A multilayer wiring board drilling positioning structure

Abstract

The utility model discloses a multilayer circuit board drilling positioning structure, including support column and first rotary arm, the top end sliding installation of support column has first rotary arm, the top end sliding installation of first rotary arm has second rotary arm, the outside of second rotary arm is provided with drill bit, the outside symmetry of drill bit is provided with track. The utility model not only has realized the multistage rotation adjustment position of drilling positioning structure convenient, has increased the drilling range of drilling positioning structure, has facilitated the drilling of moving in turn conveniently, has shortened the time of feeding and discharging, and has facilitated the adjustable clamping fixing of circuit board conveniently, has facilitated the multistage rotation adjustment position of circuit board, has improved the efficiency of drilling positioning structure drilling of moving in turn.

Description

Technical Field

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

[0002] Multilayer circuit boards are circuit boards with three or more conductive layers. These conductive layers are isolated from each other by insulating materials (usually a combination of epoxy resin and glass fiber) and are electrically connected between layers by drilling and metallized vias. This design greatly improves the complexity and integration of the circuit, allowing more electronic components to be arranged in a limited space, thus meeting the requirements of high performance and high reliability.

[0003] For example, the drilling positioning structure for a multilayer circuit board disclosed in the authorization announcement number CN207924539U includes: a first positioning frame, which is a rectangular frame structure, and its lower end face is used to fit with the multilayer circuit board to be drilled; a second positioning frame, which is a rectangular frame structure with the same vertical projection outline as the first positioning frame, and its two sides in the length direction are provided with sliding grooves extending to both ends in the width direction; a first sliding rod and a second sliding rod respectively straddling the first positioning frame and the second positioning frame and having a plurality of positioning holes.

[0004] Although this solution allows operators to simply attach the first positioning frame to the circuit board to be drilled, and then slide the first and second sliding rods to align the first positioning hole on the first positioning rod and the second positioning hole on the second positioning rod with the expected drilling positions on the multilayer circuit board, the drilling can then be performed using the drill bit of the circuit board drilling equipment. If the drill bit is misaligned with the first or second positioning hole, the drill bit will first come into contact with the first or second positioning rod when it descends to drill, causing the first or second positioning rod to press down on the second positioning frame due to the force. This causes the pressing rod connected to the second positioning frame to press the micro-sliding end of the micro switch, making the wires between the power supply and the LED electrically connected, causing the LED to light up for indication. Since the cost of the first and second connecting rods is cheaper than the circuit board itself, only the damaged first or second connecting rod needs to be replaced. Because the first and second positioning frames are connected by springs, they will separate and reset after the drill bit rises. This solution is convenient to position, low in cost, and provides real-time sensing feedback.

[0005] However, this does not solve the problem that existing drilling positioning structures are generally not conducive to convenient multi-stage rotation adjustment of position during use, which affects the drilling range of the drilling positioning structure, makes it inconvenient to move the drilling sequentially, affects the loading and unloading time, makes it inconvenient to adjust and clamp the circuit board, and makes it inconvenient to adjust the position of the circuit board in multiple stages, thus affecting the efficiency of the drilling positioning structure to move the drilling sequentially. Utility Model Content

