A copper via device for a multi-layer PCB board and a via method thereof

Abstract

The application belongs to the field of PCB board, especially a copper via device of multilayer PCB board and a via method thereof. The existing device needs to place the PCB board in position, then start the device, and take out the PCB board after the punching is completed. The whole process is time-consuming and laborious. After the punching is completed, the finished holes cannot be cleaned, resulting in residual in the holes. The present application includes a side plate and a plurality of PCB board bodies. The top of the side plate is fixedly connected with a top plate. Two symmetrical slide rods are slidably penetrated into the inside of the top plate. The top of the slide rod is fixedly connected with a limiting block. In the application, the descending of the electric push rod can make the two clamping plates close and clamp the PCB board body. The punching operation is completed by the puncher. The inside residual can be cleaned by the cleaning rod. The punching position can be adjusted by the different installation positions of the sliding plate. The illumination position of the spotlight can determine the punching position, thereby improving the accuracy.

Description

A copper through-hole device and method for multilayer PCB boards Technical Field

[0001] This invention relates to the field of PCB technology, and more particularly to a copper through-hole device and method for multilayer PCBs. Background Technology

[0002] Printed circuit boards (PCBs), also known as printed circuit boards, are providers of electrical connections for electronic components. Because PCBs are not typical end products, their terminology is somewhat ambiguous. For example, the motherboard used in personal computers is called a motherboard, not simply a circuit board. Although motherboards contain circuit boards, they are not the same. Therefore, while related, they are not identical when evaluating the industry. Furthermore, because integrated circuit components are mounted on the circuit board, the media refers to it as an IC board, but this is not the same as a printed circuit board. The printed circuit board we usually refer to is a bare board—that is, a circuit board without any components mounted on it.

[0003] A search revealed that utility model CN208714160U discloses a PCB board drilling device, belonging to the technical field of PCB board production equipment, aiming to solve the problem of low drilling efficiency in existing PCB board drilling devices. It includes a base with a support column connected underneath. A groove is formed on the upper surface of the base, and a fixing mechanism for fixing the PCB board is installed within the groove. A drilling mechanism is arranged on one side of the groove on the base. The drilling mechanism includes a column, a crossbeam connected to the top of the column, and a guide rail arranged along the length of the crossbeam. A drilling head is sleeved within the guide rail, and the drilling head is perpendicular to the crossbeam and can slide along the guide rail. A drill bit is installed at the end of the drilling head. This utility model is applicable to PCB board drilling devices.

[0004] The drilling device still has the following defects when in use:

[0005] When drilling, the PCB board needs to be positioned correctly before starting the device. After drilling is completed, it needs to be removed. The whole process is too time-consuming and labor-intensive.

[0006] After drilling, the holes cannot be cleaned, leaving residue inside and causing inconvenience.

[0007] To address the aforementioned problems, this invention proposes a copper through-hole device and method for multilayer PCBs. Summary of the Invention

[0008] This invention provides a copper through-hole device and method for multilayer PCBs, which solves the shortcomings of the prior art, which requires the PCB to be positioned properly before drilling, and the device to be removed after drilling. The whole process is too time-consuming and labor-intensive. After drilling, the holes cannot be cleaned, resulting in residue inside the holes, which is inconvenient to use.

[0009] This invention provides the following technical solution:

[0010] A copper through-hole device and method for a multilayer PCB board includes a side plate and multiple PCB board bodies. A top plate is fixedly connected to the top of the side plate. Two symmetrically arranged sliding rods slide through the interior of the top plate. A limit block is fixedly connected to the top of the sliding rods. The bottom of the two sliding rods is fixedly connected to the same outer cylinder. A drilling component for drilling holes in the PCB board body is provided inside the outer cylinder.

[0011] Four symmetrical support plates are arranged in pairs, all of which are located directly below the top plate. A set of conveying components for conveying the PCB board body is provided between the four support plates.

[0012] A control box is located directly below the top plate, and the control box contains a drive assembly for driving the PCB board body.

