Positioning adjusting device for neutron diffraction experiment

Abstract

The invention discloses a positioning adjusting device for a neutron diffraction experiment, and belongs to the technical field of neutron diffraction experiments. The positioning adjusting device for the neutron diffraction experiment comprises a cantilever supporting frame, a rotary driving mechanism, a linear driving mechanism and a connecting frame, wherein one end of the cantilever supporting frame is connected to a rack of neutron diffraction experiment equipment; the rotary driving mechanism is arranged at the other end of the cantilever supporting frame; the linear driving mechanism is connected to the output end of the rotary driving mechanism, and the rotary driving mechanism is used for driving the linear driving mechanism to rotate in an XY plane; the lower portion of the connecting frame is used for installing a fine collimator, the top of the connecting frame is connected with the output end of the linear driving mechanism, and the linear driving mechanism can drive the connecting frame to linearly move in the X direction and / or the Y direction. The positioning adjusting device for the neutron diffraction experiment is relatively high in space utilization rate and relatively high in universality.

Description

Technical Field

[0001] The invention relates to the technical field of neutron diffraction experiments, and in particular to a positioning and adjusting device for neutron diffraction experiments. Background Art

[0002] Compared with X-rays, neutrons have the advantages of strong penetrating power, sensitivity to light elements, isotope identification, spin and magnetic moment, etc., and are non-destructive to samples, making neutron scattering technology widely used in the research of energy materials, magnetic materials and engineering materials. Neutrons are incident on sample materials, interact with the atomic nuclei or magnetic moments in the materials, and scatter in all directions. By measuring the changes in the energy and momentum of scattered neutrons, the microscopic structure information and motion laws of the material can be obtained.

[0003] During the neutron diffraction experiment, it is necessary to use a positioning and adjustment device to accurately position the volume beam direction of the fine collimator. The positioning and adjustment device in the related art, for example, has an application number of CN202311288881.7, and the application name is a precise positioning and adjustment device for measuring the volume beam direction in a neutron diffraction experiment, including a switching platform, a linear drive mechanism, and a rotary drive mechanism, wherein the switching platform is used to carry the collimator, the linear drive mechanism and the rotary drive mechanism are both located below the switching platform, the linear drive mechanism is used to drive the switching platform to move along the first horizontal direction and / or the second horizontal direction, and the rotary drive mechanism is used to drive the switching platform to rotate in a horizontal plane. However, since the linear drive mechanism and the rotary drive mechanism are both located below the switching platform and are relatively large in size, the space below the entire positioning and adjustment device is crowded, and it cannot be used to conduct experiments on samples with larger volumes, making the space utilization of the positioning and adjustment device unreasonable and having low versatility.

[0004] Therefore, there is an urgent need for a positioning and adjusting device for neutron diffraction experiments to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve or at least alleviate part or all of the above problems. To this end, the purpose of the present invention is to provide a positioning and adjusting device for neutron diffraction experiments, which can improve space utilization and can be used to conduct experiments on samples with larger volumes, and has strong versatility.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A positioning and adjusting device for neutron diffraction experiment, comprising:

[0008] A cantilever support frame, one end of which is connected to a frame of a neutron diffraction experimental device;

[0009] A rotation drive mechanism is arranged at the other end of the cantilever support frame;

[0010] A linear drive mechanism, connected to the output end of the rotary drive mechanism, wherein the rotary drive mechanism can drive the linear drive mechanism to rotate in the XY plane;

[0011] A connecting frame, the lower part of which is used to install a fine collimator, the top of which is connected to the output end of the linear drive mechanism, and the linear drive mechanism can drive the connecting frame to move linearly along the X direction and / or the Y direction;

[0012] The X direction and the Y direction are perpendicular to each other.

[0013] As a preferred solution of the positioning and adjusting device for neutron diffraction experiment provided by the present invention, the cantilever support frame comprises:

[0014] A Z-shaped frame including a first end and a second end that are opposite;

[0015] a first connecting plate, wherein the first end is rotatably connected to the linear drive mechanism via the first connecting plate, and the rotary drive mechanism is disposed on the first connecting plate;

[0016] A second connecting plate, wherein the second end is connected to the frame through the second connecting plate.

