A drilling apparatus and drilling system for printed circuit boards

Abstract

The application discloses a kind of drilling processing equipment and drilling system of printed circuit board, it is related to circuit board processing technical field, it solves the problem that existing circuit board is easy to appear deformation when punching, including drilling machine, still including moving seat, one side of moving seat is equipped with synchronous telescopic part, and one mobile end of synchronous telescopic part is fixed with the outer wall of drilling machine, another mobile end is fixed with support frame, and the support frame is fixed with the butt joint frame, the support tube for the bottom of printed circuit board is fixed in butt joint frame inside, support frame bottom is equipped with drilling cleaning mechanism, and the top of drilling cleaning mechanism is located in the mesh inside support tube, the cooperation of synchronous telescopic part and support tube designed in the application can support the bottom of circuit board punching hole when drilling operation is carried out on circuit board, satisfy the efficient and stable support when multiple drilling is carried out on circuit board, can avoid extrusion deformation caused by punching when circuit board is produced.

Description

Technical Field

[0001] This invention relates to the field of circuit board processing technology, specifically to a drilling equipment and system for printed circuit boards. Background Technology

[0002] Printed circuit boards (PCBs) are providers of electrical connections for electronic components.

[0003] Printed circuit boards (PCBs) are an important component of electronic devices, supporting various electronic components such as capacitors and resistors, and enabling electrical connections between them. During PCB manufacturing, holes are drilled into them. Some of these holes are used for positioning during PCB processing, while others are used to fix the pins of electronic components. Due to the dense distribution of holes on the PCB, if the PCB is large and thin, the drill bit may deform it during drilling. Existing Chinese patent document CN111993491B discloses a PCB drilling device. Its structure is designed so that during drilling, air is injected into an inflation chamber, creating an upward pressure on the PCB to counteract the downward pressure. However, when there are many holes on the PCB, air leakage occurs through the holes, resulting in poor support for the PCB. Therefore, this invention proposes a PCB drilling processing equipment and drilling system. Summary of the Invention

[0004] The purpose of this invention is to provide a drilling equipment and system for printed circuit boards that can avoid deformation of the circuit board during drilling, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drilling processing device for printed circuit boards, including a drilling machine and a movable base. A synchronous telescopic component is installed on one side of the movable base, and one movable end of the synchronous telescopic component is fixed to the outer wall of the drilling machine, while the other movable end is fixed to a support frame. A docking frame is fixed to the support frame, and a support tube for abutting against the bottom of the printed circuit board is fixed inside the docking frame. A drilling cleaning mechanism is installed at the bottom of the support frame, and the top of the drilling cleaning mechanism is located inside the support tube.

[0006] Preferably, the drilling cleaning mechanism includes a rotary motor, and a rotating rod is fixed to the output end of the rotary motor via a coupling. The rotating rod extends into the support tube, and a cleaning brush is fixed to the top of the rotating rod located in the support tube. A lifting component is fixed on the docking frame, and the lifting component is fixed to the outer wall of the rotary motor. The designed drilling cleaning mechanism can clean the inside of the drill hole.

[0007] Preferably, the lifting component includes a lifting plate fixed to the outside of the rotating motor, a movable opening is opened at the bottom of the docking frame, and the lifting plate is slidably inserted into the movable opening. A lead screw is rotatably installed inside the docking frame, and the lead screw thread passes through the lifting plate. A lifting motor is fixed on the docking frame, and the output end of the lifting motor is fixed to the top of the lead screw through a coupling. The designed lifting component can drive the lifting of the rotating rod, so that it can extend into the interior when cleaning the drill hole.

[0008] Preferably, the synchronous telescopic component includes two threaded rods that rotatably engage with the movable seat. Each of the two threaded rods has a threaded post threadedly fitted onto its outer side. One of the threaded posts is fixed to the outer wall of the drilling machine, and the other threaded post is fixed to the support frame. Telescopic rods that are fixedly inserted into the movable seat are fixed to the outer wall of the drilling machine and the outer side of the support frame. Synchronous gears are fixed to the outer sides of both threaded rods, and toothed belts are meshed on the outer sides of the two synchronous gears. A synchronous motor is fixed to the outer side of the movable seat via a motor frame, and the output end of the synchronous motor is fixed to one of the threaded rods via a coupling. This synchronous telescopic component design allows the drilling machine and the support tube to move synchronously, ensuring that the circuit board is supported during each drilling operation.

[0009] Preferably, an adjusting wheel is rotatably mounted on the inner side of the docking frame via a bearing seat. A limiting groove is opened on the outer side of the rotating rod. The adjusting wheel is slidably sleeved on the outer side of the rotating rod, and the inner sidewall of the adjusting wheel is slidably engaged with the limiting groove. Cleaning components for removing residual debris from the cleaning brush are installed on both sides of the support tube. The inner side of the adjusting wheel is designed to engage with the limiting groove, so that when the rotating rod rotates, it can drive the adjusting wheel to rotate. At the same time, when the rotating rod moves up and down, it will not drive the adjusting wheel to move.

[0010] Preferably, the cleaning assembly includes a frame plate fixed to the outside of the support tube. The inner side of the frame plate has a moving groove, and a moving platform is slidably inserted into the frame plate. A moving block is fixed to the outside of the moving platform and slidably inserted into the moving groove. Multiple cleaning strips are fixed to the outside of the moving platform. An opening for the cleaning strips to pass through is opened on the side wall of the support tube. A chip removal pipe is fixedly connected to the bottom of the support tube. A bracket is fixed to the outer wall of the support tube, and an adjusting plate is rotatably mounted on the bracket. One end of the adjusting plate has an adjusting port, and a rotating shaft slidably inserted into the adjusting port and rotatably connected to the outside of the moving platform is rotatably connected to it. The other end is fixed with a connecting ball that fits against the outer wall of the adjusting wheel. A pushing component is installed on the outside of the adjusting plate. This cleaning assembly is designed to remove residual debris from the cleaning brush.

[0011] Preferably, the pushing component includes an arc-shaped rod fixed to the outer wall of the support tube. The arc-shaped rod slides through the adjusting plate and has a limit ball fixed at its outer end. An arc-shaped spring for pushing the upper end of the adjusting plate to rotate outward is sleeved on the outer side of the arc-shaped rod. The designed pushing component can satisfy the pushing of the adjusting plate, so that the docking ball at the bottom of the adjusting plate can always be in contact with the outer wall of the adjusting wheel.

[0012] Preferably, a sleeve is rotatably inserted into the bottom of the support tube via a bearing. The sleeve is slidably fitted onto the outside of the rotating rod, and a ratchet that slidably fits onto the rotating rod is fixed at the bottom of the sleeve. A conical cap is fixed at the top. Rotating components that rotate with the ratchet are fixed on both sides of the support tube. A chip removal plate that fits against the inner wall of the support tube is fixed on the outside of the sleeve. The design of the sleeve rotation can assist the rotation of the chip removal plate, which helps to discharge the chips. At the same time, the design of the conical cap can guide the chips and prevent them from adhering to the rotating rod.

[0013] Preferably, the rotating component includes a fixed frame fixed to the outer wall of the support tube and a rod that slides through the fixed frame. One end of the rod is fixed with a push plate that abuts against the outer wall of the ratchet, and the other end is fixed with a U-shaped plate that engages with the adjusting plate. A push spring is sleeved on the outside of the rod that abuts against the U-shaped plate and the fixed frame. The rotating component is designed to push the ratchet by rotating the adjusting plate, thereby driving the rotation of the sleeve and enabling the chip removal plate to remove debris.

[0014] A drilling system for printed circuit boards includes drilling equipment for the printed circuit boards.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] This invention, through the coordinated design of synchronous telescopic components and support tubes, enables targeted support at the bottom of the drilled area of ​​the circuit board during drilling operations. This provides efficient and stable support for multi-hole drilling on the circuit board and avoids extrusion deformation caused by drilling during circuit board production.

