CN204718887U - Portablely to draw-curved-turn round combined load material mechanical performance testing machine - Google Patents
Portablely to draw-curved-turn round combined load material mechanical performance testing machine Download PDFInfo
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- CN204718887U CN204718887U CN201520385994.3U CN201520385994U CN204718887U CN 204718887 U CN204718887 U CN 204718887U CN 201520385994 U CN201520385994 U CN 201520385994U CN 204718887 U CN204718887 U CN 204718887U
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Abstract
The utility model relate to a kind of portablely to draw-curved-turn round combined load material mechanical performance testing machine, belong to mechanical field.Direct current generator I is fixedly connected with base plate I by motor flange I, first-stage worm gear worm transmission pair is connected with second-stage worm axle I, connected by second-stage worm gear worm transmission pair again, then be connected with precision ball screw I, and be connected with stretch support plate I further by precision ball screw pair of nut I, screw; Stretch support plate I, force snesor I, stretch support plate II form tensioning system with chuck I; Displacement transducer is connected with base plate I by displacement transducer supporting seat, and one end of displacement transducer abuts against an end of stretch support plate II.Advantage is: volume is little, lightweight, rigidity is high, compact conformation, measuring accuracy are high, test pattern is diversified, and available content measurement enriches, can be compatible, practical with the article carrying platform of various electron microscope vacuum cavity.
Description
Technical field
The utility model relates to preloading under multi-load under micro and loads compound loading field tests under field tests, micro, and bending load loading mode also relates to field of in-situ mechanical property test.In particular to one portablely to draw-curved-turn round combined load material mechanical performance testing machine.Can stretch to sample, bend, reverse single load load while, by the microscopic imaging instruments such as Electronic Speculum (as scanning electron microscope SEM etc.) to the microdeformation of sample in loading procedure, damage and fracture process implement quiet, dynamic monitoring under micro.In addition, preloading under multiple load can also be carried out to sample and load and multiple load compound loading, in loading procedure, by microscopic imaging instruments such as Electronic Speculum, online observation be carried out to sample.The utility model also can realize collection to load/displacement signal, control and conversion, for the mechanical characteristic of Accurate Measurement sample under micro with disclose the microdeformation of sample stretching, under the effect such as bending, torsion, the coupling under damage and failure mechanism and multi-load effect, decoupling mechanism provide new test mode.
Background technology
Preloading under multiple load loads and refers to that test specimen is being subject to stretching, after the multi-form prestrain such as bending, torsion, implements to stretch, bending or torsion test to test specimen.In loading procedure, by the collection to parallel signal, control and conversion, coordinate with multiple microcosmic imaging device, observable and comparative analysis test specimen under single load loading mode and under multiple load preload loading mode under different deformation damage mechanism.
Multiple load compound loading refer to test specimen be subject to stretching simultaneously and bending load, stretching and torsional load, bending and torsion load or stretching, bend, the effect of torsional load.In loading procedure, by the collection to each road parallel signal, control and conversion, and coordinate with multiple microcosmic imaging device, can set up draw, curved, the load space coupling model that combined load loads such as to turn round, and binding tests data, decoupling zero is carried out to combined load, the true mechanical behavior under research material and goods service state and deformation damage mechanism.Software aspect needs to carry out parallel control to load and carry out parallel acquisition and process to signal simultaneously, to ensure the accuracy of coupling and decoupling zero.
in-situ mechanical test refers to be carried out in the process of Mechanics Performance Testing to material for test under micro-/ nano yardstick, by the microdeformation that the instruments such as optical microscope, electron microscope and atomic force microscope occur material under various load effect and goods thereof, a kind of mechanical test means of omnidistance dynamically on-line monitoring are carried out in damage.This technology discloses the mechanical behavior of various types of materials and goods thereof, micromechanism of damage and the size of load, the correlativity rule between kind and material property from microcosmic point.In the category of many micro nanometer mechanics performance tests, elastic modulus, shear modulus, bending modulus, hardness, the parameters such as break limit are the topmost tested objects in micro structures mechanical property testing, a variety of method of testing is created for these mechanical quantities, as nano impress/cut, stretching/compressing method, shearing method, bending method and eardrum method etc., its situ three-point bend test method energy more comprehensively reaction material or goods mechanical characteristic in a flexed condition according, and material bending modulus can be measured more intuitively, the important mechanics parameter such as yield limit and fracture strength.
