Angle-adjustable machining tool

The invention discloses an angle-adjustable machining tool. The angle-adjustable machining tool comprises a top plate (1), a hinge (2), a supporting body (3), an angle adjusting device (4) and an electric control system (5), wherein the electric control system (5) controls a coaxial motor (4.7) of the angle adjusting device (4) to start by inputting an angle needing to be adjusted, a turbine box (4.6) of a screw jack (4.1) is driven through a coupler (4.9), further a screw rod (4.4) is driven to rotate, and the variation of the angle of the top plate (1) is achieved; the variation of the angle is accurately controlled through the feedback of an angle sensor (2.1). The angle of the top plate of the angle-adjustable machining tool can be changed according to drawing requirements of different parts, and therefore the generality of parts with different machining angles is achieved, and enterprise cost is lowered. Due to the fact that the screw jack has a thread self-locking function, a special positioning locking