CN107621215A - Pin shaft fillet measuring method and the measuring instrument using this method - Google Patents
Pin shaft fillet measuring method and the measuring instrument using this method Download PDFInfo
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- CN107621215A CN107621215A CN201710916424.6A CN201710916424A CN107621215A CN 107621215 A CN107621215 A CN 107621215A CN 201710916424 A CN201710916424 A CN 201710916424A CN 107621215 A CN107621215 A CN 107621215A
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- axle
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 45
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
A kind of measuring instrument the invention discloses pin shaft fillet measuring method and using this method, using the measurer with metering hole, the aperture of the metering hole is stretched into for bearing pin round end to be measured and is interference fitted with the bearing pin axle body to be measured, the displacement of the metering hole is stretched into obtain fillet numerical value by measuring the bearing pin round end to be measured, and the displacement has predetermined conversion relation with fillet.Pin shaft fillet measuring instrument, including pedestal, gear train, rack spring system, hole gauge, connector and displacement measuring device.Pin shaft fillet quickly can accurately be measured by the measuring method and the measuring instrument.
Description
Technical field
The present invention relates to contact type measurement technical field, more particularly, to pin shaft fillet measuring method and using this method
Measuring instrument.
Background technology
In machinery industry, axis hole interference fit typically may require that bearing pin has using extensively in over-surplus fit structure design
Rational R angles (pin shaft fillet i.e. mentioned herein).In actual production, whether bearing pin R angles are qualified directly in assembly process
The complexity and assembling quality of assembling are influenceed, and how quickly to judge whether bearing pin R angles reach the measurement of design requirement at present
Instrument is mainly slide measure and R rule.Slide measure can measure minimum and maximum diameter at bearing pin R angles, and this method is due to people
Member's influence factor is too big and measurement accuracy is not high；It can be determined that whether bearing pin R angles reach based on the R rule that R corner contours are worked it out to set
Meter requires, but can not accurately measure the actual value at R angles.
The content of the invention
In view of the shortcomings of the prior art, technical problem to be solved is to provide a kind of pin shaft fillet measuring method to the present invention
And the measuring instrument using this method, pin shaft fillet quickly can accurately be measured by the measuring method and the measuring instrument.
The present invention is to be addressed above-mentioned technical problem by the following technical programs.
Pin shaft fillet measuring method, using the measurer with metering hole, the aperture of the metering hole supplies bearing pin round end to be measured
Stretch into and be interference fitted with the bearing pin axle body to be measured, the displacement of the metering hole is stretched into by measuring the bearing pin round end to be measured
Measure to obtain fillet numerical value, the displacement has predetermined conversion relation with fillet.
The measuring method combines the advantages of slide measure and R rule, while realizing quick measurement, can obtain accurate
Measured value.
Pin shaft fillet measuring instrument, including pedestal, gear train, rack spring system, hole gauge, connector and displacement measurement dress
Put, the gear train and hole gauge positioning are installed on the pedestal, the rack spring system and the gear train
The straight-line displacement of rack is cooperatively formed by rack and pinion engagement transmission, the connector is equipped with the rack and keeps synchronous
Displacement, the connector are provided with the crimp head being engaged with bearing pin to be measured, and the hole gauge is provided with to be stretched for the bearing pin round end to be measured
The metering hole for entering and being interference fitted with the bearing pin axle body to be measured, the rack spring system is the connection by preloading spring
Device, which provides initial tension of spring, to be made the crimp head under non-measured state through the metering hole and is held in position, and measures fillet
When, the bearing pin round end to be measured pushes the crimp head and the bearing pin round end to be measured is stretched into the metering hole, passes through displacement
Measurement apparatus measures the straight-line displacement amount of the rack and obtains circle by the conversion relation of predetermined straight-line displacement amount and fillet
Angle numerical value.
Preferably, the hole gauge is provided with shoulder hole, the shoulder hole includes patchhole and the metering hole, the insertion
Hole coordinates with the bearing pin axle body to be measured for gap.
Preferably, the pedestal is provided with the guide groove being engaged with the connector.
Preferably, the connector is three sections of Step Shafts, left section of axle forms the crimp head, right section of axle and the rack
Connection, the diameter of axle of stage casing axle are more than the aperture of the metering hole, under non-measured state, the spring that is provided by the preloading spring
Pretightning force makes the left side shoulder of the stage casing axle, and positioned at the end face of the metering hole homonymy, positioning reclines with the hole gauge.
