Defect detection device for current limiting layer in ceramic matrix composite material

Abstract

The utility model discloses a defect detection device for a current-limiting layer in a ceramic matrix composite material, which comprises a moving component for transmitting a sample to be detected to a collecting component, a guide component for guiding the feeding of the sample to be detected is arranged at the feeding end of the moving component, an acrylic plate is arranged right below the collecting component, and the collecting component is arranged below the acrylic plate. An adjustable light source is arranged below the acrylic plate; and the acquisition assembly comprises a camera I and a camera II which are respectively used for acquiring the surface and the side surface of the sample to be detected. The method realizes simultaneous surface and side surface defect detection, is suitable for detection speed and precision of large-batch samples, and realizes intelligentization of quality control.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of defect detection device, specifically related to a kind of defect detection device for ceramic matrix composite in current-limiting layer. BACKGROUND

[0002] With the development of science and technology, ceramic matrix composite is widely used in aerospace, automobile, electronic equipment and other fields due to its excellent high-temperature resistance, corrosion resistance, wear resistance and other characteristics. In these fields, the design and performance of the current-limiting layer are crucial, especially when the ceramic matrix composite works in a high-current or high-temperature environment, the surface quality of the current-limiting layer directly affects the safety and stability of the equipment.

[0003] Currently, the traditional appearance quality detection method of ceramic matrix composite current-limiting layer can only take pictures of the surface of the sample to be tested when using existing defect detection devices, ignoring the defects on the side of the sample to be tested, resulting in sample scrap. When the number of samples to be tested is large, it is difficult to quickly and effectively identify surface defects, resulting in low efficiency and large detection errors. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of defect detection device for ceramic matrix composite in current-limiting layer, realize the defect detection of surface and side at the same time, adapt to the detection speed and precision of large batch of samples, solve the problems of manual detection, low detection precision and efficiency in the prior art.

[0005] To solve the above technical problems, the utility model adopts the following scheme:

[0006] A kind of defect detection device for ceramic matrix composite in current-limiting layer, including the mobile assembly that the sample to be tested is transferred to the acquisition component, the guide assembly for guiding the sample to be tested feed is arranged at the feed end of the mobile assembly, the acrylic plate is arranged below the acquisition component, the adjustable light source is arranged below the acrylic plate, the acquisition component includes camera one and camera two for collecting the surface and side of the sample to be tested respectively.

[0007] Further, the two sides of the acrylic plate have inclined surfaces.

[0008] Further, the mobile assembly includes a support column on the surface of the base and a bottom plate on the top end of the support column, the two sides of the bottom plate are provided with vertical plates, a rotating roller and a transmission belt are arranged between the two vertical plates, the bottom plate is located between the transmission belts, the guide assembly is located on the surface of the vertical plate, and the acrylic plate is embedded in the bottom plate.

[0009] Further, the width of the transmission belt is greater than the surface width of the acrylic plate.

[0010] Further, the end of one of the rotating rollers is connected with the output end of the servo motor.

[0011] Further, the guiding assembly comprises a first fixing base and a second fixing base, the first fixing base and the second fixing base are respectively provided with hydraulic rods and connecting rods connected with the guiding plates, and the two guiding plates are symmetrical to each other.

[0012] Further, the opposite sides of the two guiding plates are provided with buffer blocks made of rubber.

[0013] Further, the connecting rod penetrates through the top of the second fixing base and is limited by a screw.

[0014] Further, an installation frame is arranged away from the surface of the base of the guiding assembly, the installation frame comprises vertical rods arranged on the top of the base, long cross rods and short cross rods arranged on the top of the vertical rods, a secondary short cross rod one connected with the camera one is arranged between the opposite long cross rods, a secondary short cross rod two connected with the camera two is arranged between the opposite vertical rods, and the camera two is arranged at the bottom of the secondary short cross rod two.

[0015] Further, the display screen electrically connected with the camera one and the camera two is further arranged, and a processing module for identifying defects of the photos obtained by the collecting assembly is arranged in the display screen.

[0016] The present application has the following beneficial effects:

[0017] The present application has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic view of the present application;

[0019] Figure 2 Fig. 2 is a structural schematic view of the moving assembly and the guiding assembly of the present application;

[0020] Figure 3 Fig. 3 is a sectional structural schematic view of the acrylic plate of the present application.

