Groove milling clamp of gantry numerical control milling machine

The utility model provides a milling groove clamp of a gantry numerical control milling machine, which relates to the technical field of numerical control milling machines and comprises a workbench, a sleeve workpiece body is arranged at the center of the top of the workbench, and a clamping mechanism is arranged at the top of the workbench. According to the sleeve workpiece body clamping device, when the sleeve workpiece body clamping device is used, a manual screwing bolt is manually rotated, two L-shaped clamping plates are detached, then a motor is started to drive a gear to rotate, then two racks are driven to move relatively, two clamping blocks are driven by two fixing plates to move relatively, a sleeve workpiece body is clamped and fixed, and the contact area with the sleeve workpiece body is increased; and under the cooperation of the multiple anti-slip strips, the friction force is increased, the clamping tightness is improved, and therefore the clamping effect is achieved. 本实用新型提供一种龙门数控铣床的铣槽夹具，涉及数