A production device and method for a PCB board for a safety grating

Abstract

The application relates to the technical field of PCB production equipment, in particular to a PCB production device and method for safety gratings, which comprises a clamping assembly used for clamping a PCB, the clamping assembly is installed on a chain assembly; two rotating fixing assemblies are respectively located on the two sides of the chain assembly and are used for synchronously fixing the PCB; the rotating fixing assemblies are connected with the chain assembly through a synchronous assembly; a drilling assembly is located above the rotating fixing assembly and is connected with a gantry through a lifting assembly. The application is beneficial to rapid automatic drilling and improves the production efficiency of the PCB.

Description

Technical Field

[0001] This invention relates to the field of PCB board manufacturing equipment technology, and in particular to a PCB board manufacturing apparatus and method for safety light curtains. Background Technology

[0002] In the PCB manufacturing industry, the grating ruler is the core sensing element of a precision displacement measurement device, and its installation accuracy directly determines the resolution and reliability of the entire measurement system. To achieve the electrical connection between the grating ruler and the subsequent signal processing circuit, the PCB board that carries the grating needs to have mounting holes in specific locations to allow for the subsequent soldering or insertion of electronic components such as photoelectric conversion chips, amplifier circuit components, and interface connectors.

[0003] In current PCB manufacturing processes, mounting holes on PCBs are primarily machined using a traditional mold-fixed drilling method. This involves operators placing the PCB blanks one by one into the positioning slots of a dedicated drilling mold, clamping them in place using mechanical fixtures or vacuum suction devices, and then starting the drilling machine to drill single holes or arrays of holes. With this method, after drilling each PCB, the machine must be stopped, the clamping removed, and the blank manually replaced. This clamping and unclamping process consumes a significant amount of non-processing time, reducing PCB production efficiency.

[0004] Therefore, those skilled in the art are dedicated to developing a PCB board production device and method for safety light curtains, which facilitates rapid automatic drilling and improves the production efficiency of PCB boards. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a production device and method for PCB boards for safety light curtains, which facilitates rapid automatic drilling and improves the production efficiency of PCB boards.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a PCB board production apparatus for safety light curtains, comprising... A clamping assembly for clamping a PCB board, the clamping assembly being mounted on a chain assembly; A rotating fixing assembly, two of which are respectively located on both sides of the chain assembly and used to synchronously fix the PCB board, the rotating fixing assembly being connected to the chain assembly via a synchronization assembly; A drilling assembly, which is located above the rotating and fixing assembly and connected to a gantry frame via a lifting assembly.

[0007] The beneficial effects of adopting the above solution are: by cooperating with the clamping component and the chain component, the PCB board can be continuously and automatically transported. At the same time, the rotating fixing component is used to synchronously fix the PCB board at the drilling station, ensuring the synchronicity and continuity of the transport and clamping, and ensuring that the PCB board is stable and does not shift during the drilling process. With the drilling component driven by the lifting component, the efficient and automated drilling process of the PCB board can be achieved, and the production efficiency of PCB boards for safety light curtains can be improved.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the clamping assembly includes a connecting block and clamping members. The connecting block is connected to the chain assembly, and the ends of the two clamping members are located in sliding grooves on the connecting block. The two clamping members are connected by a tension spring. The clamping member has an arc-shaped limiting boss, and a buffer pad is also installed on the connecting block.

[0010] The beneficial effect of adopting the above-mentioned further solution is that by using two clamping parts connected by a tension spring, the elastic restoring force of the tension spring is used to achieve adaptive clamping of the PCB board, and clamping can be completed quickly without an additional power source. The arc-shaped limiting boss is used to limit and lock the PCB board to prevent it from falling off. The buffer pad can absorb the impact force during the clamping process, avoid damage to the PCB board surface and reduce drill bit damage. The overall structure is simple and compact, and the clamping is fast and reliable.

[0011] Furthermore, the chain assembly includes a first conveyor chain and a second conveyor chain, and the clamping assembly is mounted on the first conveyor chain and the second conveyor chain. The two ends of the first conveyor chain and the second conveyor chain are mounted on the base plate through sprockets and mounting brackets. One of the sprockets is connected to a servo power component via a connecting shaft. The rotation of the servo power component drives the first conveyor chain and the second conveyor chain to rotate.

