Heidenhain CNC Pilot 4290 Manuel d'utilisateur télécharger pdf (Page 165)

HEIDENHAIN CNC PILOT 4290

153

4.11 Milling Cycles

Parameters

Q: Cycle type (= milling location)

■ Q=0: Milling center on the contour (without milling cutter

radius compensation)

■ Q=1—closed contour: inside milling

■ Q=1—with open contour: left in machining direction;

intersecting areas which are programmed in directly

successive contour elements are not machined.

■ Q=2—with closed contour: outside milling

■ Q=2—with open contour: right in machining direction;

Intersecting areas which are programmed in directly

successive contour elements are not machined.

■ Q=3 (only with open contours): The tool cuts from the left or

right of the contour depending on the “cutting direction H“

and the direction of tool rotation (see following table).

■ Q=4—with closed contour: inside milling

■ Q=4—with open contour: left in machining direction;;

Intersecting areas which are programmed in directly

successive contour elements are machined

■ Q=5—with closed contours: outside milling

■ Q=5—with open contours: right in machining direction;

Intersecting areas which are programmed in directly

successive contour elements are machined.

NS: Block number—beginning of contour section

■ Figures: Block number of the figure.

■ “Free contour“: First contour element (not starting point).

NE: Block number—end of contour section

■ Figures, closed contours: No input

■ Open contour: Last contour element

■ Contour consists of one element: Input unnecessary

H: Cutting direction—default: 0

■ H=0: Up-cut milling

■ H=1: Climb milling

I: (Maximum) infeed—default: Milling in one infeed

F: Infeed rate (depth infeed)—default: Active feed rate

E: Reduced feed rate for circular elements—default: Current

feed rate

R: Radius of approaching/departing arc—default: 0

■ R=0: Contour element is approached directly; feed to

starting point above the milling plane—then vertical plunge.

■ R>0: Tool moves on an approaching/departing arc that

connects tangentially to the contour element.

■ R<0 for inside corners: Tool moves on an approaching/

departing arc that connects tangentially to the contour

element.

■ R<0 for outside corners: Contour element is approached/

departed on a tangentially linear path

P: Milling depth

■ Milling, finishing—default: Milling depth from the contour

description

■ Deburring: Plunging depth of the tool.

K: Retraction plane—default: return to starting

position

■ Front or rear face: Retraction position in Z

direction

■ Lateral surface: Retraction position in X

direction (diameter)

B: Chamfer width for deburring the upper edges

(sign has no effect).

J: Preparation diameter (tool diameter from

machining):

■ Required for deburring of open contours.

■ Not required, if diameter of deburring tool =

diameter of milling tool.

D, V: Beginning, end of element number for figures

(only if partial figures are machined).

Element numbers for figures:

Direction of contour definition for figures:

Counterclockwise.

■ Rectangles, polygons and linear slots: The

“angle of orientation” (angle with respect to the

longitudinal axis, or to one side of a polygon)

points to the first contour element.

■ Circular slot: The larger arc is the first contour

element.

■ Full circle: The upper semicircle is the first

contour element.

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Heidenhain CNC Pilot 4290 Manuel d'utilisateur Page 165

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