Abstract:In order to solve the problems of backward separation technology between maggots and substrate, low level of mechanization and low level of automationin the industry of maggots breeding,a 1T2R multidimensionalparallelmaggots sieving machine was present.Translation along the zaxis, rotation around the xaxis and yaxiscouldbe achieved,so efficient separation was realized between maggots and substrate.On the one hand, kinematic model was established for the mechanism, then positive and inverse equation of kinematics was calculated, which was led to Matlab to acquire theoretical motion curve.On the other hand, three dimensional (3D)model of sieving machine was established by Pro/E, andit was led into ADAMS by interface software Mech/Pro to acquire simulative motion curve after adding drivers.The results show that the simulative curve is completely in consistent with the theoretical curve, so the correctness of the kinematic mathematic model was verified.