A 4D printing method for stiffness control of lower extremity exoskeleton robot

Abstract

The invention discloses a 4D printing method applied to rigidity regulating and control of a lower limb exoskeleton robot. The 4D printing method comprises the following steps: acquiring three-dimensional characteristic data of a wearer's lower limb via a human body three-dimensional scanning system, and establishing a three-dimensional shape model of the wearer's lower limb; recording rigidity characteristic data of the wearer's lower limb on various terrain types via a human body rigidity measuring system, and acquiring rigidity change characteristics of the wearer's lower limb; and via three-dimensional modeling software, establishing a three-dimensional structural model and a rigidity regulating and control mechanism of the lower limb exoskeleton robot in accordance with shape characteristics and movement requirements of the wearer, and therefore, implementing layer-by-layer printing of the lower limb exoskeleton robot having human body biomechanical properties. Shortcomings of a conventional process which has difficulties in implementing individual design and manufacturing can be overcome; a fit curve of the lower limb exoskeleton robot to the wearer can be improved; movementinterference of the lower limb exoskeleton robot to the wearer can be reduced; and comfort of the wearer can be enhanced.

Description

technical field [0001] The invention relates to the field of additive manufacturing, in particular to a 4D printing method for stiffness regulation. Background technique [0002] China's aging process is gradually accelerating. In January 2018, the National Bureau of Statistics announced that the elderly aged 60 and over had reached 224 million, accounting for 15.9% of the total population of the country, and the elderly aged 65 and over reached 139 million. , accounting for 10.3% of the country's total population, and 153 million people aged 65 and above, accounting for 10.59% of the country's total population. The various physiological functions and motor functions of the elderly gradually decline. Cerebral fatigue, Parkinson's disease, and Alzheimer's disease are common and frequently-occurring diseases of the elderly. There are about 2 million new patients every year, and those who lose their ability to take care of themselves There are more than 40 million elderly peop...

AI Technical Summary

Problems solved by technology

[0006] Each wearer has a different lower limb profile, and it is necessary to customize a personalized lower limb exoskeleton robot for each wearer. Existing lower limb exoskeleton robots are generally processed with a unified mold, which cannot achieve personalized design and manufacture.

Images