Circuit board detection device and method

Abstract

The invention discloses a circuit board detection device and method, and particularly relates to the technical field of circuit board detection.The circuit board detection device comprises a base, two feeding devices are fixedly installed in the middle of the top end of the base, the two feeding devices are symmetrically distributed, and a first conveying device is arranged between the two feeding devices; the side, away from the first conveying device, of the top end of the base is fixedly provided with a conveying and detecting device, and the side, close to the conveying and detecting device, of the top end of the base is fixedly provided with a second conveying device. The feeding device comprises two first longitudinal frames which are symmetrically distributed, the feeding device is arranged and used in cooperation with the first conveying device, circuit boards to be detected are automatically conveyed into the feeding device, automatic feeding of the multiple circuit boards is carried out, and the multiple circuit boards are controlled to move upwards; and a plurality of circuit boards can be conveniently and synchronously moved to the conveying and detecting device to automatically detect the electrical variables and the magnetic variables of the multi-channel circuit boards, so that the overall detection efficiency of the circuit boards is effectively improved.

Description

Technical Field

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

[0002] A circuit board is a substrate used to support and connect electronic components. The main function of a circuit board is to provide an electrical connection path for electronic components, as well as to fix and support these components. Circuit boards need to be tested during production and processing to ensure the quality and reliability of electronic products. The tests mainly include appearance testing, electrical performance testing, and welding quality testing. The electrical and magnetic variable detection of traditional circuit boards is mostly done by manually holding the circuit board and placing it at a detection station. A special instrument is used to connect the pin position of the circuit board to perform electrical and magnetic variable detection of the circuit board. After the detection is completed, the circuit board is moved out of the detection station and the next circuit board is tested. Manual detection is relatively inefficient and can easily cause damage to the circuit board. To this end, we propose a circuit board detection device and method to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a circuit board detection device and method to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a circuit board detection device, comprising a base, a feeding device is fixedly installed at the middle of the top of the base, the feeding device is provided with two symmetrically distributed, a first transmission device is provided between the two feeding devices, a transport inspection device is fixedly installed on the side of the top of the base away from the first transmission device, and a second transmission device is fixedly installed on the side of the top of the base close to the transport inspection device; The feeding device comprises two symmetrically distributed first longitudinal frames, the first longitudinal frames are fixedly mounted on the top of the base, the top and bottom of the first longitudinal frames are rotatably mounted with feeding shafts, the bottom of the first longitudinal frames are fixedly mounted with first motors, the driving end of the first motor and one end of the feeding shaft are fixedly mounted, both ends of the feeding shaft are fixedly mounted with feeding sprockets, the outer sides of the feeding sprockets at the same end positions on the feeding shafts are meshed and connected with feeding chains, and a plurality of evenly distributed material transmission members are fixedly mounted on the two feeding chains; The material transfer members at the same horizontal position in the two feeding devices form a transport channel.

[0005] As a preferred technical solution of the present invention, the material transmission component includes a first horizontal frame, the two ends of the first horizontal frame are respectively fixedly installed with the corresponding feeding chains, and a plurality of evenly distributed material transmission wheels are rotatably installed on the first horizontal frame. A first gear is fixedly installed on the shaft end of the material transmission wheel, and the rotation direction of the material transmission wheel is perpendicular to the rotation direction of the feeding shaft.

[0006] As a preferred technical solution of the present invention, an auxiliary inner frame is fixedly installed between the two first longitudinal frames, and the auxiliary inner frame is provided with multiple drive groups corresponding to the transport channels, the drive group includes multiple drive shafts corresponding to the material transfer wheel, the drive shaft is rotatably installed on the auxiliary inner frame, one end of the drive shaft is fixedly installed with a second gear, the second gear is meshingly connected with the corresponding first gear, and a first sprocket transmission group is provided on the side of the drive group away from the second gear, the first sprocket transmission group includes multiple first sprockets corresponding to the drive shaft and a first chain meshed with the outside of the multiple first sprockets, the first sprockets are respectively fixedly installed on the ends of the corresponding drive shafts, and a second sprocket transmission group is provided on the side of the multiple drive groups away from the second gear, the second sprocket transmission group includes multiple second sprockets corresponding to the drive group and a second chain meshed with the outside of the multiple second sprockets, and the second sprockets are respectively fixedly installed on the ends of the drive shafts in the corresponding drive groups.

[0007] 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 a driving end of the second motor and an end of one of the driving shafts are fixedly installed.

[0008] As a preferred technical solution of the present invention, the transport and inspection device includes a plurality of second vertical frames, the second vertical frames are fixedly mounted on the top of the base, a plurality of transport and inspection mechanisms corresponding to the transport channels are fixedly mounted on the top of the second vertical frames, a plurality of the transport and inspection mechanisms are stacked and installed, the transport and inspection mechanisms include two symmetrically distributed transport and inspection side frames, the transport and inspection mechanisms are fixedly mounted on the top of the second vertical frames through the transport and inspection side frames, a detection device for automatic detection of electrical and magnetic variables of the circuit board is fixedly mounted on the top of the two transport and inspection side frames, a plurality of transmission rollers are rotatably mounted on the bottom of the two transport and inspection side frames, a plurality of transfer parts are rotatably mounted at the middle position of the bottom of the two transport and inspection side frames, the rotation direction of the transmission rollers and the transfer parts is the same as the rotation direction of the material transfer wheel, and a discharge trough is provided on the transport and inspection side frame close to one side of the second transmission device.

