A laser cutting apparatus for double-sided printed circuit boards

Abstract

The application relates to the technical field of laser cutting equipment, and particularly discloses laser cutting equipment for double-sided printed circuit boards, which comprises a supporting seat, the top of the supporting seat is fixedly connected with a cabinet, feeding ports and first discharging ports are respectively arranged on the two sides of the cabinet, a cold fan is penetrated through and fixedly connected to the top of the cabinet, a clamping fixing device is fixedly connected to the bottom of the inner wall of the cabinet, a mounting plate is fixedly connected to the top of a first support, a storage box is fixedly connected to the top of the mounting plate, a pushing mechanism is fixedly connected to the bottom of the mounting plate, and a dust removal mechanism is fixedly connected to the part of the bottom of the inner wall of the cabinet which is located on one side of a second support. The laser cutting equipment for double-sided printed circuit boards is provided with the clamping fixing device, so that the printed circuit board can be firmly fixed, the cutting precision is prevented from being reduced due to the deviation of the printed circuit board during laser cutting, and the pushing mechanism is arranged, so that the feeding process can be automatically completed, and the manual labor intensity is reduced.

Description

Technical Field

[0001] This invention relates to the field of laser cutting equipment technology, specifically to a laser cutting device for double-sided printed circuit boards. Background Technology

[0002] As the electronics and information industry develops towards high density, thinness, and high reliability, double-sided printed circuit boards (PCBs) have become widely used in smartphones, automotive electronics, industrial control modules, wearable devices, and other fields because they can arrange circuits on both sides of the substrate and greatly improve space utilization. With the increasing penetration rate of new energy vehicles and Internet of Things (IoT) devices, the demand for PCBs continues to grow at a compound annual growth rate. As a key downstream process, the cutting process needs to achieve functions such as substrate shape cutting, via opening, and edge line trimming. Its precision and efficiency directly determine the product yield and production cycle.

[0003] Existing technologies may reduce cutting accuracy due to improper fixing and cutting deviation of circuit boards during cutting, and may also damage circuit boards due to rigid clamping. In addition, traditional equipment generates a lot of heat and debris dust during cutting, which, if not handled in time, will not only affect the cutting quality, but also endanger the health of operators. Summary of the Invention

[0004] To solve the above technical problems, the present invention is implemented through the following technical solution: a laser cutting device for double-sided printed circuit boards, including a support base, a cabinet fixedly connected to the top of the support base, a feed inlet and a first discharge outlet respectively opened on both sides of the cabinet, a cool air fan through and fixedly connected to the top of the cabinet, a clamping and fixing device fixedly connected to the bottom of the inner wall of the cabinet, and a fixed end of a robotic arm fixedly connected to the bottom of the inner wall of the cabinet on both sides of the clamping and fixing device, a vacuum suction cup fixedly connected to the execution end of the robotic arm, a first bracket fixedly connected to the bottom of the inner wall of the cabinet on one side of the clamping and fixing device, a mounting plate fixedly connected to the top of the first bracket, and a storage box fixedly connected to the top of the mounting plate. The storage box has a second discharge port on its side. A pushing mechanism is fixedly connected to the bottom of the mounting plate. A second bracket is fixedly connected to the bottom of the cabinet's inner wall on the side of the clamping and fixing device. A dust collection hood is fixedly connected to the top of the second bracket. A dust removal mechanism is fixedly connected to the bottom of the cabinet's inner wall on the side of the second bracket. A third bracket is fixedly connected to the bottom of the cabinet's inner wall on the side of the dust removal mechanism. A placement plate is fixedly connected to the top of the third bracket. A conveying mechanism is fixedly connected to the bottom of the cabinet's inner wall on the side of the third bracket. A multi-axis moving mechanism is fixedly connected to the bottom of the cabinet's inner wall on the side of the clamping and fixing device. A laser cutting head is fixedly connected to one side of the multi-axis moving mechanism.

[0005] Preferably, the clamping and fixing device includes a fourth bracket, a first connecting plate fixedly connected to the top of the fourth bracket, a fifth bracket fixedly connected to the top of the first connecting plate, two sets of the fifth bracket symmetrically distributed on the top of the first connecting plate, a sliding guide rod fixedly connected to the inner wall of the fifth bracket, a gear rotatably connected to the portion of the top of the first connecting plate located between the two sets of fifth brackets, a movable opening opened on the portion of the top of the first connecting plate located on one side of the gear, a first sliding block sleeved and slidably connected to the sliding guide rod, a connecting seat fixedly connected to the top of the first sliding block, a clamping mechanism fixedly connected to the top of the connecting seat, a sliding opening opened on the side of the connecting seat, a second connecting plate fixedly connected to the bottom of the first sliding block, a gear fixedly connected to the side of the connecting seat, the side of the gear meshing with the gear, a first L-shaped connecting rod fixedly connected to the bottom of the second connecting plate, a movable end of a pneumatic piston rod fixedly connected to the end of the first L-shaped connecting rod away from the second connecting plate, a fixed end of the pneumatic piston rod fixedly connected to the bottom of the first connecting plate, and the fourth bracket fixedly connected to the portion of the bottom of the inner wall of the cabinet located on one side of the first bracket.

[0006] Preferably, the clamping mechanism includes a fixed base, a first slide rail fixedly connected to the top of the fixed base, a third sliding block slidably connected to the inner wall of the first slide rail, a first connecting rod fixedly connected to the top of the third sliding block, upper clamping plates rotatably connected to both sides of the first connecting rod, a fixed end of an electric telescopic rod fixedly connected to the top of the fixed base on one side of the first slide rail, a movable end of the electric telescopic rod fixedly connected to one side of the third sliding block, a lower clamping plate fixedly connected to the top of the fixed base on one side of the first slide rail, flexible elastic strips fixedly connected to the bottom of the upper clamping plate and the top of the lower clamping plate, and a sixth bracket fixedly connected to the top of the lower clamping plate. A fixed rod is fixedly connected, and a rotating opening is provided at the top of the upper clamping plate. A second connecting rod is sleeved on and rotatably connected to the fixed rod. The end of the second connecting rod away from the fixed rod is rotatably connected to the inner wall of the rotating opening. When the pneumatic piston rod is activated, the first sliding block moves along the sliding guide rod through the first L-shaped connecting rod and the second connecting plate, causing the rack to drive the gear to rotate, thereby driving the two sets of racks to move synchronously towards each other. The spacing of the clamping mechanism is adjusted to accommodate circuit boards of different widths. Then, the electric telescopic rod is activated to push the third sliding block to slide along the first slide rail. The first connecting rod drives the upper clamping plate to rotate around the rotating opening, bringing it closer to the lower clamping plate. The circuit board is first buffered and protected by a flexible elastic strip, and then further clamped and fixed.

[0007] Preferably, the pushing mechanism includes a second slide rail, a second sliding block slidably connected to the inner wall of the second slide rail, a U-shaped frame fixedly connected to the bottom of the second sliding block, a third connecting rod rotatably connected to the inner wall of the U-shaped frame, a first rotating frame rotatably connected to the end of the third connecting rod away from the U-shaped frame, a second rotating frame rotatably connected to the end of the first rotating frame away from the third connecting rod, a drive shaft of a first motor fixedly connected to the end of the second rotating frame away from the first rotating frame, a second L-shaped connecting rod fixedly connected to the side of the second sliding block, a push rod fixedly connected to the end of the second L-shaped connecting rod away from the second sliding block, and a... The pusher plate and the second slide rail are fixedly connected to the bottom of the mounting plate. The first motor is fixedly connected to the inner wall of the first bracket. The end of the push rod away from the second L-shaped connecting rod passes through the side of the storage box and is slidably connected to the side of the storage box. After the circuit board to be cut is placed into the storage box, the first motor is started. Its drive shaft drives the second rotating frame to rotate. Through the first rotating frame, the third connecting rod, the U-shaped frame and other transmission components, the second sliding block is driven to slide along the second slide rail, thereby causing the push rod and the pusher plate to move and push the circuit board out from the second discharge port for the robotic arm to transfer to the clamping device. At the same time, the first motor drives the second rotating frame to swing periodically to ensure that the pusher plate automatically returns to the initial position after pushing the material, waiting for the next push.

[0008] Preferably, the dust removal mechanism includes a dust collection box, a filter plate is fixedly connected to the inner wall of the dust collection box, filter holes are evenly opened on the top of the filter plate, a suction pipe is evenly connected to the top of the dust collection box, the part of the side of the dust collection box located below the filter plate is connected to the air inlet of the suction pump, the dust collection box is fixedly connected to the bottom part of the inner wall of the cabinet located on one side of the second bracket, and the end of the suction pipe away from the dust collection box is connected to the dust collection hood.

