Two-degree-of-freedom motion control device, surround camera device and quick-change thread structure

Abstract

The utility model provides a kind of two degrees of freedom motion control device, surround shooting device and quick-change thread structure, the motion control device includes guide assembly, first sliding assembly and first synchronous belt, first synchronous belt is sequentially contacted and connected first synchronous belt wheel group, fifth synchronous belt wheel group, third synchronous belt wheel group, fourth synchronous belt wheel group, sixth synchronous belt wheel group and second synchronous belt wheel group, realize the translation and rotation two degrees of freedom motion of load, device separates motor assembly and moving part, there is greater space arrangement speed reducer, improve the load capacity of whole device, and make its variable length section parallel to the direction of motion of synchronous belt, so that motion control is more accurate, the device can be applied to slide rail shooting, surround shooting, 3D printing motion control. For the device, quick-change thread structure is designed, so that the device can be flexibly installed on different support components, and adjustable support structure is also designed, so that the device can be stably placed on uneven surface.

Description

Technical Field

[0001] This utility model belongs to the field of motion control mechanical equipment technology, and particularly relates to a two-degree-of-freedom motion control device, a surround shooting device, and a quick-change thread structure. Background Technology

[0002] During video shooting, two-axis camera sliders that can drive the camera's translational and rotational movements are often used to achieve smooth camera movement. There is also a type of polar coordinate 3D printer, which includes a printing platform and is designed with similar devices to achieve coordinated control of the printing platform's rotational and translational movements. In addition, there is a type of rotating shooting platform on the market that enables surround shooting of the subject, but this type of rotating shooting platform usually only contains one degree of rotational freedom.

[0003] In the process of realizing this utility model, the inventors discovered that the existing technical solutions still have technical problems such as inconvenient adjustment, inaccurate movement, and poor load capacity. Utility Model Content

[0004] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a two-degree-of-freedom motion control device, a surround shooting device and a quick-change thread structure, which are in line with the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, in a first aspect, a two-degree-of-freedom motion control device is disclosed, characterized in that it includes a guide component, a first sliding component, and a first synchronous belt, wherein the first sliding component includes a rotating component, the first sliding component is slidably connected to the guide component, and the rotating component is rotatably connected to the main structure of the first sliding component.

[0006] The guiding assembly includes a first transmission mechanism and a second transmission mechanism. The first transmission mechanism includes a first synchronous pulley group and a second synchronous pulley group, and the second transmission mechanism includes a third synchronous pulley group and a fourth synchronous pulley group.

[0007] The first sliding component includes a fifth synchronous pulley group and a sixth synchronous pulley group, and the rotating component includes a synchronous pulley for outputting rotational motion. The fifth synchronous pulley group or the sixth synchronous pulley group includes the synchronous pulley for outputting rotational motion.

[0008] The first synchronous belt is a closed synchronous belt with the ends connected. The first synchronous belt sequentially contacts and connects the first synchronous belt pulley group, the fifth synchronous belt pulley group, the third synchronous belt pulley group, the fourth synchronous belt pulley group, the sixth synchronous belt pulley group, and the second synchronous belt pulley group to form the first transmission system.

[0009] In some feasible implementations, the sliding direction of the first sliding component relative to the guide component includes a first direction or a second direction, and the portion of the first synchronous belt connecting the first sliding component and the guide component consists of four variable-length segments. When the first sliding component slides to any position within its sliding range, the four variable-length segments of the first synchronous belt are always parallel to the first direction or the second direction.

[0010] In some feasible implementations, the first transmission mechanism includes a first torque control component group, and the second transmission mechanism includes a second torque control component group. Each of the first and second torque control component groups includes one or more torque control components. The first torque control component group is connected to any position of a first segment of the first synchronous belt via a synchronous pulley, and the second torque control component group is connected to any position of a second segment of the first synchronous belt via a synchronous pulley. The torque control component is a torque output element or a combination of a torque output element and a speed-changing mechanism. The torque output element is a motor and / or a damper.

[0011] In some feasible implementations, the guide assembly includes a third sliding assembly and a first adjusting bolt. The third sliding assembly is slidably connected to the guide assembly, and the first adjusting bolt is rotatably connected to the guide assembly. The first adjusting bolt is threadedly connected to the third sliding assembly, and the third sliding assembly is rotatably connected to one or more timing pulleys connected to the first timing belt. By rotating the first adjusting bolt relative to the third sliding assembly about the axis of the first adjusting bolt, the third sliding assembly is driven to slide, thereby changing the shape of the first timing belt, i.e., changing the total length of the first timing belt, and thus adjusting the tension of the first timing belt.

[0012] In some feasible implementations, the rotating assembly further includes a mounting platform directly connected to the synchronous pulley for outputting rotational motion. The mounting platform includes a double-ended bolt and a double-ended nut, with the threads at both ends of the double-ended bolt and nut having two different specifications. One end of the double-ended bolt passes through the main structure of the mounting platform and is connected to the double-ended nut, while the other end of the double-ended bolt is connected to the load. The connecting threads can be switched to the two different specifications.

[0013] In some feasible implementations, the first synchronous belt is a toothed synchronous belt, and the synchronous pulley connected to the torque control component and the synchronous pulley for outputting rotational motion are toothed synchronous pulleys, with the toothed synchronous belt meshing with the toothed synchronous pulley for transmission.

[0014] In some feasible implementations, the guiding component further includes a control component and a power supply, wherein the control component is connected to the torque control component and the power supply, respectively.

[0015] In some feasible implementations, the guide assembly is provided with at least one adjustable support structure, which includes a first bolt, an adjusting nut, and a support member. The head of the first bolt and the support member respectively mate with the cavity of the guide assembly, and the mate relationship can restrict the rotation of the first bolt and the support member relative to the guide assembly. The adjusting nut is in contact with the support surface of the guide assembly, and the adjusting nut is threadedly connected to the first bolt. The first bolt is connected to the support member. By rotating the adjusting nut relative to the first bolt, the length of the support member extending out of the guide assembly can be adjusted.

