Turnover assembly for PCB detection

Abstract

The invention discloses an overturning assembly for PCB detection, and relates to the field of PCB detection. The overturning assembly for PCB detection comprises a detection unit and a rotating unit, the detection unit comprises a base, a detection platform and a conveying channel, the detection platform and the conveying channel are fixedly arranged above the base, and the conveying channel is located between the detection platform and the rotating unit. According to the overturning assembly for PCB detection, the positioning mechanisms are used for limiting the two ends of the PCB, the PCB can be limited in cooperation with the multiple positioning wheels, when a driving motor works, a first transmission strip and a second transmission strip can be driven to rotate, and then overturning of the PCB is achieved; after the PCB is overturned, the first transmission shaft and the second transmission shaft are utilized again to transfer the PCB into the conveying channel, and then the PCB enters the detection platform to be detected on the other side, so that a rapid and automatic continuous overturning and detection process can be formed, and the detection efficiency of the PCB is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of PCB board detection, in particular to a flip assembly for PCB board detection. Background Art

[0002] PCB defect detection is mainly used to detect circuit quality problems that occur during the printing process of single-layer PCB boards without green paint. The high-precision, high-resolution, and high-efficiency visual recognition system replaces the high-miss detection and low-efficiency manual quality inspection mode. While ensuring accurate detection of residual copper, micro short circuits, and micro open circuits in screen-printed circuits, it can also avoid false alarms of offset, dislocation, and sawtooth in printed circuits to the greatest extent.

[0003] In order to improve the detection effect of PCB boards, CCD cameras are widely used for photo recognition detection during PCB board detection. However, when the CCD camera is used for detection, even if the CCD camera is driven by a driving device to move in multiple directions, only one side of the PCB board can be detected. In this case, the PCB board needs to be flipped over so that the other side of the PCB board can be detected after flipping.

[0004] The existing flipping components are generally composed of a suction cup, a drive shaft and a motor. When flipping, an external robot is generally required to transport the PCB board to the bottom of the suction cup, and then the PCB board is adsorbed and fixed by the suction cup. At this time, the drive shaft and the motor drive the suction cup and the PCB board to flip. After the flipping is completed, the PCB board needs to be taken out by an external robot again. It is relatively cumbersome and it is difficult to form a fast and automated continuous flipping process. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a flipping assembly for PCB board detection, which solves the problem that the prior flipping assembly is generally composed of a suction cup, a drive shaft and a motor. When flipping, an external manipulator is generally required to transport the PCB board to the bottom of the suction cup, and then the PCB board is adsorbed and fixed by the suction cup. At this time, the driving shaft and the motor drive the suction cup and the PCB board to flip. After the flipping is completed, the PCB board needs to be taken out by an external manipulator again, which makes it difficult to form a fast, automated and continuous flipping process.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A flip assembly for PCB board detection, including a detection unit and a rotation unit, the detection unit includes a base, a detection platform and a conveying channel, the detection platform and the conveying channel are fixedly arranged above the base, and the conveying channel is between the detection platform and the rotation unit;

[0007] The rotating unit includes a first bearing seat and a second bearing seat, the first bearing seat and the second bearing seat are located on the side of the base, a driving motor is fixedly installed on the side of the first bearing seat, and the first bearing seat and the second bearing seat are rotatably connected to the first transmission bar and the second transmission bar through a rotating shaft, a plurality of first transmission shafts and a plurality of second transmission shafts are rotatably arranged between the first transmission bar and the second transmission bar, and a plurality of positioning wheels are fixedly sleeved on the outer sides of the first transmission shaft and the second transmission shaft;

[0008] The first transmission shaft and the second transmission shaft can drive the PCB board on the conveying channel to move between the first transmission bar and the second transmission bar through a plurality of positioning wheels, and the driving motor can drive the rotating shaft to drive the first transmission bar and the second transmission bar to rotate;

[0009] A positioning mechanism is also provided below the plurality of second transmission shafts, and the positioning mechanism positions the PCB board when the first transmission bar and the second transmission bar rotate.

