Router PCB board testing machine

Abstract

This invention belongs to the technical field of PCB board testing equipment, specifically a router PCB board testing machine. Addressing the problems of existing systems requiring multiple workers to coordinate loading and unloading, continuous manual addition of components, and neat stacking of PCB boards, the present invention proposes the following solution: A workbench with two horizontal plates slidably connected to its top. The top of the workbench has a PCB board placement trough, with the two horizontal plates located on either side of the trough. A first U-shaped frame is fixedly connected to the top of the workbench, and a first cylinder is fixedly connected to the inner wall of the top of the first U-shaped frame. In this invention, the PCB board can be automatically transported through the cooperation of a material handling structure, a conveying structure, and a limiting structure. The loading operation can be completed with only the first cylinder, simplifying operation, improving loading efficiency, and reducing equipment and testing costs. Furthermore, the collection structure allows for the automatic stacking of tested PCB boards.

Description

Technical Field

[0001] This invention relates to the field of PCB board testing equipment technology, and more particularly to a router PCB board testing machine. Background Technology

[0002] The internal components of a router mainly consist of RAM (Random Access Memory), NVRAM (Non-Volatile RAM), FLASH (Fast Flash Memory), ROM (Read-Only Memory), CPU (Central Processing Unit), and a backplane. Each component is mounted on a PCB board and works with software to implement corresponding functions. To ensure the router functions properly, the PCB board needs to be tested.

[0003] There are still some shortcomings in existing technologies for bone fragmentation:

[0004] 1. In the existing technology, when testing PCB boards, the PCB boards need to be placed on a conveyor belt, which transports the PCB boards to the probe positions for testing. After testing, the PCB boards still need to be removed manually. Therefore, multiple workers are required to cooperate in loading and unloading, which not only results in low testing efficiency but also consumes a lot of manpower and increases labor costs.

[0005] 2. In addition, during manual unloading, in order to facilitate the transportation of PCB boards later, the staff need to stack the PCB boards neatly during the unloading process.

[0006] To address the aforementioned issues, this invention proposes a router PCB board testing machine. Summary of the Invention

[0007] The purpose of this invention is to solve the shortcomings of existing technologies that require multiple workers to cooperate in feeding and unloading materials, require manual continuous addition of bones, and require workers to neatly stack PCB boards. Therefore, this invention proposes a router PCB board testing machine.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A router PCB board testing machine includes a workbench with two horizontal plates slidably connected to the top of the workbench. The top of the workbench is provided with a material feeding groove for placing PCB boards, and the two horizontal plates are respectively located on both sides of the material feeding groove. A first U-shaped frame is fixedly connected to the top of the workbench, and a first cylinder is fixedly connected to the inner wall of the top of the first U-shaped frame. Two machine frames are fixedly connected to the top of the workbench, and a rubber conveyor belt is provided between the two machine frames.

[0010] The material handling structure is located inside the first U-shaped frame and is used to automatically pick up multiple PCB boards from the material feeding slot;

[0011] The detection structure is set on top of the workbench for automatic detection of PCB boards;

[0012] The collection structure, set between two racks, is used to automatically stack PCBs after testing.

[0013] The two frames respectively penetrate the detection structure and the collection structure.

[0014] In one possible design, the material handling structure includes sliding plates slidably connected to the inner walls of a first U-shaped frame, located away from each other. Limiting rods slide through both sliding plates, and the bottom ends of the two limiting rods are fixedly connected to the same lifting plate. The output shaft of a first cylinder is fixedly connected to the top of the lifting plate. Multiple first tension springs are fixedly connected to both sides of the top of the lifting plate, and the tops of the multiple first tension springs are fixedly connected to the bottom of the corresponding sliding plate. The bottom of the lifting plate is provided with multiple vacuum suction cups for adsorbing PCB boards. The bottoms of both sliding plates are rotatably connected to connecting... The rod and the bottom end of the connecting rod are rotatably connected to the top of the corresponding horizontal plate. A push rod is fixedly connected to the bottom of one of the sliding plates. The feeding groove is provided with a conveying structure for automatically conveying the PCB board upward. The conveying structure can convey the top PCB board to the same height. The first cylinder pushes the lifting plate and the sliding plate downward. During the downward movement of the sliding plate, the connecting rod pushes the horizontal plate to move outward, which facilitates the vacuum suction cup to remove the PCB board from the feeding groove later. When the connecting rod is in a horizontal state, the lifting plate continues to move downward, which facilitates the vacuum suction cup to pick up the top PCB board.

[0015] In one possible design, the detection structure includes a second U-shaped frame fixedly connected to the top of the workbench, with the second U-shaped frame located to one side of the first U-shaped frame. A second cylinder is fixedly connected to the inner top wall of the second U-shaped frame, and the output shaft of the second cylinder is fixedly connected to an upper detection plate. A hydraulic cylinder located between two rubber conveyor belts is fixedly connected to the top of the workbench. A lifting rod is slidably connected within the hydraulic cylinder, and a lower detection plate is fixedly connected to the top of the lifting rod. Multiple probes for testing the PCB board are provided on the sides of the lower and upper detection plates that are close to each other. Hydraulic pipes connected to hydraulic cylinders are fixedly installed inside the frame. A sliding rod is slidably connected to the top of each hydraulic pipe, and the sliding rod cooperates with the upper detection plate. The output shaft of the second cylinder pushes the upper detection plate downward, and the upper detection plate squeezes the sliding rod. Hydraulic oil in the hydraulic pipe enters the hydraulic cylinder. Under the action of the hydraulic oil, the lifting rod drives the lower detection plate upward. Then, the lower detection plate and the upper detection plate approach each other. When the lower detection plate pushes the PCB board off the rubber conveyor belt, the probes on both the upper and lower detection plates are released from the PCB board. At this time, the PCB board can be tested through the probes.

[0016] In one possible design, the collecting structure includes two L-shaped limiting plates fixedly connected to the adjacent sides of two racks. A baffle for limiting the PCB board is provided between the two racks. A third cylinder located between the two L-shaped limiting plates is fixedly connected to the top of the workbench. The output shaft of the third cylinder is fixedly connected to a second support plate that lifts the PCB board. Multiple rectangular slots are provided on the adjacent sides of the two L-shaped limiting plates. A trapezoidal plate that lifts the PCB board is slidably connected in the rectangular slot. A second spring is fixedly connected to one side of the trapezoidal plate, and the other end of the second spring is fixedly connected to the inner wall of one side of the rectangular slot. The output shaft of the third cylinder pushes the second support plate to move upward, and the second support plate lifts the PCB board. When the PCB board moves above the trapezoidal plate, the trapezoidal plate lifts the PCB board with the cooperation of the second spring. Then the second support plate moves downward to reset until the next PCB board arrives. Then the second support plate can lift the PCB board again, thereby automatically stacking multiple PCB boards vertically without manual stacking.

[0017] In one possible design, a first conveyor roller and a second conveyor roller are rotatably connected to the sides of the two horizontal plates that are close to each other. The first and second conveyor rollers on the same side are connected by a rubber conveyor belt. A slide rod is rotatably connected to the top of the worktable via a base. One end of the slide rod slides through the two horizontal plates and the second conveyor roller. A motor is provided on the top of the worktable, and the output shaft of the motor is fixedly connected to one end of the slide rod via a coupling. The slide rod is driven to rotate by the motor, and it can not only drive the rubber conveyor belt to run, but also drive the rubber conveyor belt to run when the horizontal plates move.

[0018] In one possible design, the conveying structure includes a first pallet slidably disposed within a discharge trough, the first pallet supporting multiple stacked PCBs. An L-shaped hydraulic channel is provided within the workbench, and this L-shaped hydraulic channel is connected to the discharge trough. A piston plate cooperating with a push rod is slidably and sealingly connected to the top of the L-shaped hydraulic channel. A piston rod extending into the discharge trough is slidably and sealingly connected to the other end of the L-shaped hydraulic channel. A second tension spring is fixedly connected to one inner wall of the L-shaped hydraulic channel, and the other end of the second tension spring is fixedly connected to the piston rod. Multiple sliding seats are slidably connected to the bottom inner wall of the discharge trough. A rotating rod is rotatably connected within each sliding seat, and the top of the rotating rod is rotatably connected to the bottom of the first pallet. A second rack is fixedly connected to the side of each sliding seat near the L-shaped hydraulic channel, and the second rack is slidably connected to the bottom inner wall of the discharge trough. The discharge trough is rotatably connected via a base. A rotating shaft is connected to the device. A one-way bearing is fixed to the outer wall of the rotating shaft. A first gear is fixed to the outer wall of the one-way bearing. A first rack that meshes with the first gear is fixedly connected to one end of the piston rod. Multiple second gears are fixedly sleeved on the outer wall of the rotating shaft, and the second gears mesh with the second rack. The bottom inner wall of the feeding trough is provided with multiple sets of limiting structures for limiting the sliding seat. The push rod pushes the piston plate, which causes the piston rod to push the first rack to one side. The first rack, through the cooperation of the one-way bearing and the first gear, can drive the second gear to rotate. Then, the second gear pushes one end of the sliding seat through the second rack. The rotating rod can push the first support plate upward a certain distance. Therefore, each time the push rod squeezes the piston plate, it can move the first support plate up a certain distance. Thus, the first support plate can move the PCB board to the same height, which is convenient for the vacuum suction cup to pick up the PCB board, and thus easily completes the loading of the PCB board.

[0019] In one possible design, the limiting structure includes multiple slots on the inner wall of the bottom of the discharge trough. The bottom of the sliding seat has a sliding groove, and a trapezoidal iron pin that engages with the slots is slidably connected within the groove. A first spring is fixedly connected to the top of the trapezoidal iron pin, and the top of the first spring is fixedly connected to the inner wall of the top of the groove. A ring-shaped electromagnet that magnetically attracts the trapezoidal iron pin is fixedly connected to the inner wall of the top of the groove. When the second rack pushes the sliding seat to move, the engagement of the trapezoidal iron pin with the groove brakes the moved sliding seat, preventing the first support plate from dislodging. Now, after the PCB board on the first pallet is removed, the annular electromagnet is activated. The magnetic attraction of the annular electromagnet to the iron trapezoidal pin is much greater than the elastic force of the first spring. The iron trapezoidal pin is released from its engagement with the slot, and the first pallet can move down and reset. The second rack can drive the second gear and the rotating shaft to rotate. Since the first rack and the first gear disengaged when the piston rod and the first rack were reset, the second gear and the rotating shaft rotate freely. The limiting structure can not only be used for feeding the PCB board from the first pallet, but also reset the first pallet to facilitate feeding the next time.

[0020] In one possible design, the bottom inner wall of the feeding trough is fixedly connected with multiple fixing columns, and the top of the fixing columns is fixedly connected with a rubber pad; the fixing columns can limit the position of the first pallet.

