Mechanism for defect detection of strips

Abstract

The present disclosure belongs to the field of nuclear power technology, and specifically relates to a mechanism for defect detection of strips. In the present disclosure, the first detection module is fixedly connected to the upper end of the bracket, and the first camera is slidably connected to the first detection module. During the sliding process of the first camera, the lens of the first camera is located above the strip and facing the strip, and the lens of the first camera is installed with a coaxial light source; the light source module is located on one side of the stage bracket, and the strip light source is slidably connected to the light source module; the second camera is slidably connected to the second detection module, and during the sliding process of the second camera, the lens of the second camera faces the position of the spring on the side of the strip, and the annular light source surrounds the second camera lens. In this way, the measurement efficiency is improved, and the occurrence of human errors such as missed detection and false detection is avoided to the greatest extent, which plays an important role in product quality process control.

Description

Technical Field

[0001] The invention belongs to the technical field of nuclear power, and in particular relates to a mechanism for strip defect detection. Background Art

[0002] The strip is an important component of the nuclear fuel assembly. The quality of the strip is related to the safe operation of the nuclear fuel assembly. In related technologies, the quality of the strip is mainly checked manually. This inspection method is not only inefficient, but also has a high probability of missed detection and false detection. Therefore, it is urgent to improve the inspection efficiency of the strip and reduce human errors. Summary of the invention

[0003] In order to overcome the problems existing in the related art, a mechanism for strip defect detection is provided.

[0004] According to one aspect of an embodiment of the present disclosure, a mechanism for defect detection of a strip is provided, the mechanism for defect detection of a strip comprising: a base plate, a support frame, a first detection module, a first camera, a coaxial light source, a stage bracket, a clamping device, a light source module, a strip light source, a second camera, a ring light source, and a second detection module;

[0005] The support frame, the stage bracket, the light source module, and the second detection module are fixedly connected to the upper surface of the base plate;

[0006] The clamping device is arranged on the upper surface of the stage bracket, and the strip to be detected is clamped and fixed by the clamping device;

[0007] The first detection module is fixedly connected to the upper end of the support frame, and the first camera is slidably connected to the first detection module. During the sliding process of the first camera, the lens of the first camera is located above the strip and facing the strip, and the lens of the first camera is installed with a coaxial light source;

[0008] The light source module is located at one side of the stage bracket, the strip light source is slidably connected to the light source module, and the strip light source is used to illuminate the strip;

[0009] The second camera is slidably connected to the second detection module. During the sliding of the second camera, the lens of the second camera faces the position of the side spring of the strip, and the annular light source surrounds the second camera lens.

[0010] In a possible implementation, the mechanism for strip defect detection further includes: a first camera support;

[0011] The first camera is slidably connected to the first detection module via the first camera bracket.

[0012] In a possible implementation, the mechanism for strip defect detection further includes: a second camera support;

[0013] The second camera is slidably connected to the second detection module via the second camera bracket.

[0014] In a possible implementation, the mechanism for strip defect detection further includes: a light source bracket;

[0015] The bar-shaped light source is slidably connected to the light source module via the light source bracket.

[0016] In a possible implementation, the mechanism for strip defect detection includes a plurality of clamping devices, each clamping device fixes a strip;

[0017] During the sliding process of the first camera, the lens of the first camera faces each strip.

[0018] In a possible implementation, the mechanism for strip defect detection further includes a control device;

[0019] For each strip, the control device performs the following operations:

[0020] When the control device controls the light source module to move the strip light source to the position of each strip, the control device controls the first detection module to move the first camera from one end of the strip to the other end of the strip with a preset step length, and controls the first camera to pause for a preset time after each movement of the preset step length. The control device controls the first camera to capture an image once during each pause of the first camera. The control device also controls the second detection module to move the second camera from one end of the strip to the other end of the strip with the preset step length, and controls the second camera to pause for a preset time after each movement of the preset step length. The control device controls the second camera to capture an image once during each preset time length.

[0021] The beneficial effects of the present disclosure are as follows: the clamping device is arranged on the upper surface of the stage support, and the strip to be detected is clamped and fixed by the clamping device; the first detection module is fixedly connected to the upper end of the support, the first camera is slidably connected to the first detection module, and during the sliding process of the first camera, the lens of the first camera is located above the strip and facing the strip, and the lens of the first camera is installed with a coaxial light source; the light source module is located on one side of the stage support, and the strip light source is slidably connected to the light source module, and the strip light source is used to illuminate the strip; the second camera is slidably connected to the second detection module, and during the sliding process of the second camera, the lens of the second camera faces the position of the side spring of the strip, and the annular light source surrounds the lens of the second camera. In this way, the first camera and the second camera can collect images of the strip from the perspective of looking down and looking sideways, and the cooperation of the strip light source, the coaxial official and the annular light source can provide a well-lit lighting environment for the first camera and the second camera, thereby improving the measurement efficiency, and avoiding the occurrence of human errors such as missed detection and false detection to the greatest extent, and playing an important role in the process control of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a mechanism for strip defect detection according to an exemplary embodiment.

[0023] Figure 2 It is a schematic diagram of a mechanism for strip defect detection according to an exemplary embodiment.

[0024] In the figure:

[0025] 1. Base plate, 2. Support frame, 3. Module mounting plate, 4. First detection module, 5. Drag chain assembly, 6. First camera bracket, 7. First camera, 8. Lens, 9. Stage bracket, 10. Light source module, 11. Clamping device, 12. Coaxial light source, 13. Light source bracket, 14. Strip light source, 15. Second camera bracket, 16. Second detection module, 17. Second camera. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Figure 1 It is a schematic diagram of a mechanism for strip defect detection according to an exemplary embodiment. Figure 2 FIG. 1 is a schematic diagram of a mechanism for detecting defects of a strip according to an exemplary embodiment. Figure 1 and Figure 2As shown, the mechanism for defect detection of the strip includes: a base plate 1, a support frame 2, a first detection module 4, a first camera 7, a coaxial light source 12, a stage bracket 9, a clamping device 11, a light source module 10, a strip light source 14, a second camera 17, a ring light source, and a second detection module 16;

[0028] The support frame 2, the stage bracket 9, the light source module 10, and the second detection module 16 are fixedly connected to the upper surface of the base plate 1;

[0029] The clamping device 11 is arranged on the upper surface of the stage bracket 9, and the strip to be detected is clamped and fixed by the clamping device 11;

[0030] The first detection module 4 is fixedly connected to the upper end of the support frame 2 (for example, the first detection module 4 can be installed on the upper end of the support frame 2 through the module mounting plate 3. In addition, the cable of the first detection module 4 can be built into the drag chain assembly 5 to protect the cable), and the first camera 7 is slidably connected to the first detection module 4. During the sliding process of the first camera 7, the lens 8 of the first camera 7 is located above the strip and facing the strip, and the lens 8 of the first camera 7 is installed with a coaxial light source 12;

[0031] The light source module 10 is located on one side of the stage bracket 9, and the strip light source 14 is slidably connected to the light source module 10, and the strip light source 14 is used to illuminate the strip;

[0032] The second camera 17 is slidably connected to the second detection module 16 . During the sliding of the second camera 17 , the lens 8 of the second camera 17 faces the position of the side spring of the strip, and the annular light source surrounds the lens 8 of the second camera 17 .

[0033] In the present disclosure, a clamping device is arranged on the upper surface of the stage bracket, and the strip to be detected is clamped and fixed by the clamping device; the first detection module is fixedly connected to the upper end of the bracket, and the first camera is slidably connected to the first detection module. During the sliding process of the first camera, the lens of the first camera is located above the strip and facing the strip, and the lens of the first camera is installed with a coaxial light source; the light source module is located on one side of the stage bracket, and the strip light source is slidably connected to the light source module, and the strip light source is used to illuminate the strip; the second camera is slidably connected to the second detection module, and during the sliding process of the second camera, the lens of the second camera faces the position of the side spring of the strip, and the annular light source surrounds the lens of the second camera. In this way, the first camera and the second camera can collect images of the strip from the perspective of looking down and looking sideways, and the cooperation of the strip light source, the coaxial official and the annular light source can provide a well-lit lighting environment for the first camera and the second camera, thereby improving the measurement efficiency, and avoiding the occurrence of human errors such as missed detection and false detection to the greatest extent, and playing an important role in the process control of product quality.

