Oil removal device for PCB nickel, palladium and gold

Abstract

The utility model relates to the technical field of circuit board processing, in particular to an oil removing device for PCB nickel palladium gold, which comprises a cleaning box, a positioning mechanism, a clamping mechanism and an oil removing mechanism, a sliding groove is arranged at the bottom of the cleaning box, a first screw rod is arranged in the sliding groove, a driving motor is arranged on the outer side wall of the cleaning box, and the output end of the driving motor is connected with the first screw rod; the positioning mechanism comprises a positioning seat, positioning plates and springs, a positioning groove is formed in the positioning seat, the two positioning plates are arranged in the positioning groove, the springs are connected between the two positioning plates and the side wall of the positioning groove, a circuit board is placed between the two positioning plates, a sliding block is arranged at the bottom of the positioning seat, and the sliding block is arranged on a first lead screw; the clamping mechanism is arranged above the positioning plate and clamps the two ends of the circuit board, and the oil removing mechanism is arranged on the two sides of the circuit board and removes oil on the side wall of the circuit board. The circuit board oil removal device can adapt to installation of circuit boards with different thicknesses, meanwhile, double-face oil removal of the circuit boards can be rapidly achieved, and the oil removal efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically to a degreasing device for nickel-palladium-gold PCBs. Background Technology

[0002] In the circuit board manufacturing process, especially for PCBs with nickel-palladium-gold surface treatment, the degreasing process is a critical step to ensure the quality of subsequent electroplating or soldering. During the production process, various contaminants such as oil, fingerprints, and dust often remain on the surface of the circuit board. If these contaminants are not effectively removed, they will directly affect the adhesion and uniformity of the electroplated layer, thereby affecting the electrical performance and reliability of the circuit board.

[0003] Existing PCB degreasing equipment uses spray-type chemical cleaning, which pressurizes the cleaning agent to a certain level using a high-pressure pump and then sprays it onto the circuit board surface through specialized nozzles. The high-pressure impact accelerates the contact and reaction between the cleaning agent and the circuit board surface, while also helping to peel off the oil stains from the circuit board surface.

[0004] However, in spray-type chemical cleaning, the pressure from the high-pressure pump causes the nozzle to spray the cleaning agent onto the circuit board surface, resulting in significant pressure that affects the stability of the circuit board. Furthermore, when degreasing both sides of the circuit board is required, the circuit board must be flipped over for degreasing again, resulting in low degreasing efficiency. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a degreasing device for nickel-palladium-gold PCBs, which solves the problem of insufficient stability during degreasing of circuit boards, and simultaneously degreases both sides of the circuit board, improving work efficiency.

[0006] To achieve the above objectives, according to an embodiment of the first aspect of this utility model, a degreasing device for nickel-palladium-gold PCBs is provided, comprising a cleaning box, a positioning mechanism, a clamping mechanism, and a degreasing mechanism. The cleaning box has a groove at its bottom, and a first lead screw is disposed within the groove. A drive motor is disposed on the outer wall of the cleaning box, and the output end of the drive motor is connected to the first lead screw. The positioning mechanism includes a positioning seat, a positioning plate, and a spring. A positioning groove is provided on the positioning seat, and two positioning plates are disposed within the positioning groove. Springs connect the two positioning plates to the side wall of the positioning groove, and a circuit board is placed between the two positioning plates. A slider is disposed at the bottom of the positioning seat, and the slider is mounted on the first lead screw. The clamping mechanism is disposed above the positioning plates to clamp both ends of the circuit board. The degreasing mechanism is disposed on both sides of the circuit board to degrease the side walls of the circuit board.

[0007] As a further embodiment of this utility model: the clamping mechanism includes a clamping plate and a connecting rod, a clamping groove is provided at the bottom of the positioning groove, a second lead screw is provided in the clamping groove, one end of the connecting rod is provided on the second lead screw, and the other end is fixedly connected to the bottom of the clamping plate, the clamping plate is slidably disposed above the positioning plate; a dual-axis motor is provided at the center of the positioning groove, and the output ends of the two ends of the dual-axis motor are respectively connected to the second lead screw.

[0008] As a further embodiment of this utility model: the degreasing mechanism includes a degreasing plate, brush bristles and a telescopic motor. The degreasing plate is provided with a plurality of brush bristles on the side near the circuit board. The telescopic motor is located on the outer wall of the cleaning box, and its output end is connected to the side of the degreasing plate away from the circuit board. The brush bristles are in contact with the side wall of the circuit board.