[0009] As a preferred technical solution of the present invention, the transfer member includes a transmission drum, which is rotatably installed at the bottom of the transport and inspection side frame. A plurality of evenly distributed transfer groups are provided in the transmission drum, and the transfer groups include a plurality of rotating seats distributed in a circular array, and the rotating seats are fixedly installed on the inner wall of the transmission drum. Transfer wheels are rotatably installed on the rotating seats, and the rotation direction of the transfer wheels is perpendicular to the rotation direction of the transmission roller. The outside of the transfer wheel extends out of the outside of the transmission drum, and a third gear is fixedly installed on the shaft end of the transfer wheel. The third gears at the same position in the plurality of transfer groups A driving rack is meshed and connected on the outside, a connecting plate is fixedly installed between the multiple driving racks, a translation drive rod is fixedly installed in the middle of two of the connecting plates, and the translation drive rod is movably clamped in the middle of the transmission drum, a connecting frame is provided at the bottom of the outer side of the transport and inspection side frame, a connecting bearing is fixedly clamped on the connecting frame, one end of the translation drive rod extends out of the axial end of the transmission drum and is fixedly clamped in the middle of the corresponding connecting bearing, an L-shaped frame is fixedly installed on the outer wall of the transport and inspection side frame close to the connecting frame, an electric telescopic rod is fixedly installed on the L-shaped frame, and the driving end of the electric telescopic rod and the connecting frame are fixedly installed.

[0010] As a preferred technical solution of the present invention, a third sprocket transmission group is provided at the shaft ends of the plurality of transmission rollers and the transmission drum, and the third sprocket transmission group includes a plurality of third sprockets corresponding to the transmission rollers and the transmission drum and a third chain meshed with the outer sides of the plurality of third sprockets, and the third sprockets are respectively fixedly mounted on the shaft ends of the corresponding transmission rollers and the transmission drum, and a third motor is fixedly mounted on the outer side of the transport and inspection side frame, and the driving end of the third motor and the shaft end of one of the transmission rollers are fixedly mounted.

[0011] As a preferred technical solution of the present invention, the first transmission device includes two groups of symmetrically distributed transmission side frames, the transmission side frames are fixedly installed on the top of the base, and a transmission shaft is rotatably installed on the top of each group of the transmission side frames. The rotation direction of the transmission shaft is the same as the rotation direction of the material transfer wheel, and transmission wheels are fixedly installed on both ends of the transmission shaft, and a transmission belt is provided on the outer movable sleeves corresponding to the two transmission wheels on the same side, and a fourth motor is fixedly installed on the top of one of the transmission side frames, and the driving end of the fourth motor and the end of one of the transmission shafts are fixedly installed.

[0012] As a preferred technical solution of the present invention, the second transmission device includes a plurality of third vertical frames, the third vertical frames are fixedly installed on the top of the base, and a plurality of second transmission members corresponding to the transport and inspection mechanism are fixedly installed on the top of the third vertical frames, one end of the second transmission member corresponds to the position of the discharge trough in the transport and inspection mechanism, and a plurality of the second transmission members are stacked and installed, the structure of the second transmission member is the same as that of the first transmission device, and the rotation direction of the transmission shaft in the second transmission member is perpendicular to the rotation direction of the material transfer wheel.

