The invention discloses a wall surface
trepanning device for
civil engineering installation and a construction method thereof. The wall surface
trepanning device comprises a device main body, a lifting device is arranged on the device body, the top of the lifting device is fixed to a horizontally-arranged lifting plate, a reciprocating driving motor is installed on the lifting plate, a driving shaft of the reciprocating driving motor is coaxially connected with a rotating plate, a
trepanning depth adjusting plate is fixed to the rotating plate, a long-strip-shaped fixing groove is formed in the trepanning depth adjusting plate, and a
threaded rod is arranged in the fixing groove. The
threaded rod is connected with a driving shaft of the
servo motor and is in threaded connection with a fixing block, the fixing block is fixedly connected with an adjusting plate, the adjusting plate is provided with an annular sliding groove, a sliding block is slidably connected into the sliding groove and fixed to a swing rod, a
drill bit is fixed to the end, away from the sliding block, of the swing rod, and the horizontal position of the swing rod is limited by a lifting device. The device is reasonable in structural design, and the hole opening depth can be adjusted; the
operation mode of the drilling
machine is similar to that of manual operation, and the drilling effect is good.