CN105699159A

CN105699159A - Metallographic specimen clamping device

Info

Publication number: CN105699159A
Application number: CN201610256743.4A
Authority: CN
Inventors: 孙旭; 宁玉恒; 李英明
Original assignee: Datang Northeast Electric Power Test and Research Institute Co Ltd
Current assignee: Datang Northeast Electric Power Test and Research Institute Co Ltd
Priority date: 2016-04-22
Filing date: 2016-04-22
Publication date: 2016-06-22

Abstract

The invention discloses a metallographic specimen clamping device which comprises an upper clamp and a lower clamp. The upper clamp and the lower clamp are each provided with at least two through holes. The through holes in the upper clamp correspond to the through holes in the lower clamp one to one. Bolts penetrate through the through holes in the corresponding positions of the upper clamp and the lower clamp, and nuts are further arranged on the bolts. Anti-skid protruding structures are arranged on the opposite clamping faces of the upper clamp and the lower clamp. According to the metallographic specimen clamping device, specimen grinding time is saved, the work efficiency of specimen preparation is improved, and the labor intensity of workers is lowered.

Description

Metallographic specimen clamping device

Technical field

Present invention relates particularly to a kind of metallographic specimen clamping device。

Background technology

Modern mechanical part manufacture, ferrous materials smelting, Non-ferrous Metallurgy, Inorganic Non-metallic Materials produces, prepared by electronic package material, in the commercial production such as composite exploitation and scientific research, usually the hardness of the metallographic microstructure form of material internal, internal flaw distribution characteristics and material composition phase is analyzed and evaluated to the equipment such as Application Optics metallurgical microscope, scanning electron microscope and microhardness testers, and studies and evaluate the object of Fine Texture of Material pattern and according to being metallographic specimen。

In order to once carry out the observation of multiple sample, saving experimental period, size is generally had strict requirement by the metallographic specimen for sem observation。While ensureing viewing area, specimen height can not be too high, and in order to ensure the electric conductivity of material, it is impossible to sample is inlayed, therefore there is the phenomenon that clamping is inconvenient in sample making course, the sample of preparation there is also the problem such as bevelling, edge out-of-flatness equally。

Because above-mentioned demand, the design people, actively in addition research and innovation, to founding a kind of metallographic specimen clamping device so that it is have more the value in industry。

Summary of the invention

For solving above-mentioned technical problem, it is an object of the invention to provide a kind of metallographic specimen clamping device that can facilitate, smoothly clamp metallographic specimen。

By such scheme, metallographic specimen clamping device of the present invention at least have the advantage that to be not regular shape, not easily hand-held small metallographic specimen effectively grind, polishing。By sample flour milling and clamping face side horizontalization, carrying out simultaneously grinding and polishing, it is possible to be prevented effectively from the problem producing bevelling in grind away process, clamping device processing is simple, and production cost is low, easy disassembling, easy to operate, safe and reliable。

Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after。

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment 1 of metallographic specimen clamping device of the present invention；

Fig. 2 is the structural representation of the embodiment 2 of metallographic specimen clamping device of the present invention；

Fig. 3 is metallographic specimen clamping device part-structure schematic diagram of the present invention；

Fig. 4 is the structural representation of the upper jig plate of metallographic specimen clamping device of the present invention；

Fig. 5 is the side view of the upper jig plate of metallographic specimen clamping device of the present invention；

Fig. 6 is the bolt structure schematic diagram of metallographic specimen clamping device of the present invention；

Fig. 7 is the nut structure schematic diagram of metallographic specimen clamping device of the present invention；

In figure: 1, upper fixture；2, lower clamp；3, stud；4, nut。

Detailed description of the invention

Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail。Following example are used for illustrating the present invention, but are not limited to the scope of the present invention。

Embodiment 1

As shown in Figures 1 to 6, the present embodiment metallographic specimen clamping device, including upper fixture 1, lower clamp 2, the facing clamping face of described upper fixture, lower clamp is provided with Cleat structures。On described upper fixture, lower clamp, opposite position is each provided with two through holes respectively, and two through holes on described upper and lower fixture are symmetrical arranged；Stud 3 is through the through hole of corresponding position on described upper and lower fixture, and described stud is provided with nut 4。On described upper fixture, the clamping face of lower clamp, opposite position is each provided with a V-notch groove。The described V-notch groove on upper and lower fixture is arranged between two through hole。

In the present embodiment, upper fixture 1 is a cuboid aluminium sheet, which is provided with two through holes, and described through hole is that stud inserts hole, location, and concrete size can according to being actually needed sets itself。Be provided with Cleat structures in holder face, effect is an up sample holder frictional force, and processing simultaneously has V-type groove, and effect is to be beneficial to clamping non-shaping, not easily hand-held small metallographic specimen。The material hardness that upper fixture, lower clamp adopt need to lower than prepared sample hardness, effect is that fixture can be ground with sample and polish, eliminate the sample bevelling produced in grind away process, sample preparation injustice problem, simultaneously clamp material hardness relatively prepare sample material low time, sample will not be produced cut by the abrasive dust that abrasion produces。The material of lower clamp is identical with upper fixture with size, is printed on anti-skid mesh check road equally, and is provided with v-notch on sample contacts face, is simultaneously provided with two the symmetrical through holes identical with lead to the hole site on upper fixture。

Stud in the present embodiment is hexagonal single head stud and hexagonal single head stud is the hexagonal single head stud meeting national standard size, and concrete size is chosen according to the clear size of opening on upper and lower fixture and clamped specimen size。Preferred size outside dimension, less than hexagonal single head stud, matched in clearance, contributes to adjusting sample clip position。

During use, rotary nut counterclockwise, according to distance between lower clamp in specimen size adjustment, the metallographic specimen preparing preparation is positioned between upper lower clamp, make the outer wall laminating abrasionproof grid of metallographic specimen, keep sample side (grinding and polishing face) parallel with two fixture sides, so can carry out grinding and polishing by fixture and sample simultaneously, increase friction area, it is ensured that the flour milling of sample is smooth。Finally adjust nut degree of tightness, it is ensured that metallographic specimen can be polished after sample holder is tight, polish。Hand-held upper lower clamp in sample making course, holds sample prescription just and can effective Protection person finger。After sample preparation terminates, unclamp nut, namely can be taken off sample, carry out next step and observe。

Embodiment 2

As shown in Figure 2, the present embodiment the present embodiment metallographic specimen clamping device, it is different in that with embodiment 1: described upper fixture, the clamping face of lower clamp are respectively provided with two V-notch grooves, V row gap slot on described upper fixture, lower clamp is one_to_one corresponding respectively, and the V-notch groove structure at opposite position place is identical, the size of two V-shaped grooves on upper fixture is different, and the size of two V-shaped grooves on same lower clamp is different。

The present embodiment is identical with other structures of embodiment 1, and using method is also identical, does not repeat them here。The upper and lower fixture of the present embodiment is each provided with two various sizes of V-notch grooves, it is possible to the sample meeting different structure uses, and uses more convenient, and the multiple irregular samples of convenient clamping carry out metallographic sample preparation simultaneously, promote sample preparation efficiency,。

Embodiment 3

The present embodiment metallographic specimen clamping device, including upper fixture, lower clamp, the facing clamping face of described upper fixture, lower clamp is provided with Cleat structures。On described upper fixture, lower clamp, opposite position is each provided with four through holes respectively, and four through holes on described upper and lower fixture are symmetrical arranged；Stud is through the through hole of corresponding position on described upper and lower fixture, and described stud is provided with nut。On described upper fixture, the clamping face of lower clamp, opposite position is each provided with two V-notch grooves。Each V-notch groove on described upper and lower fixture is separately positioned between adjacent two through hole。In the present embodiment, the size of two V-shaped grooves on upper fixture is different, and the size of two V-shaped grooves on same lower clamp is different。

In the various embodiments described above, the Cleat structures that the clamping face that described upper fixture, lower clamp are facing is arranged is that netted lines is protruding。

In the various embodiments described above, the upper end end face of described stud is provided with the rim of the mouth being easily installed or dismantling；Described rim of the mouth is " ten " word shape。

In the various embodiments described above, it is desirable to prepare the material hardness that fixture uses and be less than the hardness of institute's grinding and polishing sample material。

The above is only the preferred embodiment of the present invention; it is not limited to the present invention; should be understood that; for those skilled in the art; under the premise without departing from the technology of the present invention principle; can also making some improvement and modification, these improve and modification also should be regarded as protection scope of the present invention。

Claims

1. a metallographic specimen clamping device, it is characterized in that, including: upper fixture, lower clamp, described upper fixture, lower clamp are each provided with at least two through hole respectively, through hole on described upper fixture, lower clamp is one_to_one corresponding respectively, and stud is through the through hole of corresponding position on described upper and lower fixture, and described stud is additionally provided with nut, wherein, the facing clamping face of described upper fixture, lower clamp is provided with Cleat structures。

2. metallographic specimen clamping device according to claim 1, it is characterized in that, described upper fixture, the clamping face of lower clamp are respectively provided with at least one V-notch groove, V row gap slot on described upper fixture, lower clamp is one_to_one corresponding respectively, and the V-notch groove structure at opposite position place is identical。

3. metallographic specimen clamping device according to claim 1, it is characterised in that the Cleat structures arranged on the clamping face that described upper fixture, lower clamp are facing is that netted lines is protruding。

4. metallographic specimen clamping device according to claim 1, it is characterised in that be provided with the rim of the mouth being easily installed or dismantling on the upper end end face of described stud；Described rim of the mouth is " ten " word shape。

5. according to claim metallographic specimen clamping device according to claim 2, it is characterised in that on described upper fixture, lower clamp, opposite position is each provided with two through holes respectively, and two through holes on described upper and lower fixture are symmetrical arranged；The described V-notch groove on upper and lower fixture is arranged between two through hole。