Supporting device for TOFD simulation block in nondestructive testing

Abstract

The utility model belongs to TOFD simulation test block detection technical field provides the support device for TOFD simulation test block in nondestructive testing, including the support platform, the one side of support platform is fixedly installed with the positioning assembly, the below of support platform is equipped with two support base plate, the upper surface of two support base plates all is fixedly installed with the support pipe, the top of two support pipes all is fixedly embedded with bearing ring, the inner ring of two bearing rings all is fixedly connected with the thread ring, the inner ring of two thread rings all is screwed with the thread lifting rod, the top of two thread lifting rods all is fixedly connected with the bottom surface of support platform. The utility model through the two output ends of double -end motor can drive the worm rotation in synchronism, can with the meshing drive of worm and turbine, can change into the coaxial rotation of turbine and thread ring with the rotary motion.

Description

Technical Field

[0001] This utility model belongs to the field of TOFD simulation test block testing technology, and specifically relates to a support device for TOFD simulation test blocks in non-destructive testing. Background Technology

[0002] TOFD simulation test blocks are specialized standard parts used for experimental verification, personnel training, and equipment debugging in ultrasonic diffraction time-of-flight testing technology. Their core function is to quantitatively verify the detection capability by pre-setting artificial defects. The base material is mostly carbon steel such as 45# steel, and some contain alloy steel weld overlay. The surface is processed with artificial cracks, pores, and other defects with a width of 0.2mm according to the testing requirements. In industrial scenarios, it is used to verify the feasibility of testing processes such as PE pipe welds, as a training carrier for testing personnel to identify defect signals, and can also assist in debugging parameters such as equipment gain and scanning speed.

[0003] In TOFD nondestructive testing, the simulated test block needs to be stably supported by a support platform. However, existing devices are difficult to adjust the support height flexibly and cannot adapt to test blocks of different thicknesses and sizes, resulting in poor probe coupling. In addition, the lack of a reliable positioning and clamping structure makes the test block prone to displacement due to external forces or vibrations, which can disrupt its stable posture and lead to deviations in the test data, affecting the accuracy of defect judgment.

[0004] Therefore, it is necessary to design a support device for TOFD simulation test blocks in non-destructive testing, which can at least solve some of the above problems and defects. Summary of the Invention

[0005] To address the above technical problems, this invention proposes a support device for TOFD simulation test blocks in nondestructive testing, which can at least solve some of the above problems and defects.

[0006] The technical solution of this utility model is: This utility model proposes a support device for TOFD simulation test blocks in nondestructive testing, including a support platform. A positioning component is fixedly installed on one side of the support platform. Two support base plates are provided below the support platform. Support tubes are fixedly installed on the upper surfaces of the two support base plates. Bearing rings are fixedly embedded at the top ends of the two support tubes. Threaded rings are fixedly connected to the inner rings of the two bearing rings. Threaded lifting rods are threadedly connected to the inner rings of the two threaded rings. The top ends of the two threaded lifting rods are fixedly connected to the bottom surface of the support platform. A dual-head motor is fixedly installed on the bottom surface of the support platform. Worms are fixedly installed at the two output ends of the dual-head motor. Turbines are fixedly connected to the outer surfaces of the two threaded rings, and the worms mesh with the turrets.

[0007] Preferably, the positioning component includes a transmission slide fixedly installed on one side of a support platform, two bearing rings fixedly embedded in the inner wall of the transmission slide, the inner rings of the two bearing rings being fixedly connected to a positive and negative screw, the outer surfaces of the two positive and negative screws being threadedly connected to a threaded transmission plate, a first bearing seat fixedly installed on the inner wall of the transmission slide, the outer surfaces of the positive and negative screws being fixedly connected to the inner rings of the first bearing seat, and a rotating handle being fixedly connected to both ends of the positive and negative screws.

[0008] Preferably, two movable clamping plates are provided above the support platform, and one side of each of the two threaded transmission plates is fixedly connected to one side of the two movable clamping plates. Silicone protective pads are fixedly connected to the sides of the two movable clamping plates that are close to each other.