[0021] Mark No. : 1 - base, 10 - vertical rod, 11 - long cross rod, 12 - short cross rod, 120 - secondary short cross rod one, 121 - secondary short cross rod two, 13 - mounting frame, 2 - moving assembly, 20 - support column, 21 - bottom plate, 22 - acrylic plate, 23 - vertical plate, 24 - rotating roller, 25 - transmission belt, 26 - servo motor, 3 - guide assembly, 30 - fixed seat one, 31 - connecting rod, 32 - guide plate, 33 - hydraulic rod, 34 - buffer block, 35 - fixed seat two, 4 - acquisition assembly, 40 - camera one, 41 - camera two, 43 - adjustable light source, 5 - display screen. DETAILED DESCRIPTION

[0022] The utility model will be described in further detail below in combination with the embodiments and drawings, but the embodiments of the utility model are not limited to this.

[0023] In the description of the utility model, it needs to be explained that the directions or position relations indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom" are based on the directions or position relations shown in the drawings, or the directions or position relations commonly placed when the utility model product is used, which are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as limiting the utility model to having a specific direction, being constructed and operated in a specific direction, and therefore cannot be understood as limiting the utility model.

[0024] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "open", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Embodiment 1

[0026] The embodiment 1 of the utility model is a kind of defect detection device of current limiting layer in composite material, a kind of defect detection device for current limiting layer in ceramic matrix composite material, including the moving assembly 2 of transmission sample to be measured to acquisition assembly 4, the inlet end of the moving assembly 2 is provided for the guide assembly 3 of guiding sample to be measured feed, the acquisition assembly 4 is provided with acrylic plate 22 below, adjustable light source 43 is provided below the acrylic plate 22, the acquisition assembly 4 includes camera one 40 and camera two 41 for respectively collecting the surface and side of sample to be measured.

[0027] Refer toFigure 1 and Figure 2 The technical concept of the present application is to provide a moving assembly 2 which can transmit the sample to be tested from the feeding end to the lower side of the collecting assembly 4, and the collecting assembly 4 can take photos of the surface and side of the sample to be tested under the control of an external controller. The adjustable light source 43 can uniformly light the light upward through the acrylic plate 22, so that the photos taken by the collecting assembly 4 are clear when the sample to be tested reaches the position of the camera 1 40 and the camera 2 41, which facilitates the subsequent defect identification, analysis of the defect position, type and size in the photos, and thus the quality evaluation result, thereby improving the detection efficiency.

[0028] In some preferred embodiments, the acrylic plate 22 has an inclined surface on both sides. Referring to Figure 3 The acrylic plate 22 with an inclined surface focuses the adjustable light source 43 at the bottom on the side of the sample to be tested, so that the collecting assembly 4 can obtain clear photos when taking photos, thereby reducing the subsequent pretreatment process. The angle of the inclined surface can be set according to actual needs.

[0029] In some preferred embodiments, the moving assembly 2 includes a support column 20 located on the surface of the base 1 and a bottom plate 21 located at the top end of the support column 20. The bottom plate 21 is provided with a vertical plate 23 on both sides, and a rotating roller 24 and a transmission belt 25 are arranged between the two vertical plates 23. The bottom plate 21 is located between the transmission belts 25. The guide assembly 3 is located on the surface of the vertical plate 23, and the acrylic plate 22 is embedded in the bottom plate 21.

[0030] Specifically, the bottom plate 21 is located above the base 1 by the support column 20, the rotating roller 24 is located at both ends of the bottom plate 21, and the transmission belt 25 is arranged. The bottom plate 21 is located between the top surface and the bottom surface of the transmission belt 25, which ensures that the sample to be tested provides a bearing condition during movement; at the same time, the vertical plate 23 located on both sides of the bottom plate 21 provides an installation position for the guide assembly 3. The transparent acrylic plate 22 is located in the bottom plate 21 away from the guide assembly 3, so as to focus the adjustable light source 43 at the bottom of the acrylic plate 22 on the side of the sample to be tested.

[0031] In some preferred embodiments, the width of the transmission belt 25 is greater than the surface width of the acrylic plate 22. The purpose is to ensure that the light source is concentrated on the side of the sample to be tested by the acrylic plate 22 located below the transmission belt 25, thereby improving the clarity of the collected photos.

[0032] In some preferred embodiments, one end of the rotating roller 24 is connected with the output end of the servo motor 26. The transmission belt 25 is mainly driven by the rotating roller 24 under the driving of the servo motor 26, and the outer periphery of the rotating roller 24 is provided with a limiting ring for limiting the position of the transmission belt 25 in the rotating roller 24, preventing the transmission belt 25 from deviating in the rotating roller 24 and causing the collection position to be inconsistent. The limiting ring is not marked in the figure.

