Button battery shrapnel positioning and welding method

Abstract

The present invention discloses a method for positioning and welding button battery spring clips, which is used to solve the problem of warping corners of battery spring clips on button batteries. The method specifically includes the following steps: providing a button battery and clamping the button battery; providing a negative spring clip, and operating a positioning block set on one side of the button battery; obtaining shape information and position information of the negative spring clip through a visual inspection device, and controlling the movement of the positioning block according to the information obtained to fine-tune the negative spring clip on the button battery; welding the main body of the negative spring clip to the button battery; operating the button battery to flip 180 degrees; providing a positive spring clip; obtaining shape information and position information of the positive spring clip through a visual inspection device, and controlling the movement of the positioning block according to the information obtained to fine-tune the positive spring clip on the button battery; and welding the main body of the positive spring clip to the button battery.

Description

Technical Field

[0001] The present invention relates to the field of button battery processing, and in particular to a button battery spring 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 pointed 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 pointed by the arrow T2 may be warped and deformed at the corner after the spring piece is installed on the button battery. Figure 7 As shown, direct welding will result in defective products. In addition, the spacing between the gold fingers of the positive and negative springs is also a key parameter. The current processing cannot ensure that the spacing 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 prevents the spring piece installed on the button battery from warping at the corners, so as 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 prevents the spring piece installed on the button battery from warping at the corner.

[0005] The present invention provides a method for positioning and welding button battery springs, wherein the battery springs are positive and negative, and each includes a main body and a first connecting portion and a second connecting portion connected to the main body. The first connecting portion extends radially from the button battery, and the second connecting portion extends axially from the button battery and is disposed outside the circumferential side of the button battery. The second connecting portion is provided with a gold finger. The method specifically includes the following steps:

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

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

[0008] Step 3: Obtain the morphological and positional information of the negative electrode spring 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 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, install the first connecting portion of the positive electrode spring on the positioning block, buckle the second connecting portion of the positive electrode spring on the circumferential side of the button battery, and attach the main body of the positive electrode spring to the rear side of the button battery;

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

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

[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 turns 180°.

[0023] Compared with the prior art, using the button battery shrapnel positioning and welding method of the present invention, 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, it controls the movement of the positioning block. 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 present invention is a process flow chart of the button battery spring positioning and welding method.

[0025] Figure 2-4 This is a top view of the three-dimensional image after the positive and negative springs are welded to the button battery.

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

[0027] Figure 6 This is a three-dimensional diagram of the shrapnel normally installed on the button battery.

[0028] Figure 7 This is a three-dimensional image of the corners of a button battery that are warped after the spring clip is installed on it. DETAILED DESCRIPTION

[0029] In order to explain the technical content and structural features of the present invention in detail, the following is a further description in conjunction with the embodiments 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 spring includes a positive spring 02 and a negative spring 03. The button battery spring positioning and welding method of the present invention is used to correctly install the positive spring 02 and the negative spring 03 on the button battery 01, and ultimately accurately weld the positive spring 02 and the negative spring 03 to the button battery 01. The positive spring 02 and the negative spring 03 each include a main body and a first connecting portion and a second connecting portion connected to the main body. The first connecting portion extends radially from the button battery, and the second connecting portion extends axially and is disposed outside the circumferential side of the button battery. The second connecting portion 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 03. Operate a positioning block 10 on one side of the button battery 01. Install the first connecting portion 032 of the negative electrode spring 03 on the positioning block 10. Attach the second connecting portion 033 of the negative electrode spring 03 to the circumferential side of the button battery 01. Attach the main body 031 of the negative electrode spring 03 to the front side of the button battery 01.

[0034] Step 3: Obtain the shape and position information of the negative electrode spring 03 through the visual inspection device 20, and control the positioning block 10 to move according to the obtained information, so as to fine-tune the negative electrode spring 03 on the button battery 01, so that the negative electrode spring 03 is correctly installed on the button battery 01, avoiding the corner from 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: Turn button battery 01 180°;

[0037] Step 6: Provide a positive electrode spring 02. Install the first connecting portion 022 of the positive electrode spring 02 on the positioning block 10. Attach the second connecting portion 023 of the positive electrode spring 02 to the circumferential side of the button battery 01. Attach the main body 021 of the positive electrode spring 02 to the rear side of the button battery 01.

