CN107764547A - A kind of spring rates of flexure hinges parameter measuring apparatus - Google Patents
A kind of spring rates of flexure hinges parameter measuring apparatus Download PDFInfo
- Publication number
- CN107764547A CN107764547A CN201711065493.7A CN201711065493A CN107764547A CN 107764547 A CN107764547 A CN 107764547A CN 201711065493 A CN201711065493 A CN 201711065493A CN 107764547 A CN107764547 A CN 107764547A
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- CN
- China
- Prior art keywords
- length travel
- power load
- lateral displacement
- load maintainer
- platform
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/023—Power-transmitting endless elements, e.g. belts or chains
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
Abstract
A kind of one spring rates of flexure hinges parameter measuring apparatus, lateral displacement platform are connected with length travel platform, and flexible hinge upper and lower part is fixedly connected with flexible hinge upper mounted plate and lateral displacement platform respectively；Lateral displacement platform produces transverse shifting in the presence of horizontal power load maintainer, drives the bottom of flexible hinge to produce lateral displacement；Horizontal power load maintainer is connected through a screw thread composition cascade with laterally loading force measuring sensors, and loading force is provided by laterally loading force measuring sensors, and the moving displacement of lateral displacement platform is read by lateral displacement meter；Lateral displacement meter is fixed by lateral displacement meter support and length travel platform；Horizontal power load maintainer is connected with horizontal power load maintainer support, and horizontal power load maintainer support is fixedly connected with length travel guide rail；When horizontal power load maintainer applies different loading forces, corresponding lateral displacement meter produces different displacements, thus obtains the lateral stiffness parameter of flexible hinge.
Description
Technical field
The invention belongs to stiffness parameters fields of measurement, and in particular to a kind of spring rates of flexure hinges parameter measuring apparatus.
Background technology
In mechanical engineering technical field, screw pair has been widely used as conventional straight-line motion mechanism, leading screw
Pair of nut often realizes conversion of the rotary motion to linear motion with the use of electric rotating machine.The form of screw pair typically has ladder
Shape screw pair, standard screw pair and ball guide screw nat etc..Trapezoidal screw pair of nut can transmit high torque,
It is commonly used on heavy-duty machinery；Standard screw pair using 60 ° of thread form angle fit systems by adjust pitch can realize it is micro
Feeding；Ball guide screw nat is formed by adding ball between leading screw and nut, is characterized in that moment of friction is small, by pre-
It is tight to can be achieved without lost motion.Limited by ball minimum diameter, the pitch of ball guide screw nat can not accomplish standard leading screw
The minimum pitch of pair of nut.
Although above-mentioned screw pair is different in form, its common ground is consolidated for selected its pitch of screw pair
Fixed, i.e., it is fixed that leading screw, which rotates a circle and is converted into straight-line displacement amount,.For the application scenario of wide velocity interval, to electric rotating machine
Maximum speed, the index such as torque all has higher requirements.And when screw pair stroke is longer, high speed rotary motion will produce
Raw bar shake effect, has a strong impact on that function is transmitted in motion.
In terms of feed rod transmission, have and be combined into rotation-straight line mapping device using the several bearings angled with feed rod
, said structure realizes the transmission of motion by the frictional force between bearing and feed rod.But the above method is fixed equivalent pitch,
Do not possess pitch adjustment function.
The content of the invention
It is an object of the invention to provide a kind of spring rates of flexure hinges parameter measuring apparatus, is carried for flexible hinge transmission force property
For quantizating index, the quantization application of mechanical engineering field flexible hinge is instructed.
Technical scheme is as follows：A kind of spring rates of flexure hinges parameter measuring apparatus, lateral displacement platform and longitudinal position
Moving stage is connected, and flexible hinge upper and lower part is fixedly connected with flexible hinge upper mounted plate and lateral displacement platform respectively；
Lateral displacement platform produces transverse shifting in the presence of horizontal power load maintainer, drives the bottom of flexible hinge to produce lateral displacement；
Horizontal power load maintainer is connected through a screw thread composition cascade with laterally loading force measuring sensors, and loading force is by laterally adding
Carry force measuring sensors to provide, the moving displacement of lateral displacement platform is read by lateral displacement meter；Lateral displacement meter passes through transverse direction
Displacement meter support is fixed with length travel platform；Horizontal power load maintainer is connected with horizontal power load maintainer support, cross force loading
Mechanism rack is fixedly connected with length travel guide rail；When horizontal power load maintainer applies different loading forces, corresponding lateral displacement
Meter produces different displacements, thus obtains the lateral stiffness parameter of flexible hinge；
Length travel platform is connected with length travel guide rail, and length travel platform produces vertical in the presence of longitudinal power load maintainer
To movement, the bottom of flexible hinge is driven to produce length travel；Longitudinal power load maintainer is led to longitudinal direction loading force measuring sensors
Threaded connection composition cascade is crossed, loading force is provided by longitudinal direction loading force measuring sensors, the motion bit of length travel platform
The reading of length travel meter is crossed by Mobile Communication；Length travel meter is fixed by length travel meter support and length travel guide rail；Longitudinal force adds
Mounted mechanism is connected with longitudinal power load maintainer support, and longitudinal power load maintainer support is fixedly connected with length travel guide rail；Longitudinal direction
When power load maintainer applies different loading forces, corresponding length travel meter produces different displacements, it is hereby achieved that flexible hinge
The longitudinal rigidity parameter of chain.
Negative pressure is formed enough between lateral displacement platform and length travel platform by negative pressure gas to be slidably connected.
Flexible hinge upper and lower part is connected through a screw thread form and flexible hinge upper mounted plate and lateral displacement platform respectively
It is fixedly connected.
Above-mentioned horizontal power load maintainer support is arranged on length travel platform.
Lateral displacement meter is threadably secured by lateral displacement meter support and length travel platform.
Horizontal power load maintainer is connected by screw thread with horizontal power load maintainer support, and horizontal power load maintainer support passes through
Threaded form is fixedly connected with length travel guide rail.
Negative pressure is formed enough between length travel platform and length travel guide rail by negative pressure gas to be slidably connected.
Length travel meter is threadably secured by length travel meter support and length travel guide rail.
Longitudinal power load maintainer is connected by screw thread with longitudinal power load maintainer support, and longitudinal power load maintainer support passes through
Threaded form is fixedly connected with length travel guide rail.
The remarkable result of the present invention is：It is suitably applied in longitudinal accurate displacement transmittance process, eliminates Horizonal Disturbing power
On influence caused by guiding mechanism, when guiding mechanism rigidity is more than lateral stiffness measured value, flexible hinge can play elimination
The effect of Horizonal Disturbing power.
Brief description of the drawings
Fig. 1 is spring rates of flexure hinges parameter measuring apparatus schematic diagram of the present invention
In figure：1- transverse direction power load maintainer supports；2- transverse direction power load maintainers；3- lateral displacement meters；4- transverse direction loading forces
Measurement sensor；5- lateral displacement meter supports；6- flexible hinge upper mounted plates；7- flexible hinges；8- lateral displacement platforms；9- longitudinal directions
Displacement platform；10- length travel guide rails；11- length travel meter supports；12- length travel meters；13- longitudinal directions loading force measurement sensing
Device；14- longitudinal directions power load maintainer support；15- longitudinal directions power load maintainer.
Embodiment
A kind of spring rates of flexure hinges parameter measuring apparatus：Pass through negative pressure gas foot between lateral displacement platform 8 and length travel platform 9
Negative pressure sliding connection is formed, the upper and lower part of flexible hinge 7 is connected through a screw thread form with being fixed on flexible hinge respectively
Plate 6 is fixedly connected with lateral displacement platform 8；Lateral displacement platform 8 produces transverse shifting, band in the presence of horizontal power load maintainer 2
The bottom of dynamic flexible hinge 7 produces lateral displacement；Horizontal power load maintainer 2 passes through screw thread with laterally loading force measuring sensors 4
Connection composition cascade, loading force are provided by laterally loading force measuring sensors 4, the motion bit Mobile Communication of lateral displacement platform 8
Lateral displacement meter 3 is crossed to read；Lateral displacement meter 3 is threadably secured by lateral displacement meter support 5 with length travel platform 9；It is horizontal
It is connected to power load maintainer 2 by screw thread with horizontal power load maintainer support 1, horizontal power load maintainer support 1 is connected by screw thread
Form is connect to be fixedly connected with length travel guide rail 10；When horizontal power load maintainer 2 applies different loading forces, corresponding lateral displacement
Meter 3 produces different displacements, it is hereby achieved that the lateral stiffness parameter of flexible hinge 7.
Negative pressure is formed enough between length travel platform 9 and length travel guide rail 10 by negative pressure gas to be slidably connected, vertical
Length travel platform 9 is produced and vertically moved in the presence of to power load maintainer 15, drives the bottom of flexible hinge 7 to produce longitudinal position
Move；Longitudinal power load maintainer 15 is connected through a screw thread composition cascade with longitudinal direction loading force measuring sensors 13, and loading force leads to
Cross longitudinal direction loading force measuring sensors 13 to provide, the moving displacement of length travel platform 9 is read by length travel meter 12；Longitudinal position
Meter 12 is moved to be threadably secured with length travel guide rail 10 by length travel meter support 11；Longitudinal power load maintainer 15 passes through spiral shell
Line is connected with longitudinal power load maintainer support 14, and longitudinal power load maintainer support 14 is connected through a screw thread form and led with length travel
Rail 10 is fixedly connected；When longitudinal power load maintainer 15 applies different loading forces, corresponding length travel meter 12 produces different positions
Move, it is hereby achieved that the longitudinal rigidity parameter of flexible hinge 7.
Above-mentioned horizontal power load maintainer support 1 is not limited only to be installed on length travel guide rail 10, can also be arranged on vertical
To on displacement platform 9, other types of attachment are constant, can equally complete the measurement of above-mentioned parameter.
Claims (9)
- A kind of 1. spring rates of flexure hinges parameter measuring apparatus, it is characterised in that：Lateral displacement platform (8) is matched somebody with somebody with length travel platform (9) Connection is closed, flexible hinge (7) upper and lower part is fixedly connected with flexible hinge upper mounted plate (6) and lateral displacement platform (8) respectively； Lateral displacement platform (8) produces transverse shifting in the presence of horizontal power load maintainer (2), drives the bottom production of flexible hinge (7) Raw lateral displacement；Horizontal power load maintainer (2) is connected through a screw thread with laterally loading force measuring sensors (4) and forms shape of connecting Formula, loading force are provided by laterally loading force measuring sensors (4), and the moving displacement of lateral displacement platform (8) passes through lateral displacement (3) are counted to read；Lateral displacement meter (3) is fixed by lateral displacement meter support (5) and length travel platform (9)；Cross force loads machine Structure (2) is connected with horizontal power load maintainer support (1), and horizontal power load maintainer support (1) is fixed with length travel guide rail (10) Connection；When horizontal power load maintainer (2) applies different loading forces, corresponding lateral displacement meter (3) produces different displacements, thus Obtain the lateral stiffness parameter of flexible hinge (7)；Length travel platform (9) is connected with length travel guide rail (10), the length travel in the presence of longitudinal power load maintainer (15) Platform (9) is produced and vertically moved, and drives the bottom of flexible hinge (7) to produce length travel；Longitudinal power load maintainer (15) and longitudinal direction Loading force measuring sensors (13) are connected through a screw thread composition cascade, and loading force loads force measuring sensors by longitudinal direction (13) provide, the moving displacement of length travel platform (9) is read by length travel meter (12)；Length travel meter (12) passes through longitudinal direction Displacement meter support (11) is fixed with length travel guide rail (10)；Longitudinal power load maintainer (15) and longitudinal power load maintainer support (14) connect, longitudinal power load maintainer support (14) is fixedly connected with length travel guide rail (10)；Longitudinal power load maintainer (15) When applying different loading forces, correspondence length travel meter (12 produce different displacements, it is hereby achieved that flexible hinge (7) Longitudinal rigidity parameter.
- A kind of 2. spring rates of flexure hinges parameter measuring apparatus according to claim 1, it is characterised in that：Lateral displacement platform (8) negative pressure is made up of enough negative pressure gas between length travel platform (9) to be slidably connected.
- A kind of 3. spring rates of flexure hinges parameter measuring apparatus according to claim 1, it is characterised in that：Flexible hinge (7) Upper and lower part is connected through a screw thread form and is fixedly connected with flexible hinge upper mounted plate (6) and lateral displacement platform (8) respectively.
