting part extends along the axial direction of the button battery and is arranged outside the circumferential side of the button battery. The second connecting part is provided with a gold finger. For the convenience of expression and understanding, different reference numerals are used to represent the structures of the positive electrode spring piece 02 and the negative electrode spring piece 03, as follows: in the positive electrode spring piece 02, the main body 021, the first connecting part 022, the second connecting part 023, and the gold finger 024; in the negative electrode spring piece 03, the main body 031, the first connecting part 032, the second connecting part 033, and the gold finger 034.

[0031] The button battery spring positioning and welding method of the present invention includes the following steps, please refer to Figures 1a-1f ,as well as Figure 5 .

[0032] Step 1: Provide a button battery 01 and clamp the button battery 01;

[0033] Step 2: Provide a negative electrode spring sheet 03, operate a positioning block 10 set on one side of the button battery 01, install the first connection portion 032 of the negative electrode spring sheet 03 on the positioning block 10, and buckle the second connection portion 033 of the negative electrode spring sheet 03 on the circumferential side of the button battery 01, and the main body 031 of the negative electrode spring sheet 03 is attached to the front side of the button battery 01;

[0034] Step 3: Obtain the shape information and position information of the negative electrode spring piece 03 through the visual inspection device 20, and control the positioning block 10 to move according to the acquired information, so that the negative electrode spring piece 03 is fine-tuned on the button battery 01, so that the negative electrode spring piece 03 is correctly installed on the button battery 01, avoiding the corner warping, and allowing the gold finger 034 to reach the specified position;

[0035] Step 4: Weld the main body 031 of the negative electrode spring 03 to the button battery 01;

[0036] Step 5: Flip button battery 01 180°;

[0037] Step 6: Provide a positive electrode spring sheet 02, install the first connection portion 022 of the positive electrode spring sheet 02 on the positioning block 10, buckle the second connection portion 023 of the positive electrode spring sheet 02 on the circumferential side of the button battery 01, and attach the main body 021 of the positive electrode spring sheet 02 to the rear side of the button battery 01;

[0038] Step 7: Obtain the shape information and position information of the positive spring piece 02 through the visual inspection device 20, and control the positioning block 10 to move according to the acquired information, so that the positive spring piece 02 is fine-tuned on the button battery 01, so that the positive spring piece 02 is correctly installed on the button battery 01, avoiding the corner warping, and allowing the gold finger 024 to reach the specified position;

[0039] Step 8: Weld the main body 021 of the positive electrode spring 02 to the button battery 01.

[0040] In the above, in Step 3, the negative electrode spring piece 03 is correctly installed on the button battery 01, and in Step 7, the positive electrode spring piece 02 is correctly installed on the button battery 01. The gold finger 034 and the gold finger 024 both reach the specified position, and the distance between the two meets the requirements. After the positive electrode spring piece 02 and the negative electrode spring piece 03 are respectively welded to the button battery 01, the product obtained meets the processing standards.

[0041] It is also worth pointing out that after the first connection portion 032 of the negative spring piece 03 is installed on the positioning block 10, the negative spring piece 03 has been preliminarily positioned. Therefore, after the positioning block 10 is controlled to move according to the information obtained by the visual inspection device 20 and the negative spring piece 03 is fine-tuned, the negative spring piece 03 can be accurately installed on the button battery 01. Similarly, after the first connection portion 022 of the positive spring piece 02 is installed on the positioning block 10, the positive spring piece 02 has been preliminarily positioned. Therefore, after the positioning block 10 is controlled to move according to the information obtained by the visual inspection device 20 and the positive spring piece 02 is fine-tuned, the positive spring piece 02 can be accurately installed on the button battery 01. The fine-tuning referred to above refers to the adjustment of the displacement and rotation amount, which is clear and achievable in the art. When the visual inspection device 20 obtains the shape information and position information of the positive spring piece 02 and the negative spring piece 03 and at least one of them is unqualified, the positioning block 10 is controlled to move. The movement of the positioning block 10 drives the positive spring piece 02 and the negative spring piece 03 to be fine-tuned, and finally the positive spring piece 02 and the negative spring piece 03 are accurately installed on the button battery 01.

