PCB (Printed Circuit Board) multi-station drilling equipment with automatic drill bit switching function

Abstract

The invention provides drill bit automatic switching type PCB multi-station drilling equipment which comprises a machine table, a machine shell is fixedly installed on the top of the machine table, a drilling unit is assembled in the machine shell, a bearing assembly is assembled on the top of the machine table in the machine shell, a feeding unit is assembled on the front face of the machine table, and a loading unit is assembled on the top of the feeding unit. A nursing unit matched with the loading unit is assembled in the loading unit, and a loading unit is assembled on the front face of the feeding unit; the positioning part comprises a triangular positioning seat, four groups of adjusting assemblies are assembled at the bottom of the adjusting assembly in a butt joint mode, a plurality of mutually-communicated suction nozzles are arranged at the bottom of the triangular positioning seat, and a suction cup is assembled at the bottom of the triangular positioning seat. Drill bits of different specifications or abrasion degrees can be stored through the main loading base and the auxiliary loading base respectively, when the main loading base drill bits work, the auxiliary loading base drill bits can be maintained synchronously, and the equipment shutdown drill replacement time is shortened; and the idle drill bit can be subjected to surface cleaning and cooling through negative pressure airflow.

Description

Technical Field

[0001] This invention relates to the field of PCB board processing technology, and more specifically to a multi-station drilling equipment for PCB boards with automatic drill bit switching. Background Technology

[0002] Driven by the rapid development of the electronic information industry, printed circuit boards (PCBs), as core interconnection components in electronic devices, have been widely used in various electronic products such as smartphones, computers, and new energy vehicles. As electronic devices continue to evolve towards high-density integration, miniaturization, and multi-functionality, the requirements for PCB drilling accuracy, processing efficiency, and mass production stability are becoming increasingly stringent. In the PCB manufacturing process, the drilling process is a key link that affects the electrical performance of the circuit and the assembly accuracy of components. It typically includes a series of steps such as PCB loading, positioning, drilling, drill bit maintenance, and waste collection, and must adapt to the processing needs of different hole diameters and PCB sizes. However, the PCB drilling equipment currently used in the industry still has significant technical bottlenecks. The various process steps are relatively dispersed, and manual intervention is frequent. Specifically, the existing technology has the following main drawbacks: 1. During the PCB board drilling process, the replacement of drill bits mainly relies on manual operation, which is not only inefficient but also affects the continuity of production. At the same time, existing equipment generally lacks an effective drill bit maintenance structure, which makes it easy for debris and contaminants to remain on the drill bit surface, thereby causing a decline in drilling quality and affecting the reliability of the PCB board.

[0003] 2. During the placement and drilling of PCB boards, there is a lack of precise and adjustable positioning devices. Currently, the common practice is to manually apply adhesive strips to fix the PCB board to the processing platform, and then manually remove them after processing. This method is cumbersome and cannot adapt to the needs of rapid switching between different sized PCB boards and high-precision processing, thus restricting the flexibility and efficiency of production. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-station drilling device for PCB boards with automatic drill bit switching, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An automatic bit-switching multi-station PCB drilling machine includes: a machine base; a housing fixedly mounted on the top of the machine base; a drilling unit assembled inside the housing; a support component assembled on the top of the machine base inside the housing; a feeding unit assembled on the front of the machine base; a loading unit assembled on the top of the feeding unit; a cooperating care unit assembled inside the loading unit; and a material-carrying unit assembled on the front of the feeding unit. The feeding unit includes a feeding component and a shifting component. The loading unit includes a loading frame, a drill bit loading component, an adjustment component, and positioning components. The shifting component is assembled on the front of the machine base; the loading frame is actively rotatably mounted on the back of the shifting component; an adjustment component is assembled at the bottom of the loading frame; four sets of positioning components are mated at the bottom of the adjustment component; and the drill bit loading component is actively slidably mounted on the top of the loading frame. The top is fitted with a drill bit; the positioning component includes a triangular positioning seat, and four sets are fitted to the bottom of the adjustment component. The bottom of the triangular positioning seat is equipped with multiple interconnected suction nozzles, and a suction cup is fitted to the bottom of the triangular positioning seat. The triangular positioning seat is used to adsorb and connect with the carrying component; the care unit includes a care component, which is installed inside the drill bit loading component. The care component is used to eject and maintain the drill bit inside the drill bit loading component; the material loading unit includes material loading component one, material loading component two, and a feeding component is installed on the front of the switching component. Material loading component two is installed at the bottom of the feeding component. Material loading component one is installed at the bottom of the feeding component in front of material loading component two. A fixed part is installed on one side of the feeding component for pushing material loading component one. The feeding component is used to pick up material from material loading component one and material loading component two.

[0006] Furthermore, the supporting component includes a carrier plate, a groove plate, and a movable joint. A longitudinal rail is fixedly installed on the top of the machine base. A carrier plate for longitudinal movement is mounted on the top of the longitudinal rail. The top of the carrier plate is connected to the groove plate. The front sides of the groove plate and the carrier plate are movably connected through the movable joint. A drilled pad is provided on the top of the groove plate. Handles are fixedly connected to both sides of the groove plate.

[0007] Furthermore, the drill bit loading assembly includes a main loading seat and an auxiliary loading seat. A sliding plate is slidably connected inside the loading frame. A three-wheeled drive screw threaded through the sliding plate is rotatably mounted on the loading frame. A support frame is fixedly mounted on the top of the sliding plate. The main loading seat and the auxiliary loading seat are fixedly mounted on the top of the support frame respectively. Loading sleeves are evenly distributed on the top of the main loading seat and the auxiliary loading seat. The drill bit is inserted into the main loading seat and the auxiliary loading seat through the loading sleeves. A flexible clamp is fixedly connected inside the loading sleeve. The main loading seat and the auxiliary loading seat limit and fix the drill bit through the flexible clamp.

[0008] Furthermore, the adjustment assembly includes an active slide rail 1, a mounting groove, and an active lead screw 1. Two sets of active slide rail 1 are fixedly installed at the bottom of the loading frame. The active slide rail 1 is actively slidably mounted on the mounting groove. Two sets of guide blocks 1 are slidably mounted inside the mounting groove. An active lead screw 1 that passes through the guide block 1 is actively rotatably installed inside the mounting groove. The threads on the active lead screw 1 are counter-threads. A mounting frame and a sleeve are fixedly installed at the bottom of the guide block 1. An air inlet head 2 and an air inlet head 1 are actively telescopically installed at the bottom of the mounting frame. The air inlet head 1 is used to receive external air, and the air inlet head 2 is used to connect to an external air extraction pipe. An active pin 1 is mated and installed on the outer side of the sleeve, and the positioning end of the active pin 1 extends into the sleeve. The top of the positioning component is respectively connected to a one-way air outlet valve and a docking plate. The one-way air outlet valve is connected to the air inlet head 2. The suction nozzle is connected to the one-way air outlet valve and the one-way air inlet valve. The one-way air inlet valve is connected to the air inlet head 1. The docking plate is fixedly installed on the outside of the triangular positioning seat, and the docking plate is inserted into the sleeve plate.

