CN102998179A - Single-driving bisynchronous-stretching micro-operation test bed - Google Patents
Single-driving bisynchronous-stretching micro-operation test bed Download PDFInfo
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- CN102998179A CN102998179A CN2012104852567A CN201210485256A CN102998179A CN 102998179 A CN102998179 A CN 102998179A CN 2012104852567 A CN2012104852567 A CN 2012104852567A CN 201210485256 A CN201210485256 A CN 201210485256A CN 102998179 A CN102998179 A CN 102998179A
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Abstract
The invention discloses a single-driving bisynchronous-stretching micro-operation test bed, and a test piece can be stretched in two mutually vertical directions by a slide block through a driving input. The single-driving bisynchronous-stretching micro-operation test bed comprises a driving device, a cross-shaped stander, a longitudinal slide block and a longitudinal guide rail, a transverse slide block and a transverse guide rail, a reverse synchronous-driving guide screw set, a transverse fixture support frame, a longitudinal fixture and a diamond four-bar mechanism. According to the single-driving bisynchronous-stretching micro-operation test bed, a link mechanism is adopted to realize synchronous stretching on the test piece in two directions, and an electromechanical control system and a complex transmission mechanism for guaranteeing bidirectional synchronization in the traditional device are omitted; and the stander is stable and firm, the structure is simple, the cost is low, and the stretching test can be carried out on tiny objects.
Description
Technical field
The present invention relates to a kind of drawing mechanism and device thereof for the test of small items material mechanical performance, specifically a kind of single mechanism and device thereof that input realizes that bi-directional synchronization stretches that drive.
Background technology
Carbon nano-tube is subject to researchist's extensive concern owing to have the advantages such as physical strength height, elastic modulus is high, heat conductivility is strong, has high application prospect in engineering.In order to study its material mechanical performance characteristic, such as elastic modulus, yield strength etc., need to carry out mechanics of materials tension test to test specimen.But carbon nano-tube has anisotropy, and traditional one directional tensile test is not enough to fully study the characteristic of material mechanics of this material.Therefore, be necessary to be designed for the test platform that the test specimen bi-directional synchronization stretches.
At present, the biaxial tensile test platform has two kinds of implementations: dual-driving-mode and single type of drive.
The employing dual-driving-mode is realized, namely at horizontal and vertical both direction independently drive unit is installed.Because it is very high that tension test requires synchronism, thereby two driving testing table need to install accurate displacement transducer and complicated synchronous control system, causes whole platform building complicated, and cost is higher.
Adopt single biaxial tensile test platform that drives input usually to use gear, rope as the kind of drive, complex structure, and rope easily produces distortion, limited its application in small test specimen Mechanics Performance Testing.
Summary of the invention
Defective for the prior art existence, the present invention proposes a kind of single driving two-way synchro-draw microoperation testing table, use the rhombus four-bar mechanism that the displacement of longitudinal sliding block is delivered on the transverse slider, thereby simplified drive mechanism and drive unit, be suitable for the biaxial tensile test of small test specimen.
The present invention is achieved through the following technical solutions:
A kind of single driving two-way synchro-draw microoperation testing table comprises drive unit, cross frame, longitudinal rail, longitudinal sliding block I, longitudinal sliding block II, cross slide way, transverse slider I, transverse slider II and rhombus four-bar mechanism.
Described cross frame is fixedly mounted on the worktable, on the described cross frame cross slide way and longitudinal rail is installed.
Described drive unit comprises servomotor, speed reduction unit and shaft coupling.Described motor is fixedly connected with described cross frame.
Described longitudinal rail and described longitudinal sliding block are slidingly connected.Reverse sync turn-screw group is installed in the described longitudinal rail, comprises leading screw I and leading screw II.Described leading screw I is connected with described drive unit, can drive described longitudinal sliding block I and do translation motion at described longitudinal rail.Leading screw II connects by the gear pair of identical number of teeth gear with leading screw I, and rotation direction is opposite with leading screw I, can drive described longitudinal sliding block II and do translation motion at longitudinal rail.
Fixedly mount respectively vertical anchor clamps I and vertical anchor clamps II on described longitudinal sliding block I and the described longitudinal sliding block II.
