Spindle rotation drive mechanism in the machine tool, the main bearing block and column guide of the bearing mechanism, the tool holder mounting mechanism, horizontal dual-use conversion device of vertical milling and boring machining, carriage sliding devices, the sliding mechanism of the table, cutting oil automatic recovery processing equipment, grinding attachment devices, bonding method of the grinding wheel and the abrasive stone in cutting attachment devices, columns and column guide way of processing, next to Geta method of processing

摘要

PURPOSE:To carry out various kinds of maching with a set of machine tool by providing column guides free to slide up and down respectively on two columns vertically provided against the upper surface on both sides in the cross direction of a table provided free to slide in the longitudinal direction of the upper surface of a bed. CONSTITUTION:A carriage 38 is slided along a cross girder 37 and moved in parallel with the upper surface of a table 31 to move a processing tool to a processing position of a workpiece on the table 31. Additionally, column guides 34, 34 are moved up and down along columns 33, 33 to move the cross girder 37 up and down so as to move the processing tool in the vertical direction. And then, a working cylinder 907 is actuated so that a spindle guide 40 is slided in the inner peripheral surface shaft center direction of a spindle head 39 and moved up and down. Furthermore, when stoppers 54, 54 are inserted into a horizontal cradle of the guide 34 by way of extracting the stoppers 54, 54 on both of right and left sides of the lateral girder 37 from vertical cradles 55, 55 and rotating the lateral girder 37 by ninely degrees around a lateral girder rotational shaft and fixed, the shaft center direction of the spindle guide 40 comes to be in parallel with the upper surface of the table 31.