| 摘要 |
PURPOSE: A device for punching holes on a pole guide bush and a device for manufacturing the pole guide bush are provided to simultaneously form a fixing hole and a U-shaped hole on the pole guide bush and to enable to simplify a manufacturing process. CONSTITUTION: A device for punching holes on a pole guide bush comprises a core(123) and a core mold(121). The core is formed to be fixed so that the pole guide bush is vertically fitted into the core. The core mold punches holes around the center, thereby forming a U-shaped hole and a fixing hole on the pole guide bush. The core mold includes a core unit(122) and a hole forming mold(124). |
