Novel multi-degree-of-freedom movable platform

Abstract

The utility model discloses a novel multi-degree-of-freedom movable platform which comprises a static platform, a plurality of linear sliding tables are installed on the static platform, and lead screw nuts are installed on the linear sliding tables in a sliding mode. According to the platform, six-degree-of-freedom (front-and-back, left-and-right, up-and-down, pitching, rolling and twisting) movement is achieved, the platform is a basic movement base, and any riding carrier or exhibition appliance can be installed on the movable platform according to needs. The mechanism is different from an existing mechanism driven by a telescopic cylinder (an electric cylinder, an air cylinder, a hydraulic cylinder and the like) or a rotating arm in the market, due to the fact that a horizontal sliding driving unit is adopted, limitation of a mechanism unit in the vertical direction is avoided, and the platform has the biggest advantage of being low in height and can adapt to scenes with strict requirements for the height; and the application range of movable platform products is expanded.

Description

Technical Field

[0001] This utility model relates to the field of multi-degree-of-freedom activity platform technology, specifically a novel multi-degree-of-freedom activity platform. Background Technology

[0002] A multi-degree-of-freedom (DOF) motion platform, also known as a six-degree-of-freedom (SDOF) motion platform, is a high-tech simulation device. It mainly consists of multiple electric cylinders (or pneumatic cylinders), six universal hinges on both the upper and lower sides, and two platforms. The lower platform is fixed to a foundation. Through the extension and retraction of the electric cylinders (or pneumatic cylinders), the platform moves in multiple degrees of freedom in space, thus simulating various spatial motion postures. In summary, the multi-degree-of-freedom motion platform is a high-tech simulation device integrating mechanical, hydraulic, electrical, control, computer, and sensor technologies. It has broad application prospects and huge market potential in multiple fields.

[0003] In the prior art, when using a multi-freedom pair mobile platform, due to the inherent design constraints of the mechanical structure, the platform has a high headroom (or geometric height) and a non-ideal center of gravity distribution, which leads to significant limitations in its adaptability to working conditions in engineering application scenarios.

[0004] Therefore, a novel multi-degree-of-freedom activity platform is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a novel multi-degree-of-freedom activity platform to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel multi-degree-of-freedom moving platform, comprising a static platform, on which multiple linear slides are mounted, a lead screw nut is slidably mounted on the linear slides, a connecting rod bracket is mounted on the lead screw nut by bolts, a connecting rod is rotatably mounted on the connecting rod bracket, an upper connecting frame is rotatably mounted on the other end of the connecting rod, a moving platform is mounted on the upper connecting frame by bolts, and an accordion cover is mounted on the bottom side of the moving platform, the accordion cover is mounted on the static platform.

[0007] Preferably, a lead screw is threaded onto the lead screw nut, and the lead screw is rotatably mounted on a linear slide.

[0008] Preferably, the static platform is equipped with multiple unit drive motors, and a transmission component is sleeved on the output end of the unit drive motor, with the other end of the transmission component sleeved on one end of the lead screw.

[0009] Preferably, multiple power signal interfaces are installed on one side of the static platform, and the multiple power signal interfaces are electrically connected to multiple unit drive motors via cables.

[0010] Preferably, a blocking plug is connected to the power signal interface via a limiting band, and the blocking plug is movably inserted into the power signal interface.

[0011] Preferably, multiple cooling fans are installed on the static platform, and multiple ventilation holes are opened on the static platform. The cooling fans are adapted to the ventilation holes, and the cooling fans are electrically connected to the power signal interface.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model describes a platform that uses a motor-driven mechanical device to propel a moving platform in controlled motion in space, achieving 6 degrees of freedom (forward, backward, left, right, up, down, pitch, roll, and twist). The platform serves as the basic motion base, and any vehicle or performance equipment can be installed on the moving platform as needed.

