Multi-station self-adaptive feeding device for PCBs (printed circuit boards)

Abstract

The invention discloses a multi-station self-adaptive feeding device for PCBs, and the device comprises a feeding table which is provided with conveying belts at the two sides of the upper end; the multiple scanning mechanisms are arranged in the conveying direction of the conveying belt and used for scanning the concave state of the PCBs conveyed on the conveying belt; the leveling mechanism is arranged between the two conveying belts and used for leveling the PCB in the downward concave state; the correction mechanism is arranged corresponding to the scanning mechanism and is used for correcting the PCBs on the conveying belt; and the turnover mechanisms are arranged between the adjacent correction mechanisms and used for being matched with multi-station processing of the PCBs.

Description

Technical Field

[0001] This invention relates to the field of PCB board delivery technology, specifically to a multi-station adaptive PCB board delivery device. Background Technology

[0002] As the core carrier of electronic components, PCBs (Printed Circuit Boards) require multiple processes such as soldering, testing, and assembly during their manufacturing. On modern automated production lines, PCBs typically move between different workstations via conveyor belt systems. However, the conveying and delivery methods present the following problems:

[0003] (1) In order to ensure that the PCB board is transported smoothly on the conveyor belt without getting stuck, there is usually a certain gap between the conveyor belt and the edge of the PCB board. This causes the PCB board to easily generate a small amount of lateral displacement and angular deflection during the transport process. When the PCB board arrives at the processing station, its actual position deviates from its theoretical position, which directly affects the positioning accuracy of subsequent processes such as precision welding, component installation, and flying probe testing, ultimately leading to a decrease in the product qualification rate.

[0004] (2) For PCBs that are large in size or thin in thickness, when supported only by conveyor belts on both sides, they will deform due to their own weight and the uneven weight distribution of components on the board, resulting in a concave middle section. The concave deformation will not only cause local areas on the board to deviate from the ideal plane, affecting the processing accuracy (such as uneven solder paste printing thickness and offset of the placement position), but the problem will also be more prominent when performing double-sided processing.

[0005] (3) When the existing production line flips the PCB board to process the other side, it often uses an independent flipping mechanism or moves the board off the line for manual flipping. This is not only inefficient, but also easy to introduce new errors during secondary positioning, making it difficult to ensure the uniformity of the processing accuracy of the two sides.

[0006] Therefore, it is necessary to provide a multi-station adaptive delivery device for PCB boards to solve the problems mentioned in the background art. Summary of the Invention

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-station adaptive delivery device for PCB boards, comprising:

[0008] The delivery platform has conveyor belts on both sides of its upper end;

[0009] Multiple scanning mechanisms are set along the conveyor belt conveying direction to scan the concave state of the PCB board as it is conveyed on the conveyor belt;

[0010] A leveling mechanism, located between two conveyor belts, is used to flatten or retract PCB boards.

[0011] The calibration mechanism, which is set up in correspondence with the scanning mechanism, calibrates the PCB board on the conveyor belt;

[0012] The flipping mechanism is located between adjacent correction mechanisms and is used to assist in multi-station processing of PCB boards.

[0013] As a preferred embodiment of the present invention, the correction mechanism includes mounting plates disposed on the outer sides of the two conveyor belts, with a push clamping device and a filling plate respectively provided on the upper end of the mounting plates, and a delivery track is formed between the filling plate and the conveyor belt.

[0014] As a preferred embodiment of the present invention, the push-clamp device includes:

[0015] Telescopic rod two is fixed to the mounting plate and points perpendicularly to the conveyor belt;

[0016] Push plate 2 is fixed to the output end of telescopic rod 2. Multiple lifting rods 2 are arranged along its upper plate surface. Spring 2 is connected to the lower output end of lifting rod 2. U-shaped seat is connected to the lower end of spring 2. Pressure roller is installed on U-shaped seat.

[0017] As a preferred embodiment of the present invention, the pusher plate 2 is provided with a contact sensor strip on the side facing the PCB board.