The current research for original position three-point bend test is still in the junior stage, concrete manifestation is as follows: (1) scanning electron microscope, the cavity space of atomic force microscope and transmission electron microscope etc. is very limited, to such an extent as to current majority research all concentrates on based on micro-/ nano sized materials and structure, to nanotube, the atomic minor structure such as nano wire and membraneous material is carried out on simple in-situ nano extension test, lack the further investigation of the trans-scale in-situ micro-/ nano Mechanics Performance Testing to macro-size (membraneous material or three-dimensional test specimen), thus seriously fettered the Micromechanics behavior of academia to large-size element and the further investigation of damage and failure mechanism, (2) from surveying instrument, mainly wearing bending charger by means of business-like scanning electron microscope (SEM) carries out the Mechanics Performance Testing of original position micro-/ nano to material and goods thereof, there is cost of equipment costliness in this method, test specification is limited, the features such as content measurement is outmoded, to compact conformation, measurement range is adjustable, the various original position three-point bend test device of content measurement is rare to be mentioned, greatly constrain research deeply with development,
In position before the application of three-point bending mechanical property measuring technology, bending test is generally to off normal test to material and goods thereof with large-scale Apparatus for Bending at low-temp.Testing machine loads sample with uniform rate according to relevant criterion, load-deflection curve is drawn by testing machine, and then obtain stress-strain curve under load effect, therefore, initial Apparatus for Bending at low-temp is after the angle or fracture material being bent to regulation, draws the mechanics parameters such as the elastic modulus of material, yield limit, break limit.Conventional bending testing machine for be mostly large scale grand material yardstick test specimen, do not relate to the mechanical property research of sample micro-nano-scale category, do not relate to the original position online observation under high resolving power micro imaging system yet.
Summary of the invention
The purpose of this utility model is to provide a kind of portablely draws-curved-turn round combined load material mechanical performance testing machine, solve the problems referred to above that prior art exists.The utility model integrates stretching, bending, torsion three kinds of single load loading modes, multi-load prestrain pattern and multi-load multiple computation model, establish the load space coupling model that combined load loads, and binding tests data, decoupling zero is carried out to combined load, can simulate and true mechanical behavior under research material and goods service state and deformation damage mechanism, solve somewhat expensive that present technology exists, volume greatly, the problem such as the low and poor compatibility of complex structure, Heavy Weight, measuring accuracy.It is little that the utility model has volume, lightweight, rigidity is high, compact conformation, measuring accuracy is high, test pattern variation, and the microdeformation of the imaging system on-line monitoring such as electron microscope macroscopic view test specimen under load effect and Damage and Fracture process can be utilized, the features such as available content measurement is abundant, to the microdeformation of material, damage and fracture process implement microcosmic or original position on-line monitoring, for setting up material close to the combined load Space Coupling model under time of day, explain that the mechanical characteristic of material under micro and damage and failure mechanism provide a kind of new proving installation.
Above-mentioned purpose of the present utility model is achieved through the following technical solutions:
Portablely to draw-curved-turn round combined load material mechanical performance testing machine, direct current generator I 1 is fixedly connected with base plate I 28 by motor flange I 2, the first-stage worm gear worm transmission pair that one-level worm screw I 55, first-stage worm gear I 3 form is connected with second-stage worm axle I 4, be connected with the second-stage worm gear worm transmission pair that second-stage worm gear I 7 forms by second-stage worm I 5 again, then be connected with precision ball screw I 42, and be connected with stretch support plate I 9 further by precision ball screw pair of nut I 43, screw; Stretch support plate I 9, force snesor I 10, stretch support plate II 11 form tensioning system with chuck I 14, wherein stretch support plate I 9 is connected with base plate I 28 by pair of guide rails slider I 12, stretch support plate I 9 is connected with stretch support plate II 11 by crossed roller guide rail 13, and stretch support plate II 11 and chuck I are connected by screw; Displacement transducer 32 is connected with base plate I 28 by displacement transducer supporting seat 33, and one end of displacement transducer 32 abuts against an end of stretch support plate II 11.
Direct current generator II 54 is fixedly connected with base plate II 23 by motor flange II 49, the first-stage worm gear worm transmission pair that one-level worm screw II 56 forms with first-stage worm gear II 48 is connected with second-stage worm axle II 45, be connected with the second-stage worm gear worm transmission pair that second-stage worm gear II 47 forms by second-stage worm II 46 again, then be connected with precision ball screw II 52, and be connected with flex connector III 20 further by precision ball screw pair of nut II 51, flex connector II 19 is connected by screw with flex connector I 18 with flex connector III 20, flex connector II 19; Flex connector I 18 is connected with force snesor II 17 by screw, and then is connected with bending pressure head 16 by internal thread; Flex connector III 20 is connected with base plate II 23 by pair of guide rails slide block II 22, and linear potentiometer 21 is connected with the slide block of in guide rail slide block II 22 by screw.
Direct current generator III 31 is fixedly connected with base plate I 28 by motor flange III 30, the first-stage worm gear worm transmission pair that one-level worm screw III 57 forms with first-stage worm gear III 29 is connected with second-stage worm axle III 26, be connected with the second-stage worm gear worm transmission pair that second-stage worm gear III 24 forms by second-stage worm III 27 again, then be connected by bearing seat system II 37, bearing cap II 36 with torque sensor flange II 34, torque sensor flange II 34 is connected with torque sensor 35 rear end; Torque sensor 35 front end is then connected by torque sensor flange I 38, is then connected with chuck group 41 by bearing seat system I 39, bearing cap I 40; Bearing seat system I, II 37,39 and bearing seat I, II 36,40 and itself and base plate I 28 be all connected by screw.
Described base plate I 28 is connected by screw with base plate II 23.
The beneficial effects of the utility model are: compared with prior art, the utility model volume is little, lightweight, rigidity is high, compact conformation, measuring accuracy is high, test pattern variation, available content measurement enriches, can be compatible with the article carrying platform of various electron microscope vacuum cavity, also can with atomic force microscope, the imaging device compatibilities such as optical microscope use, have wide range of applications, mechanical test under micro can be carried out and in-situ mechanical is tested to macroscopical test specimen of various material and goods, and three kinds of single loads loadings can be realized, the multiple load mode such as combined load loading under loading and multi-load is preloaded under multi-load, to material and goods thereof, the microdeformation under different loading carries out dynamic online observation, to disclose the mechanical behavior of material under micro-nano environment and damage and failure mechanism.By the synchronous detection of load/displacement signal, in conjunction with related software algorithm, stress-strain diagram under bending load effect can be generated by automatic Fitting, set up the coupling model under combined load, and decoupling zero is carried out to it, practical.
In sum, the utility model, to enriching the development preloading under multi-load under micro and load compound loading content measurement under test, micro and promote material mechanical performance measuring technology and equipment, has important theory directive significance and good application and development prospect.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the present utility model, forms a application's part, and illustrative example of the present utility model and explanation thereof, for explaining the utility model, are not formed improper restriction of the present utility model.
Fig. 1 is perspective view of the present utility model;
Fig. 2 is that schematic diagram is looked on a left side of the present utility model;
Fig. 3 is schematic top plan view of the present utility model;
Fig. 4 is schematic front view of the present utility model;
Fig. 5 is schematic rear view of the present utility model;
Fig. 6 is another perspective view of the present utility model;
Fig. 7 is another schematic top plan view of the present utility model.
