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标题: UG_POST OUTPUT "R" for FANUC [打印本页]

作者: jinly 时间: 2004-4-7 20:47
标题: UG_POST OUTPUT "R" for FANUC
Hi, experts

    I am developing a postprocessor for FANUC 18M ....and got the following problems:

   for moom_circular_move, I want to output the "R" instead of "I J", I am using R[$mom_arc_radius], and the output in correct format. but the problem is:

   When I am doing a cicular movement whose sweep angle (A) is greater than 180, then the machine will just go along the small arc (360 -A), which will cause serious problem, and hurt the part.

  so, in this case, it is better to use R = -$R, using the negative R value.

  Then the problem comes: How can i decide the sweep angle is greater or smaller than 180?  I can not find a parameter available, and how can I do the calculation?

  In CLSF file of IDEAS, we can see the Sweep angle for a circular move, is there a similar one in UG ?

  Here is BLOCK:

  BLOCK_TEMPLATE circular_move
  {
       G_cutcom[$mom_sys_cutcom_code($mom_cutcom_status)]\opt
       G_motion[$mom_sys_circle_code($mom_arc_direction)]\opt
       G_mode[$mom_sys_output_code($mom_output_mode)]
       X[$mom_pos(0)]
       Y[$mom_pos(1)]
       Z[$mom_pos(2)]
       R[$mom_arc_radius]
#       I[$mom_pos_arc_center(0) - $mom_prev_pos(0)]
#    J[$mom_pos_arc_center(1) - $mom_prev_pos(1)]
#    K[$mom_pos_arc_center(2) - $mom_prev_pos(2)]
       F[$feed]
#    S[$mom_spindle_speed]
  }

  

   I am so worrying about this problem, Please advise as soon as possible!

  Thanks and have a nice day!

Best regards

作者: jinly 时间: 2004-4-8 09:53
For more details, Please advise:

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