The Scottish pair sealed a 2-0 victory against Malaysia’s Chan Peng Soon and Lai Pei Jing.
Langridge and Mills eased past favourites Adcock and Ellis 2-0 as the two home nations featured in four of the day’s five bronze medal matches.
Gabby Adcock went one better than her husband Chris, as she and Smith came from behind to beat Malaysia’s Lim Loo Yin and Pei Jing in a marathon match 2-1.
England’s Rajiv Ouseph failed to add to the medal haul in the men’s singles, losing 2-1 to India’s Rajah Menuri Venkata Gurusaidutt.
In the final day of competition on Sunday, Kirsty Gilmour will become the first Scot to contest a women’s singles badminton final in the Commonwealth Games when she goes for gold against Canada’s Michelle Li.