Welding robot's work piece fixing device

The utility model discloses a welding robot's work piece fixing device belongs to welding equipment technical field, including workstation, hold -down mechanism, circumferential location mechanism, location core and a plurality of auxiliary pad piece, the workstation includes panel, bottom plate and is used for connecting the panel with the intermediate cylinder of bottom plate, hold -down mechanism sets up the both sides of panel upper surface, the circumferential location establishment of institution is in the front side of panel upper surface, location core setting is in the middle part ofpanel upper surface, a plurality of auxiliary pad pieces set up just be located on the panel upper surface around the core of location. The utility model discloses a set up the hold -down mechanism that automatic pendulum changes, when loosen the work piece, go to the compact heap pendulum to side automatically, be convenient for take off the work piece, when pressing from both sides tight work piece, automatic put the co