Surface treatment equipment for PCB (Printed Circuit Board) processing

Abstract

The invention relates to the field of circuit boards, in particular to surface treatment equipment for PCB (printed circuit board) processing, which comprises a bottom plate, a soaking box and a driving assembly, the bottom plate is fixedly connected with a soaking box; the bottom plate is connected with a driving assembly used for driving the fixing frame and the parts on the fixing frame to move. The device further comprises a fixing frame and the like. The driving assembly is connected with a fixing frame; the fixed frame is fixedly connected with a plurality of electric push rods I; the telescopic ends of all the electric push rods I are jointly and fixedly connected with a connecting plate, and the connecting plate is slidably connected with the fixing frame. An electric push rod III is controlled to enable a rectangular plate to drive a connecting pipe and an absorption barrel to move towards one side close to a corresponding blind hole, the absorption barrel and corresponding absorption cotton are separated from each other until the absorption barrel enters the blind hole, redundant soaking liquid in the blind hole is absorbed and cleaned through the sponge on the surface of the absorption barrel, and the cleaning efficiency is improved. The problems that the thickness of a protective layer in the blind hole is relatively high and the draining efficiency is low due to the fact that residual soaking liquid in the blind hole cannot be thoroughly drained in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of circuit boards, and more particularly to a surface treatment apparatus for PCB circuit board processing. Background Technology

[0002] After PCB circuit board processing, during the next electronic component soldering process, a chemical solution, OSP (organic solder resist), needs to be applied to the surface of the circuit board to protect the exposed copper and prevent oxidation. To improve the coating efficiency, the existing coating method involves simultaneously contacting multiple circuit boards with the immersion solution in the tank, allowing the solution to adhere to the surface of the circuit boards. Then, the circuit boards are removed to drain excess solution. Since there are many blind holes on the circuit boards, some solution can enter the blind holes during the immersion process, leaving residue inside during the draining process. Current methods use a wobbling motion to allow the residual solution to flow out naturally, but this method cannot completely drain the solution from the blind holes. The residual solution leads to low drying efficiency in the blind holes and a relatively thicker protective layer inside them, affecting PCB performance and reducing draining efficiency. Summary of the Invention

[0003] In order to overcome the shortcomings of existing technology, which cannot completely drain the residual soaking liquid in blind holes, thus reducing the draining efficiency of the PCB body and affecting the performance of the PCB, this invention provides a surface treatment device for PCB circuit board processing.

[0004] The technical solution is as follows: A surface treatment device for PCB circuit board processing includes a base plate, an immersion tank, and a drive assembly; the immersion tank is fixedly connected to the base plate; the base plate is connected to a drive assembly for driving the movement of a fixed frame and the parts thereon; the device also includes a fixed frame; the drive assembly is connected to the fixed frame; a plurality of electric push rods I are fixedly connected to the fixed frame; the telescopic ends of all the electric push rods I are fixedly connected to a connecting plate, and the connecting plate is slidably connected to the fixed frame; the connecting plate has a plurality of rectangular slots; a plurality of clamping plates are fixedly connected to the connecting plate, and the clamping plates slide within the corresponding rectangular slots, and each pair of clamping plates in the left and right directions is used to clamp a circuit board body; a plurality of cameras are fixedly connected to the connecting plate, and the cameras are located between each pair of clamping plates in the left and right directions; the connecting plate is connected to a cleaning assembly for cleaning excess immersion liquid in blind holes.

[0005] Preferably, the cleaning assembly includes an electric slide rail, a slider, a connecting block, an electric push rod II, a connecting rod, an electric push rod III, a rectangular plate, a connecting pipe, an absorbent cylinder, electric rollers, and absorbent cotton. The connecting plate has several grooves. Several electric slide rails are fixedly connected to the connecting plate. Each electric slide rail is slidably connected to a slider. All sliders are fixedly connected to a connecting block, and the connecting block slides within its corresponding groove. Each connecting block is fixedly connected to an electric push rod II. A connecting rod is fixedly connected to the telescopic end of each electric push rod II, and the connecting rod is slidably connected to the corresponding connecting block. Each connecting rod is fixedly connected to an electric push rod III. A rectangular plate is fixedly connected to the telescopic end of each electric push rod III. A connecting pipe is rotatably connected to each rectangular plate. An absorbent cylinder located below the corresponding connecting rod is connected to each connecting pipe, and a sponge is provided on the outside of the absorbent cylinder. Several electric rollers are rotatably connected to each connecting rod. All electric rollers are wound with absorbent cotton, and the absorbent cotton passes over the outside of the corresponding absorbent cylinder.

