Sample clamp of scanning electron microscope in-situ stretching table
By designing a sample fixture with a hydraulic cylinder, a placement table and a movable base, the problem that the fixture in the prior art is difficult to adapt to samples of different specifications is solved, and the stable fixation and accurate detection of samples of different specifications is achieved.
Patent Information
- Application Number
- CN202420559069.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-03-21
AI Technical Summary
Existing fixtures are difficult to adapt to samples of different specifications, resulting in the samples that may shake during the inspection process, affecting the accuracy of the inspection, and the adjustment process is cumbersome.
A sample clamp for scanning electron microscope in-situ stretching table is designed. The hydraulic cylinder and the placement table are used to cooperate to achieve clamping and fixing samples of different thicknesses through the movement of the pressure plate and the fastening rod; at the same time, by setting up the placement groove, the pressure plate, the fastening rod and the socket, the sample is ensured to be fixed on the placement groove; the design of the base and the connecting rod allows movement between the bases to adapt to samples of different lengths.
It realizes stable fixation of samples of different specifications, improves the accuracy and efficiency of detection, simplifies the sample adjustment process, and makes the equipment more practical.
Smart Images
Figure CN222825487U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a sample clamp of an in-situ stretching platform of a scanning electron microscope. Background Art
[0002] In the process of developing metal materials, the mechanical properties of the materials are usually tested, and compression test is one of the basic methods for testing the mechanical properties of materials. It mainly measures the mechanical properties of materials under axial static pressure. When using a scanning electron microscope for compression test analysis, it is usually necessary to fix the sample on the test bench. The existing clamps are generally used to fix the samples, but there are often slight differences in the size and thickness of different samples, and the existing clamps can usually only match samples of a certain specification. When the size and specifications of the sample change, using the same clamp may cause the sample to shake, thereby affecting the accuracy of the test. In the prior art, samples of different specifications often need to be disassembled and reassembled, and the whole process is relatively cumbersome. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, the utility model provides a sample fixture for an in-situ stretching table of a scanning electron microscope, comprising a base, wherein two bases are provided, a connecting rod is movably fixed between the two bases, a pressure plate is movably fixed on the top of the base, and a placing table is fixed on the top of the base, and the pressure plate is located above the placing table.
[0004] Preferably, a hydraulic cylinder is fixedly provided on one side of the top of the base, a fixing plate is fixedly provided on the top of the hydraulic cylinder, a support plate is fixedly provided on the middle of the top of the fixing plate, a connecting plate is fixedly provided on the lateral side of the support plate, a pressure plate is fixedly provided on the middle of the bottom of the connecting plate, and four fastening rods are fixedly provided on both sides of the pressure plate on the bottom of the connecting plate.
[0005] Preferably, a placement groove is provided on the top of the placement table, and the placement groove is set in a convex shape. Four insertion holes are provided on both sides of the placement groove on the top of the placement table.
[0006] Preferably, the pressing plate is located above the placement slot, and the four fastening rods are individually plugged and fixed with the four insertion holes.
[0007] Preferably, a plurality of first positioning holes are provided on the connecting rod.
[0008] Preferably, a second positioning hole is provided on the base, and the left and right ends of the base are connected.
[0009] Preferably, the first positioning hole and the second positioning hole are of the same size.
[0010] Compared with the prior art, the utility model can achieve the following beneficial effects:
[0011] Through the cooperation between the hydraulic cylinder and the placement table, the pressing plate can be driven to move up and down, so that samples of different thicknesses can be clamped and fixed conveniently; by setting the placement slot, the pressing plate, the fastening rod and the socket, when the sample is placed on the placement slot, the fastening rod and the pressing plate move downward, so that the fastening rod is inserted into the socket, and the pressing plate presses the sample, so that the fixing effect is better; and the connecting rod and the base are set, and the two bases are sleeved on the connecting rod, which can facilitate the movement of the two bases, so that samples of different lengths can be conveniently fixed, making the equipment more practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the overall side structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the three-dimensional structure of the placement table of the utility model;
[0014] Figure 3 This is a schematic diagram of the front structure of the connecting plate of the utility model;
[0015] Figure 4 It is a schematic diagram of the structure of the placing table of the utility model from a top view.
[0016] Among them: 1. base; 2. hydraulic cylinder; 3. fixing plate; 4. support plate; 5. connecting plate; 6. pressing plate; 7. fastening rod; 8. placing table; 9. connecting rod; 10. first positioning hole; 11. second positioning hole; 12. placing slot; 13. socket. DETAILED DESCRIPTION
[0017] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.