[0010] Preferably, a first moving mechanism is arranged above the base, a horizontal slide rail is arranged above the first moving mechanism, and a first transmission motor is arranged at the end of the horizontal slide rail, a first slider is slidably arranged on the outer side of the horizontal slide rail, the first transmission motor is transmission-connected to the first slider, and a CCD detection camera is fixedly arranged on the outer side of the first slider.

[0011] Preferably, a second moving mechanism is arranged above the base, the outer side of the second moving mechanism is transmission-connected with a moving bar, the outer side of the moving bar is fixedly provided with a mounting bar, and a plurality of lighting fixtures are installed at the bottom of the mounting bar, and the plurality of lighting fixtures are located above the detection platform.

[0012] Preferably, the first moving mechanism comprises:

[0013] Two first movable rails, the two first movable rails are symmetrically fixedly arranged above the base, a first movable motor is arranged at the end of one of the first movable rails, and a first transmission rod is rotatably arranged between the two first movable rails;

[0014] Two first moving blocks are slidably arranged above the first moving rail, and the two first moving blocks are transmission-connected to the first moving motor through the first transmission rod. A positioning frame is also fixedly connected above the first moving block, and the top end of the positioning frame is fixedly arranged at the end of the horizontal slide rail.

[0015] Preferably, the second moving mechanism comprises:

[0016] Two second movable rails, the two second movable rails are symmetrically fixedly arranged above the base, a second movable motor is arranged at the end of one of the second movable rails, and a second transmission rod is rotatably arranged between the two second movable rails;

[0017] Two second moving blocks are slidably arranged above the second moving rail, and the two second moving blocks are transmission-connected to the second moving motor through a second transmission rod, and the two second moving blocks are fixedly connected to the two ends of the moving bar respectively.

[0018] Preferably, the CCD detection camera comprises:

[0019] A vertical slide rail, the vertical slide rail is fixedly connected to the outer side of the first sliding block, a camera mounting seat is slidably arranged on the outer side of the vertical slide rail, and a CCD camera body is fixedly installed on the front side of the camera mounting seat;

[0020] The second transmission motor is fixedly mounted on the top end of the vertical slide rail, and the second transmission motor is transmission-connected to the camera mounting seat.

[0021] Preferably, one end of the first transmission shaft and the second transmission shaft extends toward the inside of the first transmission bar and is fixedly sleeved with a transmission gear, and the transmission gears on the adjacent first transmission shaft and the second transmission shaft are meshed and connected.

[0022] Preferably, the other end of the second transmission shaft extends toward the interior of the second transmission bar and is fixedly sleeved with a driving gear, a linkage rod is rotatably arranged inside the second transmission bar, a plurality of bevel gears are fixedly sleeved on the outer side of the linkage rod, and the plurality of bevel gears are respectively meshed and connected with a plurality of driving gears.

[0023] Preferably, a linkage motor is fixedly arranged above the second transmission bar, and sprockets are fixedly sleeved on the outer side of the linkage motor output end and the outer side of the linkage rod, and the two sprockets are connected by chain transmission.

[0024] Preferably, the positioning mechanism includes a mounting rod and a mounting plate, the mounting rod is fixedly installed between the first transmission bar and the second transmission bar, and the mounting plate is fixedly connected to the bottom of the mounting rod, a lifting cylinder is fixedly provided on the side of the mounting plate, and the top of the lifting cylinder output end is fixedly connected to the positioning plate.

[0025] The present invention discloses a flip assembly for PCB board detection, which has the following beneficial effects:

[0026] 1. The flip assembly for PCB board detection, during use, the PCB board is placed on the detection platform for detection. After the single-side detection is completed, the PCB board is conveyed between the first transmission shaft and the second transmission shaft by using the conveying channel until the multiple positioning wheels outside the first transmission shaft and the second transmission shaft are in contact with the two sides of the PCB board. At this time, when the first transmission shaft and the second transmission shaft rotate relative to each other, the PCB board is transferred between the first transmission bar and the second transmission bar. At this time, the positioning mechanism is used to limit the two ends of the PCB board, and the multiple positioning wheels can be used to limit the PCB board. When the driving motor is working, it can drive the first transmission bar and the second transmission bar to rotate, thereby realizing the flipping of the PCB board. After flipping, the first transmission shaft and the second transmission shaft can be used again to transfer the PCB board to the conveying channel, and then enter the detection platform for detection on the other side, which can form a fast and automated continuous flipping and detection process, greatly improving the detection efficiency of the PCB board.

