| 摘要 |
PROBLEM TO BE SOLVED: To provide a press-in device, achieving press-in with small load, inexpensive and small-sized. SOLUTION: This press-in device includes: an exciter unit 3 having a built-in super-magnetostrictive element periodically elastically deformed according to a periodically changing magnetic field to excite a part P to be pressed in; an air cylinder 2 pressing the excited part P through the exciter unit 3 to press the part P in a member R to be pressed in; and a driving circuit 51 for applying the periodically changing magnetic field to the super-magnetostrictive element to elastically deform the super-magnetostrictive element, wherein the driving circuit 51 sets the frequency and/or intensity of the magnetic field change so as to gradually change. COPYRIGHT: (C)2007,JPO&INPIT
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