Electronic component welding device

Abstract

The utility model relates to an electronic component welding device. The electronic component welding device comprises a rack, the middle part of the rack is fixedly connected with a motor; the output end of the motor is fixedly connected with a gear; the rack is positioned between the motor and the gear; the inner side wall of the rack is slidably connected with a pair of racks. The pair of racks are symmetrically arranged; the rack and the gear are in meshing transmission; the middle part of the rack is fixedly connected with a pressing plate; an air cylinder is fixedly connected to the top of the rack; a welding gun is mounted at the output end of the air cylinder; the rack is located between the air cylinder and the welding gun. A workbench is fixedly connected to the bottom of the inner side wall of the rack. The pressing plate and the workbench are connected in a sliding mode. Through the structure, the pair of pressing plates can get close to each other along with the rack and extrude the flexible circuit board, so that the device can fix the flexible circuit boards of different sizes and specifications, and the adaptability and flexibility of the device for welding and fixing the flexible circuit boards of different sizes and models are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible printed circuits, in particular to an electronic component welding device. Background Art

[0002] A flexible printed circuit board is a circuit board made of a flexible substrate, usually with a polyimide (PI) film or a polyester film as the substrate, having high flexibility, bendability and plasticity. It can adapt to the requirements of devices with different shapes and sizes and is widely used in electronic products such as flat-panel TVs, smart phones, wearable devices, etc.

[0003] The processing process of flexible printed circuit boards mainly includes the following steps: material selection, conductive layer preparation, circuit pattern formation, process treatment, component mounting, welding, quality inspection, function testing, cleaning and drying, packaging and shipping.

[0004] When welding existing flexible printed circuit boards, it is usually necessary to fix the flexible printed circuit board. It is found in production and observation that the sizes of flexible printed circuit boards are diverse. When fixing flexible printed circuit boards of different sizes, it is necessary to replace the fixing device, which will make the flexible printed circuit board welding work more complicated and increase the working time required for flexible printed circuit board welding.

[0005] Therefore, an electronic component welding device is proposed for the above problems. Summary of the Utility Model

[0006] For this reason, the technical problem to be solved by the utility model is to overcome the problem that the fixing device needs to be replaced when fixing flexible printed circuit boards of different sizes in the prior art.

[0007] To solve the above technical problem, the utility model provides an electronic component welding device, including a frame; a motor is fixedly connected to the middle of the frame; a gear is fixedly connected to the output end of the motor; the frame is located between the motor and the gear; a pair of racks are slidably connected to the inner side wall of the frame; the pair of racks are symmetrically arranged; the racks and the gear are in meshing transmission; a pressing plate is fixedly connected to the middle of the rack; a cylinder is fixedly connected to the top of the frame; a welding torch is installed at the output end of the cylinder; the frame is located between the cylinder and the welding torch; a workbench is fixedly connected to the bottom of the inner side wall of the frame; the pressing plate and the workbench are both slidably connected; through the above structure, a pair of pressing plates will approach each other along with the racks and press the flexible printed circuit board, so that the device can fix flexible printed circuit boards of different sizes and different specifications, improving the adaptability and flexibility of the device for welding and fixing flexible printed circuit boards of different sizes and different models.

[0008] In one embodiment of the utility model, a plurality of connecting rods are fixedly connected to the middle part of the pressure plate; a plurality of elastic wires are fixedly connected between adjacent connecting rods; through the above structure, the elastic wires will contact and squeeze the curved part of the surface of the flexible circuit board, thereby increasing the contact area between the pressure plate and the flexible circuit board and improving the stability of the flexible circuit board during welding. At the same time, the elastic wires will disperse the stress on the surface of the flexible circuit board and reduce the damage to the flexible circuit board when it is squeezed.

[0009] In one embodiment of the utility model, a plurality of sliding rods are slidably connected to the middle part of the connecting rod; a spring is fixedly connected to the end of the sliding rod; the spring and the connecting rod are both fixedly connected; through the above structure, the sliding rod will squeeze the surface of the flexible circuit board under the elastic force of the spring, further increasing the contact area between the device and the flexible circuit board, and at the same time, the sliding rod will flatten the area on the surface of the flexible circuit board that is bent due to squeezing, reducing the deformation of the surface of the flexible circuit board caused by squeezing.