[0006] Preferably, the connecting pipe has several air holes, and the absorption cylinder is made of a deformable material.

[0007] Preferably, the connecting pipe and the absorption cylinder are detachably connected.

[0008] Preferably, it also includes hollow tubes; the fixing frame is fixed with several hollow tubes, and each circuit board body is located between two hollow tubes; each hollow tube has several conveying holes.

[0009] Preferably, it also includes a liquid collection hopper, an electric guide rail II, and a moving block II; the fixed frame is fixedly connected to two electric guide rails II; each electric guide rail II is slidably connected to a moving block II; the two moving blocks II are jointly fixedly connected to a liquid collection hopper located on the lower side of the corresponding circuit board body.

[0010] Preferably, each liquid collecting hopper has several circular holes, and each circular hole is equipped with a solenoid valve; the liquid collecting hopper is arranged in an inverted triangle.

[0011] Preferably, it also includes infrared lamps; the connecting rod is hollow and made of transparent material; each connecting rod has several infrared lamps fixed inside, and there are gaps between the infrared lamps located in the same connecting rod.

[0012] As a preferred option, it also includes supplementary lighting; each connecting pipe is fixed with a supplementary lighting.

[0013] Preferably, each absorption cylinder has an arc-shaped section.

[0014] The beneficial effects of this invention are as follows: This invention controls the electric push rod III to move the rectangular plate, connecting pipe and absorbent cylinder towards the side closer to the corresponding blind hole. The absorbent cylinder and the corresponding absorbent cotton separate from each other until the absorbent cylinder enters the blind hole. The excess soaking liquid inside the blind hole is absorbed and cleaned by the sponge on the surface of the absorbent cylinder. This avoids the problem that the existing technology cannot completely drain the residual soaking liquid in the blind hole, resulting in a relatively thicker protective layer and low draining efficiency inside the blind hole.

[0015] During the soaking process, an external pump is controlled to draw the surface of the soaking solution through a hollow tube, removing harmful gases in a timely manner. As the circuit board moves downward into the soaking solution, the relative movement between the hollow tube and the circuit board allows the delivery holes of the hollow tube to draw away dust, impurities, and air present in blind holes on the surface of the circuit board, improving the adhesion effect of the soaking solution.

[0016] By powering on the supplementary light, the camera observes the position of the blind hole, and then the camera controls the electric slide rail, electric push rod II, and electric push rod III to move the corresponding absorption cylinder and supplementary light to the corresponding blind hole interior area, so that the supplementary light illuminates the inside of the blind hole, thereby making the inside of the blind hole dry quickly and improving the draining efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the surface treatment equipment for PCB circuit board processing disclosed in this invention; Figure 2 This is a schematic diagram of the combined structure of the fixing frame and the immersion tank in the surface treatment equipment for PCB circuit board processing disclosed in this invention. Figure 3 This is a schematic diagram of the first internal partial structure of the fixing frame disclosed in the surface treatment equipment for PCB circuit board processing of the present invention; Figure 4 This is a schematic diagram of a second type of internal partial structure of the fixing frame disclosed in the surface treatment equipment for PCB circuit board processing of the present invention; Figure 5 This is a partial structural diagram of the combination of the connecting rod, electric push rod III, rectangular plate, connecting tube and absorption cylinder disclosed in the surface treatment equipment for PCB circuit board processing of the present invention. Figure 6 This is a schematic diagram of the internal structure of the absorption cylinder of the surface treatment equipment for PCB circuit board processing disclosed in this invention; Figure 7 This is a schematic diagram of the internal structure of the connecting rod disclosed in the surface treatment equipment for PCB circuit board processing of the present invention.

[0018] Explanation of reference numerals in the attached drawings: 1-Base plate, 2-Soaking tank, 3-Electric guide rail I, 4-Moving block I, 6-Mounting plate, 8-Circuit board body, 101-Fixing frame, 102-Electric push rod I, 103-Connecting plate, 104-Clamping plate, 105-Camera, 106-Electric slide rail, 107-Slider, 108-Connecting block, 109-Electric push rod II, 1010-Connecting rod, 1011-Electric push rod III 1012-Rectangular plate, 1013-Connecting pipe, 1014-Absorbent cylinder, 1015-Electric roller, 1016-Absorbent cotton, 201-Hollow tube, 202-Collection hopper, 203-Electric guide rail II, 204-Moving block II, 301-Infrared lamp, 302-Supplemental light, 1001-Arc-shaped part, 11-Rectangular groove, 81-Blind hole, 1031-Slide groove, 2021-Round hole, 2001-Conveying hole. Detailed Implementation

[0019] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0020] Example 1: A surface treatment device for PCB circuit board processing, such as... Figures 1-7 As shown, it includes a base plate 1, an immersion tank 2, and a drive assembly; the base plate 1 is fixedly connected to the immersion tank 2; the base plate 1 is connected to the drive assembly; It also includes a fixed frame 101, electric push rods I 102, a connecting plate 103, a clamping plate 104, a camera 105, and a cleaning assembly; the driving assembly is connected to the fixed frame 101; the fixed frame 101 is fixedly connected to two electric push rods I 102; the telescopic ends of all electric push rods I 102 are fixedly connected to the connecting plate 103, and the connecting plate 103 is slidably connected to the fixed frame 101; the connecting plate 103 has several rectangular slots 11; the connecting plate 103 is fixedly connected to several rectangularly distributed clamping plates 104, and the clamping plates 104 slide in the corresponding rectangular slots 11; the connecting plate 103 is fixedly connected to several cameras 105, and the cameras 105 are located between every two clamping plates 104 in the left and right directions; the connecting plate 103 is connected to a cleaning assembly for cleaning excess soaking liquid in the blind hole 81.

[0021] The drive assembly includes an electric guide rail I3, a moving block I4, and a mounting plate 6; the base plate 1 is fixedly connected to two electric guide rails I3; each electric guide rail I3 is slidably connected to a moving block I4; each of the two moving blocks I4 is rotatably connected to a mounting plate 6, and the mounting plate 6 is fixedly connected to the fixed frame 101.

[0022] The cleaning assembly includes an electric slide rail 106, a slider 107, a connecting block 108, an electric push rod II 109, a connecting rod 1010, an electric push rod III 1011, a rectangular plate 1012, a connecting pipe 1013, an absorbent cylinder 1014, an electric roller 1015, and absorbent cotton 1016. The connecting plate 103 has several grooves 1031. The connecting plate 103 is bolted to two electric slide rails 106. Each electric slide rail 106 is slidably connected to a slider 107. All sliders 107 are fixedly connected to a connecting block 108, and the connecting block 108 slides within its corresponding groove 1031. Each connecting block 108 is fixedly connected to an electric push rod II 109. Each telescopic end of the electric push rod II 109 is fixedly connected to a connecting rod III 1011. 10, and the connecting rod 1010 is slidably connected to the corresponding connecting block 108; each connecting rod 1010 has an electric push rod Ⅲ 1011 bolted to its lower end; each electric push rod Ⅲ 1011 has a rectangular plate 1012 fixed to its telescopic end; each rectangular plate 1012 has a connecting pipe 1013 rotatably connected to it; each connecting pipe 1013 has an absorbent cylinder 1014 connected to it, and the absorbent cylinder 1014 is provided with a sponge on its outside, and the absorbent cylinder 1014 is located below the corresponding connecting rod 1010; each connecting rod 1010 has two electric rollers 1015 rotatably connected to its lower end; all the electric rollers 1015 are wound together with an absorbent cotton 1016, and the absorbent cotton 1016 passes around the outside of the corresponding absorbent cylinder 1014.

[0023] The connecting pipe 1013 has several air inlets, and the absorption cylinder 1014 is made of rubber.

[0024] The connecting pipe 1013 and the absorption cylinder 1014 are detachably connected.

