Ultrasonic probe adjusting device suitable for curved surface detection

Abstract

The invention relates to the technical field of ultrasonic detection, and discloses an ultrasonic probe adjusting device suitable for curved surface detection.The ultrasonic probe adjusting device comprises a detection box body and further comprises a detection unit, a movement unit and a holding unit, a pin shaft base is fixedly connected to the top of the detection box body, and a right side protection plate and a left side protection plate are arranged on the detection box body; and the pin shaft seat is rotationally connected with a section of a holding rod with an adjustable angle. The central normal of a micro curved surface element formed by contact points of four rubber wheels on the motion unit and a curved surface workpiece is overlapped with the axis of the probe body, so that self-adaptive detection can be carried out on curved surfaces with different curvatures; the ultrasonic central beam emitted by the probe body is always overlapped with the normal direction of the micro curved surface element where the contact point is located, so that the serious beam diffusion is prevented, the positioning accuracy is ensured, the stress of the probe body on the curved surface is symmetrical, the coupling effect of a coupling agent is ensured, and the detection precision and reliability are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic detection, and particularly relates to an ultrasonic probe adjusting device suitable for curved surface detection. Background Art

[0002] In recent years, the ultrasonic detection technology has been widely used in many fields such as industrial manufacturing and material detection due to its advantages of being able to penetrate the interior of materials and quickly detect material defects, and has become an important non-destructive detection technology indispensable for industrial quality control. However, with the increasing application of various new composite materials, the component structures in workpiece production have become increasingly complex. Workpieces with curved surface structures are becoming increasingly common, which poses higher-level requirements for ultrasonic detection technology.

[0003] In the prior art, when the device is in use, due to structural limitations and the uncertainty of the angle of manually placing the ultrasonic probe, the central beam of the ultrasonic wave emitted by the probe body cannot always coincide with the normal direction of the tiny curved surface element where the contact point is located, resulting in serious beam divergence and inaccurate defect positioning. At the same time, it will also cause the ultrasonic probe to be asymmetrically stressed on the curved surface, thereby causing poor coupling of the coupling agent and affecting the accuracy and reliability of detection. Therefore, it is necessary to improve an ultrasonic probe adjusting device suitable for curved surface detection to solve the above problems. Summary of the Invention

[0004] In order to overcome the problems of serious beam divergence and inaccurate defect positioning caused by the structural limitations of the ultrasonic probe and the uncertainty of the angle of manually placing the probe body, which affect the accuracy and reliability of detection.

[0005] The technical solution of the present invention is: an ultrasonic probe adjusting device suitable for curved surface detection, including a detection box body, and further including a detection unit, a motion unit and a holding unit. A pin shaft seat is fixedly connected to the top of the detection box body. A right side guard plate and a left side guard plate are arranged on the detection box body. One end of a holding rod with adjustable angle is rotatably connected to the pin shaft seat. A probe body for ultrasonic detection is arranged inside the detection unit, and the probe body is arranged inside the detection box body. The detection unit includes a convex platform, the convex platform is fixedly connected to the inner side of the detection box body, a motion slider is slidably connected to the outside of the convex platform, an upper screw is fixedly connected to the motion slider, a stop member is arranged inside the detection box body, a stop screw is threadedly connected to the inside of the stop member, and the stop screw is threadedly connected to the inside of the detection box body. The motion unit includes an axle, the axle is arranged inside the detection box body, left side guard plates and right side guard plates are arranged on the axle, guard plate grooves are opened on the inner sides of the left side guard plates and the right side guard plates, a lower screw is fixedly connected to the inside of the guard plate grooves, a rubber wheel is fixedly connected to the axle, and a tension spring is arranged between the lower screw and the upper screw.

[0006] Preferably, upper screws and lower screws are provided both inside the guard plate groove and on the moving slider, and the upper screws and the lower screws are aligned vertically.

[0007] Preferably, when the curved surface workpiece is not contacted, the tension spring is in a stretched state. At this time, the moving slider is tightly connected to the stopper, and the bottom plane of the probe body exceeds the bottom plane of the four rubber wheels.

