X-ray diffractometer light knife adjusting device
By designing a light knife adjustment device with a combination of annular turntable and planetary gears in an X-ray diffractometer, the problem of X-ray interference in low-angle X-ray diffraction measurement is solved, and fast occlusion and accurate detection are achieved.
Patent Information
- Application Number
- CN202510209312.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-06-20
AI Technical Summary
In low-angle X-ray diffraction measurement, part of the energy of the X-ray will be directly injected into the detector, covering the diffraction signal, resulting in the inability to obtain the measurable diffraction peak in the low-angle area, and the existing shield is inconvenient to adjust, affecting the detection speed.
An X-ray diffractometer light knife adjustment device is designed, using a combination of an annular turntable and planetary gears. The rotating rod and worm are controlled by a servo motor to quickly adjust the height and position of the light knife plate so as to block X-rays.
It realizes rapid occlusion of X-rays, reduces the interference of X-rays directly injecting into the detector during low-angle measurement, ensures that the detector can accurately receive diffraction peaks in the low-angle region, and improves the accuracy and speed of detection.
Smart Images
Figure CN120177529A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of X-ray diffraction detection equipment, and in particular to an X-ray diffractometer light knife adjusting device. Background Art
[0002] X-ray diffraction means that an X-ray beam irradiates a sample through a Soller slit and a divergence slit. The sample stage is located at the center of the goniometer. Based on the reflection geometry θs - θd, when the X-ray beam satisfies Bragg's law, a diffraction phenomenon occurs in a specific direction. After passing through an anti-scattering slit, a Soller slit, and a receiving slit, it reaches the X-ray detector, and finally, through a data processing system, the collected diffraction pattern is displayed on the analysis software. It can perform qualitative and quantitative analysis of the main phases, crystal structure analysis, material structure analysis, and crystallinity determination on samples in the form of powders, blocks, or thin films, with the characteristics of high precision, high accuracy, good stability, wide application range, simple operation, and intelligence, providing high-precision analysis for many fields such as material research, universities and research institutes, building materials, metals, minerals, plastic products, pharmaceuticals, and semiconductors.
[0003] Low-angle X-ray diffraction can provide diffraction information of materials in the low-angle region, which is crucial for analyzing the microstructure and properties of materials. The diffraction peaks observed in the low-angle region may be related to long-period structures, ordered arrangements of nanomaterials, or certain specific crystal defects. This information may be difficult to obtain in conventional-angle diffraction measurements. However, under the conditions of conventional working voltage and optical path system, the intensity of direct X-rays is too high. During low-angle measurements, part of the energy of the X-rays will directly enter the detector, which may cover the diffraction signal, resulting in an unmeasurable diffraction peak in the low-angle region.
[0004] To prevent part of the energy of the X-rays from directly entering the detector and interfering with the detection results at low angles, usually, workers will place a baffle above the sample for shielding. However, it is not convenient to adjust the shielding height by placing the baffle, which affects the detection speed. Summary of the Invention
[0005] In order to improve the convenience of the X-ray diffractometer light knife adjusting device during operation, this application provides an X-ray diffractometer light knife adjusting device.
[0006] This application provides an X-ray diffractometer light knife adjusting device, adopting the following technical solutions: An X-ray diffractometer light knife adjusting device, including a chassis, a detection device is installed on the chassis, a positioning device for positioning the detection sample is connected to the detection device, a light knife shielding component for shielding light is installed on the chassis, the light knife shielding component includes a mounting plate, the mounting plate is installed on the chassis, a circular turntable is rotatably installed on the mounting plate, a rotating rod is rotatably installed on the mounting plate, a fourth servo motor for controlling the rotation of the rotating rod is installed on the chassis, a first swing piece is installed on the rotating rod, a first fixing rod is installed on the first swing piece, a planetary gear is rotatably installed on the first fixing rod, teeth are provided on the inner ring of the circular turntable, the planetary gear is meshed and connected with the inner ring of the circular turntable, a second swing piece is connected to the planetary gear, and a light knife plate for shielding light is connected to the second swing piece.
