CN102589503A - Short arc-based three-coordinate detection method - Google Patents
Short arc-based three-coordinate detection method Download PDFInfo
- Publication number
- CN102589503A CN102589503A CN2011100202033A CN201110020203A CN102589503A CN 102589503 A CN102589503 A CN 102589503A CN 2011100202033 A CN2011100202033 A CN 2011100202033A CN 201110020203 A CN201110020203 A CN 201110020203A CN 102589503 A CN102589503 A CN 102589503A
- Authority
- CN
- China
- Prior art keywords
- circular arc
- detection method
- little
- short
- dimensional detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention relates to a short arc-based three-coordinate detection method. The method is characterized by comprising the following steps of: first, positioning and clamping a component to be detected, so that the reference axial line of the component is parallel to a Z-axis; then, performing discrete point sampling on the part to be measured; and finally, estimating the radius of a short arc in a polar coordinate mode by adopting personal computer-data management information system (PC-DMIS) software. Therefore, relative data of the short arc R can be obtained precisely and the actual size of a workpiece is approached indefinitely. A powerful evidence for accurately judging whether the workpiece is qualified is provided; and simultaneously, a measurement system error caused by using a non-three-coordinate detection (such as R-standard sample plate detection) is reduced.
Description
Technical field
The present invention relates to a kind of three-dimensional detection method, relate in particular to a kind of three-dimensional detection method based on short and small circular arc.
Background technology
The detection of the short and small circular arc of the Cam Disc class part that aviation industry portion is processed adopts three-dimensional to detect; Because the arc section length of this piece surface is shorter, the tolerance precision is high, and arc surface and straight line are directly tangent; If the R rule model with traditional detects; The profile of R rule receives the interference of tangent straight line, can't detect the concrete numerical value of little circular arc with the gap method, and it is very big directly to adopt the point measurement error at piece surface.Little arc measuring is a technical barrier in the three-dimensional coordinates measurement machine testing.The accuracy as a result of little arc measuring is directly connected to the qualification determination of product; Circular arc get over the short message amount gather will be seldom; Data measured relatively just can not be consistent; Although this method can't fundamentally solve the accurate problems of measurement of little circular arc, use this measuring method can improve the accuracy of measurement to a great extent, make its actual measured value unlimited near true value processing.
Summary of the invention
The object of the invention is exactly the problems referred to above that exist in the prior art in order to solve, and a kind of three-dimensional detection method based on short and small circular arc is provided.
The object of the invention is realized through following technical scheme:
Based on the three-dimensional detection method of short and small circular arc, it may further comprise the steps: 1. step positions clamping to part to be detected, makes the datum axis of part be parallel to the Z axle; 2. step disperses to detected part and to adopt a little; 3. step adopts PC DMIS software, assesses the radius of little circular arc with polar coordinate mode.
Above-mentioned three-dimensional detection method based on short and small circular arc, wherein: described discrete adopting a little to detected part is carried out the division of at least three levels in upper, middle and lower, each level is gathered 10 points that are evenly distributed at least.
Further, above-mentioned three-dimensional detection method based on short and small circular arc, wherein: described each level is gathered 10 points that are evenly distributed at least, its every layer length of getting a little is consistent.
Further, above-mentioned three-dimensional detection method based on short and small circular arc, wherein: the start angle of three the little circular arcs of level in described upper, middle and lower and termination point need consistent, and arc length is consistent.
Again further, above-mentioned three-dimensional detection method based on short and small circular arc, wherein: described being evaluated as, the mean value of the radius of three the little circular arcs of level in upper, middle and lower are the true measurement radius of circular arc R.
The advantage of technical scheme of the present invention is mainly reflected in: can comparatively accurately obtain the related data of short and small circular arc R, and also unlimited near the physical size of workpiece.For accurately judging that workpiece is whether qualified strong foundation is provided, also reduced simultaneously because of using non-three-dimensional mode to detect the measuring system error that (like the detection of R rule model) brings.
