A punching device with adjustable aperture size for PCB circuit board processing

Abstract

The utility model relates to the technical field of punching device, concretely relates to a kind of adjustable aperture size's punching device for PCB circuit board processing, including punching equipment, mobile part being set in the top of punching equipment, servo motor being set in the inside of mobile part, the punching mechanism for being used to the drilling of PCB circuit board is set in the output end of servo motor, the punching mechanism includes hollow and can rotate fixed pipe;Two sides of the bottom end of fixed pipe are hinged with punch knife;The inside of fixed pipe is additionally provided with the adjusting mechanism that can drive punch knife to expand or recycle;The outside of fixed pipe is provided with internally threaded sleeve that can rotate and move along the central axis longitudinally, internally threaded sleeve is used to drive adjusting mechanism to move longitudinally.The present application realizes the cutting face size of punch knife to adjust, solves the requirement of different aperture processing that punching device needs to be met by replacing punch drill bit.

Description

Technical Field

[0001] This utility model relates to the field of drilling device technology, specifically to a drilling device with adjustable hole diameter for PCB circuit board processing. Background Technology

[0002] Drilling equipment is a core tool for precise drilling of materials, widely used in PCB manufacturing, metal processing, and medical devices. It achieves this through mechanical drilling or laser drilling technology: mechanical drilling uses a high-speed rotating drill bit with a positioning system to process through holes and blind holes, offering high efficiency but accuracy is affected by drill bit wear; laser drilling utilizes a focused beam to vaporize the material, supporting the processing of micro-holes (<0.1mm) and complex patterns, offering high accuracy but lower efficiency. Key components include the drill bit / laser, motion control system (ensuring hole position accuracy at the ±0.02mm level), and cooling device (preventing the expansion of the heat-affected zone). Modern drilling equipment is evolving towards automation and intelligence, integrating visual recognition and adaptive processing technologies to meet the high-precision and high-efficiency industrial demands.

[0003] Chinese patent CN116887519A discloses a PCB circuit board processing and drilling device. This invention provides a PCB circuit board processing and drilling device that can effectively clamp and fix PCB circuit boards of different sizes to ensure accurate drilling. The device includes an N-shaped worktable and a limiting mechanism. The limiting mechanism on the N-shaped worktable is used to clamp and fix PCB circuit boards of different sizes. Because the clamping plate is slidably connected to the U-shaped movable rod via a crossbar, the clamping plate can slide relative to the U-shaped movable rod, thus effectively clamping and fixing PCB circuit boards of different sizes to prevent displacement or shaking during drilling. This ensures accurate drilling, reduces defective products, and minimizes economic losses.

[0004] The drilling device described in the aforementioned patent requires changing drill bits of different diameters to achieve different hole sizes when drilling holes in PCB circuit boards, making the device inconvenient to use. Therefore, a drilling device with adjustable hole size for PCB circuit board processing is proposed. Utility Model Content

[0005] To address the aforementioned problems, a drilling device with adjustable hole diameter for PCB circuit board processing is provided. An internal threaded sleeve drives a longitudinal adjustment mechanism, allowing the working end of the adjustment mechanism to either extend or retract the bottom end of the drilling cutter to a vertical position during longitudinal movement. This enables adjustment of the cutting surface size of the drilling cutter, eliminating the need to replace the drilling bit to meet the requirements of different hole diameters.

[0006] To address the existing technical problems, this application provides a drilling device with adjustable hole diameter for PCB circuit board processing, including a drilling device, a moving part disposed on the top of the drilling device, a servo motor disposed inside the moving part, and a drilling mechanism disposed at the output end of the servo motor for drilling holes in the PCB circuit board, wherein the drilling mechanism includes a hollow and rotatable fixed tube.

[0007] The bottom of the fixed tube is hinged with a punch on both sides;

[0008] The fixed tube is also equipped with an adjustment mechanism that can drive the punch to expand or retract.

[0009] The fixed tube is provided with an internally threaded sleeve that can rotate and move longitudinally along its central axis. The internally threaded sleeve is used to drive the adjustment mechanism to move longitudinally.

[0010] As one technical solution of this application, a limiting block is provided on the outside of the fixed tube; a limiting groove for limiting the adjustment mechanism is symmetrically opened on the outside of the fixed tube near the lower part of the limiting block.

[0011] The fixed tube is fitted with a retaining spring that can push the adjustment mechanism down along the limiting groove. The retaining spring is located at the bottom of the limiting block.

