An adjustable circuit board soldering device

Abstract

The present application relates to a soldering device, especially to an adjustable circuit board soldering device. The present application provides an adjustable circuit board soldering device which can realize automatic soldering and has high soldering efficiency, comprising a workbench and a protective shell, the protective shell is fixedly connected to the workbench, further comprising a square block, a mounting frame, a soldering pen, a first reset spring and an ejection mechanism, the mounting frame is slidably connected to the square block, the first reset spring is connected between the mounting frame and the square block, the soldering pen is fixedly connected to the mounting frame, the ejection mechanism comprises a guide rod fixedly connected to the protective shell and a detachable pressing block arranged on the guide rod, when the soldering pen moves and contacts the pressing block, the pressing block extrudes the mounting frame and the soldering pen downward to realize automatic soldering of the circuit board. In the present application, when the square block and the mounting frame move, the mounting frame and the soldering pen are extruded downward by the pressing block through the cooperation of the pressing block, the threaded rod and the oval block, thereby realizing automatic soldering of the circuit board a.

Description

Technical Field

[0001] This invention relates to a soldering apparatus, and more particularly to an adjustable circuit board soldering apparatus. Background Technology

[0002] Soldering is an important process used to connect various electronic components on a circuit board. The main process involves using solder made of tin-based alloy to heat an electrically heated soldering iron until it melts, and then covering the pins of the electronic components and the wires to be connected with it to make them connected.

[0003] The existing circuit board soldering process involves manually connecting wires, which is inefficient and cannot guarantee consistent soldering quality. Summary of the Invention

[0004] In order to overcome the shortcomings of existing manual soldering of circuit boards, such as low efficiency and inconsistent soldering quality, this invention provides an adjustable circuit board soldering device that can achieve automatic soldering and high soldering efficiency.

[0005] An adjustable circuit board soldering device includes a worktable and a protective shell, the protective shell being fixedly attached to the worktable. It also includes a square block, a mounting bracket, a soldering pen, a first return spring, an ejection mechanism, and a power mechanism. The mounting bracket is slidably connected to the square block, and the first return spring connects the mounting bracket to the square block. The soldering pen is fixedly attached to the mounting bracket. The ejection mechanism includes a guide rod fixed inside the protective shell and a detachable pressure block mounted on the guide rod. When the soldering pen moves and contacts the pressure block, the pressure block presses the mounting bracket and the soldering pen downwards to achieve automatic soldering of the circuit board. The force mechanism includes a first lead screw and a second lead screw rotatably connected to the protective shell, and a fixing frame slidably sleeved on a square block. The first and second lead screws are distributed vertically, and the square block has two through holes, the diameter of which is larger than the diameter of the first and second lead screws. The square block is sleeved on the first and second lead screws through the through holes. The fixing frame has two U-shaped grooves arranged vertically and horizontally, which communicate with the two through holes on the square block. The fixing frame is threadedly connected to the first and second lead screws through the two U-shaped grooves. Preferably, the ejection mechanism also includes a slider, a threaded rod, and an elliptical block. A sliding groove is provided on the right side of the inner wall of the protective shell, located in front of the guide rod. The slider can slide on the sliding groove and engages with the right end of the guide rod. The pressure block can slide in from the right end of the guide rod. The threaded rod is fixed to the pressure block, and the front and rear ends of the threaded rod are threadedly connected to the elliptical blocks.

[0006] Preferably, the power mechanism further includes a first motor for driving the first lead screw and the second lead screw to rotate and a transmission belt. The first motor is installed on the left side of the protective shell. The output shaft of the first motor is connected to the first lead screw through a coupling. The left ends of the first lead screw and the second lead screw are wound with transmission belts. When the fixing frame is threadedly connected to the first lead screw through the upper U-shaped groove, the lower U-shaped groove of the fixing frame does not contact the second lead screw. When the lower U-shaped groove of the fixing frame is threadedly connected to the second lead screw, the upper U-shaped groove of the fixing frame does not contact the first lead screw.

[0007] Preferably, it further includes a soldering mechanism, which includes a winding wheel, a fixing block, a clamping plate, a second return spring, a guide plate, solder wire, a rotating block, and an elastic element. The winding wheel is rotatably connected to the rear side of the square block, the fixing block is fixedly connected to the rear side of the mounting frame, the clamping plate passes through the fixing block, and the second return spring is connected between the clamping plate and the mounting frame. The guide plate is fixedly connected to the lower side of the mounting frame, the solder wire is wound on the winding wheel and passes through the fixing block and the guide plate, and two rotating blocks are symmetrically rotatably connected to the rear side of the square block. An elastic element is connected between the lower part of the rotating block and the square block.