[0018] Embodiment:
[0019] like Figures 1 to 4 As shown, the utility model provides a sample fixture for an in-situ stretching table of a scanning electron microscope, comprising a base 1, wherein two bases 1 are provided, a connecting rod 9 is movably fixed between the two bases 1, a pressure plate 6 is movably fixed on the top of the base 1, and a placing table 8 is fixed on the top of the base 1, and the pressure plate 6 is located above the placing table 8.
[0020] Further, a hydraulic cylinder 2 is fixedly provided on one side of the top of the base 1, a fixing plate 3 is fixedly provided on the top of the hydraulic cylinder 2, a support plate 4 is fixedly provided on the middle of the top of the fixing plate 3, a connecting plate 5 is fixedly provided on the lateral side of the support plate 4, a pressing plate 6 is fixedly provided on the middle of the bottom of the connecting plate 5, and four fastening rods 7 are fixedly provided on both sides of the pressing plate 6 at the bottom of the connecting plate 5. A placement groove 12 is provided on the top of the placement platform 8, and the placement groove 12 is set in a convex shape, and four plug holes 13 are provided on both sides of the placement groove 12 on the top of the placement platform 8. The pressing plate 6 is located above the placement groove 12, and the four fastening rods 7 are separately plugged and fixed with the four plug holes 13. With the above arrangement, when it is necessary to place and fix the sample, the sample is placed inside the placement groove 12, and then the hydraulic cylinder 2 is started, so that the connecting plate 5 moves downward, so that the fastening rod 7 is inserted into the plug hole 13, and the pressing plate 6 presses the sample, so that the sample is fixed more firmly and the effect is better.
[0021] Furthermore, a plurality of first positioning holes 10 are provided on the connecting rod 9. A second positioning hole 11 is provided on the base 1, and the left and right ends of the base 1 are connected. The first positioning hole 10 and the second positioning hole 11 are of the same size. Through the above arrangement, when fixing samples of different lengths, the two bases 1 can be translated to both sides on the connecting rod 9, so that the distance between the two placement tables 8 can be changed, thereby facilitating the fixing of samples of different lengths, so that the overall practical effect is better.
[0022] Working principle: When in use, the two bases 1 are arranged to face each other, so that the two placement tables 8 are arranged to face each other, and then the distance between the two bases 1 is adjusted so that the sample is just placed on the two placement grooves 12, and then the insertion rod is inserted into the first positioning hole 10 and the second positioning hole 11 to fix the two placement tables 8, and then the hydraulic cylinder 2 is started to move the pressing plate 6 downward, so that the fastening rod 7 is inserted into the inside of the insertion hole 13, and the pressing plate 6 is pressed downward on the sample, so that the sample is clamped and fixed, and it is not easy to shake.
[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sample holder for an in-situ stretching stage of a scanning electron microscope, comprising a base (1), characterized in that: The base (1) is provided in two pieces, a connecting rod (9) is movably fixed between the two bases (1), a pressure plate (6) is movably fixed on the top of the base (1), and a placement platform (8) is fixed on the top of the base (1), and the pressure plate (6) is located above the placement platform (8).
2. The sample fixture of the in-situ stretching stage of a scanning electron microscope according to claim 1, characterized in that: A hydraulic cylinder (2) is fixedly provided on one side of the top of the base (1), a fixing plate (3) is fixedly provided on the top of the hydraulic cylinder (2), a supporting plate (4) is fixedly provided on the middle of the top of the fixing plate (3), a connecting plate (5) is fixedly provided on the lateral side of the supporting plate (4), a pressing plate (6) is fixedly provided on the middle of the bottom of the connecting plate (5), and four fastening rods (7) are fixedly provided on both sides of the pressing plate (6) at the bottom of the connecting plate (5).
3. The sample fixture of the in-situ stretching stage of a scanning electron microscope according to claim 2, characterized in that: The top of the placing platform (8) is provided with a placing groove (12), the placing groove (12) is set in a convex shape, and the top of the placing platform (8) is provided with four insertion holes (13) on both sides of the placing groove (12).
4. The sample fixture of the in-situ stretching stage of a scanning electron microscope according to claim 3, characterized in that: The pressing plate (6) is located above the placement groove (12), and the four fastening rods (7) are individually matched with the four insertion holes (13) for insertion and fixing.
5. The sample fixture of the in-situ stretching stage of a scanning electron microscope according to claim 1, characterized in that: The connecting rod (9) is provided with a plurality of first positioning holes (10).
6. The sample fixture of the in-situ stretching stage of a scanning electron microscope according to claim 2, characterized in that: The base (1) is provided with a second positioning hole (11), and the left and right ends of the base (1) are connected.
7. The sample fixture of the in-situ stretching stage of a scanning electron microscope according to claim 5, characterized in that: The first positioning hole (10) and the second positioning hole (11) are of the same size.