CN211043254U - Double-channel probe adjusting mechanism - Google Patents
Double-channel probe adjusting mechanism Download PDFInfo
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- CN211043254U CN211043254U CN201921033668.0U CN201921033668U CN211043254U CN 211043254 U CN211043254 U CN 211043254U CN 201921033668 U CN201921033668 U CN 201921033668U CN 211043254 U CN211043254 U CN 211043254U
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Abstract
The utility model relates to a binary channels probe adjustment mechanism belongs to steel detection equipment technical field that detects a flaw. The probe device comprises a first probe frame and a second probe frame, wherein the first probe frame is fixed on a module, and the second probe frame is movably connected with the module through a fine adjustment mechanism and used for finely adjusting the horizontal rotation angle of the second probe frame; the bottom of the first probe frame and the bottom of the second probe frame are respectively movably connected with a corresponding first clamping port and a corresponding second clamping port through a horizontal adjusting mechanism, the first clamping port is used for setting a first probe, and the second clamping port is used for setting a second probe. The method comprises the steps of positioning and analyzing defects by using a test method for synchronously detecting the internal macroscopic defects in the steel through 2 probes with different frequencies, and evaluating the internal macroscopic purity of the steel; the partitioned detection of the sample to be detected is synchronously realized, the detection blind area of the sample is reduced, the detection accuracy is improved, and the comprehensive and rapid evaluation of the purity of the interior of the steel is facilitated.
Description
Technical Field
The utility model relates to a binary channels probe adjustment mechanism belongs to steel detection equipment technical field that detects a flaw.
Background
With the continuous improvement of the requirements of customers on the quality of steel, the requirement of the purity of steel as an important index of the quality of steel is higher and higher. Therefore, the control and detection of the sizes of the internal macroscopic and microscopic defects in the steel become the key work content of metallurgical technologists and inspectors.
There are many nondestructive testing methods for detecting macroscopic purity inside steel, and ultrasonic flaw detection for steel is a more common method for detecting the quality of steel, and compared with other detection means, ultrasonic flaw detection has many advantages, such as: the device can be used for detection on the premise of not damaging a workpiece, and has the advantages of no pollution, no harm to a human body, accurate detection result, convenience in use, high speed, convenience in field detection and the like. In general, when a workpiece with a rough surface is inspected by a conventional water grinding method, the detection effect is often poor, and the water immersion ultrasonic inspection can be well suitable for the inspection of the workpiece. The water immersion ultrasonic detection method also has the characteristics of stable signal, high signal-to-noise ratio, easy realization of automation and the like. However, the signal intensity of the water immersion ultrasonic detection is very weak, so that the gain of the attenuator is often required to be adjusted to be very high to find the defect echo in the workpiece, and according to experimental research, when a probe with the same frequency is used, the difference between the signal intensity of the water immersion ultrasonic detection and the signal intensity of the water grinding method is about 20 dB. Therefore, the focusing probe is generally used for increasing the signal intensity in water immersion flaw detection, although the method can increase the signal intensity to a certain extent, the actual detection effect is not ideal due to the uneven distribution of the sound beam of the focusing probe, and the defect parameters existing in steel can be detected only by detecting flaws for many times, so that the detection time is greatly wasted, and the detection efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a binary channels probe adjustment mechanism is provided to above-mentioned prior art for the ultrasonic transducer of two simultaneous operations of installation adopts two probes that have different detection frequency to realize once surveying the defect of the different degree of depth, size that exist in the steel, shortens check-out time, improves and detects the accuracy.
The utility model provides a technical scheme that above-mentioned problem adopted does: a dual-channel probe adjusting mechanism is arranged on a module capable of ascending and descending in the Z-axis direction (vertical direction), and comprises a first probe frame and a second probe frame, wherein the first probe frame is fixed on the module, and the second probe frame is movably connected with the module through a fine adjustment mechanism and is used for fine adjustment of deflection of the second probe frame relative to the Z-axis direction; the bottom of the first probe frame and the bottom of the second probe frame are respectively movably connected with the corresponding first clamping port and the second clamping port through a horizontal adjusting mechanism and are used for adjusting the positions of the first clamping port and the second clamping port in the horizontal direction, the first clamping port is used for setting the first probe, and the second clamping port is used for setting the second probe.
