High-precision micropore machining device for circuit board machining

Abstract

The invention relates to the technical field of punching devices, in particular to a high-precision micropore machining device for circuit board machining, which comprises a workbench, a clamping assembly, a punching assembly and a blanking assembly, and is characterized in that the clamping assembly adopts a structure of a second propeller, a push plate and a clamping plate which are bilaterally symmetrical; the two groups of side-opened C-shaped clamping plates are synchronously driven to move oppositely, and force is uniformly applied from two sides of the circuit board, so that the problems of edge deformation and middle bulge caused by a single pressing plate are avoided; the clamping plates are connected with the push plate through bolts, so that the clamping plates with different sizes can be replaced as required, circuit boards with various specifications are compatible, great debugging is not needed, and the remodeling efficiency is improved; two sets of sliding blocks of the punching assembly are in threaded connection with a forward and reverse threaded rod, when a motor drives the forward and reverse threaded rod to rotate, the two sets of sliding blocks synchronously move in the same direction or in the opposite directions, and punchers below are driven to precisely adjust the distance. The distance between the sliding blocks can be rapidly set according to the requirement for symmetrical punching of the edge of the circuit board, and double-hole synchronous machining is achieved.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment technology, specifically a high-precision micro-hole processing device for circuit board processing. Background Technology

[0002] With the rapid development of industries such as 5G communication, new energy vehicles, and artificial intelligence, printed circuit boards (PCBs) are iterating towards high density, miniaturization, and thinness. Micro-hole processing (hole diameter ≤ 50μm) is the core process for interlayer conduction of PCBs, and its processing accuracy, efficiency, and stability directly determine the signal transmission efficiency and reliability of the product.

[0003] The edges of the circuit board often need to be symmetrically drilled to ensure that the circuit board is installed and fixed to the mounting equipment;

[0004] Traditional circuit board clamping often uses a single pressure plate or simple clamps, resulting in uneven clamping force distribution, which can easily lead to deformation of the circuit board edges and bulges in the middle. In addition, it lacks a precise guiding structure, and the board is easily displaced by the impact force of drilling during processing. Furthermore, the clamps have poor adaptability and are difficult to be compatible with circuit boards of different sizes. When changing specifications, readjustment is required, which affects production efficiency. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a high-precision micro-hole processing device for circuit board manufacturing.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a high-precision micro-hole processing device for circuit board processing, comprising a worktable, a clamping assembly, a drilling assembly, and a blanking assembly. Support legs are provided at the four corners below the worktable. The clamping assembly includes a first pusher, a slide rail, a support plate, a side plate, a second pusher, a push plate, and a clamping plate. Slide rails are symmetrically arranged on the left and right sides above the worktable. The support plate is slidably connected to the slide rails on the left and right sides below. A first pusher for pushing the support plate is also provided on the worktable. A blanking hole is also provided on the support plate. Side plates are symmetrically arranged on the left and right sides above the support plate. The output end of the corresponding second pusher passes through the side plate and is connected to the push plate. Two sets of... A clamping plate is also provided on the side adjacent to the push plate. The drilling assembly includes a back plate, a top plate, a lifter, a lifting plate, a sliding frame, a motor, positive and negative threaded rods, a slider, and a drill. A back plate is provided on the back side of the worktable, and a top plate is provided on the top front of the back plate. The output end of the lifter passes through the top plate and is connected to the lifting plate. A sliding frame is provided below the lifting plate, and a sliding groove is provided below the sliding frame. Positive and negative threaded rods are rotatably arranged in the sliding groove. The output end of the motor passes through the sliding frame and is connected to the positive and negative threaded rods. Two sets of symmetrically arranged sliders are also provided in the sliding groove. The sliders are threadedly connected to the positive and negative threaded rods. A drill is also provided below the sliders. The output end of the first pusher passes through the back plate.

[0009] Preferably, the front and rear sides of the clamping plate are connected to the push plate by bolts, the clamping plate is side-opening, and the side openings of the two sets of clamping plates are located on adjacent sides.

