Petroleum machine part fixing device

The utility model relates to the technical field of mechanical part fixing devices, and provides a petroleum mechanical part fixing device which comprises a base and electric push rods, the electric push rods are installed on the two sides of the top end of the base, guide structures are arranged at the corners of the top end of the base, and each guide structure comprises a guide seat, a guide groove and a guide rod. The guide seats are fixed to the corners of the top end of the base, guide grooves are formed in the guide seats, and guide rods are arranged in the guide grooves. The guide structure is arranged, the electric push rod is started, the electric push rod ascends and descends to drive the workbench to ascend and descend, the workbench ascends and descends to drive the guide rod to slide up and down in the guide seat, the workbench can be prevented from inclining in the ascending and descending process under the action of the guide seat, and the stable ascending and descending function of the device