A circuit board blind slot processing device
By combining automatic clamping components and infrared sensors, the problem of inaccurate manual clamping in the blind slot processing of circuit boards is solved, achieving stable clamping and efficient processing of circuit boards, and improving processing accuracy and product qualification rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN RUIBANG MULTILAYER PCB TECH LTD
- Filing Date
- 2025-10-11
- Publication Date
- 2026-08-04
AI Technical Summary
Existing blind slot drilling equipment for circuit boards relies on manual clamping, which is cumbersome, time-consuming, and labor-intensive. Inaccurate clamping can easily lead to circuit board displacement or damage, affecting processing accuracy and product qualification rate.
An automatic clamping assembly, combined with infrared and pressure sensors, enables bidirectional automatic clamping of the circuit board in both the horizontal and vertical directions. The infrared sensor detects the position, and the pressure sensor monitors the clamping force to ensure accurate clamping and avoid excessively loose or tight clamping.
It enables automated clamping of circuit boards, improving clamping efficiency and precision, preventing displacement and damage of circuit boards during processing, and enhancing product quality.
Smart Images

Figure CN224596684U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circuit board processing technology, and in particular to a circuit board blind slot processing device. Background Technology
[0002] A circuit board, also known as a printed circuit board (PCB), is a core planar medium used in electronic devices to connect electronic components. It mainly consists of an insulating substrate (such as FR4 fiberglass board) and conductive lines (copper foil). Complex circuit patterns are formed through processes such as etching and drilling to enable signal transmission and power supply between electronic components. Blind slot fabrication is a crucial step in the PCB manufacturing process. Blind slots, as groove structures that only penetrate a portion of the PCB's thickness, require specialized drilling equipment for fabrication.
[0003] In practical use, existing circuit board blind slot drilling equipment relies heavily on manual operation for clamping and fixing circuit boards. Operators need to manually adjust the position of the circuit board and fix it with clamps. This is not only cumbersome, time-consuming, and labor-intensive, but also difficult to control the clamping force precisely. If the clamping is too loose, the circuit board may shift during processing, affecting the accuracy of blind slot processing. In addition, if the clamping is too tight, it may cause deformation of the circuit board substrate or damage to the copper foil, reducing the product qualification rate.
[0004] To address the aforementioned problems, this utility model proposes a circuit board blind slot processing device. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a circuit board blind slot processing device, which solves the problems mentioned in the background.
[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a circuit board blind slot processing device, including a base, a gantry frame is provided on the outside of the base, a control circuit board is provided inside the base, a Y-axis moving mechanism is provided at the upper end of the base, a moving placement plate is provided at the output end of the Y-axis moving mechanism, and a clamping component is provided at the upper end of the moving placement plate.
[0007] An X-axis moving mechanism is provided in the middle of the gantry frame. A support plate is provided at the output end of the X-axis moving mechanism. A pressing cylinder is provided on one side of the support plate. A support seat is provided at the output end of the pressing cylinder. A drilling motor is installed at the upper end of the support seat.
[0008] The clamping assembly includes an auxiliary plate, a first clamping cylinder mounted on one side of the auxiliary plate, a first pressure sensor mounted on the output end of the first clamping cylinder, a first clamping plate mounted on one side of the first pressure sensor, a first guide rod mounted on one side of the first clamping plate, a first infrared sensor mounted inside the first clamping plate, a second clamping cylinder mounted on the upper end of the first clamping plate, a second pressure sensor mounted on the output end of the second clamping cylinder, a second clamping plate mounted on one side of the second pressure sensor, a second infrared sensor mounted on the bottom of the second clamping plate, and a second guide rod mounted on the upper end of the second clamping plate.
[0009] The first infrared sensor, the second infrared sensor, the first pressure sensor, and the second pressure sensor are all electrically connected to the control circuit board.
[0010] As a further technical solution of this utility model, the base and the gantry are fixedly connected, the output end of the Y-axis moving mechanism is connected to the moving placement plate by bolts, and the number of clamping components is two sets, which are symmetrically distributed on the upper end of the moving placement plate.
[0011] As a further technical solution of this utility model, a guide hole is provided in the middle of the auxiliary plate. The guide hole is adapted to the size of the first guide rod, and the first guide rod can slide along the guide hole.
[0012] As a further technical solution of this utility model, a second guide hole is provided at the upper end of the first clamping plate. The second guide hole is adapted to the size of the second guide rod, and the second guide rod can slide along the second guide hole.
[0013] As a further technical solution of this utility model, a display screen, a power switch and control buttons are also installed on the outside of the base, and support legs are installed at the bottom of the base.