[0012] The beneficial effects of adopting the above-mentioned further solution are: the first conveyor chain and the second conveyor chain are driven to operate synchronously by the same servo power component, which ensures the stability and synchronization of the clamping component operation and avoids the PCB board from tilting or shaking during the conveying process. The servo power component is used to precisely control the intermittent conveying distance of the first conveyor chain and the second conveyor chain.

[0013] Furthermore, the rotating fixing assembly includes a rotating disk on which a plurality of evenly arranged fixing members are mounted. The fixing members are used to fit into the positioning grooves on the sidewall of the PCB board. The rotating disk is connected to the chain assembly through the synchronization assembly. When the servo power component rotates, it drives the first conveyor chain and the second conveyor chain to move and drives the rotating disk to rotate synchronously. When the PCB board moves to directly below the drilling component, the two oppositely arranged fixing members are adapted and fixed to the positioning grooves on both sides of the PCB board.

[0014] The beneficial effects of adopting the above-mentioned further solution are: by using the synchronization component to convert the linear motion of the chain component into the rotational motion of the rotating disk, the PCB board conveying and rotation fixing are linked and coordinated. When the PCB board arrives at the drilling station, the fixing component is just matched and engaged with the positioning groove on the side wall of the PCB board. Automatic positioning and fixing are completed without affecting the normal conveying of the PCB board, without the need for an additional positioning drive device, thereby improving positioning accuracy and processing efficiency.

[0015] Furthermore, the synchronization component includes a rotating support base mounted on a base plate, the rotating support base having a rotating shaft connected to the rotating disk; A first bevel gear is mounted on the rotating shaft. The first bevel gear is meshed with a second bevel gear. The second bevel gear is sequentially connected to an intermediate shaft and a third bevel gear. The third bevel gear is meshed with a fourth bevel gear, which is mounted on the connecting shaft.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the motion transmission between the chain assembly and the rotating fixed assembly is realized through the multi-stage bevel gear transmission mechanism; the meshing transmission structure of the first bevel gear and the second bevel gear, and the third bevel gear and the fourth bevel gear is compact and the transmission ratio is stable; the rotating support provides reliable support for the rotating disk, ensuring that the fixed part maintains precise positional accuracy during rotation, thereby achieving accurate matching with the positioning groove of the PCB board.

[0017] Furthermore, the drilling assembly includes a lifting frame on which multiple drilling tools are mounted, and the lifting frame is mounted on the lifting assembly.

[0018] The beneficial effect of adopting the above-mentioned further solution is that by integrating multiple drills and installing them on the lifting frame, multiple holes can be drilled simultaneously on the PCB board at one time.

[0019] Furthermore, the lifting assembly includes a mounting plate, which is mounted on a gantry frame. A slide rail is mounted on the mounting plate, and a slider that cooperates with the slide rail is mounted on the slide rail. The slider is also connected to the lifting frame. The mounting plate is also equipped with a lifting servo motor. The output end of the lifting servo motor is connected to a rotating lead screw. The rotating lead screw is fitted with a lead screw bearing, which is installed on the side wall of the lifting frame.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the guide structure of slide rail and slider provides precise linear guidance for the up and down movement of the lifting frame, ensuring the feed accuracy of the drill in the vertical direction.

[0021] Furthermore, the lifting frame is also equipped with a purge nozzle and an industrial camera, and the industrial camera is electrically connected to a control component.

[0022] The beneficial effect of adopting the above-mentioned further solution is that the blow nozzle can remove cutting debris from the hole and the board surface in a timely manner during or after drilling, so as to avoid the debris affecting the drilling quality or scratching the PCB board surface. Industrial cameras capture PCB board images in real time and transmit them to control components for visual inspection, enabling online monitoring of drilling positions, hole diameters, and board surface defects. This facilitates timely detection and adjustment of processing anomalies, ensuring consistent and reliable product quality.

[0023] A method for manufacturing a PCB board for a safety light curtain, applied to the PCB board manufacturing apparatus for a safety light curtain as described above, includes the following steps: S100. The feeding robot clamps the PCB board and places it on the clamping assembly so that the two clamping parts hold the PCB board; S200. When the servo power component rotates, it drives the first conveyor chain, the second conveyor chain, and the clamping component to move and drives the rotating disk to rotate synchronously. When the PCB board on the clamping component moves to directly below the drilling component, the two oppositely arranged fixing parts are adapted to and fixed with the positioning grooves on both sides of the PCB board and maintain the clamping state. S300. The forward rotation of the lifting servo motor drives the lifting frame to move downward, so that the drill on the lifting frame drills a hole on the PCB board. After the lifting servo motor rotates in the reverse direction, it drives the lifting frame to move upward and reset. The S400 unloading robot is used to pick up drilled PCBs and move them to the next workstation.

[0024] The beneficial effects of adopting the above-mentioned further solution are: through the process of automatic feeding by the feeding robot, continuous conveying by the chain assembly, automatic positioning by the rotating fixing assembly, automatic drilling by the drilling assembly, and automatic unloading by the discharging robot, the production of PCB boards for safety light curtains can be fully automated from clamping to drilling to unloading. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a PCB board production device for safety light curtains in a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the clamping component, chain component, rotation fixing component, and synchronization component in a specific embodiment of the present invention; Figure 3This is a schematic diagram of the drilling assembly structure in a specific embodiment of the present invention.

[0026] The attached diagram lists the components represented by each number as follows: 1. Clamping assembly; 2. PCB board; 3. Chain assembly; 4. Rotation and fixing assembly; 5. Synchronization assembly; 6. Drilling assembly; 7. Lifting assembly; 8. Gantry frame; 9. Connecting block; 10. Clamping component; 11. Buffer pad; 12. First conveyor chain; 13. Second conveyor chain; 14. Sprocket; 15. Connecting shaft; 16. Servo power assembly; 17. Rotary disk; 18. Fixing component; 19. Rotating support base; 20. Rotating shaft; 21. First bevel gear; 22. Second bevel gear; 23. Intermediate shaft; 24. Third bevel gear; 25. Fourth bevel gear; 26. Base plate; 27. Lifting frame; 28. Drill; 29. ​​Mounting plate; 30. Slide rail; 31. Lifting servo motor; 32. Rotating lead screw; 33. Control assembly. Detailed Implementation

[0027] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0028] In the description of this invention, it should be understood that the terms "center," "length," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "inner," "outer," "circumferential," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the system or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, a PCB board manufacturing apparatus for safety light curtains includes... Clamping component 1 is used to clamp PCB board 2 and initially fix PCB board 2 to prevent it from shifting, shaking or falling off during conveying and processing. Clamping component 1 is installed on chain component 3 and moves continuously in a cyclic conveying motion with chain component 3, thereby realizing the uninterrupted feeding, conveying and processing of multiple PCB boards 2, reducing the time occupied by stopping to load and unload in traditional processing methods, and improving the overall processing efficiency. Two rotating fixing components 4 are located on both sides of the chain assembly 3 and are used to synchronously fix the PCB board 2, ensuring that the PCB board 2 is accurately positioned and remains stable during the drilling process, without radial movement or axial displacement. The rotating fixing components 4 are connected to the chain assembly 3 through the synchronization component 5, so that the conveying movement of the chain assembly 3 and the positioning movement of the rotating fixing components 4 are linked and coordinated, eliminating the need for an additional independent drive device, achieving precise synchronization of conveying and positioning actions, simplifying the structure and improving the coordination of actions; The drilling assembly 6 is located above the rotating and fixing assembly 4 and is connected to the gantry 8 via the lifting assembly 7. The lifting assembly 7 is used to drive the drilling assembly 6 to make precise lifting and lowering movements in the vertical direction, complete the drilling feed and reset actions, and realize the automated drilling processing of the PCB board 2.

[0032] like Figure 1 , Figure 2 As shown, in some embodiments, the clamping assembly 1 includes a connecting block 9 and clamping members 10. The connecting block 9 is fixedly connected to the chain assembly 3 and moves synchronously with the chain assembly 3. The ends of the two clamping members 10 are located in the sliding grooves on the connecting block 9, and the two clamping members 10 are connected by a tension spring. The tension spring is always in a pre-tensioned state and generates opposing tension forces on the two clamping members 10 by its own elastic restoring force, so that the two clamping members 10 can adaptively fit the side of the PCB board 2 and apply a uniform clamping force, thereby realizing the rapid automatic clamping of the PCB board 2 without manual adjustment or external power drive, resulting in high clamping efficiency and stable clamping.

