Droplet microoperation mechanical hand structure and posture controlling method thereof

The invention provides a droplet microoperation mechanical hand structure. The droplet microoperation mechanical hand structure comprises an injection component, a control component, a fixing bracket component, a driving component arranged on the fixing bracket component, and an executive component connected with the driving component and the injection component. The invention also provides a posture controlling method of the droplet microoperation mechanical hand structure. According to the posture controlling method, the up and down movement amount, movement order and position of a constrained point of all tungsten filament bars are controlled, so that the postures of tiny parts adsorbed on droplets based on the surface tension are changed, and the accurate control of the postures of the tiny parts is achieved; compared with the prior art, the posture controlling method has the advantages of being more stable and more accurate in posture control, being easy and feasible, and being applicable to nondestructive operation of tiny objects with arbitrary shapes.