CN106705821A - Rotary axis system orthogonality measuring method and device - Google Patents
Rotary axis system orthogonality measuring method and device Download PDFInfo
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- CN106705821A CN106705821A CN201510462936.0A CN201510462936A CN106705821A CN 106705821 A CN106705821 A CN 106705821A CN 201510462936 A CN201510462936 A CN 201510462936A CN 106705821 A CN106705821 A CN 106705821A
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Abstract
The invention belongs to the technical field of precise measurement and particularly relates to a rotary axis system orthogonality measuring method and device. The device comprises a measuring platform, a rotary mechanism base, a U-shaped frame, an I standard ball, a pitching rotary shaft, an II standard ball, a high precision dial gauge, a dial gauge bracket, and a dial gauge base. The standard balls are steel balls with the diameter of 25mm and the roundness of 0.1 micrometer. The high precision dial gauge is a high precision inductance sensor with the measurement accuracy of 0.1 micrometer. By using the above standards, the orthometric axis system of a pitch axis span of 200mm is measured, and the orthometric measurement precision of two orthometric axis systems can reach 0.2'' through theoretical calculation.
Description
Technical field
The invention belongs to Technology of Precision Measurement field, and in particular to a kind of rotary axis system orthogonality measuring method and
Device.
Background technology
In fields such as accurate inertia test equipment, precision instruments, multi-shaft precise rotary axis system is often used, be
The accuracy of measurement of the equipment of raising and instrument, it is necessary to the accurate orthogonality between measurement shafting, as according to
It is adjusted or compensates according to measuring apparatus mechanical structure.
At present, there are the detection method and means of maturation for the rotating accuracy of single shafting, for multiple shaftings
For orthogonality, also there is corresponding acceptance test method, i.e., using auto-collimation principle by two or more revolutions
The axis of shafting is drawn, and calculates the orthogonality that the angle of axis can be drawn between shafting.Due to the above method
Measurement efficiency is relatively low, and can not provide real-time measuring data for real-time adjustment, with certain limitation.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of rotary axis system orthogonality measuring method and device, carries
Multiaxis high turns round detection, the regulated efficiency of class mechanical structure shafting orthogonality.
In order to solve the above technical problems, a kind of rotary axis system orthogonality measurement apparatus of the invention, the device includes
Measuring table, slew gear base, orientation gyroaxis, U-shaped frame, I standard balls, pitching gyroaxis, II marks
Quasi- ball, high accuracy dial gauge, dial gauge support, dial gauge base, it is flat that slew gear base is fixed on measurement
Platform；The rotation of orientation gyroaxis two ends is fixed on slew gear base and is connected with U-shaped frame；Pitching gyroaxis two ends
Rotation is fixed on U-shaped frame U-shaped inside and passes U-shaped frame；I standard balls and II standard balls and pitching gyroaxis
Two ends are connected；Dial gauge base is fixed on measuring table；It is relative that dial gauge support is fixed on dial gauge base
In measuring table opposite side；High accuracy dial gauge is fixed on dial gauge support.
Described I standard balls and II standard balls are connected by two-dimensional adjusting mechanism with pitching gyroaxis two ends.
A kind of rotary axis system orthogonality measuring method, specifically includes following steps：
The adjustment of step one, standard ball and pitch axis, I standard ball surfaces are contacted by high accuracy dial gauge, are returned
Turn pitching gyroaxis, by observing high accuracy dial gauge data variation, if high accuracy dial gauge is returned in pitching
Reading changes in rotating shaft turning course, and the standard ball position is adjusted by two-dimensional adjusting mechanism, makes to refer in high precision
Show that table reading in pitching gyroaxis turning course is constant, now the standard ball centre of sphere and pitching gyroaxis axis
Adjustment is finished, gyrobearing gyroaxis, by II standard balls contact high accuracy dial gauge, adjustment II standard balls and
Pitching gyroaxis axial location；
Step 2, the determination of orthogonality measuring basis, mobile accuracy dial gauge, in I standard balls bottom surface or top surface position
Put and nearby find precision dial gauge reentry point, that is, find I standard balls extreme lower position or extreme higher position, fixed precision
Dial gauge, and dial gauge reading a1 is write down, now measuring basis determines to finish；
Step 3, axis vertical take-off measurement, 180 ° are rotated by orientation gyroaxis, make II standard balls and I standards
Ball position is exchanged, mobile accuracy dial gauge, finds the reentry point of II standard balls, that is, find II standard balls minimum
Position or extreme higher position, record dial gauge reading a2, obtain the linear chi of orientation gyroaxis and pitching gyroaxis
Very little error and angular error.
In the step 3, the linear dimension error of orientation gyroaxis and pitching gyroaxis is：
In the step 3, the angular error formula of orientation gyroaxis and pitching gyroaxis is：L is the distance along axis of rotation between two standard balls.
Advantageous Effects of the invention are：Standard ball uses diameter 25mm steel balls, 0.1 μm of steel ball circularity.
High accuracy dial gauge uses high accuracy inductance sensor, and accuracy of measurement is 0.1 μm.Using above-mentioned standard to bowing
The quadrature shaft for facing upward axle span 200mm is measured, and two quadrature shafts can be being obtained just by theoretical calculation
The property handed over accuracy of measurement reaches 0.2 ".
Brief description of the drawings
Fig. 1 is a kind of structural representation of rotary axis system orthogonality measurement apparatus provided by the present invention.
In figure：1- slew gear bases；2- orientation gyroaxis；3-U type frame；4-I standard balls；5- pitching is turned round
Axle；6-II standard balls；7- high accuracy dial gauges；8- dial gauge supports；9- dial gauge bases；10- measuring tables.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of rotary axis system orthogonality measurement apparatus of the invention, the device includes measuring table
10th, slew gear base 1, orientation gyroaxis 2, U-shaped frame 3, I standard balls 4, pitching gyroaxis 5, II
Standard ball 6, high accuracy dial gauge 7, dial gauge support 8, dial gauge base 9, slew gear base 1 lead to
Threaded connection is crossed to be fixed on measuring table 10；The two ends of orientation gyroaxis 2 pass through bearing and axle sleeve and turn-around machine
Structure base 1 is connected with U-shaped frame 3；U-shaped frame 3U is fixed in the two ends of pitching gyroaxis 5 by bearing and axle sleeve
Shape inside and pass U-shaped frame 3；I standard balls 4 and II standard balls 6 are turned round by two-dimensional adjusting mechanism with pitching
The two ends of axle 5 are connected；High accuracy dial gauge 7 is connected by screw thread with dial gauge support 8；Dial gauge support 8
It is threadably secured on dial gauge base 9；Dial gauge base 9 is threadably secured on measuring table.
A kind of rotary axis system orthogonality measuring method, specifically includes following steps：
The adjustment of step one, standard ball and pitch axis, the surface of I standard balls 4 is contacted by high accuracy dial gauge 7,
Revolution pitching gyroaxis 5, judges the standard ball centre of sphere with revolution by observing the data variation of high accuracy dial gauge 7
The deviation of axis, if the reading in the turning course of pitching gyroaxis 5 of high accuracy dial gauge 7 changes, passes through
Two-dimensional adjusting mechanism adjusts the standard ball position, makes high accuracy dial gauge 7 in the turning course of pitching gyroaxis 5
Middle reading is constant, and now the standard ball centre of sphere is finished with the axis trimming of pitching gyroaxis 5, gyrobearing revolution
Axle 2, high accuracy dial gauge is contacted by II standard balls, similarly adjusts II standard balls 6 and the axle of pitching gyroaxis 5
Line position；
Step 2, the determination of orthogonality measuring basis, mobile accuracy dial gauge 7, on the bottom surface of I standard balls 4 or top
The reentry point of precision dial gauge 7 is found near the position of face, that is, finds I standard balls extreme lower position or extreme higher position, Gu
Determine precision dial gauge 7, and write down dial gauge reading a1, now measuring basis determines to finish；
Step 3, axis vertical take-off measurement, 180 ° are rotated by orientation gyroaxis 2, make II standard balls 6 and I
The position of standard ball 4 is exchanged, mobile dial gauge, finds the reentry point of II standard balls, that is, find II standard balls most
Lower position or extreme higher position, record dial gauge reading a2, and now orientation gyroaxis and pitching gyroaxis is linear
Scale error is：Angular error formula is：L be two standard balls it
Between along axis of rotation distance.
I standard balls 4 and the position of II standard balls 6 can exchange in foregoing description, all belonging to and measured described in this programme
Method.
The present invention is explained in detail above in conjunction with drawings and Examples, but the present invention be not limited to it is above-mentioned
Embodiment, in the ken that those of ordinary skill in the art possess, can also not depart from the present invention
Various changes can be made on the premise of objective.The content not being described in detail in the present invention can use existing skill
Art.
Claims (5)
1. a kind of rotary axis system orthogonality measurement apparatus, it is characterised in that：The device includes measuring table (10), slew gear base (1), orientation gyroaxis (2), U-shaped frame (3), I standard balls (4), pitching gyroaxis (5), II standard balls (6), high accuracy dial gauge (7), dial gauge support (8), dial gauge base (9), and slew gear base (1) is fixed on measuring table (10)；The rotation of orientation gyroaxis (2) two ends is fixed on slew gear base (1) and is connected with U-shaped frame (3)；The rotation of pitching gyroaxis (5) two ends is fixed on U-shaped frame (3) U-shaped inside and passes U-shaped frame (3)；I standard balls (4) and II standard balls (6) are connected with pitching gyroaxis (5) two ends；Dial gauge base (9) is fixed on measuring table (10)；Dial gauge support (8) is fixed on dial gauge base (9) relative to measuring table (10) opposite side；High accuracy dial gauge (7) is fixed on dial gauge support (8).
2. a kind of rotary axis system orthogonality measurement apparatus according to claim 1, it is characterised in that：Described I standard balls (4) and II standard balls (6) is connected by two-dimensional adjusting mechanism with pitching gyroaxis (5) two ends.
3. a kind of rotary axis system orthogonality measuring method, it is characterised in that：Specifically include following steps：
Step one, the adjustment of standard ball and pitch axis, high accuracy dial gauge (7) is contacted into I standard ball (4) surface, revolution pitching gyroaxis (5), by observing high accuracy dial gauge (7) data variation, if high accuracy dial gauge (7) reading in pitching gyroaxis (5) turning course changes, the standard ball position is adjusted by two-dimensional adjusting mechanism, make high accuracy dial gauge (7) reading in pitching gyroaxis (5) turning course constant, now the standard ball centre of sphere is finished with pitching gyroaxis (5) axis trimming, gyrobearing gyroaxis (2), II standard balls are contacted into high accuracy dial gauge (7), adjustment II standard balls (6) and pitching gyroaxis (5) axial location；
Step 2, orthogonality measuring basis determine, mobile accuracy dial gauge (7), precision dial gauge (7) reentry point is found near I standard balls (4) bottom surface or top side location, find I standard balls extreme lower position or extreme higher position, fixed precision dial gauge (7), and dial gauge reading a1 is write down, now measuring basis determines to finish；
Step 3, axis vertical take-off measurement, orientation gyroaxis (2) is rotated 180 °, II standard balls (6) are made to be exchanged with I standard balls (4) position, mobile accuracy dial gauge (7), find the reentry point of II standard balls, II standard balls extreme lower position or extreme higher position are found, dial gauge reading a2 is recorded, the linear dimension error and angular error of orientation gyroaxis and pitching gyroaxis is obtained.
4. a kind of rotary axis system orthogonality measuring method according to claim 3, it is characterised in that：In the step 3, the linear dimension error of orientation gyroaxis and pitching gyroaxis is：。
5. a kind of rotary axis system orthogonality measuring method according to claim 3, it is characterised in that：In the step 3, the angular error formula of orientation gyroaxis and pitching gyroaxis is：L is the distance along axis of rotation between two standard balls.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510462936.0A CN106705821B (en) | 2015-07-31 | 2015-07-31 | A kind of rotary axis system orthogonality measurement method and device |
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| CN201510462936.0A CN106705821B (en) | 2015-07-31 | 2015-07-31 | A kind of rotary axis system orthogonality measurement method and device |
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| CN106705821A true CN106705821A (en) | 2017-05-24 |
| CN106705821B CN106705821B (en) | 2019-05-17 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443332A (en) * | 2018-12-11 | 2019-03-08 | 河北汉光重工有限责任公司 | A kind of laser measurement method of the anti-monitoring turntable shafting orthogonality in land |
| CN110631523A (en) * | 2019-10-16 | 2019-12-31 | 大连理工大学 | Device and method for measuring position error between shafts of precise two-dimensional rotary table |
| CN110823059A (en) * | 2019-10-14 | 2020-02-21 | 湖北三环锻造有限公司 | Device and method for detecting center height of automobile steering knuckle |
| CN111023947A (en) * | 2019-12-27 | 2020-04-17 | 北京航天计量测试技术研究所 | Inter-axis distance measuring method, device and system, storage medium and processor |
| CN113670238A (en) * | 2021-07-29 | 2021-11-19 | 深圳市中图仪器股份有限公司 | Method for measuring orthogonality of orthogonal axis system |
| CN113739700A (en) * | 2020-12-25 | 2021-12-03 | 深圳市中图仪器股份有限公司 | Method for adjusting orthogonal axis system of coordinate measuring instrument |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443332A (en) * | 2018-12-11 | 2019-03-08 | 河北汉光重工有限责任公司 | A kind of laser measurement method of the anti-monitoring turntable shafting orthogonality in land |
| CN110823059A (en) * | 2019-10-14 | 2020-02-21 | 湖北三环锻造有限公司 | Device and method for detecting center height of automobile steering knuckle |
| CN110823059B (en) * | 2019-10-14 | 2021-04-30 | 湖北三环锻造有限公司 | Device for detecting center height of automobile steering knuckle |
| CN110631523A (en) * | 2019-10-16 | 2019-12-31 | 大连理工大学 | Device and method for measuring position error between shafts of precise two-dimensional rotary table |
| CN111023947A (en) * | 2019-12-27 | 2020-04-17 | 北京航天计量测试技术研究所 | Inter-axis distance measuring method, device and system, storage medium and processor |
| CN113739700A (en) * | 2020-12-25 | 2021-12-03 | 深圳市中图仪器股份有限公司 | Method for adjusting orthogonal axis system of coordinate measuring instrument |
| CN113739700B (en) * | 2020-12-25 | 2023-09-01 | 深圳市中图仪器股份有限公司 | Method for adjusting orthogonal axis system of coordinate measuring instrument |
| CN113670238A (en) * | 2021-07-29 | 2021-11-19 | 深圳市中图仪器股份有限公司 | Method for measuring orthogonality of orthogonal axis system |
| CN113670238B (en) * | 2021-07-29 | 2021-12-31 | 深圳市中图仪器股份有限公司 | Method for measuring orthogonality of orthogonal axis system |
| CN114088037A (en) * | 2021-07-29 | 2022-02-25 | 深圳市中图仪器股份有限公司 | Method for measuring orthogonality of orthogonal axis system of instrument |
| CN114111688A (en) * | 2021-07-29 | 2022-03-01 | 深圳市中图仪器股份有限公司 | Device and method for measuring orthogonality of orthogonal axis system |
| WO2023005122A1 (en) | 2021-07-29 | 2023-02-02 | 深圳市中图仪器股份有限公司 | Method for measuring orthogonality of orthogonal axis system |
| CN114088037B (en) * | 2021-07-29 | 2023-08-11 | 深圳市中图仪器股份有限公司 | Method for measuring orthogonality of orthogonal axis system of instrument |
| CN114111688B (en) * | 2021-07-29 | 2023-08-25 | 深圳市中图仪器股份有限公司 | Device and method for measuring orthogonality of orthogonal axis system |
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| CN106705821B (en) | 2019-05-17 |
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