Rolling and sliding composite guide rail heavy-duty CNC rotary table and its driving mechanism

Abstract

The invention provides a heavy type numerically controlled rotary table with rolling and sliding compound guide rails and a driving mechanism thereof, aiming at solving the problems that a static pressure rotary table is troublesome to adjust and environmental pollution can be easily caused due to the recovery and leakage of static pressure oil. The rotary table has the key points that: a big gear ring is fixed on the table and then the big gear ring, and the table all together fall onto a sliding seat to form a sliding guide rail pair of the rolling and sliding compound guide rails with the bottom surface of the big gear ring; a plurality of unloading rolling elements are arranged at the periphery of a rotating guide rail on the upper surface of the sliding seat; and the unloading rolling elements and the table form a rolling guide rail pair of the rolling and sliding compound guide rails; besides, a driving mechanism with higher transmission ratio is arranged. The heavy type numerically controlled rotary table with the rolling and sliding compound guide rails provided by the invention can be used for being arranged on large- and medium-sized numerically controlled machine tools,thus processing the components of large-sized and heavy type equipment.

Description

technical field [0001] The invention relates to a rolling and sliding composite guide rail heavy-duty numerical control rotary workbench in a machine tool and a driving mechanism thereof. Background technique [0002] In recent years, with the rapid development of industries such as coal mining machinery, petroleum pump valves, and construction machinery, the processing equipment required by these industrial fields has become increasingly large and heavy, but the requirements for precision have not decreased. Not only that, with the emphasis on climate change and environmental protection in my country in recent years, the use of clean energy has become more and more extensive, and the number of manufacturers of wind turbines using wind energy has sprung up, and many key parts of wind turbines They are all heavy and large parts, and the precision required for each processing surface is not low. The above industries such as coal mining machinery, petroleum pump valves, constru...

AI Technical Summary

Problems solved by technology

However, the static pressure rotary table has the following problems: it is more troublesome to adjust; the contact stiffness is also inferior to the sliding friction; the recovery and leakage of the hydrostatic oil may easily cause environmental pollution; in addition, the hydrostatic technology has requirements for the use environment It is also higher, because natural conditions such as temperature and humidity will affect the viscosity of hydraulic oil, which will have a certain impact on the establishment of hydrostatic oil film

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