Hydrostatic sliding guide device and machine tool provided with same

A guiding device and static pressure technology, applied in the direction of linear motion bearings, grinding machine parts, mechanical equipment, etc., can solve the problems of unable to manage the support stiffness, unable to implement the management of the guide surface and sliding surface, etc.

Active Publication Date: 2018-12-07
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, it is impossible to manage the gap between the guide surface and the sliding surface
Therefore

Method used

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  • Hydrostatic sliding guide device and machine tool provided with same
  • Hydrostatic sliding guide device and machine tool provided with same
  • Hydrostatic sliding guide device and machine tool provided with same

Examples

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Embodiment Construction

[0028] Hereinafter, embodiments of the present invention will be described with reference to the drawings. figure 1 A hydrostatic slide guide 40 using the present invention is shown (see figure 2 ) embodiment of the grinder 1 . The grinder 1 is a grinder head traverse type grinder. figure 1 Showing an example of a top view of a grinding machine 1, figure 2 show figure 1 The II-II sectional view in. In addition, in all the drawings in which the X axis, the Y axis, and the Z axis are described, the X axis, the Y axis, and the Z axis are perpendicular to each other. The Y axis represents the vertical direction, and the Z and X axes represent the horizontal direction. The Z-axis indicates the direction of the workpiece rotation axis, and the X-axis direction indicates the direction in which the grinding wheel 15 cuts into the workpiece W. As shown in FIG.

[0029] Such as figure 1 As shown, the grinding machine 1 has: a base 11, which is fixed on the ground; and a spindle...

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PUM

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Abstract

The invention provides a static pressure sliding guide device and a machine tool provided with the static pressure sliding guide device. The hydrostatic sliding guide device (40) is provided with: a fixed body (19) having a first longitudinal guide surface (16a) and a second longitudinal guide surface (17a); a movable body (14) having a first longitudinal sliding surface (14a1) and a second longitudinal sliding surface(14a2); a fluid supply device (33); a pressure regulating device (38); a static pressure supporting part (34) which is supplied by the fluid supply device, and forms support stiffness (G) corresponding to the size of the first gap with respect to the movable body by the fluid pressure (P1) corresponding to the size of the first gap (L1) acting between the first longitudinal guide surface and the first longitudinal sliding surface; and a force generating unit (35) which applies a fluid that is regulated by the pressure regulating device to a predetermined fluid pressure (P2a) to apply force to the movable body in the direction of the first longitudinal guide surface. The pressure regulating device is used for regulating the pressure of the specified fluid, so that thesize of the first gap reaches a set value.

Description

technical field [0001] The present invention relates to a static pressure slide guide device and a machine tool provided with the static pressure slide guide device. Background technique [0002] Conventionally, for example, there is a hydrostatic sliding guide device that maintains two parts composed of a movable body and a fixed body in a non-contact state, reduces friction when the two parts move relative to each other, and increases the support rigidity of the movable body to the fixed body, Achieve stable relative movement. For example, see JP-A-2013-221572, JP-A-57-57884, JP-A-2014-108503, and JP-A-2006-231483. Specifically, one of the opposing surfaces of the two components that move relatively, for example, each sliding surface in each pair of horizontal and vertical sliding surfaces of the movable body is provided with a concave pocket (Pocket). ). [0003] Moreover, fluids such as air and oil of a predetermined pressure are supplied to the pockets, between the h...

Claims

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Application Information

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IPC IPC(8): B24B41/02B24B41/00
CPCB24B41/00B24B41/02B23Q1/38F16C29/025
Inventor 大津雄太堀伸充野野山真
Owner JTEKT CORP
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