Sample table of X-ray diffractometer

Abstract

The utility model provides an X-ray diffractometer sample table, which relates to the technical field of X-ray diffractometer measurement and comprises a protection plate, an operation bin is arranged on one side of the protection plate, a fixing table is mounted at the center of the bottom of an inner cavity of the operation bin, and an X-ray diffractometer is mounted at the top of the inner cavity of the operation bin. The device comprises a fixed table, a fixed groove is formed in the fixed table, a moving device is arranged in the fixed groove, a sample table is installed at the top of the moving device, a sinking groove is formed in the sample table, and a lifting device is arranged in an inner cavity of the sinking groove. According to the device, the X-ray diffractometer, the first positive and negative motor and the two second positive and negative motors are electrically connected with the external controller, when a sample in the placing groove is replaced, the first positive and negative motor is started through the external controller, and a transmission shaft and a gear are driven to rotate while a movable plate is driven to move in the direction of a limiting block in a T-shaped groove.

Description

Technical Field

[0001] The utility model relates to the technical field of X-ray diffractometer measurement, in particular to an X-ray diffractometer sample table. Background Art

[0002] X-ray diffractometer measurement is an important means to identify the phase structure of materials. When X-rays are incident on the crystal plane of a certain lattice lattice at a grazing angle θ, under the condition of meeting the Bragg equation, diffraction lines will be obtained in the reflection direction due to superposition and strengthened, and will be reflected from the reflection surface that meets the Bragg equation at each angle θ. After measuring θ, the lattice plane spacing, unit cell size and type of the material can be determined. According to the intensity of the diffraction line, the arrangement of atoms in the unit cell can be further determined.

[0003] In the prior art, when using an X-ray diffractometer sample stage to replace samples that need to be subjected to X-ray diffraction, some taller samples are not easy to put in due to the small internal space of the operating chamber. Secondly, when performing X-ray diffraction on the samples, the different heights of some samples and the uneven heights of the samples and the sample stage lead to inaccurate data and affect the effect of the X-ray diffractometer. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an X-ray diffractometer sample stage, comprising: a protective plate, an operating chamber is opened on one side of the protective plate, a fixed table is installed at the center of the bottom of the inner cavity of the operating chamber, an X-ray diffractometer is installed on the top of the inner cavity of the operating chamber, a fixed groove is opened inside the fixed table, a moving device is arranged inside the fixed groove, a sample stage is installed on the top of the moving device, a sinking groove is opened inside the sample stage, and a lifting device is arranged in the inner cavity of the sinking groove.

[0006] As a preferred embodiment, legs are installed at the four ends of the bottom of the protective plate, a limiting groove is opened on the top of the fixed platform, T-shaped grooves are opened on both sides of the top of the inner cavity of the fixed groove, an outlet groove is opened on one side of the fixed platform, and a placement groove is opened at the center of the top of the sample platform.

[0007] As a preferred embodiment, the moving device includes a first forward and reverse motor, the output end of the first forward and reverse motor is fixedly connected to a transmission shaft, both ends of the surface of the transmission shaft are fixedly sleeved with gears, the surfaces of the two gears are meshingly connected with a moving plate, limit blocks are installed on both sides of the moving plate, and a connecting plate is installed at the center of the top of the moving plate.

[0008] As a preferred embodiment, one end of the first forward and reverse motor is installed on one side of the fixed platform, one end of the surface of the transmission shaft passes through one side of the fixed platform, and the other end of the transmission shaft is installed on one side of the inner cavity of the fixed groove through a bearing, and the surfaces of the two limit blocks are movably embedded in the two T-shaped grooves, and the surface of the connecting plate is movably embedded in the limit groove.

[0009] As a preferred embodiment, the lifting device includes two second forward and reverse motors, the output ends of the two second forward and reverse motors are fixedly connected to threaded rods, the surfaces of the two threaded rods are threadedly sleeved with lifting plates, the four ends of the top of the lifting plate are movably embedded with guide rods, and a sample slot is opened at the center of the top of the lifting plate.

