A PCB soldering tool

Abstract

The present invention relates to the technical field of PCB soldering, specifically to a PCB soldering tool, comprising a bottom plate with an operating hole, an operating frame located above the operating hole and a vertical slide bar located on the right side of the operating frame fixedly installed on the upper end surface of the bottom plate, and an operating mechanism is arranged on the operating frame. The function of automatically adjusting the position of the soldering hole of the PCB board without manual intervention is realized, so that the cable can be automatically transported and accurately aligned to the corresponding soldering hole, ensuring that the cable is inserted with a uniform length, thereby improving the quality of the soldering point, the consistency of electrical parameters and the mechanical stability, and completing multiple soldering points at one time through synchronous soldering technology, ensuring the uniformity of temperature and time during the soldering process, significantly improving the production efficiency of PCB soldering, and enhancing the long-term stability and reliability of the product, and this automatic soldering mode reduces the errors and deviations caused by manual operation, and at the same time reduces the safety risks of workers due to contact with high-temperature soldering equipment.

Description

Technical Field

[0001] The invention relates to the technical field of PCB soldering, in particular to a PCB soldering tool. Background Art

[0002] PCB laser soldering technology is a high-precision, high-efficiency non-contact soldering method that uses the heat energy of the laser beam to melt the solder and then accurately solder it on the pad of the PCB board (the PCB board after soldering is as follows Fig. 9 As shown in the figure, the connection between electronic components and pads is realized. When the PCB board is plugged in for wire soldering, the PCB circuit board large solder joint laser soldering technology is required to connect and solder the PCB board and the cable to accurately control the position, size and energy of the solder joint, thereby achieving high-quality connection between the PCB board and the cable, thereby ensuring the stable operation of the PCB circuit board within its expected life.

[0003] At present, there are the following disadvantages when soldering PCB boards: 1. When soldering PCB boards, workers need to hold the PCB boards and cables for soldering. Manual soldering relies on workers' experience and requires high professional skills. It is difficult to achieve extremely high precision. Manual operation will introduce errors, resulting in unstable welding quality, which will lead to poor consistency and repeatability of finished products. In addition, workers face high safety risks during operation. 2. In the process of soldering PCB boards, soldering needs to be performed one by one, and there are often a large number of solder points on the PCB board. When workers perform soldering, It takes more time, so the production efficiency is low, and the solder joints on the same PCB board may have defects such as cold soldering, false soldering, excessive or insufficient soldering, etc., which will affect the long-term reliability of the circuit; 3. When soldering, the length of each cable inserted into the solder joint on the same PCB board is different, and cables of different lengths will cause changes in resistance and inductance, thereby affecting the overall performance of the circuit, and inconsistent cable lengths will lead to uncontrollable soldering quality. Cables that are too long may cause excess soldering, and cables that are too short may cause insufficient solder joints, resulting in false soldering or cold soldering at the solder joints, affecting the reliability of the PCB board.

[0004] Therefore, in order to ensure high-quality connection between the PCB board and the cable and ensure stable operation of the PCB circuit board within its expected service life, the present invention provides a PCB soldering tool. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a PCB soldering tool, which is achieved by the following specific technical means: a PCB soldering tool, comprising a base plate with an operating hole, an operating frame located above the operating hole and a vertical sliding rod located on the right side of the operating frame fixedly installed on the upper surface of the base plate, and an operating mechanism is arranged on the operating frame; the operating mechanism comprises a main body portion arranged on the operating frame for loading the PCB board, a positioning portion for calibrating the position of the soldering hole of the PCB board is arranged on the main body, and a wire unloading portion for synchronously discharging a whole row of cables is arranged on the operating frame.

[0006] The main body is provided with a transport mechanism for transporting a whole row of cables of equal length into the welding hole; the transport mechanism includes a positioning portion provided on the main body, the positioning portion is provided with a clamping portion for cooperating with the positioning portion to synchronously clamp and position the whole row of cables, and the positioning portion is also provided with a driving portion for providing power for the positioning portion to transport the cables.

[0007] A soldering mechanism for synchronously soldering a whole row of solder joints on a PCB board is arranged on the vertical slide bar; the soldering mechanism comprises a soldering portion arranged on the vertical slide bar, the soldering portion is provided with a limiting portion for guiding the moving direction of the welding rod, and the soldering portion is also provided with a transport portion for cooperating with the limiting portion to feed the welding rod.