[0021] In one possible design, the bottom of the lower detection plate is fixedly connected with multiple pins, and the top of the worktable is fixedly connected with multiple fixing sleeves, with the pins and fixing sleeves slidingly engaged. When the lower detection plate lifts the PCB board, the engagement of the pins and fixing sleeves can prevent the PCB board from tilting, thus avoiding affecting the probe's testing of the PCB board.

[0022] In one possible design, the baffle is rotatably connected between two frames via a circular shaft, and the baffle is located above the rubber conveyor belt. One side of the baffle has an L-shaped right-angle plate that slides and engages with a slider via a slide rail. The top of the frame is provided with a limiting groove that engages with the L-shaped right-angle plate. When the PCB boards are stacked to a certain height, the L-shaped right-angle plate is moved, disengaging from the sliding engagement with the baffle and releasing the brake on the baffle. Then, the baffle is rotated clockwise, releasing the baffle from obstructing multiple PCB boards. Then, the operator can move the stacked PCB boards at once.

[0023] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the invention.

[0024] In this invention, the output shaft of the first cylinder is fixedly connected to a lifting plate. The top of the lifting plate is elastically connected to the bottom of the two sliding plates through multiple first tension springs. The bottom of each of the two sliding plates is rotatably connected to a connecting rod, and the bottom end of the connecting rod is rotatably connected to the top of the corresponding horizontal plate. The first cylinder pushes the lifting plate and the sliding plate downward, and the sliding plate pushes the horizontal plate outward through the connecting rod. Through the material picking structure, the PCB board can be automatically picked up and placed on the rubber conveyor belt for conveying. The PCB board loading operation can be completed without manual intervention.

[0025] In this invention, multiple sliding seats are slidably connected to the bottom inner wall of the feeding trough. The sliding seats are rotatably connected to the first pallet via a rotating rod. A second rack is fixedly connected to the side of the sliding seat near the L-shaped hydraulic channel, and the second rack is slidably connected to the bottom inner wall of the feeding trough. A one-way bearing is fixed to the outer wall of the rotating shaft, and a first gear is fixed to the outer wall of the one-way bearing. Multiple second gears are fixedly sleeved on the outer wall of the rotating shaft. The first rack can drive the second gear to rotate through the cooperation of the one-way bearing and the first gear. Then, the second gear pushes one end of the sliding seat through the second rack. The rotating rod can push the first pallet upward a certain distance. Through the conveying structure, the first pallet can be moved up the same distance, and the PCB board can be moved to the same height, which facilitates the adsorption of the PCB board by the vacuum suction cup, thereby easily completing the loading of the PCB board.

[0026] In this invention, an iron trapezoidal pin is slidably connected within the chute, and a ring electromagnet that magnetically attracts the iron trapezoidal pin is fixedly connected to the top inner wall of the chute. When the second rack pushes the sliding seat to move, the engagement between the iron trapezoidal pin and the chute brakes the moved sliding seat, preventing the first pallet from resetting. Additionally, activating the ring electromagnet causes the iron trapezoidal pin to move upward, releasing its engagement with the slot, allowing the first pallet to move downward and reset. This limiting structure serves two purposes: it limits the first pallet for subsequent vacuum suction cup adsorption of the PCB board, and it also resets the first pallet for the next feeding cycle. The operation is simple, improving feeding efficiency.

[0027] In this invention, each of the two L-shaped limiting plates has multiple rectangular grooves on one side that is close to each other, and a trapezoidal plate that supports the PCB board is slidably connected in the rectangular grooves; through the collection structure, not only can the PCB board after the test be automatically unloaded, but the PCB board can also be stacked without manual stacking, thereby improving work efficiency and reducing labor costs.

[0028] In this invention, the PCB board can be automatically transported by the combination of the material picking structure, the conveying structure and the limiting structure. The loading operation can be completed by only the first cylinder, which is simple to operate, improves loading efficiency, and reduces equipment and testing costs. In addition, the collection structure can automatically stack the PCB boards after testing, which is convenient for the unified handling of multiple PCB boards in the later stage and reduces labor costs. Attached Figure Description

[0029] Figure 1 This is a first-view three-dimensional structural diagram of a router PCB board testing machine provided in Embodiment 1 of the present invention;

[0030] Figure 2 This is a second-view three-dimensional structural diagram of a router PCB board testing machine provided in Embodiment 1 of the present invention;

[0031] Figure 3 This is a side cross-sectional view of the workbench of a router PCB board testing machine provided in Embodiment 1 of the present invention;

[0032] Figure 4 This is a three-dimensional exploded view of a router PCB board testing machine provided in Embodiment 1 of the present invention;

[0033] Figure 5 This is a three-dimensional exploded view of the first tray and rotating rod of a router PCB board testing machine provided in Embodiment 1 of the present invention;

[0034] Figure 6 This is a three-dimensional exploded view of the horizontal plate, slide bar, and second conveying roller of a router PCB board testing machine provided in Embodiment 1 of the present invention;

[0035] Figure 7 This is a three-dimensional exploded view of the first U-shaped frame, sliding plate, and lifting plate of a router PCB board testing machine provided in Embodiment 1 of the present invention;

[0036] Figure 8 This is a three-dimensional exploded view of the detection structure of a router PCB board testing machine provided in Embodiment 1 of the present invention;

[0037] Figure 9 This is a three-dimensional exploded view of the collection structure of a router PCB board tester provided in Embodiment 1 of the present invention;

[0038] Figure 10 This is a front view schematic diagram of the third cylinder of a router PCB board testing machine provided in Embodiment 2 of the present invention;

[0039] Figure 11 This is an enlarged structural diagram of point A of a router PCB board testing machine provided in Embodiment 2 of the present invention.

