Board turnover machine for PCB processing

Abstract

The utility model discloses a board turnover machine for PCB (printed circuit board) processing, which belongs to the technical field of PCB processing and comprises a support frame, a group of two-way moving screw rods are rotatably arranged on the support frame, support columns are slidably arranged on the outer walls of forward threads and reverse threads of each two-way moving screw rod, rotating drums are rotatably arranged at the tops of the support columns, and the rotating drums are arranged on the outer walls of the forward threads and the reverse threads of the two-way moving screw rods. Conveyor belts are movably arranged on the outer walls of the two rotary drums located at the forward threads and the outer walls of the two rotary drums located at the reverse threads respectively, and the two ends of the PCB body are placed on the two conveyor belts to be conveyed. An overturning structure is fixedly arranged between the two-way moving lead screws and comprises an overturning shaft, a U-shaped clamping plate with a cavity is fixedly arranged on the outer wall of the overturning shaft, an object sensor and a plurality of suction cups are arranged on the opposite inner walls of the U-shaped clamping plate, and the suction cups located on the upper portion are fixedly connected with telescopic rods through elastic pipes; and the cavity is communicated with a vacuum pump through a telescopic hose.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board processing, in particular to a board turning machine for PCB board processing. Background Art

[0002] PCB, full name is printed circuit board, is a substrate for assembling electronic parts. It is a printed board with point connections and printed components formed according to a predetermined design on a general substrate. The main function of PCB is to connect various electronic components to form a predetermined circuit and play a role in relay transmission.

[0003] During the PCB processing, a flipping machine is used. It is a device used in the production of printed circuit boards (PCBs). It is mainly used to flip the PCB board to the other side for processing, such as welding, testing and other processes. This equipment is usually used in SMT production lines or coating lines. By flipping the PCB board 180 degrees, reverse operation can be achieved, which effectively saves manpower and improves production efficiency and quality stability.

[0004] Most of the existing flipping machines use clamps or clamps to clamp and fix PCB boards. If the clamping force is not well controlled, the clamping surface of the PCB board will be easily damaged. In addition, the flipping machine cannot be adjusted according to the different length and width specifications of the PCB board, and its flexibility is poor. Utility Model Content

[0005] In order to solve the technical problems that when clamping and fixing the PCB board, most of the time, clamps or clamping plates are used, and the clamping surface of the PCB board is easily damaged if the clamping force is not well controlled, and the flipping machine cannot be adjusted and adapted according to the different length and width specifications of the PCB board, and has poor flexibility, the utility model provides a flipping machine for PCB board processing.

[0006] A flipping machine for PCB board processing comprises a support frame, on which a group of bidirectional movable screw rods are rotatably arranged, the outer wall of the forward thread and the reverse thread of each bidirectional movable screw rod is slidably arranged with a support column, a rotating cylinder is rotatably arranged on the top of the support column, and the outer walls of the two rotating cylinders located at the forward thread and the outer walls of the two rotating cylinders located at the reverse thread are respectively movably arranged with conveyor belts, and the two ends of the PCB board body are placed on the two conveyor belts for conveyance; a flipping structure is fixedly arranged between the group of bidirectional movable screw rods, the flipping structure comprises a flipping shaft, a U-shaped clamping plate with a cavity is fixedly arranged on the outer wall of the flipping shaft, an object sensor and a plurality of suction cups are arranged on the inner walls opposite to each other of the U-shaped clamping plate, and the suction cup located at the top is fixedly connected by an elastic tube and a telescopic rod, and the cavity is communicated with a vacuum pump through a telescopic hose.

[0007] More preferably, the support frame includes a group of inverted U-shaped rods, which are fixedly connected to each other by a horizontal plate, on which a vertical plate and a control panel are fixedly arranged, and a group of bidirectional movable screw rods are rotatably arranged at the top of the group of inverted U-shaped rods, and a synchronous gear is fixedly arranged at the same end of the group of bidirectional movable screw rods, and the two synchronous gears are movably connected by a gear belt, and one of the synchronous gears is arranged at the output end of the motor.

