CN101476884A - Measuring apparatus and method for testing machine - Google Patents
Measuring apparatus and method for testing machine Download PDFInfo
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- CN101476884A CN101476884A CNA2009100138400A CN200910013840A CN101476884A CN 101476884 A CN101476884 A CN 101476884A CN A2009100138400 A CNA2009100138400 A CN A2009100138400A CN 200910013840 A CN200910013840 A CN 200910013840A CN 101476884 A CN101476884 A CN 101476884A
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- photographing device
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- testing machine
- block gauge
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Abstract
The invention relates to a measuring device for a tester, which comprises a data acquisition system and a data processing system, wherein the data acquisition system is connected with the data processing system through a wire and comprises photographic equipment and a standard gauge block, wherein photographic equipment A is arranged on one upright post of the tester; photographic equipment B is arranged on a supporting frame which is fixed on the tester; the standard gauge block is arranged on the other upright post of the tester through a support; and one metering reference plane of the standard gauge block faces to the photographic equipment A, and the other metering reference plane which is perpendicular to the metering reference plane faces to the photographic equipment B. The invention simultaneously discloses a measuring method utilizing the device. The measuring device not only can be independently used for measuring the initial cross-sectional area or deformation of a sample but also can be used for measuring the initial cross-sectional area and deformation of the sample. The measuring device and the measuring method have simple principle and small number of matched hardware so as to greatly reduce the overall dimensions of the tester and reduce material consumption and processing cost.
Description
Technical field
The present invention relates to a kind of measurement mechanism and measuring method of testing machine.
Background technology
At present, testing machine by " GB/T 228-2002 metal material tensile test at room temperature method " and " GB/T 7314-2005 metal material room temperature compression test method " producing and selling and use, what the mensuration of the original cross-sectional area of sample adopted is that traditional mechanical type is measured or the electronic type automatic measurement system, and these two kinds of metering systems all belong to contact type measurement; Sample deformation is measured the general extensometer that adopts and is measured, and extensometer also has two kinds of mechanical type and electronic types, and these two kinds of metering systems also all belong to contact type measurement., in existing testing machine, be independent existence, each is self-metering.And for small size sample and deformation measurement, measuring accuracy all is a micron order, belongs to precision measurement, and therefore processing, manufacturing and the debugging of two cover measuring systems are all very complicated; Will demarcate when the user uses, extensometer also needs special calibration device; Make in a word and use all very loaded down with trivial details.And two cover measuring systems are independent separately, increased manufacturing cost, the volume of testing machine again, influenced the reliability of equipment and serviceable life etc.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art, a kind of measurement mechanism and measuring method that is used for testing machine is provided, it is a kind of brand-new non-contact measurement apparatus and measuring method, the needs of micron order precision measurement both can have been satisfied, meet the requirement of above-mentioned two kinds of national Specifications, the original cross-sectional area mensuration of sample and this two covers measuring system of deformation measurement can be united two into one again.Both reduce the production and the debugging difficulty of measuring system, be user-friendly to again, reduced the cost of equipment simultaneously.
For achieving the above object, the present invention adopts following technical proposals: a kind of measurement mechanism that is used to test testing machine, it comprises data acquisition system (DAS) and data handling system, data acquisition system (DAS) is connected by lead with data handling system, data acquisition system (DAS) comprises photographing device and standard block gauge, wherein, photographing device A is installed on the column of testing machine; Photographing device B is installed on the bracing frame, bracing frame is fixed on the testing machine, standard block gauge is installed on another column of testing machine by support, a mete-wand face of standard block gauge faces photographing device A, and another mete-wand face vertical with aforementioned mete-wand face faces photographing device B.
Described photographing device A becomes an angle of 90 degrees to arrange with photographing device B.
Described standard block gauge is installed on the fixed chuck of testing machine.
The gauge length of described standard block gauge and sample is in the angular field of view of photographing device A and photographing device B, and each that taken by photographing device A and photographing device B is opened and all finished the mete-wand face comprising standard block gauge and the gauge length of sample in photo.
Described photographing device is a camera.
Described data handling system is a computing machine.
