Universal frame for ultrasonic flaw detection head

Abstract

The utility model relates to the technical field of ultrasonic flaw detection head accessories, and discloses a gimbal for an ultrasonic flaw detection head, which comprises a first connecting rod, a second connecting rod, a third connecting rod and a handle rod, and threaded columns are fixedly mounted at the right ends of the first connecting rod, the second connecting rod and the third connecting rod. The nut is slightly loosened, so that the ultrasonic probe fixing seat can freely rotate in the U-shaped frame; the threaded plug is loosened, so that the extrusion force of the spring is reduced, and the extrusion force of the damping head on the clamping groove is also reduced; the inclination angle of the ultrasonic probe fixing seat also changes when the ultrasonic probe fixing seat moves on the surface of the steel plate along with the reduction of the damping force; after the angle is changed, the damping heads can be clamped into the corresponding clamping grooves, then the ultrasonic probe fixing base is simply inclined by an angle and then locked, and then it is guaranteed that the inclination angle of the ultrasonic probe fixing base is adjusted along with fluctuating changes of the steel plate.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic flaw detector head accessories, in particular to a universal joint for an ultrasonic flaw detector head. Background Art

[0002] Ultrasonic flaw detection method is a method of using the characteristics that ultrasonic energy can penetrate deep into metal materials and reflect at the section edge when entering from one section to another to check part defects. The ultrasonic beam generated by the ultrasonic probe penetrates from the surface of the part through the probe into the metal interior. When encountering defects and the bottom surface of the part, reflected waves are generated respectively, forming pulse waveforms on the fluorescence screen. The position and size of the defects are judged according to these pulse waveforms.

[0003] After the steel plate rolling is completed, it is often necessary to measure its quality. At present, it is common to manually hold the probe and move it on the steel plate to detect the quality of the steel plate. However, during the measurement, when the probe encounters unevenness on the steel plate, the probe cannot tilt with the unevenness of the steel plate. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a universal joint for an ultrasonic flaw detector head, which has the advantage of adjusting the tilt angle of the probe and solves the above problems.

[0006] (2) Technical Solutions

[0007] To achieve the above purpose of adjusting the tilt angle of the probe, the utility model provides the following technical solutions: A universal joint for an ultrasonic flaw detector head includes a first connecting rod, a second connecting rod, a third connecting rod and a handle rod. Threaded columns are fixedly installed at the right ends of the first connecting rod, the second connecting rod and the third connecting rod. Threaded holes corresponding to the threaded columns are opened on the right sides of the second connecting rod, the third connecting rod and the handle rod. A U-shaped frame is fixedly installed on the left side of the first connecting rod. An ultrasonic probe fixing seat is movably installed inside the U-shaped frame. A wire is fixedly connected to the top of the ultrasonic probe fixing seat. A wire clip corresponding to the wire is fixedly installed on the top of the first connecting rod. Connecting seats are fixedly installed on both sides of the ultrasonic probe fixing seat. A threaded rod is fixedly installed on the surface of the connecting seat. A nut is threadedly connected to the outer side of the threaded rod. A damping component is fixedly installed on the inner wall of the U-shaped frame.

[0008] The first connecting rod, the second connecting rod, the third connecting rod and the handle rod are connected end to end with each other through the threaded column and the threaded hole.

[0009] The threaded rod penetrates through a reserved hole in the U-shaped frame, and the ultrasonic probe fixing seat is movably connected to the U-shaped frame through the connecting seat, the threaded rod and the nut.

[0010] Preferably, the damping assembly includes a housing, a threaded cylinder is embedded at the top of the housing, a limiting ring is embedded at the bottom of the housing, a damping head is inserted through the inside of the limiting ring, a limiting plate is fixedly installed at the top of the damping head, a spring is arranged at the top of the limiting plate, a threaded plug is in threaded connection with the inside of the threaded cylinder, and a cross slot is opened at the top of the threaded plug.

[0011] Preferably, the housing is fixedly installed on the inner wall of the U-shaped frame and is located above the threaded rod.

[0012] Preferably, a card slot corresponding to the damping head is opened on the outer side of the connecting seat, and one end of the damping head inserted into the card slot is hemispherical.

[0013] Preferably, both the spring and the limiting plate are located inside the threaded cylinder.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a universal joint for an ultrasonic flaw detector head, and has the following beneficial effects:

[0016] For the universal joint for the ultrasonic flaw detector head, by slightly loosening the nut, the ultrasonic probe fixing seat can be ensured to rotate freely in the U-shaped frame; then by loosening the threaded plug, the extrusion force of the spring becomes smaller, and the extrusion of the damping head on the card slot also becomes smaller; as the damping force becomes smaller, when the ultrasonic probe fixing seat moves on the steel plate surface, the inclination angle of the ultrasonic probe fixing seat will also change; after the angle changes, the damping head will also be stuck into the corresponding card slot, and then simply lock the ultrasonic probe fixing seat after tilting the angle, so as to ensure that the inclination angle of the ultrasonic probe fixing seat is adjusted with the undulation of the steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 is an exploded structural schematic diagram of the utility model;

[0019] Figure 3 is a structural schematic diagram of the U-shaped frame and the ultrasonic probe fixing seat of the utility model;

[0020] Figure 4 is a structural schematic diagram of the connecting seat, the threaded rod and the nut of the utility model;

[0021] Figure 5 is an exploded structural schematic diagram of the damping assembly of the utility model.

[0022] In the figure: 1. first connecting rod; 2. second connecting rod; 3. third connecting rod; 4. handle rod; 5. threaded column; 6. U-shaped frame; 7. ultrasonic probe fixing base; 8. wire; 9. wire clamp; 10. connecting base; 11. threaded rod; 12. nut; 13. damping assembly; 131. housing; 132. threaded barrel; 133. limiting ring; 134. damping head; 135. limiting plate; 136. spring; 137. threaded plug; 138. slot. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] See also Figure 1-2 A universal mount for an ultrasonic flaw detection head includes a first connecting rod 1, a second connecting rod 2, a third connecting rod 3 and a handle rod 4. The right ends of the first connecting rod 1, the second connecting rod 2 and the third connecting rod 3 are fixedly installed with a threaded column 5, and the right sides of the second connecting rod 2, the third connecting rod 3 and the handle rod 4 are each provided with a threaded hole corresponding to the threaded column 5, including the first connecting rod 1, the second connecting rod 2, the third connecting rod 3 and the handle rod 4 being connected end to end through the threaded column 5 and the threaded hole.

[0025] See also Figure 3-4 A U-shaped frame 6 is fixedly installed on the left side of the first connecting rod 1, and an ultrasonic probe fixing seat 7 is movably installed inside the U-shaped frame 6. A wire 8 is fixedly connected to the top of the ultrasonic probe fixing seat 7. A wire clamp 9 corresponding to the wire 8 is fixedly installed on the top of the first connecting rod 1 to ensure that the wire 8 will not interfere with the flaw detection during flaw detection.

[0026] See also Figure 3-4 , connecting seats 10 are fixedly installed on both sides of the ultrasonic probe fixing seat 7, and a threaded rod 11 is fixedly installed on the surface of the connecting seat 10. The threaded rod 11 is inserted into the reserved hole of the U-shaped frame 6, and the outer side of the threaded rod 11 is threadedly connected with a nut 12. The ultrasonic probe fixing seat 7 is movably connected to the U-shaped frame 6 through the connecting seat 10, the threaded rod 11 and the nut 12. By loosening the nut 12, the ultrasonic probe fixing seat 7 can be rotated inside the U-shaped frame 6.

[0027] See also Figure 4-5, a damping component 13 is fixedly installed on the inner wall of the U-shaped frame 6. The damping component 13 includes a housing 131 which is fixedly installed on the inner wall of the U-shaped frame 6 and is located above the threaded rod 11. A threaded cylinder 132 is embedded in the top of the housing 131, and a limiting ring 133 is embedded in the bottom of the housing 131. A damping head 134 is inserted through the limiting ring 133. A limiting plate 135 is fixedly installed at the top of the damping head 134, and a spring 136 is arranged at the top of the limiting plate 135. Both the spring 136 and the limiting plate 135 are located inside the threaded cylinder 132.

[0028] Please refer to Figure 4-5 , a threaded plug 137 is in threaded connection with the inside of the threaded cylinder 132. A cross groove is opened at the top of the threaded plug 137, and a clamping groove 138 corresponding to the damping head 134 is opened on the outer side of the connecting seat 10. One end of the damping head 134 inserted into the clamping groove 138 is hemispherical.

[0029] Working principle: When in use, the first connecting rod 1, the second connecting rod 2, the third connecting rod 3 and the handle rod 4 are pre-assembled into a whole through the threaded column 5 and the threaded hole, and then the nut 12 is slightly loosened, so as to ensure that the ultrasonic probe fixing seat 7 can rotate freely in the U-shaped frame 6;

[0030] Then, by loosening the threaded plug 137, the extrusion force of the spring 136 becomes smaller, and the extrusion of the damping head 134 on the clamping groove 138 also becomes smaller; as the damping force becomes smaller, when the ultrasonic probe fixing seat 7 moves on the steel plate surface, the inclination angle of the ultrasonic probe fixing seat 7 will also change;

[0031] On the contrary, when the nut 12 is tightened, the nut 12 presses on the side of the U-shaped frame 6, and the rotating ultrasonic probe fixing seat 7 can be locked;

[0032] By tightening the threaded plug 137, the threaded plug 137 will move downward into the threaded cylinder 132, and then the spring 136 is compressed. The damping of the damping head 134 inserted into the clamping groove 138 becomes larger, and then a large force needs to be applied to rotate the ultrasonic probe fixing seat 7.

[0033] After the angle changes, the damping head 134 will also be stuck into the corresponding clamping groove 138, and then simply lock the ultrasonic probe fixing seat 7 after tilting the angle, so as to ensure that the ultrasonic probe fixing seat 7 adjusts the inclination angle with the undulation of the steel plate.

[0034] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gimbal for an ultrasonic flaw detector head, comprising a first connecting rod (1), a second connecting rod (2), a third connecting rod (3) and a handle rod (4), characterized in that: The right ends of the first connecting rod (1), the second connecting rod (2) and the third connecting rod (3) are all fixedly installed with threaded columns (5). Threaded holes corresponding to the threaded columns (5) are provided on the right sides of the second connecting rod (2), the third connecting rod (3) and the handle rod (4). The left side of the first connecting rod (1) is fixedly installed with a U-shaped frame (6). An ultrasonic probe fixing seat (7) is movably installed inside the U-shaped frame (6). A wire (8) is fixedly connected to the top of the ultrasonic probe fixing seat (7). A wire clip (9) corresponding to the wire (8) is fixedly installed on the top of the first connecting rod (1). Connecting seats (10) are fixedly installed on both sides of the ultrasonic probe fixing seat (7). A threaded rod (11) is fixedly installed on the surface of the connecting seat (10). A nut (12) is threadedly connected to the outside of the threaded rod (11). A damping assembly (13) is fixedly installed on the inner wall of the U-shaped frame (6).

2. The gimbal for an ultrasonic flaw detector head according to claim 1, characterized in that: The first connecting rod (1), the second connecting rod (2), the third connecting rod (3) and the handle rod (4) are connected end to end with each other through the threaded column (5) and the threaded hole.

3. The gimbal for an ultrasonic flaw detector head according to claim 1, characterized in that: The threaded rod (11) is inserted into a reserved hole of the U-shaped frame (6). The ultrasonic probe fixing seat (7) is movably connected to the U-shaped frame (6) through the connecting seat (10), the threaded rod (11) and the nut (12).

4. The gimbal for an ultrasonic flaw detector head according to claim 1, characterized in that: The damping assembly (13) includes a housing (131). A threaded cylinder (132) is embedded at the top of the housing (131). A limit ring (133) is embedded at the bottom of the housing (131). A damping head (134) is inserted into the limit ring (133). A limit plate (135) is fixedly installed at the top of the damping head (134). A spring (136) is arranged on the top of the limit plate (135). A threaded plug (137) is threadedly connected to the inside of the threaded cylinder (132). A cross groove is provided at the top of the threaded plug (137).

5. The gimbal for an ultrasonic flaw detector head according to claim 4, characterized in that: The housing (131) is fixedly installed on the inner wall of the U-shaped frame (6) and is located above the threaded rod (11).

6. The gimbal for an ultrasonic flaw detector head according to claim 4, characterized in that: A card slot (138) corresponding to the damping head (134) is provided on the outside of the connecting seat (10). One end of the damping head (134) inserted into the card slot (138) is hemispherical.

7. The gimbal for an ultrasonic flaw detector head according to claim 4, wherein: The spring (136) and the limit plate (135) are both located inside the threaded cylinder (132).

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