Three-axis rotary table

Abstract

The three-axis rotary table comprises a rotary table body, a two-dimensional fine adjustment device and a clamp mechanism, and the rotary table body is used for driving a device placed on the rotary table body to rotate; the two-dimensional fine adjustment device is arranged on the rotary table and used for adjusting the levelness of a device placed on the two-dimensional fine adjustment device; the clamp mechanism is arranged on the two-dimensional fine adjustment device and used for loading a user load, the clamp mechanism comprises a supporting frame, a sliding rail and a mounting plate, and the supporting frame is connected with the two-dimensional fine adjustment device; the first end of the sliding rail is rotationally connected with the supporting frame, the second end of the sliding rail is suspended, the first end of the sliding rail can rotate around a first axis relative to the supporting frame, and the first axis is parallel to the mounting surface of the rotary table; the mounting plate is arranged above the sliding rail and used for mounting a user load, the mounting plate is in sliding connection with the sliding rail, the mounting plate can rotate around a second axis relative to the sliding rail, and the second axis is parallel to the mounting surface of the rotary table and is perpendicular to the first axis.

Description

Technical Field

[0001] The present application relates to the field of aerospace device testing, and in particular to a three-axis turntable. Background Art

[0002] At present, compared with single-axis and dual-axis turntables, three-axis turntables can provide more complex and precise attitude adjustment and positioning, and have irreplaceable advantages in some application scenarios that require extremely high precision and stability. For example, in the fields of aerospace device testing and simulation, the application of three-axis turntables is becoming more and more extensive. With the increasing demand for high-precision attitude control equipment in related fields, the market share of three-axis non-magnetic turntables is expected to gradually expand. However, traditional three-axis turntables have the problems of large size and complex processing process.

[0003] There is an urgent need to develop a three-axis turntable to solve the problems of large size and complex usage process. Summary of the invention

[0004] The present application mainly provides a three-axis turntable which is small in size, simple to use, and can have a good use effect when applied.

[0005] In order to solve the above technical problems, the technical solution adopted in the present application is: to provide a three-axis turntable, which includes a turntable, a two-dimensional fine-tuning device and a clamping mechanism, wherein the turntable is used to drive the device placed on the turntable to rotate; the two-dimensional fine-tuning device is arranged on the turntable, and is used to adjust the horizontality of the device placed on the two-dimensional fine-tuning device; the clamping mechanism is arranged on the two-dimensional fine-tuning device, and is used to load the user load, and the clamping mechanism includes a support frame, a sliding rail and a mounting plate, wherein the support frame is connected to the two-dimensional fine-tuning device; the first end of the sliding rail is rotatably connected to the support frame, and the second end is suspended, wherein the first end of the sliding rail can rotate relative to the support frame around a first axis, and the first axis is parallel to the mounting surface of the turntable; the mounting plate is arranged above the sliding rail, and is used to install the user load, the mounting plate is slidably connected to the sliding rail, and the mounting plate can rotate relative to the sliding rail around a second axis, and the second axis is parallel to the mounting surface of the turntable and is perpendicular to the first axis.

[0006] In which, the support frame includes an arc-shaped connecting arm, the middle part of the arc-shaped connecting arm is connected to the two-dimensional fine-tuning device, and both ends are bent and extended in the direction away from the two-dimensional fine-tuning device; the sliding track includes a first arc-shaped member, a second arc-shaped member and a connecting section connecting the first arc-shaped member and the second arc-shaped member, the first arc-shaped member is located inside the arc-shaped connecting arm, and the two ends of the first arc-shaped member are respectively rotatably connected to the two ends of the arc-shaped connecting arm through a first rotating shaft, and the first rotating shaft extends along the first axis.