[0025] In use, first, inject OSP, a chemical soaking solution specifically for PCB circuit boards, into the soaking tank 2. Initially, the fixing frame 101 is located at the rear of the soaking tank 2. Connect the external delivery pump to the connecting pipe 1013. Then, the operator controls the telescopic end of the electric push rod I 102 to drive the connecting plate 103 and the clamping plate 104 upward until the clamping plate 104 is higher than the upper side of the fixing frame 101. Next, clamp multiple circuit board bodies 8 onto each pair of clamping plates 104 in the left and right directions. Then, control the telescopic end of the electric push rod I 102 to drive the connecting plate 103 and the clamping plate 104 downward. The clamping plate 104 slides in the rectangular groove 11 until the lower end of the clamping plate 104 containing the circuit board body 8 is flush with the lower side of the fixing frame 101. Next, control the electric guide rail I3 to move the moving block I4 to move the mounting plate 6 and the fixing frame 101 forward until the fixing frame 101 is directly above the soaking tank 2. Figure 1 As shown, there is a certain distance (20 centimeters) between the circuit board body 8 and the immersion liquid surface at this time.

[0026] Next, the telescopic end of the electric push rod I 102 is controlled to drive the connecting plate 103 and the clamping plate 104 to slide slowly downwards until the clamping plate 104 completely immerses the circuit board body 8 into the soaking tank 2, thereby bringing the circuit board body 8 into contact with the soaking liquid in the soaking tank 2, so that the soaking liquid adheres to the surface of the circuit board body 8. During the soaking process, some soaking liquid enters into the blind holes 81 on the circuit board body 8, making it easy for soaking liquid to remain inside the blind holes 81 during the draining process. Therefore, after the soaking is completed, the telescopic end of the electric push rod I 102 is controlled to drive the connecting plate 103, the clamping plate 104 and the circuit board body 8 to rise slowly until the circuit board body 8 is removed from the soaking liquid and returns to the initial position. Most of the soaking liquid adhering to the surface of the circuit board body 8 falls downwards back into the soaking tank 2. At this time, the soaking liquid remaining in the blind holes 81 cannot flow out downwards under its own gravity.

[0027] Next, the camera 105 observes the position of the blind hole 81 on the circuit board body 8. The camera 105 controls the electric slide rail 106 to make the slider 107 move the connecting block 108 and its connections horizontally to the left and right. Then, the camera 105 controls the electric push rod II 109 to move the connecting rod 1010 and its components vertically, positioning the connecting tube 1013 and the absorption cylinder 1014 in front of the corresponding blind hole 81. Then, the camera controls the electric push rod III 1011 to make the rectangular plate 1012 move the connecting tube 1013 and the absorption cylinder 1014 closer to the corresponding blind hole 81. The absorbent cotton 1016 separates from each other until the absorbent cylinder 1014 enters the blind hole 81. The sponge on the surface of the absorbent cylinder 1014 absorbs and cleans the excess soaking liquid inside the blind hole 81, avoiding the problem that the existing technology cannot completely drain the residual soaking liquid in the blind hole, resulting in a relatively thicker protective layer and low draining efficiency in the blind hole. It should be noted that since multiple circuit board bodies 8 are soaked at the same time, and the gap between the multiple circuit board bodies 8 is small, the existing robotic arm is inconvenient to clean the excess soaking liquid in the blind hole 81 between multiple circuit board bodies 8.

[0028] After cleaning, control the electric push rod Ⅲ1011 to move the rectangular plate 1012, connecting pipe 1013 and absorbent cylinder 1014 away from the corresponding blind hole 81, so that the absorbent cylinder 1014 re-contacts the absorbent cotton 1016. At this time, control one electric roller 1015 to rotate to wind up the absorbent cotton 1016, and control the other electric roller 1015 to rotate to unwind the absorbent cotton 1016. The connecting pipe 1013 and absorbent cylinder 1014 rotate relative to each other under the action of friction between them and the absorbent cotton 1016, so that the absorbent cotton 1016 absorbs the soaking liquid in the sponge on the outside of the absorbent cylinder 1014, so that the sponge on the outside of the absorbent cylinder 1014 maintains its adsorption capacity.

