CN203519442U - Vickers indentation hardness measurement system - Google Patents
Vickers indentation hardness measurement system Download PDFInfo
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- CN203519442U CN203519442U CN201320649001.XU CN201320649001U CN203519442U CN 203519442 U CN203519442 U CN 203519442U CN 201320649001 U CN201320649001 U CN 201320649001U CN 203519442 U CN203519442 U CN 203519442U
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- 238000007545 Vickers hardness test Methods 0.000 title claims abstract description 14
- 238000007542 hardness measurement Methods 0.000 title abstract 5
- 238000012360 testing method Methods 0.000 claims abstract description 64
- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 25
- 239000000725 suspension Substances 0.000 claims description 12
- 238000012423 maintenance Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract 4
- 230000001174 ascending effect Effects 0.000 abstract 1
- 238000007373 indentation Methods 0.000 abstract 1
- 210000003128 head Anatomy 0.000 description 16
- 238000004458 analytical method Methods 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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Abstract
The utility model discloses a Vickers indentation hardness measurement system which comprises a housing. An output shaft of a synchronous motor is connected with a lever and the synchronous motor controls the lever to realize loading, retaining and unloading of a test force; one end of the lever is connected with a lifting rod, and the other end of the lever is connected with a pressing head; a large weight and a weight group are connected with the lifting rod; a high and low gear force switch is connected with the large weight; a load change group is connected with the weight group and is connected with a hand wheel. The Vickers indentation hardness measurement system also comprises a lifting group for ascending or descending a platform and a rotating tower with a function of switching the pressing head and an objective lens, wherein a large three-way conversion component is arranged above the rotating tower; the first end of the large three-way conversion component is connected with a channel of a micrometer eyepiece, the second end of the large three-way conversion component is communicated with a perpendicular light path so as to collect indentations, and the third end of the large three-way conversion component is connected with a CCD (charge coupled device) acquisition component; the CCD acquisition component acquires an image and sends the image to a processor for processing. The Vickers indentation hardness measurement system has the advantages that the selection of 16 gears of test forces is realized; a requirement that one machine has multiple purposes is met; automatic measurement is realized; the Vickers indentation hardness measurement system is high in precision, high in speed, convenient to operate and large in application range.
Description
Technical field
The utility model relates to a kind of Vickers indentation hardness measuring system, can measure the hardness of metal and nonmetallic materials, is measuring on the basis of hardness, can also, by the Fitting Analysis of many grades of test forces, measure fracture toughness and the unrelieved stress of hard brittle material.
Background technology
To the supplied materials of material and discharging check, be mainly to carrying out hardness after material sample preparation at present, the mechanical property tests such as stretching, some hard brittle materials are needed fracture toughness and the unrelieved stress of test material simultaneously, will produce like this measurement hardness and need sclerometer, measuring fracture toughness needs testing machine and adopts special-purpose measurement unrelieved stress machine to carry out test analysis to material, thereby cause the price of buying plurality of devices high, cloth in laboratory is set up and occupies a large amount of spaces, need to learn the usability of different machines, need on different machines, test required data, plurality of devices is applied in corrective maintenance and safeguards the upper man power and material of increasing cost simultaneously, these present situations have caused the unaffordable high expense of small business, thereby make these test items relatively not universal.
This Vickers indentation hardness measuring system is exactly based on above present situation, having realized hardness, fracture toughness and unrelieved stress can test on a machine, directly on a machine, test, for enterprise has saved a large amount of equipment purchase cost and maintenance cost, reduce operating personnel's labour, greatly reduced the testing cost of enterprises and institutions.