[0007] Wherein, both ends of the first arc-shaped member are provided with a first through hole, and both ends of the arc-shaped connecting arm are provided with a second through hole corresponding to the first through hole, and the first rotating shaft is inserted into the first through hole and the second through hole to realize the rotational connection between the first arc-shaped member and the arc-shaped connecting arm; at the same time, both ends of the first arc-shaped member are provided with a plurality of first positioning holes arranged around the first through hole, and both ends of the arc-shaped connecting arm are provided with a plurality of second positioning holes arranged around the second through hole, after the first arc-shaped member rotates to the first target position around the first axis relative to the support frame, the first locking member is inserted into the first positioning hole and the second positioning hole to lock the first arc-shaped member and the support frame.

[0008] Wherein, both ends of the first arc-shaped member are provided with a third through hole, and both ends of the arc-shaped connecting arm are provided with a fourth through hole corresponding to the third through hole. When in the zero position, the second locking member is inserted into the corresponding third through hole and the fourth through hole to lock the support frame and the first arc-shaped member.

[0009] The first arc-shaped member is provided with a first track groove, the second arc-shaped member is provided with a second track groove, a first slider is slidably arranged in the first track groove, a second slider is slidably arranged in the second track groove, and the first slider and the second slider are both fixedly connected to the mounting plate.

[0010] Among them, the first arc-shaped member is provided with a plurality of first locking holes, and the first slider is provided with a plurality of second locking holes corresponding to the plurality of first locking holes; the second arc-shaped member is provided with a plurality of third locking holes, and the second slider is provided with a plurality of fourth locking holes corresponding to the plurality of third locking holes; the plurality of first locking holes are located on the first arc, and the plurality of third locking holes are located on the second arc, and the line formed by the center of the first arc and the center of the second arc is parallel to the second axis; after the mounting plate rotates to the second target position around the second rotating shaft relative to the sliding track, the third locking member is inserted into the first locking hole and the second locking hole to lock the first arc-shaped member and the first slider; or the fourth locking member is inserted into the third locking hole and the fourth locking hole to lock the second arc-shaped member and the second slider.

[0011] The orthographic projections of the plurality of first locking holes and the plurality of third locking holes on the target plane are arranged at intervals and are located on the same arc, and the target plane is arranged perpendicular to the second axis.

[0012] In which, a deviation angle is formed between the first connecting line and the second connecting line, wherein the first connecting line is the center line of the first arc-shaped part passing through the center of the first arc, and the second connecting line is the connecting line formed by the center of the first arc and the first target locking hole, and the first target locking hole is the first locking hole closest to the first connecting line.

[0013] Wherein, the clamping mechanism also includes an auxiliary support rod, which is located below the sliding track, one end of which is rotatably connected to the sliding track, and the other end of which is rotatably connected to the two-dimensional fine-tuning device.

[0014] Wherein, both ends of the auxiliary support rod are rotatably connected to the sliding track and the two-dimensional fine-tuning device through a second rotating shaft, and the extension direction of the second rotating shaft is parallel to the first axis.

[0015] The beneficial effects of the present application are: in the three-axis turntable of the present application, the first end of the sliding track is rotatably connected to the support frame, and the second end is suspended. At this time, the second end is free, so that the first end of the sliding track can rotate around the first axis relative to the support frame to realize the pitch movement of the user load; the mounting plate is arranged above the sliding track for installing and fixing the user load, the mounting plate is slidably connected to the sliding track, and the mounting plate can rotate around the second axis relative to the sliding track to realize the rolling movement of the user load, which has the advantages of small size and simple use process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 This is a schematic structural diagram of an implementation method of a three-axis turntable in this application;

[0018] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of a transfer station according to an embodiment of the present invention;

[0019] Figure 3 for Figure 1 A schematic structural diagram of an implementation scheme of a transfer table and a two-position fine-tuning device.

[0020] Figure 4 for Figure 1 A schematic structural diagram of an embodiment of a middle clamp mechanism.

[0021] Figure 5 for Figure 4A structural schematic diagram of an implementation method of the upward tilting movement of the middle clamp mechanism;

[0022] Figure 6 for Figure 4 A structural schematic diagram of an implementation method of the downward movement of the middle clamp mechanism;

[0023] Figure 7 for Figure 1 A front view schematic diagram of the structure of an implementation method of the middle clamp mechanism cooperating with the user load.