[0008] Preferably, a plurality of upper screws and lower screws are provided, and the plurality of upper screws and lower screws are evenly arranged inside the guard plate groove and on the moving slider.

[0009] Preferably, the diameter of the rubber wheel fixedly connected to the axle is the same as the diameter of the probe body provided inside the moving slider.

[0010] Preferably, a through hole is formed inside the moving slider, a chute is formed inside the moving slider, and a short slider screw and a long slider screw are threadedly connected inside the moving slider.

[0011] Preferably, the holding unit includes a second-stage holding rod. The second-stage holding rod is arranged on the first-stage holding rod. A fixed pin shaft is fixedly connected inside the second-stage holding rod. The fixed pin shaft is rotatably connected inside the pin shaft seat. A roller is arranged inside the first-stage holding rod.

[0012] Advantages of the present invention: Compared with the probe body with structural limitations and the uncertainty of the angle of manually placing the probe body, the central normal of the micro-curved surface element formed by the contact points of the four rubber wheels on the moving unit with the curved surface workpiece coincides with the axis of the probe body, so that the curved surfaces with different curvatures can be adaptively detected, and the central beam of the ultrasonic wave emitted by the probe body always coincides with the normal direction of the micro-curved surface element where the contact point is located, preventing serious beam divergence, ensuring the accuracy of positioning, making the force on the probe body symmetric on the curved surface, ensuring the coupling effect of the coupling agent, ensuring the accuracy and reliability of detection, and effectively preventing serious beam divergence, inaccurate defect positioning, and affecting the accuracy and reliability of detection caused by the structural limitations of the probe body and the uncertainty of the angle of manually placing the probe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an embodiment of the ultrasonic probe adjusting device of the present invention; Figure 2 is Figure 1 a schematic structural diagram of the detection unit and its related connecting components in Figure 3 is Figure 1 a schematic structural diagram of the moving unit and its related connecting components in Figure 4 is Figure 1Structural schematic diagram of the middle holding unit and its related connecting components; Figure 5 is Figure 1 Structural schematic diagram of the moving slider in the middle; Figure 6 is Figure 1 Structural schematic diagram of the stop member.

[0014] Explanation of reference numerals: 11, pin shaft seat; 12, detection box body; 13, tension spring; 14, convex platform; 15, moving slider; 16, stop member; 17, probe body; 21, left side guard plate; 22, right side guard plate; 23, rubber wheel; 24, guard plate groove; 25, lower screw; 26, axle; 31, roller; 32, first section of the holding rod; 33, second section of the holding rod; 34, fixed pin shaft; 151, sliding groove; 152, short slider screw; 153, through hole; 154, upper screw; 155, long slider screw; 161, stop screw. Detailed implementation manners

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and the like shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] Next, the present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0018] Please refer to Figures 1-6, the present invention provides an embodiment: an ultrasonic probe adjusting device suitable for curved surface detection, including a detection box body 12, and further including a detection unit, a motion unit and a holding unit. A pin shaft seat 11 is fixedly connected to the top of the detection box body 12. A right side guard plate 22 and a left side guard plate 21 are arranged on the detection box body 12. A holding rod section 32 with adjustable angle is rotatably connected to the pin shaft seat 11. An ultrasonic detection probe body 17 is arranged inside the detection unit. The probe body 17 is arranged inside the detection box body 12. The detection unit includes a boss 14. The boss 14 is fixedly connected to the inner side of the detection box body 12. A motion slider 15 is slidably connected to the outside of the boss 14. An upper screw 154 is fixedly connected to the motion slider 15. A stopper 16 is arranged inside the detection box body 12. A stopper screw 161 is threadedly connected to the inside of the stopper 16. The stopper screw 161 is threadedly connected to the inside of the detection box body 12. The motion unit includes an axle 26. The axle 26 is arranged inside the detection box body 12. The left side guard plate 21 and the right side guard plate 22 are arranged on the axle 26. A guard plate groove 24 is formed on the inner sides of the left side guard plate 21 and the right side guard plate 22. A lower screw 25 is fixedly connected to the inside of the guard plate groove 24. A rubber wheel 23 is fixedly connected to the axle 26. A tension spring 13 is arranged between the lower screw 25 and the upper screw 154. The motion slider 15 and the stopper 16 are already in a fitting state. At this time, the tension spring 13 is in a stretched state. The end plane of the probe body 17 extends beyond the bottom plane of the rubber wheel 23. When the device is placed on a curved surface workpiece and a certain pressure is applied through the holding rod section 32, the probe body 17 first contacts the curved surface workpiece. The probe body 17 receives the force exerted by the curved surface workpiece, causing the probe body 17 and the motion slider 15 to move upward along the vertical direction of the chute 151. At this time, the stretching amount of the tension spring 13 increases and gives a downward pressure to the motion slider 15, making the probe body 17 closely fit the curved surface workpiece.