[0018] As a preferred embodiment of the present invention, the scanning mechanism includes a movable guide rail arranged along the conveyor belt conveying direction, on which a movable seat is mounted, a lifting rod is provided on the movable seat, and a scanning bar spanning two conveyor belts is provided at the upper end of the lifting rod.

[0019] As a preferred technical solution of the present invention, the scanning bar scans the two edges of the PCB board along the conveyor belt direction to obtain the PCB concave edge shape and the edge position corresponding to the maximum concave point.

[0020] As a preferred embodiment of the present invention, the leveling mechanism includes:

[0021] The drive belt is installed on both sides of the delivery platform;

[0022] A horizontal frame spans across two transmission belts and is evenly spaced on the transmission belts, with elastic tops sliding on it;

[0023] Telescopic rod 1 is installed on both sides of the delivery platform, and its output end is equipped with a push plate 1 for pushing the elastic top.

[0024] As a preferred embodiment of the present invention, the elastic mandrel includes:

[0025] A vertical cylinder with a hanging lug that slides through a horizontal frame on its outer wall and an electromagnet at its bottom;

[0026] The slider slides in the vertical cylinder cavity and is connected to the opening of the vertical cylinder by a spring. It has a magnetic block at its lower end and a top rod that penetrates the vertical cylinder at its upper end.

[0027] As a preferred embodiment of the present invention, the flipping mechanism includes:

[0028] The third lifting rod is located on both sides of the delivery platform, and its output end is equipped with a lifting seat.

[0029] The motor is mounted on the lifting platform, and a rotating frame is installed at its output end. Telescopic rods three are symmetrically arranged at both ends of the rotating frame. A lifting guide rail is provided at the output end of the telescopic rods three. A movable seat two is provided on the lifting guide rail, and a U-shaped clamp is provided on the movable seat two.

[0030] Compared with the prior art, the present invention provides a multi-station adaptive delivery device for PCB boards, which has the following beneficial effects:

[0031] The present invention utilizes a correction mechanism to actively correct the position of the PCB board during transport or upon arrival at the workstation, effectively eliminating displacement and angular deviations caused by transport gaps. The use of contact sensor strips ensures that the PCB board enters the processing station in a precise posture parallel to the conveyor belt each time during the correction process, laying a solid foundation for subsequent high-precision processing. This achieves high-precision dynamic positioning and posture correction. Through intelligent closed-loop control of "scan first, then level," the invention can actively sense the concave shape of the PCB board caused by gravity and perform precise lifting compensation through the leveling mechanism. The electromagnetic drive and flexible contact design of the elastic top head can adapt to different heights of components at the bottom of the PCB board, achieving "zero-damage" lifting and ultimately restoring the PCB board to an ideal horizontal state, thus improving the flatness accuracy of component installation, soldering, and inspection processes.

[0032] This invention modularly integrates scanning, correction, leveling, and flipping functions, and flexibly configures them according to the number of workstations. It can automatically sense the status (position, flatness) of the PCB board and make corresponding adjustments without manual intervention or fixture replacement. This greatly enhances the adaptability to PCB boards of different specifications and weight distributions, meets the needs of flexible production, and improves the intelligence and adaptability of the production line. Through the flipping mechanism integrated into the production line, seamless and automatic flipping of PCB boards during the transfer process is achieved, avoiding the cumbersome offline flipping steps required in traditional methods. This ensures the continuity of the production process, significantly shortens the production cycle, and is especially suitable for production scenarios requiring double-sided processing, significantly improving the overall efficiency of multi-workstation production. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of the present invention;

[0034] Figure 2 This is a schematic diagram of the leveling mechanism structure of the present invention;

[0035] Figure 3 This is a partial structural diagram of the flipping mechanism of the present invention;

[0036] Figure 4 This is a partial structural diagram of the correction mechanism of the present invention;

[0037] Figure 5 This is a schematic diagram of the push-clamp device structure of the present invention;

