CN107144203A - A kind of measuring method for being precisely controlled bearing face depression value - Google Patents
A kind of measuring method for being precisely controlled bearing face depression value Download PDFInfo
- Publication number
- CN107144203A CN107144203A CN201710523086.XA CN201710523086A CN107144203A CN 107144203 A CN107144203 A CN 107144203A CN 201710523086 A CN201710523086 A CN 201710523086A CN 107144203 A CN107144203 A CN 107144203A
- Authority
- CN
- China
- Prior art keywords
- bearing
- standard part
- measured bearing
- height
- measured
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A kind of measuring method for being precisely controlled bearing face depression value, it is related to a kind of measuring method.Existing bearing Special measuring instrument is common to standardized designs airframe bearing, when being measured to bearing outer ring with inner ring end face drop is larger or bearing arrangement is complex nonstandardized technique bearing, cause that such bearing measuring process is cumbersome and accuracy is poor because bearing Special measuring instrument can not realize direct measurement.Step one in the present invention：Calibration is zeroed；Step 2：Height Standard part is put into the endoporus of measured bearing, ensure that the bottom of Height Standard part is mutually adjacent to the inner ring end face of measured bearing, now the distance between the top of Height Standard part and the outer ring upper surface of measured bearing are δ, centration axis is placed on footstock, apply the measurement load of design requirement to footstock, until the upper surface of outer ring is adjacent in upper top packing ring in measured bearing, the pointer change of observation instrument；Step 3：Depression value h is calculated using formula.The present invention is used to measure bearing.
Description
Technical field
A kind of measuring method for value of being caved in the present invention relates to bearing face, belongs to measurement length, thickness or similar linear chi
Very little field of measuring techniques.
Background technology
Bearing industry is typically using bearing Special measuring instrument measurement bearing outer ring and inner ring end face convex-concave amount, because bearing is special
Standardized designs airframe bearing is common to measuring instrument, when bearing outer ring and inner ring end face drop are larger or bearing arrangement is more multiple
Miscellaneous nonstandardized technique bearing, bearing Special measuring instrument can not realize direct measurement.When to bearing outer ring and inner ring end face drop compared with
When the big or complex nonstandardized technique bearing of bearing arrangement is measured, the bearing is interior under certain axially measured load
End face is enclosed relative to cycle surface depression value 10mm or so, existing detection means can not accurately measure inner ring sunken end face
Value.
The content of the invention
The invention aims to solve existing bearing Special measuring instrument to be common to standardized designs airframe bearing, when to axle
When bearing outer-ring is measured with the nonstandardized technique bearing that inner ring end face drop is larger or bearing arrangement is complex, because bearing is special
The problem of measuring instrument can not realize direct measurement and cause such cumbersome bearing measuring process and poor accuracy, and then provide a kind of
It is precisely controlled the measuring method of bearing face depression value.
The present invention adopts the technical scheme that to solve above-mentioned technical problem：
A kind of measuring method for being precisely controlled bearing face depression value, the measuring method comprises the following steps：
Step one：Calibration is zeroed：Instrument is corrected using the benchmark sample circle in measuring instrument, first by benchmark sample circle
In centration axis, then the centration axis with benchmark sample circle is placed on footstock, design requirement is applied to footstock
Measurement load, until benchmark sample circle with it is upper push up packing ring be mutually adjacent to when, by the pointer regulation of instrument on 0 position, finally unload
Fall to measure load, remove benchmark sample circle and centration axis；
Step 2：The difference in measured bearing between inner ring face height and outer ring upper surface height is set as depression value h,
The measurement of Height Standard part is highly G, and measured bearing is fixedly mounted in centration axis, Height Standard part is put into measured bearing
Endoporus in, it is ensured that the bottom of Height Standard part and the inner ring end face of measured bearing are mutually adjacent to, now the top of Height Standard part
It is δ with the distance between the outer ring upper surface of measured bearing, then the centration axis with measured bearing is placed on footstock,
Apply the measurement load of design requirement to footstock, until the upper surface of outer ring is adjacent in upper top packing ring in measured bearing, see
The pointer change of instrument is examined, when the pointer of instrument points to "+" direction, shows that the top of Height Standard part is outer higher than measured bearing
Upper surface is enclosed, distance therebetween is δ values；When the pointer of instrument points to "-" direction, show that the top of Height Standard part is low
In the outer ring upper surface of measured bearing, distance therebetween is δ values；
Step 3：The inner ring end face of measured bearing relative to outer ring upper surface depression value h=G- δ, and by step 2
The "+" or "-" symbol for measuring δ are substituted into formula, so as to calculate depression value h.