[0008] Preferably, it also includes a wire feeding mechanism, which includes a limiting block, a material collection frame, a third return spring, a push plate, a fourth return spring, a first mounting plate, a protrusion, a second mounting plate, and a connecting block. Two limiting blocks are slidably connected to the front side of the worktable. The material collection frame is connected to the limiting blocks through the third return spring. The material collection frame is located inside the limiting blocks. The push plate is connected to the inner wall of the material collection frame through the fourth return spring. The first mounting plate is fixedly connected to the limiting block located above. The protrusion is rotatably connected to the upper end of the first mounting plate. The second mounting plate is fixedly connected to the front side of the mounting frame. The upper end of the connecting block is rotatably connected to the second mounting plate. The lower end of the connecting block is fixedly connected to the protrusion.

[0009] Preferably, it also includes a reversing mechanism, which includes a push block and a handle. The right end of the first lead screw and the left end of the second lead screw are both fixedly connected to the push block, and the handle is fixedly connected to the left and right sides of the fixed frame.

[0010] Preferably, it also includes a discharge mechanism, which comprises a mounting block, a second motor, a push plate, a rotating rod, a pulley set, a sliding frame, a fifth return spring, a mounting base, a rotating wheel, a locking belt, a pawl, a torsion spring, a mounting rod, and a ratchet. The second motor is mounted on the rear side of the worktable via the mounting block. The output shaft of the second motor is connected to a push plate via a coupling. The rotating rod is rotatably connected to the worktable. A push plate is fixed to one side of the rotating rod. The two push plates are driven by a pulley set. The right side of the sliding frame slides on the worktable, and the left end of the sliding frame is fixed to the rotating rod. The right side of the sliding frame is connected to the protective... A fifth return spring connects the housings. Four sets of mounting seats are symmetrically fixed to the upper left and right sides of the worktable. Two mounting seats form a group. Rotating wheels are rotatably connected to the two mounting seats in the same group and to the position on the worktable directly below the mounting seats. The locking belt is wound around the two vertically aligned rotating wheels. The ratchet is fixed to the rotating wheel on the mounting seat. Two mounting rods are slidably connected to the left and right sides of the worktable. Pads are rotatably connected to the front and rear of the mounting rods. Torsion springs are connected between the rotating wheels and the mounting seats and between the pawls and the mounting rods. The ratchet and pawl cooperate with each other.

[0011] By adopting the above solution, the beneficial effects achieved by the present invention are as follows:

[0012] 1. In this invention, through the cooperation of pressure blocks, threaded rods, elliptical blocks, etc., when the square block and the mounting bracket move, the mounting bracket and the soldering pen are squeezed down by the pressure blocks, thereby realizing automatic soldering.

[0013] 2. The present invention is provided with a first motor, which drives the first lead screw to rotate. The second lead screw rotates together with the first lead screw through a transmission belt and is threadedly connected to the first and second lead screws through a movable fixing frame, so as to drive the soldering pen to reciprocate left and right for soldering.

[0014] 3. In this invention, the purpose of automatically supplying solder wire is achieved through the cooperation of fixing blocks and clamps.

[0015] 4. In this invention, the automatic supply of wires is achieved through the cooperation of the material collection frame and protrusions, which is more convenient and labor-saving. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the slide, square block, and mounting bracket of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the protective shell of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the ejection mechanism of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the ejection mechanism and the power mechanism of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the pressure block, threaded rod, and elliptical block of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the tin-feeding mechanism of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the winding wheel, fixing block, and clamping plate of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the fixing block, clamping plate, and second reset spring of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the wire feeding mechanism of the present invention.

[0026] Figure 11 This is a three-dimensional structural diagram of the push plate and the fourth reset spring of the present invention.

[0027] Figure 12 This is a three-dimensional structural diagram of the first mounting plate, the protrusion, and the second mounting plate of the present invention.

[0028] Figure 13 This is a three-dimensional structural diagram of the protrusion, the second mounting plate, and the connecting block of the present invention.

[0029] Figure 14 This is a three-dimensional structural diagram of the material discharge mechanism of the present invention.

