Experimental equipment based on ultrasonic nondestructive testing

Abstract

The utility model discloses experimental equipment based on ultrasonic nondestructive testing, and relates to the field of ultrasonic nondestructive testing, the experimental equipment based on ultrasonic nondestructive testing comprises an experimental table, an auxiliary mechanism is arranged at the top of the experimental table, through the structural arrangement, the experimental equipment based on ultrasonic nondestructive testing can realize matching of a transverse second lead screw and a longitudinal second lead screw; therefore, the horizontal position of the moving block can be conveniently adjusted, the impact piece can conveniently create the residual stress state at multiple points on the surface of the test sample plate, the experimental environment is more real, then the ultrasonic oblique incidence probe is rotated and adjusted, and the outer support of the support piece is fixed through the connecting block, so that it is ensured that the support piece is fixed at any position. The ultrasonic oblique incidence probe can guarantee the optimal detection angle, so that a three-dimensional stress distribution diagram is formed through feedback of ultrasonic waves released by the ultrasonic oblique incidence probe to the residual stress state area, the spatial position and strength of the stress concentration area are visually displayed, and the ultrasonic oblique incidence probe is more persuasive compared with appearance full-range detection data.

Description

Technical Field

[0001] The present application relates to the field of ultrasonic non-destructive testing, and in particular to an experimental device based on ultrasonic non-destructive testing. Background Art

[0002] Residual stress is the internal stress generated by uneven deformation or cooling of materials during manufacturing or processing. It has a significant impact on the performance and life of the material, especially in stress concentration areas, which may cause cracks and lead to premature failure of the material.

[0003] For example, application No. 202322659365.2 discloses a nondestructive testing device based on ultrasonic tomography, comprising a casing, the axis of which is arranged vertically; a limiting ring is connected to the inner wall of the casing, the axis of which coincides with the axis of the casing, and the limiting ring is sealed against the inner wall of the casing; a turntable is provided on the limiting ring, and the turntable is arranged on the limiting ring so as to rotate relative to the turntable; a plurality of detection components for tomography are provided on the casing, each detection component being arranged vertically in parallel and all located above the turntable; a driven bevel gear is provided below the turntable, a drive component for rotating the turntable is provided below the turntable, and the drive component is fixed to the inner wall of the casing; water is provided above the turntable, the water level is higher than the detection components, and the uppermost detection component is higher than the object to be detected. However, the following deficiencies still exist in actual use:

[0004] When the nondestructive testing equipment based on ultrasonic tomography of the above patent is actually used, the damage inside the structure is rotated by the turntable to drive the test object to perform ultrasonic surround detection. This method has certain limitations. It is not easy to detect local minor damage to the test object in a timely manner, resulting in insufficient data accuracy and inaccurate values. Utility Model Content

[0005] In order to improve the problem of insufficient accuracy in local detection, the present application provides an experimental device based on ultrasonic non-destructive testing.

[0006] The present application provides an experimental device based on ultrasonic non-destructive testing using the following technical solutions:

[0007] An experimental device based on ultrasonic non-destructive testing comprises an experimental table, a test sample is arranged on the top of the experimental table, and an auxiliary mechanism is arranged on the top of the experimental table;

[0008] The auxiliary mechanism includes a sliding frame slidably arranged on the top of the laboratory table, a moving block is slidably arranged on the inner wall of the sliding frame, an impact member is slidably arranged on the bottom of the moving block, a threaded column is rotatably arranged on the bottom of the moving block, a support member is arranged on one side of the threaded column, and an ultrasonic oblique incidence probe is fixedly arranged on the outer wall of the support member.

[0009] Preferably, the auxiliary mechanism also includes a fixed plate fixedly arranged on the top of the laboratory table, the side wall of the fixed plate is fixedly connected to a limit plate fixedly connected to the top of the laboratory table, the side wall of the fixed plate is movably penetrated by a first screw rod, and the side wall of the first screw rod is threadedly penetrated by a sliding block that fits with the top of the laboratory table, one end of the first screw rod is fixedly connected to the turntable, and the end of the first screw rod away from the turntable is fixedly penetrated by a pulley, and a transmission belt is connected to the two pulleys for transmission. A connecting rod is rotatably provided on the side wall of the sliding block, and the end of the connecting rod away from the turntable is movably penetrated by a rotating pile, and the end of the rotating pile away from the connecting rod is fixedly connected to the side wall of the sliding frame, and the side wall of the sliding frame is movably penetrated by a second screw rod, and the side wall of the sliding frame is penetrated by a sliding groove that is slidably connected to the second screw rod.

