阅读说明：本技术 一种可调宽口样品夹持台 (Adjustable wide mouthful of sample centre gripping platform ) 是由 郭新勇 李盛 王晓丽 于 2018-08-17 设计创作，主要内容包括：本发明专利涉及一种可调宽口样品夹持台,用于扫描电镜中固定样品。该样品台适用于固定不同尺寸的扫描样品。在样品夹持台的侧壁上设置长螺钉,大头螺母在槽内部。槽内设置活动金属条,该金属条底部中间部位设有与螺母大头相配套的孔,金属条可以安在螺钉上且方便取下。该活动金属条和长螺钉配套使用,可设置一套或者两套。工作方式是活动金属条套在螺钉上,旋转螺母,带动活动金属条移动,将不同尺寸的样品固定在样品槽另一侧侧壁。测试完后,旋转螺母,松开活动金属条。本发明优点是样品台槽口宽度灵活可调,夹持样品固定牢固,特别是大的、重的或者不规则,不易固定以及需要旋转观察的样品。(The invention relates to a sample clamping table with an adjustable width opening, which is used for fixing a sample in a scanning electron microscope. The sample stage is suitable for fixing scanning samples of different sizes. The side wall of the sample clamping table is provided with a long screw, and a large-head nut is arranged in the groove. The groove is internally provided with a movable metal strip, the middle part of the bottom of the metal strip is provided with a hole matched with the big end of the nut, and the metal strip can be arranged on the screw and is convenient to take down. The movable metal strip and the long screw are matched for use, and one set or two sets can be arranged. The working mode is that the movable metal strip is sleeved on the screw, the nut is rotated to drive the movable metal strip to move, and samples with different sizes are fixed on the side wall of the other side of the sample tank. And after the test is finished, the nut is rotated, and the movable metal strip is loosened. The invention has the advantages that the width of the notch of the sample table is flexible and adjustable, and the sample is firmly clamped, especially large, heavy or irregular, and is not easy to fix and needs to be observed in a rotating way.)

1. A sample clamping table with an adjustable width opening is characterized in that a rotatable large-head screw is arranged on the side wall of a sample groove, a nut head is arranged inside the groove, a movable metal strip is arranged in the groove, and the sample clamping table is arranged on the screw through a hole in the middle of the bottom of the movable metal strip.

2. A sample clamping table with an adjustable width opening is characterized in that a sample groove is square or circular.

3. A sample clamping table with an adjustable width opening is characterized in that a set of large-head long screws and movable metal strips are arranged on the side wall of one side.

4. A sample clamping table with an adjustable width opening is characterized in that a set of large-head long screw and a set of movable metal strip are respectively arranged on the side walls of two sides.

5. A sample clamping table with an adjustable width opening is characterized in that a long screw is rotated to move the position of a movable metal strip, so that a sample is clamped and fixed.

6. A sample clamping table with an adjustable width opening is characterized in that a movable metal strip can be loosened by reversely rotating a nut, and a sample and the movable metal strip can be taken out.

Technical Field

The invention relates to a sample clamping table with an adjustable width opening, belonging to the field of microscopic analysis.

Background

The scanning electron microscope is an instrument which uses a beam of superfine electron beams to scan a sample, excites secondary electrons on the surface of the sample and analyzes a solid material. The sample stage is a tool for bearing a sample and adjusting, and the proper sample observation position can be obtained by adjusting and moving the sample stage. However, the conventional sample stage has some problems in observing the sample: 1. when the sample is large in size and irregular in shape, some auxiliary materials are usually needed to support the sample, so that the sample can be placed on the sample table more smoothly. Therefore, in the observation process, the auxiliary supporting material is likely to loosen along with the movement of the sample stage, so that the sample is moved, the quality of an observed image is affected, and the sample stage can be dropped down to damage a scanning electron microscope in serious cases. 2. When a large-size or heavy sample needs to be obliquely observed, even if the sample is fixed on the sample table through the conductive adhesive, the inclination angle cannot be too large, otherwise the sample is easy to slide off the sample table. The technical scheme adopted by the invention for solving the technical problem is as follows: a sample table with simple structure, firm fixation and adjustable clamping space is designed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and designs a sample table which has simple structure, easy manufacture, firm fixation and adjustable clamping space;

in order to achieve the purpose, the sample clamping table is designed into a wide-mouth sample groove and is characterized in that a rotatable large-head screw is arranged on the side wall of the sample groove, and a nut head is arranged in the groove. The groove is internally provided with a movable metal strip which is arranged on the screw through a hole in the middle of the bottom of the movable metal strip. And the shape of the sample groove can be square or round;

the novel working mode is characterized in that the movable metal strip is sleeved on the screw, the nut is rotated to drive the movable metal strip to move, samples with different sizes are fixed between the side wall of the other side of the sample tank and the movable metal strip or two long screws are moved simultaneously, and the samples are fixed between the two movable metal strips. After the test is finished, the nut is rotated, the movable metal strip is loosened, and the sample and the movable metal strip can be directly taken out;

the invention will be further explained with reference to the drawings. Comprises a sample groove, a side wall, one or two metal movable strips and one or two long screws;

the invention has the beneficial effects that: (1) the structure is simple, the manufacture is easy, (2) the clamping and fixing are firm, (3) the clamping space is adjustable;

description of the drawings: FIG. 1: is a front view schematic diagram of a square clamping table. FIG. 2: is a schematic top view of a square clamping table. FIG. 3: is a schematic top view of the circular clamping table;

the specific implementation mode is as follows:

the technical solution of the present invention is illustrated by the following specific examples, but the scope of the present invention is not limited thereto: example 1: the square clamping table is provided with a set of metal movable strip and long screws, the length of the clamping table is 2cm, the width of the clamping table is 2cm, and a sample with the length of 5-10mm can be fixed by moving the movable strip. Example 2: the square clamping table is provided with two sets of metal movable strips and long screws, the length of the clamping table is 2cm, the width of the clamping table is 4cm, and the movable strips can be moved to fix a sample with the thickness of less than 30 mm.