A three-axis swing table

Abstract

The invention discloses a novel three-axle swinging platform. The novel three-axle swinging platform can provide a three-freedom-degree swinging movement environment and mainly comprises a base, inner, middle and outer frames, inner, middle and outer axle systems, inner, middle and outer frame swinging rods, inner, middle and outer ball screws, inner, middle and outer stepping motors, inner, middle and outer frame connecting hinges and inner, middle and outer frame inserting pins. When movement-instruction pulse signals transmitted from an industrial control machine is received by the motors, the motors rotate forwards and reversely, the forward-reverse rotary movement of the motors is transformed into reciprocating linear movement by the ball screws, and the frames are pushed by the swinging rods, so that the swinging movement of the three frames of a rotary platform is realized. The novel three-axle swinging platform disclosed by the invention has the advantages that a transmission system is arranged outside the frames, the ball screws are used as moving parts of the transmission system, so that not only is the power of driving motors reduced by utilizing the transmission ratio, and the volume of a platform body is greatly reduced, but also the problems of transmission gaps, noise and efficiency loss and the like of the reciprocating movement are solved.

Description

technical field [0001] The invention relates to a novel three-axis oscillating table, in particular to a novel three-axis oscillating table body, which is suitable for testing the oscillating accuracy of inertial navigation devices and systems. Background technique [0002] The three-axis rocking table is a three-axis turntable with rocking function, which can provide three-dimensional rocking motion in space, and is mainly used for testing the dynamic performance and dynamic accuracy of instruments. During the test, the three frames of the three-axis oscillating table are determined by the pins to determine the initial zero position, and the pins are pulled out from the frames when doing the rocking motion, and then the rocking table performs the rocking motion with the specified parameters according to the instructions of the industrial computer. There are three main types of existing three-axis swing tables: the first type is that the rigid table is supported and driven b...

AI Technical Summary

Problems solved by technology

The three-dimensional rocking table in the form of a rigid table supported and driven by six screw screws has high manufacturing costs and high power consumption; the rocking table installed coaxially with the drive motor and the rotary shaft, under the same load and motion index conditions, due to the small rotating arm , the required motor torque is large, and the volume, power and weight of the large-torque motor will increase a lot, and the frame volume and moment of inertia will increase accordingly, which has the characteristics of large power consumption and large table body volume; the gear-driven swing table, due to The inherent characteristics of gear transmission, large transmission clearance, low transmission efficiency, large return error, large transmission noise and vibration

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