The invention belongs to the technical field of palletizing robots. In order to solve the problem that a traditional palletizing
robot is low in applicability, the series-parallel
connection type metamorphic palletizing
robot mechanism is provided and comprises a fixed base, a rotating base, a double-
branch-chain series-parallel connection
kinematic chain, a metamorphic control
assembly and an end
effector, and the rotating base is rotationally arranged at the top of the fixed base; the double-
branch-chain series-parallel
kinematic chain is connected with the rotating base and the end
effector and comprises a first
branch chain, a second branch chain and a passive moving pair which are connected to form a closed-loop
kinematic chain, the metamorphic control
assembly comprises a locking device and a
clutch, the locking device is arranged at the
kinematic pair of the double-branch-chain series-parallel kinematic chain, and the
clutch is connected to the driving end of the second branch chain. The locking device is locked or unlocked to be combined with or separated from the
clutch, so that the degree of freedom of the mechanism is switched between
two degrees of freedom and multiple single
degrees of freedom. According to the mechanism, switching between
two degrees of freedom and multiple single
degrees of freedom can be achieved, and therefore different stacking task requirements are met.