Patent ID: 7959385
Filing Date: 2011-06-14
Classification: H05K,Y10T

Abstract:
1. A printed circuit board machining apparatus, comprising: a table; a spindle rotatable and movable up and down while holding a tool for machining a printed circuit board mounted on the table; and a pressure unit for pressing the printed circuit board to the table in machining the printed circuit board; wherein the pressure unit, comprising: an elevating member movable up and down along the spindle; a moving member having a plurality of pressure pieces each having a through hole formed to pass through the tool, configured so as to allow one among the plurality of pressure pieces to be selected and held by the elevating member; a driving section for moving the moving member so that the through hole of the pressure piece is aligned with an axial center of the tool; an elevation driving section for moving the elevating member up and down to press the selected pressure piece to the printed circuit board; and a control section for controlling the driving section and the elevation driving section; wherein the control section controlling the driving section so as to select the pressure piece in accordance to a type and diameter of the tool and controlling the elevation driving section so as to change force for pressing the printed circuit board corresponding to the selected pressure piece.