Visual detection device and mechanical watch processing detection method

Abstract

The invention relates to the technical field of visual detection, and discloses a visual detection device and a mechanical watch processing detection method. Mechanical watch shells needing to be detected are conveyed in the machine body in sequence, the visual detection lens conducts visual detection on the mechanical watch shells which sequentially pass through, meanwhile, the conveyed mechanical watch shells stay and are fixed on the detection table, then the detection table inclines, the visual detection lens above the detection table conducts visual detection again, and therefore the mechanical watch shells can be detected again. And then the detection table is reset, so that the normal direction of the high-reflection surface of the detection table deviates from the symmetry axis of the camera and the light source, and the specular reflection light is guided to the direction outside the camera, so that the mechanical watch shell on the detection table is not influenced by specular reflection or glare during visual detection, and a reflective component in mechanical watch processing is subjected to visual detection. The influence of specular reflection or glare is eliminated, stable and accurate image acquisition is ensured, the quality of visual detection is improved, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] This invention relates to the field of visual inspection technology, specifically to a visual inspection device and a method for inspecting the processing of mechanical watches. Background Technology

[0002] A visual inspection device is a machine vision system used to inspect products or components. It typically includes hardware (such as industrial cameras, light sources, and lenses) and software (image processing algorithms). Visual inspection devices can simulate human vision to identify, analyze, and detect defects or anomalies in products, thereby improving production efficiency and product quality. The core technologies of visual inspection devices include image processing, computer vision, and deep learning. These technologies work together to achieve real-time acquisition, processing, and analysis of product surface images, as well as automatic defect identification and classification. High-precision cameras capture images of parts, and image processing algorithms are used for preprocessing, feature extraction, and classification, ultimately achieving comprehensive inspection of industrial parts. In the manufacturing of mechanical watches, many defects that are invisible to the naked eye require the assistance of visual inspection devices for detection and judgment.

[0003] Currently, the visual inspection devices commonly used in watch manufacturing typically inspect the surface images of the watch case to determine whether there are any quality problems.

[0004] However, the following problems still exist: reflective components (such as polished watch cases) in the processing of mechanical watches are prone to mirror reflection or glare, which can interfere with image acquisition, reduce the quality of visual inspection, and affect the inspection results. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a visual inspection device and a method for inspecting the processing of mechanical watches. This device enables visual inspection of reflective components during the processing of mechanical watches, eliminating the effects of mirror reflection or glare, ensuring stable and accurate image acquisition, improving the quality of visual inspection, and enhancing the accuracy of inspection results. It solves the problem that reflective components (such as polished watch cases) in mechanical watch processing are prone to mirror reflection or glare, which interferes with image acquisition, reduces the quality of visual inspection, and affects the inspection results.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a visual inspection device, comprising a body, a detection mechanism disposed within the body, and an auxiliary mechanism disposed within the body, wherein the detection mechanism uses a visual inspection lens to perform visual inspection on each mechanical watch case that passes by in sequence; The auxiliary mechanism uses a testing platform to stop and fix each passing mechanical watch case in sequence. When the visual inspection lens performs visual inspection on the mechanical watch case on the testing platform, the testing platform is tilted so that the normal direction of its highly reflective surface deviates from the axis of symmetry between the camera and the light source, thereby guiding the mirror-reflected light in a direction other than the camera.

[0007] Preferably, the detection mechanism includes a track plate, which is fixedly installed inside the machine body. The track plate is symmetrically arranged in two parts, penetrating the machine body. Multiple transmission wheels are rotatably mounted on the track plate, symmetrically distributed on the two parts of the track plate, located between the two parts of the track plate, and symmetrically distributed on both sides of the track plate. Conveyor belts are tensioned on the transmission wheels on both sides of the track plate, symmetrically arranged on both sides of the track plate, and the width of the conveyor belts is adapted to the distance between the two parts of the track plate.

[0008] Preferably, pulleys are rotatably fitted on both sides of the track upright, and the pulleys are respectively poweredly connected to the conveyor wheels on both sides of the track upright. Multiple conveyor motors are fixedly installed inside the machine body, and belts are tensioned on the shafts of the conveyor motors on both sides and the pulleys on both sides. Multiple infrared photoelectric sensors are fixedly installed on both sides of the track upright, and the infrared photoelectric sensors are symmetrically distributed on both sides of the track upright. The infrared photoelectric sensors on both sides are adjacent to the two ends of the conveyor belts on both sides, and the infrared photoelectric sensors on each side are signal connected to the conveyor motors on each side.