[0033] In some preferred embodiments, the guiding assembly 3 comprises a fixed seat one 30 and a fixed seat two 35, and the fixed seat one 30 and the fixed seat two 35 are respectively provided with a hydraulic rod 33 and a connecting rod 31 connected with the guiding plates 32. The two guiding plates 32 are symmetrical to each other.

[0034] Specifically, in use, the length of the connecting rod 31 is first fixed, so that the position of the guiding plate 32 connected with the connecting rod 31 is fixed; an external controller drives the hydraulic rod 33 to extend and retract, so that the guiding distance between the two guiding plates 32 adapts to the feeding movement of the sample to be tested in the transmission belt 25 and automatically guides, without the need for manual adjustment of the position, so as to ensure that the sample to be tested is entirely on the surface of the transmission belt 25 and is transported to the lower part of the collection assembly 4 for photo collection.

[0035] In some preferred embodiments, the opposite sides of the two guiding plates 32 are provided with buffer blocks 34 made of rubber material.

[0036] The buffer blocks 34 mainly prevent the guiding plate 32 made of steel material from causing damage to the sample to be tested, so as to cause inaccurate defect detection results. The buffer blocks 34 made of rubber material play a protective role in protecting the sample to be tested, preventing any physical damage and improving the subsequent detection accuracy.

[0037] In some preferred embodiments, the connecting rod 31 penetrates through the top of the fixed seat two 35 and is limited by a screw. The screw is used to limit the position of the connecting rod 31. In feeding and guiding, the position of the connecting rod 31 is generally fixed. When adjustment is needed, the screw is only loosened, the connecting rod 31 is moved to the required position on the top of the fixed seat two 35, and then the screw is tightened for limiting. The screw is not shown in the figure and is a conventional technology.

[0038] Embodiment 2

[0039] The embodiment 2 is implemented on the basis of the embodiment 1, and the mounting frame 13 is arranged on the surface of the base 1 away from the guide assembly 3, the mounting frame 13 comprises the vertical rods 10 arranged on the top of the base 1 and the long cross rods 11 and the short cross rods 12 arranged on the top of the vertical rods 10, the secondary short cross rod one 120 connected with the camera one 40 is arranged between the opposite long cross rods 11, the secondary short cross rod two 121 connected with the camera two 41 is arranged between the opposite vertical rods 10, and the bottom of the secondary short cross rod two 121 is provided with the camera two 41.

[0040] Specifically, the mounting frame 13 mainly comprises the frame structure composed of the vertical rods 10 and the long cross rods 11 and the short cross rods 12, and provides the basic frame condition for the mounting of the collecting assembly 4, the secondary short cross rod one 120 is arranged between the opposite long cross rods 11 to provide the mounting condition for the camera one 40, the secondary short cross rod two 121 is arranged between the opposite vertical rods 10 to provide the mounting condition for the camera two 41, the opposite vertical rods 10 are the two vertical rods 10 through which the transmission belt 25 penetrates, the position of the camera one 40 and the adjustable light source 43 is on the same vertical axis, which ensures the uniformity of light receiving of the sample to be measured below the camera one 40, so that a clear photo is taken, and meanwhile, the camera two 41 can be adjusted in height below the secondary short cross rod two 121, so that the camera two 41 is always located at the center position of the side of the sample to be measured, which ensures that the photo taken is complete on the side and improves the utilization rate of the camera two 41, the height adjustment equipment of the camera two 41 and the assembly of the camera one 40 and the camera two 41 belong to the prior art, and will not be described here, and can be set according to actual needs.

[0041] In some preferred embodiments, the display screen 5 electrically connected with the camera one 40 and the camera two 41 respectively is further included, and the processing module for identifying defects in the photos obtained in the collecting assembly 4 is arranged in the display screen 5.

[0042] Through electrical connection, under the action of the external controller, the sample to be measured is photographed at the positions of the camera one 40 and the camera two 41, and the photo is transmitted to the processing module in the display screen 5, the processing module performs the pretreatment operations such as denoising, light balancing and contrast enhancement on the image and analyzes the defects, and the defect result is displayed in the display screen 5, which improves the accuracy and detection efficiency of the defect detection result. The processing module belongs to the prior art, and the installation and connection in the processing module will not be described here.

[0043] The working principle of the utility model is: when using, first start the hydraulic rod 33, drive the guide plate 32 to adjust the guide distance, make the guide distance adapt to the width of the sample to be measured, thereby feed and guide the sample to be measured, start the rotating roller, the sample to be measured is transmitted above the transmission belt 25, when transmitted to the position of the camera one 40 and the camera two 41, the camera one 40 and the camera two 41 take photos, meanwhile, the taken photos are introduced into the processing module in the display screen 5, the processing module carries out the pretreatment operation such as denoising, illumination balancing and contrast enhancement to the original photos, analyzes the defect position, type and size in the photos after improving the image quality, thereby carries out the quality evaluation result, and displays qualified or unqualified in the display screen 5, is applicable to the defect detection of a large number of samples to be measured.The utility model sets up the moving assembly 2, the guide assembly 3, the acquisition assembly 4 and the display screen 5 and the processing module inside, adopts the automatic detection technology, can complete the detection of a large number of samples in a short time, avoids the error in manual detection, reduces manual intervention, realizes the intellectualization of quality control.The camera one 40 and the camera two 41 in the acquisition assembly 4 take photos and collect the side of the surface of the sample to be measured, improve the comprehensiveness of the defect detection of the sample to be measured, improve the detection efficiency and accuracy.

[0044] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, according to the technical essence of the utility model, any simple modification, equivalent replacement and improvement of the above embodiment still belongs to the protection scope of the utility model technical scheme within the spirit and principle of the utility model.

Claims

1. A device for defect detection of a current limiting layer in a ceramic matrix composite material, characterized in that, The mobile assembly (2) includes a guide assembly (3) for guiding the feed of the sample to be tested, and a collection assembly (4) below which is provided with a Perspex plate (22), and below the Perspex plate (22) is provided with an adjustable light source (43), and the collection assembly (4) includes a camera I (40) and a camera II (41) for collecting the surface and side of the sample to be tested, respectively.

2. A device for defect detection of a current limiting layer in a ceramic matrix composite according to claim 1, characterized in that The Perspex plate (22) has inclined surfaces on both sides.

3. The device for defect detection of a current limiting layer in a ceramic matrix composite material according to claim 1, wherein The mobile assembly (2) includes a support column (20) on the surface of the base (1) and a bottom plate (21) at the top of the support column (20), and on both sides of the bottom plate (21) are provided with vertical plates (23), and between the two vertical plates (23) are provided with a rotating roller (24) and a transmission belt (25), and the bottom plate (21) is located between the transmission belt (25), and the guide assembly (3) is located on the surface of the vertical plate (23), and the Perspex plate (22) is embedded in the bottom plate (21).

4. A device for detecting defects in a current limiting layer in a ceramic matrix composite according to claim 3, wherein The width of the transmission belt (25) is greater than the surface width of the Perspex plate (22).

5. The defect detection device for the current limiting layer in the ceramic matrix composite material according to claim 3, wherein the end of one rotating roller (24) is connected with the output end of the servo motor (26).

6. The device for defect detection of a current limiting layer in a ceramic matrix composite according to claim 3, wherein The guide assembly (3) includes a fixed seat I (30) and a fixed seat II (35), and the fixed seat I (30) and the fixed seat II (35) are respectively provided with a hydraulic rod (33) and a connecting rod (31) connected with a guide plate (32), and the two guide plates (32) are symmetrical to each other.

7. A device for defect detection of a current limiting layer in a ceramic matrix composite according to claim 6, characterized in that The opposite sides of the two guide plates (32) are provided with buffer blocks (34) made of rubber material.

8. A device for defect detection of a current limiting layer in a ceramic matrix composite according to claim 7, characterized in that The connecting rod (31) penetrates through the top of the fixed seat II (35) and is limited by a screw.

9. The device for defect detection of a current limiting layer in a ceramic matrix composite according to claim 7, characterized in that The surface of the base (1) away from the guide assembly (3) is provided with a mounting frame (13), and the mounting frame (13) includes a vertical rod (10) located at the top of the base (1), and a long cross rod (11) and a short cross rod (12) located at the top of the vertical rod (10), and opposite long cross rods (11) are provided with a secondary short cross rod I (120) connected with the camera I (40), and opposite vertical rods (10) are provided with a secondary short cross rod II (121) connected with the camera II (41), and the bottom of the secondary short cross rod II (121) is provided with the camera II (41).

10. The apparatus for defect detection of a current limiting layer in a ceramic matrix composite material according to claim 7, wherein It also includes a display screen (5) electrically connected with the camera I (40) and the camera II (41), respectively, and the display screen (5) is provided with a processing module inside for defect identification of the photos obtained by the collection assembly (4).

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