Automatic trimming device for new energy automobile PCB production

Abstract

The invention discloses an automatic trimming device for new energy automobile PCB production, and relates to the technical field of trimming and polishing, the automatic trimming device comprises a bottom plate and a support plate fixedly connected to the upper surface of the bottom plate; the feeding mechanism is used for automatically adapting to feeding work of the PCBs of different sizes, the PCBs of different sizes can be guided by arranging the feeding mechanism, the PCBs can stably enter the inner cavity of the device, and therefore when the sides of the PCBs are trimmed, the PCBs of different sizes can enter the inner cavity of the device, and the PCBs of different sizes can be trimmed more stably. The PCB is enabled to be stably contacted with the polishing mechanism; and the polishing mechanism is used for automatically trimming the PCBs with different thicknesses, by arranging the polishing mechanism, when the edges of the PCBs are trimmed, the upper surfaces and the lower surfaces of the edges of the PCBs can be automatically extruded, and the effect of trimming the burr edges of the PCBs is achieved.

Description

Technical Field

[0001] This invention relates to the field of trimming and polishing technology, specifically to an automated trimming device for the production of PCB circuit boards for new energy vehicles. Background Technology

[0002] New energy vehicle PCBs are crucial carriers of the core electronic systems of electric vehicles, and their design and manufacturing directly affect the overall vehicle performance, safety, and reliability. Compared with traditional automotive PCBs, new energy vehicle PCBs must meet special requirements such as high voltage and high current (400V / 800V platform), high heat dissipation (IGBT module temperature rise control), and strong electromagnetic compatibility (EMC Class 3 standard). Typical applications include high-voltage components such as battery management systems (BMS), motor controllers (MCUs), on-board chargers (OBCs), and DC-DC converters. Multilayer boards (typically 6-12 layers) use FR-4 high-temperature materials or ceramic substrates, combined with thick copper technology (2-8oz) to achieve current carrying capacity. The international standard IPC-6012DA specifies the reliability verification process for automotive electronic PCBs, including stringent tests such as temperature cycling (-40℃~150℃), mechanical vibration (20G acceleration), and damp heat aging (85℃ / 85%RH).

[0003] In the production process of PCB circuit boards for new energy vehicles, uneven edge finishing will directly affect the mechanical stability and electrical performance of the circuit board. Burrs or rough edges may cause interference with other components during assembly, or even scratch cables or adjacent electronic components, increasing the risk of short circuits. Furthermore, rough edges may weaken the structural strength of the PCB, making it prone to microcracks under long-term vibration or impact conditions in vehicles. This can affect the reliability of high-voltage circuits, especially under high-current operating conditions, where edge defects may become induction points for partial discharge or arcing, threatening the safety of the entire vehicle. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: an automated trimming device for the production of PCB circuit boards for new energy vehicles, comprising a base plate and a support plate fixedly connected to the upper surface of the base plate; The feeding mechanism is used to automatically adapt to the feeding of PCB circuit boards of different sizes. By setting the feeding mechanism, PCB circuit boards of different sizes can be guided to enter the inner cavity of the device stably, so that when the edges of the PCB circuit boards are trimmed, the PCB circuit boards can be smoothly contacted with the grinding mechanism. The grinding mechanism is used to automatically trim the edges of PCB circuit boards of different thicknesses. By setting the grinding mechanism, the upper and lower surfaces of the PCB circuit board edge can be automatically squeezed when trimming the edge of the PCB circuit board, thereby enabling the grinding and trimming of the rough edges of PCB circuit boards of different sizes and thicknesses. The feeding mechanism is fixedly connected to the end of the support plate, and the grinding mechanism is fixedly connected to the outer side of the support plate. The grinding mechanism includes a connecting frame, which is fixedly connected to the outer surface of the support plate. A second stepper motor is fixedly connected to the inner wall of the connecting frame. A third rotating rod is installed at the output end of the second stepper motor through a coupling. A bottom extrusion frame is fixedly connected to the top of the third rotating rod. A top extrusion frame is provided directly above the bottom extrusion frame. By setting the second stepper motor, the third rotating rod can drive the bottom extrusion frame to rotate after the power is connected and the switch is turned on.

[0005] Preferably, a discharge mechanism is fixedly connected to the upper surface of the support plate. The discharge mechanism includes a limiting frame, which is fixedly connected to the side of the upper surface of the support plate. Discharge frames are fixedly connected to the inner side of the limiting frame. A first limiting tube is fixedly connected to the outer surface of the discharge frame. A connecting rod is slidably connected to the inner cavity of the first limiting tube. A positioning knob passes through the outer surface of the first limiting tube, and the positioning knob is squeezed and adapted to the outer surface of the connecting rod.

[0006] Preferably, the feeding mechanism includes a first support frame and a limiting frame. The first support frame is fixedly connected to the outer side of the support plate. A first stepper motor is fixedly connected to the upper surface of the first support frame. A first rotating rod is installed at the output end of the first stepper motor through a coupling. The limiting frame is fixedly connected to the outer side of the support plate. The first rotating rod passes through the limiting frame and the support plate.

[0007] Preferably, a first roller is fixedly connected to the end of the first rotating rod, a first hexagonal rod is fixedly connected to the end of the first roller away from the first rotating rod, a first sliding tube is slidably connected to the outer surface of the first hexagonal rod, and a first bevel gear is fixedly connected to the outer surface of the first rotating rod.

[0008] Preferably, a pressing mechanism is fixedly connected to the outer surface of the limiting frame. The pressing mechanism includes a second limiting tube, which is fixedly connected to the outer surface of the limiting frame. A rolling bearing is fixedly connected to the bottom of the inner wall of the second limiting tube. A rotating column is fixedly connected to the inner ring of the rolling bearing. A second bevel gear is fixedly connected to the bottom end of the rotating column. The second bevel gear meshes with a first bevel gear. A spiral blade is fixedly connected to the outer surface of the rotating column.

[0009] Preferably, a piston is slidably connected to the inner cavity of the second limiting tube, a first spring is fixedly connected to the upper surface of the piston, a U-shaped rod is fixedly connected to the upper surface of the piston, the U-shaped rod is slidably connected to the inner cavity of the limiting frame, a second rotating rod is rotatably connected to the end of the U-shaped rod, a second roller is fixedly connected to the end of the second rotating rod, a second hexagonal rod is fixedly connected to the end of the second roller, and a second sliding tube is slidably connected to the outer surface of the second hexagonal rod.

[0010] Preferably, a first grinding ring is fixedly connected to the side of the upper surface of the bottom extrusion frame, a second support frame is fixedly connected to the upper surface of the bottom extrusion frame, a sliding frame is slidably connected to the inner cavity of the second support frame, an inclined plate is fixedly connected to the upper surface of the sliding frame, and a second spring is sleeved on the outer surface of the sliding frame, the second spring being extruded and adapted to the lower surface of the second support frame.

[0011] Preferably, a hexagonal prism is fixedly connected to the center of the upper surface of the bottom extrusion frame, an inner hexagonal tube is slidably connected to the outer surface of the hexagonal prism, the inner hexagonal tube is fixedly connected to the inner ring of the top extrusion frame, a second grinding ring is fixedly connected to the side of the lower surface of the top extrusion frame, a plurality of ventilation holes are opened on the upper surface of the top extrusion frame, and a threaded ring is fixedly connected to the upper surface of the top extrusion frame.

[0012] Preferably, a sliding support frame is slidably connected to the inner cavity of the connecting frame, a threaded tube is penetrating the outer surface of the connecting frame, a threaded column is rotatably connected to the inner cavity of the threaded tube, the threaded column is squeezed and adapted to the outer surface of the sliding support frame, and a slag collection mechanism is fixedly connected to the top of the sliding support frame.

[0013] Preferably, the slag collection mechanism includes a third limiting tube, which is fixedly connected to the top of the sliding support frame. An exhaust valve is fixedly connected to the top of the third limiting tube. A moving tube is slidably connected to the inner cavity of the third limiting tube. A collection box is fixedly connected to the bottom of the moving tube. The collection box is threadedly connected to the inner cavity of a threaded ring. A barrier frame is fixedly connected to the inner wall of the collection box. A positioning ring is fixedly connected to the lower surface of the barrier frame. A sealing ring is fixedly connected to the lower surface of the positioning ring. The sealing ring is extruded and adapted to the upper surface of the top extrusion frame. A filter ring is fixedly connected to the top surface of the inner cavity of the barrier frame.

[0014] This invention provides an automated trimming device for the production of PCB circuit boards for new energy vehicles. It has the following advantages: I. This automated trimming device for the production of PCB circuit boards for new energy vehicles, by setting up a feeding mechanism, can guide PCB circuit boards of different sizes, so that the PCB circuit boards can stably enter the inner cavity of the device, thereby making the PCB circuit boards smoothly contact the grinding mechanism when trimming the edges of the PCB circuit boards.

[0015] II. This automated trimming device for the production of PCB circuit boards for new energy vehicles, by setting up a grinding mechanism, can automatically squeeze the upper and lower surfaces of the PCB circuit board edge when trimming the edge, thereby enabling the grinding and trimming of burrs on the edge of PCB circuit boards of different sizes and thicknesses.

[0016] III. This automated trimming device for the production of PCB circuit boards for new energy vehicles can guide and limit the two sides of the PCB circuit board by setting a limiting frame and a discharge frame, so that the PCB circuit board can be smoothly discharged from the device. By setting a first limiting tube, the connecting rod can be limited, so that the first limiting tube can slide smoothly on the outer surface of the connecting rod, thereby adjusting the distance between the two limiting frames and the discharge frame, thus meeting the trimming work of PCB circuit boards of different sizes.

[0017] IV. This automated trimming device for the production of PCB circuit boards for new energy vehicles can collect the debris generated during the trimming of PCB circuit boards by setting up a slag collection mechanism, thereby preventing the debris from flying around and affecting the circuit of the PCB circuit board. By setting up an exhaust valve, the internal air can be discharged when the air pressure in the inner cavity of the third limit tube reaches a certain threshold, thereby preventing the PCB circuit board from being damaged by excessive downward pressure from the top extrusion frame. By setting up a collection box and a barrier frame, the PCB circuit board debris sucked into the device can be blocked and collected. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of an automated trimming device for the production of PCB circuit boards for new energy vehicles according to the present invention. Figure 2 This is a side view of the structure of an automated trimming device for the production of PCB circuit boards for new energy vehicles according to the present invention. Figure 3 This is a schematic diagram of the material discharge mechanism of the present invention; Figure 4 This is a partial structural diagram of the material discharge mechanism of the present invention; Figure 5 This is a schematic diagram of the feeding mechanism of the present invention; Figure 6 This is a schematic diagram of the extrusion mechanism of the present invention; Figure 7 This is a schematic diagram of the grinding mechanism of the present invention; Figure 8 This is a partial structural diagram of the grinding mechanism of the present invention; Figure 9 This is a schematic cross-sectional view of the grinding mechanism of the present invention; Figure 10 This is a partial cross-sectional structural diagram of the grinding mechanism of the present invention; Figure 11 This is a schematic diagram of the slag collection mechanism of the present invention; Figure 12 This is a schematic cross-sectional view of the slag collection mechanism of the present invention.

