CN205719835U - A kind of mechanical property of materials determinator and pressure head component thereof - Google Patents
A kind of mechanical property of materials determinator and pressure head component thereof Download PDFInfo
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- CN205719835U CN205719835U CN201620149105.8U CN201620149105U CN205719835U CN 205719835 U CN205719835 U CN 205719835U CN 201620149105 U CN201620149105 U CN 201620149105U CN 205719835 U CN205719835 U CN 205719835U
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- pressure head
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- 239000000463 material Substances 0.000 title claims abstract 18
- 230000003287 optical effect Effects 0.000 claims abstract 12
- 238000012634 optical imaging Methods 0.000 claims abstract 3
- 238000003825 pressing Methods 0.000 claims abstract 3
- 229910003460 diamond Inorganic materials 0.000 claims 1
- 239000010432 diamond Substances 0.000 claims 1
- 238000007373 indentation Methods 0.000 claims 1
- 238000003556 assay Methods 0.000 abstract 1
- 238000012512 characterization method Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
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Abstract
The utility model discloses a kind of mechanical property of materials determinator and pressure head component thereof and assay method, the described mechanical property of materials detects fixed pressure head and includes for applying pressure in measurand pressure head and the pressure head bar with acquisition impression, for obtaining the pressure of described pressure head and the sensor cluster that pressure is deep, for obtaining image and the optical module of measurand deformation sized data of impression；Wherein, described pressure head bar is hollow structure, and optical module is located on pressure head bar, and pressure head is made of clear material, and is located at the end of pressure head bar, and the optical imaging path of optical module is consistent with the direction of exerting pressure of pressure head.This utility model solves the collection of the real time data of optical module, the possibility of the most real-time measurement data in conjunction with the realization of sensor cluster and optical module, so two characterization factors can be increased in the sign of the mechanical property of materials, improve mechanics properties testing accuracy.
Description
Technical field
This utility model relates to mechanical property of materials detection technique field, particularly relates to a kind of mechanical property of materials determinator and pressure head component thereof.
Background technology
Do hardness with creasing method or the mechanical property of materials measures, this is the hardness measurement method of standard, pressure is measured when given depth of cup, speculate hardness and the mechanical property of materials, current detecting instrument is applicable to laboratory or some detection site fixed more, this causes using indentation method is destructive when detecting, need to be sampled then detecting to fixed location or laboratory to detected object, can not be portable, so the comparison limitation of the occasion being suitable for, the existing portable instrumentation equipment of current this method, owing to the mechanical property of materials is different, stress is different, impression diameter corresponding to depth of cup is change, need substantial amounts of staking-out work, error is bigger.
The existing portable many employings of instrumentation equipment single pressure head single measurement characterizes the mechanical property of materials, i.e. by a pressure head, measured piece done an indentation test, withdraw this pressure head again, impression is detected by conversion to optical module, the data obtained finally according to single carry out the sign of the mechanical property of materials, this detection cannot realize real-time repeated detection, owing to the forming process of impression being the process of an elastic-plastic deformation, when pressure head withdraws measured piece surface, when no longer acting on measured piece, there is the phenomenon of resilience in the impression of measured piece, cause the degree of depth of impression, size and area are respectively less than does not withdraws duration, so so cause subsequent optical assembly simply acquire after unloading to impression size or area, the data obtained are inaccurate, the hardness finally resulting in measurement is inaccurate, accuracy is the highest.
So along with the development of scientific research, the scientist in more and more indentation fields starts to believe, the plastoelasticity of material can not be caused the form factor of impression uniquely to determine by a pressure head, single pressure head is the most counter to release the corresponding mechanical property of materials, accomplish the most positive and negative to push through journey, must additionally increase impression characterization factor, the older generations have had some to characterize the achievement in research of metal material elastic plastic mechanical properties by indentation method, but the problem solving uniqueness the most very well, detection method could not shape, there is no instrumentation, more it is not carried out portability, up to the present this problem remains the focus that academia is discussed, the two factor can be characterized to reflect that this most positive and negative instrumentation equipment pushing through journey becomes crucial because how to make.
Simultaneously currently in order to accomplish portability and the instrumentation of detection, current existing detection method mostly is after adding unloading with being measured microscopically remaining impression, compares with Theoretical Area, calculates hardness and the mechanical property of materials, all preferable with in precision in theory, but cannot instrumentation and portability.
Make the portable of the problem that is applicable to solve this above-mentioned uniqueness and can the equipment of instrumentation, without departing from detected member when to be accomplished is the measurement of single pressure head, the most also need to ensure the repeatedly accurate acquisition of real time data, need again to ensure portable and instrumentation simultaneously.
