CN204128896U - A kind of multiple pressure head instrumentation press-in test macro - Google Patents
A kind of multiple pressure head instrumentation press-in test macro Download PDFInfo
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- CN204128896U CN204128896U CN201420522023.4U CN201420522023U CN204128896U CN 204128896 U CN204128896 U CN 204128896U CN 201420522023 U CN201420522023 U CN 201420522023U CN 204128896 U CN204128896 U CN 204128896U
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- pressure head
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Abstract
A kind of multiple pressure head instrumentation press-in test macro, comprise press-in Test Host, signal transmitting and receiving module and host computer, press-in Test Host comprises closed box, press-in test module and sample erecting bed, at least two cover press-in test modules lay respectively in the annular seal space of closed box, and are positioned on sample erecting bed side by side; Magnetic cylinder is positioned at the top of annular seal space, coil is positioned at magnetic cylinder, coil is connected with the upper end of transmission shaft, the lower end of transmission shaft is connected with pressure head web member through the bottom of annular seal space, and pressure head web member is connected with pressure head, and pressure head is positioned at the top of sample erecting bed, the middle part of annular seal space is provided with horizontally disposed support spring, the middle part of transmission shaft, through support spring, is positioned at the transmission shaft installation position displacement sensor of the bottom of annular seal space, displacement transducer, coil and signal transmitting and receiving model calling; Often the pressure head of cover press-in test module has mutually different shape.The utility model simplification testing procedure, raising testing efficiency, measuring stability are good.
Description
Technical field
The utility model relates to a kind of test macro utilizing press mode to measure material mechanical parameters, particularly a kind of system that at least two pressure heads can be adopted simultaneously to carry out being pressed into test.
Background technology
Instrumentation press-in is a kind of microscale (about tens nanometers to tens micron) mechanics test system.It adopts hard (being generally adamas) pressure head press-in measured material, measures in real time and record to act on the load of sample and the degree of depth of pressing in sample, utilizes the information such as load-deepness, identifies hardness and the mechanics parameter of material.Wherein, the instrumentation method of press-fitting measuring material hardness and elastic modulus has formed associated international standards (ISO 14577) and national standard (GB/T22458-2008).For expanding test function and the scope of instrumentation press-in, closely about ten years, the press-in method of testing of plastic, creep parameters and fragmentation parameters etc. is suggested in succession.Owing to utilizing the mechanics parameter of method of press-fitting identification material to belong to back analysis process, sometimes accurately plastic etc. can not be determined uniquely by the test of single shape pressure head.For ensureing uniqueness and the accuracy of test result, existing plastic recognition methods adopts two difform pressure heads to carry out instrumentation press-in test respectively, from twice test data, accurately identify plastic uniquely.
Current instrumentation press-in is single pressure head test macro, can only install a pressure head, and once test can only obtain a loading-depth curve.Utilize current instrumentation press-in test macro to measure the plastic of material, first install first pressure head and sample, test zone that sample is had good positioning, complete and be pressed into test for the first time; Then imperial lower first pressure head, installs second pressure head of another shape, has reorientated test zone, completes second time and is pressed into test.This process has the following disadvantages: (1) complex steps, efficiency is lower.Because press-in test is to vibration and responsive to temperature, press-in test carries out in the closed box of a vibrationproof, and object is the impact in order to reduce ambient vibration and temperature fluctuation.Change pressure head and need open closed box, stable temperature environment can be destroyed, after installing second pressure head, temperature is by the time needed again to stablize, temperature drift is less than setting threshold value (usually waiting for that dozens of minutes was by several hours), could start test, thus cause testing efficiency to reduce.(2) test is unstable.Can destroy stable temperature and vibration environment owing to changing pressure head, the environmental baseline of twice test in front and back changes, and easily causes test unstable.(3) sample need be reorientated.Before changing pressure head, the position of sample and pressure head needs to reset, and after installing second pressure head, also needs to reorientate test zone.(4) instrument loss is aggravated.Instrumentation press-in belongs to high-accuracy test macro, and frequent pressure head of changing can aggravate instrument loss, affects measuring accuracy.
In sum, be necessary to develop a kind of instrumentation press-in test macro avoiding changing pressure head in test process.The utility model is carried out under such requirement background.
Summary of the invention
In order to the complex steps, the efficiency that overcome existing existing single pressure head test macro are lower, the unstable deficiency of test, the utility model provides a kind of and simplifies testing procedure, improve testing efficiency, multiple pressure head instrumentation press-in test macro that measuring stability is good.
The utility model solves the technical scheme that its technical matters adopts:
A kind of multiple pressure head instrumentation press-in test macro, comprise press-in Test Host, signal transmitting and receiving module and host computer, described signal transmitting and receiving module is connected with described host computer, described press-in Test Host comprises closed box, press-in test module and sample erecting bed, described press-in test module has at least two covers, at least two cover press-in test modules lay respectively in the annular seal space of closed box, and are positioned on sample erecting bed side by side, described press-in test module comprises magnetic cylinder, coil, transmission shaft, support spring, displacement transducer, pressure head web member and pressure head, described magnetic cylinder is positioned at the top of described annular seal space, described coil is positioned at magnetic cylinder, described coil is connected with the upper end of described transmission shaft, the lower end of described transmission shaft is connected with pressure head web member through the bottom of described annular seal space, described pressure head web member is connected with pressure head, described pressure head is positioned at the top of sample erecting bed, the middle part of described annular seal space is provided with horizontally disposed support spring, the middle part of described transmission shaft is through described support spring, be positioned at the transmission shaft installation position displacement sensor of the bottom of annular seal space, institute's displacement sensors, coil and described signal transmitting and receiving model calling, often the pressure head of cover press-in test module has mutually different shape.
Further, described press-in test module has two covers at least.Can be two covers, certainly, also as required, the even many covers of three covers can be set.
Further again, institute's displacement sensors adopts high-precision non-contact displacement transducer.
Institute's displacement sensors comprises Target Board and probe, and described Target Board is fixed on the transmission shaft of the bottom being positioned at annular seal space, and described probe is positioned at the top of described Target Board.Also other versions can be selected.
Further, described support spring is made up of two-layer groups of springs, and every layer of groups of springs is made up of 4 orthogonal springs, and described support spring pulls described transmission shaft to four direction.For supporting described coil, transmission shaft and pressure head, make described coil, transmission shaft and pressure head only vertical direction motion there is not teeter.
Described pressure head web member upper end affixed with transmission shaft lower end (such as weld or be threaded), described pressure head web member lower end is provided with standard interface, and pressure head can be installed by this standard interface, and this structure is convenient to install and change pressure head.
Described signal transmitting and receiving module comprises power amplifier, signal generator, signal picker and slave computer, and described power amplifier is connected with described signal generator and signal picker, and described signal generator is connected with described slave computer with signal picker.
The beneficial effects of the utility model are mainly manifested in: simplify testing procedure, improve testing efficiency, measuring stability is good.
Accompanying drawing explanation
Fig. 1 is the structural representation of multiple pressure head instrumentation press-in test macro.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
With reference to Fig. 1, a kind of multiple pressure head instrumentation press-in test macro, comprise press-in Test Host 1, signal transmitting and receiving module 2 and host computer 3, described signal transmitting and receiving module 2 is connected with described host computer 3, described press-in Test Host 1 comprises closed box 7, press-in test module and sample erecting bed 14, described press-in test module has at least two covers, and at least two cover press-in test modules lay respectively in the annular seal space of closed box 7, and are positioned on sample erecting bed 14 side by side, described press-in test module comprises magnetic cylinder 6, coil 5, transmission shaft 9, support spring 8, displacement transducer, pressure head web member 12 and pressure head 13, described magnetic cylinder 6 is positioned at the top of described annular seal space, described coil 5 is positioned at magnetic cylinder 6, described coil 5 is connected with the upper end of described transmission shaft 9, the lower end of described transmission shaft 9 is connected with pressure head web member 12 through the bottom of described annular seal space, described pressure head web member 12 is connected with pressure head 13, described pressure head 13 is positioned at the top of sample erecting bed 14, the middle part of described annular seal space is provided with horizontally disposed support spring 8, the middle part of described transmission shaft 9 is through described support spring 8, be positioned at the transmission shaft 9 installation position displacement sensor of the bottom of annular seal space, institute's displacement sensors, coil 5 is connected with described signal transmitting and receiving module 2, often the pressure head of cover press-in test module has mutually different shape.
Further, described press-in test module has two covers at least.Can be two covers, certainly, also as required, the even many covers of three covers can be set.
Further again, institute's displacement sensors adopts high-precision non-contact displacement transducer.
Institute's displacement sensors comprises Target Board 11 and probe 10, and described Target Board 11 is fixed on the transmission shaft of the bottom being positioned at annular seal space, and described probe 10 is positioned at the top of described Target Board.Also other versions can be selected.
Further, described support spring 8 is made up of two-layer groups of springs, and every layer of groups of springs is made up of 4 orthogonal springs, and described support spring pulls described transmission shaft to four direction.For supporting described coil, transmission shaft and pressure head, make described coil, transmission shaft and pressure head only vertical direction motion there is not teeter.
Described pressure head web member 12 upper end affixed with transmission shaft 13 lower end (such as weld or be threaded), described pressure head web member 12 lower end is provided with standard interface, and pressure head can be installed by this standard interface, and this structure is convenient to install and change pressure head.
In closed box 7, adjacent annular seal space adopts dividing plate 4 to isolate.
As shown in Figure 1, this example is a kind of two pressure head instrumentation press-in test macro, comprising: press-in Test Host 1, signal transmitting and receiving module 2 and computer system 3.
Press-in Test Host 1 overlaps press-in test module by closed box 7, two and sample erecting bed 14 forms.Wherein, be pressed into test module to be made up of magnetic cylinder 6, coil 5, transmission shaft 9, support spring 8, displacement sensor probe 10, displacement transducer Target Board 11, pressure head web member 12 and pressure head 13.Two cover press-in test modules are except the indenter shape difference of installing, and other building blocks are all identical.Magnetic cylinder 6 is fixed on the top of closed box 7.Coil 5, displacement transducer Target Board 11 and pressure head web member 12 are fixed together by transmission shaft 9, are supported by support spring 8, vertically hang on aerial, only motion vertically, transverse movement do not occur.Pressure head 13 is affixed by pressure head web member 12 and transmission shaft 9.Displacement transducer adopts high-precision non-contact displacement transducer (as eddy current displacement sensor), and displacement sensor probe 10 is fixed on the sidewall of closed box 7, supports the use with displacement transducer Target Board 11.Sample erecting bed 14 adopts and high-precisionly moves horizontally platform, is arranged on the bottom of closed box 7, is controlled by computing machine, sample accurately can be positioned at below pressure head.
Signal transmitting and receiving module is made up of power amplifier 15, signal generator 16, signal picker 17 and slave computer 18.Adopt netting twine to carry out data transmission between slave computer 18 and computer system 3, Long-distance Control and data acquisition can be realized.Be digital signal between slave computer 18 and signal generator 16, signal picker 17, adopt data line transfer data.Between power amplifier 15 and signal generator 16, signal picker 17, and be simulating signal between power amplifier 15 and press-in Test Host 1, employing shielded signal line signal transmission.
Computer system 3 is provided with corresponding control and the poster processing soft, can realize man-machine interaction, batch testing, automatically acquisition and processing test data, generate test result report.
The workflow of this pair of pressure head instrumentation press-in test macro is:
(1) start preheating, testing instruments state.Can generate heat during energized equipment work, cause temperature fluctuation, should shift to an earlier date half an hour more than starts shooting preheating.Treat instrument stabilizer, adopt standard reference sample, whether inspection two pressure head instrumentation press-in test macro normally works indirectly.If normal, then carry out official testing.
(2) install, locate tested sample.Sample is arranged on sample erecting bed 14, requires specimen surface level, to ensure that pressure head is vertically pressed into.By computer system 3 Control Assay erecting bed 14, sample is positioned at below pressure head.Be specially: the software installed by computer system 3, send the instruction of moving direction and distance, after digital command is communicated to slave computer 18 by netting twine, again by data line transfer to signal generator 16, after signal generator 16 converts digital signal to simulating signal, be sent to power amplifier 15, simulating signal is through amplifying, finally pass to sample erecting bed 14, control its moving direction and distance, sample is positioned at below pressure head.
(3) test parameter is set.Have good positioning behind sample testing position, by the control software design that computer system 3 is installed, test parameter is set, as load mode, load time, maximum loading of pressing in (or degree of depth) etc.In addition, can also arrange two cover press-in test modules is test simultaneously or individually test.
(4) press-in test is completed.Set test parameter, click start button, two pressure head instrumentation press-in test macro by presetting, can complete test automatically.
