Circuit board groove milling device

Abstract

The utility model discloses a circuit board groove milling device which comprises a base, a displacement assembly, a placing plate and a pressing plate, a frame is fixedly arranged above the base, the frame is provided with a vertically-through channel, the displacement assembly is arranged above the frame, a first motor is fixedly arranged at the output end of the displacement assembly, and a second motor is arranged at the output end of the displacement assembly. The bottom of the first motor is in transmission connection with a milling cutter, the placing plate is movably arranged above the base and is connected with the base through a lifting mechanism, the pressing plate is hung at the bottom of the frame above the placing plate, and the pressing plate is provided with a vertically-through operation groove. Through the arrangement, after the circuit board is placed on the top of the placing plate, in the process of lifting the placing plate, the pressing plate automatically presses the circuit board, the circuit board is prevented from moving when the milling cutter works, the groove milling effect is ensured, and meanwhile operation steps are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board milling technology, and specifically relates to a circuit board milling device. Background Technology

[0002] A circuit board, also known as a PCB, is a board with printed conductors. During the manufacturing process of a circuit board, in order to enable the circuit board to meet certain functions, milling cutters are used to mill grooves into the circuit board.

[0003] Chinese patent CN219768391U discloses a PCB board linear slotting device. The solution includes a base plate, with support columns on both sides of the upper part of the base plate, a top plate at the upper end of the support columns, a placement plate between the top plate and the base plate, a lifting mechanism between the placement plate and the base plate, and a motor three movably mounted on the lower side of the top plate. A drill bit is mounted on the output end of the motor three. The above solution uses the lifting mechanism to lift the placement plate to below the drill bit, so that the drill bit is inserted into the circuit board. Then, the motor three is moved to slot the circuit board.

[0004] The above solution involves fixing the circuit board on the placement plate and setting a movable plate above the placement plate. A threaded post 2 is threadedly connected to the middle of the movable plate, and a pressure plate is set at the lower end of the threaded post 2. By rotating the threaded post 2, the pressure plate can be moved up and down to press the PCB board placed on the placement slot. However, when using the above solution, the threaded post 2 needs to be loosened and tightened once for each circuit board to be processed, which is relatively complicated and leads to low work efficiency. Utility Model Content

[0005] The present invention aims to provide a circuit board milling device to solve the problem of low work efficiency in the above-mentioned solutions.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A circuit board milling device includes a base, a displacement component, a placement plate, and a pressure plate. A frame is fixedly installed above the base, and the frame has a vertically penetrating channel. The displacement component is located above the frame, and a first motor is fixedly installed at the output end of the displacement component. A milling cutter is driven and connected to the bottom of the first motor. The placement plate is movably installed above the base and connected to the base through a lifting mechanism. The pressure plate is hung above the placement plate and at the bottom of the frame, and the pressure plate has a vertically penetrating operating groove.

[0008] The principle and effects of this technical solution:

[0009] The first motor is started to drive the milling cutter to rotate, placing the circuit board on the placement plate. The lifting mechanism is then driven to lift the placement plate. As the placement plate carries the circuit board upward, the top of the circuit board contacts the bottom of the pressure plate first. As the placement plate continues to be lifted, the spring is compressed and deformed, applying elastic force to the pressure plate and pushing it to press the circuit board tightly. When the milling cutter extends into the circuit board to a certain depth, the lifting of the placement plate stops, and the displacement component drives the first motor to move, performing milling work on the circuit board within the operating slot range.

[0010] With the above settings, after the circuit board is placed on top of the placement plate, the pressure plate automatically presses the circuit board during the lifting process of the placement plate, preventing the circuit board from moving when the milling cutter is working, ensuring the milling effect, reducing operation steps, and solving the problem of low work efficiency in the above solutions.

[0011] In this utility model, the lifting mechanism includes a bidirectional screw, a slider, and a second motor. A groove is provided on the top of the base, and the bidirectional screw is rotatably disposed in the groove. Two sliders are provided and are symmetrically fitted onto the positive and negative threaded sections of the bidirectional screw. The sliders slide against the inner sidewall of the groove. The tops of the two sliders are rotatably connected to connecting rods, and the tops of the connecting rods are rotatably connected to the bottom of the placement plate. The second motor is fixedly disposed on the sidewall of the base and is drivenly connected to the bidirectional screw.

[0012] The principle and effects of this technical solution:

[0013] In the initial state, the placement plate is in a low position, which drives the second motor to rotate the bidirectional screw. Because the slide groove restricts the rotation of the slider, the slider is displaced as the bidirectional screw rotates. Since the two sliders are located on the positive and negative thread sections of the bidirectional screw respectively, when the bidirectional screw rotates, the two sliders move in opposite directions, which in turn pushes the connecting rod to rotate in a more vertical direction, and the placement plate moves upward accordingly.

[0014] The above setup achieves the goal of lifting the placement plate using a lifting mechanism.