[0010] Preferably, the push plate is further provided with a first guide rod that passes through the side plate.

[0011] Preferably, the lifting plate is further provided with a second guide rod that penetrates the top plate.

[0012] Preferably, the workbench is also provided with reinforcing ribs that are connected to the back plate.

[0013] Preferably, a support beam is also provided in the middle of the feeding hole.

[0014] Preferably, the workbench is also provided with a hollow hole, which is located between the two sets of side plates. The material discharge hole is adapted to the hollow hole. A material collection hood adapted to the hollow hole is also provided below the workbench. A material transfer pipe is also provided below the material collection hood.

[0015] Preferably, the transfer tube is arranged at an angle, and a support connected to the transfer tube is also provided below the workbench.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a high-precision micro-hole processing device for circuit board processing, which has the following beneficial effects:

[0018] This high-precision micro-hole processing device for circuit board manufacturing features a clamping assembly with a symmetrical second pusher, push plate, and clamping plate structure. It synchronously drives two sets of side-opening C-shaped clamping plates to move towards each other, applying force evenly from both sides of the circuit board and avoiding edge deformation and central protrusion caused by a single pressure plate. The clamping plates are connected to the push plate by bolts, and different sizes of clamping plates can be replaced as needed, making it compatible with various specifications of circuit boards without extensive adjustments and improving changeover efficiency.

[0019] The two sets of sliders of the punching assembly are threadedly connected to the positive and negative toothed rods. When the motor drives the positive and negative toothed rods to rotate, the two sets of sliders move synchronously towards or away from each other, driving the punch below to precisely adjust the spacing. For the requirement of symmetrical punching on the edge of the circuit board, the slider spacing can be quickly set to achieve synchronous processing of two holes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 This is a bottom view of the structure of the present invention;

[0022] Figure 3 This is a rear view schematic diagram of the structure of the present invention;

[0023] Figure 4 This is a partial bottom view of the structure of the present invention;

[0024] Figure 5 The structure of this invention Figure 4 Enlarged view of a portion of the image;

[0025] Figure 6 This is a partial front view schematic diagram of the structure of the present invention.

[0026] In the diagram: 1. Workbench; 2. Support leg; 3. First pusher; 4. Slide rail; 5. Support plate; 6. Side plate; 7. Second pusher; 8. Push plate; 9. Clamping plate; 10. Back plate; 11. Top plate; 12. Lifter; 13. Lifting plate; 14. Slide frame; 15. Motor; 16. Positive and negative toothed rods; 17. Slider; 18. Drilling tool; 19. Bolt; 20. First guide rod; 21. Second guide rod; 22. Reinforcing rib; 23. Support beam; 24. Material collection hood; 25. Transfer pipe; 26. Bracket. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-6 A high-precision micro-hole processing device for circuit board processing includes a worktable 1, a clamping assembly, a drilling assembly, and a blanking assembly. Support legs 2 are provided at the four corners of the worktable 1. The clamping assembly includes a first pusher 3, a slide rail 4, a support plate 5, a side plate 6, a second pusher 7, a push plate 8, and a clamping plate 9. Slide rails 4 are symmetrically arranged on the left and right sides above the worktable 1. The support plate 5 is slidably connected to the slide rails 4 on its left and right sides below. The worktable 1 also has a first pusher 3 for pushing the support plate 5. The support plate 5 also has blanking holes. Side plates 6 are symmetrically arranged on the left and right sides above the support plate 5. The output end of the corresponding second pusher 7 passes through the side plate 6 and connects to the push plate 8. Clamping plates 9 are also provided on the adjacent sides of the two sets of push plates 8. The drilling assembly includes a back plate 1. 0. Top plate 11, lifting device 12, lifting plate 13, sliding frame 14, motor 15, positive and negative threaded rods 16, slider 17, and punch 18. The back plate 10 is provided on the back side of the workbench 1, and the top plate 11 is provided on the top front of the back plate 10. The output end of the lifting device 12 passes through the top plate 11 and is connected to the lifting plate 13. The sliding frame 14 is provided below the lifting plate 13. The sliding groove is provided below the sliding frame 14. The positive and negative threaded rods 16 are rotatably arranged in the sliding groove. The output end of the motor 15 passes through the sliding frame 14 and is connected to the positive and negative threaded rods 16. Two sets of symmetrically arranged sliders 17 are also provided in the sliding groove. The sliders 17 are threadedly connected to the positive and negative threaded rods 16. The punch 18 is also provided below the sliders 17. The output end of the first pusher 3 passes through the back plate 10.

