Plastic pipeline fixing device stable in clamping

The utility model relates to the field of clamp tools, in particular to a plastic pipeline fixing device stable in clamping. The technical problems that an existing plastic pipeline fixing device is usually of a fixed clamping structure, the angle needs to be adjusted manually with an auxiliary mechanism in the operation process, and time and labor are wasted are solved, and compared with a traditional plastic pipeline fixing device, the plastic pipeline fixing device comprises a workbench module, a first clamping assembly, a second clamping assembly, a pipe body and foot columns. Through the arrangement of the first clamping assembly capable of moving and rotating and the arrangement of the second clamping assembly capable of moving and conducting auxiliary clamping, the device can be suitable for pipe bodies of different lengths and thicknesses, the first clamping assembly can be driven by the first driving motor to automatically rotate to adjust the angle, manual operation is not needed, and the machining