Multi-axis synchronous PCB drilling machine main shaft positioning device

Abstract

The application discloses a kind of multi-axis synchronous PCB drilling machine main shaft positioning device, it is related to PCB drilling machine technical field, including fixed disc, the rear side middle part of the fixed disc is fixedly connected with driving motor, the rotating shaft of the driving motor is fixedly connected in the rear end of rotating shaft, the front end of the rotating shaft is fixedly connected with connecting frame, the front side of the connecting frame is fixedly connected with fixed sleeve, the inboard of the fixed sleeve is fixedly connected with laser irradiation pen, the left side of the fixed disc is fixedly connected with fixed frame, the left side of the fixed frame is fixedly connected with laser ranging sensor.The application is adjusted by driving motor, rotating shaft drives connecting frame and laser irradiation pen to carry out angle, ensure that the angle of laser irradiation pen is adjusted smoothly accurate, greatly improve the positioning accuracy before drilling;By laser ranging sensor, the distance of drilling machine main shaft position is measured in real time, when main shaft produces slight deviation, timely send alarm, further guarantee drilling accuracy, reduce positioning deviation.

Description

Technical Field

[0001] This invention relates to the field of PCB drilling machine technology, and in particular to a spindle positioning device for a multi-axis synchronous PCB drilling machine. Background Technology

[0002] In the PCB manufacturing industry, as electronic devices become smaller and more integrated, the hole density on PCBs is increasing, and the requirements for hole diameter accuracy are becoming increasingly stringent. Multi-axis synchronous drilling technology has become a core means to improve processing efficiency and quality. Multi-axis synchronous drilling performs drilling operations on PCBs simultaneously using multiple spindles, which can significantly shorten the processing cycle of a single PCB and meet the needs of large-scale mass production. The key to this technology is to ensure the accuracy and synchronization of the drilling positions of each spindle. It requires not only that the single-axis positioning error be controlled within the micrometer level, but also that the relative positional deviation between multiple axes be minimized. Otherwise, it can easily lead to hole misalignment, short circuits, or open circuits, directly affecting the electrical performance and reliability of the PCB. Therefore, the spindle positioning device of the multi-axis synchronous drilling machine is a core component, and its positioning accuracy, operational stability, and multi-axis coordination capability directly determine the processing quality of the PCB.

[0003] In existing technologies, the spindle positioning devices of multi-axis synchronous drilling machines suffer from insufficient stability of the positioning reference. Some devices use simple clamping structures to fix the laser positioning components, which are prone to loosening under high-speed operation or vibration environments, causing the laser irradiation point to shift and making it difficult to guarantee positioning accuracy. The angle adjustment mechanism is poorly designed, and the common rotating structure lacks effective guidance and support, which easily causes shaking or jamming during adjustment, resulting in poor angle synchronization between multiple axes and affecting the consistency of hole positions. Therefore, it is necessary to design a spindle positioning device for multi-axis synchronous PCB drilling machines to solve the above-mentioned problems. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a multi-axis synchronous PCB drilling machine spindle positioning device.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a multi-axis synchronous PCB drilling machine spindle positioning device, including a fixed plate, a drive motor fixedly connected to the middle of the rear side of the fixed plate, the rotating shaft of the drive motor fixedly connected to the rear end of the rotating shaft, a connecting frame fixedly connected to the front end of the rotating shaft, a fixed sleeve fixedly connected to the front side of the connecting frame, a laser irradiation pen fixedly connected to the inner side of the fixed sleeve, a fixed frame fixedly connected to the left side of the fixed plate, and a laser ranging sensor fixedly connected to the left side of the fixed frame; The drive motor and rotating shaft are used to drive the connecting frame and the fixed sleeve to rotate, thereby adjusting the irradiation angle of the laser pointer; the connecting frame is used to connect the fixed sleeve to the drive motor and the rotating shaft. The fixing sleeve is used for the fixed installation of the laser irradiation pen; the fixing bracket is used for the fixed installation of the laser rangefinder sensor. The laser irradiation pen is used to irradiate the PCB board with laser light to form an irradiation point and locate the drilling position; the laser range sensor is used to measure the position distance of the drilling machine spindle and issue an alarm when a slight deviation occurs.

