Heavy type static pressure turntable with multiple types of oil pads for combined supporting

Abstract

A heavy type static pressure turntable with multiple types of oil pads for combined supporting comprises a turntable board, the conical fan-shaped oil pad, a turntable pedestal and the round oil pad, wherein the conical fan-shaped oil pad and the round oil pad are arranged on the turntable pedestal; the turntable board is supported by the conical fan-shaped oil pad and the round oil pad jointly and comprises a conical inclined-surface upper guide rail, a round planar upper guide rail, a workpiece clamping groove and a turntable gear ring; and the turntable pedestal comprises a conical inclined-surface lower guide rail, a round planar lower guide rail, a radial bearing and a round oil pad positioning hole. Due to the design of combined supporting with the multiple oil pads, the dynamic characteristic and stability of the turntable are improved, the maximum rotation speed is improved, and the turntable has high healthy operation service performance. The bearing capacity, dynamic characteristic and stability of the turntable are improved, so that the machining accuracy of the turntable is improved, and the static pressure turntable has high healthy service performance.

Description

technical field [0001] The invention relates to the research field of hydrostatic pressure support of heavy-duty numerical control machine tools, in particular to a heavy-duty static pressure turntable supported by multi-type oil pad composite support. Background technique [0002] Heavy-duty machine tools are widely used in key national defense fields such as energy, transportation, heavy machinery, aerospace, and shipbuilding, and are representative products of my country's equipment manufacturing industry. The heavy-duty static pressure turntable is the key functional part of the heavy-duty high-end CNC machine tool. Its function is to support the workpiece and provide high-precision and high-speed rotary motion. Its load-bearing performance, dynamic performance and stability have a great influence on the processing capacity and processing accuracy of the heavy-duty machine tool. important influence. [0003] Therefore, heavy load is one of the main performance character...

AI Technical Summary

Problems solved by technology

However, as the load-bearing of the turntable increases and the speed increases, the quality and volume of the processed parts become larger and larger, and the structure becomes more and more complex. The vibration of the turntable caused by table deformation, bias load and other factors will also increase. , the machining accuracy of the turntable will also decrease, and the probability of damage to the oil pad and oil film during the operation of the turntable will also increase

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