German SdKfz 10/4 halftrack vehicle with 2-cm FlaK 38 gun, somewhere in the Soviet Union, Nov-Dec 1943

SdKfz 10/4 halftrack with 2-cm FlaK 38

German Panzer II tank and a 2-cm anti-aircraft gun at a position overlooking a steel bridge, Russia, summer 1941

Panzer II and a 2-cm Anti-Aircraft Gun

If I understand German language of that page correctly, these kind of bulldozer panzers were used as parts of fire brigades that cleared rubble created by Allied air raids.

Panther with the plow was only used in clearing street in probably Nuremberg it was somwhere speculated that this Panther D was converted by MAN during an overhaul because there's no gun 
some other tanks (a few P III and P IV, not the VI, writing error in the german text of the picture) 
were also used with a plow, mainly used by fire brigades 

As far as I know it there was no usage of such tanks in combat units but as always with the german Wehrmacht, You learn every day something new about it.