Rigid printed circuit board processing device with bonding pad protection

Abstract

The utility model relates to the technical field of rigid printed circuit board processing, and discloses a rigid printed circuit board processing device with pad protection, which comprises a base, the inner wall of the base is fixedly connected with a two-way motor, and the driving ends of the two sides of the two-way motor are connected with spray heads through movable assemblies so as to adjust the positions of the spray heads. The device comprises a base, a connecting frame is slidably connected to the inner wall of the base, collecting frames are connected to the two sides of the inner wall of the connecting frame through buckle assemblies so as to be used for disassembling and assembling the collecting frames, a filter screen is fixedly connected to the inner wall of each collecting frame, and a conveying device is fixedly connected to the inner wall of the base. According to the utility model, the positions of the nozzles are respectively adjusted by controlling the driving ends at the two sides of the bidirectional motor, so that the device is suitable for circuit boards with different sizes, and meanwhile, the positions of the nozzles can be adjusted according to the positions of the bonding pads, so that small-size board cleaning liquid is prevented from being splashed and wasted, areas which cannot be touched by traditional symmetrical adjustment are accurately covered, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of rigid printed circuit board processing technology, and in particular to a rigid printed circuit board processing device with pad protection. Background Technology

[0002] During the manufacturing process of rigid printed circuit boards, the pads are prone to performance degradation or even scrap due to external debris and other factors. The cleaning process removes microscopic contaminants, avoiding the risk of major failures caused by debris. It protects the pads in critical processes and ensures the reliability and yield of the PCB.

[0003] Most cleaning equipment on the market adopts a fixed nozzle layout design. When cleaning circuit boards of a single size, such equipment can achieve a stable cleaning effect. However, when dealing with circuit boards of different sizes, it exposes obvious limitations, making it difficult to fully cover the board surface. This results in some areas not being thoroughly cleaned, which affects the subsequent soldering quality.

[0004] In response to the technical problem of difficulty in adjusting the nozzle position, this application proposes a rigid printed circuit board processing device with pad protection. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where it is difficult to adjust the nozzle position. This invention proposes a rigid printed circuit board processing device with pad protection. By controlling the two drive ends of a bidirectional motor, the position of the nozzle can be adjusted separately, making it suitable for circuit boards of different sizes. Simultaneously, the nozzle position can be adjusted according to the position of the pads, avoiding waste of cleaning fluid on small-sized boards, accurately covering areas that traditional symmetrical adjustments cannot reach, and improving cleaning efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A rigid printed circuit board processing device with solder pad protection includes a base. A bidirectional motor is fixedly connected to the inner wall of the base. Both drive ends of the bidirectional motor are connected to nozzles via movable components for adjusting the position of the nozzles. A connecting frame is slidably connected to the inner wall of the base. Collection frames are connected to both sides of the inner wall of the connecting frame via snap-fit ​​components for assembling and disassembling the collection frames. A filter screen is fixedly connected to the inner wall of the collection frame. A conveying device is fixedly connected to the inner wall of the base. A drain pipe is fixedly connected to the rear side of the inner wall of the base.

[0008] Furthermore, the active component includes a main bevel gear fixedly connected to the drive ends on both sides of the bidirectional motor, a secondary bevel gear meshing with the outer wall of the main bevel gear, and a threaded rod fixedly connected to the other end of each secondary bevel gear, the outer wall of which is rotatably connected to the inner wall of the base.

[0009] Furthermore, the outer wall of the threaded rod is threadedly connected to a sliding frame, the inner wall of the sliding frame is slidably connected to a slider, the bottom end of the slider is fixedly connected to the top of the nozzle, and the outer wall of the sliding frame is slidably connected to the inner wall of the base.

[0010] Furthermore, a connecting pipe is fixedly connected to the right end of the nozzle, and the outer wall of the connecting pipe is fixedly connected to the inner wall of the base.

[0011] Furthermore, the buckle assembly includes slots at both ends of the collection frame, each slot having a locking block on its inner wall. The locking blocks are shaped to fit the slots, and their outer walls are slidably connected to the inner wall of the base.

[0012] Furthermore, rotating rods are rotatably connected to both sides of the inner wall of the connecting frame, and the other end of each rotating rod is rotatably connected to the inner wall of the card block.

[0013] Furthermore, a tension spring is fixedly connected to the bottom end of the connecting frame, and the other end of the tension spring is fixedly connected to the inner wall of the base.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the position of the nozzle is adjusted by controlling the two drive ends of the bidirectional motor, so that it can be used for circuit boards of different sizes. At the same time, the position of the nozzle can be adjusted according to the position of the solder pads, avoiding the waste of cleaning fluid splashing on small-sized boards, accurately covering areas that cannot be reached by traditional symmetrical adjustment, and improving cleaning efficiency.

[0016] 2. In this utility model, by collecting the debris that falls off during rinsing and taking it out for processing, it is possible to avoid the accumulation of debris in the cleaning tank to form particulate sludge, avoid affecting the uniformity of the rinsing fluid flow rate, ensure the consistency of each cleaning, and reduce equipment failures caused by particulate wear. Attached Figure Description

[0017] Figure 1 This is a perspective view of a rigid printed circuit board processing device with pad protection proposed in this utility model.

[0018] Figure 2 This is a left-side sectional view of the base of a rigid printed circuit board processing device with solder pad protection proposed in this utility model.

[0019] Figure 3 This is a right-side sectional view of the base of a rigid printed circuit board processing device with solder pad protection proposed in this utility model.

[0020] Figure 4 This is a cross-sectional view of the sliding frame of a rigid printed circuit board processing device with pad protection proposed in this utility model.

[0021] Figure 5 This is a front sectional view of the base of a rigid printed circuit board processing device with solder pad protection proposed in this utility model.

[0022] Figure 6 This is a diagram of the slot structure of a rigid printed circuit board processing device with solder pad protection proposed in this utility model.

[0023] Figure 7 This invention relates to a structural diagram of a conveying device for a rigid printed circuit board processing apparatus with solder pad protection.

[0024] Legend:

[0025] 1. Base; 2. Conveying device; 3. Bidirectional motor; 4. Main bevel gear; 5. Secondary bevel gear; 6. Threaded rod; 7. Sliding frame; 8. Slider; 9. Nozzle; 10. Connecting pipe; 11. Drain pipe; 12. Collection frame; 13. Filter screen; 14. Connecting frame; 15. Tension spring; 16. Rotating rod; 17. Locking block; 18. Locking groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 2-4 As shown, one embodiment of this utility model provides a rigid printed circuit board processing device with solder pad protection, including a base 1. A bidirectional motor 3 is fixedly connected to the inner wall of the base 1. A nozzle 9 is provided on both drive ends of the bidirectional motor 3. A main bevel gear 4 is fixedly connected to both drive ends of the bidirectional motor 3. A secondary bevel gear 5 is meshed with the outer wall of the main bevel gear 4. A threaded rod 6 is fixedly connected to the other end of the secondary bevel gear 5. The outer wall of the threaded rod 6 is rotatably connected to the inner wall of the base 1. A sliding frame 7 is threadedly connected to the outer wall of the threaded rod 6. A slider 8 is slidably connected to the inner wall of the sliding frame 7. The bottom end of the slider 8 is fixedly connected to the top end of the nozzle 9. The outer wall of the sliding frame 7 is slidably connected to the inner wall of the base 1. A connecting pipe 10 is fixedly connected to the right end of the nozzle 9. The outer wall of the connecting pipe 10 is fixedly connected to the inner wall of the base 1 for adjusting the position of the nozzle 9.

[0028] Specifically, a controller is installed at the front end of the base 1. The controller is electrically connected to the conveyor device 2 and the bidirectional motor 3. (See reference below.) Figure 7The conveying rollers are connected by chains and sprockets and driven by an electric motor to transport the circuit boards. On the left side of the connecting pipe 10 is a folded pipe to accommodate the position variation of the nozzle 9 for conveying cleaning fluid. By controlling the two drive ends of the bidirectional motor 3, the position of the nozzle 9 can be adjusted to accommodate circuit boards of different sizes. At the same time, the position of the nozzle 9 can be adjusted according to the position of the solder pads to avoid splashing and wasting cleaning fluid on small-sized boards, accurately cover areas that traditional symmetrical adjustments cannot reach, and improve cleaning efficiency.

[0029] Reference Figure 1 , Figure 5 and Figure 6 As shown, a connecting frame 14 is slidably connected to the inner wall of the base 1, a collection frame 12 is provided on the outer wall of the connecting frame 14, a filter screen 13 is fixedly connected to the inner wall of the collection frame 12, a conveying device 2 is fixedly connected to the inner wall of the base 1, a drain pipe 11 is fixedly connected to the rear side of the inner wall of the base 1, slots 18 are provided at both ends of the collection frame 12, and a block 17 is provided on the inner wall of each slot 18. The shape of the block 17 fits the slot 18, and the outer wall of the block 17 is slidably connected to the inner wall of the base 1. Rotating rods 16 are rotatably connected to both sides of the inner wall of the connecting frame 14, and the other end of each rotating rod 16 is rotatably connected to the inner wall of the block 17. A tension spring 15 is fixedly connected to the bottom end of the connecting frame 14, and the other end of the tension spring 15 is fixedly connected to the inner wall of the base 1 for disassembly and assembly of the collection frame 12.

