TOOL DRIVE DEVICE, TOOL FEEDING MECHANISM FOR TOOL ROTATION UNIT AND HOLE MACHINING PROCESS

摘要

According to one embodiment, a tool feed mechanism (3) for a hand-held tool rotation device (2) which has a holder (4) and a first compressed air motor (5), a coupling device (14), a fixing element (13), a moving mechanism (12) and a second air motor (10). The holder (4) is used to clamp and hold a rotary tool (T). The first air motor (5) rotates the holder (4). The tool feeding mechanism (3) is attached to the tool rotating device (2). The coupling device (14) is attached to the tool rotation device (2). The fixing member (13) is directly or indirectly attached to a workpiece (W) for hole machining using the rotary tool (T). The movement mechanism (12) moves the coupling device (14) relative to the fixing element (13) in a tool axis direction (AX). The second air motor (10) drives the movement mechanism (12).