A novel laser spot-welded nickel strip support

Abstract

This utility model provides a novel laser spot welding nickel strip support, belonging to the technical field of laser welding equipment. The support includes a fixed support, a fine-tuning mechanism, a cylinder, a pad, and a nickel strip clamping mechanism. The fine-tuning mechanism includes a fine-tuning screw, a screw fixing block, and a fine-tuning top block. The fine-tuning top block is located at the rear end of the fixed support. The screw fixing block has a threaded hole, through which the fine-tuning screw passes and is threadedly connected to the screw fixing block. This added fine-tuning mechanism enables precise forward and backward displacement adjustment of the support in the horizontal direction, improving the adjustment accuracy of the support in the horizontal direction and thus improving the welding quality. The nickel strip clamping mechanism includes a nickel strip pressure plate and an intermediate connecting component. The nickel strip pressure plate is located at the center of the bottom side of the cylinder, ensuring the force balance of the nickel strip pressure plate and ensuring complete and tight contact between the nickel strip and the PCBA contact piece, providing stable clamping force for spot welding and improving the weld quality.

Description

Technical Field

[0001] This utility model relates to the field of laser welding equipment technology, and in particular to a novel laser spot welding nickel strip support. Background Technology

[0002] The laser spot welding nickel strip support is used in the spot welding process of an automatic nickel strip feeding laser spot welding machine. During spot welding, the support presses the nickel strip firmly, ensuring that the nickel strip is in close contact with the surface to be welded, preventing the nickel strip from floating up and creating gaps during the spot welding process, thus preventing weak spot welds and improving the stability of the spot welding process.

[0003] Currently, common laser spot welding brackets primarily perform a pressing operation between PCBA contact plates and nickel strips, followed by laser spot welding at the pressed area. Existing technologies have the following shortcomings: Generally, a cylinder drives a nickel strip pressure plate to press the PCBA contact plates and nickel strips together. However, because the force center of this structure is offset from the cylinder's center point, the nickel strip pressure plate is prone to shifting during pressing, resulting in tilting and preventing the nickel strip from fully and tightly adhering to the PCBA contact plates. Furthermore, existing bracket structures lack fine-tuning mechanisms, making it difficult to guarantee the horizontal adjustment accuracy of the bracket, resulting in poor adjustment precision. These problems lead to low final spot welding quality. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a novel laser spot welding nickel strip support to improve the quality and stability of spot welding.

[0005] This utility model provides a novel laser spot welding nickel strip support, including a fixed support, a fine adjustment mechanism, a cylinder, a pad, and a nickel strip pressing mechanism. One side of the pad is connected to the front end of the fixed support, and the other side of the pad is connected to the side wall of the cylinder. The nickel strip pressing mechanism is connected to the cylinder, and the fine adjustment mechanism is located at the rear end of the fixed support.

[0006] The fine-tuning mechanism includes a fine-tuning screw, a screw fixing block, and a fine-tuning top block. The fine-tuning top block is located at the rear end of the fixed bracket. The screw fixing block has a threaded hole, through which the fine-tuning screw passes and is threadedly connected to the screw fixing block. The fine-tuning screw can contact the fine-tuning top block.

[0007] Preferably, the nickel strip pressing mechanism includes a nickel strip pressure plate and an intermediate connecting component, wherein the nickel strip pressure plate is connected to the cylinder through the intermediate connecting component.

[0008] Preferably, the nickel strip pressure plate is located at the center of the bottom side of the cylinder, and the central axis of the nickel strip pressure plate coincides with the central axis of the piston of the cylinder.

[0009] Preferably, the intermediate connecting component has an L-shaped structure, and the intermediate connecting component includes a horizontal part and a vertical part. The nickel strip pressure plate is connected to the cylinder through the horizontal part, and the vertical part is provided with a sliding groove.

[0010] Preferably, a slide rail is fixedly provided on the side wall of the cylinder.

[0011] Preferably, the front end of the fixed bracket is provided with a first fixing groove; the two sides of the pad are respectively provided with a first step and a second fixing groove; the side wall of the cylinder is provided with a second step; the first step is engaged in the first fixing groove, and the second step is engaged in the second fixing groove.

[0012] Preferably, the fixing bracket and the pad are fixedly connected by screws, and the pad is fixedly connected to the cylinder by screws.

[0013] Preferably, the cylinder includes a first cylinder and a second cylinder, wherein the push rod of the first cylinder is connected to the nickel strip pressing mechanism; and the push rod of the second cylinder is connected to the nickel strip pressing mechanism through a cylinder connecting plate.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1) By adding a fine-tuning structure, the fine-tuning mechanism controls the back-and-forth movement of the fine-tuning screw, thereby achieving precise back-and-forth displacement adjustment of the bracket in the horizontal direction, improving the adjustment accuracy of the bracket in the horizontal direction. Through position fine-tuning, the nickel strip pressure plate can accurately align and press the nickel strip and the PCBA contact piece to be spot welded, reducing spot welding defects caused by positioning deviation and improving the welding quality.

[0016] 2) By designing the nickel strip pressure plate at the center of the bottom of one side of the cylinder, the force application point of the nickel strip pressure plate coincides with the output center point of the cylinder, ensuring the force balance of the nickel strip pressure plate and preventing the nickel strip pressure plate from shifting or tilting due to uneven force. This ensures that the nickel strip and the PCBA contact piece are completely and tightly attached, providing a stable clamping force for spot welding and improving the quality of the solder joint.

[0017] 3) By adding a slide rail design, the nickel strip pressure plate remains stable during the up-and-down movement, avoiding wobbling and improving the stability of the bracket during the up-and-down movement. The addition of a fixed groove and step structure design ensures that the cylinder maintains stable horizontal movement during fine-tuning operations, effectively improving vertical consistency, reducing welding quality instability caused by cylinder position changes, and improving the reliability of spot welding. Attached Figure Description

[0018] Figure 1 This is a perspective view of a novel laser spot welding nickel strip support according to an embodiment of the present invention;

[0019] Figure 2 This is a perspective view of a novel laser spot welding nickel strip support according to an embodiment of the present invention;

[0020] Figure 3 This is a top view of a novel laser spot welding nickel strip support according to an embodiment of the present invention;

[0021] Explanation of reference numerals in the attached drawings: 1. Fixed bracket; 2. Pad block; 3. First cylinder; 4. Nickel strip pressure plate; 5. Intermediate connecting component; 6. Slide rail; 7. Fine-tuning screw; 8. Screw fixing block; 9. Fine-tuning top block; 10. Slide groove; 11. First fixing groove; 12. Second fixing groove; 13. Second cylinder; 14. Cylinder connecting plate. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, the various features in each embodiment can be combined with each other. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example 1

[0026] Combination Figures 1-3 This embodiment provides a novel laser spot welding nickel strip support, including a fixed support 1, a fine adjustment mechanism, a cylinder, a pad 2, and a nickel strip pressing mechanism. One side of the pad 2 is fixedly connected to the front end of the fixed support 1; the other side of the pad 2 is fixedly connected to the side wall of the cylinder. The nickel strip pressing mechanism is connected to the cylinder, and the fine adjustment mechanism is located at the rear end of the fixed support 1.

[0027] The fine-tuning mechanism includes a fine-tuning screw 7, a screw fixing block 8, and a fine-tuning top block 9. The fine-tuning top block 9 is fixedly installed at the rear end of the fixed bracket 1. A threaded hole is opened at the center of the screw fixing block 8. The fine-tuning screw 7 passes through the threaded hole and is threadedly connected to the screw fixing block 8. The fine-tuning screw 7 can contact the fine-tuning top block 9.

[0028] The fine-tuning mechanism controls the forward and backward movement of the fine-tuning screw 7, thereby achieving precise forward and backward displacement adjustment of the bracket in the horizontal direction. The specific working process of the fine-tuning mechanism is as follows: When the fine-tuning screw 7 is rotated clockwise, due to the threaded engagement between the screw 7 and the screw fixing block 8, the screw 7 moves forward axially. The screw 7 presses against the fine-tuning top block 9. Since the fine-tuning top block 9 is connected to the rear end of the fixed bracket 1, it pushes the fixed bracket 1 forward synchronously. When the preset fine-tuning position is reached, the rotation of the fine-tuning screw 7 stops, achieving precise forward displacement adjustment of the entire bracket in the horizontal direction. When the fine-tuning screw 7 is rotated counterclockwise, it moves backward axially, gradually increasing the distance from the bracket until the preset fine-tuning position is reached. Then, external force is applied to move the fixed bracket 1 backward until the fine-tuning screw 7 presses against the fine-tuning top block 9, achieving precise backward displacement adjustment of the entire bracket in the horizontal direction.

[0029] The fine-tuning precision can be adjusted by controlling the tooth pitch of the fine-tuning screw 7. The closer the tooth pitch, the shorter the straight-line distance that the fine-tuning screw 7 travels forward or backward at the same rotation angle, which allows for more precise control of the movement distance of the fine-tuning screw 7, thereby achieving fine adjustment of the bracket position.

[0030] In some preferred embodiments, the nickel strip clamping mechanism includes a nickel strip clamping plate 4 and an intermediate connecting component 5. The nickel strip clamping plate 4 is connected to the cylinder through the intermediate connecting component 5. The nickel strip clamping plate 4 is located at the center of the bottom side of the cylinder. The central axis of the nickel strip clamping plate 4 coincides with the central axis of the piston of the cylinder, so that the force application point of the nickel strip clamping plate 4 coincides with the center point of the thrust output by the cylinder piston. The thrust output by the cylinder piston acts evenly on the plate, ensuring the force balance of the nickel strip clamping plate 4. This effectively prevents the nickel strip from deforming or shifting due to uneven force, thereby ensuring that the nickel strip and the PCBA contact piece are completely and tightly bonded, providing a stable clamping force for spot welding and improving the quality of the solder joint.

[0031] In some preferred embodiments, a slide rail 6 is fixedly provided on the side wall of the cylinder. The intermediate connecting component 5 has an L-shaped structure, including a horizontal part and a vertical part. The nickel strip pressure plate 4 is connected to the cylinder through the horizontal part, and the vertical part is provided with a groove 10. The cylinder cooperates with the groove 10 of the vertical part through the slide rail 6, and the cylinder can smoothly push the intermediate connecting component 5 to slide up and down along the direction of the slide rail 6. This structural design ensures that the nickel strip pressure plate 4 does not wobble when moving up and down, and improves the stability of the bracket during the up and down movement process.

[0032] In some preferred embodiments, the front end of the fixed bracket 1 is provided with a first fixing groove 11; the two sides of the pad block 2 are respectively provided with a first step and a second fixing groove 12; the side wall of the cylinder is provided with a second step; the first step is tightly engaged in the first fixing groove 11; and the second step is tightly engaged in the second fixing groove 12. Through the structural design of the fixing groove and the step, the cylinder can always maintain stable horizontal movement when performing back and forth fine adjustment operations, effectively improving the consistency in the vertical direction and reducing the problem of unstable welding quality caused by cylinder position changes.

[0033] In some preferred embodiments, as a specific implementation, the fixed bracket 1 and the pad 2 can be fixedly connected by screws; the pad 2 and the cylinder can be fixedly connected by screws; the slide rail 6 can be fixedly installed on the side wall of the cylinder by screws; the nickel strip pressure plate 4 and the intermediate connecting component 5 can be fixedly connected by screws; the nickel strip pressure plate 4 can be connected to the intermediate connecting component 5 by screws; the intermediate connecting component 5 can be connected to the cylinder by screws.

[0034] In some preferred embodiments, the cylinder includes a first cylinder 3 and a second cylinder 13. The push rod of the first cylinder 3 is connected to the nickel strip pressing mechanism; the push rod of the second cylinder 13 is connected to the nickel strip pressing mechanism through a cylinder connecting plate 14. Specifically, the cylinder includes a first cylinder 3 and a second cylinder 13. The push rod of the first cylinder 3 is connected to the intermediate connecting component 5 of the nickel strip pressing mechanism, and the push rod of the second cylinder 13 is connected to the intermediate connecting component 5 of the nickel strip pressing mechanism through a cylinder connecting plate 14. The first cylinder 3 is used to press the front end of the nickel strip and control the nickel strip pressing plate 4 to move the nickel strip pressing plate 4 up and down. The second cylinder 13 is used to press the rear end of the nickel strip to prevent the nickel strip from swinging left and right. Both the first cylinder 3 and the second cylinder 13 are operated by controlling the push rod with air pressure.

[0035] Before laser spot welding, the working process of using this utility model to laser spot weld nickel strip supports is as follows:

[0036] Positioning the spot welding: Place the nickel strip to be welded and the PCBA contact piece under the new laser spot welding nickel strip bracket. According to the actual size and position requirements of the nickel strip and PCBA contact piece, use the fine adjustment structure on the bracket to make precise adjustments in the horizontal direction so that the nickel strip pressure plate of the bracket can accurately align and press the spot welding position between the nickel strip and the PCBA contact piece.

[0037] Pressing operation: After the spot welding position is positioned, the cylinder is activated, and the nickel strip pressure plate descends under the cylinder's drive. The added slide rail design ensures that the nickel strip pressure plate remains stable during the descent and does not wobble. During pressing, because the nickel strip pressure plate is designed to be located at the center of the bottom side of the cylinder, the force application point of the nickel strip pressure plate coincides with the center point of the cylinder's output, ensuring the force balance of the nickel strip pressure plate. This ensures that the nickel strip and the PCBA contact piece are completely and tightly bonded, creating favorable conditions for subsequent high-quality laser spot welding.

[0038] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A novel laser spot-welding nickel strip support, characterized in that: It includes a fixed bracket, a fine-tuning mechanism, a cylinder, a pad, and a nickel strip pressing mechanism. One side of the pad is connected to the front end of the fixed bracket, and the other side of the pad is connected to the side wall of the cylinder. The nickel strip pressing mechanism is connected to the cylinder, and the fine-tuning mechanism is located at the rear end of the fixed bracket. The fine-tuning mechanism includes a fine-tuning screw, a screw fixing block, and a fine-tuning top block. The fine-tuning top block is located at the rear end of the fixed bracket. The screw fixing block has a threaded hole, through which the fine-tuning screw passes and is threadedly connected to the screw fixing block. The fine-tuning screw can contact the fine-tuning top block.

2. The novel laser spot welding nickel strip support according to claim 1, characterized in that: The nickel strip pressing mechanism includes a nickel strip pressure plate and an intermediate connecting component, wherein the nickel strip pressure plate is connected to the cylinder through the intermediate connecting component.

3. A novel laser spot welding nickel strip support according to claim 2, characterized in that: The nickel strip pressure plate is located at the center of the bottom side of the cylinder, and the central axis of the nickel strip pressure plate coincides with the central axis of the piston of the cylinder.

4. A novel laser spot welding nickel strip support according to claim 3, characterized in that: The intermediate connecting component has an L-shaped structure, including a horizontal part and a vertical part. The nickel strip pressure plate is connected to the cylinder through the horizontal part, and the vertical part is provided with a sliding groove.

5. A novel laser spot welding nickel strip support according to claim 4, characterized in that: The cylinder is fixedly provided with a slide rail on its side wall.

6. A novel laser spot welding nickel strip support according to claim 1, characterized in that: The front end of the fixed bracket is provided with a first fixing groove; the two sides of the pad are respectively provided with a first step and a second fixing groove; the side wall of the cylinder is provided with a second step; the first step is engaged in the first fixing groove, and the second step is engaged in the second fixing groove.

7. A novel laser spot welding nickel strip support according to claim 1, characterized in that: The fixed bracket is fixedly connected to the pad by screws, and the pad is fixedly connected to the cylinder by screws.

8. A novel laser spot welding nickel strip support according to claim 1, characterized in that: The cylinder includes a first cylinder and a second cylinder. The push rod of the first cylinder is connected to the nickel strip pressing mechanism; the push rod of the second cylinder is connected to the nickel strip pressing mechanism through a cylinder connecting plate.

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