CN210180980U - Ultrasonic excitation thermal wave imaging system and ultrasonic excitation thermal wave detection device - Google Patents
Ultrasonic excitation thermal wave imaging system and ultrasonic excitation thermal wave detection device Download PDFInfo
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- CN210180980U CN210180980U CN201920770345.3U CN201920770345U CN210180980U CN 210180980 U CN210180980 U CN 210180980U CN 201920770345 U CN201920770345 U CN 201920770345U CN 210180980 U CN210180980 U CN 210180980U
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Abstract
The utility model relates to an ultrasonic excitation heat wave imaging system and ultrasonic excitation heat wave detection device, ultrasonic excitation heat wave detection device includes frame, adjustment mechanism, pressure sensor, supersound rifle, spacing axle and lock piece, during the detection, locate spacing epaxial with the metal work piece cover, metal work piece can rotate for spacing axle, remove the position of spacing axle, with the relative position of adjusting spacing axle and supersound rifle, when treating the rifle head and metal work piece's surface contact, the spacing axle of lock piece locking prevents that spacing axle from continuing to remove. And rotating the metal workpiece to detect whether the metal workpiece has defects such as cracks or not in all directions. Because main part and pressure sensor set up in the other end of spring, the pressure that pressure sensor measured is the pressure that the ultrasonic gun received promptly, adjusts the pressure on rifle head and metal work piece surface through the magnitude of pressure that pressure sensor measured adjusts the compression volume of spring, and it is convenient quick to detect for ultrasonic gun work is in the measuring state of preferred, realizes nimble controllable purpose.
Description
Technical Field
The utility model relates to a metal defect detects technical field, especially relates to an ultrasonic excitation heat wave imaging system and ultrasonic excitation heat wave detection device.
Background
Metal is one of the materials commonly used in the modern industry, and castings made of metal materials are relatively hard. However, during the casting, welding, heat treatment, machining and use of metal products, temperature, inclusion, stress, corrosion, external force influence and the like often cause local permanent damage to the metal casting, and then cause problems, such as cracks. Therefore, crack detection of metal castings is very important.
The principle of the traditional ultrasonic excitation heat wave detection device is that ultrasonic waves are coupled into a metal casting through a probe, the ultrasonic waves are continuously reflected and propagated in the metal casting, all or part of the ultrasonic waves are reflected when the ultrasonic waves meet the interface of metal and cracks, the reflected ultrasonic waves are received by the probe, and different heights and waveforms can be displayed on an instrument screen through the processing of a circuit inside the instrument. The position, depth and shape of the crack can be determined from the waveform. However, the traditional ultrasonic excitation heat wave detection device cannot meet the requirements of the modern industry on convenience, rapidness, flexibility and controllability of test piece detection.
Disclosure of Invention
Therefore, it is necessary to provide an ultrasonic excitation thermal wave imaging system and an ultrasonic excitation thermal wave detection device, which are convenient, fast, flexible and controllable to detect, for the above technical problems.
An ultrasonically excited thermal wave detection device comprising:
a frame;
the adjusting mechanism is arranged on the rack and comprises a rod body and a spring, the spring is sleeved on the rod body, one end of the spring is fixed, and the other end of the spring can move relative to one end of the spring;
the pressure sensor is arranged at the other end of the spring;
the ultrasonic gun comprises a main body and a gun head arranged on the main body, wherein the main body is arranged at the other end of the spring;
the limiting shaft is movably arranged on the rack and can be far away from or close to the gun head; and
and the locking piece is used for locking the limiting shaft.
In one embodiment, the pressure sensor further comprises a stopper and a nut block, the rod body is a threaded rod, the stopper is fixed, the nut block is rotatably sleeved on the threaded rod, the nut block is fixedly connected with the other end of the spring, and the main body and the pressure sensor are fixed on the nut block.
In one embodiment, the screw rod further comprises a hand wheel, the hand wheel is arranged at one end of the screw rod, and the hand wheel is used for driving the screw rod to rotate.
In one embodiment, the device further comprises a front supporting seat and a rear supporting seat, wherein one end of the threaded rod is arranged on the front supporting seat, and the other end of the threaded rod is arranged on the rear supporting seat.
In one embodiment, the device further comprises a guide rail and a sliding block, the guide rail is arranged on the rack, the sliding block is arranged on the guide rail in a sliding mode, and the limiting shaft is fixed on the sliding block.
In one embodiment, the device further comprises a first sliding assembly, the first sliding assembly comprises a first sliding rail and a first sliding block, the first sliding block is arranged on the first sliding rail in a sliding manner, and the adjusting mechanism is arranged on the first sliding block;
still include second slip subassembly, second slip subassembly includes second slide rail and second sliding block, the second sliding block cunning is located on the second slide rail, the second slide rail set up in the frame, first slide rail with second slide rail space alternately sets up.
