| 摘要 |
<p>PURPOSE:To decide a repeating step position with high accuracy and a high speed by combining a simple elastic mechanism and a positioning mechanism and loading them on a traveling object. CONSTITUTION:A brake beam 20 is set horizontally to a feed device rack 1 and a traveling object 4 contains a clamp mechanism 21 which holds the beam 20 and a hydraulic cylinder 22. Then a servo motor 7 and a ball screw 3 are driven by a shift command given from a positioning controller 8. However the object 4 is clamped and the feed driving force is stored in a feed device 30. A solenoid valve 23 is energized by a positioning shift command and opened by the next command. Thus a repeating step position can be decided instantaneously with high accuracy and at a high speed owing to the elastic restoring force using the feed driving force stored in the device 30.</p> |
