Plug port shielding device and method for vacuum nano coating of circuit board

Abstract

The invention provides a patch plug port shielding device and method for circuit board vacuum nano coating, and belongs to the technical field of circuit board processing. Comprising a shielding assembly, the shielding assembly comprises a connecting pipe, and one end of the connecting pipe far away from a conductive port body is communicated with an outer ring. According to the invention, through the arrangement of the shielding assembly and the manipulator, when the manipulator shields the conductive port body, the shielding assembly is inserted into the conductive port body through the manipulator, glue is injected into the conductive port body through the shielding assembly, and after glue injection, the conductive port body is cured, so that full shielding of the conductive port body is realized; according to the technical scheme, the possibility that a film coating material enters the conductive port body is lower during film coating, then after film coating is completed, the shielding glue can be pulled out through the shielding assembly, rapid cleaning is achieved, shielding is more convenient through the mechanical arm, and after the shielding assembly is arranged, the using amount of the shielding glue can be reduced, and pulling-out is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board processing, and in particular to a connector port shielding device and method for circuit board vacuum nano-coating. Background Art

[0002] A circuit board is a basic structure used to connect electronic components. It is usually made of insulating materials and has conductive copper lines on the surface to form circuits. After the circuit board is produced, it needs to be coated on the surface of the circuit board. During coating, the circuit board to be coated is first placed on a special fixture to ensure that the circuit board is stable and the conductive port is accurately positioned. Then, a special cleaning agent is used to clean the surface of the circuit board and the conductive port. After removing oil and dust, the conductive port is masked by tape, plastic film, etc. Then, the circuit board is placed in a vacuum coating equipment for the required coating process. Finally, the masking tape or plastic film is removed, and the circuit board is cleaned and inspected as necessary to ensure that the conductive port of the circuit board is clean and undamaged.

[0003] Although the conductive ports can be shielded by means of tape or plastic film, during the shielding process, due to the small intervals between the conductive ports, the shielding is incomplete and unstable, and the coating material may enter the conductive ports. Therefore, the present application provides a connector port shielding device and 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 a connector port shielding device and method for vacuum nano-coating of circuit boards to solve the problem of incomplete and unstable shielding after shielding the conductive ports.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A connector port shielding device for vacuum nano-plating of a circuit board comprises a shielding component, wherein the shielding component comprises a connecting tube, wherein an end of the connecting tube away from a conductive port body is connected to an outer ring, an end of the connecting tube close to the conductive port body is connected to an inner ring, the inner ring is fitted to an open end of the conductive port body, an end of the inner ring close to the conductive port body is connected to a square shell, the square shell is located in the conductive port body, a connecting rod is fixed to a side of the inner ring away from the outer ring, a circular plate is fixed to an end of the connecting rod away from the inner ring, a connecting ring is fixed to an inner wall of the square shell, an inner wall of the connecting ring is fixed to the circumferential surface of the circular plate, and a connecting ring is opened on a side of the connecting ring close to the inner ring. Tear opening 1, an extension plate is fixed at the end of the square shell and near the top position, and a shielding block is fixed at the bottom of the square shell. When the square shell is inserted into the conductive port body, the round plate fits on the end of the conductive sleeve to achieve shielding of the conductive sleeve and the internal conductive needle. The shielding glue enters the square shell from the outer ring, and the internal pressure of the square shell increases, causing the square shell to expand, and the connecting ring breaks from the tear opening. At this time, the outer wall of the square shell fits in the conductive port body, and the square shell drives the extension plate to fit in the bottom of the through groove, so as to achieve overall shielding of the conductive port body and the through groove. At the same time, the square shell drives the shielding block to fit in the inner wall of the guide groove to achieve shielding of the guide groove; A workbench, the circuit board is placed on the workbench, a manipulator is fixed on the base of the workbench, a clamping claw is installed at the end of the manipulator, the clamping claw is clamped on the surface of the connecting pipe, and a glue injection nozzle is fixed at the bottom of the clamping claw.

[0006] Preferably, an upper strip is commonly connected in the wall thickness of the square shell and the extension plate, a lower strip is fixed in the wall thickness of the square shell, and the lower strip is arranged below the upper strip.

[0007] Preferably, a round rod is fixed to one side of the round plate away from the connecting rod, a pulling block is fixed to one end of the round rod away from the round plate, and the pulling block is located between the conductive sleeves.