[0013] A method for using a circuit board detection device comprises the following steps: Step 1: synchronously control and start the first motors in the feeding devices on both sides, drive the feeding shafts in the feeding devices on both sides to rotate synchronously in the opposite direction, thereby controlling the feeding sprockets to drive the feeding chains in the feeding devices on both sides to transmit synchronously in the opposite direction, and then sequentially drive the corresponding material transmission parts on both sides to move upward synchronously. During the process of the material transmission parts moving upward synchronously, when the positions of the transport channel and the transport inspection mechanism correspond, the second gear is meshed and connected with the corresponding first gear; Step 2: by controlling the fourth motor to start, drive one of the transmission shafts and the transmission wheel to rotate, thereby controlling the transmission belts on both sides to perform synchronous transmission, placing the circuit board to be tested on the transmission belts on both sides, and controlling the circuit board to move to the position of the feeding device through the synchronous transmission of the transmission belts on both sides, and sequentially moving multiple circuit boards to be tested to the multiple feeding wheels in each group of feeding members, automatically feeding the circuit boards to be tested, and controlling the upward transmission of the circuit boards to be tested through the synchronous upward movement of the feeding members; When multiple circuit boards to be inspected are transferred upward to a suitable position, the second motor is controlled to start driving one of the drive shafts to rotate, and the transmission of the second sprocket transmission group and the transmission of the first sprocket transmission group are used in conjunction to synchronously drive multiple drive shafts to rotate, so that the corresponding multiple first gears are driven to rotate synchronously through the second gear, thereby controlling multiple material transfer wheels at multiple transport channel positions to rotate synchronously, thereby driving the circuit boards at multiple transport channel positions to be automatically transferred and automatically transferred to multiple transfer rollers in the corresponding position inspection device; At the same time, the third motor is controlled to start, and the transmission of the third sprocket transmission group is coordinated to control the multiple transmission rollers and the transmission drum to rotate synchronously, so as to automatically transmit the circuit board in the transport inspection device, and the circuit board is transmitted to the multiple transmission wheels on the multiple transmission parts, corresponding to the position of the discharge trough; Step 3: Automatically detect the electrical and magnetic variables of the circuit boards in the multiple transport channels by using multiple detection devices; When the circuit board is detected as unqualified, the electric telescopic rod at the corresponding transfer part position is controlled to be extended and retracted, and the connecting frame is driven to drive multiple translation drive rods, connecting plates and multiple driving racks to slide in translation, thereby driving multiple transfer wheels to move to one side of the second transmission device, and automatically transferring the unqualified circuit boards on the multiple transfer wheels to the conveyor belt in the second transmission device through the discharge trough for automatic transmission, so as to subsequently inspect and repair the unqualified circuit boards; When the circuit board passes the inspection, the circuit board in the inspection device continues to be transmitted, and the qualified circuit board after the inspection is automatically transmitted out of the inspection device for subsequent circuit board processing, thereby realizing automatic classification and transmission of qualified and unqualified products after the circuit board inspection.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a feeding device and using the first transmission device in conjunction, the circuit board to be tested is automatically transmitted to the feeding device, multiple circuit boards are automatically fed and controlled to move up, which facilitates the subsequent simultaneous movement of multiple circuit boards to the transmission and inspection device for automatic detection of electrical and magnetic variables of multi-channel circuit boards, thereby effectively improving the overall detection efficiency of the circuit boards.

[0015] 2. By setting up a transport and inspection device and using a second transmission device in conjunction, it is convenient to automatically transmit the circuit boards in the transport and inspection device, thereby realizing automatic classification and transmission of qualified and unqualified products after circuit board inspection, so as to facilitate subsequent repair of unqualified circuit boards and subsequent processing of qualified circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the feeding device in the present invention.

[0019] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0020] Figure 4 It is a schematic diagram of partial structural connection of the feeding device in the present invention.

[0021] Figure 5 For the present invention Figure 4Enlarged view of point B in the middle.

[0022] Figure 6 It is a schematic diagram of the structural connection between the transport inspection device and the second transmission device in the present invention.

[0023] Figure 7 It is a schematic diagram of the structural connection between the transport inspection mechanism and the second transmission member in the present invention.

[0024] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle.

[0025] Fig. 9 It is a schematic diagram of the structural connection of the transfer member in the present invention.

[0026] Fig.10 For the present invention Fig. 9 Enlarged view of point D in the middle.

[0027] Fig.11 It is a schematic structural diagram of the first transmission device in the present invention.

[0028] In the figure: 1, base; 2, feeding device; 3, first transmission device; 4, transport inspection device; 5, second transmission device; 21, first vertical frame; 22, feeding shaft; 221, feeding sprocket; 222, feeding chain; 223, first motor; 23, material transmission member; 231, first horizontal frame; 232, material transmission 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 vertical frame; 42, transport inspection mechanism; 43, transport inspection side frame; 4 31. Detection equipment; 432. Discharge chute; 44. Transmission roller; 441. Third sprocket transmission group; 442. Third motor; 45. Transfer member; 46. Connecting frame; 461. Connecting bearing; 462. L-shaped frame; 463. Electric telescopic rod; 451. Transmission drum; 452. Rotating seat; 453. Transfer wheel; 454. Third gear; 455. Driving rack; 456. Connecting plate; 457. Translational drive rod; 31. Transmission side frame; 32. Transmission shaft; 33. Transmission wheel; 34. Transmission belt; 35. Fourth motor; 51. Third longitudinal frame; 52. Second transmission member. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example: Figure 1-11 As shown, the present invention provides a circuit board detection device, including a base 1, a feeding device 2 is fixedly installed in the middle of the top of the base 1, two feeding devices 2 are symmetrically distributed, a first transmission device 3 is arranged between the two feeding devices 2, a transport inspection device 4 is fixedly installed on the side of the top of the base 1 away from the first transmission device 3, and a second transmission device 5 is fixedly installed on the side of the top of the base 1 close to the transport inspection device 4; The feeding device 2 includes two first vertical frames 21 that are symmetrically distributed. The first vertical frames 21 are fixedly mounted on the top of the base 1. The top and bottom of the first vertical frames 21 are rotatably mounted with a feeding shaft 22. The bottom of the first vertical frame 21 is fixedly mounted with a first motor 223. The driving end of the first motor 223 is fixedly mounted to one end of the feeding shaft 22. Both ends of the feeding shaft 22 are fixedly mounted with a feeding sprocket 221. The outer side of the feeding sprocket 221 at the same end position on the feeding shaft 22 is meshedly connected with a feeding chain 222. The two feeding chains 222 A plurality of evenly distributed material transfer members 23 are fixedly installed on the upper surface; the material transfer members 23 at the same horizontal position in the two feeding devices 2 form a transport channel, and the first motor 223 in the feeding devices 2 on both sides is turned on through synchronous control to drive the feeding shafts 22 in the feeding devices 2 on both sides to rotate synchronously in the opposite direction, thereby controlling the feeding sprocket 221 to drive the feeding chains 222 in the feeding devices 2 on both sides to perform synchronous reverse transmission, and then driving the corresponding material transfer members 23 on both sides to move upward synchronously in turn, so as to facilitate the upward transmission of the circuit boards transmitted to the corresponding material transfer members 23 on both sides.

