CN102879263A - Fixture for testing hardness and application method - Google Patents
Fixture for testing hardness and application method Download PDFInfo
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- CN102879263A CN102879263A CN2012103912537A CN201210391253A CN102879263A CN 102879263 A CN102879263 A CN 102879263A CN 2012103912537 A CN2012103912537 A CN 2012103912537A CN 201210391253 A CN201210391253 A CN 201210391253A CN 102879263 A CN102879263 A CN 102879263A
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- sleeve pipe
- anchor clamps
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Abstract
The invention relates to a fixture for testing hardness. The fixture is characterized by comprising a sleeve and a base, which are matched with each other. An internal thread is reserved on the inner wall of the sleeve. At least six screws are inserted into the upper half part of the sleeve, and are all uniformly distributed on the same circumferential surface. An external thread matched with the internal thread is reserved on the outer surface of the base. According to the other technical scheme, an application method of the fixture for testing the hardness is provided. The fixture and the application method are applied to hardness test pieces with various dimensions and shapes, and are strong in clamping force, easy to operate, stable in working state, high in test result repeatability and applicable to the fixation of the test pieces measured by a Brinell hardness tester, a Vickers hardness tester, a Rockwell hardness tester and the like.
Description
Technical field
The present invention relates to a kind of for the anchor clamps of hardness test and the application process of these anchor clamps.
Background technology
The hardness of material is the ability of material opposing local deformation, particularly plastic yield, impression or cut, is an important performance indexes weighing material soft or hard degree, is the integrated performance index of the mechanics such as elastic properties of materials, plasticity, intensity and toughness.Because hardness test only produces very little impression in the regional area of metal surface, less to material damage, thus can check metal surface state (such as decarburization and carburetting, surface hardening) with hardness test, and the skin hardness after the thermo-chemical treatment etc.Hardness can reflect the difference of metal material aspect chemical composition, metallographic structure, Technology for Heating Processing and cold working more exactly, so hardness test all is used widely on production, scientific research and engineering.
The test button of hardness test surface smoothness to be measured is had relatively high expectations, and only guaranteed penetrator is vertical with specimen surface, and test data is only really, just has confidence level.But in the research of material and relevant analytic process, specimen surface and the uneven situation of workplace of test usually appears, if directly beat the accuracy that hardness can affect test value at specimen surface.
This problem occurs, usually use inlaying process or anchor clamps method to fix sample, make test surfaces vertical with pressure head, reach the purpose of test.Inlay is compared generally softlyer in the inlaying process with metal material, affects the accuracy of test result, and inlaying process is applicable to the sample of small volume, and versatility is relatively poor, thereby has limited its usable range.What use was more at present is the anchor clamps methods, and the anchor clamps method is low to specimen size requirement, and preferably fixing test sample, and specimen surface can keep vertical with pressure head well.Present anchor clamps or complex operation, otherwise pretightning force is inadequate.
Summary of the invention
The purpose of this invention is to provide a kind of simple to operately, pretightning force is large, the anchor clamps that stable working state and test findings repeatability are high and the application process of these anchor clamps.
In order to achieve the above object, a technical scheme of the present invention provides a kind of anchor clamps for hardness test, it is characterized in that: comprise the sleeve pipe and the base that cooperatively interact, have internal thread at internal surface of sleeve pipe, the first half at sleeve pipe is equipped with at least six roots of sensation screw, all screws are evenly distributed on the same periphery, have the external thread that matches with the internal thread of sleeve pipe at the outside surface of base.
Preferably, described screw is hexagon socket cap head screw.
Preferably, comprise that also the contacted one side of mounting disc and sample has than high-flatness for the mounting disc of placing sample.
Another technical scheme of the present invention has provided a kind of above-mentioned application process that is used for the anchor clamps of hardness test, it is characterized in that, step is: the being tested surface of sample is flat in the mounting disc, cover sample with sleeve pipe, thereby sample is fixed in the inside precession of all screws, base is screwed in sleeve pipe until it contacts with sample, the anchorage force of a bottom is provided to sample by base, inside precession screw again, after the sample clamping, whole anchor clamps are placed on the sclerometer worktable, get final product the hardness of test sample.