[0010] Preferably, one end of the second screw is fixedly connected to a driving member, the side wall of the second screw is threadedly penetrated by the side wall of the moving block, and the side wall of the sliding frame is fixedly connected to a vertical sliding bar that movably penetrates the top of the laboratory table.

[0011] Preferably, a connecting plate is fixedly connected to the bottom of the moving block, a transverse plate is fixedly connected to the side wall of the connecting plate, and a structural frame is fixedly connected to the top of the transverse plate.

[0012] Preferably, a sliding column is movably passed through the top of the structural frame, the outer wall of the sliding column is provided with a spring whose top is fixedly connected to the top of the inner wall of the structural frame, and the bottom of the spring is fixedly connected to a linkage disc fixedly passed through the side wall of the sliding column.

[0013] Preferably, the bottom of the sliding column is fixedly connected to the top of the impact member, the bottom of the moving block is fixedly connected to a connecting block, and the side wall of the connecting block is fixedly penetrated by the outer wall of the support member.

[0014] Preferably, the inner wall of the expansion member is threadedly connected to the outer wall of the threaded column, one end of the threaded column away from the expansion member is fixedly connected to a rotating cylinder, and an ultrasonic oblique-incidence probe is movably penetrated through the outer wall of the expansion member.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. The cooperation of the second transverse and longitudinal screw rods makes it easy to adjust the horizontal position of the moving block, so that the impact part can create a residual stress state at multiple points on the surface of the test specimen, making the experimental environment more realistic. Subsequently, the ultrasonic oblique incidence probe is rotated and adjusted, and the outer support of the support part is fixed by the connecting block, so as to ensure that the ultrasonic oblique incidence probe can maintain the optimal detection angle at any position. The ultrasonic oblique incidence probe releases ultrasonic feedback to the residual stress state area to form a three-dimensional stress distribution map, which not only intuitively shows the spatial position and intensity of the stress concentration area, but also provides engineers with a powerful tool to help them evaluate the integrity and safety of the structure. In practical applications, this method can achieve accurate stress monitoring and defect prediction, help to take preventive measures in time, extend the service life of the material and ensure safety, and is more convincing than the full-range detection data of the appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an overall display diagram of the experimental equipment based on ultrasonic non-destructive testing for this application;

[0018] Figure 2 This is a partial display diagram of the turntable of the experimental equipment based on ultrasonic non-destructive testing in this application;

[0019] Figure 3 This is a partial display diagram of the sliding block of the experimental equipment based on ultrasonic non-destructive testing in this application;

[0020] Figure 4 This is a partial display diagram of the sliding frame of the experimental equipment based on ultrasonic non-destructive testing in this application;

[0021] Figure 5 This is a partial display diagram of the moving block of the experimental equipment based on ultrasonic non-destructive testing in this application;

[0022] Figure 6 This is a partial display diagram of the structure frame of the experimental equipment based on ultrasonic non-destructive testing in this application;

[0023] Figure 7 This is a partial display diagram of the ultrasonic oblique-incidence probe of the experimental equipment based on ultrasonic non-destructive testing in this application;

[0024] Figure 8 This is a side sectional view of the threaded column of the experimental equipment based on ultrasonic non-destructive testing in this application.

[0025] Reference numerals:

[0026] 1. Experimental bench;

[0027] 2. Auxiliary mechanism; 21. Fixed plate; 22. Limiting plate; 23. First screw; 24. Sliding block; 25. Turntable; 26. Pulley; 27. Transmission belt; 28. Connecting rod; 29. Rotating pile; 210. Sliding frame; 211. Second screw; 212. Sliding slot; 213. Driving member; 214. Moving block; 215. Vertical sliding bar;

[0028] 216, connecting plate; 217, transverse plate; 218, structural frame; 219, sliding column; 220, spring; 221, linkage disc; 222, impact member; 223, connecting block; 224, threaded column; 225, rotating cylinder; 226, expansion member; 227, ultrasonic oblique incidence probe;

[0029] 3. Test sample. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1-8 This application is described in further detail.

[0031] The embodiment of the present application discloses an experimental device based on ultrasonic non-destructive testing.

