Automatic device for vacuum nano coating of circuit board and coating method

Abstract

The invention provides an automatic device for vacuum nano coating of a circuit board and a coating method, and belongs to the technical field of circuit board coating. Comprising a feeding machine, a plugging machine, a dispensing machine, a spraying machine, a drying machine, a coating machine, a glue removing machine and a visual inspection machine, the glue removing machine further comprises a workbench, and a circuit board body is placed on the workbench. Through the arrangement of the U-shaped cutter and the driving piece, in the process of clamping the plugging piece through the clamping jaw, the clamping jaw drives the U-shaped cutter to move through the driving piece, the U-shaped cutter is used for cutting off glue adhered to the port of the wiring terminal, the resistance generated when the plugging piece is pulled out is reduced, and in the process of gradually moving the clamping jaw rightwards to pull out the plugging piece from the wiring terminal, the plugging piece is pulled out through the clamping jaw. The piston rod of the driving piece gradually extends to enable the U-shaped cutter to abut against the end portion of the wiring terminal, the wiring terminal is prevented from moving along with the plugging piece, loosening between the wiring terminal and the circuit board body can be prevented, and therefore the stability of current transmission between the wiring terminal and the circuit board is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board coating, and in particular to an automated device and a coating method for circuit board vacuum nano coating. Background Art

[0002] When performing vacuum nano-coating on a circuit board, it is necessary to first use a feeder to load the circuit board and move the circuit board into a sealing machine. Then, a sealing piece made of clamped insulating plastic is inserted into the wiring terminal of the circuit board. A glue dispenser dispenses glue through the glue injection hole of the sealing piece to fill the wiring terminal with glue, thereby forming a shielding layer to prevent the coating material from entering the interior of the wiring terminal during subsequent nano-coating, thereby protecting the interior of the wiring terminal. Then, a sprayer is used to spray coupling agent on both sides of the circuit board to improve the adhesion during subsequent nano-coating. Then, a dryer is used to dry and solidify the glue in the wiring terminal on the circuit board. After drying and solidification, the circuit board is hoisted into the vacuum chamber of the coating machine for coating. After coating, the circuit board is hoisted out and the sealing piece is pulled out from the wiring terminal by driving the clamp to move. Then, check whether there is glue residue in the wiring terminal. If there is residue, clean it. After the above process is completed, automatic vacuum nano-coating of the circuit board can be achieved.

[0003] During the automated vacuum nano-coating process of a circuit board, when the sealing piece is pulled out from the terminal of the circuit board using a clamp, the terminal is easily moved along with the sealing piece due to the influence of the glue inside the terminal, which can easily cause the connection between the terminal and the circuit board to loosen, affecting the stable transmission of current between the circuit board and the terminal. Therefore, the present application provides an automated device and coating method for vacuum nano-coating of circuit boards to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an automated device and a coating method for vacuum nano-coating of circuit boards to solve the problem that when the sealing piece is directly pulled out, it is easy to cause the terminal to move with it, thereby easily causing the connection between the terminal and the circuit board to loosen, which affects the stable transmission of current between the circuit board and the terminal.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: An automated device for vacuum nano-coating of a circuit board, comprising a feeder, a plugging machine, a glue dispenser, a sprayer, a drying machine, a coating machine, a glue remover and a visual inspection machine, wherein the glue remover also comprises a workbench, on which a circuit board body is placed, a fixture is arranged, and the fixture is used for clamping and positioning the circuit board body, a wiring terminal is mounted on the circuit board body, a card slot is provided on the wiring terminal, and a plugging piece is inserted into the wiring terminal, and further comprises: The U-shaped cutter is provided with a manipulator 1 on the side of the workbench, a mounting plate is installed at the end of the manipulator 1, a claw seat and a CCD camera are respectively installed on the sides of the mounting plate, an upper clamping jaw and a lower clamping jaw are installed on the side of the claw seat, the upper clamping jaw and the lower clamping jaw are clamped at the annular protrusion of the sealing piece, and a connecting seat is installed on the away sides of the upper clamping jaw and the lower clamping jaw, a driving member is fixed in the connecting seat, a connecting block is fixed at the telescopic end of the driving member, and two U-shaped cutters are respectively fixed on the opposite surfaces of the two connecting blocks, and an inclined guide surface 1 is provided at the opposite ends of the two U-shaped cutters, and a guide surface 2 is provided on the inner wall of the U-shaped cutter. When the upper clamping jaw and the lower clamping jaw clamp the sealing piece, the U-shaped cutter is synchronously driven to move, and the guide surface 1 and the guide surface 2 are used to realize the cutting of the glue at the end of the terminal. In the process of the upper clamping jaw and the lower clamping jaw pulling the sealing piece out of the terminal, the U-shaped cutter is pressed against the end position of the terminal under the action of the driving member.

[0006] Preferably, a convex strip 1 is fixed on the guide surface 1, a convex strip 2 is fixed on the guide surface 2, and the ends of the convex strip 1 and the convex strip 2 are both provided with inclined portions.

[0007] Preferably, a first inclined surface is provided on a side of the U-shaped cutter away from the wiring terminal, and the first inclined surface is connected to the first guiding surface.

