Mill rotor blade holder welding position device and construction?machinery

The utility model relates to a mill rotor blade holder welding position device and construction?machinery wherein, mills rotor blade holder welding position device and includes locating rack, sliding component, first setting element and second setting element, the locating rack is equipped with the slide, the tip of sliding component can circumference is slided in the slide, and just can pass through a locking device will the sliding component with the locating rack locking, be equipped with first locating hole on the locating rack, be used for inserting in the first locating hole and establish first setting element, be equipped with the second locating hole on the sliding component, be used for inserting in the second locating hole and establish the second setting element. The utility model discloses the elder generation uses on same the helix that does not come off two adjacent blade holders to demarcate positioner as the reference, confirm to mill rotor blade holder installation parameter after, use again