[0014] As a further technical solution of this utility model, the output end of the Y-axis moving mechanism is connected to the moving placement plate by bolts, the output end of the X-axis moving mechanism is connected to the support plate by bolts, the pressing cylinder is connected to the support plate by bolts, and the support base is connected to the drilling motor by bolts.
[0015] As a further technical solution of this utility model, the auxiliary plate and the movable placement plate are fixedly connected, the output end of the first clamping cylinder is connected to the detection end of the first pressure sensor, and the first pressure sensor and the first clamping plate are fixedly connected.
[0016] The output end of the second clamping cylinder is connected to the detection end of the second pressure sensor, and the second pressure sensor and the second clamping plate are fixedly connected.
[0017] This utility model provides a device for processing blind slots on circuit boards. Compared with the prior art, it has the following advantages:
[0018] This design discloses a circuit board blind slot processing device. Through two sets of symmetrical clamping components, combined with the cooperation of a first clamping cylinder and a second clamping cylinder, it can realize bidirectional automatic clamping of circuit boards in both horizontal and vertical directions, replacing traditional manual operation, significantly saving labor costs and improving clamping efficiency. Moreover, the cooperation of the first infrared sensor and the second infrared sensor can accurately detect the position of the circuit board, ensuring that the clamping components operate at the correct timing. In addition, the first pressure sensor and the second pressure sensor can monitor the clamping pressure in real time. When the pressure reaches the preset value, the control circuit board immediately controls the clamping cylinder to stop operating, avoiding clamping that is too loose or too tight. This ensures that the circuit board does not shift during processing and prevents damage to the circuit board. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a circuit board blind slot processing device;
[0020] Figure 2 This is a side view of a circuit board blind slot processing device;
[0021] Figure 3 This is a front view of a circuit board blind slot processing device;
[0022] Figure 4 This is a partial structural schematic diagram of a circuit board blind slot processing device.
[0023] In the diagram: 1. Base; 2. Gantry frame; 3. Y-axis moving mechanism; 4. Moving placement plate; 5. Clamping assembly; 51. Auxiliary plate; 52. First clamping cylinder; 53. First pressure sensor; 54. First clamping plate; 55. First guide rod; 56. First infrared sensor; 57. Second clamping cylinder; 58. Second clamping plate; 59. Second infrared sensor; 510. Second guide rod; 6. X-axis moving mechanism; 7. Support plate; 8. Pressing cylinder; 9. Support base; 10. Drilling motor; 11. Display screen; 12. Power switch; 13. Control button; 14. Support leg. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all 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 protection scope of the present utility model.
[0025] Please see Figure 1-4 This utility model provides a technical solution for a circuit board blind slot processing device: A circuit board blind slot processing device includes a base 1, a gantry frame 2 is provided on the outside of the base 1, a control circuit board is provided inside the base 1, a Y-axis moving mechanism 3 is provided at the upper end of the base 1, a moving placement plate 4 is provided at the output end of the Y-axis moving mechanism 3, a clamping assembly 5 is provided at the upper end of the moving placement plate 4, an X-axis moving mechanism 6 is provided in the middle of the gantry frame 2, a support plate 7 is provided at the output end of the X-axis moving mechanism 6, a pressing cylinder 8 is provided on one side of the support plate 7, a support seat 9 is provided at the output end of the pressing cylinder 8, and a drilling motor 10 is installed at the upper end of the support seat 9;
[0026] The clamping assembly 5 includes an auxiliary plate 51. A first clamping cylinder 52 is mounted on one side of the auxiliary plate 51. A first pressure sensor 53 is provided at the output end of the first clamping cylinder 52. A first clamping plate 54 is mounted on one side of the first pressure sensor 53. A first guide rod 55 is mounted on one side of the first clamping plate 54. A first infrared sensor 56 is installed inside the first clamping plate 54. A second clamping cylinder 57 is mounted on the upper end of the first clamping plate 54. A second pressure sensor is provided at the output end of the second clamping cylinder 57. A second clamping plate 58 is provided on one side of the second pressure sensor. A second infrared sensor 59 is provided at the bottom of the second clamping plate 58. A second guide rod 510 is provided at the upper end of the second clamping plate 58.
[0027] like Figure 1-3 As shown, a display screen 11 is installed on one side of the gantry frame 2, and a power switch 12, control button 13, and support leg 14 are installed on the outside of the base 1. The base 1 and the gantry frame 2 are fixedly connected. The output end of the Y-axis moving mechanism 3 is connected to the moving placement plate 4 by bolts. There are two sets of clamping components 5, which are symmetrically distributed. The output end of the X-axis moving mechanism 6 is connected to the support plate 7 by bolts. The pressing cylinder 8 is connected to the support plate 7 by bolts. The support seat 9 is connected to the drilling motor 10 by bolts, which facilitates the blind slot processing operation of the circuit board.
[0028] like Figure 4As shown, the auxiliary plate 51 and the movable placement plate 4 are fixedly connected. The first clamping cylinder 52 is connected to the auxiliary plate 51 by bolts. The output end of the first clamping cylinder 52 is connected to the detection end of the first pressure sensor 53. The first pressure sensor 53 is fixedly connected to the first clamping plate 54. The first guide rod 55 is fixedly connected to the first clamping plate 54. The middle part of the auxiliary plate 51 has a guide hole that matches the first guide rod 55. The output end of the second clamping cylinder 57 is connected to the detection end of the second pressure sensor. The second pressure sensor is fixedly connected to the second clamping plate 58. The second infrared sensor 59 and the first infrared sensor 56 are both electrically connected to the control circuit board. The second guide rod 510 is fixedly connected to the second clamping plate 58. The upper end of the first clamping plate 54 has a guide hole that matches the second guide rod 510. This facilitates multi-directional automatic clamping and positioning of the circuit board and maintains its stability during the blind slotting process.
[0029] The working principle of this utility model is as follows: the operator turns on the main power of the device through the power switch 12. At this time, the display screen 11 lights up and displays the device initialization status. The blind groove processing parameters, such as clamping pressure threshold, processing position coordinates, blind groove depth, etc., are set through the control button 13. After the parameters are set, they are stored in the control circuit board.
[0030] The circuit board to be processed is then placed stably on the upper end of the movable placement plate 4, ensuring that the edge of the circuit board is roughly between the two sets of clamping components 5. During lateral clamping, the first infrared sensor 56 detects the change in distance between the circuit board and itself and transmits the signal to the control circuit board. The control circuit board immediately controls the piston rods of the two sets of first clamping cylinders 52 to extend synchronously, driving the first pressure sensor 53 and the first clamping plate 54 to move towards the circuit board. During this process, the first guide rod 55 slides along the guide hole on the auxiliary plate 51 to ensure that the first clamping plate 54 moves horizontally. When the first clamping plate 54 contacts the edge of the circuit board, the first pressure sensor 53 detects the clamping pressure and transmits it to the control circuit board in real time. When the pressure reaches the preset threshold, the control circuit board controls the first clamping cylinder 52 to stop moving, completing the lateral clamping.
[0031] After horizontal clamping is completed, the second infrared sensor 59 detects the change in distance between the circuit board and itself, and transmits the signal to the control circuit board. The control circuit board controls the piston rods of the two sets of second clamping cylinders 57 to extend synchronously, driving the second pressure sensor and the second clamping plate 58 to move towards the upper surface of the circuit board. The second guide rod 510 slides along the guide hole 2 on the first clamping plate 54 to ensure the vertical stable movement of the second clamping plate 58. When the second clamping plate 58 contacts the upper surface of the circuit board, the second pressure sensor detects the vertical pressure and transmits it to the control circuit board. When the pressure reaches the preset threshold, the control circuit board controls the second clamping cylinder 57 to stop moving, completing the vertical clamping. At this time, the circuit board is completely fixed and there is no risk of displacement.
[0032] Furthermore, according to the preset processing position coordinates, the control circuit board first controls the output end of the X-axis moving mechanism 6 to drive the support plate 7, the pressing cylinder 8, the support seat 9 and the drilling motor 10 to move along the X-axis to directly above the target processing position. Then, it controls the output end of the Y-axis moving mechanism 3 to drive the moving placement plate 4, the clamping assembly 5 and the circuit board to move along the Y-axis, so that the processing point of the circuit board is aligned with the drill bit of the drilling motor 10.
[0033] After the position adjustment is completed, the control circuit board starts the drilling motor 10, and the drill bit rotates at high speed. At the same time, it controls the piston rod of the pressing cylinder 8 to slowly extend, driving the support base 9 and the drilling motor 10 to descend synchronously. The drill bit gradually contacts the circuit board and performs blind groove processing. When the extension length of the piston rod of the pressing cylinder 8 reaches the preset value, the control circuit board controls the piston rod of the pressing cylinder 8 to stop extending, and keeps the drilling motor 10 running for a preset time to ensure that the blind groove is formed. Then, it controls the piston rod of the pressing cylinder 8 to retract, driving the drilling motor 10 to rise and reset. At the same time, the drilling motor 10 stops running, completing the processing of a single blind groove. If multiple blind grooves need to be processed, the control circuit board repeats the above position adjustment and drilling steps until all blind grooves are processed.
