CN103344479A - Composite indentation experimental system with indenter securing device - Google Patents
Composite indentation experimental system with indenter securing device Download PDFInfo
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- CN103344479A CN103344479A CN2013102341330A CN201310234133A CN103344479A CN 103344479 A CN103344479 A CN 103344479A CN 2013102341330 A CN2013102341330 A CN 2013102341330A CN 201310234133 A CN201310234133 A CN 201310234133A CN 103344479 A CN103344479 A CN 103344479A
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- indenter
- right cylinder
- pressure head
- connection block
- tested sample
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Abstract
The objective of the invention is to provide an experimental system to eliminate unfavorable influence of offset of an indenter in an apparatus used in a composite indentation experiment in the prior art, i.e., a composite indentation experimental system with an indenter securing device. The system comprises a workbench bearing a to-be-tested sample, a loaded shaft located above the workbench, an actuating device controlling movement of the loaded shaft, a load sensor and a connecting seat cooperatively used with an indenter. During an experiment, the height of the loaded shaft is adjusted at first so as to allow the connecting seat connected with the lower end of the loaded shaft to be a certain distance away from the to-be-tested sample, then the upper end of the indenter is snapped into a T-shaped groove of the connecting seat, so the indenter can be vertically pressed towards the upper end of the to-be-tested sample under the action of the loaded shaft, thereby avoiding offset and slide posing severe influence on the experiment and allowing accurate measurement data to be obtained. Moreover, with the system provided by the invention, manual operation is reduced, and damage of mechanical equipment to experimenters is avoided.
Description
Technical field
The invention belongs to the material mechanical performance research field, be specifically related to a kind of compound substance impression experimental provision.
Background technology
Experiment also is in the exploration for the compound substance impression at present, and the experimental provision of unified standard is not arranged in this area as yet.The device of common impression experiment comprises the platform of a carrying tested sample (being generally flat metal polyporous material, fibre reinforced composites etc.), and described platform top has a loading axle that can apply acting force downwards.Has pressure head between described loading axle and the tested sample.Experimental needs, described pressure head is made into different shape usually, and its lower end is conehead, round end or tack etc., once often will change some pressure heads in the experiment.Described pressure head upper end is and the surface of contact that loads axle.During experiment, normally will load axle earlier and raise; Again pressure head is placed between loading axle and the tested sample, uses hand steered positive pressure head simultaneously, make the conehead of pressure head lower end or round end contact with tested sample; Reduce to load the height of axle then, make the last end in contact of itself and pressure head; According to the experiment needs, apply a certain size acting force by loading axial pressure head at last, make its upper surface in tested sample stay impression in order to further analyze.
In the said apparatus and method thereof that prior art adopts, owing to will repeatedly change multiple pressure head, and the lower end of pressure head and tested sample are easy to take place deflection, load axle pressure head is applied acting force, particularly during impulsive force, can cause the lower end of pressure head that uncontrollable situations such as slip take place at the tested sample upper surface, the effect force measurement has been brought uncertainty.And under the situation of heavy duty, existing impression experimental provision even can produce danger to the experimenter.
Summary of the invention
The purpose of the invention provides a kind of experimental system, is adopted the adverse effect that the pressure head skew brings in the device to eliminate existing compound substance impression experiment.
For realizing that the technical scheme that the invention purpose adopts is such, a kind of compound substance impression experimental system with pressure head securing device, the drive unit that comprises the worktable that carries tested sample, the load axle that is positioned at described worktable top, the described load axle motion of control, and load cell.Also comprise a Connection Block that is used with pressure head.
Described pressure head is formed by connecting by right cylinder I and right cylinder II, and going to the bottom of described right cylinder II is connected with the upper base of right cylinder I, and the bottom surface diameter of described right cylinder II is that the bottom surface diameter of d2, right cylinder I is d1, d1＜d2.Described right cylinder I lower end connects nose cone, tack or round end.
