Deburring machine and clamping mechanism thereof

The utility model discloses a deburring machine and a clamping mechanism of the deburring machine. The clamping mechanism comprises a clamping device (21) and is characterized in that the clamping mechanism further comprises a universal floating mechanism (22) connected to the position below the clamping device (21) and supporting a workpiece (100), so that the workpiece (100) can move in a flow-up mode under the action of additional external force of a grinding mechanism of the deburring machine in the decurring process. By the adoption of the structure, in the grinding process, if the grinding mechanism is affected by manufacturing tolerance, system jitter and the like to apply external force on the workpiece, the universal floating mechanism enables the workpiece to incline within a small range along with the external force, or move vertically downwards, compared with the prior art, hard friction between the grinding mechanism and the workpiece is avoided, the unnecessary damage to the workpiece is avoided, and the machining quality of the workpiece is guaranteed.