Clamp for CNC machining of LED lamp

The utility model provides a clamp for CNC machining of an LED lamp. The clamp comprises a clamp bottom plate, a plurality of driving mechanisms, a plurality of pressing assemblies and a plurality of limiting bosses. The limiting boss is arranged on the upper end face of the clamp bottom plate and used for limiting the bottom of the workpiece. The driving mechanisms are divided into two sets, and the two sets of driving mechanisms are located on the same horizontal line and symmetrically arranged at the two ends of the limiting boss. The pressing assemblies are arranged on the two sets of driving mechanisms, each pressing assembly comprises a pressing block, a supporting block and a pressing plate, the pressing blocks are connected to the movable ends of the driving mechanisms, one ends of the supporting blocks are installed on the driving mechanisms, and the other ends of the supporting blocks are connected with the pressing blocks through the pressing plates; the two sets of driving devices are used for dri