In figure: 1, direct current generator I; 2, motor flange I; 3, first-stage worm gear I; 4, second-stage worm axle I; 5, second-stage worm I; 6, worm and gear bearing I; 7, second-stage worm gear I; 8, precision ball screw supporting seat I; 9, stretch support plate I; 10, force snesor I; 11, stretch support plate II; 12, guide rail slide block I; 13, crossed roller guide rail; 14, chuck I; 15, test specimen; 16, bending pressure head; 17, force snesor II; 18, flex connector I; 19, flex connector II; 20, flex connector III; 21, linear potentiometer; 22, guide rail slide block II; 23, base plate II; 24, second-stage worm gear III; 25, worm and gear bearing III; 26, second-stage worm axle III; 27, second-stage worm III; 28, base plate I; 29, first-stage worm gear III; 30, motor flange III; 31, direct current generator III; 32, displacement transducer; 33, displacement transducer supporting seat; 34, torque sensor flange I; 35, torque sensor; 36, bearing cap I; 37, bearing seat system I; 38, torque sensor flange II; 39, bearing seat system II; 40, bearing cap II; 41, chuck group; 42, precision ball screw I; 43, precision ball screw pair of nut I; 44, worm and gear bearing II; 45, second-stage worm axle II; 46, second-stage worm II; 47, second-stage worm gear II; 48, first-stage worm gear II; 49, motor flange II; 50, precision ball screw nut support seat II a; 51, precision ball screw pair of nut II; 52, precision ball screw II; 53, precision ball screw nut support seat II b; 54, direct current generator II; 55, one-level worm screw I; 56, one-level worm screw II; 57, one-level worm screw III.
Embodiment
Detailed content of the present utility model and embodiment thereof is further illustrated below in conjunction with accompanying drawing.
See shown in Fig. 1 to Fig. 7, of the present utility modelly portablely to draw-curved-turn round combined load material mechanical performance testing machine, comprise precision actuation unit, transmission and performance element, signal controls and detecting unit, described precision actuation unit, transmission and performance element are: direct current generator I 1 provides Power output, then the first-stage worm gear worm transmission pair be made up of one-level worm screw I 55 and first-stage worm gear I 2 is connected with second-stage worm axle I 4, power is reached on second-stage worm axle I 4, be connected with the second-stage worm gear worm transmission pair that second-stage worm gear I 7 forms by second-stage worm I 5 again, power is reached precision ball screw I 42 place, and drive stretch support plate I 9 further by precision ball screw I 43, force snesor I 10, stretch support plate II 11 and chuck I 14 export accurate straight reciprocating motion.Wherein, direct current generator I 1 is fastenedly connected by motor trip bolt and motor flange I 2, and motor flange I 2 is directly fixedly connected with base plate I 28 by holding screw; Second-stage worm axle I 4 is fixedly connected with base plate I 28 by a pair worm and gear bearing I 6; Precision ball screw supporting seat I 8 is connected by bearing with precision ball screw I 42, and precision ball screw supporting seat I 8 and base plate I 28 are connected by screw; Stretch support plate I 9 is connected with base plate I 28 by pair of guide rails slider I 12, and stretch support plate I 9 is connected with stretch support plate II 11 by crossed roller guide rail 13, and stretch support plate II 11 and chuck I are connected by screw.Displacement transducer 32 is connected with base plate I 28 by displacement transducer supporting seat 33, and one end of displacement transducer 32 abuts against an end of stretch support plate II 11.
Power output is provided by direct current generator II 54, then the first-stage worm gear worm transmission pair be made up of one-level worm screw II 56 and first-stage worm gear II 48 is connected with second-stage worm axle II 45, power is reached on second-stage worm axle II 45, the second-stage worm gear worm transmission pair consisted of second-stage worm II 46 and second-stage worm gear II 47 is again connected, power is reached precision ball screw II 52 place, and drive flex connector III 20 further by precision ball screw pair of nut II 51, flex connector II 19, flex connector I 18, force snesor II 17 and bending pressure head 16 export accurate straight reciprocating motion.Wherein, direct current generator II 54 is fastenedly connected by motor trip bolt and motor flange 49, and motor flange II 49 is directly fixedly connected with base plate II 23 by holding screw; Second-stage worm axle II 45 is fixedly connected with base plate II 23 by a pair worm and gear bearing II 44; Precision ball screw supporting seat II a50, precision ball screw supporting seat II b53 are connected by bearing with the leading screw two ends in precision ball screw pair of nut II 51 respectively, precision ball screw supporting seat II a50 and base plate II 23 are connected by screw, and precision ball screw supporting seat II b53 and base plate II 23 are connected by screw; Flex connector III 20 is all connected by screw with flex connector II 19 and flex connector I 18.Flex connector I 18 is connected with force snesor II 17 by screw, and bending pressure head 16 is connected by internal thread with force snesor II 17.In addition, flex connector III is connected with base plate II 23 by pair of guide rails slide block II 22, and linear potentiometer 21 is connected with the slide block of in guide rail slide block II 22 by screw.
Power output is provided by direct current generator III 31, then the first-stage worm gear worm transmission pair be made up of one-level worm screw III 57 and first-stage worm gear III 29 is connected with second-stage worm axle III 26, power is reached on second-stage worm axle III 26, the second-stage worm gear worm transmission pair consisted of second-stage worm III 27 and second-stage worm gear III 24 is again connected, power is reached torque sensor flange II 34 place, and drive torque sensor 35, chuck group 41 export accurate rotary motion further.Wherein, direct current generator III 31 is fastenedly connected by motor trip bolt and motor flange III 30, and motor flange III 30 is directly fixedly connected with base plate I 28 by holding screw; Second-stage worm axle III 26 is fixedly connected with base plate I 28 by a pair worm and gear bearing III 25; Torque sensor flange II 34 is connected by bearing seat system II 37, bearing cap II 36, and torque sensor flange II 34 is connected with torque sensor 35 rear end.Torque sensor 35 front end is then connected by torque sensor flange I 38, is then connected with chuck group 41 by bearing seat system I 39, bearing cap I 40.Bearing seat system I, II 37,39 and bearing seat I, II 36,40 and itself and base plate I 28 be all connected by screw.
Described signal controls and detecting unit comprises signal control and detecting unit comprises force snesor I 10 and displacement transducer 32, force snesor II 17 and linear potentiometer 21 and torque sensor 35.Can provide for the pulse of direct current generator I 1/direction controlling pattern and comprise three kinds of digital-to-analog feedback signal sources that rate of displacement controls, power speed controls, rate of deformation controls; Can provide for the pulse of direct current generator II 54/direction controlling pattern and comprise three kinds of digital-to-analog feedback signal sources that rate of displacement controls, power speed controls, rate of deformation controls; Can provide for the pulse of direct current generator III 31/direction controlling pattern and comprise three kinds of digital-to-analog feedback signal sources that corner speed controls, moment of torsion speed controls, rate of deformation controls.
Described base plate I 28 is connected by screw with base plate II 23.Described test specimen 15 one end is placed between chuck I 14 and stretch support plate II 11, three all there is the threaded hole of unified model, fixed by screw, and the other end is placed between chuck group 41, the upper and lower two parts of chuck group and test specimen 15 three all there is the threaded hole of same model, fixed by screw.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All the utility model is done any amendment, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. one kind portablely to draw-curved-turn round combined load material mechanical performance testing machine, it is characterized in that: direct current generator I (1) is fixedly connected with base plate I (28) by motor flange I (2), one-level worm screw I (55), the first-stage worm gear worm transmission pair that first-stage worm gear I (3) forms is connected with second-stage worm axle I (4), be connected with the second-stage worm gear worm transmission pair that second-stage worm gear I (7) forms by second-stage worm I (5) again, then be connected with precision ball screw I (42), and further by precision ball screw pair of nut I (43), screw is connected with stretch support plate I (9), stretch support plate I (9), force snesor I (10), stretch support plate II (11) form tensioning system with chuck I (14), wherein stretch support plate I (9) is connected with base plate I (28) by pair of guide rails slider I (12), stretch support plate I (9) is connected with stretch support plate II (11) by crossed roller guide rail (13), and stretch support plate II (11) and chuck I are connected by screw, displacement transducer (32) is connected with base plate I (28) by displacement transducer supporting seat (33), and one end of displacement transducer (32) abuts against an end of stretch support plate II (11),
Direct current generator II (54) is fixedly connected with base plate II (23) by motor flange II (49), the first-stage worm gear worm transmission pair that one-level worm screw II (56) and first-stage worm gear II (48) form is connected with second-stage worm axle II (45), be connected with the second-stage worm gear worm transmission pair that second-stage worm gear II (47) forms by second-stage worm II (46) again, then be connected with precision ball screw II (52), and be connected with flex connector III (20) further by precision ball screw pair of nut II (51), flex connector II (19) and flex connector III (20), flex connector II (19) and flex connector I (18) are connected by screw, flex connector I (18) is connected with force snesor II (17) by screw, and then is connected with bending pressure head (16) by internal thread, flex connector III (20) is connected with base plate II (23) by pair of guide rails slide block II (22), and linear potentiometer (21) is connected with a slide block in guide rail slide block II (22) by screw,
Direct current generator III (31) is fixedly connected with base plate I (28) by motor flange III (30), the first-stage worm gear worm transmission pair that one-level worm screw III (57) and first-stage worm gear III (29) form is connected with second-stage worm axle III (26), be connected with the second-stage worm gear worm transmission pair that second-stage worm gear III (24) forms by second-stage worm III (27) again, then be connected by bearing seat system II (37), bearing cap II (36) with torque sensor flange II (34), torque sensor flange II (34) is connected with torque sensor (35) rear end; Torque sensor (35) front end is then connected by torque sensor flange I (38), is then connected with chuck group (41) by bearing seat system I (39), bearing cap I (40); Bearing seat system I, II (37,39) and bearing seat I, II (36,40) and itself and base plate I (28) are all connected by screw.
2. according to claim 1ly portablely to draw-curved-turn round combined load material mechanical performance testing machine, it is characterized in that: described base plate I (28) is connected by screw with base plate II (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520385994.3U CN204718887U (en) | 2015-06-08 | 2015-06-08 | Portablely to draw-curved-turn round combined load material mechanical performance testing machine |
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| CN201520385994.3U CN204718887U (en) | 2015-06-08 | 2015-06-08 | Portablely to draw-curved-turn round combined load material mechanical performance testing machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784486A (en) * | 2016-05-05 | 2016-07-20 | 南京林业大学 | Veneer elasticity modulus detection method |
| CN105842080A (en) * | 2016-03-17 | 2016-08-10 | 浙江大学 | Mechanical testing system for material with composite load in induction heating mode |
| CN108627389A (en) * | 2018-05-14 | 2018-10-09 | 广州锦宏科技有限公司 | A kind of fatigue tester |
| CN112763315A (en) * | 2020-12-29 | 2021-05-07 | 安徽农业大学 | Tensile/compression-bending mechanical testing device capable of carrying out environmental simulation |
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2015
- 2015-06-08 CN CN201520385994.3U patent/CN204718887U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842080A (en) * | 2016-03-17 | 2016-08-10 | 浙江大学 | Mechanical testing system for material with composite load in induction heating mode |
| CN105842080B (en) * | 2016-03-17 | 2019-11-29 | 浙江大学 | Combined load Material mechanics test system under a kind of induction heating mode |
| CN105784486A (en) * | 2016-05-05 | 2016-07-20 | 南京林业大学 | Veneer elasticity modulus detection method |
| CN105784486B (en) * | 2016-05-05 | 2018-09-14 | 南京林业大学 | A kind of veneer elasticity modulus detection method |
| CN108627389A (en) * | 2018-05-14 | 2018-10-09 | 广州锦宏科技有限公司 | A kind of fatigue tester |
| CN112763315A (en) * | 2020-12-29 | 2021-05-07 | 安徽农业大学 | Tensile/compression-bending mechanical testing device capable of carrying out environmental simulation |
| CN112763315B (en) * | 2020-12-29 | 2022-10-18 | 安徽农业大学 | Tensile/compression-bending mechanical testing device capable of carrying out environmental simulation |
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