CN106289949A - The centralising device of a kind of tensile sample and method - Google Patents
The centralising device of a kind of tensile sample and method Download PDFInfo
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- CN106289949A CN106289949A CN201510278073.1A CN201510278073A CN106289949A CN 106289949 A CN106289949 A CN 106289949A CN 201510278073 A CN201510278073 A CN 201510278073A CN 106289949 A CN106289949 A CN 106289949A
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- sample
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The centralising device of a kind of tensile sample and method, it is possible to realize metal and the precise alignment of nonmetal plate tensile sample of different in width conveniently and efficiently.Device includes driving mechanism, follower, testing agency, covered wire, conductive plate, operating board, operating board is provided with collet bore, chuck is arranged in collet bore, two set followers it are symmetrically installed at the two ends of operating board collet bore, the plane of symmetry of two set followers is the middle vertical plane of chuck work surface, loop bar on two set followers is coaxially disposed, driving mechanism is arranged on operating board, the plane of symmetry of the plane of symmetry of driving mechanism and two set followers overlaps, driving mechanism and two set followers are connected by two covered wires, two covered wires are isometric, testing agency is connected by the loop bar of copper conductor and two followers；During nonmetal plate sample centering, conductive plate being pasted on specimen surface, the axis of the cross central line of conductive plate and two loop bars is in same level.
Description
Technical field
The present invention relates to material mechanical performance field tests, particularly relate to a kind of more much higher for test process precise requirements
The centralising device of specification tensile sample and method.
Background technology
Along with deepening continuously of material science research, the preciseness of process of the test and the precise requirements of result of the test are got over by people
Come the highest.In some non-standard test of engineering mechanics, often sample is diversified in specifications, and the centering to process of the test
Requiring the highest, the centrage of sample to be ensured is completely superposed with the centrage of chuck, to avoid sample in uniaxial tension mistake
Journey is affected by extra shearing force, moment of flexure, moment of torsion etc., causes the exception of the performance indications such as yield strength.
During conventional tension test, centering is positioned at the positioner of sample side on test board by adjustment and realizes,
Guarantee that sample is vertical by the length constantly adjusting positioning rule.The patent document that Authorization Notice No. is CN201707256U public affairs
" sample vertical centering clamp for tensile testing machine " opened is a kind of improvement to conventional positioning rule.Patent No. CN101598526A
" a kind of sample for testing machine automatic centring device " disclosed in patent document then there is higher automaticity.But it is right
The tensile sample of different size particularly different in width, above-mentioned centering mode is it is difficult to ensure that sample centrage is complete with center of collet line
Full weight is closed, thus is difficulty with precise alignment.
Summary of the invention
It is an object of the invention to provide a kind of centralising device and the method for tensile sample, it is possible to realize different in width conveniently and efficiently
The metal of specification and the precise alignment of nonmetal plate tensile sample.
For achieving the above object, the present invention realizes by the following technical solutions:
A kind of centralising device of tensile sample, including driving mechanism, follower, testing agency, covered wire, conductive plate,
Operating board, is provided with collet bore on described operating board, and chuck is arranged in collet bore, at the two ends pair of operating board collet bore
Claiming to install two set followers, the plane of symmetry of two set followers is the middle vertical plane of chuck work surface, on two set followers
Loop bar is coaxially disposed, and described driving mechanism is arranged on operating board, the plane of symmetry of driving mechanism and the symmetry of two set followers
Face overlaps, and one end of covered wire is fixing with the loop bar of follower to be connected, and the other end of covered wire is through the circle on driving mechanism
Cylinder is fixing with framework to be connected, and the junction point of covered wire and framework, on the plane of symmetry of driving mechanism, connects follower and active
Two covered wires of mechanism are isometric, and testing agency passes through the copper conductor loop bar respectively with two followers and is connected；For non-gold
When belonging to sheet coupon centering, conductive plate is pasted on specimen surface, and the axis of the cross central line of conductive plate and two loop bars is same
On one horizontal plane.
Described driving mechanism includes cylinder, slide block, leading screw, leading screw support, rotation hand wheel, framework, and slide block is placed on operation
On platform, in the upper end of slide block with slide block longitudinal centre line as axis of symmetry, it is symmetrically welded two cylinders, in slide block, is provided with spiral shell
Pit, framework is fixed on operating board, and leading screw sequentially passes through the ratchet hole in framework, slide block screwed hole, leading screw and ratchet footpath
To fixing, the two ends of leading screw are arranged on leading screw support, and leading screw support is fixed on operating board, install in the operating side of leading screw
There is rotation hand wheel.
Described framework includes support body, ratchet, ratchet, and the bottom of support body is fixing with operating board to be connected, and arranges in the lower section of support body
There is ratchet, the ratchet cooperated.
Described follower includes sleeve, loop bar, felt pad, binding post, retainer ring, and felt pad is fixed on operating board,
Sleeve is fixed on felt pad upper end, and loop bar is arranged on the inside of sleeve, sleeve and loop bar matched in clearance, and retainer ring is fixed on set
Bar is close to one end of chuck, and retainer ring connects covered wire, and binding post is fixed on loop bar.
Described testing agency includes circuit tester, copper conductor, and the both positive and negative polarity of circuit tester connects copper conductor respectively.
Use the method that the centralising device of a kind of tensile sample carries out centering to tensile sample, when tensile sample is sheet metal class
During type, including following methods step:
1) being put into by sample between two chucks, tightening chuck makes the gap between chuck and sample try one's best little but is not equal to zero；
2) wire connecting line road is checked, it is ensured that copper conductor is correct with the connection of each mechanism, opens circuit tester, pushes resistance grade；
3) pulling rotation hand wheel, make slide block drive cylinder to move to sample direction, now covered wire carries under the effect of cylinder
Dynamic two loop bars move to sample direction；
4) when two loop bars are fully contacted sample, check circuit tester reading immediately, if resistance is zero, then unclamp rotation hands
Wheel, now ratchet is locked by the ratchet in framework, thus pins slide block and loop bar is no longer subjected to displacement；
5) if resistance is not zero, then continue to pull rotation hand wheel, until resistance is zero；
6) chuck making sample both sides fully clamps, and is fixed by the sample of centering.
When tensile sample is nonmetal plate type, including following methods step:
1) being put into by sample between two chucks, tightening chuck makes the gap between chuck and sample try one's best little but is not equal to zero；
2) conductive plate is pasted on sample, it is ensured that the centrage of conductive plate is in same level with set rod axis, and
When loop bar and sample contacts, also can be in contact with the electrically conductive plates；
3) wire connecting line road is checked, it is ensured that copper conductor is correct with the connection of each mechanism, opens circuit tester, pushes resistance grade；
4) pulling rotation hand wheel, make slide block drive cylinder to move to sample direction, now covered wire carries under the effect of cylinder
Dynamic two loop bars move to sample direction；
5) when two loop bars are fully contacted the conductive plate on sample and sample, circuit tester reading is checked immediately, if resistance is
Zero, then unclamp rotation hand wheel, now ratchet is locked by the ratchet in framework, thus pins slide block and loop bar is no longer subjected to displacement；
6) if resistance is not zero, then continue to pull rotation hand wheel, until resistance is zero；
7) chuck making sample both sides fully clamps, and is fixed by the sample of centering.
Compared with prior art, the invention has the beneficial effects as follows:
The centralising device of a kind of tensile sample and method, be with chuck work surface middle vertical plane for the plane of symmetry pair at sample chuck two ends
Claim to arrange two loop bars, by the loop bar distance at adjusted in concert sample two ends, loop bar can be made to drive sample automatic centering, thus
Different in width gauge metal and the precise alignment of nonmetal plate type tensile sample can be realized conveniently and efficiently.
