CN105806264A - Method for measuring coaxiality of deep and long inner hole - Google Patents
Method for measuring coaxiality of deep and long inner hole Download PDFInfo
- Publication number
- CN105806264A CN105806264A CN201610314625.4A CN201610314625A CN105806264A CN 105806264 A CN105806264 A CN 105806264A CN 201610314625 A CN201610314625 A CN 201610314625A CN 105806264 A CN105806264 A CN 105806264A
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- China
- Prior art keywords
- profound
- inner hole
- endoporus
- deep
- flexible pipe
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a method for measuring coaxiality of a deep and long inner hole.The method includes the following steps that 1, a component to be measured with the deep and long inner hole is vertically upwards fixed along a plumb line; 2, a hose with the outer diameter matched with the inner diameter of the deep and long inner hole is selected, and a horizontal bubble matched with the inner diameter of the hose is fixed into the end of the hose; 3, the end of the hose with the horizontal bubble is penetrated into the deep and long hole, then an endoscope is utilized to take pictures of the horizontal bubble, and image information of horizontal bubbles at different positions in the deep and long hole is obtained.According to the method, the gravity direction serves as a basis reference to measure the axis of the deep and long inner hole, and a reference is provided for improving inner hole machining quality in the machining process; the method is low in cost, simple, feasible, free of influences of part external size and shape, and the method can be adopted only by arranging a part component in the known direction and at the known position and meanwhile maintaining the inner hole axis proximately perpendicular.
Description
Technical field
The present invention relates to a kind of method measuring profound coaxiality of inner hole, the method for the departure degree being specifically related in profound endoporus diverse location measured hole axis.
Background technology
In machining, there is the demand needing to measure profound endoporus with component facade axiality.Such as, needing drilling deep hole in parts, should there is, with parts external shape, the relation determined in the theoretical axis of deep hole, be assumed to perpendicular without loss of generality, and the theoretical axis of its medium-length hole and part cross section should be mutually perpendicular to.But in actual processing, owing to deep hole machining is subject to the impact of factors, the situation of the actual axis of deep hole and theoretical axis deviation often occurs.
Prior art gives a kind of hyperacoustic measuring method, also lists some other method, but these methods are generally complex, it is necessary to the extremely equipment of specialty, restricted more；Therefore, how to solve the problems referred to above and become the technical barrier faced by those skilled in the art.
Summary of the invention
For problems of the prior art, it is an object of the invention to provide a kind of method measuring profound coaxiality of inner hole, by contrast, this method cost is low, simple and feasible, not by the impact of parts external dimensions and shape, as long as parts being placed in known direction and position, being maintained with interior axially bored line near vertical and can adopt this method.
For achieving the above object, the present invention is by the following technical solutions:
A kind of method measuring profound coaxiality of inner hole, described method comprises the steps:
1) UUT that there is profound endoporus is fixed straight up along plumb line；
2) flexible pipe selecting the internal diameter of external diameter and described profound endoporus to match, fixes a spirit bubble matched with the internal diameter of flexible pipe in the end of described flexible pipe；
3) hose end being provided with described spirit bubble is penetrated in described profound endoporus, then with endoscope, described spirit bubble is taken pictures, it is thus achieved that the image information of the spirit bubble of diverse location in profound endoporus.
Further, the outside mark of described flexible pipe is provided with graduation mark, records flexible pipe and stretch into the positional information of described profound endoporus while described spirit bubble is taken pictures.
Further, step 1) confirms that UUT is in vertical state by observing to be fixedly connected in the horizontal bubble instrument of UUT upper end the position of bubble and be in center.
Further, step 2) described in flexible pipe select polyfluortetraethylene pipe.
Further, computer is used to obtain the axis depicting tested profound endoporus in the position in space according to described image information and positional information.
The method measuring profound coaxiality of inner hole of the application has the advantage that
The application utilizes gravity direction to measure axially bored line in deep hole as basis reference, and then the quality improving interior hole machined during for machining provides reference；And this method cost is low, simple and feasible, not by the impact of parts external dimensions and shape, as long as parts being placed in known direction and position, being maintained with interior axially bored line near vertical and can adopt this method.
Accompanying drawing explanation
Fig. 1 is the schematic diagram measuring profound coaxiality of inner hole of embodiments herein；
Fig. 2 is the image information of the spirit bubble of diverse location in the one group of profound endoporus obtained in embodiments herein.
Detailed description of the invention
Below, with reference to accompanying drawing, the present invention is more fully illustrated, shown in the drawings of the exemplary embodiment of the present invention.But, the present invention can be presented as multiple multi-form, is not construed as the exemplary embodiment being confined to describe here.And it is to provide these embodiments, so that the present invention is fully and completely, and will fully convey the scope of the invention to those of ordinary skill in the art.
The method measuring profound coaxiality of inner hole of the application comprises the steps:
1, the UUT 1 that there is profound endoporus 2 is fixed straight up along plumb line, be in center confirm that UUT 1 is in vertical state by observing the position of bubble in the horizontal bubble instrument 6 being connected on UUT 1.
2, the flexible pipe 3 selecting the internal diameter of external diameter and described profound endoporus 2 to match, fixes a spirit bubble 4 matched with the internal diameter of flexible pipe in the end of described flexible pipe 3；Preferably, flexible pipe 3 selects polyfluortetraethylene pipe, the diameter of bore of its external diameter and profound endoporus 2 matches, can relevantly penetrate in hole, why select polyfluortetraethylene pipe, being because this material and have certain pliability, this pipe can be inserted into inside deep hole all along the direction of profound endoporus 2.It is marked with scale, in order to follow-up know that this politef tube end is at the axial location within profound endoporus 2 outside this polyfluortetraethylene pipe.
3, flexible pipe 3 end being provided with described spirit bubble 4 is penetrated in described profound endoporus 2；Inside polyfluortetraethylene pipe, insert in the process of deep hole at polyfluortetraethylene pipe, with endoscope 5, spirit bubble 4 is taken pictures, record the scale outside polyfluortetraethylene pipe when taking pictures simultaneously.Thus obtain the positional information that a series of spirit bubble image information is axial in deep hole with spirit bubble.The lateral attitude of spirit bubble 4 illustrates the departure degree of this axial positions axially bored line.In spirit bubble image, the position of bubble is just enough to the axis depicting the deep hole the paid close attention to position in space with the axial location at spirit bubble place.In conjunction with computer, by photo by bubble position digital on cross section, it is possible to the almost quantitative axially bored line that obtains in reality is in the distribution situation in space.
Described above simply to illustrate that the present invention, it is understood that to the invention is not limited in above example, meet the various variants of inventive concept all within protection scope of the present invention.
Claims (5)
1. the method measuring profound coaxiality of inner hole, it is characterised in that described method comprises the steps:
1) UUT that there is profound endoporus is fixed straight up along plumb line；
2) flexible pipe selecting the internal diameter of external diameter and described profound endoporus to match, fixes a spirit bubble matched with the internal diameter of flexible pipe in the end of described flexible pipe；
3) hose end being provided with described spirit bubble is penetrated in described profound endoporus, then with endoscope, described spirit bubble is taken pictures, it is thus achieved that the image information of the spirit bubble of diverse location in profound endoporus.
2. the method for the profound coaxiality of inner hole of measurement according to claim 1, it is characterised in that the outside mark of described flexible pipe is provided with graduation mark, records flexible pipe and stretch into the positional information of described profound endoporus while described spirit bubble is taken pictures.
3. the method for the profound coaxiality of inner hole of measurement according to claim 1, it is characterised in that confirm that UUT is in vertical state by observing to be fixedly connected in the horizontal bubble instrument of UUT upper end the position of bubble and be in center in step 1).
4. the method for the profound coaxiality of inner hole of measurement according to claim 1, it is characterised in that step 2) described in flexible pipe select polyfluortetraethylene pipe.
5. the method for the profound coaxiality of inner hole of measurement according to claim 2, it is characterised in that use computer to obtain the axis depicting tested profound endoporus in the position in space according to described image information and positional information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314625.4A CN105806264B (en) | 2016-05-13 | 2016-05-13 | A kind of method for measuring profound coaxiality of inner hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610314625.4A CN105806264B (en) | 2016-05-13 | 2016-05-13 | A kind of method for measuring profound coaxiality of inner hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105806264A true CN105806264A (en) | 2016-07-27 |
| CN105806264B CN105806264B (en) | 2018-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610314625.4A Expired - Fee Related CN105806264B (en) | 2016-05-13 | 2016-05-13 | A kind of method for measuring profound coaxiality of inner hole |
Country Status (1)
| Country | Link |
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| CN (1) | CN105806264B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063091A (en) * | 2017-04-11 | 2017-08-18 | 合肥工业大学 | For big L/D ratio pipe fitting endoporus measuring multiple parameters device and method |
| CN114719777A (en) * | 2022-05-11 | 2022-07-08 | 南京理工大学 | Jet penetration inner hole morphology measuring method |
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| DE19935415A1 (en) * | 1999-07-28 | 2001-02-01 | Wilhelm Heger | Optic measuring instrument for alignment- and distance measurement, having level instrument with compensator for automatic horizontal adjustment of target axis |
| JP2002095625A (en) * | 2000-09-22 | 2002-04-02 | Fuji Photo Film Co Ltd | Endoscope system |
| CN1789906A (en) * | 2004-12-17 | 2006-06-21 | 北京航空航天大学 | Detector for three-dimensional appearance of micro-member through-hole inner surface and its marking and using method |
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| CN101240994A (en) * | 2008-03-19 | 2008-08-13 | 中国航空工业第一集团公司北京航空精密机械研究所 | Checking tool for detecting axial size of internal channel possessing chamfer angle and its detection method |
| CN101813447A (en) * | 2009-12-28 | 2010-08-25 | 中国航空工业集团公司北京航空精密机械研究所 | Embedded-type cavity groove position detector and detection method |
| CN102305606A (en) * | 2011-07-21 | 2012-01-04 | 中信重工机械股份有限公司 | Method for detecting coaxiality of cylindrical surfaces with large diameter |
| CN104364469A (en) * | 2012-04-02 | 2015-02-18 | 拉格股份公司 | Face equipment comprising hose levels placed between the face conveyor and the shield support frames |
| CN105300321A (en) * | 2015-09-29 | 2016-02-03 | 中国科学院国家天文台 | Small-diameter deep hole coaxiality detection method and device |
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2016
- 2016-05-13 CN CN201610314625.4A patent/CN105806264B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19935415A1 (en) * | 1999-07-28 | 2001-02-01 | Wilhelm Heger | Optic measuring instrument for alignment- and distance measurement, having level instrument with compensator for automatic horizontal adjustment of target axis |
| JP2002095625A (en) * | 2000-09-22 | 2002-04-02 | Fuji Photo Film Co Ltd | Endoscope system |
| CN1789906A (en) * | 2004-12-17 | 2006-06-21 | 北京航空航天大学 | Detector for three-dimensional appearance of micro-member through-hole inner surface and its marking and using method |
| CN200989779Y (en) * | 2006-12-29 | 2007-12-12 | 仇建平 | Level meter |
| CN101240994A (en) * | 2008-03-19 | 2008-08-13 | 中国航空工业第一集团公司北京航空精密机械研究所 | Checking tool for detecting axial size of internal channel possessing chamfer angle and its detection method |
| CN101813447A (en) * | 2009-12-28 | 2010-08-25 | 中国航空工业集团公司北京航空精密机械研究所 | Embedded-type cavity groove position detector and detection method |
| CN102305606A (en) * | 2011-07-21 | 2012-01-04 | 中信重工机械股份有限公司 | Method for detecting coaxiality of cylindrical surfaces with large diameter |
| CN104364469A (en) * | 2012-04-02 | 2015-02-18 | 拉格股份公司 | Face equipment comprising hose levels placed between the face conveyor and the shield support frames |
| CN105300321A (en) * | 2015-09-29 | 2016-02-03 | 中国科学院国家天文台 | Small-diameter deep hole coaxiality detection method and device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063091A (en) * | 2017-04-11 | 2017-08-18 | 合肥工业大学 | For big L/D ratio pipe fitting endoporus measuring multiple parameters device and method |
| CN114719777A (en) * | 2022-05-11 | 2022-07-08 | 南京理工大学 | Jet penetration inner hole morphology measuring method |
| CN114719777B (en) * | 2022-05-11 | 2024-05-07 | 南京理工大学 | Jet penetration inner hole morphology measurement method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105806264B (en) | 2018-05-25 |
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Granted publication date: 20180525 |