Hydrostatic sliding guide device and machine tool equipped with hydrostatic sliding guide device

A guiding device and static pressure technology, which is applied to the parts of grinding machine tools, linear motion bearings, manufacturing tools, etc., can solve the problems of inability to manage support stiffness, inability to implement guide surface and sliding surface management, etc.

Active Publication Date: 2021-10-19
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, it is also impossible to manage the support stiffness which has a high correlation with the gap to an optimal value

Method used

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  • Hydrostatic sliding guide device and machine tool equipped with hydrostatic sliding guide device
  • Hydrostatic sliding guide device and machine tool equipped with hydrostatic sliding guide device
  • Hydrostatic sliding guide device and machine tool equipped with hydrostatic sliding guide device

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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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Abstract

The present invention provides a static pressure slide guide device and a machine tool provided with the static pressure slide guide device. The static pressure sliding guide device (40) comprises: a fixed body (19) having a first longitudinal guiding surface (16a) and a second longitudinal guiding surface (17a); a movable body (14) having a first longitudinal sliding surface (14a1) and the second longitudinal sliding surface (14a2); fluid supply device (33); pressure regulating device (38); static pressure bearing part (34), supplied with fluid by the fluid supply device, by being acted on the first longitudinal guide surface and the second A fluid pressure (P1) corresponding to the size of the first gap (L1) between the longitudinal sliding surfaces forms a support stiffness (G) corresponding to the size of the first gap with respect to the movable body; and the force generating part ( 35) The movable body is urged toward the first longitudinal guide surface by being supplied with the fluid whose pressure is regulated to a predetermined fluid pressure (P2a) by the pressure regulating device. The pressure regulating device regulates the pressure of the prescribed fluid so that the size of the first gap reaches the 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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Patent Type & Authority Patents(China)
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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