CN205981945U - Normal position indentation mechanical testing device based on under biaxial stretching load - Google Patents
Normal position indentation mechanical testing device based on under biaxial stretching load Download PDFInfo
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- CN205981945U CN205981945U CN201620958506.8U CN201620958506U CN205981945U CN 205981945 U CN205981945 U CN 205981945U CN 201620958506 U CN201620958506 U CN 201620958506U CN 205981945 U CN205981945 U CN 205981945U
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Abstract
Normal position indentation mechanical testing device based on under biaxial stretching load belongs to the problem of mechanics precision test instrument technical field, single, the unable normal position indentation test that realizes under the biaxial stretching of load of aim at solution prior art existence. The utility model discloses a normal position indentation mechanical testing device based on under biaxial stretching load includes: a pedestal. The tensile unit that the two sets of structures of setting on the base are the same, two sets of tensile units set up along X axle direction and Y axle direction respectively, and four tip of the double -layered cross test piece of tightly being tested of fixture of two sets of tensile units carry out the biaxial stretching of X axle and Y axle direction to the test piece, the indentation loading unit of setting on the base, the indentation loading unit is at Z to testing being carried out the indentation by the test test piece, with the displacement detection unit of the tensile unit connection of every group, detect the tensile displacement of the tensile unit of every group respectively, and control system, control system control tensile unit and the motion of indentation loading unit.
Description
Technical field
This utility model belongs to mechanics fine measuring instrument technical field and in particular to a kind of be based under biaxial stretch-formed load
Original position impression mechanics test device.
Background technology
In-situ nano mechanical test technology refers to carry out Mechanics Performance Testing to material under nanoscale, and utilizes electronics
The Image-forming instruments such as microscope, atomic force microscope, optical microscope are directed to material and the lower response microcosmic occurring of load effect occur
Deformation, damage are until failure damage phenomenon carries out a kind of mechanical test technology of whole dynamic monitoring.Nanometer mechanics in the original location
In energy field tests, the parameter such as hardness, elastic modelling quantity, yield strength, tensile strength, fatigue strength is characteristic of material mechanics test
In topmost several material property characterization parameters, occur in that many means of testing and method, such as stretching/compressing method, 3 points
Bending method, Nanoindentation etc..
At present, the development for in-situ nano mechanical test technology pertinent instruments is still immature；Existing in-situ nano power
Learn assay device load single it is impossible to related Mechanics Performance Testing is carried out under Action of Combined Loads to material, thus being unable to mould
Intend actual state under true service state for the workpiece.In addition, in existing technology, existing based on tension and compression, tired combined load
Original position impression mechanics test device under pattern and stretching-shearing preload original position impression test device, there is not yet being based on
Original position impression mechanics test device under biaxial stretch-formed.
Utility model content
The purpose of this utility model be to propose a kind of based on the original position impression mechanics test device under biaxial stretch-formed load,
Solve the problems, such as prior art exist load single, cannot realize biaxial stretch-formed under original position impression test.
For achieving the above object, of the present utility model based on the original position impression mechanics test device bag under biaxial stretch-formed load
Include：
Pedestal；
It is arranged on two groups of structure identical draw unit on pedestal, two groups of draw unit are respectively along X-direction and Y-axis side
To setting, the clamping device clamping of two groups of draw unit is test for four ends of cross test specimen, carrying out X-axis and Y to test specimen
Axial biaxial tension；
It is arranged on the impression loading unit on pedestal, described impression loading unit includes impression platform, diamond penetrator, pressure
Sensor, impression slide block, impression guideway, screw pair, Z-direction impression displacement transducer, power transmission unit, impression drive
Motor, motor cabinet and impression bearing；Described impression motor is fixed on described impression bearing by motor cabinet, described impression
Bearing is fixed on pedestal, and described impression driving motor output shaft and described power transmission unit input connect, described power
Gear unit outfan drives described impression slide block to move up and down by screw pair, described impression slide block and be fixed on described
Impression guideway on impression bearing is slidably matched, and described impression slide block lower surface and pressure transducer connect, pressure transducer
The other end be fixedly connected with described diamond penetrator, described impression platform is fixed on described pedestal, described impression platform and described
Diamond penetrator is corresponding, and described Z-direction impression displacement transducer is arranged on the side wall of described impression slide block；
The displacement detecting unit connecting with every group of draw unit respectively, the displacement of every group of draw unit stretching of detection；
And control system, the described control system described draw unit of control and the motion of impression loading unit.
