CN106643576A - Non-concentricity measurement method and non-concentricity measurement device - Google Patents
Non-concentricity measurement method and non-concentricity measurement device Download PDFInfo
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- CN106643576A CN106643576A CN201710048654.5A CN201710048654A CN106643576A CN 106643576 A CN106643576 A CN 106643576A CN 201710048654 A CN201710048654 A CN 201710048654A CN 106643576 A CN106643576 A CN 106643576A
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- turntable
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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
- G01B11/272—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 using photoelectric detection means
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a non-concentricity measurement method and a non-concentricity measurement device and relates to the technical field of engine assembly measurement. The non-concentricity measurement method comprises the following steps of: step 1, mounting a first standard rotary table and a second standard rotary table on a first detected hole and a second detected hole respectively, and adjusting the non-concentricity among the first standard rotary table and the second standard rotary table, and corresponding mounting holes; step 2, emitting laser to an imaging sensor on the second standard rotary table through a laser emitter on the first standard rotary table, and calculating the non-concentricity between the first standard rotary table and the second standard rotary table; and step 3, calculating the non-concentricity between the first detected hole and the second detected hole. The non-concentricity measurement device is used for measuring by utilizing the non-concentricity measurement method. The non-concentricity measurement method has the advantages that one hole is used as a measurement standard and the non-concentricity measurement method can be applied to non-concentricity testing in assembling of high-rotary-speed and large-supporting-point-span rotary mechanical systems including aircraft engines, gas turbines and the like.
Description
Technical field
The present invention relates to engine measuring technical field, and in particular to a kind of nonconcentricity measuring method and nonconcentricity are surveyed
Amount device.
Background technology
Generally aero-engine is very high for the nonconcentricity requirement that stator is supported, and the countershaft of two bearing support holes
To span farther out.Measurement pair as if two, three dead eyes between nonconcentricity.Typically surveyed as datum axis with a hole
The center of circle in other holes is measured relative to the distance and tested axially bored line of axis and the angle of datum axis.Traditional basic hole system laser
Centering instrument generally requires two holes to be set up axis and measures, it is impossible to meet this test request.
Existing technology can not solve single hole orientation problem and horizontal large span measurement problem.For as aero-engine
Horizontal survey large span stator supports the problem of nonconcentricity in the big rotatory mechanical system of so high rotating speed, fulcrum span, existing
Some technologies are difficult to high-precision measurement.
The content of the invention
It is an object of the invention to provide a kind of nonconcentricity measuring method and nonconcentricity measurement apparatus, with solution or at least
Mitigate the problem at least in the presence of background technology.
The technical solution used in the present invention is：A kind of nonconcentricity measuring method is provided, is comprised the steps of：
Step one, by the first benchmark turntable the first measured hole is arranged on, and is adjusted the first benchmark using the first measurement apparatus and is turned
The installation site of platform, makes the nonconcentricity of the first benchmark turntable and the first measured hole in the range of specification error, and is recorded as
One error；Second benchmark turntable is arranged on into the second measured hole, using the second measurement apparatus the installation of the second benchmark turntable is adjusted
Position, makes the nonconcentricity of the second benchmark turntable and the second measured hole in the range of specification error, and is recorded as the second error；
Step 2, opens the generating laser on the first benchmark turntable, laser irradiate on the second benchmark turntable into
As sensor forms the point of certain position, the second benchmark turntable of rotation at least a week, according to the position of laser spots on imaging sensor
The nonconcentricity calculated between the second benchmark turntable and the first benchmark turntable is put, the 3rd error is recorded as；
Step 3, first error, the second error and the 3rd error is added, you can calculate first measured hole
With the nonconcentricity between the second measured hole.
Preferably, in the step one, the first benchmark turntable is rotated, using the first measurement apparatus the first measured hole is measured
Circular runout, the fixed position of the first benchmark turntable is adjusted according to the circular runout value so that the first benchmark turntable and the
The nonconcentricity of one measured hole is in the range of specification error.
Preferably, when the circular runout of the first measured hole is measured using the first measurement apparatus, including at least described the
The circular runout value of two axially different positions in one measured hole.
Preferably, when the position of the first benchmark turntable is determined in the step one, also comprising using the first measurement apparatus
Measure the end face run-out value of the first measured hole.
Preferably, in the step one, the adjustment of the method for adjustment of the second benchmark turntable and the first benchmark turntable
Method is identical；First error, the second error and the 3rd error finally show institute by data processor acquisition process
State the decentraction angle value between the first measured hole and the second measured hole.
Present invention also offers a kind of nonconcentricity measurement apparatus, for nonconcentricity measuring method as above, institute
Nonconcentricity measurement apparatus are stated comprising the first benchmark turntable and the second benchmark turntable；
The first benchmark turntable is arranged in the first measured hole, and on the first benchmark turntable the first measurement apparatus are provided with,
First measurement apparatus are used to adjust the first benchmark turntable with the nonconcentricity of first measured hole；
The second benchmark turntable is arranged in the second measured hole, and on the second benchmark turntable the second measurement apparatus are provided with,
Second measurement apparatus are used to adjust the second benchmark turntable with the nonconcentricity of second measured hole；
Generating laser is provided with the first benchmark turntable；Imaging sensing is provided with the second benchmark turntable
Device, the imaging sensor is used to receive the laser signal that the generating laser sends.
In above-mentioned nonconcentricity measurement apparatus, it is preferable that be provided with the first radial measurement in first measurement apparatus
Table, the first radial measurement table is used to measure the circular runout value of first measured hole.
In above-mentioned nonconcentricity measurement apparatus, it is preferable that first end face survey is additionally provided with first measurement apparatus
Scale, the first end face measurement table is used to measure the end face run-out value of first measured hole.
In above-mentioned nonconcentricity measurement apparatus, it is preferable that second measurement apparatus comprising the second radial measurement table and
Second end face measurement table, the second radial measurement table is used to measure the circular runout of second measured hole, second end
Planar survey table is used to measure the end face run-out of second measured hole.
In above-mentioned nonconcentricity measurement apparatus, it is preferable that the nonconcentricity measurement apparatus also include data processor,
The data processor is connected with first measurement apparatus and the second measurement apparatus, for acquisition process measured value, and shows
Show the nonconcentricity between the first measured hole and the second measured hole after processing.
The beneficial effects of the present invention is：The nonconcentricity measuring method of the present invention is surveyed using a hole as measuring basis
The nonconcentricity of other positioning supported holes is measured, the high rotating speed such as aero-engine, gas turbine, fulcrum span can be applied to big
Nonconcentricity test in rotatory mechanical system assembling.
Description of the drawings
Fig. 1 is the flow chart of the nonconcentricity measuring method of one embodiment of the invention.
Fig. 2 is the schematic diagram of the nonconcentricity measurement apparatus of one embodiment of the invention.
Wherein, the first benchmark of 1- turntable, the measurement apparatus of 11- first, the measured holes of 2- first, 3- the second benchmark turntables, 31-
Two measurement apparatus, the measured holes of 4- second, 5- generating lasers, 6- imaging sensors, 7- data processors.
Specific embodiment
To make purpose, technical scheme and the advantage of present invention enforcement clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from start to finish or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
A part of embodiment, rather than the embodiment of whole.It is exemplary below with reference to the embodiment of Description of Drawings, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.Under
Face combines accompanying drawing and embodiments of the invention is described in detail.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " is based on accompanying drawing institute
The orientation for showing or position relationship, are for only for ease of the description present invention and simplify description, rather than indicate or imply the dress of indication
Put or element with specific orientation, with specific azimuth configuration and operation, therefore it is not intended that must be protected to the present invention
The restriction of scope.
As shown in figure 1, a kind of nonconcentricity measuring method, comprises the steps of：
Step one, by the first benchmark turntable 1 the first measured hole 2 is arranged on, and using the first measurement apparatus 11 the first base is adjusted
The installation site of quasi- turntable 1, makes the nonconcentricity of the first benchmark turntable 1 and the first measured hole 2 in the range of specification error, and remembers
Record as the first error；Second benchmark turntable 3 is arranged on into the second measured hole 4, using the second measurement apparatus 31 the second benchmark is adjusted
The installation site of turntable 3, makes the nonconcentricity of the second benchmark turntable 3 and the second measured hole 4 in the range of specification error, and records
For the second error.
It is understood that the nonconcentricity specification error scope of the first benchmark turntable 1 and the first measured hole 2 can basis
Actual conditions set, and for nonconcentricity requires higher operating mode, the specification error scope should be less, while reducing the as far as possible
One error amount, to improve certainty of measurement；In the same manner, the nonconcentricity regulation of the second benchmark turntable 3 and the second measured hole 4 can be set
Error range, and the second error amount is reduced as far as possible, to improve certainty of measurement.
Step 2, opens the generating laser 5 on the first benchmark turntable 1, the imaging that laser is irradiated on the second benchmark turntable 3
Sensor 6 forms the point of certain position, the second benchmark turntable 3 of rotation at least a week, according to the position of laser spots on imaging sensor 6
The nonconcentricity calculated between the second benchmark turntable 3 and the first benchmark turntable 1 is put, the 3rd error is recorded as；
Step 3, first error, the second error and the 3rd error are added, you can calculate the first measured hole 2 with
Nonconcentricity between second measured hole 4.
In one the step of the present embodiment, the first benchmark turntable 1 is rotated, it is tested using the measurement first of the first measurement apparatus 11
The circular runout in hole 2, adjusts the fixed position of the first benchmark turntable 1 so that the first benchmark turntable 1 according to the circular runout value
With the nonconcentricity of the first measured hole 2 in the range of specification error.
In one the step of the present embodiment, when determining the position of the first benchmark turntable 1, also comprising using the first measurement apparatus
The end face run-out value of 11 the first measured holes 2 of measurement.
Specifically, in the present embodiment, the circular runout value of the first measured hole 2 is measured simultaneously by the first measurement apparatus 11
With end face run-out value, the axis of the first measured hole 2 and the rotation axis of the first benchmark turntable 1 can be calculated according to measurement result
Between geometrical relationship, in the case where deviateing and exceeding design requirement, adjust relation therebetween, make between the two axis
Deviation meets the requirements.
It is understood that actually determining that the rotation axis of the first benchmark turntable 1 is same with the axis of the first measured hole 2
When axle is spent, alternate manner can also be adopted.For example, in an alternative embodiment, using the measurement of the first measurement apparatus 11 the
During the circular runout of one measured hole 2, including at least the circular runout of two axially different positions in first measured hole 2
Value.By the circular runout value of two axially different positions in the first measured hole 2, it is also possible to the first measured hole 2 can be calculated
Axis and the rotation axis of the first benchmark turntable 1 between geometrical relationship, deviate exceed design requirement in the case of, adjustment
Therebetween relation, makes the deviation between the two axis meet the requirements.
In one the step of the present embodiment, the method for adjustment of the method for adjustment of the second benchmark turntable 3 and the first benchmark turntable 1
It is identical, the circular runout value and end face run-out value of the second measured hole 4 are measured simultaneously by the second measurement apparatus 31, according to measurement knot
Fruit can calculate the geometrical relationship between the axis of the second measured hole 4 and the rotation axis of the second benchmark turntable 3, super deviateing
In the case of crossing design requirement, relation therebetween is adjusted, make the deviation between the two axis meet the requirements.Described first misses
Difference, the second error and the 3rd error finally show first measured hole 2 and the by the acquisition process of data processor 7
Decentraction angle value between two measured holes 4.
As shown in Fig. 2 present invention also offers a kind of nonconcentricity measurement apparatus, survey for nonconcentricity as above
Amount method, the nonconcentricity measurement apparatus include the first benchmark turntable 1 and the second benchmark turntable 3；First benchmark turntable 1 is installed
In the first measured hole 2, the first measurement apparatus 11 are provided with the first benchmark turntable 1, the first measurement apparatus 11 are used for adjustment the
The nonconcentricity of one benchmark turntable 1 and the first measured hole 2.
In the present embodiment, the first measurement apparatus 11 are comprising the first radial measurement table and first end face measurement table, the first footpath
It is used for the circular runout value of the first measured hole 2 of measurement to measurement table, first end face measurement table is used for the end of the first measured hole 2 of measurement
Face jitter values.
By rotating the first benchmark turntable 1, while measuring the circular runout value and end face run-out value of the first measured hole 2, root
The geometrical relationship between the axis of the first measured hole 2 and the rotation axis of the first benchmark turntable 1 can be calculated according to measurement result,
In the case where deviateing more than design requirement, relation therebetween is adjusted, make the deviation between the two axis meet the requirements.
Second benchmark turntable 3 is arranged in the second measured hole 4, and the second measurement apparatus 31 are provided with the second benchmark turntable 3,
Second measurement apparatus 31 are used for the nonconcentricity of the second benchmark turntable 3 of adjustment and the second measured hole 4.
In the present embodiment, the second measurement apparatus 31 are comprising the second radial measurement table and second end face measurement table, the second footpath
It is used for the circular runout of the second measured hole 4 of measurement to measurement table, second end face measurement table is used for the end face of the second measured hole 4 of measurement
Bounce.Can be calculated according to measurement result several between the axis of the second measured hole 4 and the rotation axis of the second benchmark turntable 3
What relation, in the case where deviateing more than design requirement, adjusts relation therebetween, meets the deviation between the two axis
Require.
In the present embodiment, generating laser 5 is provided with the first benchmark turntable 1, generating laser 5 is arranged on the first base
Near the side of the second benchmark turntable 3 in the rotary shaft of quasi- turntable 1；Imaging sensor 4 is provided with second benchmark turntable 3, into
As sensor 4 is arranged in the rotary shaft of the second benchmark turntable 3 near the side of the first benchmark turntable 1, imaging sensor 4 is used for
Receive the laser signal that generating laser 5 sends.
In the present embodiment, the nonconcentricity measurement apparatus also include data processor 7, data processor 7 and first
The measurement apparatus 31 of measurement apparatus 11 and second connect, for acquisition process measured value, and the first measured hole 1 after display processing
With the nonconcentricity between the second measured hole 4.
It is last it is to be noted that：Above example only to illustrate technical scheme, rather than a limitation.To the greatest extent
Pipe has been described in detail with reference to the foregoing embodiments to the present invention, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, or equivalent is carried out to which part technical characteristic and replaced
Change；And these modifications or replacement, do not make the essence of the essence disengaging various embodiments of the present invention technical scheme of appropriate technical solution
God and scope.
Claims (10)
1. a kind of nonconcentricity measuring method, it is characterised in that comprise the steps of：
Step one, by the first benchmark turntable (1) installed in the first measured hole (2), using the first measurement apparatus (11) first is adjusted
The installation site of benchmark turntable (1), makes the nonconcentricity of the first benchmark turntable (1) and the first measured hole (2) in specification error model
In enclosing, and it is recorded as the first error；By the second benchmark turntable (3) installed in the second measured hole (4), using the second measurement apparatus
(31) installation site of the second benchmark turntable (3) is adjusted, the nonconcentricity of the second benchmark turntable (3) and the second measured hole (4) is made
In the range of specification error, and it is recorded as the second error；
Step 2, opens the generating laser (5) on the first benchmark turntable (1), and laser is irradiated on the second benchmark turntable (3)
Imaging sensor (6) form the point of certain position, rotation the second benchmark turntable (3) at least a week, according to imaging sensor (6)
Nonconcentricity between the position calculation the second benchmark turntable (3) of upper laser spots and the first benchmark turntable (1), is recorded as the 3rd mistake
Difference；
Step 3, first error, the second error and the 3rd error is added, you can calculate first measured hole (2)
With the nonconcentricity between the second measured hole (4).
2. nonconcentricity measuring method as claimed in claim 1, it is characterised in that：In the step one, the first base is rotated
Quasi- turntable (1), measures the circular runout of the first measured hole (2), according to the circular runout value using the first measurement apparatus (11)
Adjust the fixed position of the first benchmark turntable (1) so that the first benchmark turntable (1) exists with the nonconcentricity of the first measured hole (2)
In the range of specification error.
3. nonconcentricity measuring method as claimed in claim 2, it is characterised in that：Measured using the first measurement apparatus (11)
During the circular runout of the first measured hole (2), including at least the footpath of two axially different positions in first measured hole (2)
To jitter values.
4. nonconcentricity measuring method as claimed in claim 2, it is characterised in that：The first benchmark is determined in the step one
During the position of turntable (1), also comprising the end face run-out value that the first measured hole (2) is measured using the first measurement apparatus (11).
5. the nonconcentricity measuring method as described in claim 3 or 4, it is characterised in that：In the step one, the second benchmark
The method of adjustment of turntable (3) is identical with the method for adjustment of the first benchmark turntable (1)；First error, the second error and
3rd error finally shows first measured hole (2) and the second measured hole by data processor (7) acquisition process
(4) the decentraction angle value between.