[0019] In the diagram: 1. Base plate; 2. Support plate; 3. Discharge mechanism; 4. Feeding mechanism; 5. Grinding mechanism; 31. Limiting frame; 32. Discharge frame; 33. First limiting tube; 34. Connecting rod; 35. Positioning knob; 41. First support frame; 42. First stepper motor; 43. First rotating rod; 44. First bevel gear; 45. Limiting frame; 46. First roller; 47. First hexagonal rod; 48. First sliding tube; 49. Extrusion mechanism; 491. Second limiting tube; 492. Rolling bearing; 493. Rotating column; 494. Second bevel gear; 495. Spiral blade; 496. Piston; 497. First spring; 498. U-shaped rod; 499. Second rotating rod; 4910. Second roller; 4 911. Second hexagonal rod; 4912. Second sliding tube; 51. Connecting frame; 52. Threaded tube; 53. Threaded column; 54. Sliding support frame; 55. Slag collection mechanism; 56. Second stepper motor; 57. Third rotating rod; 58. Bottom extrusion frame; 59. First grinding ring; 510. Second support frame; 511. Sliding frame; 512. Inclined plate; 513. Second spring; 514. Hexagonal prism; 515. Internal hexagonal tube; 516. Top extrusion frame; 517. Second grinding ring; 518. Threaded ring; 551. Third limiting tube; 552. Exhaust valve; 553. Moving tube; 554. Collection box; 555. Barrier frame; 556. Positioning ring; 557. Sealing ring; 558. Filter ring. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0021] like Figures 1-12As shown, the present invention provides a technical solution: an automated trimming device for the production of PCB circuit boards for new energy vehicles, including a base plate 1 and a support plate 2 fixedly connected to the upper surface of the base plate 1; Feeding mechanism 4 is used to automatically adapt to the feeding of PCB circuit boards of different sizes. By setting feeding mechanism 4, PCB circuit boards of different sizes can be guided, so that the PCB circuit boards can enter the inner cavity of the device stably, so that when the edges of the PCB circuit boards are trimmed, the PCB circuit boards can be smoothly contacted with the grinding mechanism 5. The grinding mechanism 5 is used to automatically trim the edges of PCB circuit boards of different thicknesses. By setting the grinding mechanism 5, the upper and lower surfaces of the PCB circuit board edge can be automatically squeezed when trimming the edge of the PCB circuit board, thereby enabling the grinding and trimming of the rough edges of PCB circuit boards of different sizes and thicknesses. The feeding mechanism 4 is fixedly connected to the end of the support plate 2, and the grinding mechanism 5 is fixedly connected to the outer side of the support plate 2; The grinding mechanism 5 includes a connecting frame 51, which is fixedly connected to the outer surface of the support plate 2. A second stepper motor 56 is fixedly connected to the inner wall of the connecting frame 51. A third rotating rod 57 is installed at the output end of the second stepper motor 56 through a coupling. A bottom extrusion frame 58 is fixedly connected to the top of the third rotating rod 57. A top extrusion frame 516 is provided directly above the bottom extrusion frame 58. By setting the second stepper motor 56, the third rotating rod 57 can drive the bottom extrusion frame 58 to rotate after the power is connected and the switch is turned on.

[0022] A discharge mechanism 3 is fixedly connected to the upper surface of the support plate 2. The discharge mechanism 3 includes a limiting frame 31, which is fixedly connected to both sides of the upper surface of the support plate 2. Discharge frames 32 are fixedly connected to the inner sides of the limiting frames 31. A first limiting tube 33 is fixedly connected to the outer surface of the discharge frame 32. A connecting rod 34 is slidably connected to the inner cavity of the first limiting tube 33. A positioning knob 35 passes through the outer surface of the first limiting tube 33. The positioning knob 35 is pressed and fitted to the outer surface of the connecting rod 34. By setting the limiting frame 31 and the discharge frame 32, the two sides of the PCB circuit board can be guided and limited, so that the PCB circuit board can be smoothly discharged from the device. By setting the first limiting tube 33, the connecting rod 34 can be limited, so that the first limiting tube 33 slides smoothly on the outer surface of the connecting rod 34, thereby adjusting the distance between the two limiting frames 31 and the discharge frame 32, thereby meeting the trimming work of PCB circuit boards of different sizes.

[0023] The feeding mechanism 4 includes a first support frame 41 and a limiting frame 45. The first support frame 41 is fixedly connected to the outer side of the support plate 2. A first stepper motor 42 is fixedly connected to the upper surface of the first support frame 41. A first rotating rod 43 is installed at the output end of the first stepper motor 42 through a coupling. The limiting frame 45 is fixedly connected to the outer side of the support plate 2. The first rotating rod 43 passes through the limiting frame 45 and the support plate 2. By setting the first stepper motor 42, the first rotating rod 43 can be rotated after the power is connected and the switch is turned on. A first roller 46 is fixedly connected to the end of the first rotating rod 43. A first hexagonal rod 47 is fixedly connected to the end of the first roller 46 away from the first rotating rod 43. A first sliding tube 48 is slidably connected to the outer surface of the first hexagonal rod 47. A first bevel gear 44 is fixedly connected to the surface. By setting a first roller 46, the first roller 46 can rotate together with the first rotating rod 43 when it rotates, thereby providing a frictional force to the lower surface of the PCB circuit board, achieving the effect of causing the PCB circuit board to move laterally. By setting a first hexagonal rod 47 and a first sliding tube 48, the first roller 46 at one end can rotate, thereby driving the first roller 46 at the other end to rotate, and at the same time, the distance between the two first rollers 46 can change. Since the distance between the two first rollers 46 depends on the distance between the two first limiting tubes 33, after the position of the first limiting tube 33 is adjusted, the first roller 46 will not change in distance. Therefore, the first roller 46 will not move during the polishing process.