[0009] Furthermore, the shifting component includes a second active lead screw and a second guide block. The second guide block is slidably mounted on the machine base. The second active lead screw, which drives the second guide block, is actively rotatably mounted on the machine base. The second active lead screw is threaded through the second guide block. A vertical plate is fixedly mounted on the top of the second guide block. A sliding plate is slidably mounted on the side of the vertical plate. A telescopic cylinder is fixedly mounted on the top of the sliding plate. The output end of the telescopic cylinder passes through the sliding plate and is installed and connected to the top surface of the vertical plate. A rotary motor is fixedly mounted on the side of the sliding plate. A connecting seat is installed on the output end of the rotary motor, and the connecting seat is fixedly connected to the loading frame. The feeding assembly includes a support plate. The support plate is fixedly installed on the front of the guide block 2. The active slide rail 2 is fixedly installed on the top of the support plate. The rotary cylinder is fixedly installed on the sliding end of the active slide rail 2. The robotic arm is fixedly installed on the top of the rotary cylinder. The output end of the robotic arm is connected to the suction plate. The robotic arm acts on the material loading assembly 1 and the material loading assembly 2 through the suction plate.

[0010] Furthermore, the material loading assembly includes a material loading box, a docking interface is provided at the bottom of the support plate, and a docking frame is fixedly installed on the top of the material loading box, and the docking frame and the docking interface are combined with each other. The feeding assembly also includes an active pin two. An active pin two is fixedly installed on one side of the support plate, and the output end of the active pin two extends into the docking interface and is used to position the docking frame. The material carrier box has material carrier plates evenly distributed inside, and the material carrier plates slide with the material carrier box. PCB boards are placed inside the material carrier plates. The second material loading assembly includes a new material bin and a waste material bin. A connecting frame is fixedly installed on the bottom of the support plate. Both the bottom of the material loading bin and the connecting frame are fixedly installed with casters. Two sets of trays are fixedly installed on the bottom of the connecting frame. The new material bin and the waste material bin are placed on the two sets of trays respectively. The new material bin contains aluminum sheets laid on the top surface of the PCB board. The waste material bin is used to collect the aluminum sheets after drilling.

[0011] Furthermore, the material pushing assembly includes a lifting frame, a lifting frame is fixedly installed on one side of the support plate, an active slide rail three is fixedly installed on the side of the lifting frame, a material pushing plate is actively slidably mounted on the active slide rail three, a rack is fixedly installed at the bottom of the material pushing plate, a gripper is fixedly installed at the end of the rack, the gripper is used to clamp the docking frame, and an active gear one is fixedly installed on the rack, and the active gear one is used to mesh and drive the rack.

[0012] Furthermore, the nursing unit also includes a drive assembly, which is mounted inside the support frame, and the nursing assembly is mounted on the drive assembly; The drive assembly includes a guide plate, a crossbeam, and a toothed track. Both sides of the guide block are fixedly installed with active slide rails four. Active slide rails four are equipped with active sliding crossbeams, and a crossbeam is set on the crossbeam. A guide plate is slidably installed on the crossbeam. An active gear two is fixedly installed on the guide plate, and the active gear two meshes with the toothed track for transmission. The nursing assembly is assembled on the top of the guide plate.

[0013] Furthermore, the nursing component includes a telescopic cylinder II, a top plate, and a mounting cylinder. The telescopic cylinder II is fixedly mounted on the top of the guide plate, and the top plate is connected to the output end of the telescopic cylinder II. A rotating seat is fixedly mounted on the top of the top plate, and the mounting cylinders are rotatably mounted inside the rotating seat. Cleaning brushes are installed in a circular array on the inner wall of the mounting cylinders, and a flexible push head is fixedly mounted at the bottom inside the mounting cylinders. A negative pressure air inlet is connected to the outer side of the rotating seat, and a gear ring is fixedly mounted on the outer side of the mounting cylinders. A drive gear III is assembled on the top plate, and the drive gear III meshes with the gear ring for drive.

[0014] Furthermore, the drilling unit includes an active guide rail and a backing plate. The active guide rail is fixedly installed inside the housing, and the backing plate is actively slidably mounted on the active guide rail. Two sets of telescopic plates are fixedly installed on the front of the backing plate. Telescopic cylinder three is fixedly installed on the telescopic plates. A connecting plate is fixedly installed together with the bottom of the telescopic cylinder three and the telescopic plate. An installation sleeve is fixedly installed at the bottom of the connecting plate. A buffer spring is fixedly installed inside the installation sleeve. A pressure sleeve extending out of the installation sleeve is fixedly connected to the bottom of the buffer spring. An active drill chuck extending into the pressure sleeve is fixedly installed inside the installation sleeve, and a drill head in drilling mode is connected to the output end of the active drill chuck.

[0015] This invention provides a multi-station drilling device for PCB boards with automatic drill bit switching. Compared with the prior art, it has the following advantages: 1. The main and auxiliary loading seats can store drill bits of different specifications or wear levels separately, allowing for simultaneous maintenance of drill bits in the auxiliary loading seat while the drill bits in the main loading seat are working, reducing equipment downtime for drill bit replacement; when the main and auxiliary loading seats can store drill bits of different specifications or wear levels separately: 2. It can clean the surface of idle drill bits and cool them down with negative pressure airflow, avoiding drill bit blockage or high-temperature aging caused by waste residue, thus extending the service life of the drill bits; 3. The maintenance component can be moved in conjunction with the adjustment component to cover all drill bit positions, automating the maintenance process without manual intervention, reducing maintenance costs and equipment downtime; the flexible clamping blocks of the loading sleeve can elastically hold drill bits of different diameters, avoiding drill bit deformation caused by rigid clamping, while also preventing drill bits from shaking during storage, ensuring alignment accuracy during switching. 4. The triangular positioning seat uses the negative pressure adsorption of the suction cup and the suction nozzle to achieve precise positioning from the four corners of the PCB board, avoiding PCB board displacement during drilling and ensuring drilling position accuracy. 5. The one-way valve can control negative pressure adsorption and air pressure release separately. During adsorption, the sealing performance is good, ensuring positioning stability; during release, air is introduced to quickly break the vacuum. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 A schematic diagram of the transposition assembly and loading frame structure of the present invention is shown; Figure 3 A schematic diagram of the feeding assembly and the loading assembly of the present invention is shown; Figure 4 A schematic diagram of the loading rack and adjustment assembly of the present invention is shown; Figure 5 A schematic diagram of the feeding assembly and pushing assembly of the present invention is shown; Figure 6 A schematic diagram of the positioning component and adjustment assembly of the present invention is shown; Figure 7 A schematic diagram of the internal structure of the drill bit loading assembly of the present invention is shown; Figure 8 A schematic diagram of the drive component and care component of the present invention is shown; Figure 9A schematic diagram of the nursing component structure of the present invention is shown. Figure 10 A schematic diagram of the drilling unit structure of the present invention is shown; Figure 11 The present invention is shown. Figure 1 A magnified structural diagram of part A in the diagram; Figure 12 The present invention is shown. Figure 2 A schematic diagram of the enlarged structure of part B in the diagram; Figure 13 A schematic diagram of the internal structure of the main loading seat and loading sleeve of the present invention is shown; Figure 14 A schematic diagram of the internal structure of the auxiliary loading seat and loading sleeve of the present invention is shown; Figure 15 A schematic diagram of the housing and drilling unit structure of the present invention is shown; In the diagram: 100, machine base; 101, machine casing; 200. Load-bearing component; 201. Carrier plate; 202. Longitudinal rail; 203. Movable joint; 204. Drilling pad; 205. Handle; 206. Groove plate; 300. Loading unit; 301. Loading rack; 310. Drill bit loading assembly; 311. Main loading seat; 312. Auxiliary loading seat; 313. Loading sleeve; 314. Support frame; 315. Flexible clamp; 316. Slide plate; 317. Drive screw three; 320. Adjustment component; 321. Active slide rail one; 322. Mounting slot; 323. Active lead screw one; 324. Guide block one; 325. Active pin one; 326. Sleeve plate; 327. Air inlet one; 328. Air inlet two; 329. Mounting bracket; 330. Positioning component; 331. Triangular positioning seat; 332. Suction cup; 333. Suction nozzle; 334. One-way air inlet valve; 335. One-way air outlet valve; 336. Docking plate; 400. Material loading unit; 410. Material loading assembly one; 411. Material box; 412. Casters; 413. Connecting frame; 414. Material loading plate; 420. Material loading assembly two; 421. New material bin; 422. Waste material bin; 423. Connecting frame; 424. Pallet; 500. Feeding unit; 510. Feeding assembly; 511. Support plate; 512. Active slide rail II; 513. Rotary cylinder; 514. Robotic arm; 515. Suction plate; 516. Active pin II; 520. Positioning assembly; 521. Second active lead screw; 522. Second guide block; 523. Slide plate; 524. Vertical plate; 525. First telescopic cylinder; 526. Rotary motor; 527. Connecting seat; 530. Pushing assembly; 531. Lifting frame; 532. Pushing plate; 533. Rack; 534. Active slide rail three; 535. Active gear one; 536. Gripper; 537. Guide block; 600. Nursing Unit; 610. Drive assembly; 611. Guide plate; 612. Crossbeam; 613. Toothed track; 614. Drive slide rail four; 615. Drive gear two; 616. Drive slide rail four; 620. Nursing components; 621. Telescopic cylinder II; 622. Top plate; 623. Drive gear III; 624. Mounting cylinder; 625. Cleaning brush; 626. Flexible push head; 627. Gear ring; 628. Rotary seat; 629. Negative pressure air inlet; 700. Drilling unit; 701. Active guide rail; 702. Backing plate; 703. Telescopic plate; 704. Telescopic cylinder three; 705. Connecting plate; 706. Mounting sleeve; 707. Pressure sleeve; 708. Active drill chuck; 709. Buffer spring; 800. Drill bit. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, 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.

[0019] Example To address the technical problems mentioned in the background section, the following automatic bit switching type PCB multi-station drilling equipment is provided: Combination Figures 1-15 As shown, the automatic drill bit switching type PCB board multi-station drilling equipment provided by the present invention includes: a machine base 100, a housing 101 fixedly installed on the top of the machine base 100, a drilling unit 700 assembled inside the housing 101, a bearing component 200 assembled on the top of the machine base 100 inside the housing 101, a feeding unit 500 assembled on the front of the machine base 100, a loading unit 300 assembled on the top of the feeding unit 500, a cooperating care unit 600 assembled inside the loading unit 300, and a material loading unit 400 assembled on the front of the feeding unit 500. The feeding unit 500 includes a feeding component 510 and a shifting component 520; the loading unit 300 includes a loading frame 301, a drill bit loading component 310, an adjusting component 320, and a positioning component 330; the shifting component 520 is mounted on the front of the machine base 100, the loading frame 301 is actively rotatably mounted on the back of the shifting component 520, the adjusting component 320 is mounted on the bottom of the loading frame 301, four sets of positioning components 330 are docked and mounted on the bottom of the adjusting component 320, the drill bit loading component 310 is actively slidably mounted on the top of the loading frame 301, and a drill bit 800 is inserted and placed inside the top of the drill bit loading component 310. The positioning component 330 includes a triangular positioning seat 331. The bottom of the adjustment component 320 is fitted with four sets of suction nozzles 333 that are connected to each other. The bottom of the triangular positioning seat 331 is provided with a suction cup 332. The triangular positioning seat 331 is used to adsorb and connect with the support component 200. The nursing unit 600 includes a nursing component 620, which is installed inside the drill bit loading component 310. The nursing component 620 is used to eject and maintain the drill bit 800 inside the drill bit loading component 310. The material loading unit 400 includes a first material loading component 410, a second material loading component 420, and a third material loading component 430. The front of the shifting component 520 is equipped with a feeding component 510, the bottom of the feeding component 510 is equipped with a second material loading component 420, the bottom of the feeding component 510 in front of the second material loading component 420 is equipped with a first material loading component 410, and a fourth material loading component 430 is fixedly installed on one side of the feeding component 510. The fourth material loading component 510 is used to push the first material loading component 410 and the fifth material loading component 420.

[0020] In the above scheme 1. Loading Unit 500: A connecting component for PCB board and drill bit repositioning and loading, with the following technical advantages: 1.1 The robotic arm can accurately pick up PCB boards and aluminum sheets through the suction plate, realizing automated feeding from the material loading unit to the load-bearing component, eliminating the need for manual handling and reducing the risk of PCB board scratches; The robotic arm can be adjusted in conjunction with a rotary cylinder to adapt to the material requirements of PCBs of different sizes and placement angles, ensuring the accuracy of subsequent drilling.

