A positioning device for drilling holes in circuit boards

Abstract

This utility model relates to the field of circuit board drilling technology and discloses a positioning device for circuit board drilling, including a working plate, a support plate fixedly mounted on one side of the working plate, a fixing block fixedly mounted on one side of the support plate, an eccentric wheel rotatably mounted on one end of the support plate, a sliding rod slidably mounted inside the fixing block, a spring sleeved on the outside of the sliding rod, a motor fixedly mounted at the bottom of the sliding rod, a drill bit fixedly connected to the output end of the motor, and two fixing plates fixedly mounted on the top of the working plate. When drilling a square circuit board, a sliding support plate is placed between the two support plates according to the size of the square circuit board, and then the support plate is fixed by a limiting structure. The hand-tightening bolt is rotated to fix the clamping plate to the square circuit board. Then the motor is started, the eccentric wheel is rotated to press the sliding rod downward, thereby causing the drill bit to drill a hole in the square circuit board.

Description

Technical Field

[0001] This utility model relates to the field of circuit board drilling technology, specifically a positioning device for drilling circuit boards. Background Technology

[0002] Circuit board drilling is a crucial step in the electronics manufacturing process, mainly involving drilling precise holes in printed circuit boards. These holes not only provide physical support for component mounting but also achieve electrical interconnection between different layers through processes such as copper plating. The drilling accuracy and the smoothness of the hole walls directly affect the electrical performance and signal integrity of the PCB. However, positioning the circuit board during drilling is cumbersome and inconvenient, and the circuit board is prone to displacement during drilling. Therefore, a positioning device for circuit board drilling is proposed. Utility Model Content

[0003] The purpose of this utility model is to provide a positioning device for drilling circuit boards, so as to solve the problems mentioned in the background art, where positioning the circuit board during drilling is cumbersome, inconvenient, and the circuit board is prone to displacement.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a positioning device for drilling circuit boards, comprising a working plate, a support plate fixedly disposed on one side of the working plate, a fixing block fixedly disposed on one side of the support plate, an eccentric wheel rotatably disposed at one end of the support plate, a sliding rod slidably disposed inside the fixing block, a spring sleeved on the outer side of the sliding rod, a motor fixedly disposed at the bottom of the sliding rod, a drill bit fixedly connected to the output end of the motor, two fixing plates fixedly disposed on the top of the working plate, two sliders slidably disposed on the outer side of each of the two fixing plates, a limit structure disposed between the two sliders at the same level, a support plate fixedly connected between the tops of the two sliders at the same level, a hand-tightening bolt threadedly connected to one side of the support plate, and a clamping plate fixedly disposed at one end of the hand-tightening bolt.

[0005] Preferably, the limiting structure includes a pull rod that slides through two sliders. Two pressure plates are fixedly disposed on the outer side of the sliders, with each pressure plate located on one side of the slider. A limiting plate is fixedly disposed on the outer side of the pull rod. Two arc-shaped protrusions are fixedly disposed on one side of the limiting plate, with one of the arc-shaped protrusions abutting against the inside of the working plate. A rotating plate is fixedly disposed at one end of the pull rod.

[0006] Preferably, the slider has a U-shaped cross-section and is slidably mounted on the outside of the fixed plate.

[0007] Preferably, a threaded hole is provided on one side of the tray, and the size of the hand-tightening bolt is adapted to the threaded hole.

[0008] Preferably, the fixing plate has a through groove inside, and the pull rod slides through the through hole.

[0009] Preferably, a limiting groove is provided on one side of the top of the working plate, and the arc-shaped convex plate is fastened inside the limiting groove.

[0010] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0011] This utility model, by setting up a fixed plate, a slider, a support plate, and a clamping plate, allows for drilling holes in square circuit boards. The sliding support plate is placed between two support plates according to the size of the circuit board. The rotating plate is rotated so that the arc-shaped protrusion on one side of the limiting plate comes into close contact with the working plate, limiting the support plate and facilitating adjustment. Then, the hand-tightening bolt is rotated to start the motor, and the rotating eccentric wheel presses the sliding rod downward, thereby causing the drill bit to drill holes in the circuit board. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a side view of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the connection structure between the working plate and the pallet of this utility model;

[0016] Figure 4 For the present utility model Figure 3 A magnified structural diagram of A in the diagram.

[0017] Explanation of reference numerals in the attached diagram: 1. Working plate; 2. Support plate; 3. Fixing block; 4. Eccentric wheel; 5. Sliding rod; 6. Spring; 7. Motor; 8. Drill bit; 9. Fixing plate; 10. Slider; 11. Pull rod; 12. Pressure plate; 13. Limiting plate; 14. Arc-shaped convex plate; 15. Rotating plate; 16. Support plate; 17. Hand-tightening bolt; 18. Clamping plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0020] Example

