| 摘要 |
PROBLEM TO BE SOLVED: To provide apparatus and process for manufacturing a squirrel cage rotor at a low cost, while enhancing work efficiency by enabling application of brazing to the other side with a short cooling time, without taking out the squirrel cage rotor from an enclosed container, after completing brazing on one side. SOLUTION: The manufacturing apparatus 1 of a squirrel cage rotor 3, where a rotor bar 20 fitted in a laminated core 21 and an end ring 22 are connected through brazing comprises a brazing material 20 arranged in a recess formed at the end part of the end ring 22, a raising/lowering device 4 fixed to the underside of a container 6 and moving the squirrel cage rotor 3 in the axial direction under a substantially vertical state, a device 8 for gripping the laminated core 21, while making it inverted by 180°about an axis perpendicular to the axial direction of the core 21, a heating coil 7 arranged in the container 6 in close proximity to the hoisting/lowering passage of the squirrel cage rotor 3, and a high-frequency power supply 16 for supplying a high-frequency current to a heating coil 7. COPYRIGHT: (C)2005,JPO&NCIPI
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