Rockwell Automation 8520-GUM 9/Series CNC Grinder Operation and Programming Manual Documentation Set User Manual
Page 566
Surface Grinding Fixed Cycles
Chapter 16
16-16
Important: It is the programmer’s responsibility to make sure that
the reciprocation moves extend beyond the part sufficiently such that
the plunge move can be completed before the wheel comes back in
contact with the part. Plunge moves begin as the reciprocation axis
decelerates. Therefore, feedrate, acceleration and deceleration should
be considered for all axes involved.
3.
The X axis moves to the secondary reversal point (I).
4.
The plunge pick move (Q) begins as the X axis decelerates to the
secondary reversal point.
5.
The reciprocation and plunge pick moves continue until the plunge
depth (Y) is reached.
6.
After the plunge depth (Y) is reached, reciprocation continues and
the programmed number of spark-out passes are executed.
The format for the G83 cycle is as follows:
G83X__I__Y__J__Z__K__R__Q__L__F__E__P__D__;
Table 16.C summarizes the G83 cycle parameters. For a detailed
description of these parameters, see the text below and page 16-8.
Table 16.C
G83 Cycle Parameters
Parameter:
Definition:
Default Value:
Possible Value:
Non-plane axis
2
reciprocation primary reversal point
from last cycle programmed
abs. or inc.
Reciprocation axis integrand
3
reciprocation secondary reversal point
from last cycle programmed
abs. or inc.
Plane axis 1
2
plunge depth
from last cycle programmed
abs. or inc.
Plane axis 1 integrand
2
plunge pick at start
from last cycle programmed
inc. only
Q
3
plunge pick at crossover
plunge pick at start
inc. only
Plane axis 2
2
crossover amount
from last cycle programmed
abs. or inc.
Plane axis 2 integrand
2
cross pick at primary reversal point
from last cycle programmed
inc. only
R
3
cross pick at secondary reversal point
cross pick at primary reversal
inc. only
L
3
number of spark-out passes
zero
zero to 999
F
2
plunge pick and cross pick feedrate
last feedrate programmed
valid F word
E
3
reciprocation feedrate
from last cycle or last F
valid F word
P
3 for G83 2 for G83.1
dress program number
from last cycle programmed
valid program number
D
3
number of auto-dress executions
zero
zero to 999
1
must be programmed
2
must have been programmed in some previous block if omitted
3
optional
16.5
G83 or G83.1 Incremental
Plane Grinding (Axis 1)