Flexible hole device for circuit board

Abstract

The utility model discloses a kind of flexible trepanning devices of circuit board, including rack, substrate, lifting mechanism, rotary switching cylinder, second motor, magnetic coupler driving rotor end, power transmission mechanism, drill bit and rotary transposition mechanism, lifting mechanism is installed on rack and is used to drive substrate to move up and down, rotary switching cylinder is rotatably connected on substrate, rotary transposition mechanism is installed on substrate and is used to drive rotary switching cylinder to rotate, the quantity of drill bit and power transmission mechanism is six, the diameter of six drill bits is different, each drill bit is fixed with a power transmission mechanism, second motor is located in the inside of rotary switching cylinder and is fixed on substrate, the output shaft of second motor is fixed with magnetic coupler driving rotor end, magnetic coupler driving rotor end is opposite to just below.The utility model is convenient for the quick switching of drill bit, it is convenient to punch different diameter holes for circuit board, use more conveniently.

Description

Technical Field

[0001] This utility model relates to the field of circuit board opening technology, and in particular to a flexible circuit board opening device. Background Technology

[0002] Chinese patent CN220693408U discloses a flexible drilling device for circuit boards, including a clamping assembly. The clamping assembly comprises an operating table, a first mounting hole, a first clamping motor, a first forward and reverse screw, a first clamping block, a first limiting groove, a first clamping arm, a positioning frame, and a first limiting hole. This invention utilizes two first clamping arms and two second clamping arms that can move simultaneously inward or outward, facilitating the clamping and fixing of circuit boards of different sizes. The simultaneous clamping of the circuit board from four sides provides a more secure fixation, thereby improving the drilling accuracy. Positioning is achieved by activating the first servo motor and the electric telescopic arm to move the drill bit on the drilling motor back and forth and left and right. This facilitates multi-position drilling of the circuit board clamped at the center of the positioning frame, eliminating the need to remove the circuit board, move its position, and reposition it. The operation is simple, saves time, and improves the drilling efficiency of circuit boards.

[0003] The aforementioned patent only uses one type and size of drill bit, which can only drill holes of one diameter. However, drilling holes on circuit boards often requires drilling holes of various diameters. This means that the aforementioned patent requires multiple disassemblies and replacements of different drill bits to meet actual drilling needs, which is quite cumbersome. Therefore, in view of the above situation, there is an urgent need to develop a flexible circuit board drilling device that allows for quick and easy switching of drill bits, facilitating the drilling of holes of different diameters on circuit boards, and making it more convenient to use. This would overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a flexible perforation device for circuit boards to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flexible perforation device for circuit boards includes a frame, a substrate, a lifting mechanism, a rotary switching cylinder, a second motor, a magnetic coupler active rotor end, a power transmission mechanism, drill bits, and a rotary positioning mechanism. The lifting mechanism is mounted on the frame and is used to move the substrate up and down. The rotary switching cylinder is rotatably connected to the substrate. The rotary positioning mechanism is mounted on the substrate and is used to drive the rotary switching cylinder to rotate. There are six drill bits and six power transmission mechanisms. The diameters of the six drill bits are different, and each drill bit is fixed to one power transmission mechanism. The second motor is located inside the rotary switching cylinder and fixed to the substrate. The output shaft of the second motor is fixed to the magnetic coupler active rotor end, which faces directly downwards. The power transmission mechanism includes a rotating shaft and a magnetic coupler driven rotor end. The rotating shaft is rotatably connected to the rotary switching cylinder. The head of the rotating shaft is fixed to the magnetic coupler driven rotor end, which is used to cooperate with the magnetic coupler active rotor end to transmit rotation. The tail of the rotating shaft is fixed to the drill bit.

