Robot joint braking device and robot joint

The utility model discloses a robot joint braking device and a robot joint, which comprise a rotating shaft, a robot joint body and a bolt assembly, the bolt assembly comprises a support, and a magnetic pushing piece, an elastic piece and a bolt which are connected with the support, the elastic part moves in the axial direction of the bolt by means of the magnetic force of the magnetic pushing part and the elastic force of the elastic part; the brake assembly comprises a friction column and a brake disc, the brake disc is in interference fit with the friction column, the projection of the brake disc and the projection of the plug pin in the displacement direction of the plug pin have an overlapping area, and the brake disc is clamped through interference in the displacement process of the plug pin to brake the brake assembly so as to control the rotating shaft to stop. 本实用新型公开一种机器人关节制动装置及机器人关节，包括：转轴，安装于机器人关节本体，插销组件，所述插销组件包括支架和与所述支架连接的磁性推动件，弹性件，插销，其借用所述磁性推动件的磁力和所述弹性件的弹力于所述插销的轴向方向上位移；制动组件，所述制动组件包括摩擦柱，制动盘，所述制动盘与