Guide device for counterweight hammer of machine tool spindle box

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 guiding device for a counterweight of a machine tool headstock, in particular to the technical field of a heavy-duty numerical control basic tool for metal cutting. Background technique [0002] In the machining process of the CNC heavy-duty column mobile milling and boring machine, such as image 3 As shown, the headstock of the machine tool moves vertically up and down on the guide rail 1 of the column 7. In order to maintain the balance and stability of the headstock, a counterweight 6 is often installed at the lower part of the headstock for balance. The counterweight 6 is suspended from the headstock by a steel cable. The column 7 is only subjected to pressure, so that the column 7 is no longer unilaterally affected. Bending deformation occurs under the action of bending moment. However, the counterweight 6 is suspended in the column 7 by steel cables, and moves up and down with the headstock in the column 7. The existing 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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