Six-degree-of-freedom active-passive combined positioning and vibration-isolating platform

A technology of composite positioning and vibration isolation platform, which is applied in the direction of shock absorber, vibration suppression adjustment, non-rotational vibration suppression, etc., can solve problems such as restricting the working environment, achieve expanded vibration isolation bandwidth, low natural frequency, and reduce energy consumption Effect

Active Publication Date: 2017-02-15
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0006] Patent document CN103438142B is a six-degree-of-freedom active vibration isolation device, which uses six voice coil motors as active actuators and air springs as passive vibration-isolation units to effectively isolate vibration energy exceeding th

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[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0032] Fig. 1 is an axonometric view of a six-degree-of-freedom active-passive composite positioning and vibration isolation platform according to an embodiment of the present invention. As shown in FIG. 1 , in the embodiment of the present invention, the six-degree-of-freedom positioning and vibration isolation platform consists of a load platform 1 , an actuator unit 2 and a base platform 3 . ...

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Abstract

The invention discloses a six-degree-of-freedom active-passive combined positioning and vibration-isolating platform. The platform comprises a foundation platform (3) and a load platform (1), and is characterized in that the platform further comprises six actuator units (2) connected with the load platform (1) through upper flexible hinges (213) and connected with the foundation platform (3) though lower flexible hinges (201); and the axes of the actuator units are perpendicular to one another, and each actuator unit comprises a primary passive vibration-isolating mechanism and a secondary vibration-isolating mechanism. According to the six-degree-of-freedom active-passive combined positioning and vibration-isolating platform, the six actuator units are of a cube structure in the space, actuators have the same structural characteristics and control characteristics, accurate six-degrees-of-freedom positioning and vibration-isolating can be achieved, and the six-degree-of-freedom active-passive combined positioning and vibration-isolating platform can be widely applied to the fields of aerospace, optical instruments and meters, precision manufacturing and measuring, and the like.

Description

technical field [0001] The invention belongs to the field of precision positioning and vibration isolation, and more specifically relates to a six-degree-of-freedom active-passive composite positioning and vibration isolation platform. Background technique [0002] Vibration interference in the working environment is a key factor affecting equipment processing and measurement accuracy. With the improvement of equipment processing and measurement accuracy requirements, strict requirements are put forward for vibration isolation and platform positioning accuracy to ensure that precision equipment can work normally. Vibration isolation can be divided into passive vibration isolation, active vibration isolation and active-passive integrated vibration isolation. The traditional passive vibration isolator is composed of mass-spring-damping elements to achieve the effect of reducing vibration. Its structure is simple, easy to implement, reliable in operation, and does not require a...

Claims

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Application Information

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IPC IPC(8): F16F7/00F16F15/04
CPCF16F7/00F16F15/002F16F15/04F16F15/046
Inventor 陈学东陶业英李小清王敏
Owner HUAZHONG UNIV OF SCI & TECH
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