Three-dimensional follow-up constant force hanging device

Abstract

The invention discloses a three-dimensional follow-up constant force hanging device which comprises air floatation guide tracks, a constant force output device, pulley blocks and suspending ropes, wherein a transverse air floatation guide track is connected with a longitudinal air flotation guide track; horizontal brackets are mounted on two sides of the transverse air floatation guide track; six pulley blocks are provided and are respectively mounted below the transverse air floatation guide track, the longitudinal air flotation guide track and the horizontal brackets; a first suspending rope and a second suspending rope are connected with a hanging base; a hanging objective workpiece is hung on the hanging base; and the first suspending rope and the second suspending rope are respectively wound on the pulley blocks and are connected with the constant force output device. According to the three-dimensional follow-up constant force hanging device, as passive follow-up of the air flotation device is utilized, influence on measurement errors in active follow-up which is achieved through sensors, motors and guide tracks is eliminated, and the precision in follow-up is improved; as a constant hanging force is output through a constant force output cylinder, influence of an inertia force of weight reduction weights is avoided, and high-speed follow-up is achieved; and as the objective workpiece is smartly connected with the constant force output device through the pulley blocks, the plane follow-up of the air flotation device is not affected, constant force hanging is achieved, the stability is good, and the precision is high.

Description

technical field [0001] The invention relates to a three-dimensional constant force hanging device. Background technique [0002] To provide a constant hanging force for a target workpiece that moves freely in three-dimensional space, not only must the hanging force be kept constant, but also no additional influence on its three-dimensional motion is required. [0003] The "two-dimensional active following weight-reducing hanging device" with the patent application number of 201210406995.2 provides a method that uses sensors to measure the movement deflection angle of the target workpiece, feeds the measurement information back to the guide rail system, and uses linear guide rails, sliders and rotating shafts to Actively follow the planar movement of the target workpiece, and then provide a constant hanging force in the vertical direction through the force sensor and the coiled rope assembly, but because the sensor has a certain measurement error, and the length of the hangin...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of the existing three-dimensional following constant force hanging device, such as large measurement error, low following accuracy, and great influence of the inertial force of the weight reduction weight, the present inve

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