PCB cleaning device
By combining an ultrasonic cleaning tank with an automated lifting mechanism, the problem of low efficiency in traditional cleaning methods is solved, achieving efficient and automated cleaning of PCB boards, improving cleaning results and equipment operational stability.
Patent Information
- Application Number
- CN202423133288.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Traditional air-blowing cleaning methods are not suitable for mass cleaning of PCB boards, resulting in cumbersome and inefficient cleaning steps. They are also difficult to effectively remove oil and dust from the chip surface, affecting soldering quality and potentially leading to high void ratios, which in turn affect heat dissipation performance and chip lifespan.
The ultrasonic cleaning tank, combined with a lifting mechanism and positioning components, enables automated batch cleaning of PCB boards. It utilizes the cavitation effect of ultrasound to remove stains and achieves automated operation through robotic arms and conveyor lines. It is equipped with a hot air drying device to improve cleaning efficiency and prevent damage.
It achieves efficient removal of dust and oil stains from the surface of PCB boards, simplifies the operation process, improves cleaning efficiency, reduces manual intervention, prevents collision damage between PCB boards, and ensures cleaning effect and automated operation of equipment.
Smart Images
Figure CN223681285U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a PCB cleaning device belongs to circuit board processing equipment technical field. BACKGROUND
[0002] The surface mount technology is often used to form the connection between the mounting component and the pad in the PCB production process, and the mounting component is easily affected by external factors to produce the cavity in the welding process, when the cavity rate of the product is high, the cavity will obviously affect the heat dissipation performance of the PCB, so that the chip is easy to have the temperature too high in the long time power on working process, causes the output power to drop or the chip burns down and so on bad influence.
[0003] One of the reasons of the cavity produced by the chip surface mount is that the dirt on the chip surface can affect the normal flow and adhesion performance of the solder, so that the bubble is produced in the welding process to form the cavity, in order to reduce the influence of the cavity, the chip surface can be cleaned to remove the oil stains and dust to reduce the influence of the cavity rate, and the conventional blowing cleaning PCB mode is not convenient for batch cleaning work of PCB, the actual cleaning process is complicated, which is not only low efficient but also difficult to guarantee the cleaning effect. SUMMARY
[0004] The utility model discloses a PCB cleaning device for cleaning the batch PCB, using the cavitation effect of ultrasonic cleaning tank to remove the dirt on the PCB surface efficiently and not easy to cause damage to the PCB surface, the automatic batch cleaning mode simplifies the manual operation and helps to improve the cleaning efficiency of the PCB.
[0005] To achieve the above object, the utility model adopts the following technical scheme:
[0006] The PCB cleaning device comprises an ultrasonic cleaning tank, a lifting mechanism arranged on one side of the ultrasonic cleaning tank and a plurality of placing plates, the output end of the lifting mechanism is provided with a mounting plate, the mounting plate can move along the vertical direction and be immersed in the cleaning liquid of the ultrasonic cleaning tank, a plurality of positioning pieces are arranged on the mounting plate along the vertical direction, the positioning pieces can be used for positioning and fixing the placing plates along the horizontal direction, a plurality of placing grooves are formed in the placing plates, and the placing grooves are used for placing the PCBs.
[0007] Specifically, a plurality of through openings are formed in the placing plates, the placing grooves are sink openings formed at the positions of the corresponding through openings, and the placing plates are further provided with limiting plates for preventing the PCBs from floating up and down.
[0008] Specific, the positioning member is symmetrically arranged on both sides of the mounting plate two groups of clamping plates, each group of clamping plates comprises two corresponding clamping plates, two adjacent clamping plates are used for clamping the placement plate.
[0009] Specific, the upper end face and the lower end face of the placement plate are provided with the insertion port, the clamping plate can be inserted between the adjacent two clamping plates, and the shortest distance between the adjacent two clamping plates is less than the thickness of the placement plate.
[0010] Specific, further comprising a conveying line and a mechanical hand, the conveying line is used for conveying the placement plate, and the mechanical hand is used for conveying the placement plate to the position of the positioning member so as to be positioned by the positioning member.
[0011] Specific, the placement plate is provided with not less than two positioning holes, the output end of the mechanical hand is provided with a connecting strip, and the connecting strip is provided with an insertion pipe corresponding to the positioning hole.
[0012] Specific, the conveying line is provided with a baffle, and the two sides of the conveying line are further provided with a limiting plate for limiting the offset amplitude of the placement plate.
