ダイラガーXV (Dairugger Fifteen)
The titular gattai mecha from the Kikou Kantai Dairugger XV anime series.
The heroic anime super robot consists of the largest number of separate mechas (Rugger 1 ~ Rugger 15). (Some evil or parody combined robots from other anime series have many more constitutive units).
Like so many other 70s~80s super robots, it was designed by industrial designer Murakami Katsushi.