[0012] As a technical solution of this application, an external thread is provided on the outer wall of the fixed tube near the lower part of the limiting block, and the internal thread sleeve can be threaded with the external thread.

[0013] As one technical solution of this application, the adjustment mechanism includes a limiting slide rod horizontally installed inside the fixed tube. The two ends of the limiting slide rod can slide and cooperate with the limiting groove and can extend out of the fixed tube.

[0014] As one technical solution of this application, a vertical rod is longitudinally fixed at the center of the bottom of the limiting slide rod, and push-pull rods for driving the drilling blades to move away from or towards each other are symmetrically installed inside the bottom end of the vertical rod.

[0015] As one technical solution of this application, the bottom end of the fixed tube is provided with a mounting groove for mounting a punching tool, and the top of the mounting groove is provided with first mounting holes symmetrically on both sides.

[0016] The top of the punch has a second mounting hole, and a pin is horizontally installed inside the second mounting hole. The two ends of the pin are rotatably set inside the first mounting hole.

[0017] As one technical solution of this application, the inner side of the punch is fixed to a mounting base, and the end of the push-pull rod away from the upright is hinged to the mounting base.

[0018] As one technical solution of this application, a support spring is horizontally provided at the bottom of the adjustment mechanism, and the two ends of the support spring are fixed to the inside of the punching tool near the bottom of the mounting base.

[0019] The advantages of this utility model compared to the prior art are:

[0020] This application utilizes an internal threaded sleeve to drive the adjusting mechanism longitudinally. During this longitudinal movement, the working end of the adjusting mechanism can extend or retract the bottom end of the drilling tool to a vertical position. This allows for adjustment of the cutting surface size of the drilling tool, solving the problem of needing to change the drilling bit to meet the requirements of machining different hole diameters. Attached Figure Description

[0021] Figure 1 A three-dimensional structural diagram of a drilling device with adjustable hole diameter for PCB circuit board processing. Figure 1 .

[0022] Figure 2 A three-dimensional structural diagram of a drilling device with adjustable hole diameter for PCB circuit board processing. Figure 2 .

[0023] Figure 3 This is a three-dimensional view of the drilling mechanism in a drilling device with adjustable hole diameter for PCB circuit board processing.

[0024] Figure 4 This is an exploded view of the drilling mechanism in a drilling device with adjustable hole diameter for PCB circuit board processing.

[0025] Figure 5 This is a cross-sectional view of the drilling mechanism in a drilling device with adjustable hole diameter for PCB circuit board processing.

[0026] Figure 6 This is a three-dimensional view of the adjustment mechanism in a drilling device for PCB circuit board processing with adjustable hole diameter.

[0027] Figure 7 yes Figure 5 A magnified structural diagram at point A in the diagram.

[0028] The following are the labels in the diagram: 1. Drilling equipment; 12. Moving part; 13. Servo motor; 2. Drilling mechanism; 20. Fixed tube; 21. Limiting block; 22. Limiting groove; 23. Mounting groove; 24. First mounting hole; 25. External thread; 3. Adjustment mechanism; 31. Limiting slide rod; 32. Upright rod; 33. Push-pull rod; 4. Internal threaded sleeve; 5. Drilling tool; 51. Second mounting hole; 52. Pin; 53. Mounting seat; 55. Support spring; 6. Clamping spring. Detailed Implementation

[0029] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0030] See Figures 1-7 As shown, a drilling device with adjustable hole diameter for PCB circuit board processing includes a drilling device 1, a moving part 12 disposed on the top of the drilling device 1, a servo motor 13 disposed inside the moving part 12, and a drilling mechanism 2 disposed at the output end of the servo motor 13 for drilling holes in the PCB circuit board. The drilling mechanism 2 includes a hollow and rotatable fixed tube 20.

[0031] The bottom ends of the fixed tube 20 are hinged with punching tools 5 on both sides;

[0032] The fixed tube 20 is also equipped with an adjustment mechanism 3 that can drive the punch 5 to expand or retract.

[0033] The fixed tube 20 is provided with an internally threaded sleeve 4 that can rotate and move longitudinally along its central axis. The internally threaded sleeve 4 is used to drive the adjustment mechanism 3 to move longitudinally.