Summary of the invention
This utility model purpose is to propose a kind of mechanical property of materials determinator and pressure head component thereof and assay method, the detection equipment of portability and instrumentation, and the technical problem that testing result is inaccurate, precision is the most high can not be formed for the Uniqueness with the above-mentioned prior art of solution.
The utility model proposes a kind of mechanical property of materials mensuration pressure head component, including: for applying pressure in measurand to obtain pressure head and the pressure head bar of impression, for obtaining the pressure of described pressure head and the sensor cluster that pressure is deep, for obtaining image and the optical module of measurand deformation sized data of described impression；Wherein, described pressure head bar is hollow structure, and described optical module is located on described pressure head bar, and described pressure head is made of clear material, being located at the end of described pressure head bar, the optical imaging path of described optical module is consistent with the direction of exerting pressure of described pressure head through described pressure head bar.
Preferably, pressure head component of the present utility model can also have a following technical characteristic:
Described optical module includes that photographic head and the microscope being provided with pickup-light source, described photographic head and described microscope are same and sets with described pressure head bar, and described photographic head, described microscope are consistent with the direction of exerting pressure of described pressure head with the optical imaging path that described pressure head is formed.
Described sensor cluster includes pressure transducer and presses deep sensor, and described pressure transducer is located at the end of described pressure head bar, and the deep sensor of described pressure is located at outside described pressure head bar.
Described pressure head bar offers the through hole of 0.5～4mm vertically, makes indentation image and pickup-light source light form optical path through through hole and pressure head with the described optical module being arranged in described through hole.
Described indenter shape is cone, pyramid type or dome-type.
Described pressure head is made up of diamond, and the described mechanical property of materials includes the tensile strength of material, yield strength, elastic modelling quantity, hardness, material constant, Poisson's ratio, plasticity, fracture toughness or residual stress.
Described optical module uses microscope and the photographic head with automatic focusing function.
In addition, this utility model also proposed a kind of mechanical property of materials determinator, including base, column and cantilever, it is located at the display screen on described cantilever, the pressing plate test stand being located on described base, described base, column and cantilever are fixedly connected sequentially, and also include the mechanical property of materials mensuration pressure head component as described in above-mentioned any one being located on described cantilever.
nullThe beneficial effect that this utility model is compared with the prior art includes: the mechanical property of materials mensuration pressure head component that the utility model proposes is by pressure head bar、Pressure head and optical module composition，Pressure head is located at the end of pressure head bar，Wherein，Described pressure head bar is hollow structure，Described optical module is located on described pressure head bar，The optical imaging path of described optical module is consistent with the direction of exerting pressure of described pressure head，So during the detection of work，Just just can carry out obtaining by the optical module being located therein the related data of impression without pressure head is withdrawn impression，This frame mode solves the collection of the real time data of optical module，Other the deformation sized data such as area of indentation can be detected by optical module in real time，The pressure that detects pressure head the most real-time by the sensor cluster being arranged on described pressure head and depth of cup，The possibility of the most real-time measurement data in conjunction with the realization of sensor cluster and optical module，So two characterization factors can be increased in the sign of the mechanical property of materials，Improve mechanics properties testing accuracy，For the most each working alone compared to existing optical module and pressure head，Avoid when pressure head withdraws measured piece surface，When no longer acting on measured piece，Owing to the impression of measured piece exists the phenomenon of resilience，The problem fully solving uniqueness，So that the degree of depth of impression、Size and area can detect by real-time carrying out，Ensure that impression size or area are being acquired by optical module、The data obtained are accurate，Improve the precision of the mechanical property of materials.
The mechanical property of materials determinator that the utility model proposes make use of above-mentioned mechanical property of materials mensuration pressure head component, measures the mechanical property of materials, so having than the existing more preferable degree of accuracy of detection device.
In one preferred version, optical module includes photographic head and the microscope being provided with pickup-light source, with being located in pressure head bar, described photographic head, described microscope are consistent with the direction of exerting pressure of described pressure head with the optical imaging path that described pressure head is formed, achieve the integrated setting of optical module and pressure head bar, impression can be amplified by microscope, it is simple to photographic head obtains image.
In another preferred version, the pressure transducer in sensor cluster and the deep sensor of pressure can complete the Real-time Collection of data with the pressure of pressure head and the degree of depth of impression.
In another preferred version, the hole size in pressure head bar can meet places different amplification coefficients, various sizes of microscopical requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model detailed description of the invention one and two；
Fig. 2 is the structural representation of this utility model detailed description of the invention one and two.
1-pressure head, 2-microscope, 3-pressure head bar, 4-photographic head, 5-cantilever, 6-pressure transducer, 7-presses deep sensor, 8-through hole.
H-depth of cup, the s-area of indentation.