[0007] By adopting the above technical solution, after placing the detection sample on the slide, the slide can be quickly positioned by the positioning device. After the positioning is completed, the detection sample is subjected to diffraction detection by the detection device. When it is necessary to shield the X-ray, the fourth servo motor is used to control the rotation of the rotating rod. The rotating rod drives the planetary gear to perform a circular motion within the circular turntable. The rotation and circular motion generated by the meshing of the planetary gear and the circular turntable can quickly change the height of the light knife plate and adjust the position of the light knife plate, so as to facilitate quickly shielding the ray. By shielding the ray with the light knife, it is avoided that the X-ray directly enters the detector during low-angle measurement, and the interference caused by the too high intensity of the X-ray is reduced, so that the detector can accurately receive the diffraction peak presented in the low-angle region, which is beneficial to improving the diffraction accuracy of the X-ray diffractometer light knife adjusting device during use.
[0008] In a specific feasible implementation, a support frame is installed on the mounting plate, a slide rail is connected to the support frame, a lifting block is slidably connected to the slide rail, a second fixing rod is installed on the second swing piece, the second fixing rod passes through the lifting block and is rotatably connected to the lifting block, a third connecting plate is installed on the lifting block, and the light knife plate is connected to the third connecting plate.
[0009] By adopting the above technical solution, a second fixing rod is installed on the second swing piece, and the second fixing rod is rotatably connected to the lifting block, so that the lifting block can smoothly slide within the slide rail, and at the same time, the rotation of the lifting block and the second swing piece is avoided, so that the light knife plate can only move in the vertical direction within the slide rail.
[0010] In a specific feasible implementation, a sliding piece is slidably connected to the support frame, and the slide rail is connected to the sliding piece.
[0011] By adopting the above technical solution, the slide rail is installed on the sliding piece, and the sliding piece is used to slidably install the slide rail on the support frame, so that the slide rail can slide on the support frame, thereby facilitating the position adjustment of the slide rail and the light knife plate in the horizontal direction.
[0012] In a specific feasible implementation, a support plate is installed on the mounting plate, a worm is rotatably installed on the support plate, a fifth servo motor for controlling the rotation of the worm is installed on the chassis, a turbine tooth is provided on the outer ring of the annular turntable, and the worm is meshed and connected with the annular turntable through the turbine tooth.
[0013] By adopting the above technical solution, when it is necessary to adjust the shielding effect of the light knife plate, the fifth servo motor controls the rotation of the worm, the worm drives the annular turntable to rotate, the annular turntable drives the planetary gear to rotate when rotating, the planetary gear drives the second swing piece to rotate when rotating, and the second swing piece drives the lifting block to move so as to pull the slide rail and the sliding piece to slide left and right on the support frame, so that the position of the light knife plate can be adjusted in a small range in the horizontal direction, and the shielding effect is changed by the position of the light knife plate close to or far from the light source, thereby facilitating the quick determination of the shielding position and being beneficial to improving the convenience of the X-ray diffractometer light knife adjusting device during use.
[0014] In a specific feasible implementation, a mounting box is installed on the chassis, the annular turntable and the mounting plate are both arranged in the mounting box, a sliding groove is provided on the mounting box, one end of the third connecting plate passes through the sliding groove and is arranged outside the mounting box, the third connecting plate is slidably connected with the mounting box through the sliding groove, and the light knife plate is arranged outside the mounting box.
[0015] By adopting the above technical solution, the mounting plate and the annular turntable are arranged in the mounting box, and the light knife plate and the connecting plate are arranged outside the mounting box, which can prevent the annular turntable from being exposed outside, prevent safety accidents caused by mechanical transmission, and enhance the safety of equipment use.