Described Connection Block has the upper and lower end face of level.The upper surface of described Connection Block is connected the lower surface of load axle.The lower surface of Connection Block has T type groove, and the upper end groove width of described T type groove is that B, lower end groove width are A, B 〉=d2, d2〉A 〉=d1.
Further, the upper surface of described Connection Block wedging magnet.
Technique effect of the present invention is mathematical, during experiment, earlier by adjusting the height of load axle, make the Connection Block that is connected load axle lower end leave the tested sample certain distance, afterwards, the upper end of described pressure head is snapped in the T type groove of described Connection Block, so just can make pressure head can under the effect of load axle, vertically press to the upper end of tested sample, avoid the skew of pressure head and slide to having a strong impact on that experiment brings, determination data is accurate.Simultaneously, the present invention has also reduced manually-operated, avoids the mechanics equipment to experimenter's injury.
Description of drawings
The device of the invention can further specify by the indefiniteness embodiment that accompanying drawing provides.
Fig. 1 is the stereographic map of Connection Block of the present invention;
Fig. 2 is the upward view of Connection Block of the present invention;
Fig. 3 is the vertical view of Connection Block of the present invention;
Fig. 4 is the side view of Connection Block of the present invention;
Fig. 5 is conehead pressure head synoptic diagram of the present invention;
Fig. 5 is round end pressure head synoptic diagram of the present invention.
Fig. 6 is round end pressure head synoptic diagram of the present invention.
Among the figure: 1-Connection Block, 2-pressure head, 3-T type groove, 4-magnet.
Embodiment
Be described further below in conjunction with the invention of embodiment, only limit to following embodiment but should not be construed the above-mentioned subject area of the invention.Under the situation that does not break away from the above-mentioned technological thought of the invention, according to ordinary skill knowledge and customary means, make various replacements and change, all should be included in the protection domain of the invention.
Referring to accompanying drawing: a kind of compound substance impression experimental system with pressure head securing device among the figure comprises worktable and the load loading system of carrying tested sample (tested sample is flat metal polyporous material, fibre reinforced composites etc. usually).Described load loading system namely is the load axle that is positioned at described worktable top, the drive unit that the described load axle of control moves, and load cell.Present embodiment also comprises a Connection Block 1 that is used with pressure head 2.In the present embodiment, in order to be used with Connection Block 1 better, described load axle lower end one end of tested sample (namely towards) is horizontal surface.
In the present embodiment, described pressure head 2 is formed by connecting by right cylinder I and right cylinder II.Going to the bottom of described right cylinder II is connected with the upper base of right cylinder I, the bottom surface diameter of described right cylinder II is that the bottom surface diameter of d2, right cylinder I is d1, d1＜d2, namely the right cylinder II is concentric with right cylinder I bottom surface, and the bottom surface diameter of right cylinder II greater than with the bottom surface diameter of right cylinder I.In the actual processing, right cylinder II and right cylinder I, and the conehead of right cylinder I lower end or round end are one machine-shaping.Another angle namely is that right cylinder I upper end has round boss.
Referring to Fig. 5～6, according to the experiment needs, described right cylinder I lower end connects nose cone, tack or round end, and the size of conehead or round end is determined according to the experiment needs.
Described Connection Block 1 has the upper and lower end face of level.The upper surface of described Connection Block 1 is connected the lower surface of load axle.The lower surface of Connection Block 1 has T type groove 3, and further, referring to Fig. 1, the Connection Block 1 of present embodiment is a cylinder metal piece with horizontal upper and lower end face, and the T type openend of T type groove 3 is in the side of cylinder metal piece.The right cylinder II of described pressure head 2 upper ends slips in the upper end cell body of T type groove 3, and namely described T type groove 3 cooperates with pressure head 2 upper ends.Further, the upper end groove width of described T type groove 3 is that B, lower end groove width are A, B 〉=d2, d2〉A 〉=d1.As preferably, the upper end slot of T type groove 3 is wider than the diameter 1～2mm of right cylinder II.