Preferably, the right section of axle is to be threadedly coupled with the rack.
Formed preferably, the hole gauge is that two split components are equipped.
Preferably, pointer compass of institute's displacement measurement device for measurement angular displacement, the gear train is equipped described
Pointer compass, by obtaining straight-line displacement amount of the pointer compass reading through the predetermined conversion relation acquisition rack.
Sum it up, the pin shaft fillet measuring instrument of the present invention is using contact type measurement design, can will be micro- by gear train
Small rack linear displacement equations overcome common calliper and measured with R rule into the compass needle reading that can be obtained easily
The shortcomings of inaccurate, the fillet size of bearing pin more can be accurately measured, the present invention is advantageous to improve machinery industry axis hole mistake
It is full of the assembling quality of cooperation.
Brief description of the drawings
It is intended to be easy to describe preferred embodiment in conjunction with the following drawings, does not form limiting the scope of the invention.
Fig. 1 is the principle schematic of pin shaft fillet measuring method of the present invention；
Fig. 2 is the structural representation of pin shaft fillet measuring instrument embodiment of the present invention；
Fig. 3 is the partial enlargement structural representation at A in Fig. 2.
In figure：1- pedestals, 2- gear trains, 3- rack spring systems, 4- hole gauges, 5- connectors, 6- bearing pins to be measured, 7- rollings
Son.
Embodiment
In order to facilitate the present invention is understood, below in conjunction with the accompanying drawings in the preferred embodiment of the invention that provides the present invention is entered
The detailed description of row.
Such as the embodiment principle schematic of Fig. 1 pin shaft fillet measuring methods of the present invention, the measurer with metering hole is internal diameter
The roller 7 of determination, the axle body of bearing pin 6 to be measured are formed with roller 7 and are interference fitted, the left circles head contour of bearing pin 6 to be measured and the right side of roller 7
Endoporus sideline contacts, based on the difference of the round end fillet of bearing pin 6 (R angles i.e. referred to herein) to be measured, the left side round end of bearing pin 6 to be measured
End face such as the change in displacement between L1 and L2, displacement occurs to the distance of the left end face of roller 7 has predetermined change with fillet
Calculation relation (this operation relation can pass through advance computing and set), thus measurement pin shaft fillet (R angles) size can be changed into
Measure the numerical value of displacement.
The pin shaft fillet measuring instrument of the embodiment of the present invention as shown in Figure 2, including pedestal 1, gear train 2, rack spring system
System 3, hole gauge 4, connector 5 and displacement measuring device.
The gear train 2 and the positioning of the hole gauge 4 are installed on the pedestal 1, the gear train 2 and the pedestal
1 connected mode has a variety of, and the same or similar all designs of function are belonged in protection scope of the present invention.The tooth
Bar spring system 3 cooperatively forms the straight-line displacement of rack, the gear with the gear train 2 by rack and pinion engagement transmission
A variety of different structure designs, the same or similar all designs of function be present from the rack spring system 3 in system 2
Belong in protection scope of the present invention.
The measurement function that the hole gauge 4 is realized is identical with the measuring principle of the roller 7.The hole gauge 4 is provided with described in confession
The metering hole that the round end of bearing pin 6 to be measured is stretched into and is interference fitted with the axle body of bearing pin 6 to be measured.
The connector 5 and the rack be equipped with and keep synchronous shift, may be selected on the pedestal 1 setting with it is described
The guide groove that connector 5 is engaged, aid in the connector 5 to realize and accurately orient displacement, the connector 5 be provided with it is to be measured
The crimp head that bearing pin 6 is engaged.The rack spring system 3 is that the connector 5 provides initial tension of spring by preloading spring
Make the crimp head under non-measured state through the metering hole and be held in position.
When measuring fillet, the round end of bearing pin 6 to be measured pushes the crimp head and the round end of bearing pin to be measured 6 is stretched into institute
Metering hole is stated, the straight-line displacement amount of the rack is measured and by predetermined straight-line displacement amount and fillet by displacement measuring device
Conversion relation obtain fillet numerical value.
Institute's displacement measurement device can be the pointer compass for measuring angular displacement, and the gear train 2 is equipped with the pointer
Compass, by obtaining straight-line displacement amount of the pointer compass reading through the predetermined conversion relation acquisition rack.Such as by
Can be passed to the gear train 2 in the micro-displacement of the rack, the multi-stage gear in the gear train 2 can will described in
The small straight-line displacement of rack is enlarged into the rotational angle (turnning circle) of extreme gear, the pointer compass reading and the tooth
The mathematical relationship determined be present in bar displacement.If the measurement by magnification of the small straight-line displacement for the rack uses high precision position
Displacement sensor replaces, also within the scope of the present invention.
