Positioning tool for ultrasonic wall thickness measurement

Abstract

The utility model discloses a positioning tool for ultrasonic wall thickness measurement, which comprises an X-axis sliding seat and a Y-axis sliding seat which are in a rectangular coordinate system structure, the X-axis sliding seat and the Y-axis sliding seat are respectively connected with a first sliding block and a second sliding block in a sliding mode, the first sliding block and the second sliding block are respectively provided with through holes arranged along the length direction, and the through holes are communicated with the X-axis sliding seat and the Y-axis sliding seat. A first moving rod and a second moving rod are arranged in the first sliding block and the second sliding block in a penetrating mode through penetrating holes respectively, the first moving rod is kept parallel to the Y-axis sliding base, the second moving rod is kept parallel to the X-axis sliding base, one end of the first moving rod and one end of the second moving rod are fixedly connected and used for placing an ultrasonic probe, and scale marks are arranged on the X-axis sliding base and the Y-axis sliding base respectively; through mutual cooperation of the first sliding block and the second sliding block, the first sliding block and the second sliding block are moved according to the machining position or the machining coordinate point of the cavity in the radiator workpiece, so that the intersection point for placing the ultrasonic probe is aligned with the position of the cavity, the time for measuring the wall thickness through cavity positioning is shortened, and the measurement efficiency and the measurement accuracy are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wall thickness detection, in particular to a positioning tool for ultrasonic wall thickness measurement. Background Art

[0002] In the petrochemical, electric power, smelting and other industries, the wall thickness measurement of workpieces and pipelines is a must-check item. Please refer to the attached Figure 1 The radiator workpiece shown in the figure is composed of an upper cover and a base, which has multiple cavities and slots of different sizes inside, and a partition wall is formed between two adjacent cavities or slots. After the upper cover and the base are brazed and sealed, in order to avoid damage to the cavity structure and excessive milling of the wall thickness margin when the workpiece shape is re-processed by subsequent CNC fine milling, it is necessary to use an ultrasonic thickness gauge to detect the position of the partition wall and the cavity wall thickness margin in advance; however, the cavity and the slot are arranged inside the workpiece according to the processing position. After the workpiece is brazed, the operator cannot directly see the position of the cavity and the slot, and the existing ultrasonic detection equipment cannot accurately locate the position of the partition wall, and thus cannot measure the wall thickness. The ultrasonic probe can only be slightly moved step by step to find the position of the partition wall, and the measurement efficiency is low and the accuracy is low. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a positioning tool for ultrasonic wall thickness measurement to solve the above problems.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A positioning tool for ultrasonic wall thickness measurement, comprising an X-axis slide and a Y-axis slide in a rectangular coordinate system structure, wherein a slider 1 and a slider 2 are slidably connected to the X-axis slide and the Y-axis slide, respectively, and the slider 1 and the slider 2 are both provided with through holes arranged along their length directions, and a moving rod 1 and a moving rod 2 are respectively penetrated through the through holes in the slider 1 and the slider 2, the moving rod 1 is kept parallel to the Y-axis slide, and the moving rod 2 is kept parallel to the X-axis slide, and one end of the moving rod 1 and the moving rod 2 is fixedly connected and used for placing an ultrasonic probe, and scale lines are provided on the X-axis slide and the Y-axis slide.

[0006] In the above utility model, further, both the X-axis slide and the Y-axis slide are provided with slide rails arranged along the length direction, and the bottoms of the slide block 1 and the slide block 2 are provided with slide grooves matching with the slide rails.

[0007] In the above utility model, further, the slide rail is a dovetail structure, and the slide groove is a dovetail groove.

[0008] In the above utility model, further, the upper surfaces of the slider 1 and the slider 2 are provided with a threaded hole 1 connected to the through hole, and the threaded hole 1 is internally threaded with a fastening bolt 1 for fixing the moving rod 1 and the moving rod 2.

[0009] In the above utility model, further, the upper surfaces of the sliders 1 and 2 are also provided with threaded holes 2 connected to the slide grooves, and the threaded holes 2 are internally threaded with fastening bolts 2 for fixing the sliders 1 and 2.

[0010] In the above utility model, further, a pointer is provided on the surface of the slider 1 and the slider 2, and the pointer is on the same vertical plane as the central axis of the through hole.

[0011] In the above utility model, further, the cross-section of the X-axis slide and the Y-axis slide is an inverted L-shaped structure.

[0012] In the above utility model, further, the other ends of the X-axis slide and the Y-axis slide are provided with limit blocks.

[0013] In the above utility model, further, a positioning ring is provided at the connection between the moving rod 1 and the moving rod 2, and the positioning ring is used to place the ultrasonic probe.

[0014] The beneficial effects of the utility model are:

[0015] The utility model uses the mutual cooperation of the slider one and the slider two to move the slider one and the slider two according to the processing position or processing coordinate point of the internal cavity of the radiator workpiece so that the intersection point used to place the ultrasonic probe is aligned with the position of the cavity, and the wall thickness is measured by measuring the distance between the two cavities, which reduces the time for measuring the wall thickness through cavity positioning and greatly improves the measurement efficiency. At the same time, according to the scale lines on the X-axis slide and the Y-axis slide, the precise measurement accuracy is improved to avoid damage to the cavity structure during subsequent CNC fine milling of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a workpiece to be tested according to the utility model.