[0014] The innovation of this utility model lies in the parallel robot mechanism driven by a linear slide table. This mechanism differs from existing mechanisms on the market that are driven by telescopic cylinders (electric cylinders, pneumatic cylinders, hydraulic cylinders, etc.) or rotating two-section linkages. Thanks to the use of a horizontal sliding drive unit, there are no vertical mechanism unit limitations. The platform's low height is its biggest advantage, making it suitable for scenarios with strict height requirements. At the same time, due to its low center of gravity, it does not require the chassis stabilization mechanism of other types of platforms, simplifying the complexity of the platform mechanism and increasing the application breadth of mobile platform products. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the static platform of this utility model;

[0017] Figure 3 This is a schematic diagram of the midpoint structure of the moving platform of this utility model;

[0018] Figure 4 This is a schematic diagram of the rotation and translation structure of the moving platform of this utility model;

[0019] Figure 5 This is a schematic diagram of the highest point structure of the moving platform of this utility model;

[0020] Figure 6 This is a schematic diagram of the connection structure of the connecting rod, upper connecting frame and moving platform of this utility model;

[0021] Figure 7 This is a schematic diagram of the present invention;

[0022] In the diagram: 1. Static platform; 2. Bellows cover; 3. Moving platform; 4. Cooling fan; 5. Power signal interface; 6. Isolation plug; 7. Linear slide; 8. Lead screw; 9. Lead screw nut; 10. Connecting rod bracket; 11. Connecting rod; 12. Upper connecting frame; 13. Unit drive motor; 14. Transmission assembly. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figure 1-7 This utility model provides a technical solution: a novel multi-degree-of-freedom moving platform, including a static platform 1, on which multiple linear slides 7 are mounted, and a lead screw nut 9 is slidably mounted on the linear slides 7. A connecting rod bracket 10 is bolted to the lead screw nut 9, and a connecting rod 11 is rotatably mounted on the connecting rod bracket 10. An upper connecting frame 12 is rotatably mounted on the other end of the connecting rod 11. A moving platform 3 is bolted to the upper connecting frame 12, and a bellows cover 2 is mounted on the bottom side of the moving platform 3. The bellows cover 2 is mounted on the static platform 1. A lead screw 8 is threaded onto the lead screw nut 9 and rotatably mounted on the linear slides 7. Multiple unit drive motors 13 are mounted on the static platform 1, and a transmission assembly 14 is sleeved on the output end of the unit drive motor 13. The other end of the transmission assembly 14 is sleeved on one end of the lead screw 8. Multiple power signal interfaces 5 are mounted on one side of the static platform 1, and the multiple power signal interfaces 5 are electrically connected to the multiple unit drive motors 13 through cables. A limit band is connected to the power signal interfaces 5. Isolator 6 is movably plugged into power signal interface 5. The platform can be designed and arranged with at least 6 sets of horizontal sliding mechanism units according to the requirements of load capacity, running speed, stroke range, external size, maximum power, etc., to form a stable mechanical balance structure. The target position (front and back, left and right, up and down) and attitude (pitch, roll, torsion) data are analyzed by the spatial inverse solution unit to obtain the target position of the linear slide table 7. Then, the target position is analyzed by the motion unit to obtain the absolute position of the motor target. Then, the motor 13 is driven to rotate by the motion unit, which in turn drives the lead screw 8, which is driven by the transmission component 14, to rotate. Then, the lead screw nut 9 moves linearly to reach the target position. At the same time, the two ends of the connecting rod 11 unit are universal joint bearings. One end is connected to the moving platform 3 and the other end is connected to the lead screw nut 9. When the lead screw nut 9 moves to the target position, the connecting rod 11 will drive the connection point of the moving platform 3 to the new spatial position. All the connecting rods work together under the same principle to achieve the position and attitude target.