[0029] Considering that the blind holes 81 on the circuit board body 8 are of different sizes, if the blind hole 81 has a larger diameter, the absorption cylinder 1014 will have difficulty absorbing all the excess soaking liquid in the blind hole 81, and if the blind hole 81 has a smaller diameter, the absorption cylinder 1014 will have difficulty being placed into the blind hole 81. At this time, by controlling the external delivery pump to supply gas to the connecting pipe 1013, the gas is inflated or deflated through the inflation hole to the rubber absorption cylinder 1014. Under its own elasticity, the absorption cylinder 1014 undergoes adaptive expansion or contraction deformation, thereby changing the diameter of the absorption cylinder 1014 and improving the adaptability of the absorption cylinder 1014.

[0030] Considering that the elasticity of the rubber absorber 1014 weakens after long-term expansion and contraction, the absorber 1014 is connected to the connecting pipe 1013 in a detachable manner, so that the absorber 1014 can be easily removed from the connecting pipe 1013 for quick replacement.

[0031] Example 2, based on Example 1, such as Figure 5 As shown, it also includes hollow tubes 201; a fixed frame 101 is fixedly connected to several hollow tubes 201, and each circuit board body 8 is located between two hollow tubes 201; several conveying holes 2001 are opened on the front, rear and lower sides of each hollow tube 201.

[0032] It also includes a liquid collection hopper 202, an electric guide rail II 203 and a moving block II 204; the fixed frame 101 is fixedly connected to two electric guide rails II 203; each electric guide rail II 203 is slidably connected to a moving block II 204; the two moving blocks II 204 are jointly fixedly connected to a liquid collection hopper 202, and the liquid collection hopper 202 is located on the lower side of the corresponding circuit board body 8.

[0033] Each liquid collecting hopper 202 has several circular holes 2021, and each circular hole 2021 is equipped with a solenoid valve; the liquid collecting hopper 202 is arranged in an inverted triangle.

[0034] In this embodiment, an external pump is connected to the hollow tube 201. Considering that the circuit board body 8 will generate harmful gases (VOCs) and acid mist that are detrimental to the air environment when it is immersed in the immersion solution in the immersion tank 2, which will affect the physical and mental health of the operators, the external pump is controlled to draw the surface of the immersion solution through the hollow tube 201 during the immersion process to remove the harmful gases generated in time. At the same time, if there are dust impurities or a lot of air in the blind holes 81 on the surface of the circuit board body 8 before it moves downward into the immersion solution, the immersion solution will not adhere firmly to the surface of the circuit board body 8, and air bubbles and cavities will easily appear on the surface of the circuit board body 8. Therefore, during the process of the circuit board body 8 moving downward into the immersion solution, the relative movement between the hollow tube 201 and the circuit board body 8 allows the delivery hole 2001 of the hollow tube 201 to draw away the dust impurities and air in the blind holes 81 attached to the surface of the circuit board body 8, thereby improving the adhesion effect of the immersion solution.

[0035] When the circuit board body 8 moves away from the soaking liquid after soaking, some of the soaking liquid will fall into the soaking tank 2 and splash out, causing waste. Therefore, during the draining process, the electric guide rail II 203 is controlled to move the moving block II 204 to drive the liquid collection hopper 202 to move until the liquid collection hopper 202 is located directly below the corresponding circuit board body 8. The liquid collection hopper 202 on the lower side of the clamping plate 104 collects the soaking liquid falling down on the circuit board body 8. Initially, the liquid collection hopper 202 is located on the side away from the circuit board body 8 to prevent the liquid collection hopper 202 from obstructing the downward movement and soaking of the circuit board body 8.

[0036] During the draining process, the solenoid valve in the circular hole 2021 is first closed, so that the circular hole 2021 is closed and the liquid collection hopper 202 collects the fallen paint soaking liquid. After the draining is completed, the solenoid valve in the circular hole 2021 is opened, so that the circular hole 2021 is opened and the soaking liquid in the liquid collection hopper 202 flows back into the soaking tank 2 from the circular hole 2021. Since the liquid collection hopper 202 is set in an inverted triangle, the soaking liquid continues to flow out from the circular hole 2021 under its own gravity, reducing the residue of soaking liquid in the liquid collection hopper 202.

