and if you have python installed you could use this:
python code:
import os
partname=raw_input("part name: ")
x=int(raw_input("number of parts: "))
ext=raw_input("extention of part series: ")
c='+'.join([' %s%s.%s /B '%(partname,i+1,ext) for i in xrange(x)])
fileresult=raw_input("result file with extention: ")
c="copy"+c+fileresult+" /B"
os.system(c)