Nondestructive inspection calibration block

Abstract

The utility model discloses a nondestructive inspection calibration block, and relates to the field of equipment calibration, the nondestructive inspection calibration block comprises a bottom plate, a leveling mechanism and a motor fixedly mounted on the upper surface of the bottom plate, a first sliding block is arranged above the bottom plate, a calibration block is clamped in the first sliding block arranged above the bottom plate, a first fixing cavity is formed in one side of the interior of the calibration block, and a second fixing cavity is formed in the other side of the interior of the calibration block; a first fixing cavity is formed in one side of the interior of the calibration block, a second fixing cavity is formed in the other side of the interior of the calibration block, a square groove is formed in the bottom of the calibration block, and an attitude sensor is fixedly installed in the square groove. Errors caused by defects of the calibration block and non-horizontal and non-vertical states are avoided, the working efficiency is improved, meanwhile, scratches of the calibration surface are avoided, and it is ensured that each detection can be carried out based on an accurate calibration value.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of equipment calibration, in particular to a non-destructive testing calibration block. BACKGROUND

[0002] The calibration block is an object with known characteristics and standard dimensions used in measurement, detection and calibration process, which is usually made of a specific material with uniform physical and chemical properties, and the design and manufacturing precision of the calibration block is high to ensure that it can provide accurate and reliable reference standards.

[0003] The calibration surface of the non-destructive testing calibration block in the prior art is exposed, calibrated by two known thickness calibration blocks, and the non-destructive testing calibration block only has two known thicknesses, the calibration range is small, if the non-destructive testing requires a larger calibration range, multiple calibration blocks need to be equipped, and the calibration surface is easy to scratch, when the calibration surface is scratched, it will directly affect the test results, the accuracy of the horizontal and vertical is an important prerequisite to ensure the reliability and repeatability of the measurement results, when the non-destructive testing instrument is detected, the calibration block is not horizontal and vertical, which will introduce additional error factors and reduce the detection accuracy, at the same time, it is very disadvantageous for quality control and long-term monitoring, and cannot effectively compare the detection results at different times or different batches. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the accuracy of the calibration block, the present application provides a non-destructive testing calibration block.

[0005] The non-destructive testing calibration block provided by the present application adopts the following technical scheme:

[0006] The non-destructive testing calibration block comprises a bottom plate and a leveling mechanism, the leveling mechanism comprises a motor fixedly installed on the upper surface of the bottom plate, a sliding block one is arranged above the bottom plate, a calibration block is clamped in the sliding block one, a fixed cavity one is formed in one side of the calibration block, a fixed cavity two is formed in the other side of the calibration block, a square groove is formed in the bottom of the calibration block, and a posture sensor is fixedly installed in the square groove.

[0007] By adopting the above technical scheme, the fixed cavity one and the fixed cavity two are arranged, and the height of the stepped surface in the fixed cavity one and the fixed cavity two is controlled, so that the calibration range is increased, the instrument is more accurate during calibration, the operation and carrying are facilitated, and the efficiency and accuracy are improved.

[0008] Preferably, the output end of the motor is fixedly connected with two gear wheels one, and the outer part of each gear wheel one is engaged with an internal gear ring.

[0009] By adopting the above technical scheme, the two gear wheels one and the internal gear ring are arranged, so that the output of the motor output shaft is transmitted to the two gear wheels two.

[0010] Preferably, the upper surface of the bottom plate is fixedly connected with a trapezoidal groove block, the inside of the trapezoidal groove block is slidably connected with a trapezoidal sliding block, and the upper end of the trapezoidal sliding block is rotatably connected with a rotating plate.

[0011] By adopting the above technical scheme, the angle of the rotating plate can be adjusted by the trapezoidal sliding block sliding in the trapezoidal groove block.

[0012] Preferably, the inside of the trapezoidal sliding block is threadedly connected with a threaded column rotatably connected in the trapezoidal groove block, and the side away from the trapezoidal groove block of the threaded column is functionally connected with a gear two rotatably connected on the other side of the inner gear ring.

[0013] By adopting the above technical scheme, the trapezoidal sliding block can slide in the trapezoidal groove block through the threaded column by the gear two.

[0014] Preferably, the other side of the upper surface of the bottom plate is fixedly connected with a fixed block, and the inside of the fixed block is movably penetrated with a rotating frame rotatably connected on both sides of the middle part of the rotating plate.

[0015] By adopting the above technical scheme, the rotating plate can be supported when adjusting the angle of the rotating plate by the rotating frame.

[0016] Preferably, the upper surface of the rotating frame is fixedly connected with a semicircular recess block, the middle part of the semicircular recess block is fixedly connected with a turbine, and the upper end of the turbine is engaged with a worm.

[0017] By adopting the above technical scheme, the angle of the sliding block one can be adjusted by rotating the worm.

[0018] Preferably, the two sides of the semicircular recess block are provided with arc-shaped holes, the bottom of the sliding block one is slidably connected with the two outer walls of the semicircular recess block on both sides, the bottom of the sliding block one is fixedly connected with a fixed group slidably connected in the arc-shaped hole, and the middle inner wall of the two sides of the semicircular recess block is slidably connected with a sliding block two fixed by the fixed group.

[0019] By adopting the above technical scheme, the sliding block one with the adjusted angle can be fixed by the fixed group.

[0020] Preferably, the middle part of the sliding block one is fixedly connected with a clamping block one clamping the worm, and the surface of the sliding block one is fixedly connected with a clamping block two clamping the calibration block.

[0021] By adopting the above technical scheme, the worm can be clamped and prevented from sliding by the clamping block one, and the calibration block can be fixed by the clamping block two.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By using the leveling mechanism, the fixed cavity one and the fixed cavity two, the detection accuracy and precision can be improved, the errors introduced by the defects and non-horizontal and vertical state of the calibration block can be avoided, the defects in the workpiece can be detected more accurately, the reliability of the detection result is improved, multiple calibration blocks are not required, the cost and operation complexity are reduced, the work efficiency is improved, the calibration surface is not scratched, accurate calibration value can be ensured for each detection, effective result comparison can be performed in different time and batch detection, the product quality change trend can be tracked, and a strong basis for quality improvement is provided. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a three-dimensional structure diagram of the non-destructive flaw detection calibration block of the present application.

[0025] Figure 2 It is a partial cutaway view of the leveling mechanism of the non-destructive flaw detection calibration block of the present application.

[0026] Figure 3 It is a partial schematic view of the leveling mechanism of the non-destructive flaw detection calibration block of the present application.

[0027] Figure 4 It is a cutaway view of the non-destructive flaw detection calibration block of the present application.

[0028] Figure 5 It is an analysis diagram of the non-destructive flaw detection calibration block of the present application.

[0029] Reference signs: 1, bottom plate;

[0030] 2, leveling mechanism; 201, motor; 202, gear one; 203, inner gear ring; 204, trapezoidal groove block; 205, trapezoidal sliding block; 206, rotating plate; 207, threaded column; 208, gear two; 209, fixed block; 210, rotating frame; 211, semicircular groove block; 212, turbine; 213, worm; 214, arc-shaped hole; 215, sliding block one; 216, fixed group; 217, sliding block two; 218, clamping block one; 219, clamping block two;

[0031] 3, calibration block; 301, fixed cavity one; 302, fixed cavity two; 303, square groove; 304, attitude sensor. DETAILED DESCRIPTION

[0032] The following will be described in detail in combination with the Figures 1-5 The present application will be further described in detail.

[0033] The present application discloses a non-destructive flaw detection calibration block.

[0034] The observation views (front, back, left, right) of the device are shown in theFigure 1 For reference.

[0035] Embodiment 1

[0036] Reference Figures 1-5 The nondestructive testing calibration block comprises a base plate 1, a leveling mechanism 2, the leveling mechanism 2 comprises a motor 201 fixedly installed on the upper surface of the base plate 1, the middle parts of two gear wheels one 202 are fixedly connected to the outer wall of the output end of the motor 201, the outer parts of the two gear wheels one 202 are in mesh with an inner gear ring 203, the inner parts of the two sides of the inner gear ring 203 are in mesh with and clamped to the outer parts of the gear wheels one 202 and the gear wheels two 208, the bottoms of two trapezoidal groove blocks 204 are fixedly connected to the upper surface of the base plate 1 in a symmetrical manner, the outer wall of a trapezoidal sliding block 205 is slidingly connected to the inner part of the trapezoidal groove block 204, the middle part of the trapezoidal sliding block 205 is screwedly connected to the outer part of a threaded column 207, the top parts of the two trapezoidal sliding blocks 205 are rotatably connected to the two ends of one side of a rotating plate 206 respectively, the two ends of one side of the rotating plate 206 are rotatably connected to the top parts of the trapezoidal sliding blocks 205, the middle parts of two sides of the rotating plate 206 are rotatably connected to the two ends of one side of a rotating frame 210, the outer wall of the threaded column 207 penetrates through the rotating plate 206 and is clamped to the inner part of the trapezoidal groove block 204, the middle part of the threaded column 207 is screwedly connected to the inner part of the trapezoidal sliding block 205, one side surface of the gear wheels two 208 is fixedly connected to one side top end of the threaded column 207, the outer part of the gear wheels two 208 is in mesh with one side of the inner part of the inner gear ring 203, the bottom of a fixed block 209 is fixedly connected to the other side surface of the base plate 1, one side outer wall of the rotating frame 210 is rotatably connected to the inner part of the fixed block 209, the other two ends of one side of the rotating frame 210 are rotatably connected to the two ends of the middle part of the rotating plate 206.

[0037] The bottom of a semicircular groove block 211 is fixedly connected to the center of the upper surface of the rotating plate 206, the middle part of a turbine 212 is fixedly connected to the middle surface of the semicircular groove block 211, the top part of the turbine 212 is in mesh with the bottom of a worm 213, the two ends of the worm 213 are rotatably connected to and clamped to the inner part of a clamping block one 218, the bottom of the worm 213 is in mesh with the top part of the turbine 212, an arc-shaped hole 214 is provided through the two side surfaces of the semicircular groove block 211, a sliding block one 215 is slidingly connected to the surfaces of the two sides of the semicircular groove block 211, a fixed group 216 is composed of a screw and a nut, the top parts of the screws of the two fixed groups 216 are fixedly connected to the bottoms of the two sides of the sliding block one 215 respectively, the screws of the fixed group 216 are slidingly connected to the inner part of the arc-shaped hole 214, a sliding block two 217 is slidingly connected to the arc-shaped inner walls of the two sides of the semicircular groove block 211 through the fixed sliding connection of the screws and the nuts of the fixed group 216, the top parts of the two clamping block ones 218 are fixedly connected to the two ends of the middle part of the sliding block one 215 respectively, the middle parts of the two clamping block ones 218 are clamped to the two ends of the worm 213 respectively, the bottom of a clamping block two 219 is fixedly connected to the upper surface of the sliding block one 215.

[0038] The bottom of the calibration block 3 is clamped on the inner part of the clamping block two 219 around the upper surface of the sliding block one 215, the fixing cavity one 301 is non-throughly arranged on one side of the calibration block 3, the fixing cavity two 302 is non-throughly arranged on the other side of the calibration block 3, the square groove 303 is arranged on the center of the bottom surface of the calibration block 3, and the shell of the attitude sensor 304 is fixedly installed in the square groove 303.

[0039] The motor 201 is an existing device, and the motor 201 further includes a wire, an external power supply and a switch and the like, which are not the main technical features and are not described here. The attitude sensor 304 is an existing device, which can detect the attitude, angle and acceleration and the like of an object in space, so as to determine whether the object is in a balanced state. The attitude sensor 304 is specifically composed of an accelerometer, a gyroscope and the like. The attitude sensor 304 detects the balance of the calibration block 3 through an analog signal output, and transmits measurement data in the form of digital coding through a digital signal output after the detection is completed. The calibration block 3 is leveled through the measurement data. The inner part of the sliding block one 215 is provided with a signal isolation sheet, so as to avoid the influence of the magnetic field of the bottom motor 201 on the accuracy of the non-destructive testing instrument. It should be noted that in order to make the rotating plate 206 and the rotating frame 210 smoothly produce an angle, the rotating plate 206 and the rotating frame 210 have a clamping angle of 0.5-1 degrees in a normal state.