[0040] In the diagram: 1. Workbench; 2. First U-shaped frame; 3. Second U-shaped frame; 4. Collection structure; 5. Horizontal plate; 6. First conveyor roller; 7. Second conveyor roller; 8. Rubber conveyor belt; 9. Slide bar; 10. Discharge chute; 11. First pallet; 12. PCB board; 13. First cylinder; 14. Lifting plate; 15. Vacuum suction cup; 16. Sliding plate; 17. First tension spring; 18. Limiting rod; 19. Connecting rod; 20. Push rod; 21. L-shaped hydraulic channel; 22. Piston plate; 23. Piston rod; 24. Rotating rod; 25. Sliding seat; 26. Rotating shaft; 27. One-way bearing; 28. First gear; 29. ​​First rack; 30. Second... 31. Gear; 32. Second rack; 33. Slide groove; 34. First spring; 35. Ring electromagnet; 36. Iron trapezoidal pin; 37. Slot; 38. Second cylinder; 39. Upper detection plate; 40. Hydraulic cylinder; 41. Lifting rod; 42. Lower detection plate; 43. Probe; 44. Hydraulic pipe; 45. Sliding rod; 46. Third cylinder; 47. Second support plate; 48. L-shaped limiting plate; 49. Rectangular groove; 50. Second spring; 51. Trapezoidal plate; 52. Baffle; 53. Frame; 54. Rubber conveyor belt; 55. Fixed column; 56. L-shaped right angle plate; 57. Limiting groove; 58. Fixed sleeve; 59. Pin; 50. Second tension spring. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] Example 1

[0043] Reference Figures 1-9 A router PCB board testing machine, which is used in the field of PCB board testing equipment, includes a workbench 1. Two horizontal plates 5 are slidably connected to the top of the workbench 1. The top of the workbench 1 is provided with a feeding groove 10 for placing PCB boards 12, and the two horizontal plates 5 are respectively located on both sides of the feeding groove 10. A first U-shaped frame 2 is fixedly connected to the top of the workbench 1 by bolts. A first cylinder 13 is fixedly connected to the inner wall of the top of the first U-shaped frame 2 by bolts. Two machine frames 52 are fixedly connected to the top of the workbench 1 by bolts. A rubber conveyor belt 53 is provided between the two machine frames 52.

[0044] Reference Figure 4 and Figure 6Two horizontal plates 5 are rotatably connected to a first conveyor roller 6 and a second conveyor roller 7 on their adjacent sides. The first conveyor roller 6 and the second conveyor roller 7 on the same side are connected by a rubber conveyor belt 8. A slide rod 9 is rotatably connected to the top of the workbench 1 through a base. One end of the slide rod 9 slides through the two horizontal plates 5 and the second conveyor roller 7. A motor is provided on the top of the workbench 1, and the output shaft of the motor is fixedly connected to one end of the slide rod 9 through a coupling. The slide rod 9 is driven to rotate by the motor. The slide rod 9 can not only drive the rubber conveyor belt 8 to run, but also drive the rubber conveyor belt 8 to run when the horizontal plates 5 move.

[0045] Reference Figure 3 , Figure 4 and Figure 7 The testing machine also includes a material-retrieving structure set inside the first U-shaped frame 2, used to automatically remove multiple PCB boards 12 from the feeding slot 10. The material-retrieving structure includes sliding plates 16 slidably connected to the inner walls of the first U-shaped frame 2, which are far apart from each other. Limiting rods 18 slide through both sliding plates 16. The bottom ends of the two limiting rods 18 are fixedly connected to the same lifting plate 14 by bolts. The output shaft of the first cylinder 13 is fixedly connected to the top of the lifting plate 14 by bolts. Multiple first tension springs 17 are fixedly connected to both sides of the top of the lifting plate 14. The tops of the multiple first tension springs 17 are fixedly connected to the bottoms of the corresponding sliding plates 16. The bottom of the lifting plate 14 is provided with multiple vacuum suction cups 15 for adsorbing the PCB boards 12. Each movable plate 16 has a connecting rod 19 rotatably connected to its bottom, and the bottom end of the connecting rod 19 is rotatably connected to the top of the corresponding horizontal plate 5. The bottom of one of the sliding plates 16 is fixedly connected to a push rod 20 by bolts. The material discharge trough 10 is provided with a conveying structure for automatically conveying the PCB board 12 upward, and the conveying structure can convey the top PCB board 12 to the same height. The first cylinder 13 pushes the lifting plate 14 and the sliding plate 16 downward, and during the downward movement of the sliding plate 16, the connecting rod 19 pushes the horizontal plate 5 to move outward, so that the vacuum suction cup 15 can take the PCB board 12 out of the material discharge trough 10 later. When the connecting rod 19 is in a horizontal state, the lifting plate 14 continues to move downward, so that the vacuum suction cup 15 can adsorb the top PCB board 12.