[0032] Reference Figure 1 An experimental device based on ultrasonic non-destructive testing includes a test bench 1, a test sample 3 is placed on the top of the test bench 1 for subsequent testing, and an auxiliary mechanism 2 is provided on the top of the test bench 1.

[0033] Reference Figure 2 、 Figure 3The auxiliary mechanism 2 includes a sliding frame 210 slidably set on the top of the experimental table 1, a moving block 214 is slidably set on the inner wall of the sliding frame 210, an impact member 222 is slidably set on the bottom of the moving block 214, a threaded column 224 is rotatably set at the bottom of the moving block 214, a support member 226 is set on one side of the threaded column 224, and an ultrasonic oblique incidence probe 227 is fixedly set on the outer wall of the support member 226. The auxiliary mechanism 2 also includes a fixed plate 21 fixedly set on the top of the experimental table 1, the side wall of the fixed plate 21 is fixedly connected to the side wall of the limit plate 22, and the bottom of the limit plate 22 is fixedly connected to the top of the experimental table 1. A circular hole 1 is opened through the side wall of the fixed plate 21, and the first screw rod 23 movably passes through the circular hole 1, so that the first screw rod 23 and the fixed The fixed plate 21 is rotatably connected, and an internal threaded hole 1 is opened through the side wall of the sliding block 24, and the side wall of the first screw rod 23 is threaded through the internal threaded hole 1, so that the sliding block 24 is threadedly connected to the fixed plate 21, and the bottom of the sliding block 24 is in contact with the top of the experimental table 1, and the side walls on both sides of the sliding block 24 are in contact with the inner wall of the limiting plate 22, so as to further limit the position, and the turntable 25 is fixedly connected to one end of the first screw rod 23, so that the first screw rod 23 can be driven to rotate by the turntable 25, and a circular hole 2 is opened through the side wall of the pulley 26, and the end of the first screw rod 23 away from the turntable 25 is fixedly passed through the circular hole 2, so that the first screw rod 23 is fixedly connected to the pulley 26, so that when the turntable 25 rotates, the pulley 26 can be driven to rotate synchronously.

[0034] Reference Figure 4 、 Figure 5 , the transmission belt 27 is set between the two pulleys 26, so that one pulley 26 can drive the second pulley 26 to rotate synchronously through the transmission belt 27, the side wall of the sliding block 24 is fixedly connected with a shaft body, and the end of the connecting rod 28 close to the sliding block 24 is rotatably connected to the shaft body, so that the sliding block 24 is rotatably connected to the connecting rod 28, and the end of the connecting rod 28 away from the turntable 25 is penetrated by a round hole three, and the rotating pile 29 is movable through the round hole three, so that the rotating pile 29 is rotatably connected to the connecting rod 28, and the end of the rotating pile 29 away from the connecting rod 28 is fixedly connected to the side wall of the sliding frame 210, so that the rotating pile 29 and the sliding frame 210 can move synchronously, and the side of the sliding frame 210 A sliding groove 212 is provided through the wall, and the second screw rod 211 is slidably connected to the inside of the sliding groove 212, so that the second screw rod 211 can rotate and slide horizontally at the same time, and the driving member 213 is fixedly connected to one end of the second screw rod 211, so that the second screw rod 211 can be driven to rotate by the driving member 213, and the side wall of the moving block 214 is provided with two internal threaded holes in the horizontal and vertical directions, and a second screw rod 211 is provided in the longitudinal and horizontal directions. The side wall of the second screw rod 211 is threadedly penetrated by the two internal threaded holes, so that the second screw rod 211 is threadedly connected to the moving block 214, so that the horizontal position of the moving block 214 can be adjusted by rotating the second screw rod 211.

[0035] Reference Figure 5 、 Figure 6 The side wall of the sliding frame 210 is fixedly connected to the side of the vertical sliding bar 215 close to the sliding frame 210. A sliding hole is opened on the top of the experimental table 1, and the vertical sliding bar 215 is movable through the sliding hole, so that the vertical sliding bar 215 is slidably connected to the experimental table 1, thereby limiting the sliding frame 210 through the vertical sliding bar 215, so that the sliding frame 210 can only move vertically, the connecting plate 216 is fixedly connected to the bottom of the moving block 214, and the horizontal plate 217 is fixedly connected to the side wall of the connecting plate 216, so that the horizontal plate 217 can move synchronously with the moving block 214, and the structural frame 218 is fixedly connected to the top of the horizontal plate 217. The top of the structural frame 218 is movable A circular hole four is opened through it, and the sliding column 219 moves through the circular hole four, so that the sliding column 219 is slidably connected to the structural frame 218. A circular hole five is opened through the top of the horizontal plate 217, and the sliding column 219 moves through the circular hole five, so that the sliding column 219 is slidably connected to the horizontal plate 217. The spring 220 is sleeved on the outer wall of the sliding column 219, and the top of the spring 220 is fixedly connected to the top of the inner wall of the structural frame 218. The bottom of the spring 220 is fixedly connected to the top of the linkage disc 221. A circular hole six is opened through the top of the linkage disc 221, and the side wall of the sliding column 219 is fixedly passed through the circular hole six, so that the linkage disc 221 is fixedly connected to the sliding column 219.

