Automatic marking device of water immersion high-frequency ultrasonic flaw detector

Abstract

The utility model relates to an automatic marking device of a water immersion high-frequency ultrasonic flaw detector, and belongs to the technical field of physical detection equipment. The automatic marking device is vertically arranged on the stepping shaft, and the stepping shaft is provided with an ultrasonic detection probe which is vertically arranged; the automatic marking device comprises a pen container body, a bottom cover covers the bottom end of the pen container body, a through hole is formed in the center of the bottom cover, a marking pen is arranged in the pen container body, a pen point of the marking pen penetrates through the through hole, a container cover is arranged at the top of the pen container body, and an elastic piece is arranged between the top end of the marking pen and the inner wall of the top end of the container cover. And the pen container body is fixedly connected with the container cover through a rotary lock catch. According to the marking pen, the defect position is automatically marked on the surface of the sample in water, and the accuracy of marking the defect position is improved while the defect detection and marking efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of water immersion high-frequency ultrasonic flaw detector automatic marking device, belong to physical detection equipment technical field. BACKGROUND

[0002] In the water immersion high-frequency ultrasonic detection process, the bar to be tested is placed in a water tank filled with deionized water (ultrasonic detection medium), and a water immersion high-frequency probe is used to realize non-contact detection of the probe and the bar to be tested. High-frequency ultrasonic waves have the characteristics of short wavelength, good directivity and high detection accuracy, and have the advantage of rapid non-destructive testing of large-volume sample inclusions that other testing methods for inclusions do not have. In addition, ultrasonic waves can detect non-metallic inclusions or inclusion groups that are not commonly found inside steel, and can directly display the number of inclusions per unit volume of steel or the area content of inclusions. Therefore, using a high-frequency water immersion ultrasonic detection system to detect steel is the most effective method for rapid evaluation of cleanliness, and can systematically detect steel to achieve rapid evaluation of cleanliness.

[0003] After the water immersion high-frequency ultrasonic detection probe detects a defect, a mark needs to be made on the surface of the sample to facilitate subsequent further sample dissection analysis to determine the elemental composition, three-dimensional morphology, distribution type of internal defects such as inclusions, and to improve steel purity based on the sampling location and inclusion location, combined with process optimization during smelting and continuous casting. Therefore, accurate positioning of the defect location is particularly important. However, during the ultrasonic probe detection process, if manual marking of the defect location is used, due to the refraction phenomenon in water, the defect location marking is difficult to be accurate and has a large deviation. If laser marking technology is used, it is difficult to achieve in the water tank and the modification cost is high. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problems of the prior art by providing a water immersion high-frequency ultrasonic flaw detector automatic marking device that automatically marks the defect location on the surface of the sample in water, improving the efficiency of defect detection and marking and the accuracy of marking the defect location.

[0005] The utility model solves the above problems by adopting the following technical scheme: a water immersion high-frequency ultrasonic flaw detector automatic marking device is provided, the automatic marking device is vertically arranged on a stepping shaft, and an ultrasonic detection probe is vertically arranged on the stepping shaft; the automatic marking device comprises a pen barrel body, a bottom cover is arranged at the bottom end of the pen barrel body, a through hole is formed in the center of the bottom cover, a marker pen is arranged in the pen barrel body, the pen head of the marker pen penetrates through the through hole, a barrel cover is arranged at the top of the pen barrel body, an elastic member is arranged between the top end of the marker pen and the inner wall of the top end of the barrel cover, and the pen barrel body and the barrel cover are fixedly connected by a rotating lock buckle.

[0006] The elastic member comprises a spring, and the spring is arranged on a spring fixing plate.

[0007] The spring is a conical spring.

[0008] The pen holder is cylindrical, and its internal cavity is designed to fit a marker pen.

[0009] The diameter of the through hole is larger than the diameter of the front end of the marker pen.

[0010] Compared with the prior art, the advantages of this utility model are: an automatic marking device for a water immersion high-frequency ultrasonic flaw detector, in which a marker pen automatically marks the defect location on the surface of the sample in water, thereby improving the efficiency of defect detection and marking while also improving the accuracy of the marked defect location. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of an automatic marking device for a water immersion high-frequency ultrasonic flaw detector according to an embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram showing the installation of the automatic marking device and the ultrasonic testing probe.