[0016] In a specific feasible implementation, the detection device includes a first rotating sleeve, the first rotating sleeve is rotatably installed on the chassis, a first connecting plate is connected to the first rotating sleeve, an X-ray generator is installed on the first connecting plate, a first gear is installed on the first rotating sleeve, and a first servo motor for controlling the rotation of the first gear is installed on the chassis; a second rotating sleeve is rotatably installed on the first rotating sleeve, a second connecting plate is installed on the second rotating sleeve, an X-ray detector is installed on the second connecting plate, a third gear is installed on the second rotating sleeve, and a second servo motor for controlling the rotation of the third gear is installed on the chassis.
[0017] By adopting the above technical solution, the first servo motor controls the rotation of the first gear to adjust the X-ray generator, thereby changing the X-ray injection path of the X-ray generator. The second servo motor controls the rotation of the third gear to adjust the X-ray detector, thereby changing the optical path receiving angle of the X-ray detector, and cooperating with the X-ray generator and the X-ray detector to obtain a clear and complete diffraction image, so as to facilitate the rapid measurement of the test sample.
[0018] In a specific feasible implementation, the positioning device includes a rotating cylinder, the rotating cylinder is rotatably installed on the second rotating sleeve, a carrier table is installed on the rotating cylinder, a card slot is opened on the carrier table, a fifth gear is installed on the rotating cylinder, and a third servo motor for controlling the rotation of the fifth gear is installed on the chassis.
[0019] By adopting the above technical solution, the slide for placing the sample is clamped into the card slot, so that the test sample can be quickly positioned. By driving the fifth gear to rotate through the third servo motor, the tilt angle of the slide can be quickly adjusted, improving the detection effect.
[0020] In a specific feasible implementation, an elastic card is installed on the carrier table, and the elastic card is arranged in the card slot.
[0021] By adopting the above technical solution, the slide for placing the test sample is clamped by the elastic card, which can improve the stability of the slide.
[0022] In a specific feasible implementation, one side of the light knife plate close to the X-ray generator is set as an inclined plane.
[0023] By adopting the above technical solution, an inclined plane is opened on the side close to the X-ray generator, which can disperse the X-rays and reduce the influence of the X-rays on the test sample and the X-ray generator.
[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. After placing the test sample on the slide, the positioning device can quickly position the slide. After the positioning is completed, the test sample is subjected to diffraction detection by the detection device. When it is necessary to block the X-rays, the fourth servo motor controls the rotation of the rotating rod, and the rotating rod drives the planetary gear to perform a circular motion in the annular turntable. The self-rotation and circular motion generated by the engagement of the planetary gear and the annular turntable can quickly change the height of the light knife plate and adjust the position of the light knife plate, so as to facilitate the quick blocking of the rays, which is beneficial to improving the convenience of the light knife adjustment device of the X-ray diffractometer during use.
[0025] 2. With the setting of the light knife shielding component, when it is necessary to adjust the shielding effect of the light knife plate, the fifth servo motor controls the worm to rotate. The worm drives the annular turntable to rotate. When the annular turntable rotates, it drives the planetary gear to rotate. When the planetary gear rotates, it drives the second swing piece to rotate. The second swing piece drives the lifting block to move, thereby pulling the slide rail and the sliding piece to slide left and right on the support frame, so that the position of the light knife plate can be adjusted within a small range in the horizontal direction. By using the position of the light knife plate close to or far from the light source to change the light shielding effect, it is convenient to quickly determine the light shielding position, which is beneficial to improving the convenience of the light knife adjustment device of the X-ray diffractometer during use. Description of the Drawings
[0026] Figure 1 It is a schematic diagram of the light knife adjustment device of the X-ray diffractometer according to the embodiment of the present application.
[0027] Figure 2 It is a schematic diagram of the detection device according to the embodiment of the present application.
[0028] Figure 3 It is a cross-sectional view of the detection device according to the embodiment of the present application.
[0029] Figure 4 It is a schematic diagram showing the installation position relationship between the fourth gear and the third gear in the detection device according to the embodiment of the present application.
[0030] Figure 5 It is a schematic diagram of the light knife shielding component according to the embodiment of the present application.
[0031] Figure 6 It is a schematic diagram showing the movement relationship between the planetary gear and the lifting block in the light knife shielding component according to the embodiment of the present application.
[0032] Reference signs: 1, chassis; 2, detection device; 21, first rotating sleeve; 211, first connecting plate; 212, X-ray generator; 213, first gear; 214, first servo motor; 215, second gear; 22, second rotating sleeve; 221, second connecting plate; 222, X-ray detector; 223, third gear; 224, second servo motor; 225, fourth gear; 3, positioning device; 31, rotating cylinder; 32, loading platform; 321, card slot; 33, elastic card; 34, fifth gear; 35, third servo motor; 36, sixth gear; 4, light knife shielding assembly; 41, mounting box; 411, chute; 42, mounting plate; 421, annular turntable; 422, rotating rod; 423, first swing piece; 424, first fixing rod; 425, planetary gear; 426, second swing piece; 427, second fixing rod; 428, fourth servo motor; 431, support frame; 432, sliding piece; 433, slide rail; 434, lifting block; 435, third connecting plate; 436, light knife plate; 441, support plate; 442, worm; 443, fifth servo motor. Detailed implementation manners
[0033] The following further elaborates on this application Figures 1-6 in conjunction with the accompanying drawings.
[0034] The embodiment of this application discloses a light knife adjustment device for an X-ray diffractometer. Referring to Figure 1 and Figure 2 , it includes a chassis 1, on which a detection device 2 for performing X-ray diffraction detection on a detection sample is installed. A positioning device 3 for positioning the detection sample is connected to the detection device 2, and a light knife shielding assembly 4 for shielding X-rays is installed on the chassis 1.
[0035] The detected sample is quickly positioned by the positioning device 3. After the sample is positioned and installed, the detection device 2 performs X-ray diffraction detection. When performing X-ray diffraction detection and it is necessary to shield the X-rays, the light knife shielding assembly 4 is used to shield the rays, facilitating the rapid detection of the sample and improving the convenience of the X-ray diffractometer during use.
[0036] Referring to Figure 2 , Figure 3 and Figure 4, the detection device 2 includes a first rotating sleeve 21 which is rotatably installed on the chassis 1. A first connecting plate 211 is fixedly connected to the first rotating sleeve 21, and an X-ray generator 212 is fixedly installed on the first connecting plate 211. A first gear 213 is fixedly connected to the first rotating sleeve 21, and the first gear 213 is coaxially arranged with the first rotating sleeve 21. A first servo motor 214 for controlling the rotation of the first gear 213 is fixedly installed on the chassis 1, and an output shaft of the first servo motor 214 is fixedly connected to a second gear 215, and the second gear 215 is meshed with the first gear 213. A second rotating sleeve 22 is rotatably installed on the first rotating sleeve 21, and a second connecting plate 221 is fixedly installed on the second rotating sleeve 22, and an X-ray detector 222 is fixedly installed on the second connecting plate 221. A third gear 223 is fixedly installed on the second rotating sleeve 22, and the third gear 223 is coaxially arranged with the second rotating sleeve 22. A second servo motor 224 for controlling the rotation of the third gear 223 is fixedly installed on the chassis 1, and an output shaft of the second servo motor 224 is fixedly connected to a fourth gear 225, and the fourth gear 225 is meshed with the third gear 223.
[0037] The positioning device 3 includes a rotating cylinder 31 which is rotatably installed on the second rotating sleeve 22. A loading platform 32 is fixedly installed on the rotating cylinder 31, a card slot 321 is formed on the loading platform 32, an elastic card 33 is fixedly installed on the loading platform 32, and the elastic card 33 is arranged in the card slot 321. A fifth gear 34 is fixedly installed on the rotating cylinder 31, a third servo motor 35 for controlling the rotation of the fifth gear 34 is fixedly installed on the chassis 1, and an output shaft of the third servo motor 35 is fixedly connected to a sixth gear 36, and the sixth gear 36 is meshed with the fifth gear 34.
