Aviation part defect detection device based on machine vision
By using the laser head and magnifying camera of a machine vision device to inspect aerospace parts, the problem of defects being difficult to detect by manual inspection has been solved, achieving efficient and low-cost defect detection.
Patent Information
- Application Number
- CN202421229822.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2034-05-31
AI Technical Summary
Because aerospace parts are small in size, defects are difficult to detect manually, resulting in low inspection efficiency and easy oversight.
A machine vision-based defect detection device for aerospace components is adopted, which uses a laser head and a magnifying camera for detection. The laser head detects protrusions or tilts on the surface of the components, and the magnifying camera transmits images to a display for observation and marking.
It enables efficient and low-cost defect detection of parts, easily identifying protrusions or tilted parts, thus improving the accuracy and efficiency of detection.
Smart Images
Figure CN223841800U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of parts inspection, and in particular to a defect detection device for aerospace parts based on machine vision. Background Technology
[0002] Components in aero-engines, such as turbine blades and integral bladed disks, operate in high-temperature and high-pressure environments, placing high demands on their stability, wear resistance, and creep resistance at high temperatures. Therefore, they require a certain level of impact resistance, and after manufacturing, they need to be tested to ensure they meet the required standards.
[0003] Because some parts are small in size, they need to be inspected manually. However, people have limited energy, and if defects occur on the parts, they are not easy to find or are easily overlooked.
[0004] Therefore, it is necessary to propose a machine vision-based defect detection device for aerospace components to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a machine vision-based defect detection device for aerospace components, in order to solve the problem that some components are small in size and require manual inspection, but personnel have limited energy and if defects occur on the components, it is not easy for personnel to find them or to overlook them.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a machine vision-based defect detection device for aerospace components, comprising a support base plate, two first slide rails arranged parallel to each other at the top of the support base plate, a sliding plate slidably fitted on the two first slide rails, two protruding blocks at the top of the sliding plate, a test plate engaged between the two protruding blocks, a fixing seat and a blocking block respectively provided on both sides of the protruding blocks, a laser groove opened on the side of the fixing seat near the test plate, a laser head disposed inside the laser groove, a magnifying camera disposed above the test plate, and the magnifying camera and a display connected for signal transmission.
[0007] Preferably, a second slide rail is provided at one end of the two first slide rails, a slider is slidably fitted on the second slide rail, a sliding rod is fixed at the top of the slider, a clamping block is provided on the outside of the sliding rod, a first electric push rod is fixed on one side of the clamping block, and the magnifying camera is fixed to the bottom of the first electric push rod.
[0008] Preferably, both the first slide rail and the second slide rail are fixed to the top of the support base plate. A through hole is provided on one side of the support base plate, and a fixing screw is threaded into the through hole. One end of the fixing screw is pressed against the outside of the sliding rod.
[0009] Preferably, a second electric push rod is fixed on both sides of the bottom end of the sliding plate, the top ends of the two second electric push rods extend out of the sliding plate, and the two extended ends are respectively fixedly connected to the bottom of the fixed seat and the blocking block.
[0010] Preferably, a black cloth is provided on the side of the blocking block near the laser head, and the black cloth is used to absorb light.
[0011] Preferably, multiple laser heads are provided, and the multiple laser heads are arranged in parallel.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] 1. In the actual operation of this utility model, the test plate that needs to be defect-detected can be placed between two protruding blocks and the test plate can be locked in place. At this time, by activating multiple laser heads, the light emitted by the multiple laser heads passes through the top and side of the test plate. If the top and side of the test plate protrudes or tilts, it will block the light. Personnel can easily find the protruding part and test the product as a defective product. The testing agency has low operating costs and good testing results.
[0014] 2. In the actual operation of this utility model, the magnifying camera can capture images of the upper surface of the test plate and transmit the images to the display. The images are magnified for easy observation. Furthermore, the display can also show the protrusions that block the laser, making it convenient for personnel to mark them. The magnifying camera can be moved up and down by the first electric push rod. This allows the magnifying camera to adapt to shooting test plates of different thicknesses and also facilitates focusing. In addition, the two second electric push rods can respectively drive the fixed base and the blocking block to rise, making it convenient for the laser to detect test plates of different thicknesses. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the machine vision-based defect detection device for aerospace components according to this utility model.
[0016] Figure 2 This is a schematic diagram of the structure of the laser groove of this utility model.
[0017] Figure 3 This utility model Figure 1 Enlarged diagram of point A in the middle.
[0018] In the diagram: 1. Support base plate; 2. First slide rail; 3. Sliding plate; 4. Protruding block; 5. Test plate; 6. Magnifying camera; 7. First electric push rod; 8. Sliding rod; 9. Clamping block; 10. Fixing screw; 11. Second slide rail; 12. Fixing base; 13. Blocking block; 14. Laser groove. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0020] This utility model provides, for example Figure 1 - Figure 3 The device shown is a machine vision-based defect detection device for aerospace components. It includes a support base plate 1, two first slide rails 2 are arranged parallel to each other at the top of the support base plate 1, and a sliding plate 3 is slidably fitted on the two first slide rails 2. Two protrusions 4 are arranged at the top of the sliding plate 3, and a test plate 5 is engaged between the two protrusions 4. A fixing seat 12 and a blocking block 13 are respectively arranged on both sides of the protrusions 4. A laser groove 14 is opened on the side of the fixing seat 12 near the test plate 5. A laser head is arranged inside the laser groove 14. A black cloth is arranged on the side of the blocking block 13 near the laser head. The black cloth is used to absorb light. Multiple laser heads are arranged in parallel.
[0021] In the actual operation of this utility model, the test plate 5 that needs to be defect-detected can be placed between two protruding blocks 4 and the test plate 5 can be locked and fixed. At this time, by activating multiple laser heads, the light emitted by the multiple laser heads passes through the top and side of the test plate 5. If the top and side of the test plate 5 protrudes or tilts, it will block the light. Personnel can easily find the protruding part and test the product as a defective product. The testing agency has low operating costs and good testing results.
[0022] Two first slide rails 2 are provided with a second slide rail 11 at one end. A slider is slidably fitted on the second slide rail 11. A sliding rod 8 is fixed at the top of the slider. A clamping block 9 is provided on the outside of the sliding rod 8. A first electric push rod 7 is fixed on one side of the clamping block 9. A magnifying camera 6 is fixed at the bottom of the first electric push rod 7. A magnifying camera 6 is provided above the test plate 5. The magnifying camera 6 is connected to the display signal.
[0023] In the actual operation of this utility model, the magnifying camera 6 can capture images of the upper surface of the test plate 5 and transmit the images to the display. At the same time, the images are magnified for display, which makes it easier to observe. Furthermore, the display can also show the protrusions that block the laser, making it convenient for personnel to mark them.
[0024] Both first slide rails 2 and second slide rails 11 are fixed to the top of the support base plate 1. A through hole is provided on one side of the support base plate 1, and a fixing screw 10 is threaded in the through hole. One end of the fixing screw 10 is pressed against the outside of the sliding rod 8. Both sides of the bottom end of the sliding plate 3 are fixed with second electric push rods. The top ends of the two second electric push rods extend out of the sliding plate 3, and the two extended ends are fixedly connected to the bottom of the fixed seat 12 and the blocking block 13, respectively.
[0025] In the actual operation of this utility model, the magnifying camera 6 can be moved up and down by the first electric push rod 7. On the one hand, the magnifying camera 6 can adapt to shooting test plates 5 of different thicknesses, and it is also convenient for the magnifying camera 6 to focus. In addition, the two second electric push rods can respectively drive the fixed base 12 and the blocking block 13 to rise, so as to facilitate the laser to detect test plates 5 of different thicknesses.
Claims
1. A machine vision-based defect detection device for aerospace components, comprising a support base plate (1), characterized in that: The top of the supporting base plate (1) is provided with two first slide rails (2) in parallel. A sliding plate (3) is slidably fitted on the two first slide rails (2). The top of the sliding plate (3) is provided with two protruding blocks (4). A test plate (5) is engaged between the two protruding blocks (4). A fixing seat (12) and a blocking block (13) are respectively provided on both sides of the protruding block (4). A laser groove (14) is opened on the side of the fixing seat (12) near the test plate (5). A laser head is provided inside the laser groove (14). A magnifying camera (6) is provided above the test plate (5). The magnifying camera (6) is connected to the display signal.
2. The machine vision-based defect detection device for aerospace components according to claim 1, characterized in that: Two first slide rails (2) are provided with a second slide rail (11) at one end. A slider is slidably fitted on the second slide rail (11). A sliding rod (8) is fixed at the top of the slider. A clamping block (9) is provided on the outside of the sliding rod (8). A first electric push rod (7) is fixed on one side of the clamping block (9). The magnifying camera (6) is fixed to the bottom of the first electric push rod (7).
3. The machine vision-based defect detection device for aerospace components according to claim 2, characterized in that: The two first slide rails (2) and the second slide rail (11) are fixed to the top of the support base plate (1). A through hole is provided on one side of the support base plate (1), and a fixing screw (10) is threaded in the through hole. One end of the fixing screw (10) is pressed against the outside of the sliding rod (8).
4. The machine vision-based defect detection device for aerospace components according to claim 1, characterized in that: The sliding plate (3) has two second electric push rods fixed on both sides of its bottom end. The top ends of the two second electric push rods extend out of the sliding plate (3), and the two extended ends are fixedly connected to the bottom of the fixed seat (12) and the blocking block (13), respectively.
5. The machine vision-based defect detection device for aerospace components according to claim 1, characterized in that: The blocking block (13) has a black cloth on the side near the laser head, which is used to absorb light.
6. The machine vision-based defect detection device for aerospace components according to claim 1, characterized in that: The laser head is provided in multiple ways, and the multiple laser heads are arranged in parallel.