A plate turning mechanism for PCB processing

Abstract

This utility model discloses a flipping mechanism for PCB board processing, including a flipping table, a first conveyor, and a second conveyor. The flipping table has a "U"-shaped structure. This flipping mechanism for PCB board processing achieves rapid transfer of PCB boards between double-sided processing steps through a 180° precise flipping driven by a motor and an automatic release mechanism of the pressing unit. By adjusting the threaded engagement of the adjusting nut and the screw, the distance between the pressing roller and the receiving groove can be adjusted to accommodate PCB boards of different thicknesses. The counterweight provides adjustable preload to ensure that different batches of products can be stably fixed, reducing contact friction of the PCB board during the flipping process. After flipping to the correct position, the counterweight drives the screw to automatically adjust the position of the pressing roller through gravity, allowing the PCB board to slide smoothly out along the pressing roller under the action of gravity and the traction force of the second conveyor, and finally be completely transferred to the second conveyor, completing the flipping process.

Description

Technical Field

[0001] This utility model relates to the field of PCB board processing technology, specifically a flipping mechanism for PCB board processing. Background Technology

[0002] In the field of PCB manufacturing technology, as electronic devices develop towards miniaturization and high performance, the application ratio of double-sided and multi-layer PCBs continues to rise. Double-sided PCBs require multiple precision processes such as component mounting, insertion, and soldering on both sides. Among these, the flipping process is a key step connecting the two sides, and its efficiency and quality directly affect the overall production line efficiency.

[0003] Traditional flip-board methods suffer from the following technical bottlenecks:

[0004] Limitations of manual board flipping: Relying on operators to manually pick up and place boards is not only labor-intensive but also time-consuming for flipping a single board, making it difficult to meet the minute-level cycle time requirements of modern production lines. Insufficient adaptability of mechanical board flipping: Early mechanical board flipping devices mostly used fixed clamps or rigid pressing mechanisms, which were only compatible with specific board sizes. Switching between sizes required machine stoppages for adjustments, leading to production interruptions. Surface quality risks: Rigid contact pressing or direct gripping of board edges can easily cause mechanical stress damage to the PCB board surface during the flipping process. Therefore, we propose a board flipping mechanism for PCB board processing. Utility Model Content

[0005] In view of the problems existing in the prior art, this utility model discloses a flipping mechanism for PCB board processing. The technical solution adopted includes a flipping table, a first conveyor and a second conveyor. The flipping table has a "U" shaped structure. A flipping plate is provided on the top inner side of the flipping table. The first conveyor is provided above the right end of the flipping plate, and the second conveyor is provided below the left end of the flipping plate. Material receiving grooves are respectively provided on the top right end and the bottom left end of the flipping plate. A pressing unit is provided in the middle of the material receiving groove. The front and rear ends of the pressing unit are respectively slidably installed in sliding holes provided on the flipping plate. A connecting shaft is fixedly installed in the middle of the flipping plate, and the front and rear ends of the connecting shaft are respectively rotatably connected to the top of the flipping table. A support platform is provided at the rear end of the connecting shaft. A servo motor and a reducer are fixedly installed on the top of the support platform. The output shaft of the servo motor is fixedly connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the rear end of the connecting shaft.

[0006] As a preferred technical solution of this utility model, the receiving trough is provided with three second wheel grooves arranged in a horizontal array at equal distances at one end near the first conveyor and the second conveyor, and the material passing rubber wheel is rotatably installed inside the second wheel groove.

[0007] As a preferred embodiment of this utility model, the pressing unit includes a connecting plate, a first wheel groove, a pressing rubber wheel, a screw, and a counterweight. Two sets of screws are provided, and the screws are slidably installed inside the sliding holes. One end of each screw is fixedly connected to a connecting plate provided on the opposite side of the receiving groove. The connecting plate has first wheel grooves symmetrically arranged in the middle. The pressing rubber wheels are rotatably installed inside the first wheel grooves. The other end of each screw is threaded through the sliding hole and a counterweight is installed thereon.

[0008] As a preferred embodiment of this utility model, the connecting plate is provided with adjusting nuts symmetrically arranged at one end of the receiving groove, and the adjusting nuts are threadedly connected to the screw.

[0009] As a preferred embodiment of this utility model, mounting holes are provided at the front and rear ends of the bottom of the tilting table.

[0010] As a preferred technical solution of this utility model, it also includes a controller, which is disposed in the middle of the front side of the tilting table. The output end of the controller is electrically connected to the input end of the servo motor, and the input end of the controller is electrically connected to the output end of an external power supply.

