CN114396905A - Measuring tool for measuring size of fine deep hole ring groove in inner cavity of precision valve shell - Google Patents
Measuring tool for measuring size of fine deep hole ring groove in inner cavity of precision valve shell Download PDFInfo
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- CN114396905A CN114396905A CN202210020245.5A CN202210020245A CN114396905A CN 114396905 A CN114396905 A CN 114396905A CN 202210020245 A CN202210020245 A CN 202210020245A CN 114396905 A CN114396905 A CN 114396905A
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- 238000005259 measurement Methods 0.000 claims abstract description 41
- 239000010979 ruby Substances 0.000 claims abstract description 21
- 229910001750 ruby Inorganic materials 0.000 claims abstract description 21
- 238000005070 sampling Methods 0.000 claims description 46
- 238000000034 method Methods 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000000523 sample Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 3
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- 241001422033 Thestylus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/047—Accessories, e.g. for positioning, for tool-setting, for measuring probes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/042—Calibration or calibration artifacts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention provides a measuring tool for measuring the outer diameter and width dimensions of a ring groove of a fine deep hole in an inner cavity of a precision valve shell part, which consists of a measuring needle rod, a disk-shaped measuring needle head and a ruby measuring ball. The groove bottom size of the sealing ring groove is measured by a disk-shaped measuring head on the outer circle of 2/3, and the width of the sealing ring groove is measured by a ruby measuring ball fixedly connected with the straight edge of the disk-shaped measuring head, so that the measuring effect of a traditional disk-shaped needle and an L-shaped needle can be achieved simultaneously. The invention greatly reduces the time of repeated clamping and adjustment during measurement, can finish the precise size measurement of the fine-deep hole sealing ring groove with the inner and outer diameter difference less than 2.5mm and the width greater than 2mm, and effectively measures the length about 30 mm. After the error is corrected by manual correction, the measurement precision can reach 5 mu m, and the measurement precision requirements of almost all valve shells can be met.
Description
Technical Field
The invention relates to the field of measurement of machined parts, in particular to a measuring tool for measuring the outer diameter and the width dimension of a ring groove of a fine-deep hole in an inner cavity of a precision valve shell.
Background
The valve part is applied to the field of space carrier rockets, the annular groove of the through cavity of the shell is matched and sealed with the valve core, and the success or failure of the launch task of the carrier rocket is directly influenced by the precision of the annular groove.
The measurement of the size of the annular groove in the thin and deep hole is always a difficult problem in the field of machining measurement, because the aperture of the through cavity is narrow and the depth is deep, common measurement means such as a groove measurement comparator cannot be used, and in order to meet measurement requirements and accuracy of more scenes, the axis-diameter ratio and the length-diameter ratio of a standard thin and long disc-shaped measuring needle are small, the measurement accuracy is affected after an extension rod is additionally arranged, and the measurement requirements of space valve parts cannot be met.
The traditional measuring means uses a disc-shaped measuring pin to match with an extension rod to measure the size of a part of ring grooves, and the measuring means can not measure the size of the ring grooves by using a cutting projection mode, and the measuring means have the following problems:
(1) in order to meet the measurement requirements and the measurement precision of more scenes, the standard slender disk-shaped measuring needle has smaller axial-diameter ratio and length-diameter ratio and cannot be suitable for the measurement of most valve parts, and the use of the lengthening rod can influence the measurement precision;
(2) two different measuring pins are used for measuring the outer diameter and the width of the ring groove, and the measuring pins need to be calibrated and clamped again, so that the measuring efficiency is greatly influenced;
(3) the annular groove size is measured by adopting a sectioning projection mode, and the sectioning line cannot ensure centering, so that the projection size measurement error is large, and parts before and after the head and the tail parts and the tool changing need to be sectioned, so that the economic cost loss is very high.
Disclosure of Invention
The invention aims to overcome the defects of the existing measuring means, the size of the annular groove of the fine-deep hole of the valve part is measured by a self-made measuring needle, the measuring precision is met, the measuring time is greatly saved, and the application effect in actual products is good at present.