[0033] The clamping component 10 has an arc-shaped limiting boss. The arc-shaped structure facilitates the smooth pushing of the PCB board 2 into the clamping area, and at the same time, it can form a lateral limiting and locking of the PCB board 2. It also facilitates the subsequent unloading robot to grasp the PCB board 2, preventing the PCB board 2 from moving back and forth or falling off during the conveying process. The connecting block 9 is also equipped with a buffer pad 11. The buffer pad 11 is made of elastic buffer material. When the PCB board 2 is installed into the clamping component 1, it plays a buffering and vibration reduction role, absorbs impact energy, avoids the surface of the PCB board 2 being bumped and scratched, and reduces the vibration transmission generated during clamping and drilling, protecting the PCB board 2 and the drilling tool, and improving the processing quality and service life.

[0034] In this embodiment, the chain assembly 3 includes a first conveying chain 12 and a second conveying chain 13. The clamping assembly 1 is evenly installed on the first conveying chain 12 and the second conveying chain 13. It is driven by the synchronous bearing of the two chains to ensure that the clamping assembly 1 runs smoothly and is evenly stressed, avoiding the skewing and jamming that are prone to occur when conveying on one side of the chain. The two ends of the first conveying chain 12 and the second conveying chain 13 are installed on the base plate 26 through sprockets 14 and mounting brackets. The sprockets 14 mesh with the first conveying chain 12 and the second conveying chain 13 to ensure accurate and reliable motion transmission.

[0035] One of the sprockets 14 is connected to a servo power component 16 via a connecting shaft 15. The servo power component 16 provides precise and controllable rotational power, which drives the two sprockets 14 to rotate synchronously via the connecting shaft 15, thereby driving the first conveyor chain 12 and the second conveyor chain 13 to rotate synchronously. This achieves intermittent and precise conveying of the clamping component 1 and the PCB board 2, and can accurately control the conveying distance and dwell position to ensure that the PCB board 2 accurately reaches the drilling processing station.

[0036] like Figure 1 , Figure 2 As shown, in another embodiment, the rotating fixing assembly 4 includes a rotating disk 17, on which a plurality of uniformly arranged fixing members 18 are mounted. The fixing members 18 are evenly distributed along the circumference of the rotating disk 17 and can rotate synchronously with the rotating disk 17, sequentially entering the drilling station to complete the positioning action, realizing continuous flow positioning. The fixing members 18 are used to fit into the positioning grooves on the side wall of the PCB board 2, and achieve precise positioning and rigid fixing of the PCB board 2 through the fitting method. The rotating disk 17 is connected to the chain assembly 3 through the synchronization assembly 5, so that the rotational motion of the rotating disk 17 and the linear conveying motion of the chain assembly 3 maintain a strict transmission ratio and motion coordination.

[0037] When the servo power component 16 rotates, it drives the first conveyor chain 12 and the second conveyor chain 13 to move, and drives the rotating disk 17 to rotate synchronously. The motion transmission is coordinated and consistent, without lag or interference. When the PCB board 2 moves directly below the drilling component 6, the two relatively set fixing parts 18 rotate to the position corresponding to the PCB board 2 and are precisely fitted and fixed with the positioning grooves on both sides of the PCB board 2. Under the premise of not affecting the normal conveying and flow of the PCB board 2, the positioning and locking are automatically completed, providing a stable processing benchmark for drilling and ensuring the accuracy of hole processing.

[0038] In other embodiments, conductive contacts are embedded in the center of the positioning grooves at both ends of the PCB board 2. The contacts are made of a highly conductive metal material and are connected to the conductive lines of the PCB board 2 itself. The contact surface is treated with anti-oxidation to ensure the stability and reliability of the contact conduction and avoid detection errors caused by contact oxidation or poor contact. The ends of the two fixing members 18 are provided with conductive contact heads that are adapted to the contacts. The fixing members 18 are made of conductive material, and the two fixing members 18 are electrically connected to the control component 33 through wires to form a complete detection circuit loop. At the same time, the conductive contact heads of the fixing members 18 correspond precisely to the contacts in the center of the grooves of the PCB board 2, ensuring that when the fixing members 18 are fitted and engaged with the positioning grooves of the PCB board 2, they can make tight contact with the contacts.