[0042] Preferably, in the embodiment provided by the present invention, the translation of the positioning block 10 in the left-right direction drives the positive spring piece 02 and the negative spring piece 03 to be fine-tuned on the button battery 01. Since only the positive spring piece 02 and the negative spring piece 03 need to be fine-tuned, the left-right translation of the positioning block 10 drives the positive spring piece 02 and the negative spring piece 03 to move in the left-right direction, so that the positive spring piece 02 and the negative spring piece 03 can be fine-tuned.

[0043] Furthermore, the first connection part 032 of the negative electrode spring piece 03 is installed on the positioning block 10 by means of an insertion card, so that the first connection part 032 is reliably and stably connected to the positioning block 10, and the first connection part 022 of the positive electrode spring piece 02 is installed on the positioning block 10 by means of an insertion card, so that the first connection part 022 is reliably and stably connected to the positioning block 10.

[0044] Specifically, the front side and the rear side of the positioning block 10 are both provided with positioning pins 11, and the first connection part 022 of the positive spring piece 02 is provided with a positioning hole, and the first connection part 022 of the positive spring piece 02 is installed on the positioning block 10 by inserting its positioning hole into the positioning pin 11. The first connection part 032 of the negative spring piece 03 is also provided with a positioning hole, and the first connection part 032 of the negative spring piece 03 is installed on the positioning block 10 by inserting its positioning hole into the positioning pin 11. After the positioning hole is inserted into the positioning pin 11, the first connection part 022 can be reliably and stably positioned on the positioning block 10, and after the positioning hole is inserted into the positioning pin 11, the first connection part 032 can be reliably and stably positioned on the positioning block 10.

[0045] like Figures 1a-1f , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the visual inspection device 20 obtains the morphological information of the negative electrode spring 03 by obtaining the morphology of the second connecting portion 033 of the negative electrode spring 03 by image scanning. The morphology of the second connecting portion 033 directly reflects whether the negative electrode spring 03 has corner warping, so the morphology of the second connecting portion 033 obtained by image scanning can know whether the negative electrode spring 03 has corner warping. The visual inspection device 20 obtains the position information of the negative electrode spring 03 by obtaining the distance between the gold finger 034 of the negative electrode spring 03 and the center of the button battery 01 (the distance is marked as A) and the distance between the gold finger 034 of the negative electrode spring 03 and the front side of the button battery 01 (the distance is marked as B). When the morphology of the second connecting portion 033 has corner warping, and at least one of the distance A and the distance B does not meet the standard, it means that the negative electrode spring 03 needs to be fine-tuned so that the negative electrode spring 03 can be correctly installed on the button battery 01.

[0046] like Figures 1a-1f , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the visual inspection device 20 obtains the morphological information of the positive spring piece 02 by obtaining the morphology of the second connecting portion 023 of the positive spring piece 02 by image scanning. The morphology of the second connecting portion 023 directly reflects whether the positive spring piece 02 has corner lift, so by obtaining the morphology of the second connecting portion 023 by image scanning, it is possible to know whether the positive spring piece 02 has corner lift. The visual inspection device 20 obtains the position information of the positive spring piece 02 by image scanning, including the distance between the gold finger 024 of the positive spring piece 02 and the center of the button battery 01 (the distance is marked as C), the distance between the gold finger 024 of the positive spring piece 02 and the rear side of the button battery 01 (the distance is marked as D), and the distance between the gold finger 024 of the positive spring piece 02 and the gold finger 034 of the negative spring piece 03 (the distance is marked as E). When the second connection portion 023 has a raised corner and at least one of the distance C and the distance D does not meet the standard, it indicates that the positive electrode spring sheet 02 needs to be fine-tuned so that the positive electrode spring sheet 02 is correctly installed on the button battery 01 .

[0047] like Figures 1a-1f , Figure 5 As shown, the button battery 01 is clamped by a clamping device 30 that can be opened and closed. Preferably, the clamping device 30 includes a fixed clamping jaw 31 and a movable clamping jaw 32. The movable clamping jaw 32 can move away from or approach the fixed clamping jaw 31. When the movable clamping jaw 32 moves closer to the fixed clamping jaw 31, the movable clamping jaw 32 and the fixed clamping jaw 31 clamp the button battery 01 together. When the movable clamping jaw 32 moves away from the fixed clamping jaw 31, the clamping of the button battery 01 is released. When the button battery 01 is turned over 180°, the positioning block 10 is turned over synchronously with the button battery 01. Preferably, the clamping device 30 and the positioning block 10 can be installed on the same structure.