[0008] Preferably, a support frame is fixed to the side of the two U-shaped cutters away from the driving member, the side of the support frame is fixedly connected to the side of the connecting block, the inner wall of the support frame is slidably connected to a slider, a positioning plate is fixed to the side of the slider close to the wiring terminal, a spring is fixed to the side of the positioning plate away from the wiring terminal, the end of the spring is fixedly connected to the side of the inner wall of the support frame away from the wiring terminal, and the two positioning plates are respectively attached to the top and bottom of the wiring terminal.

[0009] Preferably, a through slot is provided on the positioning plate located at the top of the terminal block, a round shaft is fixed in the through slot, a push rod is rotatably connected to the round shaft, the plane of the push rod close to the upper clamping jaw is in contact with the side of the inner wall of the through slot, an abutment portion is provided at the end of the push rod away from the slider, the abutment portion is in contact with the side of the inner wall of the slot away from the upper clamping jaw, and the end of the push rod close to the upper clamping jaw is in contact with the side of the inner wall of the through slot.

[0010] Preferably, a second inclined surface is provided on a side of the abutting portion close to the upper clamping jaw.

[0011] Preferably, the inner wall of the lower clamping jaw is provided with a notch, a rotating shaft is fixed on the inner wall of the notch, a movable block is rotatably connected to the rotating shaft, a U-shaped piece is arranged in the notch, the movable block is fixed inside the U-shaped piece, the U-shaped piece includes a raised portion, a vertical portion and a bent portion connected in sequence, the raised portion fits against the side surface of the annular protrusion, the movable block is fixed to the inner wall of the bent portion, the top of the bent portion is provided with an arc-shaped surface that bends upward, the arc-shaped surface conflicts with the bottom of the annular protrusion, an inclined block is fixed to the bottom of the bent portion, a push strip is fixed to the side surface of the U-shaped cutter located below, the end of the push strip conflicts with the side surface of the inclined block, a limiting column is fixed to the inner wall of the notch, an arc groove is arranged on the side surface of the bent portion, and the limiting column is located inside the arc groove.

[0012] Preferably, inner walls of the upper clamping jaw and the lower clamping jaw are both provided with long grooves.

[0013] Preferably, a steering gear is provided on the workbench, and the steering gear is used for flipping the clamp. A second manipulator is provided on the side of the workbench away from the first manipulator, and a laser transmitter is installed at the end of the second manipulator.

[0014] A coating method for vacuum nano-coating of a circuit board is applied to the above-mentioned automatic device for vacuum nano-coating of a circuit board, comprising the following steps: S1: Use a loading machine to load the circuit board body; S2: Using a vibrating plate to feed, the robot grabs the insulating plastic injection-molded plugging parts; S3: The robot inserts the blocking piece into the wiring terminal of the circuit board body; S4: The circuit board body is moved into the plugging machine, and the glue dispensing machine dispenses glue through the glue injection holes of the plugging piece to form a shielding layer; S5: Spray coupling agent on both sides of the circuit board body; S6: The robot places the circuit board body on the dryer to dry and solidify the glue in the terminal block; S7: hoisting the circuit board body into the vacuum chamber of the coating machine for coating; S8: After the coating is completed, the circuit board body is lifted out and moved to the glue removal machine. The robot drives the upper and lower jaws to clamp the annular protrusion of the plugging piece, and the glue at the end of the terminal is cut off by the U-shaped cutter. The robot drives the upper and lower jaws to move and pull the plugging piece out of the terminal. S9: Use the second manipulator to drive the laser transmitter head to move to the mounting hole position of the circuit board body, use the laser transmitter head to remove the coating at the mounting hole, and then the servo drives the circuit board body to flip through the fixture to remove the coating at the mounting hole position on the other side of the circuit board body; S10: Use a visual inspection machine to detect whether there is glue residue in the terminal block. If there is no glue residue, the circuit board body after coating is packaged. If there is glue residue, manual processing is required, and then the processed circuit board body is packaged.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, through the arrangement of the U-shaped cutter and the driving member, in the process of clamping the sealing member by the upper jaw and the lower jaw, the upper jaw and the lower jaw drive the U-shaped cutter to move through the driving member, and the U-shaped cutter is used to cut off the glue adhering to the port of the terminal, thereby reducing the resistance when the sealing member is pulled out. In the process of gradually moving the upper jaw and the lower jaw to the right to pull the sealing member out of the terminal, the piston rod of the driving member gradually extends to make the U-shaped cutter rest against the end position of the terminal, preventing the terminal from moving with the sealing member, thereby preventing the terminal from loosening with the circuit board body, thereby ensuring the stability of current transmission between the terminal and the circuit board.

[0016] Through the arrangement of the push rod and the abutment portion, after the sealing piece is clamped by the upper clamping jaws and the lower clamping jaws, the abutment portion at the end of the push rod fits against the side of the inner wall of the slot on the terminal away from the clamping jaws. In the process of pulling out the sealing piece, the abutment portion abuts against the slot to further prevent the terminal from moving with the sealing piece, further preventing the terminal from loosening, thereby further ensuring the stability of current transmission between the terminal and the circuit board.

[0017] Through the arrangement of the positioning plate and the spring, during the process of clamping the sealing piece, the two positioning plates are respectively in contact with the top and bottom of the terminal under the action of the corresponding spring elastic force, and in the process of cutting off the glue at the end of the terminal by the two U-shaped cutters, when the glue exists in the upper half of the end surface of the terminal, the upper U-shaped cutter will generate a certain resistance when cutting the glue, and the resistance will drive the end of the terminal to move downward. At this time, the bottom positioning plate supports the terminal and effectively prevents the terminal from moving downward. When the glue exists in the lower half of the end surface of the terminal, the lower U-shaped cutter will generate a certain resistance when cutting the glue, and the resistance will drive the end of the terminal to lift up. At this time, the top positioning plate presses down on the terminal and effectively prevents the terminal from lifting up, thereby effectively preventing the terminal from loosening again.