[0038] Step 7: Obtain the shape and position information of the positive electrode spring piece 02 through the visual inspection device 20, and control the positioning block 10 to move according to the obtained information, so as to fine-tune the positive electrode spring piece 02 on the button battery 01, so that the positive electrode spring piece 02 is correctly installed on the button battery 01, avoiding the corner from being lifted, 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. 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. The product obtained after the positive electrode spring piece 02 and the negative electrode spring piece 03 are respectively welded to the button battery 01 meets the processing standards.

[0041] It is also worth noting that after the first connecting portion 032 of the negative electrode spring 03 is installed on the positioning block 10, the negative electrode spring 03 has been preliminarily positioned. Therefore, by subsequently controlling the positioning block 10 to move and fine-tune the negative electrode spring 03 based on the information obtained by the visual inspection device 20, the negative electrode spring 03 can be accurately installed on the button battery 01. Similarly, after the first connecting portion 022 of the positive electrode spring 02 is installed on the positioning block 10, the positive electrode spring 02 has been preliminarily positioned. Therefore, by subsequently controlling the positioning block 10 to move and fine-tune the positive electrode spring 02 based on the information obtained by the visual inspection device 20, the positive electrode spring 02 can be accurately installed on the button battery 01. The fine-tuning referred to above refers to adjustments of relatively small displacement or rotation, which is well known in the art and can be achieved. When the visual inspection device 20 obtains the morphological information and position information of the positive spring piece 02 and the negative spring piece 03 and at least one of them is unqualified, it controls the movement of the positioning block 10. 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 left-right translation of the positioning block 10 drives the positive and negative spring clips 02 and 03 to perform fine adjustments on the button battery 01. Since only the positive and negative spring clips 02 and 03 need to be fine-tuned, the left-right translation of the positioning block 10 drives the positive and negative spring clips 02 and 03 to perform fine adjustments.

[0043] Furthermore, the first connecting portion 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 connecting portion 032 is reliably and stably connected to the positioning block 10, and the first connecting portion 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 connecting portion 022 is reliably and stably connected to the positioning block 10.

