| 摘要 |
A structure of a ball return piece and its process of manufacture, and more importantly to the return piece of the internal circulation type ball screw system. The guide groove of the return piece is formed in the shape of a closed circular pipe to provide a precise pipe diameter for guiding the ball in a gliding fashion past the return piece. The return piece is produced by monoblock casting for ensuring enough strength to endure the strong impact stress upon it generated during the circulation of the balls and for preventing damage to the return piece. Moreover, since the guide groove of the return piece is to be formed in the shape of a closed circular pipe, a precise pipe diameter is required and can be achieved by precision lost wax casting. This provides the ball with stable guidance when passing the return piece.
|