[0018] The U-shaped cutter is then pushed away from the jaws and the push bar is forced to move against the push bar before the cutter is driven to push the U-shaped cutter back and forth. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the circuit board body of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the wiring terminal of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the slider of the present invention; Figure 5 It is a front cross-sectional view of the positioning plate of the present invention; Figure 6 This is an enlarged view of the annular protrusion structure of the present invention; Figure 7 It is a cross-sectional view of the long groove of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the U-shaped cutter of the present invention; Fig. 9 It is a schematic diagram of a three-dimensional structure of a guide surface of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the U-shaped member of the present invention; Fig.11 It is a schematic diagram of the three-dimensional structure of the steering gear of the present invention.

[0021] [Reference Signs] 1. Workbench; 2. Circuit board body; 3. Terminal block; 4. Slot; 5. Blocking piece; 6. Annular protrusion; 7. Upper clamping jaw; 8. Long groove; 9. U-shaped cutter; 10. Guide surface 1; 11. Guide surface 2; 12. Inclined surface 1; 13. Raised strip 1; 14. Raised strip 2; 15. Driving piece; 16. Connecting seat; 17. Connecting block; 18. Pushing strip; 19. Notch; 20. Rotating shaft; 21. Movable block; 22. U-shaped piece; 23. Curved surface ; 24. bending part; 25. vertical part; 26. raised part; 27. arc groove; 28. limit column; 29. ​​inclined block; 30. support frame; 31. slider; 32. spring; 33. positioning plate; 34. round shaft; 35. push rod; 36. abutment part; 37. inclined surface 2; 38. fixture; 39. servo; 40. claw seat; 41. manipulator 1; 42. CCD camera; 43. lower clamp; 44. manipulator 2; 45. laser transmitter.

[0022] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0023] The following is a detailed description of an automatic device for vacuum nano-coating of a circuit board and a coating method provided by the present invention in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0024] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0025] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0026] like Figure 1-Figure 11 As shown, an embodiment of the present invention provides an automated device for vacuum nano-coating of a circuit board, including a feeder (not shown in the figure), a plugging machine (not shown in the figure), a glue dispenser (not shown in the figure), a sprayer (not shown in the figure), a drying machine (not shown in the figure), a coating machine (not shown in the figure), a glue remover and a visual inspection machine (not shown in the figure), the glue remover also includes a workbench 1, a circuit board body 2 is placed on the workbench 1, a fixture 38 is provided on the workbench 1, the fixture 38 is used for clamping and positioning the circuit board body 2, the fixture 38 is mainly composed of an upper pressing frame, a lower pressing frame and a cylinder, the cylinder drives the upper pressing frame and the lower pressing frame to clamp the circuit board body 2, thereby realizing the positioning of the circuit board body 2, the wiring terminal 3 is installed on the circuit board body 2, the card slot 4 is opened on the wiring terminal 3, the plugging piece 5 is inserted into the wiring terminal 3, and also includes: A U-shaped cutter 9 is provided on the side of the workbench 1. A mounting plate is installed at the end of the manipulator 41. A claw seat 40 and a CCD camera 42 are installed on the side of the mounting plate. The CCD camera 42 is used to shoot the terminal 3, so that the manipulator 41 can know the position of the terminal 3. An upper clamping jaw 7 and a lower clamping jaw 43 are installed on the side of the claw seat 40. The upper clamping jaw 7 and the lower clamping jaw 43 are clamped at the annular protrusion 6 of the blocking member 5. A connecting seat 16 is installed on the away side of the upper clamping jaw 7 and the lower clamping jaw 43. A driving member 15 is fixed in the connecting seat 16. The driving member 15 is a cylinder. A connecting block 17 is fixed to the telescopic end of the driving member 15. Two U-shaped cutters 9 are respectively fixed on the opposite surfaces of the two connecting blocks 17. The opposite ends of the two U-shaped cutters 9 are provided with inclined guide surfaces 10 The inner wall of the U-shaped cutter 9 is provided with a guide surface 2 11. When the upper clamping jaw 7 and the lower clamping jaw 43 clamp the blocking piece 5, the U-shaped cutter 9 is synchronously driven to move, and the guide surface 10 and the guide surface 2 11 are used to cut off the glue at the end of the terminal 3. In the process of the upper clamping jaw 7 and the lower clamping jaw 43 pulling out the blocking piece 5 from the terminal 3, the U-shaped cutter 9 is pressed against the end position of the terminal 3 under the action of the driving member 15, and the glue adhered to the end of the terminal 3 is cut off by the U-shaped cutter 9. At the same time, in the process of pulling out the blocking piece 5 from the terminal 3, the U-shaped cutter 9 is pressed against the end of the terminal 3 to prevent the terminal 3 from moving with the blocking piece 5, so as to prevent the terminal 3 from loosening with the circuit board body 2, thereby ensuring the stable transmission of current between the terminal 3 and the circuit board body 2.

