Welding device for double-end welding wire

Abstract

The utility model discloses a welding device for a double-end bonding wire, which relates to the technical field of double-end bonding wires and comprises a device body, a support is connected to the bottom of the device body, a servo motor is mounted on the outer surface of the support, and first synchronizing wheels are connected to the output end of the servo motor and the top of the support. And the two first synchronous wheels are sleeved with gears. Through the arrangement of the servo motor and the winding rod, an electric wire horizontally penetrates through the top end of the winding rod and then is placed on a contact of an electronic element before wire welding, and after wire welding is completed, the output end of the servo motor enables the two first synchronizing wheels to rotate through meshing of the two gears; then the two first synchronous wheels drive the two second synchronous wheels to rotate through the two synchronous belts so as to drive the two winding rods to rotate oppositely, and the winding rods tighten the electric wire after rotating so that the welding position of the electronic element and the electric wire can be pulled; the automatic welding device is simple in structure, convenient to operate and capable of guaranteeing product quality.

Description

Technical Field

[0001] This utility model relates to the field of double-ended wire bonding technology, specifically to a device for double-ended wire bonding. Background Technology

[0002] Some electronic components require soldering power cords during production, and a dual-head wire soldering machine is specifically designed for this purpose. It features two soldering irons and a wire feeding mechanism arranged in a mirror image, enabling simultaneous soldering of two power cords. This allows for the simultaneous soldering of the positive and negative wires, or the neutral and live wires, onto the electronic component. Operation is simple and convenient. The operator first places the electronic component on the positioning fixture, aligning the component's contacts with the soldering iron. Then, the operator places the exposed end of the power cord onto the component's contacts. Finally, the operator turns on the soldering machine, causing the soldering iron and wire feeding mechanism to move downwards, bringing the soldering iron into contact with the power cord and contacts. The wire feeding mechanism delivers solder to the contacts and the top of the power cord, where the solder is melted by the heat from the soldering iron, completing the soldering process.

[0003] During the wire bonding process, impurities on the power cord or contact surface, insufficient contact pressure due to improper operation, or misalignment of the power cord placement point may result in poor wire strength after bonding. During subsequent use and transportation, the power cord may easily fall off due to external forces such as bumps and vibrations. The soldered area will appear as a white spot, making it difficult to visually inspect whether the soldering effect is good, which will affect the yield rate, increase the probability of subsequent product repairs, and some customers may even believe that there are problems with the product's quality control and may choose not to use products from the same brand in the future. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a double-head wire bonding device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-headed wire bonding welding device, comprising a device body, a bracket connected to the bottom of the device body, and a servo motor mounted on the outer surface of the bracket, a first synchronous pulley connected to the output end of the servo motor and the top of the bracket, and gears sleeved on the outside of the two first synchronous pulleys, a second synchronous pulley connected to both sides of the top of the bracket, and two synchronous belts connected between the two second synchronous pulleys and the two first synchronous pulleys respectively, and a wire winding rod connected to the top of the two second synchronous pulleys.

[0006] By adopting the above technical solution, after the wire bonding is completed, the worker turns on the servo motor. The output of the servo motor rotates two first synchronous pulleys through the meshing of two gears. Then, the two first synchronous pulleys drive two second synchronous pulleys to rotate through two synchronous belts, thereby causing the two winding rods to rotate in opposite directions. After the winding rods rotate, they tighten the wire, so that the welding position between the electronic component and the wire is subjected to tension. If the welding effect is poor, the wire will fall off; if the welding effect is good, there is no impact. Then, the output of the servo motor reverses, and through the meshing of two gears and the transmission of the first synchronous pulleys, second synchronous pulleys, and synchronous belts, the two winding rods reverse and reset. At this time, the wire can be taken out upward. During this process, because the winding rods are made of POM material, they can have a certain degree of deformation, which makes it easy to take the wire out vertically upward. Then, due to its own elasticity, the POM material returns to its original shape for the next work.

[0007] Furthermore, the two winding rods are symmetrically distributed.

[0008] By adopting the above technical solution, the two winding rods are symmetrically distributed to facilitate the simultaneous winding of two wires, so that the electronic component located between the two wires is subjected to tension, thereby testing the strength of the solder joint.

[0009] Furthermore, both of the winding rods are rotatably connected to the main body of the device.

