CN215931722U

CN215931722U - In-situ stretching experimental device for scanning electron microscope

Info

Publication number: CN215931722U
Application number: CN202122488215.0U
Authority: CN
Inventors: 颜廷妹
Original assignee: Nanjing Mostar Intelligent Technology Co ltd
Current assignee: Nanjing Mostar Intelligent Technology Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-03-01
Anticipated expiration: 2031-10-15

Abstract

The utility model discloses an in-situ tensile experiment device for a scanning electron microscope, which comprises an experiment box, wherein two moving blocks are connected in the experiment box in a sliding manner, the box walls on the two sides of the experiment box are respectively and rotatably connected with a first threaded shaft and a second threaded shaft through bearings, the first threaded shaft and the second threaded shaft are respectively and threadedly connected with the adjacent moving blocks, each moving block is provided with a clamping mechanism, one end of the first threaded shaft, far away from the moving blocks, is fixedly connected with a first rocking handle, and the box wall of the experiment box, on one side of the second threaded shaft, is fixedly connected with a partition plate. In the stretching process, an experimenter can rotate the control button to enable the material sample in the stretching state to rotate circumferentially through the control shaft, so that a scanning electron microscope can scan and observe multiple surfaces and multiple angles of the material, the microcosmic appearance of the side surface of the material sample in the deformation process can be conveniently known, more data can be provided for analyzing the material, and the accuracy of the experiment is improved.

Description

In-situ stretching experimental device for scanning electron microscope

Technical Field

The utility model relates to the technical field of experimental machinery, in particular to an in-situ tensile experimental device for a scanning electron microscope.

Background

The in-situ stretching device is used for researching the microstructure deformation, damage and failure mechanism of a material under the action of load, has important practical significance for the development of material science, and the scanning electron microscope is an observation means between a transmission electron microscope and an optical microscope. The method utilizes a focused narrow high-energy electron beam to scan a sample, excites various physical information through the interaction between a light beam and a substance, and collects, amplifies and re-images the information to achieve the purpose of characterizing the microscopic morphology of the substance.

The existing tensile experiment device mostly adopts a method that one end is fixed and one end is stretched, because the tensile material is in a fixed state, a scanning electron microscope can only observe one surface of the material, and multi-angle scanning cannot be carried out, so that the micro-morphology of the side surface of a material sample when the material sample is deformed cannot be known, and in-situ observation cannot be carried out simultaneously, which brings great limitation to material analysis, and the in-situ tensile experiment device for the scanning electron microscope is provided for this reason.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides an in-situ stretching experimental device for a scanning electron microscope.

In order to achieve the purpose, the utility model adopts the following technical scheme:

scanning electron is with tensile experimental apparatus of normal position, including the experimental box, sliding connection has two movable blocks in the experimental box, the both sides tank wall of experimental box runs through the bearing respectively and rotates and is connected with first threaded spindle and second threaded spindle, first threaded spindle and second threaded spindle pass through threaded connection, every with adjacent movable block respectively all be equipped with fixture on the movable block.

Preferably, the one end fixedly connected with first rocking handle of the movable block of keeping away from of first threaded shaft, the experimental box is located second threaded shaft one side tank wall fixedly connected with baffle, second threaded shaft passes through the bearing with the baffle and rotates and be connected, the coaxial fixedly connected with worm wheel of one end that the movable block was kept away from to the second threaded shaft, the side tank wall rotates through the bearing and is connected with the worm around the experimental box, worm wheel and worm intermeshing, the one end of worm runs through the tank wall and the fixedly connected with second rocking handle of experimental box.

Preferably, the top of the experiment box is provided with an opening, and the top of the experiment box is rotatably connected with a transparent cover through a hinge at the position of the opening.

Preferably, the clamping mechanism comprises two disc-shaped rotating blocks, an arc-shaped groove is formed in one side, close to each other, of each of the two moving blocks, the two rotating blocks are respectively and rotatably connected with the arc-shaped grooves in the two moving blocks, a first clamping plate is welded on each rotating block, two sliding grooves are formed in each rotating block, a second clamping plate is connected with the two sliding grooves in a sliding mode, and the second clamping plate and the first clamping plate are connected with a connecting bolt through threads.

