Abstract: |
The invention is a kind of space five freedoms parallel robot mechanism, which belongs to mechanical manufacturing technology field. The invention discloses a kind of robot mechanism, which includes a fixed platform, connected reciprocally, a middle platform and a moving platform; the moving platform is connected to the fixed platform through four branches with the same structure, forms the parallel closed loop structure, each branch contains an extensible link as driving spider, the two ends connect with the moving platform and the fixed platform with two chains; the two platforms are connected with Hooke ream; the middle platform is connected with the fixed platform with three parallel braches with the same structure, each branch contains an extensible link as driving spider, the two ends are connected with the middle platform and the fixed platform through two three-freedoms ball ream, the three parallel branches are linked, the invention has a high rigidity and precise. |