[0038] Insert the slide with the test sample into the card slot 321 on the stage 32, and elastically clamp the slide through the elastic card 33 to enhance the stability of the slide. After the positioning of the test sample is completed, the first servo motor 214 controls the rotation of the second gear 215, the second gear 215 drives the first gear 213 to rotate, and the first gear 213 controls the rotation of the first rotating sleeve 21 to adjust the X-ray generator 212, changing the incident path of the X-rays of the X-ray generator 212. The second servo motor 224 controls the rotation of the fourth gear 225, the fourth gear 225 drives the third gear 223 to rotate, and the third gear 223 drives the second rotating sleeve 22 to rotate to adjust the X-ray detector 222, changing the optical path receiving angle of the X-ray detector 222. The third servo motor 35 controls the rotation of the sixth gear 36, the sixth gear 36 drives the fifth gear 34 to rotate, and the fifth gear 34 drives the rotating cylinder 31 to rotate to adjust the angle of the slide with the test sample placed on the stage 32, so that the slide with the test sample can cooperate with the X-ray generator 212 and the X-ray detector 222 to obtain a clear and complete diffraction image, facilitating the rapid completion of the measurement of the test sample.
[0039] Refer to Figure 2 、 Figure 4 and Figure 5 , the light knife shielding assembly 4 includes a mounting plate 42, the mounting plate 42 is fixedly installed on the chassis 1, the mounting plate 42 is arranged above the stage 32, a ring turntable 421 is rotatably installed on the mounting plate 42, a rotating rod 422 is rotatably installed on the mounting plate 42, a fourth servo motor 428 for controlling the rotation of the rotating rod 422 is fixedly installed on the chassis 1, a first swing piece 423 is fixedly installed on the rotating rod 422, a first fixing rod 424 is fixedly installed on the first swing piece 423, a planetary gear 425 is rotatably installed on the first fixing rod 424, teeth are provided on the inner ring of the ring turntable 421, and the planetary gear 425 is meshed with the inner ring of the ring turntable 421. A second swing piece 426 is fixedly installed on the planetary gear 425, and the second swing piece 426 is rotatably connected to the first fixing rod 424.
[0040] A support frame 431 is fixedly installed on the mounting plate 42. A sliding plate 432 is slidably installed on the support frame 431. A slide rail 433 is fixedly installed on the sliding plate 432. The slide rail 433 is vertically arranged. A lifting block 434 is slidably connected to the slide rail 433. A second fixed rod 427 is fixedly installed on the second swing piece 426. The second fixed rod 427 passes through the lifting block 434 and is rotatably connected to the lifting block 434. A third connecting plate 435 is fixedly connected to the lifting block 434. A light knife plate 436 is fixedly installed on the third connecting plate 435. The side of the light knife plate 436 close to the X-ray generator 212 is set as an inclined plane. An installation box 41 is fixedly installed on the chassis 1. The mounting plate 42 and the annular turntable 421 are both arranged inside the installation box 41. A chute 411 is opened on the installation box 41. One end of the third connecting plate 435 passes through the chute 411 and is arranged outside the installation box 41. The third connecting plate 435 is slidably connected to the installation box 41 through the chute 411. The light knife plate 436 is also arranged outside the installation box 41.
[0041] Refer to Figure 4 , Figure 5 and Figure 6 , a support plate 441 is fixedly installed on the mounting plate 42. A worm 442 is rotatably installed on the support plate 441. A turbine tooth is opened on the outer ring of the annular turntable 421. The worm 442 is meshed and connected to the annular turntable 421 through the turbine tooth. A fifth servo motor 443 for controlling the rotation of the worm 442 is fixedly installed on the chassis 1.
