Inclination adjusting device for sub-second precision adjustment

Abstract

The invention relates to an inclination adjusting device for subsecond precision adjustment. The inclination adjusting device comprises an inclination adjusting platform, a subsecond adjusting assembly, a subsecond adjusting assembly and a bearing part which are sequentially connected from bottom to top. The fixed end of the sub-grading adjusting assembly is fixed to one side of the inclination adjusting platform, and the movable end of the sub-grading adjusting assembly is pressed on the other side of the inclination adjusting platform in a sleeving mode. One end of the bearing part is fixed to the fixed end of the sub-grading adjusting assembly, and the other end of the bearing part is flatly pressed to the movable end of the sub-second adjusting assembly. The sub-second-level adjusting assembly is arranged on the upper portion of the sub-second-level adjusting assembly, and the movable end of the sub-second-level adjusting assembly moves in the length direction of the bearing piece. The device has the advantages that rough adjustment of the rotation angle of the bearing piece is achieved through the sub-grading adjusting assembly, then fine adjustment of the rotation angle of the bearing piece is achieved through the sub-second adjusting assembly, and then sub-second precision adjustment of equipment on the upper portion of the bearing piece within a large angle range is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical motion precision control, in particular to a tilt adjustment device for sub-second precision adjustment. Background Art

[0002] In the field of cold atom interferometric precision measurement technology, precise adjustment of the initial spatial position of the cold atom gravity sensitive unit is an important means to keep the Raman light wave vector plumb with high precision. During the debugging stage of the Raman light collimation of the cold atom gravity sensitive unit, an inclinometer is usually used to record the initial position of the sensitive unit when the Raman light is kept plumb, and its accuracy is generally at the sub-second level. In the subsequent debugging stage, the sensitive unit with the initial position adjusted will usually move its position to adapt to the flexibility of debugging, so it is necessary to adjust the actual position of the sensitive unit again to keep it consistent with the initial position. It is usually difficult to achieve this by manually adjusting the base of the sensitive unit. The existing two-dimensional tilt adjustment structure also has the disadvantages of large height, adjustment accuracy mostly above the second level, heavy structure, and difficulty in carrying and loading and unloading. Summary of the invention

[0003] The present invention aims at the deficiencies existing in the background technology and provides a tilt adjustment device for sub-second precision adjustment.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a tilting device for sub-second precision adjustment, comprising a tilting platform, a sub-grading adjustment component, a sub-second adjustment component, and a bearing member connected in sequence from bottom to top, wherein the fixed end of the sub-grading adjustment component is fixed to one side of the tilting platform, and the movable end is sleeved on the other side of the tilting platform, one end of the bearing member is fixed to the fixed end of the sub-grading adjustment component, and the other end is flatly pressed on the movable end of the sub-second adjustment component, and the movable end of the sub-grading adjustment component is rotated to drive one end of the bearing plate to generate displacement in the Z-axis direction, so as to realize the sub-grading rotation of the bearing plate in the Z-axis direction; The sub-second adjustment component is arranged on the upper part of the sub-second adjustment component, and its movable end moves along the X-axis direction of the carrier. By rotating the rotating wheel at the fixed end of the sub-second adjustment component, the movable end of the sub-second adjustment component drives one end of the carrier to generate displacement in the Z-axis direction, so as to realize sub-second angle adjustment of the carrier plate in the Z-axis direction. As a further technical solution, the sub-grading adjustment assembly includes a first fixed member, an intermediate plate, a Z-direction movable member, and a second fixed member connected in sequence, wherein one end of the first fixed member is fixed to the tilt adjustment platform, and the other end is connected to one end of the intermediate plate, and the other end of the intermediate plate is sleeve-pressed and connected to the Z-direction movable member to realize rotation in the Z-axis direction along with the Z-direction movable member; The lower part of the second fixing member is fixed to the middle plate, and the upper part is fixedly connected to one end of the supporting plate; the first fixing member, the second fixing member, the sub-second adjustment component, and the Z-direction moving member are arranged in sequence along the length direction of the tilt adjustment platform.

