Acoustic emission nondestructive testing device

Abstract

The utility model relates to an acoustic emission nondestructive testing device, including a fixed block and a mounting groove provided at the bottom of the fixed block, a probe is installed in the mounting groove, a magnet is fixedly connected to the bottom of the fixed block, a plurality of bottom grooves are provided at the bottom of the fixed block, a suction cup is provided in the bottom groove, an upper cavity is provided in the upper half of the fixed block, a hose is fixedly passed through the upper half of the suction cup, an end of the hose away from the corresponding suction cup extends to the lower half of the upper cavity, a piston is slidably connected in the upper cavity, and an adjustment part is provided above the piston. The utility model relates to the technical field of acoustic emission detection. The utility model can be fixed on a magnetic material by a magnet, can be adsorbed on a material to be tested by a suction cup, and can be tied to a material to be tested by a strap, so that the probe can be fixed in a variety of ways, thereby increasing the scope of application. The staff no longer needs to prepare and carry a variety of probe clamps, which reduces the detection cost and is convenient for the staff to use.

Description

Technical Field

[0001] The utility model relates to the technical field of acoustic emission detection, in particular to an acoustic emission nondestructive detection device. Background Art

[0002] Acoustic emission testing technology is a non-destructive testing method that uses the elastic wave signal generated by the energy released when solid materials break, deform or change phase to analyze and study material properties. Due to the harsh service environment, key equipment in service is prone to defects such as cracks during service. These defects can be detected through acoustic emission testing technology.

[0003] When conducting acoustic emission testing, it is necessary to apply a pre-tightening force to the probe to make it close to the surface of the test workpiece, so a probe fixture is needed. Different probe fixtures will be selected according to the properties of the material to be tested, so that the probe fixture is fixed on the surface of the material. Therefore, when testing multiple types of materials, the staff needs to prepare and carry multiple probe fixtures, which increases the testing cost and is inconvenient for the staff to use. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an acoustic emission nondestructive testing device to solve the technical problems mentioned in the above background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] The acoustic emission nondestructive testing device comprises a fixed block and a mounting groove provided at the bottom of the fixed block, a probe is installed in the mounting groove, a magnet is fixedly connected to the bottom of the fixed block, a plurality of bottom grooves are provided at the bottom of the fixed block, a suction cup is provided in the bottom groove, an upper cavity is provided in the upper half of the fixed block, a hose is fixedly passed through the upper half of the suction cup, an end of the hose away from the corresponding suction cup extends to the lower half of the upper cavity, a piston is slidably connected in the upper cavity, and an adjustment portion is provided above the piston.

[0007] Furthermore, the adjusting part includes a screw rod fixedly connected to the top of the piston, a threaded barrel is rotatably penetrated through the upper half of the fixed block, the upper half of the screw rod is threadedly connected in the threaded barrel, and a turntable is fixedly connected to the top of the threaded barrel.

[0008] Furthermore, a first spring is fixedly connected between the top of the suction cup and the corresponding inner top wall of the bottom groove. When the first spring is in a natural state, the lower half of the suction cup is located below the corresponding bottom groove.

[0009] Furthermore, a side cavity is opened in the fixed block, the inner wall of the side cavity is fixedly connected to a motor, the output end of the motor is transmission-connected to a driving rod, the outer peripheral surface of the driving rod is fixedly connected to a strap, the strap portion is wrapped around the outer peripheral surface of the driving rod, the strap slides through the inner wall of the side cavity and extends to the outside of the fixed block, one end of the strap located outside the fixed block is fixedly connected to a hook, and a side of the fixed block away from the hook is fixedly connected to a hanging ring.

[0010] Furthermore, a slide plate is slidably connected in the mounting groove, a plurality of second springs are fixedly connected between the slide plate and the top wall in the mounting groove, the probe is installed at the bottom of the slide plate, and when the second spring is in a natural state, the probe portion is located below the mounting groove.

