| 摘要 |
PCT No. PCT/US96/11180 Sec. 371 Date Feb. 27, 1998 Sec. 102(e) Date Feb. 27, 1998 PCT Filed Jul. 1, 1996 PCT Pub. No. WO98/00250 PCT Pub. Date Jan. 8, 1998A quick change tooling method and apparatus has been devised for tube bending operations in which the bend die, clamp die and pressure die as well as mandrel and wiper die, if required, are preassembled along with a tube corresponding to the tube to be bent in that particular die assembly by releasable latches or other types of releasable connectors; and each preassembled die set as described can be removed, transported and relocated on a bending machine as a complete assembly and in exact aligned operating position without readjustment and pressure setting each time that the die set is installed. A lift mechanism is provided to facilitate lifting of each die set onto and from the bending machine as well as to automatically locate each die set in proper aligned position on the machine.
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