[0013] In the diagram: 1. Cap, 2. Spring retaining plate, 3. Conical spring, 4. Pen holder body, 5. Marker pen, 6. Rotary lock, 7. Stepper shaft, 8. Ultrasonic testing probe. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0015] like Figure 1 , 2 As shown in this embodiment, an automatic marking device for a water immersion high-frequency ultrasonic flaw detector is provided. The automatic marking device is vertically mounted on a stepper shaft 7, and an ultrasonic testing probe 8 is vertically arranged on the stepper shaft 7. The automatic marking device and the ultrasonic testing probe 8 are arranged in parallel at intervals. The automatic marking device includes a pen barrel body 4, with a bottom cover at the bottom end of the pen barrel body 4. A through hole is opened in the center of the bottom cover. A marker pen 5 is provided inside the pen barrel body 4, and the pen tip of the marker pen 5 passes through the through hole, so that the pen tip protrudes from the pen barrel body. A cap 1 is fitted onto the top of the marker pen 5. An elastic element is provided between the inner wall of the top of the cap 1 and the top of the marker pen 5. The cap 1 and the pen barrel body 4 are fixedly connected by a rotating lock 6, which facilitates the replacement of the marker pen.

[0016] The aforementioned elastic element includes a conical spring 3, which is fixed to the spring fixing plate 2.

[0017] The pen holder body 4 is cylindrical, and its inner cavity matches the marker pen. The diameter of the through hole is slightly larger than the diameter of the marker pen's tip, ensuring unobstructed extension and retraction of the marker pen tip and preventing damage to the marker pen.

[0018] The marker pen adopts conventional water-insoluble paint pen, and the sample surface is marked in water, and the mark is durable and does not fall off, and the sample is convenient for subsequent analysis.

[0019] The pen barrel and the probe support are clamped on the stepping shaft, the computer is connected with the software, the computer sends a "marking" command, the fixed horizontal distance between the ultrasonic detection probe and the pen barrel is set, the pen barrel is automatically moved to the position of the ultrasonic detection probe in parallel, then the marker pen is automatically lowered according to the set water layer distance, and the marking is automatically completed under water. When the pen barrel is installed, the bottom end of the pen barrel is higher than the bottom plane of the ultrasonic detection probe by 5mm, the pen barrel is controlled to move synchronously by the stepping shaft, the stepping shaft is lowered according to the set distance (the water layer distance between the ultrasonic detection probe and the sample surface), the pen head of the marker pen contacts the sample surface, a certain impact force is generated between the pen head and the sample surface under the action of the conical spring, and the marking is performed; then the stepping shaft is lifted to reset, and the marking is completed.

[0020] The marker pen automatically marks the defect position on the sample surface in water, the accuracy of marking the defect position is improved while the efficiency of detecting and marking the defect is improved. Meanwhile, in order to prevent the sample from rusting and corroding in water, a chemical rust inhibitor is usually added in the water tank of the water immersion ultrasonic detector, and the automatic marking device can reduce the harm of the medium water with the chemical rust inhibitor to the human body.

[0021] In addition to the above-mentioned embodiments, the utility model also includes other implementation manners, and the technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the utility model claims.

Claims

1. A water immersion high-frequency ultrasonic flaw detector automatic marking device, characterized in that: The automatic marking device is vertically arranged on a stepping shaft, and an ultrasonic detection probe is vertically arranged on the stepping shaft; the automatic marking device comprises a pen barrel, a bottom cover is arranged at the bottom end of the pen barrel, a through hole is arranged at the center of the bottom cover, a marker is arranged in the pen barrel, the marker head penetrates through the through hole, a barrel cover is arranged at the top of the pen barrel, and an elastic element is arranged between the top end of the marker and the inner wall of the top end of the barrel cover; the pen barrel and the barrel cover are fixedly connected through a rotating lock buckle.

2. The automatic marking device of the water immersion high-frequency ultrasonic flaw detector according to claim 1, characterized in that: The elastic element comprises a spring, and the spring is arranged on a spring fixing sheet.

3. The automatic marking device of the water immersion high-frequency ultrasonic flaw detector according to claim 2, characterized in that: The spring is a conical spring.

4. The automatic marking device of the water immersion high-frequency ultrasonic flaw detector according to claim 1, characterized in that: The pen barrel is cylindrical, and the inner cavity of the pen barrel is matched with the marker.

5. The automatic marking device of the water immersion high-frequency ultrasonic flaw detector according to claim 1, characterized in that: The diameter of the through hole is greater than the diameter of the front end of the marker.

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