The beneficial effect of the present invention compared with prior art：
1st, measuring method of the invention is assembled applied to double inner ring double-row angular contact bal bearings, bullet branch ball bearing assembles high
Work is measured, operating procedure of the present invention is simple and reasonable, and measurement is precisely and reliable.
2nd, the present invention is applied widely, applies also for the bulge quantity or depression of the close bearing of similar structure or technical requirements
The measurement of value.The measurement error of the present invention can be controlled within 0.002mm.
Brief description of the drawings
Fig. 1 is the front view structure profile of measured bearing 8；
Fig. 2 is that the direction of arrow represents to measure the force direction of load in the main structure diagram of measuring instrument, figure；
Fig. 3 is the front view structure profile measured using measuring instrument and Height Standard part 9 to measured bearing 8, figure
The middle direction of arrow represents to measure the force direction of load.
Embodiment
Embodiment one：Illustrate present embodiment with reference to Fig. 1, Fig. 2 and Fig. 3, this measuring method comprises the following steps：
Step one：Calibration is zeroed：Instrument 2 is corrected using the benchmark sample circle in measuring instrument, first by benchmark sample
Circle 4 is arranged in centration axis 5, and then the centration axis 5 with benchmark sample circle 4 is placed on footstock 6, footstock 6 is applied
The measurement load of design requirement, until when benchmark sample circle 4 is mutually adjacent to upper top packing ring 3, the position by the pointer regulation of instrument 20
Put, finally lay down measurement load, remove benchmark sample circle 4 and centration axis 5；
Step 2：The difference in measured bearing 8 between inner ring face height and outer ring upper surface height is set as depression value
H, the measurement of Height Standard part 9 is highly G, and measured bearing 8 is fixedly mounted in centration axis 5, by Height Standard part 9 be put into by
In the endoporus for surveying bearing 8, it is ensured that the bottom of Height Standard part 9 and the inner ring end face of measured bearing 8 are mutually adjacent to, now Height Standard
The distance between the top of part 9 and the outer ring upper surface of measured bearing 8 are δ, then put the centration axis 5 with measured bearing 8
Put on footstock 6, apply the measurement load of design requirement to footstock 6, until the upper surface of outer ring is adjacent in measured bearing 8
In upper top packing ring 3, the pointer change of observation instrument 2, when the pointer of instrument 2 points to "+" direction, shows Height Standard part 9
Top is higher than the outer ring upper surface of measured bearing 8, and distance therebetween is δ values；When the pointer sensing "-" direction of instrument 2,
Show that the top of Height Standard part 9 is less than the outer ring upper surface of measured bearing 8, distance therebetween is δ values；
Step 3：The inner ring end face of measured bearing 8 relative to outer ring upper surface depression value h=G- δ, and by step 2
Middle measurement δ "+" or "-" symbol is substituted into formula, so as to calculate depression value h.
In present embodiment the calibration process of step one be in order to realize be applied with measurement load in the case of to instrument 2
Verified.The accuracy that effectively enhancing this method is operated.
The centration axis 5 with benchmark sample circle 4 should be stably placed on footstock 6 in step one in present embodiment.
Benchmark sample circle 4 in present embodiment is mutually adjacent to the upper surface and upper top for referring to benchmark sample circle 4 with upper top packing ring 3
Packing ring 3 is in close contact.