[0034] After all blind slots are processed, the control circuit board controls the piston rod of the second clamping cylinder 57 to retract, releasing the vertical clamping. Then, it controls the piston rod of the first clamping cylinder 52 to retract, releasing the horizontal clamping. The operator removes the processed circuit board from the moving placement plate 4. Finally, the control circuit board controls the X-axis moving mechanism 6 and the Y-axis moving mechanism 3 to reset to their initial positions, waiting for the next processing.
[0035] Finally, after all processing tasks are completed, the operator disconnects the main power supply to the device via power switch 12, cleans the waste material on the surface of the device, such as drilling debris, and completes the operation.
[0036] It should be noted that the internal structures of the X-axis moving mechanism 6 and the Y-axis moving mechanism 3, which are not specifically described in this utility model, such as the specific models and circuit connection methods of the motor, lead screw, slider, etc., and the control circuit board, are all implemented using conventional technical means in this field; the first infrared sensor 56 and the second infrared sensor 59 can be diffuse reflection infrared sensors, and the first pressure sensor 53 and the second pressure sensor can be miniature strain gauge pressure sensors. Their models can be flexibly selected according to actual needs, as long as they can achieve the corresponding detection function.
[0037] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.
Claims
1. A circuit board blind slot processing device, comprising a base (1), characterized in that, A gantry frame (2) is provided on the outside of the base (1), a control circuit board is provided inside the base (1), a Y-axis moving mechanism (3) is provided at the upper end of the base (1), a moving placement plate (4) is provided at the output end of the Y-axis moving mechanism (3), and a clamping assembly (5) is provided at the upper end of the moving placement plate (4). The gantry (2) is provided with an X-axis moving mechanism (6) in the middle. The output end of the X-axis moving mechanism (6) is provided with a support plate (7). A pressing cylinder (8) is provided on one side of the support plate (7). A support seat (9) is provided at the output end of the pressing cylinder (8). A drilling motor (10) is installed at the upper end of the support seat (9). The clamping assembly (5) includes an auxiliary plate (51), a first clamping cylinder (52) is installed on one side of the auxiliary plate (51), a first pressure sensor (53) is provided at the output end of the first clamping cylinder (52), a first clamping plate (54) is installed on one side of the first pressure sensor (53), a first guide rod (55) is installed on one side of the first clamping plate (54), a first infrared sensor (56) is installed inside the first clamping plate (54), a second clamping cylinder (57) is installed at the upper end of the first clamping plate (54), a second pressure sensor is provided at the output end of the second clamping cylinder (57), a second clamping plate (58) is provided on one side of the second pressure sensor, a second infrared sensor (59) is provided at the bottom of the second clamping plate (58), and a second guide rod (510) is provided at the upper end of the second clamping plate (58). The first infrared sensor (56), the second infrared sensor (59), the first pressure sensor (53), and the second pressure sensor are all electrically connected to the control circuit board.
2. The circuit board blind slot processing device according to claim 1, characterized in that, The base (1) and the gantry (2) are fixedly connected. The output end of the Y-axis moving mechanism (3) is connected to the moving placement plate (4) by bolts. The clamping components (5) are in two sets and are symmetrically distributed on the upper end of the moving placement plate (4).
3. The circuit board blind slot processing device according to claim 1, characterized in that, The auxiliary plate (51) has a guide hole in the middle, which is adapted to the size of the first guide rod (55), and the first guide rod (55) can slide along the guide hole.
4. The circuit board blind slot processing device according to claim 1, characterized in that, The upper end of the first clamping plate (54) is provided with a guide hole II, which is adapted to the size of the second guide rod (510), and the second guide rod (510) can slide along the guide hole II.
5. The circuit board blind slot processing device according to claim 1, characterized in that, The base (1) is also equipped with a display screen (11), a power switch (12) and a control button (13) on its outer side, and a support leg (14) is installed at the bottom of the base (1).
6. The circuit board blind slot processing device according to claim 1, characterized in that, The output end of the Y-axis moving mechanism (3) is connected to the moving placement plate (4) by bolts, the output end of the X-axis moving mechanism (6) is connected to the support plate (7) by bolts, the pressing cylinder (8) is connected to the support plate (7) by bolts, and the support seat (9) is connected to the drilling motor (10) by bolts.
7. The circuit board blind slot processing device according to claim 1, characterized in that, The auxiliary plate (51) and the movable placement plate (4) are fixedly connected. The output end of the first clamping cylinder (52) is connected to the detection end of the first pressure sensor (53). The first pressure sensor (53) and the first clamping plate (54) are fixedly connected. The output end of the second clamping cylinder (57) is connected to the detection end of the second pressure sensor, and the second pressure sensor is fixedly connected to the second clamping plate (58).