[0009] Preferably, multiple suspensions are fixedly installed inside the machine body, and the suspensions are located above the track plate. Multiple vision inspection lenses are bolted to each suspension. The vision inspection lenses are respectively located above the conveyor belts on both sides and above the space between the two conveyor belts, so that the vision inspection lenses can visually inspect the mechanical watch case passing through the position on the two conveyor belts and the position between the two conveyor belts. A warning light is fixedly installed on the top of the machine body, and the three-color light of the warning light is used to display the operating status of the device.

[0010] Preferably, the auxiliary mechanism includes a base frame, which is fixedly mounted on the track plate. The base frame is located between the two conveyor belts on both sides. A connector is rotatably fitted on the base frame, and a detection platform is fixedly mounted on the connector. The top surface of the detection platform is at the same height as the conveyor track of the conveyor belt. The size of the detection platform is adapted to the spacing between the two conveyor belts on both sides. A sector gear is fixedly mounted at the bottom end of the connector. A deflection motor is fixedly mounted on the base frame, and a power gear is fixedly mounted on the shaft of the deflection motor. The power gear meshes with the sector gear.

[0011] Preferably, a front-end transfer rod is rotatably fitted to one side of the top of the testing platform. The length of the front-end transfer rod is greater than the distance between the testing platform and the conveyor belt on one side. A front-end servo motor is fixedly installed on the bottom surface of the testing platform. The front-end servo motor is poweredly connected to the front-end transfer rod. A receiving slot is opened at the end of the front-end transfer rod. A front-end pressure trigger is fixedly installed inside the front-end transfer rod. The pressure detection end of the front-end pressure trigger extends into the receiving slot of the front-end transfer rod.

[0012] Preferably, the top surface of the end of the front-end transfer rod is rotatably fitted with a front-end limiting frame, a front-end micro motor is fixedly mounted on the front-end transfer rod, the front-end micro motor is poweredly connected to the front-end limiting frame, the front-end micro motor is signal-connected to the front-end pressure trigger, and a front-end fixed electrically controlled telescopic rod is fixedly mounted on the front-end limiting frame. The extension rod of the front-end fixed electrically controlled telescopic rod passes through the front-end limiting frame, so that the front-end fixed electrically controlled telescopic rod and the front-end transfer rod cooperate to clamp and fix the mechanical watch case.

[0013] Preferably, a rear-end transfer rod is rotatably fitted on the other side of the top of the testing platform. The length of the rear-end transfer rod is greater than the distance between the testing platform and the conveyor belt on the other side. A rear-end servo motor is fixedly installed on the bottom surface of the testing platform. The rear-end servo motor is poweredly connected to the rear-end transfer rod. A receiving slot is opened at the end of the rear-end transfer rod. A rear-end pressure trigger is fixedly installed inside the rear-end transfer rod. The pressure detection end of the rear-end pressure trigger extends into the receiving slot of the rear-end transfer rod.

[0014] Preferably, the top surface of the rear end of the removing rod is rotatably fitted with a rear end limiting bracket, a rear end micro motor is fixedly mounted on the rear end removing rod, the rear end micro motor is poweredly connected to the rear end limiting bracket, the rear end micro motor is signal-connected to the rear end pressure trigger, and a rear end fixed electrically controlled telescopic rod is fixedly mounted on the rear end limiting bracket. The extension rod of the rear end fixed electrically controlled telescopic rod passes through the rear end limiting bracket, so that the rear end fixed electrically controlled telescopic rod and the rear end removing rod cooperate to clamp and fix the mechanical watch case.

[0015] A method for inspecting the processing of mechanical watches, using the aforementioned visual inspection device, includes the following steps: The mechanical watch cases to be inspected are placed sequentially on the conveyor belt on one side. The conveyor belt on one side carries the mechanical watch cases toward the inspection table. The visual inspection lens above the conveyor belt on one side performs an initial visual inspection on the mechanical watch cases. The front-end transfer rod, together with the front-end fixed electric telescopic rod, clamps and fixes the mechanical watch case after the initial visual inspection and moves it from the conveyor belt on one side to the inspection table. Then, the rear-end transfer rod and the rear-end fixed electric telescopic rod clamp and fix the mechanical watch case on the inspection table. The front-end transfer rod and the front-end fixed electric telescopic rod are then released from fixation and move away from the inspection position of the inspection table. The detection platform is tilted so that the visual inspection lens above the detection platform can perform visual inspection again, and then the detection platform is reset. The rear-end transfer rod and the rear-end fixed electronically controlled telescopic rod move the mechanical watch case after the second visual inspection to the conveyor belt on the other side. The visual inspection lens above the conveyor belt on the other side inspects and confirms the mechanical watch case. The mechanical watch case that has completed the inspection is moved out by the conveyor belt on the other side.