[0008] Preferably, a guide curved surface is provided on the side of the pulling block away from the circular plate.

[0009] Preferably, a block is fixed to the bottom of the extension plate.

[0010] Preferably, the blocks are staggered.

[0011] Preferably, a square bar is fixed to the bottom of the extension plate.

[0012] Preferably, an annular airbag is fixed at the end of the circular plate, the annular airbag is located in the conductive sleeve, and an air passage is opened on one side of the circular plate close to the inner ring, and the air passage is connected to the annular airbag.

[0013] Preferably, a second tearing opening is provided on the surface of the annular airbag.

[0014] A method for shielding a connector port for vacuum nano-coating of a circuit board is applied to the above-mentioned connector port shielding device for vacuum nano-coating of a circuit board, comprising the following steps: S1: insert the square shell into the conductive port body through the manipulator and the gripper, and inject glue from the outer ring to the inside through the glue injection nozzle. The pressure in the square shell increases, and the gas will enter the annular airbag from the airway. After the annular airbag expands, it will shield the conductive sleeve. At the same time, the square shell is fully unfolded, and the square shell will fit on the inner wall of the conductive port body. The square shell also drives the extension plate to fit on the inner wall of the conductive port body, and the through groove is shielded by the extension plate. The square shell drives the shielding block to move into the guide groove to shield the guide groove. At this time, the shielding glue fills the inner wall of the conductive port body to shield the conductive port body. S2: After the coating is completed, the shielding component is pulled toward a side away from the opening direction of the conductive port body by the manipulator and the clamp until the shielding glue is brought out of the conductive port body together with the shielding component.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, a shielding component and a manipulator are provided. When the conductive port body is shielded by the manipulator, the shielding component is inserted into the conductive port body by the mechanical mobile phone, and glue is injected into the conductive port body through the shielding component. After the glue is injected, it is cured to achieve full shielding of the conductive port body. When coating is performed, the possibility of the coating material entering the conductive port body is lower. Secondly, after the coating is completed, the shielding glue can be pulled outwards through the shielding component to achieve rapid cleaning. The manipulator makes shielding more convenient. After the shielding component is provided, the amount of shielding glue can be reduced, and it is also more convenient to remove.

[0016] By providing the round rod and the pull block, when cleaning the masking glue inside the conductive port body, the round rod and the pull block increase the contact area with the masking glue, making it easier to pull the masking glue outward, thereby preventing the masking glue from remaining in the conductive port body.

[0017] By setting the squares and square strips, after the masking glue is sprayed out from the square shell, the masking glue impacts the square, and the square has an upward force. After the force of the square is transmitted to the extension plate, the extension plate is more stably attached to the inner wall of the conductive port body, so that the shielding is more sufficient. Secondly, the square strips further increase the contact area with the masking glue, and the square strips are attached to the inner wall of the conductive port body, further avoiding the masking glue from remaining in the conductive port body.

[0018] By providing an airway, an annular airbag and tear opening 2, the annular airbag can shield the conductive sleeve, further preventing the shielding glue from entering the conductive sleeve and improving the shielding effect; when the annular airbag is pulled out from the conductive sleeve, the annular airbag will break from tear opening 2, gas will enter the conductive sleeve, and the annular airbag will be concave, making it easier to take out the annular airbag from the conductive sleeve, preventing the annular airbag from driving the conductive sleeve and achieving protection for the conductive sleeve. 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 three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the circuit board of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the conductive port body of the present invention; Figure 4 It is a cross-sectional view of the conductive port body of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure at center; Figure 6 This is a schematic diagram of the shielding assembly of the present invention shielding the conductive port body; Figure 7 It is a schematic diagram of the three-dimensional structure of the guide groove of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the shielding assembly of the present invention; Fig. 9 This is a schematic diagram of the dislocation distribution state of the blocks of the present invention; Fig.10 It is a cross-sectional view of the airway of the present invention; Fig.11 For the present invention Fig.10 A magnified view of the structure at B in the middle; Fig.12 It is a structural schematic diagram of the glue injection nozzle of the present invention.