[0017] The designed borehole cleaning mechanism can clean the residual slag and burrs inside the borehole. In conjunction with the cleaning components, the borehole cleaning mechanism can continuously process multiple holes. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the invention and its connection with the printed circuit board;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure after the drilling machine is removed in this invention;

[0021] Figure 4 This is a schematic diagram of the connection structure of the support frame, docking frame, and support pipe of the present invention;

[0022] Figure 5 This is a schematic diagram of the lifting component structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the internal structure of the support tube of the present invention after partial cross-section.

[0024] Figure 7 This is a partial sectional view of the support tube of the present invention.

[0025] Figure 8 This is a schematic diagram showing the positional relationship between the ratchet and the two rotating parts of the present invention;

[0026] Figure 9 This is a schematic diagram showing the positional relationship between the cleaning brush and the cleaning strip of the present invention.

[0027] In the diagram: 1-Drilling machine; 2-Moving base; 3-Synchronous telescopic component; 4-Support frame; 5-Connecting frame; 6-Support pipe; 7-Drilling cleaning mechanism; 8-Rotating motor; 9-Rotating rod; 10-Cleaning brush; 11-Lifting component; 12-Lifting plate; 13-Moving port; 14-Screw; 15-Lifting motor; 16-Threaded rod; 17-Threaded column; 18-Telescopic rod; 19-Synchronous gear; 20-Synchronous motor; 21-Adjusting wheel; 22 23-Limiting groove; 24-Cleaning component; 25-Frame plate; 26-Moving groove; 27-Moving table; 28-Moving block; 29-Cleaning strip; 30-Adjusting plate; 31-Adjusting port; 32-Diamond ball; 33-Pushing component; 34-Arc rod; 35-Arc spring; 36-Sleeve; 37-Ratchet; 38-Conical cap; 39-Rotating component; 40-Pushing plate; 41-U-shaped plate; 42-Pushing spring; 43-Chip removal plate. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] Please see Figures 1-5The diagram shows a drilling equipment for printed circuit boards, including a drilling machine 1 and a movable base 2. A synchronous telescopic member 3 is installed on one side of the movable base 2, and one movable end of the synchronous telescopic member 3 is fixed to the outer wall of the drilling machine 1, while the other movable end is fixed to a support frame 4. A docking frame 5 is fixed to the support frame 4, and a support tube 6 for the bottom of the printed circuit board is fixed inside the docking frame 5. A drilling cleaning mechanism 7 is installed at the bottom of the support frame 4, and the top of the drilling cleaning mechanism 7 is located inside the support tube 6.

[0031] It should be noted that during drilling, the drilling machine 1 drives the drill rod to rise and fall to drill holes in the circuit board. After drilling is completed, the moving seat 2 moves to another position and, in conjunction with the synchronous telescopic component 3, drives the drilling machine 1 to move accordingly, enabling drilling operations at multiple locations on the circuit board. During each drilling operation, the bottom of the circuit board is supported by a support tube 6, which prevents the circuit board from deforming.

[0032] It is worth noting that in this solution, the designed drilling cleaning mechanism 7 can also remove impurities from the holes after the circuit board is drilled.

[0033] It should also be noted that drilling machine 1 is existing technology and will not be discussed further here.

[0034] Please refer to Figures 4-7 The drilling cleaning mechanism 7 shown in the figure includes a rotary motor 8. The output end of the rotary motor 8 is fixed with a rotating rod 9 through a coupling. The rotating rod 9 extends into the support tube 6, and a cleaning brush 10 is fixed to the top of the rotating rod 9 located in the support tube 6. A lifting component 11 is fixed on the docking frame 5, and the lifting component 11 is fixed to the outer wall of the rotary motor 8.

[0035] It should be noted that by rotating the motor 8, the rotating rod 9 is driven to rotate, which in turn causes the cleaning brush 10 to rotate. In conjunction with the lifting of the lifting component 11, residual impurities in the hole are removed, and some residual burrs are also polished.

[0036] It is worth noting that the cleaning brush 10 has a conical structure and is made of soft bristles to avoid damaging the inner wall of the hole.

