| 摘要 |
PURPOSE:To prevent transmission of micro-vibration by providing a guide bar in parallel with a feed screw to limit pitching and yowing of feed screw thus transmitting magnetic force between a nut holder and table block. CONSTITUTION:A nut holder 8 is screwed with a feed screw 6 while limited slidably through a guide bar 21 in parallel with the feed screw and linear motion bearing 20. A magnet 17 is fixed at the tip of the nut holder 8 and held between two magnets 18, 19 provided on a table block 4 while facing same polarity each other to transmit feeding motion through reaction of magnets. |