[0021] [Reference Signs] 1. Conductive port body; 2. Through slot; 3. Conductive needle; 4. Conductive sleeve; 5. Guide slot; 6. Shielding assembly; 7. Connecting tube; 8. Outer ring; 9. Inner ring; 10. Square shell; 11. Connecting rod; 12. Round plate; 13. Connecting ring; 14. Tear one; 15. Extension plate; 16. Shielding block; 17. Upper strip; 18. Lower strip; 19. Round rod; 20. Pull block; 21. Square; 22. Square strip; 23. Airway; 24. Annular airbag; 25. Tear two; 26. Circuit board; 27. Workbench; 28. Robot; 29. ​​Gripper; 30. Glue injection nozzle.

[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 a connector port shielding device and method for circuit board vacuum nano-plating provided by the present invention in conjunction 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 8As shown, an embodiment of the present invention provides a connector port shielding device for vacuum nano-plating of a circuit board, including a shielding component 6, the shielding component 6 includes a connecting tube 7, the connecting tube 7 is connected to an outer ring 8 at one end away from the conductive port body 1, and the connecting tube 7 is connected to an inner ring 9 at one end close to the conductive port body 1, the inner ring 9 is attached to the open end of the conductive port body 1, and the inner ring 9 is connected to a square shell 10 at one end close to the conductive port body 1. The end of the square shell 10 away from the inner ring 9 is in a contracted state in the initial state. When the square shielding glue enters the inside of the square shell 10, the square shell 10 The surface of the square shell 10 can be evenly fitted on the inner wall of the conductive port body 1. The square shell 10 is located in the conductive port body 1. A connecting rod 11 is fixed on the side of the inner ring 9 away from the outer ring 8. A circular plate 12 is fixed on the end of the connecting rod 11 away from the inner ring 9. A connecting ring 13 is fixed on the inner wall of the square shell 10. The inner wall of the connecting ring 13 is fixed on the circumferential surface of the circular plate 12. A tearing opening 14 is opened on the side of the connecting ring 13 close to the inner ring 9. After the tearing opening 14 is set, when the connecting ring 13 is not disconnected from the tearing opening 14, the sealing effect of the connecting ring 13 is not affected. An extension plate 15 is fixed at the end of the square shell 10 and near the top position, and a shielding block 16 is fixed at the bottom of the square shell 10. When the square shell 10 is inserted into the conductive port body 1, the round plate 12 fits on the end of the conductive sleeve 4 to achieve shielding of the conductive sleeve 4 and the internal conductive needle 3. The shielding glue enters the square shell 10 from the outer ring 8, and the internal pressure of the square shell 10 increases, causing the square shell 10 to expand, and the connecting ring 13 breaks from the tearing opening 14. At this time, the outer wall of the square shell 10 fits in the conductive port body 1, and the square shell 10 drives the extension plate 15 to fit on the bottom of the through slot 2, so that the conductive port is generally shielded. The body 1 and the through slot 2 are shielded, and at the same time, the square shell 10 drives the shielding block 16 to fit the inner wall of the guide slot 5 to achieve shielding of the guide slot 5. When shielding the conductive port body 1, the shielding component 6 is inserted into the conductive port body 1, and the conductive port body 1 is injected with glue through the shielding component 6. After the glue is injected, it is cured to achieve full shielding of the conductive port body 1. When coating, the possibility of the coating material entering the conductive port body 1 is lower. Secondly, after the coating is completed, the shielding glue can be pulled outward through the shielding component 6 to achieve rapid cleaning; The workbench 27, the circuit board 26 is placed on the workbench 27, a manipulator 28 is fixed on the base of the workbench 27, a clamp 29 is installed on the end of the manipulator 28, the clamp 29 is clamped on the surface of the connecting tube 7, a glue injection nozzle 30 is fixed at the bottom of the clamp 29, when the shielding component 6 is installed, the manipulator 28 drives the clamp 29 to hold the shielding component 6, and the shielding component 6 is inserted into the conductive port body 1, and then the clamp 29 is released, and the glue injection nozzle 30 is driven by the manipulator 28 to inject glue into the shielding component 6.

[0027] like Figure 3As shown, in this embodiment, an upper strip 17 is commonly connected within the wall thickness of the square shell 10 and the extension plate 15, a lower strip 18 is fixed within the wall thickness of the square shell 10, and the lower strip 18 is arranged below the upper strip 17. The material of the upper strip 17 and the lower strip 18 is relatively hard, so that during the rebound process of the square shell 10, the surface of the square shell 10 is always in a planar state, so that the square shell 10 is more stable and more fully fitted to the inner wall of the conductive port body 1.

