Detection device

Abstract

The embodiment of the invention relates to the technical field of processing equipment, and particularly discloses a detection device which comprises a rack, a first transmission mechanism and a projection mechanism, the first transmission mechanism is arranged on the rack, the first transmission mechanism is provided with a detection station, the first transmission mechanism is used for transmitting a to-be-detected object to the detection station, and the projection mechanism is used for projecting the to-be-detected object to the detection station. The projection mechanism is arranged on the machine frame, the projection mechanism is arranged on one side of the detection station, and the projection mechanism is used for projecting a preset image to the to-be-detected object on the detection station. By comparing the preset image with the to-be-detected object, whether the to-be-detected object has the preset defect or not is judged, automatic or semi-automatic detection of the to-be-detected object is achieved, and the detection efficiency and accuracy are improved.

Description

Technical Field

[0001] This application relates to the field of processing equipment technology, and in particular to a detection device. Background Technology

[0002] With the rapid development of the electronics industry, PCBs (Printed Circuit Boards), as core components of electronic products, directly affect the performance and reliability of these products due to the quality of their surface processing. In the PCB manufacturing process, after key steps such as PCB soldering, component mounting, and surface coating, defect detection on the PCB surface is particularly important. Currently, PCB surface defect detection methods mainly rely on manual visual inspection. This method is not only inefficient and prone to missed or false detections due to human factors, but also relatively costly on large-scale production lines. Summary of the Invention

[0003] In view of the above problems, embodiments of this application provide a detection device that overcomes or at least partially solves the above problems.

[0004] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a detection device, including a frame, a first transmission mechanism and a projection mechanism, wherein the first transmission mechanism is disposed on the frame and has a detection station, and the first transmission mechanism is used to convey the object to be tested to the detection station; the projection mechanism is disposed on the frame and is disposed on one side of the detection station, and the projection mechanism is used to project a preset image onto the object to be tested on the detection station.

[0005] In some embodiments, the projection mechanism includes a support and a projector. The support is disposed on the frame, and the projector is movably connected to the support. The projector is used to project the preset image onto the object to be tested at the detection station.

[0006] In some embodiments, the first transmission mechanism includes a first conveyor belt and a first drive assembly, wherein the first conveyor belt is used to carry the object to be tested, and the first drive assembly can drive the first conveyor belt to move relative to the frame.

[0007] In some embodiments, the detection device further includes a first limiting mechanism disposed on one side of the first transmission mechanism, the first limiting mechanism being used to lock the object to be tested at the detection station.

[0008] In some embodiments, the first limiting mechanism includes a first limiting block and a first limiting drive member. The first limiting block is connected to the first limiting drive member, and the first limiting drive member can drive the first limiting block to move between a first locked position and a first unlocked position. When the first limiting block is in the first locked position, the first limiting block can lock the object to be tested at the detection station.

[0009] In some embodiments, the detection device further includes a flipping mechanism disposed on the frame, the flipping mechanism being used to drive the object to be tested on the detection station to rotate.

[0010] In some embodiments, the flipping mechanism includes a rotating frame and a pressing member. The rotating frame is rotatably disposed on the frame, and the pressing member and the first transmission mechanism are respectively disposed on the rotating frame. The pressing member is used to abut against the object to be tested of the first transmission mechanism, and the rotating frame can drive the first transmission mechanism to rotate relative to the frame.

[0011] In some embodiments, the flipping mechanism includes a flipping drive assembly connected to the rotating frame, the flipping drive assembly being able to drive the rotating frame to rotate relative to the frame, and / or, the flipping mechanism further includes a pressing drive member connected to the pressing member, the pressing drive member being able to drive the pressing member to move relative to the rotating frame such that the pressing member can press against the object to be tested.

[0012] In some embodiments, the detection device further includes a second transmission mechanism disposed on the frame, the second transmission mechanism being used to transfer the object to be tested transmitted by the first transmission mechanism.

[0013] In some embodiments, the second transmission mechanism includes a rail and a second drive assembly, the rail being used to carry the object to be tested, and the drive assembly being used to drive the object to be tested to move along the rail.

[0014] In some embodiments, the second transmission mechanism is provided with a lifting station, and the detection device further includes a lifting mechanism for transferring the object to be tested on the lifting station.

[0015] In some embodiments, the lifting mechanism includes a lifting frame and a lifting drive, the lifting frame being connected to the lifting drive, and the lifting drive being capable of driving the lifting frame to move relative to the second transmission mechanism.

[0016] In some embodiments, the detection device further includes a second limiting structure disposed on one side of the second transmission mechanism, the second limiting structure being used to lock the object to be tested at the lifting station.

[0017] In some embodiments, the second limiting mechanism includes a second limiting block and a second limiting drive member. The second limiting block is connected to the second limiting drive member, and the second limiting drive member can drive the second limiting block to move between a second locked position and a second unlocked position. When the second limiting block is in the second locked position, the second limiting block can lock the object to be tested in the lifting position.

[0018] The beneficial effects of this application embodiment are as follows: Unlike existing technologies, this application embodiment provides a detection device, including a frame, a first transmission mechanism, and a projection mechanism. The first transmission mechanism is disposed on the frame and has a detection station. The first transmission mechanism is used to convey the object to be tested to the detection station. The projection mechanism is disposed on the frame and on one side of the detection station. The projection mechanism is used to project a preset image onto the object to be tested on the detection station. By comparing the preset image with the object to be tested, it is determined whether the object to be tested has a preset defect, thus achieving automated or semi-automated detection of surface defects in the object to be tested, improving detection efficiency and accuracy. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0020] Figure 1 This is a perspective view of the detection device provided in the embodiments of this application; Figure 2 This is a cross-sectional view of the detection device provided in the embodiments of this application; Figure 3 This is an exploded enlarged view of the first transmission mechanism, the first limiting mechanism, and the flipping mechanism provided in the embodiments of this application; Figure 4 This is an exploded enlarged view of the second transmission mechanism, lifting mechanism, and second limiting mechanism provided in the embodiments of this application; Figure 5 This is a three-dimensional enlarged view of the second transmission mechanism, the lifting mechanism, and the second limiting mechanism provided in the embodiments of this application. Detailed Implementation

[0021] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0023] Please see Figures 1 to 3 The testing device 1000 includes a frame 1, a first transmission mechanism 2, and a projection mechanism 3, both of which are mounted on the frame 1. The first transmission mechanism 2 has a testing station and is used to transport the object to be tested to the testing station. The projection mechanism 3 is located on one side of the testing station and is used to project a preset image onto the object to be tested at the testing station, thereby comparing the preset image with the surface of the object to be tested to determine whether a preset defect exists on the surface.

[0024] In some embodiments, the object under test (DUT) refers to any processed component that requires surface inspection. In one example, the DUT is a PCB semi-finished product after the soldering process.

[0025] In some embodiments, the preset image refers to a preset defect image formed by capturing an image of the object under test before it enters the first transmission mechanism 2 using an imaging device such as an AOI (Automated Optical Inspection) device, comparing the captured image with a preset good product image, and extracting the difference areas. These difference areas represent possible defect features on the surface of the object under test, such as insufficient solder, excessive solder, short circuit, open circuit, poor solder joint, foreign matter residue, etc.

[0026] In some embodiments, the test surface of the object to be tested is compared manually with a preset defect image to determine whether the preset defect in the preset image exists on the test surface, and the test results are recorded.