[0007] Preferably, the lifting mechanism includes: a first motor, a lead screw, a threaded sleeve, a slider, and a slide rail. The first motor is fixed on the frame, the lead screw is rotatably connected inside the frame, the output shaft of the first motor is fixed to the lead screw via a coupling, a threaded sleeve is installed on the lead screw, the threaded sleeve is fixed to the base plate, two sliders are fixed to the rear side of the base plate, each slider is slidably installed on a slide rail, and the slide rail is fixed inside the frame.

[0008] Preferably, the rotary transposition mechanism includes a third motor, a pinion, and a large gear. The third motor is fixed on the base plate, and a pinion is fixed on the output shaft of the third motor. A large gear meshing with the pinion is provided on one side of the pinion.

[0009] Preferably, the transmission ratio between the pinion and the gear is 6:1.

[0010] Preferably, the six power transmission mechanisms are evenly distributed in a circle with the central axis of the rotating switching cylinder as the reference.

[0011] Preferably, a PLC controller is fixedly installed on the frame, and the first motor, the second motor, and the third motor are electrically connected to the PLC controller.

[0012] The beneficial effects of this utility model are as follows: When using this flexible drilling device for circuit boards, firstly, the drill bit of the required size is rotated according to the diameter of the hole to be drilled. A third motor drives a small gear and a large gear to rotate, which in turn drives a rotating switching cylinder. The rotating switching cylinder drives multiple power transmission mechanisms and the drill bit to rotate and change position, so that the drill bit of the required size and the power transmission mechanism rotate directly below the active rotor end of the magnetic coupler. Then, the circuit board is placed below the drill bit. A second motor drives the active rotor end of the magnetic coupler to rotate, and the active rotor end transmits the rotation to the driven rotor end and the rotating shaft via a magnetic field. The rotating shaft drives the drill bit to rotate. Simultaneously, the first motor rotates forward, driving the lead screw to rotate. The lead screw rotation causes the threaded sleeve and the base plate to move downwards, which in turn drives the rotating switching cylinder, the power transmission mechanism, and the drill bit to move downwards, thus allowing the drill bit to gradually approach the circuit board for drilling. In summary, this utility model offers convenient and quick drill bit switching, facilitating the drilling of holes of different diameters on circuit boards, and making it more convenient to use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0014] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0015] Figure 3 This is a partial structural diagram of the present invention. Figure 1 .

[0016] Figure 4 This is a partial structural diagram of the present invention. Figure 2 .

[0017] Figure 5 This is a partial structural diagram of the present invention. Figure 3 .

[0018] Legend:

[0019] 1. Frame; 2. Base plate; 3. Lifting mechanism; 301. First motor; 302. Lead screw; 303. Threaded sleeve; 304. Slider; 305. Slide rail; 4. Rotary switching cylinder; 5. Second motor; 6. Magnetic coupler active rotor end; 7. Power transmission mechanism; 701. Rotating shaft; 702. Magnetic coupler driven rotor end; 8. Drill bit; 9. Rotary switching mechanism; 901. Third motor; 902. Small gear; 903. Large gear; 10. PLC controller. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Specific implementation examples are given below.

