Circuit board flipping device

Abstract

The present invention belongs to the technical field of circuit board processing, and specifically is a circuit board flipping device, comprising a base frame, a workbench is fixed on the top of the base frame, a feeding conveyor belt is arranged at one end of the workbench opening, a discharging conveyor belt is arranged at one side of the workbench opening, and a moving component is arranged inside the workbench; the moving component comprises a bogie arranged inside the workbench, and a flipping component is arranged above the flipping frame; the flipping frame can be driven to clamp the circuit board by a second motor to drive the moving frames to approach each other, and the circuit board can be automatically corrected by rollers during the clamping process, and the spring buffers the rollers during the clamping and correction process, and when the flipping frame drives the circuit board to flip, the steel ball is stuck in the inside of the groove by gravity, which can prevent the teeth from rotating, and can prevent the circuit board from falling off and falling to the ground due to the rolling of the teeth, so that the circuit board can be corrected during the process of the flipping frame clamping the circuit board.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit board processing, in particular to a circuit board turning device. Background Art

[0002] The circuit board is an indispensable component inside an electrical device. The surface of the circuit board will be welded with electronic components necessary for the operation of various devices to support the functions of the electrical equipment. The circuit board needs to be flipped during production and processing, and the other side of the circuit board can be processed after flipping.

[0003] The prior art also proposes some circuit board flipping solutions. For example, a patent application with publication number CN108689123A discloses an automatic circuit board flipping device, which performs other operations on the circuit board simultaneously during the flipping process to reduce processing time.

[0004] When the above technical solution is used, the circuit board needs to be straightened before it can be put into the conveyor belt. The process of straightening the circuit board takes a lot of time. When an ordinary conveyor belt is used to transport the circuit board, the circuit board does not need to be straightened, which can save a lot of time. However, due to the improper placement of the circuit board, the side of the circuit board is easily damaged during the clamping process.

[0005] To this end, the present invention provides a circuit board turning device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a circuit board turning device described in the present invention comprises a base frame, a workbench is fixed on the top of the base frame, a feeding conveyor belt is arranged at one end of the opening of the workbench, and a discharging conveyor belt is arranged on one side of the opening of the workbench, teeth are fixed on the top of the interior of the workbench, and a moving component is arranged inside the workbench; the moving component comprises a bogie arranged inside the workbench, a steering block is rotatably connected to the top of the interior of the workbench, one end of the bogie is fixedly connected to the steering block, a toothed disc is fixed on the top of the steering block, a first motor is installed on the top of the workbench, a gear is fixed on the end of the rotating shaft of the first motor, and the gear of the first motor is meshed with the toothed disc; a turning frame is arranged below the bogie, a moving plate is fixed on the bottom end of the bogie, moving frames are arranged on both sides of the moving plate, the moving frame is rotatably connected to the turning frame, The transmission gear of the present invention is a gear shifting device, and the gear shifting device is a gear shifting device. The gear shifting device is a gear shifting device, and the gear shifting device is a gear shifting device. The gear shifting device is a gear shifting device, and the gear shifting device is a gear shifting device.

[0008] Preferably, a movable hole is opened inside the movable plate, a second motor is installed in the middle of the top of the movable plate, an output gear is fixed to the end of the rotating shaft of the second motor, the output gear is rotatably connected between the two movable holes, the movable frame is inserted into the movable hole, a tooth plate is fixed at one end of the movable frame close to the output gear, and the tooth plate is meshingly connected to the output gear.

[0009] Preferably, a transmission shaft is fixed on both sides of the second pulley, a telescopic hole is opened inside the third pulley, the inner diameter of the telescopic hole matches the outer diameter of the transmission shaft, and the third pulley forms a sliding structure outside the transmission shaft through the telescopic hole.

[0010] Preferably, the deviation correction component includes a guide hole opened on the side of the flip frame away from the fourth pulley, and a plurality of guide holes are arranged at equal intervals on one side of the flip frame, a telescopic rod is inserted into the inside of the guide hole, and a movable cavity is opened inside the flip frame, a spring is fixed to one end of the telescopic rod close to the fourth pulley, and the end of the spring away from the telescopic rod is fixedly connected to the inside of the movable cavity of the flip frame.