[0039] When the two fasteners 18 are simultaneously embedded into the positioning grooves on both sides of the PCB board 2 and make contact with the contact point in the middle of the groove, the two fasteners 18 form a conductive state through the conductive lines of the PCB board 2 itself. Since the fasteners 18 are electrically connected to the control component 33, the conduction signal will be transmitted to the control component 33 in real time. On the one hand, the control component 33 can determine whether the conductivity of the PCB board 2 itself meets the production requirements by detecting the current signal of the conduction circuit. If the conductivity of the PCB board 2 is abnormal (such as broken lines, poor contact of contacts, etc.), the conduction circuit cannot be formed, and the control component 33 will immediately issue an alarm signal and control the device to stop operating, so that the staff can check the quality problems of the PCB board 2 in time and avoid unqualified products from entering the subsequent processing stage. On the other hand, the control component 33 presets the trigger conditions for the fixing member 18 to be turned on. Only when both fixing members 18 are simultaneously in contact with the corresponding contact points and form a connection is it determined that the PCB board 2 has accurately reached the designated processing position directly below the drilling component 6. If only one fixing member 18 is turned on or neither is turned on, it is determined that the PCB board 2 is not in place or the positioning is offset. The control component 33 will control the servo power component 16 to fine-tune the position of the chain component 3 until both fixing members 18 are turned on. After ensuring that the PCB board 2 is accurately positioned, the lifting component 7 is controlled to drive the drilling component 6 to perform drilling operations. This effectively avoids problems such as hole position offset and drilling failure caused by the positioning deviation of the PCB board 2, and further improves the processing accuracy and product qualification rate of the device.

[0040] In one embodiment, the synchronization component 5 includes a rotating support 19, which is mounted on the base plate 26. The rotating support 19 has a rotating shaft 20, which is connected to the rotating disk 17 and drives the rotating disk 17 to rotate coaxially, ensuring that the rotating disk 17 operates smoothly without eccentricity or wobbling.

[0041] A first bevel gear 21 is mounted on the rotating shaft 20. The first bevel gear 21 meshes with a second bevel gear 22. Through the meshing of the bevel gears, the rotational motion in the vertical plane is converted into rotational motion in the horizontal plane, realizing a stable conversion of the power direction. The second bevel gear 22 is sequentially connected to an intermediate shaft 23 and a third bevel gear 24. The intermediate shaft 23 plays the role of power transmission and transition support, ensuring that the transmission structure is compact and the transmission efficiency is high. The third bevel gear 24 meshes with a fourth bevel gear 25. The fourth bevel gear 25 is mounted on the connecting shaft 15 and rotates synchronously with the connecting shaft 15, transmitting the power output by the servo power component 16 to the rotating shaft 20 and the rotating disk 17 step by step, realizing the complete synchronous linkage between the chain component 3 and the rotating fixed component 4, ensuring precise matching of conveying and positioning actions, and improving the overall coordination and reliability of the device.

[0042] like Figure 1 , Figure 3 As shown, in some embodiments, the drilling assembly 6 includes a lifting frame 27, on which multiple drills 28 are mounted. These drills 28 are arranged according to a preset hole spacing, enabling simultaneous drilling of multiple holes on the PCB board 2 in one operation, significantly improving drilling efficiency. The lifting frame 27 is mounted on the lifting assembly 7 and driven by the lifting assembly 7 to achieve precise vertical displacement. Specifically, the lifting assembly 7 includes a mounting plate 29, which is fixedly mounted on the gantry 8. A slide rail 30 is mounted on the mounting plate 29, arranged parallel to the vertical direction. A slider that cooperates with the slide rail is mounted on the slide rail 30, and the slider is also connected to the lifting frame 27. The slide rail 30 and the slider form a high-precision linear guide pair, restricting the lifting frame 27 to move only in the vertical direction, ensuring that the feed direction of the drills 28 is precisely vertical, and improving the verticality of the holes and processing accuracy.

[0043] The mounting plate 29 is also equipped with a lifting servo motor 31, which outputs precise and controllable rotational power. The output end is connected to a rotating lead screw 32, which is fitted with a lead screw bearing. The lead screw bearing is installed on the side wall of the lifting frame 27. The rotational motion is converted into linear motion through the lead screw and nut transmission pair, driving the lifting frame 27 to rise and fall smoothly, realizing the precise feeding and rapid reset of the drill 28. It has high control accuracy and fast response speed, meeting the needs of automated high-precision processing.

[0044] In other embodiments, the lifting frame 27 is also equipped with a blower nozzle and an industrial camera. The blower nozzle is connected to an external air source and can spray high-pressure airflow into the processing area during and after drilling to promptly remove cutting debris from the hole, the surface of the PCB board 2, and the cutting tool. This prevents debris accumulation from scratching the board surface, clogging the hole, or affecting the tool's lifespan, ensuring drilling quality and a clean processing environment. The industrial camera is electrically connected to a control component 33. The industrial camera acquires processing images of the PCB board 2 in real time and transmits them to the control component 33. The control component 33 analyzes and processes the images to achieve online real-time detection of drilling position, hole diameter, hole shape accuracy, and board surface defects. It can promptly identify processing errors and defective products and provide feedback signals to adjust processing parameters, achieving closed-loop control and ensuring the consistency and stability of product processing quality.

[0045] The present invention also provides a method for manufacturing a PCB board for a safety light curtain, applied to the PCB board manufacturing apparatus for a safety light curtain as described above, comprising the following steps: S100. The feeding robot clamps the PCB board 2 and places it stably on the clamping assembly 1. Under the elastic force of the tension spring, the two clamping parts 10 automatically close inward to stably clamp the PCB board 2. The arc-shaped limiting boss and the buffer pad 11 work together to achieve reliable positioning and protection of the PCB board 2 and complete the automatic feeding operation. S200. The servo power assembly 16 starts and outputs rotational power, which drives the first conveyor chain 12, the second conveyor chain 13, and the clamping assembly 1 to move synchronously through the connecting shaft 15. At the same time, the power is transmitted through the multi-stage bevel gear in the synchronization assembly 5, which drives the rotating disk 17 to rotate synchronously. The movement is precise and coordinated. When the PCB board 2 on the clamping assembly 1 moves precisely to the bottom of the drilling assembly 6, the two oppositely arranged fixing parts 18 are matched with the positioning grooves on both sides of the PCB board 2 and clamped and fixed. At the same time, the clamping assembly 1 maintains the clamping state of the PCB board 2, forming a double positioning and fixing, providing a stable and reliable processing benchmark for drilling. S300. The lifting servo motor 31 rotates in the forward direction, driving the lifting frame 27 to move smoothly downward along the slide rail 30 through the transmission cooperation between the rotating lead screw 32 and the lead screw bearing. Multiple drills 28 on the lifting frame 27 simultaneously perform efficient drilling on the designated position of the PCB board 2. After drilling is completed, the lifting servo motor 31 rotates in the reverse direction, driving the lifting frame 27 to move upward and reset. The drills 28 leave the processing area and wait for the next processing cycle, completing the automatic drilling and reset action. S400. The unloading robot smoothly picks up the PCB board 2, which has been drilled and meets the processing requirements, from the clamping assembly 1 and transfers it to the next processing or inspection station, completing the automatic unloading operation. This realizes the fully automated continuous production of PCB board 2 from loading, conveying, positioning, drilling to unloading.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 PCB board manufacturing apparatus for safety light curtains, characterized in that: include Clamping assembly (1), the clamping assembly (1) is used to clamp PCB board (2), the clamping assembly (1) is mounted on chain assembly (3); Rotary fixing components (4), two of the rotary fixing components (4) are located on both sides of the chain assembly (3) and are used to synchronously fix the PCB board (2). The rotary fixing components (4) are connected to the chain assembly (3) through the synchronization component (5). A drilling assembly (6) is located above the rotating fixing assembly (4) and connected to a gantry frame (8) via a lifting assembly (7).

2. The PCB board production apparatus for safety light curtains according to claim 1, characterized in that: The clamping assembly (1) includes a connecting block (9) and clamping members (10). The connecting block (9) is connected to the chain assembly (3). The ends of the two clamping members (10) are located in the sliding groove on the connecting block (9), and the two clamping members (10) are connected by a tension spring. The clamping member (10) has an arc-shaped limiting boss, and a buffer pad (11) is also installed on the connecting block (9).