The fine adjustment mechanism comprises a movable disc, an elastic ejector rod, an ejection dividing rod and a shifting block, wherein the movable disc is vertically arranged on the side face of the module, the movable disc can deflect in a vertical plane around a central shaft of the movable disc, the shifting block is fixed to the edge of the movable disc, the elastic ejector rod is located on one side of the shifting block and elastically abuts against the shifting block all the time, and the ejection dividing rod is located on the other side of the shifting block and reversely pushes the shifting block to enable the elastic ejector rod to be reversely resisted.
Horizontal adjustment mechanism includes fixed block, regulating block and adjusting screw, the fixed block is fixed in probe frame bottom, regulating block and centre gripping mouth fixed connection, the adjusting screw level sets up on the fixed block, and adjusting screw and regulating block threaded connection, regulating block can be along pivoted adjusting screw horizontal displacement.
Compared with the prior art, the utility model has the advantages of: a double-channel probe adjusting mechanism is directly arranged on a Z axis of a water immersion ultrasonic flaw detector, a test method for synchronously detecting internal macroscopic defects in steel through 2 probes with different frequencies is used for positioning and analyzing the defects, and meanwhile, the internal macroscopic purity of the steel is evaluated. The whole test period is short, the sample is not damaged, the test of the sample to be tested in a radial subarea mode is synchronously realized, the detection blind area of the sample is further reduced, the detection accuracy is improved, the comprehensive and rapid evaluation of the purity of the interior of the steel is facilitated, and the method is very important for further impurity positioning and anatomical qualitative analysis.
Drawings
Fig. 1 is a schematic view of a dual-channel probe adjusting mechanism according to an embodiment of the present invention;
in the figure, a module 1, a fine adjustment mechanism 2, a push-out micrometer 2.1, a movable disc 2.2, an elastic push-out rod 2.3, a dial block 2.4, a first probe holder 3, a second probe holder 4, a first clamping port 5, a second clamping port 6, a horizontal adjustment mechanism 7.1, a fixed block 7.2 and an adjusting screw 7.3 are arranged.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1, the dual channel probe adjustment mechanism in the present embodiment is provided on a module 1 that can be raised and lowered in the Z-axis direction. The adjusting mechanism comprises a first probe frame 3 and a second probe frame 4 which are arranged on the same side, wherein the first probe frame 3 is fixed on the module 1, the second probe frame 4 is movably connected with the module 1 through a fine adjustment mechanism 2, and the fine adjustment mechanism 2 finely adjusts the rotating angle of the second probe frame; the bottoms of the first probe frame 3 and the second probe frame 4 are respectively movably connected with the corresponding first clamping port 5 and the second clamping port 6 through a horizontal adjusting mechanism 7, and the horizontal adjusting mechanism 7 adjusts the directions of the first clamping port 5 and the second clamping port 6. The first probe is placed in the first clamping opening 5 and the second probe is placed in the second clamping opening 6. The height of the first probe and the second probe is adjusted through the position of the adjusting module 1 on the Z axis; the horizontal adjusting mechanism 7 adjusts the incident angle of the first probe; the horizontal adjusting mechanism 7 and the fine adjusting mechanism 2 adjust the incident angle of the second probe, and the double probes are synchronously detected, so that the subarea detection of the sample to be detected is realized, the detection time is effectively shortened, and the sample detection efficiency is greatly improved.
The fine adjustment mechanism comprises a movable disc 2.2, an elastic ejection rod 2.3, an ejection dividing rod 2.1 and a shifting block 2.4, wherein the movable disc 2.2 is vertically arranged on the side surface of the module 1, the movable disc 2.2 can deflect in a vertical plane around a central shaft thereof, the movable disc 2.2 is fixedly connected with the second probe frame 4, and when the movable disc 2.2 deflects, the second probe frame 4 deflects synchronously. The shifting block 2.4 is fixed on the top edge of the movable disc 2.2, the elastic ejector rod 2.3 is positioned on one side of the shifting block 2.4 and elastically abuts against the shifting block 2.4 all the time, the ejecting dividing rod 2.1 is positioned in the movable disc 2.2, and the ejecting dividing rod 2.1 is positioned on the other side of the shifting block 2.4 and reversely pushes the shifting block 2.4 to reversely resist the elastic ejector rod 2.3. When the ejecting dividing rod 2.1 approaches to the elastic ejecting rod 2.3, the ejecting dividing rod 2.1 props against the shifting block 2.4 to approach to the ejecting rod 2.3 and presses back the ejecting rod 2.3, and the shifting block 2.4 drives the movable disc 2.2 to deflect towards the elastic ejecting rod 2.3; when the ejecting quarter rod 2.1 is far away from the elastic ejecting rod 2.3, the elastic ejecting rod 2.3 is ejected and drives the shifting block 2.4 to be near to the ejecting quarter rod 2.1, and the shifting block 2.4 drives the movable disc 2.2 to deflect towards the ejecting quarter rod 2.1 side so as to adjust the deflection angle of the second probe frame 4.