[0005] As a further technical solution, the first fixing member includes: a first fixing seat, a first rotating shaft, and a first connecting member, wherein a plurality of the first fixing seats are provided and are spaced apart along the Y-axis direction of the tilting platform, so that the first rotating shaft is supported on the tilting platform through the plurality of the first fixing seats; One end of the first connecting member is sleeved on the first rotating shaft, and the other end is connected and fixed to the fixed end of the middle plate.

[0006] As a further technical solution, the Z-axis movable part includes a screw rod, a nut, and a second connecting part. One end of the screw rod is vertically fixed to the upper part of the tilting platform, and the nut is threadedly connected to the screw rod. One end of the second connecting part is fixedly connected to the intermediate plate, and the other end is inserted into the screw rod to abut against the upper end surface of the nut. By pulling the nut, the side of the intermediate plate connected to it is driven to be displaced in the Z-axis direction to realize the sub-stage rotation of the supporting plate in the Z-axis direction.

[0007] As a further technical solution, the Z-axis movable member further includes a gasket fixedly connected to the upper end surface of the nut, and one end of the second connecting member facing away from the middle plate abuts against the upper end surface of the gasket.

[0008] As a further technical solution, the second fixing member includes a second fixing seat, a third fixing seat, and a second rotating shaft. The second fixing seat and the third fixing seat are provided in plurality and are spaced apart along the Y-axis direction of the middle plate, so that the second rotating shaft is supported on the middle plate through the plurality of the second fixing seats, and the upper bearing member is supported through the plurality of the third fixing seats. The first rotating shaft and the second rotating shaft are arranged in parallel.

[0009] As a further technical solution, the sub-second adjustment assembly further includes a fourth fixed seat, a worm, a turbine, an eccentric wheel, and a top wedge assembly, wherein the worm is mounted on the intermediate plate through the fourth fixed seat, and the rotating wheel is connected to one end of the worm and rotates around the Y-axis direction of the intermediate plate; One side of the turbine is gear-engaged with the spiral gear ring on the worm, and the eccentric wheel is arranged on the upper part of the turbine and eccentrically fixed to it. Through the rotation of the rotating wheel, the worm and the turbine are driven to rotate in turn, and then the eccentric wheel pushes and pulls the top wedge assembly to move along the X-axis direction of the intermediate plate; One end of the support member is fixedly connected to the top wedge assembly, and the movement of the top wedge assembly drives one end of the support plate to be displaced in the Z-axis direction, so as to realize sub-second rotation of the support member in the Z-axis direction.

[0010] As a further technical solution, the top wedge assembly includes a third connecting member, a push-pull rod, a fifth fixing seat, a top wedge connecting member, a top wedge body, a lower fixing seat, and an upper fixing seat, wherein the fifth fixing seat and the lower fixing seat are both fixed to the middle plate, and the push-pull rod is arranged on the fifth fixing seat, so that the third connecting member, the push-pull rod, the top wedge connecting member, and the top wedge body are fixedly connected in sequence; The side of the third connecting member facing away from the push-pull rod is connected to the eccentric wheel, and the upper fixed seat is fixedly connected to the supporting member and arranged opposite to the lower fixed seat, so that the side of the top wedge body facing away from the top wedge connecting member is inserted into the gap between the upper fixed seat and the lower fixed seat, and moves along the X-axis direction of the intermediate plate under the drive of the push-pull rod, so that the supporting plate is displaced in the Z-axis direction, so as to realize sub-second rotation of the supporting plate in the Z-axis direction.

[0011] As a further technical solution, the longitudinal section of the top wedge body is configured as a right-angled trapezoid, and the lower base of the right-angled trapezoid is located on one side of the top wedge connecting piece.

[0012] As a further technical solution, a roller is sleeved on the connecting shaft of the lower fixed seat, so that the lower part of the top wedge body is placed on the roller.