The present invention is applicable to the hardness sample of sizes and shape, and clamping force is large, and is simple to operate, stable working state, and the test findings repeatability is high, is applicable to Bu Shi, Vickers and Rockwell hardometer etc. and measures the fixing of sample.
Description of drawings
Fig. 1 is the front view of the disclosed a kind of anchor clamps for hardness test of embodiment;
Fig. 2 is the vertical view of the disclosed a kind of anchor clamps for hardness test of embodiment.
Embodiment
For the present invention is become apparent, hereby with preferred embodiment, and cooperate accompanying drawing to be described in detail below.
As shown in Figures 1 and 2, the disclosed a kind of anchor clamps for hardness test of the present embodiment, comprise the sleeve pipe 1 and the base 2 that cooperatively interact, have internal thread at sleeve pipe 1 inwall, the first half at sleeve pipe 1 is equipped with six roots of sensation screw 3, all screws 3 are evenly distributed on the same periphery, have the external thread that matches with internal thread at the outside surface of base 2.External thread and internal thread are complementary, and make things convenient for the assembling of base 2 and sleeve pipe 1, and make things convenient for base 2 to move up and down and dismantle.It is different that hardness specimen clamping environment is loaded in consideration, can also be equipped with a mounting disc that is used for placing sample, and the contacted one side of mounting disc and sample has than high-flatness, parallel with worktable behind the assurance specimen surface clamping.
Screw 3 is hexagon socket cap head screw.Adopt socket head cap screw to make things convenient for the degree of tightness of sample.
A kind of above-mentioned application process that is used for the anchor clamps of hardness test, the steps include: the being tested surface of sample is flat in the mounting disc, cover sample with sleeve pipe 1, thereby sample is fixed in all screw 3 inside precessions, base 2 is screwed in sleeve pipe 1 until it contacts with sample, the anchorage force of a bottom is provided to sample by base 2, inside precession screw 3 again, after the sample clamping, whole anchor clamps are placed on the sclerometer worktable, get final product the hardness of test sample.
Claims (4)
1. anchor clamps that are used for hardness test, it is characterized in that: comprise the sleeve pipe (1) and the base (2) that cooperatively interact, have internal thread at sleeve pipe (1) inwall, the first half at sleeve pipe (1) is equipped with at least six roots of sensation screw (3), all screws (3) are evenly distributed on the same periphery, have the external thread that matches with the internal thread of sleeve pipe (1) at the outside surface of base (2).
2. a kind of anchor clamps for hardness test as claimed in claim 1, it is characterized in that: described screw (3) is hexagon socket cap head screw.
3. a kind of anchor clamps for hardness test as claimed in claim 1 is characterized in that: comprise that also the contacted one side of mounting disc and sample has than high-flatness for the mounting disc of placing sample.
4. the application process of the anchor clamps for hardness test as claimed in claim 1, it is characterized in that, step is: the being tested surface of sample is flat in the mounting disc, cover sample with sleeve pipe (1), with all screws (3) thus inwardly sample is fixed in precession, base (2) is screwed in sleeve pipe (1) until it contacts with sample, the anchorage force of a bottom is provided to sample by base (2), inside precession screw (3) again, after the sample clamping, whole anchor clamps are placed on the sclerometer worktable, get final product the hardness of test sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103912537A CN102879263A (en) | 2012-10-15 | 2012-10-15 | Fixture for testing hardness and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103912537A CN102879263A (en) | 2012-10-15 | 2012-10-15 | Fixture for testing hardness and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102879263A true CN102879263A (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103912537A Pending CN102879263A (en) | 2012-10-15 | 2012-10-15 | Fixture for testing hardness and application method |
Country Status (1)
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| CN (1) | CN102879263A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163017A (en) * | 2013-03-06 | 2013-06-19 | 上海锅炉厂有限公司 | Sample fixing device used for testing hardness and application |
| CN103969117A (en) * | 2014-04-25 | 2014-08-06 | 攀钢集团成都钢钒有限公司 | Fixture for Leeb hardness tester detection and Leeb hardness tester detection device |
| CN104931341A (en) * | 2015-06-12 | 2015-09-23 | 合肥工业大学 | Sleeve joint applied to metal compression members having remarkable welding heat influence |
| CN105277432A (en) * | 2015-07-10 | 2016-01-27 | 贵州航天精工制造有限公司 | Measurement method of small hardness sample and clamping fixture |
| CN108007862A (en) * | 2016-10-31 | 2018-05-08 | 中国石油化工股份有限公司 | Sheet metal specimens fixture for direct reading spectrometry |
| CN108918102A (en) * | 2018-04-17 | 2018-11-30 | 盐城中自科技有限公司 | A kind of heater block fault detection means |
| CN109540660A (en) * | 2019-01-14 | 2019-03-29 | 南昌航空大学 | Adjustable hardness test fixture |
| CN109632473A (en) * | 2019-02-01 | 2019-04-16 | 江苏方天电力技术有限公司 | A kind of tubular part hardness measurement fixture |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4040291A (en) * | 1975-02-21 | 1977-08-09 | Girlock Limited of Belmore | Hardness tester |
| CN202119672U (en) * | 2011-06-23 | 2012-01-18 | 椿中岛机械(太仓)有限公司 | Clamp special for measuring tools of Rockwell hardometer |
| CN202162576U (en) * | 2011-05-05 | 2012-03-14 | 寿震森 | Fixture block capable of side compacting |
| CN102601693A (en) * | 2012-04-10 | 2012-07-25 | 苏州唐峰金属制品有限公司 | Fixture for grinding eccentric inner bores |
-
2012
- 2012-10-15 CN CN2012103912537A patent/CN102879263A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4040291A (en) * | 1975-02-21 | 1977-08-09 | Girlock Limited of Belmore | Hardness tester |
| CN202162576U (en) * | 2011-05-05 | 2012-03-14 | 寿震森 | Fixture block capable of side compacting |
| CN202119672U (en) * | 2011-06-23 | 2012-01-18 | 椿中岛机械(太仓)有限公司 | Clamp special for measuring tools of Rockwell hardometer |
| CN102601693A (en) * | 2012-04-10 | 2012-07-25 | 苏州唐峰金属制品有限公司 | Fixture for grinding eccentric inner bores |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163017A (en) * | 2013-03-06 | 2013-06-19 | 上海锅炉厂有限公司 | Sample fixing device used for testing hardness and application |
| CN103163017B (en) * | 2013-03-06 | 2016-07-06 | 上海锅炉厂有限公司 | A kind of sample fixing device for hardness test and application thereof |
| CN103969117A (en) * | 2014-04-25 | 2014-08-06 | 攀钢集团成都钢钒有限公司 | Fixture for Leeb hardness tester detection and Leeb hardness tester detection device |
| CN103969117B (en) * | 2014-04-25 | 2016-02-17 | 攀钢集团成都钢钒有限公司 | Leeb Hardness Tester detection fixture and Leeb Hardness Tester pick-up unit |
| CN104931341A (en) * | 2015-06-12 | 2015-09-23 | 合肥工业大学 | Sleeve joint applied to metal compression members having remarkable welding heat influence |
| CN105277432A (en) * | 2015-07-10 | 2016-01-27 | 贵州航天精工制造有限公司 | Measurement method of small hardness sample and clamping fixture |
| CN108007862A (en) * | 2016-10-31 | 2018-05-08 | 中国石油化工股份有限公司 | Sheet metal specimens fixture for direct reading spectrometry |
| CN108918102A (en) * | 2018-04-17 | 2018-11-30 | 盐城中自科技有限公司 | A kind of heater block fault detection means |
| CN109540660A (en) * | 2019-01-14 | 2019-03-29 | 南昌航空大学 | Adjustable hardness test fixture |
| CN109632473A (en) * | 2019-02-01 | 2019-04-16 | 江苏方天电力技术有限公司 | A kind of tubular part hardness measurement fixture |
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Application publication date: 20130116 |