Upright-horizontal type brake shoe outer arc grinding machine

The utility model discloses an upright-horizontal type brake shoe outer arc grinding machine which comprises a rack, wherein a horizontal grinding head, an upright grinding head and a rotary fixing device are respectively arranged on the rack; the rotary fixing device comprises a workpiece shaft; a clamp is connected with one end of the workpiece shaft; a rotation driving motor is connected with the other end of the workpiece shaft; the upright grinding head comprises an upright grinding head vertical feeding device and an upright grinding head horizontal feeding device; the upright grinding head vertical feeding device is connected with an upright grinding head assembly; the upright grinding head assembly comprises a cutter base; the cutter base is internally provided with a cutter shaft; a cutter head driving motor is connected with one end of the cutter shaft; the horizontal grinding head comprises a horizontal grinding head horizontal feeding device which is connected with a horizontal driving motor and a transmission box. After being clamped by the rotary fixing device, a brake shoe can be roughly grinded and finely grinded by using the upright grinding head and the horizontal grinding head respectively, so that the grinding precision can be greatly improved, the artificial errors can be effectively avoided, and the product production quality can be improved.