[0027] like Fig. 9 As shown, in the present embodiment, a convex strip 13 is fixed on the guide surface 10, and a convex strip 14 is fixed on the guide surface 11. The ends of the convex strip 13 and the convex strip 14 are both provided with inclined portions. Through the design of the convex strip 13 and the convex strip 14, the adhesive to be cut can be effectively prevented from adhering to the guide surface 10 and the guide surface 11, thereby reducing the resistance of the U-shaped cutter 9 during movement, making the adhesive cutting process smoother.

[0028] like Figure 8 and Fig. 9 As shown, in this embodiment, a slope 12 is provided on the side of the U-shaped cutter 9 away from the terminal 3, and the slope 12 is connected to the guide surface 10. The slope 12 is used to effectively reduce the adhesion of the cut glue to the side of the U-shaped cutter 9 close to the upper clamping jaw 7, thereby reducing the resistance of the U-shaped cutter 9 in the process of cutting glue, making the glue cutting process smoother.

[0029] like Figure 4 and Figure 8As shown, in the present embodiment, a support frame 30 is fixed on the side of the two U-shaped cutters 9 away from the driving member 15, and the side of the support frame 30 is fixedly connected to the side of the connecting block 17. A slider 31 is slidably connected to the inner wall of the support frame 30, and a positioning plate 33 is fixed on the side of the slider 31 close to the wiring terminal 3. A spring 32 is fixed on the side of the positioning plate 33 away from the wiring terminal 3, and the end of the spring 32 is fixedly connected to the side of the inner wall of the support frame 30 away from the wiring terminal 3. The two positioning plates 33 are respectively attached to the top and bottom of the wiring terminal 3. In the process of clamping the blocking member 5, the two positioning plates 33 are respectively in contact with the top and bottom of the wiring terminal 3 under the action of the corresponding spring 32 elastic force. As the clamping claw clamps the blocking member 5, the U-shaped cutter 9 drives the support frame 30 along the slider The surface of 31 moves, and the support frame 30 squeezes the spring 32, so that the spring 32 is in a compressed state. In the process of cutting off the glue at the end of the terminal 3 by the two U-shaped cutters 9, when the glue exists in the upper half of the end surface of the terminal 3, the upper U-shaped cutter 9 will generate a certain resistance when cutting the glue, and the resistance will drive the end of the terminal 3 to move downward. At this time, the bottom positioning plate 33 supports the terminal 3 and effectively prevents the terminal 3 from moving downward. When the glue exists in the lower half of the end surface of the terminal 3, the lower U-shaped cutter 9 will generate a certain resistance when cutting the glue, and the resistance will drive the end of the terminal 3 to lift up. At this time, the top positioning plate 33 presses down the terminal 3, effectively preventing the terminal 3 from lifting up, thereby effectively preventing the terminal 3 from loosening from the circuit board.

[0030] like Figure 4 and Figure 5 As shown, in this embodiment, a through slot is provided on the positioning plate 33 located at the top of the terminal block 3, a round shaft 34 is fixed in the through slot, a push rod 35 is rotatably connected to the round shaft 34, the plane of the push rod 35 close to the upper clamping jaw 7 is in contact with the side of the inner wall of the through slot, and the end of the push rod 35 away from the slider 31 is provided with an abutment portion 36, the abutment portion 36 is in contact with the side of the inner wall of the slot 4 away from the upper clamping jaw 7, and the end of the push rod 35 close to the upper clamping jaw 7 is in contact with the side of the inner wall of the through slot. When the plane near one end of the upper clamping jaw 7 is in contact with the side of the inner wall of the through groove, the push rod 35 can only rotate upward and cannot rotate downward, thereby maintaining the horizontal state of the push rod 35. When the upper positioning plate 33 is in contact with the top of the terminal 3, the abutment 36 at the end of the push rod 35 is in contact with the side of the inner wall of the slot 4 on the terminal 3 away from the upper clamping jaw 7. During the process of pulling out the blocking piece 5, the abutment 36 abuts against the slot 4 to prevent the terminal 3 from moving with the blocking piece 5, thereby preventing the terminal 3 from loosening.

[0031] like Figure 5As shown, in the present embodiment, a second inclined surface 37 is provided on the side of the abutment portion 36 close to the upper clamping jaw 7. When the U-shaped cutter 9 drives the positioning plate 33 to move to the right, the positioning plate 33 drives the push rod 35 to move to the right. When the inclined surface on the side of the abutment portion 36 at the end of the push rod 35 contacts the side of the inner wall of the slot 4 close to the upper clamping jaw 7, the push rod 35 is rotated upward with the circular axis 34 as the axis under the action of the second inclined surface 37. The second inclined surface 37 prevents the abutment portion 36 of the push rod 35 from being stuck in the slot 4 and affecting the rightward movement of the U-shaped cutter 9.