[0009] Preferably, the conveying mechanism includes a fixed base, an annular bracket fixedly connected to the top of the fixed base, a first connecting bracket fixedly connected to the bottom of the inner wall of the annular bracket, a first rotating rod rotatably connected to the inner wall of the first connecting bracket, a second motor fixedly connected to the side of the first connecting bracket, the drive shaft of the second motor passing through the side of the first connecting bracket and fixedly connected to the first rotating rod, a first spring fixedly connected to the top of the first connecting bracket, a second connecting bracket fixedly connected to the end of the first spring away from the first connecting bracket, a second spring fixedly connected to the top of the second connecting bracket, the end of the second spring away from the second connecting bracket being fixedly connected to the top of the inner wall of the annular bracket, a second rotating rod rotatably connected to the inner wall of the second connecting bracket, a driven guide roller sleeved and fixedly connected to the second rotating rod, an active guide roller sleeved and fixedly connected to the first rotating rod, the fixed base fixedly connected to the bottom of the inner wall of the cabinet on one side of the third bracket, two sets of fixed bases symmetrically distributed on the bottom of the inner wall of the cabinet, and the top of the active guide roller being flush with the first discharge port.

[0010] This invention provides a laser cutting device for double-sided printed circuit boards. It has the following advantages: 1. This laser cutting equipment for double-sided printed circuit boards uses a first motor to drive multiple sets of rotating frames, connecting rods, and sliding components to automatically push the pusher plate back and forth, replacing manual operation of circuit board loading and significantly reducing labor intensity. The pusher plate can accurately push the circuit boards in the storage box out of the second discharge port, seamlessly connecting with the subsequent clamping and transfer of the robotic arm, avoiding operation delays during manual loading. At the same time, the first motor drives the second rotating frame to form a periodic swing, ensuring that the pusher plate automatically returns to the initial position after each push, achieving continuous and stable material supply, ensuring uninterrupted circuit board cutting, loading, and transfer, and improving the continuity and production efficiency of the device.

[0011] 2. This laser cutting equipment for double-sided printed circuit boards utilizes a pneumatic piston rod and a gear meshing transmission structure. This allows for flexible adjustment of the clamping mechanism spacing according to the width of the circuit board, adapting to different specifications of double-sided printed circuit boards without frequent clamp changes. An electric telescopic rod drives the upper clamping plate to rotate, working in conjunction with the lower clamping plate to achieve stable clamping and prevent circuit board displacement during cutting. Furthermore, the flexible elastic strips on the clamping plates contact the circuit board first during clamping, providing a buffering effect and preventing damage from hard clamping forces, ensuring the integrity of the circuit board before cutting. The stable clamping effect effectively prevents a decrease in cutting accuracy due to board misalignment during laser cutting, reducing the scrap rate.

[0012] 3. This laser cutting equipment for double-sided printed circuit boards generates high temperatures and dust during laser cutting. The cool air blower can promptly blow cool air onto the cutting area to quickly remove heat, preventing high-temperature damage to the circuit board and ensuring the integrity of the circuit board after cutting. This avoids affecting product quality due to heat damage. At the same time, the high-speed airflow generated by the cool air blower can help disperse cutting debris. Combined with the suction pump, the debris and dust are sucked into the dust collection box through the suction pipe and dust collection hood. The filter plate can intercept large particles of debris, achieving dust separation from the air, thereby improving the workshop working environment and reducing the impact of dust on the health of operators.

[0013] 4. This laser cutting equipment for double-sided printed circuit boards uses a second motor to drive the active guide roller to rotate, and uses friction to automatically convey the cut circuit boards, replacing manual handling and avoiding damage to the edges and corners of the circuit boards caused by improper force during manual handling. At the same time, under the elastic action of the first and second springs, the second connecting bracket can automatically adjust the distance between the driven guide roller and the active guide roller according to the thickness of the circuit board, adapting to finished circuit boards of different thicknesses, ensuring that the boards do not jam or deviate during the conveying process, and are smoothly conveyed out of the cabinet from the first discharge port, improving production continuity. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the laser cutting equipment for the double-sided printed circuit board of the present invention; Figure 2 This is a schematic diagram of the internal connection structure of the laser cutting equipment for the double-sided printed circuit board of the present invention; Figure 3 This is a schematic diagram of the connection structure of the feeding mechanism of the present invention; Figure 4 This is a schematic diagram of the feeding mechanism of the present invention; Figure 5 This is a schematic diagram of the clamping and fixing device of the present invention; Figure 6 This is a schematic diagram of the clamping mechanism structure of the present invention; Figure 7 This is a schematic diagram of the connection structure of the dust removal mechanism of the present invention; Figure 8 This is a schematic diagram of the conveying mechanism structure of the present invention.