[0027] When inspecting the soldering results of PCB semi-finished products after the soldering process, a preset defect image is obtained by comparing the image of the solder surface of the PCB semi-finished product with a preset good product image during the formation of the corresponding preset image, thus completing the preliminary inspection of the PCB semi-finished product. Since this preliminary inspection is based on preset algorithms and parameters, some subtle, complex, or deceptive defects may be misjudged or missed. For example, the morphology of some solder defects may be very similar to normal solder traces in the image, or the image may be unclear due to factors such as lighting or shooting angle, which may affect the accuracy of the preliminary inspection. Therefore, after completing the preliminary inspection and forming the preset image, to further improve the accuracy and reliability of the inspection, this application projects the preset image onto the solder surface of the PCB semi-finished product at the inspection station using a projection mechanism 3. The operator then performs a secondary comparison inspection using direct visual inspection, visual magnification equipment, or auxiliary analysis software to complete the re-judgment of the PCB semi-finished product.

[0028] For rack 1 described above, please refer to some embodiments. Figure 1 and Figure 2 The frame 1 includes an upper frame 11, a lower frame 12 and a connecting column 13. The two ends of the connecting column 13 are connected to the upper frame 11 and the lower frame 12 respectively. The upper frame 11 and the lower frame 12 are arranged at intervals and opposite to each other. The projection mechanism 3 is arranged on the side of the upper frame 11 facing the lower frame 12, and the first transmission mechanism 2 is arranged on the side of the lower frame 12 facing the upper frame 11.

[0029] Regarding the first transmission mechanism 2 described above, please refer to some embodiments. Figure 2 and Figure 3 The first transmission mechanism 2 includes a first conveyor belt 21 and a first drive assembly 22. The first conveyor belt 21 is provided with a detection station and is used to carry the object to be tested. The first drive assembly 22 can drive the first conveyor belt 21 to move relative to the frame 1 along the length direction of the first conveyor belt 21, thereby moving the object to be tested.

[0030] In some embodiments, please refer to Figure 3 The first drive assembly 22 includes a first motor 221 and a transmission wheel 222. The transmission wheel 222 is connected to the first conveyor belt 21, and the first motor 221 is connected to the transmission wheel 222. The first motor 221 drives the transmission wheel 222 to rotate, thereby driving the first conveyor belt 21 to move, and in turn driving the object to be tested on the first conveyor belt 21 to move. When the object to be tested on the first conveyor belt 21 moves to the detection station, the projection mechanism 3 can project a preset image onto the object to be tested.

[0031] In some embodiments, there are two first conveyor belts 21, which are arranged in parallel and spaced apart. The first drive assembly 22 also includes a first drive shaft 223 and a synchronous belt 224. The first drive shaft 223 is connected to the output shaft of the first motor 221, and both ends of the first drive shaft 223 are respectively connected to the drive wheel 222 via the synchronous belt 224, thereby being connected to the two conveyor belts respectively.

[0032] Regarding the projection mechanism 3 described above, please refer to some embodiments. Figure 2 The projection mechanism 3 includes a projector 32 and a support 31. The projector 32 is used to project a preset image onto the object to be tested at the testing station. The support 31 is mounted on the frame 1, and the projector 32 is movably connected to the support 31 to adjust the projection angle of the projector 32 and improve the accuracy of the correspondence between the preset image and the object to be tested.

[0033] In some embodiments, the projection mechanism 3 further includes an adjusting screw (not shown). The bracket 31 is provided with a connecting hole, and the projector 32 is provided with a screw hole. The adjusting screw is used to pass through the connecting hole and then screw into the screw hole to detachably connect the projector 32 to the bracket 31. When it is necessary to adjust the angle or position of the projector 32 relative to the first conveyor belt 21, the adjusting screw can be unscrewed from the screw hole, the position and angle of the projector 32 can be adjusted, and then the adjusting screw can be passed through the connecting hole and re-screwed into the screw hole to fix the adjusted position of the projector 32.

[0034] In some embodiments, please refer to Figure 2 and Figure 3 The detection device 1000 also includes a first limiting mechanism 4, which is disposed on one side of the first transmission mechanism 2. The first limiting mechanism 4 is used to lock the object to be tested at the detection station, thereby realizing the positioning of the object to be tested at the detection station.