[0031] The material transfer member 23 includes a first horizontal frame 231, and the two ends of the first horizontal frame 231 are respectively fixedly installed with the corresponding feeding chains 222. A plurality of evenly distributed material transfer wheels 232 are rotatably installed on the first horizontal frame 231, and a first gear 233 is fixedly installed on the shaft end of the material transfer wheel 232. The rotation direction of the material transfer wheel 232 is perpendicular to the rotation direction of the feeding shaft 22, and the circuit board is automatically transferred to the plurality of material transfer wheels 232 in the corresponding material transfer members 23 on both sides; An auxiliary inner frame 24 is fixedly installed between the two first longitudinal frames 21, and multiple drive groups corresponding to the transport channels are arranged on the auxiliary inner frame 24, and the drive group includes multiple drive shafts 241 corresponding to the material transfer wheel 232, and the drive shaft 241 is rotatably installed on the auxiliary inner frame 24, and a second gear 242 is fixedly installed on one end of the drive shaft 241, and the second gear 242 is meshed and connected with the corresponding first gear 233, and a first sprocket transmission group 243 is arranged on the side of the drive group away from the second gear 242, and the first sprocket transmission group 243 includes multiple first sprockets corresponding to the drive shaft 241 and a first chain meshed on the outside of the multiple first sprockets, and the first sprockets are fixedly installed on the ends of the corresponding drive shafts 241, and a second sprocket transmission group 244 is arranged on the side of the multiple drive groups away from the second gear 242, and the second sprocket transmission group 244 includes The auxiliary inner frame 24 comprises a plurality of second sprockets corresponding to the group and a second chain meshed with the outer sides of the plurality of second sprockets, and the second sprockets are respectively fixedly mounted on the ends of the driving shafts 241 in the corresponding driving groups; a second motor 245 is fixedly mounted in the middle of one side of the auxiliary inner frame 24, and the driving end of the second motor 245 and the end of one of the driving shafts 241 are fixedly mounted. When in use, the second motor 245 is controlled to start driving one of the driving shafts 241 to rotate, and the transmission of the second sprocket transmission group 244 and the transmission of the first sprocket transmission group 243 are used in conjunction to synchronously drive the plurality of driving shafts 241 to rotate, thereby driving the corresponding plurality of first gears 233 to rotate synchronously through the second gear 242, thereby controlling the plurality of material transfer wheels 232 at the plurality of transport channel positions to rotate synchronously, thereby driving the circuit boards at the plurality of transport channel positions to be automatically transmitted.

[0032] The transport inspection device 4 includes a plurality of second longitudinal frames 41, the second longitudinal frames 41 are fixedly mounted on the top of the base 1, a plurality of transport inspection mechanisms 42 corresponding to the transport channel are fixedly mounted on the top of the second longitudinal frames 41, the plurality of transport inspection mechanisms 42 are stacked and installed, the transport inspection mechanism 42 includes two symmetrically distributed transport inspection side frames 43, the transport inspection mechanism 42 is fixedly mounted on the top of the second longitudinal frames 41 through the transport inspection side frames 43, a detection device 431 for automatic detection of electrical and magnetic variables of the circuit board is fixedly mounted on the top of the two transport inspection side frames 43, a plurality of transmission rollers 44 are rotatably mounted on the bottom of the two transport inspection side frames 43, and the bottom of the two transport inspection side frames 43 A plurality of transfer parts 45 are rotatably installed in the middle position, and the rotation direction of the transmission rollers 44 and the transfer parts 45 is the same as the rotation direction of the feeding wheel 232. A discharge groove 432 is provided on the transport inspection side frame 43 close to the side of the second transmission device 5. The circuit boards in the positions of multiple transport channels are automatically transported to the multiple transmission rollers 44 in the transport inspection device 4 at the corresponding positions, and are then transferred to the multiple transfer parts 45 corresponding to the positions of the discharge grooves 432. The electrical and magnetic variables of the circuit boards in the multiple transport channels are automatically detected by multiple detection devices 431, which effectively improves the overall detection efficiency of the circuit boards.

