Kyocera - Основной каталог 2011-2012 ENG

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     Summary of Turning

           Swiss Tool Automatic Lathe (Guide Bush System)

             Goose-neck holder is applicable to automatic lathes whose toolholder does not move to
             longitudinal direction (Z-axis direction).

          In case of machining with the conventional toolholder
                                                Before Machining

                                                                             Guide bush
                                                                         Bar material
                                                                         (Workpiece Material)

E

                                                                        Constant distance
                                                                        (1~2mm)

                                                During Machining
Small Tools
                                                                       (X-axis direction)
(Z-axis direction)                                                                         Toolholder motion

                 The tool position is fixed and the workpiece                              For step turning with multiple passes, the
                 moves longitudinally.                                                     machined part returns into the guide bush and
                                                                                           causes various problems.
   Problems
1 Problems in attachment                                                                                      Adopter  Toolpost

   When using a conventional toolholder,
   1) Additional space is required for an adopter.
   2) Toolholder's handling is difcult due to limited space.
   3) Necessary to buy an adopter.
   4) An adopter may interfere with the next toolpost.

2 Problems during machining

     when machining with a conventional toolholder

                                                                   Case1
                                                                During multiple passes,
                                                                when the bar material
                                                                returns into the guide
                                                                bush, the burr contacts
                                                                and breaks the guide
                                                                bush.

                       Case 2                                                                                    Case 3
                    The workpiece burr contacts                                                               When roughing, chips
                    the guide bush and causes                                                                 come into the guide bush.
                    dimensional variation.

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