In the present embodiment, the upper surface of described Connection Block 1 need be connected the lower end of load axle.As preferably, described load axle is iron and steel material quality, and its lower end is flat end.The upper surface wedging magnet 4 of described Connection Block 1 is in order to rely on magnetic force to be bonded at the lower end of load axle.
Claims (2)
1. the compound substance impression experimental system with pressure head securing device comprises the drive unit that the worktable that carries tested sample, the load axle that is positioned at described worktable top, the described load axle of control move; It is characterized in that: also comprise a Connection Block (1) that is used with pressure head (2);
Described pressure head (2) is formed by connecting by right cylinder I and right cylinder II, and going to the bottom of described right cylinder II is connected with the upper base of right cylinder I, and the bottom surface diameter of described right cylinder II is d
2, the right cylinder I the bottom surface diameter be d
1, d
1＜d
2Described right cylinder I lower end connects nose cone, tack or round end;
Described Connection Block (1) has the upper and lower end face of level; The upper surface of described Connection Block (1) is connected the lower surface of load axle; The lower surface of Connection Block (1) has T type groove (3), and the upper end groove width of described T type groove (3) is that B, lower end groove width are A, B 〉=d
2, d
2A 〉=d
1
2. the impression experimental system with pressure head securing device according to claim 1 is characterized in that: the upper surface wedging magnet (4) of described Connection Block (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102341330A CN103344479A (en) | 2013-06-14 | 2013-06-14 | Composite indentation experimental system with indenter securing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102341330A CN103344479A (en) | 2013-06-14 | 2013-06-14 | Composite indentation experimental system with indenter securing device |
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| Publication Number | Publication Date |
|---|---|
| CN103344479A true CN103344479A (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102341330A Pending CN103344479A (en) | 2013-06-14 | 2013-06-14 | Composite indentation experimental system with indenter securing device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2626975A1 (en) * | 1988-02-04 | 1989-08-11 | Siderurgie Fse Inst Rech | Dual-punching device and methods for its implementation |
| CN2670935Y (en) * | 2003-11-28 | 2005-01-12 | 宝山钢铁股份有限公司 | Mould for testing frictional coefficient of plate |
| CN1865905A (en) * | 2005-05-16 | 2006-11-22 | 柳州市预应力机械总厂 | Method for checking intensity of prestressed anchor plate and dedicated extrusion head therefor |
| CN2844890Y (en) * | 2005-11-30 | 2006-12-06 | 宝山钢铁股份有限公司 | Notch pressing device |
| CN102645401A (en) * | 2011-11-15 | 2012-08-22 | 中国商用飞机有限责任公司 | Test device and method for measuring dynamic resistance coefficient of sealing element at different temperatures |
| CN102967508A (en) * | 2012-11-27 | 2013-03-13 | 北京大学 | Device and method for testing ultrahigh-temperature indentation load-displacement curve |
-
2013
- 2013-06-14 CN CN2013102341330A patent/CN103344479A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2626975A1 (en) * | 1988-02-04 | 1989-08-11 | Siderurgie Fse Inst Rech | Dual-punching device and methods for its implementation |
| CN2670935Y (en) * | 2003-11-28 | 2005-01-12 | 宝山钢铁股份有限公司 | Mould for testing frictional coefficient of plate |
| CN1865905A (en) * | 2005-05-16 | 2006-11-22 | 柳州市预应力机械总厂 | Method for checking intensity of prestressed anchor plate and dedicated extrusion head therefor |
| CN2844890Y (en) * | 2005-11-30 | 2006-12-06 | 宝山钢铁股份有限公司 | Notch pressing device |
| CN102645401A (en) * | 2011-11-15 | 2012-08-22 | 中国商用飞机有限责任公司 | Test device and method for measuring dynamic resistance coefficient of sealing element at different temperatures |
| CN102967508A (en) * | 2012-11-27 | 2013-03-13 | 北京大学 | Device and method for testing ultrahigh-temperature indentation load-displacement curve |
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Application publication date: 20131009 |