[0010] As a preferred embodiment, the bottoms of the two second forward and reverse motors are installed at the bottom of the inner cavity of the sinking trough, the tops of the two threaded rods are installed at the top of the inner cavity of the sinking trough through bearings, and the two ends of the four guide rods are installed on both sides of the inner wall of the sinking trough, and the sample trough is located directly below the placement trough.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, the X-ray diffractometer, the first forward and reverse motor and the two second forward and reverse motors are electrically connected to the external controller. When replacing the sample inside the placement slot, the first forward and reverse motor is started by the external controller, which drives the transmission shaft and the gear to rotate and drives the movable plate to move along the direction of the limit block inside the T-shaped slot, and drives the connecting plate and the sample stage to move along the inside of the limit slot, and moves the sample stage to the outside of the operation chamber, so as to facilitate the replacement of samples that need to be subjected to X-ray diffraction, and avoid the influence that some higher samples are difficult to put in due to the small internal space of the operation chamber when replacing the samples that need to be subjected to X-ray diffraction.

[0013] 2. In the utility model, when replacing the sample, the sample is placed from the placement slot into the interior of the sample slot, and then the second forward and reverse motor is started by the external controller to drive the threaded rod to rotate, while driving the lifting plate to move up and down along the direction of the guide rod, so that samples of different heights are adjusted to be flush with the top of the sample stage, and it is also avoided that when performing X-ray diffraction on the sample, the data is inaccurate and the effect of the X-ray diffractometer is affected due to the different heights of some samples and the uneven heights of the sample and the sample stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a top-down stereoscopic structure of an X-ray diffractometer sample stage provided by the utility model;

[0015] Figure 2A schematic diagram of the top view of the three-dimensional structure of a sample stage of an X-ray diffractometer sample stage provided by the utility model;

[0016] Figure 3 A schematic diagram of a top-down stereoscopic structure of a fixed platform of an X-ray diffractometer sample stage provided by the utility model;

[0017] Figure 4 A schematic diagram of the three-dimensional structure of a moving device for an X-ray diffractometer sample stage provided by the utility model;

[0018] Figure 5 A schematic diagram of a top-down three-dimensional structure of a lifting device for an X-ray diffractometer sample stage provided by the utility model;

[0019] Figure 6 The utility model provides a schematic diagram of a three-dimensional structure of a lifting device for an X-ray diffractometer sample stage when viewed from above.

[0020] Legend:

[0021] 1. Protective plate; 101. Support legs; 102. Operating chamber; 103. X-ray diffractometer; 104. Fixed table; 105. Fixed slot; 106. Limiting slot; 107. T-slot; 108. Outlet; 2. Moving device; 201. First forward and reverse motor; 202. Transmission shaft; 203. Gear; 204. Moving plate; 205. Limiting block; 206. Connecting plate; 3. Sample table; 301. Sinking slot; 302. Placement slot; 4. Lifting device; 401. Second forward and reverse motor; 402. Threaded rod; 403. Lifting plate; 404. Guide rod; 405. Sample slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-6 The utility model provides a technical solution: an X-ray diffractometer sample stage, comprising: a protective plate 1, an operating chamber 102 is opened on one side of the protective plate 1, a fixed platform 104 is installed at the center of the bottom of the inner cavity of the operating chamber 102, an X-ray diffractometer 103 is installed on the top of the inner cavity of the operating chamber 102, a fixed groove 105 is opened inside the fixed platform 104, a moving device 2 is arranged inside the fixed groove 105, a sample stage 3 is installed on the top of the moving device 2, a sinking groove 301 is opened inside the sample stage 3, and a lifting device 4 is arranged in the inner cavity of the sinking groove 301.