[0006] The purpose of this utility model is to provide a drilling positioning structure for multi-layer circuit boards, so as to solve the problems mentioned in the background art, which are that the drilling positioning structure is not convenient for multi-level rotation adjustment, which affects the drilling range of the drilling positioning structure, is not convenient for sequential drilling, which affects the loading and unloading time, is not convenient for adjusting and clamping the circuit board, and is not convenient for multi-level rotation adjustment of the circuit board, which affects the efficiency of sequential drilling.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drilling and positioning structure for a multilayer circuit board, comprising a support column and a first rotating arm. The first rotating arm is slidably mounted on the top of the support column, and a second rotating arm is slidably mounted on the top of the first rotating arm. A drill bit is disposed on the outside of the second rotating arm, and tracks are symmetrically disposed on the outside of the drill bit. Multiple sets of rotating plates are disposed on the outside of the support column, and a first gimbal plate is disposed on the outside of each of the rotating plates. A second gimbal plate is disposed on the outside of each of the first gimbal plates. A second motor is installed inside the support column, and the output end of the second motor is connected to the first rotating arm. A third motor is installed at the bottom of the first rotating arm, extending through the first rotating arm to its outside. The output end of the third motor is connected to the second rotating arm. A movable column is slidably mounted inside the second rotating arm, and a first threaded block is installed inside the movable column. The first threaded block is fixedly connected to the second rotating arm. A servo motor is installed at the top of the movable column, and a first threaded rod is installed at the output end of the servo motor. The first threaded rod extends to the bottom of the movable column and is movably connected thereto. The first threaded rod is threadedly connected to the first threaded block.

[0008] Preferably, the track is provided with multiple sets of movable plates, and two sets of support shafts are symmetrically and movably installed on the side walls of each movable plate. Each support shaft is fitted with an electric wheel, and the electric wheel is slidably connected to the movable plate.

[0009] Preferably, each of the movable plates has a rotating shaft movably installed inside, the rotating shaft extends through the movable plate to its outside, the bottom end of each rotating shaft outside the movable plate is equipped with a worm gear, and the bottom end of each movable plate is equipped with a stepper motor.

[0010] Preferably, each stepper motor has a worm gear installed at its output end, and the worm gear meshes with a worm wheel.

[0011] Preferably, a power motor is installed on the side wall of the rotating plate, and a second threaded rod is installed at the output end of each power motor. The second threaded rod extends to the outside of the rotating plate and is movably connected thereto. A second threaded block is fitted on the surface of each second threaded rod, and the second threaded rod is threadedly connected to the second threaded block. The second threaded block is connected to the first gimbal plate.

[0012] Preferably, a variable frequency motor is installed on the side wall of the first gimbal plate, and a third threaded rod is installed at the output end of each variable frequency motor. The third threaded rod extends to the outside of the first gimbal plate and is movably connected thereto. A third threaded block is fitted on the surface of each third threaded rod.

[0013] Preferably, the third threaded rods are all threadedly connected to the third threaded blocks, the third threaded blocks are all connected to the second gimbal plate, the second gimbal plate is equipped with a first motor on all four sides, the output end of the first motor is equipped with a fourth threaded rod, and the fourth threaded rod extends into the interior of the second gimbal plate and is movably connected thereto.

[0014] Preferably, the surface of each of the fourth threaded rods is fitted with a fifth threaded block, the fourth threaded rods are all threadedly connected to the fifth threaded blocks, and the top of each fifth threaded block is fitted with a clamping plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the drilling positioning structure not only realizes the convenient multi-level rotation adjustment position of the drilling positioning structure, increases the drilling range of the drilling positioning structure, facilitates the sequential movement of drilling, shortens the loading and unloading time, but also facilitates the adjustable clamping and fixing of the circuit board, facilitates the multi-level rotation adjustment position of the circuit board, and improves the efficiency of the sequential movement of drilling positioning structure.

[0016] (1) The circuit board is placed on the surface of the second gimbal plate and clamped. The second motor drives the first rotating arm, the second rotating arm, the moving column, and the drill bit to rotate. The third motor drives the second rotating arm, the moving column, and the drill bit to rotate at a certain angle. The servo motor drives the first threaded rod to rotate. Under the threaded connection between the first threaded rod and the first threaded block, the first threaded rod drives the moving column and the drill bit to move up and down to the surface of the circuit board to drill holes. This facilitates convenient multi-level rotation adjustment of the position and realizes convenient multi-level rotation adjustment of the drilling positioning structure, increasing the drilling range of the drilling positioning structure.

[0017] (2) Open multiple sets of electric wheels. With the support of the support shaft, the electric wheels drive the rotating shaft, moving plate, first gimbal plate, second gimbal plate and circuit board to move sequentially to the working area for drilling. This realizes the convenient sequential movement of the drilling positioning structure for drilling, shortens the loading and unloading time, and improves the efficiency of sequential movement of the drilling positioning structure for drilling.

