3D hyperboloid water immersion ultrasonic C scanning device

Abstract

The utility model relates to the technical field of water immersion ultrasonic C scanning, in particular to a 3D double-curved-surface water immersion ultrasonic C scanning device which comprises a water tank, a stepping displacement device is arranged at the top of the water tank and comprises a supporting frame transversely arranged above the water tank, a displacement module is arranged on one side of the supporting frame in a sliding mode, and a telescopic rod is fixed to one side of the displacement module. A synchronous scanning structure is arranged at the bottom end of the telescopic rod and comprises a ring sleeve fixed to the bottom end of the telescopic rod, a sliding rod is slidably arranged on the inner side of the ring sleeve, a connecting table and a clamping table are fixed to one end of the sliding rod, an ejector pin is rotationally connected to the side face of the connecting table in a threaded mode, and an ultrasonic probe is clamped to one end of the clamping table. And a tension spring is fixed between the baffle table and one side of the ring sleeve. The utility model solves the problems that the existing water immersion ultrasonic C scanning detection mode is relatively single, only workpieces with simple structures can be accurately detected, and the existing water immersion ultrasonic C scanning detection mode cannot adapt to the detection of rotary workpieces with relatively large cone angles.

Description

Technical Field

[0001] The utility model relates to the technical field of immersion ultrasonic C-scanning, in particular to a 3D hyperboloid immersion ultrasonic C-scanning device. Background Technique

[0002] Immersion ultrasonic C-scanning is a non-destructive testing technology mainly used to detect internal and external defects of materials. Especially in composite materials and welded structures, this method utilizes the propagation characteristics of ultrasonic waves in a liquid medium. By immersing the object to be detected in water, the propagation effect of signals is improved, and higher detection accuracy can be obtained.

[0003] The existing immersion ultrasonic C-scanning is convenient for detecting plate materials, cylindrical workpieces, or circular workpieces with a small taper. When detecting plate materials, the ultrasonic probe needs to reciprocate through a stepping displacement device for detection; when detecting rotary workpieces, the ultrasonic probe needs to be fixed, and then the workpiece is placed on a turntable for detection.

[0004] However, these two detection methods can only adapt to workpiece structures with relatively simple structures. When detecting workpieces with a large conical angle, such as workpieces with a 3D hyperboloid structure, the method of fixing the probe position for detection will result in inaccurate detection data at a relatively far distance from the probe to the workpiece. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is that the existing immersion ultrasonic C-scanning detection method is relatively single, and can only accurately detect workpieces with simple structures, and cannot adapt to the detection of rotary workpieces with a large conical angle.

[0006] To solve the above problems, the technical solution adopted by the utility model is a 3D hyperboloid immersion ultrasonic C-scanning device, including a water tank. A stepping displacement device is arranged at the top of the water tank. The stepping displacement device includes a support frame horizontally arranged above the water tank. A displacement module is slidably arranged on one side of the support frame. One side of the displacement module is fixed with a telescopic rod. A synchronous scanning structure is arranged at the bottom end of the telescopic rod. The synchronous scanning structure includes a ring sleeve fixed at the bottom end of the telescopic rod. A sliding rod is slidably arranged inside the ring sleeve. One end of the sliding rod is fixed with a connecting platform and a clamping platform. A thimble is rotatably connected to the side surface of the connecting platform by a thread. One end of the clamping platform is clamped with an ultrasonic probe. A blocking platform is fixed on the outer side of the sliding rod. A tension spring is fixed between the blocking platform and one side of the ring sleeve.

[0007] As a further scheme of the utility model: A rotating table is rotatably arranged at the inner bottom of the water tank. A 3D hyperboloid workpiece is placed above the rotating table, which can drive the 3D hyperboloid workpiece to rotate.

[0008] As a further solution of the present utility model: A fixed rod is fixed at the inner bottom of the water tank beside the rotating table. A sliding rod is sleeved outside the fixed rod. One end of the sliding rod is rotationally connected with a fastening bolt in a threaded manner. The lower side of the other end of the sliding rod is fixed with a contact head, and the contact head abuts against the upper side of the 3D hyperbolic workpiece, which can limit the position of the 3D hyperbolic workpiece. By adjusting the distance of the sliding rod, it can be applicable to revolving body workpieces of different heights.

[0009] As a further solution of the present utility model: The water tank is filled with water, and the 3D hyperbolic workpiece and the synchronous scanning structure are both located in the water.

[0010] As a further solution of the present utility model: One end of the thimble abuts against the outer side of the 3D hyperbolic workpiece, so that when the 3D hyperbolic workpiece rotates, the ultrasonic probe can always maintain a fixed distance from the surface of the 3D hyperbolic workpiece.

[0011] As a further solution of the present utility model: A transparent window is provided on one side of the water tank for facilitating the observation of the detection situation. Support legs are fixed at the four corners of the bottom of the water tank, and a motor with an output end fixed to the lower side of the rotating table is fixed at the bottom of the water tank.

[0012] As a further solution of the present utility model: The stepping displacement device, the ultrasonic probe, and the motor are all electrically connected to an external power supply.

[0013] The advantages of the present utility model compared with the prior art are as follows: This patent adds a synchronous scanning structure. Through the sliding rod and the thimble, the ultrasonic probe can always maintain a fixed position with respect to the surface of the workpiece, so as to facilitate the comprehensive detection of the workpiece, and the accuracy is relatively high. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 It is a three-dimensional view of the overall structure in the 3D hyperbolic water immersion ultrasonic C-scanning device of the present utility model.

[0016] Figure 2 It is a partial structural sectional view in the 3D hyperbolic water immersion ultrasonic C-scanning device of the present utility model.

[0017] Figure 3 It is a three-dimensional view of the synchronous scanning structure in the 3D hyperbolic water immersion ultrasonic C-scanning device of the present utility model.

[0018] Figure 4 It is an enlarged view of the structure at part A in the 3D hyperbolic water immersion ultrasonic C-scanning device of the present utility model.

[0019] Figure 5 This is an enlarged view of the B part structure in the 3D hyperbolic immersion ultrasonic C-scanning device of the present utility model.

[0020] In the attached drawings:

[0021] 1. Water tank; 2. Stepping displacement device; 3. Telescopic rod; 4. Synchronous scanning structure; 5. Rotary table; 6. 3D hyperbolic workpiece; 7. Fixed rod; 8. Sliding rod; 9. Tightening bolt; 10. Contact; 2.1. Support frame; 2.2. Displacement module; 4.1. Ring sleeve; 4.2. Slide bar; 4.3. Connection table; 4.4. Clamping table; 4.5. Thimble; 4.6. Ultrasonic probe; 4.7. Stop table; 4.8. Tension spring. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides a technical solution: to solve the existing problems proposed in the background technology.

[0024] Combined with the attached Figure 1 , 2 , 5, it can be known that the device includes a water tank 1. A stepping displacement device 2 is provided on the top of the water tank 1, which is a common multi-axial stepping displacement mechanism in the prior art. The stepping displacement device 2 includes a support frame 2.1 horizontally arranged above the water tank 1. A displacement module 2.2 is slidably arranged on one side of the support frame 2.1. One side of the displacement module 2.2 is fixed with a telescopic rod 3 for adjusting the position of the synchronous scanning structure 4. A rotary table 5 is rotatably arranged at the bottom inside the water tank 1. A 3D hyperbolic workpiece 6 is placed above the rotary table 5, which can drive the 3D hyperbolic workpiece 6 to rotate; a fixed rod 7 is fixed beside the rotary table 5 at the bottom inside the water tank 1. A sliding rod 8 is sleeved outside the fixed rod 7. One end of the sliding rod 8 is rotatably connected with a tightening bolt 9 in a threaded manner. The lower side of the other end of the sliding rod 8 is fixed with a contact 10, and the contact 10 abuts against the upper side of the 3D hyperbolic workpiece 6, which can limit the position of the 3D hyperbolic workpiece 6. By adjusting the distance of the sliding rod 8, it can be applicable to rotary workpieces of different heights; water is filled in the water tank 1, and the 3D hyperbolic workpiece 6 and the synchronous scanning structure 4 are both located in the water; a transparent window is opened on one side of the water tank 1 for facilitating the observation of the detection situation. Support legs are fixed at the four corners of the bottom of the water tank 1. A motor with an output end fixed to the lower side of the rotary table 5 is fixed at the bottom of the water tank 1; the stepping displacement device 2, the ultrasonic probe 4.6, and the motor are all electrically connected to an external power source

[0025] Combined with the attached Figures 2 - 4 , it can be known that a synchronous scanning structure 4 is provided at the bottom end of the telescopic rod 3. The synchronous scanning structure 4 includes a ring sleeve 4.1 fixed to the bottom end of the telescopic rod 3. A sliding rod 4.2 is slidably provided inside the ring sleeve 4.1. One end of the sliding rod 4.2 is fixed with a connecting platform 4.3 and a clamping platform 4.4. A thimble 4.5 is rotatably connected to the side of the connecting platform 4.3 by threads. One end of the clamping platform 4.4 is clamped with an ultrasonic probe 4.6. A retaining platform 4.7 is fixed to the outside of the sliding rod 4.2. A tension spring 4.8 is fixed between the retaining platform 4.7 and one side of the ring sleeve 4.1. One end of the thimble 4.5 abuts against the outside of the 3D hyperbolic workpiece 6, so that when the 3D hyperbolic workpiece 6 rotates, the ultrasonic probe 4.6 always maintains a fixed distance from the surface of the 3D hyperbolic workpiece 6.