[0013] A collection box is disposed on one side of a support plate, and the inside of the collection box is provided with a collection component for collecting the PCB board body.

[0014] In one possible design, the punching assembly includes a groove formed at the bottom of the outer cylinder, a sliding plate slidably connected to the bottom of the groove, a screw passing through the internal thread of the sliding plate, and multiple threaded holes formed on the top inner wall of the groove, the threaded holes being threadedly connected to the screw. A punching machine and a cleaning rod are fixedly connected to the bottom of the sliding plate, and an electric push rod is fixedly connected to the top of the top plate. The piston rod of the electric push rod passes through the top plate and is fixedly connected to the top of the outer cylinder.

[0015] In one possible design, the conveying assembly includes two rotating rollers respectively rotatably connected between the four support plates. The outer walls of the two rotating rollers are fitted with the same conveyor belt. The outer walls of the conveyor belt are fixedly connected with multiple positioning rods. Positioning holes that cooperate with the positioning rods are opened at the four corners of the PCB board body.

[0016] In one possible design, the drive assembly includes a single bidirectional lead screw rotatably connected to the inner walls of both sides of the control box. A gear is fixedly sleeved on the outer wall of the bidirectional lead screw. One end of the bidirectional lead screw rotatably passes through the control box and is fixedly sleeved with a first rotating shaft. Two symmetrically arranged vertical plates are slidably connected to the bottom inner wall of the control box. The bidirectional lead screw is threaded through the two vertical plates. Two symmetrically arranged rectangular holes are opened at the top of the control box. A clamping plate is fixedly connected to the top of the vertical plates through the rectangular holes. A rubber plate is fixedly connected to one end of the clamping plate.

[0017] In one possible design, the collection assembly includes a ramp slidably connected to the inner wall of the collection box, a sponge pad fixedly connected to the top of the ramp, two symmetrically arranged springs fixedly connected between the bottom of the ramp and the bottom inner wall of the collection box, and a baffle fixedly connected to the top of the collection box.

[0018] In one possible design, an L-shaped plate is fixedly connected to one side of the outer cylinder, and a rack is fixedly connected to the bottom of the L-shaped plate. The rack extends into the interior of the control box and meshes with a gear.

[0019] In one possible design, the outer wall of the first rotating shaft is provided with an overrunning clutch, the outer wall of the overrunning clutch is provided with a first synchronous pulley, one end of the rotating roller is fixedly connected to a second rotating shaft, one end of the second rotating shaft passes through a support plate and is fixedly fitted with a second synchronous pulley, and the outer walls of the second synchronous pulley and the first synchronous pulley are driven by the same synchronous belt.

[0020] In one possible design, a hollow tip is fixedly connected to the bottom of the cleaning rod, and a spotlight is installed inside the hollow tip.

[0021] A method for creating through-holes in a multilayer PCB board, characterized by comprising the following steps:

[0022] S1. Mount the PCB board onto the conveyor belt using the positioning rod. Start the electric push rod. The piston rod of the electric push rod drives the outer cylinder to move vertically downward. The outer cylinder drives the punching machine and cleaning rod to move vertically downward. The punching machine starts and punches holes in the PCB board. As the outer cylinder moves downward, it drives the L-shaped plate to move downward. The L-shaped plate drives the rack to move vertically downward. The rack drives the gear to rotate. The gear drives the double-acting screw to rotate. The double-acting screw drives the first rotating shaft to rotate.

[0023] S2. Due to the overrunning clutch, the first rotating shaft cannot drive the overrunning clutch to rotate at this time. The double-acting screw drives the two vertical plates to move closer to each other, and the vertical plates drive the two clamping plates to move closer to each other, thereby clamping the PCB board body and completing the drilling operation at the same time. When the piston rod of the electric push rod retracts, the two clamping plates move away from each other, releasing the PCB board body. At the same time, the first rotating shaft can drive the first synchronous pulley to rotate, and then transmit power to the second rotating shaft through the second synchronous pulley and synchronous belt, thereby driving the rotating roller to rotate, so that the conveyor belt conveys forward, and the PCB board body moves to the next position. This process is repeated to complete the drilling operation.

