5699-E P-29
SECTION 3 OPERATION (OF CNC LATHE)
2-5.
ATC
Tool Preparation
(1) Tool shank: NT No. 50 taper for milling machines
(2) Tool grip: Conforms to MAS (403-1982) BT50.
The dimension from the trapezoidal groove center to the taper datum diameter (
φ
69.85 (2.75
in.)) position shall be 23.2
±
0.1 mm (0.913
±
0.004 in.). Refer to Section 3 “Tool Shank Dimen-
sions.”
(3) Pull-stud: Use MAS (403-1982) type 2.
The dimension from the pull-stud
φ
23 (0.91 in.) position to the taper datum diameter (
φ
69.85
(2.75 in.)) position shall be 136.8
(5.386
) in the state where the pull-stud is strongly
driven into the tool. Refer to Section 3 “Tool Shank, Pull-stud Dimensions.” (If a tool having a
wrong dimension is used, the NC may detect the error “no tool in spindle” or “incomplete clamp-
ing,” disabling spindle rotation.)
(4) Max tool length: 500 mm (19.69 in.) from the taper datum diameter (
φ
69.85 (2.75 in.)) position
to the tool edge.
(5) Max tool diameter stored in the magazine with adjacent pots occupied with tools: 170 mm (6.69
in.)
(6) Max tool diameter stored in the magazine with adjacent pots empty: 300 mm (11.81 in.)
Note: Diameter 50 mm (1.97 in.) from the tool end in max length is
φ
250 (9.84 in.).
(7) Max tool weight including the shank: 30 kg (66 lb) (Ave: 20 kg (44 lb))
(8) Max tool weight moment: The center of gravity shall be located within 205 mm (8.07 in.) from
the datum diameter (
φ
69.85 (2.75 in.)) position. (60 N-m (44 lbf-ft))
+0.2
-0.3
+0.008
-0.012