[0040] When the calibration block 3 is manufactured, the fixing cavity one 301 and the fixing cavity two 302 are arranged on the two sides of the inner part of the calibration block 3, and steps of different heights are arranged on the top of the inner part of the fixing cavity one 301 and the fixing cavity two 302. The heights of the steps arranged in the inner part of the fixing cavity one 301 are respectively d point: 10 mm and e point: 5 mm, and the heights of the steps arranged in the inner part of the fixing cavity two 302 are respectively a point: 25 mm, b point: 20 mm and c point: 15 mm (the specific shape can be referred to Figure 5 After that, the bottom of the fixing cavity one 301 and the fixing cavity two 302 of the calibration block 3 are welded and sealed, and then the square groove 303 is arranged on the bottom of the calibration block 3, and the attitude sensor 304 is installed in the inner part of the square groove 303, so as to complete the manufacturing of the calibration block 3.

[0041] When the instrument needs to be calibrated, first, the calibration block 3 is clamped in the inner part of the clamping block two 219, and then the attitude sensor 304 is started, and the calibration block 3 is horizontally detected through the analog signal of the attitude sensor 304.

[0042] When the calibration block 3 is tilted to the left and right sides, the motor 201 is powered through the wires, and then the motor 201 is started through the switch. The output shaft of the motor 201 starts to rotate, and the gear one 202 starts to rotate with the output shaft of the motor 201. Through the rotation of the gear one 202, the inner gear ring 203 starts to rotate with the internal gear two 208. Through the rotation of the gear two 208, the threaded column 207 starts to rotate inside the trapezoidal groove block 204. Through the rotation of the threaded column 207, the trapezoidal sliding block 205 starts to slide outside the threaded column 207 and inside the trapezoidal groove block 204. When the trapezoidal sliding block 205 starts to slide, the rotating plate 206 starts to rotate with the top of the trapezoidal sliding block 205 as the center. Through the rotation of the rotating plate 206, the rotating frame 210 starts to rotate with one side of the fixed block 209 as the center and supports the rotating plate 206. When the left and right sides of the calibration block 3 are adjusted to be horizontal, the output of the motor 201 is stopped through the switch, and the leveling of the left and right sides of the calibration block 3 is completed.

[0043] When the calibration block 3 is tilted to the left and right sides, the fixed group 216 is manually rotated to no longer fix the sliding block one 215 through the sliding block two 217, and then the worm 213 is rotated. Through the rotation of the worm 213, the sliding block one 215 starts to slide on the surface of the turbine 212. When the left and right sides are adjusted to be horizontal, the sliding block one 215 is manually held, and the fixed group 216 on both sides of the sliding block one 215 is rotated to fix the sliding block one 215 through the sliding block two 217. When the fixed group 216 on both sides of the sliding block one 215 is tightened, the leveling of the left and right sides of the calibration block 3 is completed.

[0044] When the leveling of the calibration block 3 is completed, the non-destructive testing instrument probes that need to be calibrated are coupled to points a, b, c, d, and e, respectively. Through different thickness steps, obvious peak values are displayed on the screen of the non-destructive testing instrument. The shutter is placed around the defect indication on the screen, and the instrument can display the defect depth of each point. The instrument displays the defect depth value and the known thickness. If the value is close, the non-destructive testing instrument is in a normal working state.

[0045] The implementation principle of the non-destructive flaw detection calibration block of the embodiment of the application is as follows: first, the fixed cavity one 301 and the fixed cavity two 302 inside the calibration block 3 are manufactured, after completion, a, b, c, d, e points of different height steps are opened inside the fixed cavity one 301 and the fixed cavity two 302, after completion, the calibration block 3 is clamped in the inside of the clamping block two 219, the state of the calibration block 3 is measured by starting the attitude sensor 304, when the calibration block 3 needs to be leveled, the motor 201 is started through the switch, the threaded column 207 is rotated in the inside of the trapezoidal groove block 204 through the transmission of the gear one 202, the inner gear ring 203 and the gear two 208, the trapezoidal sliding block 205 starts to slide in the inside of the trapezoidal groove block 204 and outside the threaded column 207, through the sliding of the trapezoidal sliding block 205, the rotating frame 210 starts to support the rotating plate 206 to rotate on the top of the trapezoidal sliding block 205, the left and right sides are leveled, then the worm 213 is matched, the sliding block one 215 is fixed by rotating the fixed group 216, then the worm 213 is rotated, the left and right sides of the calibration block 3 are leveled, after leveling, the sliding block one 215 is fixed by the fixed group 216, the horizontal and vertical placement of the calibration block 3 can be completed, then the non-destructive flaw detection instrument probes to be calibrated are coupled to the a, b, c, d, e points respectively, the calibration of the non-destructive flaw detection instrument can be completed.

[0046] The above are preferred embodiments of the application, and do not limit the protection scope of the application, therefore: all equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A non-destructive testing calibration block, comprising a base plate (1), characterized in that: a leveling mechanism (2) is arranged on the upper surface of the base plate (1), the upper surface of the base plate (1) is provided with a sliding block (215), the sliding block (215) is provided inside the base plate (1), a calibration block (3) is clamped inside the sliding block (215), a fixed cavity (301) is formed on one side of the calibration block (3), a fixed cavity (302) is formed on the other side of the calibration block (3), a square groove (303) is formed on the bottom of the calibration block (3), and a posture sensor (304) is fixedly arranged inside the square groove (303). The output end of the motor (201) is fixedly connected with two gear wheels (202), and the outer part of the gear wheels (202) is meshed with an internal gear ring (203).

2. The NDT calibration block of claim 1, wherein: The upper surface of the base plate (1) is fixedly connected with a trapezoidal groove block (204), the trapezoidal groove block (204) is slidably connected with a trapezoidal sliding block (205), and the upper end of the trapezoidal sliding block (205) is rotatably connected with a rotating plate (206).

3. The nondestructive inspection calibration block of claim 1, wherein: The trapezoidal sliding block (205) is threadedly connected with a threaded column (207) rotatably connected inside the trapezoidal groove block (204), and the side of the threaded column (207) away from the trapezoidal groove block (204) is fixedly connected with a gear wheel (208) rotatably connected on the other side of the internal gear ring (203).

4. The nondestructive inspection calibration block of claim 3, wherein: The other side of the upper surface of the base plate (1) is fixedly connected with a fixed block (209), and the fixed block (209) is movably penetrated with a rotating frame (210) rotatably connected on both sides of the middle part of the rotating plate (206).

5. The NDT calibration block of claim 1, wherein: The upper surface of the rotating frame (210) is fixedly connected with a semicircular groove block (211), the middle part of the semicircular groove block (211) is fixedly connected with a turbine (212), and the upper end of the turbine (212) is meshed with a worm (213).

6. The non-destructive testing calibration block of claim 5, wherein: Both sides of the semicircular groove block (211) are provided with arc-shaped holes (214), the bottom of the sliding block (215) is slidably connected with the outer walls of both sides of the semicircular groove block (211), the bottom of the sliding block (215) is fixedly connected with a fixed group (216) slidably connected inside the arc-shaped hole (214), and the middle inner walls of both sides of the semicircular groove block (211) are slidably connected with a sliding block (217) fixed by the fixed group (216).

7. The NDT calibration block of claim 6, wherein: The middle sides of the sliding block (215) are fixedly connected with a clamping block (218) clamping the worm (213), and the surface of the sliding block (215) is fixedly connected with a clamping block (219) clamping the calibration block (3).

8. The nondestructive inspection calibration block of claim 1, wherein: ​

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