[0013] The beneficial effects of the present invention are: firstly, the sub-grading precision adjustment of the carrier in the longitudinal direction is realized by the sub-grading adjustment component, and then the sub-second precision adjustment of the carrier in the longitudinal direction is realized by the sub-second adjustment component, and then the sub-second precision adjustment of the upper equipment of the carrier in a larger angle range is realized. At the same time, the height of the structure is small, and at least one structure can be positively stacked to realize two-dimensional adjustment, and the adjustment precision can be above the sub-second level; In addition, the structure of the device is small in height and light in weight, and is easy to carry and load and unload. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a tilt adjustment device for sub-second precision adjustment according to the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of a tilt adjustment device for sub-second precision adjustment of the present invention after removing the bearing plate; Figure 3 It is a partially enlarged three-dimensional structural schematic diagram of a tilt adjustment device for sub-second precision adjustment of the present invention after removing the bearing plate; Figure 4 It is a three-dimensional enlarged structural schematic diagram of the top wedge assembly, the Z-direction movable part, and the middle plate on the tilt adjustment platform of the present invention when they are connected; Figure 5 It is an enlarged structural schematic diagram of the lower fixing seat; Figure 6 It is a schematic diagram of the three-dimensional structure when two tilt adjustment devices are orthogonally connected in the present invention; Figure 7 It is a three-dimensional structural entity after removing an upper bearing plate when two tilt adjustment devices in the present invention are orthogonally connected.

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows: Tilt adjustment platform 1; Sub-fractional regulatory component 2; A first fixing member 21, a first fixing seat 211, a first rotating shaft 212, and a first connecting member 213; Middle plate 22; Z-direction movable member 23, screw rod 231, nut 232, second connecting member 233, gasket 234; A second fixing member 24, a second fixing seat 241, a third fixing seat 242, and a second rotating shaft 243; Sub-second adjustment component 3; Rotating wheel 31, fourth fixing seat 32; Worm 33, spiral gear ring 331; Turbine 34, eccentric wheel 35; Top wedge assembly 36, third connecting member 361, bayonet 3611, push-pull rod 362, fifth fixing seat 363, top wedge connecting member 364, inner recess 3641, top wedge body 365, lower fixing seat 366, roller 3661, upper fixing seat 367; Carrying member 4. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0017] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0018] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details to obscure the description of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0019] Example 1 In order to achieve high-precision adjustment of the Raman light collimation of the cold atomic gravity sensitive unit and achieve sub-second precision adjustment, this embodiment provides a tilt adjustment device for sub-second precision adjustment, see Figure 1 , Figure 2 , including a tilting platform 1, a sub-grading adjustment component 2, a sub-second adjustment component 3, and a bearing 4 connected in sequence from bottom to top, wherein the fixed end of the sub-grading adjustment component 2 is fixed to one side of the tilting platform 1, and the movable end is sleeved on the other side of the tilting platform 1, and one end of the bearing 4 is fixed to the fixed end of the sub-grading adjustment component 2, and the other end is flatly pressed on the movable end of the sub-second adjustment component 3, and the movable end of the sub-grading adjustment component 2 is rotated to drive one end of the bearing 4 to generate displacement in the Z-axis direction, so as to realize the sub-grading rotation of the bearing 4 in the Z-axis direction; it should be noted that the rotating end of the bearing 4 realizes the rotation in the Z-axis direction under the action of the sub-grading adjustment component 2, that is, the sub-grading precision adjustment of the bearing 4 and one end of the upper device of the bearing 4 in the Z-axis direction is realized. The specific parameters of the sub-grading precision adjustment are determined according to the situation.

[0020] The sub-second adjustment component 3 is arranged on the upper part of the sub-grading adjustment component 2, and its movable end moves along the X-axis direction of the carrier 4. By rotating the rotating wheel 31 at the fixed end of the sub-second adjustment component 3, the movable end of the sub-second adjustment component 3 drives one end of the carrier 4 to generate displacement in the Z-axis direction, so as to realize the sub-second rotation of the carrier 4 in the Z-axis direction. It can be seen that if the carrier 4 and the equipment on the carrier 4 are adjusted in the Z-axis direction with sub-second precision, the sub-grading precision adjustment can be performed first by the sub-grading adjustment component 2, and then the sub-second adjustment component 3 can be used for adjustment, thereby achieving fast and accurate sub-second precision adjustment.