[0027] 2. The flip assembly for PCB board detection, when the linkage motor is working, the sprocket on the outside of its output end drives another sprocket to rotate through the chain, so that the linkage rod can rotate, when the linkage rod rotates, multiple bevel gears on its outside rotate accordingly, and the multiple bevel gears are respectively meshed and connected with multiple driving gears, so that multiple second transmission shafts rotate at the same time, and the first transmission shaft and the second transmission shaft can rotate relatively through the multiple transmission gears, and the lifting cylinder is set, when the lifting cylinder is working, its output end can drive the positioning plate to move accordingly, when the positioning plate moves upward, the PCB board can be limited, and when the positioning plate moves downward, it is convenient for the PCB board to be loaded and unloaded between the first transmission shaft and the second transmission shaft.

[0028] 3. The flip assembly for PCB board detection has a first screw rod that is rotated inside the horizontal slide rail, and the first screw rod is connected to the first transmission motor in a transmission manner, and the first slider is threadedly connected to the first screw rod. When the first transmission motor is working, it can drive the first slider to slide, thereby realizing the position adjustment of the CCD detection camera, and thus facilitating detection by the CCD detection camera; the second moving mechanism can drive the moving bar to move above the detection platform, so that multiple lighting fixtures can illuminate the detection part on the PCB board from the side of the CCD detection camera, so that the CCD detection camera can be clearer and more accurate when performing detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the detection unit of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the first moving mechanism of the present invention;

[0033] Figure 4 It is a structural schematic diagram of the second moving mechanism and the detection platform of the present invention;

[0034] Figure 5 It is a structural schematic diagram of the horizontal slide rail and the CCD detection camera of the present invention;

[0035] Figure 6 It is a structural schematic diagram of the rotating unit of the present invention;

[0036] Figure 7 It is a partial structural schematic diagram of the rotating unit of the present invention;

[0037] Figure 8 Schematic diagram of the internal structure of the second transmission bar of the present invention

[0038] Fig. 9 It is a structural schematic diagram of the positioning mechanism of the present invention.

[0039] In the figure: 1, detection unit; 11, base; 12, detection platform; 121, conveying channel; 13, first moving mechanism; 131, first moving rail; 132, first moving motor; 133, first transmission rod; 134, first moving block; 135, positioning frame; 14, horizontal slide rail; 141, first transmission motor; 142, first slider; 15, second moving mechanism; 151, second moving rail; 152, second transmission rod; 153, second moving motor; 154, second moving block; 16, moving bar; 161, lighting fixture; 17, CCD detection camera; 1 71. Vertical slide rail; 172. Camera mounting seat; 173. Second transmission motor; 174. CCD camera body; 2. Rotation unit; 21. First bearing seat; 22. Second bearing seat; 23. Drive motor; 24. First transmission bar; 25. Second transmission bar; 251. Linkage motor; 252. Linkage rod; 253. Bevel gear; 254. Drive gear; 255. Sprocket; 26. First transmission shaft; 27. Second transmission shaft; 28. Positioning wheel; 29. ​​Positioning mechanism; 291. Mounting rod; 292. Mounting plate; 293. Lifting cylinder; 294. Positioning plate. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0041] The embodiment of the present application provides a flip assembly for PCB board detection, which solves the problem that the existing flip assembly is generally composed of a suction cup, a drive shaft and a motor. When flipping, an external manipulator is generally required to transport the PCB board to the bottom of the suction cup, and then the PCB board is adsorbed and fixed by the suction cup. At this time, the suction cup and the PCB board are driven by the drive shaft and the motor to flip. After the flip is completed, the PCB board needs to be taken out by the external manipulator again, which makes it difficult to form a fast and automated continuous flip process. The positioning mechanism 29 is used to limit the two ends of the PCB board, and the PCB board can be limited by a plurality of positioning wheels 28. When the driving motor 23 is working, it can drive the first transmission bar 24 and the second transmission bar 25 to rotate, thereby realizing the flipping of the PCB board. After flipping, the first transmission shaft 26 and the second transmission shaft 27 can be used again to transfer the PCB board to the conveying channel 121, and then enter the detection platform 12 for detection on the other side, which can form a fast and automated continuous flip and detection process, greatly improving the detection efficiency of the PCB board.