[0008] As a preferred technical solution of the present invention, the main body includes a connecting shaft, a placement plate, a first motor and an alignment plate. The upper end of the operating frame is equipped with a connecting shaft through a bearing, and a placement plate with a cavity inside is fixedly installed on the connecting shaft. The first motor is fixedly installed on the operating frame, and the output end of the first motor is connected to the connecting shaft through a first gear set. An alignment plate is fixedly installed on the side of the vertical sliding rod close to the placement plate.

[0009] As a preferred technical solution of the present invention, the alignment portion includes an entry plate hole, a soldering hole, a first abutment plate, a first electric push rod and a second abutment plate. The placement plate is provided with an entry plate hole connected to its cavity on the left side, and the placement plate is provided with a soldering hole located at the entry plate hole and penetrating the lower end surface of the placement plate. The first abutment plate is slidably installed on the rear side of the placement plate, a spring is provided between the first abutment plate and the rear side wall of the placement plate, a first electric push rod is fixedly installed on the front end of the placement plate, and a second abutment plate located in the placement plate and slidably connected to the placement plate is fixedly installed on the telescopic end of the first electric push rod, and the first abutment plate and the second abutment plate are both covered with a rubber layer.

[0010] As a preferred technical solution of the present invention, the wire unloading part includes a first sliding rod, a pull-out plate, a top pressure block and a telescopic spring. The rear end of the operating frame is slidably installed with a first sliding rod that is symmetrical and penetrates its rear end face. The rear ends of the left-right symmetrical first sliding rods are jointly fixedly installed with a pull-out plate. A telescopic spring mounted on the first sliding rod is fixedly installed between the pull-out plate and the rear end face of the operating frame. The front ends of the left-right symmetrical first sliding rods are jointly fixedly installed with a top pressure block.

[0011] As a preferred technical solution of the present invention, the positioning part includes a positioning block, a positioning semi-arc clamp, a limiting slide groove, a limiting slider and a first roller. The lower end surface of the placement plate is fixedly installed with a plurality of positioning blocks located on the rear side of the soldering hole in a linear array manner. A positioning semi-arc clamp for loading cables is fixedly installed at the lower end of the positioning block. A limiting slide groove is provided in the positioning block. A limiting slider is slidably installed symmetrically on the left and right sides. The front end of the limiting slider is rotatably installed with a first roller located below the soldering hole through a set rotating shaft, and the first roller is coated with a rubber layer.

[0012] As a preferred technical solution of the present invention, the clamping part includes a second motor, a first transmission shaft and a bidirectional threaded sleeve. The second motor is fixedly installed on the positioning block on the left, the output end of the second motor is fixedly connected to the first transmission shaft, and the fixed sleeve on the first transmission shaft is provided with a bidirectional threaded sleeve corresponding to the positioning block one by one. The bidirectional threaded sleeve on the same positioning block is threadedly connected to the limit slider.

[0013] As a preferred technical solution of the present invention, the driving part includes an L-shaped support plate, a second transmission shaft, a sleeve, a third transmission shaft and a third motor. An L-shaped support plate is fixedly installed on the lower end surface of one of the limit sliding blocks of the same positioning block. A second transmission shaft is installed through the L-shaped support plate via a bearing. The second transmission shaft is connected to the rotating shaft on this side via a second gear set. A sleeve is installed through the L-shaped support plate via a bearing. The sleeve is connected to the second transmission shaft via a first bevel gear set. A third motor is fixedly installed on the positioning block on the left side. A third transmission shaft is fixedly installed on the output end of the third motor. A plurality of sleeves are fixedly mounted on the third transmission shaft.

[0014] As a preferred technical solution of the present invention, the soldering part includes a second electric push rod, a support arm, a load-bearing arm, an induction welding head, a limiting cylinder and a tin wire. The support arm is slidably installed on the vertical sliding rod, and a sliding hole corresponding to the alignment plate is opened on the support arm. A second electric push rod is fixedly installed on the upper end of the vertical sliding rod with a telescopic end fixedly connected to the support arm, a load-bearing arm corresponding to the positioning block is fixedly installed at the rear end of the support arm, an induction welding head corresponding to the positioning block is fixedly installed on the support arm, a limiting cylinder with an angle formed with the induction welding head is fixedly installed on the load-bearing arm, and a tin wire is arranged in the limiting cylinder.

[0015] As a preferred technical solution of the present invention, the limiting part includes a supporting elliptical plate, a second roller, a connecting frame, a skateboard, a third roller and a bolt. The lower end of the carrying arm is fixedly installed with a left-right symmetrical supporting elliptical plate, and a front-back symmetrical second roller is installed between the left-right symmetrical supporting elliptical plates through bearings. The carrying arm is commonly provided with a connecting frame located on the upper end surface of the supporting elliptical plate, and a skateboard is installed in the connecting frame for sliding up and down. The lower end of the skateboard is installed with a third roller corresponding to the second roller on the front side through a bearing, and the upper end of the skateboard is installed with a bolt through a bearing, and the upper end of the connecting frame is threadedly connected to the bolt.