[0046] Reference Figure 3 and Figure 5The conveying structure includes a first pallet 11 slidably disposed within the discharge trough 10, which supports multiple stacked PCB boards 12. An L-shaped hydraulic channel 21 is provided within the workbench 1, and the L-shaped hydraulic channel 21 is connected to the discharge trough 10. A piston plate 22, which cooperates with a push rod 20, is slidably and sealed at the top of the L-shaped hydraulic channel 21. A piston rod 23 extending into the discharge trough 10 is slidably and sealed at the other end of the L-shaped hydraulic channel 21. A second pull rod is fixedly connected to the inner wall of one side of the L-shaped hydraulic channel 21. Spring 59, and the other end of the second tension spring 59 is fixedly connected to the piston rod 23. Multiple sliding seats 25 are slidably connected to the bottom inner wall of the discharge trough 10. A rotating rod 24 is rotatably connected inside the sliding seat 25, and the top end of the rotating rod 24 is rotatably connected to the bottom of the first support plate 11. A second rack 31 is bolted to the side of the sliding seat 25 near the L-shaped hydraulic channel 21, and the second rack 31 is slidably connected to the bottom inner wall of the discharge trough 10. A rotating shaft 26 is rotatably connected inside the discharge trough 10 via a base. A one-way bearing 27 is fixed to the outer wall, and a first gear 28 is fixed to the outer wall of the one-way bearing 27. A first rack 29 that meshes with the first gear 28 is fixedly connected to one end of the piston rod 23. Multiple second gears 30 are fixedly sleeved on the outer wall of the rotating shaft 26, and the second gears 30 mesh with the second rack 31. Multiple sets of limiting structures for limiting the sliding seat 25 are provided on the bottom inner wall of the discharge trough 10. The push rod 20 pushes the piston plate 22, which enables the piston rod 23 to push the first rack 29 to one side. The first rack 29 is connected by a single... The cooperation between the bearing 27 and the first gear 28 can drive the second gear 30 to rotate. The second gear 30 then pushes one end of the sliding seat 25 through the second rack 31. The rotating rod 24 can push the first support plate 11 upward a certain distance. Therefore, each time the pushing rod 20 squeezes the piston plate 22, it can move the first support plate 11 upward a certain distance. Thus, the first support plate 11 can move the PCB board 12 to the same height, which facilitates the vacuum suction cup 15 to adsorb the PCB board 12, thereby easily completing the loading of the PCB board 12.

[0047] Reference Figure 3 and Figure 5The limiting structure includes multiple slots 36 set on the inner wall of the bottom of the feeding trough 10. The bottom of the sliding seat 25 is provided with a sliding groove 32. An iron trapezoidal pin 35 that engages with the slots 36 is slidably connected in the sliding groove 32. A first spring 33 is fixedly connected to the top of the iron trapezoidal pin 35, and the top of the first spring 33 is fixedly connected to the top inner wall of the sliding groove 32. A ring electromagnet 34 that magnetically attracts the iron trapezoidal pin 35 is fixedly connected to the top inner wall of the sliding groove 32 by bolts. When the second rack 31 pushes the sliding seat 25 to move, the cooperation between the iron trapezoidal pin 35 and the sliding groove 32 can brake the moved sliding seat 25 to prevent the first support plate 11 from resetting. In addition, when the first After the PCB board 12 on the pallet 11 is removed, the annular electromagnet 34 is activated. The magnetic attraction of the annular electromagnet 34 to the iron trapezoidal pin 35 is much greater than the elastic force of the first spring 33. The iron trapezoidal pin 35 is released from the engagement with the slot 36, and the first pallet 11 can move down and reset. The second rack 31 can drive the second gear 30 and the rotating shaft 26 to rotate. Since the first rack 29 disengaged from the first gear 28 when the piston rod 23 and the first rack 29 were reset, the second gear 30 and the rotating shaft 26 rotate freely. The limiting structure can not only be used for feeding the PCB board 12 from the first pallet 11, but also reset the first pallet 11 to facilitate the next feeding.

[0048] Reference Figure 3 and Figure 4 The bottom inner wall of the material discharge trough 10 is fixedly connected with multiple fixing posts 54 by bolts, and the top of the fixing posts 54 is fixedly connected with rubber pads; the fixing posts 54 can limit the first pallet 11.

[0049] Reference Figure 4 and Figure 8The testing machine also includes a detection structure mounted on top of the workbench 1 for automatically inspecting the PCB board 12. The detection structure includes a second U-shaped frame 3 bolted to the top of the workbench 1, located to one side of the first U-shaped frame 2. A second cylinder 37 is bolted to the inner top wall of the second U-shaped frame 3. The output shaft of the second cylinder 37 is bolted to an upper detection plate 38. A hydraulic cylinder 39, located between two rubber conveyor belts 53, is bolted to the top of the workbench 1. A lifting rod 40 is slidably connected within the hydraulic cylinder 39. A lower detection plate 41 is fixedly connected to the top of the lifting rod 40. Multiple testing devices for the PCB board 12 are provided on the sides of the lower detection plate 41 and the upper detection plate 38 that are close to each other. The probe 42 is fixedly inserted into both frames 52, and a hydraulic pipe 43 connected to the hydraulic cylinder 39 is fixedly inserted through it. The top end of the hydraulic pipe 43 is slidably connected to a sliding rod 44, and the sliding rod 44 cooperates with the upper detection plate 38. The output shaft of the second cylinder 37 pushes the upper detection plate 38 to move down, and the upper detection plate 38 squeezes the sliding rod 44. The hydraulic oil in the hydraulic pipe 43 enters the hydraulic cylinder 39. The lifting rod 40 drives the lower detection plate 41 to move up under the action of the hydraulic oil. Then the lower detection plate 41 and the upper detection plate 38 approach each other. When the lower detection plate 41 pushes the PCB board 12 out of the rubber conveyor belt 53, the probes 42 on the upper detection plate 38 and the lower detection plate 41 are released from the PCB board 12. At this time, the PCB board 12 can be tested through the probes 42.

[0050] Reference Figure 8 The bottom of the lower detection plate 41 is fixedly connected with multiple pins 58 by bolts, and the top of the worktable 1 is fixedly connected with multiple fixing sleeves 57 by bolts, and the pins 58 and the fixing sleeves 57 slide in fit; when the lower detection plate 41 lifts the PCB board 12, the cooperation between the pins 58 and the fixing sleeves 57 can prevent the PCB board 12 from tilting, so as to affect the probe 42's test of the PCB board 12.

[0051] Reference Figure 2 and Figure 9The testing machine also includes a collection structure 4 disposed between two racks 52 for automatically stacking PCB boards 12 after testing. The collection structure 4 includes two L-shaped limiting plates 47 fixedly connected to the adjacent sides of the two racks 52. A baffle 51 for limiting the PCB boards 12 is provided between the two racks 52. A third cylinder 45 located between the two L-shaped limiting plates 47 is fixedly connected to the top of the workbench 1. A second support plate 46 for lifting the PCB boards 12 is fixedly connected to the output shaft of the third cylinder 45. Multiple rectangular slots 48 are provided on the adjacent sides of the two L-shaped limiting plates 47, and supports for lifting the PCB boards 12 are slidably connected within the rectangular slots 48. A trapezoidal plate 50 is fixedly connected to one side of a second spring 49, and the other end of the second spring 49 is fixedly connected to the inner wall of one side of a rectangular groove 48. The output shaft of the third cylinder 45 pushes the second support plate 46 upward, and the second support plate 46 lifts the PCB board 12. When the PCB board 12 moves above the trapezoidal plate 50, the trapezoidal plate 50 lifts the PCB board 12 with the cooperation of the second spring 49. Then the second support plate 46 moves downward to reset until the next PCB board 12 arrives. Then the second support plate 46 can lift the PCB board 12 again, thereby automatically stacking multiple PCB boards 12 vertically without manual stacking.

[0052] Reference Figure 1 and Figure 2 Two racks 52 pass through the detection structure and the collection structure 4 respectively.

[0053] Example 2

[0054] refer to Figure 10 and Figure 11 An improvement based on Embodiment 1: Baffle 51 is rotatably connected between two frames 52 via a circular shaft, and baffle 51 is located above the rubber conveyor belt 53. One side of baffle 51 is slidably fitted with an L-shaped right-angle plate 55 via a slide rail. The top of the frame 52 is provided with a limiting groove 56 that engages with the L-shaped right-angle plate 55. When the PCB boards 12 are stacked to a certain height, the L-shaped right-angle plate 55 is moved at this time, and the L-shaped right-angle plate 55 disengages from the sliding fit with baffle 51, releasing the brake on baffle 51. Then, baffle 51 is rotated clockwise, and baffle 51 releases its obstruction of multiple PCB boards 12. Then, the workers can transport the stacked multiple PCB boards 12 at one time.

[0055] In this invention, probe 42 is the same model as the probe in the invention with publication number CN210199254U.

[0056] A method for using a router PCB board testing machine includes the following steps:

[0057] S1. Place the PCB board 12 to be tested on the first tray 11, and start the first cylinder 13. The first cylinder 13 pushes the lifting plate 14 down. The lifting plate 14 drives the sliding plate 16 down through the first tension spring 17. During the downward movement of the sliding plate 16, the horizontal plate 5 is pushed outward through the connecting rod 19, which facilitates the subsequent removal of the PCB board 12 from the discharge slot 10 by the vacuum suction cup 15. In addition, when the connecting rod 19 is in a horizontal state, the push rod 20 can push the piston plate 22 down a certain distance. The piston rod 23 moves to the left under the action of the piston plate 22. The piston rod 23 pushes... The first rack 29 moves and meshes with the first gear 28. The first gear 28 and the one-way bearing 27 drive the rotating shaft 26 to rotate clockwise. At this time, the one-way bearing 27 and the rotating shaft 26 are locked. The rotating shaft 26 pushes the sliding seat 25 to move through the cooperation of the second gear 30 and the second rack 31. Then the sliding seat 25 pushes the first support plate 11 upward through the rotating rod 24. The lifting plate 14 continues to move downward. The first tension spring 17 begins to be in a stretched state. The first support plate 11 drags the PCB board 12 upward, so that the vacuum suction cup 15 can pick up the top PCB board 12.

[0058] S2. When the vacuum suction cup 15 moves the PCB board 12 upward and resets, when the PCB board 12 is above the rubber conveyor belt 8, the horizontal plate 5 moves to the center and resets under the cooperation of the sliding plate 16 and the connecting rod 19, releasing the vacuum suction cup 15 from adsorbing the PCB board 12. The PCB board 12 falls onto the two rubber conveyor belts 8. In addition, the push rod 20 releases the push on the piston plate 22, and the piston rod 23 resets under the tension of the second tension spring 59. The piston rod 23 drives the first rack 29 to move to the right. The first rack 29 drives the first gear 28 and the one-way bearing 27 to rotate. The rotating shaft 26 and the one-way bearing 27 are released from the locked state. In addition, the function of the first spring 33 can make the slot 36 engage with the iron trapezoidal pin 35, braking the sliding seat 25 and preventing the first support plate 11 from falling downward.