The ejection dividing rod in this embodiment is a micrometer head of an outside micrometer.
The horizontal adjusting mechanism 7 comprises a fixed block 7.1 and an adjusting block 7.2, the fixed block 7.1 is fixed at the bottom of the probe frame, the adjusting block 7.2 is fixedly connected with the clamping port, a groove is arranged on the fixed block 7.1, a convex block is arranged on the adjusting block 7.2, the groove is matched with the convex block, and an adjusting screw 7.3 is inserted into the fixed block 7.1 and the adjusting block 7.2, so that the fixed block 7.1 is fixedly connected with the adjusting screw 7.3, and the adjusting block 7.2 is movably connected with the adjusting screw 7.3. When the adjusting screw 7.3 is rotated, the adjusting block 7.2 moves along the track of the adjusting screw 7.3, so that the position of the clamping block is adjusted.
A double-channel probe water immersion high-frequency ultrasonic flaw detection method specifically comprises the following steps:
the method comprises the following steps: arranging a double-channel probe adjusting mechanism on a module 1 of a Z axis of the water immersion high-frequency ultrasonic flaw detector, respectively arranging a 10MHz probe as a first probe and a 25MHz probe as a second probe in a first clamping port 5 and a second clamping port 6, connecting the two probes with a standard UHF interface, and connecting the two probes with image analysis software;
step two: placing the standard sample in a water tank of a high-frequency ultrasonic flaw detector, adjusting a horizontal adjusting mechanism 7, and then adjusting a fine adjusting mechanism 2 to ensure that the first probe, the second probe and the flat bottom hole on the standard sample are mutually vertical (namely the incident angle is 90 degrees); the distance between the first probe and the second probe and the water layer is adjusted through the position of the manual adjusting module 1 on the Z axis, so that the echo of the flat-bottom hole defect on the standard sample is maximum in amplitude; and locking the module. At this time, the gain is adjusted so that the amplitude is 80%, and the basic dB values of 2 probes are determined;
step three: taking a round bar sample with the length of about 300mm and the diameter of about 60mm, quenching and tempering, turning a leather on the surface of the round bar sample, and polishing to ensure that the smooth finish of the sample is 0.8 mu m and the bending degree is 1.8mm/m, thereby reducing a detection blind area;
step four: arranging the round bar sample obtained in the third step on a chuck of a water immersion high-frequency ultrasonic flaw detector water tank, starting a double-channel mode, carrying out system zero return on the water immersion ultrasonic flaw detector, firstly adjusting the incident angle of a first probe through a horizontal adjusting mechanism, wherein the incident angle is 90 degrees, adjusting the incident angle of a second probe through the horizontal adjusting mechanism and a fine adjusting mechanism, leading the incident angle to be also 90 degrees, and then adjusting the heights of the first probe and the second probe; inputting parameters such as sample parameters, flaw detection stepping and speed of the flaw detector and the like into the water immersion high-frequency ultrasonic flaw detector to realize synchronous scanning detection of the double probes;
step five: the double probes respectively form scanning images after the scanning is finished;
if the inclusions in the sample need to be positioned and analyzed, a scanning graph is opened through analysis software, the probe is moved to the position of the inclusions by using the probe return function, the sample is rotated by 360 degrees, when the reflection echo of the inclusions is maximum, a mark is made on the surface of the sample vertically below the probe, the mark is the position closest to the inclusions on the surface of the sample, and the size, the number and the distribution information of the inclusions are recorded.