[0033] The transfer member 45 includes a transmission drum 451, which is rotatably mounted at the bottom of the transport and inspection side frame 43. A plurality of evenly distributed transfer groups are provided in the transmission drum 451, and the transfer groups include a plurality of rotating seats 452 distributed in a circular array. The rotating seats 452 are fixedly mounted on the inner wall of the transmission drum 451, and transfer wheels 453 are rotatably mounted on the rotating seats 452. The rotation direction of the transfer wheels 453 is perpendicular to the rotation direction of the transmission roller 44, and the outside of the transfer wheels 453 extends out of the outside of the transmission drum 451. The circuit board is transferred to the plurality of transfer wheels 453 on the plurality of transfer members 45; A third gear 454 is fixedly installed on the axial end of the transfer wheel 453, and a driving rack 455 is meshed and connected to the outer side of the third gear 454 at the same position in the multiple transfer groups. A connecting plate 456 is fixedly installed between the multiple driving racks 455, and a translation drive rod 457 is fixedly installed in the middle of the two connecting plates 456. The translation drive rod 457 is movably connected to the middle of the transmission drum 451. A connecting frame 46 is provided at the outer bottom of the transport and inspection side frame 43, and a connecting bearing 461 is fixedly provided on the connecting frame 46. One end of the translation drive rod 457 extends out of the axial end of the transmission drum 451 and is fixedly connected to the middle of the corresponding connecting bearing 461. The outer wall of the transport and inspection side frame 43 is fixedly installed on one side close to the connecting frame 46. An L-shaped frame 462 is installed, and an electric telescopic rod 463 is fixedly installed on the L-shaped frame 462. The driving end of the electric telescopic rod 463 and the connecting frame 46 are fixedly installed. The electric variable and magnetic variable of the circuit board are automatically detected by the detection device 431. When the circuit board is detected to be unqualified, the electric telescopic rod 463 at the position of the corresponding transport member 45 is controlled to be opened and extended, and the connecting frame 46 is driven to drive multiple translation drive rods 457, the connecting plate 456 and multiple driving racks 455 to slide in translation, thereby driving multiple transfer wheels 453 to move to one side of the second transmission device 5, and automatically transferring the unqualified circuit boards on the multiple transfer wheels 453 to the second transmission device 5 through the discharge trough 432; A third sprocket transmission group 441 is provided at the shaft ends of multiple transmission rollers 44 and transmission drum 451. The third sprocket transmission group 441 includes multiple third sprockets corresponding to the transmission rollers 44 and transmission drum 451 and a third chain meshed on the outside of the multiple third sprockets. The third sprockets are fixedly installed on the shaft ends of the corresponding transmission rollers 44 and transmission drum 451 respectively. A third motor 442 is fixedly installed on the outside of the inspection side frame 43. The driving end of the third motor 442 and the shaft end of one of the transmission rollers 44 are fixedly installed. By controlling the opening of the third motor 442 and cooperating with the transmission of the third sprocket transmission group 441, the multiple transmission rollers 44 and the transmission drum 451 are controlled to rotate synchronously, thereby automatically transmitting the circuit boards in the inspection device 4, and automatically transmitting the qualified circuit boards after the inspection to the inspection device 4 for subsequent processing of the circuit boards, thereby realizing the automatic classification and transmission of qualified and unqualified products after the circuit board inspection, so as to facilitate the subsequent inspection of the unqualified circuit boards.

[0034] The first transmission device 3 includes two groups of transmission side frames 31 distributed symmetrically. The transmission side frames 31 are fixedly installed on the top of the base 1. A transmission shaft 32 is rotatably installed on the top of each group of transmission side frames 31. The rotation direction of the transmission shaft 32 is the same as the rotation direction of the material transfer wheel 232. Transmission wheels 33 are fixedly installed on both ends of the transmission shaft 32. The outer movable sleeves of the two transmission wheels 33 on the same side are provided with a transmission belt 34. A fourth motor 35 is fixedly installed on the top of one of the transmission side frames 31. The driving end of the fourth motor 35 and the transmission belt 34 are connected to each other. The end of a transmission shaft 32 is fixedly installed, and the fourth motor 35 is controlled to be turned on to drive one of the transmission shafts 32 and the transmission wheel 33 to rotate, thereby controlling the synchronous transmission of the transmission belts 34 on both sides, and placing the circuit board to be inspected on the transmission belts 34 on both sides. Through the synchronous transmission of the transmission belts 34 on both sides, the circuit board is controlled to move to the position of the loading device 2, and multiple circuit boards to be inspected are moved to the corresponding multiple feeding wheels 232 in each group of feeding members 23 in turn, and the circuit boards to be inspected are automatically loaded and transmitted upward.

