PCBA mainboard cleaning mechanism

Abstract

The utility model relates to PCBA mainboard cleaning technical field, concretely is a kind of PCBA mainboard cleaning mechanism, including mobile turnover table, cleaning device and PCBA mainboard cleaning positioning frame.The mobile turnover table top is equipped with circulating movement subassembly and turnover subassembly, the PCBA mainboard cleaning positioning frame is connected with mobile slider by turnover shaft, and under the drive of circulating movement subassembly, it moves along mobile slide rail transversely;When mobile slider travels to rack base plate, turnover gear is engaged with turnover rack, drives turnover shaft to rotate 180 ° and realizes the automatic turnover of PCBA mainboard.The positioning frame four corners are equipped with elastic positioning pressboard, and the fixing of the mainboard of different thickness is adapted by screw rod-screw cylinder adjusting mechanism.This mechanism realizes double-sided cleaning by automation movement and turnover, avoids manual operation, improves cleaning efficiency, simultaneously adopts elastic pressure holding structure and protects mainboard element, and the structure is compact, and applicability is strong.

Description

Technical Field

[0001] This utility model relates to the field of PCBA motherboard cleaning technology, specifically a PCBA motherboard cleaning mechanism. Background Technology

[0002] PCBA motherboards are printed circuit boards with components already assembled, and are a core component of electronic devices. Cleaning PCBA motherboards requires professional and precise equipment to ensure that contaminants (such as flux residue, dust, oil, etc.) are removed without damaging electronic components. Common cleaning tools include spray cleaners, vapor phase cleaners, and inline cleaning systems. However, most of these cleaning tools have a common problem when cleaning PCBA motherboards: they can only clean one side of the PCBA motherboard, lacking the ability to flip the motherboard, or requiring manual flipping for cleaning of the other side. Therefore, to address the aforementioned problems, this technical solution proposes a PCBA motherboard cleanroom mechanism. Utility Model Content

[0003] The purpose of this invention is to provide a PCBA motherboard cleaning mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A PCBA motherboard cleaning mechanism includes a movable rotating table, a cleaning device, and a PCBA motherboard cleaning positioning frame. The cleaning device is provided in multiple sets and is fixedly installed on the upper side of one side of the movable rotating table by mounting rods. The PCBA motherboard cleaning positioning frame is placed below the cleaning device and moves and rotates. The side of the PCBA motherboard cleaning positioning frame facing the top of the movable rotating table is connected to a movable rotating mechanism. Under the control of the movable rotating mechanism, the PCBA motherboard placed on the PCBA motherboard cleaning positioning frame is moved and rotated for double-sided automated cleaning below the cleaning device. The PCBA motherboard cleaning and positioning frame is designed with a rectangular frame structure, and each of its four corners is equipped with a set of PCBA motherboard positioning components. The PCBA motherboard positioning components adaptively position the four corners of the PCBA motherboard placed on the PCBA motherboard cleaning and positioning frame. The moving and flipping mechanism includes a circulating moving component that is circulantly moved on the top of the moving and flipping table. A flipping component is connected to one side of the circulating moving component. The circulating moving component is connected to the PCBA motherboard cleaning and positioning frame. While moving, it controls the PCBA motherboard cleaning and positioning frame to flip over, thereby realizing double-sided cleaning of the PCBA motherboard on the PCBA motherboard cleaning and positioning frame.

[0005] Compared with the prior art, the beneficial effects of this utility model are: by using a moving-flipping linkage mechanism, manual operation is eliminated, thus improving efficiency.

[0006] The elastic pressure plate, adjusted by springs and screws, can accommodate motherboards of different thicknesses, thus preventing component damage.

[0007] The movement path is precisely controllable through the cooperation of servo motors and lead screws.

[0008] Space is saved through integrated design, making it suitable for production line integration. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of a PCBA motherboard cleaning mechanism.

[0010] Figure 2 This is a front view schematic diagram of a PCBA motherboard cleanroom mechanism.

[0011] Figure 3 for Figure 2 A magnified structural diagram of A in the diagram.

[0012] Figure 4 for Figure 2 A magnified structural diagram of B in the diagram.

[0013] The components include: a movable tilting table 10, a cleaning device 11, a PCBA motherboard cleaning positioning frame 12, a tilting shaft 13, a shaft seat 14, a movable slide rail 15, a movable slider 16, a tilting gear 17, a rack base plate 18, a tilting rack 19, a lead screw groove 20, a servo motor 21, a lead screw nut 22, a lead screw 23, a mounting rod 24, a PCBA motherboard positioning component 25, a positioning base plate 26, a lifting rod 27, a spring 29, a connecting plate 30, a screw barrel 31, a screw 32, and a positioning pressure plate 33. Detailed Implementation

