Positioning adjusting device for neutron diffraction experiment

Abstract

The utility model 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 utility model relates to the technical field of neutron diffraction experiment, specifically relates to a positioning adjusting device for neutron diffraction experiment. BACKGROUND

[0002] Compared with X-rays, neutrons have strong penetration ability, sensitivity to light elements, can identify isotopes, have spin and magnetic moment, and are non-destructive to samples, so that neutron scattering technology is widely used in the research of energy materials, magnetic materials and engineering materials. When neutrons are incident on sample materials, they interact with atomic nuclei or magnetic moments in the materials and scatter in all directions. By measuring the changes in energy and momentum of the scattered neutrons, the microscopic structure information and motion law of the material can be obtained.

[0003] In the process of neutron diffraction experiment, a positioning adjusting device is needed to accurately position the volume beam direction of the fine collimator. The positioning adjusting device in the related art, for example, application No. CN202311288881.7, application name: neutron diffraction experiment measurement volume beam direction accurate positioning adjusting device, includes 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 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 the horizontal plane. However, since the linear drive mechanism and the rotary drive mechanism are located below the switching platform, the volume is large, which causes the space below the entire positioning adjusting device to be crowded, and the positioning adjusting device cannot be used for experiments on large-volume samples, resulting in unreasonable space utilization of the positioning adjusting device and low versatility.

[0004] Therefore, there is an urgent need for a positioning adjusting device for neutron diffraction experiment to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve or at least alleviate part or all of the above problems. To this end, the utility model aims to provide a positioning adjusting device for neutron diffraction experiment, which can improve the space utilization and be used for experiments on large-volume samples, and has high versatility.

[0006] In order to achieve the above goal, the utility model adopts the following technical solutions:

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

[0008] A cantilever support frame, one end of the cantilever support frame is connected to the rack of the neutron diffraction experiment equipment;

[0009] A rotating driving mechanism is arranged at the other end of the cantilever support frame.

[0010] A linear driving mechanism is connected to the output end of the rotating driving mechanism, and the rotating driving mechanism can drive the linear driving mechanism to rotate in an XY plane.

[0011] A connecting frame, the lower part of the connecting frame is used for mounting a fine collimator, and the top of the connecting frame is connected to the output end of the linear driving mechanism, and the linear driving mechanism can drive the connecting frame to move linearly in 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 scheme of the positioning adjusting device for neutron diffraction experiment provided by the utility model, the cantilever support frame comprises:

[0014] A Z-shaped frame comprising opposite first and second ends.

[0015] A first connecting plate, the first end is rotatably connected to the linear driving mechanism through the first connecting plate, and the rotating driving mechanism is arranged on the first connecting plate.

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

[0017] As a preferred scheme of the positioning adjusting device for neutron diffraction experiment provided by the utility model, a plurality of weight reduction structures are arranged on the Z-shaped frame.

[0018] As a preferred scheme of the positioning adjusting device for neutron diffraction experiment provided by the utility model, one of the cantilever support frame and the linear driving mechanism is provided with an arc-shaped guide hole, and the other is provided with a guide piece, and the guide piece is slidably arranged in the arc-shaped guide hole.

[0019] As a preferred scheme of the positioning adjusting device for neutron diffraction experiment provided by the utility model, the number of arc-shaped guide holes is at least two, and at least two arc-shaped guide holes are arranged around the rotating driving mechanism.

[0020] As a preferred scheme of the positioning adjusting device for neutron diffraction experiment provided by the utility model, the linear driving mechanism comprises:

[0021] A mounting plate connected to the output end of the rotating driving mechanism;

[0022] A Y-direction driving assembly arranged on the mounting plate.

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

[0024] An X-direction driving assembly is arranged on the Y-direction moving platform;

[0025] An X-direction moving platform, an output end of the X-direction driving assembly is connected with 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 with the top of the connecting frame.

[0026] As a preferred scheme of the positioning and adjusting device for neutron diffraction experiment, the X-direction driving assembly comprises an X-direction rotating motor, an X-direction lead screw and an X-direction nut, the X-direction rotating motor is arranged on the Y-direction moving platform, an output end of the X-direction rotating motor is connected with the X-direction lead screw to drive the X-direction lead screw to rotate, the X-direction nut is screwed on the X-direction lead screw and is connected with the X-direction moving platform; and / or

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

[0028] As a preferred scheme of the positioning and adjusting device for neutron diffraction experiment, the linear driving mechanism further comprises an X-direction guiding assembly, the X-direction guiding assembly comprises an X-direction sliding rail and an X-direction sliding block in sliding cooperation, the X-direction sliding 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 sliding block is arranged on the other one of the Y-direction moving platform and the X-direction moving platform; and / or

[0029] The linear driving mechanism further comprises a Y-direction guiding assembly, the Y-direction guiding assembly comprises a Y-direction sliding rail and a Y-direction sliding block in sliding cooperation, the Y-direction sliding 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 sliding block is arranged on the other one of the Y-direction moving platform and the mounting plate.

[0030] As a preferred scheme of the positioning and adjusting device for neutron diffraction experiment, the connecting frame comprises a horizontal plate and two vertical plates, the horizontal plate is connected with an output end of the linear driving mechanism, and the two vertical plates are respectively connected with two ends of the horizontal plate in perpendicular mode, and the two vertical plates are respectively used for fixing two sides of the fine collimator.

[0031] As an optional scheme of the positioning adjusting device for neutron diffraction experiment, the distance between the two vertical plates is adjustable to adapt to neutron diffraction experimenters of different widths.

[0032] The positioning adjusting device for neutron diffraction experiment has the advantages that:

[0033] The positioning adjusting device for neutron diffraction experiment has the advantages that: the linear driving mechanism is arranged, the connecting frame can be driven to move linearly along the X direction and / or the Y direction, so that the position adjustment of the fine collimator in the XY plane (horizontal plane) is realized; the rotary driving mechanism is arranged, the linear driving mechanism can be driven and the connecting frame can be driven to rotate in the XY plane, so that the adjustment of the installation angle of the fine collimator in the XY plane is realized, and then the two fine collimators are aligned during the experiment, so that the accuracy of the experimental results is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0035] Figure 1 is a structural schematic view of the positioning adjusting device for neutron diffraction experiment and the fine collimator provided by the embodiments of the present application;

[0036] Figure 2 is a structural schematic view of the positioning adjusting device for neutron diffraction experiment provided by the embodiments of the present application;

[0037] Figure 3 is a partial structural schematic view of the positioning adjusting device for neutron diffraction experiment in one view angle provided by the embodiments of the present application;

[0038] Figure 4 is a structural schematic view of the linear driving mechanism with the X-direction moving platform hidden provided by the embodiments of the present application;

[0039] Figure 5 is a partial structural schematic view of the positioning adjusting device for neutron diffraction experiment in another view angle provided by the embodiments of the present application;

[0040] Figure 6is a sectional structure schematic view of a linear driving mechanism provided by the embodiment of the utility model;

[0041] Figure 7 is Figure 6 The local enlarged view at A.

[0042] Reference signs:

[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 driving mechanism;

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

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

[0048] Before any embodiments of the present utility model are explained in detail, it is to be understood that the present utility model 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 above-described and following drawings.

[0049] In the present utility model, the terms "comprising", "containing", "having" or any other variant thereof are intended to cover non-exclusive inclusions, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes the elements inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a…" does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0050] In the utility model, the term "and / or" is a description of the relationship between the associated objects, which means that there can be three kinds of relationships. For example, A and / or B can mean that there are three cases of A alone, A and B together, and B alone. In addition, the character " / " in the utility model generally indicates that the front and rear associated objects are in a "and / or" relationship.

[0051] In the utility model, the terms "connection", "combination", "coupling" and "installation" can be direct connection, combination, coupling or installation, or indirect connection, combination, coupling or installation. Among them, the direct connection means that two parts or components are connected together without setting an intermediate part, and the indirect connection means that two parts or components are connected with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0052] In the utility model, the person skilled in the art will understand that the relative terms used in conjunction with the number or condition (for example, "about", "approximately", "substantially" and the like) include the value indicated by the context and have the meaning indicated by the context. For example, the relative term at least includes the error degree related to the measurement of the specific value, the tolerance caused by the manufacturing, assembly, use and the like related to the specific value. Such terms should also be regarded as disclosing the range defined by the absolute values of the two endpoints. The relative term can refer to the addition or subtraction of a certain percentage (for example, 1%, 5%, 10% or more) of the indicated value. The numerical value without the relative term should also be disclosed as a specific value with a tolerance. In addition, "substantially" when expressing the relative angular positional relationship (for example, substantially parallel, substantially perpendicular), can refer to the addition or subtraction of a certain degree (for example, 1 degree, 5 degrees, 10 degrees or more) based on the indicated angle.