[0035] The second transmission device 5 includes a plurality of third vertical frames 51, which are fixedly mounted on the top of the base 1, and a plurality of second transmission members 52 corresponding to the transport and inspection mechanism 42 are fixedly mounted on the top of the third vertical frames 51, one end of the second transmission member 52 corresponds to the position of the discharge slot 432 in the transport and inspection mechanism 42, and the plurality of second transmission members 52 are stacked and installed, and the structure of the second transmission member 52 is the same as that of the first transmission device 3, and the rotation direction of the transmission shaft 32 in the second transmission member 52 is perpendicular to the rotation direction of the feeding wheel 232, so that the unqualified circuit boards on the plurality of transfer wheels 453 are automatically transferred to the conveyor belt 34 in the second transmission device 5 through the discharge slot 432 for automatic transmission, so that the unqualified circuit boards can be subsequently repaired.

[0036] A method for using a circuit board detection device comprises the following steps: Step 1: synchronously control and start the first motors 223 in the feeding devices 2 on both sides, drive the feeding shafts 22 in the feeding devices 2 on both sides to rotate synchronously in the opposite direction, 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 material transmission members 23 on both sides to move upward synchronously. During the process of the material transmission members 23 moving upward synchronously, when the positions of the transport channel and the transport inspection mechanism 42 correspond, 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 shafts 32 and the transmission wheel 33 to rotate, thereby controlling the transmission belts 34 on both sides to perform synchronous transmission, placing the circuit board to be tested on the transmission belts 34 on both sides, and controlling the circuit board to move to the position of the feeding device 2 through the synchronous transmission of the transmission belts 34 on both sides, and sequentially moving multiple circuit boards to be tested to the multiple feeding wheels 232 in each group of feeding members 23, automatically feeding the circuit boards to be tested, and controlling the upward transmission of the circuit boards to be tested through the synchronous upward movement of the feeding members 23; When multiple circuit boards to be inspected are transferred upward to a suitable position, the second motor 245 is controlled to start driving one of the drive shafts 241 to rotate, and the transmission of the second sprocket transmission group 244 and the transmission of the first sprocket transmission group 243 are used in conjunction to synchronously drive multiple drive shafts 241 to rotate, thereby driving the corresponding multiple first gears 233 to rotate synchronously through the second gear 242, thereby controlling the multiple material transfer wheels 232 at the multiple transport channel positions to rotate synchronously, thereby driving the circuit boards at the multiple transport channel positions to be automatically transferred, and automatically transferred to the multiple transfer rollers 44 in the corresponding position inspection device 4; At the same time, the third motor 442 is controlled to start, and the transmission of the third sprocket transmission group 441 is coordinated to control the multiple transmission rollers 44 and the transmission drum 451 to rotate synchronously, so as to automatically transmit the circuit board in the transport inspection device 4, and the circuit board is transmitted to the multiple transfer wheels 453 on the multiple transfer members 45, corresponding to the position of the discharge slot 432; Step 3: Automatically detect the electrical variables and magnetic variables of the circuit boards in the multiple transport channels by using multiple detection devices 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 be extended and retracted, and the connecting frame 46 is driven to drive the multiple translation drive rods 457, the connecting plate 456 and the multiple driving racks 455 to slide in translation, thereby driving the multiple transfer wheels 453 to move to one side of the second transmission device 5, and automatically transferring the unqualified circuit boards on the multiple transfer wheels 453 to the conveyor belt 34 in the second transmission device 5 through the discharge trough 432 for automatic transmission, so as to subsequently inspect and repair the unqualified circuit boards; When the circuit board passes the inspection, 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 circuit board processing, thereby realizing automatic classification and transmission of qualified and unqualified products after the circuit board inspection.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 loading device (2) is fixedly mounted at the middle of the top of the base (1); two loading devices (2) are symmetrically arranged, and a first transmission device (3) is arranged between the two loading devices (2); a transport and inspection device (4) is fixedly mounted on the side of the top of the base (1) away from the first transmission device (3); and a second transmission device (5) is fixedly mounted on the side of the top of the base (1) close to the transport and inspection device (4); The feeding device (2) comprises two symmetrically distributed first longitudinal frames (21), the first longitudinal frames (21) being fixedly mounted on the top of the base (1), the top and bottom of the first longitudinal frames (21) being rotatably mounted with a feeding shaft (22), the bottom of the first longitudinal frames (21) being fixedly mounted with a first motor (223), the driving end of the first motor (223) and one end of the feeding shaft (22) being fixedly mounted, both ends of the feeding shaft (22) being fixedly mounted with a feeding sprocket (221), the outer side of the feeding sprocket (221) at the same end position on the feeding shaft (22) being meshedly connected with a feeding chain (222), and a plurality of uniformly distributed material transmission components (23) being fixedly mounted on the two feeding chains (222); The material transfer members (23) at the same horizontal position in the two feeding devices (2) form a transport channel.