[0042] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] The embodiment of the invention discloses a flip assembly for detecting a PCB board.

[0044] According to the attached Figure 1-9 As shown, it includes a detection unit 1 and a rotating unit 2, the detection unit 1 includes a base 11, a detection platform 12 and a conveying channel 121, the detection platform 12 and the conveying channel 121 are fixedly arranged above the base 11, and the conveying channel 121 is between the detection platform 12 and the rotating unit 2;

[0045] The rotating unit 2 includes a first bearing seat 21 and a second bearing seat 22, the first bearing seat 21 and the second bearing seat 22 are located on the side of the base 11, a driving motor 23 is fixedly installed on the side of the first bearing seat 21, and the first bearing seat 21 and the second bearing seat 22 are respectively rotatably connected with a first transmission bar 24 and a second transmission bar 25 through a rotating shaft, a plurality of first transmission shafts 26 and a plurality of second transmission shafts 27 are rotatably arranged between the first transmission bar 24 and the second transmission bar 25, and a plurality of positioning wheels 28 are fixedly sleeved on the outer sides of the first transmission shaft 26 and the second transmission shaft 27;

[0046] The first transmission shaft 26 and the second transmission shaft 27 can drive the PCB board on the conveying channel 121 to move between the first transmission bar 24 and the second transmission bar 25 through a plurality of positioning wheels 28, and the driving motor 23 can drive the rotating shaft to drive the first transmission bar 24 and the second transmission bar 25 to rotate;

[0047] A positioning mechanism 29 is further provided below the plurality of second transmission shafts 27 , and the positioning mechanism 29 positions the PCB board when the first transmission bar 24 and the second transmission bar 25 rotate.

[0048] During use, the PCB board is placed on the detection platform 12 for detection. After the single-side detection is completed, the PCB board is conveyed between the first transmission shaft 26 and the second transmission shaft 27 by using the conveying channel 121 until the multiple positioning wheels 28 outside the first transmission shaft 26 and the second transmission shaft 27 are in contact with the two sides of the PCB board. At this time, when the first transmission shaft 26 and the second transmission shaft 27 rotate relative to each other, the PCB board is transferred to between the first transmission bar 24 and the second transmission bar 25. At this time, the positioning mechanism 29 is used to limit the two ends of the PCB board, and the multiple positioning wheels 28 can be used to limit the PCB board. When the driving motor 23 is working, it can drive the first transmission bar 24 and the second transmission bar 25 to rotate, thereby realizing the flipping of the PCB board. After flipping, the first transmission shaft 26 and the second transmission shaft 27 can be used again to transfer the PCB board to the conveying channel 121, and then enter the detection platform 12 for detection on the other side, which can form a fast and automated continuous flipping and detection process, thereby greatly improving the detection efficiency of the PCB board.

[0049] Furthermore, a first moving mechanism 13 is arranged above the base 11, a horizontal slide rail 14 is arranged above the first moving mechanism 13, and a first transmission motor 141 is arranged at the end of the horizontal slide rail 14, a first slider 142 is slidably arranged on the outer side of the horizontal slide rail 14, the first transmission motor 141 and the first slider 142 are transmission-connected, and a CCD detection camera 17 is fixedly arranged on the outer side of the first slider 142.

[0050] A first screw rod is arranged for internal rotation of the horizontal slide rail 14, and the first screw rod is connected to the first transmission motor 141 for transmission, and the first slider 142 is threadedly connected to the first screw rod. When the first transmission motor 141 is working, the first slider 142 can be driven to slide, thereby realizing the position adjustment of the CCD detection camera 17, and facilitating detection by the CCD detection camera 17.