[0059] S3. Then the lifting plate 14 moves up and down repeatedly, which can drive the first pallet 11 to move up step by step, thereby keeping the uppermost PCB board 12 on the first pallet 11 at a certain height, so that the vacuum suction cup 15 can adsorb the PCB board 12. Therefore, the PCB board 12 can be automatically clamped on the rubber conveyor belt 8 for transportation.

[0060] S4. The rubber conveyor belt 8 smoothly conveys the PCB board 12 onto the rubber transmission belt 53. The rubber transmission belt 53 conveys the PCB board 12 directly above the lower detection plate 41. The second cylinder 37 is activated, and the output shaft of the second cylinder 37 pushes the upper detection plate 38 downward. The upper detection plate 38 squeezes the sliding rod 44, and the hydraulic oil in the hydraulic pipe 43 enters the hydraulic cylinder 39. The lifting rod 40 drives the lower detection plate 41 upward under the action of the hydraulic oil. Then, the lower detection plate 41 and the upper detection plate 38 approach each other. When the lower detection plate 41 pushes the PCB board 12 off the rubber transmission belt 53, the probes 42 on the upper detection plate 38 and the lower detection plate 41 are released from the PCB board 12. At this time, the PCB board 12 can be tested through the probes 42. After the test, the upper detection plate 38 and the lower detection plate 41 are reset, and the PCB board 12 falls back onto the rubber transmission belt 53.

[0061] S5. When the rubber conveyor belt 53 transports the tested PCB board 12 between the two L-shaped limit plates 47, the PCB board 12 is blocked by the baffle 51. Then, the output shaft of the third cylinder 45 pushes the second support plate 46 to move upward. The second support plate 46 lifts the PCB board 12. When the PCB board 12 moves above the trapezoidal plate 50, the trapezoidal plate 50 lifts the PCB board 12 with the cooperation of the second spring 49. Then, the second support plate 46 moves downward to reset until the next PCB board 12 arrives. Then, the second support plate 46 can lift the PCB board 12 again, thus automatically stacking multiple PCB boards 12 vertically without manual stacking.

[0062] S6. When the PCB boards 12 are stacked to a certain height, the L-shaped right-angle plate 55 is moved at this time. The L-shaped right-angle plate 55 is disengaged from the sliding engagement with the baffle 51, releasing the brake on the baffle 51. Then, the baffle 51 is rotated clockwise, releasing the baffle 51 from blocking the multiple PCB boards 12. Then, the staff can move the stacked multiple PCB boards 12 at one time.

[0063] However, as is well known to those skilled in the art, the working principles and wiring methods of the first cylinder 13, the annular electromagnet 34, the second cylinder 37, and the third cylinder 45 are commonplace and belong to conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0064] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A router PCB board testing machine, comprising a workbench (1), characterized in that, The top of the workbench (1) is slidably connected to two horizontal plates (5). The top of the workbench (1) is provided with a feeding groove (10) for placing PCB boards (12), and the two horizontal plates (5) are located on both sides of the feeding groove (10). The top of the workbench (1) is fixedly connected to a first U-shaped frame (2). The top inner wall of the first U-shaped frame (2) is fixedly connected to a first cylinder (13). The top of the workbench (1) is fixedly connected to two machine frames (52), and a rubber conveyor belt (53) is provided between the two machine frames (52). The material handling structure is set inside the first U-shaped frame (2) and is used to automatically take out multiple PCB boards (12) from the material feeding slot (10); The detection structure is set on the top of the workbench (1) for automatically detecting the PCB board (12); A collection structure (4) is set between two racks (52) for automatically stacking PCB boards (12) after testing; The two frames (52) pass through the detection structure and the collection structure (4) respectively.

2. The router PCB board testing machine according to claim 1, characterized in that, The material handling structure includes sliding plates (16) slidably connected to the inner walls of the first U-shaped frame (2) on opposite sides. Limiting rods (18) slide through both sliding plates (16). The bottom ends of the two limiting rods (18) are fixedly connected to the same lifting plate (14). The output shaft of the first cylinder (13) is fixedly connected to the top of the lifting plate (14). Multiple first tension springs (17) are fixedly connected to both sides of the top of the lifting plate (14), and the tops of the multiple first tension springs (17) are fixedly connected to the bottoms of the corresponding sliding plates (16). Next, the bottom of the lifting plate (14) is provided with a plurality of vacuum suction cups (15) for adsorbing PCB board (12), the bottom of the two sliding plates (16) are rotatably connected with connecting rods (19), and the bottom end of the connecting rods (19) is rotatably connected to the top of the corresponding horizontal plate (5). The bottom of one of the sliding plates (16) is fixedly connected with a push rod (20). The material discharge trough (10) is provided with a conveying structure for automatically conveying PCB board (12) upward, and the conveying structure can convey the uppermost PCB board (12) to the same height.

