Heidenhain TNC 320 (340 551-02) Manuel d'utilisateur Page 196
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196 8 Programming: Cycles
8.2 Cycles for Drilling, Tapping and Thread Milling
BACK BORING (Cycle 204)
This cycle allows holes to be bored from the underside of the
workpiece.
1 The TNC positions the tool in the tool axis at rapid traverse FMAX
to the set-up clearance above the workpiece surface.
2 The TNC then orients the spindle to the 0° position with an
oriented spindle stop, and displaces the tool by the off-center
distance.
3 The tool is then plunged into the already bored hole at the feed rate
for pre-positioning until the tooth has reached the set-up clearance
on the underside of the workpiece.
4 The TNC then centers the tool again over the bore hole, switches
on the spindle and the coolant and moves at the feed rate for
boring to the depth of bore.
5 If a dwell time is entered, the tool will pause at the top of the bore
hole and will then be retracted from the hole again. Another
oriented spindle stop is carried out and the tool is once again
displaced by the off-center distance.
6 The TNC moves the tool at the pre-positioning feed rate to the set-
up clearance and then, if entered, to the 2nd set-up clearance at
FMAX.
X
Z
X
Z
Q250
Q203
Q204
Q249
Q200
Q200
X
Z
Q255
Q254
Q214
Q252
Q253
Q251
Machine and control must be specially prepared by the
machine tool builder for use of this cycle.
This cycle is effective only for machines with controlled
spindle.
Special boring bars for upward cutting are required for this
cycle.
Before programming, note the following:
Program a positioning block for the starting point (hole
center) in the working plane with radius compensation R0.
The algebraic sign for the cycle parameter depth
determines the working direction. Note: A positive sign
bores in the direction of the positive spindle axis.
The entered tool length is the total length to the underside
of the boring bar and not just to the tooth.
When calculating the starting point for boring, the TNC
considers the tooth length of the boring bar and the
thickness of the material.
- User’s Manual 1
- HEIDENHAIN 1
- Conversational Format 1
- Intended Area of Application 5
- Contents 7
- 1 Introduction ..... 27 9
- HEIDENHAIN TNC 320 11 11
- 5 Programming: Tools ..... 95 14
- 12 MOD Functions ..... 419 24
- Introduction 27
- 1.1 The TNC 320 28
- 1.2 Visual Display Unit and 29
- Operating Panel 29
- Operating panel 30
- 1.3 Operating Modes 31
- 1.4 Status Displays 33
- 1.5 Accessories: HEIDENHAIN 37
- 3-D Touch Probes and 37
- Electronic Handwheels 37
- Manual Operation and 39
- 2.1 Switch-On, Switch-Off 40
- 2.2 Moving the Machine Axes 42
- 2.2 Moving the Machine Axes 42
- Entering values 45
- 2.4 Datum Setting (Without a 47
- 3-D Touch Probe) 47
- Positioning with Manual 49
- Data Input (MDI) 49
- Simple Machining Operations 50
- Fundamentals of NC 53
- File Management 53
- Programming Aids 53
- 4.1 Fundamentals 54
- 4.2 File Management: 59
- Fundamentals 59
- Screen keypad 60
- Data backup 60
- Directories 61
- Calling the file manager 63
- Creating a new directory 65
- Copying a single file 66
- Copying a directory 66
- Deleting a file 67
- Deleting a directory 67
- Marking files 68
- Renaming a file 69
- File sorting 69
- Additional functions 69
- The TNC in a network 73
- USB devices on the TNC 74
- Define the blank: BLK FORM 75
- Creating a new part program 76
- Actual position capture 79
- Editing a program 80
- The TNC search function 83
- 4.5 Interactive Programming 85
- Graphics 85
- Block number display ON/OFF 86
- Erasing the graphic 86
- 4.6 Adding Comments 87
- Operation 88
- 4.8 The Error Messages 90
- Programming: Tools 95
- Feed rate F 96
- Spindle speed S 97
- 5.2 Tool Data 100
- TOOL CALL 110
- 5.3 Tool Compensation 111
- Programming: 115
- Programming Contours 115
- 6.1 Tool Movements 116
- 6.2 Fundamentals of Path 117
- Functions 117
- 6.3 Contour Approach and 121
- Departure 121
- APPR LCT 125
- 6.4 Path Contours—Cartesian 128
- Coordinates 128
- Corner rounding RND 130
- Circle center CC 131
- 8 Feed rate F 134
- 8 Miscellaneous function M 134
