Unmanned aerial vehicle PCB three-proofing coating device

Abstract

The utility model discloses an unmanned aerial vehicle PCB three-proofing coating device, and particularly relates to the field of coating equipment. Comprising a coating box; the coating machine main body is positioned in the coating box; the two clamping mechanisms are symmetrically arranged in the coating box and are positioned below the coating machine main body; wherein each clamping mechanism comprises a connecting plate connected to the inner side wall of the coating box and parallel to the side wall of the coating box; the mounting plate is connected with the connecting plate through a first push rod and is parallel to the connecting plate; a first groove is formed inwards along one side of the mounting plate; the bottom of the U-shaped frame is connected into the first groove; and the extrusion plate is connected with the mounting plate through a connecting piece and is parallel to the mounting plate. The PCB can be ensured to be horizontally placed in the coating process, and the coating is prevented from flowing on the surface of the PCB, so that the uniformity of the thickness of the coating is ensured.

Description

Technical Field

[0001] This application relates to the field of coating equipment, and more particularly to a conformal coating device for UAV PCB boards. Background Technology

[0002] In the current development of the drone industry, the three-proof treatment of PCB boards—namely, moisture-proof, mildew-proof, and salt spray-proof—is a crucial step in ensuring the reliability and stability of drone electronic systems. The quality of the three-proof coating process directly affects the service life and performance of drones under various environmental conditions. Existing three-proof coating methods mainly include manual brushing, which suffers from severely outdated technology and cannot guarantee the thickness and adhesion of the paint layer. Therefore, it is necessary to design an automated coating device for PCB boards.

[0003] Existing coating equipment cannot guarantee that the PCB board is placed horizontally, which may cause the coating to flow on the PCB board surface, resulting in uneven coating thickness and affecting the protective effect. Summary of the Invention

[0004] The main purpose of this application is to provide a conformal coating device for drone PCB boards, which aims to solve the problem that existing coating devices cannot guarantee the horizontal placement of PCB boards.

[0005] To achieve the above objectives, this application provides a conformal coating device for UAV PCB boards, comprising: a coating box; a coating machine body located inside the coating box; two clamping mechanisms symmetrically arranged inside the coating box and located below the coating machine body, the two clamping mechanisms clamping the PCB board; wherein each clamping mechanism comprises: a connecting plate connected to the inner side wall of the coating box and parallel to the side wall of the coating box; a mounting plate connected to the connecting plate via a first push rod and parallel to the connecting plate; wherein the fixed end of the first push rod is connected to the connecting plate, and the movable end is connected to the mounting plate; a first groove is formed inward along one side of the mounting plate; a U-shaped frame with its bottom connected to the first groove and perpendicular to the mounting plate; an extrusion plate connected to the mounting plate via a connector and parallel to the mounting plate; wherein the two ends of the connector are respectively connected to the extrusion plate and the mounting plate; the extrusion plate extends out from both sides of the U-shaped frame.

[0006] Optionally, it also includes: a rotating shaft, one end of which is fixed to the U-shaped frame, and the other end of which extends out of the side wall of the mounting plate along the length direction, and the rotating shaft is rotatably connected to the mounting plate; the extrusion plate is provided with two second grooves that are adapted to the side wall of the U-shaped frame, the opening direction of the second grooves is the same as the opening direction of the first grooves, and the depth is the same; under the drive of the rotating shaft, the U-shaped frame rotates along the second grooves toward the mounting plate.

[0007] Optionally, it also includes a fixed plate connected to the other end of the rotating shaft; a through hole is provided along the axial direction of the fixed plate; a locking pin is provided, one end of which passes through the through hole; a first slot and a second slot adapted to the locking pin are provided on the mounting plate; wherein, when the locking pin is in the first slot, the U-shaped frame is perpendicular to the extrusion plate, and when the locking pin is in the second slot, the U-shaped frame is parallel to the extrusion plate.

[0008] Optionally, it also includes: a baffle plate connected to the other end of the locking pin; and a second spring sleeved on the locking pin, with its two ends connected to the fixing plate and the baffle plate respectively.

[0009] Optionally, the connector includes: a telescopic rod with a mounting plate and a pressing plate connected to its two ends respectively; and a first spring sleeved on the telescopic rod with a mounting plate and a pressing plate connected to its two ends respectively.

[0010] Optionally, it further includes: a strip frame connected inside the coating box via a second push rod, wherein the fixed end of the second push rod is fixed to the coating box, and the movable end is vertically connected to the strip frame; two racks vertically connected to both ends of the strip frame, each rack being connected to a corresponding connecting plate via a connecting shaft; wherein one end of the connecting shaft is vertically connected to the surface of the connecting plate away from the mounting plate, and the other end is rotatably connected to the inner side wall of the coating box, and the outer side wall of the connecting shaft is provided with a gear that meshes with the rack, and the connecting shaft is meshed with the rack.