[0016] Compared with the prior art, the present invention provides a visual inspection device with the following advantages: 1. This visual inspection device sequentially transports the mechanical watch cases to be inspected within the machine body. The visual inspection lens performs visual inspection on each mechanical watch case that passes through in sequence. Simultaneously, the transported mechanical watch cases are fixed on the inspection table. Then, the inspection table is tilted, allowing the visual inspection lens above the inspection table to perform a second visual inspection. Afterward, the inspection table is reset so that the normal direction of its highly reflective surface deviates from the axis of symmetry between the camera and the light source. This directs the specular reflected light in a direction other than the camera, so that the visual inspection of the mechanical watch cases on the inspection table is not affected by specular reflection or glare. This allows for visual inspection of reflective parts in the mechanical watch manufacturing process, eliminating the influence of specular reflection or glare, ensuring stable and accurate image acquisition, improving the quality of visual inspection, and increasing the accuracy of inspection results.

[0017] 2. This visual inspection device, through the setting of warning lights, uses three-color lights to indicate the operating status of the visual inspection device to workers, which facilitates workers to react quickly when problems occur, thereby ensuring the stable operation of the device.

[0018] 3. This visual inspection device, through the setting of auxiliary mechanisms, uses the front and rear transfer rods on the inspection platform to transfer the mechanical watch case between the conveyor belts on both sides and the inspection platform, without affecting the tilting operation of the inspection platform itself. The simple structural design reduces the cost of the device, and the simple mechanical structure provides more stable operation, improving the stability of the visual inspection device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure distribution of the body of the present invention; Figure 2 This is a schematic diagram of the overall structure of the visual inspection device of the present invention; Figure 3 This is a schematic diagram of the detection mechanism of the present invention; Figure 4 This is a schematic diagram of the structural distribution at the conveyor belt of the present invention; Figure 5 This is a schematic diagram of the structural distribution at the visual inspection lens of the present invention; Figure 6 This is a schematic diagram of the auxiliary mechanism structure of the present invention; Figure 7 This is a schematic diagram of the structural distribution at the sector gear of the present invention; Figure 8 This is a schematic diagram of the structural distribution at the detection stage of the present invention; Figure 9 for Figure 8 Enlarged structural diagram at point A in the middle; Figure 10 for Figure 8 Enlarged structural diagram at point B.

[0020] In the diagram: 1. Body; 2. Detection mechanism; 21. Track plate; 22. Transmission wheel; 23. Conveyor belt; 24. Pulley; 25. Transmission motor; 26. Belt; 27. Infrared photoelectric sensor; 28. Suspension; 29. ​​Visual inspection lens; 210. Warning light; 3. Auxiliary mechanism; 31. Base frame; 32. Connector; 33. Detection table; 34. Sector gear; 35. Power gear; 36. Deflection motor; 37. Front-end transfer rod; 38. Front-end servo motor; 39. Front-end pressure trigger; 310. Front-end limit frame; 311. Front-end micro motor; 312. Front-end fixed electrically controlled telescopic rod; 313. Rear-end transfer rod; 314. Rear-end servo motor; 315. Rear-end pressure trigger; 316. Rear-end limit frame; 317. Rear-end micro motor; 318. Rear-end fixed electrically controlled telescopic rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] As described in the background section, there are shortcomings in the existing technology. In order to solve the above-mentioned technical problems, this application proposes a visual inspection device and a mechanical watch processing inspection method.

[0023] Example 1, a typical implementation of this application, such as Figure 1 As shown, a visual inspection device includes a body 1, an inspection mechanism 2 disposed within the body 1, and an auxiliary mechanism 3 disposed within the body 1. The inspection mechanism 2 uses a visual inspection lens 29 to perform visual inspection on each mechanical watch case that passes by in sequence. The auxiliary mechanism 3 uses the inspection platform 33 to stop and fix each mechanical watch case in turn. When the visual inspection lens 29 performs visual inspection on the mechanical watch case on the inspection platform 33, the inspection platform 33 is tilted so that the normal direction of its highly reflective surface deviates from the axis of symmetry between the camera and the light source, thereby directing the mirror-reflected light in a direction other than the camera.

[0024] When using this invention: Mechanical watch cases to be inspected are sequentially conveyed within the machine body 1. The visual inspection lens 29 performs visual inspection on each mechanical watch case that passes through in sequence. Simultaneously, the conveyed mechanical watch cases are fixed on the inspection table 33. Then, the inspection table 33 is tilted, allowing the visual inspection lens 29 above the inspection table 33 to perform a second visual inspection. Afterward, the inspection table 33 is reset so that the normal direction of its highly reflective surface deviates from the axis of symmetry between the camera and the light source. This directs the specular reflected light in a direction other than the camera, so that the mechanical watch cases on the inspection table 33 are not affected by specular reflection or glare during visual inspection. This allows for visual inspection of reflective parts in the mechanical watch manufacturing process, eliminating the influence of specular reflection or glare, ensuring stable and accurate image acquisition, improving the quality of visual inspection, and increasing the accuracy of the inspection results.

[0025] Example 2, as Figures 2-5As shown, the difference from the above embodiment is that the detection mechanism 2 includes a track plate 21. The track plate 21 is fixedly installed inside the machine body 1. The track plate 21 is symmetrically arranged in two parts. The track plate 21 passes through the machine body 1. Multiple transmission wheels 22 are rotatably fitted on the track plate 21. The transmission wheels 22 are symmetrically distributed on the two parts of the track plate 21. The transmission wheels 22 are located between the two parts of the track plate 21. The transmission wheels 22 are symmetrically distributed on both sides of the track plate 21. Conveyor belts 23 are tensioned on the transmission wheels 22 on both sides of the track plate 21. The transmission belts 23 are symmetrically arranged on both sides of the track plate 21. The width of the transmission belts 23 is adapted to the distance between the two parts of the track plate 21.

[0026] Furthermore, pulleys 24 are rotatably fitted on both sides of the track plate 21. The pulleys 24 are poweredly connected to the conveyor wheels 22 on both sides of the track plate 21. Multiple conveyor motors 25 are fixedly installed inside the machine body 1. The shafts of the conveyor motors 25 on both sides are tensioned with belts 26 on the pulleys 24 on both sides. Multiple infrared photoelectric sensors 27 are fixedly installed on both sides of the track plate 21. The infrared photoelectric sensors 27 are symmetrically distributed on both sides of the track plate 21. The infrared photoelectric sensors 27 on both sides are adjacent to the two ends of the conveyor belts 23 on both sides. The infrared photoelectric sensors 27 on each side are signal connected to the conveyor motors 25 on each side.

[0027] Furthermore, multiple suspensions 28 are fixedly installed inside the body 1. The suspensions 28 are located above the track plate 21. Multiple vision inspection lenses 29 are bolted to each suspension 28. The vision inspection lenses 29 are located above the conveyor belts 23 on both sides and above the area between the two conveyor belts 23, so that the vision inspection lenses 29 can visually inspect the mechanical watch case passing through the positions on the two conveyor belts 23 and the areas between the two conveyor belts 23. A warning light 210 is fixedly installed at the top of the body 1. The three-color light of the warning light 210 is used to display the operating status of the device.

[0028] Specifically, the warning light 210 is a three-color light with red, yellow and green. When the red light is on, the visual detection device is malfunctioning. When the yellow light is on, the visual detection device has a detection problem that needs to be confirmed. When the green light is on, the visual detection device is operating normally.

[0029] Furthermore, conveying equipment can be installed on both sides of the main body 1, so that the mechanical watch case can be automatically transferred into the visual inspection device and removed after inspection, thus forming an automated inspection and production line.

[0030] When the mechanical watch case is conveyed in the vision inspection device, the mechanical watch cases are placed one by one on the conveyor belt 23 on one side. The conveyor motor 25 on one side is started. The conveyor motor 25 drives the belt 26 to rotate. The belt 26 drives the pulley 24 to rotate. The pulley 24 drives the conveyor wheel 22 to rotate. The conveyor wheel 22 drives the conveyor belt 23 on one side to rotate, so that the conveyor belt 23 on one side moves the mechanical watch case. At the same time, the vision inspection lens 29 above the conveyor belt 23 on one side performs an initial vision inspection on the mechanical watch case on the conveyor belt 23 on one side. When the mechanical watch case at the front of the conveyor belt 23 on one side moves to the infrared photoelectric sensor 27, that is, when the mechanical watch case moves to the adjacent inspection table 33, the infrared photoelectric sensor 27 detects the presence of an obstruction and controls the conveyor belt 23 on one side to stop rotating. After the mechanical watch case at the front moves to the inspection table 33, the conveyor belt 23 on one side continues to run. Similarly, after the mechanical watch case on the testing platform 33 is moved to the conveyor belt 23 on the other side, the mechanical watch case blocks the infrared photoelectric sensor 27. The infrared photoelectric sensor 27 controls the conveyor motor 25 on the other side to run, and the conveyor motor 25 on the other side drives the conveyor belt 23 on the other side to rotate, so that the conveyor belt 23 on the other side moves the tested mechanical watch case out. The visual inspection lens 29 above the conveyor belt 23 on the other side performs visual inspection and confirmation on the mechanical watch case on the conveyor belt 23 on the other side. When the infrared photoelectric sensor 27 on the other side is not blocked, it will control the conveyor belt 23 on the other side to stop running.

