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Flipping a part

How do you turn a part upside down and maintain yur past alignments? Is there a way to stitch things together or do you have to run 2 separate programs? Can't find anything in the hel file on this.
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  • There are two things I normally have done that fix this situation for me:

    1: In the past, I have set up my parts the same way every time, on a peg plate, with fixturing, always putting the pegs in the same holes. This allows me to perform a DCC alignment in the beginning, and, if I have to flip a part, I always set the machine to do another DCC alignment, as a part of the program. This way, the operator doesn't have to actually DO anything, except flip the part and make sure it looks like the picture. I also try to set my fixturing up so that if a measured surface has to relate to another surface, then it will be accessible from the first fixture location, or subsequent fixture locations. I haven't ran across a part yet that I can't order my program in a such way as to allow me to get every dimension and correlation, by simply turning the part, and realigning. Even if I have to use a V-Block or vise, if I fixture my v-block or vise the same way, and place stops in a way that they always are back in the same spot, it still works.

    or

    2: since a large number of the parts I am doing for my current employer are circular parts, this company uses a machine lathe chuck, mounted to the surface plate, with a recalled global alignment done to the tops of an interchangeable pin set. That way, the center of the alignment is ALWAYS at the same exact location, no matter if the part is flipped or not.

    Hope this helps...
Reply
  • There are two things I normally have done that fix this situation for me:

    1: In the past, I have set up my parts the same way every time, on a peg plate, with fixturing, always putting the pegs in the same holes. This allows me to perform a DCC alignment in the beginning, and, if I have to flip a part, I always set the machine to do another DCC alignment, as a part of the program. This way, the operator doesn't have to actually DO anything, except flip the part and make sure it looks like the picture. I also try to set my fixturing up so that if a measured surface has to relate to another surface, then it will be accessible from the first fixture location, or subsequent fixture locations. I haven't ran across a part yet that I can't order my program in a such way as to allow me to get every dimension and correlation, by simply turning the part, and realigning. Even if I have to use a V-Block or vise, if I fixture my v-block or vise the same way, and place stops in a way that they always are back in the same spot, it still works.

    or

    2: since a large number of the parts I am doing for my current employer are circular parts, this company uses a machine lathe chuck, mounted to the surface plate, with a recalled global alignment done to the tops of an interchangeable pin set. That way, the center of the alignment is ALWAYS at the same exact location, no matter if the part is flipped or not.

    Hope this helps...
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