[0008] More preferably, an L-shaped plate is fixedly provided on the top of the support column, a rotating motor is provided on the outer wall of one of the L-shaped plates on a set of bidirectional movable screw rods, a corresponding rotating drum is rotatably provided on the side wall of the L-shaped plate and is provided at the output end of the rotating motor, and limiting strips are fixedly provided between the inner side walls of the two L-shaped plates at the forward thread and between the inner side walls of the two L-shaped plates at the reverse thread, respectively, to limit the side walls of the PCB board body.

[0009] More preferably, the flipping structure also includes a group of support blocks fixedly arranged on the top of the vertical plate, a stepper motor is arranged on the outer wall of the support block, the flipping axis is rotatably arranged between the group of support blocks and is arranged at the output end of the stepper motor, a telescopic rod is arranged on the top wall of the cavity on the upper side of the U-shaped clamping plate, the elastic tube is connected to the suction cup and the cavity, and the bottom end of the telescopic rod passes through the elastic tube and is fixedly connected to the suction cup.

[0010] More preferably, a vacuum pump is fixedly installed on the top wall of the vertical plate, one end of the telescopic hose is connected to the vacuum pump, and the other end is connected to the cavity, and the object sensor is fixedly installed on the top inner wall of the U-shaped clamping plate close to the side wall.

[0011] More preferably, the control panel is electrically connected to the motor, the rotary motor, the stepper motor, the telescopic rod, and the vacuum pump.

[0012] Compared with the prior art, the utility model has the following beneficial effects: by adjusting the bidirectional movable screw rod, the distance between the two conveyor belts can be adjusted to meet the use of PCB boards of different lengths; the U-shaped clamping plate cooperates with the suction cup to use vacuum adsorption technology, which makes the clamping and flipping of the PCB board more stable and safer, and better avoids damage to the surface of the PCB board caused by the clamp; and the entire flipping process can be preset on the control panel to achieve automated operation of the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the front view of the structure of the utility model;

[0014] Figure 2 It is a side view schematic diagram of the structure of the utility model;

[0015] Figure 3 It is a top view schematic diagram of the structure of the utility model;

[0016] Figure 4It is a schematic diagram of the structure A of the utility model;

[0017] Figure 5 This is a schematic diagram of part structure B of the utility model;

[0018] Figure 6 It is a schematic diagram of the structure C of the utility model;

[0019] Figure 7 It is a schematic diagram of partial structure D of the utility model.

[0020] In the figure: 1. support frame; 2. bidirectional movable screw rod; 3. support column; 4. rotating drum; 5. conveyor belt; 6. PCB board body; 7. flip structure; 8. flip axis; 9. cavity; 10. U-shaped clamping plate; 11. object sensor; 12. suction cup; 13. elastic tube; 14. telescopic rod; 15. telescopic hose; 16. vacuum pump; 17. inverted U-shaped rod; 18. horizontal plate; 19. vertical plate; 20. control panel; 21. synchronous gear; 22. gear belt; 23. motor; 24. L-shaped plate; 25. rotating motor; 26. limit strip; 27. support block; 28. stepper motor. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0022] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the utility model described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] In the present invention, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0024] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this utility model can be understood according to the specific circumstances. In addition, the term "plurality" should mean two or more than two.

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. Figure 1-Figure 7 The utility model is described in detail in conjunction with the embodiments.

[0026] A flip machine for PCB board processing includes a support frame 1, which includes a group of inverted U-shaped rods 17. The group of inverted U-shaped rods 17 are fixedly connected by a horizontal plate 18. A vertical plate 19 and a control panel 20 are fixedly arranged on the horizontal plate 18. A group of bidirectional movable screw rods 2 are rotatably arranged at the top of the group of inverted U-shaped rods 17. The same end of the group of bidirectional movable screw rods 2 is fixedly arranged with a synchronous gear 21. The two synchronous gears 21 are movably connected by a gear belt 22, and one of the synchronous gears 21 is arranged at the output end of a motor 23.