[0010] By adopting the above technical solution, the winding rod rotates and tightens the wire, which puts tension on the soldering position between the electronic component and the wire. If the soldering effect is poor, the wire will fall off; if the soldering effect is good, there will be no effect.

[0011] Furthermore, the longitudinal section of the top of both winding rods is U-shaped, and both winding rods are made of POM material.

[0012] By adopting the above technical solution, the wire is taken out upwards. During this process, the wire reel is made of POM material, which can deform to a certain extent, making it easy to take the wire out vertically upwards. Then, due to its own elasticity, the POM material returns to its original shape and is ready for the next operation.

[0013] Furthermore, the two gears mesh with each other.

[0014] By adopting the above technical solution, the output end of the servo motor rotates two first synchronous pulleys through the meshing of two gears. Then, the two first synchronous pulleys drive two second synchronous pulleys to rotate through two synchronous belts, thereby causing the two winding rods to rotate in opposite directions.

[0015] Furthermore, a cylinder is mounted on the upper surface of the main body of the device, and the output end of the cylinder is connected to a mounting base, and a soldering iron is mounted on the mounting base. A wire frame is connected to the bottom of the mounting base, and a positioning fixture is connected to the middle of the top of the main body of the device.

[0016] By adopting the above technical solution, the worker places the electronic component on the positioning fixture, aligning the contacts of the electronic component with the soldering iron. Then, the worker horizontally passes the exposed wire end through the top of the winding rod and places it on the contact of the electronic component. Finally, the worker activates the cylinder, the soldering iron, and the external wire feeding structure. After the cylinder starts, the output end drives the mounting base to move downward, causing the soldering iron and the lead frame to move downward, so that the soldering iron contacts the wire and the contact. The external wire feeding structure delivers solder to the contacts and the top of the wire, and the lead frame guides the solder. After the soldering iron starts, it heats and melts the solder. Then, the output end of the cylinder drives the mounting base to move upward, causing the soldering iron and the lead frame to move upward. After the solder cools and solidifies, the soldering work is completed.

[0017] Furthermore, the winding rod corresponds to the positioning fixture.

[0018] By adopting the above technical solution, the staff places the electronic components on the positioning fixture so that the contacts of the electronic components correspond to the soldering iron. Then, the staff passes the exposed wire end horizontally through the top of the wire reel and places it on the contacts of the electronic components.

[0019] Furthermore, there are two soldering irons and two lead frames, and the two soldering irons and lead frames are arranged in a mirror image.

[0020] By adopting the above technical solution, two contacts and wires can be welded simultaneously, which effectively improves the efficiency of wire welding and speeds up the production process.

[0021] Furthermore, the gear is a steel gear, and the gear surface is coated with Teflon.

[0022] By adopting the above technical solution, the gears are made of steel with high strength and long service life, and the surface is coated with Teflon coating. First, it can protect the gears and prevent oxidation and rust. Second, the Teflon coating has good self-lubricating properties and its surface friction coefficient is extremely low, which effectively reduces the wear of the gears and facilitates long-term use. Moreover, no additional lubrication is required, which makes maintenance convenient.

[0023] In summary, the present invention has the following main advantages:

[0024] This invention utilizes a servo motor and a winding rod. Before wire bonding, the wire is horizontally passed through the top of the winding rod and placed on the contact point of the electronic component. After bonding, the servo motor output rotates two first synchronous pulleys via two meshing gears. These first synchronous pulleys then drive two second synchronous pulleys to rotate via two synchronous belts, causing the two winding rods to rotate in opposite directions. The rotation of the winding rods tightens the wire, applying tension to the bonding point between the electronic component and the wire. If the bonding is poor, the wire may detach; otherwise, there is no impact. Subsequently, the servo motor output reverses direction, and through the meshing of the two gears and the transmission of the first, second, and synchronous pulleys and synchronous belts, the two winding rods reverse and reset. At this point, the wire can be removed upwards. During this process, the winding rods, made of POM material, can deform to a certain extent, facilitating the vertical removal of the wire. The POM material then returns to its original shape due to its elasticity, ready for the next operation. After bonding, the system automatically detects the strength of the bond. The structure is simple, the operation is convenient, and product quality is guaranteed. Attached Figure Description

[0025] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the support structure of this utility model;

[0027] Figure 3 This is a schematic diagram of the wire reel structure of this utility model;

[0028] Figure 4 This is a schematic diagram of the servo motor structure of this utility model.