[0028] like Figure 3 As shown, in this embodiment, a round rod 19 is fixed to the side of the circular plate 12 away from the connecting rod 11, and a pull block 20 is fixed to the end of the round rod 19 away from the circular plate 12. The pull block 20 is located between the conductive sleeves 4. The contact area with the masking glue is increased by the round rod 19 and the pull block 20. When the masking glue needs to be removed, the masking glue is prevented from remaining in the conductive port body 1.

[0029] like Figure 3 As shown, in this embodiment, a guide curved surface is provided on the side of the pull block 20 away from the circular plate 12, and the pull block 20 is located between the conductive sleeves 4. The guide curved surface is used to guide the pull block 20 to prevent the pull block 20 from being stuck at the end of the conductive sleeve 4.

[0030] like Figure 7 and Figure 8 As shown, in the present embodiment, a block 21 is fixed to the bottom of the extension plate 15. By setting the block 21, the structural strength of the extension plate 15 is increased to prevent the extension plate 15 from bending downward. At the same time, when the masking glue is sprayed out from the square shell 10, the masking glue contacts the block 21, so that the block 21 has an upward force. After the force of the block 21 is transmitted to the extension plate 15, the extension plate 15 and the inner wall of the conductive port body 1 are more fully fitted to prevent the masking glue from flowing out.

[0031] like Figure 8 As shown, in this embodiment, the blocks 21 are staggered. After the staggered arrangement, the masking glue can pass through the staggered positions, making it easier for the masking glue to pass through the blocks 21.

[0032] like Figure 3-Figure 5As shown, in this embodiment, a square bar 22 is fixed to the bottom of the extension plate 15. After the extension plate 15 is attached to the inner wall of the conductive port body 1, the square bar 22 is vertically arranged, and the length of the square bar 22 is the same as the width of the extension plate 15. The square bar 22 is located deeper inside the conductive port body 1. When the masking glue fills the inside of the conductive port body 1, the square bar 22 increases the contact area with the masking glue, and the side of the square bar 22 away from the block 21 is attached to the inner wall of the conductive port body 1, which can avoid the masking glue at the square bar 22 and the conductive port body. 1, when the masking glue needs to be taken out from the conductive port body 1, the square bar 22 can more easily take out the masking glue from the inside of the conductive port body 1 to avoid the masking glue remaining inside the conductive port body 1, the length of the square bar 22 is greater than the width between adjacent conductive sleeves 4, when the square shell 10 is inserted into the conductive port body 1, the inclined square bar 22 can guide the extension plate 15 to avoid the extension plate 15 being stuck at the end of the conductive sleeve 4, so that the square shell 10 can be inserted into the conductive port body 1 more smoothly.

[0033] like Fig. 9 and Fig.10 As shown, in the present embodiment, an annular airbag 24 is fixed at the end of the circular plate 12, and the annular airbag 24 is located in the conductive sleeve 4. An airway 23 is opened on the side of the circular plate 12 close to the inner ring 9, and the airway 23 is connected to the annular airbag 24. The diameter of the airway 23 is small, and the gas can enter the airway 23. When the masking glue enters the airway 23, the masking glue will block the airway 23, and it is difficult for the masking glue to enter the annular airbag 24 from the airway 23, thereby protecting the annular airbag 24. The expansion of the annular airbag 24 is achieved by the masking glue entering the square shell 10. The masking glue presses the air in the square shell 10 into the annular airbag 24, thereby expanding the annular airbag 24. After the annular airbag 24 expands, the annular airbag 24 can shield the conductive sleeve 4 to prevent the masking glue from entering the conductive sleeve 4.

[0034] like Fig.10 As shown, in this embodiment, a tearing hole 25 is provided on the surface of the annular airbag 24. When the annular airbag 24 moves outward, the friction between the annular airbag 24 and the conductive sleeve 4 causes the annular airbag 24 to break at the tearing hole 25. After the annular airbag 24 breaks, the gas in the annular airbag 24 will enter the conductive sleeve 4. After the gas in the annular airbag 24 is released, the annular airbag 24 retracts, causing the annular airbag 24 to detach from the inner wall of the conductive sleeve 4, thereby reducing the friction between the annular airbag 24 and the conductive sleeve 4. At this time, during the outward movement of the annular airbag 24, the pulling force of the annular airbag 24 on the conductive sleeve 4 is reduced, thereby protecting the conductive sleeve 4.