[0015] In the diagram: 1. Support base; 2. Cabinet; 3. Laser cutting head; 4. Feed inlet; 5. First discharge outlet; 6. Air cooler; 7. Clamping and fixing device; 8. Conveying mechanism; 9. Robotic arm; 10. Vacuum suction cup; 11. First bracket; 12. Mounting plate; 13. Storage bin; 14. Second discharge outlet; 15. Pushing mechanism; 16. Second bracket; 17. Dust collection hood; 18. Dust removal mechanism; 19. Third bracket; 20. Placement plate; 21. Multi-axis movement. 71. Moving mechanism; 72. Fourth bracket; 73. First connecting plate; 74. Fifth bracket; 75. Sliding guide rod; 76. Gear; 77. Movable opening; 78. First sliding block; 79. Connecting seat; 70. Clamping mechanism; 710. Sliding opening; 711. Second connecting plate; 712. Gear rack; 713. First L-shaped connecting rod; 714. Pneumatic piston rod; 791. Fixed base; 792. First slide rail; 793. Third sliding block; 794. First 795. Connecting rod; 796. Upper clamping plate; 797. Electric telescopic rod; 798. Lower clamping plate; 799. Flexible elastic strip; 790. Sixth bracket; 7910. Fixed rod; 7911. Rotating port; 7912. Second connecting rod; 151. Second slide rail; 152. Second sliding block; 153. U-shaped frame; 154. Third connecting rod; 155. First rotating frame; 156. Second rotating frame; 157. First motor; 158. Second L-shaped connection 159. Push rod; 1510. Push plate; 181. Dust collection box; 182. Filter plate; 183. Filter hole; 184. Suction pipe; 185. Suction pump; 81. Fixed base; 82. Ring bracket; 83. First connecting bracket; 84. First rotating rod; 85. First spring; 86. Second connecting bracket; 87. Second spring; 88. Second rotating rod; 89. Driven guide roller; 810. Active guide roller; 811. Second motor. Detailed Implementation

[0016] 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.

[0017] For the first embodiment, please refer to... Figures 1-4This invention provides a technical solution: a laser cutting device for double-sided printed circuit boards, including a support base 1, a cabinet 2 fixedly connected to the top of the support base 1, a feed inlet 4 and a first discharge outlet 5 respectively opened on both sides of the cabinet 2, a cooler 6 passing through and fixedly connected to the top of the cabinet 2, a clamping and fixing device 7 fixedly connected to the bottom of the inner wall of the cabinet 2, the fixed ends of robotic arms 9 fixedly connected to the portions of the bottom of the inner wall of the cabinet 2 located on both sides of the clamping and fixing device 7, the execution ends of the robotic arms 9 fixedly connected to the execution ends of the robotic arms 9, a first bracket 11 fixedly connected to the portion of the bottom of the inner wall of the cabinet 2 located on one side of the clamping and fixing device 7, and a mounting bracket 10 fixedly connected to the top of the first bracket 11. A material storage box 13 is fixedly connected to the top of the mounting plate 12. A second discharge port 14 is opened on the side of the material storage box 13. A pushing mechanism 15 is fixedly connected to the bottom of the mounting plate 12. A second bracket 16 is fixedly connected to the bottom of the inner wall of the cabinet 2 on the side of the clamping and fixing device 7. A dust collection hood 17 is fixedly connected to the top of the second bracket 16. A dust removal mechanism 18 is fixedly connected to the bottom of the inner wall of the cabinet 2 on the side of the second bracket 16. A third bracket 19 is fixedly connected to the bottom of the inner wall of the cabinet 2 on the side of the dust removal mechanism 18. A placement plate 20 is fixedly connected to the top of the third bracket 19. A third bracket 20 is fixedly connected to the bottom of the inner wall of the cabinet 2 on the side of the third bracket 19. A conveying mechanism 8 is connected to the bottom of the inner wall of the cabinet 2, which is located on one side of the clamping and fixing device 7. A multi-axis moving mechanism 21 is fixedly connected to one side of the multi-axis moving mechanism 21. A laser cutting head 3 is fixedly connected to one side of the multi-axis moving mechanism 21. The pushing mechanism 15 includes a second slide rail 151. A second sliding block 152 is slidably connected to the inner wall of the second slide rail 151. A U-shaped frame 153 is fixedly connected to the bottom of the second sliding block 152. A third connecting rod 154 is rotatably connected to the inner wall of the U-shaped frame 153. A first rotating frame 155 is rotatably connected to the end of the third connecting rod 154 away from the U-shaped frame 153. A second rotating frame 156 is rotatably connected to the end of the first rotating frame 155 away from the third connecting rod 154. The drive shaft of the first motor 157 is fixedly connected to one end of the second rotating frame 156 away from the first rotating frame 155. The second sliding block 152 is fixedly connected to the side of the second L-shaped connecting rod 158. The push rod 159 is fixedly connected to one end of the second L-shaped connecting rod 158 away from the second sliding block 152. The push rod 159 is fixedly connected to the push plate 1510 at one end away from the second L-shaped connecting rod 158. The second slide rail 151 is fixedly connected to the bottom of the mounting plate 12. The first motor 157 is fixedly connected to the inner wall of the first bracket 11. The push rod 159 is slidably connected to the side of the storage box 13 at one end away from the second L-shaped connecting rod 158.

