Board turning mechanism for PCB (Printed Circuit Board) processing

Abstract

The utility model discloses a board turning mechanism for PCB processing, and relates to the field of 180-degree turning of PCBs, the board turning mechanism comprises a fixed box, a rotating box is rotatably installed on the inner side of the fixed box, a rotating shaft rotatably connected with the fixed box is integrally formed at one end of the rotating box, the rotating shaft is of a hollow cylindrical structure, and the rotating shaft is provided with a plurality of rotating shafts. A driven gear is assembled on the outer wall of the rotating shaft in an interference fit mode, two three-way pipes are symmetrically installed on the outer side of the fixing box, electromagnetic valves are installed on exhaust pipes of the three-way pipes, and the exhaust pipes of the three-way pipes are fixedly connected with the outer wall of the fixing box through a support. And a guide rod and a two-way screw rod are symmetrically and rotationally mounted on the inner wall of the fixed box. According to the utility model, the clamping mechanism is arranged, and the air channel assembly in the clamping mechanism drives the clamping assembly to clamp the PCB, so that the PCB does not need to be reset after being rotated by 180 degrees, the turnover of one PCB can be realized by rotating by 180 degrees, and the relative efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the field of 180-degree flipping of PCB boards, in particular to a flipping mechanism for PCB board processing. Background Art

[0002] The PCB board has side A and side B. After the components on side A are installed, the PCB board needs to be flipped over and the corresponding components installed on side B. Generally, a flipping machine is used to flip the PCB board.

[0003] In the prior art, when the flip mechanism at the core position of the flip machine is in use, an electrically driven clamping method is generally used to clamp the PCB. Therefore, when the flip mechanism flips, in order to avoid the loosening of the electrical connection terminals caused by the twisting of the electrically driven wires, the flipping technology adopted is to flip it 180 degrees and reset it after the PCB board is moved out, that is: two flips of 180 degrees are performed to achieve a 180-degree flip of a single PCB board. Summary of the Invention

[0004] The purpose of the present utility model is to provide a turning mechanism for PCB board processing in order to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flip mechanism for PCB board processing, comprising a fixed box, a rotating box is rotatably installed on the inner side of the fixed box, one end of the rotating box is integrally formed with a rotating shaft rotatably connected to the fixed box, the rotating shaft is a hollow cylindrical structure, and the outer wall of the rotating shaft is interference-fitted with a driven gear, two tee pipes are symmetrically installed on the outer side of the fixed box, an electromagnetic valve is installed on the exhaust pipe of the tee pipe, the exhaust pipe of the tee pipe is fixedly connected to the outer wall of the fixed box by a bracket, a guide rod and a bidirectional screw are symmetrically rotatably installed on the inner wall of the fixed box, one end of the bidirectional screw passes through the outside of the rotating box, and the end of the bidirectional screw located on the outside of the rotating box is integrally formed with a hexagonal hole;

[0006] One end of the rotating shaft is integrally formed with a rotating ring protruding outward, the outside of the fixed box is provided with a circular groove for the rotating ring to rotate, both ends of the outer wall of the bidirectional screw are threadedly connected to brackets, the brackets are slidably connected to the guide rod, a support plate is fixedly installed on the inner side of the bracket, and a rotating tube is fixedly connected to the outer side of the support plate, and the input end of the rotating tube is rotatably connected to the output tube of the tee pipe;

[0007] The support plate is equipped with a pneumatic clamping mechanism for clamping the PCB board, and the pneumatic clamping mechanism includes: a clamping component, an airway component and a synchronization component;

[0008] The clamping assembly is slidably installed inside the support plate and extends to the inner side of the support plate. The airway assembly is opened inside the support plate and extends to the outer side of the support plate. The synchronization assembly is distributed at one end of the support plate and the end of the clamping assembly.

[0009] As a further solution of the present invention: the air duct assembly includes an S-shaped air duct opened inside the support plate, the input end of the S-shaped air duct is located on the outside of the support plate and is aligned with the output end of the rotating tube, a horizontal air duct is horizontally opened inside the support plate, the horizontal air duct is located at the output end of the S-shaped air duct, two vertical air ducts are symmetrically opened inside the S-shaped air duct, the two vertical air ducts are distributed on both sides below the horizontal air duct, and the inner cavity of the vertical air duct is connected to the inner cavity of the horizontal air duct.

[0010] As a further solution of the present invention: the clamping assembly includes an upper slide groove opened inside the tee pipe, the inner wall of the upper slide groove is slidably connected to an upper slider, one end of the upper slide slide passes through the inner side of the support plate, and the end of the upper slide slide located on the inner side of the support plate is fixedly connected to the upper clamping plate, the clamping assembly also includes a lower slide groove opened inside the support plate, the lower slide groove is located below the upper slide groove, and the inner wall of the lower slide groove is slidably connected to a lower slider, one end of the lower slider passes through the inner side of the support plate, and the end of the lower slider located on the inner side of the support plate is fixedly connected to the lower clamping plate.

