Precision measuring apparatus with guides in pneumostatic bearings专利检索-运动探测器传感器与探测器专利检索查询-专利查询网

Precision measuring apparatus with guides in pneumostatic bearings

阅读：453发布：2023-07-06

专利汇可以提供Precision measuring apparatus with guides in pneumostatic bearings专利检索，专利查询，专利分析的服务。并且A measuring apparatus comprises a portal formed by uprights spanned by a cross-piece and slidable on guides of a base by means of pneumostatically supported bearings, a slide carrying a feeler and slidable on guides of the cross-piece by means of pneumostatically supported bearings, at least one pressure regulator arranged to regulate the pressure of the air passing through it to one or more bearings and co-operating with a cam to produce a relative movement of the regulator with respect to the cam during the shifting of the slide or the uprights with respect to the cross-piece or the base. The feeler is carried by an arm slidable in the slide, substantially in the form of an isosceles trapezoid, pneumostatically supported bearings being arranged between the slide and the larger face and between the slide and the inclined faces of the arm.，下面是Precision measuring apparatus with guides in pneumostatic bearings专利的具体信息内容。

权利要求

1. A measuring station comprising a base, a portal having a pair of uprights and a cross-piece, first guide means on said base including first pneumostatically supported bearings for slidably mounting said uprights, a slide carrying a feeler, and second guide means on said cross-piece including second pneumostatically supported bearings for slidably mounting said slide, wherein the improvement comprises control means including at least a pressure regulator for varying the pressure of the air fed to one of said bearings, and a cam co-operating with said pressure regulator during the movement of the slide with respect to the cross-piece, the pressure regulator being fixed to the slide or to the crosspiece and the cam to the cross-piece or to the slide, respectively, so as to produce a relative movement of the regulator with respect to the cam during the shifting of the slide with respect to the cross-piece, to correct variations in the set of said slide with respect to said base.

2. Measuring station according to claim 1, wherein the said pressure regulator is prearranged for varying the pressure of the air fed to the bearings of each upright proportionally to the variations in load produced on each of said first bearings to correct the variations in the set of the portal with respect to the base.

3. Measuring station according to claim 1, wherein said pressure regulator is prearranged to vary the pressure of the air fed to said second bearings proportionally to the movements of the points of the guides of the cross-piece on which the said bearings rest to correct the variations in the set of the slide with respect to the crosS-piece which are produced by elastic deformations of the cross-piece itself.

4. Measuring station according to claim 1, wherein said control means includes two pressure regulators each of which is associated with one of said uprights, and two cams operatively associated with said regulators to control each one of the pressure of the air of the bearings of the associated upright.

5. Measuring station according to claim 4, wherein each upright comprises two bearings disposed symmetrically with respect to the mid line of the upright itself.

6. Measuring station according to claim 5, wherein said guide means for each upright includes an upper surface and a pair of parallel lateral surfaces, comprising an upright bearing of at least one upright, and a pair of bearings associated on said resting on the lateral surfaces of the said pair of parallel lateral surfaces.

7. Measuring station according to claim 1, wherein said slide is provided with two sets of bearings spaced apart in the direction of the axis of said cross-piece, said control means comprising another pressure regulator each associated with another cam, said pressure regulators controlling the pressure of the air of the bearings of one of the aforesaid two sets.

8. Measuring station according to claim 7, wherein each of the said sets of bearings comprises two bearings each of which is slidable on a corresponding guide, these guides being on opposite sides with respect to the cross-piece and being contained in the same plane.

9. Measuring station according to claim 8, wherein said two bearings of each set are associated with another two bearings, each one sliding on a corresponding guide which is contained in a plane inclined with respect to that containing the aforesaid guides of the cross-piece.

10. Measuring station according to claim 9, characterised by the fact that the said inclined planes form a dihedral angle substantially of 90* .

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Precision measuring apparatus with guides in pneumostatic bearings

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