A kind of utilization is used for the measuring method of the measurement mechanism of testing machine, comprises the measurement and the deformation measurement of the original cross-sectional area of sample, and measuring method is as follows:
A. the measurement of original cross-sectional area:
1). photographing device A, photographing device B, standard block gauge and computer installation is good;
2). sample holder is good, and its gauge length is in the angular field of view of photographing device A and photographing device B;
3). photographing device A, photographing device B take pictures sample and standard block gauge together, subsequently picture transmission are arrived computing machine;
4). by computing machine the input data are handled, and calculated, and storage is with standby by the original cross-sectional area of the sample of requirement in the national standard;
B. deformation measurement
1). photographing device A, photographing device B, standard block gauge and computer installation is good;
2). testing machine is started working, and when sample was stretched or compressed, photographing device B took pictures sample and standard block gauge together according to the sampling interval of prior setting, and at any time picture transmission is arrived computing machine;
3). by computing machine the input data are handled, and calculated deformation quantity, and storage is with standby by requirement in the national standard.
The input data are handled and be may further comprise the steps in the step 3) among step 4) and the B among the described A by computing machine:
1). the profile of standard block gauge and sample in the resolution photo;
2). determine the gauge length of the sample in the photo and the measurement point of measurement point and standard block gauge;
3). the distance between the distance in the calculating photo between the measurement point of sample and the measurement point of standard block gauge;
4). according to the physical size of standard block gauge, calculate the size on the sample that will measure;
5). draw required figure, the table of test report;
6). show, print test report.
The present invention is in entire work process, and sample and standard block gauge are in same the photo always, and comparison film carries out same ratio identification and measures, and the two has identical accuracy class.The physical measurement accuracy of standard block gauge can reach micron order even more accurate, and therefore measuring accuracy of the present invention can satisfy the requirement of the precision of original cross-sectional area mensuration of the sample of stipulating in above-mentioned two kinds of national standards and deformation measurement.
The measurement of displacement deformation also can be used for these two kinds of measurements simultaneously when the present invention both can be used for the measurement of the original cross-sectional area of sample that above-mentioned two kinds of national standards stipulate and sample separately and is stretched or compressed.
Principle of the present invention is simple, and hardware support kit is few.Employed photographing device, standard block gauge and computing machine all are the commodity that can buy on the market, high cost performance and reliability are arranged, solved effectively that contact type measurement device design complexity, manufacture difficulty height, Installation and Debugging are not easy, the user demarcates inconvenience, the shortcoming demonstrate,proved is cannot say for sure in after sale service.Can reduce manufacturer's design, manufacturing time, shorten the delivery cycle, promote product profit and economic benefit.
The present invention can make the physical dimension of testing machine greatly reduce, and has reduced the material consumption and the processing cost of manufacturer, helps energy-saving and emission-reduction.
Description of drawings
Fig. 1 is that data acquisition system (DAS) of the present invention is formed synoptic diagram.
Fig. 2 is a fundamental diagram of the present invention.
Fig. 3 is the computer data processing flow chart.
Wherein 1, column, 2, mobile chuck, 3, photographing device A, 4, support, 5, standard block gauge, 6, sample, 7, fixed chuck, 8, photographing device B, 9, bracing frame, 10, computing machine.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Among Fig. 1, the present invention is made up of data acquisition system (DAS) and data handling system two parts.Data acquisition system (DAS) is connected by lead with data handling system, and data handling system is a computing machine 10.Data acquisition system (DAS) is made up of photographing device A3, photographing device B8 and standard block gauge 5.Photographing device A3 is installed on the column 1 of testing machine; Photographing device B8 is installed on the bracing frame 9, and bracing frame 9 is fixed on the testing machine.Photographing device A3 becomes an angle of 90 degrees to arrange with photographing device B8.Standard block gauge 5 is installed in by support 4 on another column 1 of testing machine (standard block gauge 5 also can be directly installed on the fixed chuck 7), a mete-wand face of standard block gauge 5 faces photographing device A3, and another perpendicular mete-wand face faces photographing device B8.The gauge length of standard block gauge 5 and sample 6 is in the angular field of view of photographing device A3 and photographing device B3, and each that taken by photographing device A3 and photographing device B8 is opened and all finished the mete-wand face comprising standard block gauge 5 and the gauge length of sample 6 in photo.
Mensuration by the original cross-sectional area of sample of " GB/T 228-2002 metal material tensile test at room temperature method " and " GB/T 7314-2005 metal material room temperature compression test method " two kinds of national standard requirements both can be measured before fixed chuck 7 and mobile chuck 2 at sample 6 clampings, also can measure after fixed chuck 7 and mobile chuck 2 at sample 6 clampings, the foundation of selection is that can the gauge length of sample 6 be in the angular field of view of photographing device A3.
When sample 6 is held, when its gauge length is in the angular field of view of photographing device A3 and photographing device B8, photographing device A
3, photographing device B8 takes pictures sample 6 and standard block gauge 5 together, subsequently picture transmission is arrived computing machine 10, as shown in Figure 2, carries out data processing by computing machine 10.Treatment scheme according to Fig. 3, calculate the original cross-sectional area of sample, and storage is with standby by requirement in " GB/T 228-2002 metal material tensile test at room temperature method " and " GB/T 7314-2005 metal material room temperature compression test method " two kinds of national standards.Specifically describe as follows:
The measurement of original cross-sectional area:
1). photographing device A3, photographing device B8, standard block gauge 5 and computing machine 10 are set;
2). sample 6 clampings are good, and its gauge length is in the angular field of view of photographing device A3 and photographing device B8;
3). photographing device A3, photographing device B8 take pictures sample 6 and standard block gauge 5 together, subsequently picture transmission are arrived computing machine 10;
4). handle by 10 pairs of inputs of computing machine data, and calculate, and storage is with standby by the original cross-sectional area of the sample of requirement in the national standard;
The input data are handled by computing machine in the described step 4) may further comprise the steps:
1). the profile of standard block gauge 5 and sample 6 in the resolution photo;
2). determine the gauge length of the sample 6 in the photo and the measurement point of measurement point and standard block gauge 5;
3). the distance between the distance in the calculating photo between the measurement point of sample 6 and the measurement point of standard block gauge 5;
4). according to the physical size of standard block gauge 5, calculate the size on the sample 6 that will measure;
5). draw required figure, the table of test report;
6). show, print test report.
When testing machine is started working, when sample 6 was stretched or compressed, photographing device B8 took pictures sample 6 and standard block gauge 5 together according to the sampling interval of prior setting, and at any time with picture transmission to computing machine 10, as shown in Figure 2, carry out data processing by computing machine 10.According to the treatment scheme of Fig. 3, calculate deformation quantity, and storage is with standby by requirement in " GB/T 228-2002 metal material tensile test at room temperature method " and " GB/T 7314-2005 metal material room temperature compression test method " two kinds of national standards.Specifically describe as follows:
Deformation measurement
1). photographing device A3, photographing device B8, standard block gauge 5 and computing machine 10 are set;
2). testing machine is started working, and when sample 6 was stretched or compressed, photographing device B took pictures sample 6 and standard block gauge 5 together according to the sampling interval of prior setting, and at any time picture transmission is arrived computing machine 10;
3). handle by 10 pairs in computing machine input data, and calculate deformation quantity, and storage is with standby by requirement in the national standard.
The input data are handled by computing machine in the described step 3) may further comprise the steps:
1). the profile of standard block gauge 5 and sample 6 in the resolution photo;
2). determine the gauge length of the sample 6 in the photo and the measurement point of measurement point and standard block gauge 5;
3). the distance between the distance in the calculating photo between the measurement point of sample 6 and the measurement point of standard block gauge 5;
4). according to the physical size of standard block gauge 5, calculate the size on the sample 6 that will measure;
5). draw required figure, the table of test report;
6). show, print test report.
After test was finished, computing machine 10 calculated the data that need according to the requirement of test report in above-mentioned two kinds of national standards, and the figure of rendering request and form demonstrate test findings and print test report on request on display.
