Boring - Cycle86 - Siemens SINUMERIK 808D ADVANCED Programming And Operating Manual

9.4.9

Boring - CYCLE86

Programming
CYCLE86 (RTP, RFP, SDIS, DP, DPR, DTB, SDIR, RPA, 0, RPAP, POSS)
Parameters
Parameter Data type
RTP REAL
RFP REAL
SDIS REAL
DP REAL
DPR REAL
DTB REAL
SDIR INT
RPA INT
PSYS INT
RPAP REAL
POSS REAL
Function
The cycle supports the boring of holes with a boring bar.
The tool drills at the programmed spindle speed and feedrate velocity up to the entered drilling depth.
With boring 2, oriented spindle stop is activated once the drilling depth has been reached. Then, the programmed retraction
positions are approached in rapid traverse and, from there, the retraction plane.
CYCLE86 can be applied on a turning machine only with TRANSMIT in the G17 plane and with a driven tool. Fore more
information about TRANSMIT function, see Section "Milling on turned parts (TRANSMIT) (Page 61)" .
Sequence
Position reached prior to cycle start:
The drilling position is the position in the two axes of the selected plane.
The cycle creates the following sequence of motions:
● Approach of the reference plane brought forward by the safety clearance by using G0
● Traversing to final drilling depth with G1 and the feedrate programmed prior to the cycle call
● Dwell time to final drilling depth
● Oriented spindle stop at the spindle position programmed under POSS
● Traverse retraction path in up to three axes with G0
● Retraction in the boring axis to the reference plane brought forward by the safety clearance by using G0
● Retraction to the retraction plane with G0 (initial drilling position in both axes of the plane)
Explanation of the parameters
For the explanation of the parameters RTP, RFP, SDIS, DP, and DPR, see Section "Drilling, centering - CYCLE81
(Page 125)".
Programming and Operating Manual (Turning)
6FC5398-5DP10-0BA2, 06/2015
Description
Retraction plane (absolute)
Reference plane (absolute)
Safety clearance (enter without sign)
Final drilling depth (absolute)
Final drilling depth relative to the reference plane (enter without sign)
Dwell time at final drilling depth (chip breakage)
Direction of rotation
Values: 3 (for M3), 4 (for M4)
Retraction path along the 1st axis of the plane (incremental, enter with sign)
Internal parameter; only the default value 0 is possible
Retraction path in drilling axis (incremental, enter with sign)
Spindle position for oriented spindle stop in the cycle (in degrees)
143