[0048] like Figure 5As shown, since the visual inspection device 20 needs to obtain the shape of the second connection part 023 and the second connection part 033 by image scanning, and needs to obtain the distances A, B, C, D, and E by image scanning, it is more conducive to the implementation of the solution to take images of the required parts from two directions. For example, the following scheme can be used to arrange the visual inspection device 20, but it should be noted that the following scheme is only to illustrate that the technical solution adopted by the visual inspection device 20 is feasible and can be implemented, and it is not limited to the only technical solution that the visual inspection device 20 can adopt. Specifically, the visual inspection device 20 includes a first visual inspection unit 21 and a second visual inspection unit 22, the first visual inspection unit 21 and the second visual inspection unit 22 are respectively arranged on both sides of the clamping device 30, and the first visual inspection unit 21 and the second visual inspection unit 22 are arranged in a roughly orthogonal form, the first visual inspection unit 21 obtains the distances A, B, C, D, and E by image scanning, and the second visual inspection unit 22 obtains the shape of the second connection part 023 and the second connection part 033 by image scanning.

[0049] The following briefly introduces the entire processing process of the button battery spring positioning and welding method of the present invention: Figure 1a As shown, the clamping device 30 is opened, and the movable clamping jaw 32 is translated away from the fixed clamping jaw 31. Figure 1b As shown, the robot grabs a button battery 01 and puts it into the clamping device 30, and the mobile clamping jaw 32 moves close to the fixed clamping jaw 31, and the mobile clamping jaw 32 and the fixed clamping jaw 31 clamp the button battery 01 together. Figure 1c As shown, a negative spring sheet 03 is provided, a positioning block 10 is operated and arranged on one side of a button battery 01, the positioning hole of the first connecting portion 032 of the negative spring sheet 03 is inserted into the positioning pin 11, the second connecting portion 033 of the negative spring sheet 03 is buckled on the circumferential side of the button battery 01, and the main body 031 of the negative spring sheet 03 is attached to the front side of the button battery 01. Figure 1d As shown, the shape information and position information of the negative spring piece 03 are obtained through the visual inspection device 20, and the positioning block 10 is controlled to move according to the obtained information (preferably in the direction indicated by the arrow K, but not limited thereto), so that the negative spring piece 03 is fine-tuned on the button battery 01, so that the negative spring piece 03 is correctly installed on the button battery 01, and the corners are prevented from warping, and the gold finger 034 reaches the specified position. Then the main body 031 of the negative spring piece 03 is welded to the button battery 01. Figure 1eAs shown, the button battery 01 is turned 180°, and the positioning block 10 is also turned 180° synchronously. A positive spring 02 is provided, and the positioning hole of the first connecting portion 022 of the positive spring 02 is inserted into the positioning pin 11, and the second connecting portion 023 of the positive spring 02 is buckled on the circumferential side of the button battery 01, and the main body 021 of the positive spring 02 is attached to the rear side of the button battery 01. Figure 1f As shown, the shape information and position information of the positive spring piece 02 are obtained through the visual inspection device 20, and the positioning block 10 is controlled to move according to the information obtained (preferably in the direction indicated by the arrow K, but not limited thereto), so that the negative spring piece 03 is fine-tuned on the button battery 01, so that the negative spring piece 03 is correctly installed on the button battery 01, and the corners are prevented from warping, so that the gold finger 024 reaches the specified position, and the distance between the gold finger 024 and the gold finger 034 meets the processing requirements. Then, the main body 021 of the positive spring piece 02 is welded to the button battery 01. The clamping device 30 is opened, and the robot takes away the button battery 01 that has been welded.

[0050] It should also be noted that after the main body 031 of the negative electrode spring 03 is welded to the front side of the button battery 01 , the positioning hole of the first connecting portion 032 of the negative electrode spring 03 is disengaged from the positioning pin 11 .