[0053] In the utility model, the person skilled in the art will understand that the functions performed by the components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by the parts can also be performed by one part, one component, or multiple parts in combination.

[0054] In the utility model, the terms "upper", "lower", "left", "right", "front", "back" and the like are described in the orientation and positional relationship shown in the drawings, and should not be understood as limiting the embodiments of the utility model. In addition, it should also be understood in the context that when referring to one element connected to another element "on" or "under", it can be directly connected to another element "on" or "under", or indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the orientation terms such as upper side, lower side, left side, right side, front side and back side not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, left below, right below, front below and back below.

[0055] Figure 1 The structure schematic diagram of the positioning adjusting device for neutron diffraction experiment and the fine collimator 1000 provided by the embodiment is shown. Figure 2 The structure schematic diagram of the positioning adjusting device for neutron diffraction experiment provided by the embodiment is shown. Figure 3 The partial structure schematic diagram of the positioning adjusting device for neutron diffraction experiment provided by the embodiment is shown in one visual angle. Figures 1-3 As shown in the figure, the positioning adjusting device for neutron diffraction experiment comprises a cantilever support frame 100, a rotary driving mechanism 200, a linear driving mechanism 300 and a connecting frame 400, one end of the cantilever support frame 100 is connected to the rack of the neutron diffraction experiment equipment, the rotary driving mechanism 200 is arranged at the other end of the cantilever support frame 100, the linear driving mechanism 300 is connected to the output end of the rotary driving mechanism 200, the rotary driving mechanism 200 is used for driving the linear driving mechanism 300 to rotate in the XY plane, the lower part of the connecting frame 400 is used for installing the fine collimator 1000, the top of the connecting frame 400 is connected with the output end of the linear driving mechanism 300, and the linear driving mechanism 300 can drive the connecting frame 400 to move linearly in 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 in the horizontal plane, and the specific directions of the X direction and the Y direction are not limited in the embodiment.

[0057] Specifically, in the neutron diffraction experiment, the two positioning adjustment devices are used in pairs, and the fine collimators 1000 installed on the connecting frames 400 of the two positioning adjustment devices need to be aligned to ensure the accuracy of the experimental results. In use, first, the two fine collimators 1000 are respectively installed on the corresponding connecting frames 400, and the linear driving mechanism 300 is used to drive the corresponding connecting frame 400 to move linearly along the X direction and / or the Y direction, so as to realize the position adjustment of the fine collimator 1000 in the XY plane (horizontal plane). The rotary driving mechanism 200 is used to drive the linear driving mechanism 300 and the connecting frame 400 to rotate in the XY plane, so as to realize the adjustment of the installation angle of the fine collimator 1000 in the XY plane, and then the two fine collimators 1000 can be aligned to ensure the accuracy of the experimental results. In addition, by arranging the cantilever support frame 100, the rotary driving mechanism 200 and the linear driving mechanism 300 can be arranged above the connecting frame 400, so as to save the installation space below the connecting frame 400 for installing other mechanisms and larger samples, and improve the versatility and space utilization of the entire positioning adjustment device.

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

[0059] Figure 4 The structural schematic diagram of the linear driving mechanism 300 of the present embodiment is shown, in which the X-direction moving platform 330 is hidden. Figure 4 In combination with the above description Figure 3As shown, the X-direction driving assembly 340 comprises an X-direction rotating motor 341, an X-direction screw rod 342 and an X-direction screw nut 343. The X-direction rotating motor 341 is arranged on the Y-direction moving platform 320, and the output end of the X-direction rotating motor 341 is connected with the X-direction screw rod 342 to drive the X-direction screw rod 342 to rotate. The X-direction screw nut 343 is screwed on the X-direction screw rod 342 and connected with the X-direction moving platform 330. When the X-direction rotating motor 341 works, the X-direction screw rod 342 is driven to rotate, thereby driving the X-direction screw nut 343 screwed thereon to move linearly along the axis direction (i.e. the X direction) of the X-direction screw rod 342, so as to drive the X-direction moving platform 330 to move along the X direction relative to the Y-direction moving platform 320.