Description of drawings
The object of the invention, advantage and characteristics will illustrate through the non-limitative illustration of following preferred embodiment and explain.These embodiment only are the prominent examples of using technical scheme of the present invention, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the scope of requirement protection of the present invention.In the middle of these accompanying drawings,
Fig. 1 carries out the synoptic diagram that at least three levels in upper, middle and lower are divided with detected part.(dotted line is a dividing line)
Embodiment
Three-dimensional detection method based on short and small circular arc is characterized in that may further comprise the steps: at first, part to be detected is positioned clamping, make the datum axis of part be parallel to the Z axle.Specifically; Do like this is because adopt contact type measurement; The distortion of the static measurement power that the tested part surface is applied for fear of the side head; The accuracy that influence is measured must guarantee the Continuous Contact of gauge head and part to be detected, could guarantee like this reality sampled point and theory diameter depart from minimizing.
Afterwards, detected part is dispersed adopt a little.Specifically, as shown in Figure 1, the present invention adopts discrete adopting a little to detected part is carried out the division of at least three levels in upper, middle and lower gathered 10 points that are evenly distributed at least to each level.And, consistent for its every layer length of getting a little, play preferable collection effect with this.And in order further to promote the progress of gathering, the present invention need keep the start angle of three the little circular arcs of level in upper, middle and lower and termination point to need unanimity as far as possible, and arc length is consistent.
At last, adopt PC DMIS software, assess the radius of little circular arc with polar coordinate mode.For the ease of operating personnel's use, the radius of assessing little circular arc with polar coordinate mode is the true measurement radius that the mean value of the radius of three the little circular arcs of level in upper, middle and lower is circular arc R.Like this, can also obtain the actual coordinate value at circular arc R center simultaneously.
In conjunction with actual operating position of the present invention, similar short and small circular arc detection method all can adopt above mode of operation to obtain.
Can find out through above-mentioned character express, behind employing the present invention, can comparatively accurately obtain the related data of short and small circular arc R, also unlimited near the physical size of workpiece.For accurately judging that workpiece is whether qualified strong foundation is provided, also reduced simultaneously because of using non-three-dimensional mode to detect the measuring system error that (like the detection of R rule model) brings.
Claims (5)
1. based on the three-dimensional detection method of short and small circular arc, it is characterized in that may further comprise the steps:
1. step positions clamping to part to be detected, makes the datum axis of part be parallel to the Z axle;
2. step disperses to detected part and to adopt a little;
3. step adopts PC DMIS software, assesses the radius of little circular arc with polar coordinate mode.
2. the three-dimensional detection method based on short and small circular arc according to claim 1 is characterized in that: described discrete adopting a little to detected part is carried out the division of at least three levels in upper, middle and lower, each level is gathered 10 points that are evenly distributed at least.
3. the three-dimensional detection method based on short and small circular arc according to claim 2 is characterized in that: described each level is gathered 10 points that are evenly distributed at least, its every layer length of getting a little is consistent.
4. the three-dimensional detection method based on short and small circular arc according to claim 2 is characterized in that: the start angle of three the little circular arcs of level in described upper, middle and lower and termination point need consistent, and arc length is consistent.
5. the three-dimensional detection method based on short and small circular arc according to claim 1 is characterized in that: described being evaluated as, the mean value of the radius of three the little circular arcs of level in upper, middle and lower are the true measurement radius of circular arc R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100202033A CN102589503A (en) | 2011-01-18 | 2011-01-18 | Short arc-based three-coordinate detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100202033A CN102589503A (en) | 2011-01-18 | 2011-01-18 | Short arc-based three-coordinate detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102589503A true CN102589503A (en) | 2012-07-18 |
Family
ID=46478495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100202033A Pending CN102589503A (en) | 2011-01-18 | 2011-01-18 | Short arc-based three-coordinate detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102589503A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332640A (en) * | 2017-12-08 | 2018-07-27 | 西安飞机工业（集团）有限责任公司 | A kind of aircraft door arc surface error detection method |
| CN110986849A (en) * | 2019-12-27 | 2020-04-10 | 大连瑞谷科技有限公司 | High-precision roller large sphere base surface measuring method |
| CN114136251A (en) * | 2021-11-24 | 2022-03-04 | 中国航发贵州黎阳航空动力有限公司 | Method for detecting special size of cylindrical surface part with large radius and small proportion |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06273153A (en) * | 1993-03-22 | 1994-09-30 | Tokyo Seimitsu Co Ltd | Measurement range control method and miscount detection method of coordinate measurement device |
| JPH11230735A (en) * | 1998-02-12 | 1999-08-27 | Nikon Corp | Data processing method for coordinate measuring device |
| CN1666085A (en) * | 2002-07-04 | 2005-09-07 | 瑞尼斯豪公司 | Method of calibrating a scannig system |
-
2011
- 2011-01-18 CN CN2011100202033A patent/CN102589503A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06273153A (en) * | 1993-03-22 | 1994-09-30 | Tokyo Seimitsu Co Ltd | Measurement range control method and miscount detection method of coordinate measurement device |
| JPH11230735A (en) * | 1998-02-12 | 1999-08-27 | Nikon Corp | Data processing method for coordinate measuring device |
| CN1666085A (en) * | 2002-07-04 | 2005-09-07 | 瑞尼斯豪公司 | Method of calibrating a scannig system |
Non-Patent Citations (2)
| Title |
|---|
| 吴旻: "短圆弧大半径尺寸的测量技术初探", 《航空标准化与质量》 * |
| 王文书: "三坐标测量机对大半径短圆弧的测量实践", 《上海计量测试》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332640A (en) * | 2017-12-08 | 2018-07-27 | 西安飞机工业（集团）有限责任公司 | A kind of aircraft door arc surface error detection method |
| CN110986849A (en) * | 2019-12-27 | 2020-04-10 | 大连瑞谷科技有限公司 | High-precision roller large sphere base surface measuring method |
| CN114136251A (en) * | 2021-11-24 | 2022-03-04 | 中国航发贵州黎阳航空动力有限公司 | Method for detecting special size of cylindrical surface part with large radius and small proportion |
| CN114136251B (en) * | 2021-11-24 | 2024-05-10 | 中国航发贵州黎阳航空动力有限公司 | Method for detecting special size of cylindrical surface part with large radius and small duty ratio |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109032069B (en) | Non-contact R-test measuring instrument sphere center coordinate calculation method adopting eddy current displacement sensor | |
| CN102494641B (en) | Hole axis detection tool and detection method thereof | |
| CN104422406A (en) | Planeness measurement system and method | |
| CN102322776B (en) | Single-toe elastic strip fast detecting tool and detecting method | |
| US10166644B2 (en) | Processing inspection workpiece for machine tool, and on-machine measurement method using said workpiece | |
| CN204346328U (en) | A kind of cubing of detection axis class part length | |
| CN103363923A (en) | Non-contact type gear tooth direction measuring method of laser vision distance measurement | |
| CN103557760A (en) | Method for detecting space small-diameter inclined hole position degree on thin-wall curved surface | |
| CN102072701A (en) | Method for detecting size of part and device | |
| CN108168499A (en) | A kind of measuring for the coaxiality error method and measuring system | |
| CN202153125U (en) | Detection apparatus for tiny step surface | |
| CN102778193B (en) | A kind of testing tool with work centre line automatic centering function | |
| CN103575182A (en) | Section location degree detecting device and section location degree detecting method | |
| CN102589503A (en) | Short arc-based three-coordinate detection method | |
| CN103292773A (en) | Symmetry error evaluation method based on minimum zone | |
| CN104535029A (en) | Three-dimensional detection mechanism for repeated positioning | |
| CN105115455A (en) | Alignment method for measurement data of different measuring heads of three-axis coordinate measurement equipment | |
| CN105466381A (en) | Concave arc radius detection and arc degree determination apparatus and method | |
| CN203636509U (en) | Three-dimensional cutting force measuring device | |
| CN108332642B (en) | Right-angle head precision detection method | |
| CN104567748B (en) | The measuring method of small gaps straightness and flatness | |
| CN107063330B (en) | Porous plate standard and joint error detection method for multi-sensor measurement system | |
| CN105157583A (en) | Axle journal length measurement system | |
| CN204757949U (en) | Measurement device for main shaft developments gyration error is equipped in complete set gyration | |
| CN203811140U (en) | Polar coordinates tire profile measurer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |