Multi-degree-of-freedom hybrid rolling test device

Abstract

The multi-degree-of-freedom hybrid swing test device comprises a mounting frame, a first driving mechanism and a second driving mechanism. The mounting frame comprises a mounting platform, a rotating shaft and a mounting column. The rotating shaft and the mounting column are arranged on opposite sides of the mounting platform and are connected with the mounting platform respectively. An end of the mounting column away from the mounting platform is used for mounting a swing test platform. The first driving mechanism comprises a first moving frame sleeved outside the mounting platform and a second moving frame sleeved outside the first moving frame. The first moving frame is used for driving the mounting platform to rotate in a first direction. The second moving frame is used for driving the mounting platform and the first moving frame to rotate in a second direction. The rotating shaft is used for driving the mounting platform to rotate in a third direction. The first direction, the second direction and the third direction are arranged at an included angle. The second driving mechanism is connected with the second moving frame and is used for driving the second moving frame to adjust the spatial position of the mounting platform in three orthogonal directions. The motion platform response speed and response accuracy are improved.

Description

Technical Field

[0001] This invention relates to the field of mechanical design technology, specifically to a multi-degree-of-freedom hybrid swing test device. Background Technology

[0002] Parallel motion platforms are a type of parallel motion mechanism that has advantages such as high load-bearing capacity, high rigidity, high precision, and structural stability, and are widely used in many fields.

[0003] Currently, parallel motion platforms use multiple hydraulic drive rods to move independently in order to achieve multi-degree-of-freedom operation of the platform. Hydraulic cylinders can bear large loads, but their response speed is slow and cannot meet the requirements of rapid movement of the motion platform. Moreover, hydraulic cylinders are large in size, and the use of multiple hydraulic cylinders together makes the whole machine very large and occupies a lot of space, which does not meet the design requirements of miniaturization of the whole machine.

[0004] Based on this, the inventors of this application propose a multi-degree-of-freedom swing test device in order to solve the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of large size and slow response of the motion mechanism in the prior art, and to provide a multi-degree-of-freedom swing test device.

[0006] The present invention solves the above-mentioned technical problems through the following technical solution: This invention provides a multi-degree-of-freedom hybrid swing test device, characterized in that it includes: The mounting frame includes a mounting platform, a rotating shaft, and a mounting column. The rotating shaft and the mounting column are respectively located on opposite sides of the mounting platform and are connected to the mounting platform. The end of the mounting column facing away from the mounting platform is used to mount the swing test platform. The first driving mechanism includes a first moving frame sleeved on the outside of the mounting platform and a second moving frame sleeved on the outside of the first moving frame. The first moving frame is used to drive the mounting platform to rotate in a first direction, and the second moving frame is used to drive the mounting platform and the first moving frame to rotate in a second direction. The rotating shaft is used to drive the mounting platform to rotate in a third direction. The first direction, the second direction and the third direction are set at an angle. The second drive mechanism, connected to the second motion frame, is used to drive the second motion frame to adjust the spatial position of the installation platform along three positive directions.

[0007] According to one embodiment of the present invention, the first motion frame includes a mounting member, a first frame body, a first drive member, and a first rotating shaft; The first frame is sleeved on the outside of the mounting component, which is used to install the mounting platform. The first drive component and the first rotating shaft are located between the first frame and the mounting component and are arranged opposite to each other. One end of the first drive component is connected to the first frame and the other end is rotatably connected to the mounting component.

[0008] According to one embodiment of the present invention, the second motion frame includes a second frame body, a second drive member, and a second rotating shaft; The second drive unit and the second rotating shaft are located between the second frame and the first frame and are arranged opposite to each other. One end of the second drive unit is connected to the second frame and the other end is rotatably connected to the first frame.

[0009] According to one embodiment of the present invention, the first driving member and the second driving member are drive motors; The first driving member and the output shaft axis of the second driving member are arranged perpendicularly.

[0010] According to one embodiment of the present invention, the second driving mechanism includes a support plate, and at least one slide rail is provided on the support plate; The slide rail is equipped with a slider, one end of which is slidably engaged with the slide rail, and the other end of which is slidably engaged with the first drive mechanism.

[0011] According to one embodiment of the present invention, the number of both the slide rail and the slider is two; The two slide rails are arranged parallel to each other at intervals.

[0012] According to one embodiment of the present invention, the slider is provided with a groove on the side facing the first driving mechanism, and the first driving mechanism slides along the groove with the slider; The groove is perpendicular to the length extension direction of the slide rail.

[0013] According to one embodiment of the present invention, the second driving mechanism further includes a plurality of third driving members, which are disposed at the four corners of the support plate and have their output ends connected to the support plate.