[0009] As a further embodiment of this utility model: the degreasing plate has a cavity inside, the top of the degreasing plate has a liquid inlet hole that communicates with the cavity, and the side wall of the degreasing plate near the circuit board has a plurality of nozzles that communicate with the cavity.

[0010] As a further embodiment of this utility model: the nozzles are evenly arranged around the bristles.

[0011] As a further embodiment of this utility model: cleaning fluid is injected into the cavity through the liquid inlet hole.

[0012] As a further embodiment of this invention, the size of the slider is adapted to the groove.

[0013] As a further embodiment of this utility model: an extension plate is provided on the top of the positioning plate, the extension plate and the positioning plate are an integral structure, and the extension plate extends toward the side away from the circuit board.

[0014] As a further embodiment of this utility model: an arc-shaped surface is provided at the connection between the positioning plate and the extension plate.

[0015] As a further aspect of this invention, the cleaning fluid is an organic solvent cleaning agent.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model places the circuit board between two positioning plates of the positioning mechanism. The positioning plates are elastically supported by springs, which can adapt to circuit boards of different thicknesses. At the same time, the two ends of the circuit board are clamped and fixed by the clamping mechanism. After the fixing is completed, the drive motor drives the first lead screw to rotate, and the slider drives the positioning seat to move back and forth along the slide groove. Then, the degreasing mechanism degreases both sides of the circuit board, which can quickly achieve double-sided degreasing of the circuit board and improve degreasing efficiency.

[0018] 2. This utility model uses a telescopic motor to move the degreasing plate to both sides of the circuit board until the brush bristles come into contact with the side walls of the circuit board. Cleaning liquid is injected into the cavity inside the degreasing plate through the liquid inlet hole. The cleaning liquid is evenly sprayed onto the side walls of the circuit board through the nozzle. As the circuit board moves back and forth under the action of the drive motor, the brush bristles remove oil from the side walls of both sides of the circuit board, thereby improving the degreasing efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional price diagram of a degreasing device for nickel-palladium-gold PCBs.

[0020] Figure 2 This is a schematic diagram of the circuit board installation.

[0021] Figure 3 A schematic diagram of the positioning mechanism installation.

[0022] Figure 4 This is a schematic diagram of the clamping mechanism installation.

[0023] Figure 5 This is a schematic diagram of the three-dimensional structure of the oil removal mechanism.

[0024] The attached diagram shows the following labels: 1. Cleaning box; 11. Slide groove; 12. First lead screw; 13. Drive motor; 2. Positioning seat; 21. Positioning groove; 22. Slider; 23. Clamping groove; 24. Second lead screw; 25. Dual-axis motor; 3. Positioning plate; 31. Extension plate; 32. Arc-shaped surface; 33. Spring; 4. Clamping plate; 41. Connecting rod; 5. Degreasing plate; 51. Brush bristles; 52. Cavity; 53. Liquid inlet; 54. Nozzle; 6. Telescopic motor; 7. Circuit board. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] like Figures 1 to 5As shown, an oil removal device for nickel-palladium-gold PCBs includes a cleaning box 1, a positioning mechanism, a clamping mechanism, and an oil removal mechanism. The cleaning box 1 has a groove 11 at its bottom, and a first lead screw 12 is installed within the groove 11. A drive motor 13 is installed on the outer wall of the cleaning box 1, and the output end of the drive motor 13 is connected to the first lead screw 12. The positioning mechanism includes a positioning seat 2, a positioning plate 3, and a spring 33. The positioning seat 2 has a positioning groove 21, and two positioning plates 3 are installed within the positioning groove 21. Springs 33 connect the two positioning plates 3 to the side wall of the positioning groove 21, and a circuit board 7 is placed between the two positioning plates 3. A slider 22 is installed at the bottom of the positioning seat 2 and is mounted on the first lead screw 12. The clamping mechanism is positioned above the positioning plate 3 to clamp both ends of the circuit board 7. The oil removal mechanism is positioned on both sides of the circuit board 7 to remove oil from the side walls of the circuit board 7.

[0027] First, the circuit board 7 is placed between the two positioning plates 3 of the positioning mechanism. The positioning plates 3 are elastically supported by springs 33, which can accommodate circuit boards 7 of different thicknesses. Then, the two ends of the circuit board 7 are clamped by the clamping mechanism to improve the stability of the circuit board 7 installation. After the circuit board 7 is clamped, the drive motor 13 on the outside of the cleaning box 1 is started, which drives the first lead screw 12 to rotate. Through the slider 22, the positioning seat 2, including the circuit board 7, moves back and forth along the slide groove 11, realizing the degreasing work of the degreasing mechanism on both sides of the circuit board 7.

