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Hydrostatic profile rail guide

A guide device, static pressure technology, applied in the direction of linear motion bearings, shafts and bearings, bearings, etc.

Inactive Publication Date: 2008-08-27
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of restrictor requires very intensive processing of the guide slide

Method used

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  • Hydrostatic profile rail guide
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Embodiment Construction

[0015] The profiled rail guide according to the invention shown in FIGS. 1 to 4 comprises a guide carriage 1 mounted on a guide rail 2 in a hydrostatic manner. The guide rail 2 has a head facing the guide carriage 1 and a bottom facing a machine part (not shown here) on which the guide rail 2 is fastened. The guide rail 2 is provided at its head with an intermediate surface 3 along the longitudinal axis of the profiled rail guide. The guide rail 2 is provided with a plurality of through-holes 4 arranged along the guide rail, through which fixing screws, not shown here, for fixing the guide rail to the above-mentioned machine parts pass. These through holes 4 pass through the center surface 3 of the guide rail 2 .

[0016] On its head, the guide rail 1 is equipped with two upper bearing surfaces 5 and two lower bearing surfaces 6 . The upper support surfaces 5 are designed flat, they are arranged obliquely with respect to the intermediate surface 3 , one upper support surface...

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PUM

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Abstract

The invention relates to a hydrostatic profile rail guide with a guide carriage (2) hydrostatically mounted on the guide rail (1), provided on the guide rail (1) facing side thereof with several pressure pockets (9) for pressurisation with hydraulic fluid, throttles (11) being provided for adjustment of a volumetric flow into the pressure pockets (9) for adjustment of the pressure in the pressure pockets (9). A throttle (11) is provided as an in-built element on the guide carriage (1) for each pressure pocket (9).

Description

technical field [0001] The invention relates to a hydrostatic profile rail guide device, in which a guide slide is installed on a guide rail in a hydrostatic manner. Background technique [0002] For example, US 2004 / 0042689 A1 discloses a hydrostatic profiled rail guide, wherein the guide carriage is equipped with a plurality of pressure chambers (Drucktaschen) for hydraulic fluid on its side facing the guide rail . Lubricant is continuously pressed into the pressure oil chamber by means of an external pressure supply via inlet channels, so that the bearing surfaces of carriage and guide rail are always separated from each other by a thin lubricating film. As a result, only fluid friction occurs that is proportional to the velocity of the relative movement of the aforementioned bearing surfaces. In the extreme case, hydrostatic bearings run without friction and do not have stick-slip effects (Stick-Slip-Effekt). These hydrostatic profile guides allow high-precision posit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C29/02F16C32/06
CPCF16C32/0622F16C29/025
Inventor D·鲁迪W·鲍尔
Owner SCHAEFFLER TECH AG & CO KG