A circuit board detection device and method

Abstract

The present invention discloses a circuit board detection device and method, specifically relating to the technical field of circuit board detection. It includes a base, in the middle of the top of the base, a feeding device is fixedly installed. There are two symmetrically distributed feeding devices. Between the two feeding devices, there is a first transmission device. On the side of the base top far from the first transmission device, an inspection device is fixedly provided. On the side of the base top close to the inspection device, a second transmission device is fixedly installed; the feeding device includes two symmetrically distributed first longitudinal frames. In the present invention, by setting the feeding device and cooperating with the first transmission device, the circuit boards to be detected are automatically transported into the feeding device, multiple circuit boards are automatically fed and the multiple circuit boards are controlled to move upward, which is convenient for subsequently synchronously moving the multiple circuit boards into the inspection device for automatic detection of electrical variables and magnetic variables of multi-channel circuit boards, effectively improving the overall detection efficiency of the circuit boards.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board detection, and specifically provides a circuit board detection device and method. Background Art

[0002] A circuit board is a substrate for supporting and connecting electronic components. The main functions of a circuit board are to provide electrical connection paths for electronic components and to fix and support these components. When a circuit board is being produced and processed, it needs to be detected to ensure the quality and reliability of electronic products. The detection mainly includes appearance detection, electrical performance detection, and welding quality detection.

[0003] For the detection of electrical variables and magnetic variables of traditional circuit boards, mostly an operator holds the circuit board by hand and places it at the detection station, uses a dedicated instrument to connect to the pin positions of the circuit board, and conducts the detection of electrical variables and magnetic variables of the circuit board. After the detection is completed, the circuit board is removed from the detection station to conduct the detection of the next circuit board. Manual detection has relatively low efficiency and is prone to damage the circuit board. Therefore, we propose a circuit board detection device and method to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a circuit board detection device and method to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A circuit board detection device includes a base. In the middle of the top end of the base, a feeding device is fixedly installed. There are two symmetrically distributed feeding devices. A first transmission device is arranged between the two feeding devices. On the side of the top end of the base far from the first transmission device, an inspection and transmission device is fixedly provided. On the side of the top end of the base close to the inspection and transmission device, a second transmission device is fixedly installed.

[0006] The feeding device includes two symmetrically distributed first longitudinal frames. The first longitudinal frames are fixedly installed on the top end of the base. The top and bottom of the first longitudinal frames are both rotatably installed with feeding rotating shafts. At the bottom end of each first longitudinal frame, a first motor is fixedly installed. The driving end of the first motor is fixedly installed with one end of the feeding rotating shaft. Feeding sprockets are fixedly installed at both ends of the feeding rotating shaft. A feeding chain is meshed and connected to the outside of the feeding sprockets at the same end position on the feeding rotating shaft. A plurality of evenly distributed material conveying members are fixedly installed on the two feeding chains.

[0007] The material conveying members at the same horizontal position in the two feeding devices form a transportation channel.

[0008] As a preferred technical solution of the present invention, the material conveying member includes a first cross frame, both end portions of the first cross frame are fixedly installed with corresponding feeding chains respectively, a plurality of uniformly distributed material conveying wheels are rotatably installed on the first cross frame, a first gear is fixedly installed at the shaft end of the material conveying wheel, and the rotation direction of the material conveying wheel is perpendicular to the rotation direction of the feeding rotating shaft.

[0009] As a preferred technical solution of the present invention, an auxiliary inner frame is fixedly installed between the two first longitudinal frames. A plurality of groups of driving groups corresponding to the transportation channels are provided on the auxiliary inner frame. The driving group includes a plurality of driving shafts corresponding to the material conveying wheels. The driving shafts are rotatably installed on the auxiliary inner frame. A second gear is fixedly installed at one end of the driving shaft. The second gear is meshed and connected with the corresponding first gear. A first sprocket transmission group is provided on the side of the driving group away from the second gear. The first sprocket transmission group includes a plurality of first sprockets corresponding to the driving shafts and a first chain meshed outside the plurality of first sprockets. The first sprockets are respectively fixedly installed at the end portions of the corresponding driving shafts. A second sprocket transmission group is provided on the side of the plurality of driving groups away from the second gear. The second sprocket transmission group includes a plurality of second sprockets corresponding to the driving groups and a second chain meshed outside the plurality of second sprockets. The second sprockets are respectively fixedly installed at the end portions of the driving shafts in the corresponding driving groups.

[0010] As a preferred technical solution of the present invention, a second motor is fixedly installed in the middle of one side of the auxiliary inner frame, and the driving end of the second motor is fixedly installed with the end portion of one of the driving shafts.

