The Terriers earned their place in the 12.30pm draw by seeing off Bradford City on Tuesday night.
A James Vaughan double was enough to knock last season’s finalists out with Huddersfield putting in an impressive shift against Phil Parkinson’s men.
Of course, Bradford’s incredible run to Wembley has left their Yorkshire rivals dreaming of emulating the achievement this time around.
Robins, however, is not one to get carried away and instead prefers to concentrate on the impressive nature of Town’s display on a night when they fielded a three-man defence.
The Huddersfield manager said: “I felt we were fluid in our formation. The three centre halves at the back have always got a chance of winning the ball when played up front.
“I didn’t think Bradford went as direct as maybe they have in the past. But for us it is about getting the ball and doing what I know we can do.
“I was delighted with how we did that. I thought we could see bits of what we are trying to do. The players are growing into it. Confidence came from the goal (when Vaughan put Town ahead on 42 minutes), as always happens.
“But that belief has to be carried over into the next game we play. The big test comes against QPR.
“Can we do similarly? I don’t think there should be any problem. It is all about belief and if the players believe in themselves like they did in the latter stages of the first half then we will be okay.
“We need to continue in the same vein as we are good at it. You can see the players are good at it and are capable. It will be an interesting game on Saturday as they are a good side. But it is a game we will relish.”
Asked about the chances of emulating Bradford and going all the way to Wembley, Robins laughed before adding: “You’re not going to say that, are you?
“No, seriously, we will take each game as it comes. We got through this round and we will look forward to whoever we get. I am just glad to be in the hat.”
Town’s win on Tuesday night means Robins and his players will go into Saturday’s home clash with QPR on a high.
Vaughan, in particular, will be full of confidence ahead of taking on the pre-season favourites for promotion from the Championship.
Not only did the summer signing score a rare goal from outside the penalty area against Bradford but he also powered an unstoppable header beyond Jon McLaughlin.
There were plenty of other encouraging signs, though, on Tuesday night with Jonathan Hogg putting in a tireless display on his home debut.
Adam Clayton also seemed to revel in a role that encouraged him to get forward and Vaughan hopes the home fans went home happy.
He said: “I thought they were great and created a great atmosphere. They gave me a great reception when I was taken off.”