| 摘要 |
An index chuck for a CNC lathe is provided to rotate workpiece with the mechanical power of an operating bar formed in a CNC(computerized numerical control) lathe without supplying a separate energy source from outside. An index chuck for a CNC lathe comprises a body(110), a lifting operation part(120), a lifting operation part mobile tool(130), a rotary body(150), a rotary coupling plate(160), a fixed coupling plate(170), a first elastic body(180), a clutch bearing(190), and a pinion(191). An body is mounted on the spindle of the CNC lathe and work space is formed in the front of the body. The lifting operation part is positioned in an upper direction of the work space and is mounted on the body and is vertically slid. The rotary body is positioned in the lower direction of the work space and is mounted on the body and is vertically slid and rotates to the body around a sliding movement line. The rotary coupling plate is mounted on the top of the rotary body and has a first fastening unit at the bottom of the rotary coupling plate. The fixed coupling plate is mounted on the body and is located on the bottom of the rotary coupling plate and has a second fastening unit on the top of the fixed coupling plate. The first elastic body is formed between the body and the bottom of the rotary body and elastically supports the rotary body upward. The clutch bearing is inserted into the inner side of the clutch bearing and the clutch bearing is coaxially coupled on the rotary body. The outer side of the clutch bearing is mounted on the inner side of the pinion.
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