[0021] 1.2 It can drive the loading unit to achieve lateral movement, lifting and adjusting and 90° rotation, accurately docking the loading unit and the bearing component, avoiding drill bit switching errors or PCB board positioning offset caused by displacement deviation; The fast response speed of the switching action can quickly complete the process change of switching drill bits for positioning PCB boards, thereby improving the continuous operation capability of the equipment; 2. Loading unit 300: A functional component for drill bit storage, switching, and PCB board positioning, with the following technical effects: 2.1 The main and auxiliary loading seats can store drill bits of different specifications or wear levels respectively, so that when the drill bit in the main loading seat is working, the drill bit in the auxiliary loading seat can be maintained simultaneously, reducing the downtime for changing drill bits. 2.2 It can clean the surface of idle drill bits and cool them down with negative pressure airflow, so as to avoid drill bit blockage or high temperature aging caused by waste residue, and extend the service life of drill bits. 2.3 The maintenance component can be moved in conjunction with the adjustment component to cover all drill bit positions, automating the maintenance process without manual intervention, reducing maintenance costs and equipment downtime; The flexible clamping blocks of the loading sleeve can elastically hold drill bits of different diameters, avoiding drill bit deformation caused by rigid clamping, while also preventing drill bits from shaking during storage and ensuring alignment accuracy during switching. 2.4. Through the coordinated drive of the slide rail and the lead screw, the horizontal and vertical spacing of the positioning components can be precisely adjusted to adapt to the positioning requirements of PCB boards of different sizes, without the need to replace the positioning components, thus improving the versatility of the equipment. The sleeve and active pin enable quick docking and separation of the adjustment component and the positioning component, ensuring rapid deployment and retrieval of the positioning component and improving positioning efficiency; 2.5 The triangular positioning seat uses the negative pressure adsorption of the suction cup and the suction nozzle to achieve precise positioning from the four corners of the PCB board, avoiding PCB board displacement during drilling and ensuring drilling position accuracy; The one-way valve can control negative pressure adsorption and air pressure release separately. During adsorption, it has good sealing performance and ensures positioning stability; during release, it can quickly break the vacuum by introducing air.

[0022] 3. Material Carrying Unit 400: A component for storing PCB boards and aluminum sheets and collecting waste materials, which has the following technical effects: 3.1 The carrier board stores PCBs in layers to avoid PCB deformation caused by stacking and squeezing, and at the same time facilitates accurate material picking by the loading components; The material bin precisely connects to the feeding unit via a docking frame, eliminating the need for manual positioning, thus improving feeding efficiency and making it suitable for batch PCB board storage.

[0023] 3.2. New material bins should be used to store aluminum sheets in an orderly manner to avoid wrinkles or contamination, ensure that the aluminum sheets are laid flat, and reduce scratches on the PCB board surface during drilling. Waste bins collect waste aluminum sheets after drilling in a timely manner to prevent waste aluminum sheets from scattering and polluting equipment or the production environment, and to facilitate subsequent recycling. 3.3 The grippers work in conjunction with the gear rack to automatically push out the material plate in the material box, eliminating the need for manual pulling out of the material plate, reducing material handling errors and improving material handling efficiency.

[0024] In this embodiment, the supporting component 200 includes a carrier plate 201, a groove plate 202, and a movable joint 203. A longitudinal rail 202 is fixedly installed on the top of the machine base 100. The top of the longitudinal rail 202 is equipped with a carrier plate 201 for longitudinal movement. The top of the carrier plate 201 is connected to a groove plate 206. The front of the groove plate 206 and the carrier plate 201 are movably connected through the movable joint 203. A drilled pad 204 is provided on the top of the groove plate 206. Handles 205 are fixedly connected to both sides of the groove plate 206.

[0025] Stable load-bearing and movement effect: The longitudinal track 202 of the load-bearing component 200 provides stable support for the carrier board 201. The carrier board 201 can move longitudinally through the longitudinal track 202, which drives the PCB board to adjust the drilling position, adapting to the drilling needs of multiple stations. There is no need to manually move the PCB board, which improves drilling efficiency. The drilling pad 204 can protect the bottom of the PCB board, avoid damage to the load-bearing structure during drilling, and ensure uniform drilling depth. Convenient maintenance: The slot plate 206 and the carrier plate 201 are connected by a movable joint 203. The handle 205 makes it easy for personnel to flip the slot plate 206, quickly remove and replace the worn drill pad 204, reduce equipment downtime and ensure production continuity.

[0026] In this embodiment, the drill bit loading assembly 310 includes a main loading seat 311 and a secondary loading seat 312. A sliding plate 316 is slidably connected inside the loading frame 301. An active lead screw 317 that passes through the sliding plate 316 is rotatably mounted on the loading frame 301. A support frame 314 is fixedly mounted on the top of the sliding plate 316. The main loading seat 311 and the secondary loading seat 312 are fixedly mounted on the top of the support frame 314 respectively. Loading sleeves 313 are evenly distributed on the top of the main loading seat 311 and the secondary loading seat 312. The drill bit 800 is inserted into the main loading seat 311 and the secondary loading seat 312 through the loading sleeves 313. A flexible clamping block 315 is fixedly connected inside the loading sleeve 313. The main loading seat 311 and the secondary loading seat 312 limit and fix the drill bit 800 through the flexible clamping block 315.

[0027] Stable storage and adaptability: The main loading seat 311 and auxiliary loading seat 312 of the drill bit loading assembly 310 store drill bits through the loading sleeve 313. The flexible clamp 315 can elastically limit drill bits of different sizes to prevent drill bit shaking and ensure switching accuracy. The main and auxiliary loading seats store drill bits separately, which can realize the alternating use and maintenance of drill bits and improve the continuous operation capability of the equipment. Buffering protection effect: The elastic material of the flexible clamp 315 can buffer the impact force when the drill bit is inserted, avoid rigid collision between the drill bit and the loading sleeve, reduce drill bit damage, and extend service life.

[0028] In this embodiment, the adjustment component 320 includes an active slide rail 321, a mounting groove 322, and an active lead screw 323. Two sets of active slide rails 321 are fixedly installed at the bottom of the loading frame 301. The active slide rails 321 are all actively slidingly mounted on the mounting groove 322. Two sets of guide blocks 324 are slidably mounted inside the mounting groove 322. The active lead screw 323, which passes through the guide block 324, is actively rotatably mounted inside the mounting groove 322. The threads on the active lead screw 323 are opposing threads. The bottom of the guide block 324 is fixedly installed with a mounting frame 329 and a sleeve plate 326. The bottom of the mounting frame 329 is actively telescopically mounted with an air inlet 328 and an air inlet 327. The air inlet 327 is used to receive external air, and the air inlet 328 is used to connect to an external air extraction pipe. An active pin 325 is mated and installed on the outer side of the sleeve plate 326, and the positioning end of the active pin 325 extends into the sleeve plate 326. The top of the positioning component 330 is respectively connected to a one-way air outlet valve 335 and a docking plate 336. The one-way air outlet valve 335 is connected to the second air inlet head 328. The suction nozzle 333 is connected to the one-way air outlet valve 335 and the one-way air inlet valve 334. The one-way air inlet valve 334 is connected to the first air inlet head 327. The docking plate 336 is fixedly installed on the outside of the triangular positioning seat 331, and the docking plate 336 is inserted into the sleeve plate 326.

