| 摘要 |
PROBLEM TO BE SOLVED: To provide a multi-pipe caulking/fixing device capable of caulking and fixing a metal pipe of a double-pipe structure consisting of an outer pipe and an inner pipe in which the heat exchanger is excellently performed between the high-pressure refrigerant flowing in a pipe reaching an evaporator from a compressor of the refrigerating cycle of an air-conditioner for an automobile via a condenser and the low-pressure refrigerant flowing in a pipe reaching the compressor from the evaporator. SOLUTION: The multi-pipe caulking and fixing device comprises a holding base plate 6 erected on a working table 5 while opening a notched part 4 for inlet/outlet continuous to an insertion part K of a pipe 1 having an outer pipe 2 and an inner pipe, a turnable displacement plate 8, and a caulking and fixing mechanism part 13 which is coaxially provided in an advancing/retracting manner in the radial direction by a quick-acting cylinder 9 and provided with a plurality of chuck claws 10A, 10B, 10C to 10F, driven cam rollers 11, etc., and guide pressing wall parts 12, etc. which are pressed by the driven cam rollers, turned while urging the pressure in the centripetal direction O to give the caulking force to the pipe. COPYRIGHT: (C)2007,JPO&INPIT
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