[0016] In some feasible implementations, a second sliding component is also included, which is slidably connected to the guide component.

[0017] In some feasible implementations, the second sliding component includes a locking structure comprising a second bolt and a second nut. The second bolt is connected to the cavity of the second sliding component, and the second nut is threadedly connected to the second bolt. The second nut is installed in the cavity of the guide component, and the cavity of the guide component can restrict the second nut from rotating about its threaded axis. By rotating the second bolt, the second nut is brought into contact with the cavity of the guide component, preventing the second sliding component from moving relative to the guide component, thus locking the second sliding component.

[0018] In some feasible implementations, the second sliding component includes a rotatable component, a first cavity, and a connecting surface. Two opposite points on the outer surface of the rotatable component are connected and form a rotation axis through the interior of the rotatable component. The rotatable component can rotate relative to the main structural component of the second sliding component around the rotation axis. The outer surface of the rotatable component is in contact with the inner surface of the first cavity, and the contact connection is used to uniformly transmit the connecting force. The rotating surface of the rotatable component is provided with two or more connecting threads of different specifications, and the connecting surface is provided with a first opening adapted to the connecting threads. By rotating the rotatable component, the connecting threads of different specifications can be switched to communicate with the first opening of the connecting surface, thereby enabling quick switching of thread specifications.

[0019] In some feasible implementations, a second synchronous belt is also included. The guide assembly has a seventh synchronous belt pulley group and an eighth synchronous belt pulley group at both ends. The second synchronous belt is fixedly connected to the first sliding assembly and the second sliding assembly, and the second synchronous belt is in contact with the seventh synchronous belt pulley group and the eighth synchronous belt pulley group, respectively.

[0020] The second synchronous belt connects the first sliding assembly, the seventh synchronous belt pulley group, the second sliding assembly, and the eighth synchronous belt pulley group in sequence to form a second transmission system.

[0021] The second sliding assembly includes one or more structures for adjusting the tension of the second synchronous belt. The structures for adjusting the tension of the second synchronous belt include a second adjusting bolt and a sliding member. The second adjusting bolt is threadedly connected to the main structure of the second sliding assembly, and the sliding member is slidably connected to the main structure of the second sliding assembly. The sliding member is in contact with the second synchronous belt and the second adjusting bolt. By rotating the second adjusting bolt relative to the second sliding assembly around the axis of the second adjusting bolt, the sliding member is driven to slide, thereby changing the shape of the second synchronous belt, that is, changing the total length of the second synchronous belt, thereby adjusting the tension of the second synchronous belt.

[0022] Secondly, a two-degree-of-freedom surround shooting device is disclosed, including the two-degree-of-freedom motion control device and a support component. The support component is fixedly connected to the rotation component of the motion control device, and the rotation component includes a placement component.

[0023] In some feasible implementations, the main structure of the rotating component is connected to the placement component via threads or suction cups.

[0024] Thirdly, a quick-change thread structure is disclosed, which can quickly switch thread specifications. It includes a rotatable component and a connected structural member. Two opposite points on the outer surface of the rotatable component are connected and form a rotation axis through the interior of the rotatable component. The rotatable component can rotate relative to the connected structural member around the rotation axis. The connected structural member includes a first cavity and a connecting surface. The outer surface of the rotatable component is in contact with the inner surface of the first cavity of the connected structural member. This contact connection is used to uniformly transmit the connecting force. The rotating surface of the rotatable component is provided with two or more connecting threads of different specifications. The connecting surface is provided with a first opening adapted to the connecting threads. By rotating the rotatable component, the different specifications of the connecting threads can be switched to communicate with the first opening of the connecting surface.

[0025] In some feasible implementations, the connected structural member further includes a second cavity, and the rotatable assembly includes a protruding structure that engages with the second cavity of the connected structural member, such that the rotatable assembly can only rotate about the rotation axis relative to the connected structural member.

[0026] Compared with existing technical solutions, the beneficial effects of this utility model include: the two-degree-of-freedom motion control device has precise motion process, large load capacity, is easy to carry, and can be switched to a two-degree-of-freedom surround shooting device. Attached Figure Description

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, and the advantages of the present invention in the above and / or other aspects will become clearer.

[0028] Figure 1 This is a perspective view of Embodiment 1 of this application: a two-degree-of-freedom motion control device;

[0029] Figure 2 yes Figure 1 A partially exploded view of the two-degree-of-freedom motion control device shown.

[0030] Figure 3 yes Figure 1 A partially exploded view of the two-degree-of-freedom motion control device shown.

[0031] Figure 4 yes Figure 1 A cross-sectional view of the first transmission system of the two-degree-of-freedom motion control device shown.

[0032] Figure 5 yes Figure 1 A cross-sectional view of the second transmission system of the two-degree-of-freedom motion control device shown;

[0033] Figure 6 yes Figure 4 A schematic diagram showing the first transmission system and its partial disassembly.

[0034] Figure 7 yes Figure 4 A schematic diagram of the internal structure of the first transmission system shown;

[0035] Figure 8 yes Figure 1 A schematic diagram and exploded view of the torque control component of the two-degree-of-freedom motion control device shown.

[0036] Figure 9 yes Figure 5 The diagram shows the second transmission system.

[0037] Figure 10 yes Figure 1 Cross-sectional view of the quick-change threaded structure of the two-degree-of-freedom motion control device shown.

[0038] Figure 11 yes Figure 10An exploded view of the rotatable component with a quick-change thread structure and a schematic diagram of the integrated rotatable component are shown.