[0011] As a preferred technical solution of the present invention, the inspection and conveying device includes a plurality of second longitudinal frames. The second longitudinal frames are fixedly installed at the top of the base. A plurality of inspection and conveying mechanisms corresponding to the transportation channels are fixedly installed at the top of the second longitudinal frames. The plurality of inspection and conveying mechanisms are stacked and installed. The inspection and conveying mechanism includes two symmetrically distributed inspection and conveying side frames. The inspection and conveying mechanism is fixedly installed at the top of the second longitudinal frame through the inspection and conveying side frames. Detection devices for automatically detecting the electrical variables and magnetic variables of the circuit board are fixedly installed at the top of the two inspection and conveying side frames. A plurality of transmission rollers are rotatably installed at the bottom of the two inspection and conveying side frames. A plurality of transfer members are rotatably installed at the middle position of the bottom of the two inspection and conveying side frames. The rotation directions of the transmission rollers and the transfer members are the same as the rotation direction of the material conveying wheel. A discharge groove is formed on the inspection and conveying side frame near the position of the second conveying device.

[0012] As a preferred technical solution of the present invention, the transfer member includes a transmission rotating cylinder, the transmission rotating cylinder is rotatably installed at the bottom of the inspection side frame, a plurality of transfer groups are evenly distributed in the transmission rotating cylinder, the transfer group includes a plurality of rotating seats distributed in an annular array, the rotating seats are fixedly installed on the inner wall of the transmission rotating cylinder, a transfer wheel is rotatably installed on each rotating seat, the rotation direction of the transfer wheel is perpendicular to the rotation direction of the transmission roller, the outer part of the transfer wheel extends out of the outer side of the transmission rotating cylinder, a third gear is fixedly installed at the shaft end of the transfer wheel, a driving rack is meshed with the outside of the third gears at the same position in a plurality of the transfer groups, a connection disk is fixedly installed between a plurality of the driving racks, a translation driving rod is fixedly installed in the middle of two connection disks, the translation driving rod is movably clamped in the middle of the transmission rotating cylinder, a connection frame is arranged at the outer bottom of the inspection side frame, a connection bearing is fixedly clamped on the connection frame, one end of the translation driving rod extends out of the shaft end of the transmission rotating cylinder and is fixedly clamped in the middle of the corresponding connection bearing, an L-shaped frame is fixedly installed on one side of the outer wall of the inspection side frame close to the connection frame, an electric telescopic rod is fixedly installed on the L-shaped frame, and the driving end of the electric telescopic rod is fixedly installed with the connection frame.

[0013] As a preferred technical solution of the present invention, third sprocket transmission groups are arranged at the shaft ends of a plurality of the transmission rollers and the transmission rotating cylinder, the third sprocket transmission groups include a plurality of third sprockets corresponding to the transmission rollers and the transmission rotating cylinder and a third chain meshed with the outside of the plurality of third sprockets, the third sprockets are respectively fixedly installed at the shaft ends of the corresponding transmission rollers and the transmission rotating cylinder, a third motor is fixedly installed on the outside of the inspection side frame, and the driving end of the third motor is fixedly installed with the shaft end of one of the transmission rollers.

[0014] As a preferred technical solution of the present invention, the first transmission device includes two groups of transmission side frames symmetrically distributed, the transmission side frames are fixedly installed at the top of the base, a transmission shaft rod is rotatably installed at the top of each group of the transmission side frames, the rotation direction of the transmission shaft rod is the same as the rotation direction of the material conveying wheel, transmission wheels are fixedly installed at both ends of the transmission shaft rod, a transmission belt is movably sleeved on the outside of the corresponding two transmission wheels on the same side, a fourth motor is fixedly installed at the top of one of the transmission side frames, and the driving end of the fourth motor is fixedly installed with the end of one of the transmission shaft rods.

[0015] As a preferred technical solution of the present invention, the second transmission device includes a plurality of third longitudinal frames fixedly installed at the top of the base. At the top of the third longitudinal frame, a plurality of second transmission members corresponding to the inspection mechanism are fixedly installed. One end of the second transmission member corresponds to the position of the discharge chute in the inspection mechanism. The plurality of second transmission members are stacked and installed. The structure of the second transmission member is the same as that of the first transmission device. The rotation direction of the transmission shaft rod in the second transmission member is perpendicular to the rotation direction of the material transfer wheel.

[0016] A method for using a circuit board detection device includes the following steps:

[0017] Step 1: Synchronously control the first motors on both sides of the feeding devices to start, drive the feeding rotating shafts on both sides of the feeding devices to rotate synchronously in opposite directions, thereby controlling the feeding sprockets to drive the feeding chains on both sides of the feeding devices to transmit synchronously in opposite directions, and then sequentially drive the corresponding feeding members on both sides to move up synchronously. During the synchronous upward movement of the feeding members, when the transportation channel corresponds to the inspection mechanism, the second gear meshes with the corresponding first gear.

[0018] Step 2: By controlling the fourth motor to start, drive one of the transmission shaft rods and the transmission wheels to rotate, thereby controlling the synchronous transmission of the transmission belts on both sides. Place the circuit boards to be detected on the transmission belts on both sides. Through the synchronous transmission of the transmission belts on both sides, control the circuit boards to move towards the feeding device position, and sequentially move multiple circuit boards to be detected onto the multiple material transfer wheels in each corresponding group of feeding members for automatic feeding of the circuit boards to be detected, and control the circuit boards to be detected to move upward through the synchronous upward movement of the feeding members.