[0011] Preferably, a support block is fixed to one end of the telescopic rod away from the flip frame, and a roller is rotatably connected inside the support block.

[0012] Preferably, a rotating column is fixed to the top of the roller, a rotating hole is opened inside the support block, the rotating column is rotatably connected inside the rotating hole, and a limiting turntable is fixed to the top of the rotating column.

[0013] Preferably, a plurality of grooves are provided at equal intervals on the outer side of the rotating column, a storage cavity is provided on the end of the rotating hole close to the bogie, a fixing cavity is provided on the end of the storing cavity close to the rotating hole, the fixing cavity is connected with the interior of the rotating hole, a steel ball is arranged inside the storing cavity, and a flip plate is rotatably connected inside the fixing cavity.

[0014] Preferably, the inner diameter of the groove is smaller than the outer diameter of the steel ball, and a snap-fit ​​structure is formed between the groove and the steel ball.

[0015] Preferably, the flip plate is provided with two plate bodies of different lengths, and the length of the plate body close to the fixing cavity is greater than that of the plate body close to the receiving cavity.

[0016] Preferably, a slot is provided above the storage cavity, and an anti-slip pad is fixed to the shorter end of the flip plate.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A circuit board flipping device described in the present invention drives the flipping frame to clamp the circuit board by a second motor to drive the moving frame closer together. The circuit board can be automatically corrected by rollers during the clamping process. The spring buffers the rollers during the clamping and correction process. When the flipping frame drives the circuit board to flip, the steel ball is stuck into the inside of the groove by gravity, which can stop the teeth from rotating, and can prevent the circuit board from falling off and onto the ground due to the rolling of the teeth. The circuit board can be corrected during the process of the flipping frame clamping the circuit board.

[0019] 2. The circuit board flipping device described in the present invention can transfer the position of the circuit board by driving the bogie to rotate through the first motor. During the transfer process, the gear teeth drive the transmission gear to rotate so that the flipping frame can drive the circuit board to flip 180°, thereby realizing the synchronous operation of moving the circuit board and flipping the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 It is a schematic diagram of the workbench structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the overturning frame in the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of the workbench in the present invention;

[0025] Figure 5 It is a schematic diagram of the rotating rod structure in the present invention;

[0026] Figure 6 It is a schematic diagram of the transmission shaft structure in the present invention;

[0027] Figure 7 It is a schematic diagram of the internal structure of the movable plate in the present invention;

[0028] Figure 8 It is a schematic diagram of the structure of the overturning frame in the present invention;

[0029] Fig. 9 It is a schematic diagram of the internal structure of the support block in the present invention;

[0030] Fig.10 yes Fig. 9 A partial enlarged view of point A in the middle.