[0011] The beneficial effects of this utility model are as follows: This utility model achieves rapid transfer of PCB boards between double-sided processing steps through a 180° precise flip driven by a motor and an automatic release mechanism of the pressing unit; the pressing unit can be adjusted to adapt to PCB boards of different thicknesses to ensure that different batches of products can be stably fixed, reducing contact friction of the PCB boards during the flipping process; after flipping to the correct position, the pressing unit can automatically adjust so that the PCB board is finally completely transferred to the second conveyor under the action of gravity and the traction force of the second conveyor, completing the flipping process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the tilting table structure of this utility model;

[0014] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0015] Figure 4 This is a schematic diagram of the pressing unit structure of this utility model.

[0016] In the diagram: 1. Tilting table; 2. First conveyor; 3. Controller; 4. Second conveyor; 5. Pressing unit; 51. Connecting plate; 52. First wheel groove; 53. Pressing rubber wheel; 54. Screw; 55. Adjusting nut; 56. Counterweight; 6. Servo motor; 7. Connecting shaft; 8. Tilting plate; 9. Receiving trough; 10. Second wheel groove; 11. Feeding rubber wheel; 12. Support platform; 13. Reducer; 14. Mounting hole; 15. Sliding hole. Detailed Implementation

[0017] Example 1

[0018] like Figures 1 to 4As shown, this utility model discloses a flipping mechanism for PCB board processing. The technical solution includes a flipping table 1, a first conveyor 2, and a second conveyor 4. The flipping table 1 has a "U"-shaped structure. Mounting holes 14 are provided at both the front and rear ends of the bottom of the flipping table 1 for easy fixing. A flipping plate 8 is provided on the top inner side of the flipping table 1. The first conveyor 2 is located above the right end of the flipping plate 8, and the second conveyor 4 is located below the left end of the flipping plate 8. A receiving groove 9 is provided at the top right end and the bottom left end of the flipping plate 8. Three second wheel grooves 10 are arranged horizontally at equal intervals near the ends of the receiving grooves 9 closest to the first conveyor 2 and the second conveyor 4. Inside the second wheel groove 10, material passing rollers 11 are rotatably installed. The material passing rollers 11 in the second wheel groove 10 at the end of the receiving groove 9 assist the PCB board to slide smoothly in through rolling friction, reducing the risk of surface scratches. The middle part of the receiving groove 9 is provided with a pressing unit 5. The front and rear ends of the pressing unit 5 are respectively slidably installed in the sliding holes 15 provided on the flip plate 8. The pressing unit 5 includes a connecting plate 51, a first wheel groove 52, a pressing roller 53, a screw 54 and a counterweight 56. Two sets of screws 54 are provided, and the screws 54 are respectively slidably installed inside the sliding holes 15. One end of the screw 54 is fixedly connected to the connecting plate 51 provided on the opposite side of the receiving groove 9. The first wheel groove 52 is symmetrically arranged at the front and back of the first wheel groove 52. The pressure rollers 53 are rotatably installed on the inner side of the first wheel groove 52. The other end of the screw 54 passes through the sliding hole 15 and is threaded with a counterweight 56. The connecting plate 51 is symmetrically arranged at the front and back of the receiving groove 9. The adjusting nuts 55 are threaded to the screw 54. By rotating the adjusting nuts 55, the sliding position of the screw 54 along the sliding hole 15 is adjusted, thereby driving the connecting plate 51 to rise and fall, so that the distance between the pressure rollers 53 and the receiving groove 9 is adapted to the thickness of the PCB board, and the counterweight 56 ​​provides pre-tightening force. The connecting shaft 7 is fixedly installed in the middle of the flipping plate 8, and the front and rear ends of the connecting shaft 7 are respectively connected to the flipping table. The top of the rotating platform 1 is rotatably connected, and a support platform 12 is provided at the rear end of the connecting shaft 7. A servo motor 6 and a reducer 13 are fixedly installed on the top of the support platform 12. The output shaft of the servo motor 6 is fixedly connected to the input end of the reducer 13, and the output end of the reducer 13 is fixedly connected to the rear end of the connecting shaft 7. By starting the servo motor 6, the reducer 13 drives the connecting shaft 7 to rotate the flip plate 8 by 180°, so that the receiving trough 9 originally located above turns downward and the receiving trough 9 originally located below turns upward. The platform also includes a controller 3, which is located in the middle of the front side of the flip plate 1. The output end of the controller 3 is electrically connected to the input end of the servo motor 6, and the input end of the controller 3 is electrically connected to the output end of an external power supply.

[0019] The working principle of this utility model is as follows: First, according to the thickness of the PCB board to be processed, the operator adjusts the sliding position of the screw 54 along the sliding hole 15 by rotating the adjusting nut 55, thereby driving the connecting plate 51 to rise and fall, so that the distance between the pressure roller 53 and the receiving groove 9 matches the thickness of the PCB board, and the counterweight 56 ​​provides pre-tightening force; then, the PCB board is conveyed by the first conveyor 2 to the receiving groove 9 at the right end of the flipping plate 8, and the material passing roller 11 in the second wheel groove 10 at the end of the receiving groove 9 assists the PCB board to slide smoothly in through rolling friction, reducing the risk of surface scratches; secondly, the pressure roller 53 presses down under the gravity of the counterweight 56, fixing the PCB board in the receiving groove 9 and preventing displacement during the flipping process; then, by controlling The device 3 starts the servo motor 6, which drives the connecting shaft 7 via the reducer 13 to rotate the flip plate 8 180°, causing the receiving trough 9, which was originally located at the top, to turn downwards, and the receiving trough 9, which was originally located at the bottom, to turn upwards. Finally, after flipping into place, the counterweight 56, under the action of gravity, drives the screw 54 to slide along the sliding hole 15, so that the other side of the PCB board falls on the pressure roller 53 and slides towards the second conveyor 4. At this time, under the action of gravity and the traction force of the second conveyor 4, the PCB board slides smoothly out along the pressure roller 53 and is finally completely transferred to the second conveyor 4, completing the flipping process. Subsequently, the controller 3 controls the servo motor 6 to reverse, driving the flip plate 8 to reset to the initial position, waiting for the next PCB board to enter, forming a continuous automated operation cycle.

[0020] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0021] Components not described in detail in this article are existing technologies.

[0022] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A flipping mechanism for PCB board processing, comprising a flipping table (1), a first conveyor (2), and a second conveyor (4), characterized in that, The tilting table (1) has a "U" shaped structure. A tilting plate (8) is provided on the top inner side of the tilting table (1). A first conveyor (2) is provided above the right end of the tilting plate (8), and a second conveyor (4) is provided below the left end of the tilting plate (8). A receiving groove (9) is provided at the top right end and the bottom left end of the tilting plate (8). A pressing unit (5) is provided in the middle of the receiving groove (9). The front and rear ends of the pressing unit (5) are slidably mounted on the tilting plate (8). Inside the sliding hole (15), a connecting shaft (7) is fixedly installed in the middle of the flip plate (8), and the front and rear ends of the connecting shaft (7) are rotatably connected to the top of the flip table (1). A support platform (12) is provided at the rear end of the connecting shaft (7). A servo motor (6) and a reducer (13) are fixedly installed on the top of the support platform (12). The output shaft of the servo motor (6) is fixedly connected to the input end of the reducer (13), and the output end of the reducer (13) is fixedly connected to the rear end of the connecting shaft (7).

2. The flipping mechanism for PCB board processing according to claim 1, characterized in that: The receiving trough (9) has three second wheel troughs (10) arranged in a horizontal array at equal distances at one end near the first conveyor (2) and the second conveyor (4). The second wheel troughs (10) are respectively equipped with material passing rubber wheels (11) that rotate inside.

3. The flipping mechanism for PCB board processing according to claim 1, characterized in that: The pressing unit (5) includes a connecting plate (51), a first wheel groove (52), a pressing rubber wheel (53), a screw (54), and a counterweight (56). Two sets of screws (54) are provided, and the screws (54) are slidably installed on the inner side of the sliding hole (15). One end of the screw (54) is fixedly connected to the connecting plate (51) provided on the side opposite to the receiving groove (9). The first wheel groove (52) is symmetrically provided in the middle of the connecting plate (51). The pressing rubber wheel (53) is rotatably installed on the inner side of the first wheel groove (52). The other end of the screw (54) passes through the sliding hole (15).

4. The flipping mechanism for PCB board processing according to claim 3, characterized in that: A counterweight (56) is threaded onto the bottom of the screw (54).

5. A flipping mechanism for PCB board processing according to claim 3, characterized in that: The connecting plate (51) is symmetrically provided with adjusting nuts (55) at one end relative to the receiving groove (9), and the adjusting nuts (55) are threadedly connected to the screw (54).

6. The flipping mechanism for PCB board processing according to claim 1, characterized in that: The bottom of the tilting table (1) is provided with mounting holes (14) at both the front and rear ends.

7. The flipping mechanism for PCB board processing according to claim 1, characterized in that: It also includes a controller (3), which is located in the middle of the front side of the tilting table (1). The output end of the controller (3) is electrically connected to the input end of the servo motor (6), and the input end of the controller (3) is electrically connected to the output end of the external power supply.

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