CN108581878A - A kind of multidirectional Impulsive load fixture - Google Patents

A kind of multidirectional Impulsive load fixture Download PDF

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Publication number
CN108581878A
CN108581878A CN201810397053.XA CN201810397053A CN108581878A CN 108581878 A CN108581878 A CN 108581878A CN 201810397053 A CN201810397053 A CN 201810397053A CN 108581878 A CN108581878 A CN 108581878A
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CN
China
Prior art keywords
fixture
inertial sensor
angle
switching
shape
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
Application number
CN201810397053.XA
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Chinese (zh)
Inventor
陶逢刚
刘天国
陈俊
刘显学
黄晖
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.)
Institute of Electronic Engineering of CAEP
Original Assignee
Institute of Electronic Engineering of CAEP
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.)
Filing date
Publication date
Application filed by Institute of Electronic Engineering of CAEP filed Critical Institute of Electronic Engineering of CAEP
Priority to CN201810397053.XA priority Critical patent/CN108581878A/en
Publication of CN108581878A publication Critical patent/CN108581878A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00Vibration-testing of structures; Shock-testing of structures
    • G01M7/08Shock-testing

Abstract

The invention discloses a kind of multidirectional Impulsive load fixtures.The fixture is used to fix inertial sensor, including:Fixture base and switching fixture;The fixture base is equipped with multiple angles and positions unthreaded hole;Multiple angles position unthreaded hole using first wire guide to be uniformly distributed in the virtual circumference in the center of circle;Fixture of transferring is equipped with boss, and the boss is equipped with two groups of angle positioning spiro pits corresponding with multiple angles positioning unthreaded hole;Two groups of angle positioning spiro pits are symmetrical arranged, and there are two every group of angle positioning spiro pit tools, and the angle of every group of angle positioning spiro pit is equal with two adjacent angles positioning angle of unthreaded hole;The holder wall of switching fixture is equipped with inertial sensor installing blind, and the shape of inertial sensor installing blind and the shape of inertial sensor to be measured match.The versatility that fixture can be improved using fixture provided by the present invention solves the problems, such as that adjustable range and adjusting step-length are limited.

Description

A kind of multidirectional Impulsive load fixture
Technical field
The present invention relates to inertial sensor detection fields, more particularly to a kind of multidirectional Impulsive load fixture, the fixture For in the dynamic environmental tests such as inertial sensor vibratory impulse.
Background technology
Inertial sensor is widely used in the fields such as aerospace, weapon, vehicle and mobile device, in inertial sensor In development, when especially aerospace and weapon are tested using inertial sensor, have to inertial sensor reliability higher Requirement.Vibration impact experiment is the main means verified product reliability and detect inertial sensor dynamic characteristic, in inertia It is indispensable in the development of sensor.Develop inertial sensor when, for inertial sensor characteristic test need by fixture into Row is fixed to be surveyed, then the function of fixture is joint test product and vibration, shock testing machine, and mechanical energy is transmitted on product, to protect The test effect for demonstrate,proving vibratory impulse, is designed with fixture very high requirement, including intensity, rigidity, weight, dynamic characteristic, assembles Craftsmanship etc..Since most of inertial sensor needs sensitive multidirectional acceleration signal, that is, has universal property, experiment is carried The requirement of multi-angle load is gone out, i.e. test product can be adjusted relative to the setting angle of matrix.
Fixture major part currently used for inertial sensor characteristic test is developed both for special test product, is led to It is very low with property, and often volume is bigger, such as Chinese Inst. of Air-to-Air Missiles Wang Zhilin researchs a kind of contact fuze Impact apparatus has the adjusting range between 0 ° to 75 °, but can not apply the inspection in most of small-sized inertial sensor In testing, and adjustable range and adjusting step-length are limited.
Invention content
The object of the present invention is to provide a kind of multidirectional Impulsive load fixtures, to solve to test inertial sensor in the prior art When, existing fixture poor universality, and the problem that adjustable range and adjusting step-length are limited.
To achieve the above object, the present invention provides following schemes:
A kind of multidirectional Impulsive load fixture, the fixture are used to fix inertial sensor, including:Fixture base and switching Fixture;
The side of the fixture base is equipped with switching fixture mounting hole;It is described switching fixture mounting hole shape with described turn The shape of welding fixture matches;
Base wall corresponding to the switching fixture mounting hole is equipped with the first wire guide and multiple angles position unthreaded hole; Multiple angle positioning unthreaded holes are uniformly distributed in the virtual circumference using first wire guide as the center of circle;
The switching fixture is equipped with boss, and the end face of the boss is equipped with corresponding with first wire guide the Two wire guides and two groups of angle positioning spiro pits corresponding with multiple angles positioning unthreaded holes;Angle described in two groups positions Threaded hole be symmetrical arranged, described in every group angle positioning spiro pit tool there are two, the angle of angle positioning spiro pit described in every group with The angle of two adjacent angle positioning unthreaded holes is equal;
The holder wall of the switching fixture is equipped with inertial sensor installing blind, the inertial sensor installing blind Shape and the shape of inertial sensor to be measured match.
Optionally, using first wire guide as vertex, the angle between two adjacent angle positioning unthreaded holes is 15°。
Optionally, using second wire guide as vertex, the angle in every group between the angle positioning spiro pit is 15°。
Optionally, the holder wall is adjacent or opposite with the end face of the boss.
Optionally, the fixture further includes:Fixed plug screw;
The shape of the fixed plug screw and the shape of the inertial sensor installing blind match;In vibration impact experiment When, the inertial sensor to be measured is assembled in the inertial sensor installing blind, the fixed plug screw is screwed into described used The top of property sensor installing blind, is fixed the inertial sensor to be measured.
Optionally, ranging from 0 ° to 360 ° of loading direction of the inertial sensor to be measured in vibration impact experiment.
Optionally, the fixture further includes:Screw;
The screw is through angle positioning unthreaded hole and the angle positioning spiro pit.
Optionally, the fixture further includes:Fixture end cap;
The shape of the shape and the fixture base of the fixture end cap matches;
The fixture end cap fixes the fixture base by screw.
Optionally, the material of the fixture is duralumin material.
According to specific embodiment provided by the invention, the invention discloses following technique effects:The invention discloses one kind Multidirectional Impulsive load fixture, the fixture is for fixing inertial sensor, and the present invention is by being arranged multiple angles in fixture base Position unthreaded hole, multiple angles positioning unthreaded holes circumferentially and are uniformly distributed, further through on the raised head face of switching fixture setting with The angle positioning spiro pit of the angle positioning unthreaded hole, and make the angle of angle positioning spiro pit described in every group adjacent with two The angle positioning unthreaded hole angle it is equal;When carrying out test inertial sensor, made by rotation switching fixture described Angle positioning spiro pit and different angle positioning unthreaded holes are corresponding, are examined comprehensively to inertial sensor to be measured so as to 360 ° It surveys.
In addition, the shape and the shape of inertial sensor to be measured of inertial sensor installing blind of the present invention match, to Improve the versatility of fixture.
Description of the drawings
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is the explosive view of fixture provided by the present invention;
Fig. 2 is front and the side schematic view of fixture base provided by the present invention;
Fig. 3 is the back side and the side schematic view of fixture base provided by the present invention;
Fig. 4 is a kind of form installation diagram of switch fixture provided by the present invention;
Fig. 5 is another form installation diagram of switch fixture provided by the present invention;
Fig. 6 is the fixture explosive view provided by the present invention in Fig. 4 based on switch fixture;
Fig. 7 is the fixture explosive view provided by the present invention in Fig. 5 based on switch fixture;
Fig. 8 is fixture interior section sectional view provided by the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of multidirectional Impulsive load fixture, it can realize and multi-angle is carried out to inertial sensor Detection, and improve the versatility for fixing inertial sensor fixture.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings and specific real Applying mode, the present invention is described in further detail.
Fig. 1 is the explosive view of fixture provided by the present invention, as shown in Figure 1, a kind of multidirectional Impulsive load fixture, the folder Tool for fixing inertial sensor, including:Fixture base 1 and switching fixture 2;The side of the fixture base 1 is equipped with switching Fixture mounting hole 3;The shape of the switching fixture mounting hole 3 and the shape of the switching fixture 2 match.Such as Fig. 2-Fig. 3 institutes Show, the base wall corresponding to the switching fixture mounting hole 3 is equipped with the first wire guide 4 and multiple angles position unthreaded hole 5;It is more A angle positioning unthreaded hole 5 with first wire guide 4 to be uniformly distributed in the virtual circumference in the center of circle.The switching fixture 2 are equipped with boss 6, the end face of the boss 6 be equipped with second wire guide 7 corresponding with first wire guide 4 and with Multiple angles position 5 corresponding two groups of angle positioning spiro pits 8 of unthreaded hole;Angle positioning spiro pit 8 described in two groups is symmetrical Setting, there are two the tools of angle positioning spiro pit 8 described in every group, and the angle of angle positioning spiro pit 8 described in every group is adjacent with two The angle positioning unthreaded hole 5 angle it is equal;The holder wall of the switching fixture 2 is equipped with inertial sensor installing blind 9, The shape of the inertial sensor installing blind 9 and the shape of inertial sensor 10 to be measured match.
Fixture provided by the present invention includes fixture base 1, fixture 2 of transferring, fixed plug screw 11, fixture end cap 12 and spiral shell Nail.In vibration impact experiment, inertial sensor 10 to be measured is assembled in the inertial sensor installing blind 9 of switching fixture 2, will Fixed plug screw 11 is screwed into 9 top of inertial sensor installing blind, and inertial sensor 10 to be measured is fixed.Transfer fixture 2 with Cylindrical hole cooperation installation in fixture base 1, is installed to fixture base 1 by fixture end cap using screw, is compressed to switching fixture 2 It is fixed.
In practical applications, described 2 one end of switching fixture has boss 6, have on 6 end face of boss two groups along circumferential spread side To angled positioning unthreaded hole 5 is distributed, it is labeled as A-A ' and B-B ', and two angles positioning unthreaded hole 5 and B-B ', two angles of A-A ' Degree positioning unthreaded hole 5 is located at two diameter both ends of distribution circle, and the angle between two diameters is 15 degree, which can basis Required load stepping angle is adjusted, in the present invention for 15 degree.
As shown in fig. 4-5, it is adjusted to realize loading direction relative to the axial angle with circumferencial direction is switched:Switching folder The inertial sensor installing blind 9 for being used for installing inertial sensor 10 to be measured on tool 2 needs two kinds of processing methods:A kind of mode is Along the axial processing inertial sensor installing blind 9 of switching fixture 2;Another mode is the radial direction along switching fixture 2 Process inertial sensor installing blind 9.As Figure 6-Figure 7, according to above two processing method, the form for fixture 2 of transferring It will be different.
1 side of fixture base machined 12 circumferentially equally distributed angle positioning unthreaded holes 5, circumferential spread radius with The circumferential spread radius of the threaded hole of switching fixture 2 is identical.Switching fixture 2 be installed in fixture base 1 after, switching fixture 2 around Itself shaft rotation is dynamic, realizes that a pair of of angle positioning unthreaded hole 5 is aligned with a pair of of angle positioning spiro pit 8, fixed by angle using screw Position unthreaded hole 5 and threaded hole carry out the fixation of switching fixture 2, realize an angle positioning.
After fixture 2 of transferring rotates 15 °, another pair angle positioning spiro pit 8 is aligned with angle positioning unthreaded hole 5.Class successively It pushes away, switching fixture 2 often rotates 15 °, can all have a pair of of angle positioning unthreaded hole 5 to be aligned with a pair of of angle positioning spiro pit 8, to real Existing inertial sensor 10 to be measured loading direction in vibration impact experiment adjusts between 0 ° to 360 °, and angle adjusting step is 15°。
Each position is required for progress position to fix after adjusting, ensure that inertia switch is inside fixture when Impulsive load Position is fixed;After the completion of the test of some direction, unscrews fixing screws, is retightened after adjustment angle, then Impulsive load, i.e.,: When debugging loading direction next time, screw is removed, is screwed switching fixture 2 after being rotated in place again..
The transfer bottom of inertial sensor installing blind 9 of fixture 2 processes outlet hole, and there are for the center of fixed plug screw 11 Two wire guides 7 draw the lead 13 of the inertial sensor 10 to be measured.
Fixture base 1, switching fixture 2, fixed plug screw 11 and fixture end cap in fixture provided by the present invention are all selected Duralumin 2A12 materials, screw selection standard part, duralumin material have the characteristics of specific strength is high, excellent cutting performance, are suitable as pressing from both sides Has the material of design.
Fixture 2 transfer using the excircle dimension of Φ 60mm, overall height dimension 50mm;6 outside diameter 46mm of boss is highly 10mm realizes sharp processing using numerically controlled lathe.Two pairs of positioning spiro pit sizes of 6 end face of boss are M3.5, and circumferential spread is straight Diameter is 36mm.
1 appearance and size 110mmX70mmX70mm of fixture base, 12 angles position 5 size Φ 4 of unthreaded hole, 1 profit of fixture base Processing and forming is carried out with CNC milling machine.
Fixed plug screw 11 and fixture end cap are simple in structure, may be implemented by common mechanical processing.
When vibration impact experiment, testpieces is installed in the inertial sensor installing blind 9 of switching fixture 2, will be fixed Plug screw 11 is screwed into switching fixture 2, and testpieces is compressed.Switching fixture 2 is installed to 1 the inside of fixture base, rotation switching fixture 2, after being adjusted to suitable angle, screw is screwed by angle positioning unthreaded hole 5 and is fixed, the rotation of limitation switching fixture 2.Most Installs fixture end cap afterwards, and fixed by screw, switching fixture 2 is compressed, it is ensured that the totally tansitive of mechanical energy, shown in Fig. 8.
The fixture assembled is installed to vibration or shock testing machine, is coupled using bolt, ensures that fixture and table top are fine Fixation, improve test reliability.
In view of the deficiencies of the prior art, the present invention provides the vibration impact experiment fixture of function admirable, the fixture volumes It is small, it is light-weight, it can functionally realize adjustment of the loading direction between 0 ° to 360 °, larger vibratory impulse can be born and carried Lotus.The present invention has good versatility, can be applied to the vibration impact experiment of most of inertial sensor, especially verifies There are the inertial sensor of universal property requirement, such as contact fuze, impact switch etc..
The present invention compared with prior art possessed by advantage:
The present invention positions 4 positioning of unthreaded hole 5 and fixture 2 of transferring by 12 angles of circle distribution in fixture base 1 Screw hole, dexterously realizes 0 ° to 360 ° of loading direction adjusting range, and the fixture that adjusting step is 15 ° designs.And according to reality Border situation, the angle changed in fixture base 1 position 5 number of unthreaded hole, and the number of the positioning threads on fixture 2 of transferring and angle are done Corresponding adjustment, can obtain smaller adjusting step.
The clamp part number of the present invention is few, simple in structure, has preferable processing technology.According to the shape of part to be measured The testing requirements of different inertial sensors can be met by changing the structure of test specimen mounting hole, have very high versatility.
Easy to operate during vibration impact experiment, angle adjustment is easy to implement.And this fixture can also apply from In heart experiment, the acceleration of different directions is loaded to sensor, tests the universal acceleration sensitivity of sensor.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other The difference of embodiment, just to refer each other for identical similar portion between each embodiment.For system disclosed in embodiment For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is said referring to method part It is bright.
Principle and implementation of the present invention are described for specific case used herein, and above example is said The bright method and its core concept for being merely used to help understand the present invention;Meanwhile for those of ordinary skill in the art, foundation The thought of the present invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not It is interpreted as limitation of the present invention.

