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bmadsen1-Visitor
1-Visitor
November 30, 2016
Question

Lathe boring bar retract

  • November 30, 2016
  • 2 replies
  • 2456 views

All,

Every time I do an internal area turning sequence with a boring bar on our lathe it never retracts out of the bore to a clearance plane in the Z direction. And we have to customize and rely on our post processor to make sure the boring bar pulls out of the hole completely before it does a tool change. The boring bar will go to where it started in the X direction but not the Z direction.

Does anyone know of a tool parameter, config option, or anything else that we can change to make the boring bar retract in the Z direction?

Anything helps.

Thank you,

Brian


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2 replies

R
rlysy10-Marble
10-Marble
December 1, 2016

Hello Brian,

I think, that there is no parameter or config.pro option to directly solve your problem.

But you can specify the choice End point in Clearance tab. And mfg parameter END_MOTION set to Z_FIRST.

That is probably simpliest solution.

Rostislav

    B
    bmadsen1-VisitorAuthor
    1-Visitor
    December 1, 2016

    Rostislav,

    I believe you are correct that there is not a config option that would help me out.

    I tried the END_MOTION to all of the options and none of them work. Unless one of the other parameters need to be changed.

    Setting an end point in the clearance tab does work. It's just very inconvenient that you would have to add a point every single time an internal cutting tool was used. I understand that Area Turning is used for external turning as well and you would not have to send the tool to a starting z position after it's done cutting. But it wouldn't be that big of a deal if did go to the starting z position.

    Overall, I'm just asking around to see if anyone has a good way of solving a silly feature PTC has.

    Thanks,

    Brian

    S
    slolli10-Marble
    10-Marble
    December 12, 2016

    Like mentioned, it is easiest to populate a start point and end point in the Clearance tab. To make it even easier, set up your MFG start part with Datum Points out in the Z direction at your clearance plane. I set up several arond the OD of a revolved part and also an ID point as well (this one would be useful for the internal bores.

    M
    mrao1-Visitor
    1-Visitor
    December 14, 2016

    Hello~~

    I think your request only to define parameters then that can be reach you want of Z axis move.

    Please take a look below procedure to define your lathe sequence.

    I think you need to create a point for "Start" and "End" points reference which columns in Clearance of each sequence. Please follow below procedure.

     

     

    1, Please select point datum “Offset Coordinate System” to create a point (X100, Y0, Z150)

     

    1.jpg

    2.jpg

     

     

    2, “Start point” and “End point” are refer that point in the sequence.

       

    3.jpg

     

    3, Please define “START_MOTION” and “END_MOTION” parameters in your sequence. My opinion is internal tool with “START_MOTION”= Z_LAST and “END_MOTION”= Z_FIRST, external tool with “START_MOTION”= Z_FIRST and “END_MOTION”= Z_LAST.

       

    4.jpg

     

    Have a good day!!

    Mark Rao

     

     

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