[0015] In this utility model, vertical rods are fixedly installed at the four corners of the top of the base, and the top of the vertical rods are fixedly connected to the bottom of the frame. The pressure plate and the placement plate are slidably sleeved on each vertical rod, and springs are sleeved on the outside of each vertical rod. The two ends of the springs are connected to the frame and the pressure plate.

[0016] The above settings ensure that both the pressure plate and the placement plate move vertically.

[0017] In this invention, a placement groove is provided on the top of the placement plate. Before lifting the placement plate, the circuit board is placed in the placement groove, which can position the circuit board and ensure that the circuit board will not move laterally when the milling cutter is working.

[0018] In this utility model, one outer side wall of the placement plate is provided with a notch that communicates with the placement groove, and the bottom of the pressure plate is provided with a protrusion that cooperates with the notch. The bottom of the protrusion is provided with a guide slope on the side near the placement groove.

[0019] The principle and effects of this technical solution:

[0020] The circuit board is pushed into the placement slot through the notch. The two inner sidewalls of the placement slot adjacent to the notch slide against the circuit board. The circuit board continues to slide until the inner sidewalls of the placement slot opposite the notch abut against the circuit board. Then the placement plate is lifted. During this process, when the circuit board slides towards the notch, the top of the circuit board first contacts the guide ramp at the bottom of the bump. As the placement plate is lifted, the guide ramp of the bump pushes the circuit board back to its original position until it abuts against the inner sidewalls of the placement slot opposite the notch again. At this time, the sidewall of the bump abuts against the circuit board.

[0021] The above setup allows workers to easily place circuit boards into the placement slots, and also enables the bumps to correct the circuit boards during the lifting process, ensuring the quality of the milled slots.

[0022] In this invention, the vertical projection of the operating groove is within the vertical projection range of the placement groove. This arrangement ensures that the pressure plate can firmly press the circuit board.

[0023] In this invention, the displacement assembly includes an X-axis linear module and a Y-axis linear module. The X-axis linear module is mounted on top of the frame, the Y-axis linear module is mounted on the X-axis linear module, and the first motor is mounted on the Y-axis linear module. With this configuration, the first motor can be moved horizontally, thereby milling grooves in the circuit board. Attached Figure Description

[0024] Figure 1 This is an isometric view of the overall structure of this utility model;

[0025] Figure 2 Disassembly of the components of this utility model Figure 1 ;

[0026] Figure 3 Disassembly of the components of this utility model Figure 2 ;

[0027] Figure 4 Disassembly of the components of this utility model Figure 3 ;

[0028] Figure 5 This is a cross-sectional view of the pressure plate of this utility model. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0030] The reference numerals in the accompanying drawings include: 10, base; 11, frame; 111, channel; 12, slide; 13, vertical rod; 131, spring; 20, displacement assembly; 21, X-axis linear module; 22, Y-axis linear module; 30, first motor; 31, milling cutter; 40, placement plate; 41, placement slot; 42, notch; 50, lifting mechanism; 51, bidirectional screw; 52, slider; 521, connecting rod; 53, second motor; 60, pressure plate; 61, operating slot; 62, protrusion; 621, guide ramp.

[0031] Example:

[0032] As attached Figure 1-5 As shown, this utility model discloses a circuit board milling device, including a base 10, a displacement component 20, a placement plate 40, and a pressure plate 60. A frame 11 is fixedly installed above the base 10, and the frame 11 has a vertically penetrating channel 111. The displacement component 20 is installed above the frame 11, and a first motor 30 is fixedly installed at the output end of the displacement component 20. A milling cutter 31 is drivenly connected to the bottom of the first motor 30. The placement plate 40 is movably installed above the base 10 and is connected to the base 10 through a lifting mechanism 50. The pressure plate 60 is hung above the placement plate 40 and at the bottom of the frame 11. The pressure plate 60 has a vertically penetrating operating groove 61.

[0033] In this embodiment, the lifting mechanism 50 includes a bidirectional screw 51, a slider 52, and a second motor 53. The top of the base 10 is provided with a slide groove 12. The bidirectional screw 51 is rotatably disposed in the slide groove 12. Two sliders 52 are provided and are symmetrically fitted onto the positive and negative threaded sections of the bidirectional screw 51. The sliders 52 slide against the inner sidewall of the slide groove 12. The tops of the two sliders 52 are respectively rotatably connected to connecting rods 521. The tops of the connecting rods 521 are rotatably connected to the bottom of the placement plate 40. The second motor 53 is fixedly disposed on the sidewall of the base 10 and is drivenly connected to the bidirectional screw 51.

[0034] In this embodiment, vertical rods 13 are fixedly installed at the four corners of the top of the base 10. The top of the vertical rods 13 is fixedly connected to the bottom of the frame 11. The pressure plate 60 and the placement plate 40 are slidably sleeved on each vertical rod 13. A spring 131 is sleeved on the outside of each vertical rod 13. The two ends of the spring 131 are connected to the frame 11 and the pressure plate 60.

[0035] In this embodiment, a placement groove 41 is provided on the top of the placement plate 40.

[0036] In this embodiment, one outer side wall of the placement plate 40 is provided with a notch 42 that communicates with the placement groove 41, and the bottom of the pressure plate 60 is provided with a protrusion 62 that cooperates with the notch 42. The bottom of the protrusion 62 is provided with a guide slope 621 on the side near the placement groove 41.

[0037] In this embodiment, the vertical projection of the operation slot 61 is within the vertical projection range of the placement slot 41.

[0038] In this embodiment, the displacement component 20 includes an X-axis linear module 21 and a Y-axis linear module 22. The X-axis linear module 21 is mounted on the top of the frame 11, the Y-axis linear module 22 is mounted on the X-axis linear module 21, and the first motor 30 is mounted on the Y-axis linear module 22.

[0039] The specific implementation process is as follows:

[0040] The first motor 30 is started to drive the milling cutter 31 to rotate, placing the circuit board on the placement plate 40. The lifting mechanism 50 is then driven to lift the placement plate 40. As the placement plate 40 carries the circuit board upward, the top of the circuit board contacts the bottom of the pressure plate 60 first. As the placement plate 40 continues to be lifted, the spring 131 is compressed and deformed, applying elastic force to the pressure plate 60, pushing the pressure plate 60 to press the circuit board. When the milling cutter 31 extends into the circuit board to a certain depth, the lifting of the placement plate 40 stops, and the displacement component 20 drives the first motor 30 to move, performing milling work on the circuit board within the operating groove 61.

[0041] In the initial state, the placement plate 40 is in a low position, driving the second motor 53 to drive the bidirectional screw 51 to rotate. Because the slide groove 12 restricts the rotation of the slider 52, the slider 52 is displaced as the bidirectional screw 51 rotates. Since the two sliders 52 are located in the positive and negative thread sections of the bidirectional screw 51 respectively, when the bidirectional screw 51 rotates, the two sliders 52 move in opposite directions, thereby pushing the connecting rod 521 to rotate in a more vertical direction, and the placement plate 40 moves upward accordingly.

[0042] The circuit board is pushed into the placement slot 41 through the notch 42. The two inner sidewalls of the placement slot 41 and the notch 42 adjacent to each other slide against the circuit board. The circuit board continues to slide until the inner sidewalls of the placement slot 41 and the notch 42 opposite to each other abut against the circuit board. Then the placement plate 40 is lifted. During this process, when the circuit board slides towards the notch 42, the top of the circuit board first contacts the guide slope 621 at the bottom of the protrusion 62. As the placement plate 40 is lifted, the guide slope 621 of the protrusion 62 pushes the circuit board to reset until it abuts against the inner sidewalls of the placement slot 41 and the notch 42 opposite to each other again. At this time, the sidewall of the protrusion 62 abuts against the circuit board.

[0043] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A circuit board milling device, characterized in that, include: A base, on which a frame is fixedly installed, the frame having a through channel running vertically; A displacement component is disposed above the frame. A first motor is fixedly disposed at the output end of the displacement component, and a milling cutter is connected to the bottom of the first motor. A placement plate, which is movably disposed above the base and connected to the base via a lifting mechanism; The pressure plate is hung above the placement plate at the bottom of the frame, and the pressure plate has an operating groove that runs vertically through it.

2. The circuit board milling device as described in claim 1, characterized in that: The lifting mechanism includes a bidirectional screw, a slider, and a second motor. A groove is provided on the top of the base, and the bidirectional screw is rotatably disposed in the groove. Two sliders are provided and are symmetrically fitted onto the positive and negative thread sections of the bidirectional screw. The sliders slide against the inner sidewall of the groove. The tops of the two sliders are rotatably connected to connecting rods, and the tops of the connecting rods are rotatably connected to the bottom of the placement plate. The second motor is fixedly disposed on the sidewall of the base and is drivenly connected to the bidirectional screw.

3. The circuit board milling device as described in claim 2, characterized in that: Vertical rods are fixedly installed at the four corners of the top of the base. The top of the vertical rods is fixedly connected to the bottom of the frame. The pressure plate and the placement plate are slidably sleeved on each vertical rod. A spring is sleeved on the outside of each vertical rod. The two ends of the spring are connected to the frame and the pressure plate.

4. The circuit board milling device as described in claim 3, characterized in that: The top of the placement plate is provided with a placement groove.

5. The circuit board milling device as described in claim 4, characterized in that: One of the outer side walls of the placement plate is provided with a notch that communicates with the placement groove, and the bottom of the pressure plate is provided with a protrusion that mates with the notch. The bottom of the protrusion is provided with a guide slope near the placement groove.

6. The circuit board milling device as described in claim 5, characterized in that: The vertical projection of the operating slot is within the vertical projection range of the placement slot.

7. The circuit board milling device according to any one of claims 1-6, characterized in that: The displacement assembly includes an X-axis linear module and a Y-axis linear module. The X-axis linear module is mounted on the top of the frame, the Y-axis linear module is mounted on the X-axis linear module, and the first motor is mounted on the Y-axis linear module.

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