[0035] A method for shielding a connector port for vacuum nano-coating of a circuit board is applied to the above-mentioned connector port shielding device for vacuum nano-coating of a circuit board, comprising the following steps: S1: insert the square shell 10 into the conductive port body 1 through the manipulator 28 and the clamp 29, and inject glue from the outer ring 8 to the inside through the glue injection nozzle 30. The pressure in the square shell 10 increases, and the gas will enter the annular airbag 24 from the airway 23. After the annular airbag 24 expands, it will shield the conductive sleeve 4. At the same time, the square shell 10 is fully unfolded, and the square shell 10 will fit on the inner wall of the conductive port body 1. The square shell 10 also drives the extension plate 15 to fit on the inner wall of the conductive port body 1, and the through groove 2 is shielded by the extension plate 15. The square shell 10 drives the shielding block 16 to move into the guide groove 5 to shield the guide groove 5. At this time, the shielding glue fills the inner wall of the conductive port body 1 to shield the conductive port body 1. S2: After the coating is completed, the shielding component 6 is pulled toward a side away from the opening direction of the conductive port body 1 by the robot 28 and the clamping claw 29 until the shielding glue is brought out of the conductive port 1 body together with the shielding component 6.

[0036] Working principle: Place the circuit board 26 on the workbench 27, clamp the shielding component 6 through the clamping claw 29 on the manipulator 28, insert the square shell 10 into the conductive port body 1, drive the glue injection nozzle 30 to align with the outer ring 8 through the clamping claw 29 on the manipulator 28, and inject glue from the outer ring 8 to the inside. The masking glue will enter the connecting pipe 7 from the outer ring 8, enter the inner ring 9 from the connecting pipe 7, and finally enter the square shell 10. At this time, the pressure in the square shell 10 increases, and the gas will enter the annular airbag 24 from the airway 23. After the annular airbag 24 expands, it will shield the conductive sleeve 4 and At the same time, the masking glue squeezes and expands the square shell 10. When the square shell 10 expands to a certain extent, the connecting ring 13 on the square shell 10 will break from the tearing hole 14, so that the square shell 10 is fully unfolded, and the square shell 10 will fit on the inner wall of the conductive port body 1. The square shell 10 also drives the extension plate 15 to fit on the inner wall of the conductive port body 1, and the through groove 2 is shielded by the extension plate 15. The square shell 10 drives the shielding block 16 to move into the guide groove 5 to shield the guide groove 5. At this time, the masking glue fills the inner wall of the conductive port body 1 to shield the conductive port body 1. After that, the circuit board is plated. When the coating is completed, the manipulator 28 drives the clamping claw 29 to hold the surface of the connecting tube 7, and the manipulator 28 drives the clamping claw 29 to move. The clamping claw 29 drives the connecting tube 7 and the inner ring 9 to drive the square shell 10 to move outward. At the same time, the inner ring 9 moves outward through the connecting rod 11 and the circular plate 12, and the circular plate 12 drives the round rod 19 to move outward. The round rod 19 drives the pulling block 20 to move outward, and the masking glue is driven outward through the pulling block 20. At the same time, in the process of the circular plate 12 moving outward, the friction between the annular airbag 24 and the conductive sleeve 4 causes the annular airbag 24 to break from the tearing opening 25, and the gas in the annular airbag 24 will enter the conductive sleeve 4, and the annular airbag 24 will retract to reduce the friction between the annular airbag 24 and the conductive sleeve 4. In the process of the square shell 10 moving outward, the masking glue is driven outward through the blocks 21 and the square strips 22 on the extension plate 15, and then the circuit board can be cleaned.

