A new type of pressure-adjustable magnetic suction type ultrasonic probe presser

Abstract

The utility model discloses a novel magnetic suction type ultrasonic probe presser of adjustable pressure, specifically related to the ultrasonic detection equipment field, including equipment ontology and ultrasonic probe ontology, the equipment ontology four corners are fixedly installed with adsorption device, the equipment ontology inside is provided with working chamber, installs pressure exerting device in the working chamber. The utility model discloses a novel magnetic suction type ultrasonic probe presser of adjustable pressure, realizes the accurate, adjustable and stable keeping of probe pressure through pressure exerting device, fundamentally solves the pressure fluctuation problem of traditional handheld operation because of human factors, and the adsorption device is set to make equipment can be quickly fixed on the detection workpiece surface, and the adaptability and portability under the harsh industrial environment are greatly improved. The device can significantly reduce the labor intensity of the operator while guaranteeing the consistency and reliability of the detection result, realizes the efficient, accurate nondestructive testing operation.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic testing equipment, and in particular to a novel magnetic ultrasonic probe press with adjustable pressure. Background Technology

[0002] With the continuous advancement of industrial automation and quality control, ultrasonic non-destructive testing technology, due to its non-destructive, real-time, high sensitivity, and low cost, is widely used in industries such as aerospace, petrochemicals, special equipment, and transportation. However, most current ultrasonic testing still uses handheld probes, which presents numerous instabilities. Handheld operation heavily relies on the operator's experience and control; the pressure applied when the probe contacts the workpiece surface is difficult to maintain consistently, causing fluctuations in the amplitude of the defect echo signal, potentially leading to misjudgments or missed detections. Furthermore, maintaining manual pressure for extended periods increases operator fatigue. In addition, while traditional fixed probe methods, such as large scanning frames, can partially alleviate these problems, their bulky and inconvenient structure makes them unsuitable for flexible applications in complex testing environments. Utility Model Content

[0003] The main purpose of this invention is to provide a novel magnetic ultrasonic probe press with adjustable pressure, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A novel adjustable pressure magnetic ultrasonic probe press includes a device body and an ultrasonic probe body. Adsorption devices are fixedly installed at all four corners of the device body. A working cavity is formed inside the device body, and a pressure applying device is installed within the working cavity. A mounting groove is formed at the bottom of the device body below the working cavity. A fixing block is fixedly installed at the upper end of the device body. The pressure applying device includes a screw, which is rotatably mounted in the middle of the fixing block. A knob is fixedly mounted at the top of the screw. A slider is rotatably mounted at the bottom of the screw, penetrating the fixing block and the device body and extending into the working cavity. The screw is connected to the device body... The device features a threaded connection, with the slider slidably connected to the side wall of the working cavity. An installation block is provided within the mounting groove, and a probe slot is formed at the bottom of the installation block. The ultrasonic probe body is installed within the probe slot. A second connecting block is fixedly installed on the top of the installation block, and the top of the second connecting block slides through the device body and extends into the working cavity. A first connecting block is fixedly installed at the bottom of the slider. A spring is installed between the first and second connecting blocks. A nut is threaded onto the outer surface of the screw on the upper side of the fixed block. A device slot is formed on one side of the upper end of the device body, and a single-chip microcomputer pressure display device is installed within the device slot.

[0005] Preferably, annular grooves are provided at the bottom of the first connecting block and the top of the second connecting block, and the upper and lower ends of the spring are installed in the upper and lower annular grooves.

[0006] Preferably, the adsorption device includes a connecting plate and two support blocks. Each of the two support blocks has a mounting hole on one side close to the other. A rotating rod is rotatably mounted between the two mounting holes. A permanent magnet wheel is sleeved on the outer surface of the rotating rod. The connecting plate is fixedly mounted on one side of the device body. Two symmetrical guide grooves are opened on the outer side of the connecting plate. A convex groove is opened at the bottom of the guide groove. A convex block is fixedly mounted on one end of the support block near the connecting plate. The convex block is engaged in the convex groove.

[0007] Preferably, a thin-film pressure sensor is mounted on top of the ultrasonic probe body.

[0008] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses a novel adjustable-pressure magnetic ultrasonic probe press. Through a pressure application device, it achieves precise, adjustable, and stable probe pressure, fundamentally solving the pressure fluctuation problem caused by human factors in traditional handheld operation. The adsorption device allows the device to be quickly fixed to the surface of the workpiece being tested, greatly improving its adaptability and portability in harsh industrial environments. Operators no longer need to manually grip and press down the probe for extended periods; they can simply move the device, significantly reducing physical exertion and fatigue. Combined with an integrated pressure sensor and display device, it enables real-time pressure monitoring and data digitization, effectively promoting the standardization of the testing process. This device significantly reduces operator workload while ensuring consistent and reliable test results, achieving efficient and accurate non-destructive testing. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the adsorption device of this utility model.

[0010] In the diagram: 1. Equipment body; 2. Microcontroller pressure display device; 3. Pressure application device; 4. Fixing block; 5. Adsorption device; 6. Ultrasonic probe body; 101. Equipment slot; 102. Working chamber; 103. Mounting slot; 31. Knob; 32. Screw; 33. Nut; 34. Slider; 35. First connecting block; 36. Spring; 37. Second connecting block; 38. Annular groove; 39. Mounting block; 51. Connecting plate; 511. Guide groove; 512. Convex groove; 52. Support block; 53. Rotating rod; 54. Permanent magnet wheel; 55. Convex block; 521. Mounting hole. Detailed Implementation

[0011] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0012] like Figure 1-3 As shown, a novel adjustable pressure magnetic ultrasonic probe press includes a device body 1 and an ultrasonic probe body 6. Adsorption devices 5 are fixedly installed at all four corners of the device body 1. A working cavity 102 is formed inside the device body 1, and a pressure applying device 3 is installed within the working cavity 102. A mounting groove 103 is formed at the bottom of the device body 1 below the working cavity 102. A fixing block 4 is fixedly installed at the upper end of the device body 1. The pressure applying device 3 includes a screw 32, which is rotatably mounted in the middle of the fixing block 4. A knob 31 is fixedly mounted at the top of the screw 32. The bottom of the screw 32 passes through the fixing block 4 and the device body 1, extends into the working cavity 102, and is rotatably mounted with a slider 34. The screw 32 is threadedly connected to the device body 1, and the slider 34 is slidably connected to the side wall of the working cavity 102. A mounting block 39 is provided in the mounting groove 103, and a probe groove is formed at the bottom of the mounting block 39. The ultrasonic probe body 6 is mounted on... Inside the probe slot, a second connecting block 37 is fixedly mounted on the top of the mounting block 39. The top of the second connecting block 37 slides through the device body 1 and extends into the working chamber 102. A first connecting block 35 is fixedly mounted on the bottom of the slider 34. A spring 36 is installed between the first connecting block 35 and the second connecting block 37. A nut 33 is threaded onto the outer surface of the screw 32 on the upper side of the fixing block 4. A device slot 101 is opened on one side of the upper end of the device body 1. A single-chip microcomputer pressure display device 2 is installed in the device slot 101. Through the mechanical pressure application device 3 composed of the knob 31, screw 32, and spring 36, the compression of the spring 36 can be precisely and continuously linearly adjusted, thereby controlling the output pressure. Once the screw 32 is locked by the nut 33, the entire pressure application system is rigidly locked, and the deformation of the spring 36 is fixed, so that the pressure applied to the probe during the detection process remains constant. This ensures a high degree of consistency in the coupling state between the probe and the workpiece, thereby obtaining a stable and repeatable detection signal, greatly improving the reliability and comparability of the detection results.

[0013] Both the bottom of the first connecting block 35 and the top of the second connecting block 37 are provided with annular grooves 38. The upper and lower ends of the spring 36 are installed in the two annular grooves 38, which can effectively prevent the spring 36 from coming out or shifting when it is compressed, thus ensuring the stability of the force transmission path and the reliability of the entire device.

[0014] The adsorption device 5 includes a connecting plate 51 and two support blocks 52. Each support block 52 has a mounting hole 521 on one side close to the other. A rotating rod 53 is rotatably mounted between the two mounting holes 521. A permanent magnet wheel 54 is fitted onto the outer surface of the rotating rod 53. The connecting plate 51 is fixedly mounted on one side of the device body 1. Two symmetrical guide grooves 511 are formed on the outer side of the connecting plate 51. A convex groove 512 is formed at the bottom of each guide groove 511. A convex block 55 is fixedly mounted on one end of each support block 52 near the connecting plate 51. The convex block 55 is engaged in the convex groove 512 and can be removed from the convex groove 512. Then, the rotating rod 53 can be removed from the mounting hole 521. By replacing the permanent magnet wheels 54 with those of different sizes, the adsorption device 5 with the permanent magnet wheels 54 distributed at the four corners of the device provides a strong magnetic force, enabling the device to be stably attached to ferromagnetic workpieces such as pipes, storage tanks, the vertical surfaces of steel structures, and even the top surfaces for operation, thus expanding the detection range. The support block 52 of the adsorption device 5 has a certain angle self-adaptation capability through the cooperation of the convex block 55 and the convex groove 512, which can better fit the surface of workpieces with different curvatures and ensure good contact between the probe and the detection surface. Compared with the large and bulky traditional scanning frame, this device has a compact structure, small size, and excellent portability, making it very suitable for complex industrial environments such as on-site, high-altitude, or space-constrained environments.

[0015] An FSR402 resistive thin-film pressure sensor is attached to the ultrasonic probe body 6. When pressure is applied, its resistance changes. The analog signal is converted into an analog-to-digital signal and then fed into an 89C51 microcontroller. After real-time calculation, the signal is displayed by a digital tube module with an accuracy of up to 0.1N.

[0016] The working principle of this utility model is as follows: In use, first, the ultrasonic probe body 6 is placed into the probe groove at the bottom of the mounting block 39, and the device is placed on the surface of the workpiece to be tested. It is fixed by the adsorption devices 5 at the four corners of the device. The permanent magnet wheel 54 of each adsorption device 5 generates a strong magnetic force, which firmly adsorbs onto the ferromagnetic workpiece. Then, the pressure is adjusted and set by rotating the knob 31 of the pressure application device 3 clockwise. The knob 31 drives the screw 32 to rotate. Due to the limiting effect of the nut 33, the screw 32 moves downward, pushing the slider 34 to move down in the working chamber 102. When the slider 34 moves down, it compresses the spring 36 through the first connecting block 35. The elastic force of the spring 36 is transmitted to the mounting block 39 through the second connecting block 37, and finally acts on the ultrasonic probe, making it stick tightly to the surface of the workpiece. On the other hand, the thin-film pressure sensor installed above the probe will detect the pressure signal in real time and transmit the data to the single-chip microcomputer pressure display device 2. The operator can observe the displayed pressure value while rotating the knob 31. When the pressure display reaches the predetermined value required by the test procedure, stop rotating the knob 31 and rotate the nut 33 on the screw 32 to make the nut 33 and the fixing block 4 fit tightly together to lock the nut 33, thereby locking the position of the screw 32 to prevent it from loosening during the test and ensuring that the pressure applied to the probe is constant. Under the stable preset pressure, the operator can push the entire device to move along the surface of the workpiece to perform ultrasonic scanning. Because the pressure is constant, the coupling state between the probe and the workpiece is consistent, and a stable and reliable test signal can be obtained, effectively avoiding misjudgment or missed judgment caused by pressure fluctuation.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel magnetic ultrasonic probe press with adjustable pressure, characterized in that: The device includes a main body (1) and an ultrasonic probe body (6). Adsorption devices (5) are fixedly installed at each of the four corners of the main body (1). A working chamber (102) is opened inside the main body (1). A pressure application device (3) is installed inside the working chamber (102). An installation groove (103) is opened at the bottom of the main body (1) below the working chamber (102). A fixing block (4) is fixedly installed at the upper end of the main body (1). The pressure application device (3) includes a screw (32). The screw (32) is rotatably installed in the middle of the fixing block (4). A knob (31) is fixedly installed at the top of the screw (32). The bottom of the screw (32) passes through the fixing block (4) and the main body (1) and extends into the working chamber (102), where a slider (34) is rotatably installed. The screw (32) is threadedly connected to the main body (1). The slider (34) is slidably connected to the side wall of the working chamber (102). An installation block (39) is provided in the installation groove (103). A probe groove is opened at the bottom of the installation block (39). The ultrasonic probe body (6) is installed in the probe groove. A second connecting block (37) is fixedly installed at the top of the installation block (39). The top of the second connecting block (37) slides through the device body (1) and extends into the working chamber (102). A first connecting block (35) is fixedly installed at the bottom of the slider (34). A spring (36) is installed between the first connecting block (35) and the second connecting block (37). A nut (33) is threaded on the outer surface of the screw (32) on the upper side of the fixed block (4). An equipment groove (101) is opened on one side of the upper end of the device body (1). A single-chip microcomputer pressure display device (2) is installed in the equipment groove (101).

2. The novel adjustable pressure magnetic ultrasonic probe press according to claim 1, characterized in that: The bottom of the first connecting block (35) and the top of the second connecting block (37) are both provided with annular grooves (38), and the upper and lower ends of the spring (36) are installed in the upper and lower annular grooves (38).

3. The novel adjustable pressure magnetic ultrasonic probe press according to claim 1, characterized in that: The adsorption device (5) includes a connecting plate (51) and two support blocks (52). The two support blocks (52) are provided with mounting holes (521) on their respective sides. A rotating rod (53) is rotatably installed between the two mounting holes (521). A permanent magnet wheel (54) is sleeved on the outer surface of the rotating rod (53). The connecting plate (51) is fixedly installed on one side of the device body (1). Two symmetrical guide grooves (511) are opened on the outer side of the connecting plate (51). A convex groove (512) is opened at the bottom of the guide groove (511). A convex block (55) is fixedly installed on one end of the support block (52) near the connecting plate (51). The convex block (55) is stuck in the convex groove (512).

4. The novel adjustable pressure magnetic ultrasonic probe press according to claim 1, characterized in that: A thin-film pressure sensor is installed on the top of the ultrasonic probe body (6).

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