Guide device of machine tool spindle box balance weight heavy punch

Abstract

The invention relates to a guide device of a machine tool spindle box balance weight heavy punch, in particular to the technical field of heavy numerical control foundation tools for metal cutting. The guide device comprises a stand column, and the balance weight heavy punch is arranged in the stand column; a guide rail is arranged between the balance weight heavy punch and the stand column, and a guide assembly is arranged between the balance weight heavy punch and the guide rail; the guide assembly comprises guide sleeves, and guide shafts are arranged at one ends inside the guide sleeves; the guide shafts are sleeved with elastic elements, and bosses are arranged at the outer ends of the guide shafts; transverse shafts are arranged at the other ends of the guide sleeves, and transverse bearings matched with the guide rail are arranged on the transverse shafts; and on the two sides of the guide rail, the guide sleeves are connected with side shafts located on the two sides of the guide rail respectively through supports, side bearings are arranged on the side shafts, and the side bearings are matched with the side faces of the guide rail. The guide device is stable in running, and the precision requirement for the guide rail is reduced.

Description

technical field [0001] The invention relates to a guide device for a counterweight weight of a spindle box of a machine tool, in particular to the technical field of a heavy-duty numerical control basic tool for metal cutting. Background technique [0002] CNC heavy-duty column mobile milling and boring machine in the process of processing, such as image 3 As shown, the spindle box of the machine tool moves vertically up and down on the guide rail 1 of the column 7 . In order to keep the headstock balanced and stable, a counterweight weight 6 is often installed at the lower part of the headstock for balance. The counterweight weight 6 is suspended from the headstock through a steel cable. Bending deformation occurs due to bending moment. But the counterweight weight 6 is suspended in the column 7 by the steel cable, and moves up and down following the spindle box in the column 7. The existing guiding device mainly adopts the guide block 13 and the guide rail 1, and the gui...

AI Technical Summary

Problems solved by technology

Because the counterweight hammer 6 is not stable, it is prone to deflection and impact. When the spindle box is large and the counterweight hammer 6 is heavy, due to the large gap between the guide block 13 and the rail, especially at the moment of starting the motor, The counterweight hammer 6 is prone to deflection and causes impact, which reduces the machining accuracy of the machine tool

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