[0051] Furthermore, a second moving mechanism 15 is arranged above the base 11, and the outer side of the second moving mechanism 15 is transmission-connected with a moving bar 16, the outer side of the moving bar 16 is fixedly provided with a mounting bar, and a plurality of lighting fixtures 161 are installed at the bottom of the mounting bar, and the plurality of lighting fixtures 161 are located above the detection platform 12.

[0052] The second moving mechanism 15 can drive the moving bar 16 to move above the detection platform 12, so that the multiple lighting fixtures 161 can illuminate the detection area on the PCB board from the side of the CCD detection camera 17, making the CCD detection camera 17 clearer and more accurate during detection.

[0053] Specifically disclosed, the first moving mechanism 13 comprises:

[0054] Two first movable rails 131, the two first movable rails 131 are symmetrically fixedly arranged above the base 11, a first movable motor 132 is arranged at the end of one of the first movable rails 131, and a first transmission rod 133 is rotatably arranged between the two first movable rails 131;

[0055] Two first moving blocks 134 are slidably arranged above the first moving rail 131, and the two first moving blocks 134 are transmission-connected to the first moving motor 132 through the first transmission rod 133. A positioning frame 135 is also fixedly connected above the first moving block 134, and the top end of the positioning frame 135 is fixedly arranged at the end of the horizontal slide rail 14.

[0056] The two first movable rails 131 are both internally provided with a first screw for rotation. The ends of the two first screws are connected to the first transmission rod 133 through bevel gears, so that the two first screws can rotate at the same time. The first screw is threadedly connected to the first movable block 134. When the first movable motor 132 drives the first screw to rotate, it can drive the two first movable blocks 134 to slide on the two first movable rails 131 respectively.

[0057] Particularly disclosed, the second moving mechanism 15 comprises:

[0058] Two second movable rails 151, the two second movable rails 151 are symmetrically fixedly arranged above the base 11, a second movable motor 153 is arranged at the end of one of the second movable rails 151, and a second transmission rod 152 is rotatably arranged between the two second movable rails 151;

[0059] The two second moving blocks 154 are slidably arranged above the second moving rail 151 , and the two second moving blocks 154 are transmission-connected to the second moving motor 153 via the second transmission rod 152 , and the two second moving blocks 154 are fixedly connected to the two ends of the moving bar 16 .

[0060] The connection method of the second moving rail 151, the second moving motor 153, the second transmission rod 152 and the second moving block 154 can refer to the above-mentioned first moving mechanism 13. When the second moving motor 153 is working, it can drive the second moving block 154 to slide on the second moving rail 151.

[0061] Specifically disclosed, the CCD detection camera 17 includes:

[0062] A vertical slide rail 171, the vertical slide rail 171 is fixedly connected to the outer side of the first sliding block 142, a camera mounting seat 172 is slidably provided on the outer side of the vertical slide rail 171, and a CCD camera body 174 is fixedly installed on the front side of the camera mounting seat 172;

[0063] The second transmission motor 173 is fixedly mounted on the top of the vertical slide rail 171 , and the second transmission motor 173 is transmission-connected to the camera mounting seat 172 .

[0064] A second screw rod is arranged inside the vertical slide rail 171, and the second screw rod is fixedly connected to the output end of the second transmission motor 173, and the camera mounting seat 172 is threadedly connected to the second screw rod. When the second transmission motor 173 is working, it can drive the camera mounting seat 172 and the CCD camera body 174 to move vertically, thereby making it more convenient for the CCD camera body 174 to detect the PCB board on the detection platform 12.

[0065] Furthermore, one end of the first transmission shaft 26 and the second transmission shaft 27 extends toward the inside of the first transmission bar 24 and is fixedly sleeved with a transmission gear, and the transmission gears on the adjacent first transmission shaft 26 and the second transmission shaft 27 are meshed and connected.

[0066] The first transmission shaft 26 and the second transmission shaft 27 can rotate relative to each other by providing a plurality of transmission gears.

[0067] Furthermore, the other end of the second transmission shaft 27 extends toward the interior of the second transmission bar 25 and is fixedly sleeved with a driving gear 254. A linkage rod 252 is rotatably arranged inside the second transmission bar 25. A plurality of bevel gears 253 are fixedly sleeved on the outer side of the linkage rod 252, and the plurality of bevel gears 253 are respectively meshed and connected with a plurality of driving gears 254.