[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. A plug port shielding device for vacuum nano-coating of circuit boards, characterized in that: include: A shielding component (6), the shielding component (6) comprising a connecting tube (7), the end of the connecting tube (7) away from the conductive port body (1) being connected to an outer ring (8), the end of the connecting tube (7) close to the conductive port body (1) being connected to an inner ring (9), the inner ring (9) being fitted to an open end of the conductive port body (1), the end of the inner ring (9) close to the conductive port body (1) being connected to a square shell (10), the square shell (10) being located inside the conductive port body (1), a connecting rod (11) being fixed to a side of the inner ring (9) away from the outer ring (8), a circular plate (12) being fixed to an end of the connecting rod (11) away from the inner ring (9), a connecting ring (13) being fixed to an inner wall of the square shell (10), the inner wall of the connecting ring (13) being fixed to the circumferential surface of the circular plate (12), a tearing opening (14) being provided on a side of the connecting ring (13) close to the inner ring (9), and the end of the square shell (10) being provided with a tearing opening (14). An extension plate (15) is fixed at the bottom and near the top of the square shell (10), and a shielding block (16) is fixed at the bottom of the square shell (10). When the square shell (10) is inserted into the conductive port body (1), the circular plate (12) fits on the end of the conductive sleeve (4) to shield the conductive sleeve (4) and the internal conductive needle (3). The shielding glue enters the square shell (10) from the outer ring (8). The internal pressure of the square shell (10) increases, causing the square shell (10) to expand, and the connecting ring (13) breaks from the tearing hole (14). At this time, the outer wall of the square shell (10) fits in the conductive port body (1), and the square shell (10) drives the extension plate (15) to fit on the bottom of the through groove (2), thereby shielding the conductive port body (1) and the through groove (2) as a whole. At the same time, the square shell (10) drives the shielding block (16) to fit on the inner wall of the guide groove (5) to shield the guide groove (5). A workbench (27), the circuit board (26) is placed on the workbench (27), a manipulator (28) is fixed on the base of the workbench (27), a clamping claw (29) is installed at the end of the manipulator (28), the clamping claw (29) is clamped on the surface of the connecting pipe (7), and a glue injection nozzle (30) is fixed at the bottom of the clamping claw (29).

2. The connector port shielding device for circuit board vacuum nano-coating according to claim 1, characterized in that: An upper strip plate (17) is commonly connected within the wall thickness of the square shell (10) and the extension plate (15), a lower strip plate (18) is fixed within the wall thickness of the square shell (10), and the lower strip plate (18) is arranged below the upper strip plate (17).

3. The connector port shielding device for circuit board vacuum nano-plating according to claim 1, characterized in that: A round rod (19) is fixed to one side of the round plate (12) away from the connecting rod (11), a pull block (20) is fixed to one end of the round rod (19) away from the round plate (12), and the pull block (20) is located between the conductive sleeves (4).

4. The connector port shielding device for circuit board vacuum nano-plating according to claim 3, characterized in that: A guide curved surface is provided on the side of the pulling block (20) away from the circular plate (12).

5. The connector port shielding device for circuit board vacuum nano-plating according to claim 1, characterized in that: A block (21) is fixed to the bottom of the extended plate (15).

6. The connector port shielding device for circuit board vacuum nano-coating according to claim 5, characterized in that: The blocks (21) are arranged in a staggered manner.

7. The connector port shielding device for circuit board vacuum nano-coating according to claim 1, characterized in that: A square bar (22) is fixed to the bottom of the extended plate (15).

8. The connector port shielding device for circuit board vacuum nano-plating according to claim 1, characterized in that: An annular airbag (24) is fixed to the end of the circular plate (12), the annular airbag (24) is located inside the conductive sleeve (4), and an air passage (23) is provided on one side of the circular plate (12) close to the inner ring (9), the air passage (23) being in communication with the annular airbag (24).

9. The connector port shielding device for circuit board vacuum nano-coating according to claim 8, characterized in that: The surface of the annular airbag (24) is provided with a second tearing opening (25).

10. A method for shielding a connector port for vacuum nano-coating of a circuit board, applied to a connector port shielding device for vacuum nano-coating of a circuit board as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1: inserting the square shell (10) into the conductive port body (1) through the manipulator (28) and the clamp (29), and injecting glue from the outer ring (8) to the inside through the glue injection nozzle (30), the pressure in the square shell (10) increases, and the gas enters the annular airbag (24) from the airway (23). After the annular airbag (24) expands, it shields the conductive sleeve (4). At the same time, the square shell (10) is fully unfolded, and the square shell (10) is attached to the inner wall of the conductive port body (1). The square shell (10) drives the extension plate (15) to fit the inner wall of the conductive port body (1), and the through groove (2) is shielded by the extension plate (15). The square shell (10) drives the shielding block (16) to move into the guide groove (5) to shield the guide groove (5). At this time, the shielding glue fills the inner wall of the conductive port body (1) to shield the conductive port body (1); S2: After the coating is completed, the shielding component (6) is pulled toward a side away from the opening direction of the conductive port body (1) by the robot (28) and the clamp (29) until the shielding glue is brought out of the conductive port (1) body together with the shielding component (6).

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