PIPE JOINT OF HARD PIPE, CONNECTION PIPE PROCESSING DEVICE AND CONNECTION PIPE PROCESSING METHOD

摘要

Disclosed are a pipe joint of a hard pipe used for a hydraulic system and a device and method used for connection pipe processing, wherein the hard pipe has a head body (112) of a spherical shape, the head body (112) is elastically deformed to form a circle of circular sealing face fitted with a conic hole wall (125), such that a current simple line sealing is replaced by a certain degree of face sealing, thereby obtaining reliable airtightness. In addition, the device and the method can be used for manufacturing the head body (112) of a spherical shape, and are suitable for site operation.