[0024] S3. The PCB board body with the hole completed is conveyed forward and stops moving when the next hole is drilled. At this time, the cleaning rod enters the hole to clean the residue inside. It continues to be conveyed forward, and the PCB board body falls to the top of the sponge pad and enters the collection box under the cushion of the spring to complete the collection.

[0025] S4. When it is necessary to adjust the drilling position, the screw can be unscrewed and the sliding plate can be slid. The drilling position can be determined by the position of the spotlight, thereby improving the accuracy. After the adjustment is completed, the screw is threaded into the threaded hole to complete the adjustment of the device. It is easy to use.

[0026] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention.

[0027] In this invention, the PCB board body is mounted on the conveyor belt by a positioning rod. The electric push rod is started, and the piston rod of the electric push rod drives the outer cylinder to move vertically downward. The outer cylinder drives the punching machine and the cleaning rod to move vertically downward. The punching machine is started and punches holes in the PCB board body. During the downward movement of the outer cylinder, the L-shaped plate moves downward. The L-shaped plate drives the rack to move vertically downward. The rack drives the gear to rotate. The gear drives the bidirectional lead screw to rotate. The bidirectional lead screw drives the first rotating shaft to rotate.

[0028] In this invention, due to the presence of an overrunning clutch, the first rotating shaft cannot drive the overrunning clutch to rotate. The bidirectional lead screw drives the two vertical plates to move closer together, and the vertical plates drive the two clamping plates to move closer together, thereby clamping the PCB board body and completing the drilling operation. When the piston rod of the electric push rod retracts, the two clamping plates move away from each other, releasing the PCB board body. At the same time, the first rotating shaft can drive the first synchronous pulley to rotate, and then transmit power to the second rotating shaft through the second synchronous pulley and synchronous belt, thereby driving the rotating roller to rotate, so that the conveyor belt conveys forward, and the PCB board body moves to the next position. This process is repeated to complete the drilling operation.

[0029] In this invention, the PCB board body after drilling is conveyed forward and stops moving when drilling again. At this time, the cleaning rod enters the drilled hole to clean the residue inside. It continues to be conveyed forward, and the PCB board body falls to the top of the sponge pad and enters the collection box for collection under the cushioning of the spring.

[0030] In this invention, when it is necessary to adjust the drilling position, the screw can be unscrewed and the sliding plate can be slid. The drilling position can be determined by the illumination position of the spotlight, thereby improving the accuracy. After the adjustment is completed, the screw is threaded into the threaded hole to complete the adjustment of the device, which is convenient to use.

[0031] In this invention, the two clamping plates can be brought close together and clamped to the PCB board body by the descent of the electric push rod. At the same time, the drilling operation is completed by the drilling machine. The internal residue can be cleaned by the cleaning rod. The drilling position can be adjusted by the different installation positions of the sliding plate. The position of the spotlight can be used to determine the drilling position, thereby improving accuracy and making it convenient to use. Attached Figure Description

[0032] Figure 1 is a three-dimensional structural schematic diagram of a copper through-hole device for a multilayer PCB board provided in an embodiment of the present invention;

[0033] Figure 2 is a three-dimensional structural diagram of the control box in a copper through-hole device for a multilayer PCB board provided in an embodiment of the present invention.

[0034] Figure 3 is a three-dimensional structural diagram of the collection box in a copper through-hole device for a multilayer PCB board provided in an embodiment of the present invention.

[0035] Figure 4 is a three-dimensional cross-sectional view of the control box in a copper through-hole device for a multilayer PCB provided in an embodiment of the present invention.

[0036] Figure 5 is a three-dimensional structural diagram of the conveyor belt in a copper through-hole device for a multilayer PCB provided in an embodiment of the present invention.

[0037] Figure 6 is a three-dimensional structural diagram of the PCB board body in a copper through-hole device for a multilayer PCB board provided in an embodiment of the present invention.