[0010] In one embodiment of the utility model, the end of the sliding rod is rotatably connected to a rotating wheel; the rotating wheel is located at the bottom of the connecting rod; through the above structure, the rotating wheel will rotate under the action of friction, so that the sliding friction between the sliding rod and the flexible circuit board is converted into rolling friction, thereby reducing the friction between the flexible circuit board and the sliding rod, and reducing the scratches left on the surface of the flexible circuit board due to friction.

[0011] In one embodiment of the utility model, a connecting plate is fixedly connected to the middle of the welding gun; a plurality of guide plates are fixedly connected to the middle of the connecting plate; the guide plate is a micro L-shaped structure; through the above structure, the smoke will diffuse along the surface of the guide plate and away from the welding gun, reducing the smoke particles remaining on the surface of the welding gun.

[0012] In one embodiment of the utility model, a perforated plate is fixedly connected to the top of the connecting plate; the perforated plate is located inside an adjacent guide plate; through the above structure, the perforated plate will intercept particles in the smoke, further reduce impurities attached to the surface of the welding gun, and improve the convenience of the device for cleaning the welding gun.

[0013] In one embodiment of the utility model, the orifice plate includes a first arc plate and a second arc plate; a fixing groove is opened in the middle of the first arc plate; a protrusion is fixedly connected to the middle of the second arc plate; the protrusion and the fixing groove are correspondingly arranged and slidingly matched; through the above structure, when the orifice plate needs to be replaced, a pulling force can be applied to the second arc plate so that the second arc plate with the protrusion is separated from the fixing groove, thereby realizing rapid disassembly of the orifice plate and improving the convenience of replacing and cleaning the orifice plate.

[0014] In an embodiment of the present utility model, a first magnet is fixedly connected to the end of the bump; a second magnet is fixedly connected to the inner side wall of the fixing groove; the first magnet and the second magnet are correspondingly arranged; through the above structure, when installing the hole plate, the first magnet will be subjected to the suction force applied by the second magnet, making the connection between the bump and the fixing groove tighter and improving the structural stability of the hole plate during operation.

[0015] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0016] 1. For an electronic component welding device of the present utility model, a pair of pressing plates will approach each other together with the rack and press the flexible circuit board, enabling the device to fix flexible circuit boards of different sizes and specifications, and improving the adaptability and flexibility of the device for welding and fixing flexible circuit boards of different sizes and models.

[0017] 2. For an electronic component welding device of the present utility model, the elastic wire will contact and press the bent part of the surface of the flexible circuit board, increasing the contact area between the pressing plate and the flexible circuit board, improving the stability of the flexible circuit board during welding, and at the same time, the elastic wire will disperse the stress on the surface of the flexible circuit board and reduce the damage suffered by the flexible circuit board when being pressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in conjunction with the drawings.

[0019] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 is a structural schematic diagram of the pressing plate in the present utility model;

[0021] Figure 3 is a structural schematic diagram of the connecting rod in the present utility model;

[0022] Figure 4 is a structural schematic diagram of the guiding plate in the present utility model;

[0023] Figure 5 is a structural schematic diagram of the bump in the present utility model.

[0024] Description of the reference numerals in the drawings: 1. Frame; 12. Motor; 13. Gear; 14. Rack; 15. Pressing plate; 16. Cylinder; 17. Welding torch; 18. Workbench; 2. Connecting rod; 22. Elastic wire; 3. Slide bar; 32. Spring; 4. Runner; 5. Connecting plate; 52. Guide plate; 6. Orifice plate; 7. First arc plate; 72. Second arc plate; 73. Protrusion; 74. Fixed groove; 8. First magnet; 82. Second magnet. Detailed implementation manners

[0025] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited are not intended to limit the present utility model.

