Hi Daniel -
This is a case where a Dispatch utility can be very handy.
All you need to do is make use of the string functions to create the new path and then use the Copy and Delete file commands to do the rest.
I have attached the sample dispatch utility I used to reproduce your case.
I set the task to save the DWG file in the source folder with the source filename.
Source Folder Path\Source File Name
moveconverteddwg.acn.zip 490 bytes
Thanks for help