[0014] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0015] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Please see Figures 1-4 A PCBA motherboard cleaning mechanism includes a movable flipping table 10, a cleaning device 11, and a PCBA motherboard cleaning positioning frame 12. The cleaning device 11 is provided in multiple sets and is fixedly installed on the upper side of one side of the movable flipping table 10 by mounting rods 24. The PCBA motherboard cleaning positioning frame 12 is placed below the cleaning device 11 and moves and flips. The side of the PCBA motherboard cleaning positioning frame 12 facing the top of the movable flipping table 10 is connected to a movable flipping mechanism. That is, under the control of the movable flipping mechanism, the PCBA motherboard placed on the PCBA motherboard cleaning positioning frame 12 is moved and flipped under the cleaning device 11 for double-sided automated cleaning. The PCBA motherboard cleaning and positioning frame 12 is configured as a rectangular frame structure, and each of its four corners is provided with a set of PCBA motherboard positioning parts 25. The PCBA motherboard positioning parts 25 adaptively position the four corners of the PCBA motherboard placed on the PCBA motherboard cleaning and positioning frame 12. The moving and flipping mechanism includes a circulating moving component that is circulantly moved on the top of the moving and flipping table 10. A flipping component is connected to one side of the circulating moving component. The circulating moving component is connected to the PCBA motherboard cleaning and positioning frame 12. While moving, it controls the PCBA motherboard cleaning and positioning frame 12 to flip over, thereby realizing double-sided cleaning of the PCBA motherboard on the PCBA motherboard cleaning and positioning frame 12.

[0019] In this embodiment of the invention, the cleaning device 11 can be a spray cleaner, a vapor phase cleaner, etc., with its output end pointing vertically downwards, automatically rinsing the PCBA motherboards on the PCBA motherboard cleaning positioning frame 12 that it passes through, that is, the sum of its spray area covers the moving path of the PCBA motherboard cleaning positioning frame 12. It should be noted that, regarding the operation and selection of the cleaning device 11, since the focus of this technical solution is to control the PCBA motherboard on the PCBA motherboard cleaning positioning frame 12 to move and rotate for cleaning, the cleaning device 11 only needs to be set above the moving direction of the PCBA motherboard cleaning positioning frame 12 to rinse it. Therefore, it is not fully illustrated or its operating principle is explained, but this does not affect the completeness of this technical solution.

[0020] In one embodiment of the present invention, the sum of the spraying and rinsing areas of the multiple sets of cleaning devices 11 is greater than the moving area of ​​the PCBA motherboard cleaning positioning frame 12, ensuring that the PCBA motherboard cleaning positioning frame 12 can be rinsed and cleaned by the cleaning devices 11 when it moves the PCBA motherboard to each position. As a preferred embodiment of the present invention, the PCBA motherboard positioning component 25 includes a positioning base plate 26 fixed to one side of the top edge of the PCBA motherboard cleaning positioning frame 12. The positioning base plate 26 has a telescopic hole inside, and a lifting rod 27 is elastically arranged inside the telescopic hole. The bottom of the lifting rod 27 is elastically connected to the bottom of the telescopic hole by a spring 29. A connecting plate 30 is installed at the top of the lifting rod 27, and a positioning pressure plate 33 is connected to the bottom of the connecting plate 30 by a telescopic component. The positioning pressure plate 33 elastically presses and positions the PCBA motherboard placed on the PCBA motherboard cleaning positioning frame 12. The bottom end of the spring 29 is rotatably connected to the bottom of the telescopic hole via a connecting block. This is used to maintain the rotation of the lifting rod 27 and allow for vertical elastic movement. In conjunction with the telescopic component, it controls the position of the positioning plate 33 when it is in a free state, thus ensuring adaptive fixation for PCBA motherboards of different thicknesses. The telescopic component includes two screws 32 and a screw cylinder 31. The two screws 32 are threaded to both ends of the screw cylinder 31. The ends of the two screws 32 away from the screw cylinder 31 are connected to the connecting plate 30 and the positioning pressure plate 33 respectively. That is, the upper screw 32 is connected to the connecting plate 30 at the top of the lifting rod, and the lower screw 32 is connected to the positioning pressure plate 33. By rotating the screw cylinder 31, the extension length of the two screws 32 can be adjusted, thereby adjusting the initial height of the bottom positioning pressure plate 33 to adapt to mainboards of different thicknesses.

