User's Manual ISO TNC 360 (260020xx, 280490xx) - heidenhain

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5 Programming Tool Movements 5.4 Path Contours - Cartesian Coordinates Circles and circular arcs - General information TNC 360 The TNC can control two machine axes simultaneously to move the tool in a circular path. Circle center I, J, K You can define a circular movement by entering its center. A circle center can also serve as reference (pole) for polar coordinates. Direction of rotation When there is no tangential transition to another contour element, enter the mathematical direction of rotation, where • a clockwise direction of rotation is mathematically negative: function G02 • a counterclockwise direction of rotation is mathematically positive: function G03 Y Fig. 5.17: Circular arc and circle center Y Z Y Fig. 5.18: Circle center coordinates Fig. 5.19: Direction of rotation for circular movements J G02 X Z Y J G03 I I X X X 5-15
5 Programming Tool Movements 5.4 Path Contours - Cartesian Coordinates 5-16 Radius compensation in circular paths You cannot begin radius compensation in a circle block. It must be activated beforehand in a line block. Circles in the main planes When you program a circle, the TNC assigns it to one of the main planes. This plane is automatically defined when you set the spindle axis during tool call (T). Circle center I, J, K Spindle axis Z Y X Main plane XY G17 ZX G18 YZ G19 Fig. 5.20: Defining the spindle axis also defines the main plane and the circle center designations You can program circles that do not lie parallel to a main plane by using Q parameters (see Chapter 7). If you program an arc using the functions G02/G03/G05, you must first define the circle center by: • entering the Cartesian coordinates of the circle center • using the circle center defined in an earlier block • capturing the actual position You can define the last programmed position as circle center/pole by programming G29. Duration of a circle center definition A circle center definition remains effective until a new circle center is defined. Y J Fig. 5.21: Circle center I, J Circle center I I J K I J K X TNC 360
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February 1994 HEIDENHAIN User's Man
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TNC Guideline: From workpiece drawi
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How to use this manual TNC 360 This
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Contents User's Manual TNC 360 ISO
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2 Manual Operation and Setup TNC 36
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4 Programming TNC 360 4.1 Editing P
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6 Subprograms and Program Section R
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8 Cycles TNC 360 8.1 General Overvi
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10 MOD Functions TNC 360 10.1 Selec
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1 Introduction 1.1 The TNC 360 1-2
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1 Introduction 1.1 The TNC 360 1-4
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1 Introduction 1.2 Fundamentals of
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1 Introduction 1.3 Switch-On 1-14 S
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1 Introduction 1.4 Graphics and Sta
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1 Introduction 1.4 Graphics and Sta
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1 Introduction 1.5 Programs Selecti
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2 Manual Operation and Setup 2.1 Mo
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2 Manual Operation and Setup 2.1 Mo
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2 Manual Operation and Setup 2.2 Sp
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2 Manual Operation and Setup 2.3 Se
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Page 61 and 62: 3 Test Run and Program Run 3.2 Prog
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7 Programming with Q Parameters 7.8
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8 Cycles 8.1 General Overview of Cy
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8 Cycles 8.2 Simple Fixed Cycles PE
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8 Cycles 8.2 Simple Fixed Cycles TA
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8 Cycles 8.2 Simple Fixed Cycles RI
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8 Cycles 8.2 Simple Fixed Cycles 8-
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8 Cycles 8.3 SL Cycles CONTOUR GEOM
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8 Cycles 8.3 SL Cycles 8-18 Example
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8 Cycles 8.3 SL Cycles 8-20 Cycle i
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8 Cycles 8.3 SL Cycles 8-22 Subprog
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8 Cycles 8.3 SL Cycles CONTOUR MILL
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8 Cycles 8.4 Cycles for Coordinate
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8 Cycles 8.5 Other Cycles DWELL TIM
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9 External Data Transfer 9-2 The TN
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9 External Data Transfer 9.3 Prepar
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10 MOD Functions 10.3 Entering the
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10 MOD Functions 10.7 Selecting the
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11 Tables, Overviews, Diagrams 11.1
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11 Tables, Overviews, Diagrams 11-2
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