[0051] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A method for positioning and welding a button battery spring sheet, wherein the battery spring sheet is a positive spring sheet and a negative spring sheet, and each comprises a main body and a first connecting portion and a second connecting portion connected to the main body, wherein the first connecting portion extends from the button battery in a radial direction of the button battery, and the second connecting portion extends in an axial direction of the button battery and is arranged outside the circumferential side surface of the button battery, and the second connecting portion is provided with a gold finger, characterized in that: The button battery spring positioning and welding method comprises the following steps: Providing a button battery and clamping the button battery; A negative spring sheet is provided, a positioning block is operated to be disposed on one side of the button battery, a first connection portion of the negative spring sheet is mounted on the positioning block, a second connection portion of the negative spring sheet is buckled on the circumferential side of the button battery, and a main body of the negative spring sheet is attached to the front side of the button battery; Acquire the morphological information and position information of the negative electrode spring piece through a visual inspection device, and control the movement of the positioning block according to the acquired information, so that the negative electrode spring piece is fine-tuned on the button battery; Welding the main body of the negative electrode spring to the button battery; Operate the button battery to flip 180°; Provide a positive spring sheet, install the first connection portion of the positive spring sheet on the positioning block, buckle the second connection portion of the positive spring sheet on the circumferential side of the button battery, and attach the main body of the positive spring sheet to the rear side of the button battery; Acquire the shape information and position information of the positive electrode spring piece through a visual inspection device, and control the movement of the positioning block according to the acquired information, so that the positive electrode spring piece is fine-tuned on the button battery; The main body of the positive electrode spring is welded to the button battery.

2. The button battery spring positioning and welding method according to claim 1, characterized in that: The visual inspection device controls the positioning block to move when at least one of the morphological information and positional information of the positive electrode spring sheet and the negative electrode spring sheet is unqualified.

3. The button battery spring positioning and welding method according to claim 1, characterized in that: The positioning block translates in the left-right direction to drive the positive electrode spring sheet and the negative electrode spring sheet to perform fine adjustment on the button battery.

4. The button battery spring positioning and welding method according to claim 1, characterized in that: The first connection portion of the negative electrode spring sheet is mounted on the positioning block by means of an insertion card, and the first connection portion of the positive electrode spring sheet is mounted on the positioning block by means of an insertion card.

5. The button battery spring positioning and welding method according to claim 1, characterized in that: The visual inspection device obtains the morphological information of the negative electrode spring piece by obtaining the morphology of the second connecting portion of the negative electrode spring piece through image scanning.

6. The method for positioning and welding a button cell spring according to claim 1, characterized in that: The visual inspection device obtains the position information of the negative electrode spring by scanning the image to obtain the distance between the gold finger of the negative electrode spring and the center of the button battery, and the distance between the gold finger of the negative electrode spring and the front side of the button battery.

7. The button battery spring positioning and welding method according to claim 1, characterized in that: The visual inspection device obtains the morphological information of the positive electrode spring piece by obtaining the morphology of the second connecting portion of the positive electrode spring piece through image scanning.

8. The button battery spring positioning and welding method according to claim 1, characterized in that: The visual inspection device obtains the position information of the positive spring piece, including obtaining the distance between the gold finger of the positive spring piece and the center of the button battery, the distance between the gold finger of the positive spring piece and the rear side of the button battery, and the distance between the gold finger of the positive spring piece and the gold finger of the negative spring piece through image scanning.

9. The button battery spring positioning and welding method according to claim 1, characterized in that: The front and rear sides of the positioning block are both provided with positioning pins, the first connecting portion of the positive spring sheet is provided with a positioning hole, and the first connecting portion of the positive spring sheet is installed on the positioning block by inserting its positioning hole into the positioning pin, and the first connecting portion of the negative spring sheet is also provided with a positioning hole, and the first connecting portion of the negative spring sheet is installed on the positioning block by inserting its positioning hole into the positioning pin.

10. The button battery spring positioning and welding method according to claim 1, characterized in that: The button battery is clamped by an openable and closable clamping device, and the positioning block is turned synchronously with the button battery when the button battery is turned 180°.

Images