Bending device with angle detection function for machining special-shaped crank arm

The invention discloses a bending device with an angle detection function for machining a special-shaped crank arm. The bending device specifically comprises a base, the special-shaped crank arm, a mechanical gripper, a workbench and clamping plates, wherein a control box is arranged at one side of the interior of the base; a supporting plate is fixed to one side, away from the control box, of thetop of the base; a movable rail is arranged in the middle of one side, close to the control box, of the supporting plate; and a movable plate is arranged at one side, close to the control box, of themovable rail. According to the bending device with the angle detection function for machining the special-shaped crank arm, through the arrangement of the clamping plates and limiting rods, when used, the two limiting rods penetrate through limiting holes of the special-shaped crank arm to position and primarily limit the special-shaped crank arm; circular piece grooves matched with semi-circularpieces of the special-shap