[0037] Example 3, based on Example 2, such as Figure 7 As shown, it also includes an infrared lamp 301; the connecting rod 1010 is hollow and made of transparent material; each connecting rod 1010 has two symmetrical infrared lamps 301 fixed inside, and there are gaps between the infrared lamps 301 located in the same connecting rod 1010.

[0038] It also includes a supplementary light 302; each connecting pipe 1013 is fixed with a supplementary light 302.

[0039] Each absorption cylinder 1014 has an arc-shaped portion 1001 on one side near the corresponding circuit board body 8.

[0040] In this embodiment, an external air pump is connected to the connecting rod 1010. In Embodiment 1, when the absorbent cotton 1016 squeezes and absorbs the soaking liquid in the absorbent cylinder 1014, acid mist and harmful gases are generated, which pollute the surrounding working environment. Therefore, when the absorbent cotton 1016 squeezes and absorbs the liquid in the absorbent cylinder 1014, the external air pump is started and the absorbent cotton 1016 is sucked up through the hollow connecting rod 1010 to remove the generated acid mist and VOCs gases.

[0041] During the draining process after the circuit board body 8 is soaked, the soaking liquid on the surface of the circuit board body 8 needs to be dried and cured so that the soaking liquid is firmly adsorbed on the surface of the circuit board body 8 to form a protective layer. At this time, the electric push rod II 109, the connecting rod 1010 and the parts on it are first controlled to move down until the lower end of the infrared lamp 301 in the connecting rod 1010 is flush with the lower side of the circuit board body 8. Then, the infrared lamp 301 is powered on so that the heat radiation generated by the infrared light emitted by the infrared lamp 301 passes through the transparent connecting rod 1010 and simultaneously irradiates the circuit board body 8 on both the front and rear sides. During the irradiation process, the electric slide rail 106 is controlled to make the slider 107 drive the connecting block 108 and the connected parts to move horizontally so that the infrared lamp 301 dries and cures the soaking liquid on both sides of each circuit board body 8.

[0042] Furthermore, during the irradiation curing process, the external air pump is activated, and air is blown downwards through the hollow connecting rod 1010 along the gap between the two infrared lamps 301 to dissipate heat from the back of the two infrared lamps 301, preventing poor heat dissipation of the infrared lamps 301 in the relatively narrow space of the connecting rod 1010 from affecting the irradiation efficiency.

[0043] Considering that the light from the infrared lamp 301 cannot accurately illuminate the narrow blind hole 81, the soaking liquid inside the blind hole 81 cannot be completely dried and cured, affecting the overall drying efficiency of the circuit board body 8, therefore, by energizing the supplementary light 302, and then observing the position of the blind hole 81 through the camera 105, the camera 105 controls the electric slide rail 106, electric push rod II 109, and electric push rod III 1011 to move the corresponding connecting pipe 1013 and supplementary light 302 to the area of ​​the corresponding blind hole 81, so that the supplementary light 302 illuminates the inside of the blind hole 81, thereby making the inside of the blind hole 81 dry quickly and improving the drying efficiency.

[0044] Furthermore, considering that in Embodiment 1, when the connecting tube 1013 and the absorption tube 1014 enter the blind hole 81, the resistance between the outer wall of the absorption tube 1014 and the inner wall of the blind hole 81 is relatively large, making it difficult for the absorption tube 1014 to enter the blind hole 81, an arc-shaped portion 1001 is provided on the side of the absorption tube 1014 near the circuit board body 8 to reduce the resistance when the absorption tube 1014 enters the inner wall of the blind hole 81, making it easier for the absorption tube 1014 to enter the blind hole 81.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A surface treatment device for PCB circuit board processing, comprising a base plate (1), an immersion tank (2), and a drive assembly; the base plate (1) is fixedly connected to the immersion tank (2); the base plate (1) is connected to a drive assembly for driving a fixed frame (101) and the parts thereon to move; characterized in that, It also includes a fixed frame (101); the drive assembly is connected to the fixed frame (101); the fixed frame (101) is fixedly connected to several electric push rods I (102); the telescopic ends of all electric push rods I (102) are fixedly connected to a connecting plate (103), and the connecting plate (103) is slidably connected to the fixed frame (101); the connecting plate (103) has several rectangular slots (11); the connecting plate (103) is fixedly connected to several clamping plates (104), and the clamping plates (104) slide in the corresponding rectangular slots (11), and each pair of clamping plates (104) in the left and right directions is used to clamp a circuit board body (8); the connecting plate (103) is fixedly connected to several cameras (105), and the cameras (105) are located between each pair of clamping plates (104) in the left and right directions; the connecting plate (103) is connected to a cleaning assembly for cleaning excess soaking liquid in the blind hole (81).

