Low thermal expansion suspension frame of precision machining apparatus

Abstract

A low thermal expansion suspension frame of precision machining apparatus is disclosed. The precision machining apparatus has a base, a column, a spindle head, a main spindle and the suspension frame. The column is movably arranged on the base. The spindle head is movably connected to the column. The main spindle is arranged at the bottom of the spindle head. The suspension frame is detachably connected to the base and adjacent to the spindle. The suspension frame includes: two fixed plates, spaced apart each other, fixed on the base and located below the main spindle; and two horizontal stands, arranged on the two fixed plates, the two horizontal stands are spaced apart from each other and are roughly perpendicular to the two fixed plates, and the worktable is arranged on the two horizontal stands; wherein the two fixed plates, the two horizontal stands and the worktable have a low expansion coefficient structure.

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