CN205120491U - Microhardness sample clamping device - Google Patents
Microhardness sample clamping device Download PDFInfo
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- CN205120491U CN205120491U CN201520792905.7U CN201520792905U CN205120491U CN 205120491 U CN205120491 U CN 205120491U CN 201520792905 U CN201520792905 U CN 201520792905U CN 205120491 U CN205120491 U CN 205120491U
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- shoulder hole
- clamping device
- microhardness
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Abstract
The utility model discloses a microhardness sample clamping device. It is not high to adjust sample anchor clamps equivalence rate repeatedly for solution microhardness is experimental, the low problem of experimental precision, the utility model discloses microhardness sample clamping device includes overall framework (1) and case bolt (3), the face of two parallels about being fixed with on overall framework (1), and it has the screw to open on the lower terminal surface, and it has the shoulder hole to open on the up end, and install in the screw case bolt (3), and the head of case bolt (3) is close to the up end, great hole site in the lower part of up end of shoulder hole diameter, the step face of shoulder hole is with the terminal surface is parallel down. Clamping device makes the back adjustment and proofreaies and correct overhead gage and the bottom surface level of making, and the sample detects the face and near the overhead gage centre gripping, has guaranteed that the sample detects the face level, makes hardness indentation standard, experimental easy operation, and experimental precision is high.
Description
Technical field
The utility model belongs to micro-hardness testing technical field, relates to a kind of microhardness sample clamping device.
Background technology
Mixcrohardness test is on diamond penetrator, apply certain load, and slow pressing in sample surface, stops certain hour load removal, measures residual impression catercorner length, obtains microhardness value by formulae discovery.
Mixcrohardness test to the flatness of specimen surface and smoothness requirements higher, require detection faces maintenance level simultaneously, namely require that detection faces is vertical with pressure head with microhardness testers optical axis.Because sample upper and lower surface is difficult to grind keeping parallelism, sample can not keep detection faces vertical with pressure head on testing table, needs to use the instrument such as plasticine, flat-nose pliers.
Sample underlay plasticine, compare for simply, but when load is larger a little, plasticine has sinking with leveller smoothing, impact test.And flat-nose pliers clamping sample is in smoothing and rundown process, rotates with axle, cause test face to be difficult to level.
Sample detection faces is out-of-level, impression diagonal line two ends length can be caused inconsistent, affect the accuracy of test findings.Both contact with sample detection faces through leveller simultaneously, cause specimen surface partial injury, affect test effect.
Summary of the invention
The technical matters that the utility model solves: provide a kind of microhardness sample clamping device for micro-hardness testing, solves and installs efficiency and the low technical matters of measuring accuracy additional.
The technical solution of the utility model is: described clamp device comprises general frame 1 and snap head bolt 3, general frame 1 is fixed with upper and lower two parallel faces, a lower surface has screw, upper surface has shoulder hole, snap head bolt 3 is arranged in screw, the head of snap head bolt 3 is near upper surface, and the hole that shoulder hole diameter is larger is positioned at the bottom of upper surface, and the step surface of shoulder hole is parallel with lower surface.
One as the technical program is improved, the upper surface of general frame 1 comprises overhead gage 2 and framework face 4, framework face 4 is for being fixed on the plane on general frame 1, overhead gage 2 is fixed on framework face 4, shoulder hole is made up of the hole that overhead gage 2 and framework face process, and on framework face 4, the diameter of institute's perforate is greater than the diameter of institute's perforate on overhead gage 2.
One as the technical program is improved, and described shoulder hole is the different microscler shoulder hole of width.
The beneficial effects of the utility model: specimen holder shoulder hole step surface is parallel with lower surface, sample detection faces abuts against on the step surface of shoulder hole, must ensure sample detection faces and upper surface level, namely sample detection faces and fixture lower surface level.Thus ensure that the level of sample detection faces, ensure that hardness indentation shape criteria, test accuracy is high, simplifies clamping process simultaneously, shortens test period.Not only increase test accuracy, improve testing efficiency simultaneously.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is left view of the present utility model;
Fig. 3 is vertical view of the present utility model;
Fig. 4 is cut-open view of the present utility model;
In figure: 1 is general frame, 2 is overhead gage, and 3 is snap head bolt, and 4 is framework face.
Embodiment
Below in conjunction with accompanying drawing, the technical program is described in further details.
Described clamp device comprises general frame 1 and snap head bolt 3, general frame 1 is fixed with upper and lower two parallel faces, a lower surface has screw, upper surface has shoulder hole, snap head bolt 3 is arranged in screw, the head of snap head bolt 3 is near upper surface, and the hole that shoulder hole diameter is larger is positioned at the bottom of upper surface, and the step surface of shoulder hole is parallel with lower surface.
With reference to figure 1, this is the structural representation of a preferred version of the utility model microscopic sample clamp device, in the present embodiment, described general frame 1 is a square cubic structure, in order to ensure the property quietly used, slab overall processing is adopted to form, corner is connected with upper surface by support column, upper surface has a shoulder hole, for placing the guide hole of sample, corresponding region, lower surface has 3 apertures, and hole internal tapping, match with the screw thread of snap head bolt 3, twist bolt and can control bolt lifting, overhead gage 2 is that a steel sheet has hole, hole on shape and framework face 4 upper plate is similar, but size is less, for fixing sample detection faces, overhead gage 2 and base adopt spot welding or glued joint fixing.Use the blunt end of snap head bolt 3 to fix sample, the effective contact area with sample can be ensured, improve fixing reliability.
Whether after fixture completes, need smooth, grind sample, use this clamp, amplify 500 times of observations on a durometer scale, movable clamp, observing sample detection faces all can blur-free imaging.If can not blur-free imaging, with sand papering base corner height, adjustment makes detection faces level, and namely detection faces is with all can blur-free imaging during focal length.
During mixcrohardness test, the sample prepared is put into sample guide hole from base is hollow, and detection faces, near overhead gage 2, is tightened with snap head bolt 3.In the hole of overhead gage, can be observed most of sample detection faces, mixcrohardness test can be carried out.
Irregular microhardness sample need be inlayed, and water-drop-shaped hole place can place major part position cylindrical sample that maximum gauge is 25mm--30mm or inlay sample, and comparatively small cylindrical and square coupons can be placed in the middle of shoulder hole or tip location.
Claims (3)
1. a microhardness sample clamping device, it is characterized by: described clamp device comprises general frame (1) and snap head bolt (3), general frame (1) is fixed with upper and lower two parallel faces, a lower surface has screw, upper surface has shoulder hole, snap head bolt (3) is arranged in screw, the head of snap head bolt (3) is near upper surface, the hole that shoulder hole diameter is larger is positioned at the bottom of upper surface, and the step surface of shoulder hole is parallel with lower surface.
2. a kind of microhardness sample clamping device according to claim 1, it is characterized by: the upper surface of general frame (1) comprises overhead gage (2) and framework face (4), framework face (4) is for being fixed on the plane on general frame (1), overhead gage (2) is fixed on framework face (4), shoulder hole is made up of the hole that overhead gage (2) and framework face process, and on framework face (4), the diameter of institute's perforate is greater than the diameter of institute's perforate on overhead gage (2).
3. a kind of microhardness sample clamping device according to claim 1 and 2, is characterized by: described shoulder hole is the different microscler shoulder hole of width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520792905.7U CN205120491U (en) | 2015-10-14 | 2015-10-14 | Microhardness sample clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520792905.7U CN205120491U (en) | 2015-10-14 | 2015-10-14 | Microhardness sample clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205120491U true CN205120491U (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520792905.7U Active CN205120491U (en) | 2015-10-14 | 2015-10-14 | Microhardness sample clamping device |
Country Status (1)
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| CN (1) | CN205120491U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063844A (en) * | 2017-03-30 | 2017-08-18 | 广西玉柴机器股份有限公司 | The auxiliary mould of hardness determination |
| CN108007765A (en) * | 2017-12-31 | 2018-05-08 | 江苏科泰检测技术服务有限公司 | Level tune fixing device is used in metal hardness detection |
| CN109855997A (en) * | 2018-11-20 | 2019-06-07 | 浙江工贸职业技术学院 | A kind of sample preparation device for micro-vickers hardness analysis |
| CN110318092A (en) * | 2019-06-27 | 2019-10-11 | 江苏省沙钢钢铁研究院有限公司 | A kind of electrobrightening auxiliary device and its application method |
| CN112014205A (en) * | 2020-10-09 | 2020-12-01 | 中国航空工业集团公司北京长城计量测试技术研究所 | Microhardness meter with multi-sample automatic calibration function |
| CN112098191A (en) * | 2020-10-09 | 2020-12-18 | 中国航空工业集团公司北京长城计量测试技术研究所 | Special fixture for multi-sample microhardness block test |
-
2015
- 2015-10-14 CN CN201520792905.7U patent/CN205120491U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107063844A (en) * | 2017-03-30 | 2017-08-18 | 广西玉柴机器股份有限公司 | The auxiliary mould of hardness determination |
| CN108007765A (en) * | 2017-12-31 | 2018-05-08 | 江苏科泰检测技术服务有限公司 | Level tune fixing device is used in metal hardness detection |
| CN108007765B (en) * | 2017-12-31 | 2023-09-08 | 江苏科泰检测技术服务有限公司 | Horizontal adjustment fixing device for metal hardness detection |
| CN109855997A (en) * | 2018-11-20 | 2019-06-07 | 浙江工贸职业技术学院 | A kind of sample preparation device for micro-vickers hardness analysis |
| CN110318092A (en) * | 2019-06-27 | 2019-10-11 | 江苏省沙钢钢铁研究院有限公司 | A kind of electrobrightening auxiliary device and its application method |
| CN112014205A (en) * | 2020-10-09 | 2020-12-01 | 中国航空工业集团公司北京长城计量测试技术研究所 | Microhardness meter with multi-sample automatic calibration function |
| CN112098191A (en) * | 2020-10-09 | 2020-12-18 | 中国航空工业集团公司北京长城计量测试技术研究所 | Special fixture for multi-sample microhardness block test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 723213 Liulin Town, Chenggu County, Hanzhong City, Shaanxi Province Patentee after: Shaanxi Aircraft Industry Co.,Ltd. Address before: Box 34, Hanzhong City, Shaanxi Province, 723213 Patentee before: Shaanxi Aircraft INDUSTRY(GROUP) Co.,Ltd. |