Steel bridge gash repair drilling machine with right-angle spring

The invention relates to a steel bridge gash repair drilling machine with a right-angle spring. The steel bridge gash repair drilling machine comprises a drill bit, a machine body and a rotating device mounted on the machine body. The drill bit is linked with the rotating device sequentially through a drill bit clamp, a spring and a sleeve. The spring is sleeved to the periphery of a right-angle mandrel fixedly connected with the machine body. Compared with the prior art, the steel bridge gash repair drilling machine can guarantee drilled holes horizontal since using space of the drill bit is reduced and the drill bit can be guaranteed to be horizontally close to a top plate as far as possible. The common drill bit, the drill bit clamp and the high-intensity spring are assembled, thereby being simple to mount and easier to replace. Constructors can operate more easily and labor intensity is effectively reduced.