[0011] As a further solution of the present invention: the clamping assembly also includes a piston plate that is slidably connected to the inner wall of the vertical airway up and down, and the bottom end of the piston plate is integrally formed with a vertical rod that penetrates into the inner cavity of the upper slide groove, and the bottom end of the vertical rod is fixedly connected to the top of the upper sliding block, and a spring is provided between the bottom end of the inner wall of the vertical airway and the bottom end of the piston plate, and the spring is socketed with the vertical rod.

[0012] As a further solution of the present invention: the synchronization assembly includes a No. 1 rack integrally formed at the two ends of the upper splint and a No. 2 rack integrally formed at the two ends of the lower splint, and a reversing gear is engaged between the No. 1 rack and the No. 2 rack, and the two reversing gears are rotatably installed on the two ends of the support plate.

[0013] As a further solution of the present invention: the input pipe of the three-way pipe is connected to the air pump through a pipeline, and a one-way air inlet valve is installed on the pipeline.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By setting up a clamping mechanism, the airway component in the clamping mechanism drives the clamping component to clamp the PCB board. There is no need to reset after rotating 180 degrees. A PCB board can be flipped by rotating 180 degrees, which is relatively more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 It is another perspective structural entity of the utility model;

[0018] Figure 3 This is a schematic structural diagram of the synchronization component of the present utility model;

[0019] Figure 4 This is a schematic structural diagram of the airway assembly of the present invention;

[0020] Figure 5 This is a schematic structural diagram of the clamping assembly of the present invention.

[0021] In the figure: 1. Fixed box; 2. Rotating box; 3. Rotating shaft; 4. Rotating pipe; 5. T-tube; 6. Solenoid valve; 7. Guide rod; 8. Bidirectional screw; 9. Hexagonal hole; 10. Rotating ring; 11. Support plate; 12. Upper clamping plate; 13. Lower clamping plate; 14. Driven gear; 15. S-shaped air duct; 16. Reversing gear; 17. Rack No. 1; 18. Rack No. 2; 19. Horizontal air duct; 20. Vertical air duct; 21. Piston plate; 22. Vertical rod; 23. Spring; 24. Upper slide; 25. Lower slide chute; 26. Lower slide; 27. Upper slide chute. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 5In the embodiment of the present utility model, a flip mechanism for PCB board processing includes a fixed box 1, a rotating box 2 is rotatably installed on the inner side of the fixed box 1, and one end of the rotating box 2 is integrally formed with a rotating shaft 3 rotatably connected to the fixed box 1. The rotating shaft 3 is a hollow cylindrical structure, and the outer wall of the rotating shaft 3 is interference-fitted with a driven gear 14. Two three-way pipes 5 are symmetrically installed on the outside of the fixed box 1, and an electromagnetic valve 6 is installed on the exhaust pipe of the three-way pipe 5. The exhaust pipe of the three-way pipe 5 is fixedly connected to the outer wall of the fixed box 1 through a bracket. A guide rod 7 and a bidirectional screw 8 are symmetrically rotatably installed on the inner wall of the fixed box 1. One end of the bidirectional screw 8 passes through the outside of the rotating box 2, and the end of the bidirectional screw 8 located on the outside of the rotating box 2 is integrally formed with a hexagonal hole 9; one end of the rotating shaft 3 is integrally formed with an outward The protruding rotating ring 10, the outside of the fixed box 1 is provided with a circular groove for the rotating ring 10 to rotate, the outer ends of the outer wall of the bidirectional screw 8 are threadedly connected with brackets, the brackets are slidably connected to the guide rod 7, the inner side of the bracket is fixedly installed with a support plate 11, the outer side of the support plate 11 is fixedly connected with a rotating tube 4, the input end of the rotating tube 4 is rotatably connected to the output tube of the three-way pipe 5; a pneumatic clamping mechanism for clamping the PCB board is installed on the support plate 11, the pneumatic clamping mechanism includes: a clamping assembly, an airway assembly and a synchronization assembly; the clamping assembly is slidably installed inside the support plate 11 and extends to the inner side of the support plate 11, the airway assembly is opened inside the support plate 11 and extends to the outside of the support plate 11, and the synchronization assembly is distributed at one end of the support plate 11 and the end of the clamping assembly.

[0024] In this embodiment, before the PCB board entering the rotating box 2 is turned over, the air pump is started to input external air into the air channel assembly. Under the action of air pressure, the clamping assembly clamps the PCB board. Then, the rotating motor is started. The servo motor drives the driving gear to rotate. The driving gear drives the driven gear 14 meshing with it to rotate 180 degrees. The rotating driven gear 14 drives the rotating shaft 3 to rotate synchronously. The rotating shaft 3 drives the rotating box 2 fixedly connected to it to rotate synchronously. At the same time, the rotating box 2 drives the rotating ring 10 to rotate synchronously in the circular groove. At this time, the three-way pipe 5 and the solenoid valve 6 remain stationary, and the purpose of turning the PCB board 180 degrees is achieved.

