Novel die casting airtightness detection device

The utility model provides a novel die casting airtightness detection device. The novel die casting airtightness detection device comprises a rack, a lifting power mechanism, an extrusion assembly, aninstallation base and an inflation system. The extrusion assembly comprises a connecting plate and a plurality of sealing columns arranged on the connecting plate; the sealing column comprises a fixed column body, a movable column body and a pressing column body, the fixed column body is connected to the connecting plate, the movable column body is connected to the fixed column body, the pressingcolumn body is connected to the movable column body and used for making contact with the surface of a workpiece, and an elastic piece is arranged between the fixed column body and the movable columnbody. According to the utility model, the sealing column extrudes the surface of the workpiece, and the elastic deformation of the elastic piece is utilized to enable the pressing column to carry outhigh-stability abutting and