[0006] Furthermore, a threaded sleeve is provided at the center of the front side of the fixing sleeve, and a locking bolt is threadedly connected to the inner side of the threaded sleeve.

[0007] Furthermore, rotating columns are fixedly installed on the upper and lower rear sides of the connecting frame, and a rotating groove is provided on the front side of the fixed plate. The rotating columns are rotatably connected to the inner side of the rotating groove.

[0008] Furthermore, a rotating seat is fixedly connected to the center of the front side of the fixed disk, and the rear end of the rotating shaft is rotatably connected to the inner side of the rotating seat.

[0009] Furthermore, a connecting plate is provided at the bottom of the fixing sleeve, and threaded bolts are fixedly connected to the upper and lower rear sides of the connecting plate, and the threaded bolts pass through the bottom of the connecting frame.

[0010] Furthermore, a plurality of connecting posts are fixedly arranged at equal intervals on the bottom of the fixed plate, and a base plate is fixedly connected to the bottom of the plurality of connecting posts.

[0011] The beneficial effects of this invention are as follows: 1. The drive motor and rotating shaft adjust the angle of the connecting frame and laser pointer. Combined with the guiding support of the rotating column and rotating groove, and the stable support of the rotating seat for the rotating shaft, the angle adjustment of the laser pointer is ensured to be smooth and precise. This allows the laser point to accurately align with the preset drilling position on the PCB board, significantly improving the positioning accuracy before drilling. Simultaneously, the secure locking of the fixing sleeve to the laser pointer and the stable connection between the fixing sleeve and the connecting frame further ensure the stability of the positioning reference, providing accurate positional reference for multi-axis synchronous drilling. The laser range sensor measures the distance to the drilling machine spindle in real time, issuing an alarm promptly when the spindle deviates slightly, facilitating quick adjustments by the operator. This process monitoring further ensures drilling accuracy, reduces PCB board scrap due to positioning deviations, and improves production yield.

[0012] The base plate and connecting columns form a stable installation foundation, expanding the support area and reducing the impact of external vibrations. Combined with the rigid connection of threaded bolt fastening and rotating structure guide limit, it effectively reduces shaking and displacement during device operation, ensuring the consistency of the positioning of each spindle when multiple axes work synchronously, and avoiding positioning deviations caused by structural loosening. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the left front side of a multi-axis synchronous PCB drilling machine spindle positioning device.

[0014] Figure 2 This is a three-dimensional structural diagram of the right rear side of a multi-axis synchronous PCB drilling machine spindle positioning device.

[0015] Figure 3 This is a three-dimensional structural diagram of the connecting frame, fixing sleeve, and laser irradiation pen of a multi-axis synchronous PCB drilling machine spindle positioning device.

[0016] Figure 4 This is a three-dimensional structural diagram of a mounting bracket and a laser rangefinder sensor for a multi-axis synchronous PCB drilling machine spindle positioning device.

[0017] Figure 5 This is a three-dimensional structural diagram of a spindle positioning device for a multi-axis synchronous PCB drilling machine, including a fixed plate, connecting column, and base plate.

[0018] In the diagram: 1. Fixed plate; 2. Drive motor; 3. Rotating shaft; 4. Connecting frame; 5. Fixed sleeve; 6. Laser irradiation pen; 7. Fixed frame; 8. Laser rangefinder sensor; 9. Threaded sleeve; 10. Locking bolt; 11. Rotating column; 12. Rotating groove; 13. Rotating seat; 14. Connecting plate; 15. Threaded bolt; 16. Connecting column; 17. Base plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-5 The present invention provides a technical solution: a multi-axis synchronous PCB drilling machine spindle positioning device, including a fixed plate 1, a drive motor 2 fixedly connected to the middle of the rear side of the fixed plate 1, the rotating shaft of the drive motor 2 fixedly connected to the rear end of the rotating shaft 3, a connecting frame 4 fixedly connected to the front end of the rotating shaft 3, a fixing sleeve 5 fixedly connected to the front side of the connecting frame 4, a laser irradiation pen 6 fixedly connected to the inner side of the fixing sleeve 5, a fixing frame 7 fixedly connected to the left side of the fixed plate 1, and a laser range sensor 8 fixedly connected to the left side of the fixing frame 7. The drive motor 2 and the rotating shaft 3 are used to drive the connecting frame 4 and the fixed sleeve 5 to rotate, thereby adjusting the irradiation angle of the laser irradiation pen 6; the connecting frame 4 is used to connect the fixed sleeve 5 to the drive motor 2 and the rotating shaft 3. The fixing sleeve 5 is used for fixing the laser irradiation pen 6; the fixing bracket 7 is used for fixing the laser range sensor 8. The laser irradiation pen 6 is used to irradiate the PCB board with laser light to form an irradiation point and locate the drilling position; the laser range sensor 8 is used to measure the position distance of the positioning drilling machine spindle and issue an alarm when a slight deviation occurs.

[0021] A threaded sleeve 9 is provided in the middle of the front side of the fixed sleeve 5. A locking bolt 10 is connected to the inner thread of the threaded sleeve 9. By tightening the locking bolt 10, the laser irradiation pen 6 can be tightly fixed in the fixed sleeve 5 to prevent it from loosening or shifting due to vibration or other factors during the operation of the device, thus ensuring the stability of the laser irradiation direction and the accuracy of the positioning reference.

[0022] Rotating columns 11 are fixedly installed on the upper and lower rear sides of the connecting frame 4, and a rotating groove 12 is provided on the front side of the fixed plate 1. The rotating columns 11 are rotatably connected to the inner side of the rotating groove 12, providing guidance and support for the rotation of the connecting frame 4, limiting the radial displacement of the connecting frame 4, reducing the shaking during the rotation process, making the angle adjustment of the laser irradiation pen 6 more stable and precise, and improving the control accuracy of the positioning angle.

[0023] A rotating seat 13 is fixedly connected to the front center of the fixed plate 1. The rear end of the rotating shaft 3 is rotatably connected to the inner side of the rotating seat 13, which enhances the support stability of the rotating shaft 3 when it rotates, reduces the deflection of the rotating shaft 3 caused by the cantilever force, avoids radial runout during power transmission, and ensures the angle adjustment accuracy of the connecting frame 4 and the laser irradiation pen 6.

[0024] The bottom of the fixed sleeve 5 is provided with a connecting plate 14. The upper and lower parts of the rear side of the connecting plate 14 are fixedly connected with threaded bolts 15. The threaded bolts 15 pass through the bottom of the connecting frame 4. Through the fastening action of the threaded bolts 15, the fixed sleeve 5 and the connecting frame 4 are firmly connected as one, preventing relative displacement between the two, ensuring the relative position stability of the laser irradiation pen 6 and the connecting frame 4, and further improving the overall rigidity of the positioning structure.

[0025] Several connecting columns 16 are fixedly installed at equal intervals on the bottom of the fixed plate 1. The bottom of the connecting columns 16 is fixedly connected to the base plate 17, providing a stable installation foundation for the entire device. The support of the connecting columns 16 ensures that the fixed plate 1 and the installation surface maintain a reasonable distance, reducing the impact of external vibration on the device. At the same time, the base plate 17 expands the support area, enhances the overall anti-overturning ability of the device, and ensures that all components operate smoothly.