[0036] Reference Figure 7 、 Figure 8 The top of the impact member 222 is fixedly connected to the bottom of the sliding column 219, so that the sliding column 219 can drive the spring 220 to move vertically. The top of the connecting block 223 is fixedly connected to the bottom of the moving block 214, so that the connecting block 223 can move with the moving block 214. The side wall of the connecting block 223 is fixedly penetrated with the outer wall of the opening member 226, so that the opening member 226 is fixed by the connecting block 223. The opening member 226 is made of plastic material and is away from the connecting block 2 One side of 23 is in an inward state, and the outer wall of the threaded column 224 is threadedly connected to the inner wall of the support member 226, so that the support member 226 can be supported outward from the side of the connecting block 223 through the threaded column 224. The rotating cylinder 225 is fixedly connected to the end of the threaded column 224 away from the support member 226. A circular hole six is opened through the side wall of the ultrasonic oblique-incidence probe 227, and the outer wall of the support member 226 is movable through the circular hole six, so that the support member 226 can move through the side wall of the ultrasonic oblique-incidence probe 227.

[0037] Among them, the ultrasonic oblique-incidence probe 227 is an existing technology, and its structural principle will not be described in detail. It also includes a function generator, a digital oscilloscope, a high-frequency power amplifier, etc., which are not the main technologies and their structural principles will not be described in detail.

[0038] The implementation principle of an experimental device based on ultrasonic non-destructive testing in the embodiment of the present application is as follows:

[0039] First, the staff connects the detection equipment to the power supply to prepare for the subsequent detection link. Then the staff first rotates the horizontal driving member 213, thereby driving the second screw rod 211 to rotate through the driving member 213, thereby driving the moving block 214 to move longitudinally. The moving block 214 will also drive the second horizontally set screw rod 211 to slide synchronously. When reaching the target position, the staff stops rotating the horizontal driving member 213, and then rotates the longitudinal driving member 213, so that the moving block 214 moves laterally, so that the lower end of the impact member 222 at the bottom of the moving block 214 is aligned with the damage point marked in advance on the surface of the test sample 3. Then the staff stops rotating the driving member 213, so that the moving block 214 is in a suspended state, and then the staff rotates the turntable 25. The turntable 25 will drive the first screw rod 23 to rotate. The rotation of the first screw rod 23 will drive the sliding block 24 to move horizontally away from each other, and the limited sliding block 24 through the limit plate 22 will not rotate on its own.

[0040] When the sliding block 24 moves horizontally, the sliding block 24 will drive the inclination degree of the connecting rod 28 to increase, thereby driving the sliding frame 210 to move horizontally downward. The sliding frame 210 will drive the moving block 214 to move horizontally downward through the second screw rod 211, so that the bottom of the impact member 222 is in contact with the upper surface of the test sample 3. Then the staff pulls the sliding column 219, and the sliding column 219 will drive the linkage disc 221 to move vertically upward. The sliding column 219 will also drive the impact member 222 to move vertically upward. When the linkage disc 221 moves vertically upward, the spring 220 will be compressed to accumulate force. When the sliding column 219 is released again, the spring 220 will drive the impact member 222 to move downward rapidly, so that the bottom of the impact member 222 will impact the failure point marked on the top of the test sample 3, thereby creating a residual stress state of the test sample 3. Then the staff connects the ultrasonic oblique incidence probe 227 to the instrument, and then movably connects the ultrasonic oblique incidence probe 227 to the support member 226.

