Rockwell-automation 8520-GUM 9/Series CNC Grinder Operation and Progra Manual de usuario Pagina 552

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Surface Grinding Fixed Cycles
Chapter 16
16-2
Figure 16.2 illustrates the reciprocation, plunge, and crossover motions of
a typical surface grinding cycle (G83 Incremental Plane grinding in this
case) .
Figure 16.2
Reciprocation, Cr ossover, and Plunge Motions
Crossover
Plunge pick at
secondary reversal
(executed after the
crossover axis
returns to its
secondary reversal
coordinate)
PlungePlunge
pickat
primary
reversal
Spark --outpasses
Crosspickat
secondaryreversal
Reciprocation
Sec.
rev.
Primary
reversal
Cross pick
a
primary
reversal
START
Magnetictable
At this point, the
crossover moves are
executed in reverse
until the crossover
axis is at its start
coordinate
12046-I
Modality and Programming
These surface grinding cycles are modal. Once programmed, the cycle is
executed in each subsequent block that contains the appropriate parameters
and param eter values. The G codes corresponding to these cycles do not
have to be programmed in each block.
Typically crossover and plunge axis motions are coordinated with the
motion of a reciprocating axis.
You can access Grinder Prompts through the Quick-view screens
(described in chapter 5) to simplify programming.
16.1
Surface Grinding
Considerations
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