don't know your class but you can hide behind the pipe on the left. it will protect you for a short time, then if soldier or zero throw your stuff on the other side of the pipe. I think the 5 second baby maker video was faked, I have tried multiples and they just do not work fast enough. To get the robots use singularity slag grenades, it will cluster them (and with zero's bore skill it is an easy kill). The problem though is once dude's support is gone or he is at about 1/3rd health he will jump attack you and then his AoE repeatedly. At that point a babymaker + 33% second wind time may allow you to get him. And some people have posted about using teslas. Done that, don't bother. Think those are also fake. Anyway I hope you kept the sand hawk smg from the dlc, that is one of the best for the sheer number of bullets it puts out. I use that with the bee shield and bore skill and slag singularities and it is still difficult.
If you can stand up to those extra robots you can use them to block line of sight from the nova he does.