[0038] Figure 7 is a three-dimensional structural schematic diagram of the electric push rod in a copper through-hole device for a multilayer PCB board provided in an embodiment of the present invention.

[0039] Figure 8 is a three-dimensional structural diagram of the outer cylinder in a copper through-hole device for a multilayer PCB board provided in an embodiment of the present invention.

[0040] Figure 9 is a three-dimensional structural diagram of a spotlight in a copper through-hole device for a multilayer PCB provided in an embodiment of the present invention.

[0041] Figure label:

[0042] 1. Side plate; 2. L-shaped plate; 3. Limiting block; 4. Top plate; 5. Baffle; 6. Collection box; 7. Support plate; 8. Synchronous belt; 9. Control box; 10. Conveyor belt; 11. PCB board body; 12. First rotating shaft; 13. Overrunning clutch; 14. First synchronous pulley; 15. Rectangular hole; 16. Vertical plate; 17. Clamping plate; 18. Rubber plate; 19. Rack; 20. Inclined plate; 21. Sponge pad; 22. Spring; 23. Two-way lead screw; 24. Gear; 25. Positioning rod; 26. Rotating roller; 27. Second synchronous pulley; 28. Second rotating shaft; 29. ​​Positioning hole; 30. Drilling machine; 31. Screw; 32. Hollow tip; 33. Cleaning rod; 34. Outer cylinder; 35. Sliding rod; 36. Electric push rod; 37. Threaded hole; 38. Sliding plate; 39. Slide groove; 40. Spotlight. Detailed Implementation Methods

[0043] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0044] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the devices are connected to each other and their relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of the present invention, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0045] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0046] In this embodiment of the invention, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0047] References to "one embodiment" or "some embodiments" as used in this specification mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the invention. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless otherwise specifically emphasized. Embodiments

[0048] Referring to Figures 1-9, a copper through-hole device and its through-hole method for a multilayer PCB board includes a side plate 1 and multiple PCB board bodies 11. A top plate 4 is fixedly connected to the top of the side plate 1. Two symmetrically arranged sliding rods 35 slide through the interior of the top plate 4. A limit block 3 is fixedly connected to the top of the sliding rods 35. The bottom of the two sliding rods 35 is fixedly connected to the same outer cylinder 34. A drilling assembly for drilling holes in the PCB board bodies 11 is provided inside the outer cylinder 34. The drilling assembly includes a groove 39 opened at the bottom of the outer cylinder 34. A sliding plate 38 is slidably connected to the bottom of the groove 39. A screw 31 passes through the internal thread of the sliding plate 38. Multiple threaded holes 37 are opened on the top inner wall of the groove 39. The threaded holes 37 are threadedly connected to the screw 31. A drilling machine 30 and a cleaning rod 33 are fixedly connected to the bottom of the sliding plate 38. An electric push rod 36 is fixedly connected to the top of the top plate 4. The piston rod of the electric push rod 36 passes through the top plate 4 and is fixedly connected to the top of the outer cylinder 34.

[0049] Four symmetrical support plates 7 are located directly below the top plate 4. A set of conveying components for conveying the PCB board body 11 is set between the four support plates 7. The conveying components include two rotating rollers 26 that are rotatably connected between the four support plates 7. The outer wall of the two rotating rollers 26 is fitted with the same conveyor belt 10. Multiple positioning rods 25 are fixedly connected to the outer wall of the conveyor belt 10. Positioning holes 29 that cooperate with the positioning rods 25 are opened at the four corners of the PCB board body 11.

[0050] The control box 9 is located directly below the top plate 4. Inside the control box 9 is a drive assembly for driving the PCB board body 11. The drive assembly includes a bidirectional lead screw 23 rotatably connected to the inner walls of both sides of the control box 9. A gear 24 is fixedly sleeved on the outer wall of the bidirectional lead screw 23. One end of the bidirectional lead screw 23 rotatably passes through the control box 9 and is fixedly sleeved with a first rotating shaft 12. Two symmetrically arranged vertical plates 16 are slidably connected to the bottom inner wall of the control box 9. The bidirectional lead screw 23 is threaded through the two vertical plates 16. Two symmetrically arranged rectangular holes 15 are opened on the top of the control box 9. The top of the vertical plates 16 passes through the rectangular holes 15 and is fixedly connected to a clamping plate 17. One end of the clamping plate 17 is fixedly connected to a rubber plate 18.