[0018] In use, the circuit board to be cut is placed into the storage box 13 through the feed port 4. The first motor 157 is started, and the drive shaft of the first motor 157 drives the second rotating frame 156 to rotate. The rotation of the second rotating frame 156 drives the first rotating frame 155 to rotate. The rotation of the first rotating frame 155 drives the third connecting rod 154 to move. The movement of the third connecting rod 154 drives the U-shaped frame 153 to move. The movement of the U-shaped frame 153 drives the second sliding block 152 to slide within the second slide rail 151. The second sliding block 152 drives the second L-shaped connecting rod 158 to move. The push rod 159 moves, which in turn moves the push plate 1510. The push plate 1510 pushes the double-sided printed circuit board in the storage box 13 out of the second discharge port 14, so that the robotic arm 9 can move the circuit board to the clamping and fixing device 7 for clamping and fixing, waiting for cutting. Driven by the first motor 157, the second rotating frame 156 swings in a certain period of time, ensuring that the push plate 1510 returns to the initial position after pushing out each circuit board, waiting for the next push. This reduces the labor intensity of manual labor and ensures the continuity of production and work efficiency.

[0019] For the second embodiment, please refer to... Figures 1-6Based on the first embodiment, the present invention provides a technical solution: the clamping and fixing device 7 includes a fourth bracket 71, a first connecting plate 72 fixedly connected to the top of the fourth bracket 71, a fifth bracket 73 fixedly connected to the top of the first connecting plate 72, two sets of the fifth brackets 73 symmetrically distributed on the top of the first connecting plate 72, a sliding guide rod 74 fixedly connected to the inner wall of the fifth bracket 73, a gear 75 rotatably connected to the top of the first connecting plate 72 located between the two sets of fifth brackets 73, and an opening 76 for the top of the first connecting plate 72 located on one side of the gear 75, and a sliding guide rod 74 is sleeved on the sliding guide rod 74 and slides thereon. A first sliding block 77 is connected, a connecting seat 78 is fixedly connected to the top of the first sliding block 77, a clamping mechanism 79 is fixedly connected to the top of the connecting seat 78, a sliding opening 710 is opened on the side of the connecting seat 78, a second connecting plate 711 is fixedly connected to the bottom of the first sliding block 77, a gear 712 is fixedly connected to the side of the connecting seat 78, the side of the gear 712 meshes with a gear 75, a first L-shaped connecting rod 713 is fixedly connected to the bottom of the second connecting plate 711, the movable end of a pneumatic piston rod 714 is fixedly connected to the end of the first L-shaped connecting rod 713 away from the second connecting plate 711, and the fixed end of the pneumatic piston rod 714 is fixedly connected to... The bottom of the first connecting plate 72 and the fourth bracket 71 are fixedly connected to the bottom of the inner wall of the cabinet 2, located on one side of the first bracket 11. The clamping mechanism 79 includes a fixed base 791, a first slide rail 792 fixedly connected to the top of the fixed base 791, a third sliding block 793 slidably connected to the inner wall of the first slide rail 792, a first connecting rod 794 fixedly connected to the top of the third sliding block 793, upper clamping plates 795 rotatably connected to both sides of the first connecting rod 794, and the fixed end of an electric telescopic rod 796 fixedly connected to the top of the fixed base 791, located on one side of the first slide rail 792. The movable end of the electric telescopic rod 796 is connected to the third... A sliding block 793 is fixedly connected to one side. A lower clamping plate 797 is fixedly connected to the top of the fixed base 791 on one side of the first slide rail 792. Flexible elastic strips 798 are fixedly connected to the bottom of the upper clamping plate 795 and the top of the lower clamping plate 797. A sixth bracket 799 is fixedly connected to the top of the lower clamping plate 797. A fixing rod 7910 is fixedly connected to the inner wall of the sixth bracket 799. A rotating opening 7911 is opened on the top of the upper clamping plate 795. A second connecting rod 7912 is sleeved on the fixing rod 7910 and rotatably connected. The end of the second connecting rod 7912 away from the fixing rod 7910 is rotatably connected to the inner wall of the rotating opening 7911.

