Circuit board immersion cleaning device

Abstract

The invention discloses a circuit board immersion cleaning device which comprises an immersion cleaning pool, a linkage mechanism, a driving mechanism and a cleaning mechanism. Through the linkage mechanism arranged at the front top end of the immersion cleaning pool, the linkage mechanism comprises the mounting frame, the cam, the first driving motor, the movable mechanism, the clamping mechanism and the like, the circuit board can be driven to reciprocate in the immersion cleaning pool, a cleaning reagent in the immersion cleaning pool can make full contact with the circuit board, the immersion cleaning effect is improved, and meanwhile the service life of the circuit board is prolonged. The driving mechanism arranged at the rear end of the immersion cleaning pool can drive the cleaning mechanism at the rear end in the immersion cleaning pool to move, the cleaning mechanism comprises a first swing part, a crank arm, a second swing part, a fixing plate, a front rod, a cleaning brush and other assemblies, the moving circuit board can be cleaned through the cleaning brush, impurities of the circuit board can be effectively removed, the immersion cleaning effect on the circuit board is improved, and the service life of the circuit board is prolonged. And the use requirements of people are met.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board cleaning, and specifically relates to a circuit board immersion cleaning device. Background Art

[0002] A circuit board, also known as a printed circuit board or printed wiring board, is an electronic component composed of an insulating substrate (such as fiberglass, epoxy resin) and a conductive copper layer. Its core function is to connect electronic components through copper wires formed by etching, achieving the miniaturization and visualization of the circuit and optimizing the electrical appliance layout.

[0003] During the soldering process of the circuit board, contaminants and flux residues are likely to be generated. These impurities are usually corrosive. Attaching to the pads may cause short circuits, thereby degrading the performance of the circuit board, and even causing short circuits or signal interference. Moreover, it will also affect the appearance and electrical performance of the circuit board. Therefore, it is necessary to immerse and clean the circuit board.

[0004] Some existing circuit board immersion cleaning devices usually immerse the circuit board in a cleaning reagent and use a cleaning tool such as a cleaning brush to clean and wipe the outer side of the circuit board. However, since the circuit board is immersed in water for a long time and is continuously rubbed by external forces, parts on the circuit board may fall off, affecting the normal use of the circuit board, resulting in damage to the circuit board, and there are potential safety hazards during use. Summary of the Invention

[0005] The purpose of the present invention is to provide a circuit board immersion cleaning device to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A circuit board immersion cleaning device includes an immersion tank, and also includes a linkage mechanism provided at the front top end of the immersion tank, a set of driving mechanisms provided at the middle rear end of the immersion tank, and a set of cleaning mechanisms connected to the middle rear end inside the immersion tank;

[0007] The linkage mechanism includes a mounting frame, a cam, a driving motor 1, a moving mechanism, and a clamping mechanism. A set of mounting frames are provided at the front top end of the immersion tank. A set of cams are connected to the front end inside the mounting frame. A set of driving motors 1 are provided at the right front end of the mounting frame corresponding to the position of the cam. A set of moving mechanisms are provided at the middle end inside the mounting frame. Two sets of clamping mechanisms are provided at the rear end of the mounting frame.

[0008] By adopting the above technical solutions, the driving motor 1 can drive the cam inside the mounting frame to rotate, and link the moving mechanism to push the two sets of clamping mechanisms to move intermittently, which can drive the circuit board to move inside the immersion tank, and the driving mechanism drives the cleaning mechanism to clean the circuit board.

[0009] Preferably, the movable mechanism includes a sliding plate, a first moving column, a first connecting ring, a first spring, and a sliding member. A set of sliding plates is provided at the middle end of the mounting frame. A set of first moving columns is connected to the middle end of the sliding plate. A set of first connecting rings is provided at both ends of the first moving column. The rear end of the front first connecting ring is connected to the front end of the sliding plate through a first spring. And a set of sliding members is provided at the front end of the first moving column.

[0010] By adopting the above technical solution, the sliding plate and the first moving column can move left and right in the middle end of the mounting frame, and can compress or release the first spring. The front and rear moving paths of the first moving column can be restricted by two sets of first connecting rings.