[0022] See Figures 1-5 In this embodiment of the present invention, a flexible perforation device for circuit boards includes a frame 1, a substrate 2, a lifting mechanism 3, a rotary switching cylinder 4, a second motor 5, a magnetic coupler active rotor end 6, a power transmission mechanism 7, drill bits 8, and a rotary positioning mechanism 9. The lifting mechanism 3 is mounted on the frame 1 and is used to drive the substrate 2 to move up and down. The rotary switching cylinder 4 is rotatably connected to the substrate 2. The rotary positioning mechanism 9 is mounted on the substrate 2 and is used to drive the rotary switching cylinder 4 to rotate. There are six drill bits 8 and six power transmission mechanisms 7. The drill bits 8 are used to drill holes in the circuit board. The six drill bits 8 have different diameters to drill holes of different diameters to meet different usage requirements. Each drill bit 8 is fixed to one power transmission mechanism 7. Each power transmission mechanism 7 is rotatably connected to the rotary switching cylinder 4. The six power transmission mechanisms 7 are evenly distributed in a circle with the central axis of the rotary switching cylinder 4 as the reference (i.e., adjacent power transmission mechanisms 7 are evenly distributed in a circle). The included angle is 60°. The second motor 5 is located inside the rotary switching cylinder 4 and fixed on the base plate 2. The output shaft of the second motor 5 is fixed to the active rotor end 6 of the magnetic coupler. The active rotor end 6 of the magnetic coupler faces directly downward. The power transmission mechanism 7 includes: a rotating shaft 701 and a driven rotor end 702 of the magnetic coupler. The rotating shaft 701 is rotatably connected to the rotary switching cylinder 4. The head of the rotating shaft 701 is fixed to the driven rotor end 702 of the magnetic coupler. The driven rotor end 702 of the magnetic coupler is used to cooperate with the active rotor end 6 of the magnetic coupler to transmit rotation. The tail of the rotating shaft 701 is fixed to the drill bit 8. (The magnetic coupler is existing technology. It achieves non-contact torque transmission through the interaction of magnetic fields: when the active rotor rotates, the magnetic field generated by its permanent magnet or electromagnetic coil will penetrate the gap and act on the driven rotor, so that the driven rotor will follow the active rotor to rotate synchronously under the drive of the magnetic field force, thereby transmitting the torque of the power source to the load).

[0023] The lifting mechanism 3 includes: a first motor 301, a lead screw 302, a threaded sleeve 303, a slider 304, and a slide rail 305. The first motor 301 is fixed on the frame 1. The lead screw 302 is rotatably connected inside the frame 1. The output shaft of the first motor 301 is fixed to the lead screw 302 via a coupling. The threaded sleeve 303 is installed on the lead screw 302 and is fixed to the base plate 2. Two sliders 304 are fixed to the rear side of the base plate 2. Each slider 304 is slidably installed on a slide rail 305. The slide rail 305 is fixed inside the frame 1. In use, the first motor 301 rotates forward to drive the lead screw 302 to rotate. The rotation of the lead screw 302 drives the threaded sleeve 303 and the base plate 2 to move downward (the first motor 301 rotates in reverse to drive upward). The base plate 2 drives the rotating switching cylinder 4, the power transmission mechanism 7, and the drill bit 8 to move downward, so that the drill bit 8 gradually approaches the circuit board to drill holes.

[0024] The rotary transposition mechanism 9 includes a third motor 901, a pinion 902, and a large gear 903. The third motor 901 is fixed to the base plate 2. The pinion 902 is fixed on the output shaft of the third motor 901. A large gear 903 meshes with the pinion 902 on one side. The transmission ratio between the pinion 902 and the large gear 903 is 6:1. The output shaft of the third motor 901 rotates one revolution each time. In use, the third motor 901 drives the pinion 902 and the large gear 903. The rotation of wheel 903 drives the rotation of the rotary switching cylinder 4 via the large gear 903. The rotary switching cylinder 4 drives multiple power transmission mechanisms 7 and drill bits 8 to rotate and change positions. When the third motor 901 rotates one revolution, the small gear 902 drives the large gear 903 to rotate one-sixth of a revolution (i.e., 60°), so that the next power transmission mechanism 7 and drill bit 8 rotates exactly to be directly below the active rotor end 6 of the magnetic coupler, so as to ensure that the power transmission mechanism 7 and drill bit 8 can be aligned with the active rotor end 6 of the magnetic coupler after each switch.

[0025] A PLC controller 10 is fixedly installed on the frame 1. The first motor 301, the second motor 5, and the third motor 901 are electrically connected to the PLC controller 10 for control purposes.

[0026] Working principle: This flexible drilling device for circuit boards operates by first rotating the drill bit 8 to the required diameter. The third motor 901 drives the pinion 902 and the large gear 903 to rotate. The large gear 903 then drives the rotary switching cylinder 4, which in turn rotates multiple power transmission mechanisms 7 and the drill bit 8, shifting their positions until the drill bit 8 and power transmission mechanism 7 are directly below the active rotor end 6 of the magnetic coupler. The circuit board is then placed below the drill bit 8, and the process continues... The second motor 5 drives the active rotor end 6 of the magnetic coupler to rotate. The active rotor end 6 of the magnetic coupler transmits the rotation to the driven rotor end 702 and the rotating shaft 701 of the magnetic coupler through the magnetic field. The rotating shaft 701 drives the drill bit 8 to rotate. At the same time, the first motor 301 rotates forward, driving the lead screw 302 to rotate. The rotation of the lead screw 302 drives the threaded sleeve 303 and the base plate 2 to move down. The base plate 2 drives the rotary switching cylinder 4, the power transmission mechanism 7, and the drill bit 8 to move down, so that the drill bit 8 gradually approaches the circuit board to drill a hole.

[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flexible perforation device for circuit boards, characterized in that, The system includes a frame (1), a base plate (2), a lifting mechanism (3), a rotary switching cylinder (4), a second motor (5), a magnetic coupler active rotor end (6), a power transmission mechanism (7), drill bits (8), and a rotary switching mechanism (9). The lifting mechanism (3) is mounted on the frame (1) and is used to drive the base plate (2) to move up and down. The rotary switching cylinder (4) is rotatably connected to the base plate (2). The rotary switching mechanism (9) is mounted on the base plate (2) and is used to drive the rotary switching cylinder (4) to rotate. There are six drill bits (8) and six power transmission mechanisms (7). The diameters of the six drill bits (8) are different. Each drill bit (8) is fixed to one power transmission mechanism (7). The second motor (5) is located inside the rotary switching cylinder (4) and fixed on the base plate (2). The output shaft of the second motor (5) is fixed to the active rotor end (6) of the magnetic coupler. The active rotor end (6) of the magnetic coupler faces directly downward. The power transmission mechanism (7) includes: a rotating shaft (701) and a driven rotor end (702) of the magnetic coupler. The rotating shaft (701) is rotatably connected to the rotary switching cylinder (4). The head of the rotating shaft (701) is fixed to the driven rotor end (702) of the magnetic coupler. The driven rotor end (702) of the magnetic coupler is used to cooperate with the active rotor end (6) of the magnetic coupler to transmit rotation. The tail of the rotating shaft (701) is fixed to the drill bit (8).

2. The flexible perforation device for circuit boards according to claim 1, characterized in that, The lifting mechanism (3) includes: a first motor (301), a lead screw (302), a threaded sleeve (303), a slider (304), and a slide rail (305). The first motor (301) is fixed on the frame (1). The lead screw (302) is rotatably connected to the frame (1). The output shaft of the first motor (301) is fixed to the lead screw (302) through a coupling. The lead screw (302) is equipped with a threaded sleeve (303). The threaded sleeve (303) is fixed to the base plate (2). Two sliders (304) are fixed on the rear side of the base plate (2). Each slider (304) is slidably mounted on a slide rail (305). The slide rail (305) is fixed inside the frame (1).

3. The flexible perforation device for circuit boards according to claim 2, characterized in that, The rotary transposition mechanism (9) includes a third motor (901), a pinion (902) and a large gear (903). The third motor (901) is fixed on the base plate (2). A pinion (902) is fixed on the output shaft of the third motor (901). A large gear (903) meshes with the pinion (902) on one side.

4. The flexible perforation device for circuit boards according to claim 3, characterized in that, The transmission ratio of the pinion (902) and the gear (903) is 6:

1.

5. The flexible perforation device for circuit boards according to claim 1, characterized in that, The six power transmission mechanisms (7) are evenly distributed in a circle with the central axis of the rotary switching cylinder (4) as the reference.

6. The flexible perforation device for circuit boards according to claim 3, characterized in that, A PLC controller (10) is fixedly installed on the frame (1), and the first motor (301), the second motor (5), and the third motor (901) are electrically connected to the PLC controller (10).

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