[0028] The clamping mechanism includes a clamping plate 4 and a connecting rod 41. The bottom of the positioning groove 21 is provided with a clamping groove 23. A second lead screw 24 is provided in the clamping groove 23. One end of the connecting rod 41 is provided on the second lead screw 24, and the other end is fixedly connected to the bottom of the clamping plate 4. The clamping plate 4 is slidably disposed above the positioning plate 3. A dual-axis motor 25 is provided at the center of the positioning groove 21. The output ends of the dual-axis motor 25 are respectively connected to the second lead screw 24.

[0029] Start the dual-axis motor 25 to drive the second lead screw 24 to rotate, which in turn drives the clamping plate 4 to move towards both ends of the circuit board 7 via the connecting rod 41, thereby clamping and fixing the circuit board 7.

[0030] The degreasing mechanism includes a degreasing plate 5, brush bristles 51, and a telescopic motor 6. Several brush bristles 51 are arranged on the side of the degreasing plate 5 closest to the circuit board 7. The telescopic motor 6 is located on the outer wall of the cleaning box 1, and its output end is connected to the side of the degreasing plate 5 away from the circuit board 7. The brush bristles 51 are in contact with the side wall of the circuit board 7. A cavity 52 is provided inside the degreasing plate 5. A liquid inlet 53 is provided at the top of the degreasing plate 5, communicating with the cavity 52. ​​Several nozzles 54 are provided on the side wall of the degreasing plate 5 closest to the circuit board 7, communicating with the cavity 52. ​​Cleaning fluid is injected into the cavity 52 through the liquid inlet 53; the cleaning fluid is an organic solvent cleaning agent.

[0031] The degreasing plate 5 is moved to both sides of the circuit board 7 by the telescopic motor 6 until the brush bristles 51 are in contact with the side wall of the circuit board 7. Cleaning liquid, such as organic solvent cleaning agent, is injected into the cavity 52 inside the degreasing plate 5 through the liquid inlet 53. The cleaning liquid is evenly sprayed on the side wall of the circuit board 7 through the nozzle 54. As the circuit board 7 moves back and forth under the action of the drive motor 13, the brush bristles 51 perform degreasing work on the side walls of both sides of the circuit board 7, thereby improving the degreasing efficiency.

[0032] The nozzles 54 are evenly distributed around the bristles 51 to ensure that the cleaning fluid can fully contact the sidewalls of the circuit board 7. This improves the degreasing effect and avoids waste of the cleaning fluid.

[0033] The slider 22 is adapted to the slide groove 11, which ensures the stable movement of the positioning mechanism within the slide groove 11 and improves the stability and reliability of the device.

[0034] The top of the positioning plate 3 is provided with an extension plate 31, which is an integral structure with the positioning plate 3, and the extension plate 31 extends toward the side away from the circuit board 7; an arc-shaped surface 32 is provided at the connection between the positioning plate 3 and the extension plate 31.

[0035] By setting the extension plate 31 and the positioning plate 3 as an integrated structure, the stability of the positioning plate 3 in positioning the circuit board 7 is improved. At the same time, the arc surface 32 is set to make the circuit board 7 fit into the middle of the positioning plate 3, reducing wear.

[0036] The working principle of this utility model is as follows: First, the circuit board 7 to be degreased is placed between the two positioning plates 3 of the positioning mechanism. The positioning plates 3 are elastically supported by springs 33, thus accommodating circuit boards 7 of different thicknesses and ensuring that the circuit board 7 is stably placed in the positioning groove 21. Then, the dual-axis motor 25 of the clamping mechanism is started, driving the second lead screw 24 to rotate, which drives the clamping plate 4 to move towards both ends of the circuit board 7 through the connecting rod 41, until the clamping plate 4 tightly clamps both ends of the circuit board 7.

[0037] After the circuit board 7 is stably clamped, the drive motor 13 on the outside of the cleaning box 1 is activated. This motor drives the first lead screw 12 to rotate, which in turn drives the entire positioning mechanism, including the circuit board 7, to move back and forth along the slide groove 11 via the slider 22. At the same time, the telescopic motor 6 of the degreasing mechanism is activated, moving the degreasing plate 5 to both sides of the circuit board 7 until the bristles 51 are in close contact with the sidewalls of the circuit board 7. At this time, organic solvent cleaning agent is injected into the cavity 52 through the liquid inlet 53 at the top of the degreasing plate 5. The cleaning agent is sprayed onto the sidewalls of the circuit board 7 through the nozzles 54 evenly distributed around the bristles 51.

[0038] As the circuit board 7 moves back and forth, the bristles 51, under the action of the cleaning agent, efficiently remove oil from the side walls on both sides of the circuit board 7.

[0039] The above embodiments are only used to illustrate the technical methods of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of this utility model without departing from the spirit and scope of the technical methods of this utility model.

Claims

1. A PCB nickel palladium gold oil removal device, comprising a cleaning box (1), a positioning mechanism, a clamping mechanism and an oil removal mechanism, a chute (11) is opened in the bottom of the cleaning box (1), a first lead screw (12) is arranged in the chute (11), a drive motor (13) is arranged on the outer side wall of the cleaning box (1), and the output end of the drive motor (13) is connected with the first lead screw (12); characterized in that The positioning mechanism comprises a positioning seat (2), a positioning plate (3) and a spring (33), a positioning groove (21) is opened in the positioning seat (2), two positioning plates (3) are arranged in the positioning groove (21), the spring (33) is connected between the two positioning plates (3) and the side wall of the positioning groove (21) respectively, a circuit board (7) is placed between the two positioning plates (3), a sliding block (22) is arranged on the first lead screw (12); the clamping mechanism is arranged above the positioning plate (3) and clamps the two ends of the circuit board (7); and the oil removal mechanism is arranged on the two sides of the circuit board (7) and removes oil from the side wall of the circuit board (7).

2. The oil removing device for PCB nickel-palladium-gold according to claim 1, characterized in that, The clamping mechanism comprises a clamping plate (4) and a connecting rod (41), a clamping groove (23) is opened in the bottom of the positioning groove (21), a second lead screw (24) is arranged in the clamping groove (23), one end of the connecting rod (41) is arranged on the second lead screw (24), the other end is fixedly connected with the bottom of the clamping plate (4), and the clamping plate (4) is slidably arranged above the positioning plate (3); a double-shaft motor (25) is arranged at the center of the positioning groove (21), and the output ends of the two ends of the double-shaft motor (25) are connected with the second lead screw (24) respectively.

3. The oil removing device for PCB nickel-palladium-gold according to claim 1, characterized in that, The oil removal mechanism comprises an oil removal plate (5), a brush (51) and a telescopic motor (6), a plurality of brushes (51) are arranged on the side of the oil removal plate (5) close to the circuit board (7), the telescopic motor (6) is arranged on the outer side wall of the cleaning box (1), the output end of the telescopic motor (6) is connected with the side of the oil removal plate (5) away from the circuit board (7), and the brush (51) is in contact with the side wall of the circuit board (7).

4. The oil removing device for PCB nickel-palladium-gold according to claim 3, characterized in that, A cavity (52) is arranged in the oil removal plate (5), a liquid inlet hole (53) is arranged on the top of the oil removal plate (5), the liquid inlet hole (53) is in communication with the cavity (52), a plurality of nozzles (54) are arranged on the side wall of the oil removal plate (5) close to the circuit board (7), and the nozzles (54) are in communication with the cavity (52).

5. The oil removing device for PCB nickel-palladium-gold according to claim 4, characterized in that, The nozzles (54) are uniformly arranged around the brushes (51).

6. The oil removing device for PCB nickel-palladium-gold according to claim 4, characterized in that, The liquid inlet hole (53) injects cleaning liquid into the cavity (52).

7. The oil removing device for PCB nickel-palladium-gold according to claim 1, characterized in that, The size of the sliding block (22) is matched with the size of the chute (11).

8. The oil removing device for PCB nickel-palladium-gold according to claim 1, characterized in that, An extension plate (31) is arranged on the top of the positioning plate (3), the extension plate (31) and the positioning plate (3) are an integral structure, and the extension plate (31) extends towards the side away from the circuit board (7).

9. The oil removing device for PCB nickel-palladium-gold according to claim 8, characterized in that, An arc surface (32) is arranged at the connection between the positioning plate (3) and the extension plate (31).

10. The oil removing device for PCB nickel-palladium-gold according to claim 6, characterized in that, The cleaning liquid is an organic solvent cleaner.

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