[0026] Refer to Figures 1 to 5 As shown, an electronic component welding device of the present utility model includes a frame 1; a motor 12 is fixedly connected to the middle of the frame 1; an output end of the motor 12 is fixedly connected to a gear 13; the frame 1 is located between the motor 12 and the gear 13; a pair of racks 14 are slidably connected to an inner side wall of the frame 1; the pair of racks 14 are symmetrically arranged; the racks 14 and the gear 13 are in meshing transmission; a pressing plate 15 is fixedly connected to the middle of the rack 14; a cylinder 16 is fixedly connected to the top of the frame 1; a welding torch 17 is installed at an output end of the cylinder 16; the frame 1 is located between the cylinder 16 and the welding torch 17; a workbench 18 is fixedly connected to the bottom of the inner side wall of the frame 1; the pressing plate 15 and the workbench 18 are both slidably connected; during work, after placing a flexible circuit board on the surface of the workbench 18, start the motor 12, the motor 12 will drive the gear 13 to rotate, when the gear 13 rotates, it will mesh with a pair of racks 14 to make the pair of racks 14 approach each other, when the racks 14 move, they will drive the pressing plate 15 to move together, when the pressing plate 15 moves, it will approach the flexible circuit board and press the flexible circuit board, at this time the flexible circuit board will be fixed by the device, then the cylinder 16 will be started to make the welding torch 17 approach the flexible circuit board, when the welding torch 17 moves to a suitable distance, it will weld the surface of the flexible circuit board, after the welding is completed, the motor 12 can be reversed to release the fixation of the pressing plate 15 on the flexible circuit board; the pair of pressing plates 15 will approach each other together with the racks 14 and press the flexible circuit board, so that the device can fix flexible circuit boards of different sizes and different specifications, improving the adaptability and flexibility of the device for welding and fixing flexible circuit boards of different sizes and different models.

[0027] Refer to Figure 2 and Figure 3As shown, a plurality of connecting rods 2 are fixedly connected to the middle of the pressing plate 15; a plurality of elastic wires 22 are fixedly connected between adjacent connecting rods 2; when the pressing plate 15 moves, it will drive the connecting rods 2 and the elastic wires 22 to approach the flexible circuit board together. When the pressing plate 15 presses the flexible circuit board, it will cause the edge part of the flexible circuit board to bend or the original bent part on the surface of the flexible circuit board. At this time, the bent part of the flexible circuit board will come into contact with the elastic wire 22 and squeeze the elastic wire 22. The elastic wire 22 will deform under the action of pressure, and then the elastic wire 22 will limit the flexible circuit board under the action of its own elastic force. At the same time, because the elastic wire 22 is a flexible material, the elastic wire 22 will reduce the damage caused to the flexible circuit board by extrusion; the elastic wire 22 will come into contact with the bent part on the surface of the flexible circuit board and squeeze it, increasing the contact area between the pressing plate 15 and the flexible circuit board, improving the stability of the flexible circuit board during welding. At the same time, the elastic wire 22 will disperse the stress on the surface of the flexible circuit board and reduce the damage suffered by the flexible circuit board when it is squeezed.

[0028] Referring to Figure 3 As shown, a plurality of sliding rods 3 are slidably connected to the middle of the connecting rod 2; a spring 32 is fixedly connected to the end of the sliding rod 3; the spring 32 and the connecting rod 2 are also fixedly connected; when the bent part on the surface of the flexible circuit board comes into contact with the connecting rod 2, it will also come into contact with the sliding rod 3. The sliding rod 3 will slide along the connecting rod 2 under the extrusion of the flexible circuit board and make the spring 32 in a stretched state. Then, the sliding rod 3 will press the surface of the flexible circuit board under the elastic force of the spring 32, further increasing the contact area between the device and the flexible circuit board. At the same time, the sliding rod 3 will flatten the area on the surface of the flexible circuit board that is bent due to extrusion, reducing the deformation caused to the surface of the flexible circuit board by extrusion.

[0029] Referring to Figure 3 As shown, a runner 4 is rotatably connected to the end of the sliding rod 3; the runner 4 is located at the bottom of the connecting rod 2; when the sliding rod 3 comes into contact with the flexible circuit board, the runner 4 will also come into contact with the flexible circuit board. The runner 4 will rotate under the action of friction, converting the sliding friction between the sliding rod 3 and the flexible circuit board into rolling friction, reducing the scratches left on the surface of the flexible circuit board due to friction.