[0030] Figure 15 This is a three-dimensional structural diagram of the mounting base and the locking belt of the present invention.

[0031] Figure 16 This is a three-dimensional structural diagram of the rotating wheel, locking belt, and ratchet of the present invention.

[0032] Figure 17 This is a three-dimensional structural diagram of the torsion spring and mounting rod of the present invention.

[0033] Figure 18 This is a three-dimensional structural diagram of the torsion spring, mounting rod, and ratchet of the present invention.

[0034] The labels in the attached diagram are as follows: 1-Workbench, 2-Protective Shell, 3-Slide Groove, 4-Square Block, 5-Mounting Bracket, 6-Solder Pen, 7-First Return Spring, 8-Ejection Mechanism, 801-Guide Rod, 802-Slider, 803-Pressure Block, 804-Threaded Rod, 805-Elliptical Block, 9-Power Mechanism, 901-First Motor, 902-First Lead Screw, 903-Second Lead Screw, 10-Soldering Mechanism, 1001-Winding Wheel, 1002-Fixing Block, 1003-Clamping Plate, 1004-Second Return Spring, 1005-Guide Plate, 1006-Solder Wire, 1007-Rotating Block, 1008-Elastic Element, 11-Wire Feeding Mechanism, 1101-Limiting Block, 1102-Collection Frame, 1103-Third Return Spring Spring, 1104-Push plate, 1105-Fourth return spring, 1106-First mounting plate, 1107-Protrusion, 1108-Second mounting plate, 1109-Connecting block, 12-Reversing mechanism, 1201-Push block, 1202-Fixed frame, 1203-Handle, 1204-Drive belt, 13-Discharge mechanism, 1301-Mounting block, 1302-Second motor, 1303-Push plate, 1304-Rotating rod, 1305-Pulley assembly, 1306-Sliding frame, 1307-Fifth return spring, 1308-Mounting seat, 1309-Rotating wheel, 1310-Clocking belt, 1311-Pawl, 1312-Torsion spring, 1313-Mounting rod, 1314-Ratchet, a-Circuit board. Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0036] An adjustable circuit board soldering device, such as Figures 1 to 3As shown, the device includes a workbench 1 and a protective shell 2, with the protective shell 2 fixedly attached to the workbench 1. It also includes a square block 4, a mounting bracket 5, a soldering pen 6, a first return spring 7, an ejection mechanism 8, and a power mechanism 9. The mounting bracket 5 is slidably connected to the square block 4, and the first return spring 7 connects the mounting bracket 5 and the square block 4. The soldering pen 6 is fixedly attached to the mounting bracket 5. The ejection mechanism 8 includes a guide rod 801 fixed inside the protective shell 2 and a detachable pressure block 803 mounted on the guide rod 801. The lower end of the pressure block 803 is arc-shaped. When the soldering pen 6 moves and contacts the pressure block 803, the pressure block 803 presses the mounting bracket 5 and the soldering pen 6 downwards to achieve automatic soldering of the circuit board a. The power mechanism 9 includes a first return spring 7 rotatably connected to the protective shell 2. The first lead screw 902 and the second lead screw 903, and the fixing bracket 1202 slidably sleeved on the square block 4, are arranged vertically. The first lead screw 902 and the second lead screw 903 are arranged vertically, and the threads on the first lead screw 902 and the second lead screw 903 are opposite. The square block 4 has two through holes, one vertically and one horizontally. The square block 4 is sleeved on the first lead screw 902 and the second lead screw 903 through the through holes. The diameter of the through holes is larger than the diameter of the first lead screw 902 and the second lead screw 903. The fixing bracket 1202 has two U-shaped grooves arranged vertically and vertically. The two U-shaped grooves are respectively connected to the two through holes on the square block 4. The fixing bracket 1202 is threadedly connected to the first lead screw 902 and the second lead screw 903 through the two U-shaped grooves.

[0037] like Figure 4 , Figure 5 and Figure 6 As shown, the ejection mechanism 8 also includes a slider 802, a threaded rod 804, and an elliptical block 805. A groove 3 is provided on the right side of the inner wall of the protective shell 2. The groove 3 is located in front of the guide rod 801. The slider 802 can slide on the groove 3 and is engaged with the right end of the guide rod 801. When the slider 802 moves forward along the groove 3 and disengages from the guide rod 801, the pressure block 803 can slide into the right end of the guide rod 801. The threaded rod 804 passes through and is fixed to the pressure block 803. The front and rear ends of the threaded rod 804 are threadedly connected to the elliptical block 805.

[0038] like Figure 5As shown, the power mechanism 9 also includes a first motor 901 for driving the first lead screw 902 and the second lead screw 903 to rotate, and a transmission belt 1204. The first motor 901 is installed on the left side of the protective shell 2. The output shaft of the first motor 901 is connected to the first lead screw 902 through a coupling. The transmission belt 1204 is wound around the left end of the first lead screw 902 and the second lead screw 903. When the fixing frame 1202 is threadedly connected to the first lead screw 902 through the upper U-shaped groove, the lower U-shaped groove of the fixing frame 1202 does not contact the second lead screw 903. When the lower U-shaped groove of the fixing frame 1202 is threadedly connected to the second lead screw 903, the upper U-shaped groove of the fixing frame 1202 does not contact the first lead screw 902.

[0039] First, place the circuit board a to be soldered on the workbench 1. Then, move the slider 802 forward along the slide groove 3 to disengage it from the guide rod 801. Next, slide the pressure block 803 onto the guide rod 801. Then, rotate the elliptical blocks 805 on both sides of the pressure block 803 inward to fix the position of the pressure block 803 on the guide rod 801. Then, move the slider 802 back to its original position. Then, push the fixing frame 1202 backward so that the U-shaped groove above the fixing frame 1202 is threaded into the first lead screw 902. Start the first motor 901 to rotate forward, which will drive the first lead screw 902 to rotate. The rotation of the first lead screw 902 will drive the fixing frame 1202 to move to the left. The leftward movement of the fixing frame 1202 will drive the square block 4, the mounting bracket 5, and the soldering pen 6 to move to the left. When the fixing frame 1202 moves to the leftmost side of the first motor 901, push the fixing frame 1202 forward so that the U-shaped groove below the fixing frame 1202 is threaded into the first lead screw 902. The second lead screw 903 is threaded. Since the threads on the first lead screw 902 and the second lead screw 903 are opposite, under the action of the transmission belt 1204, the second lead screw 903 will drive the fixing frame 1202, the square block 4, the mounting frame 5 and the solder pen 6 to move to the right. Since the lower end of the pressure block 803 is arc-shaped and the lower end of the pressure block 803 is aligned with the lower side of the mounting frame 5, the mounting frame 5 will be squeezed down by the pressure block 803 when it moves left and right. The downward movement of the mounting frame 5 causes the solder pen 6 to move down to solder the circuit board a, thereby completing the soldering. In addition, by rotating the elliptical block 805 outward, the elliptical block 805 will no longer clamp and fix the pressure block 803 on the guide rod 801, and the pressure block 803 can be moved. Then, by moving the slider 802 forward, the pressure block 803 can be moved out from the right end of the guide rod 801, which makes it convenient to increase or decrease the number of pressure blocks 803 and adjust the number of soldering operations. Example

[0040] Based on Example 1, such as Figure 7 , Figure 8 and Figure 9As shown, it also includes a soldering mechanism 10, which includes a winding wheel 1001, a fixing block 1002, a clamping plate 1003, a second return spring 1004, a guide plate 1005, solder wire 1006, a rotating block 1007, and an elastic element 1008. The winding wheel 1001 is rotatably connected to the rear side of the square block 4. The fixing block 1002 is bolted to the rear side of the mounting frame 5. The clamping plate 1003 passes through the fixing block 1002. The second return spring 1004 is connected between the clamping plate 1003 and the mounting frame 5. The guide plate 1005 is bolted to the lower side of the mounting frame 5. The solder wire 1006 is wound on the winding wheel 1001 and passes through the fixing block 1002 and the guide plate 1005. Two rotating blocks 1007 are symmetrically rotatably connected to the rear side of the square block 4. An elastic element 1008 is connected between the lower part of the rotating block 1007 and the square block 4.