[0009] Preferably, two second bearing seats are fixedly installed on the bottom surface of the support platform, and the outer surfaces of the two worm gears are respectively fixedly connected to the inner rings of the two second bearing seats.

[0010] Preferably, the upper surfaces of the two supporting base plates are fixedly connected to limiting slides, the inner walls of the two limiting slides are slidably connected to limiting slide plates, and the upper surfaces of the two limiting slide plates are fixedly connected to the bottom surface of the supporting platform.

[0011] Preferably, the upper surface of the support platform is provided with a support groove, and the inner wall of the support groove is provided with a silicone layer.

[0012] This utility model has the following advantages and effects compared with the prior art: (1) The two output ends of the dual-head motor can drive the worm to rotate synchronously. With the meshing transmission of the worm and the turbine, the rotational motion can be converted into the coaxial rotation of the turbine and the threaded ring. Since the inner ring of the threaded ring is threadedly connected to the threaded lifting rod, the threaded lifting rod will move smoothly up and down along the axis of the support tube, thereby driving the support plate fixed at the top to achieve height adjustment. The staff only needs to control the start and stop of the dual-head motor according to the thickness of the test block to adjust the support plate to the height that meets the coupling requirements of the probe. There is no need to replace additional parts, which improves the adaptability of the device to test blocks of different thicknesses, reduces adjustment time, and improves the efficiency of the test preparation stage.

[0013] (2) By placing the TOFD simulation test block in the support groove of the support plate, the TOFD simulation test block can be initially positioned. In addition, rotating the positive and negative screws can cause the two threaded transmission plates to move towards each other along the inner wall of the transmission slide, causing the moving clamping plate to approach the test block. When the silicone protective pad on the inner side of the moving clamping plate is in contact with the side of the test block, the two moving clamping plates can form a stable clamping force, preventing the test block from shifting during the test, ensuring the test accuracy and the safety of the test block, and meeting the strict requirements of non-destructive testing for the stability of the test block posture. Attached Figure Description

[0014] Figure 1 This is a frontal three-dimensional structural diagram of the support device for the TOFD simulation test block in the non-destructive testing of this utility model; Figure 2 This is a three-dimensional structural diagram of the support device for the TOFD simulation test block in the non-destructive testing of this utility model, viewed from below. Figure 3 This is a side sectional view of the support device for the TOFD simulation test block in the non-destructive testing of this utility model; Figure 4 This is a top sectional view of the positioning component in the support device for TOFD simulation test blocks in the nondestructive testing of this utility model; Figure 5 This is a top-view three-dimensional structural diagram of the turbine in the support device for the TOFD simulation test block in the non-destructive testing of this utility model.

[0015] Reference numerals: 1. Support plate; 2. Positioning assembly; 21. Transmission slide; 22. Bearing ring; 23. Positive and negative screws; 24. Threaded transmission plate; 25. First bearing seat; 26. Rotating handle; 3. Moving clamp; 4. Support base plate; 5. Support tube; 6. Dual-head motor; 7. Worm gear; 8. Bearing ring; 9. Threaded ring; 10. Turbine; 11. Limiting slide; 12. Limiting slide plate; 13. Threaded lifting rod; 14. Support groove; 15. Silicone protective pad; 16. Second bearing seat. Detailed Implementation

[0016] To enable those skilled in the art to better understand this utility model, it will now be further described in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of this utility model.

[0017] Example 1: like Figures 1-5As shown, this utility model provides a support device for TOFD simulation test blocks in nondestructive testing, including a support platform 1. A positioning component 2 is fixedly installed on one side of the support platform 1. Two support base plates 4 are provided below the support platform 1. Support tubes 5 are fixedly installed on the upper surfaces of the two support base plates 4. Bearing rings 8 are fixedly embedded at the top of the two support tubes 5. Threaded rings 9 are fixedly connected to the inner rings of the two bearing rings 8. Threaded lifting rods 13 are threadedly connected to the inner rings of the two threaded rings 9. The tops of the two threaded lifting rods 13 are fixedly connected to the bottom surface of the support platform 1. A dual-head motor 6 is fixedly installed on the bottom surface of the support platform 1. The two outputs of the dual-head motor 6... Worm gears 7 are fixedly installed at both ends, and turbines 10 are fixedly connected to the outer surfaces of the two threaded rings 9, with the worm gears 7 and turbines 10 meshing. Specifically, the support plate 1 is used to place the TOFD simulation test block, the positioning component 2 assists in positioning the test block, the support base plate 4 provides the installation foundation for the support tube 5, and the bearing ring 8 inside the support tube 5 fixes the threaded rings 9 so that the threaded rings 9 can rotate stably. The threaded lifting rod 13 is threadedly engaged with the threaded rings 9, and the worm gear 7 is driven to rotate by the double-headed motor 6. The worm gear 7 meshes with the turbines 10, driving the threaded rings 9 to rotate, thereby realizing that the threaded lifting rod 13 drives the support plate 1 to rise and fall, meeting the height requirements of test blocks of different thicknesses.

[0018] In this embodiment, the positioning component 2 includes a transmission slide 21 fixedly installed on one side of the support plate 1. Two bearing rings 22 are fixedly embedded in the inner wall of the transmission slide 21. The inner rings of the two bearing rings 22 are fixedly connected to the positive and negative screws 23. The outer surfaces of the two positive and negative screws 23 are threadedly connected to the threaded transmission plates 24. A first bearing seat 25 is fixedly installed on the inner wall of the transmission slide 21. The outer surfaces of the positive and negative screws 23 are fixedly connected to the inner rings of the first bearing seat 25. Rotating handles 26 are fixedly connected to both ends of the positive and negative screws 23. Specifically, the transmission slide 21 can provide an installation frame for the positioning component 2. The bearing rings 22 and the first bearing seat 25 jointly support the positive and negative screws 23 to ensure their stable rotation. Rotating the rotating handles 26 can drive the positive and negative screws 23 to rotate, which can provide power for the subsequent clamping of the test block and realize the transmission function of the positioning component 2.

[0019] In this embodiment, two movable clamping plates 3 are provided above the support platform 1. One side of each of the two threaded transmission plates 24 is fixedly connected to one side of each of the two movable clamping plates 3. Silicone protective pads 15 are fixedly connected to the sides of the two movable clamping plates 3 that are close to each other. Two second bearing seats 16 are fixedly installed on the bottom surface of the support platform 1. The outer surfaces of the two worm gears 7 are fixedly connected to the inner rings of the two second bearing seats 16. Limiting slides 11 are fixedly connected to the upper surfaces of the two support base plates 4. Limiting slide plates 12 are slidably connected to the inner walls of the two limiting slides 11. The upper surface of 12 is fixedly connected to the bottom surface of the support plate 1. The upper surface of the support plate 1 is provided with a support groove 14, and the inner wall of the support groove 14 is provided with a silicone layer. Specifically, the two movable clamping plates 3 are driven to move in opposite directions by rotating the positive and negative screws 23. The silicone protective pad 15 prevents damage to the test block when clamping. The second bearing seat 16 fixes the worm gear 7 to improve its rotational stability. The limiting slide 11 cooperates with the limiting slide plate 12 to prevent the support plate 1 from shifting when it is raised and lowered. The support groove 14 and the inner wall silicone layer further fix the test block and protect the surface of the test block to ensure that the test block is placed stably.

[0020] Working principle: When the TOFD simulation block support device is used in this non-destructive testing, and when it is necessary to adapt to TOFD simulation blocks of different thicknesses, the dual-head motor 6 at the bottom of the device is started, which enables the two output ends to drive the worm gear 7 to rotate synchronously. Since the worm gear 7 meshes with the turbine 10, the rotation of the worm gear 7 will be converted into the coaxial rotation of the turbine 10 and the threaded ring 9. At this time, the threaded lifting rod 13, which is connected to the inner ring of the threaded ring 9, will move up and down along the axis of the support tube 5, thereby driving the support plate 1 fixed at the top to rise and fall. The operator can adjust the height of the support plate 1 by controlling the start and stop of the dual-head motor 6 according to the thickness of the test block until the probe coupling requirements are met.

