| 摘要 |
A pipe flaring apparatus for use in flaring the end of a pipe preferably comprises a housing, a three jaw clamping chuck ( 3 ) in the housing which clamps the pipe ( 11 ) as the chuck ( 3 ) is propelled along an inclined surface ( 10 a) of a chuck clamp ( 10 ) also in the housing by the operation of an outer piston ( 4 ) slidable in the housing by mechanical or hydraulic means. An inner piston ( 5 ) also mounted in the housing and preferably within the outer piston propels the required flaring tool ( 6 ) inwardly compressing pipe end ( 11 a) between the clamping chuck die ( 3 a) and a pipe flaring tool forming face ( 6 b) to form an appropriate flare ( 11 b) on the pipe end ( 11 a). When the inner and outer pistons ( 4, 5 ) are deactivated resilient members preferably in the form of helical compression springs ( 8 a, 8 b) disengage the flaring head tool ( 6 ) and the clamping chuck ( 3 ) from the flared pipe ( 11 a). The pipe ( 11 ) can easily be withdrawn through the chuck ( 3 ) and chuck clamp ( 10 ).
|
