Rockwell-automation 8520-GUM 9/Series CNC Grinder Operation and Progra Manual de usuario descargar pdf (Pagina 571)

100

101

Surface Grinding Fixed Cycles

Chapter 16

16-21

Figure 16.6 shows the axis motions that make up the G85 continuous plane

grinding cycle. This figure assumes that the YZ plane (G19) is active.

Since the Y axis is plane axis 1 for G19, it is the plunge axis.

Figure 16.6

G85 Continuous Plane Grinding Motions

At this point, the crossover

move is executed in reverse

until the crossover axis is at

itsstartcoordinate

Spark --outpasses

Reciprocation

START

Crossover

Magnetictable

12050-I

Programming a G85 or G85.1 causes the control to execute a continuous

plane grinding cycle using three axes. “Continuous” refers to the fact that

instead of making cross pick moves, the crossover axis moves

continuously towards its endpoint as the reci procating axis moves back and

forth across the part. The G85.1 begins with a pre-dress operation prior to

the grind.

The G85 cycle dictates that the axis configured as axis one in the active

plane makes the plunge moves. The axis configured as axis two in the

active plane makes the crossover move, while any axis programmed that is

not in the active plane is the reciprocating axis. If reciprocation is already

active, it is not necessary to program a reciprocation axis in the G85 block.

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Rockwell-automation 8520-GUM 9/Series CNC Grinder Operation and Progra Manual de usuario Pagina 571

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