[0027] By rotating the bidirectional movable lead screw 2, the distance between the two conveyor belts 5 can be adjusted according to the length of the PCB board body 6. The motor 23 is automatically started through the control panel 20, and under the synchronous action of the gear belt 22, it drives the synchronous gear 21 to rotate a certain amount. Since the outer walls of the forward and reverse threads of each bidirectional movable lead screw 2 are slidably provided with support columns 3, the rotation of the two bidirectional movable lead screws 2 enables the support columns 3 to be closed or separated from each other, thereby adjusting the distance between the support columns 3.

[0028] A rotating drum 4 is rotatably arranged on the top of the support column 3, an L-shaped plate 24 is fixedly arranged on the top of the support column 3, a rotating motor 25 is arranged on the outer wall of one of the L-shaped plates 24 on a set of bidirectional movable screw rods 2, and the corresponding rotating drum 4 is rotatably arranged on the side wall of the L-shaped plate 24 and is arranged at the output end of the rotating motor 25.

[0029] The rotating motor 25 is started, and the rotating motor 25 rotates to drive the rotating drum 4 to rotate. Since the outer walls of the two rotating drums 4 located at the positive thread and the outer walls of the two rotating drums 4 located at the reverse thread are respectively provided with conveyor belts 5, the two ends of the PCB board body 6 are respectively placed on the two conveyor belts 5 for conveyance.

[0030] Limiting strips 26 are fixedly arranged between the inner walls of the two L-shaped plates 24 located at the forward thread and between the inner walls of the two L-shaped plates 24 located at the reverse thread, respectively, which can limit the side walls of the PCB board body 6. The PCB board body 6 can move and feed materials under the limitation of the limiting strips 26 on both sides.

[0031] A flipping structure 7 is fixedly arranged between a group of bidirectional movable screw rods 2, and the flipping structure 7 includes a flipping shaft 8 and a group of support blocks 27 fixedly arranged at the top of the vertical plate 19. A stepper motor 28 is arranged on the outer wall of the support block 27. The flipping shaft 8 is rotatably arranged between the group of support blocks 27 and is arranged at the output end of the stepper motor 28. Starting the stepper motor 28 can make the flipping shaft 8 fixedly flip 180 degrees in the forward and reverse directions, thereby realizing the flipping of the flipping shaft 8.

[0032] A U-shaped clamping plate 10 with a cavity 9 is fixedly provided on the outer wall of the flip shaft 8, a telescopic rod 14 is provided on the top wall of the cavity 9 on the upper side of the U-shaped clamping plate 10, an object sensor 11 and a plurality of suction cups 12 are provided on the inner wall opposite to the U-shaped clamping plate 10, and the suction cup 12 located above is fixedly connected to the telescopic rod 14 through an elastic tube 13, the object sensor 11 is fixedly provided on the top inner wall of the U-shaped clamping plate 10 close to the side wall, the cavity 9 is communicated with the vacuum pump 16 through a telescopic hose 15, the elastic tube 13 is communicated with the suction cup 12 and the cavity 9, and the bottom end of the telescopic rod 14 passes through the elastic tube 13 and is fixedly connected to the suction cup 12.

[0033] The PCB body 6 is transported forward along the conveyor belt 5. After it reaches under the object sensor 11, the object sensor 11 senses the PCB body 6 and transmits the information to the control panel 20. The control panel 20 receives the information and issues a command to stop the rotating motor 25. At this time, the conveyor belt 5 stops conveying and starts the telescopic rod 14, so that it drives the suction cup 12 located above to approach the surface of the PCB body 6 under the tension of the elastic tube 13, until it and the suction cup 12 located below are against the upper and lower surfaces of the PCB body 6.

[0034] Since the top wall of the vertical plate 19 is fixedly provided with a vacuum pump 16, one end of the telescopic hose 15 is connected to the vacuum pump 16, and the other end is connected to the cavity 9. The vacuum pump 16 is started to generate a vacuum adsorption force to the suction cup 12 through the cavity 9. After the suction cup 12 adsorbs the PCB board body 6, the stepper motor 28 is started to drive the flip shaft 8 to flip 180 degrees, and flip the PCB board body 6 to the conveyor belt 5 on the other side, so that the telescopic rod 14 is retracted upward. After the adsorption is released, the conveyor belt 5 resumes normal transportation, and the flip structure 7 flips 180 degrees in the opposite direction to return to the initial position, and the previous operation is repeated.

