CN201993274U - Sample clamp - Google Patents
Sample clamp Download PDFInfo
- Publication number
- CN201993274U CN201993274U CN2011200882403U CN201120088240U CN201993274U CN 201993274 U CN201993274 U CN 201993274U CN 2011200882403 U CN2011200882403 U CN 2011200882403U CN 201120088240 U CN201120088240 U CN 201120088240U CN 201993274 U CN201993274 U CN 201993274U
- Authority
- CN
- China
- Prior art keywords
- sample
- base
- slider
- platen
- upper platen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 241000397426 Centroberyx lineatus Species 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 21
- 238000007373 indentation Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 30
- 238000010586 diagram Methods 0.000 description 4
- 238000007545 Vickers hardness test Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a sample anchor clamps, it includes a last platen, a base, its characterized in that goes up the platen and installs on the base, goes up the platen and has a rectangle opening, and the slider that has dovetail recess cooperatees with the dovetail boss of base, and two screw thread bracing pieces cooperate through the logical groove in the middle of the base boss and the slider that has dovetail recess, and the sample is put on the slider that has dovetail recess, corresponds the cooperation with the rectangle opening on the last platen. The utility model discloses during the experiment, the sample dress is in the intermediate position of last platen, and its polished surface is arranged in the rectangle opening bottom of last platen intermediate position, can guarantee that the polished surface that the sample was tested is on a parallel with the objective table, removes the slider, makes sample and slider be in suitable position relatively, presss from both sides the sample fixed clamp tightly, and the effort perpendicular to sample surface that the test machine pressure head was applyed like this forms normal prism indentation at the test surface to guarantee the accuracy of test result.
Description
Technical field
The utility model relates to a kind of test fixture, particularly a kind of specimen holder that is used for Vickers hardness test.
Background technology
Detect in the test in the relevant Vickers hardness of testing laboratory, require the testing machine pressure head that specimen surface is vertically applied acting force, measure pressure head forms impression to specimen surface catercorner length, by calculating Vickers hardness number, therefore, the size of specimen surface impression, shape whether rule etc. the size of hardness number is had a direct impact.Since the Vickers hardness sample normally on the material that needs detect cut one block length be no more than 30mm, the rectangular parallelepiped about width 10mm is handled the surface finish of needs test then.Because rough machined sample is difficult to guarantee that the plane of symmetry is parallel to each other, when there is the gradient sample bottom surface, sample places on the objective table of testing machine, just can not guarantee vertically between specimen surface and the pressure head, and the hardness number result who measures differs greatly, differ tens times sometimes, testing result can not truly reflect the hardness number of sample, therefore, needs to propose a kind of clamping device, keep specimen surface vertical, guarantee precision of test result with pressure head.
Have in the patent documentation that retrieves about the anchor clamps field: use large-scale jig when being fit to the structural member welding of automobile analog; Also have be applicable to instrument, workpiece or tray for work pieces be installed on limit the position with the supporting use anchor clamps of machining equipment; The anchor clamps that are suitable for frock or automatic aligning etc. in addition, also have a kind of anchor clamps that are used for testing sheering property of continuous fiber reinforced composite material, when using this anchor clamps test, reduced the influence of buckling effect, used when being fit to test softer material test findings; Anchor clamps for laboratory sample test usefulness also do not have relevant introduction, because the anchor clamps that laboratory clamping Vickers hardness sample is used, require bearing accuracy height up and down, and sample size, specification difference, but existing nipper all can't satisfy breadboard special requirement.
The utility model content
The utility model is the needs at the Vickers hardness test of above-mentioned laboratory, proposes a kind of laboratory unit clamp, the Vickers hardness that is used to test the rectangular shape sample, and these anchor clamps can convenient, the sample of clamping Vickers hardness test efficiently.
The purpose of this utility model is achieved in that
It comprises a upper platen, a base, it is characterized in that, upper platen is installed on the base, upper platen has an oblong openings, the slide block that has swallow tail shaped slot matches with the swallow-tail form boss of base, and can on boss, slide, two screw thread support bars match with the slide block that has dovetail groove by the groove in the middle of the base boss, sample is placed on the slide block that has dovetail groove, with the oblong openings corresponding matching on the upper platen, realize to the clamping of sample or unclamp that two screw thread support bars can move with slide block in the groove in the middle of the base boss.
Concrete structure of the present utility model has, and the thick thin edge of 0.5～0.7mm is arranged around the oblong openings on the upper platen.
The beneficial effects of the utility model are:
Because the upper platen interposition is equipped with an oblong openings, during test, sample is contained in the centre position of upper platen, its polished surface places the oblong openings bottom in upper platen centre position, thin edge is pressed in the edge of sample, therefore, can guarantee that the tested polished surface of sample is parallel to objective table, moving slider makes sample and slide block be in relative suitable position, tightens the support threaded rod, sample fixation clamp is tight, the acting force that applies of testing machine pressure head forms normal prismatic impression perpendicular to specimen surface at test surfaces like this, thereby guarantees precision of test result.
Description of drawings
Accompanying drawing 1 is a main TV structure synoptic diagram of the present utility model,
Fig. 2 is a plan structure synoptic diagram of the present utility model,
Fig. 3 is the slide block structure synoptic diagram,
Fig. 4 is the understructure synoptic diagram.
Among the figure: 1-upper platen, 2-screw, 3-base, 4-slide block, 5-screw thread support bar.
Embodiment
Below in conjunction with embodiment the utility model is further described.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the utility model comprises upper platen 1, base 3, upper platen 1 is connected by attachment screw 2 with base 3, upper platen has an oblong openings, and the slide block 4 that has dovetail groove matches with the swallow-tail form boss of base, and can slide on boss, two screw thread support bars 5 match with described slide block 4 by the groove in the middle of the described base boss, realize the location of sample is clamped.
The utility model in use places the sample polished surface under the thin edge of oblong openings of upper platen 1, and according to sample size, one or two screw thread support bars are used in decision.When sample hour, can use a screw thread support bar, moving slider 4 makes sample and slide block 4 be in a relative suitable position, and a screw thread support bar 5 places the centre position of sample, for the polished surface that guarantees sample parallel with table top in experiment, the thick thin edge of 0.5～0.7mm is arranged around the oblong openings on the upper platen, the sample polished surface is close to the thin edge of upper platen, at this moment the sample polished surface remains parallel to the position of objective table, threaded together support bar 5 is tight with sample fixation clamp; When sample is big, the sample polished surface is close to the thin edge of upper platen, and moving slider 4 makes sample and moving slider 4 be in a relative suitable position, tighten two screw thread support bars 5, the polished surface of the sample position that the remains parallel to objective table clamping that is fixed at this moment.
Claims (2)
1. specimen holder, it comprises a upper platen, a base, it is characterized in that upper platen is installed on the base, upper platen has an oblong openings, the slide block that has dovetail groove matches with the swallow-tail form boss of base, two screw thread support bars match with the slide block that has dovetail groove by the groove in the middle of the base boss, and sample is placed on the slide block that has dovetail groove, with the oblong openings corresponding matching on the upper platen.
2. a kind of specimen holder according to claim 1 is characterized in that, the thick thin edge of 0.5～0.7mm is arranged around the oblong openings on the described upper platen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200882403U CN201993274U (en) | 2011-03-29 | 2011-03-29 | Sample clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200882403U CN201993274U (en) | 2011-03-29 | 2011-03-29 | Sample clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201993274U true CN201993274U (en) | 2011-09-28 |
Family
ID=44669760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200882403U Expired - Fee Related CN201993274U (en) | 2011-03-29 | 2011-03-29 | Sample clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201993274U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192661A (en) * | 2017-07-10 | 2017-09-22 | 上海凯尔孚应力腐蚀试验设备有限公司 | A kind of hanging rack structure suitable for C ring samples |
| CN109443931A (en) * | 2018-12-21 | 2019-03-08 | 北京工业大学 | Compression experiment pressure head, fixture and experimental method based on the design of T150 UTM system |
| 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 |
-
2011
- 2011-03-29 CN CN2011200882403U patent/CN201993274U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192661A (en) * | 2017-07-10 | 2017-09-22 | 上海凯尔孚应力腐蚀试验设备有限公司 | A kind of hanging rack structure suitable for C ring samples |
| CN107192661B (en) * | 2017-07-10 | 2023-09-08 | 上海凯尔孚应力腐蚀试验设备有限公司 | Hanger structure suitable for C ring sample |
| 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 |
| CN109443931A (en) * | 2018-12-21 | 2019-03-08 | 北京工业大学 | Compression experiment pressure head, fixture and experimental method based on the design of T150 UTM system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20170329 |