[0034] In one possible implementation, Figure 1 and Figure 2 As shown, the mechanism for strip defect detection also includes: a first camera bracket 6 ; the first camera 7 is slidably connected to the first detection module 4 via the first camera bracket 6 .

[0035] In one possible implementation, Figure 1 and Figure 2 As shown, the mechanism for strip defect detection further includes: a second camera bracket 15 ; the second camera 17 is slidably connected to the second detection module 16 via the second camera bracket 15 .

[0036] In one possible implementation, Figure 1 and Figure 2 As shown, the mechanism for strip defect detection further includes: a light source bracket 13 ; the strip light source 14 is slidably connected to the light source module 10 via the light source bracket 13 .

[0037] In one possible implementation, Figure 1 and Figure 2 As shown, the mechanism for defect detection of strips includes a plurality of clamping devices 11, each clamping device 11 fixes a strip; when the first camera 7 is sliding, the lens 8 of the first camera 7 faces each strip.

[0038] In a possible implementation, the mechanism for strip defect detection further includes a control device;

[0039] For each strip, the control device performs the following operations:

[0040] When the control device controls the light source module to move the strip light source to the position of each strip, the control device controls the first detection module to move the first camera from one end of the strip to the other end of the strip with a preset step length, and controls the first camera to pause for a preset time after each movement of the preset step length. The control device controls the first camera to capture an image once during each pause of the first camera. The control device also controls the second detection module to move the second camera from one end of the strip to the other end of the strip with the preset step length, and controls the second camera to pause for a preset time after each movement of the preset step length. The control device controls the second camera to capture an image once during each preset time length.

[0041] In this way, the controller controls the strip light source to cooperate with the first camera and the second camera respectively through the light source module, the first detection module and the second detection module to realize automatic image acquisition of the strip. The first camera and the second camera pause for a preset time after the preset step length, so that the images captured by the first camera and the second camera are less affected by the camera displacement, making the captured images clearer and more complete.

[0042] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A mechanism for detecting defects in a strip, characterized in that: The mechanism for strip defect detection includes: a base plate, a support frame, a first detection module, a first camera, a coaxial light source, a stage bracket, a clamping device, a light source module, a strip light source, a second camera, a ring light source, and a second detection module; The support frame, the stage bracket, the light source module, and the second detection module are fixedly connected to the upper surface of the base plate; The clamping device is arranged on the upper surface of the stage bracket, and the strip to be detected is clamped and fixed by the clamping device; The first detection module is fixedly connected to the upper end of the support frame, and the first camera is slidably connected to the first detection module. During the sliding process of the first camera, the lens of the first camera is located above the strip and facing the strip, and the lens of the first camera is installed with a coaxial light source; The light source module is located at one side of the stage bracket, the strip light source is slidably connected to the light source module, and the strip light source is used to illuminate the strip; The second camera is slidably connected to the second detection module. During the sliding process of the second camera, the lens of the second camera faces the position of the side spring of the strip, and the annular light source surrounds the second camera lens; The mechanism for strip defect detection also includes: a light source support; The bar-shaped light source is slidably connected to the light source module via the light source bracket; The mechanism for defect detection of strips includes a plurality of clamping devices, each clamping device fixing a strip; When the first camera is sliding, the lens of the first camera faces each strip; The mechanism for defect detection of strips also includes a control device; For each strip, the control device performs the following operations: When the control device controls the light source module to move the strip light source to the position of each strip, the control device controls the first detection module to move the first camera from one end of the strip to the other end of the strip with a preset step length, and controls the first camera to pause for a preset time after each movement of the preset step length. The control device controls the first camera to capture an image once during each pause of the first camera. The control device also controls the second detection module to move the second camera from one end of the strip to the other end of the strip with the preset step length, and controls the second camera to pause for a preset time after each movement of the preset step length. The control device controls the second camera to capture an image once during each preset time length.

2. The mechanism for detecting defects in strips according to claim 1, characterized in that: The mechanism for strip defect detection also includes: a first camera support; The first camera is slidably connected to the first detection module via the first camera bracket.

3. The mechanism for strip defect detection according to claim 1, characterized in that: The mechanism for strip defect detection also includes: a second camera support; The second camera is slidably connected to the second detection module via the second camera bracket.

Images