- 6.5 Path Contours—Polar 139
- Straight line LP 140
- Helical interpolation 141
- 8 Direction of rotation DR 142
- Example: Helix 144
- HEIDENHAIN TNC 320 145 145
- 12 CALL LBL 1 REP 24 145
- 13 DEP CT CCA180 R+2 145
- 6.6 Path Contours—FK Free 146
- Contour Programming 146
- Initiating the FK dialog 149
- Pole for FK programming 149
- Input possibilities 151
- Auxiliary points 154
- Relative data 155
- Example: FK programming 1 157
- Example: FK programming 2 158
- Miscellaneous Functions 163
- 7.1 Entering Miscellaneous 164
- Functions M and STOP 164
- Program Run Control, Spindle 166
- 7.3 Programming Machine 167
- Referenced Coordinates: M91/ 167
- Contouring Behavior 169
- Machining open contours: M98 171
- Delete basic rotation: M143 175
- NC stop: M148 176
- Rotary Axes 177
- Programming: Cycles 181
- 8.1 Working with Cycles 182
- Thread Milling 186
- DRILLING (Cycle 200) 188
- REAMING (Cycle 201) 190
- BORING (Cycle 202) 192
- BACK BORING (Cycle 204) 196
- UNIVERSAL PECKING (Cycle 205) 198
- BORE MILLING (Cycle 208) 201
- (Cycle 206) 203
- NEW (Cycle 207) 205
- 8 Pitch Q239 206
- THREAD MILLING (Cycle 262) 211
- (Cycle 263) 213
- circular 217
- (Cycle 265) 221
- Example: Drilling cycles 229
- Studs and Slots 231
- POCKET MILLING (Cycle 4) 232
- POCKET FINISHING (Cycle 212) 234
- STUD FINISHING (Cycle 213) 236
- CIRCULAR POCKET (Cycle 5) 238
- 8 Clockwise 239
- Patterns 253
- CIRCULAR PATTERN (Cycle 220) 254
- LINEAR PATTERN (Cycle 221) 256
- 8.5 SL Cycles 260
- Overview 289
- MULTIPASS MILLING (Cycle 230) 289
- RULED SURFACE (Cycle 231) 291
- FACE MILLING (Cycle 232) 294
- Example: Multipass milling 300
- DATUM SHIFT (Cycle 7) 303
- MIRROR IMAGE (Cycle 8) 307
- ROTATION (Cycle 10) 309
- SCALING FACTOR (Cycle 11) 310
- 8.8 Special Cycles 314
- Subprograms and 317
- Program Section 317
- 9.1 Labeling Subprograms and 318
- Program Section Repeats 318
- 9.2 Subprograms 319
- 9.3 Program Section Repeats 320
- 9.4 Separate Program as 321
- Subprogram 321
- 8 Press the PROGRAM soft key 322
- 9.5 Nesting 323
- 9.6 Programming Examples 326
- Q Parameters 333
- 10.1 Principle and Overview 334
- Example NC blocks 336
- Mathematical Operations 337
- 10.4 Trigonometric Functions 339
- 10.5 Calculating Circles 341
- 10.6 If-Then Decisions with 342
- Abbreviations used: 343
- 10.7 Checking and Changing 344
- 10.8 Additional Functions 345
- Commands 365
- A Transaction 366
- Programming SQL commands 368
- Overview of the soft keys 368
- SQL BIND 369
- SQL SELECT 370
- SQL FETCH 373
- SQL UPDATE 374
- SQL INSERT 374
- SQL COMMIT 375
- SQL ROLLBACK 375
- Entering formulas 376
- Rules for formulas 378
- Programming example 379
- 10.11 String Parameters 380
- 10.11 String Parameters 380
- Active tool radius: Q108 388
- Tool axis: Q109 388
- 10.13 Example Program 391
- Test Run and Program 399
- 11.1 Graphics 400
- Working Space 407
- 11.4 Test Run 409
- 11.5 Program Run 411
- 11.6 Automatic Program Start 416
- 11.7 Optional Block Skip 417
- 11.8 Optional Program-Run 418
- Interruption 418
- MOD Functions 419
- 12.1 MOD Functions 420
- 12.2 Software Numbers 422
- 12.3 Position Display Types 423
- 12.4 Unit of Measurement 424
- 12.4 Unit of Measurement 424
- 12.5 Display Operating Times 425
- 12.6 Entering Code Numbers 426
- Function 427
- Setting the RS-232 interface 427
- Set the protocol (protocol) 427
- Set the data bits (dataBits) 428
- Parity check (parity) 428
- Software for data transfer 430
- 12.8 Ethernet Interface 432
- Touch Probe Cycles in 439
- Electronic Handwheel 439
- 13.1 Introduction 440
- Displaying calibration values 443
- 13.3 Compensating Workpiece 444
- Misalignment 444
- Displaying a basic rotation 445
- To cancel a basic rotation 445
- 3-D Touch Probe 446
- Circle center as datum 448
- Editing tool-probe tables 453
- 13.7 Automatic Workpiece 454
- Measurement 454
- Tables and Overviews 459
- 14.1 Machine-Specific User 460
- Parameters 460
- Cable for the Data Interfaces 464
- Non-HEIDENHAIN devices 465
- 14.3 Technical Information 466
- Table of Cycles 477
- Comparison: User functions 481
- Comparison: Cycles 483
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