[0020] In use, the pneumatic piston rod 714 is activated. The movable end of the pneumatic piston rod 714 drives the second connecting plate 711 to move via the first L-shaped connecting rod 713. The second connecting plate 711 drives the first sliding block 77 to slide on the sliding guide rod 74. When the first sliding block 77 moves, it drives the rack 712 to move. Since the rack 712 meshes with the gear 75, the gear 75 rotates. The rotation of the gear 75 drives the two sets of racks 712 to move synchronously in opposite directions. The synchronous movement of the two sets of racks 712 drives the connecting seat 78 to move. The connecting seat 78 drives the clamping mechanism 79 to move, thereby adapting to the clamping of circuit boards of different widths. Then, the electric telescopic rod 796 is activated. The movable end of the electric telescopic rod 796 pushes... The third sliding block 793 slides within the first slide rail 792, driving the first connecting rod 794 to move. The first connecting rod 794 drives the upper clamping plate 795 to rotate around the center of the rotating opening 7911, thereby causing the upper clamping plate 795 to gradually approach the lower clamping plate 797. The flexible elastic strips 798 on the upper clamping plate 795 and the lower clamping plate 797 first contact the circuit board, and the flexible elastic strips 798 play a role in buffering and protecting the circuit board. As the electric telescopic rod 796 continues to push, the upper clamping plate 795 and the lower clamping plate 797 tightly clamp the circuit board, thereby completing the fixing operation of the circuit board so that the laser cutting head 3 can cut the circuit board in the subsequent process, avoiding cutting deviation that would reduce accuracy.

[0021] Third embodiment, please refer to Figures 1-7 Based on the second embodiment, the present invention provides a technical solution: the dust removal mechanism 18 includes a dust removal box 181, a filter plate 182 is fixedly connected to the inner wall of the dust removal box 181, filter holes 183 are evenly opened on the top of the filter plate 182, a suction pipe 184 is evenly connected to the top of the dust removal box 181, the part of the side of the dust removal box 181 located below the filter plate 182 is connected to the air inlet of the suction pump 185, the dust removal box 181 is fixedly connected to the bottom of the inner wall of the cabinet 2 located on the side of the fourth bracket 71, and the end of the suction pipe 184 away from the dust removal box 181 is connected to the dust collection hood 17.

[0022] During laser cutting, a large amount of heat is generated, necessitating cooling of the cutting area. Cutting also produces debris that causes dust pollution. Therefore, the cooling fan 6 is activated. The cool air generated by the cooling fan 6 promptly cools the circuit board being cut, preventing deformation or damage due to high temperatures and ensuring cutting quality. Simultaneously, the high-speed airflow generated by the cooling fan 6 disperses the cutting debris, while the suction pump 185 is activated. The suction pump 185 draws the cutting debris and dust into the dust collection box 181 through the suction pipe 184 and dust collection hood 17. The filter holes 183 on the filter plate 182 effectively intercept larger debris particles, keeping dust above the filter plate 182, while cleaner air enters below the filter plate 182 through the filter holes 183 and is then discharged by the suction pump 185, effectively reducing dust pollution generated during the cutting process.

[0023] For the fourth embodiment, please refer to [link / reference]. Figures 1-8 Based on the third embodiment, the present invention provides a technical solution: the conveying mechanism 8 includes a fixed base 81, an annular bracket 82 is fixedly connected to the top of the fixed base 81, a first connecting bracket 83 is fixedly connected to the bottom of the inner wall of the annular bracket 82, a first rotating rod 84 is rotatably connected to the inner wall of the first connecting bracket 83, a second motor 811 is fixedly connected to the side of the first connecting bracket 83, the drive shaft of the second motor 811 passes through the side of the first connecting bracket 83 and is fixedly connected to the first rotating rod 84, a first spring 85 is fixedly connected to the top of the first connecting bracket 83, and a second spring 85 is fixedly connected to the end of the first spring 85 away from the first connecting bracket 83. A connecting bracket 86 is provided, and a second spring 87 is fixedly connected to the top of the second connecting bracket 86. The end of the second spring 87 away from the second connecting bracket 86 is fixedly connected to the top of the inner wall of the annular bracket 82. A second rotating rod 88 is rotatably connected to the inner wall of the second connecting bracket 86. A driven guide roller 89 is sleeved and fixedly connected to the second rotating rod 88. An active guide roller 810 is sleeved and fixedly connected to the first rotating rod 84. A fixed seat 81 is fixedly connected to the bottom of the inner wall of the cabinet 2 on one side of the third bracket 19. Two sets of fixed seats 81 are provided and symmetrically distributed on the bottom of the inner wall of the cabinet 2. The top of the active guide roller 810 is flush with the first discharge port 5.

[0024] In use, after cutting is completed, the robotic arm 9 moves the cut circuit board to the position on the placement plate 20 where it contacts the active guide roller 810. Then, the second motor 811 is started. The drive shaft of the second motor 811 drives the first rotating rod 84 to rotate. The first rotating rod 84 drives the active guide roller 810 to rotate. Under the action of the rotational friction of the active guide roller 810, the circuit board begins to move forward for conveying. The second connecting bracket 86, under the elastic action of the first spring 85 and the second spring 87, can automatically adjust the distance between the driven guide roller 89 and the active guide roller 810 according to the thickness of the circuit board, which improves the adaptability of the device and ensures that the circuit board can be smoothly conveyed out of the cabinet 2 from the first discharge port 5.