[0029] The workbench 1 provides a unified mounting platform for all components, and the four support legs 2 at the bottom ensure that the equipment is placed stably, avoiding vibration during drilling operations that could affect positioning accuracy; the support legs 2 can be adjusted in height according to the ground conditions to ensure that the workbench 1 is level, laying the foundation for subsequent precise processing;

[0030] The back plate 10 on the back side of the workbench 1 and the top plate 11 form a portal rigid frame, providing stable support for the drilling assembly; the reinforcing rib 22 connects the workbench 1 and the back plate 10, further enhancing the frame's vibration resistance, reducing structural deformation during high-speed drilling, and ensuring processing accuracy.

[0031] Place the circuit board on the support plate 5, activate the second pushers 7 on the left and right sides, and simultaneously drive the push plate 8 to move inward, causing the two sets of side-opening C-shaped clamps 9 to move towards each other, and apply force evenly to clamp the circuit board from both sides; the clamps 9 are detachably connected to the push plate 8 by bolts 19, and the corresponding specifications of the clamps 9 can be replaced according to the size of the circuit board, without the need to readjust the overall structure of the fixture, which greatly improves the efficiency of changing the circuit board.

[0032] The first guide rod 20 on the push plate 8 passes through the side plate 6, restricting the push plate 8 to move only in the horizontal direction, ensuring that the two sets of clamping plates 9 always remain parallel, and preventing the circuit board from tilting when clamped; the support plate 5 is slidably connected to the worktable 1 through the lower slide rail 4, and with the smooth drive of the first pusher 3, the front and rear processing positions of the circuit board can be precisely adjusted, and the guiding effect of the slide rail 4 can resist the impact force of drilling and prevent the board from shifting during processing.

[0033] A support beam 23 is set in the middle of the feeding hole on the support plate 5. Without affecting the falling of waste material, it provides effective support for the middle area of ​​the circuit board, avoids the thin circuit board from bending due to its own weight or drilling pressure, and further ensures the processing stability.

[0034] The start motor 15 drives the positive and negative toothed rods 16 inside the slide frame 14 to rotate. Since the two sets of sliders 17 are threadedly connected to the positive and negative toothed rods 16, and the threads at both ends of the positive and negative toothed rods 16 turn in opposite directions, the two sets of sliders 17 will move synchronously towards or away from each other during rotation, driving the punch 18 below to precisely adjust the spacing. According to the spacing requirements of symmetrical punching on the circuit board, the positioning of the punch 18 can be completed by setting the rotation angle of the motor 15, without the need for manual measurement and calibration.

[0035] The lifting device 12 drives the lifting plate 13 to rise and fall vertically. The second guide rod 21 on the lifting plate 13 passes through the top plate 11, limiting the radial offset of the lifting plate 13 and ensuring that the drilling device 18 feeds smoothly without tilting. By controlling the lifting height of the lifting device 12, it can be adapted to the micro-hole processing of circuit boards of different thicknesses, ensuring consistent drilling depth and uniform hole diameter.

[0036] Two sets of punches move and rise synchronously, allowing for the simultaneous processing of symmetrical holes on the edge of the circuit board. This eliminates the need for multiple positioning steps, significantly improving processing efficiency and avoiding deviations in hole symmetry caused by multiple processing steps.

[0037] Resin debris and metal dust generated during the drilling process fall into the corresponding hollow hole of the worktable 1 through the discharge hole of the support plate 5 under the action of gravity; the material collection cover 24 receives the waste material falling from the hollow hole and avoids the waste material splashing and spreading.

[0038] The transfer pipe 25 below the collection hood 24 is arranged at an angle, using gravity to allow the waste to flow naturally and to be discharged to the collection container without additional power. The transfer pipe 25 is fixed by the bracket 26 to ensure a stable tilt angle, avoid waste blockage, and achieve continuous waste removal without interrupting the processing flow.

[0039] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0040] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0041] 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.

Claims

1. A high-precision micro-hole processing device for processing a circuit board, comprising a workbench (1), a clamping assembly, a punching assembly and a blanking assembly, characterized in that, The workbench (1) is provided with supporting legs (2) at four corners below, the clamping assembly comprises a first pusher (3), sliding rails (4), a supporting plate (5), side plates (6), a second pusher (7), a push plate (8) and a clamping plate (9), the workbench (1) is provided with sliding rails (4) symmetrically on the left and right sides above, the supporting plate (5) is slidably connected with the sliding rails (4) on the left and right sides below, the workbench (1) is further provided with a first pusher (3) for pushing the supporting plate (5), the supporting plate (5) is further provided with a blanking hole, the supporting plate (5) is provided with side plates (6) symmetrically on the left and right sides above, corresponding second pushers (7) pass through the side plates (6) and are connected with the push plates (8) at output ends, the sides of the two groups of push plates (8) are further provided with clamping plates (9), the punching assembly comprises a back plate (10), a top plate (11), a lifter (12), a lifting plate (13), a sliding frame (14), a motor (15), a reversible toothed rod (16), a sliding block (17) and a punch (18), the workbench (1) is provided with a back plate (10) on the back side, the back plate (10) is provided with a top plate (11) on the front top, the lifter (12) passes through the top plate (11) and is connected with the lifting plate (13) at the output end, the lifting plate (13) is provided with a sliding frame (14) below, the sliding frame (14) is provided with a sliding groove below, the reversible toothed rod (16) is rotatably arranged in the sliding groove, the motor (15) passes through the sliding frame (14) and is connected with the reversible toothed rod (16) at the output end, the sliding groove is further provided with two groups of symmetrically arranged sliding blocks (17), the sliding blocks (17) are threadedly connected with the reversible toothed rod (16), the sliding blocks (17) are further provided with punches (18) below, and the first pusher (3) passes through the back plate (10) at the output end.

2. The high-precision micro-hole processing apparatus for processing a circuit board according to claim 1, characterized by The clamping plates (9) are connected with the push plates (8) through bolts (19) on the front and back sides, the clamping plates (9) are of a side opening, and the side openings of the two groups of clamping plates (9) are arranged on the adjacent sides.

3. The high-precision micro-hole processing apparatus for processing a circuit board according to claim 2, characterized by The push plates (8) are further provided with first guide rods (20) penetrating through the side plates (6).

4. The high-precision micro-hole processing apparatus for processing a circuit board according to claim 3, characterized by The lifting plate (13) is further provided with a second guide rod (21) penetrating through the top plate (11).

5. The high-precision micro-hole processing apparatus for processing a circuit board according to claim 4, characterized by The workbench (1) is further provided with a reinforcing rib (22) connected with the back plate (10).

6. The high-precision micro-hole processing apparatus for processing a circuit board according to claim 5, wherein The blanking hole is further provided with a supporting beam (23) in the middle.

7. The high-precision micro-hole processing apparatus for processing a circuit board according to claim 6, wherein The workbench (1) is further provided with a hollow hole, the hollow hole is arranged between the two groups of side plates (6), the blanking hole is matched with the hollow hole, the workbench (1) is further provided with a material collecting cover (24) matched with the hollow hole below, and the material collecting cover (24) is further provided with a material rotating pipe (25) below.

8. The high-precision micro-hole processing apparatus for processing a circuit board according to claim 7, characterized by The material rotating pipe (25) is arranged obliquely, and the workbench (1) is further provided with a support (26) connected with the material rotating pipe (25) below.

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