Described cross slide way is installed in described longitudinal rail both sides, and vertical with described longitudinal rail.Described cross slide way and described transverse slider I, described transverse slider II are slidingly connected.
Fixedly mount respectively horizontal anchor clamps I and horizontal anchor clamps II on described transverse slider I and the described transverse slider II.
Described horizontal anchor clamps are installed on the horizontal fixture bracket, and described horizontal fixture bracket is a bent frame type structure, and the one end is fixedly mounted on the described transverse slider, and described horizontal anchor clamps are installed on the other end.Described horizontal fixture bracket I and described horizontal fixture bracket II are symmetrical about the Clamping Center.
Described rhombus four-bar mechanism is that the long connecting rods such as four groups interconnect by four hinges and form.The a pair of hinge that is in diagonal position is separately fixed on described longitudinal sliding block I and the described longitudinal sliding block II, and another that is in diagonal position is separately fixed on described transverse slider I and the described transverse slider II hinge.
It is as follows to use the present invention to carry out the method step of test specimen biaxial tensile test:
At first this device is fixed on the worktable, and the transverse ends of test specimen to be measured is fixed by described horizontal anchor clamps I and horizontal anchor clamps II, vertical two ends of test specimen to be measured are fixed by described vertical anchor clamps I and vertical anchor clamps II.Then, the described leading screw I of control driven by servomotor rotates.Under the drive of described reverse sync turn-screw group, described vertical anchor clamps I and described vertical anchor clamps II are outwards mobile in the other direction simultaneously, and test specimen is carried out longitudinal stretching.By the gearing of described rhombus four-bar mechanism, described horizontal anchor clamps I and described horizontal anchor clamps II are also outwards mobile in the other direction simultaneously, and test specimen is carried out synchronously cross directional stretch.
Compared with prior art, the invention has the beneficial effects as follows:
1, use a driving input to realize the bi-directional synchronization of test specimen is stretched, saved second group of drive unit, and supporting sensing element and control system, cost can effectively be reduced.
2, relatively more existing single driving two-way synchronous stretching device, the present invention adopts the link in rhomb form transmission to replace gear, rope drive, and part is few, and is simple and reliable for structure, and precision is high.
3, the present invention is suitable for the biaxial tensile test of small test specimen, and simple to operate, ease for use is strong.
Description of drawings
Fig. 1 is the structural representation of single driving two-way synchro-draw microoperation testing table of the present invention.
Among the figure: 1-drive unit; 2-cross frame; 3-laterally anchor clamps I; 4-vertically anchor clamps II; 5-leading screw II; 6-leading screw I; 7-longitudinal rail; 8-laterally fixture bracket I; 9-cross slide way; 10-laterally anchor clamps II; 11-rhombus four-bar mechanism; 12-transverse slider I; 13-vertically anchor clamps I; 14-longitudinal sliding block I; 15-laterally fixture bracket II; 16-transverse slider II; 17-longitudinal sliding block II
Embodiment
As shown in Figure 1: single driving two-way synchro-draw microoperation testing table of the present invention comprises drive unit 1, cross frame 2, longitudinal rail 7, longitudinal sliding block I14, longitudinal sliding block II17, cross slide way 9, transverse slider I12, transverse slider II16, reverse sync turn-screw group, horizontal fixture bracket I8, horizontal fixture bracket II15, horizontal anchor clamps I3, horizontal anchor clamps II10, vertical anchor clamps I13, vertical anchor clamps II4 and rhombus four-bar mechanism 11.Described reverse sync turn-screw group comprises leading screw I6, leading screw II5.
Described cross frame 2 is provided with the through hole of mounting guide rail.Described longitudinal rail 7 is fastened on the described cross frame 2 by bolt, and described cross slide way 9 is fixedly mounted on the both sides of longitudinal rail 7, is bolted to be fixed on the cross frame 2.Consist of " ten " font.Should guarantee during installation that longitudinal rail 9 is mutually vertical with cross slide way 7.Described cross frame 2 is provided with through hole, and available bolt is fixed on the worktable.
Described drive unit 2 comprises servomotor, speed reduction unit and shaft coupling.Described motor is fixedly connected with described cross frame.
Described reverse sync turn-screw group is installed in the described longitudinal rail 7, is comprised of leading screw I6 and leading screw II5.Described leading screw I6 and leading screw II5 one end mesh by gear, all the time with identical velocity reversal's rotation.Described leading screw I6 is connected by the turning axle of shaft coupling with described drive unit 2.Described longitudinal sliding block I14 and described longitudinal sliding block II17 are installed on the longitudinal rail 7.Longitudinal sliding block I14 is connected with leading screw I6 by nut, and when leading screw I6 rotated, longitudinal sliding block I14 did translation motion along guide rail; Longitudinal sliding block II17 is connected with leading screw II5 by nut, and when leading screw II5 rotated, longitudinal sliding block II17 did translation motion along guide rail.Described vertical anchor clamps I13 is bolted and is installed on the longitudinal sliding block I14; Described vertical anchor clamps II4 is bolted and is installed on the longitudinal sliding block II17.Vertically anchor clamps II4 installs with vertically anchor clamps I13 is relative.
Described transverse slider I12 and described transverse slider II16 are installed on the cross slide way 9, and lay respectively at the both sides of longitudinal rail 7, can do translation motion along guide rail.As shown in Figure 1, described horizontal fixture bracket I8 is a bent frame type structure, laterally vertical width of the bent frame of fixture bracket I8 should be greater than 1/2 of longitudinal sliding block I14 and longitudinal sliding block II17 ultimate range, and laterally the transverse width of the bent frame of fixture bracket I8 should be greater than the ultimate range of transverse slider I12 and longitudinal rail 7 center lines.The size of described horizontal fixture bracket II15 is with laterally fixture bracket I8 is identical.Laterally the end of fixture bracket I8 is bolted on transverse slider I12, and the other end is fixedly connected with described horizontal anchor clamps I3; Laterally the end of fixture bracket II15 is bolted on transverse slider II16, and the other end is fixedly connected with described horizontal anchor clamps II10.Laterally fixture bracket I8 and horizontal fixture bracket II15 install about the Clamping Center is symmetrical.Laterally anchor clamps I3 installs with laterally anchor clamps II10 is relative.
Described rhombus four-bar mechanism 11 is interconnected by four hinges by the long connecting rods such as four groups and forms.The a pair of hinge that is in diagonal position is separately fixed on described longitudinal sliding block I14 and the described longitudinal sliding block II17, and another that is in diagonal position is separately fixed on described transverse slider I12 and the described transverse slider II16 hinge.
When carrying out the biaxial tensile test of test specimen, it is upper fixing at first test specimen to be clamped in described horizontal anchor clamps I3, described horizontal anchor clamps II10, described vertical anchor clamps I13 and described vertical anchor clamps II4.Then starter motor drives described leading screw I6 rotation, by the described leading screw II5 of gear driven reverse rotation, thereby it is outwards mobile with identical speed along guide rail with described longitudinal sliding block II17 to drive described longitudinal sliding block I14, make vertical anchor clamps I13 and vertical anchor clamps II4 outwards mobile, and described rhombus four-bar mechanism 11 vertical cornerwise length are increased, horizontal cornerwise length is dwindled.Like this, described transverse slider I12 will move inward with identical speed with described transverse slider II16 simultaneously.Because laterally anchor clamps I3 is installed in the offside of transverse slider I12 by horizontal fixture bracket I8, laterally anchor clamps II10 is installed in the offside of transverse slider II16 by horizontal fixture bracket II15, laterally anchor clamps I3 and laterally anchor clamps II10 also will outwards move.Like this, just realized on the vertical and horizontal both direction, test specimen being carried out synchro-draw.
As mentioned above, just can realize preferably the present invention.Should be pointed out that such scheme is one of more excellent implementation of the present invention, make changes and modifications lower of the prerequisite that does not break away from the principle of the invention and be claim of the present invention and contain.
Claims (7)
1. single driving two-way synchro-draw microoperation testing table, comprise drive unit, cross frame, longitudinal rail, longitudinal sliding block, cross slide way and transverse slider, it is characterized in that: described longitudinal sliding block comprises longitudinal sliding block I and longitudinal sliding block II, and described transverse slider comprises transverse slider I and transverse slider II; Described drive unit is fixedly connected with described cross frame, and described cross frame is installed on the worktable, and described cross slide way and longitudinal rail are installed on the described cross frame; Described longitudinal rail and described longitudinal sliding block are slidingly connected, and are equipped with in the described longitudinal rail to make described longitudinal sliding block make the gearing of translation motion at described longitudinal rail, and described gearing is connected with described drive unit; Described cross slide way is installed in described longitudinal rail both sides, and vertical with described longitudinal rail, and described cross slide way and described transverse slider are slidingly connected; Also comprise a rhombus four-bar mechanism, described rhombus four-bar mechanism is that the long connecting rods such as four groups interconnect by four hinges and form, the a pair of hinge that is in diagonal position is separately fixed on described longitudinal sliding block I and the described longitudinal sliding block II, and another that is in diagonal position is separately fixed on described transverse slider I and the described transverse slider II hinge.
2. single driving two-way synchro-draw microoperation testing table according to claim 1, it is characterized in that: described drive unit comprises servomotor, speed reduction unit and shaft coupling, described motor is fixedly connected with described cross frame.
3. single driving two-way synchro-draw microoperation testing table according to claim 1, it is characterized in that: the gearing that makes described longitudinal sliding block do translation motion at described longitudinal rail of installing in the described longitudinal rail is reverse sync turn-screw group, comprises leading screw I and leading screw II; Described leading screw I is connected with described drive unit, can drive described longitudinal sliding block I and do translation motion at described longitudinal rail; Described leading screw II connects by the gear pair of identical number of teeth gear with leading screw I, and rotation direction is opposite with leading screw I, can drive described longitudinal sliding block II and do translation motion at longitudinal rail.
4. single driving two-way synchro-draw microoperation testing table according to claim 1, it is characterized in that: fixedly mount respectively vertical anchor clamps I and vertical anchor clamps II on described longitudinal sliding block I and the described longitudinal sliding block II, described vertical anchor clamps II installs with vertically anchor clamps I is relative.
5. single driving two-way synchro-draw microoperation testing table according to claim 1, it is characterized in that: fixedly mount respectively horizontal anchor clamps I and horizontal anchor clamps II on described transverse slider I and the described transverse slider II, described horizontal anchor clamps II installs with laterally anchor clamps I is relative.
6. single driving two-way synchro-draw microoperation testing table according to claim 5, it is characterized in that: described horizontal anchor clamps are installed on the horizontal fixture bracket, described horizontal fixture bracket is a bent frame type structure, the one end is fixedly mounted on the described transverse slider, and the other end is installed described horizontal anchor clamps; Comprise horizontal fixture bracket I and horizontal fixture bracket II about the Clamping Center symmetry.
7. single driving two-way synchro-draw microoperation testing table according to claim 6, it is characterized in that: vertical width of the bent frame of described horizontal fixture bracket I should be greater than 1/2 of longitudinal sliding block I and longitudinal sliding block II ultimate range, and laterally the transverse width of the bent frame of fixture bracket I should be greater than the ultimate range of transverse slider I and longitudinal rail center line.
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| CN201210485256.7A CN102998179B (en) | 2012-11-26 | 2012-11-26 | Single-driving bisynchronous-stretching micro-operation test bed |
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| CN201210485256.7A CN102998179B (en) | 2012-11-26 | 2012-11-26 | Single-driving bisynchronous-stretching micro-operation test bed |
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| CN104715658A (en) * | 2015-03-13 | 2015-06-17 | 郭淑华 | X-type teaching tensile testbed and use method thereof |
| CN104849142A (en) * | 2015-05-18 | 2015-08-19 | 北京航空航天大学 | Multidirectional loading universal metal plate property tester |
| CN104913972A (en) * | 2014-12-17 | 2015-09-16 | 天津城建大学 | Multi-station clamping device for fuel gas pipeline laser shock test |
| CN107727280A (en) * | 2017-08-28 | 2018-02-23 | 江苏大学 | The preparation method of single driving two-way tensile test apparatus and flexibility stress sensor |
| CN108151779A (en) * | 2017-12-26 | 2018-06-12 | 深圳市诺峰光电设备有限公司 | A kind of Full-automatic linear formula fingerprint module testing method |
| CN108176948A (en) * | 2017-12-26 | 2018-06-19 | 深圳市诺峰光电设备有限公司 | A kind of new form power source drives four side bearing calibrations |
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| CN110220800A (en) * | 2019-06-18 | 2019-09-10 | 四川大学 | A kind of fatigue experimental device of longitudinal direction and transverse coupling reinforcing |
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| KR20110068415A (en) * | 2009-12-16 | 2011-06-22 | 한국항공우주연구원 | Tension and compression coupon tester using four-bar linkage |
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| CN101655432A (en) * | 2009-07-27 | 2010-02-24 | 清华大学 | uniaxial tension and soil beam bending tester |
| KR20110068415A (en) * | 2009-12-16 | 2011-06-22 | 한국항공우주연구원 | Tension and compression coupon tester using four-bar linkage |
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| CN104913972A (en) * | 2014-12-17 | 2015-09-16 | 天津城建大学 | Multi-station clamping device for fuel gas pipeline laser shock test |
| CN104913972B (en) * | 2014-12-17 | 2017-09-22 | 天津城建大学 | Multistation clamping device is used in a kind of gas pipeline laser-impact experiment |
| CN104715658A (en) * | 2015-03-13 | 2015-06-17 | 郭淑华 | X-type teaching tensile testbed and use method thereof |
| CN104715658B (en) * | 2015-03-13 | 2017-03-29 | 郭淑华 | A kind of X-type teaching tension test platform |
| CN106872357A (en) * | 2015-03-13 | 2017-06-20 | 郭淑华 | A kind of X-type teaching tension test platform |
| CN106872357B (en) * | 2015-03-13 | 2019-08-02 | 徐小洁 | A kind of X-type teaching tension test platform |
| CN104849142A (en) * | 2015-05-18 | 2015-08-19 | 北京航空航天大学 | Multidirectional loading universal metal plate property tester |
| CN107727280A (en) * | 2017-08-28 | 2018-02-23 | 江苏大学 | The preparation method of single driving two-way tensile test apparatus and flexibility stress sensor |
| CN107727280B (en) * | 2017-08-28 | 2020-01-21 | 江苏大学 | Single-drive biaxial tension test device and manufacturing method of flexible stress sensor |
| CN108176948A (en) * | 2017-12-26 | 2018-06-19 | 深圳市诺峰光电设备有限公司 | A kind of new form power source drives four side bearing calibrations |
| CN108151779A (en) * | 2017-12-26 | 2018-06-12 | 深圳市诺峰光电设备有限公司 | A kind of Full-automatic linear formula fingerprint module testing method |
| CN108414366A (en) * | 2018-02-01 | 2018-08-17 | 大连理工大学 | A kind of self-balancing type bidirectional tensile tester driven by single motor |
| CN108414366B (en) * | 2018-02-01 | 2019-12-27 | 大连理工大学 | Self-balancing biaxial tension test device driven by single motor |
| CN108225794A (en) * | 2018-03-27 | 2018-06-29 | 南京博士朗新能源科技有限公司 | A kind of automobile rotary knob selector high and low temperature durability experiment equipment |
| CN108225794B (en) * | 2018-03-27 | 2024-04-02 | 南京博士朗新能源科技有限公司 | High-low temperature endurance experiment equipment for automobile knob shifter |
| CN109813598A (en) * | 2018-12-28 | 2019-05-28 | 大连理工大学 | A kind of cam-type biaxial tension experimental provision |
| CN109813598B (en) * | 2018-12-28 | 2021-06-22 | 大连理工大学 | Cam type biaxial tension experimental device |
| CN109596081B (en) * | 2019-02-03 | 2023-12-26 | 新疆宝力富源减隔震器材有限公司 | Rubber support capable of detecting displacement and displacement monitoring system thereof |
| CN109596081A (en) * | 2019-02-03 | 2019-04-09 | 新疆宝力富源减隔震器材有限公司 | The rubber support and its system for monitoring displacement of detectable displacement |
| CN110220800A (en) * | 2019-06-18 | 2019-09-10 | 四川大学 | A kind of fatigue experimental device of longitudinal direction and transverse coupling reinforcing |
| CN110350738A (en) * | 2019-08-19 | 2019-10-18 | 抚顺煤矿电机制造有限责任公司 | A kind of motor housing clamping device |
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| CN112414659A (en) * | 2020-12-09 | 2021-02-26 | 中国航空综合技术研究所 | Combined type adapting device for flexibility test of airborne equipment |
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