[0021] As a preferred embodiment of the present invention, the cyclic moving component includes a movable slider 16 slidably connected to the top of the movable flip table 10, and a movable slide rail 15 is provided on the upper side of the movable flip table 10 corresponding to the bottom of the movable slider 16. The movable slider 16 slides inside the movable slide rail 15, and a cyclic driving component is connected to the bottom end of the movable slider 16. The cyclic driving component is used to control the movable slider 16 to cyclically move along the inside of the movable slide rail 15. The cyclic movement assembly includes a lead screw 23 rotatably disposed inside the lead screw groove 20 in the middle of the moving slide rail 15. A servo motor 21 is connected to one end of the lead screw 23, and a shaft is installed at the other end. The shaft is positioned by a support sleeve. A lead screw nut 22 is threaded onto the lead screw 23. A guide device is provided on the lead screw nut 22 to limit its rotation. That is, by starting the servo motor 21, the lead screw 23 is driven to rotate, thereby driving the lead screw nut 22 to move along the lead screw 23. The top of the lead screw nut 22 is connected to the bottom center of the moving slider 16 through a connecting rod, thereby controlling the moving slider 16 to cyclically move inside the moving slide rail 15. A bearing seat 14 is mounted on the top of the movable slider 16. A flip shaft 13 is rotatably mounted in the middle of the bearing seat 14. One end of the flip shaft 13 is fixedly connected to the side wall of the PCBA motherboard cleaning positioning frame 12, and the other end is connected to the flip assembly. The flip assembly includes a rack base plate 18 mounted on the side wall of the movable flip table 10. The rack base plate 18 is parallel to the moving direction of the bearing seat 14. A flip rack 19 is provided on one side of the top of the rack base plate 18. The flip gear 17 moves to the flip rack 19 and meshes with the flip rack 19, thereby driving the flip gear 17 to control the flip shaft 13 to rotate, thereby controlling the PCBA motherboard cleaning positioning frame 12 to flip over. It should be noted that the rack length of the flip rack 19 is greater than or equal to the tooth groove circumference of the flip gear 17, ensuring that after the flip gear 17 is engaged by the flip rack 19, it controls the PCBA motherboard cleaning positioning frame 12 to be completely flipped (i.e., rotated 180°).

[0022] The operation process of this utility model is as follows: Clamping: Place the PCBA motherboard on the positioning frame 12, rotate the screw 31 to adjust the height of the pressure plate 33 and press it tight.

[0023] Mobile cleaning: Servo motor 21 drives lead screw 23 to rotate, which in turn moves slider 16 and positioning frame 12 to the bottom of cleaning device 11 for initial rinsing.

[0024] Triggering flip: When the moving slider 16 moves to the rack base plate 18, the flip gear 17 meshes with the flip rack 19, driving the flip shaft 13 to rotate 180°.

[0025] Double-sided cleaning: After the positioning frame 12 is flipped over, it moves in the opposite direction to complete the cleaning of the other side.

[0026] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A PCBA motherboard cleanroom mechanism, characterized in that, include: A movable tilting table (10) is provided with a movable slide rail (15) on its top. The cleaning device (11) is provided in multiple sets and fixed above one side of the movable tilting table (10); PCBA motherboard cleaning positioning bracket (12) is used to fix the PCBA motherboard to be cleaned; The moving and flipping mechanism includes: a circulating moving component that drives the PCBA motherboard cleaning positioning frame (12) to move laterally along the moving slide rail (15); The flip component triggers a 180° flip of the PCBA motherboard cleaning positioning frame (12) during the cyclic movement; The PCBA motherboard cleaning positioning frame (12) has PCBA motherboard positioning parts (25) at its four corners for adaptively pressing the motherboard; The flipping assembly includes: a flipping shaft (13), one end of which is fixed to the side wall of the PCBA motherboard cleaning positioning frame (12), and the other end is connected to a flipping gear (17). A rack base plate (18) is arranged along the direction of the moving slide rail (15), and a flip rack (19) is provided on its top; the flip gear (17) meshes with the flip rack (19) when the moving slider (16) moves to the rack base plate (18), driving the flip shaft (13) to rotate.

2. The PCBA motherboard cleanroom mechanism according to claim 1, characterized in that, The cyclic movement component includes: The movable slider (16) is slidably connected to the movable slide rail (15); The lead screw (23) is driven by the servo motor (21) and is provided with a lead screw nut (22) connected to the movable slider (16); the lead screw nut (22) restricts the rotation through the guide device to realize the linear cyclic movement of the movable slider (16).

3. The PCBA motherboard cleanroom mechanism according to claim 2, characterized in that, The PCBA motherboard positioning component (25) includes: The positioning substrate (26) is fixed to the top edge of the PCBA motherboard cleaning positioning frame (12); The lifting rod (27) is elastically connected to the telescopic hole of the positioning base plate (26) by a spring (29); The telescopic component connects the lifting rod (27) and the positioning pressure plate (33) and is used to adjust the height of the pressure plate.

4. The PCBA motherboard cleanroom mechanism according to claim 3, characterized in that, The telescopic component includes: a screw cylinder (31) with screw rods (32) threaded at both ends; the upper screw rod (32) is connected to the connecting plate (30) at the top of the lifting rod, and the lower screw rod (32) is connected to the positioning pressure plate (33); the initial height of the positioning pressure plate (33) can be adjusted by rotating the screw cylinder (31) to adapt to mainboards of different thicknesses.

5. The PCBA motherboard cleanroom mechanism according to claim 4, characterized in that, The cleaning device (11) is a spray cleaner or a vapor phase cleaner, and the sum of its spray area covers the moving path of the PCBA motherboard cleaning positioning frame (12).

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