CN107421440A - A kind of method of three dimensional optical measuring square hole vertical difference - Google Patents
A kind of method of three dimensional optical measuring square hole vertical difference Download PDFInfo
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- CN107421440A CN107421440A CN201710283862.3A CN201710283862A CN107421440A CN 107421440 A CN107421440 A CN 107421440A CN 201710283862 A CN201710283862 A CN 201710283862A CN 107421440 A CN107421440 A CN 107421440A
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- measurement
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- square hole
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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
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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
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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
A kind of method of three dimensional optical measuring square hole vertical difference, it is related to a kind of method for measuring square hole vertical difference, and in particular to a kind of method of three dimensional optical measuring square hole vertical difference.The problem of present invention is difficult in order to solve broaching tool testpieces vertical difference measurement and positioning, and efficiency is low, and repeatability is difficult to ensure card.The present invention's concretely comprises the following steps the positioning of optical mode workpiece；Optical mode establishes workpiece coordinate system；Optical mode switches with probe patterns：It is switched to probe patterns；System icons are clicked on, click on Change Sensor icons, select Get Stylus, standard configuration is 1mm probes therefore chooses 1mm probes, is attached it on gauge head unit；Now the image of a probe occurs in screen, represents and switches successfully；Measure tetra- planes of A, B, C, D of testpieces；Vertical difference is evaluated：Evaluation model is selected, clicks on vertical difference evaluation icon, selection is evaluated key element, evaluation result is preserved and generates TXT files；Finally the measurement of completion and assessment process are preserved；Optical guidance probe realizes automatic measurement.The invention belongs to mechanical field.
Description
Technical field
The present invention relates to a kind of method for measuring square hole vertical difference, and in particular to a kind of three dimensional optical measuring square hole vertical difference
Method, belong to mechanical field.
Background technology
A kind of circular pie workpiece with square hole, square hole are to be pulled to be formed by subject broaching tool to broaching tool testpieces in this way.
Whether qualified detection broaching tool is the vertical difference for detecting square hole.Vertical difference is to measure four planes A, B, C, D of square hole, one of them
Plane C relative to two neighboring plane A, B vertical difference.The instrument of measurement vertical difference has three coordinate measuring machine, vertical difference at present
Instrumentation etc..Three coordinate measuring machine is generally used for measuring retainer square hole vertical difference, bearing vertical difference instrumentation one
As be also used for measuring retainer pocket hole vertical difference.For the upper square hole vertical difference of broaching tool testpieces, my unit uses OGP
The three-dimensional optical image instrument of company's production, the instrument is a combined type image measurer, i.e. the work(with optical projection measurement
Can, it may have the function of probe contact type measurement.Measurement vertical difference is measured using probe, but is had a problem that, at present
Measurement vertical difference uses manual measurement, low using the method efficiency of manual measurement, higher to workpiece positioning requirements, due to artificial
Dynamometry can not be completely the same with measurement direction when factor causes to measure every time, measurement reproducibility it is difficult to ensure that.Original detection side
Method is：
1st, workpiece positions.Tested broaching tool testpieces is put into glass plate center, tracking cross is chosen, adjusts repeatedly manually
The position of whole workpiece so that the adjacent both sides of square hole of broaching tool testpieces overlap with the tracking cross of center Screen, fixed workpiece.
2nd, plane survey.Choose probe measurement mode.According to the size in hole range estimation need probe gauge head be it is about much,
Choose suitable gauge head.Probe is moved to square hole center manually, clicks on measurement plane option, according to the size of measured hole, really
Fixed each plane measuring point number.,, 8 points of measurements are divided into according to the big I of current gaging hole, each plane is adopted at 4 points at 5 points at 6 points
With the mode of manual measurement point.
3rd, measurement result is evaluated.After having measured tetra- planes of A, B, C, D, one of plane is chosen manually, evaluates its phase
To the vertical difference of two neighboring plane.After evaluation, output report, this time measurement finishes.The time of one-shot measurement about needs
Want 10 minutes or so.
The method speed of above-mentioned measurement examination draw piece square hole vertical difference is slow, and measurement accuracy is relatively low,
The content of the invention
The problem of present invention is difficult to solve broaching tool testpieces vertical difference measurement and positioning, and efficiency is low, and repeatability is difficult to ensure card, and then
It is proposed a kind of method of three dimensional optical measuring square hole vertical difference.