The above purpose of the invention is realized by the following technical scheme:
a measuring tool for measuring accurate valve housing inner chamber fine-depth hole annular size, its characterized in that: comprises a needle measuring rod 1, a measuring ball 2 and a disk-shaped needle measuring head 3; the lower end of the needle measuring rod 1 is tightly matched with the disc-shaped needle measuring head 3, and the upper end of the needle measuring rod is provided with an adapter which is used for being matched with a measuring sensor of a three-coordinate measuring instrument; the disc-shaped measuring needle head 3 is connected and fastened with the measuring ball 2, the measuring needle head 3 is used for measuring the outer diameter of the ring groove, and the measuring ball 2 is used for measuring the width of the ring groove.
Preferably, the needle measuring rod 1 and the disc-shaped needle measuring head 3 are made of titanium alloy or tungsten steel, and the measuring ball 2 is made of ruby.
Preferably, the disc-shaped measuring needle 3 has a thickness dimension of 1.4mm to 1.8mm, a diameter in the range of 4mm to 8mm, a straight edge in the range of 0.5mm to 1.5mm from the axis of the measuring needle, and an effective measuring circumference of the outer circle for measuring the outer diameter of the ring groove is about 2/3 full circumferences.
Preferably, a spherical groove is processed on the straight edge of the disk-shaped measuring needle head 3 and is used for matching with the ruby measuring ball 2, the depth is 0.5mm-1.5mm, and after the measuring ball is fixedly connected with the ruby measuring ball, the measuring ball is tangent to the outer diameter of the disk-shaped measuring needle head.
Preferably, the length of the probe rod 1 is 25mm-35mm, the effective length of the probe rod after installation can reach 25mm-35mm, the lower end of the probe rod 1 is matched with the disc-shaped probe head 3, and the upper end of the probe rod is connected with the sensor through the adapter.
Preferably, the disc-shaped measuring needle head 3 is used for measuring the outer diameter of the ring groove, a ten-point calibration method is adopted during calibration by using a reference ball, the upper hemispherical surface and the lower hemispherical surface of the disc-shaped measuring needle head are respectively calibrated by using 5 sampling points, two calibration planes formed by the sampling points are symmetrical up and down, and the sampling points are uniformly distributed in the calibration planes along the effective measurement length of the measuring needle head.
Preferably, the ruby measuring ball 2 is used for measuring the width dimension of the ring groove, a ten-point calibration method is adopted when the reference ball is used for calibration, the No. 1 sampling point is located at the top of the measuring ball, the calibration plane formed by the No. 2-5 sampling points is centered, the calibration plane formed by the No. 6-10 sampling points is placed at the limit position where the reference ball and the disk-shaped measuring needle are contacted with each other and do not interfere with each other, and all the sampling points are uniformly distributed along the circumference in the calibration plane.
The invention also provides a measuring method adopting the measuring tool for measuring the size of the deep-hole ring groove in the inner cavity of the precision valve shell, which comprises the following steps:
firstly, connecting a sensor module with a measuring seat of a three-coordinate measuring instrument, connecting a measuring needle with the measuring needle through a sucking disc and a switching block, and inputting module information into an upper computer;
secondly, establishing measurement models of the disc-shaped needle and the L-shaped needle, and selecting a manual calibration mode;
thirdly, the disc-shaped measuring needle head 3 is calibrated by using a reference ball, a ten-point calibration method is adopted during calibration, the upper hemispherical surface and the lower hemispherical surface of the disc-shaped measuring needle head are calibrated by respectively using 5 sampling points, two calibration planes formed by the sampling points are symmetrical up and down, and each sampling point is uniformly distributed along the effective measurement length of the measuring needle head in the calibration plane;
fourthly, calibrating the ruby measuring ball 2 by using a reference ball, wherein a ten-point calibration method is adopted during calibration, the No. 1 sampling point is positioned at the top of the measuring ball, a calibration plane formed by the No. 2-5 sampling points is centered, a calibration plane formed by the No. 6-10 sampling points is placed at the limit position where the reference ball and the disc-shaped measuring needle are contacted with each other and do not interfere with each other, and all the sampling points are uniformly distributed along the circumference in the calibration plane;
fifthly, correcting the measurement errors of the disc-shaped measuring needle head 3 and the ruby measuring ball 2 by using a standard block respectively, and enabling the offset error of the measuring needle to return to zero;
and sixthly, clamping the part, vertically extending the measuring pin into the deep hole of the part, implementing a measuring program, calling a disc-shaped pin measuring program when measuring the outer diameter of the ring groove, and calling an L-shaped pin measuring program when measuring the width of the ring groove.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention utilizes an integrated measuring probe structure, the effective using length of the measuring probe can reach 30mm, the measuring requirement of the size of the annular groove in the fine and deep hole can be met, and the application effect in the actual product is good at present.
(2) The diameter difference between the measuring rod and the disc-shaped measuring needle head is large, the outer diameter measurement of the annular groove of the through cavity with the large diameter difference can be carried out, the installation position of the ruby measuring ball has no interference with the slender through cavity, the precise size measurement of the sealing annular groove of the slender hole with the inner and outer diameter difference smaller than 2.5mm and the width larger than 2mm can be completed, and the measurement precision can reach 5 micrometers.
(3) According to the invention, through the combination of the disc-shaped needle and the L-shaped needle, two measurement programs are called in the part in sequence, so that the outer diameter and the width dimension of the measuring ring groove can be adjusted and regulated once by clamping, and the measuring time is greatly shortened.
(4) The method is simple to use, has good measurement adaptability to the valve part deep-hole ring groove, and has good application effect in actual products.
Drawings
FIG. 1 and FIG. 2 are diagrams illustrating the calibration of the measuring pin during the measurement of the outside diameter of the ring groove according to the present invention;
FIG. 3 is a diagram illustrating a pin calibration method for measuring the width dimension of the ring groove;
FIG. 4 is a cut-away schematic view of a measurement tool of the present invention in actual use;
FIG. 5 is a measurement diagram of a measurement tool of the present invention;
FIG. 6 is a pictorial view of a measuring tool of the present invention;
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
with reference to fig. 1-6, the measuring tool for measuring the size of the annular groove of the fine deep hole in the inner cavity of the precision valve shell comprises a measuring needle rod 1, a measuring ball 2 and a disk-shaped measuring needle head 3; the lower end of the needle measuring rod 1 is tightly matched with the disc-shaped needle measuring head 3, and the upper end of the needle measuring rod is provided with an adapter which is used for being matched with a measuring sensor of a three-coordinate measuring instrument; the disc-shaped measuring needle head 3 is connected and fastened with the measuring ball 2, the measuring needle head 3 is used for measuring the outer diameter of the ring groove, and the measuring ball 2 is used for measuring the width of the ring groove.
According to one embodiment of the invention, the needle bar 1 and the disk-shaped probe head 3 are made of titanium alloy or tungsten steel, and the measuring ball 2 is made of ruby.
According to one embodiment of the invention, the disc-shaped stylus 3 has a thickness dimension of 1.4mm to 1.8mm, a diameter in the range of 4mm to 8mm, a straight edge in the range of 0.5mm to 1.5mm from the axis of the stylus, and an effective measuring circumference of the outer circle for measuring the outer diameter of the ring groove is about 2/3 full circumferences.
According to one embodiment of the invention, the disc-shaped measuring needle head 3 is provided with an SR1 spherical surface on a straight edge for matching with the ruby measuring ball 2, the depth is 0.5mm-1.5mm, and the measuring ball is tangent to the outer diameter of the disc-shaped measuring needle head after being fixedly connected with the ruby measuring ball.
According to one embodiment of the invention, the length of the needle measuring rod 1 is 25mm-35mm, the effective length of the needle measuring rod can reach 25mm-35mm after installation, the lower end of the needle measuring rod 1 is matched with the disc-shaped needle measuring head 3, and the upper end of the needle measuring rod is connected with the sensor through the adapter.
According to one embodiment of the invention, the disc-shaped measuring needle head 3 is used for measuring the outer diameter size of the ring groove, a ten-point calibration method is adopted when a reference ball is used for calibration, No. 1-5 sampling points are located on a calibration plane I and used for collecting the lower half measuring surface of the measuring needle head, No. 6-10 sampling points are located on a calibration plane II and used for collecting the upper half measuring surface of the measuring needle head, two calibration planes formed by the sampling points are symmetrical up and down, and the sampling points are uniformly distributed along the effective measuring length of the measuring needle head in the calibration plane.
According to one embodiment of the invention, the ruby measuring ball 2 is used for measuring the width dimension of the ring groove, a ten-point calibration method is adopted when a reference ball is used for calibration, the No. 1 sampling point is positioned at the ball top at the position where the measuring ball is farthest from the axis of the measuring needle rod, the No. 2-5 sampling points are positioned on the I calibration plane, the calibration plane is centered, the No. 6-10 sampling points are positioned on the II calibration plane, the calibration plane is positioned at the limit position where the reference ball and the disk-shaped measuring needle head are contacted with each other and do not interfere with each other, and all the sampling points are uniformly distributed along the circumference in the calibration plane.
The invention also provides a measuring method adopting the measuring tool for measuring the size of the deep-hole ring groove in the inner cavity of the precision valve shell, which comprises the following steps:
firstly, connecting a sensor module with a measuring seat of a three-coordinate measuring instrument, connecting the measuring needle through a sucking disc and a switching block, and inputting module information into a software interface;
secondly, establishing a measuring program of the disc-shaped needle and the L-shaped needle through a software interface, and selecting a manual calibration mode;
thirdly, using a reference ball to calibrate the disc-shaped probe head, wherein the positions of sampling points are shown in figure 1, the positions of calibration planes are shown in figure 2, a ten-point calibration method is adopted during calibration, No. 1-5 sampling points are located on a calibration plane I and used for collecting the lower half measurement surface of the probe head, No. 6-10 sampling points are located on a calibration plane II and used for collecting the upper half measurement surface of the probe head, two calibration planes formed by the sampling points are vertically symmetrical, and the sampling points are uniformly distributed along the effective measurement length of the probe head in the calibration plane;
fourthly, calibrating the ruby measuring ball by using the reference ball, wherein the positions of sampling points are shown in fig. 3, a ten-point calibration method is adopted during calibration, the No. 1 sampling point is positioned at the ball top at the farthest position of the measuring ball from the axis of the measuring needle rod, the No. 2-5 sampling points are positioned on a calibration plane I, the calibration plane is centered, the No. 6-10 sampling points are positioned on a calibration plane II, the calibration plane is positioned at the limit position where the reference ball and the disc-shaped measuring needle head are contacted with each other and do not interfere with each other, and all the sampling points are uniformly distributed along the circumference in the calibration plane;
fifthly, correcting the measurement errors of the disc-shaped measuring needle head and the ruby measuring ball by using a standard block respectively, and enabling the offset error of the measuring needle to return to zero;
and sixthly, clamping the part, vertically extending the measuring pin into the deep hole of the part, implementing a measuring program, calling a disc-shaped pin measuring program when measuring the outer diameter of the ring groove, and calling an L-shaped pin measuring program when measuring the width of the ring groove.
By using the measuring tool, after the measurement is carried out by the method, the measurement precision of the size of the ring groove of the fine-deep hole in the inner cavity of the precision valve shell is effectively guaranteed, the problems that the size of the ring groove cannot be measured and the measurement precision is low are solved, and the measuring tool has a good application effect in practical products.
The above description is only for the best mode of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Those skilled in the art will appreciate that the invention may be practiced without these specific details.
Claims (8)
1. A measuring tool for measuring accurate valve housing inner chamber fine-depth hole annular size, its characterized in that: comprises a needle measuring rod (1), a measuring ball (2) and a disk-shaped needle measuring head (3); wherein,
the lower end of the needle measuring rod (1) is matched and fastened with the disk-shaped needle measuring head (3), and the upper end of the needle measuring rod is provided with an adapter which is used for being matched with a measuring sensor of a three-coordinate measuring instrument;
the disc-shaped measuring needle head (3) is connected and fastened with the measuring ball (2), the measuring needle head (3) is used for measuring the outer diameter of the ring groove, and the measuring ball (2) is used for measuring the width of the ring groove.