[0019] Please refer to Figure 2 - Figure 3, in this embodiment, upper screws 154 and lower screws 25 are provided both inside the guard plate groove 24 and on the moving slider 15. The upper screws 154 and the lower screws 25 are aligned vertically. By aligning them vertically, a stable guiding effect is achieved during operation. When not in contact with the curved workpiece, the tension spring 13 is in a stretched state. At this time, the moving slider 15 is tightly connected to the stopper 16, and the bottom plane of the probe body 17 extends beyond the bottom plane of the four rubber wheels 23. The tension spring 13 is used to provide a pulling force on the moving slider 15, so that the moving slider 15 is always subjected to a vertically downward pressure, enabling the probe body 17 to fully conform to the surface of the curved workpiece. Multiple upper screws 154 and lower screws 25 are provided, and the multiple upper screws 154 and lower screws 25 are evenly arranged inside the guard plate groove 24 and on the moving slider 15. The upper screws 154 and the lower screws 25 are connected by multiple tension springs 13, which can make the probe body 17 receive a uniformly downward pressure, enabling the probe body 17 to fully conform to the curved workpiece. The diameter of the rubber wheel 23 fixedly connected to the axle 26 is the same as the diameter of the probe body 17 provided inside the moving slider 15. The moving slider 15 plays a guiding role to enable the probe body 17 to move vertically in the detection box 12.

[0020] Please refer to Figure 4 , Figure 5 , in this embodiment, a through hole 153 is provided inside the moving slider 15, and a sliding groove 151 is provided inside the moving slider 15. The moving slider 15 is threadedly connected with a short slider screw 152 and a long slider screw 155. By providing the short slider screw 152 and the long slider screw 155, a stable fixing effect can be achieved on the probe body 17. The holding unit includes a second-stage holding rod 33, and the second-stage holding rod 33 is arranged on the first-stage holding rod 32. A fixed pin shaft 34 is fixedly connected inside the second-stage holding rod 33, and the fixed pin shaft 34 is rotatably connected inside the pin shaft seat 11. A roller 31 is provided inside the first-stage holding rod 32. The first-stage holding rod 32 is used to push the device forward and provide a downward pressure on the detection box 12, so that the four rubber wheels 23 are fully attached to the curved workpiece, realizing the movement and stability of the device.

[0021] When working, when the device does not contact the curved workpiece, the moving slider 15 and the stopper 16 are already in a fitting state. At this time, the tension spring 13 is in a stretched state, and the end plane of the probe body 17 extends beyond the bottom plane of the rubber wheel 23. When the device is placed on the curved workpiece and a certain pressure is applied through one end 32 of the holding rod, the probe body 17 first contacts the curved workpiece. The probe body 17 receives the force exerted by the curved workpiece, causing the probe body 17 and the moving slider 15 to move upward along the vertical direction of the chute 151. At this time, the stretching amount of the tension spring 13 increases and gives a downward pressure to the moving slider 15, making the probe body 17 closely fit the curved workpiece. Due to the external force applied by one end 32 of the holding rod, the four rubber wheels 23 are urged to closely fit the curved workpiece. This fitting action adjusts the spatial pose of the motion unit. Since the spatial pose of the motion unit changes, the pose of the detection unit in space also changes accordingly. At this time, the central normal of the micro-curved surface element formed by the contact points of the four rubber wheels 23 of the motion unit and the curved workpiece coincides with the axis of the probe body 17, so as to be able to perform adaptive detection on curved surfaces with different curvatures.

