Wuhan Huazhong Numerical Control Co., Ltd HNC-18iT, Руководство по программированию

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Table of Contents
iii
5.8 Diameter and Radius Programming (G36, G37)...................................................... 64
5.9 Inch/Metric Conversion (G20, G21).........................................................................66
6 Spindle Speed Function........................................................................................................ 67
6.1
Limit of Spindle Speed (G46)...................................................................................68
6.2 Constant Surface Speed Control (G96, G97)............................................................69
7 Tool Function........................................................................................................................71
7.1
Tool Selection and Tool Offset (T code)...................................................................72
7.2 Tool Radius Compensation (G40, G41, G42)...........................................................74
8 Miscellaneous Function........................................................................................................ 76
8.1
M code List............................................................................................................... 77
8.2 CNC M-Function...................................................................................................... 78
8.2.1 Program Stop (M00)..................................................................................... 78
8.2.2 Optional Stop (M01).....................................................................................78
8.2.3 End of Program (M02)..................................................................................78
8.2.4 End of Program with return to the beginning of program (M30)................. 78
8.2.5 Subprogram Control (M98, M99).................................................................79
8.3 PLC M Function....................................................................................................... 81
8.3.1 Spindle Control (M03, M04, M05)...............................................................81
8.3.2 Coolant Control (M07, M08, M09).............................................................. 81
9 Functions to Simplify Programming.................................................................................... 82
9.1
Canned Cycles.......................................................................................................... 83
9.1.1 Internal Diameter/Outer Diameter Cutting Cycle (G80).............................. 83
9.1.2 End Face Turning Cycle (G81)..................................................................... 88
9.1.3 Thread Cutting Cycle (G82)......................................................................... 91
9.1.4 End Face Peck Drilling Cycle (G74)............................................................ 94
9.1.5 Outer Diameter Grooving Cycle (G75)........................................................ 96
9.2 Multiple Repetitive Cycle.........................................................................................98
9.2.1 Stock Removal in Turning (G71)..................................................................98
9.2.2 Stock Removal in Facing (G72)................................................................. 104
9.2.3 Pattern Repeating (G73)............................................................................. 108
9.2.4 Multiple Thread Cutting Cycle (G76)......................................................... 111
10 Comprehensive Programming.................................................................................... 114
10.1 Example 1............................................................................................................... 114
10.2 Example 2............................................................................................................... 116
10.3 Example 3............................................................................................................... 118
10.4 Example 4............................................................................................................... 119
11 Custom Macro.................................................................................................................... 120
11.1
Variables................................................................................................................. 121
11.1.1 Type of Variables........................................................................................ 121
11.1.2 System Variables........................................................................................ 122
11.2 Constant.................................................................................................................. 129
11.3 Operators and Expression....................................................................................... 130
11.4 Assignment............................................................................................................. 131
11.5 Selection statement IF, ELSE,ENDIF.....................................................................132
11.6 Repetition Statement WHILE, ENDW................................................................... 133
11.7 Macro Call.............................................................................................................. 134
11.8 Example.................................................................................................................. 136