Claims (9)

1. a kind of multidirectional Impulsive load fixture, which is characterized in that the fixture is used to fix inertial sensor, including:Fixture bottom Seat and switching fixture;
The side of the fixture base is equipped with switching fixture mounting hole;The shape of the switching fixture mounting hole is pressed from both sides with the switching The shape of tool matches;
Base wall corresponding to the switching fixture mounting hole is equipped with the first wire guide and multiple angles position unthreaded hole;It is multiple The angle positioning unthreaded hole is uniformly distributed in the virtual circumference using first wire guide as the center of circle;
The switching fixture is equipped with boss, and the end face of the boss is led equipped with corresponding with first wire guide second String holes and two groups of angle positioning spiro pits corresponding with multiple angles positioning unthreaded holes;Angle positioning threads described in two groups Hole is symmetrical arranged, and there are two angle positioning spiro pit tools described in every group, the angle of angle positioning spiro pit described in every group and two The angle of adjacent angle positioning unthreaded hole is equal;
The holder wall of the switching fixture is equipped with inertial sensor installing blind, the shape of the inertial sensor installing blind Match with the shape of inertial sensor to be measured.
2. fixture according to claim 1, which is characterized in that using first wire guide as vertex, two adjacent institutes The angle stated between angle positioning unthreaded hole is 15 °.
3. fixture according to claim 2, which is characterized in that using second wire guide as vertex, the angle in every group The angle spent between positioning spiro pit is 15 °.
4. fixture according to claim 1, which is characterized in that the holder wall is adjacent with the end face of the boss or phase It is right.
5. fixture according to claim 1, which is characterized in that the fixture further includes:Fixed plug screw;
The shape of the fixed plug screw and the shape of the inertial sensor installing blind match;In vibration impact experiment, The inertial sensor to be measured is assembled in the inertial sensor installing blind, and the fixed plug screw, which is screwed into the inertia, to be passed The inertial sensor to be measured is fixed in the top of sensor installing blind.
6. fixture according to claim 4, which is characterized in that the inertial sensor to be measured is in vibration impact experiment Ranging from 0 ° to 360 ° of loading direction.
7. to remove the fixture described in 1 according to right, which is characterized in that the fixture further includes:Screw;
The screw is through angle positioning unthreaded hole and the angle positioning spiro pit.
8. fixture according to claim 1, which is characterized in that the fixture further includes:Fixture end cap;
The shape of the shape and the fixture base of the fixture end cap matches;
The fixture end cap fixes the fixture base by screw.
9. fixture according to claim 1, which is characterized in that the material of the fixture is duralumin material.
CN201810397053.XA 2018-04-28 2018-04-28 A kind of multidirectional Impulsive load fixture Pending CN108581878A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810397053.XA CN108581878A (en) 2018-04-28 2018-04-28 A kind of multidirectional Impulsive load fixture

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Application Number Priority Date Filing Date Title
CN201810397053.XA CN108581878A (en) 2018-04-28 2018-04-28 A kind of multidirectional Impulsive load fixture

Publications (1)

Publication Number Publication Date
CN108581878A true CN108581878A (en) 2018-09-28

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100471802B1 (en) * 1997-10-31 2005-05-27 현대자동차주식회사 Backdoor Crash Test Jig
KR20110072700A (en) * 2009-12-23 2011-06-29 재단법인 포항산업과학연구원 Jig unit for falling dart impact tester
CN203738637U (en) * 2014-01-17 2014-07-30 昆明理工大学 Thermal-insulation turnover clamping device special for piston of thermal shock and thermal fatigue testbed
CN105203284A (en) * 2015-09-23 2015-12-30 河北汉光重工有限责任公司 Experimental device and method suitable for vibration and impact of small-sized laser gyroscopes
CN205049307U (en) * 2015-10-12 2016-02-24 法雷奥汽车内部控制(深圳)有限公司 A acceleration sensor mounting fixture for vibration testing
CN205920039U (en) * 2016-08-25 2017-02-01 中国工程物理研究院总体工程研究所 Liquid material damping, separate towards capability test device based on cantilever beam response
CN206177547U (en) * 2016-11-15 2017-05-17 北京强度环境研究所 General type pipe vibration anchor clamps
CN106769584A (en) * 2017-01-23 2017-05-31 西南交通大学 A kind of impact wear test piece fixture, testing equipment and test method
CN106940275A (en) * 2017-03-22 2017-07-11 南京航空航天大学 A kind of falling weight impact test plate grip platform and impact velocity measuring method
CN206710048U (en) * 2017-03-27 2017-12-05 厦门市产品质量监督检验院 Universal adjustable vibration impact experiment device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100471802B1 (en) * 1997-10-31 2005-05-27 현대자동차주식회사 Backdoor Crash Test Jig
KR20110072700A (en) * 2009-12-23 2011-06-29 재단법인 포항산업과학연구원 Jig unit for falling dart impact tester
CN203738637U (en) * 2014-01-17 2014-07-30 昆明理工大学 Thermal-insulation turnover clamping device special for piston of thermal shock and thermal fatigue testbed
CN105203284A (en) * 2015-09-23 2015-12-30 河北汉光重工有限责任公司 Experimental device and method suitable for vibration and impact of small-sized laser gyroscopes
CN205049307U (en) * 2015-10-12 2016-02-24 法雷奥汽车内部控制(深圳)有限公司 A acceleration sensor mounting fixture for vibration testing
CN205920039U (en) * 2016-08-25 2017-02-01 中国工程物理研究院总体工程研究所 Liquid material damping, separate towards capability test device based on cantilever beam response
CN206177547U (en) * 2016-11-15 2017-05-17 北京强度环境研究所 General type pipe vibration anchor clamps
CN106769584A (en) * 2017-01-23 2017-05-31 西南交通大学 A kind of impact wear test piece fixture, testing equipment and test method
CN106940275A (en) * 2017-03-22 2017-07-11 南京航空航天大学 A kind of falling weight impact test plate grip platform and impact velocity measuring method
CN206710048U (en) * 2017-03-27 2017-12-05 厦门市产品质量监督检验院 Universal adjustable vibration impact experiment device

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