[0025] Before processing PCB boards of different sizes, use a tool to dock with the hexagonal hole 9 and drive the bidirectional screw 8 to rotate. At this time, the two brackets move toward or away from each other under the action of the thread, and the distance between the two support plates 11 can be adjusted to adapt to PCB boards of different sizes.

[0026] Please refer to Figure 4 and Figure 5The air duct assembly includes an S-shaped air duct 15 opened inside the support plate 11. The input end of the S-shaped air duct 15 is located on the outside of the support plate 11 and is aligned with the output end of the rotating tube 4. A horizontal air duct 19 is horizontally opened inside the support plate 11. The horizontal air duct 19 is located at the output end of the S-shaped air duct 15. Two vertical air ducts 20 are symmetrically opened inside the S-shaped air duct 15. The two vertical air ducts 20 are distributed on both sides below the horizontal air duct 19, and the inner cavity of the vertical air duct 20 is connected to the inner cavity of the horizontal air duct 19.

[0027] In this embodiment: first, by starting the air pump, the air pump inputs the outside air into the three-way pipe 5 through the pipeline, and inputs the gas into the S-shaped airway 15 through the output end of the three-way pipe 5, and enters the horizontal airway 19, and then enters the vertical airway 20 through the horizontal airway 19.

[0028] Please refer to Figure 4 and Figure 5 The clamping assembly includes an upper slide groove 27 opened inside the tee pipe 5, and the inner wall of the upper slide groove 27 is slidably connected to the upper slider 24. One end of the upper slider 24 passes through the inner side of the support plate 11, and the end of the upper slider 24 located on the inner side of the support plate 11 is fixedly connected to the upper clamping plate 12. The clamping assembly also includes a lower slide groove 25 opened inside the support plate 11. The lower slide groove 25 is located below the upper slide groove 27, and the inner wall of the lower slide groove 25 is slidably connected to the lower slider 26. One end of the lower slider 26 passes through To the inner side of the support plate 11, and the lower slider 26 is located at one end of the inner side of the support plate 11 and is fixedly connected to the lower clamping plate 13. The clamping assembly also includes a piston plate 21 that is slidably connected to the inner wall of the vertical airway 20. The bottom end of the piston plate 21 is integrally formed with a vertical rod 22 that passes through the inner cavity of the upper slide groove 27. The bottom end of the vertical rod 22 is fixedly connected to the top of the upper slider 24. A spring 23 is provided between the bottom end of the inner wall of the vertical airway 20 and the bottom end of the piston plate 21, and the spring 23 is socketed with the vertical rod 22.

[0029] In this embodiment, the incoming air pressure acts on the top of the piston plate 21. At this time, the piston plate 21 moves downward along the vertical air channel 20 and compresses the spring 23. The downwardly moving piston plate 21 pushes the upper slider 24 to move downward in the upper slide groove 27 through the vertical rod 22. The downwardly moving upper slider 24 drives the upper clamping plate 12 to move downward. The downwardly moving upper clamping plate 12 drives the lower clamping plate 13 to move upward synchronously through the synchronization component, completing the clamping of the PCB board.

[0030] After clamping, it is flipped 180 degrees. After the flip is completed, the clamping of the PCB board is released. At this time, the solenoid valve 6 is opened, and the gas in the air channel assembly is discharged through the exhaust pipe of the three-way pipe 5. As the air pressure is discharged, the spring 23 is reset, and the upper clamping plate 12 and the lower clamping plate 13 are reset, and the clamping of the PCB board is released.

[0031] Please refer to Figure 3 The synchronization assembly includes a No. 1 rack 17 integrally formed at the two ends of the upper splint 12 and a No. 2 rack 18 integrally formed at the two ends of the lower splint 13. A reversing gear 16 is engaged between the No. 1 rack 17 and the No. 2 rack 18. The two reversing gears 16 are rotatably mounted on the two ends of the support plate 11.

[0032] In this embodiment, when the upper splint 12 moves downward, the No. 1 rack 17 moves downward synchronously. At this time, the reversing gear 16 rotates, and the rotating reversing gear 16 drives the No. 2 rack 18 to move upward, thereby achieving the purpose of the upper splint 12 and the lower splint 13 moving toward or away from each other synchronously.

[0033] Please refer to Figure 1 The input pipe of the tee pipe 5 is connected to the air pump through a pipeline, and a one-way air inlet valve is installed on the pipeline.