[0018] (3) The first motor drives the fourth threaded rod to rotate. Under the threaded connection between the fourth threaded rod and the fifth threaded block, multiple sets of fourth threaded rods drive multiple sets of fifth threaded blocks to move in opposite directions to clamp the circuit board. The power motor drives the second threaded rod to rotate. Under the threaded connection between the second threaded rod and the second threaded block, the second threaded block drives the first gimbal plate, the second gimbal plate, and the circuit board to move. The frequency converter motor drives the third threaded rod to rotate. Under the threaded connection between the frequency converter motor and the third threaded rod, the third threaded rod drives the second gimbal plate and the circuit board to move to the designated position. When it is necessary to rotate the circuit board by a certain angle, the stepper motor drives the worm gear to rotate. The worm gear drives the worm wheel to rotate. The worm wheel drives the rotating shaft, the rotating plate, the first gimbal plate, the second gimbal plate, and the circuit board to rotate by a certain angle. This facilitates convenient adjustment of the circuit board position for drilling. It realizes convenient adjustment and clamping of the circuit board by the drilling positioning structure, facilitates multi-level rotation adjustment of the circuit board position, and improves the drilling efficiency of the drilling positioning structure for drilling the circuit board. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a front view structural diagram of the present utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the first rotating arm of this utility model;

[0022] Figure 4 This is a front view cross-sectional structural diagram of the support column of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the movable column of this utility model;

[0024] Figure 6 This is a three-dimensional structural diagram of the movable plate of this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the stepper motor of this utility model;

[0026] Figure 8 This is a three-dimensional structural diagram of the rotating plate of this utility model;

[0027] Figure 9 This is a three-dimensional structural diagram of the first gimbal plate of this utility model;

[0028] Figure 10 This is a three-dimensional structural diagram of the second gimbal plate of this utility model.

[0029] In the diagram: 1. Support column; 2. First rotating arm; 3. Second rotating arm; 4. Drill bit; 5. Track; 6. Rotating plate; 7. Moving column; 8. Servo motor; 9. First threaded rod; 10. First threaded block; 11. Moving plate; 12. Support shaft; 13. Electric wheel; 14. Rotating shaft; 15. Stepper motor; 16. Worm gear; 17. Worm wheel; 18. First gimbal plate; 19. Second gimbal plate; 20. Power motor; 21. Second threaded rod; 22. Second threaded block; 23. Variable frequency motor; 24. Third threaded rod; 25. Third threaded block; 26. First motor; 27. Fourth threaded rod; 28. Fifth threaded block; 29. ​​Clamping plate; 30. Second motor; 31. Third motor. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0031] Please see Figure 1-10 This utility model provides an embodiment of a drilling and positioning structure for a multilayer circuit board, comprising a support column 1 and a first rotating arm 2. The first rotating arm 2 is slidably mounted on the top of the support column 1, and a second rotating arm 3 is slidably mounted on the top of the first rotating arm 2. A drill bit 4 is disposed on the outside of the second rotating arm 3, and tracks 5 are symmetrically disposed on the outside of the drill bit 4. Multiple sets of rotating plates 6 are disposed on the outside of the support column 1, and a first gimbal plate 18 is disposed on the outside of each of the rotating plates 6. A second gimbal plate 19 is disposed on the outside of each of the first gimbal plate 18. A second motor 30 is installed inside the support column 1, and the output end of the second motor 30 is connected to the first... The rotating arms 2 are connected. A third motor 31 is installed at the bottom of the first rotating arm 2. The third motor 31 extends through the first rotating arm 2 to its outside. The output end of the third motor 31 is connected to the second rotating arm 3. A movable column 7 is slidably installed inside the second rotating arm 3. A first threaded block 10 is installed inside the movable column 7. The first threaded block 10 is fixedly connected to the second rotating arm 3. A servo motor 8 is installed at the top of the movable column 7. A first threaded rod 9 is installed at the output end of the servo motor 8. The first threaded rod 9 extends to the bottom of the movable column 7 and is movably connected to it. The first threaded rod 9 is threadedly connected to the first threaded block 10.

