complex threading on 828d

Results 1 to 2 of 2

Thread: complex threading on 828d

  1. #1
    Member
    Join Date
    Aug 2005
    Location
    United States
    Posts
    29
    Downloads
    0
    Uploads
    0

    Default complex threading on 828d

    Hi,

    One of the things my company specializes in is complex threading. We've had great success doing that using FANUC's controls
    Recently we acquired a large flat bed lathe with an 828D control. My though process was that if I like Heidenhain ( one running one of our boring mills) Sinumeric can't be that far off.

    Now im stuck, as im trying to machine a rope groove on a large cable drum, and it seems nothing is working.

    The CYCLE 99 is great, but seems to follow just the center of the rope groove path. Shifting both X and Z-start ( as I would do on a G code machine) isn't working.
    I need to code several lines of different X and Z starts to profile the large R0.5468 groove.
    The control isn't able to read the G76 properly either, hence i cant use it

    Here's an example of the SINUMERIC code:


    CYCLE99(0.2667,51.504,-41.5,,0,0.3,0.5468,0,0,-70,1,0,1.2,1210201,4,0.5,0.547,0.5,0,0,1,0,0,3,,,, 2,1001)
    CYCLE99(-0.2667,51.504,-41.5,,0,0.3,0.5468,0,0,-70,1,0,1.2,1210201,4,0.5,0.547,0.5,0,0,1,0,0,3,,,, 2,1001)
    CYCLE99(0.2608,51.484,-41.5,,0,0.3,0.5468,0,0,-70,1,0,1.2,1210201,4,0.5,0.547,0.5,0,0,1,0,0,3,,,, 2,1001)
    CYCLE99(-0.2608,51.484,-41.5,,0,0.3,0.5468,0,0,-70,1,0,1.2,1210201,4,0.5,0.547,0.5,0,0,1,0,0,3,,,, 2,1001)
    CYCLE99(0.2543,51.464,-41.5,,0,0.3,0.5468,0,0,-70,1,0,1.2,1210201,4,0.5,0.547,0.5,0,0,1,0,0,3,,,, 2,1001)
    CYCLE99(-0.2543,51.464,-41.5,,0,0.3,0.5468,0,0,-70,1,0,1.2,1210201,4,0.5,0.547,0.5,0,0,1,0,0,3,,,, 2,1001)


    THis is what I'd do coding in G76:

    ; pass #1
    G00 X52.6 Z+.4971
    G76 P010100 Q00 R00
    G76 X51.07 W-5 R0 P6000 Q6000 F1.2
    ; pass #2
    G00 X52.6 Z-.4971
    G76 P010100 Q00 R00
    G76 X51.07 W-5 R0 P6000 Q6000 F1.2
    ; pass #3
    G00 X52.6 Z+.473
    G76 P010100 Q00 R00
    G76 X51.05 W-5 R0 P6000 Q6000 F1.2
    ; pass #4
    G00 X52.6 Z-.473
    G76 P010100 Q00 R00
    G76 X51.05 W-5 R0 P6000 Q6000 F1.2
    ; ….AND SO ON , as many times as I need to complete the profile


    Any help would be greatly appreciated ,

    Peter

    Similar Threads:


  2. #2
    Member
    Join Date
    Aug 2005
    Location
    United States
    Posts
    29
    Downloads
    0
    Uploads
    0

    Default Re: complex threading on 828d

    ...BUMP...



Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

complex threading on 828d

complex threading on 828d