[0013] Specific, further comprising a plurality of photoelectric sensors, the lifting mechanism comprises a hydraulic cylinder and a lifting rail, the lifting rail is provided with a connecting mechanism, the connecting mechanism is connected with the output end of the hydraulic cylinder and can be lifted, and the connecting mechanism is fixedly connected with the mounting plate, and the plurality of photoelectric sensors are used for detecting the height position of the connecting mechanism.
[0014] Specific, further comprising a hot air drying device, the hot air drying device is used for hot air drying the PCB plate on the placement plate in the rear of the conveying line.
[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:
[0016] The utility model discloses an ultrasonic cleaning equipment, utilizes the cavitation effect of the equipment and efficiently cleans the surface of the PCB plate, can effectively remove the dust and impurities such as oil stains on the surface of the PCB plate, in addition, through the additionally provided mounting plate mechanism, can orderly store multiple PCB plates during the cleaning process, can prevent the collision damage between the PCB plates and effectively improve the cleaning efficiency of the PCB plate, the equipment automatically carries the PCB plate, does not need manual operation, can effectively save human resources. ACCURACY OF DRAWINGS
[0017] Figure 1 It is the overall structure schematic diagram of the cleaning device provided by the utility model embodiment;
[0018] Figure 2It is partial structure schematic view of the cleaning device provided by the embodiment of the utility model;
[0019] Figure 3 It is the utility model Figure 2 The embodiment provides the structure of the cleaning device at A place amplification drawing;
[0020] Figure 4 It is the front view of the cleaning device provided by the embodiment of the utility model;
[0021] Reference signs: 1, ultrasonic cleaning tank;2, lifting mechanism;201, hydraulic cylinder;202, lifting rail;203, connecting mechanism;3, mounting plate;5, placing plate;6, limiting plate;7, clamping plate;8, conveying line;9, mechanical hand;10, connecting strip;11, plug-in pipe;12, baffle;13, guide plate. Specific implementation
[0022] The utility model will be further described below in combination with the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model.
[0023] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included one or more. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0024] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances. Embodiment
[0025] The utility model discloses an embodiment provides a kind of PCB cleaning device, for the cleaning of batch PCB, utilize the cavitation of ultrasonic cleaning mechanism High-efficiency removal of stain on the surface of PCB and not easy to cause damage to PCB surface, the mode of automatic batch cleaning provided simplifies manual operation and also helps to improve the cleaning efficiency of PCB board, to realize the structure function of device, here setting device includes ultrasonic cleaning tank 1, setting in ultrasonic cleaning tank 1 one side lifting mechanism 2 and several placing plates 5, wherein ultrasonic cleaning tank 1 can adopt existing ultrasonic cleaning mechanism, utilize the cavitation effect generated by ultrasonic high frequency vibration to remove dirt on the surface of PCB board, preferably frequency is above 40kHz, so that relatively small stain can be removed, pay attention to cleaning time when operating not too long, preferably between two minutes to ten minutes, can be adjusted appropriately according to the actual processing requirement of PCB board surface, cleaning solution can use deionized water, acidic or alkaline solution or other special cleaning liquid, to simultaneously regular multiple PCB board cleaning, here installing plate 3 is provided at the output end of lifting mechanism 2, as shown in Figure 1 , installing plate 3 can move along vertical direction and immerse in the cleaning solution of ultrasonic cleaning tank 1, and PCB is immersed in cleaning solution by being arranged on installing plate 3, to realize the integrated placement cleaning of PCB board, here several positioning members are arranged on installing plate 3 along vertical direction, wherein positioning member can be used for positioning and fixing placing plate 5 along horizontal direction (the specific fixing mode and structure are not limited here, can realize its function, as other preferred embodiment, can also refer to the description hereinafter), as shown in Figure 2 Or Figure 3 , multiple placing grooves are opened on placing plate 5, and placing groove is used for placing PCB board, that is, multiple PCB boards can be placed simultaneously on the same placing plate 5 along horizontal direction, and multiple placing plates 5 can be arranged on installing plate 3 along vertical direction, so that multiple PCB boards can be placed in order on installing plate 3, and these PCB boards are immersed in cleaning solution for ultrasonic cleaning, so that the cleaning efficiency of PCB board can be effectively improved. Considering that PCB board can be conveniently arranged on placing plate 5, multiple through holes can be opened on placing plate 5, the size of the through holes is slightly smaller than the shape of PCB board, and the placing groove is a sink opening opened at the corresponding through hole position, as shown in Figure 3 , when staff places PCB board on placing plate 5, can be placed directly through the sink opening, besides, the through hole can also expose the lower surface of PCB board while ensuring that the lower surface can be normally cleaned, to prevent PCB board from floating or deviating due to vibration, limiting plate 6 for preventing PCB board from floating up and down can also be provided on placing plate 5 to limit the position of PCB board.
[0026] The utility model discloses an embodiment provides a kind of PCB cleaning device, to simplify the positioning of placing plate 5, here can be set to positioning member is symmetrically set in the two groups of opposite clamping plates 7 of mounting plate 3 two sides, as shown in Figure 3 Each group of opposite clamping plates 7 includes two corresponding clamping plates, and the two adjacent clamping plates are used to clamp the placing plate 5, and preferably, an elastic layer can be provided on the opposite surface of the opposite clamping plate 7 to increase the friction of the placing plate 5 and enhance the fixing effect of the placing plate 5, preventing the placing plate 5 from slipping during cleaning.
[0027] The utility model discloses an embodiment provides a kind of PCB cleaning device, to ensure that the transverse position of placing plate 5 is not prone to change, can be as shown in Figure 3 The upper end surface and the lower end surface of the two sides of the placing plate 5 are provided with a plug-in interface, wherein the clamping plate can be inserted between the adjacent two clamping plates through the plug-in interface, and the shortest distance between the adjacent two clamping plates is less than the thickness of the placing plate 5. By this arrangement, the placing plate 5 can be limited in the non-sliding direction when it is plugged between the opposite clamping plates 7, i.e., the transverse position of the placing plate 5 can be ensured not to shift during cleaning, and the stability of the placing plate 5 can be improved and the plug-in positioning is also facilitated.
[0028] The utility model discloses an embodiment provides a kind of PCB cleaning device, to further improve the automatic cleaning process of device, here setting device also includes conveying line 8 and mechanical hand 9, specifically, conveying line 8 is used to convey placing plate 5, and mechanical hand 9 is used to convey placing plate 5 to the position of positioning member so as to be positioned by positioning member, wherein the output end of mechanical hand 9 can be provided with a corresponding grabbing module, and the specific mode is not limited here. In order to facilitate the grabbing of placing plate 5 by mechanical hand 9 and simplify the setting of mechanism, not less than two positioning holes can be provided on the placing plate 5, and a connecting strip 10 is installed on the output end of the mechanical hand 9, and the connecting strip 10 is provided with a plug-in pipe 11 corresponding to the positioning hole, as shown in Figure 3 When the mechanical hand 9 takes the placing plate 5, the plug-in pipe 11 is first inserted into the positioning hole of the placing plate 5, and after the insertion is completed, the placing plate 5 can be extracted and rotated, including the action of inserting the placing plate 5 between the corresponding opposite clamping plates 7, etc. The taking action of the placing plate 5 can be automatically realized without manual intervention. After the PCB is cleaned, it can also be placed on the conveying line 8 by the mechanical hand 9 for continuous transmission.
[0029] The utility model discloses an embodiment provides a kind of PCB cleaning device, since the positioning hole positioning mode is not convenient for the alignment of mechanical hand 9, therefore, in order to facilitate the accurate grabbing of placing plate 5 by mechanical hand 9, as shown in Figure 3As shown, the baffle 12 can be arranged on the conveying line 8, and guide plates 13 for limiting the offset amplitude of the placing plate 5 are arranged on both sides of the conveying line 8, wherein the guide plates 13 are used for correcting the conveying straightness of the placing plate 5, and the placing plate 5 is stopped after moving to the position of the baffle 12, so that the position of the positioning hole can be kept in a relatively accurate position, thereby facilitating the taking of the mechanical hand 9. Figure 2 Figure 2 As shown, a group of baffle plates 12 can be arranged at the front end and the rear end respectively, so that the middle position is left empty for the insertion of the pipe 11, and the end of the placing plate 5 is stopped after moving to the position of the baffle plate 12, so that the position of the positioning hole can be kept in a relatively accurate position, thereby facilitating the taking of the mechanical hand 9.