In one embodiment, the device further comprises a first sliding assembly, the first sliding assembly comprises a first sliding rail and a first sliding block, the first sliding block is slidably arranged on the first sliding rail, the adjusting mechanism is arranged on the first sliding block, and the first sliding rail is arranged on the rack; or
Still include second slip subassembly, second slip subassembly includes second slide rail and second sliding block, the second sliding block cunning is located on the second slide rail, the second slide rail set up in the frame, adjustment mechanism set up in on the second sliding block.
In one embodiment, the rack comprises a rack body and a working platform, the working platform is located at the top end of the rack body, and the adjusting mechanism, the limiting shaft and the locking piece are arranged on the working platform.
In one embodiment, the bottom of the frame body is provided with a roller; and/or
Still be provided with the display screen on the frame body, the display screen is used for showing pressure sensor's pressure value.
An ultrasonically excited thermal wave imaging system comprising:
an ultrasonically excited thermal wave detection device as claimed in any one of the preceding claims;
a computer electrically connected with the ultrasonic gun; and
and the thermal infrared imager is used for detecting the temperature of the metal workpiece.
The ultrasonic excitation thermal wave imaging system and the ultrasonic excitation thermal wave detection device at least have the following advantages:
during detection, the metal workpiece is sleeved on the limiting shaft, the metal workpiece can rotate relative to the limiting shaft, the position of the limiting shaft is moved, the relative position of the limiting shaft and the ultrasonic gun is adjusted, and when the gun head contacts with the surface of the metal workpiece, the locking piece locks the limiting shaft to prevent the limiting shaft from moving continuously. And rotating the metal workpiece to detect whether the metal workpiece has defects such as cracks or not in all directions. If the metal workpiece is in a special shape, in the process of rotating the metal workpiece, the pressure between the gun head and the surface of the metal workpiece is constantly changed, because the main body of the ultrasonic gun is arranged at the other end of the spring, and the pressure sensor is also arranged at the other end of the spring, the pressure measured by the pressure sensor is the pressure applied to the ultrasonic gun, the compression amount of the spring can be adjusted through the pressure measured by the pressure sensor, so that the pressure on the surfaces of the gun head and the metal workpiece is adjusted, the detection is convenient and quick, the ultrasonic gun works in a better measuring state, and the aim of flexibility and controllability is fulfilled.
Drawings
FIG. 1 is a schematic diagram of an ultrasound-excited thermal wave imaging system in accordance with an embodiment;
FIG. 2 is a partial schematic view of FIG. 1;
FIG. 3 is a partial schematic view of FIG. 2;
fig. 4 is another partial schematic view of fig. 2.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Referring to FIG. 1, an ultrasonically excited thermal wave imaging system 10 of one embodiment is capable of detecting defects in a metal workpiece 20. Specifically, the ultrasound-excited thermal wave imaging system 10 includes an ultrasound-excited thermal wave detection device 100, a computer 200, and a thermal infrared imager 300. Referring to fig. 2 and 3, the ultrasonic-excited thermal wave detection apparatus 100 includes a frame 110, an adjustment mechanism 120, a pressure sensor 130, an ultrasonic gun 140, a limiting shaft 150, and a locking member (not shown).
The frame 110 includes a frame body 111 and a working platform 112, the working platform 112 is located on the top end of the frame body 111, and the adjusting mechanism 120, the limiting shaft 150 and the locking member are disposed on the working platform 112. Specifically, the rack body 111 includes a bottom plate 113 and two side plates 114, the two side plates 114 are disposed in parallel and spaced apart from each other, and a retractable storage plate 115 is disposed between the two side plates 114. When the computer 200 is needed, the object placing plate 115 can be pulled out from between the side plates 114, and the computer 200 is placed on the object placing plate 115; when the computer 200 is not needed, the object placing plate 115 is pushed between the two side plates 114, so that the space is saved.
Further, the bottom of the frame body 111 is provided with a roller 116. Therefore, the ultrasonic excitation heat wave detection device 100 can be pushed to move conveniently, and the carrying is convenient. Of course, in other embodiments, the bottom of the rack body 111 can also be supported by the legs. The rack body 111 is further provided with a display screen 117, and the display screen 117 is used for displaying the pressure value of the pressure sensor 130. Specifically, the display screen 117 is disposed on an object placing plate 115 between the two side plates 114.
The adjusting mechanism 120 is disposed on the frame 110. Specifically, the adjustment mechanism 120 is disposed on the work platform 112. The adjusting mechanism 120 includes a rod 121 and a spring 122, the spring 122 is sleeved on the rod 121, one end of the spring 122 is fixed, and the other end of the spring 122 can move relative to one end of the spring 122. The pressure sensor 130 is disposed at the other end of the spring 122, and the ultrasonic gun 140 includes a main body 141 and a gun head 142 disposed on the main body 141, wherein the main body 141 is disposed at the other end of the spring 122. The limiting shaft 150 is movably arranged on the frame 110, the limiting shaft 150 can be far away from or close to the gun head 142, and the locking piece is used for locking the limiting shaft 150.
During detection, the metal workpiece 20 is sleeved on the limiting shaft 150, the metal workpiece 20 can rotate relative to the limiting shaft 150, the position of the limiting shaft 150 is moved to adjust the relative position of the limiting shaft 150 and the ultrasonic gun 140, and when the gun head 142 is in contact with the surface of the metal workpiece 20, the locking piece locks the limiting shaft 150 to prevent the limiting shaft 150 from moving continuously. The metal workpiece 20 is rotated to detect whether the metal workpiece 20 has a defect such as a crack or the like in all directions. If the metal workpiece 20 is in a special shape, in the process of rotating the metal workpiece 20, the pressure between the gun head 142 and the surface of the metal workpiece 20 changes constantly, because the main body 141 of the ultrasonic gun 140 is disposed at the other end of the spring 122, and the pressure sensor 130 is also disposed at the other end of the spring 122, the pressure measured by the pressure sensor 130 is the pressure applied to the ultrasonic gun 140, and the compression amount of the spring 122 can be adjusted by the pressure measured by the pressure sensor 130, so that the pressure between the gun head 142 and the surface of the metal workpiece 20 can be adjusted, the detection is convenient and fast, the ultrasonic gun 140 can work in a better measuring state, and the purpose of flexible and controllable operation is achieved.
Specifically, in this embodiment, the ultrasonic excitation thermal wave detection apparatus 100 further includes a stopper 150 and a nut block 160, the rod body 121 is a threaded rod, the stopper 150 is fixed, the nut block 160 is rotatably sleeved on the threaded rod, the nut block 160 is fixedly connected to the other end of the spring 122, and the main body 141 and the pressure sensor 130 are fixed on the nut block 160. Specifically, the ultrasonic excitation heat wave detection device 100 further includes a box 170, and the stopper 150 is fixed on the box 170.
Further, the ultrasonic excitation heat wave detection device 100 further comprises a hand wheel 180, the hand wheel 180 is arranged at one end of the threaded rod, and the hand wheel 180 is used for driving the threaded rod to rotate. The ultrasonic excitation thermal wave detection device 100 further includes a front supporting seat 191 and a rear supporting seat 192, one end of the threaded rod is disposed on the front supporting seat 191, and the other end of the threaded rod is disposed on the rear supporting seat 192. The threaded rod is rotatable relative to the front 191 and rear 192 support blocks.
Further, the ultrasonic excitation thermal wave detection device 100 further includes a support plate 193, the main body 141 of the ultrasonic gun 140 is disposed on the support plate 193, and the support plate 193 is disposed at the other end of the spring 122 and moves along with the movement of the other end of the spring 122, so as to improve the overall stability.
The pressure between the gun head 142 of the ultrasonic gun 140 and the surface of the metal workpiece 20 is obtained through the pressure sensor 130, when the pressure is too high, the hand wheel 180 can be rotated to rotate the threaded rod, so that the nut block 160 moves in the direction away from the metal workpiece 20, the nut block 160 drives the ultrasonic gun 140 to move in the direction away from the metal workpiece 20, and the pressure between the gun head 142 and the surface of the metal workpiece 20 is reduced. When the pressure is too low, it is indicated that the gun head 142 is not in direct contact with the metal workpiece 20 or is not in tight contact with the metal workpiece 20, the hand wheel 180 may be rotated in the opposite direction to rotate the threaded rod in the opposite direction, so that the nut block 160 moves in the direction close to the metal workpiece 20, the nut block 160 drives the ultrasonic gun 140 to move in the direction close to the metal workpiece 20, and the pressure between the gun head 142 and the surface of the metal workpiece 20 is increased to meet the requirement.
Of course, in other embodiments, the rod body 121 may also be a non-threaded rod, one end of the spring 122 is fixed by the stopper 150, and the other end of the spring 122 is connected to the telescopic rod of the cylinder, so that the compression and the extension are realized by the expansion and contraction of the cylinder.
The limiting shaft 150 is mainly used for placing the metal workpiece 20, the metal workpiece 20 can be a regular workpiece or an irregular special-shaped workpiece, the metal workpiece 20 is sleeved into the limiting shaft 150 through a through hole in the metal workpiece 20, the metal workpiece 20 can rotate relative to the limiting shaft 150, and therefore large-scale scanning of the metal workpiece 20 is achieved, all-dimensional multi-angle monitoring is achieved, and detection sensitivity of defect and crack characteristics is improved.
Referring to fig. 2 and 4, the ultrasonic excitation thermal wave detection apparatus 100 further includes a guide rail 101 and a slider 102, the guide rail 101 is disposed on the frame 110, the slider 102 is slidably disposed on the guide rail 101, and the limiting shaft 150 is fixed on the slider 102. Specifically, the ultrasonic excitation thermal wave detection apparatus 100 further includes a mounting plate 100a, and the stopper shaft 150 is fixed to the slider 102 through the mounting plate 100 a. Before detection, the relative position relationship between the metal workpiece 20 and the gun head 142 can be adjusted by adjusting the position of the slide block 102 on the guide rail 101, and after the relative position relationship is adjusted to a proper position, the limiting shaft 150 is locked by the locking piece, so that the limiting shaft 150 is prevented from moving randomly to influence the detection precision.
Referring to fig. 2, the ultrasonic excitation thermal wave detection apparatus 100 further includes a first sliding assembly, the first sliding assembly includes a first sliding rail 103 and a first sliding block 104, the first sliding block 104 is slidably disposed on the first sliding rail 103, and the adjusting mechanism 120 is disposed on the first sliding block 104. The ultrasonic excitation thermal wave detection apparatus 100 further includes a second sliding assembly, the second sliding assembly includes a second sliding rail 105 and a second sliding block (not shown), the second sliding block is slidably disposed on the second sliding rail 105, the second sliding rail 105 is disposed on the rack 110, and the first sliding rail 103 and the second sliding rail 105 are disposed in a spatial crossing manner. Therefore, the position of the ultrasonic gun 140 can be moved to adjust the relative position relationship between the gun head 142 and the metal workpiece 20, so as to ensure that the gun head 142 of the ultrasonic gun 140 is vertically aligned with the metal workpiece 20.
Of course, in another embodiment, the ultrasound-excited thermal wave detection apparatus 100 includes a first sliding component, the first sliding component includes a first sliding rail 103 and a first sliding block 104, the first sliding block 104 is slidably disposed on the first sliding rail 103, the adjusting mechanism 120 is disposed on the first sliding block 104, and the first sliding rail 103 is disposed on the frame 110. Or, the ultrasonic excitation thermal wave detection apparatus 100 includes a second sliding assembly, the second sliding assembly includes a second sliding rail 105 and a second sliding block, the second sliding block is slidably disposed on the second sliding rail 105, the second sliding rail 105 is disposed on the frame 110, and the adjustment mechanism 120 is disposed on the second sliding block.
Referring to fig. 1 and 2 again, the computer 200 is electrically connected to the ultrasonic gun 140, and the computer 200 is used for controlling the driver, so as to control whether the ultrasonic gun 140 emits the ultrasonic wave. The thermal infrared imager 300 is used to detect the temperature of the metal workpiece 20.
The computer 200 controls the ultrasonic gun 140 to make the ultrasonic gun 140 emit ultrasonic waves, and then the hand wheel 180 is rotated according to a signal fed back by the pressure sensor 130 connected with the spring 122 to realize the adjustment of the position of the ultrasonic gun 140, so that the pressure loaded on the metal workpiece 20 by the ultrasonic gun 140 meets the measurement condition.
Firstly, due to the continuous propagation and reflection of the ultrasonic waves emitted by the ultrasonic gun 140 in the metal workpiece 20, almost all the ultrasonic waves are reflected into the metal workpiece 20 when meeting the interface between the metal workpiece 20 and the air, the temperature of the defect of the metal workpiece 20 is higher than that of other parts due to the existence of cracks, then the focal length and the angle of the thermal infrared imager 300 are adjusted to be accurately aligned to the ultrasonic excitation part, and the temperature of the metal workpiece 20 is monitored in real time by the thermal infrared imager 300.
