Circuit board drilling device

Abstract

The utility model relates to the field of circuit boards, in particular to a circuit board drilling device which comprises a bottom plate, a supporting rod and a screw rod are transversely arranged above the bottom plate, the screw rod is driven by a positioning motor to rotate, a sliding table is further arranged above the bottom plate, a mounting groove is formed in the sliding table, the screw rod penetrates through the sliding table and is in threaded connection with the sliding table, and the mounting groove is in threaded connection with the mounting groove. The supporting rod penetrates through the sliding table and is in sliding connection with the sliding table, a sliding plate is arranged above the sliding table, an air cylinder is fixed to the bottom of the sliding plate, a sliding block is fixed to the tail end of a piston rod of the air cylinder, a drilling motor is fixed to the bottom of the sliding block, a drill bit is fixed to the conveying end of the drilling motor, and a plurality of limiting rods are further fixed to the bottom of the sliding plate. The limiting rods penetrate through the sliding blocks and are in sliding connection with the sliding blocks, external threads are arranged on the limiting rods below the sliding blocks, and limiting nuts in threaded connection with the external threads are arranged at the positions of the external threads. The drilling depth on the circuit board can be adjusted by adjusting the position of the limiting nut.

Description

[Technical field]

[0001] The invention relates to the field of circuit boards, and in particular to a circuit board drilling device. [Background technology]

[0002] The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed (copper etching technology) circuit boards, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layouts.

[0003] During the circuit board manufacturing process, it is necessary to drill holes on the surface of the PCB circuit board during production. For example, patent application number CN202122805556.6 discloses a drilling device for PCB circuit board production, which can drive the hole opening mechanism to move horizontally through the lateral driving mechanism, and can drive the PCB circuit board to move longitudinally through the fixed seat through the longitudinal slide, thereby driving the drill bit to move flexibly on the surface of the PCB circuit board. The hole opening mechanism drives the drill bit to rotate at high speed and drives the drill bit to press down, so that drilling operations can be performed on the surface of the PCB circuit board. When the drill bit drills through the PCB circuit board, a hole will be formed on the surface of the pad. However, this type of drilling device is generally used to penetrate the circuit board, and the drilling device cannot control the drilling depth. After the multi-layer circuit board is penetrated, it will affect the circuit wiring on the other side. Therefore, this type of device penetrates the circuit board and cannot meet the use requirements of the multi-layer circuit board.

[0004] The present invention is proposed in view of the deficiencies in the prior art. [Summary of the invention]

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a circuit board drilling device.

[0006] The present invention can be implemented by the following technical solutions:

[0007] The present invention discloses a circuit board drilling device, comprising a base plate, a support rod and a screw rod are horizontally arranged above the base plate, the screw rod is driven to rotate by a positioning motor, a slide table is also arranged above the base plate, a mounting groove is arranged on the slide table, the screw rod passes through the slide table and is threadedly connected to the slide table, the support rod passes through the slide table and is slidably connected to the slide table, a slide table is arranged above the slide table, a cylinder is fixed to the bottom of the slide table, a slide block is fixed to the end of the piston rod of the cylinder, a drilling motor is fixed to the bottom of the slide table, a drill bit is fixed to the conveying end of the drilling motor, a plurality of limit rods are also fixed to the bottom of the slide table, the limit rods pass through the slide table and are slidably connected to the slide table, external threads are arranged on the limit rods below the slide table, and a limit nut threadedly connected to the external threads is arranged at the position of the external threads. Adjust the position of the limit nut according to the depth of the hole to be punched on the circuit board, and turn the limit nut. Since the limit nut is threadedly connected to the external thread on the limit rod, when the limit nut is turned, since the limit nut is threadedly connected to the limit rod, when the limit nut is rotated, the limit nut moves on the limit rod. After adjusting each limit nut to a suitable position, place the circuit board to be punched in the mounting groove of the slide, and drive the screw to rotate through the positioning motor. Since the screw is threadedly connected to the slide, when the screw rotates, the slide moves in the direction of the screw. After the circuit board on the slide reaches directly below the drill bit, the cylinder is started, the piston rod on the cylinder extends, and the slider moves down The slider continues to descend, and the slider is blocked by the limit nut after contacting the circuit board. The slider stops descending, and the cylinder is started again. The piston rod on the cylinder is shortened, and the slider rises. After the drill bit is separated from the circuit board, the positioning motor drives the screw to rotate in the opposite direction, and the slide returns to the initial position. The circuit board with the drilled hole is removed from the installation slot. The device can be used to drill holes on the surface of the circuit board, and the drilling depth on the circuit board can be adjusted by adjusting the position of the limit nut, which can effectively prevent the circuit board from being drilled through and affect the wiring of the circuit board.

[0008] Preferably, a plurality of limit devices are fixed on the slides on both sides of the installation slot, and the limit devices include a limit shaft fixed on the slide, and a limit plate rotatably connected to the limit shaft is provided on the limit shaft. After the circuit board is placed in the installation slot, the limit plate is rotated, and the limit plate is a cam structure. The limit plate blocks the circuit board and prevents it from being separated from the installation slot when drilling.

[0009] Preferably, vertical plates are also fixed vertically on the bottom plates on both sides of the slide, and a sliding rod and a screw rod are longitudinally arranged between the two vertical plates. The screw rod is driven to rotate by a limit motor, and the screw rod passes through the slide plate and is threadedly connected to the slide plate, and the sliding rod passes through the slide plate and is slidably connected to the slide plate. The limit motor drives the screw rod to rotate. Since the screw rod is threadedly connected to the slide plate, when the screw rod rotates, the slide plate can move in the direction of the screw rod, that is, the drill bit moves longitudinally, and the positioning motor drives the screw rod to rotate, so that the circuit board can move horizontally, that is, the drill bit can reach any position above the circuit board, that is, it can realize drilling operations at any position above the circuit board.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] The device can be used to drill holes on the surface of a circuit board, and the drilling depth on the circuit board can be adjusted by adjusting the position of the limit nut, which can effectively prevent the circuit board from being drilled through and affecting the wiring of the circuit board.

Brief Description of the Drawings

[0012] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 It is a structural schematic diagram of another angle of the present invention;

[0015] In the figure: 1, bottom plate; 2, support rod; 3, screw rod; 4, positioning motor; 5, slide; 6, mounting slot; 7, limit shaft; 8, limit plate; 9, vertical plate; 10, slide rod; 11, screw rod; 12, limit motor; 13, slide plate; 14, cylinder; 15, slide block; 16, drilling motor; 17, drill bit; 18, limit rod; 19, limit nut; 20, external thread; [Specific implementation method]

[0016] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0017] Embodiment 1:

[0018] like Figure 1 to Figure 2As shown, the present embodiment discloses a circuit board drilling device, comprising a base plate 1, a support rod 2 and a screw rod 3 are transversely arranged above the base plate 1, the screw rod 3 is driven to rotate by a positioning motor 4, a slide 5 is also arranged above the base plate 1, the slide 5 is provided with a mounting groove 6, the screw rod 3 passes through the slide 5 and is threadedly connected to the slide 5, the support rod 2 passes through the slide 5 and is slidably connected to the slide 5, a slide plate 13 is arranged above the slide 5, a cylinder 14 is fixed to the bottom of the slide 13, a slider 15 is fixed to the end of the piston rod of the cylinder 14, a drilling motor 16 is fixed to the bottom of the slider 15, a drill bit 17 is fixed to the conveying end of the drilling motor 16, a plurality of limit rods 18 are also fixed to the bottom of the slide 13, the limit rods 18 pass through the slider 15 and are slidably connected to the slider 15, external threads 20 are arranged on the limit rods 18 below the slider 15, and a limit nut 19 threadedly connected to the external thread 20 is arranged at the position of the external thread 20. The position of the limit nut 19 is adjusted according to the depth of the hole to be punched on the circuit board, and the limit nut 19 is rotated. Since the limit nut 19 is threadedly connected to the external thread 20 on the limit rod 18, when the limit nut 19 is rotated, since the limit nut 19 is threadedly connected to the limit rod 18, when the limit nut 19 is rotated, the limit nut 19 moves on the limit rod 18. After each limit nut 19 is adjusted to a suitable position, the circuit board to be punched is placed in the mounting groove 6 of the slide 5, and the screw 3 is driven to rotate by the positioning motor 4. Since the screw 3 is threadedly connected to the slide 5, when the screw 3 rotates, the slide 5 moves in the direction of the screw 3. After the circuit board on the slide 5 reaches directly below the drill bit 17, the cylinder 14 is started, and the piston rod on the cylinder 14 extends. , the slider 15 descends, and the high-speed rotating drill bit 17 descends with the slider 15. After the drill bit 17 contacts the circuit board, it drills a hole on the surface of the circuit board. The slider 15 continues to descend. After the slider 15 contacts the limit nut 19, it is blocked by the limit nut 19. The slider 15 stops descending, and the cylinder 14 is started again. The piston rod on the cylinder 14 is shortened, and the slider 15 rises. After the drill bit 17 is separated from the circuit board, the positioning motor 4 drives the screw rod 3 to rotate in the opposite direction, and the slide 5 returns to the initial position. The circuit board with the drilled hole is removed from the mounting groove 6. The device can be used to drill holes on the surface of the circuit board, and the drilling depth on the circuit board can be adjusted by adjusting the position of the limit nut 19, which can effectively prevent the circuit board from being drilled through and affecting the wiring of the circuit board.

[0019] Among them, vertical plates 9 are also vertically fixed on the bottom plate 1 on both sides of the slide 5, and a sliding rod 10 and a screw rod 11 are longitudinally arranged between the two vertical plates 9. The screw rod 11 is driven to rotate by a limit motor 12, and the screw rod 11 passes through a slide plate 13 and is threadedly connected with the slide plate 13. The sliding rod 10 passes through the slide plate 13 and is slidably connected with the slide plate 13. The limit motor 12 drives the screw rod 11 to rotate. Since the screw rod 11 is threadedly connected with the slide plate 13, when the screw rod 11 rotates, the slide plate 13 can be moved in the direction of the screw rod 11, that is, the drill bit 17 moves longitudinally, and the positioning motor 4 drives the screw rod 3 to rotate, so that the circuit board can be moved horizontally, that is, the drill bit 17 can reach any position above the circuit board, that is, it can be realized to perform drilling operations at any position above the circuit board.

[0020] Embodiment 2:

[0021] This embodiment discloses a circuit board drilling device. Based on the structure and principle of the first embodiment, a plurality of limit devices are fixed on the slide 5 on both sides of the mounting groove 6 of this embodiment. The limit devices include a limit shaft 7 fixed on the slide 5. The limit shaft 7 is provided with a limit plate 8 rotatably connected to the limit shaft 7. After the circuit board is placed in the mounting groove 6, the limit plate 8 is rotated. The limit plate 8 is a cam structure. The limit plate 8 blocks the circuit board and prevents it from being separated from the mounting groove 6 during drilling.

[0022] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be regarded as the scope of protection of the present invention.

Claims

1. A circuit board drilling device, comprising a base plate, characterized in that: A support rod and a screw are horizontally arranged above the base plate, and the screw is driven to rotate by a positioning motor. A slide is also arranged above the base plate, and a mounting groove is arranged on the slide. The screw passes through the slide and is threadedly connected to the slide. The support rod passes through the slide and is slidably connected to the slide. A slide is arranged above the slide, and a cylinder is fixed to the bottom of the slide, and a slide block is fixed to the end of the piston rod of the cylinder. A drilling motor is fixed to the bottom of the slide, and a drill bit is fixed to the conveying end of the drilling motor. A plurality of limit rods are also fixed to the bottom of the slide, and the limit rods pass through the slide and are slidably connected to the slide. External threads are arranged on the limit rods under the slide, and a limit nut threadedly connected to the external threads is arranged at the external thread position.

2. The circuit board drilling device according to claim 1, characterized in that: A plurality of limit devices are also fixed on the slides on both sides of the installation groove, and the limit devices include a limit shaft fixed on the slide, and a limit plate rotatably connected to the limit shaft is arranged on the limit shaft.

3. The circuit board drilling device according to claim 1, characterized in that: Vertical plates are vertically fixed on the bottom plates on both sides of the slide, and sliding rods and screw rods are longitudinally arranged between the two vertical plates. The screw rods are driven to rotate by the limit motor, and the screw rods pass through the slide plate and are threadedly connected to the slide plate, and the sliding rods pass through the slide plate and are slidably connected to the slide plate.

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