Measuring instrument of the present embodiment includes instrument stand 1, instrument 2, upper top packing ring 3, benchmark sample circle 4, centering
Axle 5 and footstock 6, instrument stand 1 are instrument platen, and instrument stand 1 is machined with first by hole 7 along its plate face thickness direction,
Upper top packing ring 3 is arranged on the underface of instrument stand 1 and the two is detachably connected, and the lower surface of upper top packing ring 3 passes through benchmark sample
Circle 4 is connected with centration axis 5, and the measurement end of instrument 2 sequentially passes through first and held out against by hole 7 and upper top packing ring 3 in benchmark sample circle 4
Upper surface, the lower section of centration axis 5 is provided with footstock 6, and centration axis 5 and footstock 6 are sequentially coaxially set from top to bottom, centering
The lower surface of seat 6 is the strength end of measurement load.
There are the requirement of imposed load, the survey applied twice in present embodiment in the operating process of step one and step 2
Loading gage lotus is identical.
Embodiment two：Illustrate present embodiment with reference to Fig. 1, Fig. 2 and Fig. 3, this measuring method also includes step 4,
Step 4 determines the recessed of measured bearing 8 to calculate h values according to step 3 and the design standard of measured bearing 8 is contrasted
Fall into whether value h processes precisely.Other steps are identical with embodiment one.
Embodiment three：Illustrate Height Standard part 9 in present embodiment, present embodiment with reference to Fig. 1, Fig. 2 and Fig. 3
For cylinder or rectangular blocks, the lower end of Height Standard part 9 is arranged in the endoporus of measured bearing 8, the lower end of Height Standard part 9
Processing forms locating shaft, and the interior interporal lacuna of locating shaft and measured bearing 8 coordinates, the span of the two fit clearance for 0.15 to
0.3mm, optimal value is 0.2mm.The endoporus convenient disassembly for being able to ensure that Height Standard part 9 and measured bearing 8 is arranged such,
The measurement height G of Height Standard part 9 nominal dimension should be identical with the depression value h of design requirement nominal dimension, Height Standard
The roughness of part 9 and the adhesive surface of the inner ring end face of measured bearing 8 is not more than 0.25um, and the upper surface of Height Standard part 9 is thick
Rugosity is not more than 0.25um, and the depth of parallelism and flatness error of Height Standard part 9 are not more than 0.002mm, Height Standard part 9 its
Its size is specifically set according to the concrete structure of measured bearing 8.
Height Standard part 9 in present embodiment includes survey mass and locating shaft, survey mass and locating shaft from top to bottom according to
Secondary be fixedly connected is made as one, and the external diameter or width of survey mass are more than the external diameter of locating shaft, when Height Standard part 9 is in measurement work
When making state, the bottom of survey mass is mutually adjacent to the inner ring end face of measured bearing 8, and the measurement height of Height Standard part 9 is what G referred to
It is the actual height of survey mass, the total height of Height Standard part 9 subtracts the difference of the axial length of locating shaft.Other steps and tool
Body embodiment one or two is identical.
Embodiment four：Illustrate in present embodiment, present embodiment base in the present invention with reference to Fig. 1, Fig. 2 and Fig. 3
The height dimension of quasi- sample circle 4 is identical with the outer ring height dimension of measured bearing 8, outside dimension and the measured bearing 8 of benchmark sample circle 4
Outside dimension is identical, and the hole size of benchmark sample circle 4 is identical with the hole size of measured bearing 8.
Embodiment five：Illustrate with reference to Fig. 1, Fig. 2 and Fig. 3 in present embodiment, present embodiment under benchmark sample circle 4
The convex-concave amount of the end face at end is zero, and the upper end end face of benchmark sample circle 4 and the roughness of lower end surface are not more than 0.25um, benchmark sample
The upper end end face of circle 4 and the depth of parallelism and flatness error of lower end surface are not more than 0.002mm, pass through repeatedly actual behaviour of the invention
Verify and understand, the upper end end face of benchmark sample circle 4 and the depth of parallelism and flatness error of lower end surface are smaller, and " 0 " position is to table
Precision is higher, and the degree of accuracy of measurement is also higher.
Following examples are illustrated according to advantages of the present invention：
Embodiment one：The outer ring height dimension of measured bearing 8 isOuter ring outside dimension isIt is interior
Enclosing hole size isAccording to design requirement, the measured bearing 8 is under the axially measured load of 100N, measured bearing 8
Inner ring should be no more than 10 ± 0.1mm relative to the depression value h of cycle surface.