[0024] Figure 8 for Figure 7 A structural schematic diagram of an implementation method of the middle clamp mechanism rolling to one side;

[0025] Fig. 9 for Figure 7 A structural schematic diagram of an implementation method of the middle clamp mechanism rolling to the other side;

[0026] Fig.10 for Figure 4 A structural schematic diagram of an implementation scheme of a first arc-shaped member in a clamp mechanism;

[0027] Fig.11 for Figure 7 A structural schematic diagram of an implementation scheme of a second arc-shaped member in a clamp mechanism;

[0028] Fig.12 for Figure 4 A schematic structural diagram of an embodiment of a middle clamp mechanism.

[0029] Description of reference numerals: 100 three-axis turntable; 1 turntable; 2 two-dimensional fine-tuning device; 3 clamp mechanism; 10 support frame; 11 arc-shaped connecting arm; 112 second positioning hole; 113 first locking member; 114 fourth through hole; 115 second locking member; 116 third locking member; 117 fourth locking member; 118 first connecting line; 119 second connecting line; 20 sliding track; 21 first end; 22 second end; 23 first arc-shaped member; 231 first rotating shaft; 232 first through hole; 233 first positioning hole; 234 second through hole; Three-way hole; 235 first track groove; 2361 first locking hole; 2362 first target locking hole; 24 second arc-shaped member; 241 second track groove; 242 second slider; 2421 fourth locking hole; 244 third locking hole; 25 connecting section; 30 mounting plate; 40 auxiliary support rod; 4 first axis; 5 second axis; 6 user load; 51 first locking screw; 52 second locking screw; 53 small bevel gear; 54 large bevel gear; 55 rotating shaft; 56 adjusting seat; X first direction; Y second direction. DETAILED DESCRIPTION

[0030] 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 ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0032] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The present application provides a three-axis turntable 100, which includes a turntable 1, a two-dimensional fine-tuning device 2 and a clamping mechanism 3, wherein the turntable 1 is used to drive the device placed on the turntable 1 to rotate; the two-dimensional fine-tuning device 2 is arranged on the turntable 1, and is used to adjust the horizontality of the device placed on the two-dimensional fine-tuning device 2; the clamping mechanism 3 is arranged on the two-dimensional fine-tuning device 2, and is used to load the user load 6, and the clamping mechanism 3 includes a support frame 10, a sliding rail 20 and a mounting plate 30, wherein the support frame 10 is connected to the two-dimensional fine-tuning device 2; the first end 21 of the sliding rail 20 is rotatably connected to the support frame 10, and the second end 22 is suspended, wherein the first end 21 of the sliding rail 20 can rotate relative to the support frame 10 around a first axis 4, and the first axis 4 is parallel to the mounting surface of the turntable 1; the mounting plate 30 is arranged above the sliding rail 20, and is used to install the user load 6, the mounting plate 30 is slidably connected to the sliding rail 20, and the mounting plate 30 can rotate relative to the sliding rail 20 around a second axis 5, and the second axis 5 is parallel to the mounting surface of the turntable 1 and is perpendicular to the first axis 4.

[0036] Specifically, the three-axis turntable 100 in the present application includes a three-axis non-magnetic turntable. In order to avoid interference with the magnetic measuring equipment, all components of the turntable 1 are made of non-magnetic materials, such as copper, aluminum, titanium, ceramics, etc. The relative magnetic permeability of these materials is close to 1, which can effectively reduce the distortion and interference of the magnetic field and ensure the stability and accuracy of the measurement environment.

[0037] In one embodiment, the turntable 1 includes a single-axis non-magnetic turntable. Specifically, all materials of the single-axis non-magnetic turntable are non-magnetic materials. The principle of material selection is that the material itself has no residual magnetism and the material is not easily magnetized after being stimulated by an external magnetic field. The main materials used are ZL104 aluminum alloy, 2A06 aluminum alloy, ZCuZn38Mn2Pb2 copper alloy, and QSn7-0.2 copper alloy. Specifically, the table top of the single-axis non-magnetic turntable is integrally processed and formed using 2A06 aluminum alloy, and the table body is cast and formed using ZL104 aluminum alloy. The material itself is non-magnetic and not easily magnetized. Other processed parts are processed and formed using non-magnetic materials such as ZCuZn38Mn2Pb2 copper alloy and QSn7-0.2 copper alloy. The bearing material is Si3N4 silicon nitride ceramic bearing. The rings and rolling elements of the ceramic bearing are made of all-ceramic materials. They have the characteristics of high temperature resistance, cold resistance, wear resistance, corrosion resistance, anti-magnetic and electrical insulation, oil-free self-lubrication, high speed, etc. They can be used in extremely harsh environments and special working conditions. Figure 2When the test element rotates to the required angle, the turntable 1 needs to be kept stationary. The first locking screw 51 and the second locking screw 52 are orthogonally arranged on the small bevel gear 53. When the turntable 1 stops, the friction between the first locking screw 51 and the second locking screw 52 and the small bevel gear 53 keeps the turntable 1 stationary. Specifically, after the first locking screw 51 and the second locking screw 52 are clamped, the small bevel gear 53 stops moving, and further stops the large bevel gear 54. The large bevel gear stops the rotation of the rotating shaft 55, and the turntable 1 is stationary.

[0038] In one embodiment, in combination Figure 3 The two-dimensional fine-tuning device 2 adopts a double-layer structure design, including multiple stacked adjustment disks, each layer adjusts the angle in one direction. Three evenly distributed adjustment seats 56 are arranged on each layer of adjustment disks. The two-dimensional fine-tuning device 2 is placed on the test bench. When installing, the adjustment disks of each layer are first adjusted to be horizontal. When adjusting, the angle in one direction can be adjusted by rotating an adjustment seat 56, and the adjustment range is 0 to 3°. Specifically, when adjusting the horizontality of the adjustment disk of the lower layer, the adjustment seat 56 located on the adjustment disk of the lower layer is controlled to adjust the horizontality of the adjustment disk of the lower layer along the first direction X; when adjusting the horizontality of the adjustment disk of the upper layer, the adjustment seat 56 located on the adjustment disk of the upper layer is controlled to adjust the horizontality of the adjustment disk of the upper layer along the second direction Y.

[0039] See also Figure 4 In one embodiment, the fixture mechanism 3 is arranged on the two-dimensional fine-tuning device 2, and is used to load the user load 6 and facilitate the three-axis movement of the user load 6. The fixture mechanism 3 not only ensures the fixation of the user load 6 on the single-axis non-magnetic turntable, but also enables the user load 6 to rotate a certain angle on the other two spatial coordinate axes different from the rotation axis of the single-axis non-magnetic turntable to achieve pitch and roll movements. The material of the fixture mechanism 3 is selected from non-magnetic copper alloy or aluminum alloy, which can not only ensure the non-magnetism of the entire system, but also have sufficient strength and rigidity to ensure the precision of the system. Specifically, the clamping mechanism 3 includes a support frame 10, a sliding rail 20 and a mounting plate 30, wherein the support frame 10 is connected to the two-dimensional fine-tuning device 2 to play a supporting role; the first end 21 of the sliding rail 20 is rotatably connected to the support frame 10, and the second end 22 is suspended. At this time, the second end 22 is free, so that the first end 21 of the sliding rail 20 can rotate around the first axis 4 relative to the support frame 10 to achieve the pitch movement of the user load 6; the mounting plate 30 is arranged above the sliding rail 20, for installing and fixing the user load 6, the mounting plate 30 is slidably connected to the sliding rail 20, and the mounting plate 30 can rotate around the second axis 5 relative to the sliding rail 20 to achieve the rolling movement of the user load 6, which has the advantages of small size and simple use process.

[0040] Please continue reading Figure 4The support frame 10 includes an arc-shaped connecting arm 11, the middle part of the arc-shaped connecting arm 11 is connected to the two-dimensional fine-tuning device 2, and the two ends of the arc-shaped connecting arm 11 are bent and extended in a direction away from the two-dimensional fine-tuning device 2; the sliding track 20 includes a first arc-shaped member 23, a second arc-shaped member 24 and a connecting section 25 connecting the first arc-shaped member 23 and the second arc-shaped member 24, the first arc-shaped member 23 is located inside the arc-shaped connecting arm 11, and the two ends of the first arc-shaped member 23 are rotatably connected to the two ends of the arc-shaped connecting arm 11 through a first rotating shaft 231, and the first rotating shaft 231 extends along the first axis 4.

[0041] Specifically, the arc-shaped connecting arm 11 is arranged on the side of the two-dimensional fine-tuning device 2 away from the turntable 1. At the same time, the middle part of the arc-shaped connecting arm 11 is connected to the two-dimensional fine-tuning device 2. The two ends of the arc-shaped connecting arm 11 extend in the direction away from the two-dimensional fine-tuning device 2, and the whole is arc-shaped. The first arc-shaped member 23 and the second arc-shaped member 24 in the sliding track 20 correspond to the two ends of the user load 6 respectively, and are used to carry the two ends of the user load 6. Among them, the first arc-shaped member 23 is located inside the arc-shaped connecting arm 11, and the two are rotatably connected. The two ends of the arc-shaped connecting arm 11 are rotatably connected through the first rotating shaft 231 and the two ends of the first arc-shaped member 23, and at the same time, there is a gap between the bottom of the arc-shaped connecting arm 11 and the bottom of the first arc-shaped member 23, which provides space for the pitch movement of the user load 6, so as to facilitate driving the user load 6 to perform pitch movement.

[0042] Please continue reading Figure 4 , both ends of the first arc-shaped member 23 are provided with a first through hole 232, both ends of the arc-shaped connecting arm 11 are provided with a second through hole (not shown) corresponding to the first through hole 232, and the first rotating shaft 231 is inserted into the first through hole 232 and the second through hole to realize the rotational connection between the first arc-shaped member 23 and the arc-shaped connecting arm 11. Specifically, the first rotating shaft 231 connects the arc-shaped connecting arm 11 and both ends of the first arc-shaped member 23. The first through hole 232 is located at both ends of the first arc-shaped member 23, and the second through hole is located at both ends of the arc-shaped connecting arm 11. After the first rotating shaft 231 passes through the first through hole 232 and the second through hole, the rotational connection between the first arc-shaped member 23 and the arc-shaped connecting arm 11 is realized.

[0043] At the same time, both ends of the first arc-shaped member 23 are provided with a plurality of first positioning holes 233 arranged around the first through hole 232, and both ends of the arc-shaped connecting arm 11 are provided with a plurality of second positioning holes 112 arranged around the second through hole. After the first arc-shaped member 23 rotates relative to the support frame 10 around the first axis 4 to the first target position, the first locking member 113 is inserted into the first positioning hole 233 and the second positioning hole 112 to lock the first arc-shaped member 23 with the support frame 10. Specifically, the pitching rotation angle of the user load 6 can be obtained by the position of the first locking member 113. After the first arc-shaped member 23 rotates to the first target position, the first positioning hole 233 in the first arc-shaped member 23 and the second positioning hole 112 of the arc-shaped connecting arm 11 are aligned, so that the first locking member 113 can simultaneously pass through the first positioning hole 233 and the second positioning hole 112 to achieve the locking of the first arc-shaped member 23 and the arc-shaped connecting arm 11.

[0044] Please continue reading Figure 4 , both ends of the first arc-shaped member 23 are provided with a third through hole 234, and both ends of the arc-shaped connecting arm 11 are provided with a fourth through hole 114 corresponding to the third through hole 234. When in the zero position, the second locking member 115 is inserted into the corresponding third through hole 234 and the fourth through hole 114 to lock the support frame 10 with the first arc-shaped member 23. At the zero position, the third through hole 234 in the first arc-shaped member 23 is connected to the fourth through hole 114 of the arc-shaped connecting arm 11, and the locking of the support frame 10 and the first arc-shaped member 23 is achieved by the second locking member 115. When the user load 6 needs to be pitched later, the second locking member 115 needs to be taken out first to achieve the pitching movement of the user load 6.

[0045] See also Figure 5 and Figure 6 When the clamp mechanism 3 drives the user load 6 to perform an upward movement, the movement pattern is as follows: Figure 5 As shown; when the clamp mechanism 3 drives the user load 6 to move downward, the movement form is as follows Figure 6 shown.

[0046] Please continue reading Figure 4 , Figure 7 , Figure 8 and Fig. 9The first arc-shaped member 23 is provided with a first track groove 235, and the second arc-shaped member 24 is provided with a second track groove 241. A first slider (not shown) is slidably provided in the first track groove 235, and a second slider 242 is slidably provided in the second track groove 241. Both the first slider and the second slider 242 are fixedly connected to the mounting plate 30. Specifically, the design of the fixed connection between the mounting plate 30 and the first slider and the second slider 242 facilitates the slider to drive the mounting plate 30 to move. At this time, since the user load 6 is fixedly connected to the mounting plate 30, the mounting plate 30 drives the user load 6 to perform a rolling motion when it moves. At the same time, the first slider slides in the first track groove 235, and the second slider 242 slides in the second track groove 241. The rolling motion of the user load 6 is realized by sliding the first slider and the second slider 242.

[0047] Please continue reading Figure 4 and Figure 7 The first arc-shaped member 23 is provided with a plurality of first locking holes 2361, and the first slider is provided with a plurality of second locking holes (not shown) corresponding to the plurality of first locking holes 2361; the second arc-shaped member 24 is provided with a plurality of third locking holes 244, and the second slider 242 is provided with a plurality of fourth locking holes 2421 corresponding to the plurality of third locking holes 244; after the user load 6 rolls a certain angle, the first locking hole 2361 will be aligned with the second locking hole, or the third locking hole 244 will be aligned with the fourth locking hole 2421.

[0048] In one embodiment, the plurality of first locking holes 2361 are located on the first arc, the plurality of third locking holes 244 are located on the second arc, and the line formed by the center of the first arc and the center of the second arc is parallel to the second axis 5. The orthographic projections of the first locking holes 2361 and the third locking holes 244 on the first arc-shaped member 23 are both located on the first arc.

[0049] Please continue reading Figure 4 and Figure 7 After the mounting plate 30 rotates relative to the sliding track 20 around the second rotation axis to the second target position, the third locking member 116 is inserted into the first locking hole 2361 and the second locking hole to lock the first arc member 23 with the first slider, or the fourth locking member 117 is inserted into the third locking hole 244 and the fourth locking hole 2421 to lock the second arc member 24 with the second slider 242. The first arc member 23 and the first slider are fixed in position by connecting the first locking hole 2361 and the second locking hole by the third locking member 116; or the second arc member 24 and the second slider 242 are fixed in position by connecting the third locking hole 244 and the fourth locking hole 2421 by the fourth locking member 117. The position of the user load 6 can be fixed by using at least one of the third locking member 116 and the fourth locking member 117.

[0050] See also Figure 7 , Fig.10 and Fig.11 The orthographic projections of the plurality of first locking holes 2361 and the plurality of third locking holes 244 on the target plane are arranged at intervals and are on the same arc, and the target plane is arranged perpendicular to the second axis 5. Specifically, the orthographic projections of the first locking holes 2361 and the third locking holes 244 on the target plane do not overlap, and the mounting plate 30 can be fixed by one of the first locking holes 2361 and the second locking holes.

[0051] Please continue reading Fig.10 and Fig.11 , a deviation angle is formed between the first connecting line 118 and the second connecting line 119, wherein the first connecting line 118 is the center line of the first arc-shaped member 23 passing through the center of the first arc, and the second connecting line 119 is the connecting line formed by the center of the first arc and the first target locking hole 2362, and the first target locking hole 2362 is the first locking hole 2361 closest to the first connecting line 118. Specifically, the first target locking hole 2362 is not arranged on the first connecting line 118, but has a certain deviation angle, so that the first locking hole 2361 and the third locking hole 244 have a deviation angle between the orthographic projection of the first arc-shaped member 23, and at this time, the first locking hole 2361 and the third locking hole 244 are not one-to-one corresponding, but correspond to different rolling angles, which is convenient for locking and processing.

[0052] In one embodiment, the deviation angle is 2.5°, so that when rotating 5°, it can be fixed through one of the first locking hole 2361 and the second locking hole, and when rotating 5° further, it can be fixed through the other of the first locking hole 2361 and the second locking hole. The user load in this application can achieve a roll angle of plus or minus 30°, and the design corresponding to the roll angle can also be changed according to the use needs.

[0053] See also Fig.12 The clamp mechanism 3 also includes an auxiliary support rod 40, which is located below the sliding track 20, one end of which is rotatably connected to the sliding track 20, and the other end of which is rotatably connected to the two-dimensional fine-tuning device 2. Specifically, since the first end 21 of the sliding track 20 is rotatably connected to the support frame 10, and the second end 22 is suspended, the second end 22 is designed to be free at this time. Through the design of the auxiliary support rod 40, the free end of the sliding track 20 can be effectively supported to ensure the stability of the entire structure. At the same time, one end of the auxiliary support rod 40 is rotatably connected to the two-dimensional fine-tuning device 2, and the position of the connection between the two is unchanged. Only the angle between the auxiliary support rod 40 and the two-dimensional fine-tuning device 2 will change with the pitch movement of the user load 6. The other end of the auxiliary support rod 40 is rotatably connected to the sliding track 20. When the user load 6 pitches, the relative position between the auxiliary support rod 40 and the sliding track 20 changes.

[0054] Please continue reading Fig.12 , both ends of the auxiliary support rod 40 are rotatably connected to the sliding track 20 and the two-dimensional fine-tuning device 2 through a second rotation axis (not shown), and the extension direction of the second rotation axis is parallel to the first axis 4. Specifically, the auxiliary support rod 40 is rotatably connected to the two-dimensional fine-tuning device 2, and the angle between the two will change with the pitch movement of the user load 6. The other end of the auxiliary support rod 40 is rotatably connected to the sliding track 20. At this time, the design of the second rotation axis facilitates the position fixation between the auxiliary support rod 40 and the sliding track 20, and the position fixation between the auxiliary support rod 40 and the sliding track 20 can be achieved by a locking screw.

[0055] When the user load 6 performs pitch motion, the required rotation angle range is -16° to 44°, and it needs to stop, position, and then test every 5°. The pitch angle of the user load 6 can also be changed according to the use requirements.

[0056] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A three-axis turntable, characterized in that: include: A turntable, used to drive a device placed on the turntable to rotate; A two-dimensional fine-tuning device, disposed on the turntable, for adjusting the level of a device placed on the two-dimensional fine-tuning device; A clamp mechanism is provided on the two-dimensional fine-tuning device and is used to load a user's load. The clamp mechanism comprises: A support frame connected to the two-dimensional fine-tuning device; A sliding track, the first end of which is rotatably connected to the support frame, and the second end of which is suspended, wherein the first end of the sliding track can rotate relative to the support frame around a first axis, and the first axis is parallel to the mounting surface of the turntable; A mounting plate is arranged above the sliding track and is used to mount the user load. The mounting plate is slidably connected to the sliding track and can rotate around a second axis relative to the sliding track. The second axis is parallel to the mounting surface of the turntable and is perpendicular to the first axis.

2. The three-axis turntable according to claim 1, characterized in that: The support frame comprises an arc-shaped connecting arm, the middle portion of the arc-shaped connecting arm is connected to the two-dimensional fine-tuning device, and both ends of the arc-shaped connecting arm are bent and extended in a direction away from the two-dimensional fine-tuning device; The sliding track includes a first arc-shaped member, a second arc-shaped member, and a connecting section connecting the first arc-shaped member and the second arc-shaped member. The first arc-shaped member is located inside the arc-shaped connecting arm, and the two ends of the first arc-shaped member are rotatably connected to the two ends of the arc-shaped connecting arm through a first rotating shaft, and the first rotating shaft extends along the first axis.

3. The three-axis turntable according to claim 2, characterized in that: Both ends of the first arc-shaped member are provided with a first through hole, and both ends of the arc-shaped connecting arm are provided with a second through hole corresponding to the first through hole, and the first rotating shaft is inserted into the first through hole and the second through hole to realize the rotation connection between the first arc-shaped member and the arc-shaped connecting arm; At the same time, both ends of the first arc-shaped member are provided with a plurality of first positioning holes arranged around the first through hole, and both ends of the arc-shaped connecting arm are provided with a plurality of second positioning holes arranged around the second through hole. After the first arc-shaped member is rotated to the first target position around the first axis relative to the support frame, the first locking member is inserted into the first positioning hole and the second positioning hole to lock the first arc-shaped member and the support frame.

4. The three-axis turntable according to claim 3, characterized in that: Both ends of the first arc-shaped member are provided with a third through hole, and both ends of the arc-shaped connecting arm are provided with a fourth through hole corresponding to the third through hole. When in the zero position, the second locking member is inserted into the corresponding third through hole and the fourth through hole to lock the support frame and the first arc-shaped member.

5. The three-axis turntable according to claim 2, characterized in that: The first arc-shaped member is provided with a first track groove, the second arc-shaped member is provided with a second track groove, a first slider is slidably arranged in the first track groove, a second slider is slidably arranged in the second track groove, and the first slider and the second slider are both fixedly connected to the mounting plate.

6. The three-axis turntable according to claim 5, characterized in that: The first arc-shaped member is provided with a plurality of first locking holes, and the first sliding block is provided with a plurality of second locking holes corresponding to the plurality of first locking holes; The second arc-shaped member is provided with a plurality of third locking holes, and the second sliding block is provided with a plurality of fourth locking holes corresponding to the plurality of third locking holes; A plurality of the first locking holes are located on a first arc, a plurality of the third locking holes are located on a second arc, and a line formed by a center of the first arc and a center of the second arc is parallel to the second axis; After the mounting plate rotates around the second axis to the second target position relative to the sliding track, the third locking member is inserted into the first locking hole and the second locking hole to lock the first arc-shaped member and the first slider; or the fourth locking member is inserted into the third locking hole and the fourth locking hole to lock the second arc-shaped member and the second slider.

7. The three-axis turntable according to claim 6, characterized in that: The orthographic projections of the plurality of first locking holes and the plurality of third locking holes on the target plane are arranged at intervals and are located on the same arc, and the target plane is arranged perpendicular to the second axis.

8. The three-axis turntable according to claim 7, characterized in that: A deviation angle is formed between the first connecting line and the second connecting line, wherein the first connecting line is the center line of the first arc-shaped member passing through the center of the first arc, and the second connecting line is the connecting line formed by the center of the first arc and the first target locking hole, and the first target locking hole is the first locking hole closest to the first connecting line.

9. The three-axis turntable according to claim 1, characterized in that: The clamp mechanism also includes: The auxiliary support rod is located below the sliding track, one end of which is rotatably connected to the sliding track, and the other end of which is rotatably connected to the two-dimensional fine-tuning device.

10. The three-axis turntable according to claim 9, characterized in that: Both ends of the auxiliary support rod are rotatably connected to the sliding track and the two-dimensional fine-tuning device via a second rotating shaft, and the extending direction of the second rotating shaft is parallel to the first axis.

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