The real-time monitoring of the pressure at the gun head 142 of the ultrasonic gun 140 is realized by using a signal fed back by the pressure sensor 130, and the distance between the ultrasonic gun 140 and the metal workpiece 20 is adjusted by rotating the hand wheel 180 to operate the spring 122 in time, so that the ultrasonic gun 140 works in the optimal measurement state, and the controllability of the detection device is realized.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An ultrasonically excited thermal wave detection device, comprising:
a frame;
the adjusting mechanism is arranged on the rack and comprises a rod body and a spring, the spring is sleeved on the rod body, one end of the spring is fixed, and the other end of the spring can move relative to one end of the spring;
the pressure sensor is arranged at the other end of the spring;
the ultrasonic gun comprises a main body and a gun head arranged on the main body, wherein the main body is arranged at the other end of the spring;
the limiting shaft is movably arranged on the rack and can be far away from or close to the gun head; and
and the locking piece is used for locking the limiting shaft.
2. The ultrasonically-excited thermal wave detection device of claim 1, further comprising a stopper and a nut block, wherein the rod body is a threaded rod, the stopper is fixed, the nut block is rotatably sleeved on the threaded rod, the nut block is fixedly connected with the other end of the spring, and the main body and the pressure sensor are fixed on the nut block.
3. The ultrasonic excitation heat wave detection device of claim 2, further comprising a hand wheel disposed at one end of the threaded rod, the hand wheel being configured to drive the threaded rod to rotate.
4. The ultrasonically-excited thermal wave detection device according to claim 2, further comprising a front support base and a rear support base, wherein one end of the threaded rod is disposed on the front support base, and the other end of the threaded rod is disposed on the rear support base.
5. The ultrasonically-excited thermal wave detection apparatus according to any one of claims 1 to 4, further comprising a guide rail and a slider, wherein the guide rail is disposed on the frame, the slider is slidably disposed on the guide rail, and the limit shaft is fixed to the slider.
6. The ultrasonically-excited thermal wave detection device according to any one of claims 1 to 4, further comprising a first sliding assembly, wherein the first sliding assembly comprises a first slide rail and a first sliding block, the first sliding block is slidably disposed on the first slide rail, and the adjustment mechanism is disposed on the first sliding block;
still include second slip subassembly, second slip subassembly includes second slide rail and second sliding block, the second sliding block cunning is located on the second slide rail, the second slide rail set up in the frame, first slide rail with second slide rail space alternately sets up.
7. The ultrasonically-excited thermal wave detection device according to any one of claims 1 to 4, further comprising a first sliding assembly, wherein the first sliding assembly comprises a first sliding rail and a first sliding block, the first sliding block is slidably disposed on the first sliding rail, the adjustment mechanism is disposed on the first sliding block, and the first sliding rail is disposed on the rack; or
Still include second slip subassembly, second slip subassembly includes second slide rail and second sliding block, the second sliding block cunning is located on the second slide rail, the second slide rail set up in the frame, adjustment mechanism set up in on the second sliding block.
8. The ultrasonically-excited thermal wave detection device according to any one of claims 1 to 4, wherein the frame includes a frame body and a working platform, the working platform is located at a top end of the frame body, and the adjustment mechanism, the limit shaft and the lock member are disposed on the working platform.
9. The ultrasonically excited thermal wave detection device of claim 8, wherein the frame body is provided at a bottom thereof with rollers; and/or
Still be provided with the display screen on the frame body, the display screen is used for showing pressure sensor's pressure value.
10. An ultrasonically excited thermal wave imaging system, comprising:
the ultrasonically-excited thermal wave detection device of any one of claims 1 to 9;
a computer electrically connected with the ultrasonic gun; and
and the thermal infrared imager is used for detecting the temperature of the metal workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920770345.3U CN210180980U (en) | 2019-05-27 | 2019-05-27 | Ultrasonic excitation thermal wave imaging system and ultrasonic excitation thermal wave detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920770345.3U CN210180980U (en) | 2019-05-27 | 2019-05-27 | Ultrasonic excitation thermal wave imaging system and ultrasonic excitation thermal wave detection device |
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| CN210180980U true CN210180980U (en) | 2020-03-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161129A (en) * | 2019-05-27 | 2019-08-23 | 神华铁路货车运输有限责任公司 | Thermal wave imaging system and ultrasonic action thermal wave detection device is motivated by ultrasound |
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2019
- 2019-05-27 CN CN201920770345.3U patent/CN210180980U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110161129A (en) * | 2019-05-27 | 2019-08-23 | 神华铁路货车运输有限责任公司 | Thermal wave imaging system and ultrasonic action thermal wave detection device is motivated by ultrasound |
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Address after: 419, block C, Shenhua building, 16 ande Road, Dongcheng District, Beijing, 100010 Patentee after: Shenhua Railway Equipment Co.,Ltd. Address before: 100010 Shenhua Building, 16 Ander Road, Dongcheng District, Beijing, 17 Floors, Block C Patentee before: SHENHUA RAIL AND FREIGHT WAGONS TRANSPORT Co.,Ltd. |