[0037] Please also see Figure 4 and Figure 5 The lifting component 11 shown in the figure includes a lifting plate 12 fixed to the outside of the rotating motor 8. The bottom of the docking frame 5 has a movable opening 13, and the lifting plate 12 is slidably inserted into the movable opening 13. A lead screw 14 is rotatably installed inside the docking frame 5, and the lead screw 14 is threaded through the lifting plate 12. A lifting motor 15 is fixed on the docking frame 5, and the output end of the lifting motor 15 is fixed to the top of the lead screw 14 through a coupling.

[0038] It should be noted that: the rotation of the lifting motor 15 drives the lead screw 14 to rotate, thereby causing the lifting plate 12 to move up and down in the moving port 13, driving the rotation motor 8 and the rotating rod 9 to rise and fall, so that the cleaning brush 10 can be inserted into the hole to clean the hole.

[0039] It is worth noting that the outer side of the lifting plate 12 fits into the inside of the moving port 13, making the lifting plate 12 more stable when moving up and down.

[0040] Additionally, please see Figures 1-3 The synchronous telescopic component 3 shown in the figure includes two threaded rods 16 that are rotatably connected to the movable seat 2. Threaded posts 17 are threadedly sleeved on the outer sides of both threaded rods 16. One threaded post 17 is fixed to the outer wall of the drilling machine 1, and the other threaded post 17 is fixed to the support frame 4. Telescopic rods 18 that are fixedly inserted into the movable seat 2 are fixed to the outer walls of the drilling machine 1 and the support frame 4. Synchronous gears 19 are fixed to the outer sides of both threaded rods 16, and toothed belts are meshed on the outer sides of the two synchronous gears 19. A synchronous motor 20 is fixed to the outer side of the movable seat 2 via a motor frame, and the output end of the synchronous motor 20 is fixed to one of the threaded rods 16 via a coupling.

[0041] It should be noted that: the synchronous motor 20 rotates, driving one of the threaded rods 16 to rotate. Then, driven by the synchronous gear 19 and toothed belt, both threaded rods 16 rotate synchronously, causing the two threaded posts 17 to extend and retract synchronously. This enables the drilling machine 1 and the support tube 6 to move synchronously, ensuring that the bottom of the circuit board is supported by the support tube 6 during each drilling operation, preventing deformation of the circuit board due to drilling.

[0042] Methods to avoid deformation when drilling circuit boards: First, the installation personnel are required to position the circuit board between the drilling machine 1 and the support tube 6. Then, the drilling operation is performed on the circuit board by moving the inner drill rod of the drilling machine 1 up and down. During drilling, the support tube 6 can abut against the bottom of the circuit board, thereby preventing the circuit board from deforming due to the drilling and squeezing operation. Under the action of the synchronous telescopic component 3, the drilling machine 1 and the support tube 6 can move synchronously, so that the drilling position of the circuit board can be accurately supported each time a hole is drilled, thus avoiding deformation.

[0043] After drilling a hole, the rotating rod 9 is rotated by the rotating motor 8, and in conjunction with the rotation of the lifting motor 15, the rotating rod 9 rotates and moves upward, so that the cleaning brush 10 is inserted into the drilled hole to clean the residual hole debris and burrs.

[0044] In this solution, a drilling system for printed circuit boards includes drilling equipment for printed circuit boards.

[0045] Example 2

[0046] Please see Figures 5-7 and Figure 9 This embodiment further illustrates Example 1. In the figure, the inner side of the docking frame 5 is rotatably mounted with an adjusting wheel 21 via a bearing seat. The outer side of the rotating rod 9 has a limit groove 22. The adjusting wheel 21 is slidably sleeved on the outer side of the rotating rod 9, and the inner side wall of the adjusting wheel 21 is slidably engaged with the limit groove 22. The two sides of the support tube 6 are equipped with cleaning components 23 for removing residual debris from the cleaning brush 10.

[0047] The cleaning component 23 includes a frame plate 24 fixed to the outside of the support tube 6. The inner side of the frame plate 24 is provided with a moving groove 25, and a moving platform 26 is slidably inserted into the frame plate 24. A moving block 27 is fixed to the outside of the moving platform 26 and is slidably inserted into the moving groove 25. Multiple cleaning strips 28 are fixed to the outside of the moving platform 26. An opening for the cleaning strips 28 to pass through is opened on the side wall of the support tube 6. A chip removal pipe is fixedly connected to the bottom of the support tube 6. A bracket is fixed to the outer wall of the support tube 6, and an adjusting plate 29 is rotatably installed through the bracket. An adjusting port 30 is opened at one end of the adjusting plate 29, and a rotating shaft that is rotatably connected to the outside of the moving platform 26 is slidably inserted into the adjusting port 30. A docking ball 31 that fits against the outer wall of the adjusting wheel 21 is fixed at the other end. A pusher 32 is installed on the outside of the adjusting plate 29.

[0048] It should be noted that: when the adjusting wheel 21 is slidably engaged with the limiting groove 22, the rotating rod 9 can drive the adjusting wheel 21 to rotate when it rotates. At the same time, the extension and retraction of the rotating rod 9 will not drive the adjusting wheel 21 to move. When the adjusting wheel 21 rotates due to the rotation of the rotating rod 9, it will squeeze the docking ball 31, causing the docking ball 31 to move along the outer wall of the adjusting wheel 21, thereby driving the adjusting plate 29 to rotate. When the adjusting plate 29 rotates, the upper docking moving platform 26 will slide in the frame plate 24, and through the pusher 32, the docking ball 31 at the bottom of the adjusting plate 29 will always be in contact with the adjusting wheel 21 and can be reset. By driving the moving platform 26 to reciprocate, the cleaning strip 28 can be moved back and forth. The cleaning strip 28 extends into the cleaning brush 10 and can remove the residual hole debris on the cleaning brush 10, making it convenient for the cleaning brush 10 to remove impurities in the next hole.

[0049] It should also be noted that the discharged slag, debris and other impurities can be discharged through the chip discharge pipe. At the same time, the opening on the support pipe 6 can only allow the cleaning strip 28 to move, so that impurities on the outside of the cleaning strip 28 can be discharged.

[0050] It is worth noting that there are three protrusions on the outer side of the adjusting wheel 21. When each protrusion contacts the docking ball 31, it will cause the docking ball 31 to be pushed outward. The two adjusting plates 29 are located on both sides of the support tube 6. This ensures that when the adjusting wheel 21 rotates, one adjusting plate 29 will always rotate open while the other does not. This also ensures that when the cleaning brush 10 rotates inside the support tube 6, the cleaning strip 28 will always remove the residual impurities on it.

[0051] Please also see Figure 4 The pusher 32 shown in the figure includes an arc-shaped rod 33 fixed on the outer wall of the support tube 6. The arc-shaped rod 33 slides through the adjustment plate 29 and has a limit ball fixed at its outer end. An arc-shaped spring 34 is sleeved on the outer side of the arc-shaped rod 33 for pushing the upper end of the adjustment plate 29 to rotate outward.

[0052] It should be noted that the arc spring 34 is designed to push the adjusting plate 29 so that the mating ball 31 at the bottom of the adjusting plate 29 can always abut against the outer wall of the adjusting wheel 21, so that the upper end of the adjusting plate 29 can be opened when the mating ball 31 is not mating with the protrusion on the outer wall of the adjusting wheel 21.

[0053] In this design, when the rotating rod 9 rotates, it drives the adjusting wheel 21 to rotate synchronously, thereby causing the two docking balls 31 to move accordingly. With the help of the pushing member 32, the upper end of the adjusting plate 29 can rotate accordingly, and the moving table 26 and the cleaning strip 28 can be inserted and withdrawn accordingly. This allows the cleaning strip 28 to remove residual slag from the cleaning brush 10. At the same time, the insertion and withdrawal of the cleaning strip 28 can remove the residual impurities on the cleaning strip 28 and discharge them to the bottom of the support tube 6. The bottom of the support tube 6 is fixedly connected to the chip removal pipe for discharge.

[0054] The rest of the structure is the same as in Example 1.

