Survey device is tested in leveling of numerical control ray apparatus work platform

Survey device is tested in leveling of numerical control ray apparatus work platform, processing has vertical ascending swivel nut on the device's the supporting seat, installs the screw rod in the swivel nut, and the upper segment processing of screw rod has the hexagonal face, has the jack in the processing of the top of screw rod, and at the jack flat housing that installs suitable for reading, the lower part processing of supporting the head has the connecting rod, and the mesopore cartridge that the connecting rod passed flat housing is in the jack on screw rod top. Adopt this technical scheme and since with the screw rod with support the head separation, the screw rod with support mounting surface bearing between the head, when using, when rotating screw rod jacking table surface, flat housing has reduced the screw rod and has supported the frictional force between the head, it is more laborsaving to rotate the screw rod, precision that easy control was adjusted, adopt in addition flat housing support t