Clamping device for machining and grinding mechanical parts

The utility model discloses a clamping device for machining and polishing mechanical parts, which belongs to the technical field of part polishing and comprises a base, a guide column is fixedly connected to the front of the base, a polishing table is slidably connected to the guide column, an adjusting device is fixedly connected to the upper portion of the base, and a workbench is fixedly connected to the adjusting device. A clamping table is installed on the workbench, a fixing bolt is rotationally connected to the workbench, a box body is fixed to the clamping table, sliding grooves are formed in the two sides of the clamping table, a positioning groove is formed in the clamping table, and fixing devices are slidably connected into the sliding grooves. According to the clamping device for machining and grinding of the mechanical parts, through the fixing device capable of sliding in the sliding groove, different box bodies are clamped and fixed by changing the position of the fixing device, all the surfac