(5) process test data, generate test result report.After completing press-in test, the analytical approach that the poster processing soft that computer system 3 is installed can be selected according to user, Automatic analysis test data, and generate test result report.
Claims (7)
1. a multiple pressure head instrumentation press-in test macro, comprise press-in Test Host, signal transmitting and receiving module and host computer, described signal transmitting and receiving module is connected with described host computer, described press-in Test Host comprises closed box, press-in test module and sample erecting bed, it is characterized in that: described press-in test module has at least two covers, at least two cover press-in test modules lay respectively in the annular seal space of closed box, and are positioned on sample erecting bed side by side, described press-in test module comprises magnetic cylinder, coil, transmission shaft, support spring, displacement transducer, pressure head web member and pressure head, described magnetic cylinder is positioned at the top of described annular seal space, described coil is positioned at magnetic cylinder, described coil is connected with the upper end of described transmission shaft, the lower end of described transmission shaft is connected with pressure head web member through the bottom of described annular seal space, described pressure head web member is connected with pressure head, described pressure head is positioned at the top of sample erecting bed, the middle part of described annular seal space is provided with horizontally disposed support spring, the middle part of described transmission shaft is through described support spring, be positioned at the transmission shaft installation position displacement sensor of the bottom of annular seal space, institute's displacement sensors, coil and described signal transmitting and receiving model calling, often the pressure head of cover press-in test module has mutually different shape.
2. a kind of multiple pressure head instrumentation press-in test macro as claimed in claim 1, is characterized in that: described press-in test module has two covers at least.
3. a kind of multiple pressure head instrumentation press-in test macro as claimed in claim 1 or 2, is characterized in that: institute's displacement sensors adopts high-precision non-contact displacement transducer.
4. a kind of multiple pressure head instrumentation press-in test macro as claimed in claim 3, it is characterized in that: institute's displacement sensors comprises Target Board and probe, described Target Board is fixed on the transmission shaft of the bottom being positioned at annular seal space, and described probe is positioned at the top of described Target Board.
5. a kind of multiple pressure head instrumentation press-in test macro as claimed in claim 1 or 2, it is characterized in that: described support spring is made up of two-layer groups of springs, every layer of groups of springs is made up of 4 orthogonal springs, and described support spring pulls described transmission shaft to four direction.
6. a kind of multiple pressure head instrumentation press-in test macro as claimed in claim 1 or 2, is characterized in that: described pressure head web member upper end and transmission shaft lower end affixed, described pressure head web member lower end is provided with standard interface.
7. a kind of multiple pressure head instrumentation press-in test macro as claimed in claim 1 or 2, it is characterized in that: described signal transmitting and receiving module comprises power amplifier, signal generator, signal picker and slave computer, described power amplifier is connected with described signal generator and signal picker, and described signal generator is connected with described slave computer with signal picker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420522023.4U CN204128896U (en) | 2014-09-11 | 2014-09-11 | A kind of multiple pressure head instrumentation press-in test macro |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420522023.4U CN204128896U (en) | 2014-09-11 | 2014-09-11 | A kind of multiple pressure head instrumentation press-in test macro |
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| CN204128896U true CN204128896U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420522023.4U Withdrawn - After Issue CN204128896U (en) | 2014-09-11 | 2014-09-11 | A kind of multiple pressure head instrumentation press-in test macro |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198286A (en) * | 2014-09-11 | 2014-12-10 | 浙江工业大学 | Multi-pressure-head instrumented press-in test system |
| CN112067427A (en) * | 2020-10-09 | 2020-12-11 | 中国航空工业集团公司北京长城计量测试技术研究所 | Multifunctional table type rubber hardness tester |
-
2014
- 2014-09-11 CN CN201420522023.4U patent/CN204128896U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198286A (en) * | 2014-09-11 | 2014-12-10 | 浙江工业大学 | Multi-pressure-head instrumented press-in test system |
| CN104198286B (en) * | 2014-09-11 | 2016-09-07 | 浙江工业大学 | A kind of many pressure heads instrumentation press-in test system |
| CN112067427A (en) * | 2020-10-09 | 2020-12-11 | 中国航空工业集团公司北京长城计量测试技术研究所 | Multifunctional table type rubber hardness tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150128 Effective date of abandoning: 20160907 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150128 Effective date of abandoning: 20160907 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |