Ball-end milling cutter for machining complex curved surface

The utility model relates to a ball-end milling cutter for processing complex curved surfaces, which comprises a ball-end milling cutter head, a cutter handle and a cutter handle mounting seat, the ball-end milling cutter head is mounted on the cutter handle, the cutter handle is fixedly connected with the cutter handle mounting seat, the top of the ball-end milling cutter head is provided with a connecting groove, and the bottom of the connecting groove is fixedly connected with a first spring. A limiting block is fixedly connected to the top of the first spring, a tool bit mounting hole is formed in the right end of the tool handle, a limiting groove is formed in the tool handle, the limiting groove is formed in the top of the tool bit mounting hole and communicates with the tool bit mounting hole, and a tool retracting hole and a pressing hole are sequentially formed in the top of the tool handle from left to right. The bottom of the tool retracting hole is communicated with the tool bit mounting hole, and