[0017] As a preferred solution of the positioning and adjusting device for neutron diffraction experiment provided by the present invention, a plurality of weight-reducing structures are arranged on the Z-shaped frame.

[0018] As a preferred solution of the positioning and adjusting device for neutron diffraction experiments provided by the present invention, one of the cantilever support frame and the linear drive mechanism is provided with an arc-shaped guide hole, and the other is provided with a guide member, and the guide member is slidably inserted into the arc-shaped guide hole.

[0019] As a preferred solution of the positioning and adjusting device for neutron diffraction experiment provided by the present invention, the number of the arc-shaped guide holes is at least two, and at least two of the arc-shaped guide holes are arranged around the rotation drive mechanism.

[0020] As a preferred solution of the positioning and adjusting device for neutron diffraction experiment provided by the present invention, the linear driving mechanism comprises:

[0021] A mounting plate connected to the output end of the rotary drive mechanism;

[0022] A Y-axis driving assembly is arranged on the mounting plate;

[0023] A Y-direction moving platform, wherein the output end of the Y-direction driving component is connected to the Y-direction moving platform to drive the Y-direction moving platform to move along the Y direction;

[0024] An X-axis driving assembly is disposed on the Y-axis moving platform;

[0025] An X-direction moving platform, wherein the output end of the X-direction driving assembly is connected to the X-direction moving platform to drive the X-direction moving platform to move along the X direction, and the X-direction moving platform is connected to the top of the connecting frame.

[0026] As a preferred solution of the positioning and adjusting device for neutron diffraction experiment provided by the present invention, the X-axis driving assembly includes an X-axis rotating motor, an X-axis lead screw and an X-axis nut, the X-axis rotating motor is arranged on the Y-axis moving platform, the output end of the X-axis rotating motor is connected to the X-axis lead screw to drive the X-axis lead screw to rotate, the X-axis nut is screwed on the X-axis lead screw and connected to the X-axis moving platform; and / or

[0027] The Y-axis driving assembly includes a Y-axis rotating motor, a Y-axis lead screw and a Y-axis nut. The Y-axis rotating motor is arranged on the mounting plate. The output end of the Y-axis rotating motor is connected to the Y-axis lead screw to drive the Y-axis lead screw to rotate. The Y-axis nut is screwed on the Y-axis lead screw and connected to the Y-axis moving platform.

[0028] As a preferred solution of the positioning and adjusting device for neutron diffraction experiment provided by the present invention, the linear drive mechanism further includes an X-guide assembly, the X-guide assembly includes an X-direction slide rail and an X-direction slider that slidably cooperate with each other, the X-direction slide rail extends along the X-direction and is arranged on one of the Y-direction moving platform and the X-direction moving platform, and the X-direction slider is arranged on the other of the Y-direction moving platform and the X-direction moving platform; and / or

[0029] The linear drive mechanism also includes a Y-guide assembly, which includes a Y-direction slide rail and a Y-direction slider that slide together. The Y-direction slide rail extends along the Y direction and is arranged on one of the Y-direction moving platform and the mounting plate, and the Y-direction slider is arranged on the other of the Y-direction moving platform and the mounting plate.

[0030] As a preferred solution of the positioning and adjustment device for neutron diffraction experiments provided by the present invention, the connecting frame includes a horizontal plate and two vertical plates, the horizontal plate is connected to the output end of the linear drive mechanism; the two vertical plates are respectively vertically connected to the two ends of the horizontal plate, and the two vertical plates are respectively used to fix the two sides of the fine collimator.

[0031] As a preferred solution of the positioning and adjusting device for neutron diffraction experiment provided by the present invention, the distance between the two vertical plates is adjustable to adapt to the fine collimators of different widths.

[0032] The beneficial effects of the present invention are:

[0033] The positioning and adjusting device for neutron diffraction experiments provided by the present invention can drive the connecting frame to move linearly along the X direction and / or the Y direction by setting a linear driving mechanism, thereby realizing the position adjustment of the fine collimator in the XY plane (horizontal plane); by setting a rotating driving mechanism, the linear driving mechanism can be driven and the connecting frame can be driven to rotate in the XY plane, thereby realizing the adjustment of the installation angle of the fine collimator in the XY plane, and then aligning the two fine collimators during the experiment to ensure the accuracy of the experimental results. In addition, by setting a cantilever support frame, the rotating driving mechanism and the linear driving mechanism can be set above the connecting frame, thereby saving the installation space below the connecting frame for installing other mechanisms and larger samples, thereby improving the versatility and space utilization of the entire positioning and adjusting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0035] Figure 1 It is a structural schematic diagram of a positioning adjustment device and a fine collimator for a neutron diffraction experiment provided by an embodiment of the present invention;

[0036] Figure 2 It is a structural schematic diagram of a positioning and adjusting device for neutron diffraction experiment provided by an embodiment of the present invention;

[0037] Figure 3 It is a schematic diagram of the partial structure of the positioning and adjusting device for neutron diffraction experiment provided by an embodiment of the present invention at a viewing angle;

[0038] Figure 4 is a schematic structural diagram of a linear drive mechanism provided by an embodiment of the present invention without hiding the X-axis moving platform;

[0039] Figure 5 is a schematic diagram of the partial structure of the positioning and adjusting device for neutron diffraction experiment provided by an embodiment of the present invention at another viewing angle;

[0040] Figure 6 is a schematic cross-sectional structural diagram of a linear drive mechanism provided by an embodiment of the present invention;

[0041] Figure 7 yes Figure 6 A partial enlarged view of point A.

[0042] Reference numerals:

[0043] 1000, fine collimator;

[0044] 100, cantilever support frame; 110, Z-shaped frame; 111, first end; 112, second end; 120, first connecting plate; 121, arc-shaped guide hole; 130, second connecting plate;

[0045] 200, rotary drive mechanism;

[0046] 300, linear drive mechanism; 310, mounting plate; 320, Y-direction moving platform; 330, X-direction moving platform; 340, X-direction driving assembly; 341, X-direction rotating motor; 342, X-direction lead screw; 343, X-direction nut; 350, Y-direction driving assembly; 351, Y-direction rotating motor; 352, Y-direction lead screw; 353, Y-direction nut; 360, X-direction guide assembly; 361, X-direction slide rail; 362, X-direction slider; 370, Y-direction guide assembly; 371, Y-direction slide rail; 372, Y-direction slider;

[0047] 400, connecting frame; 410, horizontal plate; 411, strip hole; 420, vertical plate; 430, adjusting member. DETAILED DESCRIPTION

[0048] Before any embodiments of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings.

[0049] In the present invention, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0050] In the present invention, the term "and / or" is a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in the present invention generally indicates that the associated objects before and after are in an "and / or" relationship.

[0051] In the present invention, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and may include electrical connection or coupling.

[0052] In the present invention, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerance caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0053] In the present invention, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0054] In the present invention, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that the directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0055] Figure 1 The schematic diagram of the structure of the positioning adjustment device and the fine collimator 1000 for neutron diffraction experiment provided in this embodiment is shown. Figure 2A schematic structural diagram of a positioning and adjusting device for neutron diffraction experiments provided in this embodiment is shown. Figure 3 FIG. 1 shows a schematic diagram of the local structure of the positioning and adjusting device for neutron diffraction experiment provided in this embodiment at a viewing angle. Figure 1-Figure 3 As shown, this embodiment provides a positioning and adjustment device for a neutron diffraction experiment, which includes a cantilever support frame 100, a rotation drive mechanism 200, a linear drive mechanism 300 and a connecting frame 400. One end of the cantilever support frame 100 is connected to the frame of the neutron diffraction experimental equipment; the rotation drive mechanism 200 is arranged at the other end of the cantilever support frame 100; the linear drive mechanism 300 is connected to the output end of the rotation drive mechanism 200, and the rotation drive mechanism 200 is used to drive the linear drive mechanism 300 to rotate in the XY plane; the lower part of the connecting frame 400 is used to install a fine collimator 1000, and the top of the connecting frame 400 is connected to the output end of the linear drive mechanism 300, and the linear drive mechanism 300 can drive the connecting frame 400 to move linearly along the X direction and / or the Y direction.

[0056] It should be noted that the X direction and the Y direction are two directions perpendicular to each other in a horizontal plane, and this embodiment does not limit the specific directions of the X direction and the Y direction.

[0057] Specifically, when conducting a neutron diffraction experiment, the positioning and adjusting device for neutron diffraction experiment is used in pairs, and the fine collimators 1000 installed on the connecting frames 400 of the two positioning and adjusting devices for neutron diffraction experiment need to be aligned to ensure the accuracy of the experimental results. When in use, firstly, the two fine collimators 1000 are respectively installed on the corresponding connecting frames 400, and the corresponding connecting frames 400 are driven by the linear drive mechanism 300 to move linearly along the X direction and / or the Y direction, so as to achieve the position adjustment of the fine collimator 1000 in the XY plane (horizontal plane), and the linear drive mechanism 300 is driven by the rotation drive mechanism 200 to drive the connecting frame 400 to rotate in the XY plane, so as to achieve the adjustment of the installation angle of the fine collimator 1000 in the XY plane, and then the alignment of the two fine collimators 1000 can be ensured to ensure the accuracy of the experimental results. In addition, by setting up a cantilever support frame 100, the rotary drive mechanism 200 and the linear drive mechanism 300 can be set above the connecting frame 400, thereby saving the installation space below the connecting frame 400 for installing other mechanisms and larger samples, thereby improving the versatility and space utilization of the entire positioning and adjustment device.

[0058] Furthermore, the linear drive mechanism 300 includes a mounting plate 310, a Y-axis moving platform 320, an X-axis moving platform 330, an X-axis driving assembly 340 and a Y-axis driving assembly 350. The mounting plate 310 is connected to the output end of the rotation driving mechanism 200. The Y-axis driving assembly 350 is arranged on the mounting plate 310, and the output end of the Y-axis driving assembly 350 is connected to the Y-axis moving platform 320 to drive the Y-axis moving platform 320 to move along the Y direction; the X-axis driving assembly 340 is arranged on the Y-axis moving platform 320, and the output end of the X-axis driving assembly 340 is connected to the X-axis moving platform 330 to drive the X-axis moving platform 330 to move along the X direction, and the X-axis moving platform 330 is connected to the top of the connecting frame 400. When the position of the fine collimator 1000 in the XY plane needs to be adjusted, the X-axis driving assembly 340 and / or the Y-axis driving assembly 350 may be started to adjust the X coordinate and / or Y coordinate of the connecting frame 400 .

[0059] Figure 4 FIG. 3 shows a schematic diagram of the structure of the linear drive mechanism 300 provided in this embodiment without the X-axis moving platform 330. Figure 4 Combined with Figure 3 As shown, the X-direction driving assembly 340 includes an X-direction rotating motor 341, an X-direction lead screw 342 and an X-direction nut 343. The X-direction rotating motor 341 is disposed on the Y-direction moving platform 320. The output end of the X-direction rotating motor 341 is connected to the X-direction lead screw 342 to drive the X-direction lead screw 342 to rotate. The X-direction nut 343 is screwed on the X-direction lead screw 342 and connected to the X-direction moving platform 330. When the X-direction rotating motor 341 is working, it can drive the X-direction lead screw 342 to rotate, so as to drive the X-direction nut 343 screwed thereon to move linearly along the axis direction of the X-direction lead screw 342 (i.e., the X-direction), thereby driving the X-direction moving platform 330 to move relative to the Y-direction moving platform 320 along the X-direction.

[0060] Figure 5 FIG. 2 shows a schematic diagram of the local structure of the positioning and adjusting device for neutron diffraction experiment provided in this embodiment at another viewing angle. Figure 5As shown, in order to ensure the stability of the X-direction moving platform 330 and the Y-direction moving platform 320 when they move relative to each other, in this embodiment, the linear drive mechanism 300 also includes an X-direction guide assembly 360, and the X-direction guide assembly 360 includes an X-direction slide rail 361 and an X-direction slider 362 that slide with each other, the X-direction slide rail 361 extends along the X direction and is arranged on the X-direction moving platform 330, and the X-direction slider 362 is arranged on the Y-direction moving platform 320. By setting the X-direction guide assembly 360, it is possible to provide guidance for the movement of the X-direction moving platform 330 relative to the Y-direction moving platform 320 along the X direction, and ensure the smoothness of its sliding process. Of course, in other embodiments, the X-direction slide rail 361 can also be arranged on the Y-direction moving platform 320, and the X-direction slider 362 can be arranged on the X-direction moving platform 330, and the above-mentioned effect can also be achieved.

[0061] Figure 6 FIG. 2 shows a cross-sectional structural diagram of the linear drive mechanism 300 provided in this embodiment. Figure 6 Combined with Figure 5 As shown, the Y-direction driving assembly 350 includes a Y-direction rotating motor 351, a Y-direction lead screw 352 and a Y-direction nut 353. The Y-direction rotating motor 351 is disposed on the mounting plate 310. The output end of the Y-direction rotating motor 351 is connected to the Y-direction lead screw 352 to drive the Y-direction lead screw 352 to rotate. The Y-direction nut 353 is screwed on the Y-direction lead screw 352 and connected to the Y-direction moving platform 320. When the Y-direction rotating motor 351 is working, it can drive the Y-direction lead screw 352 to rotate, so as to drive the Y-direction nut 353 screwed thereon to move linearly along the axis direction of the Y-direction lead screw 352 (i.e., the Y direction), thereby driving the Y-direction moving platform 320 to move relative to the mounting plate 310 along the Y direction.

[0062] In order to ensure the stability of the Y-direction moving platform 320 when it moves relative to the mounting plate 310, in this embodiment, the linear drive mechanism 300 also includes a Y-direction guide assembly 370, and the Y-direction guide assembly 370 includes a Y-direction slide rail 371 and a Y-direction slider 372 that slide with each other, the Y-direction slide rail 371 extends along the Y direction and is arranged on the mounting plate 310, and the Y-direction slider 372 is arranged on the Y-direction moving platform 320. By setting the Y-direction guide assembly 370, it is possible to provide guidance for the movement of the Y-direction moving platform 320 relative to the mounting plate 310 along the Y direction, and ensure the smoothness of its sliding process. Of course, in other embodiments, the Y-direction slide rail 371 can also be arranged on the Y-direction moving platform 320, and the Y-direction slider 372 can be arranged on the mounting plate 310, and the above-mentioned effect can also be achieved.

[0063] like Figure 2 and Figure 3As shown, the cantilever support frame 100 includes a Z-shaped frame 110, a first connecting plate 120 and a second connecting plate 130, and the Z-shaped frame 110 includes a first end 111 and a second end 112 opposite to each other; the first end 111 is rotatably connected to the linear drive mechanism 300 (specifically, the mounting plate 310) through the first connecting plate 120; the second end 112 is connected to the frame of the neutron diffraction experimental equipment through the second connecting plate 130. This arrangement facilitates the processing of the cantilever support frame 100, and can improve the stability of the connection between the cantilever support frame 100 and the frame of the neutron diffraction experimental equipment and between the cantilever support frame 100 and the mounting plate 310; in addition, the Z-shaped frame 110 has good structural stability, high safety, and is not prone to breakage at a large turning angle. Among them, the fixed end of the rotary drive mechanism 200 is arranged on the first connecting plate 120, and the output end of the rotary drive mechanism 200 is connected to the mounting plate 310 through the first connecting plate 120.

[0064] Optionally, the Z-shaped frame 110 is also provided with a plurality of weight-reducing structures to reduce the weight of the entire cantilever support frame 100 while ensuring the structural stability of the cantilever support frame 100, so as to facilitate installation by operators and reduce materials and processing costs to a certain extent.

[0065] In order to ensure the stability of the cantilever support frame 100 and the linear drive mechanism 300 during relative rotation, an arc-shaped guide hole 121 is provided on the cantilever support frame 100, and a guide member is provided on the linear drive mechanism 300, and the guide member is slidably penetrated in the arc-shaped guide hole 121. When the rotary drive mechanism 200 drives the linear drive mechanism 300 to rotate relative to the cantilever support frame 100, the guide member can slide along the track of the arc-shaped guide hole 121 to provide guidance for the relative rotation between the linear drive mechanism 300 and the cantilever support frame 100, and ensure the stability of the relative rotation process between the two. In this embodiment, the arc-shaped guide hole 121 is provided on the first connecting plate 120, and the guide member is provided on the mounting plate 310. Among them, the guide member can be a guide pin. Of course, in other embodiments, the arc-shaped guide hole 121 can also be provided on the mounting plate 310, and the guide member can be provided on the first connecting plate 120, and the above-mentioned effect can also be achieved.

[0066] Optionally, the number of arc-shaped guide holes 121 is at least two, and at least two arc-shaped guide holes 121 are arranged around the rotation drive mechanism 200 to further ensure that the linear drive mechanism 300 and the cantilever support frame 100 can stably rotate relative to each other. In the present embodiment, the number of arc-shaped guide holes 121 is four, and the four arc-shaped guide holes 121 are distributed on a circumference centered on the axis of the rotation drive mechanism 200. Of course, in other embodiments, the number of arc-shaped guide holes 121 can also be two, three, five, six, or even more, and the present embodiment does not limit this. In addition, the present embodiment does not limit the arc length of a single arc-shaped guide hole 121, and the operator can adjust the arc length of a single arc-shaped guide hole 121 according to the angle that the connecting frame 400 needs to be adjusted in the actual experiment.

[0067] In this embodiment, the rotation drive mechanism 200 is a drive motor, which has high energy efficiency, simple structure, easy installation and maintenance, and convenient operation. Of course, in other embodiments, the rotation drive mechanism 200 can also use other devices with rotation drive function, which is not limited in this embodiment.

[0068] Figure 7 Shows Figure 6 A partial enlarged view at point A. Figure 7 Combined with Figure 1 As shown, the connecting frame 400 includes a horizontal plate 410 and two vertical plates 420. The horizontal plate 410 is connected to the output end of the linear drive mechanism 300 (specifically, the X-axis moving platform 330); the two vertical plates 420 are respectively vertically connected to the two ends of the horizontal plate 410, and the two vertical plates 420 are respectively used to fix the two sides of the fine collimator 1000. With this arrangement, when installing the fine collimator 1000, the operator can fix it from the side of the fine collimator 1000, simplifying the operation process and improving the convenience of installation. In this embodiment, the fine collimator 1000 is connected to the vertical plate 420 by bolts, which is easy to operate and has a stable connection.

[0069] Optionally, the spacing between the two vertical plates 420 is adjustable, so that the connecting frame 400 can adjust the spacing between the two vertical plates 420 according to the size of the fine collimators 1000 of different specifications to adapt to the fine collimators 1000 of different widths, thereby improving the versatility of the entire positioning and adjustment device. Specifically, both ends of the horizontal plate 410 are provided with strip holes 411 extending along the Y direction, and each vertical plate 420 is provided with a fixing hole corresponding to the strip hole 411 on the corresponding side, and the adjustment member 430 can pass through the strip hole 411 and be fixed in the fixing hole to achieve a fixed connection between the corresponding vertical plate 420 and the horizontal plate 410. When it is necessary to adjust the spacing between the two vertical plates 420, the adjustment member 430 can be loosened first, and then the vertical plate 420 can be pushed along the extension direction of the strip hole 411. After adjusting the two vertical plates 420 to a suitable position, the adjustment member 430 can be tightened, which is easy to operate and has a tight connection. The adjusting member 430 is an adjusting bolt, and the fixing hole is a threaded hole.

[0070] Optionally, each vertical plate 420 is provided with a plurality of fixing holes, which are arranged at intervals along the X direction, and each fixing hole corresponds to a strip hole 411 to ensure a stable connection between the vertical plate 420 and the horizontal plate 410 .

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present invention.

Claims

1. A positioning and adjusting device for neutron diffraction experiment, characterized in that: include: A cantilever support frame (100), one end of the cantilever support frame (100) being connected to a frame of a neutron diffraction experimental device; A rotation drive mechanism (200) is arranged at the other end of the cantilever support frame (100); A linear drive mechanism (300) connected to an output end of the rotary drive mechanism (200), wherein the rotary drive mechanism (200) can drive the linear drive mechanism (300) to rotate within an XY plane; A connecting frame (400), the lower part of which is used to install a fine collimator (1000), the top of which is connected to the output end of the linear drive mechanism (300), and the linear drive mechanism (300) can drive the connecting frame (400) to move linearly along the X direction and / or the Y direction; The X direction and the Y direction are perpendicular to each other.

2. The positioning and adjusting device for neutron diffraction experiment according to claim 1, characterized in that: The cantilever support frame (100) comprises: A Z-shaped frame (110) comprising a first end (111) and a second end (112) opposite to each other; a first connecting plate (120), wherein the first end (111) is rotatably connected to the linear drive mechanism (300) via the first connecting plate (120), and the rotary drive mechanism (200) is arranged on the first connecting plate (120); A second connecting plate (130), wherein the second end (112) is connected to the frame via the second connecting plate (130).

3. The positioning and adjusting device for neutron diffraction experiment according to claim 2, characterized in that: The Z-shaped frame (110) is provided with a plurality of weight-reducing structures.

4. The positioning and adjusting device for neutron diffraction experiment according to claim 1, characterized in that: One of the cantilever support frame (100) and the linear drive mechanism (300) is provided with an arc-shaped guide hole (121), and the other is provided with a guide member, and the guide member is slidably inserted into the arc-shaped guide hole (121).

5. The positioning and adjusting device for neutron diffraction experiment according to claim 4, characterized in that: The number of the arc-shaped guide holes (121) is at least two, and at least two of the arc-shaped guide holes (121) are arranged around the rotation drive mechanism (200).

6. The positioning and adjusting device for neutron diffraction experiment according to claim 1, characterized in that: The linear drive mechanism (300) comprises: A mounting plate (310) connected to an output end of the rotary drive mechanism (200); A Y-axis driving assembly (350) is disposed on the mounting plate (310); A Y-direction moving platform (320), wherein an output end of the Y-direction driving component (350) is connected to the Y-direction moving platform (320) to drive the Y-direction moving platform (320) to move along the Y direction; An X-direction driving component (340) is disposed on the Y-direction moving platform (320); An X-direction moving platform (330), wherein the output end of the X-direction driving component (340) is connected to the X-direction moving platform (330) to drive the X-direction moving platform (330) to move along the X direction, and the X-direction moving platform (330) is connected to the top of the connecting frame (400).

7. The positioning and adjusting device for neutron diffraction experiment according to claim 6, characterized in that: The X-direction driving assembly (340) comprises an X-direction rotating motor (341), an X-direction lead screw (342) and an X-direction nut (343); the X-direction rotating motor (341) is arranged on the Y-direction moving platform (320); an output end of the X-direction rotating motor (341) is connected to the X-direction lead screw (342) to drive the X-direction lead screw (342) to rotate; the X-direction nut (343) is screwed on the X-direction lead screw (342) and connected to the X-direction moving platform (330); and / or The Y-axis driving assembly (350) comprises a Y-axis rotating motor (351), a Y-axis lead screw (352) and a Y-axis nut (353); the Y-axis rotating motor (351) is arranged on the mounting plate (310); the output end of the Y-axis rotating motor (351) is connected to the Y-axis lead screw (352) to drive the Y-axis lead screw (352) to rotate; the Y-axis nut (353) is screwed on the Y-axis lead screw (352) and connected to the Y-axis moving platform (320).

8. The positioning and adjusting device for neutron diffraction experiment according to claim 6, characterized in that: The linear drive mechanism (300) further comprises an X-guide assembly (360), wherein the X-guide assembly (360) comprises an X-direction slide rail (361) and an X-direction slider (362) which are slidably matched with each other, wherein the X-direction slide rail (361) extends along the X-direction and is arranged on one of the Y-direction moving platform (320) and the X-direction moving platform (330), and the X-direction slider (362) is arranged on the other of the Y-direction moving platform (320) and the X-direction moving platform (330); and / or The linear drive mechanism (300) also includes a Y-guide assembly (370), and the Y-guide assembly (370) includes a Y-direction slide rail (371) and a Y-direction slider (372) that slidably cooperate with each other. The Y-direction slide rail (371) extends along the Y direction and is arranged on one of the Y-direction movable platform (320) and the mounting plate (310), and the Y-direction slider (372) is arranged on the other of the Y-direction movable platform (320) and the mounting plate (310).

9. The positioning and adjusting device for neutron diffraction experiment according to any one of claims 1 to 8, characterized in that: The connecting frame (400) comprises a horizontal plate (410) and two vertical plates (420), wherein the horizontal plate (410) is connected to the output end of the linear drive mechanism (300); the two vertical plates (420) are respectively vertically connected to the two ends of the horizontal plate (410), and the two vertical plates (420) are respectively used to fix the two sides of the fine collimator (1000).

10. The positioning and adjusting device for neutron diffraction experiment according to claim 9, characterized in that: The distance between the two vertical plates (420) is adjustable to adapt to the fine collimators (1000) of different widths.

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