[0060] Figure 5 Fig. 6 shows a partial structure schematic view of the positioning and adjusting device for neutron diffraction experiment in another view according to the embodiment. As shown in Figure 5 To ensure the stability of the relative movement between the X-direction moving platform 330 and the Y-direction moving platform 320, the linear driving mechanism 300 further comprises an X-direction guiding assembly 360 in the embodiment. The X-direction guiding assembly 360 comprises an X-direction sliding rail 361 and an X-direction sliding block 362 in sliding cooperation. The X-direction sliding rail 361 extends along the X direction and is arranged on the X-direction moving platform 330. The X-direction sliding block 362 is arranged on the Y-direction moving platform 320. The X-direction guiding assembly 360 can guide the movement of the X-direction moving platform 330 along the X direction relative to the Y-direction moving platform 320, and ensure the smoothness of the sliding process. Of course, in other embodiments, the X-direction sliding rail 361 can be arranged on the Y-direction moving platform 320, and the X-direction sliding block 362 can be arranged on the X-direction moving platform 330, which can also achieve the above effect.

[0061] Figure 6 Fig. 7 shows a cross-sectional structure schematic view of the linear driving mechanism 300 according to the embodiment. As shown in Figure 6 and in combination with Figure 5 As shown, the Y-direction driving assembly 350 comprises a Y-direction rotating motor 351, a Y-direction screw rod 352 and a Y-direction screw nut 353. The Y-direction rotating motor 351 is arranged on the mounting plate 310, and the output end of the Y-direction rotating motor 351 is connected with the Y-direction screw rod 352 to drive the Y-direction screw rod 352 to rotate. The Y-direction screw nut 353 is screwed on the Y-direction screw rod 352 and connected with the Y-direction moving platform 320. When the Y-direction rotating motor 351 works, the Y-direction screw rod 352 is driven to rotate, thereby driving the Y-direction screw nut 353 screwed thereon to move linearly along the axis direction (i.e. the Y direction) of the Y-direction screw rod 352, so as to drive the Y-direction moving platform 320 to move along the Y direction relative to the mounting plate 310.

[0062] To ensure the stability of the Y-direction moving platform 320 when moving relative to the mounting plate 310, in the embodiment, the linear driving mechanism 300 further comprises a Y-direction guiding assembly 370, which comprises a Y-direction slide rail 371 and a Y-direction slide block 372 in sliding fit. The Y-direction slide rail 371 extends along the Y direction and is arranged on the mounting plate 310, and the Y-direction slide block 372 is arranged on the Y-direction moving platform 320. By arranging the Y-direction guiding assembly 370, the movement of the Y-direction moving platform 320 along the Y direction relative to the mounting plate 310 can be guided, and the smoothness of the sliding process can be ensured. Of course, in other embodiments, the Y-direction slide rail 371 can be arranged on the Y-direction moving platform 320, and the Y-direction slide block 372 can be arranged on the mounting plate 310, which can also achieve the above-mentioned effect.

[0063] As shown in Figure 2 and Figure 3 The cantilever support frame 100 comprises a Z-shaped frame 110, a first connecting plate 120 and a second connecting plate 130. The Z-shaped frame 110 comprises opposite first and second ends 111 and 112. The first end 111 is rotatably connected to the linear driving mechanism 300 (specifically, the mounting plate 310) through the first connecting plate 120. The second end 112 is connected to the rack of the neutron diffraction experiment equipment through the second connecting plate 130. This arrangement facilitates the machining of the cantilever support frame 100 and improves the stability of the connection between the cantilever support frame 100 and the rack of the neutron diffraction experiment 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 a large turning angle and is not prone to breaking. The fixed end of the rotary driving mechanism 200 is arranged on the first connecting plate 120, and the output end of the rotary driving mechanism 200 is connected to the mounting plate 310 through the first connecting plate 120.

[0064] Optionally, the Z-shaped frame 110 is further provided with a plurality of weight reduction structures to reduce the weight of the entire cantilever support frame 100 while ensuring the structural stability of the cantilever support frame 100, facilitate the installation of the operator, and to a certain extent, reduce the use of materials and reduce the processing cost.

[0065] To ensure the stability of the relative rotation between the cantilever support frame 100 and the linear driving mechanism 300, the cantilever support frame 100 is provided with arc-shaped guide holes 121, and the linear driving mechanism 300 is provided with guide pieces which are slidably arranged in the arc-shaped guide holes 121. When the rotary driving mechanism 200 drives the linear driving mechanism 300 to rotate relative to the cantilever support frame 100, the guide pieces can slide along the track of the arc-shaped guide holes 121 to provide guidance for the relative rotation between the linear driving mechanism 300 and the cantilever support frame 100 and ensure the stability of the relative rotation therebetween. In the embodiment, the arc-shaped guide holes 121 are arranged on the first connecting plate 120, and the guide pieces are arranged on the mounting plate 310. The guide pieces can be guide pins. Of course, in other embodiments, the arc-shaped guide holes 121 can be arranged on the mounting plate 310, and the guide pieces can be arranged on the first connecting plate 120, which can also achieve the above-mentioned effect.

[0066] Optionally, the number of the arc-shaped guide holes 121 is at least two, and the at least two arc-shaped guide holes 121 are arranged around the rotary driving mechanism 200 to further ensure that the linear driving mechanism 300 and the cantilever support frame 100 can stably rotate relative to each other. In the embodiment, the number of the arc-shaped guide holes 121 is four, and the four arc-shaped guide holes 121 are distributed on the circumference with the axis of the rotary driving mechanism 200 as the center. Of course, in other embodiments, the number of the arc-shaped guide holes 121 can also be two, three, five, six or even more, which is not limited in the embodiment. In addition, the arc length of a single arc-shaped guide hole 121 is not limited in the embodiment, and the operator can adjust the arc length of a single arc-shaped guide hole 121 according to the angle required for adjusting the connecting frame 400 in actual experiments.

[0067] In the embodiment, the rotary driving mechanism 200 is a driving motor which has high energy efficiency, simple structure, is convenient to install and maintain, and is easy to control. Of course, in other embodiments, the rotary driving mechanism 200 can also be selected from other devices having a rotary driving function, which is not limited in the embodiment.

[0068] Figure 7 A partial enlarged view is shown at A. As shown in Figure 6 A partial enlarged view is shown at A. As shown in Figure 7 A partial enlarged view is shown at A. As shown in Figure 1As shown, the connecting frame 400 comprises a horizontal plate 410 and two vertical plates 420, the horizontal plate 410 is connected to the output end (specifically the X-direction moving platform 330) of the linear driving mechanism 300, and the two vertical plates 420 are respectively connected to the two ends of the horizontal plate 410 perpendicularly, and the two vertical plates 420 are respectively used for fixing the two sides of the fine collimator 1000. With this arrangement, the operator can fix the fine collimator 1000 from the side of the fine collimator 1000 when installing the fine collimator 1000, which simplifies the operation process and improves the convenience of installation. In this embodiment, the fine collimator 1000 is connected to the vertical plate 420 by bolts, which is convenient to operate and stable in 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 collimator 1000 of different specifications, so as to adapt to fine collimators 1000 of different widths, thereby improving the versatility of the entire positioning adjusting device. Specifically, the two ends of the horizontal plate 410 are provided with strip-shaped holes 411 extending in the Y direction, each vertical plate 420 is provided with a fixing hole corresponding to the strip-shaped hole 411 on the corresponding side, and the adjusting member 430 can pass through the strip-shaped hole 411 and be fixed in the fixing hole, so as to realize the 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 adjusting member 430 can be loosened first, and then the vertical plate 420 is pushed along the extension direction of the strip-shaped hole 411, and after the two vertical plates 420 are adjusted to the appropriate position, the adjusting member 430 is tightened, which is convenient to operate and tightly connected. The adjusting member 430 is an adjusting bolt, and the fixing hole is a threaded hole.

[0070] Optionally, a plurality of fixing holes are arranged on each vertical plate 420, the plurality of fixing holes are arranged at intervals in the X direction, and each fixing hole corresponds to a strip-shaped hole 411, so as to ensure the stable connection between the vertical plate 420 and the horizontal plate 410.

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

Claims

1. A positioning adjustment device for a neutron diffraction experiment, characterized by, The application relates to a cantilever support frame (100) connected to a rack of a neutron diffraction experiment device at one end, a rotary driving mechanism (200) arranged at the other end of the cantilever support frame (100), a linear driving mechanism (300) connected to an output end of the rotary driving mechanism (200), the rotary driving mechanism (200) being capable of driving the linear driving mechanism (300) to rotate in an XY plane, a connecting frame (400) having a lower part for mounting a fine collimator (1000) and a top part connected to an output end of the linear driving mechanism (300), the linear driving mechanism (300) being capable of driving the connecting frame (400) to move linearly in an X direction and / or a Y direction, and the X direction and the Y direction being perpendicular to each other. The cantilever support frame (100) comprises a Z-shaped frame (110) having opposite first and second ends (111 and 112), a first connecting plate (120) through which the first end (111) is rotationally connected to the linear driving mechanism (300), and a second connecting plate (130) through which the second end (112) is connected to the rack. The Z-shaped frame (110) is provided with a plurality of weight-reducing structures. The cantilever support frame (100) and the linear driving mechanism (300) are provided with arc-shaped guide holes (121) and guide members, respectively, the guide members slidingly passing through the arc-shaped guide holes (121). The arc-shaped guide holes (121) are arranged around the rotary driving mechanism (200). The linear driving mechanism (300) comprises a mounting plate (310) connected to an output end of the rotary driving mechanism (200), a Y-direction driving assembly (350) arranged on the mounting plate (310), a Y-direction moving platform (320) connected to an output end of the Y-direction driving assembly (350) to drive the Y-direction moving platform (320) to move in a Y direction, an X-direction driving assembly (340) arranged on the Y-direction moving platform (320), and an X-direction moving platform (330) connected to an output end of the X-direction driving assembly (340) to drive the X-direction moving platform (330) to move in an X direction, the X-direction moving platform (330) being connected to a top part of the connecting frame (400).

2. The positioning adjustment device for a neutron diffraction experiment according to claim 1, wherein ​ ​ ​ ​ 3. The positioning adjustment device for a neutron diffraction experiment according to claim 2, characterized by ​ 4. The positioning adjustment device for neutron diffraction experiments according to claim 1, characterized in that ​ 5. The positioning adjustment device for neutron diffraction experiments according to claim 4, characterized in that ​ 6. The positioning adjustment device for neutron diffraction experiments according to claim 1, characterized in that ​ ​ ​ ​ ​ ​ 7. The positioning adjustment device for neutron diffraction experiments according to claim 6, characterized in that The X-direction driving assembly (340) comprises an X-direction rotary motor (341), an X-direction screw rod (342) and an X-direction screw nut (343), the X-direction rotary motor (341) is arranged on the Y-direction moving platform (320), the output end of the X-direction rotary motor (341) is connected with the X-direction screw rod (342) to drive the X-direction screw rod (342) to rotate, the X-direction screw nut (343) is screwed on the X-direction screw rod (342) and is connected with the X-direction moving platform (330); and / or The Y-direction driving assembly (350) comprises a Y-direction rotary motor (351), a Y-direction screw rod (352) and a Y-direction screw nut (353), the Y-direction rotary motor (351) is arranged on the mounting plate (310), the output end of the Y-direction rotary motor (351) is connected with the Y-direction screw rod (352) to drive the Y-direction screw rod (352) to rotate, the Y-direction screw nut (353) is screwed on the Y-direction screw rod (352) and is connected with the Y-direction moving platform (320).

8. The positioning adjustment device for a neutron diffraction experiment according to claim 6, wherein The linear driving mechanism (300) further comprises an X-direction guiding assembly (360), the X-direction guiding assembly (360) comprises an X-direction sliding rail (361) and an X-direction sliding block (362) in sliding cooperation, the X-direction sliding 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), the X-direction sliding block (362) is arranged on the other one of the Y-direction moving platform (320) and the X-direction moving platform (330); and / or The linear driving mechanism (300) further comprises a Y-direction guiding assembly (370), the Y-direction guiding assembly (370) comprises a Y-direction sliding rail (371) and a Y-direction sliding block (372) in sliding cooperation, the Y-direction sliding rail (371) extends along the Y-direction and is arranged on one of the Y-direction moving platform (320) and the mounting plate (310), the Y-direction sliding block (372) is arranged on the other one of the Y-direction moving platform (320) and the mounting plate (310).

9. The positioning adjustment device for a neutron diffraction experiment according to any one of claims 1 to 8, characterized by, The connecting frame (400) comprises a horizontal plate (410) and two vertical plates (420), the horizontal plate (410) is connected with the output end of the linear driving mechanism (300), the two vertical plates (420) are respectively connected perpendicularly with two ends of the horizontal plate (410), and the two vertical plates (420) are respectively used for fixing two sides of the fine collimator (1000).

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

Images