A numerically controlled machine tool spindle head with a stable structure

Abstract

The utility model relates to a numerically -controlled machine tool spindle head with stable structure, include: stand, install the cutter mounting seat on it through the cooperation of sliding block and guide rail, screw drive mechanism, drive screw rotation through positive and negative motor and drive cutter mounting seat moves up and down, and pass through positive and negative motor shutdown fixed cutter mounting seat, auxiliary support mechanism contains the outer tube spare fixed on the stand, and the inner rod is installed in the outer tube spare and moves up and down, the top of inner rod and cutter mounting seat form up and down and abutment setting, cutter mounting seat moves to the in -place or up -shift process, through the air pump and pass in the outer tube spare with the high pressure gas of proper amount to push the inner rod up -shift, and then assist the support cutter mounting seat, embrace and hold the mechanism, install on the base and pass to the outer tube spare, and be used for embracing and holding fixed inner rod after inner rod moves to the in -place. The utility model can realize the installation stability of cutter mounting seat and will not appear the problem of interference jamming without increasing multiple groups of screw rod and motor drive.

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