[0011] Preferably, the components of the clamping mechanism are all the same. The clamping mechanism includes a second moving column, a second connecting ring, a second spring, and a fixture. A set of second moving columns is provided at the left and right ends of the rear part inside the mounting frame. A set of second connecting rings is provided at both ends of the second moving column. And the rear end of the front second connecting ring is connected to the rear end face inside the mounting frame through a second spring. The rear ends of the two sets of second moving columns respectively penetrate and extend to the left and right ends of the rear part of the mounting frame and are connected to a set of fixtures.

[0012] By adopting the above technical solution, when the first moving column moves left and right, it can contact and push the second moving column to move backward. The second spring can drive the second moving column to reset by releasing the elastic force.

[0013] Preferably, the driving mechanism includes a rear frame, a second driving motor, a rotating member, a first transmission plate, a second transmission plate, and a rotating shaft. A set of rear frames is provided at the middle end of the rear part of the immersion tank. A set of second driving motors is connected to the top end of the rear frame. The bottom end of the driving shaft of the second driving motor penetrates and extends to the top end inside the rear frame and is connected to a set of rotating members. The other end of the rotating member is connected to a set of first transmission plates. The other end of the first transmission plate is connected to a set of second transmission plates. And a set of rotating shafts is provided at the bottom end of the rear part inside the rear frame. The middle end of the rotating shaft is connected to the bottom end of the second transmission plate.

[0014] By adopting the above technical solution, the second driving motor can drive the rotating member, the first transmission plate, and the second transmission plate to rotate, and drive the rotating shaft to rotate left and right reciprocally through the second transmission plate.

[0015] Preferably, the cleaning mechanism includes a first swinging member, a crank arm, a second swinging member, a fixing plate, a front rod, and a cleaning brush. The front end of the rotating shaft penetrates and extends to the rear end inside the immersion tank and is connected to a set of first swinging members. A set of crank arms is provided at the front left and right ends of the first swinging member. The other ends of the two sets of crank arms are both connected to a set of second swinging members. A set of fixing plates is provided at the middle end of the opposite faces of the two sets of second swinging members. A set of cleaning brushes is connected to the front ends of the two sets of second swinging members through front rods.

[0016] By adopting the above technical solution, the rotating shaft can drive the first swinging member to swing left and right, and then drive the second swinging member to swing through the crank arm, so that the left and right front rods and the cleaning brush can swing alternately to clean the circuit board.

[0017] Preferably, the crank arm is in an "L" shape, and both ends of the crank arm are rotatably connected to the first swinging member and the second swinging member.

[0018] By adopting the above technical solution, it is beneficial to the swinging of the first swinging member and the second swinging member.

[0019] Preferably, the second transmission plate is in an "L" shape, and the end close to the rotating shaft is fixedly sleeved on the middle outer end of the rotating shaft.

[0020] By adopting the above technical solution, the second transmission plate can drive the rotating shaft to rotate left and right reciprocally.

[0021] Preferably, the sliding member is in a rhombus shape and is rotatably connected to the first moving column.

[0022] Preferably, two sliding grooves are provided on the outside of the cam, and the ends of the two sliding grooves away from the cam protrusion are staggered with each other.

[0023] By adopting the above technical solution, the sliding member can be guided to slide through the sliding groove.

[0024] Preferably, the mounting frame is in a "U" shape, and the sliding plate is slidably connected to the middle end of the mounting frame.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. Through the linkage mechanism arranged at the front top end of the immersion tank, the linkage mechanism includes components such as a mounting frame, a cam, a first driving motor, a moving mechanism and a clamping mechanism, etc. The circuit board can be clamped by the clamping mechanism, and the clamping mechanism and the circuit board can be pushed to move back and forth in the immersion tank through the moving mechanism. Compared with the traditional circuit board immersion device that immerses the circuit board statically in the cleaning reagent, the present invention can not only stir the cleaning reagent through the circuit board, so that the cleaning reagent is in full contact with the circuit board, the cleaning reagent can wash off the impurities on the circuit board, but also is beneficial to the cleaning mechanism at the rear end in the immersion tank to clean the circuit board, and can significantly improve the cleaning effect on the circuit board;

[0027] 2. Through the cam arranged at the front inner end of the mounting frame, the first driving motor can drive the cam to rotate, and there are sliding grooves at the outer end of the cam. Through the cooperation with the sliding member at the front end of the first moving column, the moving mechanism can be driven to move back and forth, left and right, which is convenient for the reciprocating and staggered pushing of the rear clamping mechanism, thereby driving the circuit board to move in the immersion tank and stirring the cleaning reagent, which is more flexible compared with the traditional circuit board immersion device, and further enhances the cleaning effect on the circuit board;