[0022] Through the above steps, the central normal of the micro-curved surface element formed by the contact of the four rubber wheels 23 on the motion unit with the curved workpiece coincides with the axis of the probe body 17, so as to be able to perform adaptive detection on curved surfaces with different curvatures, so as to solve the problems of serious beam divergence, inaccurate defect positioning, and affecting the accuracy and reliability of detection caused by the structural limitation of the probe body 17 and the uncertainty of the angle of manually placing the probe body 17.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. An ultrasonic probe adjustment device suitable for curved surface detection, comprising a detection box (12), characterized in that: The detection unit also includes a detection unit, a motion unit and a holding unit. The top of the detection box (12) is fixedly connected to a pin shaft seat (11). The detection box (12) is provided with a right side guard plate (22) and a left side guard plate (21). The pin shaft seat (11) is rotatably connected to a holding rod section (32) with an adjustable angle. An ultrasonic detection probe body (17) is provided inside the detection unit. The probe body (17) is provided inside the detection box (12). The detection unit includes a boss (14). The boss (14) is fixedly connected to the inner side of the detection box (12). The outside of the boss (14) is slidably connected to a motion slider (15). The motion slider (15) is fixedly connected to an upper screw (154). The detection box A stopper (16) is provided inside the detection box (12), and a stopper screw (161) is threadedly connected inside the stopper (16), and the stopper screw (161) is threadedly connected inside the detection box (12). The motion unit includes an axle (26), and the axle (26) is provided inside the detection box (12). A left guard plate (21) and a right guard plate (22) are provided on the axle (26), and a guard plate groove (24) is provided inside the left guard plate (21) and the right guard plate (22), and a lower screw (25) is fixedly connected inside the guard plate groove (24), and a rubber wheel (23) is fixedly connected to the axle (26), and a tension spring (13) is provided between the lower screw (25) and the upper screw (154).

2. The ultrasonic probe adjustment device for curved surface detection according to claim 1, characterized in that: An upper screw (154) and a lower screw (25) are arranged inside the guard plate groove (24) and on the moving slide block (15), and the upper screw (154) and the lower screw (25) are aligned in the vertical direction.

3. The ultrasonic probe adjustment device for curved surface detection according to claim 1, characterized in that: When not in contact with the curved workpiece, the tension spring (13) is in a stretched state, at which time the moving slider (15) is tightly connected to the stopper (16), and the bottom plane of the probe body (17) exceeds the bottom planes of the four rubber wheels (23).

4. The ultrasonic probe adjustment device suitable for curved surface detection according to claim 1, characterized in that: A plurality of upper screws (154) and lower screws (25) are provided, and the plurality of upper screws (154) and lower screws (25) are evenly arranged inside the guard plate slot (24) and on the moving slide block (15).

5. The ultrasonic probe adjustment device suitable for curved surface detection according to claim 1, characterized in that: The diameter of the rubber wheel (23) fixedly connected to the axle (26) is consistent with the diameter of the probe body (17) arranged inside the moving slider (15).

6. The ultrasonic probe adjustment device for curved surface detection according to claim 1, characterized in that: A through hole (153) is provided inside the moving slider (15), a sliding groove (151) is provided inside the moving slider (15), and a short slider screw (152) and a long slider screw (155) are connected to the inner thread of the moving slider (15).

7. The ultrasonic probe adjustment device for curved surface detection according to claim 1, characterized in that: The holding unit comprises a holding rod section (33), the holding rod section (33) being arranged on a holding rod section (32), a fixed pin shaft (34) being fixedly connected inside the holding rod section (33), the fixed pin shaft (34) being rotatably connected inside a pin shaft seat (11), and a roller (31) being arranged inside the holding rod section (32).

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