[0042] When the angle between the X-ray emitted by the X-ray generator 212 and the slide for placing the test sample is small, in order to reduce the direct irradiation of the ray emitted by the X-ray generator 212 on the X-ray detector 222, the fourth servo motor 428 controls the rotation of the rotating rod 422. The rotating rod 422 drives the first swing piece 423 to make a circular motion. When the first swing piece 423 makes a circular motion, it simultaneously drives the first fixed rod 424 to make a circular motion. The first fixed rod 424 drives the planetary gear 425 to roll on the inner ring of the annular turntable 421. As the state of the planetary gear 425 shown in Figure 6 , when the first swing piece 423 rotates clockwise, the first swing piece 423 will drive the planetary gear 425 to roll upward. Through the meshing action between the teeth, the planetary gear 425 will rotate counterclockwise. Therefore, the planetary gear 425 will drive the second swing piece 426 to swing to raise the lifting block 434 and the light knife plate 436. When the planetary gear 425 passes the highest point of the annular turntable 421, the planetary gear 425 will drive the light knife plate 436 to move downward, so as to facilitate the rapid adjustment of the position of the light knife plate 436 to block the X-ray and improve the diffraction detection effect.
[0043] When the light knife plate 436 moves below the slide rail 433, if the shielding effect of the light knife plate 436 still needs to be adjusted, the fifth servo motor 443 controls the worm 442 to rotate. The worm 442 drives the annular turntable 421 to rotate. Since the planetary gear 425 is rotatably mounted on the first fixed rod 424, the annular turntable 421 can drive the planetary gear 425 to rotate when it rotates. When the planetary gear 425 rotates, it drives the second swing piece 426 to rotate. The second swing piece 426 drives the lifting block 434 to move, thereby pulling the slide rail 433 and the sliding piece 432 to slide left and right on the support frame 431, so that the position of the light knife plate 436 can be adjusted within a small range in the horizontal direction. By changing the position of the light knife plate 436 close to or away from the X-ray generator 212, the shielding effect can be changed, so as to quickly determine the shielding position, which is beneficial to improving the convenience of the light knife adjustment device of the X-ray diffractometer during use. In the embodiment of the present application, when the annular turntable 421 drives the planetary gear 425 to rotate self, the planetary gear 425 can also be driven by the fourth servo motor 428 to roll within the annular turntable 421. At this time, it should be noted that the rotation speed of the annular turntable 421 driving the planetary gear 425 to rotate self should be the same as the rotation speed of the first swing piece 423 driving the planetary gear 425 to roll to generate self-rotation speed, so as to quickly adjust the height of the light knife plate 436 and the position away from the X-ray generator 212 within a small range.
[0044] The implementation principle of the embodiment of the present application is as follows: The detected sample is quickly positioned through the positioning device 3. After the sample is positioned and installed, the X-ray diffraction detection is carried out by the detection device 2. When the X-ray diffraction detection is carried out and the X-ray needs to be shielded, the annular turntable 421 and the planetary gear 425 in the light knife shielding assembly 4 are used to adjust the light knife plate 436, so that the position of the light knife plate 436 can be quickly adjusted to shield the ray, which is convenient for quickly detecting the sample and is beneficial to improving the convenience of the X-ray diffractometer during use.
[0045] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. An X-ray diffractometer optical knife adjustment device, characterized in that: The invention comprises a chassis (1), a detection device (2) being mounted on the chassis (1), a positioning device (3) for positioning a detection sample being connected to the detection device (2), a light knife shielding assembly (4) for shielding light being mounted on the chassis (1), the light knife shielding assembly (4) comprising a mounting plate (42), the mounting plate (42) being mounted on the chassis (1), a circular turntable (421) being rotatably mounted on the mounting plate (42), a rotating rod (422) being rotatably mounted on the mounting plate (42), and a control device (422) for controlling the rotating rod (422) being mounted on the chassis (1). A fourth servo motor (428) is rotatably mounted on the rotating rod (422), a first swing piece (423) is mounted on the first swing piece (423), a first fixed rod (424) is rotatably mounted on the first fixed rod (424), teeth are provided on the inner ring of the annular rotating disk (421), the planetary gear (425) is meshingly connected with the inner ring of the annular rotating disk (421), a second swing piece (426) is connected to the planetary gear (425), and a light knife plate (436) for shielding light is connected to the second swing piece (426).