[0029] Flexible adjustment of positioning effect: The active slide rail 321 of the adjustment component 320 drives the mounting groove 322 to move longitudinally, and the active lead screw 323 of the opposing thread drives the guide block 324 to move laterally, which can quickly adjust the longitudinal and lateral spacing of the positioning component 330, adapt to different sized PCB boards, and make adjustment convenient and efficient; the sleeve plate 326 and the docking plate 336 are plugged in to ensure precise connection between the positioning component and the adjustment component; Stable adsorption and convenient release: The second air inlet 328 of the positioning component 330 is connected to the one-way air outlet valve 335. The negative pressure is used to adsorb and fix the suction nozzle 333 and suction cup 332, ensuring positioning stability; the first air inlet 327 is connected to the one-way air inlet valve 334. The introduction of air can quickly release the negative pressure, realize the convenient release of the positioning component, avoid PCB board displacement, and improve positioning and release efficiency.

[0030] In this embodiment, the shifting component 520 includes a second active lead screw 521 and a second guide block 522. The second guide block 522 is slidably mounted on the machine base 100. The second active lead screw 521 for driving the second guide block 522 is actively rotatably mounted on the machine base 100, and the second active lead screw 521 is threaded through the second guide block 522. A vertical plate 524 is fixedly mounted on the top of the second guide block 522. A slide plate 523 is slidably mounted on the side of the vertical plate 524. A telescopic cylinder 525 is fixedly mounted on the top of the slide plate 523. The output end of the telescopic cylinder 525 passes through the slide plate 523 and is installed and connected to the top surface of the vertical plate 524. A rotary motor 526 is fixedly mounted on the side of the slide plate 523. The output end of the rotary motor 526 is installed with a connecting seat 527, and the connecting seat 527 is fixedly connected to the loading frame 301. The feeding assembly 510 includes a support plate 511. The support plate 511 is fixedly installed on the front of the guide block 2 522. The active slide rail 2 512 is fixedly installed on the top of the support plate 511. The rotary cylinder 513 is fixedly installed on the sliding end of the active slide rail 2 512. The robotic arm 514 is fixedly installed on the top of the rotary cylinder 513. The suction plate 515 is connected to the output end of the robotic arm 514. The robotic arm 514 acts on the loading assembly 1 410 and the loading assembly 2 420 through the suction plate 515.

[0031] Precise repositioning effect: The active lead screw 2 521 of the repositioning component 520 drives the guide block 2 522 to move laterally, the telescopic cylinder 1 525 drives the slide plate 523 to rise and fall, and the rotary motor 526 drives the loading frame 301 to rotate, realizing the horizontal, vertical and rotary multi-directional repositioning of the loading unit, accurately connecting the bearing component and the material unit, and improving the repositioning accuracy and efficiency. Flexible feeding effect: The active slide rail 512 of the feeding component 510 drives the rotary cylinder 513 and the robotic arm 514 to move laterally. The rotary cylinder 513 adjusts the angle of the robotic arm, and the robotic arm 514 flexibly grabs the PCB board and aluminum sheet through the suction plate 515, realizing the precise picking and feeding of different materials, adapting to the feeding needs of multiple workstations, and improving feeding efficiency.

[0032] In this embodiment, the material loading assembly 410 includes a material loading box 411, a docking interface is provided at the bottom of the support plate 511, and a docking frame 413 is fixedly installed on the top of the material loading box 411, and the docking frame 413 and the docking interface are combined with each other. The feeding assembly 510 also includes an active pin 2 516. The active pin 2 516 is fixedly installed on one side of the support plate 511, and the output end of the active pin 2 516 extends into the docking interface and is used for positioning the docking frame 413. The material carrier box 411 has material carrier plates 414 evenly distributed inside, and the material carrier plates 414 are slidably connected to the material carrier box 411. A PCB board is placed inside the material carrier plate 414. The material loading assembly 420 includes a new material bin 421 and a waste material bin 422. A connecting frame 423 is fixedly installed on the bottom of the support plate 511. Both the bottom of the material loading bin 411 and the connecting frame 423 are fixedly installed with casters 412. Two sets of trays 424 are fixedly installed on the bottom of the connecting frame 423. The new material bin 421 and the waste material bin 422 are placed on the two sets of trays 424 respectively. The new material bin 421 contains aluminum sheets laid on the top surface of the PCB board. The waste material bin 422 is used to collect the aluminum sheets after drilling.

[0033] Orderly storage effect: The material bin 411 of the material loading component 1 410 stores PCB boards in layers through the material loading plate 414, avoiding stacking damage, and the material loading plate can slide to facilitate material retrieval; the new material bin 421 of the material loading component 2 420 stores aluminum sheets and the waste bin 422 collects waste materials, with clear classification to avoid confusion and reduce waste and environmental pollution. Precise docking effect: The docking frame 413 of the material box 411 and the docking interface of the support plate 511 are matched, and the active pin 516 positions the docking frame to ensure precise docking of the material loading component and the feeding component without manual assistance, thus improving feeding efficiency; the moving wheel 412 facilitates the movement of the material box and the connecting frame, improving the flexibility of the equipment.

[0034] In this embodiment, the material pushing assembly 530 includes a lifting frame 531. The lifting frame 531 is fixedly installed on one side of the support plate 511. An active slide rail 534 is fixedly installed on the side of the lifting frame 531. A guide block 537 is actively slidably mounted on the active slide rail 534. A pushing plate 532 is slidably connected to the guide block 537. A rack 533 is fixedly installed at the bottom of the pushing plate 532. A gripper 536 is fixedly installed at the end of the rack 533. The gripper 536 is used to clamp the docking frame 413. An active gear 535 is fixedly installed on the guide block 537. The active gear 535 is used to mesh and drive the rack 533.

[0035] Automatic feeding effect: The active slide rail 3 534 of the feeding component 530 drives the guide block 537 to move laterally, and the active gear 1 535 drives the rack 533 to move the feeding plate 532 and the gripper 536. The gripper holds the edge of the loading plate, which can automatically push the loading plate out of the loading box without manual operation, thus improving the material picking efficiency. Stable feeding effect: The high precision of the gear and rack transmission allows for precise control of the feeding force and position, avoiding jamming of the carrier board or displacement of the PCB board, and ensuring the quality and continuity of feeding.

[0036] In this embodiment, the nursing unit 600 further includes a drive assembly 610, which is mounted inside the support frame 314, and the nursing assembly 620 is mounted on the drive assembly 610. The drive assembly 610 includes a guide plate 611, a crossbeam 612, and a toothed track 613. Both sides of the guide block 324 are fixedly installed with active slide rails 616. The active slide rails 616 are equipped with an active sliding crossbeam 612, and a crossbeam 6123 is provided on the crossbeam 612. The guide plate 611 is slidably installed on the crossbeam 612. An active gear 615 is fixedly installed on the guide plate 611, and the active gear 615 meshes with the toothed track 613 for transmission. The nursing assembly 620 is assembled on the top of the guide plate 611.

[0037] Multi-directional precision drive effect: The active slide rail 616 of the drive component 610 drives the crossbeam 612 to move longitudinally, and the active gear 615 meshes with the toothed track 613 to drive the guide plate 611 to move laterally. This can drive the care component 620 to move in both longitudinal and lateral directions, covering all drill bit positions and improving the maintenance range and flexibility. Stable drive effect: The gear rack and slide rail work together to achieve high transmission precision, preventing shaking or deviation of the maintenance components when they move, preventing collisions with the drill bit, and ensuring safe and thorough maintenance.

[0038] In this embodiment, the nursing component 620 includes a telescopic cylinder 621, a top plate 622, and a mounting cylinder 624. The telescopic cylinder 621 is fixedly mounted on the top of the guide plate 611. The top plate 622 is connected to the output end of the telescopic cylinder 621. A rotating seat 628 is fixedly mounted on the top of the top plate 622. The mounting cylinder 624 is rotatably mounted inside the rotating seat 628. A cleaning brush 625 is installed in a ring array on the inner wall of the mounting cylinder 624. A flexible push head 626 is fixedly mounted at the bottom inside the mounting cylinder 624. A negative pressure air inlet 629 is connected to the outer side of the rotating seat 628. A gear ring 627 is fixedly mounted on the outer side of the mounting cylinder 624. A drive gear 623 is mounted on the top plate 622, and the drive gear 623 meshes with the gear ring 627 for drive.

[0039] Multifunctional maintenance effect: The telescopic cylinder 621 of the care component 620 drives the installation cylinder 624 to rise and fall, and the soft pusher 626 can push out the drill bit to assist in switching. The drive gear 623 drives the gear ring 627 to rotate the mounting cylinder 624, and the cleaning brush 625 cleans impurities from the drill bit surface; the negative pressure air inlet 629 creates negative pressure, sucks out impurities and introduces airflow to cool the drill bit, realizing integrated maintenance of ejection, cleaning and cooling, improving maintenance efficiency and drill bit performance.

[0040] In this embodiment, the drilling unit 700 includes an active guide rail 701 and a backing plate 702. The active guide rail 701 is fixedly installed inside the housing 101. The backing plate 702 is actively slidably mounted on the active guide rail 701. Two sets of telescopic plates 703 are fixedly installed on the front of the backing plate 702. Telescopic cylinders 704 are fixedly installed on the telescopic plates 703. A connecting plate 705 is fixedly installed on the bottom of the telescopic cylinders 704 and the telescopic plates 703. An installation sleeve 706 is fixedly installed on the bottom of the connecting plate 705. A buffer spring 709 is fixedly installed inside the installation sleeve 706. A pressure sleeve 707 extending out of the installation sleeve 706 is fixedly connected to the bottom of the buffer spring 709. An active drill chuck 708 extending into the pressure sleeve 707 is fixedly installed inside the installation sleeve 706. A drill head 800 in drilling mode is connected to the output end of the active drill chuck 708.

[0041] Precise and stable drilling effect: The active guide rail 701 of the drilling unit 700 drives the back plate 702 to move laterally and adjust the drilling position; the telescopic cylinder 704 drives the active drill chuck 708 and the drill head 800 to rise and fall; the pressure sleeve 707, together with the buffer spring 709, first presses and fixes the PCB board to prevent the PCB board from shifting, while ensuring the drill bit to drill stably and improve drilling accuracy. Waste removal effect: The suction pipe on the pressure sleeve 707 can remove drilling waste in time, avoiding the accumulation of waste that may clog the drill bit or scratch the PCB board, keeping the equipment clean and reducing the frequency of maintenance.