Preferably, a moving block close to the first threaded shaft is connected with a control shaft in a penetrating and rotating mode through a bearing, one end of the control shaft is fixedly connected with the rotating block in a coaxial mode, one end, far away from the rotating block, of the control shaft is connected with the box wall of the experiment box in a penetrating and sliding mode, and one end, located outside the experiment box, of the control shaft is fixedly connected with a control button in a coaxial mode.

Preferably, the bottom of the experimental box is provided with a plurality of suckers at equal intervals.

Compared with the prior art, the utility model has the advantages that:

1. the utility model utilizes the larger transmission ratio between the worm wheel and the worm, has the speed reduction effect, can more accurately control the distance when the material is stretched, can stretch at the same length and at different speeds by replacing the crank handle, increases the deformation micro-morphology variables of the material sample under different conditions when the material sample is stretched, and has wider practicability;

2. in the stretching process, an experimenter can rotate the control button to enable the material sample in the stretching state to rotate circumferentially through the control shaft, so that a scanning electron microscope can scan and observe multiple surfaces and multiple angles of the material, the microcosmic appearance of the side surface of the material sample in the deformation process can be conveniently known, more data can be provided for analyzing the material, and the accuracy of the experiment is improved.

Drawings

FIG. 1 is a schematic structural diagram of an in-situ tensile experimental apparatus for a scanning electron microscope according to the present invention;

FIG. 2 is a side view of the worm gear of the in-situ tensile testing apparatus for the scanning electron microscope according to the present invention;

fig. 3 is a structural side view of a clamping mechanism in the in-situ tensile experimental apparatus for the scanning electron microscope according to the present invention.

In the figure: the device comprises an experiment box 1, a moving block 2, a partition plate 3, a first threaded shaft 4, a first rocking handle 5, a second threaded shaft 6, a worm wheel 7, a worm 8, a second rocking handle 9, a transparent cover 10, an arch-shaped groove 11, a rotating block 12, a first clamping plate 13, a sliding groove 14, a second clamping plate 15, a connecting bolt 16, a control shaft 17 and a sucker 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, the in-situ tensile experimental device for the scanning electron microscope comprises an experimental box 1, wherein two movable blocks 2 are slidably connected in the experimental box 1, two side box walls of the experimental box 1 are respectively connected with a first threaded shaft 4 and a second threaded shaft 6 in a penetrating and rotating mode through bearings, the first threaded shaft 4 and the second threaded shaft 6 are respectively in threaded connection with the adjacent movable blocks 2, each movable block 2 is provided with a clamping mechanism, the top of the experimental box 1 is provided with an opening, and the top of the experimental box 1 is located at the opening and is rotatably connected with a transparent cover 10 through a hinge.

The one end fixedly connected with of the movable block 2 of keeping away from of first threaded shaft 4 shakes handle 5, experimental box 1 is located 6 one sides of second threaded shaft tank wall fixedly connected with baffle 3, second threaded shaft 6 passes through the bearing with baffle 3 and rotates and is connected, the coaxial fixedly connected with worm wheel 7 of one end of movable block 2 is kept away from to second threaded shaft 6, the front and back side tank wall of experimental box 1 rotates through the bearing and is connected with worm 8, worm wheel 7 and worm 8 intermeshing, the tank wall and the fixedly connected with second that experimental box 1 was run through to the one end of worm 8 shakes handle 9, utilize great drive ratio between worm wheel 7 and the worm 8, have the deceleration, make more accurate to the control of material tensile distance, the bottom equidistance of experimental box 1 is provided with a plurality of sucking discs 18, increase the stability of experimental box 1 when using, avoid meetting the experiment and produce the influence.

Fixture includes the turning block 12 of two disc types, two movable blocks 2 are close to one side mutually and have all seted up the arch-shaped groove 11, two turning blocks 12 rotate with the arch-shaped groove 11 on two movable blocks 2 respectively and are connected, the welding has a first splint 13 on every turning block 12, two spouts 14 have been seted up on every turning block 12, the common sliding connection of two spouts 14 has second splint 15, second splint 15 has a connecting bolt 16 through threaded connection with first splint 13, it runs through the rotation through the bearing on the movable block 2 that is close to first threaded shaft 4 and is connected with a control shaft 17, the one end and the coaxial fixed connection of turning block 12 of control shaft 17, the one end that turning block 12 was kept away from to control shaft 17 runs through sliding connection with the tank wall of experimental box 1, control shaft 17 is located the outer coaxial fixedly connected with control button of one end of experimental box 1.