[0031] In the figure: 1, chassis; 2, workbench; 21, teeth; 3, feed conveyor belt; 4, discharge conveyor belt; 5, steering rack; 51, steering block; 511, toothed disc; 52, first motor; 6, flip rack; 61, roller; 611, rotating column; 612, groove; 62, telescopic rod; 621, support block; 622, rotating hole; 623, storage cavity; 624, steel ball; 625, fixed cavity; 626, slot; 6 27. flip plate; 628. anti-slip pad; 63. guide hole; 64. spring; 7. movable plate; 71. movable hole; 72. second motor; 721. output gear; 73. movable frame; 731. tooth plate; 8. rotating rod; 81. transmission gear; 82. first pulley; 83. second pulley; 831. transmission shaft; 84. third pulley; 841. bracket; 842. telescopic hole; 85. fourth pulley. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] like Figures 1 to 5 As shown, a circuit board turning device described in an embodiment of the present invention includes a base frame 1, a workbench 2 is fixed on the top of the base frame 1, a feed conveyor belt 3 is arranged at one end of the opening of the workbench 2, a discharge conveyor belt 4 is arranged on one side of the opening of the workbench 2, a tooth 21 is fixed at the top of the inside of the workbench 2, and a moving component is arranged inside the workbench 2; the moving component includes a bogie 5 arranged inside the workbench 2, a steering block 51 is rotatably connected to the top of the inside of the workbench 2, one end of the bogie 5 is fixedly connected to the steering block 51, a toothed disc 511 is fixed to the top of the steering block 51, a first motor 52 is installed on the top of the workbench 2, a gear is fixed to the end of the rotating shaft of the first motor 52, and the gear of the first motor 52 is meshed and connected with the toothed disc 511; a turning frame 6 is arranged below the bogie 5, a moving plate 7 is fixed to the bottom end of the bogie 5, moving frames 73 are arranged on both sides of the moving plate 7, the moving frame 73 is rotatably connected to the turning frame 6, and a correction device is arranged on one side of the turning frame 6. Component, a flip component is arranged above the flip frame 6; the flip component includes a rotating rod 8 arranged above the bogie 5, both ends of the rotating rod 8 are rotatably connected with a support plate, the bottom end of the support plate is fixedly connected to the bogie 5, a transmission gear 81 is fixed to the outside of the rotating rod 8, a first pulley 82 is fixed to the end of the rotating rod 8 away from the bogie 5, a second pulley 83 is arranged below the first pulley 82, the first pulley 82 and the second pulley 83 are connected by a belt, and the two sides of the second pulley 83 are also movably connected with a support plate, the bottom end of the support plate is fixedly connected to the moving plate 7, and the two sides of the second pulley 83 are provided with a third pulley 84, the outside of the third pulley 84 is rotatably connected with a bracket 841, the bottom end of the bracket 841 is fixedly connected to the top of the moving frame 73, and a fourth pulley 85 is arranged below the third pulley 84, the third pulley 84 is connected to the fourth pulley 85 by a belt, and the fourth pulley 85 is fixedly connected to the rotating shaft of the flip frame 6;

[0034] When processing a circuit board, it is necessary to process both sides of it, so the circuit board needs to be turned over during the processing. When the circuit board is turned over, it is transported to the front end of the workbench 2 through the feed conveyor belt 3. At this time, the two sides of the circuit board can be clamped by the two flip frames 6. The direction of the circuit board may be incorrect during the clamping process. At this time, the circuit board will be straightened during the clamping process through the correction component. After the clamping is completed, the first motor 52 is started to drive the toothed disc 511 to rotate, the toothed disc 511 drives the steering block 51 to rotate, and the steering block 51 drives the steering rack 5 to rotate in the direction of the discharge conveyor belt 4. During this process, the transmission gear 81 will pass through the position of the teeth 21, and the teeth 21 are engaged with the transmission gear 81 to make the transmission gear 81 rotate. During the rotation of the transmission gear 81, the rotating rod 8 will drive The first pulley 82 rotates, and the first pulley 82 drives the second pulley 83 to rotate through the belt, and the second pulley 83 drives the third pulleys 84 on both sides to rotate synchronously. When the third pulley 84 rotates, it will drive the fourth pulley 85 to rotate through the belt, and the fourth pulley 85 can drive the flip frame 6 to flip through the rotating shaft. The flip frame 6 can complete a 180° flip before moving to the position of the discharge conveyor belt 4, so that the circuit board can be flipped to the other side. Then the flip frame 6 is released and the circuit board can be placed on the top of the discharge conveyor belt 4 and transported to the next process. Then the first motor 52 drives the bogie 5 to rotate in the opposite direction to reset the flip frame 6 to the top of the feed conveyor belt 3. Then the feed conveyor belt 3 continues to transport the circuit board to the front end of the workbench 2. In this reciprocating manner, the circuit board can be automatically flipped.

[0035] like Figure 7 As shown, a movable hole 71 is opened inside the movable plate 7, a second motor 72 is installed in the middle of the top of the movable plate 7, an output gear 721 is fixed to the end of the rotating shaft of the second motor 72, the output gear 721 is rotatably connected between the two movable holes 71, a movable frame 73 is inserted inside the movable hole 71, and a tooth plate 731 is fixed at one end of the movable frame 73 close to the output gear 721, and the tooth plate 731 is meshed with the output gear 721;

[0036] When clamping the circuit board, in the initial state, the spacing between the moving frames 73 is at the maximum, and the second motor 72 is started to drive the output gear 721 to rotate. At this time, the output gear 721 is engaged with the tooth plate 731 to drive the moving frame 73 to extend and retract inside the movable hole 71, and the two moving frames 73 are close to each other. The moving frame 73 drives the flip frame 6 to move synchronously, so that the flip frame 6 can clamp both sides of the circuit board. The spacing between the moving frames 73 can be freely controlled, and circuit boards of different sizes within a range can be clamped, which can make the flip frame 6 more applicable.

