The utility model discloses a
crankshaft machining and
polishing device. The
crankshaft machining and
polishing device comprises a
workbench, a moving mechanism and a rotating mechanism are arranged at the upper end of the
workbench, a fixing frame is arranged at the upper end of the moving mechanism, the fixing frame is fixed to a
polishing mechanism, the polishing mechanism comprises a rotating motor, the output end of the rotating motor is connected with a rotating wheel, the rotating wheel is connected with an
abrasive belt, and the
abrasive belt is connected with the rotating motor. A downward pressing
assembly is arranged on the upper end face of the fixing frame and comprises a threaded rotating rod, and a pushing plate is installed at the lower end of the threaded rotating rod. According to the
crankshaft machining and polishing device, local
abrasive belts can be tightly attached to the crankshaft through the downward pressing
assembly, gaps are prevented from being formed between the abrasive belts and the crankshaft, in the
actual use process, the threaded rotating rod is rotated to drive the pushing plate to press downwards, and compared with manual handheld pressure adjustment, the polishing efficiency is greatly improved. In this way, the abrasive belt can be better attached to the crankshaft, and therefore the better polishing effect is achieved.