[0030] Specifically, after collecting the debris, first pull the connecting frame 14 upwards and insert the collecting frame 12 into the base 1. After installation, release the connecting frame 14 and use the tension spring 15 to lock the two side blocks 17 into the slots 18 to limit the collecting frame 12. By collecting the debris that falls during rinsing and taking it out for processing, it can prevent it from accumulating in the cleaning tank to form particulate sludge, avoid affecting the uniformity of the rinsing fluid flow rate, ensure the consistency of each cleaning, and reduce equipment failures caused by particulate wear.

[0031] Working principle: First, the circuit board is placed on the conveyor device 2, and the conveyor roller is rotated by the rear motor to transport the circuit board to the underside of the nozzle 9. The controller controls the two drive ends of the bidirectional motor 3 to drive the main bevel gears 4 on both sides to rotate. The main bevel gears 4 drive the secondary bevel gears 5 to rotate, and the secondary bevel gears 5 drive the threaded rod 6 to rotate. The threaded rod 6 drives the sliding frame 7 on the outer wall to move, and drives the internal slider 8 and the nozzle 9 to move in four directions to adjust the spray position. The spray is then directed into the nozzle 9 through the connecting pipe 10. The cleaning fluid is sprayed onto the circuit board for cleaning. During the cleaning process, the cleaning fluid causes the debris on the circuit board to fall downwards and be filtered through the filter screen 13 on the lower side, blocking the debris in the collection frame 12 for collection. The cleaning fluid falls to the lower side of the base 1 and is discharged through the drain pipe 11. Next, by pulling the connecting frame 14 upwards, the connecting frame 14 drives the rotating rods 16 on both sides to rotate, and drives the locking blocks 17 on both sides to slide outwards. The locking blocks 17 are removed from the locking slots 18, and the collection frame 12 can be removed by the handle to collect the collected debris.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rigid printed circuit board processing apparatus with pad protection, characterized in that, The device includes a base (1), a bidirectional motor (3) is fixedly connected to the inner wall of the base (1), and nozzles (9) are connected to both sides of the bidirectional motor (3) via movable components to adjust the position of the nozzles (9). A connecting frame (14) is slidably connected to the inner wall of the base (1), and a collection frame (12) is connected to both sides of the inner wall of the connecting frame (14) via snap-fit ​​components to facilitate the assembly and disassembly of the collection frame (12). A filter screen (13) is fixedly connected to the inner wall of the collection frame (12), a conveying device (2) is fixedly connected to the inner wall of the base (1), and a drain pipe (11) is fixedly connected to the rear side of the inner wall of the base (1).

2. The rigid printed circuit board processing apparatus with pad protection according to claim 1, characterized in that: The active component includes a main bevel gear (4) fixedly connected to the drive ends on both sides of the bidirectional motor (3). The outer walls of the main bevel gear (4) are meshed with secondary bevel gears (5). The other end of the secondary bevel gears (5) is fixedly connected with a threaded rod (6). The outer walls of the threaded rods (6) are rotatably connected to the inner wall of the base (1).

3. The rigid printed circuit board processing apparatus with pad protection according to claim 2, characterized in that: The outer wall of the threaded rod (6) is threaded with a sliding frame (7), and the inner wall of the sliding frame (7) is slidably connected with a slider (8). The bottom end of the slider (8) is fixedly connected to the top of the nozzle (9), and the outer wall of the sliding frame (7) is slidably connected to the inner wall of the base (1).

4. The rigid printed circuit board processing apparatus with pad protection according to claim 3, characterized in that: The nozzle (9) is fixedly connected to a connecting pipe (10) at its right end, and the outer wall of the connecting pipe (10) is fixedly connected to the inner wall of the base (1).

5. The rigid printed circuit board processing apparatus with pad protection according to claim 1, characterized in that: The buckle assembly includes slots (18) at both ends of the collection frame (12). Each slot (18) has a block (17) on its inner wall. The shape of the block (17) matches the slot (18). The outer wall of the block (17) is slidably connected to the inner wall of the base (1).

6. The rigid printed circuit board processing apparatus with pad protection according to claim 5, characterized in that: The inner walls of the connecting frame (14) are rotatably connected to both sides of a rotating rod (16), and the other end of the rotating rod (16) is rotatably connected to the inner wall of the card block (17).

7. A rigid printed circuit board processing apparatus with pad protection according to claim 6, characterized in that: A tension spring (15) is fixedly connected to the bottom of the connecting frame (14), and the other end of the tension spring (15) is fixedly connected to the inner wall of the base (1).

Images