| 摘要 |
A chuck device (300) comprises front and rear collets (102, 112), a drive ring (72), and a drive sleeve (71). The drive ring (72) and the drive sleeve (71) can be moved hydraulically to be close or separated to/from each other. When the drive ring (72) and the drive sleeve (71) are moved to be separated from each other, the front and rear collets (102, 112) are hydraulically moved to discharging positions, respectively. When the drive ring (72) and the drive sleeve (71) are hydraulically moved to be close to each other, the front and rear collets (102, 112) are moved to clamping positions, respectively. Thereby, the chuck device having two collets according to the present invention securely clamps two objects to be processed simultaneously. |