[0024] A pressing mechanism 49 is fixedly connected to the outer surface of the limiting frame 45. The pressing mechanism 49 includes a second limiting tube 491, which is fixedly connected to the outer surface of the limiting frame 45. A rolling bearing 492 is fixedly connected to the bottom of the inner wall of the second limiting tube 491. A rotating column 493 is fixedly connected to the inner ring of the rolling bearing 492. A second bevel gear 494 is fixedly connected to the bottom end of the rotating column 493. The second bevel gear 494 meshes with a first bevel gear 44. A spiral blade 495 is fixedly connected to the outer surface of the rotating column 493. By setting the pressing mechanism 49... The system can automatically press the upper surface of the PCB board when it moves, thus preventing the PCB board from becoming loose during trimming and affecting the trimming effect. By setting the rolling bearing 492, the rotating column 493 can rotate with the rotation of the second bevel gear 494, which in turn causes the spiral blade 495 to rotate and generate downward airflow. A piston 496 is slidably connected to the inner cavity of the second limiting tube 491, and a first spring 497 is fixedly connected to the upper surface of the piston 496. The top end of the first spring 497 is fixedly connected to the second limiting tube 491. A U-shaped rod 498 is fixedly connected to the top of the inner wall of the tube 491 and the upper surface of the piston 496. The U-shaped rod 498 is slidably connected to the inner cavity of the limiting frame 45. A second rotating rod 499 is rotatably connected to the end of the U-shaped rod 498. A second roller 4910 is fixedly connected to the end of the second rotating rod 499. A second hexagonal rod 4911 is fixedly connected to the end of the second roller 4910. A second sliding tube 4912 is slidably connected to the outer surface of the second hexagonal rod 4911. By setting the second limiting tube 491, the piston 496 can move vertically up and down in its inner cavity. The movement effect causes the piston 496 to drive the U-shaped rod 498 downward when the spiral blade 495 rotates and the airflow flows downward to form a negative pressure. By setting the second roller 4910, it can contact the upper surface of the PCB circuit board, thereby making the movement of the PCB circuit board more stable. By setting the second hexagonal rod 4911 and the second sliding tube 4912, the second roller 4910 at one end can rotate together with the second roller 4910 at the other end when the second roller 4910 at one end rotates, and the distance between the two second rollers 4910 can be changed.

