CN114136179A - Blade detection tool and rapid detection method using same - Google Patents
Blade detection tool and rapid detection method using same Download PDFInfo
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- CN114136179A CN114136179A CN202111314884.4A CN202111314884A CN114136179A CN 114136179 A CN114136179 A CN 114136179A CN 202111314884 A CN202111314884 A CN 202111314884A CN 114136179 A CN114136179 A CN 114136179A
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- 238000001514 detection method Methods 0.000 title claims abstract description 131
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000013461 design Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
- G01B5/061—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness height gauges
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A blade detection tool and a rapid detection method using the same belong to the technical field of detection of an integral compressor or a turbine blade. The height detection device comprises a tool main body, wherein the upper end of the tool main body is provided with an installation section, the lower end of the tool main body is provided with a detection structure, the installation section is installed on height detection equipment, and the detection structure comprises a reference section and a detection section; the bottom end of the reference section is provided with a calibration reference surface, the inner side of the reference section is provided with a detection reference surface, and a first pair of central lines are arranged on the detection reference surface; the inner side and the outer side of the detection section are both inclined planes, and a detection sideline is formed between the inclined planes at the inner side and the outer side. According to the height detection device, the height detection device can be quickly zeroed through the set reference section, and the tool placement position during detection can be accurately found; the height of the blade can be detected by the arranged detection section in cooperation with height detection equipment; form line contact or face contact between detection sideline on the detection section and the blade, the detection personnel of being convenient for carry out accurate data reading, reduce artifical reading error.
Description
Technical Field
The invention belongs to the technical field of detection of an integral gas compressor or a turbine blade, and particularly relates to a blade detection tool and a rapid detection method using the same.
Background
The integral type gas compressor and the turbine parts belong to high-difficulty manufacturing parts, the blades are complex in structure and are all special-shaped pieces, and the gas compressor and the turbine blades are greatly challenged to detection by combining the influences of factors such as blade part deformation and surface roughness caused by additive manufacturing. Referring to relevant data and literature, conventional detection schemes are generally classified into two categories: firstly, precision equipment is adopted for detection, the precision equipment is expensive, the technical level of detection personnel is required to be high, and the detection period is long; secondly, through the detection of the combined tool check tool, the manufacturing cost is high, the period is long, and the universality is poor. In addition, both the two conventional detection schemes are only suitable for the detection of the final process of the parts, and the practicability and the economical efficiency of the process detection are poor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a detection tool which is simple in detection structure, convenient to operate, high in detection precision and suitable for detecting the integral compressor or turbine blade and a rapid detection method using the tool.
The invention provides the following technical scheme: the utility model provides a blade detects frock, includes the frock main part, the upper end of frock main part is equipped with the installation section, and its lower extreme is equipped with the detection structure, the installation section is installed on high check out test set, it includes reference segment and detection section to detect the structure.
Preferably, the bottom end of the reference section is provided with a calibration reference surface, the inner side of the calibration reference surface is provided with a detection reference surface, and the detection reference surface is provided with a first pair of central lines.
Preferably, the inner side and the outer side of the detection section are both inclined planes, and a detection sideline is formed between the inclined planes on the inner side and the outer side.
Preferably, a second pair of middle lines corresponding to the first pair of middle lines is arranged on the outer side of the detection section.
Preferably, the detection edge line is located above the calibration reference plane.
Preferably, the distance d1 between the calibration reference surface and the detection edge line is 4-8 mm; the distance d2 between the detection reference surface and the detection sideline is 3-10 mm.
A rapid detection method of a blade detection tool comprises the following steps:
step 1, placing a part with a blade on a detection platform, and installing an installation section on a tool main body on detection equipment;
step 3, moving the height detection equipment, enabling the detection reference surface to be tightly attached to the blade tip of the blade to be detected on the part, aligning the top end of the blade tip to the first pair of central lines, then controlling the height detection equipment, reducing the height of the tool main body until a detection side line on the tool main body is tightly attached to an edge of the blade to be detected, and recording a height value on the height detection equipment;
and 4, repeating the operation in the step 3, recording a plurality of groups of measured values of the same blade, taking the average value of the plurality of groups of measured values as a final measured value, calculating and converting the final measured value into the height value of the blade through a formula, comparing the height value with the design required value of the blade, and judging whether the blade is qualified.