[0051] A collection box 6 is disposed on one side of the support plate 7. Inside the collection box 6 is a collection assembly for collecting the PCB board body 11. The collection assembly includes an inclined plate 20 slidably connected to the inner wall of the collection box 6. A sponge pad 21 is fixedly connected to the top of the inclined plate 20. Two symmetrically arranged springs 22 are fixedly connected between the bottom of the inclined plate 20 and the bottom inner wall of the collection box 6. A baffle 5 is fixedly connected to the top of the collection box 6. (Example)

[0052] Referring to Figures 1-9, a copper through-hole device and method for a multilayer PCB board includes a side plate 1 and multiple PCB board bodies 11. A top plate 4 is fixedly connected to the top of the side plate 1. Two symmetrically arranged sliding rods 35 slide through the interior of the top plate 4. A limit block 3 is fixedly connected to the top of the sliding rods 35. The bottom of the two sliding rods 35 is fixedly connected to the same outer cylinder 34. A drilling assembly for drilling holes in the PCB board bodies 11 is provided inside the outer cylinder 34. The drilling assembly includes a groove 39 at the bottom of the outer cylinder 34. A sliding plate 38 is slidably connected to the bottom of the groove 39. A screw 31 is threaded through the interior of the sliding plate 38. Multiple threaded holes 37 are provided on the top inner wall of the groove 39. The threaded holes 37 are threadedly connected to the screws 31. A drilling machine 30 and a cleaning rod 33 are fixedly connected to the bottom of the sliding plate 38. A hollow tip 32 is fixedly connected to the bottom of the cleaning rod 33. The interior of the hollow tip 32... A spotlight 40 is provided. An electric push rod 36 is fixedly connected to the top of the top plate 4. The piston rod of the electric push rod 36 passes through the top plate 4 and is fixedly connected to the top of the outer cylinder 34. An L-shaped plate 2 is fixedly connected to one side of the outer cylinder 34. A rack 19 is fixedly connected to the bottom of the L-shaped plate 2. The rack 19 extends into the interior of the control box 9 and meshes with the gear 24. The PCB board body 11 is mounted on the conveyor belt 10 through the positioning rod 25. The electric push rod 36 is started. The piston rod of the electric push rod 36 drives the outer cylinder 34 to move vertically downward. The outer cylinder 34 drives the drilling machine 30 and the cleaning rod 33 to move vertically downward. The drilling machine 30 is started and drills holes in the PCB board body 11. During the downward movement of the outer cylinder 34, the L-shaped plate 2 moves downward. The L-shaped plate 2 drives the rack 19 to move vertically downward. The rack 19 drives the gear 24 to rotate. The gear 24 drives the double-acting screw 23 to rotate. The double-acting screw 23 drives the first rotating shaft 12 to rotate.

[0053] Four symmetrical support plates 7 are located directly below the top plate 4. A set of conveying components for conveying the PCB board body 11 is set between the four support plates 7. The conveying components include two rotating rollers 26 that are rotatably connected between the four support plates 7. The outer wall of the two rotating rollers 26 is fitted with the same conveyor belt 10. Multiple positioning rods 25 are fixedly connected to the outer wall of the conveyor belt 10. Positioning holes 29 that cooperate with the positioning rods 25 are opened at the four corners of the PCB board body 11. When it is necessary to adjust the drilling position, the screw 31 can be unscrewed and the sliding plate 38 can be slid. The drilling position can be determined by the illumination position of the spotlight 40, thereby improving the accuracy. After the adjustment is completed, the screw 31 is threaded into the threaded hole 37 to complete the adjustment of the device. It is convenient to use.

