CN220241128U - Sample pressure testing clamping device - Google Patents

Abstract

The utility model belongs to the technical field of metallographic sample preparation auxiliary clamps, in particular to a sample pressure test clamping device, which comprises a clamping table, wherein a plurality of uniformly distributed limiting grooves are formed in two opposite sides of the clamping table, a sliding plate is arranged on the outer side of the clamping table in a sliding manner, a fixed sleeve is arranged on two corresponding sides of the sliding plate, a connecting column is arranged in the fixed sleeve in a sliding manner, and a spring sleeved on the connecting column is arranged in the fixed sleeve; according to the utility model, through the fixed sleeve, the spring, the connecting column, the limiting groove and the limiting plate, the height of the sliding plate can be adjusted, the height of the clamping plate can be adjusted, the arranged yielding groove can yield the clamping plate, and the technical problem that samples are difficult to polish after being clamped due to the fact that the thickness of the samples is smaller than that of the clamping plate in the prior art is solved, so that the sliding plate is higher in adaptability and more convenient to use.

Description

Sample pressure testing clamping device

Technical Field

The utility model belongs to the technical field of auxiliary clamps for metallographic sample preparation, and particularly relates to a sample pressure test clamping device.

Background

The metallographic phase sample preparation aims at displaying the real structure of a sample, wherein the sample can be metal, ceramic, cemented carbide or other solid materials; the sample preparation process may be divided into several steps, each of which requires precise operations to ensure accurate results. For single-piece product sample preparation or random disposable sample preparation entrusted by clients, a clamping method can be preferentially adopted, so that waste of various consumables of a chemical embedding method is avoided, particularly long solidification time waiting is avoided, the clamping method is high in efficiency, when a Vickers microhardness sample is carried out, the surface of the sample is required to be polished, and after the sample is embedded in a cold embedding or hot embedding mode, the embedding material is generally softer, the sample is easy to sink when a test pressure head is pressed down, the hardness value is smaller, and therefore a specific pressure testing clamping device is more required.

The prior art is as in application number of CN201620817342.7, has disclosed the clamping device used for measuring the Vickers hardness of the cross section of the sheet, the clamping device used for measuring the Vickers hardness of the cross section of the sheet that the above-mentioned technical scheme provides, simple in construction, can raise the accuracy of the Vickers measurement of the cross section of the sheet; however, after the clamping device clamps and fixes the thin plate in the practical use process, the clamped clamping device needs to be sent into the polishing device together to polish the surface of the thin plate, so that the height of the thin plate is required to be larger than the height of the highest point of the clamp, the clamp can block the thin plate, polishing of the thin plate is difficult to achieve, when the thickness of the thin plate is thinner, the clamp of the technical scheme is difficult to clamp the thin plate and polish the thin plate together, and therefore the application adaptability of the clamp is poor.

In order to solve the above problems, a sample pressure test clamping device is provided in the present application.

Disclosure of Invention

To solve the problems set forth in the background art. The utility model provides a sample pressure test clamping device which has the characteristics of adjustable clamping plate height and stronger use adaptability.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a sample pressure testing clamping device, includes the centre gripping platform, a plurality of evenly distributed's spacing groove has all been seted up to the relative both sides of centre gripping platform, the externally sliding of centre gripping platform installs the sliding plate, fixed sleeve is all installed to the corresponding both sides of sliding plate, slidable mounting has the spliced pole in the fixed sleeve, install in the fixed sleeve and cup joint spring on the spliced pole, the spring of setting can make the spacing plate insert the inside of spacing groove to can realize the prescribing a limit to the limiting plate height, the one end of spliced pole install with the spacing plate of spacing groove looks adaptation, threaded mounting has four threaded rods on the sliding plate, the centre gripping plate is installed in the one end rotation of threaded rod, four give way the groove that corresponds with the centre gripping plate position is seted up on the top of centre gripping platform.

As the sample pressure test clamping device is preferable, the connecting post is sleeved with the connecting sliding plate which is arranged in the fixed sleeve in a sliding way, one end of the spring is connected with the fixed sleeve, the other end of the spring is connected with the connecting sliding plate, the connecting sliding plate slides in the fixed sleeve, the connecting post is prevented from rotating, and further the limiting plate is prevented from rotating.

As the sample pressure test clamping device is preferable, the periphery sides of the clamping table are provided with the sliding grooves, the periphery sides of the inner part of the sliding plate are provided with the sliding blocks matched with the sliding grooves, and the sliding grooves can limit the sliding blocks and enable the sliding plate to slide up and down only along the direction of the sliding grooves so as to avoid deflection.

As the sample pressure test clamping device is preferable, one end of the threaded rod is provided with the connecting disc, the connecting disc is provided with the anti-slip protrusions, the friction force of the connecting disc can be increased by the arranged anti-slip protrusions, and the sample pressure test clamping device can save more labor during rotation.

As the sample pressure test clamping device is preferable, the clamping table is also provided with four sliding grooves corresponding to the positions of the yielding grooves, sliding blocks are arranged in the sliding grooves in a sliding manner, telescopic rods are arranged at the bottom ends of the sliding blocks, the telescopic ends of the telescopic rods are connected with the limiting plates, and the sliding grooves can limit the clamping plates and prevent the clamping plates from rotating.

As a preferable mode of the sample pressure test clamping device, a cavity is formed in the clamping table, a suction plate which is flush with the surface of the clamping table is arranged in the cavity, a plurality of through suction holes are formed in the suction plate, a connecting pipe is arranged on the clamping table, one end of the connecting pipe extends into the cavity, a gas one-way valve is arranged on the connecting pipe, an air inlet pipe which is communicated with the connecting pipe is arranged on the connecting pipe, and a valve is arranged on the air inlet pipe.

Compared with the prior art, the utility model has the beneficial effects that:

1. through fixed sleeve, spring, spliced pole, spacing groove and the limiting plate that set up, can realize the adjustment to the sliding plate height, and then can realize the adjustment to clamping plate height, the groove of stepping down of setting can step down for the clamping plate, has solved among the prior art to sample thickness be less than the clamping plate and lead to the technical problem that is difficult to polish to the sample after the centre gripping, adaptability is stronger, and it is more convenient to use;

2. through cavity, suction plate and the connecting pipe that set up, can be connected with vacuum generator, make it produce negative pressure, play further centre gripping fixed action to the sample, avoid it to take place to drop when polishing, can the centre gripping more stable.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a clamping table according to the present utility model;

fig. 3 is a front cross-sectional view of fig. 1 of the present utility model.

In the figure: 1. a clamping table; 101. a limit groove; 2. a sliding plate; 201. a fixed sleeve; 202. a connecting column; 203. a spring; 204. a limiting plate; 3. a threaded rod; 301. a clamping plate; 4. a relief groove; 401. a chute; 402. a slide block; 403. a telescopic rod; 5. a cavity; 501. a suction plate; 502. a connecting pipe; 503. a gas check valve; 504. an air inlet pipe; 505. and (3) a valve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The technical scheme in the embodiment of the application aims to solve the problems, and the overall thought is as follows:

example 1

1-3, a sample pressure testing clamping device comprises a clamping table 1, a plurality of evenly distributed limiting grooves 101 are formed in two opposite sides of the clamping table 1, a sliding plate 2 is mounted on the outer side of the clamping table 1 in a sliding mode, a fixed sleeve 201 is mounted on two corresponding sides of the sliding plate 2, a connecting column 202 is mounted in the fixed sleeve 201 in a sliding mode, a spring 203 sleeved on the connecting column 202 is mounted in the fixed sleeve 201, a limiting plate 204 matched with the limiting grooves 101 is mounted at one end of the connecting column 202, four threaded rods 3 are mounted on the sliding plate 2 in a threaded mode, a clamping plate 301 is mounted at one end of each threaded rod 3 in a rotating mode, four yielding grooves 4 corresponding to the positions of the clamping plate 301 are formed in the top end of the clamping table 1, the yielding grooves 4 are arranged to enable the clamping plate 301 to yield, and when a sample with the thickness smaller than the height of the clamping plate 301 is clamped, the height of the clamping plate 301 can be adjusted through adjusting the height of the sliding plate 2, and the height of the clamping plate 301 is prevented from being higher than the height of the sample, and subsequent sample polishing is affected.

In some examples, the connecting post 202 is sleeved with a connecting sliding plate slidably arranged inside the fixed sleeve 201, one end of the spring 203 is connected with the fixed sleeve 201, and the other end of the spring 203 is connected with the connecting sliding plate.

In some examples, the peripheral sides of the clamping table 1 are provided with sliding grooves, and the peripheral sides of the interior of the sliding plate 2 are provided with sliding blocks which are matched with the sliding grooves.

In some examples, one end of the threaded rod 3 is fitted with a connecting disc on which the stud is fitted.

In some examples, four sliding grooves 401 corresponding to the positions of the yielding grooves 4 are further formed in the clamping table 1, sliding blocks 402 are slidably arranged in the sliding grooves 401, telescopic rods 403 are mounted at the bottom ends of the inner portions of the sliding blocks 402, and telescopic ends of the telescopic rods 403 are connected with the limiting plates 204.

By adopting the technical scheme: when the threaded rod 3 is rotated, the clamping plate 301 can move, stable clamping and fixing of the periphery of a sample can be achieved, when the thickness of the sample is thinner than the height of the clamping plate 301, the two connecting columns 202 are pulled outwards simultaneously, the springs 203 are compressed, the limiting plate 204 is pulled out of the limiting groove 101, the height of the sliding plate 2 can be adjusted without limiting, the height of the clamping plate 301 can be adjusted, after the height of the clamping plate 301 is adjusted to a position lower than the sample, the connecting columns 202 are loosened, and under the action of the springs 203, the limiting plate 204 can be clamped into the corresponding limiting groove 101 again, and limiting of the sliding plate 2 can be achieved.

Example 2

In the specific structure of this embodiment, as shown in fig. 3, a cavity 5 is formed in the clamping table 1, a suction plate 501 flush with the surface of the clamping table 1 is installed in the cavity 5, a plurality of through suction holes are formed in the suction plate 501, a connecting pipe 502 is installed on the clamping table 1, one end of the connecting pipe 502 extends into the cavity 5, a gas one-way valve 503 is installed on the connecting pipe 502, an air inlet pipe 504 communicated with the connecting pipe 502 is provided, a valve 505 is installed on the air inlet pipe 504, the connecting pipe 502 is connected with a vacuum generator to vacuumize the cavity 5, so that negative pressure is generated, a sample placed on the clamping table 1 is adsorbed, a certain fixing effect is achieved on the sample, and falling of the sample due to insufficient firm clamping during subsequent polishing is avoided.

By adopting the technical scheme: after fixing the sample clamping through grip block 301, be connected with vacuum generator through connecting pipe 502, can adsorb the cavity 5 evacuation processing, and then can adsorb the sample, play further fixedly to it, avoid causing to drop when polishing in the follow-up, after accomplishing its inspection, open valve 505, the air just can enter into cavity 5 to can take off the sample from grip block 1.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The utility model provides a sample pressure testing clamping device which characterized in that: including centre gripping platform (1), a plurality of evenly distributed spacing groove (101) have all been seted up to the relative both sides of centre gripping platform (1), slide and install slide plate (2) in the outside of centre gripping platform (1), fixed sleeve (201) are all installed to the corresponding both sides of slide plate (2), install spliced pole (202) in fixed sleeve (201), install in fixed sleeve (201) cup joint spring (203) on spliced pole (202), install in one end of spliced pole (202) with spacing plate (204) of spacing groove (101) looks adaptation, install clamping plate (301) in the one end rotation of threaded rod (3) on slide plate (2), four and clamping plate (301) position corresponding groove (4) of stepping down have been seted up on the top of centre gripping platform (1).

2. The sample pressure testing clamping device of claim 1, wherein: the connecting column (202) is sleeved with a connecting sliding plate which is arranged inside the fixed sleeve (201) in a sliding mode, one end of the spring (203) is connected with the fixed sleeve (201), and the other end of the spring (203) is connected with the connecting sliding plate.

3. The sample pressure testing clamping device of claim 1, wherein: the sliding grooves are formed in the periphery sides of the clamping table (1), and sliding blocks matched with the sliding grooves are arranged in the periphery sides of the inside of the sliding plate (2).

4. The sample pressure testing clamping device of claim 1, wherein: one end of the threaded rod (3) is provided with a connecting disc, and the connecting disc is provided with an anti-slip bulge.

5. The sample pressure testing clamping device of claim 1, wherein: four sliding grooves (401) corresponding to the positions of the yielding grooves (4) are further formed in the clamping table (1), sliding blocks (402) are arranged in the sliding grooves (401) in a sliding mode, telescopic rods (403) are arranged at the bottom ends of the inner portions of the sliding blocks (402), and telescopic ends of the telescopic rods (403) are connected with limiting plates (204).

6. The sample pressure testing clamping device of claim 1, wherein: the utility model discloses a vacuum chuck, including clamping table (1), cavity (5) have been seted up in clamping table (1), install in cavity (5) with clamping table (1) surface parallel and level's suction plate (501), a plurality of suction holes that run through have been seted up on suction plate (501), install connecting pipe (502) on clamping table (1), the one end of connecting pipe (502) extends to in cavity (5), install gaseous check valve (503) on connecting pipe (502), be provided with intake pipe (504) that link up with it on connecting pipe (502), install valve (505) on intake pipe (504).