G87 drilling cycle <CYCLE BORE7(211)>


G87 boring canned cycle performs rapid approach to the safe level, work feedrate boring with spindle stop on hole depth level and manual retract to the safe plane level.

 

Img5_4_31_8

 

G87 cycle includes:

  • Rapid approach to the <Z safe> level.
  • Work feedrate travel to the <Z min> level.
  • <Spindle stop>. If oriented spindle stop is enabled (CLD [14] parameter), it is positioning the spindle in a given angular position and then tool shifts to specified small value of the X, Y and Z coordinates.
  • Manual retract to the <Safe plane> level.
  • Restore spindle rotation direction and speed.

 

Command:

CYCLE BORE7(211), A a, MMPM(315), N nm, F f, P p, T t

or

CYCLE BORE7(211), A a, MMPR(316), M nm, F f, P p, T t

 

Parameters:

Parameter

CLD array

Description

BORE7(211)

CLD[1]

CLD.Type

Cycle type 211 (BORE7).

a

CLD[2]

CLD.A

Hole depth in current measure units (mm or inches).

MMPM(315)

MMPR(316)

CLD[3]

CLD.MMPM

Feedrate measure units:

315 (MMPM) – mm per minute (inches per minute),

316 (MMPR) – mm per revolution (inches per revolution).

nm

CLD[4]

CLD.NM

Work feedrate value.

f

CLD[5]

CLD.F

Safe level.

 

CLD[6]

 

The value of tool shift for the X coordinate after oriented spindle stop at the bottom of the hole.

 

CLD[7]

 

The value of tool shift for the Y coordinate after oriented spindle stop at the bottom of the hole.

p

CLD[8]

CLD.P

Safe plane level.

 

CLD[9],

CLD[10]

 

Reserved.

t

CLD[11]

CLD.Top

Hole top level.

 

CLD[12]

 

The value of tool shift for the Z coordinate after oriented spindle stop at the bottom of the hole.

 

CLD[13]

 

The angular position of the spindle when stopping at the bottom of the hole (degrees)

 

CLD[14]

 

The state of the oriented spindle stop at the bottom of the hole: 0 - off, 1 - enabled.

 

 

 

See also:

Hole machining cycles <CYCLE>