2. A measuring tool for measuring the dimensions of the annular groove of the fine-gauge bore of the internal cavity of the precision valve housing according to claim 1, wherein: the needle measuring rod (1) and the disc-shaped needle measuring head (3) are made of titanium alloy or tungsten steel materials, and the measuring ball (2) is made of ruby.
3. A measuring tool for measuring the dimensions of the annular groove of the fine-gauge bore of the internal cavity of the precision valve housing according to claim 1, wherein: the thickness of the disc-shaped measuring needle head (3) is 1.4mm-1.8mm, the diameter range is 4mm-8mm, the range of the straight edge from the axis of the measuring needle head is 0.5mm-1.5mm, and the outer circle effective measuring circumference for measuring the outer diameter of the ring groove is about 2/3 whole circumferences.
4. A measuring tool for measuring the dimensions of the annular groove of the fine-gauge bore of the internal cavity of the precision valve housing according to claim 1, wherein: the straight edge of the disk-shaped measuring needle head (3) is provided with a spherical groove for matching with the ruby measuring ball (2), the depth is 0.5mm-1.5mm, and the measuring ball is tangent to the outer diameter of the disk-shaped measuring needle head after being fixedly connected with the ruby measuring ball.
5. A measuring tool for measuring the dimensions of the annular groove of the fine-gauge bore of the internal cavity of the precision valve housing according to claim 1, wherein: the length of the needle measuring rod (1) is 25mm-35mm, the effective length of the needle measuring rod after installation can reach 25mm-35mm, the lower end of the needle measuring rod (1) is matched with the disc-shaped needle measuring head (3), and the upper end of the needle measuring rod is connected with the sensor through the adapter.
6. A measuring tool for measuring the dimensions of the annular groove of the fine-gauge bore of the internal cavity of the precision valve housing according to claim 1, wherein: the disc-shaped measuring needle head (3) is used for measuring the outer diameter of the ring groove, a ten-point calibration method is adopted during calibration by using a reference ball, the upper hemispherical surface and the lower hemispherical surface of the disc-shaped measuring needle head are respectively calibrated by using 5 sampling points, two calibration planes formed by the sampling points are symmetrical up and down, and the sampling points are uniformly distributed along the effective measurement length of the measuring needle head in the calibration planes.
7. A measuring tool for measuring the dimensions of the annular groove of the fine-gauge bore of the internal cavity of the precision valve housing according to claim 1, wherein: the ruby measuring ball (2) is used for measuring the width dimension of the ring groove, a ten-point calibration method is adopted when the reference ball is used for calibration, the No. 1 sampling point is positioned at the top of the measuring ball, the calibration plane formed by the No. 2-5 sampling points is centered, the calibration plane formed by the No. 6-10 sampling points is placed at the extreme position where the reference ball and the disk-shaped measuring needle are contacted with each other and do not interfere with each other, and all the sampling points are uniformly distributed along the circumference in the calibration plane.
8. A method of measuring using a measuring tool for measuring the dimensions of the annular groove of a fine bore in the internal cavity of a precision valve housing according to any of claims 1 to 7, comprising the steps of:
firstly, connecting a sensor module with a measuring seat of a three-coordinate measuring instrument, connecting a measuring needle with the measuring needle through a sucking disc and a switching block, and inputting module information into an upper computer;
secondly, establishing measurement models of the disc-shaped needle and the L-shaped needle, and selecting a manual calibration mode;
thirdly, the disc-shaped measuring needle head (3) is calibrated by using the reference ball, a ten-point calibration method is adopted during calibration, the upper hemispherical surface and the lower hemispherical surface of the disc-shaped measuring needle head are respectively calibrated by using 5 sampling points, two calibration planes formed by the sampling points are symmetrical up and down, and the sampling points are uniformly distributed in the calibration planes along the effective measurement length of the measuring needle head;
fourthly, calibrating the ruby measuring ball (2) by using the reference ball, wherein a ten-point calibration method is adopted during calibration, the No. 1 sampling point is positioned at the top of the measuring ball, the calibration plane formed by the No. 2-5 sampling points is centered, the calibration plane formed by the No. 6-10 sampling points is placed at the limit position where the reference ball and the disc-shaped measuring needle head are contacted with each other and do not interfere with each other, and all the sampling points are uniformly distributed along the circumference in the calibration plane;
fifthly, correcting the measurement errors of the disc-shaped measuring needle head (3) and the ruby measuring ball (2) by using a standard block respectively, and enabling the offset error of the measuring needle to return to zero;
and sixthly, clamping the part, vertically extending the measuring pin into the deep hole of the part, implementing a measuring program, calling a disc-shaped pin measuring program when measuring the outer diameter of the ring groove, and calling an L-shaped pin measuring program when measuring the width of the ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210020245.5A CN114396905B (en) | 2022-01-10 | 2022-01-10 | Measuring tool for measuring size of thin deep hole ring groove in inner cavity of precise valve shell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210020245.5A CN114396905B (en) | 2022-01-10 | 2022-01-10 | Measuring tool for measuring size of thin deep hole ring groove in inner cavity of precise valve shell |
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| CN114396905A true CN114396905A (en) | 2022-04-26 |
| CN114396905B CN114396905B (en) | 2024-08-13 |
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|---|---|---|---|---|
| JPH09323318A (en) * | 1996-06-07 | 1997-12-16 | Tokyo Seimitsu Co Ltd | Method and apparatus for measuring groove shape of grooved roller for wire saw |
| CN201931327U (en) * | 2010-12-10 | 2011-08-17 | 哈尔滨先锋机电技术开发有限公司 | Combination type point gauge |
| CN202793359U (en) * | 2012-06-20 | 2013-03-13 | 西安空间无线电技术研究所 | Three-coordinate probe for measuring ring groove diameter |
| CN103528557A (en) * | 2013-09-30 | 2014-01-22 | 北京航天控制仪器研究所 | High-precision sphere diameter measuring instrument |
| CN203940796U (en) * | 2014-06-23 | 2014-11-12 | 淮安市迈奕机电设备有限公司 | Gasket ring groove is measured Special caliper |
| KR20170079254A (en) * | 2015-12-30 | 2017-07-10 | 김종민 | Spherical surface measuring apparatus |
| CN106940175A (en) * | 2017-04-11 | 2017-07-11 | 合肥工业大学 | Sphere ring gauge and gauge head lengthy calibration method for endoporus parameter measuring apparatus gauge head lengthy calibration |
| US20170307348A1 (en) * | 2016-04-20 | 2017-10-26 | Shawn Lause | Standard tool diameter gage |
-
2022
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|---|---|---|---|---|
| JPH09323318A (en) * | 1996-06-07 | 1997-12-16 | Tokyo Seimitsu Co Ltd | Method and apparatus for measuring groove shape of grooved roller for wire saw |
| CN201931327U (en) * | 2010-12-10 | 2011-08-17 | 哈尔滨先锋机电技术开发有限公司 | Combination type point gauge |
| CN202793359U (en) * | 2012-06-20 | 2013-03-13 | 西安空间无线电技术研究所 | Three-coordinate probe for measuring ring groove diameter |
| CN103528557A (en) * | 2013-09-30 | 2014-01-22 | 北京航天控制仪器研究所 | High-precision sphere diameter measuring instrument |
| CN203940796U (en) * | 2014-06-23 | 2014-11-12 | 淮安市迈奕机电设备有限公司 | Gasket ring groove is measured Special caliper |
| KR20170079254A (en) * | 2015-12-30 | 2017-07-10 | 김종민 | Spherical surface measuring apparatus |
| US20170307348A1 (en) * | 2016-04-20 | 2017-10-26 | Shawn Lause | Standard tool diameter gage |
| CN106940175A (en) * | 2017-04-11 | 2017-07-11 | 合肥工业大学 | Sphere ring gauge and gauge head lengthy calibration method for endoporus parameter measuring apparatus gauge head lengthy calibration |
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| CN114396905B (en) | 2024-08-13 |
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