[0011] Furthermore, the probe is fixedly connected to the slide plate by bolts.

[0012] In summary, the present invention includes at least one of the following beneficial technical effects:

[0013] 1. The acoustic emission nondestructive testing device can be fixed on the magnetic material by a magnet, can be adsorbed on the material to be tested by a suction cup, and can be tied to the material to be tested by a strap, so that the probe can be fixed in a variety of ways, which increases the scope of application. The staff no longer needs to prepare and carry a variety of probe fixtures, which reduces the testing cost and is convenient for the staff to use;

[0014] 2. In the acoustic emission nondestructive testing device, when the bottom surface of the fixing block is in contact with the material to be tested, the suction cup is tightly pressed against the material to be tested by the elastic force of the first spring, ensuring that no air leakage occurs between the suction cup and the material to be tested, thereby ensuring that the suction cup can be stably fixed on the material to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 is a three-dimensional diagram of the acoustic emission nondestructive testing device of this embodiment;

[0017] Figure 2 is a bottom view of the acoustic emission nondestructive testing device of this embodiment;

[0018] Figure 3 is a rear view of the internal structure of the acoustic emission nondestructive testing device of this embodiment;

[0019] Figure 4 It is a front internal view of the acoustic emission nondestructive testing device of this embodiment.

[0020] In the figure, 1, fixing block; 2, mounting groove; 3, probe; 4, magnet; 5, bottom groove; 6, suction cup; 7, upper chamber; 8, hose; 9, piston; 10, adjustment part; 101, screw; 102, threaded cylinder; 103, turntable; 11, first spring; 12, side chamber; 13, motor; 14, driving rod; 15, strap; 16, hook; 17, hanging ring; 18, slide plate; 19, second spring. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Example:

[0023] Reference Figures 1 to 4 The acoustic emission nondestructive testing device disclosed in the utility model comprises a fixed block 1 and a mounting groove 2 opened at the bottom of the fixed block 1, a probe 3 is installed in the mounting groove 2, a magnet 4 is fixedly connected to the bottom of the fixed block 1, a plurality of bottom grooves 5 are opened at the bottom of the fixed block 1, a suction cup 6 is arranged in the bottom groove 5, an upper cavity 7 is opened in the upper half of the fixed block 1, a hose 8 is fixedly penetrated in the upper half of the suction cup 6, an end of the hose 8 away from the corresponding suction cup 6 extends to the lower half of the upper cavity 7, a piston 9 is slidably connected in the upper cavity 7, and an adjusting part 10 is arranged above the piston 9.

[0024] In this embodiment, the magnet 4 is embedded in the fixing block 1, and the bottom surface of the magnet 4 is coplanar with the bottom surface of the fixing block 1. The suction cup 6 is connected to the corresponding bottom groove 5 in a sliding manner.

[0025] When testing magnetic materials, the fixed block 1 is placed at the position to be tested, and the magnet 4 is adsorbed on the magnetic material, so that the fixed block 1 remains fixed, and the probe 3 contacts the magnetic material. At this time, acoustic emission nondestructive testing can be performed on the magnetic material.

[0026] In a further preferred embodiment of the present invention, Figure 4 As shown, the adjusting part 10 includes a screw 101 fixedly connected to the top of the piston 9, a threaded barrel 102 is rotatably penetrated through the upper half of the fixed block 1, the upper half of the screw 101 is threadedly connected in the threaded barrel 102, and a turntable 103 is fixedly connected to the top of the threaded barrel 102.

[0027] In this embodiment, when testing the material to be tested, the bottom surface of the fixed block 1 is placed against the material to be tested, and then the turntable 103 is rotated. The turntable 103 drives the threaded barrel 102 to rotate, and the threaded barrel 102 drives the screw 101 and the piston 9 to rise. Negative pressure is formed under the piston 9. Since the interior of the suction cup 6 is connected to the lower half of the upper chamber 7 through the hose 8, there is also negative pressure in the suction cup 6. The suction cup 6 is fixed on the material to be tested, so that the fixed block 1 remains fixed, and the probe 3 contacts the material to be tested. At this time, acoustic emission non-destructive testing of the magnetic material can be performed.

