Protective welding equipment for circuit board production

Abstract

The invention relates to the field of circuit board welding, in particular to protective welding equipment for circuit board production, which comprises a base, a bracket, an electric fixed joint, a fixed table and a feeder, the base is fixedly connected with a bracket; the bracket is connected with a plurality of electric fixed joints; the base is fixedly connected with a plurality of fixed tables; the support is fixedly connected with a feeder used for discharging welding rods. The device further comprises a connecting plate and the like. The fixing table is connected with a connecting plate. The round holes are sucked through the cover shell, the flat cables are accurately sucked into the corresponding round holes under the suction action of the cover shell, jack alignment work before welding is completed, and the problems that due to the fact that the flat cables and the round holes are small, the flat cables cannot be accurately inserted into the corresponding round holes easily through manual operation, the phenomenon of deviation is likely to happen, and the welding quality is reduced are solved. Compared with an existing welding robot, the requirement for precision control is not high, the structure is relatively simple, maintenance is convenient, and the production cost is low.

Description

Technical Field

[0001] This invention relates to the field of circuit board welding, and more particularly to a protective welding device for circuit board production. Background Technology

[0002] In the soldering process of small circuit boards, it is usually necessary to solder external wires into holes on the circuit board. However, because both the wires and the holes on the circuit board are small, the gaps between the wires and the holes on the circuit board are also small. This makes it difficult for manual operation to accurately insert the wires into the corresponding holes on the circuit board for soldering, which can easily lead to misalignment, thereby reducing the soldering quality and reducing the soldering efficiency. Even though existing technology can automate the accurate insertion of wires into the corresponding holes on the circuit board through welding robots, such welding robots for small circuit boards are usually expensive due to the high precision control requirements, which is difficult for small factories to afford. Summary of the Invention

[0003] To overcome the shortcomings of the small gaps between wires and holes on the circuit board, which make it difficult to accurately insert wires into the corresponding holes on the circuit board for soldering and easily cause misalignment, this invention provides a protective soldering device for circuit board production.

[0004] Technical Solution: A protective welding device for circuit board production includes a base, a support, electric welding heads, a fixed platform, and a feeder. The base is fixedly connected to the support; the support is connected to several electric welding heads; the base is fixedly connected to several fixed platforms; the support is fixedly connected to a feeder for discharging welding rods; it also includes a connecting plate; the fixed platforms are connected to the connecting plate; the connecting plate is fixedly connected to several partition plates, and the partition plates are arranged in a V-shape; the fixed platform is slidably connected to several connecting blocks, and tension springs are provided between the connecting blocks and the fixed platform; all the connecting blocks are rotatably connected to a rotating rod; the fixed platform is rotatably connected to another rotating rod; each rotating rod is fixedly connected to several conveyor wheels; one of the connecting blocks is connected to a motor; the fixed platform is connected to another motor, and the output shaft of each motor is fixedly connected to a corresponding rotating rod; the support is connected to several mounting plates; each mounting plate is connected to a suction component for suctioning through circular holes opened on the circuit board body.

[0005] More preferably, the suction assembly includes an electric push rod, a housing, and a hollow tube; each mounting plate is fixedly connected to an inclined electric push rod; the telescopic end of each electric push rod is connected to a housing; and each housing is fixedly connected to a hollow tube.

[0006] More preferably, it also includes spring rods and clamping plates; each mounting plate is fixedly connected to several spring rods; the telescopic ends of several spring rods located on the same mounting plate are each fixedly connected to a clamping plate.

[0007] More preferably, it also includes a collection frame; a collection frame is fixed between each of the two mounting plates.

[0008] More preferably, the surface of the partition plate is smooth and the partition plate is provided with a blade.

[0009] More preferably, each conveyor wheel has a rough section in the middle.

[0010] More preferably, a rubber pad is provided on the side of the cover closest to the circuit board body.

[0011] More preferably, it also includes a motor; the mounting plate is rotatably connected to the bracket; the connecting plate is slidably connected to the fixed platform; the bracket is fixedly connected to the motor, and the output shaft of the motor is fixedly connected to all the mounting plates.

[0012] More preferably, a rubber section is provided on each side of each conveyor wheel.

[0013] More preferably, the telescopic end of the electric actuator is detachably connected to the housing.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention uses a cover to suction the circular hole, and the conveyor wheel conveys the cable to the left and downwards into the corresponding circular hole. The suction force generated by the cover suctioning the circular hole guides the cable to deflect towards the circular hole, thereby assisting the cable in entering the circular hole. The cover also suctions impurities and dust from the cable and the circular hole, completing the alignment and cleaning work of the insertion hole before welding. This avoids the problem that due to the small size of the cable and the circular hole, it is not easy for manual operation to accurately insert the cable into the corresponding circular hole, which easily leads to deviation, reduces welding quality, and has low welding efficiency. Compared with existing welding robots, the present invention has lower requirements for precision control, and the structure is relatively simple, easy to maintain, and has lower production costs.

[0015] By setting the surface of the separator plate to be smooth, the friction between the separator plate surface and the ribbon cable is reduced, and the wear of the ribbon cable end is reduced. At the same time, the separator plate is equipped with a blade to accurately separate and guide the ribbon cable, reducing the phenomenon of the ribbon cable getting stuck when passing through the separator plate.

[0016] When it is necessary to solder the flexible circuit board to the circuit board body, the motor is started, and the output shaft of the motor drives all the mounting plates and circuit board bodies to rotate 90 degrees, so that all the mounting plates and circuit board bodies are in a horizontal position. The electric push rod is controlled to move the cover to the position close to the contact between the flexible circuit board and the circuit board body. Then, the external air pump is started, and the cover is sucked through the hollow tube to remove dust and impurities in the contact area between the flexible circuit board and the circuit board body. Then, the connecting block is manually pulled to move the upper rotating rod and the conveyor wheel down to press down the flexible circuit board and prevent the flexible circuit board from shifting. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the protective welding equipment for circuit board production disclosed in this invention; Figure 2 This is a partial structural schematic diagram of the protective welding equipment for circuit board production disclosed in this invention; Figure 3 This is a partial structural diagram of the combination of the connecting plate, partition plate, connecting block, rotating rod, and conveying wheel disclosed in this invention; Figure 4 This is a partial structural diagram of the combination of the mounting plate, electric push rod, cover, hollow tube, spring rod, and clamping plate disclosed in this invention; Figure 5 This is a partial cross-sectional view of the housing disclosed in this invention; Figure 6 This is a diagram showing the horizontal welding state of the circuit board body and the flexible circuit board disclosed in this invention. Figure 7 This is a schematic diagram of the mounting plate in a horizontal state as disclosed in this invention; Figure 8 This is a partial view of the horizontal welding of the circuit board body and the flexible circuit board disclosed in this invention.

[0018] The above-mentioned figures include the following reference numerals: 1-base, 2-support, 3-electric welding head, 4-fixed platform, 6-circuit board body, 7-feeder, 8-welding rod, 101-connecting plate, 102-partition plate, 103-connecting block, 104-rotating rod, 105-transmitting wheel, 106-motor, 107-mounting plate, 108-electric push rod, 109-cover, 1010-hollow tube, 1011-spring rod, 1012-clamping plate, 1013-collecting frame, 201-motor, 51-ribbed cable, 52-flexible circuit board, 61-round hole, 21-blade, 11-rough part, 12-rubber part. Detailed Implementation

[0019] Although the invention may be described with respect to specific applications or industries, those skilled in the art will recognize its broader applicability. Those skilled in the art will understand that terms such as "above," "below," "upward," "downward," etc., are used to describe the drawings and not to indicate a limitation on the scope of the invention as defined by the appended claims. Any numerical designations such as "first" or "second" are merely illustrative and not intended to limit the scope of the invention in any way.

[0020] Example 1: A protective welding device for circuit board production, such as... Figures 1-8 As shown, it includes a base 1, a bracket 2, an electric welding head 3, a fixed platform 4, and a feeder 7; the base 1 is fixedly connected to the bracket 2; the bracket 2 is connected to several electric welding heads 3; the base 1 is fixedly connected to several fixed platforms 4; the bracket 2 is fixedly connected to the feeder 7. It also includes a connecting plate 101, a partition plate 102, a connecting block 103, a rotating rod 104, a conveyor wheel 105, a motor 106, a mounting plate 107, and a suction assembly; the fixed platform 4 is connected to the connecting plate 101; the connecting plate 101 is fixedly connected to several partition plates 102, and the partition plates 102 are arranged in a V-shape; the fixed platform 4 is slidably connected to two connecting blocks 103, and a tension spring is provided between the connecting blocks 103 and the fixed platform 4; all the connecting blocks 103 are rotatably connected to a rotating rod 104; the fixed platform 4 is rotatably connected to another rotating rod 104, and the two rotating rods 104 are distributed vertically; each rotating rod 104 is fixedly connected to several conveyor wheels 105; one of the connecting blocks 103 is connected to a motor 106; the fixed platform 4 is connected to another motor 106, and the output shaft of each motor 106 is fixedly connected to the corresponding rotating rod 104; the bracket 2 is connected to several mounting plates 107; each mounting plate 107 is connected to a suction assembly.

[0021] The suction assembly includes an electric push rod 108, a housing 109, and a hollow tube 1010; each mounting plate 107 is fixedly connected to an electric push rod 108, and the electric push rod 108 is inclined; each telescopic end of the electric push rod 108 is connected to a housing 109; each housing 109 is fixedly connected to a hollow tube 1010.

[0022] It also includes spring rods 1011 and clamping plates 1012; each mounting plate 107 is fixedly connected to several spring rods 1011; the telescopic ends of several spring rods 1011 located on the same mounting plate 107 are each fixedly connected to a clamping plate 1012.

[0023] It also includes a collection frame 1013; a collection frame 1013 is fixed between each of the two mounting plates 107.

[0024] The surface of the partition plate 102 is smooth, and the partition plate 102 is provided with a blade 21.

[0025] Each conveyor wheel 105 has a rough part 11 in the groove in the middle to increase the friction between the conveyor wheel 105 and the ribbon cable 51 and prevent the conveyor wheel 105 from slipping when conveying the ribbon cable 51.

[0026] A rubber pad is provided on the side of the cover 109 near the circuit board body 6. When the cover 109 moves to be close to the circuit board body 6 and sucks the circular hole 61, it increases the sealing between the cover 109 and the circuit board body 6, and at the same time protects the surface of the circuit board body 6, so as to prevent the circuit board body 6 from being worn when the cover 109 directly contacts the circuit board body 6.

[0027] To face Figure 1 The shown perspective is used to distinguish front, back, left, and right directions. In use, the external air pump is connected to the hollow tube 1010. The operator then fixes multiple circuit board bodies 6 onto corresponding vertical mounting plates 107. Next, multiple corresponding ribbon cables 51 are placed on the horizontal fixed platform 4. Then, the operator manually pulls the connecting block 103 to move the rotating rod 104 and the conveyor wheel 105 vertically, adjusting the distance between the upper and lower conveyor wheels 105. The ribbon cable 51 is then passed between the upper and lower conveyor wheels 105 and positioned in the grooves of the two conveyor wheels 105. Finally, the electric push rod 108 is controlled to move the cover 109 diagonally towards the side closest to the circuit board body 6 until the cover 109... 9 is in close contact with the circuit board body 6. At this time, the cover 109 covers the corresponding round hole 61 on the circuit board body 6. Then, the external air pump is started and the cover 109 is sucked through the hollow tube 1010 to remove dust and impurities in the contact area between the flexible circuit board 52 and the circuit board body 6. Then, the motor 106 is started and the output shaft of the motor 106 drives the upper rotating rod 104 and the conveyor wheel 105 to rotate clockwise from the front to the back view. At the same time, the lower rotating rod 104 and the conveyor wheel 105 are controlled to rotate counterclockwise from the front to the back view. Under the action of friction between the upper and lower conveyor wheels 105 and the ribbon cable 51, the ribbon cable 51 is conveyed to the left.

[0028] Simultaneously, the external air pump is activated, and the casing 109 suctions the circular hole 61. The conveyor wheel 105 conveys the cable 51 to the left and into the corresponding circular hole 61. The suction force generated by the casing 109 in suctioning the circular hole 61 guides the cable 51 to deflect towards the circular hole 61, thereby assisting the cable 51 in entering the circular hole 61. The casing 109 also suctions impurities and dust from the cable 51 and the circular hole 61, completing the alignment and cleaning work before welding. This avoids the problem that the cable 51 and the circular hole 61 are both small, making it difficult for manual operation to accurately insert the cable 51 into the corresponding circular hole 61, which easily leads to deviation, reduces welding quality, and has low welding efficiency. Compared with existing welding robots, this method has lower requirements for precision control, a relatively simple structure, is easy to maintain, and has lower production costs.

[0029] After the ribbon cable 51 is inserted into the corresponding round hole 61, the electric push rod 108 is controlled to move the cover 109 diagonally away from the circuit board body 6 until the cover 109 detaches from the circuit board body 6 and returns to the initial position. Then, the feeder 7 is controlled to feed the solder rod 8 forward so that the solder rod 8 contacts the end of the corresponding ribbon cable 51. Subsequently, the electric welding head 3 is controlled to move down to heat the area in contact with the solder rod 8, the ribbon cable 51 and the round hole 61, thereby welding the ribbon cable 51 into the round hole 61 of the circuit board body 6. During the welding process, the cover 109 is sucked away through the hollow tube 1010 to remove the welding fumes.

[0030] To accommodate circuit board bodies 6 of different sizes, two clamping plates 1012 clamp and fix the circuit board body 6 under the elastic force of spring rod 1011, thereby improving the adaptability of the present invention.

[0031] Considering that when the feeder 7 releases the solder rods 8 to cover the entire circuit board body 6, there will be excess solder rods 8 between two adjacent circuit board bodies 6 after the soldering is completed, resulting in waste, a collection frame 1013 is set on the mounting plate 107 between two adjacent circuit board bodies 6 to collect the excess solder rods 8 after soldering.

[0032] It is also considered that when the end of the ribbon cable 51 passes through the partition plate 102, it is easy to rub against the surface of the partition plate 102, causing wear on the end of the ribbon cable 51. Therefore, by setting the surface of the partition plate 102 to be smooth, the friction between the surface of the partition plate 102 and the ribbon cable 51 is reduced, and the wear on the end of the ribbon cable 51 is reduced. At the same time, the partition plate 102 is provided with a blade 21 to accurately separate and guide the ribbon cable 51, reducing the phenomenon of the ribbon cable 51 getting stuck when passing through the partition plate 102.

[0033] Example 2, based on Example 1, such as Figures 4-8As shown, it also includes a motor 201; the mounting plate 107 is rotatably connected to the bracket 2; the connecting plate 101 is slidably connected to the fixed platform 4; the bracket 2 is bolted to the motor 201, and the output shaft of the motor 201 is fixedly connected to all the mounting plates 107.

[0034] Each conveyor wheel 105 has a rubber section 12 on each side.

[0035] The telescopic end of the electric push rod 108 is detachably connected to the cover 109. When soldering the wiring 51 on the circuit board body 6 with different numbers of round holes 61, the cover 109 is disassembled and replaced so that the cover 109 covers all the round holes 61 on the circuit board body 6.

[0036] When it is necessary to solder the flexible circuit board 52 onto the circuit board body 6, the control motor 201 is started. The output shaft of the motor 201 drives all the mounting plates 107 and the circuit board body 6 to rotate 90 degrees, so that all the mounting plates 107 and the circuit board body 6 are in a horizontal position. Figure 6 As shown, next, multiple flexible circuit boards 52 are manually placed onto the corresponding fixed platform 4. Then, the connecting block 103 is manually pulled to drive the rotating rod 104 and the conveying wheel 105 to move vertically, adjusting the distance between the upper and lower conveying wheels 105. Next, the end of the flexible circuit board 52 is passed between the upper and lower conveying wheels 105 and makes contact with the conveying wheels 105. Then, the motor 106 is started, and the output shaft of the motor 106 drives the corresponding rotating rod 104 and the conveying wheel 105 to rotate. Under the action of friction between the upper and lower conveying wheels 105 and the flexible circuit board 52, the flexible circuit board 52 is conveyed to the left until the end of the flexible circuit board 52 is located at the predetermined position on the corresponding circuit board body 6. At this time, the electric push rod 108 is controlled to move the cover 109 close to the flexible circuit board 52 and the circuit board body 6. At the contact point, the external air pump is then started, and the cover 109 is suctioned through the hollow tube 1010 to remove dust and impurities from the contact area between the flexible circuit board 52 and the circuit board body 6. Next, the feeder 7 is controlled to convey the welding rod 8 forward so that the welding rod 8 contacts the end of the corresponding flexible circuit board 52. Then, the electric welding head 3 is controlled to move down to heat the contact area between the welding rod 8, the flexible circuit board 52 and the circuit board body 6, thereby welding the flexible circuit board 52 to the circuit board body 6. During the welding process, the connecting block 103 is manually pulled to move the upper rotating rod 104 and the conveying wheel 105 down to press down on the flexible circuit board 52 to prevent the flexible circuit board 52 from shifting. At the same time, the external air pump is started, and the cover 109 is suctioned through the hollow tube 1010 to remove the welding fumes.

[0037] By providing a rubber part 12 in each of the conveyor wheels 105, the rubber part 12 of the conveyor wheel 105 comes into contact with the flexible circuit board 52 when the conveyor wheel 105 is conveying the flexible circuit board 52, thereby increasing the friction between the flexible circuit board 52 and the conveyor wheel 105 and preventing slippage.

[0038] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.

Claims

1. A protective welding device for circuit board production, comprising a base (1), a support (2), electric welding heads, a fixed platform (4), and a feeder (7); the base (1) is fixedly connected to the support (2); the support (2) is connected to a plurality of electric welding heads; the base (1) is fixedly connected to a plurality of fixed platforms (4); the support (2) is fixedly connected to the feeder (7) for discharging welding rods (8); characterized in that: It also includes a connecting plate (101); a fixed platform (4) is connected to the connecting plate (101); the connecting plate (101) is fixedly connected to several partition plates (102), and the partition plates (102) are arranged in a V shape; the fixed platform (4) is slidably connected to several connecting blocks (103), and a tension spring is provided between the connecting blocks (103) and the fixed platform (4); all the connecting blocks (103) are rotatably connected to a rotating rod (104); the fixed platform (4) is rotatably connected to another rotating rod (104); Each rotating rod (104) is fixedly connected to several transmission wheels (105); one of the connecting blocks (103) is connected to a motor (106), the fixed platform (4) is connected to another motor (106), and the output shaft of each motor (106) is fixedly connected to the corresponding rotating rod (104); the bracket (2) is connected to several mounting plates (107); each mounting plate (107) is connected to a suction component for suctioning the circular hole (61) opened on the circuit board body (6).

2. The protective welding equipment for circuit board production according to claim 1, characterized in that, The suction assembly includes an electric push rod (108), a housing (109), and a hollow tube (1010); each mounting plate (107) is fixedly connected to an inclined electric push rod (108); each telescopic end of the electric push rod (108) is connected to a housing (109); each housing (109) is fixedly connected to a hollow tube (1010).

3. A protective welding device for circuit board production according to claim 1, characterized in that, It also includes spring rods (1011) and clamping plates (1012); each mounting plate (107) is fixedly connected to several spring rods (1011); the telescopic ends of several spring rods (1011) located on the same mounting plate (107) are all fixedly connected to a clamping plate (1012).

4. A protective welding device for circuit board production according to claim 1, characterized in that, It also includes a collection box (1013); a collection box (1013) is fixed between each of the two mounting plates (107).

5. A protective welding device for circuit board production according to claim 1, characterized in that, The surface of the partition plate (102) is smooth, and the partition plate (102) is provided with a blade (21).

6. A protective welding device for circuit board production according to claim 1, characterized in that, Each conveyor wheel (105) has a rough section (11) in the middle.

7. A protective welding device for circuit board production according to claim 1, characterized in that, A rubber pad is provided on the side of the cover (109) near the circuit board body (6).

8. A protective welding device for circuit board production according to claim 7, characterized in that, It also includes a motor (201); the mounting plate (107) is rotatably connected to the bracket (2); the connecting plate (101) is slidably connected to the fixed platform (4); the bracket (2) is fixedly connected to the motor (201), and the output shaft of the motor (201) is fixedly connected to all the mounting plates (107).

9. A protective welding device for circuit board production according to claim 8, characterized in that, Each conveyor wheel (105) has a rubber section (12) on each side.

10. A protective welding device for circuit board production according to claim 8, characterized in that, The telescopic end of the electric push rod (108) is detachably connected to the housing (109).

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