[0044] Specifically, positioning pins 11 are provided on both the front and rear sides of the positioning block 10. A positioning hole is defined in the first connection portion 022 of the positive electrode spring clip 02. The first connection portion 022 of the positive electrode spring clip 02 is attached to the positioning block 10 by inserting its positioning hole into the positioning pin 11. The first connection portion 032 of the negative electrode spring clip 03 is also defined in a positioning hole. The first connection portion 032 of the negative electrode spring clip 03 is attached to the positioning block 10 by inserting its positioning hole into the positioning pin 11. Once the positioning hole is inserted into the positioning pin 11, the first connection portion 022 can be reliably and stably positioned in the positioning block 10. Once the positioning hole is inserted into the positioning pin 11, the first connection portion 032 can be reliably and stably positioned in 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 scanning the shape of the second connecting portion 033 of the negative electrode spring 03. The shape of the second connecting portion 033 directly reflects whether the negative electrode spring 03 has corner lift. Therefore, by scanning the shape of the second connecting portion 033, it is possible to determine whether the negative electrode spring 03 has corner lift. The visual inspection device 20 obtains the positional information of the negative electrode spring 03 by scanning the distance between the gold finger 034 of the negative electrode spring 03 and the center of the button battery 01 (this 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 (this distance is marked as B). If the shape of the second connecting portion 033 has corner lift or at least one of the distances A and B does not meet the standard, it indicates that the negative electrode spring 03 needs to be fine-tuned to ensure that the negative electrode spring 03 is properly 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 electrode spring 02 by obtaining the morphology of the second connecting portion 023 of the positive electrode spring 02 through image scanning. The morphology of the second connecting portion 023 directly reflects whether the positive electrode spring 02 has corner warping, so by obtaining the morphology of the second connecting portion 023 through image scanning, it is possible to know whether the positive electrode spring 02 has corner warping. The visual inspection device 20 obtains the position information of the positive electrode spring 02, including the distance between the gold finger 024 of the positive electrode spring 02 and the center of the button battery 01 (this distance is marked as C) obtained through image scanning, and the distance between the gold finger 024 of the positive electrode spring 02 and the rear side of the button battery 01 (this distance is marked as D), and the distance between the gold finger 024 of the positive electrode spring 02 and the gold finger 034 of the negative electrode spring 03 (this 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 02 needs to be fine-tuned so that the positive electrode spring 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 an openable and closable clamping device 30. 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 closer to 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 jointly clamp the button battery 01. When the movable clamping jaw 32 moves away from the fixed clamping jaw 31, the clamping of the button battery 01 is released. The positioning block 10 rotates synchronously with the button battery 01 when the button battery 01 rotates 180°. 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 connecting portion 023 and the second connecting portion 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 solution can be used to arrange the visual inspection device 20. However, it should be noted that the following solution is only for the purpose of illustrating that the technical solution adopted by the visual inspection device 20 is feasible and achievable, and does not limit the visual inspection device 20 to be the only technical solution. 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 connecting portion 023 and the second connecting portion 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 jaw 32 moves away from the fixed jaw 31. Figure 1b As shown, the manipulator grabs a button battery 01 and puts it into the clamping device 30, and the mobile clamping claw 32 moves closer to the fixed clamping claw 31, and the mobile clamping claw 32 and the fixed clamping claw 31 clamp the button battery 01 together. Figure 1c As shown, a negative spring clip 03 is provided, a positioning block 10 is operated and set on one side of the button battery 01, the positioning hole of the first connecting portion 032 of the negative spring clip 03 is inserted into the positioning pin 11, the second connecting portion 033 of the negative spring clip 03 is buckled onto the circumferential side of the button battery 01, and the main body 031 of the negative spring clip 03 is attached to the front side of the button battery 01. Figure 1d As shown, the morphological and positional information of the negative electrode spring 03 is obtained through the visual inspection device 20, and the positioning block 10 is controlled to move according to the obtained information (preferably, translation in the direction indicated by the arrow K, but not limited thereto), so that the negative electrode spring 03 is fine-tuned on the button battery 01, so that the negative electrode spring 03 is correctly installed on the button battery 01, avoiding the corner from warping, and allowing the gold finger 034 to reach the specified position. Then, the main body 031 of the negative electrode spring 03 is welded to the button battery 01. Figure 1eAs shown, the button battery 01 is flipped 180°, and the positioning block 10 is also flipped 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. The second connecting portion 023 of the positive spring 02 is buckled onto 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 visual inspection device 20 obtains the morphological and positional information of the positive electrode spring 02, and controls the movement of the positioning block 10 based on the acquired information (preferably, but not limited to, translation in the direction indicated by arrow K), so that the negative electrode spring 03 is fine-tuned on the button battery 01, ensuring that the negative electrode spring 03 is correctly installed on the button battery 01, avoiding corner warping, allowing the gold finger 024 to reach the specified position, and ensuring that the spacing between gold finger 024 and gold finger 034 meets the processing requirements. The main body 021 of the positive electrode spring 02 is then welded to the button battery 01. The clamping device 30 is opened, and the robot removes the welded button battery 01.

[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 released from the positioning pin 11 .

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

Claims

1. A method for positioning and welding button battery springs, wherein the battery springs are positive and negative, 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 radially from the button battery, and the second connecting portion extends axially from the button battery and is disposed outside the circumferential side 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 electrode spring is provided, and a positioning block is provided on one side of the button battery. The first connecting portion of the negative electrode spring is mounted on the positioning block, the second connecting portion of the negative electrode spring is buckled onto the circumferential side of the button battery, and the main body of the negative electrode spring is attached to the front side of the button battery; Obtaining the morphological information and position information of the negative electrode spring piece through a visual inspection device, and controlling the movement of the positioning block according to the acquired information to fine-tune the negative electrode spring piece 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 electrode spring, install the first connecting portion of the positive electrode spring on the positioning block, fasten the second connecting portion of the positive electrode spring to the circumferential side of the button battery, and attach the main body of the positive electrode spring to the rear side of the button battery; Obtaining the shape and position information of the positive electrode spring piece through a visual inspection device, and controlling the movement of the positioning block according to the acquired information to fine-tune the positive electrode spring piece 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 movement of the positioning block when at least one of the morphological information and position information of the positive and negative spring pieces 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 spring piece and the negative spring piece 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 connecting portion of the negative electrode spring piece is mounted on the positioning block by means of an insert card, and the first connecting portion of the positive electrode spring piece is mounted on the positioning block by means of an insert 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 button battery spring positioning and welding method according to claim 1, characterized in that: 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.

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 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.

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. 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 synchronously flipped along with the button battery when the button battery flips 180°.

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