CN107228615A - A kind of outer singly-bound symmetry measurement apparatus of axle and measuring method - Google Patents
A kind of outer singly-bound symmetry measurement apparatus of axle and measuring method Download PDFInfo
- Publication number
- CN107228615A CN107228615A CN201710423441.6A CN201710423441A CN107228615A CN 107228615 A CN107228615 A CN 107228615A CN 201710423441 A CN201710423441 A CN 201710423441A CN 107228615 A CN107228615 A CN 107228615A
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- workpiece
- locating piece
- measurement apparatus
- dial gauge
- symmetry
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- 238000005259 measurement Methods 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005305 interferometry Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0018—Measuring arrangements characterised by the use of mechanical techniques for measuring key-ways
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses singly-bound symmetry measurement apparatus and measuring method outside a kind of axle, including measurement apparatus body and locating piece, the locating piece is arranged on the cross bar bottom of the body, one end is installed in the single key slot of workpiece to be measured when measuring, dial gauge is connected with the middle part of the montant of the body, the top of the dial gauge is connected with the gauge head of cylindrical structure, and the gauge head is contacted with the workpiece for carrying out symmetry measurement.Using with the wide locating piece being engaged of processed workpiece slot, stick into the positioning datum as whole measurement apparatus in single key slot, accurate positioning is reliable, coordinated using dial gauge and the gauge head on the face of cylinder, it is easy to gauge head to touch the cylindrical peak of this section of workpiece, the influence of this section of roundness of external circle and straightness error can be neglected.
Description
Technical field
The invention belongs to parts measurement technical field, and in particular to a kind of outer singly-bound symmetry measurement apparatus of axle and measurement side
Method.
Background technology
The outer single key slot symmetry of axis products has two major class metering systems：One is to utilize symmetry gauge method, and advantage is
The quick measurement of processing site can be realized, has the disadvantage that specific data can not be obtained, the adjustment to lathe is not helped；Two be to borrow
Help V-block workpiece inversion method or obtain deviation numerical value of the key slot center relative to shaft centre line with three coordinate methods, then by meter
Calculation draws symmetry numerical value, and this method has the disadvantage averagely to take 4~6 minutes, and advantage can obtain the off-center axis of single key slot
Direction and numerical value, are easy to carry out the adjustment of machine tooling data in time.
Equations of The Second Kind measuring method takes more, and along with queuing up, waiting time of machine halt, class's yield can not ensure.Exist in addition
Eventually during the layout inspection of inspection process, if piece count is more, the contradiction being exposed in aforementioned manners is more prominent, because
This is badly in need of a kind of method and measurer for being easy to in-site measurement.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of axle outer singly-bound
Symmetry measurement apparatus and measuring method, in time and are accurately obtained required data, are easy to scene to judge and adjust lathe parameter.
The present invention uses following technical scheme：
A kind of outer singly-bound symmetry measurement apparatus of axle, including measurement apparatus body and locating piece, the locating piece are arranged on
The cross bar bottom of the body, one end is installed in the single key slot of workpiece to be measured when measuring, and is connected in the middle part of the montant of the body
Dial gauge is connected to, the top of the dial gauge is connected with the gauge head of cylindrical structure, and the gauge head is contacted with the workpiece to be used for
Carry out symmetry measurement.
Further, the locating piece is strip structure, is provided at both ends with circular arc.
Further, the width of the locating piece is less than 0.005~0.015mm of the workpiece width of keyway.
Further, the length of the locating piece is less than 5~8mm of the workpiece keyway effective length.
Further, the perpendicularity of top surface and width two sides is 0.005 on the locating piece.
Further, the depth of parallelism of the locating piece width two sides is 0.005.
Further, one end of the gauge head is diameter 10mm cylinder, and the other end is set to connect with the dial gauge
The M2.5 external screw threads connect.
The invention also discloses singly-bound symmetry measuring method outside a kind of axle, comprise the following steps：
S1, locating piece is connected through a screw thread be fixed on measurement apparatus body；
S2, gauge head is mounted by screwing on dial gauge, and the axle sleeve of dial gauge is fixedly clamped filled in measurement
Put on body；
S3, the locating piece on body sticked into the single key slot of workpiece for measurement, touch the gauge head on dial gauge to be measured
During the surface of workpiece, the dial gauge show value be 1~2mm, then rotate dial gauge on watch rim by dial gauge to zero；
S4, remove from workpiece whole measurement apparatus and rotated in the plane parallel to workpiece for measurement keyway bottom surface
180 °, then locating piece is sticked into the same position of workpiece, data are then read from dial gauge, now the half of numerical value is single
Keyway calculates symmetry according to existing formula immediately with respect to the deviation value of this shaft centre line.