[0032] like Figure 6 and Fig.10 As shown, in this embodiment, a notch 19 is provided on the inner wall of the lower clamping jaw 43, a rotating shaft 20 is fixed on the inner wall of the notch 19, a movable block 21 is rotatably connected to the rotating shaft 20, a U-shaped piece 22 is provided in the notch 19, the movable block 21 is fixed inside the U-shaped piece 22, the U-shaped piece 22 includes a raised portion 26, a vertical portion 25 and a bent portion 24 connected in sequence, the raised portion 26 is attached to the side of the annular protrusion 6, the movable block 21 is fixed to the inner wall of the bent portion 24, the top of the bent portion 24 is provided with an upwardly curved surface 23, the curved surface 23 conflicts with the bottom of the annular protrusion 6, an inclined block 29 is fixed to the bottom of the bent portion 24, a push strip 18 is fixed to the side of the U-shaped cutter 9 located below, the end of the push strip 18 conflicts with the side of the inclined block 29, a limiting column 28 is fixed on the inner wall of the notch 19, and a There is an arc groove 27, and the limiting column 28 is located inside the arc groove 27. After the U-shaped cutter 9 moves to the right for a distance, it starts to drive the push strip 18 to squeeze the inclined block 29 at the bottom of the U-shaped part 22, so that the inclined block 29 drives the U-shaped part 22 to rotate around the rotating shaft 20, so that the U-shaped part 22 drives the arc surface 23 to rotate upward, and the protrusion 26 to rotate downward. The arc surface 23 lifts the annular protrusion 6 of the blocking part 5. At the same time, the protrusion 26 no longer blocks the position of the annular protrusion 6, so that the blocking part 5 falls out of the lower clamping jaw 43, preventing the blocking part 5 from hanging at the clamping jaw and affecting the subsequent removal of other blocking parts 5. When the U-shaped part 22 rotates, it drives the arc groove 27 to rotate along the surface of the limiting column 28. The cooperation between the arc groove 27 and the limiting column 28 makes the rotation of the U-shaped part 22 more stable, and prevents the U-shaped part 22 from excessive rotation.

[0033] like Figure 7 As shown, in this embodiment, the inner walls of the upper clamping jaw 7 and the lower clamping jaw 43 are provided with long grooves 8, and the long grooves 8 are used to reduce the contact area between the inner walls of the upper clamping jaw 7 and the lower clamping jaw 43 and the annular protrusion 6, thereby increasing the pressure acting on the annular protrusion 6 and improving the stability and tightness of the upper clamping jaw 7 and the lower clamping jaw 43 in clamping the annular protrusion 6.

[0034] like Figure 1 and Fig.11As shown, in this embodiment, a servo 39 is provided on the workbench 1, and the servo 39 is used to flip the clamp 38. A manipulator 2 44 is provided on the side of the workbench 1 away from the manipulator 1 41, and a laser transmitter 45 is installed at the end of the manipulator 2 44. The lower pressure frame of the clamp 38 is fixedly connected to the output end of the servo 39. After the servo 39 is started, the clamp 38 can be driven to flip. After the blocking piece 5 is pulled out from the terminal 3, the manipulator 2 44 is used to drive the laser transmitter 45 to move to the mounting hole position of the circuit board body 2. The laser transmitter 45 is used in conjunction with a carbon dioxide laser, and the laser transmitter 45 is used to emit a laser to remove the coating at the mounting hole. After the coating at the mounting hole on this side is cleaned, the servo 39 is started, and the servo 39 drives the circuit board body 2 to flip through the clamp 38, and then the laser transmitter 45 is used to remove the coating at the mounting hole position corresponding to the other side of the circuit board body 2, and the coating at the mounting hole is removed to prevent the coating from affecting the subsequent installation and fixation of the circuit board body 2.

[0035] A coating method for vacuum nano-coating of a circuit board is applied to the above-mentioned automatic device for vacuum nano-coating of a circuit board, comprising the following steps: S1: Use a loading machine to load the circuit board body 2; S2: Using a vibrating plate to feed, the robot grabs the insulating plastic injection-molded plugging part 5; S3: The robot inserts the blocking member 5 into the connection terminal 3 of the circuit board body 2; S4: The circuit board body 2 is moved into the plugging machine, and the glue dispensing machine dispenses glue through the glue injection holes of the plugging member 5 to form a shielding layer; S5: Spray coupling agent on both sides of the circuit board body 2; S6: The robot places the circuit board body 2 on a dryer to dry and solidify the glue in the terminal block 3; S7: hoisting the circuit board body 2 into the vacuum chamber of the coating machine for coating; S8: After the coating is completed, the circuit board body 2 is lifted out and moved to the glue removal machine, the robot arm 41 drives the upper clamping jaw 7 and the lower clamping jaw 43 to clamp the annular protrusion 6 of the blocking piece 5, and the glue at the end of the terminal 3 is cut off by the U-shaped cutter 9, and the robot arm 41 drives the upper clamping jaw 7 and the lower clamping jaw 43 to move and pull the blocking piece 5 out of the terminal 3; S9: Use the second manipulator 44 to drive the laser transmitter 45 to move to the mounting hole position of the circuit board body 2, and use the laser transmitter 45 to remove the coating at the mounting hole. Then, the servo 39 drives the circuit board body 2 to flip through the fixture 38 to remove the coating at the mounting hole position on the other side of the circuit board body 2. S10: Use a visual inspection machine to detect whether there is glue residue in the terminal block 3. If there is no glue residue, the circuit board body 2 after coating is packaged. If there is glue residue, manual processing is required, and then the processed circuit board body 2 is packaged.