[0034] By rotating the internal threaded sleeve 4, it can move along the central axis of the fixed tube 20. When the internal threaded sleeve 4 moves upward, its top lifts the adjusting mechanism 3 upward, causing it to move upward synchronously. Simultaneously, during its upward movement, the working end of the adjusting mechanism 3 pulls the drilling blades 5, causing the drilling blades 5 hinged on both sides of the bottom of the fixed tube 20 to rotate, thus gradually retracting the bottom of the drilling blades 5 until they are in a vertical position. At this point, the diameter of the hole drilled by the drilling blades 5 on the PCB circuit board decreases. Conversely, when the internal threaded sleeve 4 moves downward along the central axis of the fixed tube 20, the adjusting mechanism 3, located on top of the internal threaded sleeve 4, moves downward as well. At this point, the working end of the adjusting mechanism 3 drives the drilling blades 5 hinged on both sides of the bottom of the fixed tube 20 to rotate in the opposite direction, causing the bottom of both sets of drilling blades 5 to gradually expand outward. This increases the diameter of the hole drilled by the drilling blades 5 on the PCB circuit board, thus allowing the drilling device to adjust the hole size when drilling into the PCB circuit board. Then, the servo motor 13 is started, which drives the fixed tube 20 to rotate through the output end, so that the fixed tube 20 punches holes in the PCB circuit board surface through the punching tool 5 installed at the bottom.

[0035] See Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a limiting block 21 is provided on the outside of the fixed tube 20; a limiting groove 22 for limiting the adjustment mechanism 3 is symmetrically opened on the outside of the fixed tube 20 near the lower part of the limiting block 21.

[0036] The fixed tube 20 is externally fitted with a retaining spring 6 that can push the adjustment mechanism 3 down along the limiting groove 22. The retaining spring 6 is located at the bottom of the limiting block 21.

[0037] By installing a retaining spring 6 outside the fixed tube 20, the elastic potential energy of the retaining spring 6 is always applied to the top of the adjusting mechanism 3, thereby ensuring that the bottom of the adjusting mechanism 3 is always in contact with the top of the internal threaded sleeve 4. This effectively prevents the adjusting mechanism 3 from disengaging from the internal threaded sleeve 4.

[0038] See Figure 4 As shown, an external thread 25 is provided on the outer wall of the fixed tube 20 near the lower part of the limiting block 21, and the internal thread sleeve 4 can be threadedly engaged with the external thread 25.

[0039] An external thread 25 is formed on the outer wall of the fixed tube 20 near the lower part of the limiting block 21, which is threaded to the internal threaded sleeve 4. When the internal threaded sleeve 4 is rotated, the internal threaded sleeve 4 can move up or down along the path of the external thread 25.

[0040] See Figure 4 , Figure 5 and Figure 7 As shown, the adjustment mechanism 3 includes a limiting slide rod 31 horizontally installed inside the fixed tube 20. The two ends of the limiting slide rod 31 can slide and cooperate with the limiting groove 22 and can extend out of the fixed tube 20.

[0041] By installing both ends of the limiting slide rod 31 inside the limiting groove 22, the push-pull rod 33 can slide within the limiting groove 22 when it moves upward, effectively ensuring the stability of the limiting slide rod 31 during movement and preventing displacement of the adjusting mechanism 3.

[0042] See Figure 6 and Figure 7 As shown, a vertical rod 32 is longitudinally fixed at the center of the bottom of the limiting slide rod 31, and a push-pull rod 33 for driving the punching knife 5 to unfold or retract is symmetrically installed at the bottom end of the vertical rod 32.

[0043] When the limiting slide bar 31 moves upward, it drives the top of the push-pull rod 33 to move upward or downward via the upright rod 32. When the top or bottom of the push-pull rod 33 moves upward or downward, the bottom of the push-pull rod 33 will cause the punching tool 5 to unfold or retract to a vertical state.

[0044] See Figure 4 and Figure 7 As shown, the bottom end of the fixed tube 20 is provided with a mounting groove 23 for mounting the punch 5, and the top of the mounting groove 23 is provided with first mounting holes 24 symmetrically on both sides.

[0045] The top of the punch 5 has a second mounting hole 51, and a pin 52 is horizontally installed inside the second mounting hole 51. The two ends of the pin 52 are rotatably set inside the first mounting hole 24.

[0046] A second mounting hole 51 is made at the tip of the punch 5, and then the pin 52 is horizontally installed inside the second mounting hole 51. Then, both ends of the pin 52 are installed inside the first mounting holes 24 made on both sides of the mounting groove 23. This allows the punch 5 to rotate along the central axis of the pin 52.

[0047] See Figure 6 and Figure 7 As shown, the inner side of the punch 5 is fixed to the mounting base 53, and the end of the push-pull rod 33 away from the upright 32 is hinged to the mounting base 53.

[0048] To ensure that the push-pull rod 33 can effectively drive the punch 5, a mounting base 53 is provided inside the punch 5, and the bottom end of the push-pull rod 33 is hinged to the mounting base 53, so that the push-pull rod 33 can drive the punch 5 to expand outward or retract through the mounting base 53.

[0049] See Figure 6 and Figure 7 As shown, a support spring 55 is horizontally arranged at the bottom of the adjustment mechanism 3, and the two ends of the support spring 55 are fixed to the inside of the punching tool 5 near the bottom of the mounting base 53.

[0050] To ensure the stability of the punch 5, a support spring 55 is horizontally installed at the bottom of the adjusting mechanism 3, and then both ends of the support spring 55 are fixed to the punch 5. This allows the support spring 55 to push the punch 5 installed on both sides of the fixed tube 20, effectively reducing the risk of the punch 5 swinging during punching.

[0051] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A drilling device for PCB circuit board processing with adjustable hole diameter, comprising a drilling device (1), a moving part (12) disposed on the top of the drilling device (1), a servo motor (13) disposed inside the moving part (12), and a drilling mechanism (2) disposed at the output end of the servo motor (13) for drilling holes in the PCB circuit board, characterized in that, The punching mechanism (2) includes a hollow and rotatable fixed tube (20); The bottom ends of the fixed tube (20) are hinged with punching tools (5); The fixed tube (20) is also equipped with an adjustment mechanism (3) that can drive the punch (5) to expand or retract. The fixed tube (20) is provided with an internally threaded sleeve (4) that can rotate and move longitudinally along its central axis. The internally threaded sleeve (4) is used to drive the adjustment mechanism (3) to move longitudinally.

2. The drilling device with adjustable hole diameter for PCB circuit board processing according to claim 1, characterized in that, The fixed tube (20) is provided with a limiting block (21) on the outside; a limiting groove (22) for limiting the adjustment mechanism (3) is symmetrically opened on the outside of the fixed tube (20) near the lower part of the limiting block (21); The fixed tube (20) is fitted with a retaining spring (6) that can push the adjustment mechanism (3) down along the limiting groove (22). The retaining spring (6) is located at the bottom of the limiting block (21).

3. The drilling device with adjustable hole diameter for PCB circuit board processing according to claim 2, characterized in that, An external thread (25) is provided on the outer wall of the fixed tube (20) near the lower part of the limiting block (21), and the internal thread sleeve (4) can be threadedly engaged with the external thread (25).

4. The drilling device with adjustable hole diameter for PCB circuit board processing according to claim 2, characterized in that, The adjustment mechanism (3) includes a limiting slide rod (31) horizontally installed inside the fixed tube (20). The two ends of the limiting slide rod (31) can slide and cooperate with the limiting groove (22) and can extend out of the fixed tube (20).

5. A drilling device for PCB circuit board processing with adjustable hole diameter according to claim 4, characterized in that, A vertical rod (32) is longitudinally fixed at the center of the bottom of the limiting slide rod (31), and push-pull rods (33) for driving the punching cutter (5) to move away from or towards each other are symmetrically installed inside the bottom end of the vertical rod (32).

6. The drilling device with adjustable hole diameter for PCB circuit board processing according to claim 1, characterized in that, The bottom end of the fixed tube (20) is provided with a mounting groove (23) for installing a punch (5), and the top of the mounting groove (23) is provided with first mounting holes (24) symmetrically on both sides. The top of the punch (5) is provided with a second mounting hole (51), and a pin (52) is horizontally installed inside the second mounting hole (51). The two ends of the pin (52) are rotatably set inside the first mounting hole (24).

7. A drilling device for PCB circuit board processing with adjustable hole diameter according to claim 5, characterized in that, The inner side of the punch (5) is fixed to the mounting base (53), and the end of the push-pull rod (33) away from the upright (32) is hinged to the mounting base (53).

8. A drilling device for PCB circuit board processing with adjustable hole diameter according to claim 7, characterized in that, The bottom of the adjustment mechanism (3) is horizontally provided with a support spring (55), and the two ends of the support spring (55) are fixed to the inside of the punch (5) near the bottom of the mounting base (53).

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