- A kind of 4. spring rates of flexure hinges parameter measuring apparatus according to claim 1, it is characterised in that：Above-mentioned cross force adds Mounted mechanism support (1) is arranged on length travel platform (9).
- A kind of 5. spring rates of flexure hinges parameter measuring apparatus according to claim 1, it is characterised in that：Lateral displacement meter (3) it is threadably secured by lateral displacement meter support (5) and length travel platform (9).
- A kind of 6. spring rates of flexure hinges parameter measuring apparatus according to claim 1, it is characterised in that：Cross force loads machine Structure (2) is connected by screw thread with horizontal power load maintainer support (1), and (1 is connected through a screw thread form to horizontal power load maintainer support It is fixedly connected with length travel guide rail (10).
- A kind of 7. spring rates of flexure hinges parameter measuring apparatus according to claim 1, it is characterised in that：Length travel platform (9) negative pressure is made up of enough negative pressure gas between length travel guide rail (10) to be slidably connected.
- A kind of 8. spring rates of flexure hinges parameter measuring apparatus according to claim 1, it is characterised in that：Length travel meter (12) it is threadably secured by length travel meter support (11) and length travel guide rail (10).
- A kind of 9. spring rates of flexure hinges parameter measuring apparatus according to claim 1, it is characterised in that：Longitudinal force loads machine Structure (15) is connected by screw thread with longitudinal power load maintainer support (14), and longitudinal power load maintainer support (14) is connected through a screw thread Form is fixedly connected with length travel guide rail (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711065493.7A CN107764547A (en) | 2017-10-31 | 2017-10-31 | A kind of spring rates of flexure hinges parameter measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711065493.7A CN107764547A (en) | 2017-10-31 | 2017-10-31 | A kind of spring rates of flexure hinges parameter measuring apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN107764547A true CN107764547A (en) | 2018-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711065493.7A Pending CN107764547A (en) | 2017-10-31 | 2017-10-31 | A kind of spring rates of flexure hinges parameter measuring apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374241A (en) * | 2018-10-29 | 2019-02-22 | 天津大学 | A kind of measuring device of flexible hinge Static stiffness |
Citations (6)
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|---|---|---|---|---|
| CN1308228A (en) * | 2001-03-22 | 2001-08-15 | 上海交通大学 | Elastic element rigidity testing instrument |
| JP2002296159A (en) * | 2001-03-30 | 2002-10-09 | Matsumura Gumi Corp | Test apparatus for loading flat plate and recording medium |
| CN102928220A (en) * | 2012-10-22 | 2013-02-13 | 清华大学 | Experimental device for comprehensively testing dynamic characteristics of linear feeding system |
| CN204286780U (en) * | 2014-11-13 | 2015-04-22 | 华东理工大学 | A kind of flexible hinge rotational stiffness experimental apparatus for testing |
| CN106568559A (en) * | 2016-11-05 | 2017-04-19 | 上海大学 | Measuring device for twisting rigidity of flexible bearing |
| CN107152988A (en) * | 2016-11-22 | 2017-09-12 | 北京航空航天大学 | A kind of static balance measurer based on RCM flexible hinges |
-
2017
- 2017-10-31 CN CN201711065493.7A patent/CN107764547A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308228A (en) * | 2001-03-22 | 2001-08-15 | 上海交通大学 | Elastic element rigidity testing instrument |
| JP2002296159A (en) * | 2001-03-30 | 2002-10-09 | Matsumura Gumi Corp | Test apparatus for loading flat plate and recording medium |
| CN102928220A (en) * | 2012-10-22 | 2013-02-13 | 清华大学 | Experimental device for comprehensively testing dynamic characteristics of linear feeding system |
| CN204286780U (en) * | 2014-11-13 | 2015-04-22 | 华东理工大学 | A kind of flexible hinge rotational stiffness experimental apparatus for testing |
| CN106568559A (en) * | 2016-11-05 | 2017-04-19 | 上海大学 | Measuring device for twisting rigidity of flexible bearing |
| CN107152988A (en) * | 2016-11-22 | 2017-09-12 | 北京航空航天大学 | A kind of static balance measurer based on RCM flexible hinges |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374241A (en) * | 2018-10-29 | 2019-02-22 | 天津大学 | A kind of measuring device of flexible hinge Static stiffness |
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Application publication date: 20180306 |
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| RJ01 | Rejection of invention patent application after publication |