[0054] The control box 9 is located directly below the top plate 4. Inside the control box 9 is a drive assembly for driving the PCB board body 11. The drive assembly includes a single bidirectional lead screw 23 rotatably connected to the inner walls of both sides of the control box 9. A gear 24 is fixedly sleeved on the outer wall of the bidirectional lead screw 23. One end of the bidirectional lead screw 23 rotatably passes through the control box 9 and is fixedly sleeved with a first rotating shaft 12. Two symmetrically arranged vertical plates 16 are slidably connected to the bottom inner wall of the control box 9. The bidirectional lead screw 23 is threaded through the two vertical plates 16. Two symmetrically arranged rectangular holes 15 are opened at the top of the control box 9. A clamping plate 17 is fixedly connected to the top of the vertical plates 16 through the rectangular holes 15. A rubber plate 18 is fixedly connected to one end of the clamping plate 17. An overrunning clutch 13 is provided on the outer wall of the first rotating shaft 12. A first synchronous pulley 14 is provided on the outer wall of the overrunning clutch 13. A second rotating shaft 28 is fixedly connected to one end of the rotating roller 26. One end of the second rotating shaft 28 passes through the support plate 7 and is fixedly fitted with the second synchronous pulley 27. The outer walls of the second synchronous pulley 27 and the first synchronous pulley 14 are fitted with the same synchronous belt 8. Due to the setting of the overrunning clutch 13, the first rotating shaft 12 cannot drive the overrunning clutch 13 to rotate at this time. The double-acting screw 23 drives the two vertical plates 16 to move closer to each other. The vertical plates 16 drive the two clamping plates 17 to move closer to each other, thereby clamping the PCB board body 11 and completing the drilling operation. When the piston rod of the electric push rod 36 retracts, the two clamping plates 17 move away from each other, releasing the PCB board body 11. At the same time, the first rotating shaft 12 can drive the first synchronous pulley 14 to rotate. Then, through the second synchronous pulley 27 and the synchronous belt 8, the power is transmitted to the second rotating shaft 28, thereby driving the rotating roller 26 to rotate, so that the conveyor belt 10 is conveyed forward, so that the PCB board body 11 moves to the next position. This process is repeated to complete the drilling operation.

[0055] Collection box 6 is located on one side of support plate 7. Inside collection box 6 is a collection assembly for collecting PCB board body 11. The collection assembly includes an inclined plate 20 slidably connected to the inner wall of collection box 6. A sponge pad 21 is fixedly connected to the top of inclined plate 20. Two symmetrically arranged springs 22 are fixedly connected between the bottom of inclined plate 20 and the bottom inner wall of collection box 6. A baffle 5 is fixedly connected to the top of collection box 6. After the PCB board body 11 is punched, it is conveyed forward and stops moving when punching another hole. At this time, cleaning rod 33 enters the punched hole to clean the residue inside. It continues to be conveyed forward. The PCB board body 11 falls to the top of sponge pad 21 and enters the collection box 6 for collection under the cushioning of spring 22.

[0056] A method for creating through-holes in a multilayer PCB board, characterized by comprising the following steps:

[0057] S1. The PCB board body 11 is mounted on the conveyor belt 10 via the positioning rod 25. The electric push rod 36 is started. The piston rod of the electric push rod 36 drives the outer cylinder 34 to move vertically downward. The outer cylinder 34 drives the drilling machine 30 and the cleaning rod 33 to move vertically downward. The drilling machine 30 is started and drills holes in the PCB board body 11. During the downward movement, the outer cylinder 34 drives the L-shaped plate 2 to move downward. The L-shaped plate 2 drives the rack 19 to move vertically downward. The rack 19 drives the gear 24 to rotate. The gear 24 drives the double-acting screw 23 to rotate. The double-acting screw 23 drives the first rotating shaft 12 to rotate.

[0058] S2. Due to the overrunning clutch 13, the first rotating shaft 12 cannot drive the overrunning clutch 13 to rotate at this time. The two-way lead screw 23 drives the two vertical plates 16 to move closer to each other, and the vertical plates 16 drive the two clamping plates 17 to move closer to each other, thereby clamping the PCB board body 11 and completing the drilling operation. When the piston rod of the electric push rod 36 retracts, the two clamping plates 17 move away from each other, releasing the PCB board body 11. At the same time, the first rotating shaft 12 can drive the first synchronous pulley 14 to rotate, and then transmit power to the second rotating shaft 28 through the second synchronous pulley 27 and the synchronous belt 8, thereby driving the rotating roller 26 to rotate, so that the conveyor belt 10 is conveyed forward, and the PCB board body 11 moves to the next position. This process is repeated to complete the drilling operation.

[0059] S3. The PCB board body 11 with the hole completed is conveyed forward and stops moving when the next hole is drilled. At this time, the cleaning rod 33 enters the hole to clean the residue inside. It continues to be conveyed forward and the PCB board body 11 falls to the top of the sponge pad 21 and enters the collection box 6 for collection under the cushioning of the spring 22.

[0060] S4. When it is necessary to adjust the drilling position, the screw 31 can be unscrewed and the sliding plate 38 can be slid. The drilling position can be determined by the illumination position of the spotlight 40, thereby improving the accuracy. After the adjustment is completed, the screw 31 is threaded into the threaded hole 37 to complete the adjustment of the device. It is easy to use.

[0061] However, as is well known to those skilled in the art, the working principles and wiring methods of the electric push rod 36 and the drilling machine 30 are commonplace and are all conventional methods or common knowledge. They will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0062] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. In the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A copper through-hole device for a multilayer PCB board, characterized in that, include: Side plate (1) and multiple PCB board bodies (11), the top of the side plate (1) is fixedly connected to a top plate (4), the top plate (4) has two symmetrically arranged sliding rods (35) sliding through it, the top of the sliding rods (35) is fixedly connected to a limit block (3), the bottom of the two sliding rods (35) is fixedly connected to the same outer cylinder (34), the inside of the outer cylinder (34) is provided with a drilling assembly for drilling holes in the PCB board bodies (11); one side of the outer cylinder (34) is fixedly connected to an L-shaped plate (2), the bottom of the L-shaped plate (2) is fixedly connected to a rack (19), the rack (19) extends into the inside of the control box (9) and meshes with a gear (24); two symmetrical four Four support plates (7) are located directly below the top plate (4). A set of conveying components for conveying the PCB board body (11) is provided between the four support plates (7). The conveying components include two rotating rollers (26) respectively rotatably connected between the four support plates (7). The outer walls of the two rotating rollers (26) are fitted with the same conveyor belt (10). Multiple positioning rods (25) are fixedly connected to the outer walls of the conveyor belt (10). Positioning holes (29) that cooperate with the positioning rods (25) are opened at the four corners of the PCB board body (11). A control box (9) is located directly below the top plate (4). The control box (9) has an inner... The control box (9) is provided with a drive assembly for driving the PCB board body (11). The drive assembly includes a bidirectional lead screw (23) rotatably connected to the inner walls of both sides of the control box (9). A gear (24) is fixedly sleeved on the outer wall of the bidirectional lead screw (23). One end of the bidirectional lead screw (23) rotatably passes through the control box (9) and is fixedly sleeved with a first rotating shaft (12). Two symmetrically arranged vertical plates (16) are slidably connected to the bottom inner wall of the control box (9). The bidirectional lead screw (23) is threaded through the two vertical plates (16). Two symmetrically arranged rectangular holes (15) are opened on the top of the control box (9). The top of the vertical plate (16) passes through the rectangular holes (15) and is fixedly connected with a clamping plate (17). One end of the clamping plate (17) is fixedly connected to a rubber plate (18). The outer wall of the first rotating shaft (12) is provided with an overrunning clutch (13). The outer wall of the overrunning clutch (13) is provided with a first synchronous pulley (14). One end of the rotating roller (26) is fixedly connected to a second rotating shaft (28). One end of the second rotating shaft (28) passes through the support plate (7) and is fixedly fitted with a second synchronous pulley (27). The outer walls of the second synchronous pulley (27) and the first synchronous pulley (14) are fitted with the same synchronous belt (8). The collection box (6) is located on one side of the support plate (7). The inside of the collection box (6) is provided with a collection component for collecting the PCB board body (11).