[0031] Example 3, as Figures 6-10 As shown, the difference from the above embodiment is that the auxiliary mechanism 3 includes a base frame 31, which is fixedly installed on the track plate 21. The base frame 31 is located between the two conveyor belts 23 on both sides. A connector 32 is rotatably fitted on the base frame 31. A detection platform 33 is fixedly installed on the connector 32. The top surface of the detection platform 33 is at the same height as the conveying track of the conveyor belt 23. The size of the detection platform 33 is adapted to the spacing between the two conveyor belts 23 on both sides. A sector gear 34 is fixedly installed at the bottom of the connector 32. A deflection motor 36 is fixedly installed on the base frame 31. A power gear 35 is fixedly installed on the shaft of the deflection motor 36. The power gear 35 meshes with the sector gear 34.

[0032] Furthermore, a front-end transfer rod 37 is rotatably fitted on one side of the top of the testing platform 33. The length of the front-end transfer rod 37 is greater than the distance between the testing platform 33 and the conveyor belt 23 on one side. A front-end servo motor 38 is fixedly installed on the bottom surface of the testing platform 33. The front-end servo motor 38 is poweredly connected to the front-end transfer rod 37. A receiving slot is opened at the end of the front-end transfer rod 37. A front-end pressure trigger 39 is fixedly installed inside the front-end transfer rod 37. The pressure detection end of the front-end pressure trigger 39 extends into the receiving slot of the front-end transfer rod 37.

[0033] Furthermore, the top surface of the end of the front transfer rod 37 is rotatably fitted with a front limit frame 310. A front micro motor 311 is fixedly installed on the front transfer rod 37. The front micro motor 311 is poweredly connected to the front limit frame 310 and signal-connected to the front pressure trigger 39. A front fixed electric telescopic rod 312 is fixedly installed on the front limit frame 310. The extension rod of the front fixed electric telescopic rod 312 passes through the front limit frame 310, so that the front fixed electric telescopic rod 312 and the front transfer rod 37 cooperate to clamp and fix the mechanical watch case.

[0034] Furthermore, a rear transfer rod 313 is rotatably fitted on the other side of the top of the testing platform 33. The length of the rear transfer rod 313 is greater than the distance between the testing platform 33 and the conveyor belt 23 on the other side. A rear servo motor 314 is fixedly installed on the bottom surface of the testing platform 33. The rear servo motor 314 is poweredly connected to the rear transfer rod 313. A receiving slot is opened at the end of the rear transfer rod 313. A rear pressure trigger 315 is fixedly installed inside the rear transfer rod 313. The pressure detection end of the rear pressure trigger 315 extends into the receiving slot of the rear transfer rod 313.

[0035] Furthermore, the top surface of the end of the rear transfer rod 313 is rotatably fitted with a rear limit bracket 316. A rear micro motor 317 is fixedly installed on the rear transfer rod 313. The rear micro motor 317 is poweredly connected to the rear limit bracket 316 and signal-connected to the rear pressure trigger 315. A rear fixed electric telescopic rod 318 is fixedly installed on the rear limit bracket 316. The extension rod of the rear fixed electric telescopic rod 318 passes through the rear limit bracket 316, so that the rear fixed electric telescopic rod 318 and the rear transfer rod 313 cooperate to clamp and fix the mechanical watch case.

