A person who is sexually aroused by machines. Also, someone who is sexually attracted to machines. A person who forms a loving attachment to a machine.
A mechanophiliac might be sexually attracted to or aroused by robots, androids, computers, fruit machines, lawn-mowers, cars or domestic appliances such as washing machines.
Edward: "There are moments way out in the middle of nowhere when I see a little parked car and I swear it needs lovin."
Me: "Dude, you're a total mechaphiliac!"