[0068] When the linkage rod 252 rotates, the multiple bevel gears 253 on the outer side thereof rotate accordingly, and the multiple bevel gears 253 are respectively meshed and connected with the multiple driving gears 254, so that the multiple second transmission shafts 27 rotate simultaneously.

[0069] Furthermore, a linkage motor 251 is fixedly provided above the second transmission bar 25 , and sprockets 255 are fixedly sleeved on the outer side of the output end of the linkage motor 251 and the outer side of the linkage rod 252 , and the two sprockets 255 are connected by chain transmission.

[0070] When the linkage motor 251 is working, the sprocket 255 on the outer side of the output end drives another sprocket 255 to rotate through the chain, thereby enabling the linkage rod 252 to rotate.

[0071] Specifically disclosed, the positioning mechanism 29 includes a mounting rod 291 and a mounting plate 292, the mounting rod 291 is fixedly mounted between the first transmission bar 24 and the second transmission bar 25, and the mounting plate 292 is fixedly connected to the bottom of the mounting rod 291, a lifting cylinder 293 is fixedly arranged on the side of the mounting plate 292, and a positioning plate 294 is fixedly connected to the top of the output end of the lifting cylinder 293.

[0072] By setting up the lifting cylinder 293, when the lifting cylinder 293 is working, its output end can drive the positioning plate 294 to move accordingly. When the positioning plate 294 moves upward, the PCB board can be limited. When the positioning plate 294 moves downward, it is convenient for the PCB board to be loaded and unloaded between the first transmission shaft 26 and the second transmission shaft 27.

[0073] When the linkage motor 251 is working, the sprocket 255 on the outside of its output end drives another sprocket 255 to rotate through the chain, so that the linkage rod 252 can rotate. When the linkage rod 252 rotates, the multiple bevel gears 253 on the outside thereof rotate accordingly, and the multiple bevel gears 253 are respectively meshed and connected with the multiple driving gears 254, so that the multiple second transmission shafts 27 rotate at the same time. By setting the multiple transmission gears, the first transmission shaft 26 and the second transmission shaft 27 can rotate relative to each other.

[0074] The above shows and describes the basic principles and main features of the present invention and the 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 to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A flip assembly for PCB board detection, comprising a detection unit (1) and a rotation unit (2), characterized in that: The detection unit (1) comprises a base (11), a detection platform (12) and a conveying channel (121); the detection platform (12) and the conveying channel (121) are fixedly arranged above the base (11), and the conveying channel (121) is located between the detection platform (12) and the rotating unit (2); The rotating unit (2) comprises a first bearing seat (21) and a second bearing seat (22), the first bearing seat (21) and the second bearing seat (22) are located on the side of the base (11), a driving motor (23) is fixedly installed on the side of the first bearing seat (21), and the first bearing seat (21) and the second bearing seat (22) are respectively rotatably connected to a first transmission bar (24) and a second transmission bar (25) through a rotating shaft, a plurality of first transmission shafts (26) and a plurality of second transmission shafts (27) are rotatably arranged between the first transmission bar (24) and the second transmission bar (25), and a plurality of positioning wheels (28) are fixedly sleeved on the outer sides of the first transmission shaft (26) and the second transmission shaft (27); The first transmission shaft (26) and the second transmission shaft (27) can drive the PCB board on the conveying channel (121) to move between the first transmission bar (24) and the second transmission bar (25) through a plurality of positioning wheels (28), and the driving motor (23) can drive the rotating shaft to drive the first transmission bar (24) and the second transmission bar (25) to rotate; A positioning mechanism (29) is also provided below the plurality of second transmission shafts (27), and the positioning mechanism (29) positions the PCB board when the first transmission bar (24) and the second transmission bar (25) rotate.

2. A flip assembly for PCB board detection according to claim 1, characterized in that: A first moving mechanism (13) is arranged above the base (11), a horizontal slide rail (14) is arranged above the first moving mechanism (13), a first transmission motor (141) is arranged at the end of the horizontal slide rail (14), a first slider (142) is slidably arranged on the outer side of the horizontal slide rail (14), the first transmission motor (141) and the first slider (142) are transmission-connected, and a CCD detection camera (17) is fixedly arranged on the outer side of the first slider (142).