The present invention adopts the technical scheme that to solve the above problems：The present invention's concretely comprises the following steps：
Step 1: optical mode workpiece positions；
Step 2: optical mode establishes workpiece coordinate system；
Step 3: optical mode switches with probe patterns：It is switched to probe patterns；System icons are clicked on, are clicked on
Change Sensor icons, Get Stylus are selected, standard configuration is 1mm probes therefore chooses 1mm probes, attaches it to survey
On head device；Now the image of a probe occurs in screen, represents and switches successfully；
Step 4: tetra- planes of A, B, C, D of measurement testpieces；
Step 5: vertical difference is evaluated：Evaluation model is selected, clicks on vertical difference evaluation icon, selection is evaluated key element, will commented
Valency result preserves and generates TXT files；Finally the measurement of completion and assessment process are preserved；
Step 6: optical guidance probe realizes automatic measurement.
The beneficial effects of the invention are as follows：1st, the present invention, which has surveyed a workpiece, only needs 3 minutes.Time of measuring shortens than before
6 minutes or so, efficiency improved very big.Each measurement reproducibility is preferable, and measurement stability, the degree of accuracy also greatly improve；2nd, from
In the contrast of Tables 1 and 2 it can be seen that relatively low using the measured value dispersion degree of measuring method, measured value is relatively stable, disclosure satisfy that
Actual measurement needs.In addition, the vertical difference method of broaching tool testpieces, the more original measuring method of measurement efficiency are measured in this way
3 times are improved, there is efficiency high, high accuracy for examination, be easy to measure batch this type broaching tool testpieces.
Brief description of the drawings
Fig. 1 is workpiece positioning schematic diagram；
Fig. 2 is to establish workpiece coordinate system schematic diagram；
Fig. 3 is measurement workpiece planarization schematic diagram.
Embodiment
Embodiment one：Illustrate present embodiment, a kind of three-dimensional optical described in present embodiment with reference to Fig. 1 to Fig. 3
The method of measurement square hole vertical difference is achieved by the steps of：
Step 1: optical mode workpiece positions；
Step 2: optical mode establishes workpiece coordinate system；
Step 3: optical mode switches with probe patterns：It is switched to probe patterns；System icons are clicked on, are clicked on
Change Sensor icons, Get Stylus are selected, standard configuration is 1mm probes therefore chooses 1mm probes, attaches it to survey
On head device；Now the image of a probe occurs in screen, represents and switches successfully；
Step 4: tetra- planes of A, B, C, D of measurement testpieces；
Step 5: vertical difference is evaluated：Evaluation model is selected, clicks on vertical difference evaluation icon, selection is evaluated key element, will commented
Valency result preserves and generates TXT files；Finally the measurement of completion and assessment process are preserved；
Step 6: optical guidance probe realizes automatic measurement.
Software is used in present embodiment：The MeasureMind 3D Multisensor softwares of OGP companies.
Embodiment two：Illustrate present embodiment, a kind of three-dimensional optical described in present embodiment with reference to Fig. 1 to Fig. 3
The step of method of measurement square hole vertical difference, a kind of detailed process of optical mode workpiece positioning was：By workpiece putting position and admittedly
Set, select Protractor target icons, the cursor of red chiastron angle, angle in figure occurs in center Screen
Can arbitrarily it change；According to workpiece putting position, adjust the position of icon so that center on the intersection point on the adjacent both sides of workpiece,
Two sides of icon are overlapped with workpiece both sides, and as shown in position 1, coordinate X, Y, Z are reset；Along X-direction mobile platform so that light
Mark is overlapped with another angle, and as above-mentioned adjustment mode, after adjusting as shown in position 2, Y-axis is reset；Now workpiece has positioned
Finish.
Embodiment three：Illustrate present embodiment, a kind of three-dimensional optical described in present embodiment with reference to Fig. 1 to Fig. 3
Optical mode establishes the detailed process of workpiece coordinate system and is in the step of measuring the method for square hole vertical difference two：In measurement pattern,
The function of measurement point is chosen, in square hole approximately the same plane, wherein any while two point a and point b are chosen, in adjacent one side choosing
Take a point c；Structural model is selected, a, b, c 3 points of constructions, one plane of measurement is chosen, chooses the point a in adjacent 2 points
As the origin of coordinate system, connect a points and b points construct straight line as X-axis；Y-axis perpendicular to construction plane, according to the right hand
The position of screw rule Z axis also determines that.