[0025] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A laser cutting device for double-sided printed circuit boards, characterized in that: Includes a support base (1), the top of which is fixedly connected to a cabinet (2), the cabinet (2) has an inlet (4) and a first outlet (5) on both sides, a cooler (6) is fixedly connected through the top of the cabinet (2), a clamping device (7) is fixedly connected to the bottom of the inner wall of the cabinet (2), the bottom of the inner wall of the cabinet (2) on both sides of the clamping device (7) is fixedly connected to the fixed ends of a robotic arm (9), the execution end of the robotic arm (9) is fixedly connected to a vacuum suction cup (10), the bottom of the inner wall of the cabinet (2) on one side of the clamping device (7) is fixedly connected to a first bracket (11), the top of the first bracket (11) is fixedly connected to a mounting plate (12), the top of the mounting plate (12) is fixedly connected to a storage box (13), the side of the storage box (13) has a second outlet (14), ... side of the storage box (13) has a second outlet (14), the side of the storage box (13) has a second outlet (14), the side of the storage box (13) has a second outlet (14), the side of the storage box (13) has a second outlet (14), the side of the storage box (13) has a second outlet (14), the side of the storage box (13) has a second outlet (14), the side of the storage box (13) has a second outlet (14), the side of the storage box (13) has a second outlet (14), the side of the storage box (13) 12) A pushing mechanism (15) is fixedly connected to the bottom. A second bracket (16) is fixedly connected to the bottom of the inner wall of the cabinet (2) on the side of the clamping and fixing device (7). A dust collection hood (17) is fixedly connected to the top of the second bracket (16). A dust removal mechanism (18) is fixedly connected to the bottom of the inner wall of the cabinet (2) on the side of the second bracket (16). A third bracket (19) is fixedly connected to the bottom of the inner wall of the cabinet (2) on the side of the dust removal mechanism (18). A placement plate (20) is fixedly connected to the top of the third bracket (19). A conveying mechanism (8) is fixedly connected to the bottom of the inner wall of the cabinet (2) on the side of the third bracket (19). A multi-axis moving mechanism (21) is fixedly connected to the bottom of the inner wall of the cabinet (2) on the side of the clamping and fixing device (7). A laser cutting head (3) is fixedly connected to one side of the multi-axis moving mechanism (21).

2. The laser cutting equipment for double-sided printed circuit boards according to claim 1, characterized in that: The clamping and fixing device (7) includes a fourth bracket (71), a first connecting plate (72) is fixedly connected to the top of the fourth bracket (71), a fifth bracket (73) is fixedly connected to the top of the first connecting plate (72), the fifth bracket (73) has two sets symmetrically distributed on the top of the first connecting plate (72), a sliding guide rod (74) is fixedly connected to the inner wall of the fifth bracket (73), a gear (75) is rotatably connected to the part of the top of the first connecting plate (72) located between the two sets of fifth brackets (73), and an opening (76) is opened on the part of the top of the first connecting plate (72) located on one side of the gear (75). A first sliding block (77) is sleeved on and slidably connected to the sliding guide rod (74), and a connecting seat (78) is fixedly connected to the top of the first sliding block (77). A clamping mechanism (79) is fixedly connected to the top of the connecting seat (78). A sliding opening (710) is provided on the side of the connecting seat (78). A second connecting plate (711) is fixedly connected to the bottom of the first sliding block (77). A toothed rod (712) is fixedly connected to the side of the connecting seat (78). The side of the toothed rod (712) meshes with a gear (75). A first L-shaped connecting rod (713) is fixedly connected to the bottom of the second connecting plate (711). The end of the first L-shaped connecting rod (713) away from the second connecting plate (711) is fixedly connected to the movable end of a pneumatic piston rod (714). The fixed end of the pneumatic piston rod (714) is fixedly connected to the bottom of the first connecting plate (72). The fourth bracket (71) is fixedly connected to the part of the bottom of the inner wall of the cabinet (2) located on one side of the first bracket (11).