[0024] Specifically: the sample stage 3 is moved out of the operation chamber 102 by the moving device 2 to facilitate taking and placing of the sample, and then the sample is adjusted to be flush with the sample stage 3 by the lifting device 4 to prevent inaccurate detection data.

[0025] In one embodiment, legs 101 are installed at the four ends of the bottom of the protective plate 1, a limiting groove 106 is opened on the top of the fixed platform 104, T-shaped grooves 107 are opened on both sides of the top of the inner cavity of the fixed groove 105, an outlet slot 108 is opened on one side of the fixed platform 104, and a placement groove 302 is opened at the center of the top of the sample stage 3.

[0026] Specifically: the protective plate 1 is supported by the supporting legs 101, and the connecting plate 206 and the limiting block 205 are limited by the limiting grooves 106 and the T-shaped grooves 107, thereby playing the role of supporting and limiting.

[0027] In one embodiment, the moving device 2 includes a first forward and reverse motor 201, the output end of the first forward and reverse motor 201 is fixedly connected to a transmission shaft 202, both ends of the surface of the transmission shaft 202 are fixedly sleeved with gears 203, the surfaces of the two gears 203 are meshingly connected with a moving plate 204, limit blocks 205 are installed on both sides of the moving plate 204, and a connecting plate 206 is installed at the center of the top of the moving plate 204.

[0028] Specifically, racks meshing with the gear 203 are installed on both sides of the bottom of the movable plate 204. The first forward and reverse motor 201 drives the movable plate 204 and the connecting plate 206 to move along the direction of the limit block 205, which facilitates the placement and removal of samples.

[0029] In one embodiment, one end of the first forward and reverse motor 201 is installed on one side of the fixed platform 104, one end of the surface of the transmission shaft 202 passes through one side of the fixed platform 104, and the other end of the transmission shaft 202 is installed on one side of the inner cavity of the fixed groove 105 through a bearing. The surfaces of the two limit blocks 205 are movably embedded in the two T-shaped grooves 107, and the surface of the connecting plate 206 is movably embedded in the limit groove 106.

[0030] Specifically, the first forward and reverse motor 201 , the transmission shaft 202 , the limiting block 205 and the connecting plate 206 are fixed and limited by the fixing platform 104 , the fixing slot 105 , the T-shaped slot 107 and the limiting slot 106 , thus playing the role of limiting and fixing.

[0031] In one embodiment, the lifting device 4 includes two second forward and reverse motors 401, the output ends of the two second forward and reverse motors 401 are fixedly connected to threaded rods 402, the surfaces of the two threaded rods 402 are threadedly sleeved with lifting plates 403, the four ends of the top of the lifting plates 403 are movably embedded with guide rods 404, and a sample slot 405 is opened at the center of the top of the lifting plates 403.

[0032] Specifically, the second forward and reverse motor 401 drives the lifting plate 403 to move up and down along the direction of the guide rod 404 , thereby adjusting the level of the sample and the sample stage 3 .

[0033] In one embodiment, the bottoms of the two second forward and reverse motors 401 are installed at the bottom of the inner cavity of the sinking trough 301, the tops of the two threaded rods 402 are installed at the top of the inner cavity of the sinking trough 301 through bearings, and both ends of the four guide rods 404 are installed on both sides of the inner wall of the sinking trough 301, and the sample slot 405 is located directly below the placement slot 302.

[0034] Specifically, the second forward and reverse motor 401 , the threaded rod 402 and the guide rod 404 are fixed and connected through the sinking groove 301 , thus playing the role of connection and fixing.