Embodiment four：Illustrate present embodiment, a kind of three-dimensional optical described in present embodiment with reference to Fig. 1 to Fig. 3
The detailed process of tetra- planes of A, B, C, D of measurement testpieces is in the step of measuring the method for square hole vertical difference four：By probe
It is moved to above tested square hole, is defined as home and point of safes is set.Measurement plane pattern is chosen, A planes are measured, according to hole
Size determine measurement points, 5 points of general measure；Wherein 4 points are evenly distributed in whole plane as far as possible, finally entreat in the planes
Measure at 1 point；Plane A measurements set point of safes after terminating；Then measurement plane B, plane C peace in the way of A planes are measured
Face D, after four planes all measure, a segment distance sets point of safes above examination draw piece, and measurement terminates.
Embodiment five：Illustrate present embodiment, a kind of three-dimensional optical described in present embodiment with reference to Fig. 1 to Fig. 3
Optical guidance probe realizes that the detailed process of automatic measurement is in the step of measuring the method for square hole vertical difference six：Change a new work
Part, newly-built measurement task, choose Protractor target icons, optical mode positioning workpiece；After positioning, call
The program of preservation, Step edit functions are selected, automatic to perform since the first step, optics establishes workpiece coordinate system, and conversion is visited
Needle mould formula, the location of workpiece is automatically found according to optical guidance, starts measurement plane, after measurement, automatic Evaluation vertical difference is simultaneously
Result is exported into TXT texts.
Embodiment
The vertical difference measurements of broaching tool testpieces, original method repeated measurement data is as shown in table 1, new method repeated measurement data
As shown in table 2, unit mm
The former method measurement data of table 1
The new method measurement data of table 2
It can be drawn from above-mentioned several tables, relatively low using the measured value dispersion degree of measuring method, measured value is relatively stable, can
Meet actual measurement needs.In addition, the vertical difference method of broaching tool testpieces, the more original measurement of measurement efficiency are measured in this way
Method improves 3 times, has efficiency high, high accuracy for examination, is easy to measure batch this type broaching tool testpieces.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as be without departing from technical solution of the present invention content, according to the technical spirit of the present invention,
Within the spirit and principles in the present invention, any simple modification, equivalent substitution and improvement for being made to above example etc., still
Belong within the protection domain of technical solution of the present invention.
Claims (5)
- A kind of 1. method of three dimensional optical measuring square hole vertical difference, it is characterised in that：A kind of three dimensional optical measuring square hole hangs down Straight poor method is achieved by the steps of：Step 1: optical mode workpiece positions；Step 2: optical mode establishes workpiece coordinate system；Step 3: optical mode switches with probe patterns：It is switched to probe patterns；System icons are clicked on, click on Change Sensor icons, Get Stylus are selected, standard configuration is 1mm probes therefore chooses 1mm probes, attaches it to gauge head unit On；Now the image of a probe occurs in screen, represents and switches successfully；Step 4: tetra- planes of A, B, C, D of measurement testpieces；Step 5: vertical difference is evaluated：Evaluation model is selected, clicks on vertical difference evaluation icon, selection is evaluated key element, evaluation is tied Fruit preserves and generates TXT files；Finally the measurement of completion and assessment process are preserved；Step 6: optical guidance probe realizes automatic measurement.
- A kind of 2. method of three dimensional optical measuring square hole vertical difference according to claim 1, it is characterised in that：A kind of light of step Pattern workpiece positioning detailed process be：By workpiece putting position and fix, select Protractor target icons, The cursor of red chiastron angle in figure occurs in center Screen, and angle can arbitrarily change；According to workpiece putting position, adjust The position of whole icon so that center is on the intersection point on the adjacent both sides of workpiece, and two sides of icon overlap with workpiece both sides, such as position 1 It is shown, coordinate X, Y, Z are reset；Along X-direction mobile platform so that cursor overlaps with another angle, with above-mentioned adjustment mode one Sample, after adjusting as shown in position 2, Y-axis is reset；Now workpiece positioning finishes.