6. a kind of nonconcentricity measurement apparatus, for the nonconcentricity measuring method as described in any one of claim 1 to 5, its
It is characterised by：The nonconcentricity measurement apparatus include the first benchmark turntable (1) and the second benchmark turntable (3)；
The first benchmark turntable (1) is provided with the first measurement in the first measured hole (2) on the first benchmark turntable (1)
Device (11), first measurement apparatus (11) are for adjusting the first benchmark turntable (1) with first measured hole (2)
Nonconcentricity；
The second benchmark turntable (3) is provided with the second measurement in the second measured hole (4) on the second benchmark turntable (3)
Device (31), second measurement apparatus (31) are for adjusting the second benchmark turntable (3) with second measured hole (4)
Nonconcentricity；
Generating laser (5) is provided with the first benchmark turntable (1)；Imaging is provided with the second benchmark turntable (3)
Sensor (4), the imaging sensor (4) is for receiving the laser signal that the generating laser (5) sends.
7. nonconcentricity measurement apparatus as claimed in claim 6, it is characterised in that：Arrange on first measurement apparatus (11)
There is the first radial measurement table, the first radial measurement table is used to measure the circular runout value of first measured hole (2).
8. nonconcentricity measurement apparatus as claimed in claim 7, it is characterised in that：Also set on first measurement apparatus (11)
First end face measurement table is equipped with, the first end face measurement table is used to measure the end face run-out value of first measured hole (2).
9. nonconcentricity measurement apparatus as claimed in claim 8, it is characterised in that：Second measurement apparatus (31) include
Two radial measurement tables and second end face measurement table, the second radial measurement table is used to measure the footpath of second measured hole (4)
To bounce, the second end face measurement table is used to measure the end face run-out of second measured hole (4).
10. nonconcentricity measurement apparatus as claimed in claim 9, it is characterised in that：The nonconcentricity measurement apparatus are also wrapped
Containing data processor (7), the data processor is connected with first measurement apparatus (11) and the second measurement apparatus (31), uses
In acquisition process measured value, and the nonconcentricity between the first measured hole (1) and the second measured hole (4) after display processing.
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| CN201710048654.5A CN106643576B (en) | 2017-01-23 | 2017-01-23 | Method and device for measuring non-concentricity |
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| CN201710048654.5A CN106643576B (en) | 2017-01-23 | 2017-01-23 | Method and device for measuring non-concentricity |
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| CN107270838A (en) * | 2017-07-14 | 2017-10-20 | 上海萨克斯动力总成部件系统有限公司 | The test device and method at the axle of gearbox one and engine crankshaft not coaxial eccentric angle |
| CN108195338A (en) * | 2018-02-14 | 2018-06-22 | 国家电网公司 | A kind of shaft centerline measurement device and method |
| CN112372602A (en) * | 2020-11-13 | 2021-02-19 | 长安大学 | Quick and accurate leveling method for three-point support precision measurement rotary table |
| CN112629445A (en) * | 2020-11-27 | 2021-04-09 | 中国航发四川燃气涡轮研究院 | Two-hole radial and angular centering measurement method and tool |
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| CN107270838A (en) * | 2017-07-14 | 2017-10-20 | 上海萨克斯动力总成部件系统有限公司 | The test device and method at the axle of gearbox one and engine crankshaft not coaxial eccentric angle |
| CN108195338A (en) * | 2018-02-14 | 2018-06-22 | 国家电网公司 | A kind of shaft centerline measurement device and method |
| CN108195338B (en) * | 2018-02-14 | 2020-05-22 | 国家电网公司 | Axial line measuring device and method |
| CN112372602A (en) * | 2020-11-13 | 2021-02-19 | 长安大学 | Quick and accurate leveling method for three-point support precision measurement rotary table |
| CN112372602B (en) * | 2020-11-13 | 2021-11-30 | 长安大学 | Quick and accurate leveling method for three-point support precision measurement rotary table |
| CN112629445A (en) * | 2020-11-27 | 2021-04-09 | 中国航发四川燃气涡轮研究院 | Two-hole radial and angular centering measurement method and tool |
| CN112629445B (en) * | 2020-11-27 | 2022-10-11 | 中国航发四川燃气涡轮研究院 | Two-hole radial and angular centering measurement method and tool |
| CN113983963A (en) * | 2021-10-29 | 2022-01-28 | 广州文冲船厂有限责任公司 | Multi-section boring bar concentricity measuring device and adjusting method |
| CN113983963B (en) * | 2021-10-29 | 2023-11-03 | 广州文冲船厂有限责任公司 | Concentricity measuring device and adjusting method for multi-section boring bar |
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