Aspect hardness test: what based on Vickers hardness, test was used is the positive rectangular pyramid diamond penetrator of 136 degree, when test, can as Brinell tester, at different test forces, not produce the different angles that is pressed into meeting under ball pressure head, and when difference is pressed into angle, cannot directly compare in the strict situation of the ball hardness number that causes test, when high rigidity, Bu Shi and Rockwell are all difficult to test simultaneously, Vickers hardness has almost contained from very soft to very hard all material, so Vickers is a current most popular class sclerometer.Vickers hardness number HV=0.1891 * F/D
2(wherein F is test force, unit: ox, D is impression diagonal averages, unit: mm), when carrying out hardness test, according to the thickness of material and hardness, select different test forces, under the test force that can bear at material, select large test force as far as possible, under large test force, impression is also large, it is just little that thereby the error that human eye causes when measuring impression diagonal line accounts for the relative error of measurement length, measuring accuracy is high, to thin material, test force has can not be too large, in order to avoid cause pressure head to punch sample, cannot obtain the real hardness of material, therefore select suitable test force to test in Vickers hardness test extremely important.Vickers test force on sale is optional is in the market mainly 6-8 shelves test forces, when test material, needing the material of test may be the material that has a variety of patterns, as from soft to firmly, from very thin material to thicker material, these materials just need to have the optional scope of large test force when selecting test force, this Vickers indentation hardness measuring system has realized 16 grades of test forces, there is 1kgf (HV1), 2kgf (HV2), 3kgf (HV3), 5kgf (HV5), 8kgf (HV8), 10kgf (HV10), 13kgf (HV13), 15kgf (HV15), 16kgf (HV16), 17kgf (HV17), 18kgf (HV18), 20kgf (HV20), 23kgf (HV23), 25kgf (HV25), 28kgf (HV28), 30kgf (HV30), fully meet the selection problem of test force gear when testing of materials, for improving testing material hardness hardness, solved the most important condition.
Aspect fracture toughness and unrelieved stress: avoided platform machine to go to test fracture toughness and unrelieved stress, by the test to impression under many grades of test forces, and then on computer software, multi-group data matching post analysis is gone out to fracture toughness and unrelieved stress, improved greatly work efficiency.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of measuring accuracy high, realizes the Vickers indentation hardness measuring system that hardness, fracture toughness and unrelieved stress are tested on a machine.
In order to solve above technical matters, the utility model provides a kind of Vickers indentation hardness measuring system, comprises
Carry the casing that all spare and accessory parts mechanism loads; And
Play a lever of test force transfer function, the output shaft of synchronous motor connects lever, and control lever and realize the loading of test force, maintenance, unloading, lever one end is connected with suspension rod, the other end with on measured material, carry out the pressure head that impression suppresses and be connected, what be connected with suspension rod also has large counterweight and weight group, what be connected with large counterweight is that high and low shift power is switched, what be connected with weight group is variable load group, variable load group is connected with handwheel, and the action that variable load group counterweight frame is controlled in handwheel rotation acts on suspension rod the different counterweight of weight group; And
The lifting group that implementation platform rises or declines; And
Carrying the capstan head of pressure head and object lens switching effect, above capstan head, be provided with full three links transition components, first end is connected with the passage of micrometer eyepiece, the second end collection impression that communicates with vertical optical path, the 3rd end connects CCD acquisition component, and CCD acquisition component collection image is sent to processor and processes.
Superior effect of the present utility model is:
1) structurally realize 16 grades of test forces optional, realized by traditional 6-8 shelves test force and optionally significantly having risen to, while having solved hardness test, for improving the primary test force of measuring accuracy, selected problem;
2) realize hardness, fracture toughness and unrelieved stress and measure on same machine, realize the requirement of multi-purpose machine, realize automatic measurement;
3) precision is high, speed is fast, easy to operate, the scope of application is wide and energy batch detection.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the front view of Fig. 1;
Fig. 4 is the explosion views of Fig. 1;
Number in the figure explanation
1-shell; 2-micrometer eyepiece;
3-pressure head; 4-synchronous motor;
5-lever; 6-full three links transition components;
7-large counterweight; 8-weight group;
9-suspension rod; 10-high and low shift power is switched;
11-handwheel; 12-variable load group;
13-capstan head; 14-lifter;