[0038] In the diagram: 1. Feeding platform; 2. Conveyor belt; 3. Leveling mechanism; 31. Transmission belt; 32. Crossbar frame; 33. Elastic top head; 34. Telescopic rod one; 35. Push plate one; 331. Vertical cylinder; 332. Electromagnet; 333. Hanging lug; 334. Slider; 335. Spring one; 336. Top rod; 337. Magnetic block; 4. Scanning mechanism; 41. Moving guide rail; 42. Moving seat one; 43. Lifting rod one; 44. Scanning bar; 5. Calibration mechanism; 51. Mounting plate; 52. Filling plate; 53. Push clamp device; 54. Delivery track; 531. Telescopic rod II; 532. Push plate II; 533. Lifting rod II; 534. Spring II; 535. U-shaped seat; 536. Pressure roller; 537. Contact sensor strip; 6. Tilting mechanism; 61. Lifting rod III; 62. Lifting seat; 63. Motor; 64. Turning frame; 65. Telescopic rod III; 66. Lifting guide rail; 67. Moving seat II; 68. U-shaped clamp. Detailed Implementation

[0039] Reference Figures 1-5 This invention provides a technical solution: a multi-station adaptive delivery device for PCB boards, comprising:

[0040] The delivery platform 1 has conveyor belts 2 on both sides of its upper end;

[0041] Multiple scanning mechanisms 4 are arranged along the conveying direction of the conveyor belt 2 to scan the concave state of the PCB board as it is conveyed on the conveyor belt 2.

[0042] The leveling mechanism 3 is located between the two conveyor belts 2 and is used to level the PCB board in a concave state.

[0043] The calibration mechanism 5 is set in correspondence with the scanning mechanism 4 to calibrate the PCB board on the conveyor belt 2;

[0044] The flipping mechanism 6 is located between the adjacent correction mechanism 5 and is used to cooperate with the multi-station processing of PCB boards.

[0045] In this embodiment, based on the number of workstations in the multi-station system, corresponding scanning mechanism 4, correction mechanism 5, flipping mechanism 6, and leveling mechanism 3 are set up. Specifically, during the adaptive placement process of the PCB board at multiple workstations, the PCB board is placed on two conveyor belts 2, which then transport and place the PCB board. It should be noted that there is often a certain gap between the edges of the PCB board resting on the conveyor belts 2 to ensure smooth placement and transport of the PCB board. However, slight displacement deviations can easily occur during the PCB board transport and placement process, affecting the accuracy of processes such as component soldering, connection, clamping, and flipping. Therefore, before proceeding to the next processing step, the PCB board is moved to the correction mechanism 5, which corrects the gaps on the conveyor belts 2, ensuring smooth placement of the PCB board on the conveyor belts 2. The PCB board can be aligned with the conveyor belt 2 by having its edge parallel to the conveyor belt 2. The area of ​​the placement table 1 where the alignment mechanism 5 is located is set as a processing station for PCB board processing. After the PCB board is aligned, due to the non-uniform distribution of the number and weight of components on the PCB board during processing, and the fact that the PCB board itself is affected by gravity during the placement and transportation process on the conveyor belt 2, the PCB board may become concave. This often leads to deviations in the installation accuracy of the components on the PCB board, thus affecting the PCB board production and processing. Therefore, the leveling mechanism 3 is used to level the PCB board after it has been aligned by the alignment mechanism 5, thereby eliminating the problem of gravity affecting the state of the PCB board during processing or transportation, and thus improving the PCB board processing accuracy. The flipping mechanism 6 can flip the PCB board 180°, thereby improving the efficiency of multi-station PCB board processing.

[0046] In this embodiment, the correction mechanism 5 includes an installation plate 51 disposed on the outside of the two conveyor belts 2, with a push clamping device 53 and a filling plate 52 respectively disposed on its upper end, and a delivery track 54 is formed between the filling plate 52 and the conveyor belt 2.