[0041] When the pressure block 803 presses down on the mounting bracket 5 and the solder pen 6, the clamping plate 1003 is pushed outward by the rotating block 1007. The clamping plate 1003 cooperates with the fixing block 1002 to clamp the solder wire 1006. The fixing block 1002 and the clamping plate 1003 move down with the mounting bracket 5, which will drive the solder wire 1006 downward, realizing automatic soldering. When the clamping plate 1003 moves to the lower part of the rotating block 1007, the clamping plate 1003 will push the rotating block 1006 down. When 007 is pressed down, the elastic element 1008 is compressed, and the clamping plate 1003 continues to move down to the lower side of the rotating block 1007. The lower part of the rotating block 1007 is lifted outward under the action of the elastic element 1008. When the mounting bracket 5 and the solder pen 6 are not squeezed by the pressure block 803 and move upward, the clamping plate 1003 also moves upward. The clamping plate 1003 moves upward between the rotating block 1007 and the square block 4, and so on, moving up and down repeatedly to apply solder.

[0042] like Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, it also includes a wire feeding mechanism 11, which includes a limiting block 1101, a material collection frame 1102, a third return spring 1103, a push plate 1104, a fourth return spring 1105, a first mounting plate 1106, a protrusion 1107, a second mounting plate 1108, and a connecting block 1109. Two limiting blocks 1101 are slidably connected to the front side of the workbench 1. The material collection frame 1102 is connected to the limiting blocks 1101 through the third return spring 1103. Located inside the limiting block 1101, the push plate 1104 is connected to the inner wall of the collection frame 1102 via the fourth return spring 1105. The first mounting plate 1106 is fixedly connected to the limiting block 1101 located above. The protrusion 1107 is rotatably connected to the upper end of the first mounting plate 1106. The second mounting plate 1108 is bolted to the front side of the mounting frame 5. The upper end of the connecting block 1109 is rotatably connected to the second mounting plate 1108. The lower end of the connecting block 1109 is fixedly connected to the protrusion 1107.

[0043] When the mounting bracket 5 and the soldering pen 6 move down to perform soldering, the second mounting plate 1108 and the connecting block 1109 move down with the mounting bracket 5. The connecting block 1109 causes the right side of the protrusion 1107 to move the wire backward to below the soldering pen 6, where the soldering pen 6 solders it to achieve automatic wire feeding. The left side of the protrusion 1107 will squeeze the collection frame 1102 to move down, causing the wire and the collection frame 1102 to separate. Then, the collection frame 1102 moves up under the action of the third reset spring 1103.

[0044] like Figure 5 As shown, it also includes a reversing mechanism 12, which includes a push block 1201 and a handle 1203. The push block 1201 is fixedly connected to the right end of the first lead screw 902 and the left end of the second lead screw 903. The handle 1203 is fixedly connected to the left and right sides of the fixed frame 1202.

[0045] Because the threads of the first lead screw 902 and the second lead screw 903 have different directions, their conveying directions are also different. When the first lead screw 902 conveys the square block 4, the mounting bracket 5, and the solder pen 6 to the leftmost position, the push block 1201 on the left rotates with the second lead screw 903 and comes into contact with the handle 1203, pushing the handle 1203 and the fixing bracket 1202 forward. This causes the fixing bracket 1202 to come into contact with the second lead screw 903, and the second lead screw 903 will then drive the fixing bracket 1202, the square block 4, the mounting bracket 5, and the solder pen 6 to move forward. The solder pen 6 moves automatically to the right. When the second lead screw 903 delivers the square block 4, the mounting bracket 5, and the solder pen 6 to the far right, the push block 1201 on the right will push the handle 1203 and the fixing bracket 1202 backward, thereby controlling the fixing bracket 1202, the square block 4, the mounting bracket 5, and the solder pen 6 to move automatically to the left. In this way, the fixing bracket 1202 can be moved to change the direction of movement of the square block 4, the mounting bracket 5, and the solder pen 6 without manual intervention, so that the solder pen 6 can move back and forth left and right to perform soldering.

[0046] like Figures 14 to 18As shown, it also includes a discharge mechanism 13, which includes a mounting block 1301, a second motor 1302, a push plate 1303, a rotating rod 1304, a pulley set 1305, a sliding frame 1306, a fifth return spring 1307, a mounting base 1308, a rotating wheel 1309, a locking belt 1310, a pawl 1311, a torsion spring 1312, a mounting rod 1313, and a ratchet 1314. The mounting block 1301 is fixedly connected to the working... On the rear side of platform 1, the second motor 1302 is mounted on mounting block 1301. The output shaft of the second motor 1302 is connected to a push plate 1303 via a coupling. The rotating rod 1304 is rotatably connected to the worktable 1. A push plate 1303 is fixed to one side of the rotating rod 1304. The two push plates 1303 are driven by a pulley set 1305. The right side of the sliding frame 1306 slides on the worktable 1, and the left end of the sliding frame 1306 is connected to the rotating rod 1304. 04. Fixed connection: A fifth return spring 1307 is connected between the right side of the sliding frame 1306 and the protective shell 2. Four sets of mounting seats 1308 are symmetrically fixed to the upper side of the left and right sides of the workbench 1. Two mounting seats 1308 form a group. Rotating wheels 1309 are rotatably connected to the two mounting seats 1308 in the same group and to the position directly below the mounting seats 1308 on the workbench 1. The locking belt 1310 is wound around the two vertically aligned rotating wheels 1309. The ratchet 1314 is fixed to the rotating wheel 1309 on the mounting seat 1308. Two mounting rods 1313 are slidably connected to the left and right sides of the workbench 1. The pawl 1311 is rotatably connected to the front and rear of the mounting rod 1313. Torsion springs 1312 are connected between the rotating wheel 1309 and the mounting seat 1308 and between the pawl 1311 and the mounting rod 1313. The ratchet 1314 and the pawl 1311 cooperate with each other.

[0047] The workers individually attach the circuit boards (a) to be soldered onto the clamping belt 1310. Each time a circuit board (a) is placed, the upper side of the circuit board (a) is pressed down, causing the clamping belt 1310 to rotate downwards. This causes the rotating wheel 1309 and ratchet 1314 to rotate, and the pawl 1311 engages with the ratchet 1314. Once the loading groove is full of circuit boards (a) to be soldered, the workers move the mounting rod 1313 to both sides, separating the pawl 1311 from the ratchet 1314. Then, the soldering pen 6 solders the upper circuit board (a). When the soldering pen 6 moves to the left side and engages with the rotating wheel 1309... When the rod 1304 makes contact, the soldering pen 6 will push the rotating rod 1304 to rotate. The rear end of the rotating rod 1304 will move the push plate 1303 and the pulley group 1305 towards the circuit board a. The pulley group 1305, driven by the second motor 1302, will cause the push plate 1303 to rotate. The rotation of the push plate 1303 will push the soldered circuit board a backward, realizing automatic material discharge. Afterward, the upper rotating wheel 1309 will rotate under the action of the torsion spring 1312. The rotation of the upper rotating wheel 1309 will drive the clamping belt 1310 to move the next circuit board a upward, realizing automatic material feeding.