[0017] Figure 2 It is a top view of the positioning tool of the utility model.

[0018] Figure 3 A bottom view of the positioning tool of the utility model;

[0019] Figure 4 for Figure 2 Sectional view of AA in the middle;

[0020] Figure 5 It is a left view of the positioning tool of the utility model.

[0021] In the figure, 1-X-axis slide, 2-Y-axis slide, 3-slider block 1, 4-slider block 2, 5-slide rail, 6-through hole, 7-moving rod 1, 8-moving rod 2, 9-slide groove, 10-threaded hole 1, 11-fastening bolt 1, 12-threaded hole 2, 13-fastening bolt 2, 14-limiting block, 15-positioning ring, 16-workpiece. DETAILED DESCRIPTION

[0022] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0023] Please see attached Figure 1-2 As shown, a positioning tool for ultrasonic wall thickness measurement comprises an X-axis slide 1 and a Y-axis slide 2 in a rectangular coordinate system structure, wherein the intersection of the central axes of the X-axis slide 1 and the Y-axis slide 2 is the coordinate origin, the X-axis slide 1 and the Y-axis slide 2 are both provided with scale lines with the coordinate origin as the initial scale, the X-axis slide 1 and the Y-axis slide 2 are respectively slidably connected with a slider 1 3 and a slider 2 4, the slider 1 3 and the slider 2 4 are both provided with a through hole 6 arranged along the length direction thereof, a moving rod 1 7 and a moving rod 2 8 are respectively penetrated through the through hole 6 in the slider 1 and the slider 2 4, the moving rod 1 7 is kept parallel to the Y-axis slide 2, the moving rod 2 8 is kept parallel to the X-axis slide 1, and one end of the moving rod 1 7 and the moving rod 2 8 is fixedly connected and used for placing an ultrasonic probe, and the moving rod 1 7 and the moving rod 2 8 can move back and forth in the through hole 6 with the movement of the ultrasonic probe;

[0024] Specifically, the coordinate origin is made to face a straight leg of the radiator workpiece 16, and a rectangular coordinate system is established on the surface of the radiator with the right angle as the origin. The slider 13 is moved to the specified position, and the moving rod 28 moves in the perforation 6 with the movement of the slider 13. Similarly, the slider 24 is moved to the specified position, and the moving rod 17 moves in the perforation 6 with the movement of the moving slider 24. That is, it is only necessary to move the slider 13 and the slider 24 to the corresponding scale lines according to the coordinate points of the processing drawing of the radiator workpiece 16, and the connection point of the moving rod 17 and the moving rod 28 drives the ultrasonic probe to automatically locate the approximate coordinate point of the partition wall on the processing drawing, and then accurately locate the actual coordinate point of the partition wall through the measurement result of the ultrasonic probe, and obtain the actual value of the cavity wall thickness. The device can quickly and accurately locate, save the time of manually exploring the position of the partition wall through the ultrasonic probe, improve the measurement efficiency, and avoid the process of manually placing the processing drawing on the surface of the radiator, comparing the positions one by one, marking them, and then measuring them with the ultrasonic probe.

[0025] Among them, a positioning ring 15 is provided at the connection between the moving rod 1 7 and the moving rod 2 8, and the center of the positioning ring 15 is the intersection of the moving rod 1 7 and the moving rod 2 8, thereby ensuring that the x-coordinate and y-coordinate corresponding to the slider 1 3 and the slider 2 4 are the coordinate points of the positioning ring 15, and the positioning ring 15 is used to place the ultrasonic probe. The size of the positioning ring 15 is just enough to hold the ultrasonic probe without loosening it, ensuring that the center of the positioning ring 15 is the circle of the ultrasonic probe. After the ultrasonic probe is placed on the positioning ring 15, there is no need for the staff to hold it.

[0026] Please see attached Figure 5 As shown, in order to further improve the measurement accuracy, the surfaces of the slider 1 3 and the slider 2 4 are provided with a pointer, and the pointer is on the same vertical plane as the central axis of the through hole 6, ensuring that the coordinate positions corresponding to the slider 1 3 and the slider 2 4 are the coordinate points of the positioning ring 15.

[0027] Please see attached Figure 4 As shown, both the X-axis slide 1 and the Y-axis slide 2 are provided with slide rails 5 arranged along the length direction, and the bottoms of the sliders 1 3 and 2 are provided with slide grooves 9 that cooperate with the slide rails 5, and the sliders 1 3 and 2 4 move back and forth along the length direction of the slide rails 5 through the slide grooves 9.

[0028] In the above embodiment, preferably, in order to prevent the slider from falling off the slide rail 5 and improve the stability of the device, the slide rail 5 is a dovetail structure and the slide groove 9 is a dovetail groove; at the same time, to prevent the slider from falling off from the other end of the slide rail 5, a limit block 14 is provided at the other end of the X-axis slide 1 and the Y-axis slide 2.

[0029] The upper surfaces of the slider 1 3 and the slider 2 4 are also provided with a threaded hole 10 connected with the through hole 6, and the threaded hole 10 is internally threaded with a fastening bolt 11 for fixing the moving rod 1 7 and the moving rod 2 8. When the slider 1 3 and the slider 2 4 are moved to the corresponding coordinate position to be detected, the moving rod 1 7 and the moving rod 2 8 move accordingly and drive the positioning ring 15 and the ultrasonic probe to automatically locate the point to be detected. In order to prevent the staff from accidentally touching the moving rod 1 7 and the moving rod 2 8 and causing the slider 1 3 and the slider 2 4 to move and cause inaccurate positioning, the moving rod 1 7 and the moving rod 2 8 can be fixed by tightening the fastening bolt 11;

[0030] Similarly, the upper surfaces of the slider 1 3 and the slider 2 4 are also provided with a threaded hole 2 12 connected to the slide groove 9, and the threaded hole 2 12 is internally threaded with a fastening bolt 2 13 for fixing the slider 1 3 and the slider 2 4; when the x-coordinate is fixed and only the ultrasonic probe needs to be moved on the y-axis, the slider 1 3 can be fixed by the fastening bolt 2 13 so that it no longer slides, and then the moving rod 2 8 is fixed by the fastening bolt 11, and the moving slider 2 4 can be moved to realize the movement of the ultrasonic probe in the y-axis direction, which is easy to operate and has high precision.

[0031] Please see attached Figure 3-4 As shown, the cross-section of the X-axis slide 1 and the Y-axis slide 2 is an inverted L-shaped structure, that is, a limited step is formed under the X-axis slide and the Y-axis slide so that the side walls of the step are in close contact with the X-axis and Y-axis two measuring reference edges of the radiator workpiece 16 to be measured, while ensuring that the positioning tool can be stably placed on the surface of the product to be measured, and at the same time ensuring that the coordinate origin of the X-axis slide 1 and the Y-axis slide 2 coincides with the radiator workpiece 16 at a right angle.

[0032] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A positioning tool for ultrasonic wall thickness measurement, characterized in that: The invention comprises an X-axis slide (1) and a Y-axis slide (2) in a rectangular coordinate system structure, wherein a slider 1 (3) and a slider 2 (4) are respectively slidably connected to the X-axis slide (1) and the Y-axis slide (2), wherein the slider 1 (3) and the slider 2 (4) are both provided with through holes (6) arranged along their length directions, wherein a moving rod 1 (7) and a moving rod 2 (8) are respectively penetrated through the through holes (6) in the slider 1 (3) and the slider 2 (4), wherein the moving rod 1 (7) is kept parallel to the Y-axis slide (2), and the moving rod 2 (8) is kept parallel to the X-axis slide (1), and one end of the moving rod 1 (7) and the moving rod 2 (8) are fixedly connected and used for placing an ultrasonic probe, and scale lines are respectively provided on the X-axis slide (1) and the Y-axis slide (2).

2. The ultrasonic wall thickness measurement positioning tool according to claim 1, characterized in that: Both the X-axis slide (1) and the Y-axis slide (2) are provided with slide rails (5) arranged along the length direction, and the bottoms of the slide block 1 (3) and the slide block 2 (4) are provided with slide grooves (9) matching with the slide rails (5).

3. The ultrasonic wall thickness measurement positioning tool according to claim 2, characterized in that: The slide rail (5) is a dovetail structure, and the slide groove (9) is a dovetail groove.

4. The ultrasonic wall thickness measurement positioning tool according to claim 2, characterized in that: The upper surfaces of the sliders 1 (3) and 2 (4) are provided with threaded holes 1 (10) connected to the through holes (6); the threaded holes 1 (10) are internally threadedly connected with fastening bolts 1 (11) for fixing the moving rods 1 (7) and 2 (8).

5. The ultrasonic wall thickness measurement positioning tool according to claim 4, characterized in that: The upper surfaces of the slider 1 (3) and the slider 2 (4) are also provided with a threaded hole 2 (12) connected to the slide groove (9), and the threaded hole 2 (12) is internally threadedly connected with a fastening bolt 2 (13) for fixing the slider 1 (3) and the slider 2 (4).

6. The ultrasonic wall thickness measurement positioning tool according to claim 2, characterized in that: The surfaces of the slider 1 (3) and the slider 2 (4) are provided with pointers, and the pointers are located on the same vertical plane as the central axis of the through hole (6).

7. The ultrasonic wall thickness measurement positioning tool according to claim 2, characterized in that: The cross-sections of the X-axis slide (1) and the Y-axis slide (2) are in an inverted L-shaped structure.

8. The ultrasonic wall thickness measurement positioning tool according to claim 2, characterized in that: The other ends of the X-axis slide (1) and the Y-axis slide (2) are provided with limit blocks (14).

9. The ultrasonic wall thickness measurement positioning tool according to claim 1, characterized in that: A positioning ring (15) is provided at the connection between the moving rod 1 (7) and the moving rod 2 (8), and the positioning ring (15) is used to place an ultrasonic probe.

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