[0037] like Figures 5 and 6As shown, a transmission shaft 831 is fixed on both sides of the second pulley 83, and a telescopic hole 842 is opened inside the third pulley 84. The inner diameter of the telescopic hole 842 matches the outer diameter of the transmission shaft 831. The third pulley 84 forms a sliding structure outside the transmission shaft 831 through the telescopic hole 842.

[0038] During the movement of the mobile frame 73, the bracket 841 will be driven to move synchronously. At this time, the bracket 841 will drive the third pulley 84 to move. In order not to affect the rotation of the third pulley 84, a telescopic hole 842 is set. The telescopic hole 842 is always sleeved on the outside of the transmission shaft 831. When the bracket 841 drives the third pulley 84 to move, it slides on the outside of the transmission shaft 831 through the telescopic hole 842. The transmission shaft 831 can always provide rotational power to the third pulley 84, which can solve the transmission problem of the second pulley 83 to the third pulley 84 when the distance between the mobile frames 73 changes.

[0039] like Figures 7 and 8 As shown, the deviation correction component includes a guide hole 63 opened on the side of the flip frame 6 away from the fourth pulley 85, and a plurality of guide holes 63 are arranged at equal intervals on one side of the flip frame 6. A telescopic rod 62 is inserted into the guide hole 63, and an active cavity is opened inside the flip frame 6. A spring 64 is fixed to one end of the telescopic rod 62 close to the fourth pulley 85, and one end of the spring 64 away from the telescopic rod 62 is fixedly connected to the inside of the active cavity of the flip frame 6.

[0040] During the process of the flip frame 6 clamping the circuit board, the flip frame 6 directly contacts the circuit board and may cause damage to the side of the circuit board. Therefore, a telescopic rod 62 is provided. When the circuit board is clamped, the telescopic rod 62 is pushed to extend and retract inside the guide hole 63. At this time, the telescopic rod 62 is supported by the spring 64. The spring 64 also buffers the telescopic rod 62, so that the circuit board has a buffer distance during the clamping process. The elastic force of the spring 64 pushes the telescopic rod 62 to clamp the circuit board, which can prevent the two sides of the circuit board from being damaged by clamping.

[0041] like Figures 7 and 8 As shown, a support block 621 is fixed to one end of the telescopic rod 62 away from the flip frame 6, and a roller 61 is rotatably connected inside the support block 621;

[0042] When the flip frame 6 clamps the circuit board, the roller 61 will contact the circuit board. The circuit board may be skewed when in contact. When the flip frame 6 is tightened, the roller 61 pushes the circuit board to automatically straighten. During the straightening process, the roller 61 rolls with the movement of the circuit board, which can reduce the friction between the circuit board and the flip frame 6 and prevent damage to the circuit board during the correction process.

[0043] like Figures 8 to 9As shown, a rotating column 611 is fixed to the top of the roller 61, a rotating hole 622 is opened inside the support block 621, the rotating column 611 is rotatably connected inside the rotating hole 622, and a limited rotating disk is fixed to the top of the rotating column 611;

[0044] When the roller 61 rotates, it will rotate inside the rotating hole 622 through the rotating column 611. The roller 61 can be connected to the telescopic rod 62 through the supporting block 621, so that the roller 61 can transmit the telescopic rod 62 when it is squeezed.

