PURPOSE: To automate the dressing process by providing a dressing device provides with three dressing members on a spindle stock in a dressing device of a compound working machine fitted with a cutting unit and a grinding unit.
CONSTITUTION: There is provided a dressing device 52 on the wall surface opposite to a grinding unit 70 of a casing 500 of the second spindle stock 50 on the grinding unit 70 side in a compound working machine 1 which is provided with the first spindle stock 30 and the second spindle stock 50 and with the grinding unit 70 fitted with an external grinding unit 74 and an internal grinding unit 76. The dressing device 52 is provided with the first dressing member 530, the second dressing member 532 and the third dressing member 534 in such a manner as shown in the figure, and a constitution is made so that dressing of the external circumferential surface 752, the first side surface 754, and the second side surface 756 of an external grinding wheel 750 may be conducted while the external grinding wheel 750 is being fed to the direction of the arrow. The inner grinding wheel conducts dressing of the external circumferential surface and the first side surface respectively.
YOSHIDA HISASHI
IWATA KEIICHI