Size and the size of benchmark sample circle 4 first respectively to Height Standard part 9 is tested：
The diameter dimension of the locating shaft of Height Standard part 9 is φ 19.8mm, and the height nominal dimension of Height Standard part 9 is
10mm, the outside dimension of Height Standard part 9 is identical with the outside dimension of the inner ring of measured bearing 8, and Height Standard part 9 glues with inner ring
Close surface and upper end surface roughness be not more than 0.25um, the depth of parallelism of Height Standard part 9 and flatness error are not more than 0.002mm,
And it is qualified through measurement verification；
The height nominal dimension of benchmark sample circle 4 is 22mm, and outside dimension is φ 38mm, and internal diameter size isPlus
Work grinding undercut size is designed according to easy to process, and the upper and lower ends surface roughness of benchmark sample circle 4 is not more than 0.25um, parallel
Degree and flatness error are not more than 0.002mm；
Calibration is zeroed：Instrument 2 is corrected using the benchmark sample circle in measuring instrument, benchmark sample circle 4 be installed first
In centration axis 5, then the centration axis 5 with benchmark sample circle 4 is placed on footstock 6, applies 100N axle to footstock 6
To measurement load, until when benchmark sample circle 4 is mutually adjacent to upper top packing ring 3, by the pointer regulation of instrument 2 on 0 position, finally
Measurement load is laid down, benchmark sample circle 4 and centration axis 5 is removed；
Measured bearing 8 is fixedly mounted in centration axis 5, the outer ring height dimension of measured bearing 8 isOuter ring
Outside dimension isInner ring hole size isHeight Standard part 9 is put into the endoporus of measured bearing 8
In, it is ensured that the bottom of Height Standard part 9 and the inner ring end face of measured bearing 8 are mutually adjacent to, now the top of Height Standard part 9 and quilt
It is δ to survey the distance between outer ring upper surface of bearing 8, and then the centration axis 5 with measured bearing 8 is placed on footstock 6,
Apply 100N axially measured load to footstock 6, until the upper surface of outer ring is adjacent in upper top packing ring 3 in measured bearing 8,
Observe on the pointer change of instrument 2, the pointer sensing -0.012mm positions of instrument 2, i.e. δ=- 0.012mm；
The measurement for measuring Height Standard part 9 is highly that G is 9.996mm, and the inner ring end face of measured bearing 8 is relative to outer ring end
The depression value h=9.996--0.012=10.008mm in face, the depression value according to the inner ring of measured bearing 8 relative to cycle surface
H should be no more than 10 ± 0.1mm design requirement, and the measurement result is qualified.
Claims (5)
1. a kind of measuring method for being precisely controlled bearing face depression value, it is characterised in that：The measuring method comprises the following steps：
Step one：Calibration is zeroed：Instrument (2) is corrected using the benchmark sample circle (4) in measuring instrument, first by benchmark sample
Enclose (4) to be arranged in centration axis (5), then the centration axis (5) with benchmark sample circle (4) is placed on footstock (6), to fixed
Heart seat (6) applies the measurement load of design requirement, until when benchmark sample circle (4) is mutually adjacent to upper top packing ring (3), by instrument (2)
Pointer regulation measurement load is laid down on 0 position, finally, remove benchmark sample circle (4) and centration axis (5)；
Step 2：The difference in measured bearing (8) between inner ring face height and outer ring upper surface height is set as depression value h,
The measurement of Height Standard part (9) is highly G, measured bearing (8) is fixedly mounted in centration axis (5), by Height Standard part (9)
In the endoporus for being put into measured bearing (8), it is ensured that the bottom of Height Standard part (9) and the inner ring end face of measured bearing (8) are mutually adjacent to,
Now the distance between the top of Height Standard part (9) and the outer ring upper surface of measured bearing (8) are δ, then will be with tested
The centration axis (5) of bearing (8) is placed on footstock (6), applies the measurement load of design requirement to footstock (6), until quilt
The upper surface for surveying outer ring in bearing (8) is adjacent at upper top packing ring (3), the pointer change of observation instrument (2), when instrument (2)
Pointer points to "+" direction, shows that the top of Height Standard part (9) is higher than the outer ring upper surface of measured bearing (8), therebetween
Distance is δ values；When the pointer of instrument (2) points to "-" direction, show that the top of Height Standard part (9) is less than measured bearing (8)
Outer ring upper surface, distance therebetween is δ values；
Step 3：The inner ring end face of measured bearing (8) relative to outer ring upper surface depression value h=G- δ, and by step 2
The "+" or "-" symbol for measuring δ are substituted into formula, so as to calculate depression value h.
2. a kind of measuring method for being precisely controlled bearing face depression value according to claim 1, it is characterised in that：The survey
Amount method also includes step 4, and step 4 is to calculate h values and the design standard progress pair of measured bearing (8) according to step 3
Than determining whether the depression value h of measured bearing (8) processes precisely.
3. a kind of measuring method for being precisely controlled bearing face depression value according to claim 1 or 2, it is characterised in that：
The lower end of Height Standard part (9) in step 2 is arranged in the endoporus of measured bearing (8), and the lower end of Height Standard part (9) adds
Work formation locating shaft, the interior interporal lacuna of locating shaft and measured bearing (8) coordinates, between locating shaft and the endoporus of measured bearing (8)
Fit clearance span be 0.15 to 0.3mm, the measurement height G of Height Standard part (9) nominal dimension should be with design
It is required that depression value h nominal dimension it is identical, the adhesive surface of the inner ring end face of Height Standard part (9) and measured bearing (8)
Roughness is not more than 0.25um, and the upper end surface roughness of Height Standard part (9) is not more than 0.25um, Height Standard part (9) it is flat
Row degree and flatness error are not more than 0.002mm.
4. a kind of measuring method for being precisely controlled bearing face depression value according to claim 3, it is characterised in that：Benchmark
The height dimension of sample circle (4) is identical with the outer ring height dimension of measured bearing (8), and the outside dimension of benchmark sample circle (4) is with being tested
Bearing (8) outside dimension is identical, and the hole size of benchmark sample circle (4) is identical with the hole size of measured bearing (8).
5. a kind of measuring method for being precisely controlled bearing face depression value according to claim 4, it is characterised in that：Benchmark
The convex-concave amount of sample circle (4) upper surface is zero, and the roughness of benchmark sample circle (4) upper surface is not more than 0.25um, benchmark sample (4) end face
The depth of parallelism and flatness error be not more than 0.002mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710523086.XA CN107144203A (en) | 2017-06-30 | 2017-06-30 | A kind of measuring method for being precisely controlled bearing face depression value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710523086.XA CN107144203A (en) | 2017-06-30 | 2017-06-30 | A kind of measuring method for being precisely controlled bearing face depression value |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107144203A true CN107144203A (en) | 2017-09-08 |
Family
ID=59785918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710523086.XA Pending CN107144203A (en) | 2017-06-30 | 2017-06-30 | A kind of measuring method for being precisely controlled bearing face depression value |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107144203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288874A (en) * | 2020-03-09 | 2020-06-16 | 徐州科源液压股份有限公司 | Method for detecting gap between primary central wheel and top shaft of planetary gear reducer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101393005A (en) * | 2008-10-30 | 2009-03-25 | 洛阳轴研科技股份有限公司 | Measurement method and apparatus for bearing protrusion amount under pre-loading no more than 10N |
| CN101476851A (en) * | 2009-01-16 | 2009-07-08 | 烟台轴承仪器有限公司 | Measuring instrument for projection of angular contact ball bearing |
| CN201297915Y (en) * | 2008-07-10 | 2009-08-26 | 浙江迪邦达轴承有限公司 | Bearing contact angle and convex amount comprehensive measuring instrument |
| CN201373723Y (en) * | 2009-02-11 | 2009-12-30 | 杭州人本大型轴承有限公司 | Convex amount measuring apparatus for bearing |
| CN101749993A (en) * | 2008-12-08 | 2010-06-23 | 哈尔滨轴承集团公司 | Detecting instrument for protruding and denting values of angular contact bearing |
| CN106595427A (en) * | 2016-12-15 | 2017-04-26 | 中航工业哈尔滨轴承有限公司 | Inner ring assembling protrusion amount detection method for double inner ring double row angular contact ball bearing |
-
2017
- 2017-06-30 CN CN201710523086.XA patent/CN107144203A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201297915Y (en) * | 2008-07-10 | 2009-08-26 | 浙江迪邦达轴承有限公司 | Bearing contact angle and convex amount comprehensive measuring instrument |
| CN101393005A (en) * | 2008-10-30 | 2009-03-25 | 洛阳轴研科技股份有限公司 | Measurement method and apparatus for bearing protrusion amount under pre-loading no more than 10N |
| CN101749993A (en) * | 2008-12-08 | 2010-06-23 | 哈尔滨轴承集团公司 | Detecting instrument for protruding and denting values of angular contact bearing |
| CN101476851A (en) * | 2009-01-16 | 2009-07-08 | 烟台轴承仪器有限公司 | Measuring instrument for projection of angular contact ball bearing |
| CN201373723Y (en) * | 2009-02-11 | 2009-12-30 | 杭州人本大型轴承有限公司 | Convex amount measuring apparatus for bearing |
| CN106595427A (en) * | 2016-12-15 | 2017-04-26 | 中航工业哈尔滨轴承有限公司 | Inner ring assembling protrusion amount detection method for double inner ring double row angular contact ball bearing |
Non-Patent Citations (1)
| Title |
|---|
| 孙怀全 等: "双内圈双列角接触球轴承轴向游隙的精确控制", 《轴承》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288874A (en) * | 2020-03-09 | 2020-06-16 | 徐州科源液压股份有限公司 | Method for detecting gap between primary central wheel and top shaft of planetary gear reducer |
| CN111288874B (en) * | 2020-03-09 | 2021-11-02 | 徐州科源液压股份有限公司 | Method for detecting gap between primary central wheel and top shaft of planetary gear reducer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102303266A (en) | Special protractor for taper hole | |
| CN103759612B (en) | Transmission spline taper hole measurement gauge | |
| CN104457578A (en) | Air flotation high-precision detection tool | |
| CN107990803A (en) | Screw thread hole position detection device | |
| CN107796284A (en) | A kind of measuring tool and measuring method of end face V-groove depth | |
| CN107144203A (en) | A kind of measuring method for being precisely controlled bearing face depression value | |
| CN210862484U (en) | Concave-convex table measuring tool for spigot | |
| CN202393323U (en) | Working ring gauge for measuring cone | |
| CN203672273U (en) | Transmission spline taper hole measuring gauge | |
| CN104296628B (en) | One kind measurement valve discone antenna height cubing | |
| CN106767315B (en) | A kind of cubing of center distance between holes | |
| CN110044228A (en) | A kind of more cone deep hole detection devices of high-precision and detection method | |
| CN105180779A (en) | Instrument and method for measuring angle deviation between inner and outer raceways of ferrule of integrated intersected cylindrical roller bearing | |
| CN206944865U (en) | A kind of go-no go gauge detection means for being used to detect inner bore of part | |
| CN107782220A (en) | A kind of fast precise sealing cone axial dimension measurement apparatus | |
| JPWO2010021046A1 (en) | Crowning measuring apparatus and crowning measuring method using the same | |
| CN204346332U (en) | Bevel gear tooth thickness measurement mechanism | |
| CN109724497B (en) | Method for online detecting radius value of inner sphere | |
| CN106370080A (en) | Novel device for measuring size of outer chamfer | |
| CN207730130U (en) | A kind of wind power bearing mounting hole accuracy detecting device | |
| CN107894202A (en) | Wind power bearing mounting hole accuracy detecting device and method | |
| CN205940387U (en) | Utensil is examined to special measurement of annular diameter in part | |
| CN204963758U (en) | Inside and outside raceway angular discrepancy's of split type cross cylindrical roller bearing lasso measuring instrument | |
| CN105222663B (en) | A kind of smooth surface feeler gauge and its design method for measuring imperfect hole | |
| CN204730774U (en) | A kind of axle draw-in groove detection drift and no-go gage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170908 |
|
| WD01 | Invention patent application deemed withdrawn after publication |