CN105486270A - Quality evaluation method for contact scanning measurement result of space curve contour degree - Google Patents
Quality evaluation method for contact scanning measurement result of space curve contour degree Download PDFInfo
- Publication number
- CN105486270A CN105486270A CN201510823473.6A CN201510823473A CN105486270A CN 105486270 A CN105486270 A CN 105486270A CN 201510823473 A CN201510823473 A CN 201510823473A CN 105486270 A CN105486270 A CN 105486270A
- Authority
- CN
- China
- Prior art keywords
- measurement result
- chaining pin
- profile
- contact scanning
- needle point
- 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
Classifications
-
- 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
- G01B21/20—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 contours or curvatures, e.g. determining profile
Abstract
The invention discloses a quality evaluation method for a contact scanning measurement result of the space curve contour degree. A conical-tip probe is used in the quality evaluation method, and is composed of a needle point (1), a probe wrench hole (2) and a connecting threaded pin (3), the needle point (1) is connected with a probe of a three-coordinate measuring machine via the probe wrench hole (2) and the connecting threaded pin (3), and a contact scanning measurement result of the conical-tip probe is used as the standard value to evaluate the quality of the space curve contour degree measuring result of different diameters of probes of routine spherical or cylindrical shape. The evaluation method is simple and easy to realize, data is stable and reliable, the evaluation method satisfies the ratio of uncertainty degree of geometrical parameter detection, and the detection precision for the space free curve contour degree is ensured.
Description
Technical field
The present invention relates to quality evaluating method technical field, specifically provide a kind of contact scanning profile of spatial curves degree measurement result quality evaluating method.
Background technology
Three coordinate measuring engine measurement profile of spatial curves adopts continuous contact scanning mode usually, and the data obtained when scanning curve and curved surface are chaining pin centre coordinate values, therefore must compensate chaining pin radius.Based on same measuring table, affect by space curved surface Curvature varying, the measuring needle radius compensation effect of different structure and different size there are differences, directly cause profile of spatial curves contact scanning measurement result quality uneven, between different measuring software, difference is more obvious, urgently carries out effective evaluation to its measurement result quality.
In order to solve the problem, realize all kinds of part Space Free-Form Surface molded line profile tolerance and measuring accurately and rapidly, people urgently wish to obtain the excellent contact scanning profile of spatial curves degree measurement result quality evaluating method of a kind of technique effect.
Summary of the invention
The object of this invention is to provide the contact scanning profile of spatial curves degree measurement result quality evaluating method that a kind of technique effect is excellent.
Contact scanning profile of spatial curves degree measurement result quality evaluating method adopts the sharp chaining pin of cone, and described cone point chaining pin is constructed as follows: needle point 1, chaining pin driving hole 2 and connecting thread pin 3; Needle point 1 is connected with three coordinate measuring machine gauge head with connecting thread pin 3 by chaining pin driving hole 2; To bore sharp chaining pin contact scanning measurement result for standard value, evaluate different-diameter conventional ball or cylindricality chaining pin profile of spatial curves degree measurement result quality.
Carry out along chaining pin direction of measurement according to three coordinate measuring machine measuring needle radius compensation, when needle point 1 measures direction of motion with when not overlapping for measuring point normal orientation, can produce error, when the two difference θ angle, error cosine error Δ calculates by formula (1):
From above formula, error amount along with needle point 1 radius R value and angle theta value increase and increase, work as R=1mm, being equivalent to needle point 1 diameter is 2mm, and during θ=15 °, Δ value will reach 0.036mm; Work as R=0.75mm, when to be equivalent to needle point 1 diameter be 1.5mm, θ=15 °, Δ value will reach 0.026mm.
Setting space curved profile degree tolerance is 0.12mm, that is: its half value is within 0.06mm, and according to test uncertainty ratio, the ratio of the limits of error namely between measured parameter and its measuring equipment must not lower than the requirement of 4:1, cosine error Δ controls within 0.015mm, order
can be obtained by formula (1), corresponding different θ angle, under guarantee cosine error Δ=0.015mm prerequisite, the radius R of θ and needle point 1 or diameter D corresponding relation are in table 1.
As shown in Table 1, needle point 1 spherical radius of the sharp chaining pin of described cone is no more than 0.04mm, meets contact scanning profile of spatial curves degree measurement result quality assessment request for utilization.
According to measurement curved space curvature, select or customize the sharp chaining pin of cone according to table 1, adopt coordinate measuring machine to be evaluated and system software, complete regulation profile of spatial curves degree scan task, obtain profile tolerance evaluation result, and compare with other different-diameter conventional ball or cylindricality chaining pin measurement result, evaluate contact scanning profile of spatial curves degree measurement result quality.Assess other scheme measurement result degree of reliability
Table 1
| Sequence number | θ angle (°) | k -1 | R(mm) | D(mm) |
| 1 | 5 | 261.8 | 4.00 | 8.0 |
| 2 | 10 | 64.8 | 1.0 | 2.0 |
| 3 | 15 | 28.3 | 0.42 | 0.8 |
| 4 | 20 | 15.6 | 0.23 | 0.5 |
| 5 | 25 | 9.7 | 0.15 | 0.3 |
| 6 | 30 | 6.5 | 0.1 | 0.2 |
| 7 | 35 | 4.5 | 0.07 | 0.15 |
| 8 | 40 | 3.3 | 0.05 | 0.10 |
| 9 | 45 | 2.4 | 0.04 | 0.08 |
Described contact scanning profile of spatial curves degree measurement result quality evaluating method is simple and easy to do, and data stabilization is reliable, and appraisal procedure meets geometric parameter and detects the requirement of uncertainty ratio, ensure that the accuracy of detection of Space Free-Form Surface profile tolerance parameter.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the present invention is further detailed explanation:
Fig. 1 is the sharp chaining pin structural representation of cone;
Fig. 2 is cosine error figure;
Fig. 3 is vane type line scanning schematic diagram.
Embodiment
Embodiment 1
Contact scanning profile of spatial curves degree measurement result quality evaluating method adopts the sharp chaining pin of cone, and described cone point chaining pin is constructed as follows: needle point 1, chaining pin driving hole 2 and connecting thread pin 3; Needle point 1 is connected with three coordinate measuring machine gauge head with connecting thread pin 3 by chaining pin driving hole 2; To bore sharp chaining pin contact scanning measurement result for standard value, evaluate different-diameter conventional ball or cylindricality chaining pin profile of spatial curves degree measurement result quality.
Carry out along chaining pin direction of measurement according to three coordinate measuring machine measuring needle radius compensation, when needle point 1 measures direction of motion with when not overlapping for measuring point normal orientation, can produce error, when the two difference θ angle, error cosine error Δ calculates by formula (1):
From above formula, error amount along with needle point 1 radius R value and angle theta value increase and increase, work as R=1mm, being equivalent to needle point 1 diameter is 2mm, and during θ=15 °, Δ value will reach 0.036mm; Work as R=0.75mm, when to be equivalent to needle point 1 diameter be 1.5mm, θ=15 °, Δ value will reach 0.026mm.
Setting space curved profile degree tolerance is 0.12mm, that is: its half value is within 0.06mm, and according to test uncertainty ratio, the ratio of the limits of error namely between measured parameter and its measuring equipment must not lower than the requirement of 4:1, cosine error Δ controls within 0.015mm, order
can be obtained by formula (1), corresponding different θ angle, under guarantee cosine error Δ=0.015mm prerequisite, the radius R of θ and needle point 1 or diameter D corresponding relation are in table 1.
As shown in Table 1, needle point 1 spherical radius of the sharp chaining pin of described cone is no more than 0.04mm, meets contact scanning profile of spatial curves degree measurement result quality assessment request for utilization.
According to measurement curved space curvature, select or customize the sharp chaining pin of cone according to table 1, adopt coordinate measuring machine to be evaluated and system software, complete regulation profile of spatial curves degree scan task, obtain profile tolerance evaluation result, and compare with other different-diameter conventional ball or cylindricality chaining pin measurement result, evaluate contact scanning profile of spatial curves degree measurement result quality.Assess other scheme measurement result degree of reliability
Table 1
| Sequence number | θ angle (°) | k -1 | R(mm) | D(mm) |
| 1 | 5 | 261.8 | 4.00 | 8.0 |
| 2 | 10 | 64.8 | 1.0 | 2.0 |
| 3 | 15 | 28.3 | 0.42 | 0.8 |
| 4 | 20 | 15.6 | 0.23 | 0.5 |
| 5 | 25 | 9.7 | 0.15 | 0.3 |
| 6 | 30 | 6.5 | 0.1 | 0.2 |
| 7 | 35 | 4.5 | 0.07 | 0.15 |
| 8 | 40 | 3.3 | 0.05 | 0.10 |
| 9 | 45 | 2.4 | 0.04 | 0.08 |
Embodiment 2
Contact scanning profile of spatial curves degree measurement result quality evaluating method adopts the sharp chaining pin of cone, and described cone point chaining pin is constructed as follows: needle point 1, chaining pin driving hole 2 and connecting thread pin 3; Needle point 1 is connected with three coordinate measuring machine gauge head with connecting thread pin 3 by chaining pin driving hole 2; To bore sharp chaining pin contact scanning measurement result for standard value, evaluate different-diameter conventional ball or cylindricality chaining pin profile of spatial curves degree measurement result quality.