[0045] like Figures 9 and 10 As shown, a plurality of grooves 612 are provided at equal intervals on the outer side of the rotating column 611, a receiving cavity 623 is provided at one end of the rotating hole 622 close to the bogie 5, a fixing cavity 625 is provided at one end of the storing cavity 623 close to the rotating hole 622, the fixing cavity 625 is connected to the inside of the rotating hole 622, a steel ball 624 is provided inside the storing cavity 623, and a flip plate 627 is rotatably connected inside the fixing cavity 625;

[0046] During the process of the flipping frame 6 driving the circuit board to flip, the roller 61 can roll, which may cause the circuit board to slide through the roller 61. After the circuit board slides, it will be damaged. Therefore, it is necessary to limit the roller 61 during the flipping process of the flipping frame 6. The flipping frame 6 will flip in the direction away from the bogie 5 during the flipping process. At this time, the angle of the support block 621 changes with the flipping of the flipping frame 6. The support block 621 synchronously drives the storage cavity 623 to flip. During the flipping process, the steel ball 624 inside the storage cavity 623 will roll along the cavity of the storage cavity 623 toward the inside of the fixed cavity 625. During the rolling process, the steel ball 624 will hit the flipping plate 627, and then the steel ball 624 will enter the flipping plate 627. The steel ball 624 is inserted into the interior of the flip plate 627 and drives the flip plate 627 to turn in the direction of the groove 612. When the steel ball 624 moves to the interior of the fixed cavity 625, one end of the steel ball 624 is stuck in the interior of the flip plate 627, and one quarter of the other end of the steel ball 624 is stuck in the interior of the groove 612. At this time, the steel ball 624 can prevent the rotating column 611 from rotating. During this process, the flip plate 627 can support the steel ball 624 to prevent the circuit board from driving the roller 61 to rotate during the flipping of the flip frame 6. When the flip frame 6 is flipped and reset, the steel ball 624 will drive the flip plate 627 to flip in the opposite direction due to gravity, and then the steel ball 624 returns to the interior of the storage cavity 623.

[0047] like Figures 9 and 10 As shown, the inner diameter of the groove 612 is smaller than the outer diameter of the steel ball 624, and a snap-fit ​​structure is formed between the groove 612 and the steel ball 624;

[0048] The inner diameter of the groove 612 is smaller than the outer diameter of the steel ball 624 so that only a portion of the steel ball 624 can enter the interior of the groove 612, thereby preventing the outer diameter of the steel ball 624 from being too small to play a limiting role.

[0049] like Figures 9 and 10 As shown, the flip plate 627 is provided with two plates of different lengths, and the length of the plate close to the fixing cavity 625 is greater than the length of the plate close to the receiving cavity 623;

[0050] When the flip plate 627 is reset, the plate body on the side close to the fixed cavity 625 is longer and therefore heavier, so that the long plate body can push the short plate body to reset during the flipping process.

[0051] like Figures 9 and 10 As shown, a slot 626 is provided above the storage cavity 623, and an anti-slip pad 628 is fixed to the shorter end of the flip plate 627;

[0052] When the long plate body of the flip plate 627 pushes the short plate body to reset, the short plate body will be stuck into the inside of the slot 626. At this time, the anti-slip pad 628 at one end of the short plate body can be clamped between the flip plate 627 and the slot 626, so that the flip plate 627 can be limited inside the slot 626, which can prevent the flip plate 627 from flipping over prematurely when the angle of the storage cavity 623 changes, causing the steel ball 624 to be unable to enter the flip plate 627.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A circuit board turning device, characterized in that: It comprises a base frame (1), a workbench (2) is fixed at the top of the base frame (1), a feeding conveyor belt (3) is arranged on one side of the opening of the workbench (2), a discharging conveyor belt (4) is arranged on the side of the opening of the workbench (2) adjacent to the feeding conveyor belt (3), teeth (21) are fixed at the top of the interior of the workbench (2), and a moving component is arranged inside the workbench (2); The moving assembly comprises a bogie (5) arranged inside the workbench (2); a top end inside the workbench (2) is rotatably connected to a steering block (51); one end of the bogie (5) is fixedly connected to the steering block (51); a toothed disc (511) is fixedly connected to the top end of the steering block (51); a first motor (52) is installed at the top end of the workbench (2); a gear is fixedly connected to the end of the rotating shaft of the first motor (52); and the gear of the first motor (52) is meshingly connected to the toothed disc (511); A turning frame (6) is arranged below the bogie (5), a moving plate (7) is fixed to the bottom end of the bogie (5), moving frames (73) are arranged on both sides of the moving plate (7), the moving frames (73) are rotatably connected to the turning frame (6), a deviation correction component is arranged on one side of the turning frame (6), and a turning component is arranged above the turning frame (6); The tilting assembly comprises a rotating rod (8) arranged above the bogie (5), both ends of the rotating rod (8) are rotatably connected to support plates, the bottom end of the support plate is fixedly connected to the bogie (5), a transmission gear (81) is fixed to the outside of the rotating rod (8), a first belt pulley (82) is fixed to the end of the rotating rod (8) away from the bogie (5), a second belt pulley (83) is arranged below the first belt pulley (82), the first belt pulley (82) and the second belt pulley (83) are connected by a belt, and both sides of the second belt pulley (83) are also movable. The movable frame (73) is rotatably connected to a support plate, the bottom end of the support plate is fixedly connected to the movable frame (7), third pulleys (84) are arranged on both sides of the second pulley (83), the outside of the third pulley (84) is rotatably connected to a bracket (841), the bottom end of the bracket (841) is fixedly connected to the top end of the movable frame (73), a fourth pulley (85) is arranged below the third pulley (84), the third pulley (84) and the fourth pulley (85) are connected by a belt, and the fourth pulley (85) is fixedly connected to the rotating shaft of the flip frame (6); A movable hole (71) is provided inside the movable plate (7), a second motor (72) is installed in the middle of the top of the movable plate (7), an output gear (721) is fixed to the end of the rotating shaft of the second motor (72), the output gear (721) is rotatably connected between the two movable holes (71), the movable frame (73) is inserted into the movable hole (71), a tooth plate (731) is fixed to one end of the movable frame (73) close to the output gear (721), and the tooth plate (731) is meshingly connected with the output gear (721); A transmission shaft (831) is fixed on both sides of the second pulley (83); a telescopic hole (842) is provided inside the third pulley (84); the inner diameter of the telescopic hole (842) matches the outer diameter of the transmission shaft (831); and the third pulley (84) forms a sliding structure outside the transmission shaft (831) through the telescopic hole (842); The deviation correction component comprises a guide hole (63) provided on a side of the flip frame (6) away from the fourth pulley (85), a plurality of the guide holes (63) are arranged at equal intervals on one side of the flip frame (6), a telescopic rod (62) is inserted into the guide hole (63), a movable cavity is provided inside the flip frame (6), a spring (64) is fixed to one end of the telescopic rod (62) close to the fourth pulley (85), and one end of the spring (64) away from the telescopic rod (62) is fixedly connected to the inside of the movable cavity of the flip frame (6); A support block (621) is fixed to one end of the telescopic rod (62) away from the turning frame (6), and a roller (61) is rotatably connected inside the support block (621); A rotating column (611) is fixed to the top of the roller (61), a rotating hole (622) is provided inside the support block (621), the rotating column (611) is rotatably connected inside the rotating hole (622), and a limited rotating disk is fixed to the top of the rotating column (611); A plurality of grooves (612) are formed at equal intervals on the outer side of the rotating column (611); a receiving cavity (623) is formed at one end of the rotating hole (622) close to the bogie (5); a fixing cavity (625) is formed at one end of the storing cavity (623) close to the rotating hole (622); the fixing cavity (625) is connected to the interior of the rotating hole (622); a steel ball (624) is provided inside the storing cavity (623); and a flip plate (627) is rotatably connected inside the fixing cavity (625).

2. A circuit board turning device according to claim 1, characterized in that: The inner diameter of the groove (612) is smaller than the outer diameter of the steel ball (624), and a snap-fit ​​structure is formed between the groove (612) and the steel ball (624).

3. A circuit board turning device according to claim 2, characterized in that: The flip plate (627) is provided with two plate bodies of different lengths, and the length of the plate body close to the fixing cavity (625) is greater than that of the plate body close to the storage cavity (623).

4. A circuit board turning device according to claim 3, characterized in that: A slot (626) is provided above the storage cavity (623), and an anti-slip pad (628) is fixed to the shorter end of the flip plate (627).

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