[0026] Working principle: First, the laser pointer 6 is fixed to the corresponding station of the PCB drilling machine via the base plate 17 and bottom connecting column 16 to ensure overall structural stability. Then, during operation, the laser pointer 6 is pre-installed and fixed via the fixing sleeve 5. The threaded sleeve 9 on the front side of the fixing sleeve 5 cooperates with the locking bolt 10 to secure the laser pointer 6 and prevent it from shifting during operation. Simultaneously, the fixing sleeve 5 is fixed to the connecting frame 4 via the threaded bolt 15 of the bottom connecting plate 14, ensuring the relative position stability between the laser pointer 6 and the connecting frame 4. Next, when it is necessary to locate the drilling position on the PCB board, the drive motor 2 starts, and its power is transmitted to the connecting frame 4 via the rotating shaft 3. At this time, the rotating column 11 on the upper and lower rear side of the connecting frame 4 rotates along the rotating groove 12 on the front side of the fixing plate 1. The rotating shaft 3 rotates stably within the rotating seat 13 in the middle of the fixed plate 1, ensuring that the connecting frame 4 drives the fixed sleeve 5 and the laser irradiation pen 6 to make smooth angle adjustments until the laser emitted by the laser irradiation pen 6 is accurately projected onto the preset drilling position on the PCB board, forming a clear irradiation point and completing the initial positioning. Further, during the operation of the drilling machine spindle, the laser range sensor 8 on the fixed frame 7 measures the distance of the spindle position in real time and compares the measurement data with the preset drilling position parameters. If the spindle position deviates slightly due to factors such as equipment vibration and assembly errors, the laser range sensor 8 will immediately issue an alarm to prompt the operator to make timely adjustments, thereby ensuring the positioning accuracy during multi-axis synchronous drilling and ensuring the drilling quality of the PCB board.

[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-axis synchronous PCB drilling machine spindle positioning device, comprising a fixed plate (1), characterized in that, A drive motor (2) is fixedly connected to the middle of the rear side of the fixed disk (1). The shaft of the drive motor (2) is fixedly connected to the rear end of the rotating shaft (3). A connecting frame (4) is fixedly connected to the front end of the rotating shaft (3). A fixing sleeve (5) is fixedly connected to the front side of the connecting frame (4). A laser irradiation pen (6) is fixedly connected to the inner side of the fixing sleeve (5). A fixing frame (7) is fixedly connected to the left side of the fixed disk (1). A laser rangefinder sensor (8) is fixedly connected to the left side of the fixing frame (7). The drive motor (2) and the rotating shaft (3) are used to drive the connecting frame (4) and the fixing sleeve (5) to rotate, and to adjust the irradiation angle of the laser irradiation pen (6); the connecting frame (4) is used to connect the fixing sleeve (5) with the drive motor (2) and the rotating shaft (3); The fixing sleeve (5) is used for the fixed installation of the laser irradiation pen (6); the fixing bracket (7) is used for the fixed installation of the laser range sensor (8); The laser irradiation pen (6) is used to irradiate the PCB board with laser to form an irradiation point and locate the drilling position; the laser range sensor (8) is used to measure the position distance of the positioning drilling machine spindle and issue an alarm when a slight deviation occurs.

2. The multi-axis synchronous PCB drilling machine spindle positioning device according to claim 1, characterized in that: A threaded sleeve (9) is provided at the middle of the front side of the fixed sleeve (5), and a locking bolt (10) is threadedly connected to the inner side of the threaded sleeve (9).

3. The multi-axis synchronous PCB drilling machine spindle positioning device according to claim 1, characterized in that: The rear upper and lower parts of the connecting frame (4) are fixedly provided with rotating columns (11), and the front side of the fixed plate (1) is provided with a rotating groove (12). The rotating columns (11) are rotatably connected to the inner side of the rotating groove (12).

4. The multi-axis synchronous PCB drilling machine spindle positioning device according to claim 1, characterized in that: A rotating seat (13) is fixedly connected to the middle of the front side of the fixed disk (1), and the rear end of the rotating shaft (3) is rotatably connected to the inner side of the rotating seat (13).

5. The multi-axis synchronous PCB drilling machine spindle positioning device according to claim 1, characterized in that: The bottom of the fixed sleeve (5) is provided with a connecting plate (14), and the upper and lower parts of the rear side of the connecting plate (14) are fixedly connected with threaded bolts (15), and the threaded bolts (15) pass through the bottom of the connecting frame (4).

6. The multi-axis synchronous PCB drilling machine spindle positioning device according to claim 1, characterized in that: The bottom of the fixed plate (1) is fixedly provided with a number of connecting posts (16) at equal intervals, and the bottom of the number of connecting posts (16) is fixedly connected with a base plate (17).

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