3. The laser cutting equipment for double-sided printed circuit boards according to claim 2, characterized in that: The clamping mechanism (79) includes a fixed base (791), a first slide rail (792) fixedly connected to the top of the fixed base (791), a third sliding block (793) slidably connected to the inner wall of the first slide rail (792), a first connecting rod (794) fixedly connected to the top of the third sliding block (793), and upper clamping plates (795) rotatably connected to both sides of the first connecting rod (794). The fixed end of an electric telescopic rod (796) is fixedly connected to the top of the fixed base (791) on one side of the first slide rail (792), and the movable end of the electric telescopic rod (796) is fixedly connected to one side of the third sliding block (793). A lower clamping plate (797) is fixedly connected to the top of the first slide rail (792) on one side. A flexible elastic strip (798) is fixedly connected to the bottom of the upper clamping plate (795) and the top of the lower clamping plate (797). A sixth bracket (799) is fixedly connected to the top of the lower clamping plate (797). A fixing rod (7910) is fixedly connected to the inner wall of the sixth bracket (799). A rotating opening (7911) is opened on the top of the upper clamping plate (795). A second connecting rod (7912) is sleeved on the fixing rod (7910) and rotatably connected. The end of the second connecting rod (7912) away from the fixing rod (7910) is rotatably connected to the inner wall of the rotating opening (7911).

4. The laser cutting equipment for double-sided printed circuit boards according to claim 1, characterized in that: The feeding mechanism (15) includes a second slide rail (151), a second sliding block (152) is slidably connected to the inner wall of the second slide rail (151), a U-shaped frame (153) is fixedly connected to the bottom of the second sliding block (152), a third connecting rod (154) is rotatably connected to the inner wall of the U-shaped frame (153), a first rotating frame (155) is rotatably connected to the end of the third connecting rod (154) away from the U-shaped frame (153), and the end of the first rotating frame (155) away from the third connecting rod (154) rotates. A second rotating frame (156) is connected, and the drive shaft of the first motor (157) is fixedly connected to the end of the second rotating frame (156) away from the first rotating frame (155). A second L-shaped connecting rod (158) is fixedly connected to the side of the second sliding block (152). A push rod (159) is fixedly connected to the end of the second L-shaped connecting rod (158) away from the second sliding block (152). A push plate (1510) is fixedly connected to the end of the push rod (159) away from the second L-shaped connecting rod (158).

5. The laser cutting equipment for double-sided printed circuit boards according to claim 4, characterized in that: The second slide rail (151) is fixedly connected to the bottom of the mounting plate (12), the first motor (157) is fixedly connected to the inner wall of the first bracket (11), and the end of the push rod (159) away from the second L-shaped connecting rod (158) passes through the side of the storage box (13) and is slidably connected to the side of the storage box (13).

6. The laser cutting equipment for double-sided printed circuit boards according to claim 1, characterized in that: The dust removal mechanism (18) includes a dust removal box (181), a filter plate (182) is fixedly connected to the inner wall of the dust removal box (181), filter holes (183) are evenly opened on the top of the filter plate (182), a suction pipe (184) is evenly connected to the top of the dust removal box (181), and the air inlet of the suction pump (185) is connected to the side of the dust removal box (181) below the filter plate (182).

7. The laser cutting equipment for double-sided printed circuit boards according to claim 6, characterized in that: The dust collection box (181) is fixedly connected to the bottom of the inner wall of the cabinet (2) on one side of the fourth bracket (71), and the end of the suction pipe (184) away from the dust collection box (181) is connected to the dust collection hood (17).

8. The laser cutting equipment for double-sided printed circuit boards according to claim 6, characterized in that: The conveying mechanism (8) includes a fixed base (81), a ring bracket (82) is fixedly connected to the top of the fixed base (81), a first connecting bracket (83) is fixedly connected to the bottom of the inner wall of the ring bracket (82), a first rotating rod (84) is rotatably connected to the inner wall of the first connecting bracket (83), a second motor (811) is fixedly connected to the side of the first connecting bracket (83), the drive shaft of the second motor (811) passes through the side of the first connecting bracket (83) and is fixedly connected to the first rotating rod (84), and a first spring (85) is fixedly connected to the top of the first connecting bracket (83). The first spring (85) is fixedly connected to the second connecting bracket (86) at the end away from the first connecting bracket (83). The second spring (87) is fixedly connected to the top of the second connecting bracket (86). The second spring (87) is fixedly connected to the top of the inner wall of the annular bracket (82) at the end away from the second connecting bracket (86). The second rotating rod (88) is rotatably connected to the inner wall of the second connecting bracket (86). A driven guide roller (89) is sleeved and fixedly connected on the second rotating rod (88). An active guide roller (810) is sleeved and fixedly connected on the first rotating rod (84).

9. The laser cutting equipment for double-sided printed circuit boards according to claim 8, characterized in that: The fixed seat (81) is fixedly connected to the bottom of the inner wall of the cabinet (2) on one side of the third bracket (19). The fixed seat (81) is provided in two sets and symmetrically distributed on the bottom of the inner wall of the cabinet (2). The top of the active guide roller (810) is flush with the first discharge port (5).

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