Further, in step S1, the locating piece compression distance is more than 3/4ths of workpiece keyway depth to be measured.
Compared with prior art, the present invention at least has the advantages that：
The outer singly-bound symmetry measurement apparatus of axle of the present invention use with the wide locating piece being engaged of processed workpiece slot, stick into list
As the positioning datum of whole measurement apparatus in keyway, accurate positioning is reliable, is coordinated using dial gauge and the gauge head on the face of cylinder, just
The cylindrical peak of this section of workpiece can be touched in gauge head, the influence of this section of roundness of external circle and straightness error can be neglected.
Further, consider to be slidably matched with workpiece for measurement width of keyway when locating piece is designed, in measurement process easily
Stick into keyway to be measured and taken out after terminating, and do not lose reliable positioning precision.
Further, dial gauge indicating value is directly perceived, and repeatable accuracy is high, and original spheric probe is only replaced during measurement, is used instead
Big face of cylinder gauge head can touch bigger region, make measurement sensitiveer, accurate.
The invention also discloses singly-bound symmetry measuring method outside a kind of axle, i.e., the cylindrical of workpiece is contacted and fixed by gauge head
Position block is sticked into dial gauge after the keyway of workpiece to zero, then removes measurement apparatus and whole measurement apparatus rotated into 180 °, then
Locating piece is sticked into the same position of workpiece, the data on dial gauge are then read, now the half of numerical value is single key slot phase
To the deviation value of this shaft centre line, symmetry is calculated according to existing formula immediately.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 be measurement apparatus of the present invention work when to nought state schematic diagram, wherein, (a) be front view, (b) for vertical view
Figure；
Fig. 2 is the working state schematic representation that measurement apparatus of the present invention rotates 180 °, wherein, (a) is front view, and (b) is to bow
View；
Fig. 3 is the structural representation of locating piece of the present invention, wherein, (a) is front view, and (b) is top view；
Fig. 4 is the side view of gauge head of the present invention；
Fig. 5 is the structural representation of body of the present invention, wherein, (a) is front view, and (b) is side view；
Fig. 6 is measurement apparatus structural representation of the present invention, wherein, (a) is front view, and (b) is top view；
Fig. 7 is the schematic diagram of V-block workpiece turning method of the present invention.
Wherein：1. workpiece；2. body；3. locating piece；4. gauge head；5. dial gauge；6. screw.
Embodiment
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " top ", " bottom " are, based on orientation shown in the drawings or position relationship, to be only
For the ease of the description present invention and simplified description, rather than indicate or imply that the device or element of meaning must be with specific sides
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Fig. 1, Fig. 3 and Fig. 4 are referred to, the invention provides singly-bound symmetry measurement apparatus outside a kind of axle, is set using special
The locating piece and gauge head of meter, and with being measured again on the dial gauge connected by rotating 180 ° after measurement, obtain both differences
Half, i.e. deviation value, are quickly calculated with this and obtain symmetry.
Referring to Fig. 5, the cross bar bottom of body 2 is provided with shallow slot, locating piece is inlayed after with mode connects for screw on body, erected
Bar bottom parallel to have on the direction of shallow slot the through hole with counterbore can screwing, have receiving dial gauge in the middle part of the shallow slot direction
The through hole of axle sleeve is simultaneously provided with part groove, and this, which is in screw and tightens rear separation and reduce, can clamp the axle sleeve of dial gauge, complete
After assembling dial gauge perpendicular to locating piece width plane, and near the axis centre position of workpiece.
Locating piece 3 is fixed on the body 2 by screw 6, the outer singly-bound groove width of width and workpiece 1 to be measured match
Close, stick into the positioning datum as whole measurement apparatus in single key slot.Locating piece width is less than workpiece for measurement width of keyway 0.005
~0.015mm, length is less than workpiece for measurement keyway effectively long 5-8mm, and effective thickness is not less than keyway depth 8mm, two ends can use
Circular arc finishing, it is impossible to interferometry.There are 0.005 depth of parallelism, the plane of the thickness being in contact with body one and both sides in width two sides
The 0.005 perpendicularity requirement in face.There is the internal thread hole being connected with body at middle part.