Claims (9)
1. measurement mechanism that is used for testing machine, it is characterized in that: it comprises data acquisition system (DAS) and data handling system, data acquisition system (DAS) is connected by lead with data handling system, data acquisition system (DAS) comprises photographing device and standard block gauge, wherein, photographing device A is installed on the column of testing machine; Photographing device B is installed on the bracing frame, bracing frame is fixed on the testing machine, standard block gauge is installed on another column of testing machine by support, a mete-wand face of standard block gauge faces photographing device A, and another mete-wand face vertical with aforementioned mete-wand face faces photographing device B.
2. the measurement mechanism that is used for testing machine according to claim 1 is characterized in that: described photographing device A becomes an angle of 90 degrees to arrange with photographing device B.
3. the measurement mechanism that is used for testing machine according to claim 1 is characterized in that: described standard block gauge is installed on the fixed chuck of testing machine.
4. according to claim 1 or the 3 described measurement mechanisms that are used for testing machine, it is characterized in that: the gauge length of described standard block gauge and sample is in the angular field of view of photographing device A and photographing device B, and each that taken by photographing device A and photographing device B is opened and all finished the mete-wand face comprising standard block gauge and the gauge length of sample in photo.
5. the measurement mechanism that is used for testing machine according to claim 1 is characterized in that: described photographing device is a camera.
6. the measurement mechanism that is used for testing machine according to claim 1 is characterized in that: described data handling system is a computing machine.
7. a utilization is used for the measuring method of the measurement mechanism of testing machine, and it is characterized in that: comprise the measurement and the deformation measurement of the original cross-sectional area of sample, measuring method is as follows:
A. the measurement of original cross-sectional area:
1). photographing device A, photographing device B, standard block gauge and computer installation is good;
2). sample holder is good, and its gauge length is in the angular field of view of photographing device A and photographing device B;
3). photographing device A, photographing device B take pictures sample and standard block gauge together, subsequently picture transmission are arrived computing machine;
4). by computing machine the input data are handled, and calculated, and storage is with standby by the original cross-sectional area of the sample of requirement in the national standard;
B. deformation measurement:
1). photographing device A, photographing device B, standard block gauge and computer installation is good;
2). when testing machine was started working, when sample was stretched or compressed, photographing device B took pictures sample and standard block gauge together according to the sampling interval of prior setting, and at any time picture transmission was arrived computing machine;
3). by computing machine the input data are handled, and calculated deformation quantity, and storage is with standby by requirement in the national standard.
8. utilization according to claim 7 is used for the measuring method of the measurement mechanism of testing machine, it is characterized in that: the input data are handled and be may further comprise the steps by computing machine in the step 3) among step 4) and the B among the described A:
1). the profile of standard block gauge and sample in the resolution photo;
2). determine the gauge length of the sample in the photo and the measurement point of measurement point and standard block gauge;
3). the distance between the distance in the calculating photo between the measurement point of sample and the measurement point of standard block gauge;
4). according to the physical size of standard block gauge, calculate the size on the sample that will measure;
5). draw required figure, the table of test report;
6). show, print test report.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100138400A CN101476884A (en) | 2009-01-15 | 2009-01-15 | Measuring apparatus and method for testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100138400A CN101476884A (en) | 2009-01-15 | 2009-01-15 | Measuring apparatus and method for testing machine |
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| Publication Number | Publication Date |
|---|---|
| CN101476884A true CN101476884A (en) | 2009-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100138400A Pending CN101476884A (en) | 2009-01-15 | 2009-01-15 | Measuring apparatus and method for testing machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832895A (en) * | 2010-03-26 | 2010-09-15 | 北京纳克分析仪器有限公司 | Visual tensile testing system |
| CN103808567A (en) * | 2014-02-28 | 2014-05-21 | 中国石油大学(华东) | Mechanical property testing device and mechanical property testing method for soldered joint |
-
2009
- 2009-01-15 CN CNA2009100138400A patent/CN101476884A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832895A (en) * | 2010-03-26 | 2010-09-15 | 北京纳克分析仪器有限公司 | Visual tensile testing system |
| CN103808567A (en) * | 2014-02-28 | 2014-05-21 | 中国石油大学(华东) | Mechanical property testing device and mechanical property testing method for soldered joint |
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Open date: 20090708 |