By adopting the technology, compared with the prior art, the invention has the following beneficial effects:
1) in the invention, the height detection equipment can be quickly zeroed through the set reference section, and the tool placement position during detection can be accurately found; the height of the blade can be detected by the arranged detection section in cooperation with height detection equipment; line contact or surface contact is formed between a detection side line on the detection section and the blade, so that detection personnel can conveniently and accurately read data, and manual reading errors are reduced;
2) in the invention, the distances between the calibration reference surface and the detection sideline and between the detection reference surface and the detection sideline are ensured to be in a certain range, and the method can adapt to the blade lengths of different parts to be detected and part spaces with different sizes;
3) the blade detection device has the advantages of simple overall structure, convenience in reference finding, quickness in measurement, high detection efficiency, accuracy in detection and wide application range, and can meet the requirement of blade detection in each step of the additive manufacturing process.
Drawings
FIG. 1 is a schematic front view of the inspection tool of the present invention;
FIG. 2 is a schematic perspective view of the inspection tool of the present invention;
FIG. 3 is a schematic front view of a turbine component according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a turbine component according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a tool for testing a part according to an embodiment of the present invention.
In the figure: 1. a tool main body; 2. an installation section; 3. a reference segment; 301. calibrating a reference surface; 302. detecting a reference surface; 303. a first pair of centerlines; 4. a detection section; 401. detecting a sideline; A. and (4) parts.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
Referring to fig. 1-5, a blade detection tool comprises a tool main body 1, wherein an installation section 2 is arranged at the upper end of the tool main body 1, and the installation section 2 is installed on a height gauge in a threaded manner; the lower end of the tool main body 1 is provided with a detection structure; wherein, frock main part 1, installation section 2 and detection structure adopt 3D to print the shaping, and the shaping is fast not restricted by the structure.
Specifically, the detection structure comprises a reference section 3 and a detection section 4 which are oppositely arranged and are respectively arranged at two sides of the lower end of the tool main body 1.
Specifically, the reference segment 3 is a semi-cylinder, the bottom end surface of which is a calibration reference surface 301, the inner side surface of which is a detection reference surface 302, and a first pair of central lines 303 are arranged on the detection reference surface 302.
Specifically, the inner side and the outer side of the detection section 4 are both inclined surfaces, a side line is formed between the two inclined surfaces, and the side line is a detection side line 401; the outer side of the detection section 4 is provided with a second pair of central lines 402 corresponding to the first pair of central lines 303, which is convenient for the detection personnel to observe during detection.
Specifically, there is a height difference between the detection edge line 401 and the calibration reference plane 301, the vertical distance d1 between the detection edge line 401 and the calibration reference plane 301 is 4mm, and the horizontal distance d2 between the detection edge line 401 and the calibration reference plane 302 is 5 mm.
The method for rapidly detecting the blade by using the tool of the embodiment comprises the following steps:
step 1, horizontally placing a part A with blades on a detection platform, and installing an installation section 2 on a tool main body 1 on a height gauge;
step 3, tightly attaching the detection reference surface 302 to the blade tip of the blade to be detected on the part A, aligning the top end of the blade tip to the first pair of central lines 303, then controlling the height gauge, gradually reducing the height of the tool main body 1 until a detection sideline 401 on the tool main body 1 is tightly attached to the edge of the blade to be detected, and recording the height value on the height gauge;
and 4, repeating the operation in the step 3, recording three groups of measurement values of the same blade, taking the average value of the three groups of measurement values as a final measurement value, converting the value obtained by subtracting the d1 from the final measurement value into a height value of the blade, comparing the height value with the design required value of the blade, and judging whether the blade is qualified.
Other dimensional values of the blade may also be calculated from the detected height values, calculation examples:
as shown in fig. 3 and 4, the theoretical circular boundary of the turbine component is taken as a measurement starting point, and the theoretical height value h is given by decreasing distribution of the diameter of 0.5mm towards the center of the circle in design, as shown in table 1 below:
| -1 (near outer edge direction) | 0 (drawing label) | 1 | 2 | …… | |
| Diameter (mm) | 198.5 | 198 | 197.5 | 197 | …… |
| Height (mm) | 27.19 | 27.23 | 27.29 | 27.35 | …… |
| Height of back side | 5.43 | 5.41 | 5.39 | 5.37 | …… |
TABLE 1
The theoretical height value h is determined according to the tolerance of the part, if the measured height value is larger, the upwarp shrinkage deformation of the blade is indicated, if the integral shrinkage or the unilateral upwarp deformation of the blade needs to be judged, the height of the other side (namely the height of the back side) of the corresponding blade needs to be measured, and the measured data is compared with the theoretical data.
If the measured value is smaller, the blade is subjected to the deformation caused by the downward collapse, if the blade needs to be judged to be subjected to the deformation caused by the overall downward collapse or the single-side downward collapse, the height of the other side (namely the height of the back side) of the corresponding blade needs to be measured, and the measured data is compared with theoretical data.
The above height value is uniquely determined according to the diameter direction of the part (such as a belt substrate, after linear cutting, after machining and the like) determined according to the actual state of the part. The height values in the table above are the machined values.
The tool in the embodiment adopts 3D printing, is fast in forming and not limited by a structure, and can meet the requirement of blade detection in each step of the additive manufacturing process; the rapid detection method in the embodiment is suitable for common detection tools such as height gauges, depth gauges and the like, and is low in price and good in applicability.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. The utility model provides a blade detects frock which characterized in that: the tool comprises a tool main body (1), wherein an installation section (2) is arranged at the upper end of the tool main body (1), a detection structure is arranged at the lower end of the tool main body, the installation section (2) is installed on a height detection device, and the detection structure comprises a reference section (3) and a detection section (4).
2. The blade detection tool according to claim 1, wherein a calibration reference surface (301) is arranged at the bottom end of the reference section (3), a detection reference surface (302) is arranged on the inner side of the calibration reference surface, and a first pair of middle lines (303) is arranged on the detection reference surface (302).
3. The blade detection tool according to claim 2, wherein the inner side and the outer side of the detection section (4) are both inclined surfaces, and a detection edge line (401) is formed between the inclined surfaces of the inner side and the outer side.
4. The blade detection tool according to claim 3, wherein a second pair of middle lines (402) corresponding to the first pair of middle lines (303) are arranged on the outer side of the detection section (4).
5. The blade detection tool according to claim 3 or 4, wherein the detection edge line (401) is located above the calibration reference plane (301).
6. The blade detection tool according to claim 2, wherein the distance d1 between the calibration datum plane (301) and the detection edge line (401) is 4-8 mm; the distance d2 between the detection reference surface (302) and the detection edge line (401) is 3-10 mm.
7. The rapid detection method of the blade detection tool according to any one of claims 1 to 6, characterized by comprising the following steps:
step 1, placing a part (A) with a blade on a detection platform, and installing an installation section (2) on a tool main body (1) on detection equipment;
step 2, adjusting the height detection equipment to enable a calibration reference surface (301) to be in contact with a reference surface of the detection platform, and setting the height detection equipment to be zero;
step 3, moving the height detection equipment, enabling a detection reference surface (302) to be tightly attached to the blade tip of the blade to be detected on the part (A), aligning the top end of the blade tip to a first pair of center lines (303), then controlling the height detection equipment, reducing the height of the tool main body (1) until a detection sideline (401) on the tool main body (1) is tightly attached to the edge of the blade to be detected, and recording a height value on the height detection equipment;
and 4, repeating the operation in the step 3, recording a plurality of groups of measured values of the same blade, taking the average value of the plurality of groups of measured values as a final measured value, calculating and converting the final measured value into the height value of the blade through a formula, comparing the height value with the design required value of the blade, and judging whether the blade is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111314884.4A CN114136179A (en) | 2021-11-08 | 2021-11-08 | Blade detection tool and rapid detection method using same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111314884.4A CN114136179A (en) | 2021-11-08 | 2021-11-08 | Blade detection tool and rapid detection method using same |
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| Publication Number | Publication Date |
|---|---|
| CN114136179A true CN114136179A (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111314884.4A Pending CN114136179A (en) | 2021-11-08 | 2021-11-08 | Blade detection tool and rapid detection method using same |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020092190A1 (en) * | 2001-01-16 | 2002-07-18 | Hofer Douglas Carl | Trailing edge thickness measurement method and apparatus |
| CN204866909U (en) * | 2015-08-24 | 2015-12-16 | 安徽江淮汽车股份有限公司 | Check out test set and non - round hole of stamping workpiece detects round pin thereof |
| CN109883294A (en) * | 2019-04-01 | 2019-06-14 | 中国工程物理研究院材料研究所 | A kind of special measuring tool and method for fast measuring measuring shell part characteristic feature |
| CN209181677U (en) * | 2018-12-17 | 2019-07-30 | 厦门宇龙机械有限公司 | A kind of arc plate detection device |
-
2021
- 2021-11-08 CN CN202111314884.4A patent/CN114136179A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020092190A1 (en) * | 2001-01-16 | 2002-07-18 | Hofer Douglas Carl | Trailing edge thickness measurement method and apparatus |
| CN204866909U (en) * | 2015-08-24 | 2015-12-16 | 安徽江淮汽车股份有限公司 | Check out test set and non - round hole of stamping workpiece detects round pin thereof |
| CN209181677U (en) * | 2018-12-17 | 2019-07-30 | 厦门宇龙机械有限公司 | A kind of arc plate detection device |
| CN109883294A (en) * | 2019-04-01 | 2019-06-14 | 中国工程物理研究院材料研究所 | A kind of special measuring tool and method for fast measuring measuring shell part characteristic feature |
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