15-display screen.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As Figure 1-Figure 4, the utility model provides a kind of Vickers indentation hardness measuring system, comprising: casing 1 is carrying the loading of all spare and accessory parts mechanism, lever 5 plays the transfer function of test force, and the output shaft of synchronous motor 4 connects lever, and synchronous motor 4 is controlled loading, maintenance, the unloading that lever 5 is realized test force, lever 5 one end are connected with suspension rod 9, the other end is connected with pressure head 3, pressure head 3 carries out suppressing of impression on analyzed material, draw the impression of required analysis, what be connected with suspension rod 9 has large counterweight 7 and a weight group 8, what be connected with large counterweight 7 is that high and low shift power switches 10, whether the test force that the switching 10 of high and low shift power is controlled large counterweight 7 generations by cam acts on 8 grades of test forces and the 8 grades of high-grade test forces that produce low grade on suspension rod 9, what be connected with weight group 8 is variable load group 12, variable load group 12 is connected with handwheel 11, load test power size is selected in handwheel 11 rotations, its action of controlling variable load group 12 counterweight framves acts on suspension rod 9 the different counterweight of weight group 8, thereby produce 8 grades of different test forces, lifting group 14 realize rising and the decline of the workpiece of surveying on platform, make workpiece adjust to suitable pressure head and suppress position, capstan head 13 is carrying the switching effect of pressure head 3 and object lens, after pressure head 3 completes the impression of workpiece is suppressed, capstan head 13 is realized object lens is transformed into light path system, make object lens and micrometer eyepiece 2 form micro-amplification system, realization is carried out linear measure longimetry to impression on micrometer eyepiece 2, above capstan head 13, be provided with full three links transition components 6, first end is connected with the passage of micrometer eyepiece 2, the second end collection impression that communicates with vertical optical path, the 3rd end reserved passageway connects CCD acquisition component, gather impression and supply to carry out Measurement and analysis to processor, having realized the automatic collection of CCD acquisition component simultaneously and micrometer eyepiece manually measures impression, meet gauger's multiple choices requirement.As, two of impression diagonal line are measured, and the measurement data that the measurement data measuring on micrometer eyepiece and CCD acquisition component are collected is automatically compared, display measurement result on display screen 15, save the test duration, improved greatly testing efficiency.
The course of work of the present utility model: sample is placed on worktable, by afterburner system control with the positive rectangular pyramid diamond penetrator of 136 degree of setting to sample carry out test force loading, protect lotus, at specimen surface, obtain an impression after unloading, on micrometer eyepiece 2, measure impression or observe metallographic structure, can be sent to processor by CCD acquisition component collection image simultaneously and carry out image acquisition and processing, impression diameter be measured etc.Aspect the generation of test force, adopted high and low shift power switching device shifter, by cam gear, control the acting force that large counterweight produces and whether act on suspension rod, realized each high-grade and low-grade 8 grades of test forces totally 16 grades optional.The impression related data that the utility model carries out under each grade of test force is carried out Fitting Analysis, and then obtains fracture toughness and the unrelieved stress of hard brittle material;
A, choose test force, reference block or test specimen are placed on examination platform, rotate handwheel 11, make to try platform and rise.Eyes approach micrometer eyepiece 2 and observe, when test specimen is during from object lens lower end (2～3) mm, there is bright hot spot in the field of view center at micrometer eyepiece 2, illustrate and approach very much focussing plane, at this moment should very slowly rotate lifting handwheel, until observe test specimen surface imaging clearly in micrometer eyepiece 2, during focusing finishes.Observing metallographic structure is exactly to choose the object lens and the micrometer eyepiece that need to constitute microscopic structure, and focusing just can be seen in micrometer eyepiece need to observation.
B, by "start" button, start loading, the scroll bar of screen below starts to fill simultaneously, and loading finishes scroll bar and is full of.Send a sound of " dripping " simultaneously, roll and disappear thereupon.Indicate: instrument sends the sound dripping, represent that adding off-load finishes.
C, from micrometer eyepiece 2, observe the imaging of impressions, trimming hand wheel 11, until impression imaging clearly, rotate the drum on micrometer eyepiece 2 both sides, make infinite approach inside two grooves, between two grooves inner sides, printing opacity, gradually in having under light, unglazed critical conditions, is pressed < zero clearing > key, and zero-bit is determined; 2 grooves removing in micrometer eyepiece are measured impression catercorner lengths, level and lowering orientation measurement 2 times; After completing, measurement showing screen display hardness number.
Claims (1)
1. a Vickers indentation hardness measuring system, is characterized in that: comprise
Carry the casing that all spare and accessory parts mechanism loads; And play a lever of test force transfer function, the output shaft of synchronous motor connects lever, and control lever and realize the loading of test force, maintenance, unloading, lever one end is connected with suspension rod, the other end with on measured material, carry out the pressure head that impression suppresses and be connected, what be connected with suspension rod is large counterweight and weight group, what be connected with large counterweight is that high and low shift power is switched, what be connected with weight group is variable load group, variable load group is connected with handwheel, and the action that variable load group counterweight frame is controlled in handwheel rotation acts on suspension rod the different counterweight of weight group; And implementation platform rises or the lifting group of decline; And the capstan head that is carrying pressure head and object lens switching effect, above capstan head, be provided with full three links transition components, first end is connected with the passage of micrometer eyepiece, the second end collection impression that communicates with vertical optical path, the 3rd end connects CCD acquisition component, and CCD acquisition component collection image is sent to processor and processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649001.XU CN203519442U (en) | 2013-10-21 | 2013-10-21 | Vickers indentation hardness measurement system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320649001.XU CN203519442U (en) | 2013-10-21 | 2013-10-21 | Vickers indentation hardness measurement system |
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| CN203519442U true CN203519442U (en) | 2014-04-02 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198312A (en) * | 2014-07-22 | 2014-12-10 | 安徽金星预应力工程技术有限公司 | Tooling for measuring hardness of clamping piece |
| CN105954132A (en) * | 2016-04-28 | 2016-09-21 | 启东雷泰精密仪器有限公司 | Vickers hardometer and hardness measurement and correction method |
| CN106323780A (en) * | 2016-11-04 | 2017-01-11 | 上海奥龙星迪检测设备有限公司 | Machine head moving type Vickers hardness meter |
| CN106353210A (en) * | 2016-11-18 | 2017-01-25 | 上海奥龙星迪检测设备有限公司 | Horizontal brinell hardness tester |
| CN106546501A (en) * | 2016-09-09 | 2017-03-29 | 上海尚材试验机有限公司 | It is provided with the hardometer of ccd image acquisition system |
| CN109470587A (en) * | 2019-01-08 | 2019-03-15 | 上海研润光机科技有限公司 | A kind of hardometer based on high-precision pressure sensor Control experiment power |
| CN110082232A (en) * | 2019-05-27 | 2019-08-02 | 平湖莱顿光学仪器制造有限公司 | A kind of aid device and microscope |
| CN113176158A (en) * | 2021-03-29 | 2021-07-27 | 西安理工大学 | Hardness testing device and method based on scribing method |
-
2013
- 2013-10-21 CN CN201320649001.XU patent/CN203519442U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198312A (en) * | 2014-07-22 | 2014-12-10 | 安徽金星预应力工程技术有限公司 | Tooling for measuring hardness of clamping piece |
| CN105954132A (en) * | 2016-04-28 | 2016-09-21 | 启东雷泰精密仪器有限公司 | Vickers hardometer and hardness measurement and correction method |
| CN105954132B (en) * | 2016-04-28 | 2019-01-29 | 广州众诚电科检测技术有限公司 | Vickers and hardness measurement modification method |
| CN106546501A (en) * | 2016-09-09 | 2017-03-29 | 上海尚材试验机有限公司 | It is provided with the hardometer of ccd image acquisition system |
| CN106323780A (en) * | 2016-11-04 | 2017-01-11 | 上海奥龙星迪检测设备有限公司 | Machine head moving type Vickers hardness meter |
| CN106353210A (en) * | 2016-11-18 | 2017-01-25 | 上海奥龙星迪检测设备有限公司 | Horizontal brinell hardness tester |
| CN106353210B (en) * | 2016-11-18 | 2024-02-02 | 上海奥龙星迪检测设备有限公司 | Horizontal brinell hardness tester |
| CN109470587A (en) * | 2019-01-08 | 2019-03-15 | 上海研润光机科技有限公司 | A kind of hardometer based on high-precision pressure sensor Control experiment power |
| CN110082232A (en) * | 2019-05-27 | 2019-08-02 | 平湖莱顿光学仪器制造有限公司 | A kind of aid device and microscope |
| CN110082232B (en) * | 2019-05-27 | 2024-04-19 | 平湖莱顿光学仪器制造有限公司 | Add and hold device and microscope |
| CN113176158A (en) * | 2021-03-29 | 2021-07-27 | 西安理工大学 | Hardness testing device and method based on scribing method |
| CN113176158B (en) * | 2021-03-29 | 2023-12-05 | 西安新西北科技有限公司 | Hardness testing device and method based on scribing method |
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Granted publication date: 20140402 |
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