[0021] In the existing technology, the positioning operation of the circuit board is cumbersome and inconvenient when drilling holes in the circuit board, and the circuit board is prone to displacement during drilling.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a positioning device for drilling circuit boards, including a working plate 1, a support plate 2 fixedly mounted on one side of the working plate 1, a fixing block 3 fixedly mounted on one side of the support plate 2, an eccentric wheel 4 rotatably mounted on one end of the support plate 2, a sliding rod 5 slidably mounted inside the fixing block 3, a spring 6 sleeved on the outside of the sliding rod 5, a motor 7 fixedly mounted at the bottom of the sliding rod 5, a drill bit 8 fixedly connected to the output end of the motor 7, two fixing plates 9 fixedly mounted on the top of the working plate 1, and two sliders 10 slidably mounted on the outside of each of the two fixing plates 9, with the two sliders 10 on the same horizontal level... A limiting structure is provided between the two sliders 10 at the same level. A support plate 16 is fixedly connected between the tops of the two sliders 10. A hand-tightening bolt 17 is threadedly connected to one side of the support plate 16. A clamping plate 18 is fixedly provided at one end of the hand-tightening bolt 17. When drilling a square circuit board, the support plate 16 is slid according to the size of the square circuit board and placed between the two support plates 16. Then, the support plate 16 is limited and fixed by the limiting structure. The hand-tightening bolt 17 is rotated to fix the clamping plate 18 to the square circuit board. Then, the motor 7 is started and the eccentric wheel 4 is rotated to press the sliding rod 5 downward, so that the drill bit 8 drills a hole in the square circuit board.

[0023] The limiting structure includes a pull rod 11 that slides through two sliders 10. Two pressure plates 12 are fixedly installed on the outer side of the sliders 10, with each pressure plate 12 located on one side of the slider 10. A limiting plate 13 is fixedly installed on the outer side of the pull rod 11. Two arc-shaped protrusions 14 are fixedly installed on one side of the limiting plate 13, with one of the arc-shaped protrusions 14 abutting against the inside of the working plate 1. A rotating plate 15 is fixedly installed at one end of the pull rod 11. After the slide plate 16 is moved by the sliders 10, the rotating plate 15 is rotated, so that the arc-shaped protrusion 14 on one side of the limiting plate 13 abuts tightly against the working plate 1, thereby limiting the sliders 10 by the pressure plates 12 and limiting the slide plate 16 by the sliders 10, which facilitates adjustment.

[0024] The cross section of the slider 10 is machined into a U-shape. The slider 10 is slidably installed on the outside of the fixed plate 9, and the support plate 16 is slidably connected to the fixed plate 9 through the slider 10.

[0025] A threaded hole is provided on one side of the support plate 16. The size of the hand-tightening bolt 17 is adapted to the threaded hole. The clamping plate 18 is pushed by the hand-tightening bolt 17 to limit and fix the circuit board.

[0026] The fixed plate 9 has a through groove inside, and the pull rod 11 slides through the through hole to limit the slider 10.

[0027] A limiting groove is provided on one side of the top of the working plate 1, and an arc-shaped protrusion 14 is fastened inside the limiting groove to limit the support plate 16.

[0028] The working principle or structural principle is as follows: When drilling a square circuit board, the sliding support plate 16 is placed between two support plates 16 according to the size of the square circuit board. After the support plate 16 is moved by the slider 10, the rotating plate 15 is rotated. The rotating plate 15 will drive the pull rod 11 to rotate, so that the arc-shaped protrusion 14 on one side of the limiting plate 13 is in close contact with the working plate 1, so that the pressure plate 12 limits the slider 10. The slider 10 limits the support plate 16, which is convenient for adjustment. Then, the hand-tightening bolt 17 is rotated to fix the clamping plate 18 between the two support plates 16. Then, the motor 7 is started, and the eccentric wheel 4 is rotated to press the sliding rod 5 downward, so that the drill bit 8 drills a hole in the square circuit board.

[0029] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A positioning device for drilling a circuit board, comprising a work board (1), characterized in that: A support plate (2) is fixedly installed on one side of the working plate (1), and a fixing block (3) is fixedly installed on one side of the support plate (2). An eccentric wheel (4) is rotatably installed at one end of the support plate (2). A sliding rod (5) is slidably installed inside the fixing block (3). A spring (6) is sleeved on the outside of the sliding rod (5). A motor (7) is fixedly installed at the bottom of the sliding rod (5). A drill bit (8) is fixedly connected to the output end of the motor (7). Two fixing plates (9) are fixedly installed on the top of the working plate (1). Two sliders (10) are slidably installed on the outside of the two fixing plates (9). A limit structure is provided between the two sliders (10) at the same level. A support plate (16) is fixedly connected between the tops of the two sliders (10) at the same level. A hand-tightening bolt (17) is threadedly connected to one side of the support plate (16). A clamping plate (18) is fixedly installed at one end of the hand-tightening bolt (17).

2. The positioning device for drilling a circuit board according to claim 1, wherein: The limiting structure includes a pull rod (11), which slides through two sliders (10). Two pressure plates (12) are fixedly arranged on the outside of the sliders (10) and the pressure plates (12) are respectively located on one side of the sliders (10). A limiting plate (13) is fixedly arranged on the outside of the pull rod (11). Two arc-shaped protrusions (14) are fixedly arranged on one side of the limiting plate (13). One of the arc-shaped protrusions (14) abuts against the inside of the working plate (1). A rotating plate (15) is fixedly arranged at one end of the pull rod (11).

3. The positioning device for drilling a circuit board according to claim 1, wherein: The cross section of the slider (10) is machined into a U-shape, and the slider (10) is slidably mounted on the outside of the fixed plate (9).

4. The positioning device for drilling a circuit board according to claim 1, wherein: The tray (16) has a threaded hole on one side, and the size of the hand-tightening bolt (17) is adapted to the threaded hole.

5. The positioning device for drilling a circuit board according to claim 2, wherein: The fixed plate (9) has a through groove inside, and the pull rod (11) slides through the through hole.

6. The positioning device for drilling a circuit board according to claim 2, wherein: A limiting groove is provided on one side of the top of the working plate (1), and the arc-shaped protrusion (14) is fastened inside the limiting groove.

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