Catheter bell mouth surface quality detecting device

Abstract

The invention relates to the technical field of catheter bell mouth detection, in particular to a catheter bell mouth surface quality detecting device, comprising a computer desk and chairs, a computer and a working table body disposed on the computer desk and chairs. The working table body is provided with a circular turntable; a through hole is arranged in the middle of the circular turntable; apositioning mechanism for fixing the catheter is disposed in the through hole; a end surface of the circular turntable is provided with a viewing mechanism for positioning the surface of the catheterfor viewing the quality of the surface of the catheter; a product nameplate for engraving information is disposed on a side end of the workbench body; a lower end of the circular turntable is provided with a circuit servo motor for rotating the circular turntable. According to the catheter bell mouth surface quality detecting device, the traditional manual detection is replaced by advanced detection methods, which overcomes the shortcomings of artificial standing, low efficiency, difficulty in identifying problems, and prone to missed detection. The use of the invention can quickly characterize the surface quality of the conduit flare and has a great effect on improving the quality of the catheter.

Description

technical field [0001] The invention relates to the technical field of tube bell mouth detection, in particular to a tube bell mouth surface quality detection device. Background technique [0002] At present, the detection method for catheters is as follows: manually hold the catheter, place it under a magnifying glass, manually rotate the catheter 360°, and observe whether there are quality defects on the key working surface of the catheter through the magnifying glass. It occurs frequently, but it cannot be eradicated. The original method mainly has the following problems: 1. It requires manual standing and bending over for a long time to operate, and the single-person operation is labor-intensive and people are prone to fatigue; the shape of the catheter is irregular, and it is difficult to manually hold the catheter. Hold the catheter in one hand, and observe with a magnifying glass in the other hand. Due to the irregular shape of the catheter, it is difficult to rotate ...

AI Technical Summary

Problems solved by technology

[0002] At present, the detection method for catheters is as follows: manually hold the catheter, place it under a magnifying glass, manually rotate the catheter 360°, and observe whether there are quality defects on the key working surface of the catheter through the magnifying glass. It occurs frequently, but it cannot be eradicated. The original method mainly has the following problems: 1. It requires manual standing and bending over for a long time to operate, and the single-person operation is labor-intensive and people are prone to fatigue; the shape of the catheter is irregular, and it is difficult to manually hold the catheter. Hold the catheter in one hand, and observe with a magnifying glass in the other hand. Due to the irregular shape of the catheter, it is difficult to rotate and it is inconvenient to observe. When it is heavy, it is difficult to hold the catheter in the air to observe. When holding the front end of the catheter, it is difficult to grasp the catheter and rotate it for observation. When holding the catheter in the middle part, the bell mouth of the catheter cannot be observed or is extremely difficult to observe, and effective defects cannot be carried out. Inspection, it is difficult to find the quality defects of the catheter; 2. A single catheter needs to be rotated back and forth from multiple angles to observe more than once, the rotation speed is not easy to control when rotating, and the focal length cannot be controlled, and the focal length is often inappropriate, resulting in unclear observation pictures, etc. In the case of a long time, the efficiency is low; because the defect of the catheter is not easy to detect at a single angle position, it needs to be rotated and observed multiple times, and the inconvenience of human operation makes it impossible to observe the work for a long time, and the efficiency is low; 3. After the defect is found, it cannot be accurately marked and measured. Analysis; when a defect is found artificially, it is impossible to use effective means to conduct qualitative analysis on the defect. The size and depth of the catheter defect can only be judged by visual analysis. Judging whether it meets the quality requirements, in terms of craftsmanship, there are clear regulations on the scratches, cracks, and indentations of the catheter, which leads to artificial observation relying more on experience and feeling these uncontrollable human factors. The biggest problem of manual hand-held observation is; 4. The magnification of the magnifying glass is fixed, and it cannot be further magnified and analyzed after the defect is found; Second, when we find a defect, the staff cannot magnify and observe the defect at the first time, and must use a magnifying glass with a larger magnification, which undoubtedly increases the staff who manually hold the catheter and the magnifying glass. Workload; 5. People are prone to visual fatigue and missed inspections; when manually holding the catheter and placing it under a magnifying glass for detection, due to artificial fatigue caused by holding the catheter and eye fatigue caused by long-term observation of the magnifying glass, the artificial speed is uncontrollable Sexuality leads to more eye fatigue, and it is easy to ignore problems such as missed inspections caused by defects in the quality of catheters, which are inevitable problems in manual inspections

[0003] To sum up the problems and defects mentioned above, it is enough to prove that the detection methods at this stage are backward, the work efficiency is low, the human error is high, and the quality cannot be determined, etc.

Since the catheter is the "blood vessel" of the aircraft and is used to transmit the "blood" of the aircraft, the importance of the catheter is self-evident. Many aircraft accidents and accidents are caused by the quality of the catheter. The cracks in the catheter are extremely serious when flying in the air. It is easy to cause oil leakage and other situations, so that there are huge hidden dangers in flight. It is urgent to develop a device for the surface quality inspection of the tube bell mouth, so as to change the many disadvantages of manual hand-held inspection at this stage.

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