One end diameter of gauge head 4 be 10mm, length can specific fixed cylinder again, the other end is connected with dial gauge and uses
M2.5 external screw threads, can be installed on dial gauge by external screw thread.
Dial gauge 5 and gauge head 4 are combined, and changing the gauge head of original pellet shapes into front end has the gauge head on the larger face of cylinder, makes
The measurable range that can be contacted becomes much larger, and is so easy to gauge head to touch the cylindrical peak of this section of workpiece.
Above body, locating piece, gauge head and the specific annexation of dial gauge are shown in Fig. 6.
Fig. 1 and Fig. 2 are referred to, the invention also discloses singly-bound symmetry measuring method outside a kind of axle, is comprised the following steps：
S1, locating piece 3 is connected through a screw thread be fixed on body 2；
S2, gauge head 4 is mounted by screwing on dial gauge 5, clamps the axle sleeve of dial gauge 5 so that dial gauge is fixed
It is connected on body 2；
S3, the locating piece 3 on body 2 sticked into more than 3/4ths of depth in the single key slot of workpiece 1, and adjust gauge head
4 make dial gauge 5 touch the surface of workpiece for measurement, and then dial gauge show value rotates the watch rim of dial gauge between 1~2mm
By dial gauge to zero.
S4, remove from workpiece 1 whole measurement apparatus and rotated in the plane parallel to workpiece for measurement keyway bottom surface
180 °, then locating piece 3 is equally sticked into the same position in the bond distance direction of workpiece 1, data are then read, now the half of numerical value
It is deviation value of the single key slot with respect to this shaft centre line, it is as follows to calculate symmetry β according to existing formula immediately：
The α h/ (D-h) of β=2
Wherein, α is deviation value of the key slot center relative to shaft centre line, and D is excircle of workpiece diameter, and h is keyway depth.
The element to be measured of keyway symmetry is ymmetry center plane, it is impossible to directly embodies and measures, it is necessary to passes through keyway phase
Measured indirectly for the maximum circular arc in cylindrical both sides.This method is being only that opposite side is measured to zeroth order section, it is therefore necessary to
180 ° of rotary measurement devices are measured to opposite side again.It is only the processing of simplified data to zero step, can not also be to zero
Additive operation directly is carried out and except 2 obtain deviation value to the numerical value that both sides are read.
Fig. 7 is the schematic diagram of V-block workpiece turning method, repeatedly levelling twice must be sticked into during measurement in workpiece for measurement keyway
Measure, take altogether 4-6 minutes after the workpiece that the upper plane of locating piece is clamped on V-block again.And three coordinate methods want centering Z
Axial reference plane simultaneously sets up coordinate system, and several points of keyway both sides diverse location need to be gathered again, and to set up different reference planes then more aobvious numerous
It is trivial.And the invention has the advantages that locating piece has been relatively fixed when sticking into workpiece for measurement keyway, now gauge head has been touched most
Large cylindrical and data can be read, about taken 0.15-0.2 minutes, measurement twice takes about 0.5 to zero plus dial gauge
Minute or so.
The technological thought of above content only to illustrate the invention, it is impossible to which protection scope of the present invention is limited with this, it is every to press
According to technological thought proposed by the present invention, any change done on the basis of technical scheme each falls within claims of the present invention
Protection domain within.
Claims (9)
1. the outer singly-bound symmetry measurement apparatus of a kind of axle, it is characterised in that including measurement apparatus body (2) and locating piece (3), institute
The cross bar bottom that locating piece (3) is arranged on the body (2) is stated, one end is installed on the single key slot of workpiece to be measured (1) when measuring
It is interior, dial gauge (5) is connected with the middle part of the montant of the body (2), the top of the dial gauge (5) is connected with cylindrical structure
Gauge head (4), the gauge head (4) is contacted with the workpiece (1) for carrying out symmetry measurement.
2. a kind of outer singly-bound symmetry measurement apparatus of axle according to claim 1, it is characterised in that the locating piece (3)
For strip structure, circular arc is provided at both ends with.
3. a kind of outer singly-bound symmetry measurement apparatus of axle according to claim 2, it is characterised in that the locating piece (3)
Width be less than the workpiece (1) 0.005~0.015mm of width of keyway.
4. a kind of outer singly-bound symmetry measurement apparatus of axle according to claim 2, it is characterised in that the locating piece (3)
Length be less than the workpiece (1) keyway effective length 5~8mm.
5. a kind of outer singly-bound symmetry measurement apparatus of axle according to claim 2, it is characterised in that the locating piece (3)
The perpendicularity of upper top surface and width two sides is 0.005.