[0036] When the mechanical watch case on the conveyor belt 23 is moved to the testing table 33, the front servo motor 38 is activated, driving the front transfer rod 37 to rotate, so that the front transfer rod 37 touches the mechanical watch case, making the mechanical watch case contact the front pressure trigger 39. Then, the front pressure trigger 39 controls the front micro motor 311 to start, driving the front limit frame 310 to rotate, so that the front limit frame 310 fits the mechanical watch case into the receiving slot of the front transfer rod 37. Then, the front fixed electric telescopic rod 312 extends to clamp and fix the mechanical watch case in the receiving slot of the front transfer rod 37. Then, the front transfer rod 37, in conjunction with the front fixed electric telescopic rod 312, moves the mechanical watch case to the testing table 33. The rear servo motor 314 drives the rear transfer rod 313 to move next to the mechanical watch case on the testing table 33. Similarly, after triggering the rear pressure trigger 315, the rear limit... The mounting frame 316 places the mechanical watch case into the receiving slot of the rear transfer rod 313. The rear fixed electric telescopic rod 318, in conjunction with the rear transfer rod 313, clamps and fixes the mechanical watch case. Then, the front transfer rod 37 is released from the front fixed electric telescopic rod 312 and deviates from the detection position of the detection table 33. The deflection motor 36 is started, which drives the power gear 35 to rotate. The power gear 35 drives the sector gear 34 to deflect. The sector gear 34 drives the connector 32 to deflect on the base frame 31, causing the connector 32 to deflect and tilt the detection table 33. This allows the visual inspection lens 29 above the detection table 33 to perform a second visual inspection of the mechanical watch case on the detection table 33. Then, the detection table 33 is reset, and the rear transfer rod 313, in conjunction with the rear fixed electric telescopic rod 318, moves the mechanical watch case after the second visual inspection to the conveyor belt 23 on the other side. Through the above process, a continuous visual inspection process is formed for each mechanical watch case.

[0037] Working principle of the invention: The mechanical watch cases to be inspected are sequentially conveyed within the machine body 1. The visual inspection lens 29 performs visual inspection on each mechanical watch case that passes through in sequence. At the same time, the conveyed mechanical watch cases are fixed on the inspection table 33. Then, the inspection table 33 is tilted so that the visual inspection lens 29 above the inspection table 33 performs visual inspection again. Then, the inspection table 33 is reset so that the normal direction of its highly reflective surface deviates from the axis of symmetry between the camera and the light source. This directs the specular reflected light in a direction other than the camera, so that the mechanical watch cases on the inspection table 33 are not affected by specular reflection or glare during visual inspection. This allows for visual inspection of reflective parts in the mechanical watch manufacturing process, eliminates the influence of specular reflection or glare, ensures stable and accurate image acquisition, improves the quality of visual inspection, and improves the accuracy of inspection results. When the mechanical watch case is conveyed in the vision inspection device, the mechanical watch cases are placed one by one on the conveyor belt 23 on one side. The conveyor motor 25 on one side is started. The conveyor motor 25 drives the belt 26 to rotate. The belt 26 drives the pulley 24 to rotate. The pulley 24 drives the conveyor wheel 22 to rotate. The conveyor wheel 22 drives the conveyor belt 23 on one side to rotate, so that the conveyor belt 23 on one side moves the mechanical watch case. At the same time, the vision inspection lens 29 above the conveyor belt 23 on one side performs an initial vision inspection on the mechanical watch case on the conveyor belt 23 on one side. When the mechanical watch case at the front of the conveyor belt 23 on one side moves to the infrared photoelectric sensor 27, that is, when the mechanical watch case moves to the adjacent inspection table 33, the infrared photoelectric sensor 27 detects the presence of an obstruction and controls the conveyor belt 23 on one side to stop rotating. After the mechanical watch case at the front moves to the inspection table 33, the conveyor belt 23 on one side continues to run. Similarly, after the mechanical watch case on the testing platform 33 is moved to the conveyor belt 23 on the other side, the mechanical watch case blocks the infrared photoelectric sensor 27. The infrared photoelectric sensor 27 controls the conveyor motor 25 on the other side to run, and the conveyor motor 25 on the other side drives the conveyor belt 23 on the other side to rotate, so that the conveyor belt 23 on the other side moves the tested mechanical watch case out. The visual inspection lens 29 above the conveyor belt 23 on the other side performs visual inspection and confirmation on the mechanical watch case on the conveyor belt 23 on the other side. When the infrared photoelectric sensor 27 on the other side is not blocked, it will control the conveyor belt 23 on the other side to stop running. When the mechanical watch case on the conveyor belt 23 is moved to the testing table 33, the front servo motor 38 is activated. The front servo motor 38 drives the front transfer rod 37 to rotate, so that the front transfer rod 37 touches the mechanical watch case, making the mechanical watch case contact the front pressure trigger 39. Then, the front pressure trigger 39 controls the front micro motor 311 to start, and the front micro motor 311 drives the front limit frame 310 to rotate, so that the front limit frame 310 fits the mechanical watch case into the receiving slot of the front transfer rod 37. Then, the front fixed electric telescopic rod 312 extends to clamp and fix the mechanical watch case in the receiving slot of the front transfer rod 37. Then, the front transfer rod 37, together with the front fixed electric telescopic rod 312, moves the mechanical watch case to the testing table 33. The rear servo motor 314 drives the rear transfer rod 313 to move next to the mechanical watch case on the testing table 33. Similarly, after triggering the rear pressure trigger 315, the rear limit is activated. The frame 316 places the mechanical watch case into the receiving slot of the rear transfer rod 313. The rear fixed electric telescopic rod 318 works with the rear transfer rod 313 to clamp and fix the mechanical watch case. Then, the front transfer rod 37 is released from the front fixed electric telescopic rod 312 and deviates from the detection position of the detection table 33. The deflection motor 36 is started, and the deflection motor 36 drives the power gear 35 to rotate. The power gear 35 drives the sector gear 34 to deflect. The sector gear 34 drives the connector 32 to deflect on the base frame 31, so that the connector 32 drives the detection table 33 to deflect and tilt. This allows the visual inspection lens 29 above the detection table 33 to perform a second visual inspection on the mechanical watch case on the detection table 33. Then the detection table 33 is reset, and the rear transfer rod 313 works with the rear fixed electric telescopic rod 318 to move the mechanical watch case after the second visual inspection to the conveyor belt 23 on the other side. Through the above process, a continuous visual inspection process is formed for each mechanical watch case.

[0038] A method for inspecting the processing of mechanical watches, using the aforementioned visual inspection device, includes the following steps: The mechanical watch cases to be inspected are placed sequentially on the conveyor belt 23 on one side. The conveyor belt 23 on one side carries the mechanical watch cases towards the inspection table 33. The visual inspection lens 29 above the conveyor belt 23 on one side performs an initial visual inspection on the mechanical watch cases. The front transfer rod 37, together with the front fixed electric telescopic rod 312, clamps and fixes the mechanical watch case after the initial visual inspection and moves it from the conveyor belt 23 on one side to the inspection table 33. Then, the rear transfer rod 313 and the rear fixed electric telescopic rod 318 clamp and fix the mechanical watch case on the inspection table 33. The front transfer rod 37 and the front fixed electric telescopic rod 312 are released from fixation and move away from the inspection position of the inspection table 33. The inspection table 33 is tilted so that the visual inspection lens 29 above the inspection table 33 can perform visual inspection again, and then the inspection table 33 is reset. The rear transfer rod 313 and the rear fixed electronic telescopic rod 318 move the mechanical watch case after the second visual inspection to the conveyor belt 23 on the other side. The visual inspection lens 29 above the conveyor belt 23 on the other side inspects and confirms the mechanical watch case. The mechanical watch case that has completed the inspection is removed from the conveyor belt 23 on the other side.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A visual inspection device, comprising a body, a detection mechanism disposed within the body, and an auxiliary mechanism disposed within the body, characterized in that: The inspection agency uses a visual inspection lens to visually inspect each mechanical watch case that passes by in turn. The auxiliary mechanism uses a testing platform to stop and fix each passing mechanical watch case in sequence. When the visual inspection lens performs visual inspection on the mechanical watch case on the testing platform, the testing platform is tilted so that the normal direction of its highly reflective surface deviates from the axis of symmetry between the camera and the light source, thereby guiding the mirror-reflected light in a direction other than the camera.

2. The visual inspection device according to claim 1, characterized in that: The detection mechanism includes a track plate, which is fixedly installed inside the machine body. The track plate is symmetrically arranged in two parts and extends through the machine body. Multiple transmission wheels are rotatably mounted on the track plate, symmetrically distributed on the two parts of the track plate and located between the two parts. The transmission wheels are symmetrically distributed on both sides of the track plate, and a conveyor belt is tensioned on each of the transmission wheels on both sides of the track plate. The width of the conveyor belt is adapted to the distance between the two parts of the track plate.

3. The visual inspection device according to claim 2, characterized in that: Both sides of the track upright are rotatably fitted with pulleys, which are poweredly connected to the conveyor wheels on both sides of the track upright. Multiple conveyor motors are fixedly installed inside the machine body. Belts are tensioned on the shafts of the conveyor motors on both sides and the pulleys on both sides. Multiple infrared photoelectric sensors are fixedly installed on both sides of the track upright. The infrared photoelectric sensors are symmetrically distributed on both sides of the track upright. The infrared photoelectric sensors on both sides are adjacent to the two ends of the conveyor belts on both sides. The infrared photoelectric sensors on each side are signal connected to the conveyor motors on each side.

4. The visual inspection device according to claim 3, characterized in that: Multiple suspensions are fixedly installed inside the machine body, and the suspensions are located above the track plate. Multiple vision inspection lenses are bolted to each suspension. The vision inspection lenses are respectively located above the conveyor belts on both sides and above the space between the two conveyor belts, so that the vision inspection lenses can visually inspect the mechanical watch case passing through the positions on the two conveyor belts and the space between the two conveyor belts. A warning light is fixedly installed on the top of the machine body. The three-color light of the warning light is used to indicate the operating status of the device.

5. A visual inspection device according to claim 4, characterized in that: The auxiliary mechanism includes a base frame, which is fixedly mounted on the track plate. The base frame is located between the two conveyor belts on both sides. A connector is rotatably fitted on the base frame, and a detection platform is fixedly mounted on the connector. The top surface of the detection platform is at the same height as the conveyor track of the conveyor belt. The size of the detection platform is adapted to the spacing between the two conveyor belts on both sides. A sector gear is fixedly mounted at the bottom end of the connector. A deflection motor is fixedly mounted on the base frame, and a power gear is fixedly mounted on the shaft of the deflection motor. The power gear meshes with the sector gear.

6. A visual inspection device according to claim 5, characterized in that: A front-end transfer rod is rotatably fitted to one side of the top of the testing platform. The length of the front-end transfer rod is greater than the distance between the testing platform and the conveyor belt on one side. A front-end servo motor is fixedly installed on the bottom surface of the testing platform. The front-end servo motor is poweredly connected to the front-end transfer rod. A receiving slot is opened at the end of the front-end transfer rod. A front-end pressure trigger is fixedly installed inside the front-end transfer rod. The pressure detection end of the front-end pressure trigger extends into the receiving slot of the front-end transfer rod.

7. A visual inspection device according to claim 6, characterized in that: The top surface of the end of the front-end transfer rod is rotatably fitted with a front-end limiting frame. A front-end micro motor is fixedly installed on the front-end transfer rod. The front-end micro motor is poweredly connected to the front-end limiting frame and signal-connected to the front-end pressure trigger. A front-end fixed electrically controlled telescopic rod is fixedly installed on the front-end limiting frame. The extension rod of the front-end fixed electrically controlled telescopic rod passes through the front-end limiting frame, so that the front-end fixed electrically controlled telescopic rod and the front-end transfer rod cooperate to clamp and fix the mechanical watch case.

8. A visual inspection device according to claim 7, characterized in that: A rear-end transfer rod is rotatably fitted to the other side of the top of the testing platform. The length of the rear-end transfer rod is greater than the distance between the testing platform and the conveyor belt on the other side. A rear-end servo motor is fixedly installed on the bottom surface of the testing platform. The rear-end servo motor is poweredly connected to the rear-end transfer rod. A receiving slot is opened at the end of the rear-end transfer rod. A rear-end pressure trigger is fixedly installed inside the rear-end transfer rod. The pressure detection end of the rear-end pressure trigger extends into the receiving slot of the rear-end transfer rod.

9. A visual inspection device according to claim 8, characterized in that: The top surface of the end of the rear transfer rod is rotatably fitted with a rear limiting bracket. A rear micro motor is fixedly installed on the rear transfer rod. The rear micro motor is poweredly connected to the rear limiting bracket and signal-connected to the rear pressure trigger. A rear fixed electrically controlled telescopic rod is fixedly installed on the rear limiting bracket. The extension rod of the rear fixed electrically controlled telescopic rod passes through the rear limiting bracket, so that the rear fixed electrically controlled telescopic rod and the rear transfer rod cooperate to clamp and fix the mechanical watch case.

10. A method for inspecting the processing of mechanical watches, using the visual inspection device as described in any one of claims 1-9, characterized in that, Includes the following steps: The mechanical watch cases to be inspected are placed sequentially on the conveyor belt on one side. The conveyor belt on one side carries the mechanical watch cases toward the inspection table. The visual inspection lens above the conveyor belt on one side performs an initial visual inspection on the mechanical watch cases. The front-end transfer rod, together with the front-end fixed electric telescopic rod, clamps and fixes the mechanical watch case after the initial visual inspection and moves it from the conveyor belt on one side to the inspection table. Then, the rear-end transfer rod and the rear-end fixed electric telescopic rod clamp and fix the mechanical watch case on the inspection table. The front-end transfer rod and the front-end fixed electric telescopic rod are then released from fixation and move away from the inspection position of the inspection table. The detection platform is tilted so that the visual inspection lens above the detection platform can perform visual inspection again, and then the detection platform is reset. The rear-end transfer rod and the rear-end fixed electronically controlled telescopic rod move the mechanical watch case after the second visual inspection to the conveyor belt on the other side. The visual inspection lens above the conveyor belt on the other side inspects and confirms the mechanical watch case. The mechanical watch case that has completed the inspection is moved out by the conveyor belt on the other side.

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