[0035] The control panel 20 is connected to the motor 23, the rotary motor 25, the stepper motor 28, the telescopic rod 14, and the vacuum pump 16 in telecommunication. Each step process can be pre-set in the control system of the control panel 20, and automatic flipping can be achieved through the control and feedback of the control panel 20 and each operation.

[0036] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A PCB board turning machine, comprising a support frame (1), on which a set of bidirectional movable screw rods (2) are rotatably arranged, characterized in that: A support column (3) is slidably arranged on the outer wall of the forward thread and the reverse thread of each bidirectional movable lead screw (2); a rotating drum (4) is rotatably arranged on the top of the support column (3); and conveyor belts (5) are movably arranged on the outer walls of the two rotating drums (4) located at the forward thread and the outer walls of the two rotating drums (4) located at the reverse thread respectively; and two ends of the PCB board body (6) are placed on the two conveyor belts (5) for conveyance; a flip structure (7) is fixedly arranged between a group of bidirectional movable lead screws (2); the flip structure (7) includes a flip shaft (8); a U-shaped clamping plate (10) with a cavity (9) is fixedly arranged on the outer wall of the flip shaft (8); an object sensor (11) and a plurality of suction cups (12) are arranged on the inner wall opposite to the U-shaped clamping plate (10); and the suction cup (12) located at the top is fixedly connected by an elastic tube (13) and a telescopic rod (14); and the cavity (9) is connected to a vacuum pump (16) by a telescopic hose (15).

2. A PCB board processing turning machine according to claim 1, characterized in that: The support frame (1) comprises a group of inverted U-shaped rods (17), the group of inverted U-shaped rods (17) are fixedly connected by a horizontal plate (18), a vertical plate (19) and a control panel (20) are fixedly arranged on the horizontal plate (18), a group of bidirectional movable screw rods (2) are rotatably arranged at the top of the group of inverted U-shaped rods (17), a synchronous gear (21) is fixedly arranged at the same end of the group of bidirectional movable screw rods (2), two synchronous gears (21) are movably connected by a gear belt (22), and one of the synchronous gears (21) is arranged at the output end of a motor (23).

3. A PCB board processing turning machine according to claim 2, characterized in that: An L-shaped plate (24) is fixedly arranged at the top of the support column (3); a rotating motor (25) is arranged on the outer wall of one of the L-shaped plates (24) on a set of bidirectional movable screw rods (2); a corresponding rotating drum (4) is rotatably arranged on the side wall of the L-shaped plate (24) and is arranged at the output end of the rotating motor (25); and a limiting strip (26) is fixedly arranged between the inner side walls of the two L-shaped plates (24) located at the forward thread and between the inner side walls of the two L-shaped plates (24) located at the reverse thread, respectively, so as to limit the side wall of the PCB board body (6).

4. The PCB board processing turning machine according to claim 2, characterized in that: The flip structure (7) also includes a group of support blocks (27) fixedly arranged at the top of the vertical plate (19), a stepper motor (28) is arranged on the outer wall of the support block (27), a flip shaft (8) is rotatably arranged between the group of support blocks (27) and arranged at the output end of the stepper motor (28), a telescopic rod (14) is arranged on the top wall of the cavity (9) on the upper side of the U-shaped clamping plate (10), the elastic tube (13) is connected with the suction cup (12) and the cavity (9), and the bottom end of the telescopic rod (14) passes through the elastic tube (13) and is fixedly connected with the suction cup (12).

5. The PCB board processing turning machine according to claim 4 is characterized in that: A vacuum pump (16) is fixedly arranged on the top wall of the vertical plate (19); one end of the telescopic hose (15) is connected to the vacuum pump (16) and the other end is connected to the cavity (9); and the object sensor (11) is fixedly arranged on the top inner wall of the U-shaped clamping plate (10) close to the side wall.

6. A PCB board processing turning machine according to claim 3 or 5, characterized in that: The control panel (20) is electrically connected to the motor (23), the rotary motor (25), the stepping motor (28), the telescopic rod (14), and the vacuum pump (16).

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