[0016] As a preferred technical solution of the present invention, the transport part includes a fourth transmission shaft, a fourth motor and a fan-shaped stop block. The fourth transmission shaft is installed in the connecting frame through a bearing, and a fourth motor whose output end is fixedly connected to the fourth transmission shaft is fixedly installed on the connecting frame. A fan-shaped stop block corresponding to the second roller on the rear side is fixedly sleeved on the fourth transmission shaft, and a rubber groove is provided on the outer arc wall of the fan-shaped stop block.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The PCB soldering tool realizes the function of automatically adjusting the position of the soldering holes of the PCB board without manual intervention through the coordinated use of the operating mechanism, the transport mechanism and the soldering mechanism, so that the cables can be automatically transported and accurately aligned to the corresponding soldering holes, ensuring that the cables are inserted with uniform lengths, thereby improving the quality of the soldering points, the consistency of electrical parameters and the mechanical stability, and completing multiple soldering points at one time through the synchronous soldering technology, ensuring the uniformity of the temperature and time of the soldering process, significantly improving the production efficiency of PCB soldering, and enhancing the long-term stability and reliability of the product, and this automated soldering mode reduces the errors and deviations caused by manual operation, while reducing the safety risks of workers due to contact with high-temperature soldering equipment.

[0018] 2. The PCB soldering tool, through the coordinated use of the operating mechanism and the soldering mechanism, only needs to put the PCB board in to automatically adjust the solder hole position of the PCB board, without the need for direct human involvement in the soldering process of the PCB board, thereby reducing errors and deviations caused by manual operation, and improving the consistency and repeatability of the PCB board quality, and can prevent workers from directly contacting high-temperature soldering equipment, providing safety for workers' operations.

[0019] 3. The PCB soldering tool can automatically transport the cables in the same row to the corresponding soldering holes through the coordinated use of the transport mechanism and the operating mechanism, so that the cables are inserted into the soldering holes of the PCB board with the same length, thereby reducing the welding defects that may occur during the welding process, improving the welding quality of the soldering points, and effectively maintaining the electrical parameters and signal integrity of the circuit, while ensuring the mechanical stability of the soldering points of the PCB board, reducing the problems of broken wires and poor contact caused by vibration or external force.

[0020] 4. The PCB soldering tool can simultaneously solder the solder holes and cables in the same row on the PCB board through the soldering mechanism, so that multiple soldering points can be completed at one time, which significantly improves the production throughput and speed. In addition, the synchronous soldering ensures the uniformity of the soldering temperature and time, so as to improve the stability and reliability of the product in long-term use, and improve the reliability and consistency of each soldering point, avoiding soldering defects caused by local overheating or overcooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention when it is working.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 3 It is a schematic diagram of a partially cutaway three-dimensional structure of a placement plate of the present invention.

[0024] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0025] Figure 5 It is a partially cutaway three-dimensional structural schematic diagram of the transport mechanism of the present invention.

[0026] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0027] Figure 7 It is a partial cross-sectional three-dimensional structural schematic diagram of the soldering mechanism of the present invention.

[0028] Figure 8 for Figure 7 Schematic diagram of the enlarged structure at point C in the middle.

[0029] Fig. 9 This is a schematic diagram of the three-dimensional structure of the PCB board after soldering.

[0030] In the figure: 1, bottom plate; 2, operating frame; 3, vertical slide bar; 4, operating mechanism; 41, main body; 411, connecting shaft; 412, placing plate; 413, first motor; 414, alignment plate; 42, alignment part; 421, plate entry hole; 422, soldering hole; 423, first abutment plate; 424, first electric push rod; 425, second abutment plate; 43, unloading part; 431, first slide bar; 432, pull-out plate; 433, top pressure block; 434, telescopic spring; 5, transportation mechanism; 51, positioning part; 511, positioning block; 512, positioning semi-arc clamp; 513, limiting slide groove; 514, limiting slide block; 515, first roller; 52, clamping part; 521, second Motor; 522, first transmission shaft; 523, bidirectional threaded sleeve; 53, driving unit; 531, L-shaped support plate; 532, second transmission shaft; 533, sliding sleeve; 534, third transmission shaft; 535, third motor; 6, soldering mechanism; 61, soldering unit; 611, second electric push rod; 612, support arm; 613, load-bearing arm; 614, induction welding head; 615, limiting cylinder; 616, tin wire; 62, limiting unit; 621, supporting elliptical plate; 622, second roller; 623, connecting frame; 624, slide plate; 625, third roller; 626, bolt; 63, transport unit; 631, fourth transmission shaft; 632, fourth motor; 633, fan-shaped stop block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1 A PCB soldering tool comprises a bottom plate 1 with an operation hole, an operation frame 2 located above the operation hole and a vertical slide bar 3 located on the right side of the operation frame 2 are fixedly mounted on the upper end surface of the bottom plate 1, and an operation mechanism 4 is arranged on the operation frame 2; the operation mechanism 4 comprises a main body 41 arranged on the operation frame 2 for loading the PCB board, a positioning part 42 for calibrating the position of the soldering hole of the PCB board is arranged on the main body 41, and a wire unloading part 43 for synchronously discharging a whole row of cables is arranged on the operation frame 2.