2. The surface treatment equipment for PCB circuit board processing according to claim 1, characterized in that, The cleaning assembly includes an electric slide rail (106), a slider (107), a connecting block (108), an electric push rod II (109), a connecting rod (1010), an electric push rod III (1011), a rectangular plate (1012), a connecting pipe (1013), an absorbent cylinder (1014), an electric roller (1015), and absorbent cotton (1016); the connecting plate (103) has several grooves (1031); several electric slide rails (106) are fixedly connected to the connecting plate (103); each electric slide rail (106) is slidably connected to a slider (107); all sliders (107) are fixedly connected to a connecting block (108), and the connecting block (108) slides in the corresponding groove (1031); each connecting block (108) is fixedly connected to an electric push rod II (109); the extension and retraction of each electric push rod II (109) Each end is fixedly connected to a connecting rod (1010), and the connecting rod (1010) is slidably connected to the corresponding connecting block (108); each connecting rod (1010) is fixedly connected to an electric push rod III (1011); each electric push rod III (1011) has a rectangular plate (1012) fixedly connected to its telescopic end; each rectangular plate (1012) is rotatably connected to a connecting pipe (1013); each connecting pipe (1013) is connected to an absorption cylinder (1014) located below the corresponding connecting rod (1010), and the outer side of the absorption cylinder (1014) is provided with a sponge; each connecting rod (1010) is rotatably connected to several electric rollers (1015); all the electric rollers (1015) are wound together with an absorbent cotton (1016), and the absorbent cotton (1016) passes around the outer side of the corresponding absorption cylinder (1014).

3. The surface treatment equipment for PCB circuit board processing according to claim 2, characterized in that, The connecting pipe (1013) has several air holes, and the absorption cylinder (1014) is made of a deformable material.

4. The surface treatment equipment for PCB circuit board processing according to claim 2, characterized in that, The connecting pipe (1013) and the absorption cylinder (1014) are detachably connected.

5. The surface treatment equipment for PCB circuit board processing according to claim 1, characterized in that, It also includes hollow tubes (201); a fixed frame (101) is fixed with several hollow tubes (201), and each circuit board body (8) is located between two hollow tubes (201); each hollow tube (201) has several conveying holes (2001).

6. The surface treatment equipment for PCB circuit board processing according to claim 1, characterized in that, It also includes a liquid collection hopper (202), an electric guide rail II (203) and a moving block II (204); the fixed frame (101) is fixedly connected to two electric guide rails II (203); each electric guide rail II (203) is slidably connected to a moving block II (204); the two moving blocks II (204) are jointly fixedly connected to a liquid collection hopper (202) located on the lower side of the corresponding circuit board body (8).

7. The surface treatment equipment for PCB circuit board processing according to claim 6, characterized in that, Each liquid collecting hopper (202) has several circular holes (2021), and each circular hole (2021) is equipped with a solenoid valve; the liquid collecting hopper (202) is arranged in an inverted triangle.

8. The surface treatment equipment for PCB circuit board processing according to claim 2, characterized in that, It also includes infrared lamps (301); the connecting rod (1010) is hollow and made of transparent material; each connecting rod (1010) has several infrared lamps (301) fixed inside, and there are gaps between the infrared lamps (301) located in the same connecting rod (1010).

9. The surface treatment equipment for PCB circuit board processing according to claim 8, characterized in that, It also includes a supplementary light (302); each connecting tube (1013) is fixed with a supplementary light (302).

10. A surface treatment device for PCB circuit board processing according to claim 2, characterized in that, Each absorption cylinder (1014) has an arc-shaped section (1001).

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