2. The copper through-hole device for a multilayer PCB board according to claim 1, characterized in that, The punching assembly includes a groove (39) at the bottom of the outer cylinder (34), a sliding plate (38) is slidably connected to the bottom of the groove (39), a screw (31) is threaded through the internal thread of the sliding plate (38), a plurality of threaded holes (37) are provided on the top inner wall of the groove (39), the threaded holes (37) are threadedly connected to the screw (31), a punching machine (30) and a cleaning rod (33) are fixedly connected to the bottom of the sliding plate (38), an electric push rod (36) is fixedly connected to the top of the top plate (4), and the piston rod of the electric push rod (36) passes through the top plate (4) and is fixedly connected to the top of the outer cylinder (34).

3. The copper through-hole device for a multilayer PCB board according to claim 2, characterized in that, The collection assembly includes an inclined plate (20) slidably connected to the inner wall of the collection box (6), a sponge pad (21) fixedly connected to the top of the inclined plate (20), two symmetrically arranged springs (22) fixedly connected between the bottom of the inclined plate (20) and the bottom inner wall of the collection box (6), and a baffle (5) fixedly connected to the top of the collection box (6).

4. The copper through-hole device for a multilayer PCB board according to claim 3, characterized in that, The bottom of the cleaning rod (33) is fixedly connected to a hollow tip (32), and a spotlight (40) is provided inside the hollow tip (32).

5. A method for creating a through-hole using the copper through-hole device of a multilayer PCB board as described in claim 4, characterized in that, Specifically, the following steps are included: S1. Mount the PCB board body (11) onto the conveyor belt (10) via the positioning rod (25). Start the electric push rod (36). The piston rod of the electric push rod (36) drives the outer cylinder (34) to move vertically downward. The outer cylinder (34) drives the drilling machine (30) and the cleaning rod (33) to move vertically downward. The drilling machine (30) starts and drills holes in the PCB board body (11). During the downward movement of the outer cylinder (34), it drives the L-shaped plate (2) to move downward. The L-shaped plate (2) drives the rack (19) to move vertically downward. The rack (19) drives... Gear (24) rotates, gear (24) drives double-acting screw (23) to rotate, double-acting screw (23) drives first rotating shaft (12) to rotate; S2, due to the setting of overrunning clutch (13), the first rotating shaft (12) cannot drive overrunning clutch (13) to rotate at this time, double-acting screw (23) drives two vertical plates (16) to move closer to each other, vertical plates (16) drive two clamping plates (17) to move closer to each other, thereby clamping the PCB board body (11) and completing the drilling operation at the same time. When the piston rod of electric push rod (36) retracts, the two clamping plates... The boards (17) move away from each other, releasing the PCB board body (11). At the same time, the first rotating shaft (12) drives the first synchronous wheel (14) to rotate, and then transmits power to the second rotating shaft (28) through the second synchronous wheel (27) and the synchronous belt (8), thereby driving the rotating roller (26) to rotate, so that the conveyor belt (10) is conveyed forward, and the PCB board body (11) moves to the next position. This process is repeated to complete the drilling operation. S3, the PCB board body (11) after drilling is conveyed forward and stops moving when drilling for the next time. At this time, cleaning is carried out. The rod (33) enters the drilled hole to clean the residue inside. It continues to be conveyed forward. The PCB board body (11) falls to the top of the sponge pad (21) and enters the collection box (6) for collection under the buffer of the spring (22). S4. When it is necessary to adjust the drilling position, the screw (31) can be unscrewed and the sliding plate (38) can be slid. The drilling position can be determined by the illumination position of the spotlight (40), thereby improving the accuracy. After the adjustment is completed, the screw (31) is threaded to the threaded hole (37) to complete the adjustment of the device.

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