Described draw unit includes the transmission mechanism being arranged on pedestal lower surface and the clamping machine being arranged on pedestal upper surface
Structure；
Described transmission mechanism includes stretching driver element, two-way leading screw, leading screw fixed seat, nut, nut seat, stretching slide block
With stretching guideway；One end of described stretching driver element and described two-way leading screw connects, and drives described two-way leading screw to rotate, institute
The two ends stating two-way leading screw are connected by described leading screw fixed seat and described pedestal, respectively with one, the two ends of described two-way leading screw
Nut forms screw pair, and each nut is fixedly connected by a nut seat and a stretching slide block, each described stretching
Slide block and respectively by one stretching guideway and pedestal be slidably matched；
Described clamping device contiguous block, clamp body, briquetting and pulling force sensor；Two described contiguous blocks respectively with transmission machine
Stretching slide block in structure is fixedly connected, and two faces that one end respectively with two contiguous block of two clamp bodies is oppositely arranged are fixing even
Connect, the other end of described two clamp bodies is respectively arranged with a detent, and described clamp body is provided with the one of detent
End upper surface and a briquetting are connected by screw；Arbitrarily it is provided with a pull sensing between the contiguous block of side and clamp body
Device.
Described stretching driver element includes stretching worm gear A, stretching worm screw A, stretching worm gear B, stretching worm screw B and stretching driving
Motor；The described stretching output shaft of motor and described stretching worm screw B are fixedly and coaxially connected, described stretching worm screw B and stretching
Worm gear B coordinates, and described stretching worm gear B and described stretching worm screw A is fixedly and coaxially connected, described stretching worm screw A and described stretching snail
Wheel A cooperation, described stretching worm gear A is fixedly connected with one end of described two-way leading screw.
Power transmission unit in described impression loading unit includes impression worm gear A, impression worm screw A, worm and gear seat, pressure
Trace worm gear B and impression worm screw B；The output shaft of described impression motor and described impression worm screw B are coaxially connected, described impression snail
Bar B and described impression worm gear B cooperation, described impression worm gear B and described impression worm screw A is coaxially connected, described impression worm screw A and institute
State impression worm gear A cooperation, the leading screw in described impression worm gear A and described screw pair is fixedly and coaxially connected.
Described displacement detecting unit includes displacement block, stretching displacement sensor and fixed seat, described stretching displacement sensing
Device is fixed on described pedestal by fixed seat, and described displacement block one end is fixedly connected with an end of draw unit, separately
One end and described stretching displacement sensor contacts.
Described stretching displacement sensor and corresponding draw unit diameter parallel.
The beneficial effects of the utility model are：Original position impression mechanics based under biaxial stretch-formed load of the present utility model is surveyed
Trial assembly is put and by two groups of draw unit along X-axis and Y direction setting, test specimen is carried out biaxial stretch-formed, and then realizes time of day
Under stretching simulation, test specimen is carried out with original position impression mechanical test, stretching driver element and impression mistake under biaxial stretch-formed state
Power transmission unit in journey all using second-stage worm gear worm-drive, realizes semi-static load；Draw unit utilizes two-way leading screw
Etc. the reverse transmitting characteristic of power, so that test specimen center is held essentially constant, material can be carried out in conjunction with high-resolution imaging system
In-situ mechanical observation.Impression loading unit is arranged in directly over test specimen, vertical Specimen, by impression motor band
Dynamic feed screw nut pair produces straight-line feed, and the second-stage worm gear worm reducer in transmission link can achieve that accurate press-in drives, can
Carry out trans-scale in-situ impression mechanical test.There is compact conformation, small volume, respond rapid, high precision, low cost and other advantages.
Brief description
Fig. 1 is of the present utility model based on the original position impression mechanics test device overall structure signal under biaxial stretch-formed load
Figure；
Fig. 2 is of the present utility model based on the original position impression mechanics test device polycrystalline substance signal under biaxial stretch-formed load
Figure；
Fig. 3 is of the present utility model single based on impression loading in the original position impression mechanics test device under biaxial stretch-formed load
Meta structure schematic diagram；
Fig. 4 is of the present utility model to be shown based on transmission mechanism in the original position impression mechanics test device under biaxial stretch-formed load
It is intended to；
Fig. 5 is of the present utility model to be shown based on clamping device in the original position impression mechanics test device under biaxial stretch-formed load
It is intended to；
Wherein：1st, pedestal, 2, displacement block, 3, stretching displacement sensor, 4, fixed seat, 5, stretching guideway, 6, stretching
Slide block, 7, contiguous block, 8, pulling force sensor, 9, clamp body, 10, briquetting, 11, Z-direction impression displacement transducer, 12, impression slide block,
13rd, impression worm gear A, 14, impression worm screw A, 15, screw pair, 16, worm and gear seat, 17, pressure transducer, 18, impression snail
Wheel B, 19, impression worm screw B, 20, motor cabinet, 21, impression motor, 22, impression guideway, 23, impression bearing, 24, Buddha's warrior attendant
Stone pressure head, 25, impression platform, 26, test specimen, 27, stretching worm gear A, 28, stretching worm screw A, 29, leading screw fixed seat, 30, stretching worm gear
B, 31, stretching worm screw B, 32, nut seat, 33, nut, 34, stretching motor, 35, two-way leading screw.
Specific embodiment
Below in conjunction with the accompanying drawings embodiment of the present utility model is described further.
Referring to accompanying drawing 1, accompanying drawing 2 and accompanying drawing 3, of the present utility model surveyed based on the original position impression mechanics under biaxial stretch-formed load
Trial assembly put including：
Pedestal 1；
It is arranged on two groups of structure identical draw unit on pedestal 1, two groups of draw unit are respectively along X-direction and Y-axis
Direction is arranged, and the clamping device clamping of two groups of draw unit is test for four ends of cross test specimen 26, carrying out X to test specimen 26
Axle and the biaxial tension of Y direction；
It is arranged on the impression loading unit on pedestal 1, described impression loading unit includes impression platform 25, diamond penetrator
24th, pressure transducer 17, impression slide block 12, impression guideway 22, screw pair 15, Z-direction impression displacement transducer 11, power
Gear unit, impression motor 21, motor cabinet 20 and impression bearing 23；It is solid that described impression motor 21 passes through motor cabinet 20
It is scheduled on described impression bearing 23, described impression bearing 23 is fixed on pedestal 1, described impression motor 21 output shaft and institute
State power transmission unit input to connect, described power transmission unit outfan drives described impression to slide by screw pair 15
Block 12 moves up and down, and described impression slide block 12 and the impression guideway 22 being fixed on described impression bearing 23 are slidably matched, institute
State impression slide block 12 lower surface and pressure transducer 17 connects, the other end of pressure transducer 17 and described diamond penetrator 24
It is fixedly connected, described impression platform 25 is fixed on described pedestal 1, and described impression platform 25 and described diamond penetrator 24 are corresponding,
Described Z-direction impression displacement transducer 11 is arranged on the side wall of described impression slide block 12；Described power transmission unit includes impression
Worm gear A13, impression worm screw A14, worm and gear seat 16, impression worm gear B18 and impression worm screw B19；Described impression motor 21
Output shaft and described impression worm screw B19 coaxially connected, described impression worm screw B19 and described impression worm gear B18 cooperation, described pressure
Trace worm gear B and described impression worm screw A14 is coaxially connected, described impression worm screw A14 and described impression worm gear A13 cooperation, described pressure
Leading screw in trace worm gear A13 and described screw pair 15 is fixedly and coaxially connected；
The displacement detecting unit connecting with every group of draw unit respectively, the displacement of every group of draw unit stretching of detection；
And control system, the described control system described draw unit of control and the motion of impression loading unit.
Described draw unit includes the transmission mechanism being arranged on pedestal 1 lower surface and the clamping being arranged on pedestal 1 upper surface
Mechanism；
Referring to accompanying drawing 4, described transmission mechanism includes stretching driver element, two-way leading screw 35, leading screw fixed seat 29, nut
33rd, nut seat 32, stretching slide block 6 and stretching guideway 5；One end of described stretching driver element and described two-way leading screw 35 is even
Connect, drive described two-way leading screw 35 to rotate, the two ends of described two-way leading screw 35 are by described leading screw fixed seat 29 and described pedestal 1
Connect, respectively with one, the two ends nut 33 of described two-way leading screw 35 forms screw pair, and each nut 33 passes through a spiral shell
Female seat 32 is fixedly connected with a stretching slide block 6, each described stretching slide block 6 and pass through respectively and stretch guideway 5 and base
Seat 1 is slidably matched；
Referring to accompanying drawing 5, described clamping device contiguous block 7, clamp body 9, briquetting 10 and pulling force sensor 8；Two described companies
Connect block 7 to be fixedly connected with the stretching slide block 6 in transmission mechanism respectively, one end respectively with two contiguous block 7 phase of two clamp bodies 9
Two faces of setting are fixedly connected, the other end of described two clamp bodies 9 is respectively arranged with a detent, described fixture
Body 9 is provided with one end upper surface of detent and a briquetting 10 is connected by screw；The arbitrarily contiguous block 7 of side and fixture
It is provided with a pulling force sensor 8 between body 9.
Described stretching driver element include stretch worm gear A27, stretching worm screw A28, stretching worm gear B30, stretching worm screw B31 and
Stretching motor 34；The described stretching output shaft of motor 34 and described stretching worm screw B31 are fixedly and coaxially connected, and described draw
Stretch worm screw B31 and stretching worm gear B30 cooperation, described stretching worm gear B30 and described stretching worm screw A28 is fixedly and coaxially connected, described
Stretching worm screw A28 and described stretching worm gear A27 cooperation, one end of described stretching worm gear A27 and described two-way leading screw 35 is fixing even
Connect.
Described displacement detecting unit includes displacement block 2, stretching displacement sensor 3 and fixed seat 4, and described stretching displacement passes
Sensor 3 is fixed on described pedestal 1 by fixed seat 4, and an end of described displacement block 2 one end and draw unit is fixing even
Connect, the other end contacts with described stretching displacement sensor 3.
Described stretching displacement sensor 3 and corresponding draw unit diameter parallel.
Claims (6)
1. based on the original position impression mechanics test device under biaxial stretch-formed load it is characterised in that including：
Pedestal (1)；
It is arranged on two groups of structure identical draw unit on pedestal (1), two groups of draw unit are respectively along X-direction and Y-axis side
To setting, the clamping device clamping of two groups of draw unit is test for four ends of cross test specimen (26), test specimen (26) being entered
Row X-axis and the biaxial tension of Y direction；
It is arranged on the impression loading unit on pedestal (1), described impression loading unit includes impression platform (25), diamond penetrator
(24), pressure transducer (17), impression slide block (12), impression guideway (22), screw pair (15), Z-direction impression displacement pass
Sensor (11), power transmission unit, impression motor (21), motor cabinet (20) and impression bearing (23)；Described impression drives
Motor (21) is fixed on described impression bearing (23) by motor cabinet (20), and described impression bearing (23) is fixed on pedestal (1)
On, described impression motor (21) output shaft and described power transmission unit input connect, and described power transmission unit is defeated
Going out end drives described impression slide block (12) to move up and down by screw pair (15), described impression slide block (12) and be fixed on institute
The impression guideway (22) stated on impression bearing (23) is slidably matched, described impression slide block (12) lower surface and pressure transducer
(17) connect, the other end of pressure transducer (17) is fixedly connected with described diamond penetrator (24), described impression platform (25) is solid
It is scheduled on described pedestal (1), described impression platform (25) and described diamond penetrator (24) are corresponding, described Z-direction impression displacement passes
Sensor (11) is arranged on the side wall of described impression slide block (12)；
The displacement detecting unit connecting with every group of draw unit respectively, the displacement of every group of draw unit stretching of detection；
And control system, the described control system described draw unit of control and the motion of impression loading unit.
2. according to claim 1 based on the original position impression mechanics test device under biaxial stretch-formed load it is characterised in that
Described draw unit includes the transmission mechanism being arranged on pedestal (1) lower surface and the clamping device being arranged on pedestal (1) upper surface；
Described transmission mechanism includes stretching driver element, two-way leading screw (35), leading screw fixed seat (29), nut (33), nut seat
(32), stretching slide block (6) and stretching guideway (5)；One end of described stretching driver element and described two-way leading screw (35) connects,
Described two-way leading screw (35) is driven to rotate, the two ends of described two-way leading screw (35) are by described leading screw fixed seat (29) and described base
Seat (1) connects, and respectively with one, the two ends nut (33) of described two-way leading screw (35) forms screw pair, each nut (33)
It is fixedly connected with stretching slide block (6) by a nut seat (32), each described stretching slide block (6) and respectively by
Individual stretching guideway (5) and pedestal (1) are slidably matched；
Described clamping device contiguous block (7), clamp body (9), briquetting (10) and pulling force sensor (8)；Two described contiguous blocks (7)
It is fixedly connected with the stretching slide block (6) in transmission mechanism respectively, one end respectively with two contiguous block (7) of two clamp bodies (9)
Two faces being oppositely arranged are fixedly connected, and the other end of described two clamp bodies (9) is respectively arranged with a detent, described
Clamp body (9) is provided with one end upper surface of detent and a briquetting (10) is connected by screw；The connection of any side
It is provided with a pulling force sensor (8) between block (7) and clamp body (9).
3. according to claim 2 based on the original position impression mechanics test device under biaxial stretch-formed load it is characterised in that
Described stretching driver element include stretch worm gear A (27), stretching worm screw A (28), stretching worm gear B (30), stretching worm screw B (31) and
Stretching motor (34)；The output shaft of described stretching motor (34) and described stretching worm screw B (31) are fixedly and coaxially connected,
Described stretching worm screw B (31) and stretching worm gear B (30) cooperation, described stretching worm gear B (30) and described stretching worm screw A (28) are coaxial
It is fixedly connected, described stretching worm screw A (28) and the cooperation of described stretching worm gear A (27), described stretching worm gear A (27) and described two-way
One end of leading screw (35) is fixedly connected.
4. according to claim 1 and 2 based on the original position impression mechanics test device under biaxial stretch-formed load, its feature exists
In the power transmission unit in described impression loading unit includes impression worm gear A (13), impression worm screw A (14), worm and gear seat
(16), impression worm gear B (18) and impression worm screw B (19)；The output shaft of described impression motor (21) and described impression worm screw B
(19) coaxially connected, described impression worm screw B (19) and the cooperation of described impression worm gear B (18), described impression worm gear B and described impression
Worm screw A (14) is coaxially connected, and described impression worm screw A (14) and described impression worm gear A (13) coordinate, described impression worm gear A (13)
It is fixedly and coaxially connected with the leading screw in described screw pair (15).
5. according to claim 1 and 2 based on the original position impression mechanics test device under biaxial stretch-formed load, its feature exists
In described displacement detecting unit includes displacement block (2), stretching displacement sensor (3) and fixed seat (4), described stretching displacement
Sensor (3) is fixed on described pedestal (1) by fixed seat (4), one of described displacement block (2) one end and draw unit
End is fixedly connected, and the other end contacts with described stretching displacement sensor (3).
6. according to claim 5 based on the original position impression mechanics test device under biaxial stretch-formed load it is characterised in that
Described stretching displacement sensor (3) and corresponding draw unit diameter parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958506.8U CN205981945U (en) | 2016-08-26 | 2016-08-26 | Normal position indentation mechanical testing device based on under biaxial stretching load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620958506.8U CN205981945U (en) | 2016-08-26 | 2016-08-26 | Normal position indentation mechanical testing device based on under biaxial stretching load |
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| CN205981945U true CN205981945U (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620958506.8U Expired - Fee Related CN205981945U (en) | 2016-08-26 | 2016-08-26 | Normal position indentation mechanical testing device based on under biaxial stretching load |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543752A (en) * | 2017-08-14 | 2018-01-05 | 上海理工大学 | Nano-hardness tester special fixture |
| CN108918297A (en) * | 2018-09-19 | 2018-11-30 | 北华大学 | Biaxial stretch-formed-torsion situ composite load mechanical property testing device |
| CN110333134A (en) * | 2019-07-04 | 2019-10-15 | 西北工业大学 | Uniaxial stretching device and experimental method associated with a kind of and neutron scattering |
| CN112577824A (en) * | 2020-12-25 | 2021-03-30 | 蒋晓瑜 | High strength bolt quality detection device |
| CN114184506A (en) * | 2021-12-06 | 2022-03-15 | 安徽农业大学 | Nano indentation testing device capable of automatically adjusting sample surface levelness |
-
2016
- 2016-08-26 CN CN201620958506.8U patent/CN205981945U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543752A (en) * | 2017-08-14 | 2018-01-05 | 上海理工大学 | Nano-hardness tester special fixture |
| CN107543752B (en) * | 2017-08-14 | 2020-07-17 | 上海理工大学 | Special fixture for nano-indentation instrument |
| CN108918297A (en) * | 2018-09-19 | 2018-11-30 | 北华大学 | Biaxial stretch-formed-torsion situ composite load mechanical property testing device |
| CN108918297B (en) * | 2018-09-19 | 2024-02-06 | 北华大学 | Biaxial stretching-torsion composite load mechanical property testing device |
| CN110333134A (en) * | 2019-07-04 | 2019-10-15 | 西北工业大学 | Uniaxial stretching device and experimental method associated with a kind of and neutron scattering |
| CN112577824A (en) * | 2020-12-25 | 2021-03-30 | 蒋晓瑜 | High strength bolt quality detection device |
| CN112577824B (en) * | 2020-12-25 | 2022-09-20 | 李坤 | High strength bolt quality detection device |
| CN114184506A (en) * | 2021-12-06 | 2022-03-15 | 安徽农业大学 | Nano indentation testing device capable of automatically adjusting sample surface levelness |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170222 Termination date: 20180826 |