Multi-channel LED ultraviolet curing device and method

The invention discloses a multi-channel LED ultraviolet curing device and a multi-channel LED ultraviolet curing method. The device comprises a water cooling part, a circuit part and an optical part, the water cooling part comprises a water cooling cavity cover plate, an elbow water pipe connector and a water cooling cavity base; the circuit part comprises a connector and a circuit board; the optical part comprises a light path part and a light structure part, the light path part is provided with a plurality of light path groups, each light path group comprises an ultraviolet LED module, a first convex lens, a second convex lens, a third convex lens and a light splitting rectangular prism, and the ultraviolet LED module is welded on a circuit board; the light structure part comprises a first lens base, a second lens base and a prism base, a plurality of tooth-shaped structures are arranged at the front end of the prism base, and a U-shaped notch for placing a workpiece needing to be machined is formed between