Carry out along chaining pin direction of measurement according to three coordinate measuring machine measuring needle radius compensation, when needle point 1 measures direction of motion with when not overlapping for measuring point normal orientation, can produce error, when the two difference θ angle, error cosine error Δ calculates by formula (1):
From above formula, error amount along with needle point 1 radius R value and angle theta value increase and increase, work as R=1mm, being equivalent to needle point 1 diameter is 2mm, and during θ=15 °, Δ value will reach 0.036mm; Work as R=0.75mm, when to be equivalent to needle point 1 diameter be 1.5mm, θ=15 °, Δ value will reach 0.026mm.
Setting space curved profile degree tolerance is 0.12mm, that is: its half value is within 0.06mm, and according to test uncertainty ratio, the ratio of the limits of error namely between measured parameter and its measuring equipment must not lower than the requirement of 4:1, cosine error Δ controls within 0.015mm, order
can be obtained by formula (1), corresponding different θ angle, under guarantee cosine error Δ=0.015mm prerequisite, the radius R of θ and needle point 1 or diameter D corresponding relation are in table 1.
As shown in Table 1, needle point 1 spherical radius of the sharp chaining pin of described cone is no more than 0.04mm, meets contact scanning profile of spatial curves degree measurement result quality assessment request for utilization.
According to measurement curved space curvature, select or customize the sharp chaining pin of cone according to table 1, adopt coordinate measuring machine to be evaluated and system software, complete regulation profile of spatial curves degree scan task, obtain profile tolerance evaluation result, and compare with other different-diameter conventional ball probe measurement result, evaluate contact scanning profile of spatial curves degree measurement result quality.Assess other scheme measurement result degree of reliability.
Table 1
| Sequence number | θ angle (°) | k -1 | R(mm) | D(mm) |
| 1 | 5 | 261.8 | 4.00 | 8.0 |
| 2 | 10 | 64.8 | 1.0 | 2.0 |
| 3 | 15 | 28.3 | 0.42 | 0.8 |
| 4 | 20 | 15.6 | 0.23 | 0.5 |
| 5 | 25 | 9.7 | 0.15 | 0.3 |
| 6 | 30 | 6.5 | 0.1 | 0.2 |
| 7 | 35 | 4.5 | 0.07 | 0.15 |
| 8 | 40 | 3.3 | 0.05 | 0.10 |
| 9 | 45 | 2.4 | 0.04 | 0.08 |
For some blades, adopt two
ball-type chaining pin, apply a certain coordinate measuring machine and carry out the measurement of certain section line profile tolerance, profile tolerance measurement result Lq is in the 3rd row in table 2, and its profile tolerance measurement result needs to carry out comprehensive evaluation.
Evaluation procedure:
1. according to blade profile molded line tolerance, profile of spatial curves degree tolerance diametral at 0.12mm, that is: gets its tightest margin tolerance :-0.06mm ~ 0.06mm, then selects Φ 0.08mm to bore sharp chaining pin by table 1, and its needle point spherical diameter nominal value is no more than 0.08mm.
2. according to measurement of coordinates calibration chaining pin program, chaining pin calibration is passed through, and obtaining actual awl spherical diameter is Φ 0.037mm, Φ 0.061mm, is no more than Φ 0.08mm.
3. adopt two sharp chaining pins of cone 2., this molded line of application Φ 2 ball chaining pin sweep parameter contact scanning, obtains section line profile tolerance measurement result Lz, the results are shown in Table the 4th row in 2.
4. after task of measuring completes, repeat step 2., resume classes to the sharp chaining pin of cone, calibration should be passed through.Sharp abrasion condition is surveyed in the major control of this step.
5. same detected parameters result difference in analytical table 2, calculates Lq – Lz.