[0039] Figure 12 yes Figure 1 A partial cross-sectional view of the first transmission system of the two-degree-of-freedom motion control device shown.

[0040] Figure 13 yes Figure 1 An exploded view of the tension adjustment mechanism of the first synchronous belt in the two-degree-of-freedom motion control device shown.

[0041] Figure 14 yes Figure 1 A cross-sectional schematic diagram of the tension adjustment mechanism of the second synchronous belt in the two-degree-of-freedom motion control device shown.

[0042] Figure 15 yes Figure 1 A schematic cross-sectional view of the adjustable support structure of the two-degree-of-freedom motion control device shown.

[0043] Figure 16 yes Figure 1 An exploded view of the adjustable support structure of the two-degree-of-freedom motion control device shown.

[0044] Figure 17 This is a perspective view of Embodiment 3 of this application: a two-degree-of-freedom motion control device;

[0045] Figure 18 yes Figure 17 A cross-sectional schematic diagram of the locking structure of the second sliding component of the two-degree-of-freedom motion control device shown.

[0046] Figure 19 yes Figure 17 An exploded view of the locking structure of the second sliding component of the two-degree-of-freedom motion control device shown.

[0047] Figure 20 This is a perspective view of Embodiment 2 of this application: a two-degree-of-freedom motion control device;

[0048] Figure 21 This is a perspective view of Embodiment 008 of this application: a surround-view imaging device;

[0049] Figure 22 yes Figure 21 A cross-sectional view of the threaded connection of a mounting component of a surround-shooting device is shown.

[0050] Figure 23 yes Figure 21 A cross-sectional view showing the suction cup connection method of a mounting component of a surround shooting device;

[0051] Figure 24 yes Figure 1 This illustrates an application scenario of a two-degree-of-freedom motion control device.

[0052] Figure 25 yes Figure 17 This illustrates an application scenario of a two-degree-of-freedom motion control device.

[0053] Figure 26 yes Figure 1 Another application scenario of the two-degree-of-freedom motion control device shown;

[0054] The attached figures are labeled as follows:

[0055] A two-degree-of-freedom motion control device 001, a two-degree-of-freedom motion control device 002, a two-degree-of-freedom motion control device 003, a two-degree-of-freedom surround shooting device 008, a guide assembly 100, a first sliding assembly 200, a pulley 201, a rotating assembly 230, a second sliding assembly 500, a power supply 140, a power supply component 150, a power supply interface 151, a control component 160, a first synchronous belt 401, a first segment 401a of the first synchronous belt, a second segment 401b of the first synchronous belt, a third segment 401c of the first synchronous belt, a fourth segment 401d of the first synchronous belt, a fifth segment 401e of the first synchronous belt, a sixth segment 401f of the first synchronous belt, a second synchronous belt 610, and a second synchronous belt... Section 611, Second section 612 of the second synchronous belt, Seventh synchronous pulley group 630, Eighth synchronous pulley group 640, First transmission system 400, First synchronous pulley group 410, Second synchronous pulley group 420, Third synchronous pulley group 430, Fourth synchronous pulley group 440, Fifth synchronous pulley group 450, Sixth synchronous pulley group 460, First transmission mechanism 470, Second transmission mechanism 480, First torque control component group 471, Second torque control component group 481, Toothed synchronous pulley of the first synchronous pulley group 411, Toothed synchronous pulley of the third synchronous pulley group 431, Synchronous pulley of the fourth synchronous pulley group 441, Synchronous pulley for outputting rotary motion 461, Torque control component 490, Torque output component 49 2. Transmission mechanism 491, second transmission system 600, connecting surface of second sliding assembly 507, first cavity of second sliding assembly 504, second cavity of second sliding assembly 505, rotatable assembly with quick-change thread structure 510, integrated rotatable assembly with quick-change thread structure 510-2, rotation axis of rotatable assembly 516, structural component of rotatable assembly 511, protruding structure of rotatable assembly 511a, first connecting thread of rotatable assembly 512, second connecting thread of rotatable assembly 513, third sliding assembly 130, first adjusting bolt 131, nut of third sliding assembly 132, first cavity of guide assembly 111, second cavity of guide assembly 112, lower structural component of third sliding assembly 133. The components include: upper structural member 134 of the third sliding assembly; foldable support structure 107; adjustable support structure 170; first bolt 171 of the adjustable support structure; adjusting nut 172 of the adjustable support structure; support member 173 of the adjustable support structure; third cavity 113 of the guide assembly; fourth cavity 114 of the guide assembly; support surface 115 of the guide assembly; nut 173a of the support member; structural member 173b of the support member; mounting platform 231; connecting base 232; double-ended bolt 235 of the rotating assembly; first fastener 233 of the rotating assembly; second fastener 234 of the rotating assembly; thrust bearing 252; radial bearing 253; limiting part 611a of the second synchronous belt; and limiting part 612a of the second synchronous belt.The adjustment structure includes a second adjusting bolt 521, a sliding component 522, a nut 523 of the second sliding assembly, a limiting component 524 of the second synchronous belt, a third cavity 525 of the second sliding assembly, a connecting thread 109 of the guide assembly, a second bolt 531 of the locking structure, a second nut 532 of the locking structure, a fourth cavity 533 of the second sliding assembly, a fifth cavity 116 of the guide assembly, a support component 004, a placement component 005, the subject 006, the shooting equipment 007, a suction cup 236, a double-ended nut 237, and a third fastener 041. Detailed Implementation

[0056] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0057] This application provides a two-degree-of-freedom motion control device that can be applied to the motion control of loads such as cameras and printing platforms of 3D printers.

[0058] A two-degree-of-freedom motion control device is provided in the accompanying drawings, with embodiments 1, 2, and 3 provided. Compared to embodiment 1, embodiment 2 lacks the second synchronous belt 610 and the second sliding assembly 500. Compared to embodiment 1, embodiment 3 lacks the second synchronous belt 610. The same structures in embodiments 1, 2, and 3 are uniformly described in this application. A quick-change threaded structure is provided in embodiment 1 of this application. Figure 10 , Figure 11 Provides a structural schematic diagram; an adjustable support structure, attached to this application. Figure 15 , Figure 16 Provides a structural schematic diagram; a sliding component locking structure for a sliding device, corresponding to Embodiment 2 of this application. Figure 18 and Figure 19 A structural schematic diagram is provided; this application provides embodiment 008 of a two-degree-of-freedom surround imaging device. Some optional embodiments are described in words only and are not provided with drawings.

[0059] In Examples 1, 2, and 3, combined with Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 17 , Figure 20As shown, a two-degree-of-freedom motion control device includes a guide assembly 100, a first sliding assembly 200, and a first synchronous belt 401. The first sliding assembly 200 includes a rotating assembly 230 and a pulley 201. The first sliding assembly 200 and the guide assembly 100 are slidably connected through a rolling connection between the pulley 201 and the V-groove of the guide assembly 100. The rotating assembly 230 is rotatably connected to the main structure of the first sliding assembly 200 through two thrust bearings 252 and one radial bearing 253.

[0060] In Examples 1, 2, and 3, combined with Figure 4 , Figure 6 As shown, the guide assembly 100 includes a first transmission mechanism 470 and a second transmission mechanism 480. The first transmission mechanism 470 includes a first synchronous pulley group 410 and a second synchronous pulley group 420; the second transmission mechanism 480 includes a third synchronous pulley group 430 and a fourth synchronous pulley group 440. Each of the synchronous pulley groups 410, 420, 430, and 440 includes two synchronous pulleys.

[0061] In Examples 1, 2, and 3, combined with Figure 4 , Figure 5 , Figure 7 As shown, the first sliding component 200 includes a fifth synchronous pulley group 450 and a sixth synchronous pulley group 460, and the rotating component 230 includes a synchronous pulley 461 for outputting rotational motion. The fifth synchronous pulley group 450 includes two synchronous pulleys, and the sixth synchronous pulley group 460 includes two synchronous pulleys and a synchronous pulley 461 for outputting rotational motion.

[0062] Optionally, the fifth synchronous pulley group 450 includes two synchronous pulleys and a synchronous pulley 461 for outputting rotational motion, and the sixth synchronous pulley group includes two synchronous pulleys.

[0063] In Examples 1, 2, and 3, combined with Figure 6 As shown, the first transmission mechanism 470, the second transmission mechanism 480 and the first sliding component 200 are connected by the first synchronous belt 401 to form the first transmission system 400.

[0064] In Examples 1, 2, and 3, combined with Figure 4 , Figure 6As shown, the first synchronous belt 401 contacts and connects to each synchronous pulley group in the following order: first synchronous pulley group 410, fifth synchronous pulley group 450, third synchronous pulley group 430, fourth synchronous pulley group 440, sixth synchronous pulley group 460, and second synchronous pulley group 420. The above connection is sequential, so any synchronous belt group can be placed first, and the order can be reversed.

[0065] like Figure 7 As shown, when the fifth synchronous pulley group 450 includes two synchronous pulleys and the sixth synchronous pulley group 460 includes two synchronous pulleys and a synchronous pulley 461 for outputting rotary motion, a section of the first synchronous belt 401 between the two synchronous pulleys of the fifth synchronous pulley group 450 is not connected to the synchronous pulley 461 for outputting rotary motion. Compared with the prior art, it is easier to assemble and adjust the tension of the first synchronous belt 401. In the prior art, the synchronous pulley 461 divides the first synchronous belt 401 into two isolated sections. When the synchronous pulley 461 is a toothed synchronous pulley, it is not convenient to adjust the length of the two isolated sections during assembly.

[0066] In Examples 1, 2, and 3, combined with Figure 1 , Figure 6 As shown, the sliding direction of the first sliding component 200 relative to the guide component 100 includes a first direction P or a second direction Q. The portion of the first synchronous belt 401 connecting the first sliding component 200 and the guide component 100 consists of four variable-length segments 401c, 401d, 401e, and 401f. When the first sliding component 200 slides to any position within its sliding range, the four variable-length segments 401c, 401d, 401e, and 401f of the first synchronous belt are always parallel to the first direction P or the second direction Q.

[0067] In Examples 1, 2, and 3, combined with Figure 4 , Figure 6 , Figure 7 As shown, the first transmission mechanism 470 includes a first torque control component group 471, and the second transmission mechanism 480 includes a second torque control component group 481. The first torque control component group 471 and the second torque control component group 481 each include one torque control component 490. The first torque control component group 471 is connected to the first section 401a of the first synchronous belt through the synchronous pulley 411 of the first synchronous pulley group 410, and the second torque control component group 481 is connected to the second section 401b of the first synchronous belt through the synchronous pulley 431 of the third synchronous pulley group 430.

[0068] Optionally, the first torque control component group 471 is connected to any position of the first segment 401a of the first synchronous belt via a synchronous pulley, and the second torque control component group 481 is connected to any position of the second segment 401b of the first synchronous belt via a synchronous pulley.

[0069] In Examples 1, 2, and 3, combined with Figure 8 As shown, the torque control component 490 is a combination of a torque output component 492 and a speed-changing mechanism 491. The torque output component 492 is a motor, and the speed-changing mechanism 491 is a gear reducer. Optionally, the speed-changing mechanism 491 can be a synchronous belt speed-changing mechanism, a worm gear reducer, a harmonic reducer, a cycloidal pinwheel reducer, etc. The speed-changing mechanism and its connection with the motor are existing technologies, and this embodiment of the present invention does not limit them. By adjusting the control circuit of the torque output component 492, the torque output component 492 can be adjusted to be a damper.

[0070] Optionally, the torque control component 490 is a torque output component 492, excluding the speed change mechanism 491, and the torque output component 492 is a motor or a damper.

[0071] In Examples 1, 2, and 3, combined with Figure 4 , Figure 12 , Figure 13 As shown, the guide assembly 100 includes a third sliding assembly 130 and a first adjusting bolt 131. The third sliding assembly 130 is slidably connected to the first cavity 111 of the guide assembly 100, and the first adjusting bolt 131 is rotatably connected to the second cavity 112 of the guide assembly 100. The third sliding assembly 130 includes a nut 132, and the first adjusting bolt 131 is threadedly connected to the nut 132, i.e., the first adjusting bolt 131 is threadedly connected to the third sliding assembly 130. The third sliding assembly 130 is rotatably connected to one of the synchronous pulleys 441 of the fourth synchronous pulley set 440. By rotating the first adjusting bolt 131 relative to the third sliding assembly 130 around the axis of the first adjusting bolt 131, the third sliding assembly 130 is driven to slide, changing the shape of the first synchronous belt 401, i.e., changing the total length of the first synchronous belt 401, thereby adjusting the tension of the first synchronous belt 401.

[0072] In Examples 1, 2, and 3, combined with Figure 5As shown, the rotating assembly 230 also includes a mounting platform 231. The rotating assembly 230 includes first fasteners 233. The mounting platform 231 is directly connected to the synchronous pulley 461 for outputting rotational motion through three first fasteners 233. The mounting platform 231 includes a double-ended bolt 235 and a double-ended nut 237. The thread sizes at both ends of the double-ended bolt 235 and the double-ended nut are 1 / 4 inch and 3 / 8 inch, respectively. One end of the double-ended bolt 235 passes through the main structure of the mounting platform 231 and is connected to the double-ended nut 237. The other end of the double-ended bolt 235 is connected to the load. The connected thread can be switched between 1 / 4 inch and 3 / 8 inch.

[0073] In Examples 1, 2, and 3, combined with Figure 4 , Figure 7 As shown, the first synchronous belt 401 is a toothed synchronous belt, and the synchronous pulleys 411 and 431 connected to the torque control component 490 and the synchronous pulley 461 used for outputting rotational motion are toothed synchronous pulleys. The first synchronous belt 401 meshes with the toothed synchronous pulleys 411, 431 and 461 for transmission.

[0074] In Examples 1, 2, and 3, combined with Figure 3 , Figure 16 As shown, the guide assembly 100 also includes a control assembly and a power supply 140. The control assembly includes a power supply component 150 and a control component 160. The control component 160 is electrically connected to the power supply component 150 and the torque control component 490, respectively. The power supply 140 is electrically connected to the power supply component 150. Optionally, the power supply component 150 can also be electrically connected to an external power supply through a power supply interface 151 or an external power supply cable.

[0075] In Examples 1, 2, and 3, combined with Figure 15 , Figure 16As shown, the guide assembly 100 is provided with two adjustable support structures 170 and two foldable support structures 107. Only the adjustable support structure 170 will be described here. The adjustable support structure 170 includes one supported structural member, which is the main structural member of the guide assembly 100. The adjustable support structure 170 also includes a first bolt 171, an adjusting nut 172, and a support member 173. The head cross-section of the first bolt 171 and the cross-section of the support member 173 are hexagonal. The head of the first bolt 171 and the support member 173... The first bolt 171 and the support member 173 respectively mate with the third cavity 113 and the fourth cavity 114 of the supported structural member. This mate restricts the rotation of the first bolt 171 and the support member 173 relative to the supported structural member. The adjusting nut 172 contacts the support surface 115 of the supported structural member and is threadedly connected to the first bolt 171. The first bolt 171 is connected to the support member 173. By rotating the adjusting nut 172 relative to the first bolt 171 about its own axis, the length of the support member 173 extending beyond the supported structural member can be adjusted. Specifically, the support member 173 includes a nut 173a and a structural member 173b, which are interference-fitted. The first bolt 171 is threadedly connected to the nut 173a, i.e., the first bolt 171 is threadedly connected to the support member 173.

[0076] Optionally, the support member 173 does not include a nut, and the first bolt 171 is interference-fitted to the support member 173.

[0077] In Examples 1 and 3, combined with Figure 1 , Figure 5 , Figure 9 , Figure 17 As shown, the two-degree-of-freedom motion control devices 001 and 003 further include a second sliding component 500. The second sliding component 500 includes a pulley. The second sliding component 500 is slidably connected to the guide component 100 through the rolling connection between the pulley and the V-groove of the guide component. The two-degree-of-freedom motion control devices 001 and 003 include a locking structure for the second sliding component 500.

[0078] In Examples 1 and 3, combined with Figure 18 and Figure 19As shown, the locking structure of the second sliding component 500 includes a second bolt 531 and a second nut 532. The second bolt 531 is connected to the cavity 533 of the second sliding component 500, and the second nut 532 is threadedly connected to the second bolt 531. The second nut 532 is installed in the cavity 116 of the guide component 100. The cavity 116 of the guide component 100 can restrict the second nut 532 from rotating around its thread axis. By rotating the second bolt 531, the second nut 532 is brought into contact with the cavity 116 of the guide component 100, so that the second sliding component 500 cannot move relative to the guide component 100, thus the second sliding component 500 is in a locked state.

[0079] Combination Figure 10 , Figure 11 As shown in Embodiments 1 and 3, the second sliding assembly 500 includes a rotatable assembly 510, a first cavity 504, and a connecting surface 507, which is the lower surface of the second sliding assembly. Two opposite points on the outer surface of the rotatable assembly 510 are connected to form a rotation axis 516 through the interior of the rotatable assembly 510, allowing the rotatable assembly 510 to rotate relative to the main structural component of the second sliding assembly 500 around the rotation axis 516. The rotatable assembly 510 includes a first connecting thread 512 and a second connecting thread 513, with dimensions of 1 / 4 inch and 3 / 8 inch respectively. The outer surface of the rotatable assembly 510 is in contact with the inner surface of the first cavity 504, and this contact connection is used to uniformly transmit the connecting force. The lower surface of the second sliding component is provided with a first opening adapted to the first connecting thread 512 and the second connecting thread 513. By rotating the rotatable component 510, the first connecting thread 512 can be switched to communicate with the first opening of the connecting surface 507, or the second connecting thread 513 can be switched to communicate with the first opening of the connecting surface 507. The first connecting thread 512 or the second connecting thread 513 is used to connect with... Figure 24 The connection of the middle support component 004 can be adapted to different support component 004 connection points by using different thread specifications.

[0080] Furthermore, the second sliding component 500 also includes a second cavity 505, and the rotatable component 510 includes two protruding structures 511a. The two protruding structures 511a cooperate with the second cavity 505 so that the rotatable component 510 can only rotate about the rotation axis 516 relative to the main structural component of the second sliding component 500, that is, the rotatable component 510 is rotatably connected to the main structural component of the second sliding component 500.

[0081] Specifically, the rotatable assembly 510 includes two structural members 511 and two flange nuts. Each structural member 511 includes a protruding structure 511a. The internal threads of the two flange nuts are the first connecting thread 512 and the second connecting thread 513, respectively. A portion of the outer surface of the structural member is spherical and contacts the first cavity 504. Optionally, as... Figure 11 As shown, the rotatable component is an integral structure 510-2, and its connection with the first cavity 504 is the same as described above.

[0082] In Example 1, combined with Figure 1 , Figure 5 , Figure 9 As shown, the two-degree-of-freedom motion control device 001 further includes a second synchronous belt 610, which includes a first segment 611 and a second segment 612. The guide assembly 100 includes a seventh synchronous belt pulley group 630 and an eighth synchronous belt pulley group 640 at both ends. The second synchronous belt 610 is fixedly connected to the first sliding assembly 200 and the second sliding assembly 500, respectively. The second synchronous belt 610 is in contact with the seventh synchronous belt pulley group 630 and the eighth synchronous belt pulley group 640, respectively. Specifically, the second synchronous belt 610 is connected to the first sliding assembly 200 through limiting parts 611a and 612a, and the second synchronous belt 610 is connected to the second sliding assembly 500 through limiting part 524.

[0083] In Example 1, combined with Figure 5 , Figure 9 As shown, the second synchronous belt 610 connects the first sliding component 200, the second sliding component 500, the seventh synchronous pulley group 630, and the eighth synchronous pulley group 640 in sequence to form the second transmission system 600. The connection order of the components in the second transmission system 600, excluding the synchronous belt, is: first sliding component 200, seventh synchronous pulley group 630, second sliding component 500, and eighth synchronous pulley group 640. Since the above connection is sequential, any component can be placed first, and the order can be reversed.

[0084] In Example 1, combined with Figure 5 , Figure 14As shown, the second sliding assembly 500 includes two structures for adjusting the tension of the second synchronous belt 610. Only one of these structures will be described here. The adjusting structure includes a second adjusting bolt 521 and a sliding member 522. The second sliding assembly 500 includes a nut 523. The second adjusting bolt 521 is threadedly connected to the nut 523, meaning the second adjusting bolt 521 is threadedly connected to the main structure of the second sliding assembly 500. The sliding member 522 is slidably connected to the third cavity 525 of the second sliding assembly 500. The sliding member 522 is in contact with the second synchronous belt 610 and the second adjusting bolt 521. By rotating the second adjusting bolt 521 relative to the second sliding assembly 500 around its axis, the sliding member 522 is driven to slide, thereby changing the shape of the second synchronous belt 610, i.e., changing the total length of the second synchronous belt 610, ultimately achieving the effect of adjusting the tension of the second synchronous belt 610.

[0085] Combination Figure 21 , Figure 22 and Figure 23 As shown, the rotating component 230 of the two-degree-of-freedom motion control device 002 includes a base 232. The base 232 is connected to the main structure of the rotating component 230 via three second fasteners 234. A two-degree-of-freedom surround shooting device 008 includes the two-degree-of-freedom motion control device 002 and a support component 004. The support component 004 includes a third fastener 041. The upper surface of the support component 004 contacts the lower surface of the base 232. The third fastener 041 of the support component 004 is connected to the double-headed nut 237 of the rotating component 230, thus realizing the support component... 004 is fixedly connected to the rotating component 230, which includes a placement component 005 on which the subject 006 is placed. A shooting device 007 is mounted at the end of the guide component 100. The surround shooting device 008 can perform surround shooting of the subject 006. In the surround shooting device 008, the rotating component 230 becomes a fixed structure, and the guide component becomes a moving structure, realizing corresponding translational and rotational movements. Compared to existing surround shooting platforms, this surround shooting platform has two degrees of freedom, allowing for more complex camera movements. For example... Figure 22 As shown, the main structure of the rotating assembly 230 is connected to the storage component 005 via bolts 235. Optionally, as... Figure 23 As shown, the rotating component 230 includes a suction cup 236. The main structure of the rotating component 230 is connected to the placement component 005 via the suction cup 236. If a suction cup is used for connection, the placement component can be flexibly replaced, such as a plate, a cup, an acrylic plate, etc.