[0033] See also Figure 1 and Figure 2The main body 41 is provided with a transport mechanism 5 for transporting a whole row of cables of equal length into the welding hole; the transport mechanism 5 includes a positioning portion 51 provided on the main body 41, the positioning portion 51 is provided with a clamping portion 52 for cooperating with the positioning portion 51 to synchronously clamp and position the whole row of cables, and the positioning portion 51 is also provided with a driving portion 53 for providing power for the positioning portion 51 to transport the cables.

[0034] See also Figure 1 A soldering mechanism 6 for synchronously soldering a whole row of solder joints on the PCB board is provided on the vertical slide bar 3; the soldering mechanism 6 includes a soldering portion 61 provided on the vertical slide bar 3, and a limiting portion 62 for guiding the moving direction of the welding rod is provided on the soldering portion 61, and a transport portion 63 for cooperating with the limiting portion 62 to feed the welding rod is also provided on the soldering portion 61.

[0035] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The main body 41 includes a connecting shaft 411, a placement plate 412, a first motor 413 and an alignment plate 414. The connecting shaft 411 is installed on the upper end of the operating frame 2 through a bearing. A placement plate 412 with a cavity inside is fixedly installed on the connecting shaft 411. The first motor 413 is fixedly installed on the operating frame 2. The output end of the first motor 413 is connected to the connecting shaft 411 through a first gear set. An alignment plate 414 is fixedly installed on the side of the vertical slide bar 3 close to the placement plate 412.

[0036] See also Figure 1 , Figure 3 and Figure 5 The alignment portion 42 includes an entry plate hole 421, a soldering hole 422, a first push plate 423, a first electric push rod 424 and a second push plate 425. The left side of the placement plate 412 is provided with an entry plate hole 421 connected to its cavity, and the placement plate 412 is provided with a soldering hole 422 located at the entry plate hole 421 and penetrating the lower end surface of the placement plate 412. A first push plate 423 is slidably installed on the rear side of the interior of the placement plate 412, and a spring is provided between the first push plate 423 and the rear side wall of the interior of the placement plate 412. A first electric push rod 424 is fixedly installed at the front end of the placement plate 412, and a second push plate 425 located in the placement plate 412 and slidably connected to the placement plate 412 is fixedly installed at the telescopic end of the first electric push rod 424, and the first push plate 423 and the second push plate 425 are both covered with a rubber layer.

[0037] During specific work, when the PCB board needs to be soldered, the worker inserts the PCB board to be soldered into the cavity of the placement plate 412 from the board entry hole 421. At this time, the first abutment plate 423, under the action of the spring, mortgages the PCB board onto the second abutment plate 425 from the rear end, thereby correcting the position of the PCB board. At this time, the first electric push rod 424 can be started to push the PCB board backward with the second abutment plate 425 until the soldering hole position on the PCB board is moved to the soldering hole 422. The first electric push rod 424 can be stopped, thereby automatically completing the calibration of the PCB board position, thereby reducing errors and deviations caused by manual operation and preventing workers from directly contacting high-temperature welding equipment.

[0038] After the calibration of the PCB board is completed, the first motor 413 is started to rotate the connecting shaft 411 through the first gear set, thereby causing the placement plate 412 loaded with the PCB board to rotate to the right, and the first motor 413 is stopped when the placement plate 412 is rotated to be parallel to the alignment plate 414. At this time, the solder hole at the solder hole 422 on the PCB board just corresponds to the position of the alignment plate 414.