2. A circuit board detection device according to claim 1, characterized in that: The material transfer member (23) comprises a first cross frame (231), the two ends of the first cross frame (231) are respectively fixedly mounted on corresponding feeding chains (222), a plurality of evenly distributed material transfer wheels (232) are rotatably mounted on the first cross frame (231), a first gear (233) is fixedly mounted on the shaft end of the material transfer wheel (232), and the rotation direction of the material transfer wheel (232) is arranged perpendicular to the rotation direction of the feeding shaft (22).

3. A circuit board detection device according to claim 2, characterized in that: An auxiliary inner frame (24) is fixedly mounted between the two first longitudinal frames (21); the auxiliary inner frame (24) is provided with a plurality of drive groups corresponding to the transport channels; the drive groups include a plurality of drive shafts (241) corresponding to the material transfer wheels (232); the drive shafts (241) are rotatably mounted on the auxiliary inner frame (24); a second gear (242) is fixedly mounted on one end of the drive shaft (241); the second gear (242) is meshingly connected to the corresponding first gear (233); and a first sprocket transmission group (233) is provided on a side of the drive group away from the second gear (242). 243), the first sprocket transmission group (243) includes a plurality of first sprockets corresponding to the drive shaft (241) and a first chain meshed on the outside of the plurality of first sprockets, the first sprockets are respectively fixedly mounted on the ends of the corresponding drive shafts (241), a second sprocket transmission group (244) is provided on the side of the plurality of drive groups away from the second gear (242), the second sprocket transmission 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 mounted on the ends of the drive shafts (241) in the corresponding drive groups.

4. A circuit board detection device according to claim 3, characterized in that: A second motor (245) is fixedly mounted in the middle of one side of the auxiliary inner frame (24), and a driving end of the second motor (245) and an end of one of the driving shafts (241) are fixedly mounted.

5. A circuit board detection device according to claim 4, characterized in that: The transport inspection device (4) comprises a plurality of second longitudinal frames (41), wherein the second longitudinal frames (41) are fixedly mounted on the top of the base (1), and a plurality of transport inspection mechanisms (42) corresponding to the transport channels are fixedly mounted on the top of the second longitudinal frames (41), wherein the plurality of transport inspection mechanisms (42) are stacked and mounted, and the transport inspection mechanisms (42) comprise two symmetrically distributed transport inspection side frames (43), wherein the transport inspection mechanisms (42) are fixedly mounted on the top of the second longitudinal frames (41) via the transport inspection side frames (43), and the two transport inspection side frames (43) are A detection device (431) for automatically detecting the electrical and magnetic variables of the circuit board is fixedly installed on the top; a plurality of transmission rollers (44) are rotatably installed on the bottom of the two inspection and transport side frames (43); a plurality of transfer members (45) are rotatably installed at the middle position of the bottom of the two inspection and transport side frames (43); the rotation direction of the transmission rollers (44) and the transfer members (45) is the same as the rotation direction of the material transfer wheel (232); and a material discharge groove (432) is provided on the inspection and transport side frame (43) close to the side of the second transmission device (5).

6. A circuit board detection device according to claim 5, characterized in that: The transfer member (45) comprises a transmission drum (451), wherein the transmission drum (451) is rotatably mounted on the bottom of the transport and inspection side frame (43), wherein a plurality of evenly distributed transfer groups are arranged in the transmission drum (451), wherein the transfer groups comprise a plurality of rotating seats (452) distributed in a ring array, wherein the rotating seats (452) are fixedly mounted on the inner wall of the transmission drum (451), wherein transfer wheels (453) are rotatably mounted on the rotating seats (452), wherein the rotation direction of the transfer wheels (453) is perpendicular to the rotation direction of the transmission roller (44), wherein the outside of the transfer wheels (453) extends out of the outside of the transmission drum (451), wherein a third gear (454) is fixedly mounted on the shaft end of the transfer wheel (453), and a driving rack (455) is meshedly connected to the outside of the third gears (454) at the same position in the plurality of transfer groups. A connecting plate (456) is fixedly installed between the plurality of driving racks (455), a translation driving rod (457) is fixedly installed in the middle of two of the connecting plates (456), the translation driving rod (457) is movably clamped in the middle of the transmission drum (451), a connecting frame (46) is provided at the outer bottom of the transport and 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 axial end of the transmission drum (451) and is fixedly clamped in the middle of the corresponding connecting bearing (461), an L-shaped frame (462) is fixedly installed on the outer wall of the transport and inspection side frame (43) close to the connecting frame (46), an electric telescopic rod (463) is fixedly installed on the L-shaped frame (462), and the driving end of the electric telescopic rod (463) and the connecting frame (46) are fixedly installed.

7. A circuit board detection device according to claim 6, characterized in that: A third sprocket transmission group (441) is provided at the shaft ends of the plurality of transmission rollers (44) and the transmission drum (451). The third sprocket transmission group (441) includes a plurality of third sprockets corresponding to the transmission rollers (44) and the transmission drum (451) and a third chain meshed with the outer sides of the plurality of third sprockets. The third sprockets are respectively fixedly mounted on the shaft ends of the corresponding transmission rollers (44) and the transmission drum (451). A third motor (442) is fixedly mounted on the outer side of the transport inspection side frame (43). The driving end of the third motor (442) is fixedly mounted on the shaft end of one of the transmission rollers (44).

