CN106949803A - A kind of flexible floating measurement apparatus - Google Patents

A kind of flexible floating measurement apparatus Download PDF

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Publication number
CN106949803A
CN106949803A CN201710258248.1A CN201710258248A CN106949803A CN 106949803 A CN106949803 A CN 106949803A CN 201710258248 A CN201710258248 A CN 201710258248A CN 106949803 A CN106949803 A CN 106949803A
Authority
CN
China
Prior art keywords
retainer
buoyancy body
measurement apparatus
rolling element
flexible floating
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.)
Granted
Application number
CN201710258248.1A
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Chinese (zh)
Other versions
CN106949803B (en
Inventor
张全
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Pfl Precision Measuring Instruments Co Ltd
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Suzhou Pfl Precision Measuring Instruments Co Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Suzhou Pfl Precision Measuring Instruments Co Ltd filed Critical Suzhou Pfl Precision Measuring Instruments Co Ltd
Priority to CN201710258248.1A priority Critical patent/CN106949803B/en
Publication of CN106949803A publication Critical patent/CN106949803A/en
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Publication of CN106949803B publication Critical patent/CN106949803B/en
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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0002Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B33/00Honing machines or devices; Accessories therefor
    • B24B33/02Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B33/00Honing machines or devices; Accessories therefor
    • B24B33/10Accessories

Abstract

The invention discloses a kind of flexible floating measurement apparatus, it includes floatation element and the plug jet being arranged on the floatation element, and the floatation element includes:Base, the buoyancy body being arranged on the base, make rolling element that the buoyancy body is in rolling contact, make the retainer of the rolling element automatic centering, the buoyancy body is fixed on mechanical frock by the base, the buoyancy body at least includes double-layer structure, the retainer is arranged between double-layer structure, the rolling element is equipped between the retainer and double-layer structure, the rolling element is divided into two layers by the retainer, and the retainer is by rolling element automatic centering described in two layers.The measurement apparatus of the present invention is using flexible relocation mechanism, it is sufficient to cover the position error of most part so that measuring mechanism or skiving mechanism smoothly enter in endoporus.

Description

A kind of flexible floating measurement apparatus
Technical field
The present invention relates to Technology of Precision Measurement field, and in particular to a kind of flexible floating measurement apparatus.
Background technology
When automatic measurement or automatic grinding are applied, it is big to be frequently encountered part positioning error, but need to measure or The bearing tolerances of person's grinding are minimum, and the gap of tolerance is small when also having led to measuring or being ground gauge head and part is small.Due to zero There is larger position error in part, cause gauge head or bistrique not to enter in endoporus smoothly quickly, it is impossible to realize automatic survey Amount or automatic grinding.
The content of the invention
It is an object of the invention to overcome the problem above that prior art is present there is provided a kind of flexible floating measurement apparatus, The measurement apparatus of the present invention is using flexible relocation mechanism, it is sufficient to cover the position error of most part so that measuring mechanism Or skiving mechanism smoothly enters in endoporus.
To realize above-mentioned technical purpose, above-mentioned technique effect is reached, the present invention is achieved through the following technical solutions:
A kind of flexible floating measurement apparatus, it includes floatation element and the plug jet being arranged on the floatation element, The floatation element includes:Base, the buoyancy body being arranged on the base, make rolling element that the buoyancy body is in rolling contact, Make the retainer of the rolling element automatic centering, the buoyancy body is fixed on mechanical frock by the base, the buoyancy body At least include double-layer structure, the retainer is arranged between double-layer structure, is equipped between the retainer and double-layer structure The rolling element, the rolling element is divided into two layers by the retainer, and the retainer is by rolling element automatic centering described in two layers;
One Rotating fields of the buoyancy body are fixed on the base, and another Rotating fields of the buoyancy body are fixed on described On plug jet, after the rolling element is by the retainer automatic centering, the rolling element makes two layers of knot of the buoyancy body Structure is in rolling contact, and realizes the double-layer structure automatic floating of the buoyancy body, the buoyancy body drive the plug jet with it is to be checked Survey workpiece coaxial.
Preferably, also including the outer ring for fixing the buoyancy body, the outer ring is arranged on the buoyancy body, retainer Periphery.
Preferably, the plug jet includes:Columned body, the inside of the body is hollow channel, described One free end of body is secured in the buoyancy body, and another free end of the body is provided with a circular hole, is floated close to described Gas circuit connector is provided with the position of body, the body wall of the body is provided with least one valve.
Preferably, the valve is arranged on the body wall of the body at equal intervals.
Preferably, the valve is arranged at the position of the nearly circular hole.
Preferably, the retainer is annulus laminated structure, and the retainer is provided with some to heart hole, the rolling element By described to heart hole automatic centering.
Preferably, it is described to heart hole spaced set.
Preferably, the external diameter of the retainer is more than the external diameter of the buoyancy body.
Preferably, also including protective cover, the protective cover is set on the floatation element.
The beneficial effects of the invention are as follows:
This flexible relocation mechanism is applied in the present invention, amount of floating is up to 0.5mm, it is sufficient to which the part of the covering overwhelming majority is determined Position error so that measuring mechanism or grinding mechanism smoothly enter in endoporus.The superhigh precision rolling element of this mechanism application simultaneously Axial gap is eliminated, superhigh precision rotary body only has small circular runout, smoothly can entered in minim gap aperture, realized high Precision endoporus automatic measurement.This mechanism can also be applied simultaneously in vertical honing machine, realize endoporus automatic grinding.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after. The embodiment of the present invention is shown in detail by following examples and its accompanying drawing.
Brief description of the drawings
Technical scheme in technology in order to illustrate more clearly the embodiments of the present invention, in being described below to embodiment technology The required accompanying drawing used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present invention Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings Obtain other accompanying drawings.
Fig. 1 is the structural representation of the present invention;
Fig. 2 is Fig. 1 sectional view;
Fig. 3 is the structural representation that the present invention installs protective cover additional;
Fig. 4 is the sectional view of floatation element part of the present invention;
Wherein, 1- floatation elements, 2- plug jets, 101- bases, 102- buoyancy bodies, 103- retainers, 104- to heart hole, 105- rolling elements, 106- outer rings, 107- protective covers, 201- bodies, 202- plays road connector, 203- valves.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Embodiment
A kind of flexible floating measurement apparatus is disclosed shown in reference picture 1-4, in the present embodiment, the device mainly has floating group Part 1 and the plug jet 2 being arranged on floatation element 1, and for protecting the protective cover 107 of above-mentioned floatation element 1.
Specifically, above-mentioned floatation element 1 includes:Base 101, the buoyancy body 102 being arranged on above-mentioned base 101, make State rolling element 105 that buoyancy body 102 is in rolling contact, make the retainer 103 of the above-mentioned automatic centering of rolling element 105, for fixation The outer ring 106 of buoyancy body 102 is stated, above-mentioned outer ring 106 is arranged on above-mentioned buoyancy body 102, the periphery of retainer 103.
Above-mentioned buoyancy body 105 is fixed on mechanical frock by above-mentioned base 101, and above-mentioned buoyancy body 105 at least includes two layers Structure, above-mentioned retainer 103 is arranged between double-layer structure, and above-mentioned rolling is equipped between above-mentioned retainer 103 and double-layer structure Kinetoplast 105, above-mentioned rolling element 105 is divided into two layers by above-mentioned retainer 103, and above-mentioned retainer 103 is by two layers of above-mentioned rolling element 105 Automatic centering.
Above-mentioned retainer 103 is annulus laminated structure, and the external diameter of above-mentioned retainer 103 is more than the outer of above-mentioned buoyancy body 102 Footpath, above-mentioned retainer 103 is provided with some to heart hole 104, and above-mentioned rolling element 105 is by above-mentioned to the automatic centering of heart hole 104.
Further, it is above-mentioned to the spaced set of heart hole 104.
The flexible floating principle of above-mentioned floatation element:One Rotating fields of above-mentioned buoyancy body 102 are fixed on above-mentioned base 101 On, another Rotating fields of above-mentioned buoyancy body 102 are fixed on above-mentioned plug jet 2, and above-mentioned rolling element 105 passes through above-mentioned retainer After 103 automatic centerings, above-mentioned rolling element 105 is in rolling contact the double-layer structure of above-mentioned buoyancy body 102, realizes above-mentioned buoyancy body 105 double-layer structure automatic floating, above-mentioned buoyancy body 105 drives above-mentioned plug jet 2 and workpiece to be detected coaxial.
In the present embodiment, above-mentioned rolling element 105 can be steel ball.
Above-mentioned plug jet 2 includes:Columned body 201, the inside of above-mentioned body 201 is hollow channel, above-mentioned One free end of body 201 is secured in above-mentioned buoyancy body 102, and another free end of above-mentioned body 201 is provided with a circular hole 204, Gas circuit connector 202 is provided with the position of above-mentioned buoyancy body 102, the body wall of above-mentioned body 201 is provided with least one gas Mouth 203.
Further, above-mentioned valve 203 is arranged on the body wall of above-mentioned body 201 at equal intervals.Above-mentioned valve 203 is set At the position of nearly above-mentioned circular hole 204.
Using this flexible relocation mechanism, amount of floating is up to 0.5mm, it is sufficient to the part positioning error of the covering overwhelming majority, makes Measuring mechanism or grinding mechanism is obtained smoothly to enter in endoporus.The superhigh precision rolling element of this mechanism application simultaneously is eliminated between axial direction Gap, superhigh precision rotary body only has small circular runout, smoothly can enter in minim gap aperture, realizes high precision inner-pore certainly Dynamic measurement.This mechanism can also be applied simultaneously in vertical honing machine, realize endoporus automatic grinding.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention. A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one The most wide scope caused.

Claims (9)

1. a kind of flexible floating measurement apparatus, it includes floatation element and the plug jet being arranged on the floatation element, its It is characterised by, the floatation element includes:Base, the buoyancy body being arranged on the base, it is in rolling contact the buoyancy body Rolling element, make the retainer of the rolling element automatic centering, the buoyancy body is fixed on mechanical frock by the base, institute Stating buoyancy body at least includes double-layer structure, and the retainer is arranged between double-layer structure, the retainer and double-layer structure it Between be equipped with the rolling element, the rolling element is divided into two layers by the retainer, and the retainer is by rolling element described in two layers Automatic centering;
One Rotating fields of the buoyancy body are fixed on the base, and another Rotating fields of the buoyancy body are fixed on described pneumatic On gauge head, after the rolling element is by the retainer automatic centering, the rolling element rolls the double-layer structure of the buoyancy body Dynamic contact, realizes the double-layer structure automatic floating of the buoyancy body, and the buoyancy body drives the plug jet and work to be detected Part is coaxial.
2. flexible floating measurement apparatus according to claim 1, it is characterised in that also including for fixing the buoyancy body Outer ring, the outer ring is arranged on the buoyancy body, the periphery of retainer.
3. flexible floating measurement apparatus according to claim 1, it is characterised in that the plug jet includes:It is cylindric Body, the inside of the body is hollow channel, and a free end of the body is secured in the buoyancy body, the body Another free end be provided with a circular hole, close to the buoyancy body position at be provided with gas circuit connector, the body wall of the body It is provided with least one valve.
4. flexible floating measurement apparatus according to claim 3, it is characterised in that the valve is arranged on institute at equal intervals State on the body wall of body.
5. flexible floating measurement apparatus according to claim 4, it is characterised in that the valve is arranged on the nearly circular hole Position at.
6. flexible floating measurement apparatus according to claim 1, it is characterised in that the retainer is annulus sheet knot Structure, the retainer is provided with some to heart hole, and the rolling element is by described to heart hole automatic centering.
7. flexible floating measurement apparatus according to claim 6, it is characterised in that described to heart hole spaced set.
8. the flexible floating measurement apparatus according to claim 1 or 7, it is characterised in that the external diameter of the retainer is more than The external diameter of the buoyancy body.
9. flexible floating measurement apparatus according to claim 1, it is characterised in that also including protective cover, the protective cover It is set on the floatation element.
CN201710258248.1A 2017-04-19 2017-04-19 Flexible floating measurement device Active CN106949803B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201710258248.1A CN106949803B (en) 2017-04-19 2017-04-19 Flexible floating measurement device

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CN106949803B CN106949803B (en) 2023-09-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108225156A (en) * 2018-03-07 2018-06-29 埃恩精工无锡有限公司 Gauge head floating measuring mechanism
CN108303003A (en) * 2018-01-09 2018-07-20 无锡富瑞德测控仪器股份有限公司 A kind of relocation mechanism measured for cylinder holes

Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106206A (en) * 1977-04-25 1978-08-15 The United States Of America As Represented By The Secretary Of The Navy Positively expandable and retractable thread measuring gage
CN87207474U (en) * 1987-09-08 1988-04-20 铁道部戚墅堰机车车辆工艺研究所 Aperture floating measuring head
JPH0814871A (en) * 1994-06-30 1996-01-19 Tokyo Seimitsu Co Ltd Pneumatic micrometer device
JP2000292107A (en) * 1999-03-31 2000-10-20 Kawaguchiko Seimitsu Co Ltd Automatic-sizing head
JP2003114110A (en) * 2001-10-05 2003-04-18 Tokyo Seimitsu Co Ltd Inner diameter measuring device
CN101745799A (en) * 2009-12-18 2010-06-23 安徽江淮汽车股份有限公司 Pressing and mounting device for pressing and mounting thin-wall sleeve
CN101918791A (en) * 2008-01-21 2010-12-15 三菱重工业株式会社 Measuring head for air micrometer
US20120074975A1 (en) * 2010-09-23 2012-03-29 Detofsky Abram M Micro positioning test socket and methods for active precision alignment and co-planarity feedback
CN103089836A (en) * 2012-12-27 2013-05-08 大连东方专用机床有限公司 Precise floating joint device
CN203053405U (en) * 2013-01-22 2013-07-10 北京工业大学 Rapid gear single error field measuring device based on double-face engagement
CN103203683A (en) * 2013-03-13 2013-07-17 大连理工大学 Float polishing head
CN103244363A (en) * 2013-05-03 2013-08-14 广东明阳风电产业集团有限公司 Device and method for centering wind power generator spindle and gearbox shaft expansion sleeve
CN203414063U (en) * 2013-08-12 2014-01-29 浙江万丰科技开发有限公司 Floating detecting device of pneumatic measuring device
US20140096629A1 (en) * 2012-10-09 2014-04-10 Xerox Corporation Elastomeric parallel stage with flexural hinges to provide multi-degree-of-freedom sensitivity of an aerodynamically floated probe head to disturbance in 3d space
CN204188128U (en) * 2014-09-18 2015-03-04 福建兵工装备有限公司 A kind of floating type coaxality measuring mechanism
CN104526527A (en) * 2015-01-08 2015-04-22 浙江畅尔智能装备股份有限公司 Flexible polishing tool based on pneumatic floating
CN204397436U (en) * 2015-01-20 2015-06-17 杨胜军 A kind of numerical control mill Pneumatic floating clamping device
CN104759875A (en) * 2014-01-03 2015-07-08 山东双轮韬浦泵业有限公司 Horizontal centring measuring device and method for assembly of sliding bearing
CN105058239A (en) * 2015-08-05 2015-11-18 浙江瑞宏机器人有限公司 Reciprocating floating head device
CN204942444U (en) * 2015-09-09 2016-01-06 深圳市宏伟自动化设备有限公司 A kind of plane captive nut seat
CN206047530U (en) * 2016-08-31 2017-03-29 昆山市烽禾升精密机械有限公司 A kind of self adaptation centering floating pressure heads mechanism
CN206638114U (en) * 2017-04-19 2017-11-14 苏州普费勒精密量仪有限公司 A kind of flexible floating measurement apparatus

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106206A (en) * 1977-04-25 1978-08-15 The United States Of America As Represented By The Secretary Of The Navy Positively expandable and retractable thread measuring gage
CN87207474U (en) * 1987-09-08 1988-04-20 铁道部戚墅堰机车车辆工艺研究所 Aperture floating measuring head
JPH0814871A (en) * 1994-06-30 1996-01-19 Tokyo Seimitsu Co Ltd Pneumatic micrometer device
JP2000292107A (en) * 1999-03-31 2000-10-20 Kawaguchiko Seimitsu Co Ltd Automatic-sizing head
JP2003114110A (en) * 2001-10-05 2003-04-18 Tokyo Seimitsu Co Ltd Inner diameter measuring device
CN101918791A (en) * 2008-01-21 2010-12-15 三菱重工业株式会社 Measuring head for air micrometer
CN101745799A (en) * 2009-12-18 2010-06-23 安徽江淮汽车股份有限公司 Pressing and mounting device for pressing and mounting thin-wall sleeve
US20120074975A1 (en) * 2010-09-23 2012-03-29 Detofsky Abram M Micro positioning test socket and methods for active precision alignment and co-planarity feedback
US20140096629A1 (en) * 2012-10-09 2014-04-10 Xerox Corporation Elastomeric parallel stage with flexural hinges to provide multi-degree-of-freedom sensitivity of an aerodynamically floated probe head to disturbance in 3d space
CN103089836A (en) * 2012-12-27 2013-05-08 大连东方专用机床有限公司 Precise floating joint device
CN203053405U (en) * 2013-01-22 2013-07-10 北京工业大学 Rapid gear single error field measuring device based on double-face engagement
CN103203683A (en) * 2013-03-13 2013-07-17 大连理工大学 Float polishing head
CN103244363A (en) * 2013-05-03 2013-08-14 广东明阳风电产业集团有限公司 Device and method for centering wind power generator spindle and gearbox shaft expansion sleeve
CN203414063U (en) * 2013-08-12 2014-01-29 浙江万丰科技开发有限公司 Floating detecting device of pneumatic measuring device
CN104759875A (en) * 2014-01-03 2015-07-08 山东双轮韬浦泵业有限公司 Horizontal centring measuring device and method for assembly of sliding bearing
CN204188128U (en) * 2014-09-18 2015-03-04 福建兵工装备有限公司 A kind of floating type coaxality measuring mechanism
CN104526527A (en) * 2015-01-08 2015-04-22 浙江畅尔智能装备股份有限公司 Flexible polishing tool based on pneumatic floating
CN204397436U (en) * 2015-01-20 2015-06-17 杨胜军 A kind of numerical control mill Pneumatic floating clamping device
CN105058239A (en) * 2015-08-05 2015-11-18 浙江瑞宏机器人有限公司 Reciprocating floating head device
CN204942444U (en) * 2015-09-09 2016-01-06 深圳市宏伟自动化设备有限公司 A kind of plane captive nut seat
CN206047530U (en) * 2016-08-31 2017-03-29 昆山市烽禾升精密机械有限公司 A kind of self adaptation centering floating pressure heads mechanism
CN206638114U (en) * 2017-04-19 2017-11-14 苏州普费勒精密量仪有限公司 A kind of flexible floating measurement apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108303003A (en) * 2018-01-09 2018-07-20 无锡富瑞德测控仪器股份有限公司 A kind of relocation mechanism measured for cylinder holes
CN108225156A (en) * 2018-03-07 2018-06-29 埃恩精工无锡有限公司 Gauge head floating measuring mechanism

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