[0028] 3. The present invention is provided with a cleaning mechanism at the rear end inside the immersion tank. The cleaning mechanism includes components such as a first swinging member, a crank arm, a second swinging member, a fixing plate, a front rod, and a cleaning brush. Through the cooperation of these components, the swinging of the first swinging member, the crank arm, and the second swinging member can drive the front rod and the cleaning brush to swing up and down, realizing the cleaning of the moved circuit board. The intermittent cleaning method for the circuit board optimizes the cleaning method in the traditional circuit board immersion device where the cleaning brush is in long-term contact with the circuit board. It can not only avoid damage to the components on the circuit board caused by the cleaning brush, but also effectively remove the impurities on the circuit board, improve the cleaning effect on the circuit board, and extend the service life of the circuit board. Brief Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of the present invention;

[0030] Figure 2 is a schematic structural diagram of the linkage mechanism of the present invention;

[0031] Figure 3 is a top view structural diagram of the linkage mechanism of the present invention;

[0032] Figure 4 is a right view structural diagram of the cam and the first moving column of the present invention;

[0033] Figure 5 is a structural diagram of the first moving column of the present invention;

[0034] Figure 6 is a schematic structural diagram of the driving mechanism of the present invention;

[0035] Figure 7 is a schematic structural diagram of the cleaning mechanism of the present invention;

[0036] Figure 8 is a top view structural diagram of the cleaning mechanism of the present invention.

[0037] In the figures: immersion tank - 1, linkage mechanism - 2, driving mechanism - 3, cleaning mechanism - 4, mounting rack - 21, cam - 22, first driving motor - 23, moving mechanism - 24, clamping mechanism - 25, sliding plate - 241, first moving column - 242, first connecting ring - 243, first spring - 244, sliding member - 245, second moving column - 251, second connecting ring - 252, second spring - 253, clamp - 254, rear rack - 31, second driving motor - 32, rotating member - 33, first transmission plate - 34, second transmission plate - 35, rotating shaft - 36, first swinging member - 41, crank arm - 42, second swinging member - 43, fixing plate - 44, front rod - 45, cleaning brush - 46. Detailed Embodiments

[0038] To further explain the technical solution of the present invention, the following will be elaborated in detail through specific embodiments.

[0039] Please refer to Figure 1 , the present invention provides a circuit board dipping device, including a dipping pool 1, and further including a linkage mechanism 2 provided at the front top end of the dipping pool 1, a set of driving mechanisms 3 provided at the middle rear end of the dipping pool 1, and a set of cleaning mechanisms 4 connected to the middle rear end inside the dipping pool 1.

[0040] Specifically, the linkage mechanism 2 can clamp the circuit board and drive the circuit board to move back and forth in the dipping pool 1. The driving mechanism 3 can drive the cleaning mechanism 4 to clean the circuit board, improving the cleaning effect.

[0041] Please refer to Figures 2 - 4 , the linkage mechanism 2 includes a mounting frame 21, a cam 22, a driving motor 1 23, a moving mechanism 24 and a clamping mechanism 25. A set of "U"-shaped mounting frames 21 are fixedly connected to the front top end of the dipping pool 1. A set of cams 22 are rotatably connected to the front end inside the mounting frame 21. A set of driving motors 1 23 are installed at the position corresponding to the cam 22 at the right front end of the mounting frame 21. The driving shaft of the driving motor 1 23 penetrates through the mounting frame 21 and is fixedly connected to the cam 22, which can drive the cam 22 to rotate. A set of moving mechanisms 24 are provided in the middle of the mounting frame 21. Among them, two sets of chutes are opened on the outer side of the cam 22, and the ends of the two sets of chutes far from the protrusion of the cam 22 are staggered with each other. The sliding member 245 can slide in the chute and guide the moving mechanism 24 to move left and right through the chute. Two sets of clamping mechanisms 25 are provided at the rear end of the mounting frame 21.

[0042] Specifically, the driving motor 1 23 can drive the cam 22 inside the mounting frame 21 to rotate, and link the moving mechanism 24 to push the two sets of clamping mechanisms 25 to move intermittently, so that the circuit board can move in the dipping pool 1, stirring the cleaning reagent in the dipping pool 1, enabling the circuit board to be in full contact with the cleaning reagent, thereby improving the cleaning effect on the circuit board.