[0041] After adjusting the inclination angle of the ultrasonic oblique-incidence probe 227, the staff rotates the rotating cylinder 225, and the rotating cylinder 225 will drive the threaded column 224 to rotate synchronously, and the threaded column 224 will move horizontally. As the threaded column 224 moves horizontally, it will drive the expansion piece 226 away from the side of the connecting block 223 and gradually expand outward, thereby fitting the inner wall of the ultrasonic oblique-incidence probe 227, thereby fixing the ultrasonic oblique-incidence probe 227 for subsequent strength testing, so that the peak stereogram formed by the ultrasonic feedback released by the ultrasonic oblique-incidence probe 227 is convenient for detecting the residual stress concentration area inside the solid material.

[0042] The above are merely optional embodiments of the present disclosure and are not intended to limit the present disclosure. Those skilled in the art will readily appreciate that the present disclosure may be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. An experimental device based on ultrasonic non-destructive testing, comprising an experimental table (1), a test sample (3) being arranged on the top of the experimental table (1), and characterized in that: An auxiliary mechanism (2) is provided on the top of the experimental platform (1); The auxiliary mechanism (2) comprises a sliding frame (210) slidably arranged on the top of the laboratory table (1); a moving block (214) is slidably arranged on the inner wall of the sliding frame (210); an impact member (222) is slidably arranged on the bottom of the moving block (214); a threaded column (224) is rotatably arranged on the bottom of the moving block (214); a support member (226) is arranged on one side of the threaded column (224); and an ultrasonic oblique-incidence probe (227) is fixedly arranged on the outer wall of the support member (226).

2. The ultrasonic non-destructive testing experimental equipment according to claim 1, characterized in that: The auxiliary mechanism (2) further comprises a fixed plate (21) fixedly arranged on the top of the experimental table (1), a side wall of the fixed plate (21) is fixedly connected to a limit plate (22) fixedly connected to the top of the experimental table (1), a first screw rod (23) is movably passed through the side wall of the fixed plate (21), a sliding block (24) affixed to the top of the experimental table (1) is threadedly passed through the side wall of the first screw rod (23), one end of the first screw rod (23) is fixedly connected to a turntable (25), and the end of the first screw rod (23) away from the turntable (25) is fixedly passed through a pulley ( 26), a transmission belt (27) is connected between the two pulleys (26), a connecting rod (28) is rotatably provided on the side wall of the sliding block (24), an end of the connecting rod (28) away from the turntable (25) is movably penetrated by a rotating pile (29), an end of the rotating pile (29) away from the connecting rod (28) is fixedly connected to the side wall of the sliding frame (210), a second screw rod (211) is movably penetrated through the side wall of the sliding frame (210), and a sliding groove (212) is opened on the side wall of the sliding frame (210) and is slidably connected to the second screw rod (211).

3. The ultrasonic non-destructive testing experimental equipment according to claim 2, characterized in that: One end of the second screw rod (211) is fixedly connected to a driving member (213), a side wall of the second screw rod (211) and a side wall of the moving block (214) are threadedly connected, and a side wall of the sliding frame (210) is fixedly connected to a vertical sliding bar (215) that movably passes through the top of the laboratory table (1).

4. The ultrasonic non-destructive testing experimental equipment according to claim 3, characterized in that: The bottom of the moving block (214) is fixedly connected to a connecting plate (216), the side wall of the connecting plate (216) is fixedly connected to a transverse plate (217), and the top of the transverse plate (217) is fixedly connected to a structural frame (218).

5. The ultrasonic non-destructive testing experimental equipment according to claim 4, characterized in that: A sliding column (219) is movably passed through the top of the structural frame (218); the outer wall of the sliding column (219) is provided with a spring (220) whose top is fixedly connected to the top of the inner wall of the structural frame (218); and the bottom of the spring (220) is fixedly connected to a linkage disc (221) fixedly passed through the side wall of the sliding column (219).

6. The ultrasonic non-destructive testing experimental equipment according to claim 5, characterized in that: The bottom of the sliding column (219) is fixedly connected to the top of the impact member (222), the bottom of the moving block (214) is fixedly connected to the connecting block (223), and the side wall of the connecting block (223) is fixedly penetrated by the outer wall of the expansion member (226).

7. The ultrasonic non-destructive testing experimental equipment according to claim 6, characterized in that: The inner wall of the support member (226) is threadedly connected to the outer wall of the threaded column (224); one end of the threaded column (224) away from the support member (226) is fixedly connected to a rotating cylinder (225); and an ultrasonic oblique-incidence probe (227) is movably penetrated through the outer wall of the support member (226).

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