[0030] The PCB cleaning device provided by the embodiment of the utility model, since the multiple clamping plates 7 can be in the same mounting position when the mounting plate 3 is lifted, the control of the mechanical hand 9 can be simplified by this way, that is, the mechanical hand 9 can be assembled at the fixed position by controlling the multiple clamping plates 7 to move to the assembly position (a position of a certain fixed height) respectively, for this, the device further comprises multiple photoelectric sensors, specifically, the lifting mechanism 2 comprises a hydraulic cylinder 201 and a lifting rail 202, the lifting rail 202 is assembled with a connecting mechanism 203, the connecting mechanism 203 is connected with the output end of the hydraulic cylinder 201 and can be lifted, wherein the connecting mechanism 203 is fixedly connected with the mounting plate 3, at this time, the multiple photoelectric sensors arranged herein are used for detecting the height position of the connecting mechanism 203, each detection position corresponds to the height of the fixed group of clamping plates 7 and the preset fixed height is matched, so that the electrical signal can be given at the appropriate time, and it is ensured that each group of clamping plates 7 can stop at the preset height position and start the assembly work.
[0031] The PCB cleaning device provided by the embodiment of the utility model, in order to dry the PCB after cleaning, the device further comprises a hot air drying device (not shown in the figure), wherein the hot air drying device is used for drying the PCB on the placing plate 5 in the rear process of the conveying line 8, other drying methods can also be adopted, and the other embodiments are not limited.
[0032] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, without departing from the technical principle of the utility model, a plurality of improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection range of the utility model.
Claims
1. A PCB board cleaning device, characterized in that, The device includes an ultrasonic cleaning tank (1), a lifting mechanism (2) disposed on one side of the ultrasonic cleaning tank (1), and several placement plates (5). The output end of the lifting mechanism (2) is provided with a mounting plate (3). The mounting plate (3) can move vertically and be immersed in the cleaning liquid of the ultrasonic cleaning tank (1). The mounting plate (3) is provided with several positioning elements in the vertical direction. The positioning elements can be used to position and fix the placement plate (5) in the horizontal direction. The placement plate (5) is provided with multiple placement slots for placing PCB boards.
2. The PCB board cleaning device according to claim 1, characterized in that, The placement plate (5) has multiple openings, and the placement groove is a countersunk opening at the corresponding opening position. The placement plate (5) is also provided with a limiting plate (6) to prevent the PCB board from floating up and down.
3. The PCB board cleaning device according to claim 1, characterized in that, The positioning element consists of two sets of clamping plates (7) symmetrically arranged on both sides of the mounting plate (3). Each set of clamping plates (7) includes two corresponding clamping plates, and the two adjacent clamping plates are used to clamp the placement plate (5).
4. The PCB board cleaning device according to claim 3, characterized in that, The upper and lower surfaces of both sides of the placement plate (5) are provided with insertion interfaces. The clamps can be inserted between two adjacent clamps through the insertion interfaces. The shortest distance between two adjacent clamps is less than the thickness of the placement plate (5).
5. The PCB board cleaning device according to claim 1, characterized in that, It also includes a conveyor line (8) and a robot (9), the conveyor line (8) being used to convey the placement plate (5), and the robot (9) being used to convey the placement plate (5) to the position of the positioning member so that it can be positioned by the positioning member.
6. The PCB board cleaning device according to claim 5, characterized in that, The placement plate (5) has at least two positioning holes, and the output end of the robot (9) is equipped with a connecting strip (10). The connecting strip (10) is provided with a plug tube (11) that corresponds to the positioning hole.
7. A PCB board cleaning device according to claim 6, characterized in that, The conveyor line (8) is provided with baffles (12), and guide plates (13) are provided on both sides of the conveyor line (8) to limit the offset of the placement plate (5).
8. A PCB board cleaning device according to claim 1, characterized in that, It also includes multiple photoelectric sensors. The lifting mechanism (2) includes a hydraulic cylinder (201) and a lifting rail (202). A connecting mechanism (203) is mounted on the lifting rail (202). The connecting mechanism (203) is connected to the output end of the hydraulic cylinder (201) and can be lifted. The connecting mechanism (203) is fixedly connected to the mounting plate (3). Multiple photoelectric sensors are used to detect the height position of the connecting mechanism (203).
9. A PCB board cleaning device according to claim 5, characterized in that, It also includes a hot air drying device, which is used to dry the PCB board on the placement plate (5) with hot air in the downstream of the conveyor line (8).