As shown in figure 3, the hole gauge 4 in the present embodiment is provided with shoulder hole, the shoulder hole includes patchhole and institute
Metering hole is stated, the patchhole coordinates with the axle body of bearing pin 6 to be measured for gap, and mistake proofing work is not only played to bearing pin model to be measured
With, and ensure that the bearing pin to be measured 6 smoothly inserts, improve measurement accuracy.The shoulder hole is unappeasable in processing technology
In the case of, the hole gauge 4 can be arranged to two split components to reduce difficulty of processing, then ensured by assembly technology same
The requirement of axle degree, the technical scheme is also in the scope of the present invention.
Such as one embodiment of the connector 5 in Fig. 2, the connector 5 is three sections of Step Shafts, and left section of axle forms institute
Crimp head is stated, right section of axle is connected with the rack, and the right section of axle can be used with the rack and be threadedly coupled, and can also use interference
The other manners such as cooperation are replaced and belonged in protection scope of the present invention.The diameter of axle of stage casing axle is more than the hole of the metering hole
Footpath, under non-measured state, the initial tension of spring that is provided by the preloading spring make the left side shoulder of the stage casing axle with it is described
The positioning positioned at the end face of the metering hole homonymy of hole gauge 4 reclines.
With reference to Fig. 2 in particular, hole of the diameter of axle of the stage casing axle much larger than the metering hole on the right side of hole gauge 4
Footpath, the preloading spring in the rack spring system 3 keep the spring force to the left of normality to the connector 5, not had
Under conditions of bearing pin 6 to be measured inserts, the work of its right end face of the left side shoulder of the connector 5 and the hole gauge 4 in spring force
It is adjacent to lower positioning, is inserted in bearing pin 6 to be measured and inserted in the hole described in the hole gauge 4 and the connector 5 is formed to the right
Thrust, when thrust is more than the spring force then displacement to the right of connector 5, until the R corner contours of bearing pin 6 to be measured and the hole gauge 4
In the metering hole left side linear contact lay, bearing pin 6 to be measured can not displacement to the right again, now the connector 5 also no longer to
Right displacement, compass needle reading is now read, R angles size is determined by shift value.As one embodiment, it is seen that following attached
Displacement and the R angles table of comparisons shown in table one.
Subordinate list one
Some technical terms used in the present invention are intended merely to facilitate description, are not construed as limiting the invention,
The present invention is not limited to above-described preferable embodiment, the public affairs that can be known based on those skilled in the art
Know technology or use and be capable of the various modifications of equivalence replacement and the embodiment of change in the prior art, it is every to be based on this hair
Bright spirit or technical concept, should be included in the scope of the protection.
Claims (8)
1. pin shaft fillet measuring method, it is characterized in that：Using the measurer with metering hole, the aperture of the metering hole supplies pin to be measured
Axle round end is stretched into and is interference fitted with the bearing pin axle body to be measured, and the metering hole is stretched into by measuring the bearing pin round end to be measured
Displacement obtain fillet numerical value, the displacement has predetermined conversion relation with fillet.
2. pin shaft fillet measuring instrument, it is characterized in that：Including pedestal, gear train, rack spring system, hole gauge, connector and position
Measuring system, the gear train and the hole gauge positioning be installed on the pedestal, the rack spring system with it is described
Gear train cooperatively forms the straight-line displacement of rack by rack and pinion engagement transmission, and the connector is equipped simultaneously with the rack
Synchronous shift is kept, the connector is provided with the crimp head being engaged with bearing pin to be measured, and the hole gauge, which is provided with, supplies the pin to be measured
Axle round end stretches into and is by preloading spring with the metering hole of the bearing pin axle body interference fit to be measured, the rack spring system
The connector, which provides initial tension of spring, to be made the crimp head under non-measured state through the metering hole and is held in position, and is surveyed
When measuring fillet, the bearing pin round end to be measured pushes the crimp head and the bearing pin round end to be measured is stretched into the metering hole, leads to
Cross displacement measuring device and measure the straight-line displacement amount of the rack and by the conversion relation of predetermined straight-line displacement amount and fillet
Obtain fillet numerical value.
