Lead screw pre-stretching mechanism capable of achieving thermal compensation and used for numerical control machine tool

Abstract

The invention relates to the technical field of lead screw pre-stretching of numerical control machine tools, in particular to a lead screw pre-stretching mechanism capable of achieving thermal compensation and used for a numerical control machine tool. The lead screw pre-stretching mechanism comprises numerical control machine tool equipment, a plurality of mounting grooves are formed in the numerical control machine tool equipment, and lower mounting frames are detachably connected to the two ends in the mounting grooves; a driving mechanism is mounted in the mounting groove, and a lead screw assembly is arranged on the driving mechanism; and the upper end of the lower mounting frame is detachably connected with an upper mounting frame. The stability of the lead screw assembly during rotation can be fully guaranteed, meanwhile, it can be guaranteed that the temperature of one end of the lead screw assembly is constant so that pressure can be fully borne, the lead screw assembly can be fully stretched, the area, generated due to heat, of the lead screw assembly is straightened, the arching situation is avoided, the operation stability is fully guaranteed, and the service life of the lead screw assembly is prolonged. And the temperature change of the lead screw assembly can be actually monitored.

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