ISO programming
G139
G139
Refer to your machine manual.
This function must be enabled and adapted by the machine manufacturer.
This cycle enables you to machine a contour on a cylindrical surface. The contour to be machined is programmed on the unrolled surface of the cylinder. With this cycle, the control adjusts the tool in such a way that, with radius compensation active, the walls of the milled contour are always parallel to the cylinder axis.
Describe the contour in a subprogram that you program with Cycle 14 CONTOUR.
In the subprogram you always describe the contour with the coordinates X and Y, regardless of which rotary axes exist on your machine. This means that the contour description is independent of your machine configuration. The path functions L, CHF, CR, RND and CT are available.
Unlike in Cycles 28 and 29, in the contour subprogram, you define the contour actually to be machined.
The cylinder must be set up centered on the rotary table. Set the preset to the center of the rotary table.
This cycle performs an inclined machining operation. To run this cycle, the first machine axis below the machine table must be a rotary axis. In addition, it must be possible to position the tool perpendicular to the cylinder surface.
Help graphic | Parameter |
---|---|
Q1 Milling depth? Distance between cylindrical surface and contour floor. This value has an incremental effect. Input: –99999.9999...+99999.9999 | |
Q3 Finishing allowance for side? Finishing allowance in the plane of the unrolled cylindrical surface. This allowance is effective in the direction of the radius compensation. This value has an incremental effect. Input: –99999.9999...+99999.9999 | |
Q6 Set-up clearance? Distance between the tool face and the cylindrical surface. This value has an incremental effect. Input: –99999.9999...+99999.9999 or PREDEF | |
Q10 Plunging depth? Tool infeed per cut. This value has an incremental effect. Input: –99999.9999...+99999.9999 | |
Q11 Feed rate for plunging? Traversing feed rate in the spindle axis Input: 0...99999.9999 or FAUTO, FU, FZ | |
Q12 Feed rate for roughing? Traversing feed rate in the working plane Input: 0...99999.9999 or FAUTO, FU, FZ | |
Q16 Cylinder radius? Radius of the cylinder on which the contour will be machined. Input: 0...99999.9999 | |
Q17 Dimension type? deg=0 MM/INCH=1 Program the rotary axis coordinates in degrees or mm (inches) in the subprogram. Input: 0, 1 |
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 39 CYL. SURFACE CONTOUR ~ | ||
| ||
| ||
| ||
| ||
| ||
| ||
| ||
|