[0047] In other words, the gap-filling plate 52 fills the gap on the conveyor belt 2 outside the position of the push-clamping device 53, forming a placement track 54 for placing and transporting PCB boards. The maximum space distance between the two placement tracks 54 is slightly greater than the distance between the edges of the PCB boards. That is, as described above, a certain gap is reserved on the edges of the PCB boards placed on the conveyor belt 2 so that the PCB boards can be efficiently placed on the conveyor belt 2 and transported smoothly on the conveyor belt 2. The push-clamping device 53 is used to push and clamp the two edges of the PCB boards to each other, so that the two edges of the PCB boards are parallel to the conveyor belt 2.

[0048] In this embodiment, the push clamp device 53 includes:

[0049] Telescopic rod 2 531 is fixed on mounting plate 51 and points vertically toward conveyor belt 2;

[0050] Push plate 2 532 is fixed to the output end of telescopic rod 2 531. Multiple lifting rods 2 533 are arranged along its upper plate surface. Spring 2 534 is connected to the lower output end of lifting rod 2 533. U-shaped seat 535 is connected to the lower end of spring 2 534. Pressure roller 536 is installed on U-shaped seat 535.

[0051] Specifically, before the PCB board enters the area where the pusher plate 2 532 is located, the pusher plate 2 532 and the filler plate 52 are flush to form a smooth delivery track 54 for the PCB board to move. When the PCB board enters the area where the pusher plate 2 532 is located, the telescopic rod 2 531 can slowly adjust the pusher plate 2 532 to move towards the PCB board, thereby correcting the PCB board during the movement of the PCB board until the PCB board is completely in the area where the pusher plate 2 532 is located. Then the pusher plate 2 532 contacts the PCB board and can selectively apply pressure to stabilize the position of the PCB board.

[0052] The spring 534 and the pressure roller 536 are designed to help monitor the edge warping of the PCB board and apply pressure to flatten the PCB board, thus helping to fix the PCB board in place.

[0053] In this embodiment, the push plate 2 532 is provided with a contact sensor strip 537 on the side facing the PCB board. That is, multiple touch sensors are distributed on the contact sensor strip 537. When multiple touch sensors are found to be in uniform contact with the edge of the PCB board, it can be determined that the edge of the PCB board at this point is parallel to the conveyor belt 2, and the correction is completed.

[0054] In this embodiment, the scanning mechanism 4 includes a movable guide rail 41 arranged along the conveying direction of the conveyor belt 2, on which a movable seat 42 is mounted, a lifting rod 43 is provided on the movable seat 42, and a scanning bar 42 spanning two conveyor belts 2 is provided at the upper end of the lifting rod 43.

[0055] In this embodiment, the scanning bar 42 scans the two edges of the PCB board along the direction of the conveyor belt 2 to obtain the shape of the PCB concave edge and the edge position corresponding to the maximum concave point.

[0056] It should be noted that after the calibration mechanism 5 completes the calibration, the PCB board is then scanned by the scanning mechanism 4 to improve the accuracy of the obtained PCB board concave state. Specifically, the moving seat 42 moves on the moving guide rail 41, and the scanning bar 42 is adjusted to scan the top of the PCB board in sequence, scanning and reading the edge shape of the two PCB boards in the concave state respectively. Because there may be uneven weight distribution on the PCB board, the edge shapes of the two concave states may be inconsistent. Therefore, as a preferred embodiment, the two board edges are recorded. The position of the board edge corresponding to the maximum concave point is determined. If the two concave points are not on the same straight line parallel to the conveyor belt 2, a straight line parallel to the conveyor belt 2 is selected where the two concave points are located. The center line between them is then calculated, and the corresponding PCB board position is calculated as the support line position of the leveling mechanism 3. The distance of the concave point protruding from the horizontal plane of the PCB board is also obtained to assist the leveling mechanism 3 in leveling the PCB board. The leveling mechanism 3 supports the PCB board at this position, making the PCB board horizontal, thereby improving the multi-station processing accuracy.

[0057] In this embodiment, the leveling mechanism 3 includes:

[0058] The transmission belt 31 is installed on both sides of the delivery platform 1;

[0059] A horizontal frame 32 spans across two transmission belts 31 and is evenly spaced on the transmission belts 31, and an elastic top 33 slides on it.

[0060] Telescopic rod 34 is installed on both sides of the delivery platform 1, and its output end is provided with push plate 35 for pushing elastic head 33;

[0061] The resilient head 33 includes:

[0062] The vertical cylinder 331 has a hanging lug 333 on its outer wall that is slidably connected to the horizontal frame 32, and an electromagnet 332 is provided at the bottom of the cylinder.

[0063] The slider 334 slides in the cavity of the vertical cylinder 331. It is connected to the opening of the vertical cylinder 331 by a spring 335. A magnetic block 337 is provided at its lower end, and a push rod 336 that penetrates the vertical cylinder 331 is provided at its upper end.

[0064] Among them, the lug 333 and the horizontal frame 32 have a slight friction effect so that the elastic top 33 is stably fixed on the horizontal frame 32;

[0065] Specifically, after the scanning mechanism 4 completes the scanning, the leveling mechanism 3 is activated to adjust the elastic tops 33 within the coverage area below the PCB board. First, the push plate 35 is adjusted by the telescopic rod 34 to position the elastic tops 33 at the obtained support line position. Then, the electromagnets 332 in each elastic top 33 are activated. The magnetic force of each electromagnet 332 gradually increases from small to large, and a repulsive force is generated with the magnetic block 337, pushing the magnetic block 337 upward. When the top rod 336 first contacts the lower end surface of the PCB board or the components on the lower end surface of the PCB board, the electromagnets 332 corresponding to the contacted top rod 336 temporarily... The magnetic force generated by locking is reached until each push rod 336 is in contact, in order to deal with the non-flat situation of the lower end face of the PCB board caused by the shape of the components. Then, according to the distance of the concave point protruding from the horizontal plane of the PCB board, the electromagnet 332 is activated again to increase the magnetic force, so that the push rod 336 moves synchronously to support the concave PCB board position to move upward until the PCB board is horizontal. Furthermore, the deformation of the second spring 534 in the correction mechanism 5 can be used to determine whether the PCB board is horizontal. That is to say, when the PCB board is in a concave state, the raised edge of the PCB board will cause the lifting roller 535 to compress the second spring 534.

[0066] In this embodiment, the flipping mechanism 6 includes:

[0067] The lifting rod 3 61 is distributed on both sides of the delivery platform 1, and the output end of the rod is provided with a lifting seat 62;

[0068] Motor 63 is mounted on lifting seat 62. A rotating frame 64 is mounted on its output end. Telescopic rods 65 are symmetrically arranged at both ends of the rotating frame 64. A lifting guide rail 66 is provided at the output end of the telescopic rods 65. A movable seat 67 is provided on the lifting guide rail 66. A U-shaped clamp 68 is provided on the movable seat 67.

[0069] Specifically, when the PCB board moves to the flipping mechanism 6 area and needs to be flipped, the lifting seat 62 is lowered by the lifting rod 3 61, and the lifting guide rail 66 is moved closer to the PCB board by the telescopic rod 3 65, so that the U-shaped clamp 68 clamps the PCB board. Then, the lifting seat 62 is raised by the lifting rod 3 61, and the rotating frame 64 is rotated 180° by the motor 63. Then, the lifting seat 62 is lowered by the lifting rod 3 61, and the moving seat 2 67 is moved on the lifting guide rail 66 so that the PCB board is placed back on the delivery table 1. Then, the lifting guide rail 66 is moved away from the PCB board by the telescopic rod 3 65, and the lifting seat 62 is raised by the lifting rod 3 61, so that the next PCB board to be flipped can be waited for.

[0070] In practical implementation, S1: First stage:

[0071] a1. Loading and conveying: The PCB board is placed on two parallel conveyor belts 2, which carry it and convey it in a preset direction. A necessary gap is reserved between the conveyor belts 2 and the edge of the PCB board to ensure smooth conveying.

[0072] a2. Initial calibration: When the PCB board is transported to the station where a calibration mechanism 5 is located, the push clamp device 53 located outside the conveyor belt 2 slowly moves towards the edge of the PCB board under the drive of the telescopic rod 531.

[0073] a3. Parallelism judgment: The contact sensor strip 537 on the side of the pusher plate 2 532 monitors the contact with the edge of the plate in real time. When the feedback is uniform contact, it indicates that the PCB board has been pushed upright and its edge is parallel to the conveyor belt 2, eliminating lateral displacement and angular deflection.

[0074] a4. Assisted flattening: At the same time, the pressure roller 536, under the action of the second spring 534, is close to the edge of the board to press down any slight warping that may exist, and assist in fixing the position of the PCB board.

[0075] S2: Second Stage

[0076] b1. Recessed scanning: After calibration, the scanning mechanism 4 is started. The scanning bar 42 moves along the moving guide rail 41 under the drive of the moving seat 42 to scan the entire upper surface of the PCB board.

[0077] b2. Data Acquisition: Scan and acquire the concave shape of the two long sides of the PCB board caused by gravity, and record the position of the maximum concave point of the two board sides and the concave distance relative to the horizontal plane.

[0078] b3. Calculate the support line: Due to the uneven distribution of components on the PCB board, the concave shape on both sides may be asymmetrical. Analyze the position of the two largest concave points, calculate and determine the best support line between the two largest concave points as the benchmark for subsequent leveling operations.

[0079] S3: Third Stage

[0080] c1. Adaptive lifting and leveling: The leveling mechanism 3 performs the leveling operation based on the optimal support line data provided by the scanning mechanism 4;

[0081] c2. Positioning rod: Telescopic rod 34 pushes push plate 35 to move, thereby precisely adjusting the corresponding elastic head 33 on the crossbar frame 32 to the calculated optimal support straight line position;

[0082] c3. Flexible contact: When the electromagnet 332 of each elastic top 33 is energized, it generates a magnetic force that gradually increases, repelling the magnetic block 337. This causes the block to be pushed upwards via the slider 334 and the push rod 336. A pressure sensor (not shown in the figure) is installed at the top of the push rod. When the push rod 336 contacts the bottom surface of the PCB board, the electromagnetic force of the push rod stops increasing. This design can adapt to the different heights of the components at the bottom of the PCB board, avoiding damage.

[0083] c4. Synchronous lifting to horizontal: After all the push rods have completed the initial contact, based on the previously obtained concave distance, all electromagnets are controlled to increase the magnetic force synchronously, and all push rods are lifted upward by the same distance, thereby accurately lifting the concave PCB board and restoring it to a horizontal state. The leveling effect can be verified and adjusted through the deformation feedback of spring 534 in the correction mechanism 5.

[0084] S4: Fourth Stage

[0085] d1. Transfer processing: After leveling, the PCB board is conveyed by a conveyor belt to the next station, such as the next calibration and scanning station, for processing procedures such as welding and inspection.

[0086] d2. On-demand flipping: When the process requires the PCB board to be flipped, the flipping mechanism 6 is activated;

[0087] d3. Grabbing: The lifting rod 3 61 descends, bringing the U-shaped clamp 68 closer to the PCB board. The telescopic rod 3 65 drives the lifting guide rail 66 to move inward, so that the U-shaped clamp holds the PCB board from both sides.

[0088] d4. Flipping and Placement: After clamping, lifting rod three raises the PCB board to a safe height. Then, motor 63 drives the rotating frame 64 to rotate 180 degrees. Finally, lifting rod three descends again to accurately place the flipped PCB board back onto the conveyor belt to continue the subsequent process.

[0089] The above description is merely a preferred embodiment of the 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 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 multi-station adaptive delivery device for PCB boards, characterized in that, include: The delivery platform (1) has conveyor belts (2) on both sides of its upper end. Multiple scanning mechanisms (4) are set along the conveying direction of the conveyor belt (2) to scan the concave state of the PCB board as it is conveyed on the conveyor belt (2); A leveling mechanism (3) is located between two conveyor belts (2) and is used to level PCB boards in a concave state. The calibration mechanism (5) is set in correspondence with the scanning mechanism (4) to calibrate the PCB board on the conveyor belt (2); The flipping mechanism (6) is located between the adjacent correction mechanism (5) and is used to cooperate with the multi-station processing of the PCB board.

2. The PCB board multi-station adaptive delivery device according to claim 1, characterized in that, The correction mechanism (5) includes a mounting plate (51) set on the outside of the two conveyor belts (2), with a push clamping device (53) and a filling plate (52) respectively at the upper end, and a delivery track (54) is formed between the filling plate (52) and the conveyor belt (2).

3. The PCB board multi-station adaptive delivery device according to claim 1, characterized in that, The push clamp device (53) includes: Telescopic rod 2 (531) is fixed on mounting plate (51) and points vertically toward conveyor belt (2); Push plate 2 (532) is fixed to the output end of telescopic rod 2 (531). Multiple lifting rods 2 (533) are arranged along its upper plate surface. Spring 2 (534) is connected to the lower output end of lifting rod 2 (533). U-shaped seat (535) is connected to the lower end of spring 2 (534). Pressure roller (536) is installed on U-shaped seat (535).

4. The PCB board multi-station adaptive delivery device according to claim 1, characterized in that, The push plate 2 (532) has a contact sensor strip (537) on the side facing the PCB board.

5. The PCB board multi-station adaptive delivery device according to claim 1, characterized in that, The scanning mechanism (4) includes a movable guide rail (41) arranged along the conveying direction of the conveyor belt (2), on which a movable seat (42) is mounted, and a lifting rod (43) is provided on the movable seat (42), and a scanning bar (42) spanning the two conveyor belts (2) is provided at the upper end of the lifting rod (43).

6. The PCB board multi-station adaptive delivery device according to claim 5, characterized in that, The scanning bar (42) scans the two edges of the PCB board along the direction of the conveyor belt (2) to obtain the shape of the PCB concave edge and the edge position corresponding to the maximum concave point.

7. The PCB board multi-station adaptive delivery device according to claim 1, characterized in that, The leveling mechanism (3) includes: A transmission belt (31) is installed on both sides of the delivery platform (1); A horizontal frame (32) spans across two transmission belts (31) and is evenly spaced on the transmission belts (31), and has an elastic top (33) sliding on it. Telescopic rod 1 (34) is installed on both sides of the delivery platform (1), and its output end is provided with push plate 1 (35) for pushing the elastic head (33).

8. The PCB board multi-station adaptive delivery device according to claim 7, characterized in that, The resilient head (33) includes: The vertical tube (331) has a hanging lug (333) on its outer wall that is slidably connected to the horizontal frame (32), and an electromagnet (332) is provided at the bottom of the tube. The slider (334) slides in the cavity of the vertical cylinder (331), and is connected to the opening of the vertical cylinder (331) by a spring (335). A magnetic block (337) is provided at its lower end, and a top rod (336) that penetrates the vertical cylinder (331) is provided at its upper end.

9. The PCB board multi-station adaptive delivery device according to claim 1, characterized in that, The flipping mechanism (6) includes: The lifting rod three (61) is distributed on both sides of the delivery platform (1), and the output end of the rod is provided with a lifting seat (62). The motor (63) is installed on the lifting seat (62), and a rotating frame (64) is installed at its output end. The rotating frame (64) has telescopic rods (65) symmetrically arranged at both ends. The output end of the telescopic rods (65) is provided with a lifting guide rail (66). The lifting guide rail (66) is provided with a movable seat (67), and the movable seat (67) is provided with a U-shaped clamp (68).

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