[0035] In some embodiments, the first limiting mechanism 4 includes a first limiting block 41 and a first limiting drive member 42. The first limiting block 41 is connected to the first limiting drive member 42. The first limiting drive member 42 is used to drive the first limiting block 41 to move closer to or further away from the detection station, so as to move between a first locked position and a first unlocked position, thereby flexibly limiting the object to be tested on the detection station.

[0036] When it is necessary to lock the object under test at the inspection station, the first limit drive 42 drives the first limit block 41 to move to the first locking position. The first limit block 41 gradually approaches the inspection station until it reaches the side of the object under test facing the direction of movement of the first conveyor belt 21. At this time, the first limit block 41 is in the first locking position, and the object under test is held at the inspection station. When it is necessary to unlock the object under test from the inspection station, the first limit drive 42 drives the first limit block 41 to move from the first locking position to the first unlocking position. The first limit block 41 gradually moves away from the inspection station until it does not overlap with the object under test in the direction of movement of the first conveyor belt 81. At this time, the first limit block 41 is in the first unlocking position, and the object under test can be driven to move by the first transmission mechanism 2.

[0037] In some embodiments, the first limiting drive 42 is a cylinder.

[0038] In some embodiments, please refer to Figure 2 and Figure 3 The detection device 1000 also includes a flipping mechanism 5, which is located on the lower frame 12. The flipping mechanism 5 is used to rotate the object to be tested on the detection station to adjust the angle of the object to be tested relative to the projector 32, so that the object to be tested corresponds to the projected image and improves the accuracy of the detection.

[0039] In some embodiments, the object to be tested has multiple test surfaces. By rotating the object to be tested through the flipping mechanism 5, different test surfaces can be detected, thereby improving the practicality and working efficiency of the detection device 1000.

[0040] In some embodiments, the flipping mechanism 5 includes a rotating frame 51 and a pressing member 52. The rotating frame 51 is rotatably disposed on the lower frame 12. The pressing member 52 is disposed on the rotating frame 51 and is used to abut against the object to be tested of the first transmission mechanism 2, so that the object to be tested is fixed on the rotating frame 51, thereby improving the stability of the object to be tested when flipping.

[0041] In some embodiments, the first transmission mechanism 2 is disposed on the rotating frame 51 and integrated into the flipping mechanism 5. This not only helps to save space but also optimizes the transmission path of the object to be tested, reduces the number of transfer steps between different mechanisms, and lowers the risk of damage to the object caused by multiple transfers.

[0042] In some embodiments, the flipping mechanism 5 further includes a flipping drive assembly 53, which is connected to the rotating frame 51 and can drive the rotating frame 51 to rotate relative to the lower frame 12.

[0043] In some embodiments, the flipping drive assembly 53 includes a rotary motor 531 and a coupling 532, which are disposed on the lower frame 12. Rotary shafts 511 are provided on opposite sides of the rotating frame 51, wherein one rotating shaft 511 is rotatably connected to the lower frame 12, and the other rotating shaft 511 is connected to the rotary motor 531 via the coupling 532. The rotary motor 531 drives the rotating frame 51 to rotate, thereby causing the first transmission mechanism 2 and the object to be measured to rotate.

[0044] In some embodiments, the flipping mechanism 5 further includes a pressing drive 54, which is disposed on the rotating frame 51 and connected to a pressing member 52. The pressing drive 54 can drive the pressing member 52 to move relative to the rotating frame 51 so that the pressing member can press against the object to be tested.

[0045] In some embodiments, the pressure drive 54 is a cylinder.

[0046] In some embodiments, the flipping mechanism 5 further includes a connecting bracket 55 disposed on the rotating frame 51, and a pressing member 52 slidably disposed on the connecting bracket 55, thereby adjusting the position of the pressing member 52 against the object to be tested. The connecting bracket 55 is connected to a pressing drive member 54, which drives the connecting bracket 55 to move the pressing member 52 closer to or away from the object to be tested.

[0047] In some embodiments, the number of pressing members 52 is one or more.

[0048] It is understood that in some embodiments, the surface to be tested of the object entering the first transmission mechanism 2 is located on the side of the object facing away from the projector 32. Therefore, when the object moves to the detection station, the first transmission mechanism 2 and the object need to be flipped by the flipping mechanism 5 so that the surface to be tested faces the projector 32. Specifically, as the object gradually approaches the detection station under the drive of the first conveyor belt 21, the first limiting drive member 42 drives the first limiting block 41 to move towards the detection station, locking the object to be tested at the detection station. At the same time, the pressing drive member 54 drives the pressing member 52 to press against the surface of the object to be tested, so as to fix the object to be tested to the rotating frame 51. Then, the flipping drive assembly 53 drives the rotating frame 51 and the first transmission mechanism 2 and the object to be tested on the rotating frame 51 to start flipping. When the rotating frame 51 flips the object to be tested to a preset angle so that the surface to be tested is accurately facing the projector 32, the flipping drive assembly 53 stops working.

[0049] In some embodiments, please refer to Figure 2 , Figure 4 and Figure 5The detection device 1000 also includes a second transmission mechanism 6, which is disposed on the frame 1. Along the conveying direction of the first transmission mechanism 2, the second transmission mechanism 6 is located at one end of the first transmission mechanism 2. The second transmission mechanism 6 is used to transfer the object to be tested transmitted by the first transmission mechanism 2.

[0050] In some embodiments, the second transmission mechanism 6 includes a rail 61 and a second drive assembly 62. The rail 61 carries the object to be tested, and the second drive assembly 62 drives the object to be tested to move along the rail 61. The rail 61 provides stable structural support for the movement of the object, improving the stability of the transmission.

[0051] In some embodiments, the length direction of the track 61 is the same as the length direction of the first conveyor belt 21.

[0052] In some embodiments, there are two rails 61, which are arranged in parallel and spaced apart, and each rail 61 is provided with a lifting station.

[0053] In some embodiments, the second transmission mechanism 6 further includes two transmission chains (not shown), one transmission chain being disposed on a rail 61 and extending along the length direction of the rail 61, and the second drive assembly 62 being used to drive the transmission chain to move along the length direction of the rail 61, thereby the transmission chain carrying the components to move along the rail 61.

[0054] In some embodiments, the second drive assembly 62 includes a second motor 621, a second drive shaft 622, and a sprocket 623. Sprockets 623 are respectively fitted onto both ends of the second drive shaft 622, and the sprockets 623 are connected to the conveyor chains. The second motor 621 is connected to the second drive shaft 622. The second motor 621 drives the second drive shaft 622 to rotate, thereby driving the two conveyor chains to rotate synchronously via the sprockets 623.

[0055] In some embodiments, please refer to Figure 4 and Figure 5 The second transmission mechanism 6 also includes a slide rod 63 and a connecting seat 64. The connecting seat 64 is connected to the rail 61. The slide rod 63 is disposed between the two rails 61. Both ends of the slide rod 63 are connected to the connecting seat 64 respectively. The slide rod 63 is slidably connected to the connecting seat 64 at least at one end, so that one rail 61 can move closer to or further away from the other rail 61, thereby adjusting the width between the rails 61 to accommodate objects of different sizes.

[0056] In some embodiments, please refer to Figure 2 , Figure 4 and Figure 5 The testing device 1000 also includes a lifting mechanism 7, which is used to transfer the object to be tested from the lifting station.

[0057] In some embodiments, the lifting mechanism 7 is disposed between two rails 61, and the lifting mechanism 7 is used to lift the object to be tested on the lifting station from the rails 61.

[0058] After the object under test completes projection detection in the first transmission mechanism 2, it enters the second transmission mechanism 6. If it is determined that the object under test does not have a preset defect, it is conveyed along the track 61 to the next station. If it is determined that the object under test has a preset defect, the lifting mechanism 7 lifts the object out of the second transmission mechanism 6. The coordinated operation of the lifting mechanism 7 and the second transmission mechanism 6 realizes the automated sorting of objects under test.