[0019] When multiple circuit boards to be detected are transported upward to a suitable position, control the second motor to start and drive one of the drive shafts to rotate. With the transmission of the second sprocket drive group and the first sprocket drive group, synchronously drive multiple drive shafts to rotate, thereby driving the corresponding multiple first gears to rotate synchronously through the second gear, and then controlling the multiple material transfer wheels at the positions of multiple transportation channels to rotate synchronously, and then driving the circuit boards at the positions of multiple transportation channels to be automatically transported to the multiple transmission rollers in the corresponding position inspection device.

[0020] At the same time, control the third motor to start. With the transmission of the third sprocket drive group, control the multiple transmission rollers and the transmission rotating cylinders to rotate synchronously, thereby automatically transporting the circuit boards in the inspection device. The circuit boards are transported to the multiple transfer wheels on the multiple transfer members and correspond to the position of the discharge chute.

[0021] Step 3: Automatically detect the electrical variables and magnetic variables of the circuit boards in multiple transportation channels through multiple detection devices.

[0022] When the circuit board fails the inspection, control the electric telescopic rod at the corresponding transfer part position to extend and retract, drive the connection frame to drive a plurality of translation drive rods, connection disks and a plurality of drive racks to perform translational sliding, so as to drive a plurality of transfer wheels to move to one side of the second transmission device, and automatically transfer the unqualified circuit boards on the plurality of transfer wheels to the conveyor belt in the second transmission device through the discharge chute for automatic transmission, so as to facilitate the subsequent inspection of the unqualified circuit boards;

[0023] When the circuit board passes the inspection, continue to transfer the circuit board in the inspection device, and automatically send out the qualified circuit board after the inspection from the inspection device for subsequent processing of the circuit board, so as to realize the automatic classification and transmission of qualified and unqualified products after the circuit board inspection.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. By setting up a feeding device and cooperating with the first transmission device, the circuit boards to be inspected are automatically transferred to the feeding device, and multiple circuit boards are automatically fed and controlled to move upward, which is convenient for subsequently synchronously moving multiple circuit boards into the inspection device for automatic detection of electrical variables and magnetic variables of multi-channel circuit boards, effectively improving the overall inspection efficiency of the circuit boards.

[0026] 2. By setting up an inspection device and cooperating with the second transmission device, it is convenient to automatically transfer the circuit boards in the inspection device, so as to realize the automatic classification and transmission of qualified and unqualified products after the circuit board inspection, so as to facilitate the subsequent inspection of unqualified circuit boards and the subsequent processing of qualified circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic structural diagram of the present invention.

[0029] Figure 2 It is a schematic structural diagram of the feeding device in the present invention.

[0030] Figure 3 For the present invention Figure 2 The enlarged view of part A.

[0031] Figure 4 It is a partial structural connection diagram of the feeding device in the present invention.

[0032] Figure 5 For the present invention Figure 4 An enlarged view of part B in the present invention.

[0033] Figure 6 Schematic structural connection diagram of the input inspection device and the second transmission device in the present invention.

[0034] Figure 7 Schematic structural connection diagram of the input inspection mechanism and the second transmission part in the present invention.

[0035] Figure 8 For the present invention Figure 7 An enlarged view of part C in the present invention.

[0036] Figure 9 Schematic structural connection diagram of the transfer part in the present invention.

[0037] Figure 10 For the present invention Figure 9 An enlarged view of part D in the present invention.

[0038] Figure 11 Schematic structural diagram of the first transmission device in the present invention.

[0039] In the figure: 1, base; 2, feeding device; 3, first transmission device; 4, input inspection device; 5, second transmission device; 21, first longitudinal frame; 22, feeding rotating shaft; 221, feeding sprocket; 222, feeding chain; 223, first motor; 23, material transfer part; 231, first transverse frame; 232, material transfer wheel; 233, first gear; 24, auxiliary inner frame; 241, driving shaft; 242, second gear; 243, first sprocket transmission group; 244, second sprocket transmission group; 245, second motor; 41, second longitudinal frame; 42, input inspection mechanism; 43, input inspection side frame; 431, detection equipment; 432, discharge chute; 44, transmission roller; 441, third sprocket transmission group; 442, third motor; 45, transfer part; 46, connection frame; 461, connection bearing; 462, L-shaped frame; 463, electric telescopic rod; 451, transmission rotating cylinder; 452, rotating seat; 453, transfer wheel; 454, third gear; 455, driving rack; 456, connection disk; 457, translation driving rod; 31, transmission side frame; 32, transmission shaft rod; 33, transmission wheel; 34, transmission belt; 35, fourth motor; 51, third longitudinal frame; 52, second transmission part. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] Embodiment: As Figures 1-11 shown, the present invention provides a circuit board detection device, including a base 1. In the middle of the top end of the base 1, a feeding device 2 is fixedly installed. There are two symmetrically distributed feeding devices 2. A first transmission device 3 is arranged between the two feeding devices 2. On one side of the top end of the base 1 far from the first transmission device 3, an inspection device 4 is fixedly arranged. On one side of the top end of the base 1 close to the inspection device 4, a second transmission device 5 is fixedly installed;

[0042] The feeding device 2 includes two symmetrically distributed first longitudinal frames 21. The first longitudinal frames 21 are fixedly installed at the top end of the base 1. Feeding rotating shafts 22 are rotatably installed at the top and bottom of the first longitudinal frames 21. At the bottom ends of the first longitudinal frames 21, first motors 223 are fixedly installed. The driving ends of the first motors 223 and one ends of the feeding rotating shafts 22 are fixedly installed. Feeding sprockets 221 are fixedly installed at both ends of the feeding rotating shafts 22. Feeding chains 222 are meshed and connected to the outside of the feeding sprockets 221 at the same end positions on the feeding rotating shafts 22. A plurality of evenly distributed material conveying members 23 are fixedly installed on the two feeding chains 222; The material conveying members 23 at the same horizontal position in the two feeding devices 2 form a transportation channel. By synchronously controlling the opening of the first motors 223 in the two feeding devices 2 on both sides, the feeding rotating shafts 22 in the two feeding devices 2 on both sides are driven to rotate synchronously and reversely, so as to control the feeding sprockets 221 to drive the feeding chains 222 in the two feeding devices 2 on both sides to perform synchronous reverse transmission, and then drive the corresponding material conveying members 23 on both sides to move up synchronously in sequence, facilitating the upward transmission of the circuit boards transmitted to the corresponding material conveying members 23 on both sides.

[0043] The material conveying member 23 includes a first cross frame 231. The two ends of the first cross frame 231 are respectively fixedly installed with the corresponding feeding chains 222. A plurality of evenly distributed material conveying wheels 232 are rotatably installed on the first cross frame 231. First gears 233 are fixedly installed at the shaft ends of the material conveying wheels 232. The rotating direction of the material conveying wheels 232 is perpendicular to the rotating direction of the feeding rotating shaft 22. The circuit boards are automatically transmitted to the plurality of material conveying wheels 232 in the corresponding material conveying members 23 on both sides;

[0044] An auxiliary inner frame 24 is fixedly installed between two first longitudinal frames 21. A plurality of drive groups corresponding to the transportation channels are provided on the auxiliary inner frame 24. The drive group includes a plurality of drive shafts 241 corresponding to the material transfer wheels 232. The drive shafts 241 are rotatably installed on the auxiliary inner frame 24. One end of the drive shaft 241 is fixedly installed with a second gear 242. The second gear 242 is meshed and connected with the corresponding first gear 233. A first sprocket drive group 243 is provided on the side of the drive group away from the second gear 242. The first sprocket drive group 243 includes a plurality of first sprockets corresponding to the drive shafts 241 and a first chain meshed on the outside of the plurality of first sprockets. The first sprockets are respectively fixedly installed at the ends of the corresponding drive shafts 241. A second sprocket drive group 244 is provided on the side of the plurality of drive groups away from the second gear 242. The second sprocket drive group 244 includes a plurality of second sprockets corresponding to the drive groups and a second chain meshed on the outside of the plurality of second sprockets. The second sprockets are respectively fixedly installed at the ends of the drive shafts 241 in the corresponding drive groups. A second motor 245 is fixedly installed in the middle of one side of the auxiliary inner frame 24. The drive end of the second motor 245 is fixedly installed with the end of one of the drive shafts 241. During use, the second motor 245 is controlled to start to drive one of the drive shafts 241 to rotate. With the transmission of the second sprocket drive group 244 and the transmission of the first sprocket drive group 243, a plurality of drive shafts 241 are synchronously driven to rotate, so as to drive the corresponding plurality of first gears 233 to rotate synchronously through the second gears 242, and then control the plurality of material transfer wheels 232 at the positions of the plurality of transportation channels to rotate synchronously, and then drive the circuit boards at the positions of the plurality of transportation channels to be automatically transported.

[0045] The inspection device 4 includes a plurality of second longitudinal frames 41. The second longitudinal frames 41 are fixedly installed at the top of the base 1. A plurality of inspection mechanisms 42 corresponding to the transportation channels are fixedly installed at the top of the second longitudinal frames 41. The plurality of inspection mechanisms 42 are stacked and installed. The inspection mechanism 42 includes two symmetrically distributed inspection side frames 43. The inspection mechanism 42 is fixedly installed at the top of the second longitudinal frame 41 through the inspection side frames 43. Detection devices 431 for automatically detecting the electrical variables and magnetic variables of the circuit boards are fixedly installed at the tops of the two inspection side frames 43. A plurality of transmission rollers 44 are rotatably installed at the bottoms of the two inspection side frames 43. A plurality of transfer members 45 are rotatably installed at the middle position of the bottoms of the two inspection side frames 43. The rotation directions of the transmission rollers 44 and the transfer members 45 are the same as the rotation direction of the material transfer wheels 232. A discharge slot 432 is formed in the inspection side frame 43 at the position close to the second transmission device 5. The circuit boards at the positions of the plurality of transportation channels are automatically transported, automatically transported onto the plurality of transmission rollers 44 in the corresponding inspection device 4, and then transported onto the plurality of transfer members 45, corresponding to the position of the discharge slot 432, and the electrical variables and magnetic variables of the circuit boards in the plurality of transportation channels are automatically detected by the plurality of detection devices 431, effectively improving the overall detection efficiency of the circuit boards.

[0046] The transfer member 45 includes a transmission rotating cylinder 451 which is rotatably installed at the bottom of the inspection side frame 43. A plurality of transfer groups are evenly distributed in the transmission rotating cylinder 451. The transfer group includes a plurality of rotating seats 452 distributed in an annular array. The rotating seats 452 are fixedly installed on the inner wall of the transmission rotating cylinder 451. Transfer wheels 453 are rotatably installed on the rotating seats 452. The rotating direction of the transfer wheels 453 is perpendicular to the rotating direction of the transmission roller 44. The outer part of the transfer wheels 453 extends out of the outer side of the transmission rotating cylinder 451. The circuit board is transmitted onto the plurality of transfer wheels 453 of the plurality of transfer members 45;

[0047] A third gear 454 is fixedly installed at the shaft end of the transfer wheel 453. The outer sides of the third gears 454 at the same position in the plurality of transfer groups are meshed with a driving rack 455. A connecting disk 456 is fixedly installed between the plurality of driving racks 455. A translation driving rod 457 is fixedly installed in the middle of the two connecting disks 456. The translation driving rod 457 is movably clamped in the middle of the transmission rotating cylinder 451. A connecting frame 46 is provided at the outer bottom of the inspection side frame 43. A connecting bearing 461 is fixedly clamped on the connecting frame 46. One end of the translation driving rod 457 extends out of the shaft end of the transmission rotating cylinder 451 and is fixedly clamped in the middle of the corresponding connecting bearing 461. An L-shaped frame 462 is fixedly installed on one side of the outer wall of the inspection side frame 43 close to the connecting frame 46. An electric telescopic rod 463 is fixedly installed on the L-shaped frame 462. The driving end of the electric telescopic rod 463 is fixedly installed with the connecting frame 46. The circuit board is automatically detected for electrical variables and magnetic variables by the detection device 431. When the circuit board is detected as unqualified, the electric telescopic rod 463 at the position of the corresponding transfer member 45 is controlled to expand and contract, driving the connecting frame 46 to drive the plurality of translation driving rods 457, the connecting disks 456 and the plurality of driving racks 455 to perform translational sliding, so as to drive the plurality of transfer wheels 453 to move towards the side of the second transmission device 5, and automatically transmit the unqualified circuit boards on the plurality of transfer wheels 453 to the second transmission device 5 through the discharge groove 432;

[0048] A third sprocket drive set 441 is provided at the shaft ends of multiple conveying rollers 44 and a conveying drum 451. The third sprocket drive set 441 includes multiple third sprockets corresponding to the conveying rollers 44 and the conveying drum 451, and a third chain meshing outside the multiple third sprockets. The third sprockets are respectively fixedly installed at the shaft ends of the corresponding conveying rollers 44 and the conveying drum 451. A third motor 442 is fixedly installed outside the inspection side frame 43. The driving end of the third motor 442 is fixedly installed with the shaft end of one of the conveying rollers 44. By controlling the third motor 442 to start, and cooperating with the drive of the third sprocket drive set 441, the multiple conveying rollers 44 and the conveying drum 451 are controlled to rotate synchronously, so as to automatically convey the circuit boards in the inspection device 4, automatically convey the qualified circuit boards out of the inspection device 4 after inspection, and perform subsequent processing of the circuit boards, thereby realizing the automatic classification and transmission of qualified and unqualified products after circuit board inspection, so as to facilitate the subsequent repair of unqualified circuit boards.

[0049] The first conveying device 3 includes two groups of conveying side frames 31 symmetrically distributed. The conveying side frames 31 are fixedly installed at the top of the base 1. A conveying shaft rod 32 is rotatably installed at the top of each group of conveying side frames 31. The rotation direction of the conveying shaft rod 32 is the same as the rotation direction of the material conveying wheel 232. Conveying wheels 33 are fixedly installed at both ends of the conveying shaft rod 32. A conveying belt 34 is movably sleeved outside the two corresponding conveying wheels 33 on the same side. A fourth motor 35 is fixedly installed at the top of one of the conveying side frames 31. The driving end of the fourth motor 35 is fixedly installed with the end of one of the conveying shaft rods 32. By controlling the fourth motor 35 to start, one of the conveying shaft rods 32 and the conveying wheels 33 are driven to rotate, so as to control the synchronous drive of the two conveying belts 34 on both sides. The circuit boards to be detected are placed on the two conveying belts 34 on both sides. Through the synchronous drive of the two conveying belts 34 on both sides, the circuit boards are controlled to move towards the position of the feeding device 2, and multiple circuit boards to be detected are sequentially moved onto the multiple material conveying wheels 232 in each group of material conveying members 23 for automatic feeding and upward transmission of the circuit boards to be detected.