Detailed description of the invention
Below in conjunction with detailed description of the invention and compare accompanying drawing this utility model is described in further detail.It is emphasized that it is that the description below is merely exemplary rather than in order to limit scope of the present utility model and application thereof.
With reference to the following drawings, will describe the embodiment of non-limiting and nonexcludability, the most identical reference represents identical parts, unless stated otherwise.
Embodiment one:
The present embodiment proposes a kind of mechanical property of materials mensuration pressure head component, as depicted in figs. 1 and 2, including: for applying pressure in measurand to obtain pressure head 1 and the pressure head bar 3 of impression, for obtaining the pressure of described pressure head 1 and the sensor cluster that pressure is deep, for obtaining image and the optical module of measurand deformation sized data of described impression；Wherein, described pressure head bar 3 is hollow structure, and described optical module is located on described pressure head bar 3, and described pressure head 1 is made of clear material, and is located at the end of described pressure head bar 3, and the optical imaging path of described optical module is consistent with the direction of exerting pressure of described pressure head 1.
nullThe mechanical property of materials mensuration pressure head component that the present embodiment proposes is by pressure head bar 3、Pressure head 1 and optical module composition，Pressure head 1 is located at the end of pressure head bar 3，Wherein，Described optical module is located on described pressure head bar 3，The optical imaging path of described optical module is consistent with the direction of exerting pressure of described pressure head 1，So during the detection of work，Just just can carry out obtaining by the optical module being located therein related data (the h-depth of cup of impression without pressure head 1 is withdrawn impression，The s-area of indentation)，This frame mode solves the collection of the real time data of optical module，Other the deformation sized data such as area of indentation can be detected by optical module in real time，The pressure that detects pressure head the most real-time by the sensor cluster being arranged on described pressure head and depth of cup，The possibility of the most real-time measurement data in conjunction with the realization of sensor cluster and optical module，So two characterization factors can be increased in the sign of the mechanical property of materials，Improve mechanics properties testing accuracy，For the most each working alone compared to existing optical module and pressure head 1，Avoid when pressure head 1 withdraws measured piece surface，When no longer acting on measured piece，Owing to the impression of measured piece exists the phenomenon of resilience，The problem fully solving uniqueness，So that the degree of depth of impression (h-depth of cup)、Size and area (the s-area of indentation) can detect by real-time carrying out，Ensure that impression size or area are being acquired by optical module、The data obtained are accurate，Improve the precision of the mechanical property of materials.
In the present embodiment, more specifically, described optical module includes photographic head 4 and the microscope 2 being provided with pickup-light source, described photographic head 4 and described microscope 2 with set with in described pressure head bar 3, described photographic head 4, described microscope 2 is consistent with the direction of exerting pressure of described pressure head 1 with the optical imaging path that described pressure head 1 is formed, optical module includes photographic head 4 and the microscope 2 being provided with pickup-light source, with being located in pressure head bar 3, described photographic head 4, described microscope 2 is consistent with the direction of exerting pressure of described pressure head 1 with the optical imaging path that described pressure head 1 is formed, achieve the integrated setting of optical module and pressure head bar 3, impression can be amplified by microscope 2, it is easy to photographic head 4 and obtains image.
Described sensor cluster includes pressure transducer 6 and presses deep sensor 7, described pressure transducer 6 is located at the end of described pressure head bar 3, the deep sensor of described pressure 7 is located at outside described pressure head bar 3, pressure transducer 6 and the deep sensor 7 of pressure in sensor cluster can complete the Real-time Collection of data with the pressure of pressure head 1 and the degree of depth of impression.
Described pressure head bar 3 offers the through hole 8 of 1mm, makes indentation image and pickup-light source light form optical path through through hole 8 and pressure head 1 with the described optical module being arranged in described through hole 8.Certainly, the present embodiment is not limited to this, also can arrange the through hole 8 of different-diameter according to other practical situations, and the big I of through hole 8 in pressure head bar 3 meets places different amplification coefficients, the requirement of various sizes of microscope 2.
Described pressure head 1 is conically shaped, and the cone angle of the pressure head of described cone can be 120 degree, 140 degree or 160 degree etc., but is not limited to this, also can arrange the pressure head 1 of different cone angle according to practical situation, and its scope is preferably between 120～160 degree.Meanwhile, the present embodiment also can arrange the pressure head 1 of different model according to other practical situations, such as hemisphere row, pyramid etc..Described pressure head 1 preferably employs diamond and makes, and described optical module preferably employs microscope 2 and the photographic head 4 with auto-focusing.
The described mechanical property of materials includes the tensile strength of material, yield strength, elastic modelling quantity, hardness, material constant, Poisson's ratio, plasticity, fracture toughness or residual stress.
Embodiment two:
The present embodiment proposes a kind of mechanical property of materials determinator, as shown in Figure 1-2, including base, column and cantilever 5, it is located at the display screen on described cantilever 5, the pressing plate test stand being located on described base, described base, column and cantilever 5 are fixedly connected sequentially, and also include the detection pressure head of the mechanical property of materials as described in embodiment one being located on described cantilever 5.
The mechanical property of materials detection device that the present embodiment proposes make use of above-mentioned mechanical property of materials detection pressure head, measures the mechanical property of materials, so having than the existing more preferable degree of accuracy of detection device.
The described mechanical property of materials includes the tensile strength of material, yield strength, elastic modelling quantity, hardness, material constant, Poisson's ratio, plasticity, fracture toughness or residual stress.
It would be recognized by those skilled in the art that it is possible that above description is made numerous accommodation, so embodiment is intended merely to describe one or more particular implementation.
It is counted as example embodiment of the present utility model although having been described above and describing, it will be apparent to those skilled in the art that and it can be variously modified and replace, without departing from spirit of the present utility model.Furthermore it is possible to make many amendment particular case to be fitted to religious doctrine of the present utility model, without departing from this utility model central concept described here.So, this utility model is not only restricted to specific embodiment disclosed here, but this utility model may also include all embodiments and the equivalent thereof that belong to this utility model scope.
Claims (8)
1. a mechanical property of materials mensuration pressure head component, it is characterized in that, including: for applying pressure in measurand to obtain pressure head and the pressure head bar of impression, for obtaining the pressure of described pressure head and the sensor cluster that pressure is deep, for obtaining image and the optical module of measurand deformation sized data of described impression；Wherein, described pressure head bar is hollow structure, and described optical module is located on described pressure head bar, and described pressure head is made of clear material, being located at the end of described pressure head bar, the optical imaging path of described optical module is consistent with the direction of exerting pressure of described pressure head through described pressure head bar.
2. mechanical property of materials mensuration pressure head component as claimed in claim 1, it is characterized in that: described optical module includes being provided with photographic head and the microscope of pickup-light source, described photographic head and described microscope are with setting with described pressure head bar, and described photographic head, described microscope are consistent with the direction of exerting pressure of described pressure head with the optical imaging path that described pressure head is formed.
3. mechanical property of materials mensuration pressure head component as claimed in claim 2, it is characterized in that: described sensor cluster includes pressure transducer and presses deep sensor, described pressure transducer is located at the end of described pressure head bar, and the deep sensor of described pressure is located at outside described pressure head bar.
4. mechanical property of materials mensuration pressure head component as claimed in claim 2, it is characterized in that: described pressure head bar is provided with the through hole of 0.5～4mm vertically, make indentation image and pickup-light source light form optical path through described through hole and described pressure head with the described optical module being arranged in described through hole.
5. mechanical property of materials mensuration pressure head component as claimed in claim 1, it is characterised in that: described indenter shape is cone, pyramid type or dome-type.
6. mechanical property of materials mensuration pressure head component as claimed in claim 5, it is characterized in that: described pressure head is made up of diamond, the described mechanical property of materials includes the tensile strength of material, yield strength, elastic modelling quantity, hardness, material constant, Poisson's ratio, plasticity, fracture toughness or residual stress.
7. mechanical property of materials mensuration pressure head component as claimed in claim 2, it is characterised in that: described optical module uses microscope and the photographic head with automatic focusing function.
8. a mechanical property of materials determinator, including base, column and cantilever, it is located at the display screen on described cantilever, the pressing plate test stand being located on described base, described base, column and cantilever are fixedly connected sequentially, it is characterised in that: also include the mechanical property of materials mensuration pressure head component as described in any one of claim 1-7 being located on described cantilever.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620149105.8U CN205719835U (en) | 2016-02-26 | 2016-02-26 | A kind of mechanical property of materials determinator and pressure head component thereof |
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| CN201620149105.8U CN205719835U (en) | 2016-02-26 | 2016-02-26 | A kind of mechanical property of materials determinator and pressure head component thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716975A (en) * | 2016-02-26 | 2016-06-29 | 金南辉 | Material mechanical performance measurement device and pressing head assembly and measurement method thereof |
| CN109975130A (en) * | 2019-04-15 | 2019-07-05 | 华侨大学 | A connection strength detection and failure node image acquisition device |
-
2016
- 2016-02-26 CN CN201620149105.8U patent/CN205719835U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716975A (en) * | 2016-02-26 | 2016-06-29 | 金南辉 | Material mechanical performance measurement device and pressing head assembly and measurement method thereof |
| CN109975130A (en) * | 2019-04-15 | 2019-07-05 | 华侨大学 | A connection strength detection and failure node image acquisition device |
| CN109975130B (en) * | 2019-04-15 | 2024-02-23 | 华侨大学 | Connection strength detects and inefficacy node image acquisition device |
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