The invention relates to the technical field of groove
machining methods, and discloses a groove
machining method for a workpiece with a fillet, which comprises the following steps: S1,
machining a groove on a straight edge of the workpiece on a planer; s2, the workpiece treated in the step S1 is taken down, and then a straight slope opening in the workpiece is checked through a scale; s3, a machining platform is erected on the
machine tool rotating face of the
floor type boring and milling
machine; s4, positioning explorators are arranged on the two sides of the machining platform; s5, an arc
explorator is manufactured, and the arc
explorator is installed on the machining platform; and S6, the workpiece is placed on a machining platform, the purposes of not adopting a
numerical control machining center and shortening the machining period are achieved through the machining mode that a planer is adopted for machining a straight edge of the workpiece and a
floor type boring and milling
machine is adopted for machining a round corner groove of the workpiece, and a corresponding arc profile modeling is manufactured according to the size and the shape of the round corner of the workpiece. When the
floor type boring and milling machine carries out groove machining, the round corner of a workpiece can be supported.