Tube hole stamping process for air conditioner radiator tube plate

The invention discloses a tube hole stamping process for an air conditioner radiator tube plate. The tube hole stamping process is characterized in that a servo stamping machine and a stamping die toperform stamping on the air conditioner radiator tube plate so as to form copper tube passing holes, the stamping adopts three intermittent stamping, and the pressure of the first stamping, the pressure of the second stamping and the pressure of the third stamping sequentially increases. By the method using the servo stamping machine with adjustable three-stage speed, the stamped holes are consistent in size, smooth and free of burrs, and a copper tube can penetrate the tube plate. 本发明公开的种空调散热器管板上的管孔冲压工艺，其是利用伺服冲床和冲孔模来在空调散热器管板上冲压成型铜管通过孔，其冲压成型方式为三次间歇冲压，其中第次冲压压力、第二次冲压压力和第三次冲压压力依次递增。本发明采用伺服冲床冲孔时三级速度可调，利用冲孔模来在空调散热器管板上冲压成型铜管通过孔，其冲压成型方式为三次间歇冲压。其冲出来的孔大小致且光滑，没有毛刺，彻底解决了铜管穿管板的瓶颈。