The application discloses a high-pressure
elbow ballistic hole positioning and clamping device and a use method, and belongs to the technical field of
machining. The device comprises a lathe, a rotary
workbench is arranged on the
workbench of the lathe, a special rotating shaft is fixed through a three-jaw chuck, a
locking mechanism and a limiting mechanism are matched to realize accurate clamping of a workpiece, the rotating shaft realizes centering of an inner hole of the
elbow, a locking cone ring cooperates with a plurality of bolts to form a curved surface clamping and locking structure, and an adjustable limiting mechanism limits a
processing posture of the
elbow. During
processing, the device can continuously complete
processing of a plurality of groups of different space included angle ballistic holes through reference positioning, rigid locking and rotary positioning. The application discloses the device, which eliminates artificial positioning mode and human measurement error, greatly improves clamping rigidity and hole position processing precision, effectively avoids problems of hole
position angle out-of-tolerance and workpiece leakage, simplifies processing procedures, and significantly improves high-pressure elbow
batch processing efficiency and pipeline pressure-bearing reliability.