8. A circuit board detection device according to claim 7, characterized in that: The first transmission device (3) comprises two groups of transmission side frames (31) which are symmetrically distributed. The transmission side frames (31) are fixedly mounted on the top of the base (1). A transmission shaft (32) is rotatably mounted on the top of each group of the transmission side frames (31). The rotation direction of the transmission shaft (32) is the same as the rotation direction of the material transfer wheel (232). Transmission wheels (33) are fixedly mounted on both ends of the transmission shaft (32). A transmission belt (34) is provided on the outer movable sleeves of the two transmission wheels (33) on the same side. A fourth motor (35) is fixedly mounted on the top of one of the transmission side frames (31). The driving end of the fourth motor (35) and the end of one of the transmission shafts (32) are fixedly mounted.

9. A circuit board detection device according to claim 8, characterized in that: The second transmission device (5) comprises a plurality of third longitudinal frames (51), the third longitudinal frames (51) being fixedly mounted on the top of the base (1), a plurality of second transmission members (52) corresponding to the transport inspection mechanism (42) being fixedly mounted on the top of the third longitudinal frames (51), one end of the second transmission member (52) corresponding to the position of the discharge slot (432) in the transport inspection mechanism (42), the plurality of second transmission members (52) being stacked and mounted, the structure of the second transmission member (52) being the same as the structure of the first transmission device (3), the rotation direction of the transmission shaft (32) in the second transmission member (52) being arranged perpendicular to the rotation direction of the material transfer wheel (232).

10. A method for using the circuit board detection device according to claim 9, characterized in that: The steps include: Step 1: synchronously control and start the first motors (223) in the feeding devices (2) on both sides, drive the feeding shafts (22) in the feeding devices (2) on both sides to rotate synchronously in the opposite direction, 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 material transmission members (23) on both sides to move upward synchronously. During the synchronous upward movement of the material transmission members (23), when the positions of the transport channel and the transport inspection mechanism (42) correspond, the second gear (242) and the corresponding first gear (233) are meshed and connected; Step 2: by controlling the fourth motor (35) to start, drive one of the transmission shafts (32) and the transmission wheel (33) to rotate, thereby controlling the transmission belts (34) on both sides to perform synchronous transmission, placing the circuit board to be tested on the transmission belts (34) on both sides, and controlling the circuit board to move to the position of the feeding device (2) through the synchronous transmission of the transmission belts (34) on both sides, and sequentially moving the plurality of circuit boards to be tested to the plurality of feeding wheels (232) in each group of feeding members (23), automatically feeding the circuit boards to be tested, and controlling the upward transmission of the circuit boards to be tested through the synchronous upward movement of the feeding members (23); When the plurality of circuit boards to be inspected are transferred upward to a suitable position, the second motor (245) is controlled to be turned on to drive one of the drive shafts (241) to rotate, and the transmission of the second sprocket transmission group (244) and the transmission of the first sprocket transmission group (243) are used in conjunction to synchronously drive the plurality of drive shafts (241) to rotate, thereby driving the corresponding plurality of first gears (233) to rotate synchronously through the second gear (242), thereby controlling the plurality of material transfer wheels (232) at the plurality of transport channel positions to rotate synchronously, thereby driving the circuit boards at the plurality of transport channel positions to be automatically transferred and automatically transferred to the plurality of transfer rollers (44) in the corresponding position transport inspection device (4); At the same time, the third motor (442) is controlled to start, and the transmission of the third sprocket transmission group (441) is coordinated to control the multiple transmission rollers (44) and the transmission drum (451) to rotate synchronously, so as to automatically transmit the circuit board in the transport inspection device (4), and the circuit board is transmitted to the multiple transfer wheels (453) on the multiple transfer members (45), corresponding to the position of the discharge slot (432); Step 3: Automatically detect the electrical variables and magnetic variables of the circuit boards in the multiple transport channels by using multiple detection devices (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 be extended and retracted, and the connecting frame (46) is driven to drive the multiple translation drive rods (457), the connecting plate (456) and the multiple driving racks (455) to slide in translation, thereby driving the multiple transfer wheels (453) to move to one side of the second transmission device (5), and automatically transferring the unqualified circuit boards on the multiple transfer wheels (453) to the conveyor belt (34) in the second transmission device (5) through the discharge trough (432) for automatic transfer, so that the unqualified circuit boards can be subsequently repaired; When the circuit board passes the inspection, the circuit board in the inspection and transmission device (4) continues to be transmitted, and the qualified circuit board after the inspection is automatically transmitted out of the inspection and transmission device (4) for subsequent processing of the circuit board, thereby realizing automatic classification and transmission of qualified and unqualified products after the circuit board inspection.

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