[0021] Next, the TOFD simulation test block is placed in the support groove 14 on the support platform 1. Then, the rotating handles 26 at both ends of the transmission slide 21 are rotated, which can drive the positive and negative screws 23 to rotate. Since the two threaded transmission plates 24 connected to the surface of the positive and negative screws 23 are fixed to the two moving clamps 3 respectively, the rotation of the positive and negative screws 23 will cause the two threaded transmission plates 24 to move towards each other along the inner wall of the transmission slide 21, thereby driving the moving clamps 3 to approach the test block. When the silicone protective pad 15 on the inner side of the moving clamps 3 is in contact with the side of the test block, the rotating handles 26 are stopped. At this time, the two moving clamps 3 form a stable clamping force on the test block, ensuring the stability of the test block posture during the test.

[0022] The above are merely preferred embodiments of the present utility model and do not limit the patent scope of the present utility model. All equivalent changes and modifications made within the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A support device for TOFD simulation test blocks in nondestructive testing, comprising a support platform (1), characterized in that: A positioning component (2) is fixedly installed on one side of the support platform (1). Two support base plates (4) are provided below the support platform (1). Support tubes (5) are fixedly installed on the upper surface of the two support base plates (4). Bearing rings (8) are fixedly embedded at the top of the two support tubes (5). Threaded rings (9) are fixedly connected to the inner rings of the two bearing rings (8). Threaded lifting rods (13) are threadedly connected to the inner rings of the two threaded rings (9). The tops of the two threaded lifting rods (13) are fixedly connected to the bottom surface of the support platform (1). A double-headed motor (6) is fixedly installed on the bottom surface of the support platform (1). Worms (7) are fixedly installed at the two output ends of the double-headed motor (6). Turbines (10) are fixedly connected to the outer surfaces of the two threaded rings (9), and the worms (7) mesh with the turbines (10).

2. The support device for TOFD simulation test blocks in nondestructive testing according to claim 1, characterized in that: The positioning component (2) includes a transmission slide (21) fixedly installed on one side of the support plate (1). Two bearing rings (22) are fixedly embedded in the inner wall of the transmission slide (21). The inner rings of the two bearing rings (22) are fixedly connected to a positive and negative screw (23). The outer surfaces of the two positive and negative screws (23) are threadedly connected to a threaded transmission plate (24).

3. The support device for TOFD simulation test blocks in nondestructive testing according to claim 2, characterized in that: Two movable clamping plates (3) are provided above the support platform (1). One side of the two threaded transmission plates (24) is fixedly connected to one side of the two movable clamping plates (3), and silicone protective pads (15) are fixedly connected to the sides of the two movable clamping plates (3) that are close to each other.

4. The support device for TOFD simulation test blocks in nondestructive testing according to claim 2, characterized in that: The inner wall of the transmission slide (21) is fixedly installed with a first bearing seat (25), the outer surface of the positive and negative screws (23) is fixedly connected to the inner ring of the first bearing seat (25), and both ends of the positive and negative screws (23) are fixedly connected with rotating handles (26).

5. The support device for TOFD simulation test blocks in nondestructive testing according to claim 1, characterized in that: Two second bearing seats (16) are fixedly installed on the bottom surface of the support plate (1), and the outer surfaces of the two worm gears (7) are respectively fixedly connected to the inner rings of the two second bearing seats (16).

6. The support device for TOFD simulation test blocks in nondestructive testing according to claim 1, characterized in that: The upper surfaces of the two supporting base plates (4) are fixedly connected to the limiting slides (11), the inner walls of the two limiting slides (11) are slidably connected to the limiting slides (12), and the upper surfaces of the two limiting slides (12) are fixedly connected to the bottom surface of the supporting platform (1).

7. The support device for TOFD simulation test blocks in nondestructive testing according to claim 1, characterized in that: The upper surface of the support plate (1) is provided with a support groove (14), and the inner wall of the support groove (14) is provided with a silicone layer.

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