[0059] In some embodiments, the lifting mechanism 7 includes a lifting frame 71 and a lifting drive 72. The lifting frame 71 is located between two rails 61 and is connected to the lifting drive 72. The lifting drive 72 is used to drive the lifting frame 71 to move in the vertical direction of the lifting position.

[0060] In some embodiments, please refer to Figure 4 and Figure 5 The lifting frame 71 includes a first side plate 711, a second side plate 712, a base plate 713, and a support rod 714. The base plate 713 and the support rod 714 are positioned opposite each other along the vertical direction of the lifting position. Both ends of the base plate 713 are connected to one end of the first side plate 711 and one end of the second side plate 712, respectively. Both ends of the support rod 714 are connected to the ends of the first side plate 711 and the second side plate 712 away from the base plate 713, respectively. The first side plate 711, base plate 713, second side plate 712, and support rod 714 sequentially form a rectangular hollow structure. The drive shaft and slide rod 63 are located between the support rod 714 and the base plate 713, thus the second transmission mechanism 6 and the lifting mechanism 7 are staggered, which helps save space and makes the structure of the detection device 1000 more compact.

[0061] In some embodiments, the lifting drive 72 is a cylinder.

[0062] In some embodiments, please refer to Figure 2 , Figure 4 and Figure 5The lower frame 12 has a cavity 120, and a support plate 121 covers the side of the cavity 120 facing the upper frame 11. A lifting drive 72 and a base plate 713 are located within the cavity 120, and a support rod 714 is located on the side of the support plate 121 facing away from the cavity 120. The support plate 121 has a first through hole 1211 and a second through hole 1212. A first side plate 711 passes through the first through hole 1211, and a second side plate 712 passes through the second through hole 1212, allowing the lifting frame 71 to move up and down relative to the support plate 121. One end of the lifting drive 72 is connected to the side of the support plate 121 facing the cavity 120, and the end of the lifting drive 72 facing away from the support plate 121 has a telescopic shaft connected to the base plate 713. When the telescopic shaft of the lifting drive component 72 retracts in the direction toward the support plate 121, the telescopic shaft drives the base plate 713 to move toward the support plate 121, thereby driving the first side plate 711, the second side plate 712 and the support rod 714 to rise synchronously, so that the lifting frame 71 is lifted upward as a whole.

[0063] In some embodiments, the lifting mechanism 7 further includes a second conveyor belt 73 and a third motor 74. The second conveyor belt 73 is disposed on the support rod 714 and is used to transport objects with a predetermined defect. The third motor 74 is connected to the second conveyor belt 73 and is used to drive the second conveyor belt 73 to move.

[0064] In some embodiments, the lifting mechanism 7 further includes a guide post 75 located within the cavity 120. One end of the guide post 75 abuts against the side of the support plate 121 facing the cavity 120, and the other end of the guide post 75 away from the support plate 121 is disposed on the base plate 713, which can slide along the guide post 75. The guide post 75 enhances the stability of the lifting frame 71 during movement.

[0065] In some embodiments, please refer to Figure 2 , Figure 4 and Figure 5 The detection device 1000 also includes a second limiting mechanism 8, which is located on one side of the second transmission mechanism 6. The second limiting mechanism 8 is used to lock the object to be tested at the lifting position, thereby realizing the positioning of the object at the lifting position.

[0066] In some embodiments, the second limiting mechanism 8 includes a second limiting block 81 and a second limiting drive member 82. The second limiting block 81 is connected to the second limiting drive member 82. The second limiting drive member 82 is used to drive the second limiting block 81 to move closer to or further away from the lifting station so as to move between a second locked position and a second unlocked position, thereby flexibly limiting the object on the lifting station.

