A combination grinding machine 8, wherein {TAIL ~ the workpiece support mechanism} comprises a supporting drive unit configured to rotate {HEAD ~ a crankshaft} about a journal axis to thereby revolve a plurality of crank pins around the journal axis, and 
A combination grinding machine 8 , wherein { TAIL ~ the workpiece support mechanism } comprises a supporting drive unit configured to rotate { HEAD ~ a crankshaft } about a journal axis to thereby revolve a plurality of crank pins around the journal axis , and
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH