Roller cam transmission mechanism and horizontal rotary table

The utility model relates to a roller cam transmission mechanism and a horizontal rotary table. The transmission mechanism comprises a rotary tower, a first cam shaft and a second cam shaft, a plurality of needle bearings are arranged on the rotating tower; the first cam shaft and the second cam shaft rotate synchronously, the second cam shaft is parallel to the first cam shaft and symmetrically arranged on the two opposite sides of the rotating axis of the turret with the first cam shaft, and the needle bearing is meshed with curved surfaces of the first cam shaft and the second cam shaft; the first cam shaft and the second cam shaft have the same rotation direction and opposite spiral directions of the curved surfaces. According to the roller cam transmission mechanism and the horizontal rotary table, transmission stress at the two ends of the rotary tower is symmetrical, the stability and rigidity of the rotary table can be improved, the eccentric phenomenon of the rotary table is avoided, when the rotary