[0086] Combination Figure 24 As shown, the second sliding component 500 of the two-degree-of-freedom motion control device 001 is bolted to the support component 004. An imaging device 007 is mounted on the rotating component 230 of the two-degree-of-freedom motion control device 001, enabling a sliding rail imaging function. If the maximum sliding distance of the first sliding component 230 relative to the guide component is d, the maximum sliding distance of the imaging device in this scheme is 2d.

[0087] Combination Figure 25 As shown, the second sliding component 500 of the two-degree-of-freedom motion control device 003 is bolted to the support component 004. The second sliding component 500 is locked in the middle of the sliding stroke by the locking structure. An imaging device 007 is mounted on the rotating component 230 of the two-degree-of-freedom motion control device 003, enabling a sliding rail imaging function. If the maximum sliding distance of the first sliding component 230 relative to the guide component is d, the maximum sliding distance of the imaging device in this scheme is also d. Compared to this scheme... Figure 24 Although the maximum sliding distance is reduced to half, the proposed solution has a greater load-bearing capacity.

[0088] Combination Figure 26 As shown, the connecting thread 109 at the end of the guide component 100 of the two-degree-of-freedom motion control device 001 is bolted to the support component 004. The shooting device 007 is installed on the rotating component 230 of the two-degree-of-freedom motion control device 001, which can realize the vertical sliding rail shooting function.

[0089] Another embodiment of this application discloses a quick-change thread structure that can quickly switch thread specifications. It includes a rotatable component 510 and a connected structural member. Two opposite points on the outer surface of the rotatable component 510 are connected, forming a rotation axis 516 through the interior of the rotatable component 510. The rotatable component 510 rotates relative to the connected structural member around the rotation axis 516. The connected structural member includes a first cavity 504 and a connecting surface 507. The outer surface of the rotatable component 510 is in contact with the inner surface of the first cavity 504 of the connected structural member, and this contact connection is used to uniformly transmit the connecting force. The rotating surface of the rotatable component 510 is provided with two or more connecting threads of different specifications. The connecting surface 507 is provided with a first opening adapted to the connecting threads. By rotating the rotatable component 510, the different specifications of the connecting threads can be switched to communicate with the first opening of the connecting surface 507. The connecting threads can be threaded holes or external threads.

[0090] This utility model provides a concept and method for a two-degree-of-freedom motion control device, a surround shooting device, and a quick-change threaded structure. Many methods and approaches exist for implementing this technical solution; the above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A two-degree-of-freedom motion control device, characterized in that, It includes a guide assembly (100), a first sliding assembly (200), and a first synchronous belt (401). The first sliding assembly (200) includes a rotating assembly (230). The first sliding assembly (200) is slidably connected to the guide assembly (100), and the rotating assembly (230) is rotatably connected to the main structure of the first sliding assembly (200). The guide assembly (100) includes a first transmission mechanism (470) and a second transmission mechanism (480). The first transmission mechanism (470) includes a first synchronous pulley group (410) and a second synchronous pulley group (420). The second transmission mechanism (480) includes a third synchronous pulley group (430) and a fourth synchronous pulley group (440). The first sliding assembly (200) includes a fifth synchronous pulley group (450) and a sixth synchronous pulley group (460), and the rotating assembly (230) includes a synchronous pulley (461) for outputting rotational motion. The fifth synchronous pulley group (450) or the sixth synchronous pulley group (460) includes the synchronous pulley (461) for outputting rotational motion. The first synchronous belt (401) is a closed synchronous belt with the ends connected. The first synchronous belt (401) sequentially contacts and connects the first synchronous pulley group (410), the fifth synchronous pulley group (450), the third synchronous pulley group (430), the fourth synchronous pulley group (440), the sixth synchronous pulley group (460), and the second synchronous pulley group (420) to form the first transmission system (400).

2. The two-degree-of-freedom motion control device according to claim 1, characterized in that, The sliding direction of the first sliding component (200) relative to the guide component (100) includes a first direction or a second direction. The portion of the first synchronous belt (401) connecting the first sliding component (200) and the guide component (100) consists of four variable-length segments. When the first sliding component (200) slides to any position within the sliding range, the four variable-length segments of the first synchronous belt are always parallel to the first direction or the second direction.

3. The two-degree-of-freedom motion control device according to claim 1, characterized in that, The first transmission mechanism (470) includes a first torque control component group (471), and the second transmission mechanism (480) includes a second torque control component group (481). The first torque control component group (471) and the second torque control component group (481) each include one or more torque control components (490). The first torque control component group (471) is connected to any position of the first segment of the first synchronous belt (401) via a synchronous pulley, and the second torque control component group (481) is connected to any position of the second segment of the first synchronous belt (401) via a synchronous pulley. The torque control component (490) is a torque output component (492) or a combination of a torque output component (492) and a speed change mechanism (491). The torque output component (492) is a motor and / or a damper.

4. A two-degree-of-freedom motion control device according to claim 1, characterized in that, The guide assembly (100) includes a third sliding assembly (130) and a first adjusting bolt (131). The third sliding assembly (130) is slidably connected to the guide assembly (100), and the first adjusting bolt (131) is rotatably connected to the guide assembly (100). The first adjusting bolt (131) is threadedly connected to the third sliding assembly (130). The third sliding assembly (130) is rotatably connected to one or more timing pulleys connected to the first timing belt (401). By rotating the first adjusting bolt (131) relative to the third sliding assembly (130) around the axis of the first adjusting bolt (131), the third sliding assembly (130) is driven to slide, thereby changing the shape of the first timing belt (401), that is, changing the total length of the first timing belt (401), thereby adjusting the tension of the first timing belt (401).