3. A router PCB board testing machine according to claim 2, characterized in that, The detection structure includes a second U-shaped frame (3) fixedly connected to the top of the workbench (1), and the second U-shaped frame (3) is located on one side of the first U-shaped frame (2). A second cylinder (37) is fixedly connected to the inner top wall of the second U-shaped frame (3). The output shaft of the second cylinder (37) is fixedly connected to an upper detection plate (38). A hydraulic cylinder (39) located between two rubber conveyor belts (53) is fixedly connected to the top of the workbench (1). A lifting mechanism is slidably connected inside the hydraulic cylinder (39). The lifting rod (40) has a lower detection plate (41) fixedly connected to its top end. The lower detection plate (41) and the upper detection plate (38) are provided with multiple probes (42) for testing the PCB board (12) on their respective sides. Both of the frames (52) have hydraulic pipes (43) that are connected to the hydraulic cylinder (39) fixedly passing through them. The top end of the hydraulic pipe (43) is sealed and slidably connected to a sliding rod (44), and the sliding rod (44) cooperates with the upper detection plate (38).

4. A router PCB board testing machine according to claim 3, characterized in that, The collecting structure (4) includes two L-shaped limiting plates (47) fixedly connected to the two frames (52) on the side close to each other. A baffle (51) for limiting the PCB board (12) is provided between the two frames (52). A third cylinder (45) located between the two L-shaped limiting plates (47) is fixedly connected to the top of the workbench (1). A second support plate (46) for lifting the PCB board (12) is fixedly connected to the output shaft of the third cylinder (45). Multiple rectangular grooves (48) are provided on the side close to each other of the two L-shaped limiting plates (47). A trapezoidal plate (50) for lifting the PCB board (12) is slidably connected in the rectangular groove (48). A second spring (49) is fixedly connected to one side of the trapezoidal plate (50). The other end of the second spring (49) is fixedly connected to the inner wall of one side of the rectangular groove (48).

5. A router PCB board testing machine according to claim 1, characterized in that, The two horizontal plates (5) are rotatably connected to a first conveyor roller (6) and a second conveyor roller (7) on their adjacent sides. The first conveyor roller (6) and the second conveyor roller (7) on the same side are connected by a rubber conveyor belt (8). The top of the workbench (1) is rotatably connected to a slide rod (9) through a base. One end of the slide rod (9) slides through the two horizontal plates (5) and the second conveyor roller (7). The top of the workbench (1) is equipped with a motor, and the output shaft of the motor is fixedly connected to one end of the slide rod (9) through a coupling.

6. A router PCB board testing machine according to claim 2, characterized in that, The conveying structure includes a first pallet (11) slidably disposed in the discharge trough (10), and the first pallet (11) is used to support multiple stacked PCB boards (12). The workbench (1) is provided with an L-shaped hydraulic channel (21), and the L-shaped hydraulic channel (21) is connected to the discharge trough (10). The top end of the L-shaped hydraulic channel (21) is sealed and slidably connected to a piston plate (22) that cooperates with a push rod (20). The other end of the L-shaped hydraulic channel (21) is sealed and slidably connected to a piston rod (23) extending into the discharge trough (10). A second tension spring (59) is fixedly connected to one side of the inner wall of the L-shaped hydraulic channel (21), and the other end of the second tension spring (59) is fixedly connected to the piston rod (23). The bottom inner wall of the discharge trough (10) is slidably connected to multiple sliding seats (25), and a rotating rod (25) is rotatably connected to the sliding seat (25). 4), and the top of the rotating rod (24) is rotatably connected to the bottom of the first support plate (11). The sliding seat (25) is fixedly connected to the side of the L-shaped hydraulic channel (21) with a second rack (31), and the second rack (31) is slidably connected to the bottom inner wall of the discharge trough (10). The discharge trough (10) is rotatably connected to a rotating shaft (26) through a base. The outer wall of the rotating shaft (26) is fixed with a one-way bearing (27). The outer wall of the one-way bearing (27) is fixed with a first gear (28). One end of the piston rod (23) is fixedly connected with a first rack (29) that meshes with the first gear (28). The outer wall of the rotating shaft (26) is fixedly fitted with multiple second gears (30), and the second gears (30) mesh with the second rack (31). The bottom inner wall of the discharge trough (10) is provided with multiple sets of limiting structures for limiting the sliding seat (25).

7. A router PCB board testing machine according to claim 6, characterized in that, The limiting structure includes multiple slots (36) set on the inner wall of the bottom of the feeding trough (10). The bottom of the sliding seat (25) is provided with a sliding groove (32). An iron trapezoidal pin (35) that engages with the slot (36) is slidably connected in the sliding groove (32). A first spring (33) is fixedly connected to the top of the iron trapezoidal pin (35), and the top of the first spring (33) is fixedly connected to the inner wall of the top of the sliding groove (32). A ring electromagnet (34) that magnetically attracts the iron trapezoidal pin (35) is fixedly connected to the inner wall of the top of the sliding groove (32).

8. A router PCB board testing machine according to claim 1, characterized in that, The bottom inner wall of the feeding trough (10) is fixedly connected with a plurality of fixed columns (54), and the top of the fixed columns (54) is fixedly connected with a rubber pad.

9. A router PCB board testing machine according to claim 3, characterized in that, The bottom of the lower detection plate (41) is fixedly connected with multiple pins (58), and the top of the workbench (1) is fixedly connected with multiple fixing sleeves (57), and the pins (58) and the fixing sleeves (57) slide together.

10. A router PCB board testing machine according to claim 4, characterized in that, The baffle (51) is rotatably connected between two frames (52) via a round shaft, and the baffle (51) is located above the rubber conveyor belt (53). One side of the baffle (51) is slidably fitted with an L-shaped right-angle plate (55) through a slide rail. The top of the frame (52) is provided with a limiting groove (56) that engages with the L-shaped right-angle plate (55).

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