When the device is used, the first rocking handle 5 is rotated according to the length of a material to adjust the distance between two moving blocks 2, then two ends of a material sample are respectively placed on two first clamping plates 13, the connecting bolt 16 is rotated to enable the second clamping plate 15 to be pressed downwards to clamp and fix the material sample under the combined action of the second clamping plate 13, then the whole experimental box 1 is moved to a scanning electron microscope, the fixation of the experimental box 1 is enhanced through a sucking disc 18, the scanning electron microscope is started, the first rocking handle 5 or the second rocking handle 9 is slowly rotated to drive the moving blocks 2 to move to stretch the material sample, the same distance and different speeds can be generated when the first rocking handle 5 or the second rocking handle 9 is rotated, the deformation micro-morphology variables of the material sample under different conditions are increased, the practicability of the device is wider, an experimenter can rotate a control button to enable the material sample in a stretching state to rotate circumferentially through the control shaft 17, the scanning electron microscope can scan and observe multiple surfaces and multiple angles of the material, so that the microcosmic appearance of the side surface of the material sample when the material sample deforms can be conveniently known, more data are provided for analyzing the material, and the accuracy of an experiment is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. Scanning electron microscope is with tensile experimental apparatus of normal position, including experimental box (1), its characterized in that, sliding connection has two movable blocks (2) in experimental box (1), the both sides tank wall of experimental box (1) runs through the bearing respectively and rotates and is connected with first screw thread axle (4) and second screw thread axle (6), first screw thread axle (4) and second screw thread axle (6) pass through threaded connection with adjacent movable block (2) respectively, every all be equipped with fixture on movable block (2).

2. The in-situ tensile test device for the scanning electron microscope according to claim 1, wherein a first handle (5) is fixedly connected to one end of the first threaded shaft (4) far away from the moving block (2), the test box (1) is fixedly connected with a partition plate (3) on the box wall on one side of the second threaded shaft (6), the second threaded shaft (6) is rotatably connected with the partition plate (3) through a bearing, a worm wheel (7) is coaxially and fixedly connected to one end of the second threaded shaft (6) far away from the moving block (2), the front and rear box walls of the test box (1) are rotatably connected with a worm (8) through a bearing, the worm wheel (7) and the worm (8) are meshed with each other, and one end of the worm (8) penetrates through the box wall of the test box (1) and is fixedly connected with a second handle (9).

3. The in-situ tensile experimental device for the scanning electron microscope as claimed in claim 1, wherein the top of the experimental box (1) is opened, and the top of the experimental box (1) is hinged with a transparent cover (10) at the opened position.

4. The in-situ tensile test device for the scanning electron microscope according to claim 1, wherein the clamping mechanism comprises two disk-shaped rotating blocks (12), the two moving blocks (2) are provided with an arc-shaped groove (11) on one side close to each other, the two rotating blocks (12) are respectively rotatably connected with the arc-shaped grooves (11) on the two moving blocks (2), each rotating block (12) is welded with a first clamping plate (13), each rotating block (12) is provided with two sliding grooves (14), the two sliding grooves (14) are jointly and slidably connected with a second clamping plate (15), and the second clamping plate (15) and the first clamping plate (13) are connected with a connecting bolt (16) through a thread.

5. The in-situ tensile test device for the scanning electron microscope according to claim 4, wherein a control shaft (17) is rotatably connected to the moving block (2) close to the first threaded shaft (4) through a bearing in a penetrating manner, one end of the control shaft (17) is fixedly connected to the rotating block (12) in a coaxial manner, one end of the control shaft (17) far away from the rotating block (12) is slidably connected to the wall of the experiment box (1) in a penetrating manner, and one end of the control shaft (17) located outside the experiment box (1) is fixedly connected to a control button in a coaxial manner.

6. The in-situ tensile experimental apparatus for scanning electron microscope according to claim 1, wherein the bottom of the experimental box (1) is provided with a plurality of suckers (18) at equal intervals.