ISO programming
G209
G209
Refer to your machine manual.
Machine and control must be specially prepared by the machine manufacturer for use of this cycle.
This cycle is effective only for machines with servo-controlled spindle.
The tool machines the thread in several passes until it reaches the programmed depth. You can define in a parameter whether the tool is to be retracted completely from the hole for chip breaking.
For tapping, the spindle and the tool axis are always synchronized with each other. Synchronization may take place while the spindle is stationary.
If you do not change any dynamic parameters (e.g., set-up clearance, spindle speed,...), it is possible to later tap the thread to a greater depth. However, make sure to select a set-up clearance Q200 that is large enough so that the tool axis leaves the acceleration path within this distance.
Help graphic | Parameter |
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Q200 Set-up clearance? Distance between tool tip and workpiece surface. This value has an incremental effect. Input: 0...99999.9999 or PREDEF | |
Q201 Depth of thread? Distance between workpiece surface and root of thread. This value has an incremental effect. Input: –99999.9999...+99999.9999 | |
Q239 Pitch? Pitch of the thread. The algebraic sign differentiates between right-hand and left-hand threads: += right-hand thread – = left-hand thread Input: –99.9999...+99.9999 | |
Q203 Workpiece surface coordinate? Coordinate on the workpiece surface referenced to the active datum. This value has an absolute effect. Input: –99999.9999...+99999.9999 | |
Q204 2nd set-up clearance? Distance in the tool axis between tool and workpiece (fixtures) at which no collision can occur. This value has an incremental effect. Input: 0...99999.9999 or PREDEF | |
Q257 Infeed depth for chip breaking? Incremental depth at which the control performs chip breaking. This procedure is repeated until DEPTH Q201 is reached. If Q257 equals 0, the control will not perform chip breaking. This value has an incremental effect. Input: 0...99999.9999 | |
Q256 Retract dist. for chip breaking? The control multiplies the pitch Q239 by the programmed value and retracts the tool by the calculated value during chip breaking. If you enter Q256 = 0, the control retracts the tool completely from the hole (to set-up clearance) for chip breaking. Input: 0...99999.9999 | |
Q336 Angle for spindle orientation? Angle to which the control positions the tool before machining the thread. This allows you to re-cut the thread, if required. This value has an absolute effect. Input: 0...360 | |
Q403 RPM factor for retraction? Factor by which the control increases the spindle speed—and therefore also the retraction feed rate—when retracting from the drill hole. Maximum increase to maximum speed of the active gear stage. Input: 0.0001...10 |
NC programs contained in this User's Manual are suggestions for solutions. The NC programs or individual NC blocks must be adapted before being used on a machine.
Some NC programs depend on the machine kinematics. Adapt these NC programs to your machine kinematics before the first test run.
In addition, test the NC programs using the simulation before the actual program run.
With a program test you determine whether the NC program can be used with the available software options, the active machine kinematics and the current machine configuration.
11 CYCL DEF 209 TAPPING W/ CHIP BRKG ~ | ||
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12 CYCL CALL |
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