[0029] In the diagram: 1. Main body of the device; 2. Cylinder; 3. Soldering iron; 4. Wire frame; 5. Positioning fixture; 6. Bracket; 7. Winding rod; 8. Servo motor; 9. Gear; 10. First synchronous pulley; 11. Second synchronous pulley; 12. Synchronous belt; 13. Mounting base. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] The embodiments of this utility model will be described below based on its overall structure.

[0032] Example 1:

[0033] A device for double-ended wire bonding, such as Figures 1-4As shown, the device includes a main body 1, with a bracket 6 connected to the bottom of the main body 1. A servo motor 8 is mounted on the outer surface of the bracket 6. First synchronous pulleys 10 are connected to the output end of the servo motor 8 and the top of the bracket 6. Gears 9 are fitted onto the outside of each of the two first synchronous pulleys 10, and the two gears 9 mesh with each other. Second synchronous pulleys 11 are connected to both sides of the top of the bracket 6. Two synchronous belts 12 are connected between each of the two second synchronous pulleys 11 and the two first synchronous pulleys 10. A winding rod 7 is connected to the top of each of the two second synchronous pulleys 11. The two winding rods 7 are symmetrically distributed and rotatably connected to the main body 1. The longitudinal section of the top of each winding rod 7 is U-shaped. Both winding rods 7 are made of POM material. After the wire bonding is completed, the operator turns on the servo motor 8, and the output end of the servo motor 8... Two gears 9 mesh to rotate two first synchronous pulleys 10. Then, the two first synchronous pulleys 10 drive two second synchronous pulleys 11 to rotate via two synchronous belts 12, thereby causing two winding rods 7 to rotate in opposite directions. After the winding rods 7 rotate, they tighten the wire, putting tension on the solder joint between the electronic component and the wire. If the solder joint is poor, the wire will fall off; if the solder joint is good, there will be no effect. Subsequently, the output of the servo motor 8 reverses, and through the meshing of the two gears 9 and the transmission of the first synchronous pulleys 10, second synchronous pulleys 11 and synchronous belts 12, the two winding rods 7 reverse and reset. At this time, the wire can be taken out upward. During this process, since the winding rods 7 are made of POM material, they can deform to a certain extent, which makes it easy to take the wire out vertically upward. Then, due to its own elasticity, the POM material returns to its original shape and is ready for the next operation.

[0034] See Figure 1 In the above embodiment, a cylinder 2 is mounted above the outer surface of the main body 1. The output end of the cylinder 2 is connected to a mounting base 13, and a soldering iron 3 is mounted on the mounting base 13. A wire guide 4 is connected to the bottom of the mounting base 13. There are two soldering irons 3 and two wire guides 4, and the two soldering irons 3 and wire guides 4 are mirror images of each other. A positioning fixture 5 is connected to the middle of the top of the main body 1. The winding rod 7 corresponds to the positioning fixture 5. The operator places the electronic component on the positioning fixture 5 so that the contacts of the electronic component correspond to the soldering iron 3. Then the operator horizontally passes the exposed wire end through the soldering iron. The top of the coil rod 7 is then placed on the contact of the electronic component. Finally, the operator opens the cylinder 2, the soldering iron 3, and the external wire feeding structure. After the cylinder 2 is started, the output end drives the mounting base 13 to move down, causing the soldering iron 3 and the lead frame 4 to move down, so that the soldering iron 3 contacts the wire and the contact. The external wire feeding structure delivers the solder rod to the top of the contact and the wire, and the lead frame 4 guides the solder rod. After the soldering iron 3 is started, it heats and melts the solder rod. Then, the output end of the cylinder 2 drives the mounting base 13 to move up, causing the soldering iron 3 and the lead frame 4 to move up. After the solder cools and solidifies, the soldering work is completed.

[0035] Example 2:

[0036] Based on the above embodiment one, the following settings are now implemented to reduce maintenance difficulty.

[0037] See Figure 2 and Figure 4 In the above embodiment, gear 9 is a steel gear with a Teflon coating on its surface. Gear 9 is made of steel, which has high strength and long service life. The Teflon coating on its surface can protect gear 9 from oxidation and rust. In addition, the Teflon coating has good self-lubricating properties and its surface friction coefficient is extremely low, which can effectively reduce the wear of gear 9 and facilitate long-term use. Moreover, no additional lubrication is required, which makes maintenance convenient.

[0038] The implementation principle of this utility model is as follows: First, the operator places the electronic component on the positioning fixture 5 so that the contact of the electronic component corresponds to the soldering iron 3. Then, the operator passes the exposed wire end horizontally through the top of the winding rod 7 and places it on the contact of the electronic component. Finally, the operator opens the cylinder 2, the soldering iron 3 and the external wire feeding structure. After the cylinder 2 is started, the output end drives the mounting base 13 to move down, so that the soldering iron 3 and the wire frame 4 move down, so that the soldering iron 3 contacts the wire and the contact. The external wire feeding structure delivers the solder rod to the contact and the top of the wire, and the wire frame 4 guides the solder rod. After the soldering iron 3 is started, it heats and melts the solder rod. Then, the output end of the cylinder 2 drives the mounting base 13 to move up, so that the soldering iron 3 and the wire frame 4 move up. After the solder cools and solidifies, the welding work is completed.

[0039] After the wire bonding is completed, the staff turns on the servo motor 8. The output of the servo motor 8 rotates the two first synchronous pulleys 10 through the meshing of two gears 9. Then, the two first synchronous pulleys 10 drive the two second synchronous pulleys 11 to rotate through two synchronous belts 12, thereby driving the two winding rods 7 to rotate in opposite directions. After the winding rods 7 rotate, they tighten the wire, so that the soldering position between the electronic component and the wire is subjected to tension. If the soldering effect is poor, the wire will fall off. If the soldering effect is good, there will be no effect.

[0040] Then, the output of the servo motor 8 reverses, and through the meshing transmission of two gears 9 and the transmission of the first synchronous pulley 10, the second synchronous pulley 11 and the synchronous belt 12, the two winding rods 7 reverse and reset. At this time, the wire can be taken out upward. During this process, since the winding rod 7 is made of POM material, it can have a certain degree of deformation, which makes it easy to take the wire out vertically upward. Then, due to its own elasticity, POM returns to its original shape and is ready for the next work.

[0041] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A device for double-ended wire bonding, comprising a device body (1), characterized in that: The device body (1) is connected to a bracket (6) at the bottom, and a servo motor (8) is installed on the outer surface of the bracket (6). The output end of the servo motor (8) and the top of the bracket (6) are both connected to a first synchronous pulley (10), and gears (9) are sleeved on the outside of the two first synchronous pulleys (10). The top two sides of the bracket (6) are connected to second synchronous pulleys (11), and two synchronous belts (12) are connected between the two second synchronous pulleys (11) and the two first synchronous pulleys (10). A winding rod (7) is connected to the top of the two second synchronous pulleys (11).

2. The double-ended wire bonding welding device according to claim 1, characterized in that: The two winding rods (7) are symmetrically distributed.

3. The double-ended wire bonding welding device according to claim 2, characterized in that: Both of the winding rods (7) are rotatably connected to the main body (1) of the device.

4. The double-ended wire bonding welding device according to claim 3, characterized in that: The longitudinal section at the top of both winding rods (7) is "u" shaped, and both winding rods (7) are made of POM material.

5. The double-ended wire bonding welding device according to claim 1, characterized in that: The two gears (9) mesh with each other.

6. The double-ended wire bonding welding device according to claim 1, characterized in that: A cylinder (2) is mounted on the upper surface of the outer surface of the main body (1) of the device, and the output end of the cylinder (2) is connected to a mounting base (13), and an electric soldering iron (3) is mounted on the mounting base (13). A wire frame (4) is connected to the bottom of the mounting base (13), and a positioning fixture (5) is connected to the middle of the top of the main body (1).

7. The double-ended wire bonding welding device according to claim 6, characterized in that: The winding rod (7) corresponds to the positioning fixture (5).

8. The double-ended wire bonding welding device according to claim 6, characterized in that: Two soldering irons (3) and two wire guides (4) are provided, and the two soldering irons (3) and two wire guides (4) are mirror images of each other.

9. The double-ended wire bonding welding device according to claim 5, characterized in that: The gear (9) is a steel gear, and the surface of the gear (9) is coated with Teflon.

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