| 摘要 |
<p>A bending angle detection device reduces labor required for operation to determine what extent of bending of a plate corresponds to what degree of angle of the bent portion of the plate. The bending angle detection device (50) has a sensor ring L (64), a holder (62), a bearing (70), a motor body of a servomotor (60), and a rotation angle sensor (102). The sensor ring L (64) generates a signal depending on whether it is in contact with a blade material plate or not. The holder (62) and the bearing (70) rotatably connect the sensor ring L (64) to a bending machine. The motor body of the servomotor (60) is driven so as to rotate the sensor ring L (64). The rotation angle sensor (102) detects the rotation angle of the sensor ring L (64). The holder (62) and the bearing (70) connect the sensor ring L (64) to the bending machine so that the rotation axis of the blade member plate and the rotation axis of the sensor ring L (64) are aligned with each other when the bending machine bends the blade material plate.</p> |