[0025] A first grinding ring 59 is fixedly connected to the side of the upper surface of the bottom extrusion frame 58. A second support frame 510 is fixedly connected to the upper surface of the bottom extrusion frame 58. A sliding frame 511 is slidably connected to the inner cavity of the second support frame 510. An inclined plate 512 is fixedly connected to the upper surface of the sliding frame 511. A second spring 513 is sleeved on the outer surface of the sliding frame 511. The second spring 513 is extruded and adapted to the lower surface of the second support frame 510. The second spring 513 is sleeved on the outer surface of the sliding frame 511 at a section located on the lower surface of the second support frame 510. The bottom end of the second spring 513 is fixedly connected to the bottom end of the sliding frame 511, and the top end of the second spring 513 is fixedly connected to the lower surface of the second support frame 510. By setting the sliding frame 511, it is possible to... The inclined plate 512 moves up and down, ensuring that the inclined plate 512 remains in contact with the lower surface of the top extrusion frame 516 even as the distance between the bottom extrusion frame 58 and the top extrusion frame 516 changes. This allows for stable airflow during rotation. A first polishing ring 59 is provided, allowing the bottom extrusion frame 58 to rotate while contacting and polishing the lower surface of the PCB circuit board. A hexagonal prism 514 is fixedly connected to the axis of the upper surface of the bottom extrusion frame 58. An inner hexagonal tube 515 is slidably connected to the outer surface of the hexagonal prism 514. The inner hexagonal tube 515 is fixedly connected to the inner ring of the top extrusion frame 516. A second polishing ring 51 is fixedly connected to the side of the lower surface of the top extrusion frame 516. 7. Several ventilation holes are provided on the upper surface of the top extrusion frame 516. A threaded ring 518 is fixedly connected to the upper surface of the top extrusion frame 516. By setting a hexagonal prism 514, the inner hexagonal tube 515 can be limited, so that the inner hexagonal tube 515 moves up and down on the outer surface of the hexagonal prism 514 and rotates together with the rotation of the hexagonal prism 514. By setting the top extrusion frame 516 and the second polishing ring 517, they can contact the upper surface of the PCB circuit board during rotation, thereby realizing the edge trimming work of the PCB circuit board. A sliding support frame 54 is slidably connected to the inner cavity of the connecting frame 51. A threaded tube 52 passes through the outer surface of the connecting frame 51. A threaded post 53 is rotatably connected to the inner cavity of the threaded tube 52. The threaded post 53 and the sliding support frame 54 are slidably connected to the inner cavity of the connecting frame 51. The outer surface of the movable support frame 54 is extruded and adapted. A slag collection mechanism 55 is fixedly connected to the top of the sliding support frame 54. By setting a threaded tube 52 and a threaded column 53, the threaded column 53 can be extruded against the outer surface of the sliding support frame 54 when the threaded column 53 rotates, thereby fixing the sliding support frame 54 to the connecting frame 51. The slag collection mechanism 55 includes a third limiting tube 551, which is fixedly connected to the top of the sliding support frame 54. An exhaust valve 552 is fixedly connected to the top of the third limiting tube 551. A moving tube 553 is slidably connected to the inner cavity of the third limiting tube 551. A collection box 554 is fixedly connected to the bottom end of the moving tube 553. The collection box 554 is threadedly connected to the inner cavity of the threaded ring 518.A baffle frame 555 is fixedly connected to the inner wall of the collection box 554. A positioning ring 556 is fixedly connected to the lower surface of the baffle frame 555, and a sealing ring 557 is fixedly connected to the lower surface of the positioning ring 556. The sealing ring 557 is fitted to the upper surface of the top extrusion frame 516. A filter ring 558 is fixedly connected to the top surface of the inner cavity of the baffle frame 555. By setting the slag collection mechanism 55, the debris generated during PCB circuit board trimming can be collected, thereby preventing debris from flying around and damaging the circuit of the PCB circuit board. By setting the exhaust valve 552, when the air pressure in the inner cavity of the third limit tube 551 reaches a certain threshold, the internal air can be discharged, thereby preventing the top extrusion frame 516 from pressing down too hard and damaging the PCB circuit board. By setting the collection box 554 and the baffle frame 555, the PCB circuit board debris sucked into the box can be blocked and collected. By setting the filter ring 558, the debris can be blocked.

[0026] Working principle: During use, the operator adjusts the distance between the two support plates 2, maintaining the length of the PCB circuit board so that it is positioned precisely between the opposite faces of the two support plates 2. Then, the PCB circuit board to be trimmed is placed on the upper surface of the support plate 2. Next, the first stepper motor 42 is connected to the power supply and the switch is turned on, causing the first rotating rod 43 to drive the first roller 46 to rotate. When the first rotating rod 43 rotates, the first bevel gear 44 meshes with the second bevel gear 494, which in turn causes the rotating column 493 to drive the spiral blade 495 to rotate. Finally... The air inside the second limiting tube 491 flows downward to create negative pressure, causing the piston 496 and U-shaped rod 498 to drive the second roller 4910 downward. While the first roller 46 rotates and the PCB circuit board moves laterally, the second roller 4910 rotates along with the PCB circuit board. Then, the second stepper motor 56 is connected to the power supply and the switch is turned on, causing the third rotating rod 57 to drive the bottom extrusion frame 58 and the first grinding ring 59 to rotate. Simultaneously, the inclined plate 512 rotates, drawing in external air to the bottom extrusion frame 58 and the top... In the space between the extrusion frames 516, during the process, the air pressure inside the collection box 554 increases. Since the bottom extrusion frame 58 is connected to the third rotating rod 57, the bottom extrusion frame 58 is not affected. As the air pressure inside the collection box 554 increases, it pushes the moving tube 553 to slide upward within the third limiting tube 551, and drives the collection box 554, the top extrusion frame 516, and the inner hexagonal tube 515 to move upward. Therefore, the inner hexagonal tube 515 will move upward on the outer surface of the hexagonal prism 514, thus causing the top extrusion frame 516 to tend to move upward, causing the first grinding ring 59 and the second grinding ring to move upward. While 517 is in tight contact with the edge of the PCB circuit board, the first polishing ring 59 and the second polishing ring 517 will not excessively squeeze the PCB circuit board. When the gas pressure inside the collection box 554 is too high and exceeds the threshold set by the exhaust valve 552, the internal air will be discharged from the exhaust valve 552. This prevents the PCB circuit board from being squeezed by the downward pressure generated by the weight of the upper components such as the second polishing ring 517 during the polishing of the edge of the PCB circuit board. It also prevents the PCB circuit board from being damaged by excessive squeezing force. With the airflow, the gas and residue enter the inner cavity of the collection box 554.

[0027] 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. An automated trimming device for the production of PCB circuit boards for new energy vehicles, characterized in that, include: The base plate (1) and the support plate (2) fixedly connected to the upper surface of the base plate (1); Feeding mechanism (4), which is used to automatically adapt to the feeding of PCB circuit boards of different sizes; Grinding mechanism (5), which is used for automatic edge trimming of PCB circuit boards of different thicknesses; The feeding mechanism (4) is fixedly connected to the end of the support plate (2), and the grinding mechanism (5) is fixedly connected to the outer side of the support plate (2); The grinding mechanism (5) includes a connecting frame (51), which is fixedly connected to the outer surface of the support plate (2). A second stepper motor (56) is fixedly connected to the inner wall of the connecting frame (51). A third rotating rod (57) is installed at the output end of the second stepper motor (56) through a coupling. A bottom extrusion frame (58) is fixedly connected to the top of the third rotating rod (57). A top extrusion frame (516) is provided directly above the bottom extrusion frame (58).

2. The automated trimming device for new energy vehicle PCB circuit board production according to claim 1, characterized in that: The upper surface of the support plate (2) is fixedly connected to the discharge mechanism (3). The discharge mechanism (3) includes a limiting frame (31). The limiting frame (31) is fixedly connected to the side of the upper surface of the support plate (2). The inner side of the limiting frame (31) is fixedly connected to the discharge frame (32). The outer surface of the discharge frame (32) is fixedly connected to the first limiting tube (33). The inner cavity of the first limiting tube (33) is slidably connected to the connecting rod (34). The outer surface of the first limiting tube (33) is penetrated by a positioning knob (35). The positioning knob (35) is pressed and adapted to the outer surface of the connecting rod (34).

3. The automated trimming device for new energy vehicle PCB circuit board production according to claim 1, characterized in that: The feeding mechanism (4) includes a first support frame (41) and a limiting frame (45). The first support frame (41) is fixedly connected to the outer side of the support plate (2). A first stepper motor (42) is fixedly connected to the upper surface of the first support frame (41). A first rotating rod (43) is installed at the output end of the first stepper motor (42) through a coupling. The limiting frame (45) is fixedly connected to the outer side of the support plate (2). The first rotating rod (43) passes through the limiting frame (45) and the support plate (2).

4. The automated trimming device for the production of PCB circuit boards for new energy vehicles according to claim 3, characterized in that: The first rotating rod (43) is fixedly connected to the end of the first roller (46), and the first roller (46) is fixedly connected to the end away from the first rotating rod (43) with a first hexagonal rod (47). The outer surface of the first hexagonal rod (47) is slidably connected to a first sliding tube (48), and the outer surface of the first rotating rod (43) is fixedly connected to a first bevel gear (44).