[0043] Please refer to Figures 3 - 5, the movable mechanism 24 includes a sliding plate 241, a first moving column 242, a first connecting ring 243, a first spring 244 and a sliding member 245. A group of sliding plates 241 are slidably connected to the middle end of the mounting bracket 21. The left and right ends of the sliding plate 241 can extend to both ends of the mounting bracket 21 through sliding. A group of first moving columns 242 are slidably connected to the middle end of the sliding plate 241. Both ends of the first moving column 242 are fixedly connected with a group of first connecting rings 243. And the two groups of first connecting rings 243 are respectively located at the front and rear ends of the sliding plate 241. The moving path of the first moving column 242 can be restricted through the first connecting ring 243 to prevent it from falling off the sliding plate 241. The rear end of the front first connecting ring 243 is connected to the front end of the sliding plate 241 through the first spring 244. The first spring 244 is sleeved outside the first moving column 242. When the first moving column 242 moves backward, the first spring 244 can be compressed. And a rhombic sliding member 245 is rotatably connected to the front end of the first moving column 242. The sliding member 245 extends into the outer sliding groove of the cam 22 to facilitate the sliding of the sliding member 245 in the sliding groove. Further, the first spring 244 can push the first moving column 242 forward through its elastic force, so that the sliding member 245 always moves in the sliding groove.

[0044] Specifically, the sliding plate 241 can move left and right in the middle end of the mounting bracket 21. When the cam 22 rotates, it drives the sliding member 245, the first moving column 242 and the sliding plate 241 to move left and right through the outer sliding groove thereof, and the pushing target can be changed. And the cam 22 can push the first moving column 242 backward through its protruding part, and push the clamping mechanism 25 through the first moving column 242 to realize the movement of the circuit board.

[0045] Please refer to Figures 2 - 3 , the components of the clamping mechanism 25 are all the same. The clamping mechanism 25 includes a second moving column 251, a second connecting ring 252, a second spring 253 and a fixture 254. A group of second moving columns 251 are slidably connected to the left and right ends at the rear of the mounting bracket 21. The rear ends of the two groups of second moving columns 251 penetrate and extend to the rear end of the mounting bracket 21. And both ends of the second moving column 251 are fixedly connected with a group of second connecting rings 252. The two groups of second connecting rings 252 are respectively located at the inner and outer ends of the mounting bracket 21. And the rear ends of the front second connecting rings 252 are all connected to the rear end face inside the mounting bracket 21 through the second spring 253. The second spring 253 is sleeved outside the second moving column 251. The elastic force of the second spring 253 can be used to drive the second moving column 251 to move forward, so as to facilitate contacting the rear end of the first moving column 242. And a group of fixtures 254 for clamping the circuit board are installed at the rear ends of the two groups of second moving columns 251.

[0046] Specifically, when the first moving column 242 moves backward, it can contact and push the second moving column 251 to move backward, so that the fixture 254 can drive the circuit board to move in the immersion tank 1, increasing the contact area between the circuit board and the cleaning reagent, thereby improving the cleaning effect on the circuit board. Moreover, the second spring 253 can drive the second moving column 251 to move forward and reset by releasing elastic force, facilitating the next push of the first moving column 242.

[0047] Please refer to Figure 1 and Figure 6 , the driving mechanism 3 includes a rear frame 31, a second driving motor 32, a rotating member 33, a first transmission plate 34, a second transmission plate 35 and a rotating shaft 36. A set of "C"-shaped rear frames 31 are fixedly connected to the middle and rear ends of the immersion tank 1. A set of second driving motors 32 are installed at the top of the rear frame 31. The bottom end of the driving shaft of the second driving motor 32 penetrates and extends to the inner top end of the rear frame 31 and is fixedly connected to a set of rotating members 33, which can drive the rotating members 33 to rotate. The other end of the rotating member 33 is hinged to a set of first transmission plates 34. The other end of the first transmission plate 34 is hinged to a set of "L"-shaped second transmission plates 35. And a set of rotating shafts 36 are rotatably connected to the inner rear bottom end of the rear frame 31. The middle end of the rotating shaft 36 is fixedly connected to the bottom end of the second transmission plate 35.

[0048] Specifically, the second driving motor 32 can drive the rotating member 33 to rotate. When the rotating member 33 rotates, it can drive the top end of the first transmission plate 34 to rotate, so that the bottom end of the first transmission plate 34 drives the second transmission plate 35 to rotate up and down around the rotating shaft 36, and then drives the rotating shaft 36 to rotate left and right reciprocally.

[0049] Please refer to Figure 1 , Figure 7 and Figure 8 , the cleaning mechanism 4 includes a first swinging member 41, a crank arm 42, a second swinging member 43, a fixing plate 44, a front rod 45 and a cleaning brush 46. The front end of the rotating shaft 36 penetrates and extends to the inner rear end of the immersion tank 1 and is fixedly connected to a set of first swinging members 41, which can drive the first swinging members 41 to swing left and right. The front left and right ends of the first swinging members 41 are rotatably connected to a set of "L"-shaped crank arms 42. The other ends of the two crank arms 42 are rotatably connected to a set of second swinging members 43. The middle ends of the opposite surfaces of the two second swinging members 43 are rotatably connected to a fixing plate 44. The bottom end of the fixing plate 44 is fixedly connected to the inner bottom end of the immersion tank 1, facilitating the support and swing of the second swinging members 43. A set of cleaning brushes 46 are fixed to the front ends of the two second swinging members 43 through the front rods 45. When the two second swinging members 43 swing, they can drive the two cleaning brushes 46 to swing alternately, realizing the cleaning of the outer side of the circuit board moving backward.

[0050] Specifically, the rotating shaft 36 can drive the first swinging member 41 to swing left and right, and then drive the two groups of second swinging members 43 to swing through the crank arm 42. The two groups of second swinging members 43 can drive the left and right front rods 45 and the cleaning brush 46 to swing alternately, cleaning the outer side of the circuit board, effectively removing impurities on the outer side of the circuit board, and improving the cleaning efficiency.

[0051] The present invention provides a circuit board immersion cleaning device. Through the linkage mechanism 2 provided at the front top end of the immersion tank 1, the linkage mechanism 2 includes components such as a mounting frame 21, a cam 22, a first driving motor 23, a moving mechanism 24, and a clamping mechanism 25. The circuit board can be clamped by the clamping mechanism 25, and the clamping mechanism 25 and the circuit board can be pushed to reciprocate in the immersion tank 1 through the moving mechanism 24. Compared with the traditional circuit board immersion cleaning device that immerse the circuit board statically in the cleaning reagent, the present invention can not only stir the cleaning reagent through the circuit board, making the cleaning reagent fully contact with the circuit board, and the cleaning reagent can wash off the impurities on the circuit board, but also is beneficial for the cleaning mechanism 4 at the rear end in the immersion tank 1 to clean the circuit board, which can significantly improve the cleaning effect on the circuit board; through the cam 22 provided at the front end inside the mounting frame 21, the first driving motor 23 can drive the cam 22 to rotate, and a chute is provided at the outer end of the cam 22. It can drive the moving mechanism 24 to move back and forth, left and right through the cooperation with the sliding member 245 at the front end of the first moving column 242, facilitating the reciprocating and alternating pushing of the rear clamping mechanism 25, thereby driving the circuit board to move in the immersion tank 1 and stirring the cleaning reagent, which is more flexible compared with the traditional circuit board immersion cleaning device, and further enhances the cleaning effect on the circuit board; through the cleaning mechanism 4 provided at the rear end inside the immersion tank 1, the cleaning mechanism 4 includes components such as a first swinging member 41, a crank arm 42, a second swinging member 43, a fixing plate 44, a front rod 45, and a cleaning brush 46. Through the cooperation of each other, the swinging of the first swinging member 41, the crank arm 42, and the second swinging member 43 can drive the front rod 45 and the cleaning brush 46 to swing up and down, cleaning the circuit board in an intermittent manner, optimizing the cleaning method of the traditional circuit board immersion cleaning device that keeps the cleaning brush 46 in long-term contact with the circuit board. It can not only avoid damage to the components on the circuit board caused by the cleaning brush 46, but also effectively remove the impurities on the circuit board, improve the cleaning effect on the circuit board, and extend the service life of the circuit board.