[0014] According to one embodiment of the present invention, the third driving component is a cylinder or a hydraulic cylinder.

[0015] According to one embodiment of the present invention, the rotating shaft is spherically multi-angle rotatingly engaged with the connecting end of the mounting platform.

[0016] The positive and progressive effects of this invention are as follows: This invention relates to a multi-degree-of-freedom hybrid swing testing device. A first driving mechanism can drive the mounting platform to rotate along a first, second, and third direction, while a second driving mechanism can drive the mounting platform along three positive directions. This satisfies the adjustment needs of the mounting platform at different angles and positions in space, significantly reduces the number of hydraulic cylinders, meets the requirements for device miniaturization, and helps improve the response speed of the mounting platform. Furthermore, the testing device of this invention not only achieves decoupling of translational and rotational control but also has advantages such as a large working space and strong reconfigurability. Attached Figure Description

[0017] The above and other features, properties and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the multi-degree-of-freedom hybrid swing test device of the present invention; Figure 2 for Figure 1 The top view shown.

[0018] 10. Mounting bracket; 110. Mounting platform; 120. Rotating shaft; 130. Mounting column; 20. Test platform; 30. First drive mechanism; 310. First moving frame; 311. Mounting component; 312. First frame body; 313. First drive component; 314. First rotating shaft; 320. Second moving frame; 321. Second frame body; 322. Second drive component; 323. Second rotating shaft; 40. Second drive mechanism; 410. Support plate; 420. Slide rail; 430. Slider; 440. Third drive component. Detailed Implementation

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] Embodiments of the invention will now be described in detail with reference to the accompanying drawings. Preferred embodiments of the invention will now be described in detail, examples of which are illustrated in the drawings. Wherever possible, the same reference numerals will be used in all the drawings to denote the same or similar parts. Furthermore, although the terminology used herein is selected from commonly known and used terminology, some terms mentioned in this specification may have been chosen by the applicant at his or her discretion, and their detailed meanings are explained in the relevant sections of the description herein. Moreover, the invention should be understood not only by the actual terms used, but also by the meaning implied by each term.

[0021] Please refer to Figure 1 and Figure 2This invention proposes a multi-degree-of-freedom hybrid swing test device, which includes a mounting frame 10, a first drive mechanism 30, and a second drive mechanism 40. The mounting frame 10 includes a mounting platform 110, a rotating shaft 120, and a mounting column 130. The rotating shaft 120 and the mounting column 130 are respectively located on opposite sides of the mounting platform 110 and connected to the mounting platform 110. The end of the mounting column 130 facing away from the mounting platform 110 is used to mount the swing test platform 20. The first drive mechanism 30 includes a first drive mechanism sleeved on the outside of the mounting platform 110. The first moving frame 310 and the second moving frame 320 sleeved on the outside of the first moving frame 310 are used to drive the mounting platform 110 to rotate in a first direction, and the second moving frame 320 is used to drive the mounting platform 110 and the first moving frame 310 to rotate in a second direction. The rotating shaft 120 is used to drive the mounting platform 110 to rotate in a third direction. The first direction, the second direction and the third direction are set at an angle. The second driving mechanism 40 is connected to the second moving frame 320 and is used to drive the second moving frame 320 to adjust the spatial position of the mounting platform 110 in the three positive directions.

[0022] In one embodiment, the first direction, the second direction, and the third direction are X, Y, and Z directions, respectively, and the X, Y, and Z directions are arranged perpendicularly to each other. The first motion frame 310 is used to drive the installation platform 110 to rotate along the X-axis, the second motion frame 320 is used to drive the installation platform 110 to rotate along the Y-axis, and the rotation shaft 120 is used to drive the installation platform 110 to rotate along the Z-direction, thus satisfying the multi-angle rotation adjustment requirements of the installation platform 110 in space.

[0023] Regarding the three positive directions, we will now refer to the first, second, and third directions. That is, under the drive of the second drive mechanism 40, the mounting platform 110 can be driven along the first, second, and third directions respectively. Specifically, the mounting platform 110 satisfies the translational position adjustment in the X, Y, and Z directions.

[0024] In one embodiment, the first motion frame 310 includes a mounting member 311, a first frame 312, a first drive member 313, and a first rotating shaft 314. The first frame 312 is sleeved on the outside of the mounting member 311. The mounting member 311 is used to assemble the mounting platform 110. The first drive member 313 and the first rotating shaft 314 are located between the first frame 312 and the mounting member 311 and are arranged opposite to each other. One end of the first drive member 313 is connected to the first frame 312, and the other end is rotatably connected to the mounting member 311.

[0025] That is, under the drive of the first driving member 313, the mounting platform 110 can rotate along the axial direction of the first rotating shaft 314. If the axial direction of the first rotating shaft 314 is the X-axis, then the first driving member 313 is used to drive the first rotating shaft 314 to rotate in the X-axis direction.

[0026] One end of the first driving component 313 is connected to the first frame 312 via a threaded connection or welding. The output end of the first driving component 313 is connected to the mounting component 311. Driven by the first driving component 313, the output end of the first driving component 313 drives the mounting component 311 to rotate, thereby driving the mounting platform 110 to rotate along the X-axis. One end of the mounting platform 110 is connected to the test platform 20, so the test platform 20 can rotate along the X-axis direction under the drive of the first driving component 313.

[0027] Furthermore, the second motion frame 320 includes a second frame 321, a second drive member 322, and a second rotating shaft 323; the second drive member 322 and the second rotating shaft 323 are located between the second frame 321 and the first frame 312 and are arranged opposite to each other; one end of the second drive member 322 is connected to the second frame 321, and the other end is rotatably connected to the first frame 312.

[0028] That is, the second driving member 322 is used to drive the first frame 312 to rotate along the axial direction of the second rotating shaft 323. At this time, the axial direction of the second rotating shaft 323 is set at an angle with the axial direction of the first rotating shaft 314, preferably 90 degrees. Then the second driving member 322 can drive the first frame 312 to rotate along the Y-axis. Thus, the mounting platform 110 and the test platform 20 can rotate along the Y-axis under the drive of the second driving member 322.

[0029] Specifically, when the first driving member 313 is in the working state, the second driving member 322 is in the non-working state; and when the first driving member 313 is in the non-working state, the second driving member 322 is in the working state. Thus, driven by the first driving member 313 and the second driving member 322, the mounting platform 110 can rotate along the X-axis or the Y-axis.

[0030] Furthermore, the rotating shaft 120 is located below the mounting platform 110 and rotates in conjunction with the mounting platform 110. Thus, driven by the rotating shaft 120, the mounting platform 110 can rotate along the Z-axis. In conjunction with the first driving member 313 and the second driving member 322, the mounting platform 110 can rotate along the X, Y, and Z directions, thereby driving the test platform 20 to rotate along the X, Y, and Z directions.

[0031] In one embodiment, both the first driving member 313 and the second driving member 322 are drive motors, and the output shaft axes of the first driving member 313 and the second driving member 322 are arranged perpendicularly. Correspondingly, the first rotating shaft 314 and the second rotating shaft 323 are arranged perpendicularly to each other.

[0032] Compared to hydraulic drive, the use of the first drive component 313 and the second drive component 322 can significantly improve the response drive speed of the mounting platform 110.

[0033] In one embodiment, the second drive mechanism 40 includes a support plate 410, on which at least one slide rail 420 is provided; a slider 430 is provided on the slide rail 420, one end of the slider 430 is slidably engaged with the slide rail 420, and the other end of the slider 430 is slidably engaged with the first drive mechanism 30.

[0034] Taking the length extension direction of the slide rail 420 as the X-axis direction as an example, the first drive mechanism 30 can slide along the slide rail 420 to meet the movement requirements in the X-axis direction.

[0035] Furthermore, a groove is provided on the side of the slider 430 facing the first drive mechanism 30, and the first drive mechanism 30 slides along the groove and engages with the slider 430; the groove is perpendicular to the length extension direction of the slide rail 420.

[0036] That is, the first drive mechanism 30 slides in the Y direction by sliding with the slide groove, while the slider 430 moves in the X direction by sliding with the slide rail 420. Thus, under the action of the support plate 410, the mounting platform 110 moves in the X and Y directions.

[0037] In one embodiment, the number of slide rails 420 and sliders 430 corresponds one-to-one. This application uses two slide rails 420 as an example for illustration. The two slide rails 420 are spaced apart, which can improve the motion stability of the first drive mechanism 30 in the X and Y axis directions.

[0038] Furthermore, a driving element, such as a motor, cylinder, or hydraulic cylinder, can be provided on one side of the slide rail 420 and the slider 430 to serve as the motion power for the first driving mechanism 30.

[0039] In one embodiment, the second drive mechanism 40 further includes a plurality of third drive members 440, which are disposed at the four corners of the support plate 410 and have their output ends connected to the support plate 410.

[0040] The following description uses four third driving components 440 as an example. The third driving components 440 are used to drive the support plate 410 to move along the Z-axis, thereby cooperating with the slide rail 420 and the slider 430 to meet the translational requirements of the first driving mechanism 30 in the X, Y, and Z directions. In some other embodiments, the number of third driving components 440 may be one, two, three, or more, which is not limited here.