3. pin shaft fillet measuring instrument according to claim 2, it is characterized in that：The hole gauge is provided with shoulder hole, the ladder
Hole includes patchhole and the metering hole, and the patchhole coordinates with the bearing pin axle body to be measured for gap.
4. pin shaft fillet measuring instrument according to claim 2, it is characterized in that：The pedestal is provided with to match with the connector
The guide groove of conjunction.
5. pin shaft fillet measuring instrument according to claim 2, it is characterized in that：The connector is three sections of Step Shafts, left section
Axle forms the crimp head, and right section of axle is connected with the rack, and the diameter of axle of stage casing axle is more than the aperture of the metering hole, non-measured
Under state, the initial tension of spring provided by the preloading spring makes the left side shoulder of the stage casing axle and being located at for the hole gauge
The end face positioning of the metering hole homonymy reclines.
6. pin shaft fillet measuring instrument according to claim 5, it is characterized in that：The right section of axle connects with the rack for screw thread
Connect.
7. pin shaft fillet measuring instrument according to claim 2, it is characterized in that：The hole gauge be two split components it is equipped and
Into.
8. pin shaft fillet measuring instrument according to claim 2, it is characterized in that：Institute's displacement measurement device is measurement angular displacement
Pointer compass, the gear train is equipped with the pointer compass, by obtaining the pointer compass reading through predetermined conversion
The straight-line displacement amount of rack described in Relation acquisition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710916424.6A CN107621215B (en) | 2017-09-30 | 2017-09-30 | Pin shaft fillet measuring method and measuring instrument adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710916424.6A CN107621215B (en) | 2017-09-30 | 2017-09-30 | Pin shaft fillet measuring method and measuring instrument adopting same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107621215A true CN107621215A (en) | 2018-01-23 |
| CN107621215B CN107621215B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710916424.6A Active CN107621215B (en) | 2017-09-30 | 2017-09-30 | Pin shaft fillet measuring method and measuring instrument adopting same |
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| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2754058Y (en) * | 2004-11-10 | 2006-01-25 | 东风汽车有限公司 | Angle measuring device |
| CN101413777A (en) * | 2008-10-30 | 2009-04-22 | 洛阳轴研科技股份有限公司 | Method and apparatus for detecting miniature bearing ferrule 45 degrees inner chamfer angle rapidly and accurately |
| CN201765736U (en) * | 2010-03-04 | 2011-03-16 | 天津市天堰医教科技开发有限公司 | External chest compression depth detection structure |
| CN103353272A (en) * | 2013-06-14 | 2013-10-16 | 浙江万达汽车方向机有限公司 | Tool and method for measuring angle of relative position of bevel gear |
| KR101651504B1 (en) * | 2015-06-19 | 2016-08-29 | 윤흡 | measuring device radious of curvature and minor diameter of underground pipeline |
| CN206247984U (en) * | 2016-12-22 | 2017-06-13 | 东风(武汉)实业有限公司 | A kind of Automobile Parts Inspection device |
| CN207407791U (en) * | 2017-09-30 | 2018-05-25 | 杭州东华链条集团有限公司 | Pin shaft fillet measuring instrument |
-
2017
- 2017-09-30 CN CN201710916424.6A patent/CN107621215B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2754058Y (en) * | 2004-11-10 | 2006-01-25 | 东风汽车有限公司 | Angle measuring device |
| CN101413777A (en) * | 2008-10-30 | 2009-04-22 | 洛阳轴研科技股份有限公司 | Method and apparatus for detecting miniature bearing ferrule 45 degrees inner chamfer angle rapidly and accurately |
| CN201765736U (en) * | 2010-03-04 | 2011-03-16 | 天津市天堰医教科技开发有限公司 | External chest compression depth detection structure |
| CN103353272A (en) * | 2013-06-14 | 2013-10-16 | 浙江万达汽车方向机有限公司 | Tool and method for measuring angle of relative position of bevel gear |
| KR101651504B1 (en) * | 2015-06-19 | 2016-08-29 | 윤흡 | measuring device radious of curvature and minor diameter of underground pipeline |
| CN206247984U (en) * | 2016-12-22 | 2017-06-13 | 东风(武汉)实业有限公司 | A kind of Automobile Parts Inspection device |
| CN207407791U (en) * | 2017-09-30 | 2018-05-25 | 杭州东华链条集团有限公司 | Pin shaft fillet measuring instrument |
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| Publication number | Publication date |
|---|---|
| CN107621215B (en) | 2024-06-07 |
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