[0039] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 The positioning portion 51 includes a positioning block 511, a positioning semi-arc clamp 512, a limiting slide groove 513, a limiting slider 514 and a first roller 515. A plurality of positioning blocks 511 located at the rear side of the soldering hole 422 are fixedly installed on the lower end surface of the placement plate 412 in a linear array manner. A positioning semi-arc clamp 512 for loading cables is fixedly installed at the lower end of the positioning block 511. A limiting slide groove 513 is provided in the positioning block 511. A limiting slider 514 is slidably installed in the limiting slide groove 513 in a left-right symmetrical manner. A first roller 515 located below the soldering hole 422 is rotatably installed at the front end of the limiting slider 514 through a set rotating shaft, and the first roller 515 is coated with a rubber layer.

[0040] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 The clamping part 52 includes a second motor 521, a first transmission shaft 522 and a bidirectional threaded sleeve 523. The second motor 521 is fixedly installed on the left positioning block 511. The output end of the second motor 521 is fixedly connected to the first transmission shaft 522. The first transmission shaft 522 is fixedly sleeved with a bidirectional threaded sleeve 523 corresponding to the positioning block 511. The bidirectional threaded sleeve 523 on the same positioning block 511 is threadedly connected to the limiting slider 514.

[0041] See also Figure 1 , Figure 2 , Figure 5 and Figure 6The driving part 53 includes an L-shaped support plate 531, a second transmission shaft 532, a sleeve 533, a third transmission shaft 534 and a third motor 535. The lower end surface of one of the limit sliders 514 of the same positioning block 511 is fixedly installed with an L-shaped support plate 531, and the second transmission shaft 532 is installed through a bearing on the L-shaped support plate 531. The second transmission shaft 532 is connected to the rotating shaft on this side through a second gear set. The L-shaped support plate 531 is installed through a bearing. The sleeve 533 is connected to the second transmission shaft 532 through a first bevel gear set. The third motor 535 is fixedly installed on the left positioning block 511. The output end of the third motor 535 is fixedly sleeved with a third transmission shaft 534, and a plurality of sleeves 533 are fixedly sleeved on the third transmission shaft 534.

[0042] During specific work, after the main body 41 and the alignment part 42 cooperate to complete the movement of the PCB board, the worker can insert the cables one by one into the positioning semi-arc clamp 512, and make the upper end of the cable be located between the limit sliders 514. After the cables in the same row are loaded, start the second motor 521 to rotate the first transmission shaft 522, thereby driving the bidirectional threaded sleeve 523 to rotate and drive the limit slider 514 in the corresponding positioning block 511, so that the left and right symmetrical limit sliders 514 on this side approach each other until the two clamp the cables on this side with their respective first rollers 515, thereby synchronously clamping and positioning the cables in the same row.

[0043] Then the third motor 535 can be started to rotate the third transmission shaft 534, and the corresponding sleeve 533 in the L-shaped support plate 531 can be rotated, and the second transmission shaft 532 can be rotated with the cooperation of the first bevel gear group, and the rotating shaft is rotated by the second gear group to rotate the first roller 515. At this time, the rolling first roller 515 will synchronously transport the cables clamped by the two into the welding holes of the PCB board until the cables in the same row pass through the corresponding welding holes, and the alignment plate 414 will block the part of the cable passing through the welding hole, so that the cables can be extended into the welding holes of the PCB board with the same length, thereby reducing the welding defects that may occur during the welding process and improving the welding quality of the solder joints.

[0044] After the cables in the same row are all inserted into the soldering holes, the first motor 413 is started in reverse to reset the placement plate 412 to the operation frame 2 through the main body 41, thereby completing the assembly of the cables and soldering holes of the PCB board.

[0045] See also Figure 1 , Figure 2 , Figure 7 and Figure 8The soldering part 61 includes a second electric push rod 611, a support arm 612, a bearing arm 613, an induction welding head 614, a limiting cylinder 615 and a tin wire 616. The support arm 612 is slidably installed on the vertical slide rod 3. The support arm 612 is provided with a sliding hole corresponding to the alignment plate 414. The second electric push rod 611 whose telescopic end is fixedly connected to the support arm 612 is fixedly installed on the upper end of the vertical slide rod 3. A bearing arm 613 corresponding to the positioning block 511 is fixedly installed at the rear end of the support arm 612. An induction welding head 614 corresponding to the positioning block 511 is fixedly installed on the support arm 612. A limiting cylinder 615 with an angle between the induction welding head 614 and the bearing arm 613 is fixedly installed, and a tin wire 616 is arranged in the limiting cylinder 615.

[0046] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 The limiting part 62 includes a supporting elliptical plate 621, a second roller 622, a connecting frame 623, a slide plate 624, a third roller 625 and a bolt 626. A left-right symmetrical supporting elliptical plate 621 is fixedly installed at the lower end of the carrying arm 613. A front-back symmetrical second roller 622 is installed between the left-right symmetrical supporting elliptical plates 621 through a bearing. A connecting frame 623 located on the upper end surface of the supporting elliptical plate 621 is commonly provided on the carrying arm 613. A slide plate 624 is installed in the connecting frame 623 for sliding up and down. A third roller 625 corresponding to the second roller 622 on the front side is installed at the lower end of the slide plate 624 through a bearing. A bolt 626 is installed at the upper end of the slide plate 624 through a bearing. The upper end of the connecting frame 623 is threadedly connected to the bolt 626.

[0047] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 The transport portion 63 includes a fourth transmission shaft 631, a fourth motor 632 and a fan-shaped stop block 633. The fourth transmission shaft 631 is installed in the connecting frame 623 through a bearing. The fourth motor 632, whose output end is fixedly connected to the fourth transmission shaft 631, is fixedly installed on the connecting frame 623. A fan-shaped stop block 633 corresponding to the second roller 622 at the rear side is fixedly sleeved on the fourth transmission shaft 631, and a rubber groove is opened on the outer arc wall of the fan-shaped stop block 633.

[0048] During specific operation, after the operating mechanism 4 and the transport mechanism 5 cooperate to complete the assembly of the cables and welding holes of the PCB board, the second electric push rod 611 is started to lower the support arm 612 on the vertical slide rod 3 until the induction welding head 614 is a certain distance away from the welding hole. At this time, all the induction welding heads 614 can be started at the same time to preheat the cables in the welding holes.

[0049] At the same time, the bolt 626 will press the tin wire 616 onto the second roller 622 on the front side with the third roller 625 through the slide plate 624, so that the tin wire 616 cannot move backwards through the limiting cylinder 615 when it is not pushed. At this time, the fourth motor 632 is started to rotate the fourth transmission shaft 631, thereby rotating the fan-shaped block 633. When the fan-shaped block 633 contacts the second roller 622 on the rear side, the rubber groove on the fan-shaped block 633 will push the entire row of tin wires 616 backwards, thereby pushing the tin wire 616 out of the limiting cylinder 615 for a certain distance, and stopping the operation of the fourth motor 632. At this time, the tin wire 616 cooperates with the preheated cable to form a firm solder joint. At this time, the induction welding head 614 can be closed, so that the soldering holes and cables in the same row on the PCB board can be soldered simultaneously, so that multiple soldering points can be completed at one time, significantly improving production throughput and speed.

[0050] See also Figure 1 and Figure 2 The wire unloading part 43 includes a first slide bar 431, a pull-out plate 432, a top pressure block 433 and a telescopic spring 434. The rear end of the operating frame 2 is slidably installed with a first slide bar 431 that is symmetrical and runs through its rear end surface. The rear ends of the left-right symmetrical first slide bars 431 are fixedly installed with a pull-out plate 432. A telescopic spring 434 sleeved on the first slide bar 431 is fixedly installed between the pull-out plate 432 and the rear end surface of the operating frame 2. The front ends of the left-right symmetrical first slide bars 431 are fixedly installed with a top pressure block 433.

[0051] During specific operation, after the soldering mechanism 6 completes the soldering, the second electric push rod 611 is started in reverse to reset the support arm 612, and wait for a moment for the solder joint to solidify and form, and then the pull-out plate 432 can be pushed forward to move the top pressure block 433 forward through the first slide bar 431, so that the cables limited by the positioning semi-arc clamp 512 can be pushed out at the same time through the top pressure block 433, and then the cable lock can be released through the transportation mechanism 5, so that the PCB board after soldering can be taken out, and the subsequent PCB board soldering can continue.

[0052] Working principle: When the PCB board needs to be soldered, the worker inserts the PCB board to be soldered into the cavity of the placement plate 412 from the board entry hole 421, calibrates the position of the PCB board through the alignment part 42, and after the calibration is completed, starts the first motor 413 to align the soldering hole at the soldering hole 422 on the PCB board with the position of the alignment plate 414 through the main body 41.

[0053] Then the worker inserts the cables one by one into the positioning semi-arc clamp 512, and after the cables in the same row are loaded, the second motor 521 is started to clamp the cables on that side with the respective first rollers 515 through the positioning portion 51 and the clamping portion 52, and then the third motor 535 is started to cooperate with the positioning portion 51 through the driving portion 53 so that the cables are extended into the soldering holes of the PCB board with the same length, and after the cables in the same row are inserted into the soldering holes, the first motor 413 is started in the reverse direction so that it resets the placement plate 412 to the operating frame 2 through the main body 41, thereby completing the assembly of the cables and the soldering holes of the PCB board.

[0054] Then, the second electric push rod 611 is started to lower the support arm 612 on the vertical slide rod 3 until the induction welding head 614 is a certain distance away from the welding hole. At this time, all the induction welding heads 614 can be started at the same time to preheat the cables in the welding holes. The limiting part 62 will limit the tin wire 616. At the same time, the fourth motor 632 is started to push the limiting cylinder 615 of the entire row of tin wire 616 a certain distance through the transportation part 63. At this time, the tin wire 616 cooperates with the preheated cables to form a firm solder joint. At this time, the induction welding head 614 can be closed, so that the welding holes and cables in the same row on the PCB board can be soldered simultaneously.

[0055] After the soldering mechanism 6 completes the soldering, the second electric push rod 611 is started in reverse to reset the support arm 612, and wait for a moment for the solder joint to solidify. Then, the pull-out plate 432 can be pushed forward to push out the cables limited by the positioning semi-arc clamp 512 through the wire unloading portion 43. Then, the cable lock can be released through the transportation mechanism 5, so that the PCB board after soldering can be taken out, and the subsequent PCB board soldering can be continued.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCB soldering tool, comprising a bottom plate (1) with an operation hole, characterized in that: An operating frame (2) located above the operating hole and a vertical sliding rod (3) located on the right side of the operating frame (2) are fixedly mounted on the upper end surface of the bottom plate (1), and an operating mechanism (4) is arranged on the operating frame (2); The operating mechanism (4) comprises a main body (41) arranged on the operating frame (2) for loading a PCB board, a positioning part (42) for calibrating the position of the soldering holes of the PCB board is arranged on the main body (41), and a wire unloading part (43) for synchronously discharging a whole row of wires is arranged on the operating frame (2); The main body (41) is provided with a transport mechanism (5) for transporting a whole row of cables of equal length into the welding hole; The transport mechanism (5) comprises a positioning portion (51) arranged on the main body (41); the positioning portion (51) is provided with a clamping portion (52) for cooperating with the positioning portion (51) to synchronously clamp and position a whole row of cables; the positioning portion (51) is also provided with a driving portion (53) for providing power for the positioning portion (51) to transport the cables; A soldering mechanism (6) for synchronously soldering a whole row of solder joints on a PCB board is arranged on the vertical slide bar (3); The soldering mechanism (6) comprises a soldering portion (61) arranged on the vertical slide bar (3), the soldering portion (61) being provided with a limiting portion (62) for guiding the moving direction of the welding rod, and the soldering portion (61) being provided with a transport portion (63) for cooperating with the limiting portion (62) to feed the welding rod; The main body (41) comprises a connecting shaft (411), a placement plate (412), a first motor (413) and an alignment plate (414); the upper end of the operating frame (2) is provided with a connecting shaft (411) via a bearing; a placement plate (412) with a cavity inside is fixedly installed on the connecting shaft (411); the operating frame (2) is fixedly installed with a first motor (413); the output end of the first motor (413) is connected to the connecting shaft (411) via a first gear set; and an alignment plate (414) is fixedly installed on a side of the vertical slide bar (3) close to the placement plate (412); The alignment portion (42) comprises a plate entry hole (421), a soldering hole (422), a first abutment plate (423), a first electric push rod (424) and a second abutment plate (425); the left side of the placement plate (412) is provided with a plate entry hole (421) connected to its cavity; the placement plate (412) is provided with a soldering hole (422) located at the plate entry hole (421) and penetrating the lower end surface of the placement plate (412); the first abutment plate (423) is slidably mounted on the rear side of the placement plate (412); a spring is arranged between the first abutment plate (423) and the rear side wall of the placement plate (412); the front end of the placement plate (412) is fixedly mounted with a first electric push rod (424); the telescopic end of the first electric push rod (424) is fixedly mounted with a second abutment plate (425) located in the placement plate (412) and slidably connected to the placement plate (412); The positioning portion (51) comprises a positioning block (511), a positioning semi-arc clamp (512), a limiting slide groove (513), a limiting slider (514) and a first roller (515); a plurality of positioning blocks (511) located at the rear side of the soldering hole (422) are fixedly installed on the lower end surface of the placement plate (412) in a linear array manner; a positioning semi-arc clamp (512) for loading cables is fixedly installed at the lower end of the positioning block (511); a limiting slide groove (513) is provided in the positioning block (511); a limiting slider (514) is slidably installed in the limiting slide groove (513) and is symmetrically located on the left and right; a first roller (515) located below the soldering hole (422) is rotatably installed at the front end of the limiting slider (514) via a rotating shaft; The clamping portion (52) comprises a second motor (521), a first transmission shaft (522) and a bidirectional threaded sleeve (523); the second motor (521) is fixedly mounted on the left positioning block (511); the output end of the second motor (521) is fixedly connected to the first transmission shaft (522); a bidirectional threaded sleeve (523) corresponding to the positioning block (511) is fixedly sleeved on the first transmission shaft (522); and the bidirectional threaded sleeve (523) on the same positioning block (511) is threadedly connected to the limiting slider (514).

2. A PCB soldering tool according to claim 1, characterized in that: The wire unloading part (43) comprises a first sliding rod (431), a pull-out plate (432), a pressing block (433) and a telescopic spring (434); the first sliding rod (431) which is symmetrical on both sides and passes through the rear end surface of the operating frame (2) is slidably mounted at the rear end of the operating frame (2); the pull-out plate (432) is fixedly mounted on the rear end of the symmetrical first sliding rod (431); a telescopic spring (434) sleeved on the first sliding rod (431) is fixedly mounted between the pull-out plate (432) and the rear end surface of the operating frame (2); and the pressing block (433) is fixedly mounted on the front end of the symmetrical first sliding rod (431).

3. A PCB soldering tool according to claim 1, characterized in that: The driving part (53) comprises an L-shaped support plate (531), a second transmission shaft (532), a sliding sleeve (533), a third transmission shaft (534) and a third motor (535); an L-shaped support plate (531) is fixedly mounted on the lower end surface of one of the limit sliders (514) of the same positioning block (511); a second transmission shaft (532) is installed through the L-shaped support plate (531) via a bearing; the second transmission shaft (532) is connected to the rotating shaft on the side via a second gear set; a sliding sleeve (533) is installed through the L-shaped support plate (531) via a bearing; the sliding sleeve (533) is connected to the second transmission shaft (532) via a first bevel gear set; a third motor (535) is fixedly mounted on the left positioning block (511); a third transmission shaft (534) is fixedly sleeved on the output end of the third motor (535); and a plurality of sliding sleeves (533) are fixedly sleeved on the third transmission shaft (534).

4. A PCB soldering tool according to claim 1, characterized in that: The soldering part (61) comprises a second electric push rod (611), a support arm (612), a bearing arm (613), an induction soldering head (614), a limiting cylinder (615) and a solder wire (616); the support arm (612) is slidably mounted on the vertical slide rod (3); a sliding hole corresponding to the alignment plate (414) is provided on the support arm (612); a second electric push rod (611) whose telescopic end is fixedly connected to the support arm (612) is fixedly mounted on the upper end of the vertical slide rod (3); a bearing arm (613) corresponding to the positioning block (511) is fixedly mounted on the rear end of the support arm (612); an induction soldering head (614) corresponding to the positioning block (511) is fixedly mounted on the support arm (612); a limiting cylinder (615) which has an angle with the induction soldering head (614) is fixedly mounted on the bearing arm (613); and a solder wire (616) is arranged in the limiting cylinder (615).

5. A PCB soldering tool according to claim 4, characterized in that: The limiting part (62) comprises a supporting elliptical plate (621), a second roller (622), a connecting frame (623), a sliding plate (624), a third roller (625) and a bolt (626); a left-right symmetrical supporting elliptical plate (621) is fixedly mounted on the lower end of the carrying arm (613); a front-back symmetrical second roller (622) is mounted between the left-right symmetrical supporting elliptical plates (621) via a bearing; a connecting frame (623) located on the upper end surface of the supporting elliptical plate (621) is commonly provided on the carrying arm (613); a sliding plate (624) is mounted in the connecting frame (623) so as to slide up and down; a third roller (625) corresponding to the second roller (622) on the front side is mounted on the lower end of the sliding plate (624) via a bearing; a bolt (626) is mounted on the upper end of the sliding plate (624) via a bearing; and the upper end of the connecting frame (623) is threadedly connected to the bolt (626).

6. A PCB soldering tool according to claim 5, characterized in that: The transport part (63) comprises a fourth transmission shaft (631), a fourth motor (632) and a fan-shaped stopper (633); the fourth transmission shaft (631) is installed in the connection frame (623) through a bearing; the fourth motor (632) whose output end is fixedly connected to the fourth transmission shaft (631) is fixedly installed on the connection frame (623); the fourth transmission shaft (631) is fixedly sleeved with a fan-shaped stopper (633) corresponding to the second roller (622) at the rear side; and a rubber groove is provided on the outer arc wall of the fan-shaped stopper (633).

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