[0067] When the second limiting block 81 is in the second unlocked position, the second limiting block 81 is away from the lifting station, the second limiting block 81 and the object to be tested do not overlap in the length direction of the rail 61, and the object to be tested can move along the rail 61. When it is necessary to lock the object to be tested in the lifting station, the second limiting drive 82 drives the second limiting block 81 to gradually approach the lifting station until the second limiting block 81 reaches the side of the object to be tested facing the length direction of the rail 61. At this time, the second limiting block 81 is in the second locked position, and the object to be tested is held in the lifting station.

[0068] In some embodiments, the second limiting drive 82 is a cylinder.

[0069] In some embodiments, the first limiting drive 42, the pressing drive 54, the lifting drive 72, and the second limiting drive 82 are all configured as cylinders and used to achieve lifting drive. Compared with the lifting method achieved by transmission structure such as motor and lead screw, the cylinder drive structure is simple, has a fast response speed, low cost, and is relatively easy to maintain, which reduces the manufacturing cost and maintenance difficulty of the detection device 1000.

[0070] In some embodiments, please refer to Figure 2 The detection device 1000 also includes a control circuit board 9, which is equipped with a control circuit. The control circuit is electrically connected to the first transmission mechanism 2, the projection mechanism 3, the flipping mechanism 5, the second transmission mechanism 6, and the lifting mechanism 7. The control circuit is used to regulate the operation of each mechanism.

[0071] In some embodiments, please refer to Figure 3 The first transmission mechanism 2 also includes a first sensor 23, which is disposed on one side of the first transmission belt and close to the starting end of the first conveyor belt 21. The first sensor 23 is used to detect whether the object to be tested has entered the first conveyor belt 21 and transmits the detection signal to the control circuit. After receiving the signal that the object to be tested has entered, the control circuit starts the first drive assembly 22 to drive the first conveyor belt 21 to transport the object to be tested to the detection station, thereby realizing automatic feeding and detection of the object to be tested.

[0072] In some embodiments, please refer to Figure 3 The first limiting mechanism 4 also includes a second sensor 43, which is disposed on one side of the detection station. The second sensor 43 is used to detect whether the object to be tested has reached the detection station and sends the detection signal to the control circuit. After receiving the signal that the object to be tested has reached the detection station, the control circuit controls the first limiting mechanism 4 to switch to the first locking state, keeping the object to be tested at the detection station so that the projection mechanism 3 can accurately project the preset image onto the surface of the object to be tested for comparison and detection.

[0073] In some embodiments, please refer to Figure 3 The detection device 1000 also includes a barcode scanner 91, which is slidably mounted on the connecting bracket 55 and is used to scan and identify the object to be tested.

[0074] In some embodiments, please refer to Figure 2 The detection device 1000 also includes an electrostatic device 92, which is disposed on the lower frame 12. The electrostatic device 92 is used to eliminate static electricity generated by friction or movement during the operation of the detection device 1000, thereby reducing the risk of damage to the object to be tested and the internal components of the detection device 1000 due to static electricity accumulation.

[0075] In some embodiments, please refer to Figure 1 and Figure 2 The inspection device 1000 also includes a status indicator light 93, which is located on the side of the upper frame 11 opposite to the lower frame 12. The status indicator light 93 displays the operating status of the inspection device 1000. The status indicator light 93 uses different colors or flashing frequencies to indicate the operating status of the inspection device 1000. In some examples, a solid green light indicates that the inspection device 1000 is operating normally, a flashing red light indicates that a preset defect has been detected or the device has malfunctioned, and a solid yellow light indicates that it is in standby mode. By observing the status indicator light 93, the operator can quickly understand the current status of the inspection device 1000, take timely action, and improve work efficiency and the smoothness of the inspection process.

[0076] In this embodiment, the detection device 1000 includes a frame 1, a first transmission mechanism 2, and a projection mechanism 3. The first transmission mechanism 2 and the projection mechanism 3 are disposed on the frame 1. The first transmission mechanism 2 is provided with a detection station. The first transmission mechanism 2 is used to transmit the object to be tested to the detection station. The projection mechanism 3 is used to project a preset image onto the object to be tested at the detection station so as to compare the preset image with the object to be tested, thereby determining whether the object to be tested has a preset defect. This realizes automated or semi-automated detection of surface defects of the object to be tested, improving detection efficiency and accuracy.