5. A two-degree-of-freedom motion control device according to claim 1, characterized in that, The rotating assembly (230) also includes a mounting platform (231), which is directly connected to the synchronous pulley (461) for outputting rotational motion. The mounting platform (231) includes a double-ended bolt (235) and a double-ended nut (237). The threads at both ends of the double-ended bolt (235) and the double-ended nut (237) include two different sizes. One end of the double-ended bolt (235) passes through the main structure of the mounting platform (231) and is connected to the double-ended nut (237). The other end of the double-ended bolt (235) is connected to the load. The connected threads can be switched to the two different sizes.

6. A two-degree-of-freedom motion control device according to claim 3, characterized in that, The first synchronous belt (401) is a toothed synchronous belt, the synchronous pulley connected to the torque control component (490) and the synchronous pulley (461) for outputting rotational motion are toothed synchronous pulleys, and the toothed synchronous belt meshes with the toothed synchronous pulley for transmission.

7. A two-degree-of-freedom motion control device according to claim 1, characterized in that, The guide assembly (100) is provided with at least one adjustable support structure (170). The adjustable support structure (170) includes a first bolt (171), an adjusting nut (172), and a support member (173). The head of the first bolt (171) and the support member (173) respectively engage with the cavity of the guide assembly (100). The engagement relationship can restrict the first bolt (171) and the support member (173) from rotating relative to the guide assembly (100). The adjusting nut (172) is in contact with the support surface of the guide assembly (100). The adjusting nut (172) is threadedly connected to the first bolt (171). The first bolt (171) is connected to the support member (173). By rotating the adjusting nut (172) relative to the first bolt (171), the length of the support member (173) extending out of the guide assembly (100) can be adjusted.

8. A two-degree-of-freedom motion control device according to claim 1, characterized in that, It also includes a second sliding component (500), which is slidably connected to the guide component (100).

9. A two-degree-of-freedom motion control device according to claim 8, characterized in that, The second sliding assembly (500) includes a locking structure comprising a second bolt (531) and a second nut (532). The second bolt (531) is connected to the cavity of the second sliding assembly (500), and the second nut (532) is threadedly connected to the second bolt (531). The second nut (532) is installed in the cavity of the guide assembly (100). The cavity of the guide assembly (100) can restrict the second nut (532) from rotating about its thread axis. By rotating the second bolt (531), the second nut (532) is made to contact the cavity of the guide assembly (100), so that the second sliding assembly (500) cannot move relative to the guide assembly (100), thus making the second sliding assembly (500) locked.

10. A two-degree-of-freedom motion control device according to claim 8, characterized in that, The second sliding component (500) includes a rotatable component (510), a first cavity (504), and a connecting surface (507). Two opposite points on the outer surface of the rotatable component (510) are connected and form a rotation axis (516) through the interior of the rotatable component (510). The rotatable component (510) can rotate relative to the main structural component of the second sliding component (500) around the rotation axis (516). The outer surface of the rotatable component (510) is in contact with the inner surface of the first cavity (504). The contact connection is used to uniformly transmit the connecting force. The rotating surface of the rotatable component (510) is provided with two or more connecting threads of different specifications. The connecting surface (507) is provided with a first opening adapted to the connecting threads. By rotating the rotatable component (510), the connecting threads of different specifications can be switched to communicate with the first opening of the connecting surface (507).

11. A two-degree-of-freedom motion control device according to any one of claims 9 or 10, characterized in that, It also includes a second synchronous belt (610), and the guide assembly (100) includes a seventh synchronous belt pulley group (630) and an eighth synchronous belt pulley group (640) at both ends. The second synchronous belt (610) is fixedly connected to the first sliding assembly (200) and the second sliding assembly (500), and the second synchronous belt (610) is in contact with the seventh synchronous belt pulley group (630) and the eighth synchronous belt pulley group (640). The second synchronous belt (610) sequentially connects the first sliding assembly (200), the seventh synchronous belt pulley group (630), the second sliding assembly (500), and the eighth synchronous belt pulley group (640) to form the second transmission system (600). The second sliding assembly (500) includes one or more structures for adjusting the tension of the second synchronous belt (610). The structures for adjusting the tension of the second synchronous belt (610) include a second adjusting bolt (521) and a sliding member (522). The second adjusting bolt (521) is threadedly connected to the main body structure of the second sliding assembly (500). The sliding member (522) is slidably connected to the main body structure of the second sliding assembly (500). The sliding member (522) is in contact with the second synchronous belt (610) and the second adjusting bolt (521). By rotating the second adjusting bolt (521) relative to the second sliding assembly (500) around the axis of the second adjusting bolt (521), the sliding member (522) is driven to slide, thereby changing the shape of the second synchronous belt (610), that is, changing the total length of the second synchronous belt (610), thereby adjusting the tension of the second synchronous belt (610).

12. A two-degree-of-freedom orbital imaging device, characterized in that, The device includes a two-degree-of-freedom motion control device and a support component (004) as described in any one of claims 1-7, wherein the support component (004) is fixedly connected to the rotating assembly (230) of the motion control device, and the rotating assembly (230) includes a placement component (005).

13. A two-degree-of-freedom surround shooting device according to claim 12, characterized in that, The main structure of the rotating component (230) is connected to the placement component (005) by threads or suction cups.

14. A quick-change threaded structure, characterized in that, The assembly includes a rotatable component (510) and a connected structural member. Two opposite points on the outer surface of the rotatable component (510) are connected to form a rotation axis (516) through the interior of the rotatable component (510). The rotatable component (510) can rotate relative to the connected structural member around the rotation axis (516). The connected structural member includes a first cavity (504) and a connecting surface (507). The outer surface of the rotatable component (510) is in contact with the inner surface of the first cavity (504) of the connected structural member. The contact connection is used to uniformly transmit the connecting force. The rotatable component (510) has two or more connecting threads of different specifications. The connecting surface (507) has a first opening adapted to the connecting threads. By rotating the rotatable component (510), the connecting threads of different specifications can be switched to communicate with the first opening of the connecting surface (507).

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