[0048] The embodiments described above are merely preferred embodiments of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An adjustable circuit board soldering device, comprising a worktable (1) and a protective shell (2), characterized in that, It also includes a square block (4), a mounting bracket (5), a soldering pen (6), a first return spring (7), an ejection mechanism (8), a power mechanism (9), a soldering mechanism (10), and a discharge mechanism (13). The mounting bracket (5) is slidably connected to the square block (4), and the first return spring (7) is connected between the mounting bracket (5) and the square block (4). The soldering pen (6) is fixed to the mounting bracket (5). The ejection mechanism (8) includes a guide rod (801), which is fixed inside the protective shell (2). The pressure block (803) is detachably mounted on the guide rod (801). A groove (3) is provided on the right side of the inner wall of the protective shell (2). The slider (802) can slide on the groove (3) and is engaged with the right end of the guide rod (801). The pressure block (803) can slide in from the right end of the guide rod (801). A threaded rod (804) passes through and is fixed on the pressure block (803). Elliptical blocks (805) are threaded at both ends of the threaded rod (804). The power mechanism (9) includes a first lead screw (902) and a second lead screw (903) rotatably connected to the protective shell (2), a fixed frame (1202) slidably sleeved on the square block (4), a first motor (901) for driving the first lead screw (902) and the second lead screw (903) to rotate, and a transmission belt (1204). The first lead screw (902) and the second lead screw (903) are distributed vertically. The square block (4) has two through holes, one above the other. The square block (4) is sleeved on the first lead screw through the through holes. On the first lead screw (902) and the second lead screw (903), the fixing frame (1202) has two U-shaped grooves in opposite directions. The fixing frame (1202) is threadedly connected to the first lead screw (902) and the second lead screw (903) through the two U-shaped grooves respectively. The first motor (901) is installed on the left side of the protective shell (2). The output shaft of the first motor (901) is connected to the first lead screw (902) through a coupling. The left ends of the first lead screw (902) and the second lead screw (903) are wound with a transmission belt (1204). The soldering mechanism (10) includes a winding wheel (1001), which is rotatably connected to the rear side of the square block (4). A fixed block (1002) is fixed to the rear side of the mounting frame (5). A clamping plate (1003) passes through the fixed block (1002). A second return spring (1004) is connected between the clamping plate (1003) and the mounting frame (5). A guide plate (1005) is fixed to the lower side of the mounting frame (5). Solder wire (1006) is wound on the winding wheel (1001) and passes through the fixed block (1002) and the guide plate (1005). Two rotating blocks (1007) are symmetrically rotatably connected to the rear side of the square block (4). An elastic element (1008) is connected between the lower part of the rotating block (1007) and the square block (4). The discharge mechanism (13) includes a second motor (1302), which is mounted on the rear side of the workbench (1) via a mounting block (1301). The output shaft of the second motor (1302) is connected to a push plate (1303) via a coupling. The rotating rod (1304) is rotatably connected to the workbench (1). A push plate (1303) is fixedly connected to one side of the rotating rod (1304). The two push plates (1303) are driven by a pulley group (1305). The right side of the sliding frame (1306) slides on the workbench (1), and the left end of the sliding frame (1306) is fixedly connected to the rotating rod (1304). A fifth return spring (1307) is connected between the right side of the sliding frame (1306) and the protective shell (2). Four sets of mounting seats (1308) are symmetrically fixed to the left and right sides of the workbench (1). On the upper side, two mounting seats (1308) are grouped together. Rotating wheels (1309) are rotatably connected to the two mounting seats (1308) in the same group and to the worktable (1) located directly below the mounting seats (1308). The locking belt (1310) is wound around the two rotating wheels (1309) aligned vertically. The ratchet (1314) is fixed to the rotating wheel (1309) on the mounting seat (1308). Two mounting rods (1313) are slidably connected to the left and right parts of the worktable (1). The pawl (1311) is rotatably connected to the front and rear parts of the mounting rod (1313). Torsion springs (1312) are connected between the rotating wheel (1309) and the mounting seat (1308) and between the pawl (1311) and the mounting rod (1313). The ratchet (1314) and the pawl (1311) cooperate with each other.

2. The adjustable circuit board soldering device according to claim 1, characterized in that, The diameters of the two through holes on the square block (4) are both larger than the diameters of the first lead screw (902) and the second lead screw (903). The two U-shaped grooves on the fixing frame (1202) are connected to the two through holes on the square block (4). When the fixing frame (1202) is threadedly connected to the first lead screw (902) through the upper U-shaped groove, the lower U-shaped groove of the fixing frame (1202) does not contact the second lead screw (903). When the lower U-shaped groove of the fixing frame (1202) is threadedly connected to the second lead screw (903), the upper U-shaped groove of the fixing frame (1202) does not contact the first lead screw (902).

3. The adjustable circuit board soldering device according to claim 1, characterized in that, It also includes a wire feeding mechanism (11), which includes a limiting block (1101), a material collection frame (1102), a third return spring (1103), a push plate (1104), a fourth return spring (1105), a first mounting plate (1106), a protrusion (1107), a second mounting plate (1108), and a connecting block (1109). Two limiting blocks (1101) are slidably connected to the front side of the workbench (1). The material collection frame (1102) is connected to the limiting blocks (1101) through the third return spring (1103). 02) Located inside the limiting block (1101), the push plate (1104) is connected to the inner wall of the collection frame (1102) through the fourth reset spring (1105). The first mounting plate (1106) is fixedly connected to the limiting block (1101) located above. The protrusion (1107) is rotatably connected to the upper end of the first mounting plate (1106). The second mounting plate (1108) is fixedly connected to the front side of the mounting frame (5). The upper end of the connecting block (1109) is rotatably connected to the second mounting plate (1108). The lower end of the connecting block (1109) is fixedly connected to the protrusion (1107).

4. An adjustable circuit board soldering device according to claim 2, characterized in that, It also includes a reversing mechanism (12), which includes a push block (1201) and a handle (1203). The right end of the first lead screw (902) and the left end of the second lead screw (903) are both fixedly connected to the push block (1201), and the handle (1203) is fixedly connected to the left and right sides of the fixed frame (1202).

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