Accompanying drawing explanation
Fig. 1 is the structural representation of the centralising device of a kind of tensile sample of the present invention；
Fig. 2 is the structural representation of middle frame of the present invention；
In figure: 1, chuck；2, driving mechanism；3, sample；4, covered wire；5, follower；6, testing agency；
7, cylinder；8, operating board；9, slide block；10, leading screw；11, leading screw support；12, rotation hand wheel；13, sleeve；14、
Loop bar；15, felt pad；16, binding post；17, retainer ring；18, framework；19, ratchet；20, ratchet；21、
Circuit tester；22, copper conductor；23, conductive plate.
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in detail, it should be noted that the enforcement of the present invention be not limited to
Under embodiment.
As Figure 1-Figure 2, the centralising device of a kind of tensile sample, including driving mechanism 2, follower 5, testing machine
Structure 6, covered wire 4, conductive plate 23, operating board 8, be provided with collet bore on described operating board 8, and chuck 1 is arranged on
In collet bore, it is symmetrically installed two set followers 5, the plane of symmetry of two set followers 5 at the two ends of operating board 8 collet bore
Being the middle vertical plane of chuck 1 work surface, the loop bar 14 on two set followers 5 is coaxially disposed, and described driving mechanism 2 is installed
On operating board 8, the plane of symmetry of driving mechanism 2 and two set followers 5 the plane of symmetry overlap, one end of covered wire 4 with
The loop bar 14 of follower 5 is fixing to be connected, and the other end of covered wire 4 is through the cylinder 7 on driving mechanism 2 and framework 18
Fixing connection, the junction point of covered wire 4 and framework 18, on the plane of symmetry of driving mechanism 2, connects follower 5 with main
Two covered wires 4 of motivation structure 2 are isometric, testing agency 6 by copper conductor 22 respectively with the loop bar of two followers 5
14 connect；During for sample 3 centering of nonmetal plate type, conductive plate 23 is pasted on sample 3 towards driving mechanism 2
The surface of side, during stickup, the axis of the cross central line of conductive plate 23 and two loop bars 14 is in same level.Lead
The length of electroplax 23 is equal with the width of sample 3 and has certain thickness and width.
Covered wire 4 is inelastic soft insulating line.
Described driving mechanism 2 includes cylinder 7, slide block 9, leading screw 10, leading screw support 11, rotation hand wheel 12, framework 18,
Slide block 9 is placed on operating board 8, in the upper end of slide block 9 with the longitudinal centre line of slide block 9 as axis of symmetry, is symmetrically welded two
Individual cylinder 7, is provided with screwed hole in slide block 9, and framework 18 is fixed on operating board 8, and leading screw 10 sequentially passes through framework
Ratchet 20 endoporus in 18, slide block 9 screwed hole, leading screw 10 is radially fixed with ratchet 20, and the two ends of leading screw 10 are arranged on
On leading screw support 11, leading screw support 11 is fixed on operating board 8, is provided with rotation hand wheel 12 in the operating side of leading screw 10.
It is connected by plain bearing bush between leading screw support 11 with leading screw 10.
Cylinder 7 axis of driving mechanism 2 slide block 9 upper end and loop bar 14 axis of follower 5 are in same level.
Driving mechanism 2 generally symmetrical structure, the longitudinal centre line of slide block 9, the axis of symmetry of cylinder 7 and leading screw 10
Centrage all falls on the plane of symmetry of driving mechanism 2.
Described framework 18 includes support body, ratchet 20, ratchet 19, and the bottom of support body is fixing with operating board 8 to be connected, at support body
Lower section be provided with ratchet 19, the ratchet 20 cooperated.Being provided with keyway on the endoporus of ratchet 20, leading screw 10 leads to
Cross key radially fixed with ratchet 20.
Described follower 5 includes sleeve 13, loop bar 14, felt pad 15, binding post 16, retainer ring 17, felt pad
15 are fixed on operating board 8, and sleeve 13 is fixed on felt pad 15 upper end, and loop bar 14 is arranged on the inside of sleeve 13, set
Cylinder 13 and loop bar 14 matched in clearance, retainer ring 17 is fixed on loop bar 14 one end close to chuck 1, and retainer ring 17 connects
Covered wire 4, binding post 16 is fixed on the outboard end of loop bar 14.
Retainer ring 17 is welded on the side on loop bar 14 towards driving mechanism 2, and two loop bars 14 are welded and fixed ring 17
Position is identical.
Described testing agency 6 includes circuit tester 21, copper conductor 22, and the both positive and negative polarity of circuit tester 21 connects copper conductor 22 respectively.
The other end of copper conductor 22 is connected with the binding post 16 on loop bar 14.
Embodiment 1, uses the method that the centralising device of a kind of tensile sample carries out centering to the sample 3 of sheet metal type,
Including following methods step:
1) being put into by sample 3 between two chucks 1, tightening chuck 1 makes the gap between chuck 1 and sample 3 the least
But it is not equal to zero；
2) wire connecting line road is checked, it is ensured that copper conductor 22 is correct with the connection of each mechanism, opens circuit tester 21, pushes electricity
Resistance shelves；
3) pull rotation hand wheel 12 (when the screw thread of leading screw 10 is right-handed thread, pull rotation hand wheel 12 counterclockwise, when
When the screw thread of leading screw 10 is left hand thread, pull rotation hand wheel 12 clockwise), make slide block 9 drive cylinder 7 to sample 3 side
To movement, now covered wire 4 drives two loop bars 14 to move to sample 3 direction under the effect of cylinder 7；
After the loop bar 14 of side touches sample 3, sample 3 can be promoted to another direction, due to two loop bars 14
It is symmetrically arranged for the plane of symmetry with the middle vertical plane of chuck 1 work surface, is therefore all adequately exposed to sample 3 when two loop bars 14
Time, the two ends of sample 3 can automatic precise alignment.
4) when two loop bars 14 are fully contacted sample 3, circuit tester 21 reading is checked immediately, if resistance is zero, then pine
Opening rotation hand wheel 12, now ratchet 20 is locked by the ratchet 19 in framework 18, thus pins slide block 9 and loop bar 14 no longer
It is subjected to displacement；
5) if resistance is not zero, then continue to pull rotation hand wheel 12, until resistance is shown as zero；
After being fully contacted when two loop bars 14 and sample 3, testing circuit can be connected, now the electricity of circuit tester 21
Resistance can be shown as zero, therefore can be in this, as the standard of observation sample 3 whether centering.
6) chuck 1 making sample 3 both sides fully clamps, and is fixed by the sample 3 of centering.
In the present embodiment, a diameter of 4mm of cylinder 7, a diameter of 3mm of covered wire 4, it is socketed on leading screw 10
The axial length of ratchet 20 is 50mm.The width of sample 3 is 25mm.
Embodiment 2, when sample 3 is nonmetal plate type, including following methods step:
1) being put into by sample 3 between two chucks 1, tightening chuck 1 makes the gap between chuck 1 and sample 3 the least
But it is not equal to zero；
2) conductive plate 23 is pasted sample 3 by the surface of driving mechanism 2 side, it is ensured that the centrage of conductive plate 23
It is in same level with loop bar 14 axis, and guarantees when loop bar 14 and sample 3 are fully contacted, also can be with conductive plate 23
It is fully contacted；
3) wire connecting line road is checked, it is ensured that copper conductor 22 is correct with the connection of each mechanism, opens circuit tester 21, pushes electricity
Resistance shelves；
4) pull rotation hand wheel 12 (when the screw thread of leading screw 10 is right-handed thread, pull rotation hand wheel 12 counterclockwise, when
When the screw thread of leading screw 10 is left hand thread, pull rotation hand wheel 12 clockwise), make slide block 9 drive cylinder 7 to sample 3 side
To movement, now covered wire 4 drives two loop bars 14 to move to sample 3 direction under the effect of cylinder 7；
5) when two loop bars 14 are fully contacted the conductive plate 23 on sample 3 and sample 3, check that circuit tester 21 is read immediately
Number, if resistance is zero, then unclamps rotation hand wheel 12, and now ratchet 20 is locked by the ratchet 19 in framework 18, thus locks
Live slide block 9 and loop bar 14 is no longer subjected to displacement；
6) if resistance is not zero, then continue to pull rotation hand wheel 12, until resistance is shown as zero；
7) chuck 1 making sample 3 both sides fully clamps, and is fixed by the sample 3 of centering.
In the present embodiment, a diameter of 4mm of cylinder 7, a diameter of 3mm of covered wire 4, it is socketed on leading screw 10
The axial length of ratchet 20 is 50mm.The width of sample 3 is 40mm.
Claims (6)
1. the centralising device of a tensile sample, it is characterised in that: include driving mechanism, follower, testing agency,
Covered wire, conductive plate, operating board, be provided with collet bore on described operating board, and chuck is arranged in collet bore, in operation
The two ends of platform collet bore are symmetrically installed two set followers, and the plane of symmetry of two set followers is the middle vertical plane of chuck work surface,
Loop bar on two set followers is coaxially disposed, and described driving mechanism is arranged on operating board, the plane of symmetry of driving mechanism and two
The plane of symmetry of set follower overlaps, and one end of covered wire is fixing with the loop bar of follower to be connected, and the other end of covered wire is worn
Cross that cylinder on driving mechanism is fixing with framework to be connected, the junction point of covered wire and framework on the plane of symmetry of driving mechanism, company
Connect follower isometric with the two of driving mechanism covered wires, testing agency by copper conductor respectively with the set of two followers
Bar connects；During for the sample centering of nonmetal plate type, conductive plate is pasted on specimen surface, the transverse center of conductive plate
The axis of line and two loop bars is in same level.
The centralising device of a kind of tensile sample the most according to claim 1, it is characterised in that: described driving mechanism bag
Including cylinder, slide block, leading screw, leading screw support, rotation hand wheel, framework, slide block is placed on operating board, in the upper end of slide block
With slide block longitudinal centre line as axis of symmetry, being symmetrically welded two cylinders, be provided with screwed hole in slide block, framework is fixed on behaviour
In station, leading screw sequentially passes through the ratchet hole in framework, slide block screwed hole, and leading screw is radially fixed with ratchet, the two ends of leading screw
Being arranged on leading screw support, leading screw support is fixed on operating board, is provided with rotation hand wheel in the operating side of leading screw.
The centralising device of a kind of tensile sample the most according to claim 2, it is characterised in that: described framework includes frame
Body, ratchet, ratchet, the bottom of support body and operating board are fixing to be connected, be provided with in the lower section of support body cooperate ratchet,
Ratchet.
The centralising device of a kind of tensile sample the most according to claim 1, it is characterised in that: described follower bag
Including sleeve, loop bar, felt pad, binding post, retainer ring, felt pad is fixed on operating board, and sleeve is fixed on felt pad
Upper end, loop bar is arranged on the inside of sleeve, sleeve and loop bar matched in clearance, and retainer ring is fixed on loop bar one end close to chuck,
Retainer ring connects covered wire, and binding post is fixed on loop bar.
The centralising device of a kind of tensile sample the most according to claim 1, it is characterised in that: described testing agency wraps
Including circuit tester, copper conductor, the both positive and negative polarity of circuit tester connects copper conductor respectively.
6. use the method that the centralising device of the tensile sample described in claim 1 carries out centering to tensile sample, its
It is characterised by: when tensile sample is sheet metal type, including following methods step:
1) being put into by sample between two chucks, tightening chuck makes the gap between chuck and sample try one's best little but is not equal to zero；
2) wire connecting line road is checked, it is ensured that copper conductor is correct with the connection of each mechanism, opens circuit tester, pushes resistance grade；
3) pulling rotation hand wheel, make slide block drive cylinder to move to sample direction, now covered wire carries under the effect of cylinder
Dynamic two loop bars move to sample direction；
4) when two loop bars are fully contacted sample, check circuit tester reading immediately, if resistance is zero, then unclamp rotation hands
Wheel, now ratchet is locked by the ratchet in framework, thus pins slide block and loop bar is no longer subjected to displacement；
5) if resistance is not zero, then continue to pull rotation hand wheel, until resistance is zero；
6) chuck making sample both sides fully clamps, and is fixed by the sample of centering；
When tensile sample is nonmetal plate type, including following methods step:
1) being put into by sample between two chucks, tightening chuck makes the gap between chuck and sample try one's best little but is not equal to zero；
2) conductive plate is pasted on sample, it is ensured that the centrage of conductive plate and the axis of loop bar are in same level,
And when loop bar and sample contacts, also can be in contact with the electrically conductive plates；
3) wire connecting line road is checked, it is ensured that copper conductor is correct with the connection of each mechanism, opens circuit tester, pushes resistance grade；
4) pulling rotation hand wheel, make slide block drive cylinder to move to sample direction, now covered wire carries under the effect of cylinder
Dynamic two loop bars move to sample direction；
5) when two loop bars are fully contacted the conductive plate on sample and sample, circuit tester reading is checked immediately, if resistance is
Zero, then unclamp rotation hand wheel, now ratchet is locked by the ratchet in framework, thus pins slide block and loop bar is no longer subjected to displacement；
6) if resistance is not zero, then continue to pull rotation hand wheel, until resistance is zero；
7) chuck making sample both sides fully clamps, and is fixed by the sample of centering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510278073.1A CN106289949B (en) | 2015-05-27 | 2015-05-27 | Centering device and method for tensile sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510278073.1A CN106289949B (en) | 2015-05-27 | 2015-05-27 | Centering device and method for tensile sample |
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| Publication Number | Publication Date |
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| CN106289949A true CN106289949A (en) | 2017-01-04 |
| CN106289949B CN106289949B (en) | 2023-06-20 |
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| CN201510278073.1A Active CN106289949B (en) | 2015-05-27 | 2015-05-27 | Centering device and method for tensile sample |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955660A (en) * | 2018-04-18 | 2018-12-07 | 深圳市路桥建设集团有限公司 | Deviation detection method |
| CN111579360A (en) * | 2020-05-21 | 2020-08-25 | 钢研纳克检测技术股份有限公司 | High-flux small sample tension, compression and bending test system and method |
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| CN203443848U (en) * | 2013-08-21 | 2014-02-19 | 上海宝钢工业技术服务有限公司 | Automatic sample width alignment mechanism of full-automatic tensile testing machine |
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| CN204694539U (en) * | 2015-05-27 | 2015-10-07 | 鞍钢股份有限公司 | A kind of centralising device of tensile sample |
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|---|---|---|---|---|
| US5693890A (en) * | 1996-08-07 | 1997-12-02 | Holmes; John W. | Modular alignment device for tensile load frame |
| CN201130125Y (en) * | 2007-12-21 | 2008-10-08 | 宝山钢铁股份有限公司 | Floating type centering device capable of rotationally adjusting |
| CN202429614U (en) * | 2012-01-18 | 2012-09-12 | 铜陵天奇蓝天机械设备有限公司 | Roller conveyor with function of centering control |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955660A (en) * | 2018-04-18 | 2018-12-07 | 深圳市路桥建设集团有限公司 | Deviation detection method |
| CN108955660B (en) * | 2018-04-18 | 2020-12-15 | 深圳市路桥建设集团有限公司 | Deviation detection method |
| CN111579360A (en) * | 2020-05-21 | 2020-08-25 | 钢研纳克检测技术股份有限公司 | High-flux small sample tension, compression and bending test system and method |
| CN111579360B (en) * | 2020-05-21 | 2023-06-30 | 钢研纳克检测技术股份有限公司 | High-flux small sample pulling, pressing and bending test system and method |
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| CN106289949B (en) | 2023-06-20 |
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