Limiting device for vertical X-ray diffractometer

Abstract

The utility model relates to the technical field of precise instrument design, automatic control and safety engineering, in particular to a limiting device for a vertical X-ray diffractometer, which comprises a frame, an angular instrument is fixedly mounted at the center of the front surface of the frame, and a detector arm is fixedly mounted on the front side of the angular instrument. According to the utility model, the problems that the light tube arm and the detector arm are relatively poor in measurement precision and easy to collide with each other when rotating and moving in the current measurement process are solved, expensive and precise parts such as a light tube and a detector can be protected, the maintenance and replacement cost is reduced, accidental collision caused by human errors or software faults is avoided, and the measurement accuracy is improved. The safety level of overall operation is improved, mechanical operation is stable, accidental collision is avoided, the continuity and precision of the measurement process are ensured, the reliability and repeatability of experimental results are improved, abrasion and damage caused by excessive movement and collision are reduced, and therefore the service life of equipment is prolonged, and the rate of return on investment is increased.

Description

Technical Field

[0001] The utility model relates to the technical fields of precision instrument design, automatic control and safety engineering, and in particular to a limiting device used in a vertical X-ray diffractometer. Background Art

[0002] X-ray diffraction is a technique used for material analysis. It obtains the crystal structure information of the material by measuring the diffraction angle and intensity of X-rays in the sample. The core components of the XRD equipment include the light tube (generating X-rays), the sample stage and the detector (receiving the diffracted X-rays).

[0003] During the measurement process, the light tube arm and the detector arm will rotate and move to adjust the position of the light tube and the detector to meet different measurement requirements. These movements need to be precisely controlled to avoid collision with each other, protect the equipment and ensure measurement accuracy. In order to solve the above technical problems, we designed a limit device for the vertical X-ray diffractometer. Utility Model Content

[0004] The purpose of the utility model is to provide a limit device for a vertical X-ray diffractometer, which has the advantage of limit protection and solves the problem that during the current measurement process, the light tube arm and the detector arm rotate and move, the measurement accuracy is poor, and they are easy to collide with each other.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a limit device for a vertical X-ray diffractometer, comprising a frame, a goniometer is fixedly installed at the center of the front surface of the frame, a detector arm is fixedly installed on the front side of the goniometer, a detector is installed on the front surface of the detector arm, a light pipe arm is arranged at the center of the front surface of the frame and in front of the detector arm, an X-ray light pipe is arranged on the top of the light pipe arm, a sample table is arranged on the front side of the light pipe arm, an arc groove is fixedly installed on the surface of the frame, an upper limit stop of the light pipe is arranged above the top of the inner cavity of the arc groove, an upper limit stop of the detector is arranged below the top of the inner cavity of the arc groove, a lower limit stop of the light pipe is arranged on the left side of the inner cavity of the arc groove, a lower limit stop of the detector is arranged on the right side of the inner cavity of the arc groove, and a light pipe detector anti-collision limit stop is fixedly installed at the upper right corner of the inner cavity of the arc groove.

[0006] Preferably, the rotation axes of the light tube arm and the detector arm are the same and are both located at the center of the arc groove.

[0007] Preferably, the upper end of the detector arm is a rectangular structure, and the lower end is a fan-shaped structure, and the rear side of the detector arm extends to the inner cavity of the arc-shaped groove and is in sliding contact with the inner wall thereof.

[0008] Preferably, the rear side of the sample stage is rotatably connected to the front surface of the frame via a rotating rod, a dual-axis motor is fixedly installed on the rear side of the frame and located at the rear side of the sample stage, and the output shaft of the dual-axis motor is fixedly connected to the rotating rod.

[0009] Preferably, a first pulley is fixedly mounted on the surface of the dual-axis motor, a driving rod is fixedly connected to the top of the rear side of the detector arm, a second pulley is mounted on the surface of the driving rod, and the first pulley is connected to the pulley through a belt drive.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] 1. Through limit control, it can effectively prevent excessive movement and collision, protect expensive and precise components such as light tubes and detectors, and reduce maintenance and replacement costs.

[0012] 2. Limit control ensures the safety of equipment operation, avoids accidental collisions caused by human errors or software failures, and improves the overall safety level of operation.

[0013] 3. Stable mechanical operation and avoidance of accidental collisions ensure the continuity and accuracy of the measurement process and improve the reliability and repeatability of the experimental results.

[0014] 4. Reduce wear and damage caused by excessive movement and collision, thereby extending the service life of the equipment and improving the return on investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a rear view structural diagram of the utility model;

[0017] Figure 3 It is a left-side structural schematic diagram of the utility model.

