Numerical control expanding machine

The utility model discloses a numerical control expanding machine which comprises a box body, a supporting arm and a placing plate, a driving motor is installed at the top in the box body through an installation frame, lead screws are installed at the two ends in the box body through bearings, the outer sides of the lead screws are sleeved with internal thread sliding sleeves, the supporting arm is fixed to the outer side of each internal thread sliding sleeve through a bolt, and the placing plate is arranged on the supporting arm. An air cylinder is mounted on one side of the supporting arm through a mounting frame, a lower clamping plate is fixed to an output shaft at the top of the air cylinder through a bolt, and an upper clamping plate is fixed to the top of the air cylinder through a bolt. The device is simple in structure and convenient to operate, and can keep a semi-finished coil in a horizontal state, so that the semi-finished coil cannot deform during expansion. 本实用新型公开了一种数控涨型机，包括箱体、支撑臂和放置板，所述箱体内顶部