[0034] In this embodiment, the provision of the one-way air inlet valve can ensure that the air pressure enters the airway component in an orderly manner when the solenoid valve 6 is in a closed state.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flip mechanism for PCB board processing, comprising a fixed box (1), a rotating box (2) rotatably mounted inside the fixed box (1), and a rotating shaft (3) rotatably connected to the fixed box (1) being integrally formed at one end of the rotating box (2), characterized in that: The rotating shaft (3) is a hollow cylindrical structure, and the outer wall of the rotating shaft (3) is interference-fitted with a driven gear (14). Two three-way pipes (5) are symmetrically installed on the outer side of the fixed box (1). An electromagnetic valve (6) is installed on the exhaust pipe of the three-way pipe (5). The exhaust pipe of the three-way pipe (5) is fixedly connected to the outer wall of the fixed box (1) through a bracket. A guide rod (7) and a bidirectional screw (8) are symmetrically rotated and installed on the inner wall of the fixed box (1). One end of the bidirectional screw (8) passes through the outside of the rotating box (2), and the end of the bidirectional screw (8) located outside the rotating box (2) is integrally formed with a hexagonal hole (9); One end of the rotating shaft (3) is integrally formed with a rotating ring (10) protruding outward, and a circular groove for the rotating ring (10) to rotate is provided on the outside of the fixed box (1). Both ends of the outer wall of the bidirectional screw (8) are threadedly connected to brackets, and the brackets are slidably connected to the guide rod (7). A support plate (11) is fixedly installed on the inner side of the bracket, and a rotating tube (4) is fixedly connected to the outer side of the support plate (11), and the input end of the rotating tube (4) is rotatably connected to the output tube of the three-way pipe (5); A pneumatic clamping mechanism for clamping the PCB board is installed on the support plate (11), and the pneumatic clamping mechanism comprises: a clamping component, an airway component, and a synchronization component; The clamping assembly is slidably mounted inside the support plate (11) and extends to the inner side of the support plate (11); the airway assembly is opened inside the support plate (11) and extends to the outer side of the support plate (11); and the synchronization assembly is distributed at one end of the support plate (11) and at an end of the clamping assembly.

2. A turning mechanism for PCB board processing according to claim 1, characterized in that: The air duct assembly includes an S-shaped air duct (15) opened inside the support plate (11), the input end of the S-shaped air duct (15) is located outside the support plate (11) and is aligned with the output end of the rotating tube (4), a horizontal air duct (19) is horizontally opened inside the support plate (11), the horizontal air duct (19) is located at the output end of the S-shaped air duct (15), and two vertical air ducts (20) are symmetrically opened inside the S-shaped air duct (15), the two vertical air ducts (20) are distributed on both sides below the horizontal air duct (19), and the inner cavity of the vertical air duct (20) is connected to the inner cavity of the horizontal air duct (19).

3. A turning mechanism for PCB board processing according to claim 2, characterized in that: The clamping assembly includes an upper slide groove (27) provided inside the three-way pipe (5), an upper slider (24) is slidably connected to the inner wall of the upper slide groove (27), one end of the upper slider (24) passes through the inner side of the support plate (11), and the end of the upper slider (24) located on the inner side of the support plate (11) is fixedly connected to the upper clamping plate (12), and the clamping assembly also includes a lower slide groove (25) provided inside the support plate (11), the lower slide groove (25) is located below the upper slide groove (27), and the inner wall of the lower slide groove (25) is slidably connected to the lower slider (26), one end of the lower slider (26) passes through the inner side of the support plate (11), and the end of the lower slider (26) located on the inner side of the support plate (11) is fixedly connected to the lower clamping plate (13).

4. A turning mechanism for PCB board processing according to claim 3, characterized in that: The clamping assembly also includes a piston plate (21) connected to the inner wall of the vertical airway (20) in an upward and downward sliding manner. The bottom end of the piston plate (21) is integrally formed with a vertical rod (22) that penetrates into the inner cavity of the upper slide groove (27). The bottom end of the vertical rod (22) is fixedly connected to the top end of the upper slider (24). A spring (23) is provided between the bottom end of the inner wall of the vertical airway (20) and the bottom end of the piston plate (21). The spring (23) is sleeved with the vertical rod (22).

5. A turning mechanism for PCB board processing according to claim 4, characterized in that: The synchronization assembly includes a No. 1 rack (17) integrally formed at the two ends of the upper clamping plate (12) and a No. 2 rack (18) integrally formed at the two ends of the lower clamping plate (13), and a reversing gear (16) is meshed between the No. 1 rack (17) and the No. 2 rack (18), and the two reversing gears (16) are rotatably mounted on the two ends of the support plate (11).

6. The turning mechanism for PCB board processing according to claim 1, characterized in that: The input pipe of the three-way pipe (5) is connected to the air pump through a pipeline, and a one-way air inlet valve is installed on the pipeline.

Images