[0052] The above are only the preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A circuit board immersion cleaning device, comprising an immersion tank (1), characterized in that: It further includes a linkage mechanism (2) provided at the front top end of the immersion tank (1), a set of driving mechanisms (3) provided at the middle rear end of the immersion tank (1), and a set of cleaning mechanisms (4) connected to the middle rear end inside the immersion tank (1); The linkage mechanism (2) includes a mounting frame (21), a cam (22), a first driving motor (23), a moving mechanism (24) and a clamping mechanism (25). A set of mounting frames (21) are provided at the front top end of the immersion tank (1). A set of cams (22) are connected to the front end inside the mounting frame (21). A set of first driving motors (23) are provided at the right front end of the mounting frame (21) corresponding to the position of the cam (22). A set of moving mechanisms (24) are provided at the middle end inside the mounting frame (21). Two sets of clamping mechanisms (25) are provided at the rear end of the mounting frame (21); Two sliding grooves are provided on the outer side of the cam (22), and the ends of the two sliding grooves away from the convex part of the cam (22) are staggered with each other.

2. The circuit board immersion cleaning device according to claim 1, characterized in that: The moving mechanism (24) includes a sliding plate (241), a first moving column (242), a first connecting ring (243), a first spring (244) and a sliding member (245). A set of sliding plates (241) are provided at the middle end of the mounting frame (21). A first moving column (242) is connected to the middle end of the sliding plate (241). A set of first connecting rings (243) are provided at both ends of the first moving column (242). The rear end of the front first connecting ring (243) is connected to the front end of the sliding plate (241) through a first spring (244), and a set of sliding members (245) are provided at the front end of the first moving column (242).

3. The circuit board immersion cleaning device according to claim 1, characterized in that: The components of the clamping mechanism (25) are all the same. The clamping mechanism (25) includes a second moving column (251), a second connecting ring (252), a second spring (253) and a fixture (254). A set of second moving columns (251) are provided at the left and right ends of the rear middle part inside the mounting frame (21). A set of second connecting rings (252) are provided at both ends of the second moving column (251). The rear ends of the front second connecting rings (252) are respectively connected to the rear end face inside the mounting frame (21) through a second spring (253). The rear ends of the two second moving columns (251) respectively penetrate and extend to the left and right ends of the rear of the mounting frame (21) and are connected to a set of fixtures (254).

4. The circuit board immersion cleaning device according to claim 1, characterized in that: The driving mechanism (3) includes a rear frame (31), a second driving motor (32), a rotating member (33), a first transmission plate (34), a second transmission plate (35) and a rotating shaft (36). A set of rear frames (31) are provided at the middle rear end of the immersion tank (1). A set of second driving motors (32) are connected to the top end of the rear frame (31). The bottom end of the driving shaft of the second driving motor (32) penetrates and extends to the top end inside the rear frame (31) and is connected to a set of rotating members (33). The other end of the rotating member (33) is connected to a set of first transmission plates (34). The other end of the first transmission plate (34) is connected to a set of second transmission plates (35). A set of rotating shafts (36) are provided at the bottom rear end inside the rear frame (31). The middle end of the rotating shaft (36) is connected to the bottom end of the second transmission plate (35).

5. The circuit board immersion cleaning device according to claim 4, characterized in that: The cleaning mechanism (4) includes a first swing member (41), a crank arm (42), a second swing member (43), a fixing plate (44), a front rod (45) and a cleaning brush (46). The front end of the rotating shaft (36) penetrates and extends to the inner rear end of the dipping pool (1) and is connected with a group of first swing members (41). A group of crank arms (42) are arranged at the front left and right ends of the first swing member (41). The other ends of the two groups of crank arms (42) are both connected with a group of second swing members (43). A group of fixing plates (44) are arranged at the middle ends of the opposite surfaces of the two groups of second swing members (43). The front ends of the two groups of second swing members (43) are both connected with a group of cleaning brushes (46) through the front rod (45).

6. The circuit board immersion cleaning device according to claim 5, characterized in that: The crank arm (42) is in an "L" shape, and both ends of the crank arm (42) are rotatably connected with the first swing member (41) and the second swing member (43).

7. The circuit board immersion cleaning device according to claim 4, characterized in that: The second transmission plate (35) is in an "L" shape, and one end thereof close to the rotating shaft (36) is fixedly sleeved on the outer middle end of the rotating shaft (36).

8. The circuit board immersion cleaning device according to claim 2, characterized in that: The sliding member (245) is in a rhombus shape and is rotatably connected with the first moving column (242).

9. The circuit board immersion cleaning device according to claim 2, characterized in that: The mounting bracket (21) is in a "U" shape, and the sliding plate (241) is slidably connected to the middle end of the mounting bracket (21).

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