[0028] In a further preferred embodiment of the present invention, Figure 2 As shown, a first spring 11 is fixedly connected between the top of the suction cup 6 and the corresponding inner top wall of the bottom groove 5 . When the first spring 11 is in a natural state, the lower half of the suction cup 6 is located below the corresponding bottom groove 5 .

[0029] In this embodiment, when the bottom surface of the fixing block 1 is in contact with the material to be tested, the suction cup 6 is pressed tightly against the material to be tested by the elastic force of the first spring 11, ensuring that no air leakage occurs between the suction cup 6 and the material to be tested, thereby ensuring that the suction cup 6 can be stably fixed on the material to be tested.

[0030] In a further preferred embodiment of the present invention, Figure 4 As shown, a side cavity 12 is opened in the fixed block 1, and a motor 13 is fixedly connected to the inner wall of the side cavity 12. The output end of the motor 13 is transmission-connected to a driving rod 14, and a strap 15 is fixedly connected to the outer peripheral surface of the driving rod 14. The strap 15 is partially wrapped around the outer peripheral surface of the driving rod 14, and the strap 15 slides through the inner wall of the side cavity 12 and extends to the outside of the fixed block 1. One end of the strap 15 located outside the fixed block 1 is fixedly connected to a hook 16, and a hanging ring 17 is fixedly connected to the side of the fixed block 1 away from the hook 16.

[0031] In this embodiment, when testing the material to be tested, the bottom surface of the fixed block 1 is attached to the material to be tested, and then the motor 13 is started to drive the driving rod 14 to rotate, so that the strap 15 is released, and the staff can pull out the strap 15, wrap the strap 15 around the outer periphery of the material to be tested, and then hang the hook 16 on the hanging ring 17, and then start the motor 13 to reverse, and the strap 15 is collected on the driving rod 14, so that the strap 15 is gradually tightened until the strap 15 can no longer be tightened. At this time, the fixed block 1 is fixed to the material to be tested by the strap 15, so that the fixed block 1 remains fixed, and the probe 3 contacts the material to be tested. At this time, acoustic emission non-destructive testing of the magnetic material can be performed.

[0032] In a further preferred embodiment of the present invention, Figure 4As shown, a slide plate 18 is slidably connected in the mounting groove 2, and a plurality of second springs 19 are fixedly connected between the slide plate 18 and the top wall of the mounting groove 2. The probe 3 is installed at the bottom of the slide plate 18, and when the second spring 19 is in a natural state, the probe 3 is partially located below the mounting groove 2.

[0033] In this embodiment, when the bottom surface of the fixing block 1 contacts the material to be tested, the probe 3 is pressed into the mounting groove 2, and the probe 3 is tightly attached to the surface of the test material under the elastic restoring force of the second spring 19, thereby ensuring good contact between the probe 3 and the test workpiece.

[0034] In a further preferred embodiment of the present invention, Figure 4 As shown, the probe 3 is fixedly connected to the slide plate 18 by bolts.

[0035] In this embodiment, the staff can remove the bolts to replace the probe 3 according to the actual situation, thereby improving the applicability of the device.

[0036] The implementation principle of this embodiment is:

[0037] This embodiment uses the device to provide three ways to install the probe 3, thereby increasing the scope of application.

[0038] 1. To detect magnetic materials, place the fixed block 1 at the position to be tested, and adsorb the magnet 4 on the magnetic material, so that the fixed block 1 remains fixed, and the probe 3 contacts the magnetic material. At this time, acoustic emission nondestructive testing can be performed on the magnetic material.