- A kind of 3. method of three dimensional optical measuring square hole vertical difference according to claim 1, it is characterised in that：Light in step 2 Learn Model Establishment workpiece coordinate system detailed process be：In measurement pattern, the function of measurement point is chosen, in square hole approximately the same plane It is interior, wherein any while two point a and point b are chosen, in one point c of adjacent one side selection；Structural model is selected, chooses measurement A, 3 points of constructions of b, c, one plane, chooses origins of the point a in adjacent 2 points as coordinate system, connects a points and b points construction Straight line is as X-axis；Y-axis also determines that perpendicular to the plane of construction according to the position of right-hand screw rule Z axis.
- A kind of 4. method of three dimensional optical measuring square hole vertical difference according to claim 1, it is characterised in that：Surveyed in step 4 The detailed process of tetra- planes of A, B, C, D for measuring testpieces is：Probe is moved to above tested square hole, is defined as home Point of safes is set.Measurement plane pattern is chosen, measures A planes, measurement points, 5 points of general measure are determined according to the size in hole；Its In 4 points as far as possible be evenly distributed in whole plane, finally in the planes centre measurement 1 point；Plane A measurements set safety after terminating Point；Then measurement plane B, plane C and plane D in the way of A planes are measured, after four planes all measure, drawn in examination A segment distance sets point of safes above part, and measurement terminates.
- A kind of 5. method of three dimensional optical measuring square hole vertical difference according to claim 1, it is characterised in that：Light in step 6 Learn guiding probe and realize that the detailed process of automatic measurement is：A new workpiece is changed, newly-built measurement task, chooses Protractor Target icons, optical mode positioning workpiece；After positioning, the program preserved is called, selects Step edit functions, from The first step starts, automatic to perform, and optics establishes workpiece coordinate system, transition probe pattern, workpiece is automatically found according to optical guidance Position, start measurement plane, after measurement, automatic Evaluation vertical difference and result is exported into TXT texts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710283862.3A CN107421440A (en) | 2017-04-26 | 2017-04-26 | A kind of method of three dimensional optical measuring square hole vertical difference |
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| CN201710283862.3A CN107421440A (en) | 2017-04-26 | 2017-04-26 | A kind of method of three dimensional optical measuring square hole vertical difference |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986863A (en) * | 2019-12-28 | 2020-04-10 | 中国航发哈尔滨轴承有限公司 | Method for detecting perpendicularity out-of-tolerance of square hole retainer of bearing |
| CN111692995A (en) * | 2020-06-12 | 2020-09-22 | 中国航发哈尔滨轴承有限公司 | Vertical differential speed measuring method for coordinate system of trial drawing piece |
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| CN201728631U (en) * | 2010-07-20 | 2011-02-02 | 福建捷联电子有限公司 | Universal moving automatic pressing sleeve device |
| CN102168945A (en) * | 2010-02-26 | 2011-08-31 | 鸿富锦精密工业（深圳）有限公司 | System and method for image measurement |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05141958A (en) * | 1991-11-21 | 1993-06-08 | Dainippon Printing Co Ltd | Measuring device for cylindrical container |
| CN1950670A (en) * | 2004-05-06 | 2007-04-18 | 卡尔·马尔控股有限公司 | Measuring device provided with a probe-tip |
| CN102168945A (en) * | 2010-02-26 | 2011-08-31 | 鸿富锦精密工业（深圳）有限公司 | System and method for image measurement |
| CN101839693A (en) * | 2010-04-12 | 2010-09-22 | 东莞市嘉腾仪器仪表有限公司 | Automatic image measuring system |
| CN201728631U (en) * | 2010-07-20 | 2011-02-02 | 福建捷联电子有限公司 | Universal moving automatic pressing sleeve device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986863A (en) * | 2019-12-28 | 2020-04-10 | 中国航发哈尔滨轴承有限公司 | Method for detecting perpendicularity out-of-tolerance of square hole retainer of bearing |
| CN111692995A (en) * | 2020-06-12 | 2020-09-22 | 中国航发哈尔滨轴承有限公司 | Vertical differential speed measuring method for coordinate system of trial drawing piece |
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Application publication date: 20171201 |