[0035] Working principle: The X-ray diffractometer 103, the first forward and reverse motor 201 and the two second forward and reverse motors 401 are electrically connected to the external controller. When replacing the sample in the placement slot 302, the first forward and reverse motor 201 is started by the external controller to drive the transmission shaft 202 and the gear 203 to rotate, and at the same time drive the moving plate 204 to move along the direction of the limit block 205 inside the T-shaped slot 107, and at the same time drive the connecting plate 206 and the sample stage 3 to move along the inside of the limit slot 106, and move the sample stage 3 to the outside of the operation chamber 102, so as to facilitate the replacement of the sample that needs to be subjected to X-ray diffraction, and avoid the need for X-ray diffraction during the replacement. When performing X-ray diffraction on samples, some higher samples are not easy to be placed in due to the small internal space of the operation chamber 102; when replacing the sample, the sample is placed from the placement slot 302 into the sample slot 405, and then the second forward and reverse motor 401 is started by the external controller to drive the threaded rod 402 to rotate, while driving the lifting plate 403 to move up and down along the direction of the guide rod 404, so that samples of different heights are adjusted to be flush with the top of the sample stage 3, which also avoids inaccurate data and affects the effect of the X-ray diffractometer due to the different heights of some samples and the uneven heights of the samples and the sample stage 3 when performing X-ray diffraction on the samples.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An X-ray diffractometer sample stage, characterized in that: include: A protective plate (1), an operating chamber (102) is provided on one side of the protective plate (1), a fixed platform (104) is installed at the center of the bottom of the inner cavity of the operating chamber (102), an X-ray diffractometer (103) is installed on the top of the inner cavity of the operating chamber (102), a fixed groove (105) is provided inside the fixed platform (104), a moving device (2) is provided inside the fixed groove (105), a sample stage (3) is installed on the top of the moving device (2), a sinking groove (301) is provided inside the sample stage (3), and a lifting device (4) is provided in the inner cavity of the sinking groove (301).

2. The X-ray diffractometer sample stage according to claim 1, characterized in that: The four ends of the bottom of the protective plate (1) are all equipped with supporting legs (101), the top of the fixing platform (104) is provided with a limiting groove (106), both sides of the top of the inner cavity of the fixing groove (105) are provided with T-shaped grooves (107), one side of the fixing platform (104) is provided with an outlet slot (108), and the center of the top of the sample platform (3) is provided with a placement groove (302).

3. The X-ray diffractometer sample stage according to claim 1, characterized in that: The moving device (2) comprises a first forward and reverse motor (201), the output end of the first forward and reverse motor (201) is fixedly connected to a transmission shaft (202), both ends of the surface of the transmission shaft (202) are fixedly sleeved with gears (203), the surfaces of the two gears (203) are meshingly connected to a moving plate (204), both sides of the moving plate (204) are installed with limit blocks (205), and a connecting plate (206) is installed at the center of the top of the moving plate (204).

4. The X-ray diffractometer sample stage according to claim 3, characterized in that: One end of the first forward and reverse motor (201) is mounted on one side of the fixed platform (104), one end of the surface of the transmission shaft (202) passes through one side of the fixed platform (104), and the other end of the transmission shaft (202) is mounted on one side of the inner cavity of the fixed groove (105) through a bearing, and the surfaces of the two limit blocks (205) are movably embedded in the two T-shaped grooves (107), and the surface of the connecting plate (206) is movably embedded in the limit groove (106).

5. The X-ray diffractometer sample stage according to claim 1, characterized in that: The lifting device (4) comprises two second forward and reverse motors (401), the output ends of the two second forward and reverse motors (401) are fixedly connected with threaded rods (402), the surfaces of the two threaded rods (402) are threadedly sleeved with lifting plates (403), the four ends of the top of the lifting plate (403) are movably embedded with guide rods (404), and a sample groove (405) is opened at the center of the top of the lifting plate (403).

6. The X-ray diffractometer sample stage according to claim 5, characterized in that: The bottoms of the two second forward and reverse motors (401) are installed at the bottom of the inner cavity of the sinking trough (301), the tops of the two threaded rods (402) are installed at the top of the inner cavity of the sinking trough (301) through bearings, and the two ends of the four guide rods (404) are installed on both sides of the inner wall of the sinking trough (301), and the sample trough (405) is located directly below the placement trough (302).

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