[0036] Working principle: the feeder feeds the circuit board body 2, moves the circuit board body 2 into the plugging machine, uses a vibration plate to feed the plugging piece 5, the robot grabs the plugging piece 5, and then uses the robot to clamp the plugging piece 5 and insert the plugging piece 5 into the terminal 3 of the circuit board body 2, and then uses a glue dispenser to dispense glue through the glue injection hole of the plugging piece 5, fills the terminal 3 with glue to form a shielding layer to prevent the coating material from entering the terminal 3 during the subsequent nano-coating, so as to protect the inside of the terminal 3, and then uses a sprayer to spray coupling agent on both sides of the circuit board body 2 to improve the adhesion during the subsequent nano-coating. After the spraying is completed, the dryer is used to dry and solidify the glue in the terminal 3 on the circuit board body 2. After the drying and solidification is completed, the circuit board body 2 is hoisted into the vacuum chamber of the coating machine for nano-coating. After the coating is completed, the circuit board body 2 is hoisted out of the vacuum chamber and moved to the workbench 1 of the glue removal machine, and the circuit board body 2 is clamped by a clamp 38 to realize the positioning of the circuit board body 2; The CCD camera 42 is moved to the connection terminal 3 by using the manipulator 41, and the connection terminal 3 is photographed by the CCD camera 42 to obtain the position of the connection terminal 3. Then, the manipulator 41 drives the upper clamping jaw 7 and the lower clamping jaw 43 on the claw seat 40 to move to the corresponding connection terminal 3. The claw seat 40 drives the upper clamping jaw 7 and the lower clamping jaw 43 to approach each other to clamp the position of the annular protrusion 6 on the plugging member 5. During the clamping process, the upper clamping jaw 7 and the lower clamping jaw 43 drive the two U-shaped cutters 9 to move toward each other through the corresponding connecting seat 16 and the driving member 15, and the U-shaped cutter 9 is used to cut off the glue adhered to the port of the connection terminal 3, thereby reducing the resistance when the plugging member 5 is pulled out; In the process of clamping the blocking piece 5, the two positioning plates 33 are respectively in contact with the top and bottom of the terminal block 3 under the elastic force of the corresponding spring 32. As the upper clamping jaw 7 and the lower clamping jaw 43 clamp the blocking piece 5, the U-shaped cutter 9 drives the support frame 30 to move along the surface of the slider 31, and the support frame 30 squeezes the spring 32 to put the spring 32 in a compressed state. In the process of cutting off the glue at the end of the terminal block 3 by the two U-shaped cutters 9, when the glue exists in the upper half of the end surface of the terminal block 3, the upper U-shaped cutter 9 will generate a certain resistance when cutting the glue, and the resistance will drive the end of the terminal block 3 to move downward. At this time, the bottom positioning plate 33 is pressed against the terminal block 3 plays a supporting role, effectively preventing the terminal block 3 from moving down. When glue exists in the lower half of the end face of the terminal block 3, the lower U-shaped cutter 9 will generate a certain resistance when cutting the glue, and the resistance will drive the end of the terminal block 3 to lift up. At this time, the top positioning plate 33 plays a downward pressing role on the terminal block 3, effectively preventing the terminal block 3 from lifting up, thereby effectively preventing the terminal block 3 from loosening from the circuit board. At the same time, the push rod 35 moves with the upper positioning plate 33 through the circular shaft 34. When the upper positioning plate 33 is attached to the top of the terminal block 3, the abutment portion 36 at the end of the push rod 35 is attached to the inner wall of the upper slot 4 of the terminal block 3 away from the upper clamping claw 7. After the annular protrusion 6 of the blocking member 5 is clamped by the upper clamping jaw 7 and the lower clamping jaw 43, the upper clamping jaw 7 and the lower clamping jaw 43 can be driven by the manipulator 41 to gradually move to the right to pull the blocking member 5 out of the terminal block 3. During the pulling-out process, the piston rod of the driving member 15 gradually extends to make the U-shaped cutter 9 abut against the end position of the terminal block 3, while ensuring that the abutting portion 36 at the end of the push rod 35 is always in contact with the side of the inner wall of the slot 4 away from the upper clamping jaw 7. The cooperation between the U-shaped cutter 9 and the abutting portion 36 prevents the terminal block 3 from moving with the blocking member 5, and prevents the terminal block 3 from loosening from the circuit board body 2, thereby ensuring the stability of current transmission between the terminal block 3 and the circuit board. After the blocking member 5 is pulled out, the piston rod of the driving member 15 is extended to its longest position. At this time, the upper clamping jaw 7 and the lower clamping jaw 43 begin to open, and the driving member 15 begins to drive the U-shaped cutter 9 to move rightward, and the U-shaped cutter 9 drives the positioning plate 33 to move rightward, and the positioning plate 33 drives the push rod 35 to move rightward. When the inclined surface on the side of the abutment 36 at the end of the push rod 35 contacts the side of the inner wall of the slot 4 close to the upper clamping jaw 7, the push rod 35 is rotated upward with the circular shaft 34 as the axis under the action of the second inclined surface 37, and the abutment 36 of the push rod 35 is prevented from being stuck in the slot 4 by the second inclined surface 37 to affect the rightward movement of the U-shaped cutter 9, and the U-shaped cutter 9 moves. After a certain distance, the push bar 18 starts to be driven to squeeze the inclined block 29 at the bottom of the U-shaped member 22, so that the inclined block 29 drives the U-shaped member 22 to rotate around the rotating shaft 20, so that the U-shaped member 22 drives the arc surface 23 to rotate upward, and the protrusion 26 rotates downward, and the arc surface 23 pushes up the annular protrusion 6 of the blocking member 5. At the same time, the protrusion 26 no longer blocks the position of the annular protrusion 6, so that the blocking member 5 falls out of the lower clamping jaw 43, preventing the blocking member 5 from hanging on the lower clamping jaw 43 and affecting the subsequent extraction of other blocking members 5. When the arc surface 23 rotates upward to the highest state, the piston rod of the driving member 15 is shortened to the shortest state; After the plugging piece 5 is pulled out from the terminal block 3, the manipulator 2 44 is used to drive the laser transmitter 45 to move to the mounting hole position of the circuit board body 2. The laser transmitter 45 is used in conjunction with the carbon dioxide laser. The laser transmitter 45 emits a laser to remove the coating at the mounting hole. After the coating at the mounting hole on this side is cleaned, the servo 39 is started. The servo 39 drives the circuit board body 2 to flip through the clamp 38, and then the laser transmitter 45 is used to remove the coating at the mounting hole position corresponding to the other side of the circuit board body 2. The coating at the mounting hole is removed to prevent the coating from being damaged. The film affects the subsequent installation and fixation of the circuit board body 2. After the coating on both sides of the corresponding mounting holes is cleaned, the fixture 38 together with the circuit board body 2 is turned back by the servo 39, and then the cylinder on the fixture 38 is started to move the upper pressure frame on the fixture 38 upward to release the positioning of the circuit board body 2, and then the circuit board body 2 is moved to the visual inspection machine. The visual inspection machine checks whether there is glue residue in the terminal block 3. If there is residue, it can be cleaned. After the processing, the circuit board body 2 can be packaged. The automatic coating of the circuit board body 2 can be completed through the above process. After the blocking member 5 is ejected from the upper clamping jaw 7 and the lower clamping jaw 43 by the U-shaped member 22, the piston rod of the driving member 15 is shortened to the shortest state and then extended for a distance to ensure that when the blocking member 5 on other terminals 3 is pulled out again, the U-shaped cutter 9 is aligned with the end face position of the terminal 3, thereby ensuring the smooth removal of the end face glue of the terminal 3. After the U-shaped cutter 9 is aligned with the end face position of the terminal 3, the push strip 18 is separated from the inclined block 29, and at the same time, when the blocking member 5 on other terminals 3 is pulled out again, the push strip 18 is separated from the inclined block 29. When the blocking member 5 is pulled out, during the clamping process of the upper clamping jaw 7 and the lower clamping jaw 43 on the blocking member 5, the annular protrusion 6 of the blocking member 5 squeezes the arc surface 23 of the U-shaped member 22, so that the arc surface 23 drives the U-shaped member 22 to rotate downward with the rotating shaft 20 as the axis. After the annular protrusion 6 of the blocking member 5 is clamped, the raised portion 26 on the U-shaped member 22 fits against the left side of the annular protrusion 6. When the blocking member 5 is pulled out, the side edge of the upper clamping jaw 7 cooperates with the raised portion 26 on the U-shaped member 22 at the lower clamping jaw 43 to achieve the smooth pulling out of the blocking member 5.

[0037] The present invention encompasses any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the above preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0038] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An automated device for vacuum nano-coating of a circuit board, comprising a feeder, a sealing machine, a glue dispenser, a sprayer, a drying machine, a coating machine, a glue remover and a visual inspection machine, wherein the glue remover further comprises a workbench (1), a circuit board body (2) is placed on the workbench (1), a fixture (38) is provided on the workbench (1), the fixture (38) is used for clamping and positioning the circuit board body (2), a wiring terminal (3) is mounted on the circuit board body (2), a slot (4) is provided on the wiring terminal (3), a sealing member (5) is inserted into the wiring terminal (3), and the device is characterized in that: Also includes: A U-shaped cutter (9) is provided on the side of the workbench (1), a manipulator (41) is installed at the end of the manipulator (41), a claw seat (40) and a CCD camera (42) are installed on the side of the mounting plate respectively, an upper clamping claw (7) and a lower clamping claw (43) are installed on the side of the claw seat (40), the upper clamping claw (7) and the lower clamping claw (43) are clamped at the annular protrusion (6) of the blocking member (5), and a connecting seat (16) is installed on the away side of the upper clamping claw (7) and the lower clamping claw (43), a driving member (15) is fixed in the connecting seat (16), and a connecting block (17) is fixed at the telescopic end of the driving member (15), and the two U-shaped cutters (9) are provided. ) are respectively fixed on opposite surfaces of the two connecting blocks (17), the opposite ends of the two U-shaped cutters (9) are each provided with an inclined guide surface 1 (10), the inner wall of the U-shaped cutter (9) is provided with a guide surface 2 (11), and the upper clamping jaw (7) and the lower clamping jaw (43) clamp the plugging member (5) and simultaneously drive the U-shaped cutter (9) to move, and the guide surface 1 (10) and the guide surface 2 (11) are used to cut off the glue at the end of the terminal (3), and when the upper clamping jaw (7) and the lower clamping jaw (43) pull the plugging member (5) out of the terminal (3), the U-shaped cutter (9) is pressed against the end of the terminal (3) under the action of the driving member (15).

2. The automated device for vacuum nano-plating of circuit boards according to claim 1, characterized in that: The guide surface one (10) is fixed with a convex strip one (13), and the guide surface two (11) is fixed with a convex strip two (14), and the ends of the convex strip one (13) and the convex strip two (14) are both provided with inclined portions.

3. The automated device for vacuum nano-plating of circuit boards according to claim 2, characterized in that: A sloped surface 1 (12) is provided on a side of the U-shaped cutter (9) away from the connecting terminal (3), and the sloped surface 1 (12) is connected to the guide surface 1 (10).

4. The automated device for vacuum nano-plating of circuit boards according to claim 1, characterized in that: A support frame (30) is fixed to the side of the two U-shaped cutters (9) away from the driving member (15); the side of the support frame (30) is fixedly connected to the side of the connecting block (17); a slider (31) is slidably connected to the inner wall of the support frame (30); a positioning plate (33) is fixed to the side of the slider (31) close to the wiring terminal (3); a spring (32) is fixed to the side of the positioning plate (33) away from the wiring terminal (3); an end of the spring (32) is fixedly connected to the side of the inner wall of the support frame (30) away from the wiring terminal (3); and the two positioning plates (33) are respectively attached to the top and bottom of the wiring terminal (3).

5. The automated device for vacuum nano-plating of circuit boards according to claim 4, characterized in that: A through slot is provided on the positioning plate (33) located at the top of the wiring terminal (3), a round shaft (34) is fixed in the through slot, a push rod (35) is rotatably connected to the round shaft (34), a plane of the push rod (35) at one end close to the upper clamping jaw (7) is in contact with the side of the inner wall of the through slot, an end of the push rod (35) away from the slider (31) is provided with an abutment portion (36), the abutment portion (36) abuts against a side of the inner wall of the slot (4) away from the upper clamping jaw (7), and an end of the push rod (35) close to the upper clamping jaw (7) abuts against the side of the inner wall of the through slot.

6. The automated device for vacuum nano-plating of circuit boards according to claim 5, characterized in that: A second inclined surface (37) is provided on one side of the abutting portion (36) close to the upper clamping jaw (7).

7. The automated device for vacuum nano-plating of circuit boards according to claim 1, characterized in that: The lower clamping jaw (43) has an inner wall with a notch (19), a rotating shaft (20) is fixed to the inner wall of the notch (19), a movable block (21) is rotatably connected to the rotating shaft (20), a U-shaped piece (22) is arranged in the notch (19), the movable block (21) is fixed inside the U-shaped piece (22), the U-shaped piece (22) comprises a protruding portion (26), a vertical portion (25) and a bent portion (24) connected in sequence, the protruding portion (26) is attached to the side of the annular protrusion (6), and the movable block (21) is fixed to the inner wall of the bent portion (24). The top of the curved portion (24) is provided with an upwardly curved arc surface (23), the arc surface (23) is in conflict with the bottom of the annular protrusion (6), the bottom of the curved portion (24) is fixed with an inclined block (29), the side of the U-shaped cutter (9) located below is fixed with a push strip (18), the end of the push strip (18) is in conflict with the side of the inclined block (29), the inner wall of the notch (19) is fixed with a limiting column (28), the side of the curved portion (24) is provided with an arc groove (27), and the limiting column (28) is located inside the arc groove (27).

8. The automated device for vacuum nano-plating of circuit boards according to claim 1, characterized in that: The inner walls of the upper clamping jaw (7) and the lower clamping jaw (43) are both provided with long grooves (8).

9. The automated device for vacuum nano-plating of circuit boards according to claim 1, characterized in that: The workbench (1) is provided with a steering gear (39) for turning over the fixture (38); a second manipulator (44) is provided on a side of the workbench (1) away from the first manipulator (41); a laser emitting head (45) is installed at the end of the second manipulator (44).

10. The coating method for vacuum nano-coating of a circuit board according to claim 1 is applied to an automated device for vacuum nano-coating of a circuit board according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Loading the circuit board body (2) using a loading machine; S2: Using a vibrating plate to feed, the robot grabs the insulating plastic injection-molded plugging part (5); S3: The robot inserts the blocking member (5) into the connection terminal (3) of the circuit board body (2); S4: The circuit board body (2) is moved into the sealing machine, and the glue dispensing machine dispenses glue through the glue injection holes of the sealing member (5) to form a shielding layer; S5: Spraying coupling agent on both sides of the circuit board body (2); S6: The robot places the circuit board body (2) on a drying machine to dry and solidify the glue in the terminal block (3); S7: hoisting the circuit board body (2) into a vacuum chamber of a coating machine for coating; S8: After the coating is completed, the circuit board body (2) is lifted out and moved to the glue removal machine, the robot arm (41) drives the upper clamp (7) and the lower clamp (43) to clamp the annular protrusion (6) of the plugging piece (5), and the glue at the end of the terminal (3) is cut off by the U-shaped cutter (9), and the robot arm (41) drives the upper clamp (7) and the lower clamp (43) to move and pull the plugging piece (5) out of the terminal (3); S9: Use the second manipulator (44) to drive the laser transmitter (45) to move to the mounting hole position of the circuit board body (2), and use the laser transmitter (45) to remove the coating at the mounting hole. Then, the steering gear (39) drives the circuit board body (2) to flip through the fixture (38), so as to remove the coating at the mounting hole position on the other side of the circuit board body (2); S10: Use a visual inspection machine to detect whether there is glue residue in the terminal block (3). If there is no glue residue, the coated circuit board body (2) is packaged. If there is glue residue, manual processing is required, and then the processed circuit board body (2) is packaged.

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