Table 2
Described contact scanning profile of spatial curves degree measurement result quality evaluating method adopts the sharp chaining pin of cone, replaces conventional ball or cylindricality chaining pin, bores sharp measuring needle radius compensation control errors within the scope of detected space curved profile degree tolerance certain proportion.
Claims (2)
1. a contact scanning profile of spatial curves degree measurement result quality evaluating method, it is characterized in that: contact scanning profile of spatial curves degree measurement result quality evaluating method adopts the sharp chaining pin of cone, described cone point chaining pin is constructed as follows: needle point (1), chaining pin driving hole (2) and connecting thread pin (3); Needle point (1) is connected with three coordinate measuring machine gauge head with connecting thread pin (3) by chaining pin driving hole (2); To bore sharp chaining pin contact scanning measurement result for standard value, evaluate different-diameter conventional ball or cylindricality chaining pin profile of spatial curves degree measurement result quality.
2. according to contact scanning profile of spatial curves degree measurement result quality evaluating method described in claim 1, it is characterized in that: carry out along chaining pin direction of measurement according to three coordinate measuring machine measuring needle radius compensation, when needle point (1) measures direction of motion with when not overlapping for measuring point normal orientation, error can be produced, when the two difference θ angle, error cosine error Δ calculates by formula (1):
Setting space curved profile degree tolerance is 0.12mm, and according to test uncertainty ratio, the ratio of the limits of error between measured parameter and its measuring equipment must not lower than 4:1 requirement, and cosine error Δ should control within 0.015mm, order
can be obtained by formula (1), corresponding different θ angle, under guarantee cosine error Δ=0.015mm prerequisite, the radius R of θ and needle point (1) or diameter D corresponding relation are in table 1;
Table 1
According to measurement curved space curvature, the sharp chaining pin of cone is selected according to table 1, adopt coordinate measuring machine to be evaluated, complete regulation profile of spatial curves degree scan task, obtain profile tolerance evaluation result, compare with different-diameter conventional ball or cylindricality chaining pin measurement result, evaluate contact scanning profile of spatial curves degree measurement result quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823473.6A CN105486270A (en) | 2015-11-24 | 2015-11-24 | Quality evaluation method for contact scanning measurement result of space curve contour degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510823473.6A CN105486270A (en) | 2015-11-24 | 2015-11-24 | Quality evaluation method for contact scanning measurement result of space curve contour degree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105486270A true CN105486270A (en) | 2016-04-13 |
Family
ID=55673408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510823473.6A Pending CN105486270A (en) | 2015-11-24 | 2015-11-24 | Quality evaluation method for contact scanning measurement result of space curve contour degree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105486270A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748811A (en) * | 2017-09-20 | 2018-03-02 | 华中科技大学 | A kind of outline to be measured algorithm for reconstructing after tip wear |
| CN109341634A (en) * | 2018-11-29 | 2019-02-15 | 株洲中航动力精密铸造有限公司 | Precision cast turbine blades molding surface size measurement method |
| CN109373878A (en) * | 2018-11-30 | 2019-02-22 | 西安工业大学 | A kind of three-dimensional decoupling type scanning feeler |
| CN111060050A (en) * | 2019-12-31 | 2020-04-24 | 广西玉柴机器股份有限公司 | Method for comprehensively verifying detection software of three-coordinate measuring machine |
| CN113074615A (en) * | 2021-03-31 | 2021-07-06 | 金雷科技股份公司 | Measuring device and measuring method for inner cone of large part |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1841008A (en) * | 2005-04-01 | 2006-10-04 | 鸿富锦精密工业（深圳）有限公司 | Verification method for scanning precision of laser measuring machine |
| CN2879115Y (en) * | 2006-01-10 | 2007-03-14 | 翁清铿 | Rotary self-centering rotating shaft type measuring head shelf for three dimensional measuring machine |
| CN101430321A (en) * | 2008-12-12 | 2009-05-13 | 国家纳米技术与工程研究院 | Non-contact biological detection scanning nano-glass probe microscope and its operation method |