[0042] Working principle and usage process of this invention: S1, Loading Material During this process, the PCB to be drilled needs to be placed on the drilling pad 204 before drilling. The operator pushes the material box 411 to position 100 on the machine platform, then mates the material box 411 with the docking interface via the top docking frame 413. The second active pin 516 is activated to push the docking frame 413 into position. Then, the second active slide rail 512 on the support plate 511 is activated, causing its components to slide linearly. This is to move the vertical plate 524 to the position of the material box 411. Next, the third active slide rail 534 is activated to drive the guide block 537 to move linearly. This process needs to be done sequentially from high to low. When pushing the material, the gripper 536 is activated first to clamp the edge of the material plate 414, and then the first active gear 535 is activated. The motor drives the pusher plate 532 through meshing with the rack 533, causing the pusher plate 532 to drive the front gripper 536 to push out the carrier plate 414. At the same time, the PCB inside the carrier plate 414 will be pushed synchronously. Then, the suction plate 515 at the end of the robotic arm 514 will complete the suction and extraction of the PCB. After extraction, the carrier plate 414 is pulled back and reset. The extracted PCB will be moved to the top of the drilling pad 204 by the movement and rotation of the active slide rail 512 and the rotary cylinder 513. Finally, it can be lowered onto the drilling pad 204 by the robotic arm 514. Then the robotic arm 514 returns to the position of the new material barrel 421 and extracts the aluminum sheet in the new material barrel 421 according to the above extraction steps, and then covers it on the PCB board to be drilled. S2, Positioning PCB Board After the installation is completed, the rotary motor 526 can be started, which drives the connecting seat 527 and simultaneously drives the loading frame 301 to tilt down 90°, switching the loading frame 301 from the vertical state to the horizontal state. Then, the second active screw 521 is started to drive the second guide block 522 to move horizontally synchronously. Then, the motor on the third active screw 317 drives the sliding plate 316 to move longitudinally. The purpose is to adjust the loading frame 301 to the position of the plate to be drilled and ensure that the triangular positioning seat 331 corresponds to the four corners of the plate. Then, the telescopic cylinder 525 is started to synchronize the sliding plate 523 to descend, which synchronously drives the loading frame 301 to be lowered. The purpose is to lower the triangular positioning seat 331 to the four corners of the plate. Before lowering, the longitudinal spacing between the triangular positioning seats 331 needs to be adjusted by starting the active slide rail 321, and then the motor on the active lead screw 323 is started to drive the guide block 324 to adjust the lateral spacing. The purpose is to ensure that the four corners of the triangular positioning seats 331 correspond to the four corners of the plate below. During lowering, the triangular positioning seat 331 is placed at the four corners of the plate, and its bottom is in contact with the top surface of the drilling pad 204 through the suction cup 332. The telescopic cylinder on the second air inlet 328 is activated to drive the lowering and dock with the one-way air outlet valve 335. Then, the external air pump is activated to perform air extraction through the air pipe docking with the second air inlet 328. At that time, a negative pressure effect is generated in the suction nozzle 333, which, together with the suction cup 332, completes the adsorption and fixation between the triangular positioning seat 331 and the drilling pad 204. Then, the telescopic cylinder drives the second air inlet 328 to retract. When the triangular positioning seat 331 is adsorbed and connected to the drilling pad 204, the pneumatic active pin 325 can be used to retract it, release the positioning state between the docking plate 336 and the sleeve plate 326, and realize the separation between the triangular positioning seat 331 and the upper structure. When the triangular positioning seat 331 is extracted, the telescopic cylinder on the air inlet 327 can be activated to mate with the one-way air inlet valve 334. During the mate, the valve core inside the one-way air inlet valve 334 is pressed, allowing external air to enter the suction nozzle 333 through the air inlet 327 and the one-way air inlet valve 334, thus relieving the negative pressure inside the suction nozzle 333 and simultaneously releasing the adsorption state of the triangular positioning seat 331. After the sleeve plate 326 and the docking plate 336 are simultaneously docked and positioned, the PCB board and aluminum sheet to be drilled can be positioned and constrained by the triangular positioning seat 331. S3, Drilling During this process, after the board is placed, the slot plate 202 can be started to drive the carrier plate 201 to retract to the drilling position. Then, the active guide rail 701 is started to drive the back plate 702 to move laterally, so as to facilitate continuous adjustment of the drilling position. Then, the motor on the active drill chuck 708 is started to drive the bottom drill head 800 to rotate. The telescopic cylinder 704 is driven to descend through the connecting plate 705. When descending, the pressure sleeve 707 first contacts the aluminum sheet, the buffer spring 709 enters the compressed state, and then the drill head 800 immediately follows to perform the drilling operation. The drill head 800 penetrates and completes the drilling operation on the PCB board. The waste generated during drilling can be absorbed and discharged through the dust suction pipe on the pressure sleeve 707. S4, Change drill bit When the drilling operation takes a long time or needs to be replaced, the motor on the flexible clamp 315 can be driven out to push the main loading seat 311 and the auxiliary loading seat 312 to the bottom of the pressure sleeve 707. Since the main loading seat 311 and the auxiliary loading seat 312 use the same drill bit carrier, the purpose is to facilitate the switching of the drill bit between the main loading seat 311 and the auxiliary loading seat 312; The active drill chuck 708 lowers the bottom drill head 800 into the loading sleeve 313. Then, the active drill chuck 708 releases its grip on the drill head 800, and the drill head 800 inserted into the loading sleeve 313 is constrained and positioned by the flexible clamping block 315. Then, the active slide rail 616 is activated, driving the crossbeam 612 to move longitudinally. Simultaneously, the motor on the active gear 615 engages with the gear track 613, causing the guide plate 611 to move laterally. The purpose is to... Switch the mounting cylinder 624 to the position of the drill bit 800 to be replaced. Once reached, activate the telescopic cylinder 621 to drive the mounting cylinder 624 to rise. The mounting cylinder 624 enters the receiving hole in the main loading seat 311. As the mounting cylinder 624 continues to rise, the drill bit will enter the interior, and its bottom end will abut against the flexible push head 626. The flexible push head 626 can then push the drill bit out, and the pushed-out drill bit can enter the active drill chuck 708 for docking. After the replacement is completed, the telescopic cylinder 621 drives the mounting cylinder 624 to retract and detach from the main loading seat 311, and then moves to the previously processed drill bit placement position, and rises into the auxiliary loading seat 312 to enter the storage hole. At this time, there is no need to lift the drill bit again. Just start the motor on the drive gear 623 to rotate, and use the gear ring 627 to drive the mounting cylinder 624 to rotate. The mounting cylinder 624 rotates in the rotating seat 628, and the cleaning brush 625 in the mounting cylinder 624 can clean the impurities on the surface of the drill bit. At the same time, the external negative pressure equipment is started and connected to the negative pressure air inlet 629 through the pipe. The negative pressure air inlet 629 creates a negative pressure effect in the rotating seat 628 and the mounting cylinder 624. At that time, the external air enters the mounting cylinder 624, and the accompanying impurities are absorbed and discharged at the same time. The negative pressure airflow generated in the mounting cylinder 624 also realizes the air cooling operation of the internal drill bit, reducing the temperature of the drill bit after operation. After the equipment has been operating for a certain period of time, personnel can flip the slot plate 202 by using the handle 205 after the equipment stops operating. The slot plate 202 is flipped up on the carrier plate 201 through the movable joint 203, so that personnel can better remove the drilling pad 204 from the slot plate 202 and replace it with a new drilling pad 204.

[0043] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A PCB multi-station drilling apparatus with automatic drill switching, characterized in that, Include: The machine table, the top of the machine table is fixedly installed with a machine shell, the inside of the machine shell is assembled with a drilling unit, the top of the machine shell in the machine is assembled with a bearing assembly, the front of the machine table is assembled with a feeding unit, the top of the feeding unit is assembled with a loading unit, the inside of the loading unit is assembled with a mutually matched nursing unit, the front of the feeding unit is assembled with a load unit; The feeding unit includes a feeding assembly and a transposition assembly; the loading unit includes a loading rack, a drill bit loading assembly, an adjusting assembly, and a positioning component; the front of the machine table is assembled with the transposition assembly, the back of the transposition assembly is actively rotatably installed with the loading rack, the bottom of the loading rack is assembled with the adjusting assembly, the bottom of the adjusting assembly is butt-jointedly assembled with four groups of positioning components, the top of the loading rack is actively slidably installed with the drill bit loading assembly, and the inside of the drill bit loading assembly is top-insertedly placed with a drilling head; The positioning component includes a triangular positioning seat, the bottom of the adjusting assembly is butt-jointedly assembled with four groups of triangular positioning seats, the bottom of the triangular positioning seat is provided with a plurality of mutually communicating suction nozzles, the triangular positioning seat is assembled with a suction disc at the bottom, and the triangular positioning seat is used for suction connection with the bearing assembly; The nursing unit includes a nursing assembly, the inside of the drill bit loading assembly is assembled with the nursing assembly, and the nursing assembly is used for ejecting and maintaining the drilling head in the drill bit loading assembly; The load unit includes a load assembly one, a load assembly two, and a transposition assembly, the front of the transposition assembly is assembled with the feeding assembly, the bottom of the feeding assembly is assembled with the load assembly two, the front side of the load assembly two is assembled with the load assembly one at the bottom of the feeding assembly, and one side of the feeding assembly is fixedly installed with a device for pushing the load assembly one.

2. The automatic switching type PCB multi-station drilling equipment of the drill bit according to claim 1, characterized in that: The bearing assembly includes a load plate, a groove plate, and a movable joint, the top of the machine table is fixedly installed with a longitudinal rail, the top of the longitudinal rail is commonly assembled with a load plate for longitudinal movement, the top of the load plate is butt-jointed with the groove plate, the front of the groove plate and the load plate are commonly movably connected through the movable joint, the top of the groove plate is provided with a drilling backing plate, and both sides of the groove plate are fixedly connected with handles.

3. The automatic switching type PCB multi-station drilling equipment of the drill bit according to claim 2, characterized in that: The drill bit loading assembly includes a main loading seat and a vice loading seat, the inside of the loading rack is slidably connected with a sliding plate, the loading rack is rotatably installed with a threaded lead screw three penetrating through the sliding plate, the top of the sliding plate is fixedly installed with a support frame, the top of the support frame is fixedly installed with the main loading seat and the vice loading seat, the top of the main loading seat and the vice loading seat is uniformly distributed with loading sleeves, the drilling head is inserted and placed in the main loading seat and the vice loading seat through the loading sleeves, the inside of the loading sleeves is fixedly connected with flexible clamping blocks, and the main loading seat and the vice loading seat are limitingly fixed to the drilling head through the flexible clamping blocks.

4. The automatic switching type PCB multi-station drilling equipment of the drill bit according to claim 1, characterized in that: The adjusting assembly comprises two groups of active sliding rails I, a mounting groove, an active screw I, the bottom of the loading frame is fixedly provided with the two groups of active sliding rails I, the active sliding rails I are jointly and actively provided with the mounting groove, the inside of the mounting groove is slidably provided with two groups of guide blocks I, the inside of the mounting groove is actively and rotatably provided with the active screw I penetrating through the guide blocks I, the threads on the active screw I are opposite threads, the bottom of each guide block I is fixedly provided with a mounting bracket and a cover plate, the bottom of the mounting bracket is actively and telescopically provided with a gas connector II and a gas connector I, the gas connector I is used for receiving external air, the gas connector II is used for externally connecting an air suction pipe, the outside of the cover plate is butted and provided with an active bolt I, and the positioning end of the active bolt I extends into the cover plate; The top of the positioning component is butted and provided with a one-way air outlet valve and a butt plate, the one-way air outlet valve is butted and matched with the gas connector II, the suction nozzle is in communication with the one-way air outlet valve and a one-way air inlet valve, the one-way air inlet valve is butted and matched with the gas connector I, the outside of the triangular positioning seat is fixedly provided with the butt plate, and the butt plate is inserted and matched with the cover plate.

5. The automatic switching type PCB multi-station drilling equipment of the drill bit according to claim 1, characterized in that: The transposition assembly comprises an active screw II and a guide block II, the guide block II is slidably mounted on the machine table, the active screw II for driving the guide block II is actively and rotatably mounted on the machine table, and the active screw II penetrates through the guide block II, the top of the guide block II is fixedly provided with a vertical plate, the side surface of the vertical plate is slidably provided with a sliding plate, the top of the sliding plate is fixedly provided with a telescopic cylinder I, the output end of the telescopic cylinder I penetrates through the sliding plate and is connected with the top surface of the vertical plate, the side surface of the sliding plate is fixedly provided with a rotary motor, the output end of the rotary motor is connected with a connecting seat, and the connecting seat is fixedly connected with the loading frame; The loading assembly comprises a support plate, the front surface of the guide block II is fixedly provided with the support plate, the top of the support plate is fixedly provided with an active sliding rail II, the sliding end of the active sliding rail II is fixedly provided with a rotary cylinder, the top of the rotary cylinder is fixedly provided with a mechanical arm, the output end of the mechanical arm is butted and provided with a suction plate, and the mechanical arm acts on the loading component I and the loading component II through the suction plate.

6. The automatic switching type PCB multi-station drilling equipment of the drill bit according to claim 5, characterized in that: The loading component I comprises a loading box, the bottom of the support plate is provided with a butt joint, the top of the loading box is fixedly provided with a butt joint bracket, and the butt joint bracket and the butt joint are combined with each other; The loading assembly further comprises an active bolt II, one side of the support plate is fixedly provided with the active bolt II, and the output end of the active bolt II extends into the butt joint and is used for positioning the butt joint bracket; The inside of the loading box is uniformly provided with loading plates, the loading plates are slidably connected with the loading box, and the inside of each loading plate is placed with a PCB board; The loading component II comprises a new material barrel and a waste material barrel, the bottom of the support plate is fixedly provided with a connecting bracket, the bottom of the connecting bracket is fixedly provided with a moving wheel, the bottom of the connecting bracket is fixedly provided with two groups of supporting plates, the new material barrel and the waste material barrel are respectively placed on the two groups of supporting plates, the new material barrel is placed with aluminum sheets laid on the top surface of the PCB board, and the waste material barrel is used for collecting the aluminum sheets after drilling.

7. The automatic switching type PCB multi-station drilling equipment of the drill bit according to claim 6, characterized in that: Also include push material assembly, push material assembly includes lifting frame, one side of the support plate is fixedly installed with lifting frame, lifting frame side is fixedly installed with driving slide rail three, driving slide rail three is drivingly slidably installed with guide block, guide block is slidably connected with push material plate, push material plate bottom is fixedly installed with rack, rack end is fixedly installed with clamping jaw, clamping jaw is used for clamping butt joint frame, driving gear one is fixedly installed on guide block, and driving gear one is used for engaging and driving rack.

8. The automatic switching type PCB board multi-station drilling equipment of the drill bit according to claim 1, characterized in that: The nursing unit further comprises a driving assembly, which is assembled in the support frame, and the nursing assembly is assembled on the driving assembly. The driving assembly comprises a guide plate, a cross arm and a tooth track, both sides of the guide block one are fixedly installed with driving slide rail four, the driving slide rail four is jointly assembled with the drivingly sliding cross arm, and the cross arm is provided with a cross arm, the guide plate is slidingly installed on the cross arm, the driving gear two is fixedly installed on the guide plate, and the driving gear two is in meshing transmission with the tooth track, and the nursing assembly is assembled on the top of the guide plate.

9. The automatic switching type PCB multi-station drilling equipment of the drill bit according to claim 8, characterized in that: The nursing assembly comprises a telescopic cylinder two, a top plate and an installation cylinder, the telescopic cylinder two is fixedly installed on the top of the guide plate, the output end of the telescopic cylinder two is connected and installed with the top plate, the top of the top plate is fixedly installed with a rotating seat, the rotating seat is rotatably installed with the installation cylinder which is in communication with each other, the inner wall of the installation cylinder is annularly installed with the cleaning brush, the bottom in the installation cylinder is fixedly installed with the soft push head, the outer side of the rotating seat is connected and installed with the negative pressure gas nozzle in communication, the outer side of the installation cylinder is fixedly installed with the gear ring, the driving gear three is assembled on the top plate, and the driving gear three is in meshing transmission with the gear ring.

10. The automatic switching type PCB board multi-station drilling equipment of the drill bit according to claim 1, characterized in that: The drilling unit comprises a driving guide rail and a back plate, the driving guide rail is fixedly installed in the inner part of the casing, and the back plate is drivingly slidably installed on the driving guide rail.

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