[0032] When using the multi-layer circuit board drilling positioning structure, the circuit board is placed on the surface of the second gimbal plate 19 and clamped. The second motor 30 is turned on, and under the support of the support column 1, the second motor 30 drives the first rotating arm 2, the second rotating arm 3, the moving column 7, and the drill bit 4 to rotate. The third motor 31 is turned on, and under the support of the first rotating arm 2, the third motor 31 drives the second rotating arm 3, the moving column 7, and the drill bit 4 to rotate at a certain angle. The servo motor 8 is turned on, and under the support of the moving column 7, the servo motor 8 drives the first threaded rod 9 to rotate. With the threaded connection between the first threaded rod 9 and the first threaded block 10, the first threaded rod 9 drives the moving column 7 and the drill bit 4 to move up and down to the surface of the circuit board for drilling. This facilitates convenient multi-level rotation adjustment of the position, realizes convenient multi-level rotation adjustment of the drilling positioning structure, and increases the drilling range of the drilling positioning structure.

[0033] The track 5 is provided with multiple sets of movable plates 11. Two sets of support shafts 12 are symmetrically and movably installed on the side wall of each movable plate 11. Electric wheels 13 are fitted on the surface of each support shaft 12. The electric wheels 13 are slidably connected to the movable plate 11.

[0034] The movable plate 11 has a rotating shaft 14 installed inside it. The rotating shaft 14 extends through the movable plate 11 to the outside. The bottom of the rotating shaft 14 outside the movable plate 11 is equipped with a worm gear 17. The bottom of the movable plate 11 is equipped with a stepper motor 15.

[0035] The output ends of the stepper motor 15 are all equipped with worm gears 16, and the worm gears 16 are all meshed with worm wheels 17;

[0036] When multiple circuit boards need to be conveyed and drilled sequentially, multiple sets of electric wheels 13 are opened. With the support of the support shaft 12, the electric wheels 13 drive the rotating shaft 14, the moving plate 11, the first gimbal plate 18, the second gimbal plate 19, and the circuit boards to move sequentially to the working area for drilling. This realizes the convenient sequential movement of the drilling positioning structure for drilling, shortens the loading and unloading time, and improves the efficiency of the sequential movement of the drilling positioning structure for drilling.

[0037] A power motor 20 is installed on the side wall of the rotating plate 6. The output end of the power motor 20 is equipped with a second threaded rod 21. The second threaded rod 21 extends to the outside of the rotating plate 6 and is movably connected thereto. The surface of the second threaded rod 21 is fitted with a second threaded block 22. The second threaded rod 21 is threadedly connected to the second threaded block 22. The second threaded block 22 is connected to the first gimbal plate 18.

[0038] A variable frequency motor 23 is installed on the side wall of the first gimbal plate 18. A third threaded rod 24 is installed at the output end of the variable frequency motor 23. The third threaded rod 24 extends to the outside of the first gimbal plate 18 and is movably connected thereto. A third threaded block 25 is fitted on the surface of the third threaded rod 24.

[0039] The third threaded rod 24 is threadedly connected to the third threaded block 25. The third threaded block 25 is connected to the second gimbal plate 19. The first motor 26 is installed on the four sides of the second gimbal plate 19. The output end of the first motor 26 is installed with the fourth threaded rod 27. The fourth threaded rod 27 extends into the interior of the second gimbal plate 19 and is movably connected to it.

[0040] The surface of the fourth threaded rod 27 is fitted with a fifth threaded block 28, and the fourth threaded rod 27 is threadedly connected to the fifth threaded block 28. The top of the fifth threaded block 28 is fitted with a clamping plate 29.

[0041] When the circuit board needs to be repositioned, multiple sets of first motors 26 are activated. Supported by the second gimbal plate 19, the first motors 26 drive the fourth threaded rods 27 to rotate. With the threaded connection between the fourth threaded rods 27 and the fifth threaded blocks 28, multiple sets of fourth threaded rods 27 drive multiple sets of fifth threaded blocks 28 to move in opposite directions, clamping the circuit board. Then, the power motor 20 is activated. Supported by the rotating plate 6, the power motor 20 drives the second threaded rod 21 to rotate. With the threaded connection between the second threaded rod 21 and the second threaded block 22, the second threaded block 22 drives the first gimbal plate 18, the second gimbal plate 19, and the circuit board to move. Finally, the variable frequency motor 23 is activated. Supported by the first gimbal plate 18, the variable frequency motor 23 drives the third threaded rod 24 to rotate. With the threaded connection between 23 and the third threaded rod 24, the third threaded rod 24 drives the second gimbal plate 19 and the circuit board to move to the designated position. When it is necessary to rotate the circuit board by a certain angle, the stepper motor 15 is turned on. With the support of the moving plate 11, the stepper motor 15 drives the worm gear 16 to rotate. Under the meshing of the worm gear 16 and the worm wheel 17, the worm gear 16 drives the worm wheel 17 to rotate. The worm wheel 17 drives the rotating shaft 14, the rotating plate 6, the first gimbal plate 18, the second gimbal plate 19, and the circuit board to rotate by a certain angle. This facilitates convenient adjustment of the circuit board position for drilling, realizes convenient adjustable clamping and fixing of the circuit board by the drilling positioning structure, facilitates multi-level rotation adjustment of the circuit board position, and improves the drilling efficiency of the drilling positioning structure for drilling the circuit board.

[0042] Working principle: When using the multi-layer circuit board drilling positioning structure, the circuit board is placed on the surface of the second gimbal plate 19 and clamped. The second motor 30 drives the first rotating arm 2, the second rotating arm 3, the moving column 7, and the drill bit 4 to rotate. The third motor 31 drives the second rotating arm 3, the moving column 7, and the drill bit 4 to rotate at a certain angle. The servo motor 8 drives the first threaded rod 9 to rotate. The first threaded rod 9 drives the moving column 7 and the drill bit 4 to move up and down to the surface of the circuit board for drilling. This facilitates convenient multi-stage rotation adjustment. When multiple circuit boards need to be conveyed and drilled sequentially, multiple sets of electric wheels 13 are opened. Supported by the support shaft 12, the electric wheels 13 drive the rotating shaft 14, the moving plate 11, the first gimbal plate 18, the second gimbal plate 19, and the circuit board to move sequentially to the working area for drilling. When the position of the circuit board needs to be adjusted, the first motor 26 drives the fourth threaded rod 27 to rotate. With the threaded connection between the threaded rod 27 and the fifth threaded block 28, multiple sets of fourth threaded rods 27 drive multiple sets of fifth threaded blocks 28 to move in opposite directions, clamping the circuit board. The power motor 20 drives the second threaded rod 21 to rotate, and the second threaded block 22 drives the first gimbal plate 18, the second gimbal plate 19, and the circuit board to move. The frequency converter motor 23 drives the third threaded rod 24 to rotate. With the threaded connection between the frequency converter motor 23 and the third threaded rod 24, the third threaded rod 24 drives the second gimbal plate 19 and the circuit board to move to the designated position. When it is necessary to rotate the circuit board by a certain angle, the stepper motor 15 drives the worm gear 16 to rotate, and the worm gear 16 drives the worm wheel 17 to rotate. The worm wheel 17 drives the rotating shaft 14, the rotating plate 6, the first gimbal plate 18, the second gimbal plate 19, and the circuit board to rotate by a certain angle, which facilitates convenient adjustment of the circuit board position for drilling, thus completing the use of the drilling positioning structure.