[0030] Referring to Figure 4 As shown, a connecting plate 5 is fixedly connected to the middle of the welding torch 17; a plurality of guiding plates 52 are fixedly connected to the middle of the connecting plate 5; the guiding plate 52 is of a micro L-shaped structure; when the welding torch 17 welds the flexible circuit board, smoke will be generated, and these smokes will diffuse and reach the surfaces of the connecting plate 5 and the guiding plate 52. Because the guiding plate 52 is of a micro L-shaped structure, the smoke will diffuse along the surface of the guiding plate 52 and move away from the welding torch 17, reducing the smoke particles remaining on the surface of the welding torch 17.

[0031] Referring to Figure 4and Figure 5 As shown, a perforated plate 6 is fixedly connected to the top of the connecting plate 5; the perforated plate 6 is located inside the adjacent guide plate 52; when the smoke is too thick, it will pass through the guide plate 52 and come into contact with the perforated plate 6, and the perforated plate 6 will intercept the particles in the smoke, further reducing the impurities attached to the surface of the welding gun 17, and improving the convenience of the device for cleaning the welding gun 17.

[0032] Reference Figure 5 As shown, the orifice plate 6 includes a first arc plate 7 and a second arc plate 72; a fixing groove 74 is opened in the middle of the first arc plate 7; a protrusion 73 is fixed to the middle of the second arc plate 72; the protrusion 73 and the fixing groove 74 are correspondingly arranged and are slidably matched; when the orifice plate 6 needs to be replaced, a pulling force can be applied to the second arc plate 72 so that the second arc plate 72 with the protrusion 73 is separated from the fixing groove 74, thereby realizing the rapid disassembly of the orifice plate 6 and improving the convenience of replacing and cleaning the orifice plate 6.

[0033] Reference Figure 5 As shown, the end of the protrusion 73 is fixedly connected to the first magnet 8; the inner side wall of the fixing groove 74 is fixedly connected to the second magnet 82; the first magnet 8 and the second magnet 82 are correspondingly arranged; when installing the orifice plate 6, the protrusion 73 can be aligned with the fixing groove 74 to send the second arc plate 72 to the first arc plate 7, and when the protrusion 73 moves, it will move with the first magnet 8 and change the distance between the first magnet 8 and the second magnet 82, and the first magnet 8 will be affected by the suction force exerted by the second magnet 82, so that the connection between the protrusion 73 and the fixing groove 74 is tighter, thereby improving the structural stability of the orifice plate 6 when it is working.

[0034] Working principle: After placing the flexible circuit board on the surface of the workbench 18, start the motor 12, and the motor 12 will drive the gear 13 to rotate. When the gear 13 rotates, it will mesh with a pair of racks 14 so that the pair of racks 14 are close to each other. When the racks 14 move, they will move with the pressure plate 15. When the pressure plate 15 moves, it will approach the flexible circuit board and squeeze the flexible circuit board. At this time, the flexible circuit board will be fixed by the device, and then the cylinder 16 will start and make the welding gun 17 approach the flexible circuit board. When the welding gun 17 moves to a suitable distance, it will weld the surface of the flexible circuit board. After the welding is completed, the motor 12 can be reversed to release the fixation of the pressure plate 15 on the flexible circuit board; when the pressure plate 15 moves, it will bring the connecting rod 2 and the elastic wire 22 to the flexible circuit board When the flexible circuit board is close to each other, the pressure plate 15 squeezes the flexible circuit board, which will cause the edge of the flexible circuit board or the original curved part of the surface of the flexible circuit board to bend. At this time, the curved part of the flexible circuit board will come into contact with the elastic wire 22 and squeeze the elastic wire 22. The elastic wire 22 will be deformed under the action of pressure, and then the elastic wire 22 will limit the flexible circuit board under the action of its own elastic force. At the same time, because the elastic wire 22 is a flexible material, the elastic wire 22 will reduce the damage of the flexible circuit board caused by squeezing; when the curved part of the surface of the flexible circuit board comes into contact with the connecting rod 2, it will also come into contact with the sliding rod 3. The sliding rod 3 will slide along the connecting rod 2 under the squeezing action of the flexible circuit board and put the spring 32 in a stretched state, and then the sliding rod 3 The surface of the flexible circuit board will be squeezed under the elastic force of the spring 32, further increasing the contact area between the device and the flexible circuit board. At the same time, the slide bar 3 will flatten the area on the surface of the flexible circuit board that is bent due to squeezing. When the slide bar 3 contacts the flexible circuit board, the rotating wheel 4 will also contact the flexible circuit board. The rotating wheel 4 will rotate under the action of friction, so that the sliding friction between the slide bar 3 and the flexible circuit board is converted into rolling friction, reducing the friction between the flexible circuit board and the slide bar 3. When the welding gun 17 welds the flexible circuit board, smoke will be generated, and the smoke will diffuse and reach the surface of the connecting plate 5 and the guide plate 52. Because the guide plate 52 is a micro-L-shaped structure, the smoke will diffuse along the surface of the guide plate 52 and away from the welding gun. 17; when the smoke is too thick, it will pass through the guide plate 52 and come into contact with the orifice plate 6, and the orifice plate 6 will intercept the particles in the smoke, further reducing the impurities attached to the surface of the welding gun 17; when the orifice plate 6 needs to be replaced, a pulling force can be applied to the second arc plate 72 so that the second arc plate 72 and the protrusion 73 are separated from the inside of the fixing groove 74, thereby realizing the rapid disassembly of the orifice plate 6; when the orifice plate 6 is installed, the protrusion 73 can be aligned with the fixing groove 74 to send the second arc plate 72 to the first arc plate 7, and when the protrusion 73 moves, it will move with the first magnet 8 and change the distance between the first magnet 8 and the second magnet 82, and the first magnet 8 will be subjected to the suction force applied by the second magnet 82, so that the connection between the protrusion 73 and the fixing groove 74 is tighter.