[0039] 2. Place the bottom surface of the fixed block 1 against the material to be tested, and then rotate the turntable 103. The turntable 103 drives the threaded barrel 102 to rotate, and the threaded barrel 102 drives the screw 101 and the piston 9 to rise. Negative pressure is formed under the piston 9. Since the inside of the suction cup 6 is connected to the lower half of the upper chamber 7 through the hose 8, there is also negative pressure in the suction cup 6. The suction cup 6 is fixed on the material to be tested, so that the fixed block 1 remains fixed, and the probe 3 contacts the material to be tested. At this time, acoustic emission non-destructive testing of magnetic materials can be performed.

[0040] 3. Place the bottom surface of the fixing block 1 on the material to be tested, and then start the motor 13 to drive the driving rod 14 to rotate, so that the strap 15 is released. The staff can pull out the strap 15 and wrap the strap 15 around the periphery of the material to be tested, and then hang the hook 16 on the hanging ring 17. Then start the motor 13 to reverse, and the strap 15 is collected on the driving rod 14. Therefore, the strap 15 is gradually tightened until the strap 15 can no longer be tightened. At this time, the fixing block 1 is fixed to the material to be tested by the strap 15, so that the fixing block 1 remains fixed, and the probe 3 contacts the material to be tested. At this time, acoustic emission non-destructive testing of magnetic materials can be performed.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An acoustic emission nondestructive testing device, comprising a fixing block (1) and a mounting groove (2) provided at the bottom of the fixing block (1), wherein a probe (3) is installed in the mounting groove (2), characterized in that: The bottom of the fixed block (1) is fixedly connected to a magnet (4), the bottom of the fixed block (1) is provided with a plurality of bottom grooves (5), a suction cup (6) is arranged in the bottom groove (5), an upper cavity (7) is arranged in the upper half of the fixed block (1), a hose (8) is fixedly passed through the upper half of the suction cup (6), an end of the hose (8) away from the corresponding suction cup (6) extends to the lower half of the upper cavity (7), a piston (9) is slidably connected in the upper cavity (7), and an adjustment portion (10) is arranged above the piston (9).

2. The acoustic emission nondestructive testing device according to claim 1, characterized in that: The adjusting portion (10) comprises a screw rod (101) fixedly connected to the top of the piston (9); a threaded barrel (102) is rotatably penetrated through the upper half of the fixed block (1); the upper half of the screw rod (101) is threadedly connected in the threaded barrel (102); and a rotating disk (103) is fixedly connected to the top of the threaded barrel (102).

3. The acoustic emission nondestructive testing device according to claim 2, characterized in that: A first spring (11) is fixedly connected between the top of the suction cup (6) and the inner top wall of the corresponding bottom groove (5); when the first spring (11) is in a natural state, the lower half of the suction cup (6) is located below the corresponding bottom groove (5).

4. The acoustic emission nondestructive testing device according to claim 1, characterized in that: The fixing block (1) is provided with a side cavity (12), the inner wall of the side cavity (12) is fixedly connected to a motor (13), the output end of the motor (13) is transmission-connected to a driving rod (14), the outer peripheral surface of the driving rod (14) is fixedly connected to a binding belt (15), the binding belt (15) is partially wound around the outer peripheral surface of the driving rod (14), the binding belt (15) slides through the inner wall of the side cavity (12) and extends to the outside of the fixing block (1), one end of the binding belt (15) located outside the fixing block (1) is fixedly connected to a hook (16), and a side of the fixing block (1) away from the hook (16) is fixedly connected to a hanging ring (17).

5. The acoustic emission nondestructive testing device according to claim 1, characterized in that: A slide plate (18) is slidably connected in the installation groove (2), and a plurality of second springs (19) are fixedly connected between the slide plate (18) and the inner top wall of the installation groove (2). The probe (3) is installed at the bottom of the slide plate (18), and when the second spring (19) is in a natural state, the probe (3) is partially located below the installation groove (2).

6. The acoustic emission nondestructive testing device according to claim 5, characterized in that: The probe (3) is fixedly connected to the slide plate (18) via bolts.

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