[0025] Furthermore, multiple cooling fans 4 are installed on the static platform 1, and multiple ventilation holes are opened on the static platform 1. The cooling fans 4 are adapted to the ventilation holes, and the cooling fans 4 are electrically connected to the power signal interface 5. During the operation of various components in the static platform 1, the cooling fans 4 are powered by an external power supply. At this time, the switch on the cooling fan 4 is turned on, which can conveniently and quickly exhaust the heat generated by various components in the static platform 1 to the outside of the static platform 1. At the same time, the ventilation holes on the static platform 1 can effectively accelerate the air flow in the static platform 1, thereby achieving the cooling treatment of various components in the static platform 1 during operation.

[0026] The working principle is as follows: When the stationary platform 1 is in use, if it is necessary to raise the moving platform 3, simply open the blocking plug 6 on the power signal interface 5 and connect the external power supply. At this time, the switch on the unit drive motor 13 can be started. The unit drive motor 13 drives the output end to rotate, the output end drives the transmission component 14 to rotate, the transmission component 14 drives the lead screw 8 on the linear slide 7 to rotate, the lead screw 8 drives the lead screw nut 9 to move, the lead screw nut 9 drives the connecting rod bracket 10 to move, the connecting rod bracket 10 drives the connecting rod 11 to rotate, and the connecting rod 11 drives the moving platform 3 to move upward, thus conveniently realizing the demonstration of raising, lowering and translating the moving platform 3.

[0027] When it is necessary to rotate and translate the moving platform 3, the transmission component 14 is driven to rotate by controlling the designated unit drive motor 13. The transmission component 14 drives the lead screw 8 on the linear slide 7 to rotate. The lead screw 8 drives the lead screw nut 9 to move. The connecting rod bracket 10 on the lead screw nut 9 drives the connecting rod 11 to rotate, thereby conveniently driving the moving platform 3 to rotate in a horizontal position.

[0028] Meanwhile, during the use of various components within the static platform 1, the cooling fan 4 is powered by an external power source. When the switch on the cooling fan 4 is turned on, the heat generated by the various components within the static platform 1 can be quickly and easily expelled from the static platform 1. At the same time, the ventilation holes on the static platform 1 can effectively accelerate the airflow within the static platform 1, thereby achieving cooling treatment for the various components within the static platform 1 during operation.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel multi-degree-of-freedom activity platform, characterized in that: The system includes a static platform (1), on which multiple linear slides (7) are mounted. A lead screw nut (9) is slidably mounted on the linear slide (7). A connecting rod bracket (10) is mounted on the lead screw nut (9) by bolts. A connecting rod (11) is rotatably mounted on the connecting rod bracket (10). An upper connecting frame (12) is rotatably mounted on the other end of the connecting rod (11). A moving platform (3) is mounted on the upper connecting frame (12) by bolts. A bellows cover (2) is mounted on the bottom side of the moving platform (3). The bellows cover (2) is mounted on the static platform (1).

2. The novel multi-degree-of-freedom active platform according to claim 1, characterized in that: The lead screw nut (9) is threaded with a lead screw (8), which is rotatably mounted on a linear slide (7).

3. The novel multi-degree-of-freedom active platform according to claim 2, characterized in that: Multiple unit drive motors (13) are installed on the static platform (1). A transmission component (14) is sleeved on the output end of the unit drive motor (13), and the other end of the transmission component (14) is sleeved on one end of the lead screw (8).

4. The novel multi-degree-of-freedom active platform according to claim 3, characterized in that: Multiple power signal interfaces (5) are installed on one side of the static platform (1), and the multiple power signal interfaces (5) are electrically connected to multiple unit drive motors (13) via cables.

5. A novel multi-degree-of-freedom active platform according to claim 4, characterized in that: A blocking plug (6) is connected to the power signal interface (5) via a limiting band, and the blocking plug (6) is movably inserted into the power signal interface (5).

6. A novel multi-degree-of-freedom active platform according to claim 4, characterized in that: Multiple cooling fans (4) are installed on the static platform (1). Multiple ventilation holes are opened on the static platform (1). The cooling fans (4) are adapted to the ventilation holes. The cooling fans (4) are electrically connected to the power signal interface (5).

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