Range-extending automatic moving machining device

The utility model relates to a range-extending automatic moving machining device, and belongs to the field of machining equipment. A linear guide rail is installed on the right side of the support, a sliding block is in sliding fit with the linear guide rail, a sliding block base is fixed to the sliding block, the sliding block base is connected with one end of a movable connector, and the other end of the movable connector is connected with one end of an extension rod. The other end of the extension rod is connected to a piston rod of the double-acting air cylinder through threads, a movable support is fixed to the sliding block base, a limiting block is installed at the right end of the support, positioning blocks are installed on the support at intervals in the axial direction of the double-acting air cylinder, grooves are machined in the support at intervals, and pneumatic carrier roller assemblies are installed in the grooves. The pneumatic carrier roller assembly comprises a vertically-installed thin ai