[0041] As for the third drive component 440, it can be a cylinder, a hydraulic cylinder, or other linear drive mechanism, which is not limited here.

[0042] It should be noted that a fourth driving component 121 can be installed at one end of the rotating shaft 120. The fourth driving component 121 is a drive motor. One end of the drive motor is connected to the support plate, and the support plate is connected and installed to the third driving component 440.

[0043] In one embodiment, the connecting end of the rotating shaft 120 and the mounting platform 110 is spherically multi-angle rotatingly engaged.

[0044] For example, the end of the rotating shaft 120 is a spherical protrusion, and a spherical groove is provided below the mounting platform 110. The spherical protrusion is embedded in the spherical groove, thereby satisfying the adjustment of the mounting platform 110 from multiple angles.

[0045] In summary, the multi-degree-of-freedom hybrid swing test device of the present invention can drive the mounting platform 110 to rotate along the first, second, and third directions through the first drive mechanism 30, and drive the mounting platform 110 along the three positive directions through the second drive mechanism 40. This satisfies the adjustment requirements of the mounting platform 110 at different angles and positions in space, significantly reduces the number of hydraulic cylinders, meets the requirements of device miniaturization, and helps improve the response speed of the mounting platform 110. Furthermore, the test device of the present invention not only achieves decoupling of translational and rotational control, but also has advantages such as a large working space and strong reconfigurability. With motor drive as the main drive structure, it has high control precision and fast response; only a portion of the motor participates in the motion during the drive process, minimizing motor drive and saving energy and ensuring safety.

[0046] This application uses specific terms to describe embodiments of the application. Terms such as "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that references to "an embodiment," "one embodiment," or "an alternative embodiment" in different locations throughout this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0047] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any variations and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the invention, fall within the protection scope defined by the claims of the present invention.

Claims

1. A multi-degree-of-freedom hybrid swing test device, characterized in that, include: The mounting frame includes a mounting platform, a rotating shaft, and a mounting column. The rotating shaft and the mounting column are respectively located on opposite sides of the mounting platform and are connected to the mounting platform. The end of the mounting column facing away from the mounting platform is used to mount the swing test platform. The first driving mechanism includes a first moving frame sleeved on the outside of the mounting platform and a second moving frame sleeved on the outside of the first moving frame. The first moving frame is used to drive the mounting platform to rotate in a first direction, and the second moving frame is used to drive the mounting platform and the first moving frame to rotate in a second direction. The rotating shaft is used to drive the mounting platform to rotate in a third direction. The first direction, the second direction and the third direction are set at an angle. The second drive mechanism, connected to the second motion frame, is used to drive the second motion frame to adjust the spatial position of the installation platform along three positive directions; The second drive mechanism includes a support plate, on which at least one slide rail is provided; The slide rail is provided with a slider, one end of which is slidably engaged with the slide rail, and the other end of which is slidably engaged with the first drive mechanism; The slider has a groove on the side facing the first driving mechanism, and the first driving mechanism slides along the groove and engages with the slider. The slide groove is perpendicular to the length extension direction of the slide rail; The second driving mechanism also includes a plurality of third driving components, which are respectively disposed at the four corners of the support plate and whose output ends are connected to the support plate.

2. The multi-degree-of-freedom hybrid swing test device according to claim 1, characterized in that, The first motion frame includes a mounting component, a first frame, a first drive component, and a first rotating shaft; The first frame is sleeved on the outside of the mounting component, which is used to install the mounting platform. The first drive component and the first rotating shaft are located between the first frame and the mounting component and are arranged opposite to each other. One end of the first drive component is connected to the first frame and the other end is rotatably connected to the mounting component.

3. The multi-degree-of-freedom hybrid swing test device according to claim 2, characterized in that, The second motion frame includes a second frame body, a second drive component, and a second rotating shaft; The second drive unit and the second rotating shaft are located between the second frame and the first frame and are arranged opposite to each other. One end of the second drive unit is connected to the second frame and the other end is rotatably connected to the first frame.

4. The multi-degree-of-freedom hybrid swing test device according to claim 3, characterized in that, The first driving component and the second driving component are drive motors; The first driving member and the output shaft axis of the second driving member are arranged perpendicularly.

5. The multi-degree-of-freedom hybrid swing test device according to claim 1, characterized in that, The number of both the slide rail and the slider is two; The two slide rails are arranged parallel to each other at intervals.

6. The multi-degree-of-freedom hybrid swing test device according to claim 1, characterized in that, The third driving component is a pneumatic cylinder or a hydraulic cylinder.

7. The multi-degree-of-freedom hybrid swing test apparatus according to any one of claims 1-6, characterized in that, The rotating shaft is spherically multi-angled with the connection end of the mounting platform.

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