[0021] along Figure 2From the perspective, the X-axis direction is the length direction of the tilting platform 1, that is, from left to right, the Y-axis direction is the width direction of the tilting platform 1, that is, from front to back; and the Z-axis direction is Figure 1 As shown, the tilting platform 1 is adjusted to the direction of the supporting member 4 .

[0022] For example, to achieve two-dimensional angle adjustment, the two tilt adjustment devices of the present invention can be connected in a stacked orthogonal manner, that is, the sub-grading adjustment components 2 of the upper and lower layers can be arranged vertically in space (the other structural arrangements of the upper and lower layers are arranged in the same way). (See Figure 6 , Figure 7 ) In the specific implementation process, see Figure 2 The sub-grading adjustment component 2 includes a first fixing member 21, an intermediate plate 22, a Z-direction movable member 23, and a second fixing member 24 connected in sequence. One end of the first fixing member 21 is fixed to the tilting platform 1, and the other end is connected to one end of the intermediate plate 22. The other end of the intermediate plate 22 is movably connected to the Z-direction movable member 23 to achieve a slight movement in the Z-axis direction along with the Z-direction movable member 23, that is, when the Z-direction movable member 23 moves, the end of the intermediate plate 22 connected to it is driven to move slightly along the Z-axis direction. At this time, the edge of one end of the intermediate plate 22 connected to the first fixing member 21 is a rotating edge, that is, the other side of the intermediate plate 22 realizes rotation in the Z-axis direction along the rotating edge; The width of the intermediate plate 22 on the side of the first fixing member 21 is greater than the width of the intermediate plate 22 on the side of the Z-direction movable member 23 , so as to reduce the overall weight of the device, lower the cost, and facilitate portability.

[0023] The lower part of the second fixing member 24 is fixed to the middle plate 22, and the upper part is fixedly connected to one end of the supporting member 4, so that when the sub-grading adjustment component 2 and the sub-second adjustment component 3 move, a small movement of one side of the supporting member 4 in the Z-axis direction can be achieved; the first fixing member 21, the second fixing member 24, the sub-second adjustment component 3, and the Z-direction movable member 23 are arranged in sequence along the length direction of the tilt adjustment platform 1.

[0024] For example, see Figure 2 The first fixing member 21 includes: a first fixing seat 211, a first rotating shaft 212, and a first connecting member 213. The first fixing seats 211 are provided in plurality and are arranged at intervals along the Y-axis direction of the tilting platform 1, so that the first rotating shaft 212 is supported on the tilting platform 1 through the plurality of the first fixing seats 211; One end of the first connecting member 213 is sleeved on the first rotating shaft 212 , and the other end is connected and fixed to one end of the middle plate 22 .

[0025] For example, three first fixing seats 211 are provided, which are respectively located at both ends and the middle of the first rotating shaft 212; the longitudinal section of the first fixing seat 211 is an inverted T-shape, and the horizontal side of the inverted T-shape can be fixed to the tilting platform 1 by screws; a through hole (not numbered in the figure) is provided at one end of the vertical side of the inverted T-shape away from the horizontal side, which is used to sleeve the first rotating shaft 212, that is, the through hole is coaxial with the first rotating shaft 212.

[0026] For example, the first connecting member 213 is a structure with a Z-shaped longitudinal section (such as Figure 2 The Z-shaped upper and lower parts are as shown in FIG. 2 and 3 , and the upper and lower parts are as shown in FIG. 2 . As shown in FIG. 2 , the upper and lower parts of the Z-shaped upper and lower parts are as shown in FIG. 2 . As shown in FIG. 2 , the upper and lower parts of the Z-shaped upper and lower parts are as shown in FIG. 2 .

[0027] In the specific implementation process, see Figure 2 , Figure 3 The Z-direction movable member 23 includes a screw rod 231, a nut 232, and a second connecting member 233. One end of the screw rod 231 is vertically fixed to the upper part of the tilting platform 1, and the nut 232 is threadedly connected to the screw rod 231. One end of the second connecting member 233 is fixedly connected to the intermediate plate 22, and the other end is inserted into the screw rod 231 to abut against the upper end surface of the nut 232. By pulling the nut 232, the side of the intermediate plate 22 connected to it is driven to make a slight movement in the Z-axis direction, so as to realize the sub-step rotation of the bearing member 4 in the Z-axis direction. That is, when the nut 232 is pulled, the nut 232 rises or falls along the height direction of the screw rod 231 (i.e., the Z-axis direction), and then drives the second connecting member 233 and the intermediate plate 22 to rise or fall at the same time in turn. Since the sub-second adjustment component 3 is located on the intermediate plate 22, and one end of the supporting member 4 is fixed to the second fixing member 24 and the other end is mounted on the sub-second adjustment component 3, the movement of the intermediate plate 22 can drive the sub-second adjustment component 3 and the supporting member 4 to rise or fall in the Z-axis direction in turn. In this process, when one end of the supporting member 4 located at the Z-direction movable member 23 produces a small displacement in the Z-axis direction, the second fixing member 24 at the opposite end thereof serves as a rotation axis. In order to improve stability and extend the service life of the nut 232, the Z-direction movable member 23 further includes a washer 234 fixedly connected to the upper end surface of the nut 232, and one end of the second connecting member 233 facing away from the middle plate 22 abuts against the upper end surface of the washer 234. For example, the upper end surface of the washer 234 can be a conical surface.

[0028] In the specific implementation process, see Figure 2 The second fixing member 24 includes a second fixing seat 241, a third fixing seat 242, and a second rotating shaft 243. The second fixing seat 241 and the third fixing seat 242 are provided in a plurality and are arranged at intervals along the Y-axis direction of the middle plate 22, so that the second rotating shaft 243 is supported on the middle plate 22 through a plurality of the second fixing seats 241 and supports the upper bearing member 4 through a plurality of the third fixing seats 242; the first rotating shaft 212 and the second rotating shaft 243 are arranged in parallel. During operation, the bearing member 4 can rotate in the Z-axis direction around the second rotating shaft 243, that is, the second rotating shaft 243 can serve as a rotating shaft for the bearing member 4 to rotate.

[0029] The sub-grading precision adjustment in the present invention is achieved as follows. For example, the rotation radius of the intermediate plate 22 (i.e., the vertical distance from the first rotating shaft 212 to the contact point between the intermediate plate 22 and the nut 232) is 400 mm. When the pitch of the screw 231 is 1 mm, when the nut 232 rotates one circle, the intermediate plate 22 rises 1 mm in the Z-axis direction. Correspondingly, the intermediate plate 22 rotates 0.143° relative to the horizontal plane in the Z-axis direction. When the rotation precision of the nut 232 is controlled within 36°, the rotation of the nut 232 can simultaneously realize the sub-grading angle rotation of the intermediate plate 22 and the carrier 4.

[0030] In the specific implementation process, see Figure 1-Figure 5 The sub-second adjustment component 3 also includes a fourth fixed seat 32, a worm 33, a turbine 34, an eccentric wheel 35, and a top wedge assembly 36. The worm 33 is installed on the middle plate 22 through the fourth fixed seat 32. The rotating wheel 31 is connected to one end of the worm 33 and rotates around the Y-axis direction of the middle plate 22; one side of the turbine 34 is gear-engaged with the spiral gear ring 331 on the worm 33, and the eccentric wheel 35 is arranged on the upper part of the turbine 34 and is eccentrically fixed thereto. Through the rotation of the rotating wheel 31, the worm 33 and the turbine 34 are driven to rotate in turn, and then the eccentric wheel 35 pushes and pulls the top wedge assembly 36 to move along the X-axis direction of the middle plate 22; one end of the bearing member 4 is fixedly connected to the top wedge assembly 36, and the movement of the top wedge assembly 36 drives one end of the bearing member 4 to produce a smaller movement in the Z-axis direction to achieve sub-second rotation of the bearing member 4.

[0031] Further, the top wedge assembly 36 includes a third connecting member 361, a push-pull rod 362, a fifth fixing seat 363, a top wedge connecting member 364, a top wedge body 365, a lower fixing seat 366, and an upper fixing seat 367. The fifth fixing seat 363 and the lower fixing seat 366 are both fixed to the middle plate 22, and the push-pull rod 362 is disposed on the fifth fixing seat 363, so that the third connecting member 361, the push-pull rod 362, the top wedge connecting member 364, and the top wedge body 365 are fixedly connected in sequence; The side of the third connecting member 361 facing away from the push-pull rod 362 is connected to the eccentric wheel 35, and the upper fixed seat 367 is fixedly connected to the supporting member 4 and is arranged opposite to the lower fixed seat 366, so that the side of the top wedge body 365 facing away from the top wedge connecting member 364 is inserted into the gap between the upper fixed seat 367 and the lower fixed seat 366, and moves along the X-axis direction of the intermediate plate 22 under the drive of the push-pull rod 362, so that the supporting member 4 is displaced in the Z-axis direction (such as a smaller movement) to achieve sub-second angular rotation of the supporting member 4.

[0032] For example, see Figure 3 The third connecting member 361 is provided with a bayonet 3611 with a downward opening on one side facing the eccentric wheel 35, which is used to clamp the edge of the eccentric wheel 35, that is, the width of the bayonet 3611 is adapted to the thickness of the edge of the eccentric wheel 35, and the third connecting member 361 is provided with a socket for inserting one end of the push-pull rod 362 along its X-axis direction. When the push-pull rod 362 is inserted into the socket, it can be fixed by a screw. For example, the fixing screw can be inserted along the Z-axis direction to connect and fix the third connecting member 361 and the push-pull rod 362; The other end of the push-pull rod 362 is inserted into the insertion hole of the top wedge connector 364 and fixed by a screw (for example, the screw is inserted along the Y-axis direction to connect and fix the end of the push-pull rod 362 to the top wedge connector 364), and the top wedge connector 364 is provided with an inner recess 3641 with an opening facing the Z-direction movable member 23 on one side away from the push-pull rod 362, and a screw is inserted along the Y-axis direction of the inner recess 3641 to fix one end of the top wedge body 365 in the top wedge connector 364; More specifically, the longitudinal section of the top wedge body 365 is configured as a right-angled trapezoid (eg Figure 3The bottom of the right-angled trapezoid is located on one side of the top wedge connector 364, that is, the upper portion of the top wedge body 365 has a slope, and the slope on the side of the top wedge connector 364 is higher than the slope on the side close to the Z-direction movable member 23. When the top wedge body 365 moves along the X-axis, the change in slope will cause this end of the support member 4 to make a smaller movement in the Z-axis direction.

[0033] For example, see Figure 5 In order to facilitate the smooth movement of the top wedge body 365 and prevent the top wedge body 365 from falling out, a roller 3661 is sleeved on the connecting shaft of the lower fixed seat 366, so that the lower part of the top wedge body 365 is placed on the roller 3661. More specifically, the longitudinal section of the upper fixed seat 367 is H-shaped. Unlike the lower fixed seat 366, the horizontal side of the H-shaped lower fixed seat 366 is sleeved with a roller 3661 coaxial therewith, so that the bottom end of the top wedge body 365 slides along the roller 3661, and at the same time, the upper end of the top wedge body 365 rolls along the horizontal side of the upper fixed seat 367.

[0034] Furthermore, the lower fixing seat 366 and the upper fixing seat 367 are fixedly connected to the middle plate 22 and the bearing member 4 respectively by screws.

[0035] Sub-second precision adjustment can be performed first and then the sub-second precision adjustment as follows. The sub-second precision adjustment in the present invention is achieved as follows: for example, when the rotation radius of the carrier 4 (i.e., the vertical distance from the second rotating shaft 243 to the lower fixed base) is 300 mm, the number of teeth of the spiral gear ring 331 on the turbine 34 is 70, and the rotation of the turbine 34 by 80° drives the top wedge assembly 36 to generate a displacement of 3 mm in the X-axis direction; the inclination of the top wedge body 365 is 0.2 (i.e., the vertical distance of the top wedge body 365 on the Z-axis direction on the longitudinal section) is 0.2. The ratio of the length in the X-axis direction to the length in the X-axis direction) is set so that the worm 33 rotates one circle and the turbine 34 rotates 36° / 7. Correspondingly, the displacement of the top wedge body 365 in the X-axis direction is 27mm / 140, and the displacement of the support member 4 pushed by the top wedge body 365 in the Z-axis direction is 27mm / 700, corresponding to a rotation angle of 0.00737° for the support member 4. When the rotation of the worm 33 is precisely controlled within 13°, the rotation of the worm 33 can achieve a sub-second angular rotation of the support member 4.

[0036] It can be explained that the rotation accuracy can be determined according to specific parameters of each structure, for example, the pitch of the screw 231, the number of teeth of the spiral gear ring 331, the inclination of the top wedge body 365, etc.

[0037] It should be noted that, in this embodiment, the first fixing seat 211 , the second fixing seat 241 , the third fixing seat 242 , the fourth fixing seat 32 , and the fifth fixing seat 363 have the same structure, but the setting direction of the third fixing seat 242 is opposite to that of the first fixing seat 211 .

[0038] For example, the upper fixing seat 367 may be a structure formed by connecting two third fixing seats 242 via a connecting shaft, and the setting direction of the upper fixing seat 367 is the same as the setting direction of the third fixing seat 242 .

[0039] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0040] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A tilt adjustment device for sub-second precision adjustment, characterized in that: The invention comprises a tilting platform (1), a sub-grading adjustment component (2), a sub-second adjustment component (3), and a bearing member (4) which are connected in sequence from bottom to top; the fixed end of the sub-grading adjustment component (2) is fixed to one side of the tilting platform (1), and the movable end is sleeved and pressed on the other side of the tilting platform (1); one end of the bearing member (4) is fixed to the fixed end of the sub-grading adjustment component (2), and the other end is pressed flatly on the movable end of the sub-second adjustment component (3); by rotating the movable end of the sub-grading adjustment component (2), one end of the bearing member (4) is driven to rotate in the Z-axis direction, so as to realize the sub-grading rotation of the bearing member (4) in the Z-axis direction; The sub-second adjustment component (3) is arranged on the upper part of the sub-second adjustment component (2), and its movable end moves along the X-axis direction of the carrier (4). By rotating the rotating wheel (31) at the fixed end of the sub-second adjustment component (3), the movable end of the sub-second adjustment component (3) drives one end of the carrier (4) to generate displacement in the Z-axis direction, so as to realize sub-second angle adjustment of the carrier (4) in the Z-axis direction.

2. The tilt adjustment device for sub-second precision adjustment according to claim 1, characterized in that: The sub-grading adjustment assembly (2) comprises a first fixing member (21), an intermediate plate (22), a Z-direction movable member (23), and a second fixing member (24) which are connected in sequence, wherein one end of the first fixing member (21) is fixed to the tilting adjustment platform (1), and the other end is connected to one end of the intermediate plate (22), and the other end of the intermediate plate (22) is sleeve-pressed and connected to the Z-direction movable member (23) so as to realize rotation in the Z-axis direction along with the Z-direction movable member (23); The lower portion of the second fixing member (24) is fixed to the middle plate (22), and the upper portion is fixedly connected to one end of the bearing member (4); the first fixing member (21), the second fixing member (24), the sub-second adjustment component (3), and the Z-direction movable member (23) are arranged in sequence along the length direction of the tilt adjustment platform (1).

3. The tilt adjustment device for sub-second precision adjustment according to claim 2, characterized in that: The first fixing member (21) comprises: a first fixing seat (211), a first rotating shaft (212), and a first connecting member (213); a plurality of first fixing seats (211) are provided and are arranged at intervals along the Y-axis direction of the tilting platform (1), so that the first rotating shaft (212) is supported on the tilting platform (1) through the plurality of first fixing seats (211); One end of the first connecting member (213) is sleeved on the first rotating shaft (212), and the other end is connected and fixed to the fixed end of the middle plate (22).

4. The tilt adjustment device for sub-second precision adjustment according to claim 3, characterized in that: The Z-direction movable member (23) comprises a screw rod (231), a nut (232), and a second connecting member (233); one end of the screw rod (231) is vertically fixed to the upper portion of the tilting platform (1); the nut (232) is threadedly connected to the screw rod (231); one end of the second connecting member (233) is fixedly connected to the intermediate plate (22); the other end of the second connecting member (233) is inserted into the screw rod (231) to abut against the upper end surface of the nut (232); the nut (232) is pulled to drive the side of the intermediate plate (22) connected thereto to be displaced in the Z-axis direction, so as to realize the sub-stage rotation of the bearing member (4) in the Z-axis direction.

5. The tilt adjustment device for sub-second precision adjustment according to claim 4, characterized in that: The Z-direction movable member (23) further comprises a gasket (234) fixedly connected to the upper end surface of the nut (232), and one end of the second connecting member (233) facing away from the middle plate (22) abuts against the upper end surface of the gasket (234).

6. The tilt adjustment device for sub-second precision adjustment according to claim 3, characterized in that: The second fixing member (24) comprises a second fixing seat (241), a third fixing seat (242), and a second rotating shaft (243); a plurality of the second fixing seats (241) and the third fixing seats (242) are provided and are spaced apart along the Y-axis direction of the middle plate (22), so that the second rotating shaft (243) is supported on the middle plate (22) through the plurality of the second fixing seats (241), and supports the upper bearing member (4) through the plurality of the third fixing seats (242); The first rotating shaft (212) and the second rotating shaft (243) are arranged in parallel.

7. The tilt adjustment device for sub-second precision adjustment according to claim 2, characterized in that: The sub-second adjustment assembly (3) further comprises a fourth fixing seat (32), a worm (33), a turbine (34), an eccentric wheel (35), and a top wedge assembly (36); the worm (33) is mounted on the intermediate plate (22) via the fourth fixing seat (32); the rotating wheel (31) is connected to one end of the worm (33) and rotates around the Y-axis direction of the intermediate plate (22); One side of the turbine (34) is gear-engaged with a spiral toothed ring (331) on the worm (33); the eccentric wheel (35) is disposed on the upper portion of the turbine (34) and is eccentrically fixed thereto; the rotation of the rotating wheel (31) sequentially drives the worm (33) and the turbine (34) to rotate, thereby causing the eccentric wheel (35) to push and pull the top wedge assembly (36) to move along the X-axis direction of the intermediate plate (22); One end of the carrier (4) is fixedly connected to the top wedge assembly (36), and the movement of the top wedge assembly (36) drives one end of the carrier (4) to be displaced in the Z-axis direction, so as to achieve sub-second rotation of the carrier (4) in the Z-axis direction.

8. The tilt adjustment device for sub-second precision adjustment according to claim 7, characterized in that: The top wedge assembly (36) comprises a third connecting member (361), a push-pull rod (362), a fifth fixing seat (363), a top wedge connecting member (364), a top wedge body (365), a lower fixing seat (366), and an upper fixing seat (367); the fifth fixing seat (363) and the lower fixing seat (366) are both fixed to the middle plate (22); the push-pull rod (362) is arranged on the fifth fixing seat (363), so that the third connecting member (361), the push-pull rod (362), the top wedge connecting member (364), and the top wedge body (365) are fixedly connected in sequence; The side of the third connecting member (361) facing away from the push-pull rod (362) is connected to the eccentric wheel (35), and the upper fixed seat (367) is fixedly connected to the supporting member (4) and arranged opposite to the lower fixed seat (366), so that the side of the top wedge body (365) facing away from the top wedge connecting member (364) is inserted into the gap between the upper fixed seat (367) and the lower fixed seat (366), and moves along the X-axis direction of the intermediate plate (22) under the drive of the push-pull rod (362), so that the supporting member (4) is displaced in the Z-axis direction, so as to realize the sub-second rotation of the supporting member (4) in the Z-axis direction.

9. The tilt adjustment device for sub-second precision adjustment according to claim 8, characterized in that: The longitudinal section of the top wedge body (365) is configured as a right-angled trapezoid, and the lower base of the right-angled trapezoid is located on one side of the top wedge connecting member (364).

10. The tilt adjustment device for sub-second precision adjustment according to claim 8, characterized in that: A roller (3661) is sleeved on the connecting shaft of the lower fixed seat (366), so that the lower part of the top wedge body (365) is placed on the roller (3661).

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