[0018] In the figure: 1. X-ray light tube; 2. Detector; 3. Sample stage; 4. Light tube arm; 5. Detector arm; 6. Goniometer; 7. Light tube lower limit; 8. Light tube upper limit; 9. Detector lower limit; 10. Detector upper limit; 11. Light tube and detector anti-collision limit; 12. Rack; 13. Arc groove. DETAILED DESCRIPTION

[0019] See also Figure 1-Figure 3, a limiting device for a vertical X-ray diffractometer, comprising a frame 12, a goniometer 6 is fixedly installed at the center of the front surface of the frame 12, a detector arm 5 is fixedly installed on the front side of the goniometer 6, a detector 2 is installed on the front surface of the detector arm 5, a light pipe arm 4 is arranged at the center of the front surface of the frame 12 and in front of the detector arm 5, an X-ray light pipe 1 is arranged on the top of the light pipe arm 4, a sample stage 3 is arranged on the front side of the light pipe arm 4, an arc groove 13 is fixedly installed on the surface of the frame 12, a light pipe upper limit 8 is arranged above the top of the inner cavity of the arc groove 13, and a A detector upper limit 10 is provided, a light tube lower limit 7 is provided on the left side of the inner cavity of the arc groove 13, and a detector lower limit 9 is provided on the right side of the inner cavity of the arc groove 13. Through the limit control, excessive movement and collision can be effectively prevented, and expensive and precise components such as the X-ray light tube 1 and the detector 2 can be protected, and the maintenance and replacement costs can be reduced. A light tube detector anti-collision limit 11 is fixedly installed at the upper right corner of the inner cavity of the arc groove 13. By setting the light tube detector anti-collision limit 11, it can effectively avoid the collision between the X-ray light tube 1 and the detector 2 during the rotation and movement, and effectively protect the equipment;

[0020] See also Figure 1 and Figure 2 , the rotation axes of the light tube arm 4 and the detector arm 5 are the same and are both located at the center of the arc groove 13;

[0021] See also Figure 1 and Figure 2 , the upper end of the detector arm 5 is a rectangular structure, the lower end is a fan-shaped structure, and the rear side of the detector arm 5 extends to the inner cavity of the arc-shaped groove 13 and is in sliding contact with the inner wall thereof;

[0022] See also Figure 1 and Figure 3 The rear side of the sample stage 3 is rotatably connected to the front surface of the frame 12 through a rotating rod, and a dual-axis motor is fixedly installed on the rear side of the frame 12 and located on the rear side of the sample stage 3, and the output shaft of the dual-axis motor is fixedly connected to the rotating rod;

[0023] See also Figure 3 A pulley 1 is fixedly mounted on the surface of the dual-axis motor, a driving rod is fixedly connected to the top of the rear side of the detector arm 5, a pulley 2 is mounted on the surface of the driving rod, and the pulley 1 is connected to the pulley through a belt drive.

[0024] When in use, the high and low limit controls of the light tube arm 4 and the detector arm 5 prevent excessive movement of the arms by setting the light tube lower limit 7, light tube upper limit 8, detector lower limit 9 and detector upper limit 10 of the motion range, thereby avoiding damage to the mechanical structure and equipment failure, ensuring that during operation of the equipment, the various moving parts will not exceed the design range, protecting precision components and extending the life of the equipment.

[0025] In summary, the limit device for the vertical X-ray diffractometer, through the cooperation of the light tube arm 4, the detector arm 5, the goniometer 6, the light tube lower limit 7, the light tube upper limit 8, the detector lower limit 9, the detector upper limit 10 and the light tube detector anti-collision limit 11, solves the problem that the light tube arm and the detector arm rotate and move during the current measurement process, resulting in poor measurement accuracy and easy collision with each other.

Claims

1. A limiting device for a vertical X-ray diffractometer, comprising a frame (12), characterized in that: A goniometer (6) is fixedly mounted at the center of the front surface of the frame (12); a detector arm (5) is fixedly mounted on the front side of the goniometer (6); a detector (2) is mounted on the front surface of the detector arm (5); a light pipe arm (4) is arranged at the center of the front surface of the frame (12) and in front of the detector arm (5); an X-ray light pipe (1) is arranged on the top of the light pipe arm (4); a sample stage (3) is arranged on the front side of the light pipe arm (4); and the frame (1 2) is fixedly installed on the surface of an arc groove (13), a light tube upper limit stop (8) is arranged above the top of the inner cavity of the arc groove (13), a detector upper limit stop (10) is arranged below the top of the inner cavity of the arc groove (13), a light tube lower limit stop (7) is arranged on the left side of the inner cavity of the arc groove (13), a detector lower limit stop (9) is arranged on the right side of the inner cavity of the arc groove (13), and a light tube detector anti-collision stop stop (11) is fixedly installed at the upper right corner of the inner cavity of the arc groove (13).

2. The limiting device for a vertical X-ray diffractometer according to claim 1, characterized in that: The rotation axes of the optical tube arm (4) and the detector arm (5) are the same and are both located at the center of the arc groove (13).

3. The limiting device for a vertical X-ray diffractometer according to claim 1, characterized in that: The upper end of the detector arm (5) is a rectangular structure, and the lower end is a fan-shaped structure. The rear side of the detector arm (5) extends to the inner cavity of the arc-shaped groove (13) and is in sliding contact with the inner wall thereof.

4. The limiting device for a vertical X-ray diffractometer according to claim 1, characterized in that: The rear side of the sample stage (3) is rotatably connected to the front surface of the frame (12) via a rotating rod, and a dual-axis motor is fixedly installed on the rear side of the frame (12) and located on the rear side of the sample stage (3), and the output shaft of the dual-axis motor is fixedly connected to the rotating rod.

5. The limiting device for a vertical X-ray diffractometer according to claim 1, characterized in that: A first pulley is fixedly mounted on the surface of the dual-axis motor, a driving rod is fixedly connected to the top of the rear side of the detector arm (5), a second pulley is mounted on the surface of the driving rod, and the first pulley is connected to the pulley through a belt drive.

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