The overall steps comprise ① installation of a dual-channel probe adjusting mechanism and a probe, ② calibration of a high-frequency ultrasonic flaw detector by using a standard sample, ③ sample processing, ④ simultaneous scanning detection of the dual probes after the sample is installed, and ⑤ scanning images are respectively formed according to the two frequency probes and respectively analyze and determine information such as size, quantity, distribution and the like of defects in the sample.
The utility model discloses a directly set up binary channels probe adjustment mechanism on water logging ultrasonic flaw detector, the test method of inside macroscopic defect comes to the defect location analysis in the probe synchronous detection steel through 2 different frequencies, evaluates the inside macroscopic purity degree of steel simultaneously. The whole test period is short, the sample is not damaged, the partitioned detection of the sample to be detected is synchronously realized, the detection blind area of the sample is further reduced, the detection accuracy is improved, the comprehensive and rapid evaluation of the purity of the interior of the steel is facilitated, and the method is very important for further inclusion positioning and anatomical qualitative analysis.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.
Claims (3)
1. A dual-channel probe adjusting mechanism is arranged on a module (1) capable of ascending and descending in the Z-axis direction, and is characterized in that: the device comprises a first probe frame (3) and a second probe frame (4), wherein the first probe frame (3) is fixed on a module, and the second probe frame (4) is movably connected with the module (1) through a fine adjustment mechanism (2) and is used for fine adjustment of deflection of the second probe frame (4) relative to the Z-axis direction; the probe device is characterized in that the bottoms of the first probe frame (3) and the second probe frame (4) are respectively movably connected with a corresponding first clamping port (5) and a corresponding second clamping port (6) through a horizontal adjusting mechanism (7) and used for adjusting the positions of the first clamping port (5) and the second clamping port (6) in the horizontal direction, the first clamping port (5) is used for setting a first probe, and the second clamping port (6) is used for setting a second probe.
2. The dual channel probe adjustment mechanism of claim 1, wherein: the fine adjustment mechanism (2) comprises a movable disc (2.2), an elastic ejection rod (2.3), an ejection dividing rod (2.1) and a shifting block (2.4), the movable disc (2.2) is vertically arranged on the side face of the module (1), the movable disc can deflect in a vertical plane around a central shaft of the movable disc, the shifting block (2.4) is fixed on the edge of the movable disc (2.2), the elastic ejection rod (2.3) is located on one side of the shifting block (2.4) and always elastically ejects the shifting block, and the ejection dial rod is located on the other side of the shifting block (2.4) and reversely pushes the shifting block (2.4) to enable the elastic ejection rod (2.3) to be reversely resisted.
3. The dual channel probe adjustment mechanism of claim 1, wherein: horizontal adjustment mechanism (7) are including fixed block (7.1), regulating block (7.2) and adjusting screw (7.3), fixed block (7.1) are fixed in probe frame bottom, regulating block (7.2) and centre gripping mouth fixed connection, adjusting screw (7.3) level sets up on fixed block (7.1), adjusting screw (7.3) and regulating block (7.2) threaded connection, and regulating block (7.2) can be along pivoted adjusting screw (7.3) horizontal displacement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921033668.0U CN211043254U (en) | 2019-07-04 | 2019-07-04 | Double-channel probe adjusting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921033668.0U CN211043254U (en) | 2019-07-04 | 2019-07-04 | Double-channel probe adjusting mechanism |
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| CN211043254U true CN211043254U (en) | 2020-07-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320283A (en) * | 2019-07-04 | 2019-10-11 | 江阴兴澄特种钢铁有限公司 | A kind of binary channels probe regulating mechanism and binary channels are popped one's head in the method for detection of water logging high-frequency ultrasonic |
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2019
- 2019-07-04 CN CN201921033668.0U patent/CN211043254U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320283A (en) * | 2019-07-04 | 2019-10-11 | 江阴兴澄特种钢铁有限公司 | A kind of binary channels probe regulating mechanism and binary channels are popped one's head in the method for detection of water logging high-frequency ultrasonic |
| CN110320283B (en) * | 2019-07-04 | 2024-05-17 | 江阴兴澄特种钢铁有限公司 | Dual-channel probe adjusting mechanism and dual-channel probe water immersion high-frequency ultrasonic flaw detection method |
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