[0050] The second conveying device 5 includes multiple third longitudinal frames 51. The third longitudinal frames 51 are fixedly installed at the top of the base 1. Multiple second conveying members 52 corresponding to the inspection mechanism 42 are fixedly installed at the top of the third longitudinal frames 51. One end of the second conveying member 52 corresponds to the position of the discharge chute 432 in the inspection mechanism 42. The multiple second conveying members 52 are stacked and installed. The structure of the second conveying member 52 is the same as the structure of the first conveying device 3. The rotation direction of the conveying shaft rod 32 in the second conveying member 52 is perpendicular to the rotation direction of the material conveying wheel 232. The unqualified circuit boards on the multiple transfer wheels 453 are automatically conveyed to the conveying belt 34 in the second conveying device 5 through the discharge chute 432 for automatic conveyance, so as to facilitate the subsequent repair of unqualified circuit boards.

[0051] A method for using a circuit board detection device includes the following steps:

[0052] Step 1: Synchronously control the first motors 223 in the feeding devices 2 on both sides to drive the feeding rotating shafts 22 in the feeding devices 2 on both sides to rotate synchronously in opposite directions, thereby controlling the feeding sprockets 221 to drive the feeding chains 222 in the feeding devices 2 on both sides to perform synchronous reverse transmission, and then sequentially drive the corresponding feeding members 23 on both sides to move upward synchronously. During the synchronous upward movement of the feeding members 23, when the transportation channels and the inspection mechanism 42 are in corresponding positions, the second gears 242 and the corresponding first gears 233 are meshed and connected;

[0053] Step 2: By controlling the fourth motor 35 to be turned on, drive one of the transmission shaft rods 32 and the transmission wheels 33 to rotate, thereby controlling the synchronous transmission of the conveyor belts 34 on both sides. Place the circuit boards to be detected on the conveyor belts 34 on both sides. Through the synchronous transmission of the conveyor belts 34 on both sides, control the circuit boards to move towards the feeding device 2, and sequentially move multiple circuit boards to be detected onto the multiple feeding wheels 232 in each corresponding feeding member 23, perform automatic feeding of the circuit boards to be detected, and control the circuit boards to be detected to move upward through the synchronous upward movement of the feeding members 23;

[0054] When multiple circuit boards to be detected are transmitted upward to a suitable position, control the second motor 245 to be turned on to drive one of the drive shafts 241 to rotate, and cooperate with the transmission of the second sprocket transmission group 244 and the transmission of the first sprocket transmission group 243 to synchronously drive multiple drive shafts 241 to rotate, thereby driving the corresponding multiple first gears 233 to rotate synchronously through the second gears 242, and then controlling the multiple feeding wheels 232 at multiple transportation channel positions to rotate synchronously, and then driving the circuit boards at multiple transportation channel positions to perform automatic transmission, and automatically transmitting them to the multiple transmission rollers 44 in the corresponding inspection device 4;

[0055] At the same time, control the third motor 442 to be turned on, and cooperate with the transmission of the third sprocket transmission group 441 to control the multiple transmission rollers 44 and the transmission rotating cylinders 451 to rotate synchronously, thereby automatically transmitting the circuit boards in the inspection device 4. The circuit boards are transmitted to the multiple transfer wheels 453 on the multiple transfer members 45, corresponding to the discharge slots 432;

[0056] Step 3: Automatically detect the electrical variables and magnetic variables of the circuit boards in multiple transportation channels through multiple detection devices 431;

[0057] When the circuit board is detected as unqualified, the electric telescopic rod 463 at the position of the corresponding transfer member 45 is controlled to expand and contract, driving the connection frame 46 to drive a plurality of translation drive rods 457, connection disks 456 and a plurality of drive racks 455 to perform translational sliding, thereby driving a plurality of transfer wheels 453 to move towards one side of the second transmission device 5, and automatically transmitting the unqualified circuit boards on the plurality of transfer wheels 453 to the conveyor belt 34 in the second transmission device 5 through the discharge chute 432 for automatic transmission, so as to perform subsequent maintenance on the unqualified circuit boards;

[0058] When the circuit board is detected as qualified, the circuit board in the inspection device 4 continues to be transmitted, and the qualified circuit board after the inspection is automatically transmitted out of the inspection device 4 for subsequent processing of the circuit board, so as to realize the automatic classification and transmission of qualified and unqualified products after the circuit board inspection.

[0059] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board detection device, comprising a base (1), characterized in that: A feeding device (2) is fixedly installed in the middle of the top end of the base (1). There are two symmetrically distributed feeding devices (2). A first transmission device (3) is arranged between the two feeding devices (2). A conveying and inspecting device (4) is fixedly arranged on one side of the top end of the base (1) away from the first transmission device (3). A second transmission device (5) is fixedly installed on one side of the top end of the base (1) close to the conveying and inspecting device (4). The feeding device (2) includes two symmetrically distributed first longitudinal frames (21). The first longitudinal frames (21) are fixedly installed at the top end of the base (1). Feeding rotating shafts (22) are rotatably installed at the top and bottom of the first longitudinal frames (21). First motors (223) are fixedly installed at the bottom ends of the first longitudinal frames (21). The driving ends of the first motors (223) are fixedly installed with one end of the feeding rotating shafts (22). Feeding sprockets (221) are fixedly installed at both ends of the feeding rotating shafts (22). Feeding chains (222) are meshed and connected to the outside of the feeding sprockets (221) at the same end positions on the feeding rotating shafts (22). A plurality of evenly distributed material conveying members (23) are fixedly installed on the two feeding chains (222). The material conveying members (23) at the same horizontal position in the two feeding devices (2) form a transportation channel. The material conveying member (23) includes a first cross frame (231). The two ends of the first cross frame (231) are respectively fixedly installed with the corresponding feeding chains (222). A plurality of evenly distributed material conveying wheels (232) are rotatably installed on the first cross frame (231). First gears (233) are fixedly installed at the shaft ends of the material conveying wheels (232). The rotation direction of the material conveying wheels (232) is perpendicular to the rotation direction of the feeding rotating shaft (22). An auxiliary inner frame (24) is fixedly installed between the two first longitudinal frames (21). The auxiliary inner frame (24) is provided with multiple groups of driving groups corresponding to the transportation channel. Each driving group includes a plurality of driving shafts (241) corresponding to the material conveying wheels (232). The driving shafts (241) are rotatably installed on the auxiliary inner frame (24). A second gear (242) is fixedly installed at one end of the driving shaft (241). The second gear (242) is meshed and connected to the corresponding first gear (233). A first sprocket transmission group (243) is arranged on one side of each driving group away from the second gear (242). The first sprocket transmission group (243) includes a plurality of first sprockets corresponding to the driving shafts (241) and a first chain meshed on the outside of the plurality of first sprockets. The first sprockets are respectively fixedly installed at the ends of the corresponding driving shafts (241). A second sprocket transmission group (244) is arranged on one side of the plurality of driving groups away from the second gear (242). The second sprocket transmission group (244) includes a plurality of second sprockets corresponding to the driving groups and a second chain meshed on the outside of the plurality of second sprockets. The second sprockets are respectively fixedly installed at the ends of the driving shafts (241) in the corresponding driving groups.

2. The circuit board detection device according to claim 1, characterized in that: A second motor (245) is fixedly installed in the middle of one side of the auxiliary inner frame (24), and the driving end of the second motor (245) is fixedly installed with the end of one of the driving shafts (241).

3. The circuit board detection device according to claim 2, characterized in that: The inspection and conveying device (4) includes a plurality of second longitudinal frames (41). The second longitudinal frames (41) are fixedly installed at the top of the base (1). A plurality of inspection and conveying mechanisms (42) corresponding to the transportation channel are fixedly installed at the top of the second longitudinal frames (41). The plurality of inspection and conveying mechanisms (42) are stacked and installed. The inspection and conveying mechanism (42) includes two symmetrically distributed inspection and conveying side frames (43). The inspection and conveying mechanism (42) is fixedly installed at the top of the second longitudinal frame (41) through the inspection and conveying side frames (43). Detection devices (431) for automatically detecting the electrical variables and magnetic variables of the circuit board are fixedly installed at the top of the two inspection and conveying side frames (43). A plurality of transmission rollers (44) are rotatably installed at the bottom of the two inspection and conveying side frames (43). A plurality of transfer members (45) are rotatably installed at the middle position of the bottom of the two inspection and conveying side frames (43). The rotation directions of the transmission rollers (44) and the transfer members (45) are the same as the rotation direction of the material transfer wheel (232). A discharge slot (432) is formed in the inspection and conveying side frame (43) close to the side of the second transmission device (5).

4. The circuit board detection device according to claim 3, characterized in that: The transfer member (45) includes a transmission rotating cylinder (451). The transmission rotating cylinder (451) is rotatably installed at the bottom of the inspection and conveying side frame (43). A plurality of uniformly distributed transfer groups are provided in the transmission rotating cylinder (451). Each transfer group includes a plurality of rotating seats (452) distributed in an annular array. The rotating seats (452) are fixedly installed on the inner wall of the transmission rotating cylinder (451). Transfer wheels (453) are rotatably installed on the rotating seats (452). The rotation direction of the transfer wheels (453) is perpendicular to the rotation direction of the transmission rollers (44). The outer part of the transfer wheels (453) extends out of the outer side of the transmission rotating cylinder (451). A third gear (454) is fixedly installed at the shaft end of the transfer wheels (453). The outer sides of the third gears (454) at the same position in the plurality of transfer groups are meshed with a driving rack (455). A connecting disk (456) is fixedly installed between the plurality of driving racks (455). A translation driving rod (457) is fixedly installed in the middle of the two connecting disks (456). The translation driving rod (457) is movably clamped in the middle of the transmission rotating cylinder (451). A connecting frame (46) is provided at the outer bottom of the inspection and conveying side frame (43). A connecting bearing (461) is fixedly clamped on the connecting frame (46). One end of the translation driving rod (457) extends out of the shaft end of the transmission rotating cylinder (451) and is fixedly clamped in the middle of the corresponding connecting bearing (461). An L-shaped frame (462) is fixedly installed on one side of the outer wall of the inspection and conveying side frame (43) close to the connecting frame (46). An electric telescopic rod (463) is fixedly installed on the L-shaped frame (462). The driving end of the electric telescopic rod (463) is fixedly installed with the connecting frame (46).