[0077] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A detection device, characterized in that, include: frame; A first transmission mechanism is disposed on the frame. The first transmission mechanism is provided with a detection station. The first transmission mechanism is used to transfer the object to be tested to the detection station. A projection mechanism is provided on the frame and is located on one side of the inspection station. The projection mechanism is used to project a preset image onto the object to be tested on the inspection station.

2. The detection device according to claim 1, characterized in that, The projection mechanism includes a support and a projector. The support is mounted on the frame, and the projector is movably connected to the support. The projector is used to project the preset image onto the object to be tested at the detection station.

3. The detection device according to claim 1, characterized in that, The first transmission mechanism includes a first conveyor belt and a first drive assembly. The first conveyor belt is used to carry the object to be tested, and the first drive assembly can drive the first conveyor belt to move relative to the frame.

4. The detection device according to claim 1, characterized in that, The detection device further includes a first limiting mechanism, which is disposed on one side of the first transmission mechanism and is used to lock the object to be tested at the detection station.

5. The detection device according to claim 4, characterized in that, The first limiting mechanism includes a first limiting block and a first limiting drive member. The first limiting block is connected to the first limiting drive member, and the first limiting drive member can drive the first limiting block to move between a first locked position and a first unlocked position. When the first limiting block is in the first locking position, the first limiting block can lock the object to be tested at the detection station.

6. The detection device according to claim 1, characterized in that, The detection device further includes a flipping mechanism, which is disposed on the frame and is used to drive the object to be tested on the detection station to rotate.

7. The detection device according to claim 6, characterized in that, The flipping mechanism includes a rotating frame and a pressing member. The rotating frame is rotatably mounted on the frame. The pressing member and the first transmission mechanism are respectively mounted on the rotating frame. The pressing member is used to press against the object to be tested by the first transmission mechanism. The rotating frame can drive the first transmission mechanism to rotate relative to the frame.

8. The detection device according to claim 7, characterized in that, The flipping mechanism includes a flipping drive assembly connected to the rotating frame, the flipping drive assembly being capable of driving the rotating frame to rotate relative to the frame; and / or The flipping mechanism further includes a pressing drive member connected to the pressing member. The pressing drive member can drive the pressing member to move relative to the rotating frame so that the pressing member can press against the object to be tested.

9. The detection device according to any one of claims 1-8, characterized in that, The detection device further includes a second transmission mechanism, which is disposed on the frame and is used to transfer the object to be tested transmitted by the first transmission mechanism.

10. The detection device according to claim 9, characterized in that, The second transmission mechanism includes a rail and a second drive assembly. The rail is used to carry the object to be tested, and the drive assembly is used to drive the object to be tested to move along the rail.

11. The detection device according to claim 9, characterized in that, The second transmission mechanism is equipped with a lifting station; The testing device also includes a lifting mechanism, which is used to transfer the object to be tested from the lifting station.

12. The detection device according to claim 11, characterized in that, The lifting mechanism includes a lifting frame and a lifting drive component. The lifting frame is connected to the lifting drive component, and the lifting drive component can drive the lifting frame to move relative to the second transmission mechanism.

13. The detection device according to claim 11, characterized in that, The detection device further includes a second limiting structure, which is disposed on one side of the second transmission mechanism. The second limiting structure is used to lock the object to be tested in the lifting position.

14. The detection device according to claim 13, characterized in that, The second limiting mechanism includes a second limiting block and a second limiting drive member. The second limiting block is connected to the second limiting drive member, and the second limiting drive member can drive the second limiting block to move between a second locked position and a second unlocked position. When the second limiting block is in the second locking position, the second limiting block can lock the object to be tested in the lifting position.

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