Table Of Contents - Wuhan Huazhong Numerical Control Co., Ltd HNC-18iT v4.0 Programming Manual

Table Table Table of of of of Contents Contents Contents
Table Contents
Preface............................................................................................................................................. i
1 General................................................................................................................................... 1
1.1 CNC Programming..................................................................................................... 2
1.2 Interpolation................................................................................................................4
1.2.1
1.2.2
1.2.3
1.3 Feed Function............................................................................................................. 6
1.4 Coordinate System......................................................................................................7
1.4.1
1.4.2
1.4.3
1.4.4
1.4.5
1.4.6
1.4.7
1.5 Spindle Speed Function............................................................................................ 14
1.6 Tool Function............................................................................................................15
1.6.1
1.6.2
1.7 Miscellaneous Function............................................................................................ 18
1.8 Program Configuration............................................................................................. 19
1.8.1
1.8.2
2 Preparatory Function (G code)............................................................................................. 21
2.1 G code List................................................................................................................22
3 Interpolation Functions.........................................................................................................24
3.1 Positioning (G00)..................................................................................................... 25
3.2 Linear Interpolation (G01)........................................................................................26
3.3 Circulation Interpolation (G02, G03)....................................................................... 31
3.4 Chamfering and Rounding (G01, G02, G03)............................................................37
3.4.1
3.4.2
3.4.3
3.4.4
3.5 Thread Cutting with Constant Lead (G32)............................................................... 43
3.6 Tapping (G34)...........................................................................................................46
4 Feed Function....................................................................................................................... 49
4.1 Rapid Traverse (G00)............................................................................................... 50
4.2 Cutting Feed (G94, G95).......................................................................................... 51
4.3 Dwell (G04)..............................................................................................................52
5 Coordinate System................................................................................................................53
5.1 Reference Position Return (G28)..............................................................................54
5.2 Auto Return from Reference Position (G29)............................................................ 55
5.3 Setting a Workpiece Coordinate System (G92)........................................................ 57
5.4 Selecting a Machine Cooridinate System (G53).......................................................58
5.5 Selecting a Workpiece Coordinate System (G54~G59)............................................59
5.6 Origin of a Workpiece Coordinate System (G51, G50)............................................ 61
5.7 Absolute and Incremental Programming (G90, G91)...............................................62
Linear Interpolation........................................................................................ 4
Circular Interpolation......................................................................................5
Thread Cutting................................................................................................ 5
Reference Point...............................................................................................7
Machine Coordinate System...........................................................................8
Workpiece Coordinate System........................................................................9
Setting Two Coordinate Systems at the Same Position................................ 10
Absolute Commands.....................................................................................11
Incremental Commands................................................................................ 12
Diameter/Radius Programming.................................................................... 13
Tool Selection............................................................................................... 15
Tool Offset.................................................................................................... 15
Structure of an NC Program......................................................................... 19
Main Program and Subprogram....................................................................20
Chamfering (G01).........................................................................................37
Rounding (G01)............................................................................................ 38
Chamfering (G02, G03)................................................................................40
Rounding (G02, G03)................................................................................... 41
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