3. The flip assembly for PCB board detection according to claim 1, characterized in that: A second moving mechanism (15) is arranged above the base (11); a moving bar (16) is transmission-connected to the outer side of the second moving mechanism (15); a mounting bar is fixedly arranged on the outer side of the moving bar (16); and a plurality of lighting fixtures (161) are installed at the bottom of the mounting bar; the plurality of lighting fixtures (161) are located above the detection platform (12).

4. The flip assembly for PCB board detection according to claim 2 is characterized in that: The first moving mechanism (13) comprises: Two first movable rails (131), the two first movable rails (131) are symmetrically fixedly arranged above the base (11), a first movable motor (132) is arranged at the end of one of the first movable rails (131), and a first transmission rod (133) is rotatably arranged between the two first movable rails (131); Two first moving blocks (134) are slidably arranged above the first moving rail (131), and the two first moving blocks (134) are transmission-connected to the first moving motor (132) via a first transmission rod (133); a positioning frame (135) is also fixedly connected above the first moving blocks (134), and the top end of the positioning frame (135) is fixedly arranged at the end of the horizontal slide rail (14).

5. The flip assembly for PCB board detection according to claim 3 is characterized in that: The second moving mechanism (15) comprises: Two second movable rails (151), the two second movable rails (151) are symmetrically fixedly arranged above the base (11), a second movable motor (153) is arranged at the end of one of the second movable rails (151), and a second transmission rod (152) is rotatably arranged between the two second movable rails (151); Two second moving blocks (154), the second moving blocks (154) are slidably arranged above the second moving rail (151), and the two second moving blocks (154) are transmission-connected to the second moving motor (153) via a second transmission rod (152), and the two second moving blocks (154) are respectively fixedly connected to the two ends of the moving bar (16).

6. The flip assembly for PCB board detection according to claim 1, characterized in that: The CCD detection camera (17) comprises: A vertical slide rail (171), the vertical slide rail (171) is fixedly connected to the outer side of the first sliding block (142), a camera mounting seat (172) is slidably arranged on the outer side of the vertical slide rail (171), and a CCD camera body (174) is fixedly installed on the front side of the camera mounting seat (172); The second transmission motor (173) is fixedly mounted on the top end of the vertical slide rail (171), and the second transmission motor (173) is transmission-connected to the camera mounting seat (172).

7. The flip assembly for PCB board detection according to claim 1, characterized in that: One end of the first transmission shaft (26) and the second transmission shaft (27) extends toward the inside of the first transmission bar (24) and is fixedly sleeved with a transmission gear, and the transmission gears on the adjacent first transmission shaft (26) and second transmission shaft (27) are meshed and connected.

8. The flip assembly for PCB board detection according to claim 1, characterized in that: The other end of the second transmission shaft (27) extends toward the inside of the second transmission bar (25) and is fixedly sleeved with a driving gear (254); a linkage rod (252) is rotatably arranged inside the second transmission bar (25); a plurality of bevel gears (253) are fixedly sleeved on the outside of the linkage rod (252); and the plurality of bevel gears (253) are respectively meshed and connected with a plurality of driving gears (254).

9. The flip assembly for PCB board detection according to claim 8, characterized in that: A linkage motor (251) is fixedly arranged above the second transmission bar (25), and sprockets (255) are fixedly sleeved on the outer side of the output end of the linkage motor (251) and the outer side of the linkage rod (252), and the two sprockets (255) are connected via a chain transmission.

10. The flip assembly for PCB board detection according to claim 8, characterized in that: The positioning mechanism (29) comprises a mounting rod (291) and a mounting plate (292); the mounting rod (291) is fixedly mounted between the first transmission bar (24) and the second transmission bar (25); the mounting plate (292) is fixedly connected below the mounting rod (291); a lifting cylinder (293) is fixedly arranged on the side of the mounting plate (292); and a positioning plate (294) is fixedly connected to the top end of the output end of the lifting cylinder (293).

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