A high-speed take-up surface micro-damage detection device

Abstract

The utility model relates to the technical field of material surface quality detection, especially, a kind of high-speed take-up surface micro-damage detection equipment, including rack and the detection unit and control unit being set to rack;Detection unit includes detection box, pitch adjusting assembly and conveying mechanism;The inlet and outlet are respectively set in the both ends of detection box, and two groups of interval setting pitch adjusting assembly are set along the transmission of detection piece preset path in detection box, and multiple groups of conveying mechanism are connected between two groups of interval setting pitch adjusting assembly, and are distributed in the circumferential distribution of the piece to be detected;Multiple groups of interval distribution image acquisition module are set on conveying mechanism;Control unit includes distance detection piece, speed detection piece and controller;Distance detection piece and speed detection piece are set corresponding to the piece to be detected, and controller is connected with distance detection piece, speed detection piece, pitch adjusting assembly, conveying mechanism and image acquisition module respectively;It can adjust detection parameter in real time according to take-up speed, reduce the rate of missed judgment and misjudgment.

Description

Technical Field

[0001] This utility model relates to the technical field of material surface quality testing, and in particular to a high-speed wire take-up surface micro-damage testing device. Background Technology

[0002] In the manufacturing process of continuous materials such as metal wires, optical fibers, and synthetic fibers, surface micro-damage is a key factor affecting product quality. Currently, to achieve real-time monitoring of surface micro-damage, online surface inspection equipment based on machine vision is widely used. This equipment captures images of the material surface through image acquisition modules and combines this with algorithmic analysis to identify and determine defects. In existing inspection equipment, the operating parameters of the inspection mechanism are mostly fixed and cannot be adjusted in real time according to changes in the take-up speed. When the take-up speed increases, the relative speed between the inspection mechanism and the workpiece becomes mismatched, causing the sensor to fail to fully capture defect signals, resulting in missed detections. When the take-up speed fluctuates, the fixed inspection parameters cause the inspection reference to shift, easily misjudging normal surface features as defects, leading to false positives. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a high-speed wire take-up surface micro-damage detection device that can adjust detection parameters in real time according to the take-up speed, thereby reducing the rate of missed and false detections.

[0004] This utility model discloses a high-speed wire take-up surface micro-damage detection device, including a frame and a detection unit and a control unit mounted on the frame. The detection unit includes a detection box, a spacing adjustment component, and a conveying mechanism. The detection box has an inlet and an outlet at both ends for the workpiece to be inspected to enter and exit. Two sets of spacing adjustment components are arranged at intervals along a preset path of the workpiece to be inspected inside the detection box. Multiple sets of conveying mechanisms distributed around the workpiece to be inspected are connected between the two sets of spacing adjustment components. Multiple sets of image acquisition modules are arranged at intervals on the conveying mechanism. The control unit includes a distance detection component, a speed detection component, and a controller. The distance detection component and the speed detection component are respectively set to the workpiece to be inspected. The controller is connected to the distance detection component, the speed detection component, the spacing adjustment component, the conveying mechanism, and the image acquisition module.

[0005] In a preferred embodiment of this utility model, each set of spacing adjustment components includes a first vertical plate and a second vertical plate arranged at relative intervals, with a turntable rotatably connected between the first and second vertical plates; the turntable has multiple vortex grooves, and the second vertical plate has a traveling groove corresponding to each of the vortex grooves; a movable seat is provided in both the vortex groove and the corresponding traveling groove; the turntables of the two sets of spacing adjustment components are fixedly connected by a connecting rod, and a set of transmission mechanisms is connected between the movable seats at corresponding positions of the two sets of spacing adjustment components; a first driving member is disposed on one of the first vertical plates, and the output end of the first driving member is connected to the turntable for driving the turntable to rotate so as to drive the movable seat to move radially.

[0006] As a preferred embodiment of this utility model, each set of conveying mechanisms includes a mounting frame, a driving wheel, a driven wheel, a transmission belt, and a second driving component; both ends of the mounting frame are fixedly connected to the corresponding movable seats; the driving wheel and the driven wheel are rotatably connected to the mounting frame at intervals, and the transmission belt is tensioned and sleeved on the outside of the driving wheel and the driven wheel; the transmission belt is an annular closed belt, and multiple image acquisition modules are spaced apart along the annular path of the transmission belt; the second driving component is disposed on the mounting frame, and the output end of the second driving component is connected to the driving wheel via transmission.

[0007] As a preferred embodiment of this utility model, a space is provided between the movable base and the mounting bracket for the image acquisition module to pass through.

[0008] As a preferred embodiment of this utility model, each image acquisition module includes a camera and a lighting source that is compatible with the camera.

[0009] As a preferred embodiment of this utility model, the inner wall surface of the testing box is a light-absorbing surface.

[0010] In a preferred embodiment of this utility model, the distance detection component is a laser rangefinder sensor, used to detect the radial distance between the image acquisition module and the surface of the component to be detected in real time; the speed detection component is a rotational speed sensor or a linear speed sensor, used to acquire the take-up speed signal of the component to be detected in real time.

[0011] As a preferred embodiment of this utility model, guide wheels are provided at both the inlet and outlet to guide the test piece along a preset path.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By synchronously monitoring the radial distance between the image acquisition module and the surface of the workpiece under test using the distance detection component in the control unit, the controller can dynamically adjust the spacing adjustment component to drive the moving seat to move the conveyor mechanism radially, ensuring that the image acquisition module and the workpiece under test maintain an appropriate distance. By acquiring the take-up speed signal of the workpiece under test in real time using the speed detection component in the control unit, the controller can dynamically adjust the conveyor mechanism to adjust the speed of the transmission belt, so that the relative movement speed of the image acquisition module and the workpiece under test is matched, ensuring that the sensor completely captures the defect signal, avoids the detection reference offset, reduces the missed detection rate and false detection rate, improves the accuracy and stability of surface micro-damage detection in high-speed take-up scenarios, and provides a reliable guarantee for product quality monitoring of continuous materials. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the detection unit of this utility model; Figure 4 This is a schematic diagram of the spacing adjustment component of this utility model; The attached diagram is labeled as follows: 1. Frame; 2. Detection unit; 21. Detection box; 211. Inlet; 212. Outlet; 213. Guide wheel; 22. Spacing adjustment assembly; 221. First upright plate; 222. Second upright plate; 2221. Walking groove; 223. Turntable; 2231. Vortex groove; 224. Moving seat; 225. Connecting rod; 226. First driving component; 23. Conveying mechanism; 231. Image acquisition module; 2311. Camera; 2312. Illumination source; 232. Mounting bracket; 233. Driving wheel; 234. Driven wheel; 235. Transmission belt; 236. Second driving component; 3. Control unit; 31. Distance detection component; 32. Speed ​​detection component; 33. Controller; 4. Space. Detailed Implementation

[0014] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0016] Reference Figures 1-2This embodiment provides a high-speed wire take-up surface micro-damage detection device, including a frame 1 and a detection unit 2 and a control unit 3 mounted on the frame 1. The frame 1 provides a stable mounting foundation and support for the entire device, ensuring that the detection unit 2 and control unit 3 remain in a stable position during operation and preventing vibration from affecting detection accuracy. The detection unit 2 includes a detection box 21, a spacing adjustment assembly 22, and a conveying mechanism 23. The detection box 21 has an inlet 211 and an outlet 212 at both ends for the workpiece to be inspected, allowing continuous materials such as wires to pass smoothly through the detection area. Inside the detection box 21, two sets of spaced spacing adjustment assemblies 22 are arranged along a preset path of the workpiece to be inspected, forming an adjustable detection frame. Multiple sets of conveying mechanisms 23, arranged circumferentially around the workpiece, are connected to the adjustment components 22. Multiple sets of spaced image acquisition modules 231 are installed on the conveying mechanisms 23 to directly capture image information of the material surface. The circumferential layout ensures that the entire outer surface of the wire can be captured without any blind spots. The control unit 3 includes a distance detection element 31, a speed detection element 32, and a controller 33. The distance detection element 31 and speed detection element 32 are both set corresponding to the workpiece and are used to acquire environmental parameters in real time. The controller 33 is connected to the distance detection element 31, speed detection element 32, spacing adjustment components 22, conveying mechanisms 23, and image acquisition modules 231 respectively. It is used to acquire key parameters during the detection process in real time and dynamically adjust the working state of the detection unit 2 according to parameter changes, coordinating the collaborative work of each execution component.

[0017] Specifically, refer to Figures 3-4Each set of spacing adjustment components 22 includes a first upright plate 221 and a second upright plate 222 arranged at relative intervals. A turntable 223 is rotatably connected between the first upright plate 221 and the second upright plate 222. The turntable 223 has multiple vortex grooves 2231. The second upright plate 222 has a traveling groove 2221 that corresponds one-to-one with the vortex grooves 2231. The traveling grooves 2221 are used to guide radial movement. A moving seat 224 is provided in both the vortex grooves 2231 and the corresponding traveling grooves 2221. A set of transmission mechanisms 23 is connected between the moving seats 224 at corresponding positions of the two sets of spacing adjustment components 22, so that both ends of each transmission mechanism 23 are stably supported, and both ends of each transmission mechanism 23 are stably supported. Support; the turntables 223 of the two sets of spacing adjustment components 22 are fixedly connected by connecting rods 225, which can ensure that the turntables 223 on both sides can rotate synchronously, thereby ensuring that all conveying mechanisms 23 can perform radial opening or closing movements synchronously, maintaining the concentricity of the detection system; the first driving component 226 is set on one of its first upright plates 221, and its output end is connected to the turntable 223 for driving the turntable 223 to rotate; when the turntable 223 rotates, the movable seat 224 embedded in the vortex groove 2231 is guided by the groove and simultaneously generates radial linear movement along the walking groove 2221, thereby realizing the adjustment of the entire detection ring diameter, adapting to the test pieces of different diameters, and providing the best imaging distance for the image acquisition module 231.

[0018] Furthermore, each set of transmission mechanisms 23 includes a mounting frame 232, a driving wheel 233, a driven wheel 234, a transmission belt 235, and a second driving component 236; both ends of the mounting frame 232 are fixedly connected to the corresponding movable seats 224, and their positions are determined by the spacing adjustment component 22; the driving wheel 233 and the driven wheel 234 are spaced a certain distance apart and rotatably connected to the mounting frame 232, and the transmission belt 235 is tensioned and sleeved on the outside of the driving wheel 233 and the driven wheel 234, forming a circular transmission path; the transmission belt 235 is a closed circular belt, such as a synchronous belt or a flat belt, to ensure smooth and accurate transmission; multiple image acquisition modules 231 are spaced apart along the circular path of the transmission belt 235; the second driving component... 236 is mounted on the mounting bracket 232, and its output end is connected to the drive wheel 233 for driving the drive wheel 233 to rotate, thereby driving the entire transmission belt 235 and the image acquisition module 231 on it to move along a circular path; by driving multiple image acquisition modules 231 to move synchronously through the transmission belt 235, it can achieve full coverage of the circumference of the workpiece to be inspected, and can also adapt to different take-up speeds by adjusting the speed of the transmission belt 235. When the take-up speed increases, the speed of the transmission belt 235 is increased synchronously to ensure that the image acquisition module 231 can completely capture the defect signal; when the take-up speed fluctuates, the speed of the transmission belt 235 is adjusted in real time to ensure a stable number of images acquired per unit length, avoiding missed judgments and false judgments.

[0019] A space 4 for the image acquisition module 231 to pass through is provided between the moving base 224 and the mounting frame 232. The dimension of the space 4 is designed according to the outer shape size and moving trajectory of the image acquisition module 231, so as to ensure that the image acquisition module 231 can smoothly pass through the space 4 without interfering with the moving base 224 and the mounting frame 232 during the movement along with the transmission belt 235.

[0020] Each image acquisition module 231 comprises a camera 2311 and an illumination light source 2312 matched with the camera 2311; the camera 2311 is used for image acquisition, and a high-resolution linear CCD camera or area array CMOS camera can be selected; the illumination light source 2312 is used for providing sufficient and uniform light for the imaging of the camera 2311, and an LED light source, a laser light source, a tungsten halogen lamp or a fluorescent lamp can be selected; the light from the illumination light source 2312 irradiates the surface of the to-be-detected part vertically or obliquely, so that obvious light and shadow contrast can be formed by micro-damages on the surface, highlighting the micro-damage features on the surface of the to-be-detected part, and the camera 2311 can capture the image information on the surface of the to-be-detected part with the cooperation of the light source, transmit the image data to the control unit 3 for analysis and processing, and provide a reliable image basis for defect identification and determination.

[0021] To suppress stray light reflection inside the box body and reduce the interference of ambient light on image acquisition, the inner wall surface of the detection box 21 is a light-absorbing surface, for example, coated with black matte paint or covered with light-absorbing flannelette, which can improve the signal-to-noise ratio of the image, provide a cleaner original image with higher contrast for the image processing algorithm, and reduce the probability of misjudgment and missed judgment.

[0022] The distance detection member 31 is a laser ranging sensor, configured to detect the radial distance between the image acquisition module 231 and the surface of the to-be-detected part in real time; the sensor accurately calculates the distance value by emitting a laser beam and receiving a reflected signal, and has the advantages of high measurement precision, fast response speed and strong anti-interference capability, and can feed back the change of the distance in real time; the speed detection member 32 is a rotation speed sensor or a linear speed sensor, configured to acquire the wire take-up speed signal of the to-be-detected part in real time; the rotation speed sensor can indirectly calculate the linear speed by detecting the rotation speed of the traction roller or the guide wheel 213, and the linear speed sensor can directly measure the moving speed of the material itself.

[0023] With reference to Figure 2 , to ensure that the to-be-detected part is always transmitted along a preset and stable path during the detection process, guide wheels 213 for guiding the to-be-detected part to transmit along the preset path are arranged at both the inlet 211 and the outlet 212; the guide wheels 213 are made of a material that is wear-resistant and not easy to damage the wire, and function to position and guide the wire, so as to prevent the wire from jumping or shifting during high-speed operation, thereby ensuring that the image acquisition module 231 can always aim at the correct detection area, and improving the stability and reliability of detection.

[0024] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-speed wire take-up surface micro-damage detection device, characterized in that, The device includes a frame (1) and a detection unit (2) and a control unit (3) mounted on the frame (1). The detection unit (2) includes a detection box (21), a spacing adjustment assembly (22), and a conveying mechanism (23). The detection box (21) has an inlet (211) and an outlet (212) at both ends for the parts to be tested to enter and exit. Two sets of spacing adjustment assemblies (22) are arranged at intervals inside the detection box (21) along a preset path for the parts to be tested. Multiple sets of components surrounding the parts to be tested are connected between the two sets of spacing adjustment assemblies (22). A circumferentially distributed conveying mechanism (23) is provided on the conveying mechanism (23); multiple sets of spaced image acquisition modules (231) are provided on the conveying mechanism (23); the control unit (3) includes a distance detection element (31), a speed detection element (32) and a controller (33); the distance detection element (31) and the speed detection element (32) are respectively provided for the object to be detected, and the controller (33) is connected to the distance detection element (31), the speed detection element (32), the spacing adjustment component (22), the conveying mechanism (23) and the image acquisition module (231).

2. The high-speed take-up surface micro-damage detection device as described in claim 1, characterized in that, Each set of the spacing adjustment components (22) includes a first upright plate (221) and a second upright plate (222) arranged at relative intervals. A turntable (223) is rotatably connected between the first upright plate (221) and the second upright plate (222). The turntable (223) has multiple vortex grooves (2231), and the second upright plate (222) has a traveling groove (2221) corresponding to each of the vortex grooves (2231). A moving seat (224) is provided in both the vortex groove (2231) and the corresponding traveling groove (2221). The two sets of spacing adjustment components ( The turntable (223) of 22) is fixedly connected by a connecting rod (225). The turntables (223) of the two sets of spacing adjustment components (22) are fixedly connected by a connecting rod (225). A set of transmission mechanisms (23) is connected between the corresponding moving seats (224) of the two sets of spacing adjustment components (22). The first driving member (226) is set on one of the first upright plates (221). The output end of the first driving member (226) is connected to the turntable (223) for driving the turntable (223) to rotate so as to drive the moving seat (224) to move radially.

3. The high-speed wire take-up surface micro-damage detection device as described in claim 2, characterized in that, Each of the conveying mechanisms (23) includes a mounting frame (232), a drive wheel (233), a driven wheel (234), a transmission belt (235), and a second drive member (236). The two ends of the mounting frame (232) are fixedly connected to the corresponding movable seats (224). The drive wheel (233) and the driven wheel (234) are rotatably connected to the mounting frame (232) at intervals. The transmission belt (235) is tensioned and sleeved on the outside of the drive wheel (233) and the driven wheel (234). The transmission belt (235) is an annular closed belt. Multiple image acquisition modules (231) are spaced apart along the annular path of the transmission belt (235). The second drive member (236) is mounted on the mounting frame (232), and the output end of the second drive member (236) is connected to the drive wheel (233) in a transmission connection.

4. The high-speed take-up surface micro-damage detection device as described in claim 3, characterized in that, A space (4) is provided between the movable base (224) and the mounting bracket (232) for the image acquisition module (231) to pass through.

5. The high-speed take-up surface micro-damage detection device as described in claim 1, characterized in that, Each of the image acquisition modules (231) includes a camera (2311) and an illumination source (2312) that is compatible with the camera (2311).

6. The high-speed take-up surface micro-damage detection device as described in claim 1, characterized in that, The inner wall surface of the detection box (21) is a light-absorbing surface.

7. The high-speed take-up surface micro-damage detection device as described in claim 1, characterized in that, The distance detection component (31) is a laser rangefinder sensor, used to detect the radial distance between the image acquisition module (231) and the surface of the object to be tested in real time; the speed detection component (32) is a rotation speed sensor or a linear speed sensor, used to acquire the take-up speed signal of the object to be tested in real time.

8. The high-speed take-up surface micro-damage detection device as described in claim 1, characterized in that, Both the inlet (211) and outlet (212) are equipped with guide wheels (213) for guiding the test piece along a preset path.

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