5. The circuit board detection device according to claim 4, wherein: The shaft ends of the plurality of the conveying rollers (44) and the conveying drum (451) are provided with a third sprocket drive set (441). The third sprocket drive set (441) includes a plurality of third sprockets corresponding to the conveying rollers (44) and the conveying drum (451), and a third chain meshing outside the plurality of third sprockets. The third sprockets are respectively fixedly installed at the shaft ends of the corresponding conveying rollers (44) and the conveying drum (451). A third motor (442) is fixedly installed outside the inspection side frame (43), and the driving end of the third motor (442) is fixedly installed with the shaft end of one of the conveying rollers (44).

6. A circuit board detection device according to claim 5, characterized in that: The first conveying device (3) includes two groups of symmetrically distributed conveying side frames (31). The conveying side frames (31) are fixedly installed at the top of the base (1). A conveying shaft rod (32) is rotatably installed at the top of each group of the conveying side frames (31). The rotating direction of the conveying shaft rod (32) is the same as the rotating direction of the material conveying wheel (232). Conveying wheels (33) are fixedly installed at both ends of the conveying shaft rod (32). A conveying belt (34) is movably sleeved outside the two corresponding conveying wheels (33) on the same side. A fourth motor (35) is fixedly installed at the top of one of the conveying side frames (31), and the driving end of the fourth motor (35) is fixedly installed with the end of one of the conveying shaft rods (32).

7. A circuit board detection device according to claim 6, characterized in that: The second conveying device (5) includes a plurality of third longitudinal frames (51). The third longitudinal frames (51) are fixedly installed at the top of the base (1). A plurality of second conveying members (52) corresponding to the inspection mechanism (42) are fixedly installed at the top of the third longitudinal frames (51). One end of the second conveying member (52) corresponds to the position of the discharge chute (432) in the inspection mechanism (42). The plurality of second conveying members (52) are stacked and installed. The structure of the second conveying member (52) is the same as the structure of the first conveying device (3). The rotating direction of the conveying shaft rod (32) in the second conveying member (52) is perpendicular to the rotating direction of the material conveying wheel (232).

8. A method for using the circuit board detection device according to claim 7, characterized in that It includes the following steps: Step 1: Synchronously control the first motors (223) in the two side feeding devices (2) to be started, drive the feeding rotating shafts (22) in the two side feeding devices (2) to rotate synchronously in opposite directions, so as to control the feeding sprockets (221) to drive the feeding chains (222) in the two side feeding devices (2) to be transmitted synchronously in opposite directions, and then drive the corresponding feeding members (23) on both sides to move up synchronously in turn. During the synchronous upward movement of the feeding members (23), when the transportation channel corresponds to the inspection mechanism (42), the second gear (242) is meshed and connected with the corresponding first gear (233); Step 2: By controlling the fourth motor (35) to start, drive one of the transmission shaft rods (32) and the transmission wheels (33) to rotate, thereby controlling the synchronous transmission of the two transmission belts (34). Place the circuit board to be detected on the two transmission belts (34). Through the synchronous transmission of the two transmission belts (34), control the circuit board to move towards the position of the feeding device (2), and sequentially move multiple circuit boards to be detected onto multiple transmission wheels (232) in each set of feeding components (23) for automatic feeding of the circuit boards to be detected. And control the circuit boards to be detected to be transported upward through the synchronous upward movement of the feeding components (23); When multiple circuit boards to be detected are transported upward to a suitable position, control the second motor (245) to start and drive one of the drive shafts (241) to rotate. With the cooperation of the transmission of the second sprocket transmission group (244) and the transmission of the first sprocket transmission group (243), synchronously drive multiple drive shafts (241) to rotate, thereby driving the corresponding multiple first gears (233) to rotate synchronously through the second gears (242), and then controlling the multiple transmission wheels (232) at the positions of multiple transportation channels to rotate synchronously, and then driving the circuit boards at the positions of multiple transportation channels to be automatically transported to multiple transmission rollers (44) in the corresponding position inspection device (4); Meanwhile, control the third motor (442) to start. With the cooperation of the transmission of the third sprocket transmission group (441), control the multiple transmission rollers (44) and the transmission rotating cylinder (451) to rotate synchronously, thereby automatically transporting the circuit boards in the inspection device (4), and the circuit boards are transported to multiple transfer wheels (453) on multiple transfer components (45), corresponding to the position of the discharge chute (432); Step 3: Automatically detect the electrical variables and magnetic variables of the circuit boards in multiple transportation channels through multiple detection devices (431); When the circuit board is detected to be unqualified, control the electric telescopic rod (463) at the position of the corresponding transfer component (45) to extend and retract, drive the connecting frame (46) to drive multiple translation driving rods (457), the connecting disc (456) and multiple driving racks (455) to perform translational sliding, thereby driving multiple transfer wheels (453) to move towards one side of the second transmission device (5), and automatically transport the unqualified circuit boards on the multiple transfer wheels (453) to the transmission belt (34) in the second transmission device (5) for automatic transmission, so as to perform subsequent maintenance on the unqualified circuit boards; When the circuit board is detected to be qualified, continue to transport the circuit boards in the inspection device (4), and automatically send out the qualified circuit boards after detection from the inspection device (4) for subsequent processing of the circuit boards, so as to realize the automatic classification and transmission of qualified and unqualified products after circuit board detection.

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