5. The automated trimming device for the production of PCB circuit boards for new energy vehicles according to claim 4, characterized in that: The outer surface of the limiting frame (45) is fixedly connected to a pressing mechanism (49). The pressing mechanism (49) includes a second limiting tube (491). The second limiting tube (491) is fixedly connected to the outer surface of the limiting frame (45). A rolling bearing (492) is fixedly connected to the bottom of the inner wall of the second limiting tube (491). A rotating column (493) is fixedly connected to the inner ring of the rolling bearing (492). A second bevel gear (494) is fixedly connected to the bottom end of the rotating column (493). The second bevel gear (494) meshes with the first bevel gear (44). A spiral blade (495) is fixedly connected to the outer surface of the rotating column (493).

6. The automated trimming device for the production of PCB circuit boards for new energy vehicles according to claim 5, characterized in that: A piston (496) is slidably connected to the inner cavity of the second limiting tube (491). A first spring (497) is fixedly connected to the upper surface of the piston (496). A U-shaped rod (498) is fixedly connected to the upper surface of the piston (496). The U-shaped rod (498) is slidably connected to the inner cavity of the limiting frame (45). A second rotating rod (499) is rotatably connected to the end of the U-shaped rod (498). A second roller (4910) is fixedly connected to the end of the second rotating rod (499). A second hexagonal rod (4911) is fixedly connected to the end of the second roller (4910). A second sliding tube (4912) is slidably connected to the outer surface of the second hexagonal rod (4911).

7. An automated trimming device for the production of PCB circuit boards for new energy vehicles according to claim 6, characterized in that: A first grinding ring (59) is fixedly connected to the side of the upper surface of the bottom extrusion frame (58). A second support frame (510) is fixedly connected to the upper surface of the bottom extrusion frame (58). A sliding frame (511) is slidably connected to the inner cavity of the second support frame (510). An inclined plate (512) is fixedly connected to the upper surface of the sliding frame (511). A second spring (513) is sleeved on the outer surface of the sliding frame (511). The second spring (513) is extruded and adapted to the lower surface of the second support frame (510).

8. An automated trimming device for the production of PCB circuit boards for new energy vehicles according to claim 7, characterized in that: A hexagonal prism (514) is fixedly connected to the center of the upper surface of the bottom extrusion frame (58). An inner hexagonal tube (515) is slidably connected to the outer surface of the hexagonal prism (514). The inner hexagonal tube (515) is fixedly connected to the inner ring of the top extrusion frame (516). A second grinding ring (517) is fixedly connected to the side of the lower surface of the top extrusion frame (516). Several ventilation holes are opened on the upper surface of the top extrusion frame (516). A threaded ring (518) is fixedly connected to the upper surface of the top extrusion frame (516).

9. An automated trimming device for the production of PCB circuit boards for new energy vehicles according to claim 8, characterized in that: A sliding support frame (54) is slidably connected to the inner cavity of the connecting frame (51). A threaded tube (52) penetrates the outer surface of the connecting frame (51). A threaded column (53) is rotatably connected to the inner cavity of the threaded tube (52). The threaded column (53) is squeezed and adapted to the outer surface of the sliding support frame (54). A slag collection mechanism (55) is fixedly connected to the top of the sliding support frame (54).

10. An automated trimming device for the production of PCB circuit boards for new energy vehicles according to claim 9, characterized in that: The slag collection mechanism (55) includes a third limiting tube (551), which is fixedly connected to the top of the sliding support frame (54). An exhaust valve (552) is fixedly connected to the top of the third limiting tube (551). A moving tube (553) is slidably connected to the inner cavity of the third limiting tube (551). A collection box (554) is fixedly connected to the bottom of the moving tube (553). The collection box (554) is threadedly connected to the inner cavity of the threaded ring (518). A barrier frame (555) is fixedly connected to the inner wall of the collection box (554). A positioning ring (556) is fixedly connected to the lower surface of the barrier frame (555). A sealing ring (557) is fixedly connected to the lower surface of the positioning ring (556). The sealing ring (557) is squeezed and adapted to the upper surface of the top extrusion frame (516). A filter ring (558) is fixedly connected to the top surface of the inner cavity of the barrier frame (555).

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