[0026] The working principle of this application is as follows: When performing non-destructive testing on a 3D hyperbolic workpiece, first place the 3D hyperbolic workpiece 6 above the rotating table 5, then move the sliding rod 8 so that the contact head 10 is located at the central position on the upper side of the 3D hyperbolic workpiece 6, and then rotate the fastening bolt 9 to fix the position of the sliding rod 8;

[0027] Then fix the ultrasonic probe 4.6 to one end of the clamping platform 4.4, then start the telescopic rod 3 so that the synchronous scanning structure 4 is located above the 3D hyperbolic workpiece 6, then start the stepping displacement device 2 to displace the synchronous scanning structure 4 to the side of the 3D hyperbolic workpiece 6, then make one end of the thimble 4.5 contact the outside of the 3D hyperbolic workpiece 6, then rotate the thimble 4.5 to adjust the distance between the ultrasonic probe 4.6 and the 3D hyperbolic workpiece 6, and then start the stepping displacement device 2 to move the displacement module 2.2 in the left direction. At this time, the tension spring 4.8 will be subjected to a tensile force, so that the thimble 4.5 can always abut against the 3D hyperbolic workpiece 6, so as to ensure that the distance between the ultrasonic probe 4.6 and the 3D hyperbolic workpiece 6 remains unchanged during testing.

[0028] The above describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the creative purpose of the present invention, they design similar structural manners and embodiments to this technical solution without creative efforts, and all should belong to the protection scope of the present invention.

Claims

1. A 3D hyperbolic surface water immersion ultrasonic C-scanning device, comprising a water tank (1), a stepping displacement device (2) being provided on the top of the water tank (1), characterized in that: The step displacement device (2) comprises a support frame (2.1) disposed horizontally above the water tank (1); a displacement module (2.2) is slidably provided on one side of the support frame (2.1); a telescopic rod (3) is fixed on one side of the displacement module (2.2); a synchronous scanning structure (4) is provided at the bottom end of the telescopic rod (3); the synchronous scanning structure (4) comprises a ring sleeve (4.1) fixed at the bottom end of the telescopic rod (3); a sliding rod (4.2) is slidably provided inside the ring sleeve (4.1); a connecting platform (4.3) and a clamping platform (4.4) are fixed at one end of the sliding rod (4.2); a thimble (4.5) is rotatably connected to the side surface of the connecting platform (4.3); an ultrasonic probe (4.6) is clamped at one end of the clamping platform (4.4); a stopper (4.7) is fixed on the outside of the sliding rod (4.2); and a tension spring (4.8) is fixed between the stopper (4.7) and one side of the ring sleeve (4.1).

2. The 3D hyperbolic surface water immersion ultrasonic C-scanning device according to claim 1, characterized in that: A rotating table (5) is rotatably provided at the bottom of the water tank (1), and a 3D hyperbolic workpiece (6) is placed above the rotating table (5).

3. The 3D hyperbolic surface water immersion ultrasonic C-scanning device according to claim 2, characterized in that: A fixing rod (7) is fixed to the bottom of the water tank (1) beside the rotating platform (5), a sliding rod (8) is sleeved on the outside of the fixing rod (7), one end of the sliding rod (8) is threadedly rotatably connected to a fastening bolt (9), and a contact (10) is fixed to the lower side of the other end of the sliding rod (8), and the contact (10) is in contact with the upper side of the 3D hyperbolic workpiece (6).

4. The 3D hyperbolic surface water immersion ultrasonic C-scanning device according to claim 2, characterized in that: The water tank (1) is filled with water, and the 3D hyperbolic workpiece (6) and the synchronous scanning structure (4) are both located in the water.

5. The 3D hyperbolic surface water immersion ultrasonic C-scanning device according to claim 2, characterized in that: One end of the ejector pin (4.5) abuts against the outer side of the 3D hyperbolic workpiece (6).

6. The 3D hyperbolic surface water immersion ultrasonic C-scanning device according to claim 1, characterized in that: A transparent window is provided on one side of the water tank (1), support legs are fixed at the four corners of the bottom of the water tank (1), and a motor with an output end fixed to the lower side of the rotating platform (5) is fixed at the bottom of the water tank (1).

7. The 3D hyperbolic surface water immersion ultrasonic C-scanning device according to claim 6, characterized in that: The stepping displacement device (2), the ultrasonic probe (4.6) and the motor are all electrically connected to an external power source.

Images