3. The PCB board production apparatus for safety light curtains according to claim 1, characterized in that: The chain assembly (3) includes a first conveyor chain (12) and a second conveyor chain (13). The clamping assembly (1) is installed on the first conveyor chain (12) and the second conveyor chain (13). The two ends of the first conveyor chain (12) and the second conveyor chain (13) are installed on the base plate (26) through sprockets (14) and mounting brackets. One of the sprockets (14) is connected to a servo power assembly (16) via a connecting shaft (15). The servo power assembly (16) rotates to drive the first conveyor chain (12) and the second conveyor chain (13) to rotate.

4. The PCB board production apparatus for safety light curtains according to claim 3, characterized in that: The rotating fixing assembly (4) includes a rotating disk (17), on which a plurality of uniformly arranged fixing parts (18) are installed. The fixing parts (18) are used to fit into the positioning grooves on the side wall of the PCB board (2). The rotating disk (17) is connected to the chain assembly (3) through the synchronization assembly (5). When the servo power component (16) rotates, it drives the first conveyor chain (12) and the second conveyor chain (13) to move and drives the rotating disk (17) to rotate synchronously. When the PCB board (2) moves directly below the drilling component (6), the two oppositely arranged fixing parts (18) are adapted and fixed to the positioning grooves on both sides of the PCB board (2).

5. The PCB board production apparatus for safety light curtains according to claim 4, characterized in that: The synchronization component (5) includes a rotating support base (19), which is mounted on a base plate (26). The rotating support base (19) has a rotating shaft (20) which is connected to the rotating disk (17). A first bevel gear (21) is mounted on the rotating shaft (20). The first bevel gear (21) is meshed with a second bevel gear (22). The second bevel gear (22) is sequentially connected to an intermediate shaft (23) and a third bevel gear (24). The third bevel gear (24) is meshed with a fourth bevel gear (25). The fourth bevel gear (25) is mounted on the connecting shaft (15).

6. The PCB board production apparatus for safety light curtains according to claim 1, characterized in that: The drilling assembly (6) includes a lifting frame (27) on which a plurality of drills (28) are mounted, and the lifting frame (27) is mounted on the lifting assembly (7).

7. The PCB board production apparatus for safety light curtains according to claim 6, characterized in that: The lifting assembly (7) includes a mounting plate (29), which is mounted on the gantry (8). A slide rail (30) is mounted on the mounting plate (29), and a slider that cooperates with the slide rail (30) is mounted on the slide rail (30). The slider is also connected to the lifting frame (27). The mounting plate (29) is also equipped with a lifting servo motor (31), the output end of which is connected to a rotating lead screw (32), and the rotating lead screw (32) is fitted with a lead screw bearing, which is installed on the side wall of the lifting frame (27).

8. The PCB board production apparatus for safety light curtains according to claim 6, characterized in that: The lifting frame (27) is also equipped with a purge nozzle and an industrial camera, the industrial camera being electrically connected to a control component (33).

9. A method for manufacturing a PCB board for a safety light curtain, applied to the PCB board manufacturing apparatus for a safety light curtain as described in any one of claims 1 to 8, characterized in that, Includes the following steps: S100. The feeding robot clamps the PCB board (2) and places it on the clamping assembly (1) so that the two clamping parts (10) clamp the PCB board (2); S200. When the servo power component (16) rotates, it drives the first conveyor chain (12), the second conveyor chain (13), and the clamping component (1) to move and drives the rotating disk (17) to rotate synchronously. When the PCB board (2) on the clamping component (1) moves to the bottom of the drilling component (6), the two oppositely arranged fixing parts (18) are adapted to the positioning grooves on both sides of the PCB board (2) and fixed to maintain the clamping state. S300. The lifting servo motor (31) rotates in the forward direction, causing the lifting frame (27) to move downward, so that the drill (28) on the lifting frame (27) drills a hole on the PCB board (2). After that, the lifting servo motor (31) rotates in the reverse direction, causing the lifting frame (27) to move upward and reset. S400. The unloading robot is used to pick up the drilled PCB board (2) and move it to the next station.

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