Claims

1. A drilling positioning structure for multilayer circuit boards, characterized in that: The system includes a support column (1) and a first rotating arm (2). The first rotating arm (2) is slidably mounted on the top of the support column (1), and a second rotating arm (3) is slidably mounted on the top of the first rotating arm (2). A drill bit (4) is disposed on the outside of the second rotating arm (3), and tracks (5) are symmetrically disposed on the outside of the drill bit (4). Multiple sets of rotating plates (6) are disposed on the outside of the support column (1). A first gimbal plate (18) is disposed on the outside of each of the rotating plates (6), and a second gimbal plate (19) is disposed on the outside of each of the first gimbal plates (18). A second motor (30) is installed inside the support column (1), and the output end of the second motor (30) is connected to the first rotating arm (2). (2) is equipped with a third motor (31) at the bottom end. The third motor (31) extends through the first rotating arm (2) to its outside. The output end of the third motor (31) is connected to the second rotating arm (3). A moving column (7) is slidably installed inside the second rotating arm (3). A first threaded block (10) is installed inside the moving column (7). The first threaded block (10) is fixedly connected to the second rotating arm (3). A servo motor (8) is installed at the top end of the moving column (7). A first threaded rod (9) is installed at the output end of the servo motor (8). The first threaded rod (9) extends to the bottom end of the moving column (7) and is movably connected to it. The first threaded rod (9) is threadedly connected to the first threaded block (10).

2. The drilling positioning structure for a multilayer circuit board according to claim 1, characterized in that: The track (5) has multiple sets of movable plates (11) on its exterior. Two sets of support shafts (12) are symmetrically and movably installed on the side walls of each movable plate (11). Each support shaft (12) is fitted with an electric wheel (13), and the electric wheel (13) is slidably connected to the movable plate (11).

3. The drilling positioning structure for a multilayer circuit board according to claim 2, characterized in that: The movable plate (11) has a rotating shaft (14) installed inside it. The rotating shaft (14) extends through the movable plate (11) to the outside. The bottom end of the rotating shaft (14) outside the movable plate (11) is equipped with a worm gear (17). The bottom end of the movable plate (11) is equipped with a stepper motor (15).

4. The drilling positioning structure for a multilayer circuit board according to claim 3, characterized in that: The output ends of each stepper motor (15) are equipped with worm gears (16), and each worm gear (16) meshes with a worm wheel (17).

5. The drilling positioning structure for a multilayer circuit board according to claim 1, characterized in that: A power motor (20) is installed on the side wall of the rotating plate (6). The output end of the power motor (20) is equipped with a second threaded rod (21). The second threaded rod (21) extends to the outside of the rotating plate (6) and is movably connected thereto. The surface of the second threaded rod (21) is fitted with a second threaded block (22). The second threaded rod (21) is threadedly connected to the second threaded block (22). The second threaded block (22) is connected to the first gimbal plate (18).

6. The drilling positioning structure for a multilayer circuit board according to claim 5, characterized in that: A variable frequency motor (23) is installed on the side wall of the first gimbal plate (18). A third threaded rod (24) is installed at the output end of the variable frequency motor (23). The third threaded rod (24) extends to the outside of the first gimbal plate (18) and is movably connected thereto. A third threaded block (25) is fitted on the surface of the third threaded rod (24).

7. The drilling positioning structure for a multilayer circuit board according to claim 6, characterized in that: The third threaded rod (24) is threadedly connected to the third threaded block (25), and the third threaded block (25) is connected to the second gimbal plate (19). The second gimbal plate (19) is equipped with a first motor (26) on all four sides. The output end of the first motor (26) is equipped with a fourth threaded rod (27), and the fourth threaded rod (27) extends into the interior of the second gimbal plate (19) and is movably connected to it.

8. The drilling positioning structure for a multilayer circuit board according to claim 7, characterized in that: The surface of each of the fourth threaded rods (27) is fitted with a fifth threaded block (28), and each of the fourth threaded rods (27) is threadedly connected to the fifth threaded block (28). Each of the fifth threaded blocks (28) has a clamp (29) installed at its top.

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