[0055] Example 3

[0056] Please see Figures 6-8 This embodiment further illustrates other embodiments. In the figure, the bottom of the support tube 6 is rotatably inserted with a sleeve 35 through a bearing. The sleeve 35 is slidably sleeved on the outside of the rotating rod 9. The bottom of the sleeve 35 is fixed with a ratchet 36 that is slidably sleeved with the rotating rod 9, and the top is fixed with a conical cap 37. Rotating parts 38 that are adjusted to rotate with the ratchet 36 are fixed on both sides of the support tube 6. A chip removal plate 43 that is in contact with the inner wall of the support tube 6 is fixed on the outside of the sleeve 35.

[0057] The rotating component 38 includes a fixed frame fixed to the outer wall of the support tube 6 and a sliding rod 39 that slides through the fixed frame. One end of the rod 39 is fixed with a push plate 40 that abuts against the outer wall of the ratchet 36, and the other end is fixed with a U-shaped plate 41 that engages with the adjusting plate 29. A push spring 42 that abuts against the U-shaped plate 41 and the fixed frame is sleeved on the outside of the rod 39.

[0058] It should be noted that: each time the adjusting plate 29 swings, it will drive the U-shaped plate 41 to move accordingly. Since the outer side of the insert rod 39 is fitted with a push spring 42, the U-shaped plate 41 also exerts an outward pushing force on the adjusting plate 29, so that the docking ball 31 at the bottom of the adjusting plate 29 can stably fit against the outer wall of the adjusting wheel 21. At the same time, the U-shaped plate 41 will also abut against the adjusting plate 29. When the two adjusting plates 29 swing in turn, they can drive the two push plates 40 to abut against the outer teeth of the ratchet 36 in turn, thereby realizing the rotation of the ratchet 36, driving the rotation of the chip removal plate 43, which can help guide the debris into the chip removal pipe.

[0059] It is worth noting that the end of the chip removal pipe can be connected to a negative pressure vacuum pump for adsorbing debris.

[0060] It should also be noted that the outer side of the ratchet 36 has many beveled tooth blocks. One pusher plate 40 is pressing the innermost end of the beveled tooth block of the ratchet 36, while the other pusher plate 40 is pointing to the outermost end of the beveled tooth block. After the two adjusting plates 29 swing in response, the pusher plate 40 that was initially against the innermost end of the beveled tooth block retracts, and the other pusher plate 40 begins to press the beveled tooth block, pushing the ratchet 36 to rotate and continuing to push until it is pressed to the innermost end of the beveled tooth block. At this time, the other pusher plate 40 begins to point to the outermost end of the beveled tooth block. The two pusher plates 40 push in this cycle, thereby realizing the rotation of the ratchet 36 and also causing the chip removal plate 43 to rotate.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drilling device for printed circuit boards, comprising: Drilling machine (1); Its characteristic is that it further includes: The movable seat (2) is equipped with a synchronous telescopic component (3) on one side, and one movable end of the synchronous telescopic component (3) is fixed to the outer wall of the drilling machine (1), and the other movable end is fixed with a support frame (4). A docking frame (5) is fixed to the support frame (4). A support tube (6) for the bottom of the printed circuit board is fixed inside the docking frame (5). A drilling and cleaning mechanism (7) is installed at the bottom of the support frame (4), and the top of the drilling and cleaning mechanism (7) is located inside the support tube (6). The drilling and cleaning mechanism (7) includes a rotating motor (8). The output end of the rotating motor (8) is fixed to a rotating rod (9) through a coupling. The rotating rod (9) extends into the support tube (6) and is located inside the support tube (6). A cleaning brush (10) is fixed to the top of the moving rod (9). A lifting component (11) is fixed on the docking frame (5), and the lifting component (11) is fixed to the outer wall of the rotating motor (8). An adjusting wheel (21) is rotatably installed on the inner side of the docking frame (5) through a bearing seat. A limit groove (22) is opened on the outer side of the rotating rod (9). The adjusting wheel (21) is slidably sleeved on the outer side of the rotating rod (9), and the inner side wall of the adjusting wheel (21) is slidably engaged with the limit groove (22). The two sides of the support tube (6) are equipped with cleaning brushes for... The cleaning component (23) for removing residual debris from the cleaning brush (10) includes a frame plate (24) fixed to the outside of the support tube (6). The inner side of the frame plate (24) has a moving groove (25), and a moving platform (26) is slidably inserted into the frame plate (24). A moving block (27) is fixed to the outside of the moving platform (26) and slidably inserted into the moving groove (25). Multiple cleaning strips (28) are fixed to the outside of the moving platform (26). The side wall of the support tube (6) has... An opening for the cleaning strip (28) to pass through is provided, and a chip removal pipe is fixedly connected to the bottom of the support tube (6). A bracket is fixed to the outer wall of the support tube (6), and an adjustment plate (29) is rotatably installed through the bracket. An adjustment port (30) is opened at one end of the adjustment plate (29), and a rotating shaft that is rotatably connected to the outer side of the moving platform (26) is slidably inserted into the adjustment port (30). A docking ball (31) that fits against the outer wall of the adjustment wheel (21) is fixed at the other end. A pusher (32) is installed on the outer side of the adjustment plate (29).

2. The drilling equipment for printed circuit boards according to claim 1, characterized in that: The lifting component (11) includes a lifting plate (12) fixed to the outside of the rotating motor (8). The bottom of the docking frame (5) has a movable opening (13), and the lifting plate (12) is slidably inserted into the movable opening (13). A lead screw (14) is rotatably installed inside the docking frame (5), and the lead screw (14) is threaded through the lifting plate (12). A lifting motor (15) is fixed on the docking frame (5), and the output end of the lifting motor (15) is fixed to the top of the lead screw (14) through a coupling.

3. The drilling equipment for printed circuit boards according to claim 1, characterized in that: The synchronous telescopic component (3) includes two threaded rods (16) that are rotatably connected to the movable seat (2). The outer sides of the two threaded rods (16) are threaded with threaded columns (17). One of the threaded columns (17) is fixed to the outer wall of the drilling machine (1), and the other threaded column (17) is fixed to the support frame (4). The outer walls of the drilling machine (1) and the outer sides of the support frame (4) are both fixed with telescopic rods (18) that are fixedly inserted into the movable seat (2). The outer sides of the two threaded rods (16) are both fixed with synchronous gears (19), and the outer sides of the two synchronous gears (19) are meshed with toothed belts. The outer side of the movable seat (2) is fixed with a synchronous motor (20) through a motor frame, and the output end of the synchronous motor (20) is fixed to one of the threaded rods (16) through a coupling.

4. The drilling equipment for printed circuit boards according to claim 1, characterized in that: The pusher (32) includes an arc-shaped rod (33) fixed on the outer wall of the support tube (6). The arc-shaped rod (33) slides through the adjustment plate (29) and has a limit ball fixed at its outer end. An arc-shaped spring (34) for pushing the upper end of the adjustment plate (29) to rotate outward is sleeved on the outer side of the arc-shaped rod (33).

5. The drilling equipment for printed circuit boards according to claim 1, characterized in that: The bottom of the support tube (6) is rotatably connected to a sleeve (35) via a bearing. The sleeve (35) is slidably sleeved on the outside of the rotating rod (9). The bottom of the sleeve (35) is fixed with a ratchet (36) that is slidably sleeved with the rotating rod (9), and the top is fixed with a conical cap (37). Rotating parts (38) that are adjusted to rotate with the ratchet (36) are fixed on both sides of the support tube (6). A chip removal plate (43) that fits against the inner wall of the support tube (6) is fixed on the outside of the sleeve (35).

6. The drilling equipment for printed circuit boards according to claim 5, characterized in that: The rotating component (38) includes a fixed frame fixed to the outer wall of the support tube (6) and a sliding rod (39) that passes through the fixed frame. One end of the rod (39) is fixed with a push plate (40) that abuts against the outer wall of the ratchet (36), and the other end is fixed with a U-shaped plate (41) that engages with the adjusting plate (29). A push spring (42) that abuts against the U-shaped plate (41) and the fixed frame is sleeved on the outside of the rod (39).

7. A drilling system for printed circuit boards, characterized in that, The equipment includes the drilling equipment for printed circuit boards as described in any one of claims 1-6.

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