Four-dimensional turntable

Abstract

The invention provides a four-dimensional turntable, comprising a load plate, a support, a slide plate and a base arranged in sequence from top to bottom; The slide plate is slidably mounted on the base, and realizes horizontal linear movement through a horizontal direction pushing mechanism arranged on the base; A support frame is arranged on that slide plate, a support seat is arranged for sliding in the vertical direction of the support frame, and the support seat realizes linear movement through a vertical direction pushing mechanism arranged on the support frame; The support seat is horizontally rotated and provided with a pitch shaft, and the support seat is fixedly arranged on the pitch shaft; An azimuth shaft is vertically rotate and mounted on that support, and the top of the azimuth shaft is fixedly arrange at the center of the load plate. The invention creates the four-dimensional turntable, and adds two translational degrees of freedom, vertical and horizontal, on the basisof the two degrees of freedom of the existing two-dimensional turntable, so that the turntable has the position and angle adjustment functions of four degrees of freedom, and the universality of thecalibration and detection functions of the turntable is increased.

Description

technical field [0001] The invention belongs to the field of spacecraft ground tests, and in particular relates to a four-dimensional turntable. Background technique [0002] With the rapid development of my country's aerospace industry, the demand of spacecraft for vacuum ring die test is getting higher and higher. The environment in which the spacecraft operates in orbit is different from the ground environment. The on-orbit environment is a vacuum high and low temperature environment. In order to improve the launch success rate, verify the performance of the spacecraft in the vacuum high and low temperature environment and improve the reliability of the spacecraft, the spacecraft is launched During the previous ground test, multiple ring mold tests were carried out in a vacuum environment to eliminate failures caused by the inability of the spacecraft to adapt to the harsh environment on orbit. With the continuous improvement of spacecraft precision requirements, higher ...

AI Technical Summary

Problems solved by technology

[0004] At present, the freedom of movement of the vacuum turntable is mostly two-dimensional in the azimuth axis and the pitch axis. The two-dimensional turntable can simulate the attitude adjustment function of the test product in a vacuum environment. For the calibration and detection function of the particle beam, the relative position of the target and the tested part Depending on the initial installation position of the turntable, the initial installation position of the turntable needs to be readjusted for different DUTs, and the versatility is poor

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