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

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5 Programming Tool Movements 5.5 Path Contours - Polar Coordinates Helical interpolation TNC 360 A helix is the combination of a circular movement in a main plane and a linear movement perpendicular to the plane. A helix is programmed only in polar coordinates. Applications You can use helical interpolation with form cutters to machine: • Large-diameter internal and external threads • Lubrication grooves Input Fig. 5.38: Helix: a combination of circular and linear paths • Total incremental angle of tool traverse on the helix • Total height of the helix Input angle Calculate the incremental polar coordinate angle G91 H as follows: H = n . 360°. n = number of revolutions of the helical path For G91 H you can enter any value from –5400° to +5400° (n = 15). Input height Enter the helix height h in the tool axis. The height is calculated as: h = n x P, n = number of thread revolutions P = thread pitch Radius compensation Enter the radius compensation for the helix according to the table at right. Y Z Internal thread Right-hand Left-hand Right-hand Left-hand External thread Right-hand Left-hand Right-hand Left-hand Work direction Z+ Z+ Z– Z– Work direction Z+ Z+ Z– Z– I, J Rotation G13 G12 G12 G13 Rotation G13 G12 G12 G13 Radius comp. G41 G42 G42 G41 Radius comp. G42 G41 G41 G42 Fig. 5.39: The shape of the helix determines the direction of rotation and the radius compensation X 5-33
5 Programming Tool Movements 5.5 Path Contours - Polar Coordinates 5-34 To program a helix: H G G 1 9 2 1 1 0 8 0 Z 4 END If necessary, enter also: Radius compensation Feed rate F Miscellaneous function M Resulting NC block: G12 G91 H+1080 Z+4.5 * 5 Helix in clockwise direction of rotation. Enter the total angle of tool traverse along the helix as an incremental value, for example H = 1080°. Enter the total height of the helix in the tool plane as an incremental value, for example Z = 4.5 mm. Terminate the block. 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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2 Manual Operation and Setup 2.4 3D
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2 Manual Operation and Setup 2.6 Me
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3 Test Run and Program Run 3.2 Prog
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3 Test Run and Program Run 3.2 Prog
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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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User's Manual ISO TNC 360 (260020xx, 280490xx) - heidenhain

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