| CN101520321A (en) * | 2009-03-30 | 2009-09-02 | 哈尔滨工业大学 | Precision testing device |
-
2015
- 2015-11-24 CN CN201510823473.6A patent/CN105486270A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1841008A (en) * | 2005-04-01 | 2006-10-04 | 鸿富锦精密工业（深圳）有限公司 | Verification method for scanning precision of laser measuring machine |
| CN2879115Y (en) * | 2006-01-10 | 2007-03-14 | 翁清铿 | Rotary self-centering rotating shaft type measuring head shelf for three dimensional measuring machine |
| CN101430321A (en) * | 2008-12-12 | 2009-05-13 | 国家纳米技术与工程研究院 | Non-contact biological detection scanning nano-glass probe microscope and its operation method |
| CN101520321A (en) * | 2009-03-30 | 2009-09-02 | 哈尔滨工业大学 | Precision testing device |
Non-Patent Citations (2)
| Title |
|---|
| 机械工业出版社等: "《量具量仪机械工业标准汇编》", 31 January 2012, 机械工业出版社 * |
| 胥宏: "叶片型面的三坐标测量数据处理及误差分析与补偿", 《工具技术》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107748811A (en) * | 2017-09-20 | 2018-03-02 | 华中科技大学 | A kind of outline to be measured algorithm for reconstructing after tip wear |
| CN107748811B (en) * | 2017-09-20 | 2018-07-03 | 华中科技大学 | A kind of outline to be measured algorithm for reconstructing after tip wear |
| CN109341634A (en) * | 2018-11-29 | 2019-02-15 | 株洲中航动力精密铸造有限公司 | Precision cast turbine blades molding surface size measurement method |
| CN109373878A (en) * | 2018-11-30 | 2019-02-22 | 西安工业大学 | A kind of three-dimensional decoupling type scanning feeler |
| CN109373878B (en) * | 2018-11-30 | 2020-08-04 | 西安工业大学 | Three-dimensional decoupling type scanning gauge head |
| CN111060050A (en) * | 2019-12-31 | 2020-04-24 | 广西玉柴机器股份有限公司 | Method for comprehensively verifying detection software of three-coordinate measuring machine |
| CN111060050B (en) * | 2019-12-31 | 2021-10-15 | 广西玉柴机器股份有限公司 | Method for comprehensively verifying detection software of three-coordinate measuring machine |
| CN113074615A (en) * | 2021-03-31 | 2021-07-06 | 金雷科技股份公司 | Measuring device and measuring method for inner cone of large part |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105486270A (en) | Quality evaluation method for contact scanning measurement result of space curve contour degree | |
| CN107101570B (en) | A kind of right angle calibration block layout method, coordinate scaling method and the coordinate adjustment method of gear measuring center | |
| CN102679941A (en) | Device for detecting taper of outer cone of conical ring | |
| CN202153125U (en) | Detection apparatus for tiny step surface | |
| CN106052576A (en) | screw-thread measuring device and method | |
| CN109211055A (en) | A kind of combination instrument cubing | |
| CN201876225U (en) | Depth dimension detecting rod for inclined hole of cylinder cover of engine | |
| CN207622652U (en) | A kind of measuring device | |
| CN104457640A (en) | Common virtual geometrical characteristic standard component used for calibration of joint-class coordinate measuring machine | |
| CN103206907A (en) | Measuring method of size of position of non-right-angle elbow | |
| CN107202528A (en) | A kind of flareless pipe joint termination dimension measuring device | |
| CN110081792B (en) | Method for measuring puckered mouth at end of steel pipe or radial deviation of outer wall of steel pipe | |
| CN108253912B (en) | Method for checking interrelation of measuring pins of three-coordinate measuring machine | |
| CN100359288C (en) | Angular contact ball bearing outer ring groove position instrument measuring method | |
| CN206160911U (en) | Measurement device for be used for part centre bore degree of depth | |
| CN207035980U (en) | A kind of flareless pipe joint termination dimension measuring device | |
| CN105910525B (en) | The weaving special part roller mandrel cylindricity calibration equipment of logistics | |
| CN102095366A (en) | Method for measuring large-gradient aspheric surface profile | |
| CN109724553A (en) | A method of large-diameter thread measurer is measured indirectly based on three coordinate centering functions | |
| CN101118144B (en) | Steam turbine splitter plate throat width measuring chain pearl | |
| CN109724497B (en) | Method for online detecting radius value of inner sphere | |
| US11118888B2 (en) | Apparatus and methods for measuring thread depth on a threaded member | |
| CN208751460U (en) | A kind of oil level indicator conduit shape cubing | |
| KR102054766B1 (en) | Accurate meter for flush head on aircraft and Evaluation Method for flush head using that | |
| CN206772203U (en) | It is exclusively used in detecting the device of valve retainer roundness of external circle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160413 |