6. a kind of outer singly-bound symmetry measurement apparatus of axle according to claim 2, it is characterised in that the locating piece (3)
The depth of parallelism of width two sides is 0.005.
7. the outer singly-bound symmetry measurement apparatus of a kind of axle according to claim 1, it is characterised in that the gauge head (4)
One end is diameter 10mm cylinder, and the other end is set to the M2.5 external screw threads being connected with the dial gauge (5).
8. a kind of method that the outer singly-bound symmetry of axle is measured using measurement apparatus described in claim 1, it is characterised in that including
Following steps：
S1, locating piece is connected through a screw thread be fixed on measurement apparatus body；
S2, gauge head is mounted by screwing on dial gauge, and the axle sleeve of dial gauge is fixedly clamped in measurement apparatus sheet
On body；
S3, the locating piece on body sticked into the single key slot of workpiece for measurement, the gauge head on dial gauge is touched workpiece for measurement
Surface when, the dial gauge show value be 1~2mm, then rotate dial gauge on watch rim by dial gauge to zero；
S4, remove from workpiece whole measurement apparatus and rotate 180 ° in the plane parallel to workpiece for measurement keyway bottom surface, then
Locating piece is sticked into the same position of workpiece, data are then read from dial gauge, now the half of numerical value is single key slot phase
To the deviation value of this shaft centre line, symmetry is calculated according to existing formula immediately.
9. the outer singly-bound symmetry measuring method of a kind of axle according to claim 8, it is characterised in that described in step S1
Locating piece compression distance is more than 3/4ths of workpiece keyway depth to be measured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423441.6A CN107228615A (en) | 2017-06-07 | 2017-06-07 | A kind of outer singly-bound symmetry measurement apparatus of axle and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710423441.6A CN107228615A (en) | 2017-06-07 | 2017-06-07 | A kind of outer singly-bound symmetry measurement apparatus of axle and measuring method |
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| Publication Number | Publication Date |
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| CN107228615A true CN107228615A (en) | 2017-10-03 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710423441.6A Pending CN107228615A (en) | 2017-06-07 | 2017-06-07 | A kind of outer singly-bound symmetry measurement apparatus of axle and measuring method |
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| CN (1) | CN107228615A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458640A (en) * | 2018-03-12 | 2018-08-28 | 西安法士特汽车传动有限公司 | It is a kind of measure endoporus step surface to inner slot end interplanar distance general-purpose type cubing and method |
| CN109780978A (en) * | 2019-03-20 | 2019-05-21 | 盛瑞传动股份有限公司 | A kind of Woodruff key slots and keyways symmetry degree gauge |
| CN109883304A (en) * | 2017-10-19 | 2019-06-14 | 贵州西南工具(集团)有限公司 | A kind of quick detection angles cubing and its measurement method |
| CN113899284A (en) * | 2021-09-29 | 2022-01-07 | 中国航发动力股份有限公司 | Measuring tool and measuring method for detecting thickness of coating of engine blade |
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| CN86202782U (en) * | 1986-04-28 | 1987-12-23 | 董锡翰 | Symmetrical characteristic detector for axial key groove |
| CN201421320Y (en) * | 2009-04-20 | 2010-03-10 | 无锡市中达电机有限公司 | Motor rotating-shaft key-slot symmetry-degree measuring instrument |
| CN101799267A (en) * | 2010-03-19 | 2010-08-11 | 上海电气集团上海电机厂有限公司 | Device and method for measuring symmetry of spindle keyways |
| CN203259082U (en) * | 2013-03-18 | 2013-10-30 | 上虞东州精密机械有限公司 | Inside micrometer for hole distance measuring |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109883304A (en) * | 2017-10-19 | 2019-06-14 | 贵州西南工具(集团)有限公司 | A kind of quick detection angles cubing and its measurement method |
| CN108458640A (en) * | 2018-03-12 | 2018-08-28 | 西安法士特汽车传动有限公司 | It is a kind of measure endoporus step surface to inner slot end interplanar distance general-purpose type cubing and method |
| CN109780978A (en) * | 2019-03-20 | 2019-05-21 | 盛瑞传动股份有限公司 | A kind of Woodruff key slots and keyways symmetry degree gauge |
| CN113899284A (en) * | 2021-09-29 | 2022-01-07 | 中国航发动力股份有限公司 | Measuring tool and measuring method for detecting thickness of coating of engine blade |
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Application publication date: 20171003 |