2. The X-ray diffractometer optical knife adjustment device according to claim 1, characterized in that: A support frame (431) is installed on the mounting plate (42), a slide rail (433) is connected to the support frame (431), a lifting block (434) is slidably connected to the slide rail (433), a second fixing rod (427) is installed on the second swing plate (426), the second fixing rod (427) passes through the lifting block (434) and is rotatably connected to the lifting block (434), a third connecting plate (435) is installed on the lifting block (434), and the third connecting plate (435) is connected to the optical knife plate (436).
3. The X-ray diffractometer optical knife adjustment device according to claim 2, characterized in that: A sliding sheet (432) is slidably connected to the support frame (431), and the sliding sheet (432) is connected to the sliding rail (433).
4. The X-ray diffractometer optical knife adjustment device according to claim 3, characterized in that: A support plate (441) is mounted on the mounting plate (42), a worm (442) is rotatably mounted on the support plate (441), a fifth servo motor (443) for controlling the rotation of the worm (442) is mounted on the chassis (1), turbine teeth are provided on the outer ring of the annular turntable (421), and the worm (442) is meshedly connected with the annular turntable (421) via the turbine teeth.
5. The X-ray diffractometer optical knife adjustment device according to claim 3, characterized in that: The chassis (1) is provided with an installation box (41), the annular turntable (421) and the installation plate (42) are both arranged in the installation box (41), a slide groove (411) is provided on the installation box (41), one end of the third connecting plate (435) passes through the slide groove (411) and is arranged on the outside of the installation box (41), the third connecting plate (435) is slidably connected to the installation box (41) through the slide groove (411), and the optical knife plate (436) is arranged on the outside of the installation box (41).
6. The X-ray diffractometer optical knife adjustment device according to claim 1, characterized in that: The detection device (2) comprises a first rotating sleeve (21), the first rotating sleeve (21) being rotatably mounted on the chassis (1), the first rotating sleeve (21) being connected to a first connecting plate (211), an X-ray generator (212) being mounted on the first connecting plate (211), a first gear (213) being mounted on the first rotating sleeve (21), and a first servo motor (214) for controlling the rotation of the first gear (213) being mounted on the chassis (1); a second rotating sleeve (22) being rotatably mounted on the first rotating sleeve (21), a second connecting plate (221) being mounted on the second rotating sleeve (22), an X-ray detector (222) being mounted on the second connecting plate (221), a third gear (223) being mounted on the second rotating sleeve (22), and a second servo motor (224) for controlling the rotation of the third gear (223) being mounted on the chassis (1).
7. The X-ray diffractometer optical knife adjustment device according to claim 6, characterized in that: The positioning device (3) comprises a rotating drum (31), the rotating drum (31) being rotatably mounted on the second rotating sleeve (22), a loading platform (32) being mounted on the rotating drum (31), a slot (321) being provided on the loading platform (32), a fifth gear (34) being mounted on the rotating drum (31), and a third servo motor (35) for controlling the rotation of the fifth gear (34) being mounted on the chassis (1).
8. The X-ray diffractometer optical knife adjustment device according to claim 7, characterized in that: An elastic card (33) is mounted on the object carrier (32), and the elastic card (33) is arranged in the card slot (321).
9. The X-ray diffractometer optical knife adjustment device according to claim 7, characterized in that: A side of the optical knife plate (436) close to the X-ray generator (212) is configured as a beveled surface.