| 摘要 |
PROBLEM TO BE SOLVED: To provide a tube bending device capable of bending a tube with high accuracy. SOLUTION: The tube bending device includes: a rotary piece disposed at a specified position of a frame; a clamp device for holding a work on the rotary piece; a work pressing device for pressing the work in the tangential direction of the rotary piece; a mandrel moving device for moving the mandrel inserted in the work in the tangential direction of the rotary piece; and a controller for controlling the position of the mandrel. The rotary piece, the work pressing device, and the mandrel moving device are driven by independent driving devices respectively. Each of the driving devices for the rotary piece, the work pressing device, and the mandrel moving device is driven based on predetermined conditions. At least the bending end position of the mandrel is set at an arbitrary position. COPYRIGHT: (C)2009,JPO&INPIT
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