Nc machine tool

Details Nc machine tool Nc machine tool

B - Operations, Transporting

23

Q

B23Q 3/00 (2006.01) B23Q 1/62 (2006.01) B23Q 5/38 (2006.01) B23Q 5/56 (2006.01) F16H 57/12 (2006.01) F16H 55/28 (2006.01)

Patent

CA 2357384

A NC machine tool having a constitution in which a table (15, 115) for placing a work thereon and a spindle (14, 114) for setting a tool are relatively moved by three feed mechanisms (18-20, 118-120), for X-axis, for Y-axis, and for Z-axis, to carry out machining. A preload is applied to all the three feed mechanisms (18-20, 118-120), for X-axis, for Y-axis, and for Z-axis, using a rack-pinion (21, 22, 24, 25, 27, 28, 121, 122, 124, 125, 127, 128), and using two motors (16, 23, 29) for each axis to prevent backlash in the rack-pinion.

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