[0011] Compared with the prior art, the beneficial effects of this application are as follows:

[0012] This utility model of a three-proof coating device for UAV PCB boards ensures that the PCB board is placed horizontally during the coating process, avoiding the flow of coating on the PCB board surface, thereby ensuring the uniformity of coating thickness and improving the protective effect; it adopts a compression buffer design, which effectively reduces the risk of mechanical damage to the PCB board caused by excessive pressure, such as cracking, bending or damage between laminate layers. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a conformal coating device for a drone PCB board according to this application;

[0014] Figure 2 This is a schematic diagram of the clamping mechanism of a conformal coating device for a drone PCB board according to this application;

[0015] Figure 3 This is a schematic diagram of the mounting plate of the conformal coating device for a drone PCB board according to this application;

[0016] Figure 4 This is a schematic diagram of the folding mechanism of a conformal coating device for a drone PCB board according to this application;

[0017] Figure 5This is a top view of a conformal coating device for a drone PCB board according to this application.

[0018] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] The first embodiment of the present invention provides a conformal coating device for drone PCB boards, such as... Figure 1-2 As shown, the system includes: a coating box 101, a coating machine body 102, and two clamping mechanisms. The coating machine body 102 is located inside the coating box 101. The two clamping mechanisms are symmetrically arranged inside the coating box 101 and located below the coating machine body 102. The two clamping mechanisms clamp the PCB board. Each clamping mechanism includes a connecting plate 104, a mounting plate 105, a U-shaped frame 109, and a pressing plate 106. The connecting plate 104 is connected to the inside of the coating box 101. The mounting plate 105 is connected to the connecting plate 104 via a first push rod 103. The first push rod 103 is parallel to the connecting plate 104; the fixed end of the first push rod 103 is connected to the connecting plate 104, and the movable end is connected to the mounting plate 105; a first groove 110 is provided inward along one side of the mounting plate 105; the bottom of the U-shaped frame 109 is connected to the first groove 110 and is perpendicular to the mounting plate; the extrusion plate 106 is connected to the mounting plate 105 through a connector and is parallel to the mounting plate 105; the two ends of the connector are respectively connected to the extrusion plate 106 and the mounting plate 105; the two side walls of the U-shaped frame 109 extend out of the extrusion plate 106.

[0021] For example, the first push rod 103 can be an electric push rod. The fixed end of the first push rod 103 is fixed to the surface of the connecting plate 104, and the movable end extends out of the connecting plate 104 along its thickness and is connected to the mounting plate 105, pushing the mounting plate 105 to move. The U-shaped frame 109 includes a first rod body, with two second rod bodies vertically connected to its two ends respectively. The first rod body is connected parallel to the bottom of the first groove 110, and the second rod bodies extend vertically out of the extrusion plate 106.

[0022] In this embodiment, the coating machine body 102 applies coating above the PCB board and clamps the PCB board using two holding mechanisms. Specifically, the extrusion plates 106 extend vertically from the two side walls of the U-shaped frame 109, making the distance between the two U-shaped frames 109 smaller than the distance between the two extrusion plates 106. The two ends of the PCB board are placed on the surface of the corresponding U-shaped frame 109, and the U-shaped frame 109 provides support for the PCB board. When clamped by the two extrusion plates, the PCB board is placed horizontally, preventing the coating from flowing on the surface of the PCB board, which would cause uneven coating thickness and affect the protective effect.

[0023] It is worth noting that the specific structure of the coating machine body 102 in this embodiment is not within the scope of protection of this application; it is sufficient that it can output coatings.

[0024] For example, the connector may include a telescopic rod 108 and a first spring 107. The telescopic rod 108 is connected to a mounting plate 105 and a compression plate 106 at both ends, respectively. The first spring 107 is sleeved on the telescopic rod 108, and its two ends are connected to the mounting plate 105 and the compression plate 106, respectively. Through the compression buffer design of the first spring 107 and the telescopic rod 108, when the compression plate 106 is blocked by the compression of the UAV PCB board, a reaction force can be exerted on the compression plate 106, thereby causing the compression plate 106 to compress the first spring 107 and the telescopic rod 108. The first spring 107 can provide a buffering effect during compression.

[0025] Furthermore, in order to prevent the protruding U-shaped frame 109 from obstructing the drone PCB when coating the other side of the PCB, a folding mechanism 3 is required to fold the U-shaped frame 109. The specific structure of the folding mechanism 3 is as follows.

[0026] like Figure 3-4 As shown, the folding mechanism 3 includes a rotating shaft 301, one end of which is fixed to the U-shaped frame 109, and the other end extends out of the side wall of the mounting plate 105 along the length direction. The rotating shaft 301 is rotatably connected to the mounting plate 105. The pressing plate 106 has two second grooves 111 that are adapted to the side wall of the U-shaped frame 109. The opening direction of the second grooves 111 is the same as the opening direction of the first grooves 110, and the depth is the same. Driven by the rotating shaft 301, the U-shaped frame 109 rotates along the second grooves 111 toward the mounting plate 105.

[0027] In this embodiment, a channel is formed along the side wall of the first groove 110 towards the length of the mounting plate 105. A bearing adapted to the rotating shaft 301 is provided in the channel, and the rotating shaft 301 is rotatably connected to the mounting plate 105 through the bearing. Driven by the rotating shaft 301, the U-shaped frame 109 rotates 90° along the second groove 111 towards the mounting plate 105, and the U-shaped frame 109 is completely located within the first groove 110.

[0028] Furthermore, in order to ensure the accuracy of the rotation of the U-shaped frame 109, a rotation mechanism is set at the free end of the rotating shaft 301, as follows.

[0029] The folding mechanism 3 also includes a fixed plate 302, a locking pin 303, and a second spring 304. The fixed plate 302 is connected to the other end of the rotating shaft 301 and has a through hole. The mounting plate 105 has a first slot 305 and a second slot 306. One end of the locking pin 303 passes through the through hole and is located in the first slot 305 or the second slot 306, and the other end is connected to a baffle 307. The second spring 304 is sleeved on the locking pin 303 and its two ends are connected to the fixed plate 302 and the baffle 307, respectively. When the locking pin 303 is in the first slot 305, the U-shaped frame 109 is perpendicular to the extrusion plate 106. When the locking pin 303 is in the second slot 306, the U-shaped frame 109 is parallel to the extrusion plate 106.

[0030] The rotating shaft 301 can be rotated by rotating the fixed disk 302. When rotation is required, the locking pin 303 is pulled away from the first slot 305 or the second slot 306. When the rotation is in place, the locking pin 303 is released. At this time, the second spring 304, which is under tension, retracts, thereby driving the locking pin 303 to be inserted into the second slot 306.

[0031] The coating apparatus also includes a flipping mechanism 2 that drives the two sets of clamping mechanisms to flip synchronously, such as... Figure 5 As shown, the flipping mechanism 2 includes a strip frame 202 and two racks 203. The strip frame 202 is connected to the coating box 101 via a second push rod 201. The fixed end of the second push rod 201 is fixed to the coating box 101, and the movable end is vertically connected to the strip frame 202. The two racks 203 are vertically connected to both ends of the strip frame 202. Each rack 203 is connected to a corresponding connecting plate 104 via a connecting shaft 205. One end of the connecting shaft 205 is vertically connected to the surface of the connecting plate 104 away from the mounting plate 105, and the other end is rotatably connected to the inner wall of the coating box 101. A gear 204 that meshes with the rack 203 is sleeved on the outer wall of the connecting shaft 205.

[0032] In this embodiment, the second push rod 201 can be an electric push rod. The driving end of the second push rod 201 is fixed to the outside of the coating box 101, and the movable end extends into the coating box 101 to connect to the strip frame 202. By pushing the strip frame 202 with the second push rod 201, the connecting shaft 205 rotates along the rack 203, thereby driving the clamping mechanism to flip, thus realizing the flipping of the PCB board.

[0033] In use, the conformal coating device for drone PCB boards places the drone PCB board between two sets of extrusion plates 106 for clamping. Activating the first push rod 103 drives the mounting plate 105 to move. The mounting plate 105 and the extrusion plates 106 are connected by a first spring 107 and a telescopic rod 108. As the mounting plate 105 moves, the extrusion plates 106 move synchronously, ensuring the distance between the two sets of extrusion plates 106 is greater than the size of the drone PCB board. Simultaneously, the distance between the two sets of U-shaped frames 109 is less than the size of the drone PCB board. The drone PCB board is then placed on the upper surface of the U-shaped frames 109. Since the U-shaped frames 109 are perpendicular to the extrusion plates 106, the drone PCB board is placed horizontally. Activating the first push rod 103 again drives the mounting plate 105 and the extrusion plates 106 to move synchronously, continuously reducing the distance between the two sets of extrusion plates 106, thus clamping the drone PCB board using the two sets of extrusion plates 106.

[0034] When the two sets of extrusion plates 106 clamp the PCB board of the drone, the first spring 107 and the telescopic rod 108 can exert a reaction force on the extrusion plate 106 when it is squeezed and blocked by the PCB board of the drone. This causes the extrusion plate 106 to compress the first spring 107 and the telescopic rod 108. The first spring 107 can provide a buffering effect during extrusion.

[0035] After the drone PCB board is clamped, the locking pin 303 is pulled, which in turn stretches the second spring 304, causing the locking pin 303 to disengage from the first slot 305. Then, it rotates to the fixing plate 302, which in turn drives the rotating shaft 301 and the U-shaped frame 109 to rotate synchronously to 90°. At this time, the locking pin 303 corresponds to the second slot 306. Then, the locking pin 303 is released, and the stretched second spring 304 retracts, which drives the locking pin 303 to insert into the second slot 306, thereby folding and locking the U-shaped frame 109 at 90°. Through this structure, when coating the back of the drone PCB board, the protruding part of the U-shaped frame 109 does not block the drone PCB board, thereby improving the full coverage of the drone PCB board coating.

[0036] Next, the flipping mechanism 2 is activated to automatically apply a three-proof coating to the upper surface of the drone's PCB board;

[0037] The second push rod 201 is activated, which in turn pushes the strip frame 202 to move. The strip frame 202 drives the two sets of racks 203 to move. The racks 203 and gears 204 mesh and connect, which in turn drives the connecting shaft 205 to rotate. Through the rotation of the connecting shaft 205, the extrusion plate 106 and the clamped drone PCB board can be flipped, thereby realizing the back three-proof coating operation through the flipping mechanism 2.

[0038] It should be noted that the solution also includes an electrical control cabinet, which is installed on the coating box 101. During use, each piece of electrical equipment can be started and operated through the electrical control cabinet. The power connection method of each piece of electrical equipment is a mature existing technology and is well known to those in the field, so it will not be elaborated further here.

[0039] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A UAV PCB board three-proofing coating device, characterized in that, include: Coating box; The main body of the coating machine is located inside the coating box; Two clamping mechanisms are symmetrically arranged inside the coating box and located below the main body of the coating machine. The two clamping mechanisms clamp the PCB board. Each of the clamping mechanisms includes: A connecting plate is attached to the inner side wall of the coating box and is parallel to the side wall of the coating box; The mounting plate is connected to the connecting plate via a first push rod and is parallel to the connecting plate; wherein, the fixed end of the first push rod is connected to the connecting plate, and the movable end is connected to the mounting plate; a first groove is formed inward along one side of the mounting plate; The U-shaped frame is connected at the bottom to the first groove, and the U-shaped frame is perpendicular to the mounting plate; An extrusion plate is connected to the mounting plate via a connector and is parallel to the mounting plate; wherein, the two ends of the connector are respectively connected to the extrusion plate and the mounting plate; the two side walls of the U-shaped frame extend out of the extrusion plate.

2. The unmanned aerial vehicle PCB board tri-proof coating device according to claim 1, characterized in that, Also includes: The rotating shaft has one end fixed to the U-shaped frame and the other end extending out of the side wall of the mounting plate along the length direction, and the rotating shaft is rotatably connected to the mounting plate; The extrusion plate has two second grooves that are adapted to the side wall of the U-shaped frame. The opening direction of the second groove is the same as that of the first groove, and the depth is the same. Driven by the rotating shaft, the U-shaped frame rotates along the second groove towards the mounting plate. 3.The device of claim 2, wherein It also includes a fixed disk connected to the other end of the rotating shaft; a through hole is provided along the axial direction of the fixed disk; A locking pin, one end of which passes through the through hole; the mounting plate has a first slot and a second slot adapted to the locking pin; When the locking pin is in the first slot, the U-shaped frame is perpendicular to the extrusion plate; when the locking pin is in the second slot, the U-shaped frame is parallel to the extrusion plate.

4. The unmanned aerial vehicle PCB board tri-proof coating device according to claim 3, characterized in that, Also includes: A baffle plate is connected to the other end of the locking pin; The second spring is sleeved on the locking pin, and its two ends are respectively connected to the fixed plate and the baffle.

5. The unmanned aerial vehicle PCB board tri-proof coating device according to claim 1, characterized in that, The connector includes: The telescopic rod is connected at both ends to the mounting plate and the extrusion plate, respectively. The first spring is sleeved on the telescopic rod, and its two ends are respectively connected to the mounting plate and the extrusion plate.

6. The anti-contamination coating device for UAV PCB boards according to claim 1, characterized in that, Also includes: A strip frame is connected inside the coating box via a second push rod, wherein the fixed end of the second push rod is fixed to the coating box, and the movable end is vertically connected to the strip frame; Two racks are vertically connected to both ends of the strip frame, and each rack is connected to a corresponding connecting plate via a connecting shaft. One end of the connecting shaft is vertically connected to the surface of the connecting plate away from the mounting plate, and the other end is rotatably connected to the inner side wall of the coating box. The outer side wall of the connecting shaft is provided with a gear that meshes with the rack, and the connecting shaft is meshed with the rack.

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