[0035] Obviously, the above embodiments are merely examples for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or alterations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or alterations derived therefrom still fall within the protection scope of this utility model creation.

Claims

1. An electronic component welding device, comprising a frame (1), characterized in that: A motor (12) is fixedly connected to the middle of the frame (1); a gear (13) is fixedly connected to the output end of the motor (12); the frame (1) is located between the motor (12) and the gear (13); a pair of racks (14) are slidably connected to the inner wall of the frame (1); the pair of racks (14) are symmetrically arranged; the racks (14) and the gear (13) are meshingly driven; a pressing plate (15) is fixedly connected to the middle of the rack (14); a cylinder (16) is fixedly connected to the top of the frame (1); a welding gun (17) is installed at the output end of the cylinder (16); the frame (1) is located between the cylinder (16) and the welding gun (17); a workbench (18) is fixedly connected to the bottom of the inner wall of the frame (1); the pressing plate (15) and the workbench (18) are both slidably connected.

2. An electronic component welding device according to claim 1, characterized in that: A plurality of connecting rods (2) are fixedly connected to the middle of the pressing plate (15); and a plurality of elastic wires (22) are fixedly connected between adjacent connecting rods (2).

3. An electronic component welding device according to claim 2, characterized in that: A plurality of sliding rods (3) are slidably connected to the middle of the connecting rod (2); springs (32) are fixedly connected to the ends of the sliding rods (3); and the springs (32) and the connecting rod (2) are both in a fixed connection relationship.

4. An electronic component welding device according to claim 3, characterized in that: The end of the sliding rod (3) is rotatably connected to a rotating wheel (4); the rotating wheel (4) is located at the bottom of the connecting rod (2).

5. The electronic component welding device according to claim 4, characterized in that: A connecting plate (5) is fixedly connected to the middle of the welding gun (17); a plurality of guide plates (52) are fixedly connected to the middle of the connecting plate (5); and the guide plates (52) are of a micro L-shaped structure.

6. An electronic component welding device according to claim 5, characterized in that: A perforated plate (6) is fixedly connected to the top of the connecting plate (5); the perforated plate (6) is located inside the adjacent guide plate (52).

7. An electronic component welding device according to claim 6, characterized in that: The orifice plate (6) comprises a first arc-shaped plate (7) and a second arc-shaped plate (72); a fixing groove (74) is provided in the middle of the first arc-shaped plate (7); a convex block (73) is fixedly connected to the middle of the second arc-shaped plate (72); the convex block (73) and the fixing groove (74) are arranged correspondingly and are slidably matched.

8. An electronic component welding device according to claim 7, characterized in that: A first magnet (8) is fixedly connected to the end of the protrusion (73); a second magnet (82) is fixedly connected to the inner wall of the fixing groove (74); and the first magnet (8) and the second magnet (82) are arranged correspondingly.

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