Hemisphere centering plane supporting turntable structure of large-caliber ultra-precise measuring machine
An ultra-precise measurement and large-diameter technology, which is applied in the direction of measuring devices, supporting machines, machine tables/supports, etc., can solve problems such as limited carrying capacity, inapplicability, and part size restrictions, achieving high carrying capacity, reducing processing difficulty, The effect of reducing friction
Inactive Publication Date: 2014-02-05
XI AN JIAOTONG UNIV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, the small-diameter turntable structure generally adopts a hemispherical centering turntable structure. On the one hand, the measurable part size of this structure is limited; In the large-diameter ultra-precision measuring machine turntable
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0025] The present invention is described in further detail below in conjunction with accompanying drawing:
[0026] see figure 1 As shown, the hemispherical centering planar support turntable structure of the large-diameter ultra-precision measuring machine of the present invention includes a turntable base 1, a planar support graphite block 2, a static pressure plate 3 under the turntable, a hemispherical seat 4, a hemispherical graphite tile 5, Central axis 6 and hemispherical axis 7.
[0027] The hemispherical centering structure is composed of a hemispherical seat 4, a hemispherical shaft 7, a central shaft 6 and a hemispherical graphite tile 5. The center of the turntable base 1 is provided with a trapezoidal mounting hole, the hemispherical seat 4 is fixed in the trapezoidal mounting hole of the turntable base 1 by screws, and the hemispherical graphite tile 5 is bonded to the hemispherical seat 4 by epoxy resin. A through hole is arranged in the center of the hemisph...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a hemisphere centering plane supporting turntable structure of a large-caliber ultra-precise measuring machine, which comprises a turntable base, plane supporting graphite blocks, a turntable lower static pressure disk, a hemisphere seat, a hemispheric graphite tile, a central shaft and a hemisphere shaft. An installation hole is arranged at the center of the turntable base, and the hemisphere seat is fixed in the installation hole. The hemispheric graphite tile is fixed on the hemisphere seat. The central shaft is arranged at the center of the hemisphere shaft, and the central shaft and the hemisphere shaft are both fixed on the turntable lower static pressure disk. A convex spherical surface of the hemisphere shaft is matched with a concave spherical surface of the hemispheric graphite tile. An annular groove is arranged on the bottom surface of the turntable lower static pressure disk, and the plane supporting graphite blocks are evenly fixed in the annular groove. The plane supporting graphite blocks and the turntable base form a gas static pressure bearing pair. The hemisphere centering plane supporting turntable structure adopts the small-size hemisphere shaft to conduct rotation centering on a large-size turntable, and high rotation accuracy is achieved. In addition, plane gas static pressure bearings are adopted for supporting so that friction among parts is reduced, and the hemisphere centering plane supporting turntable structure has the advantages of high accuracy, rigidity and carrying capacity.
Description
【Technical field】 [0001] The invention belongs to the technical field of precision measurement, in particular to a supporting turntable structure of a measuring machine. 【Background technique】 [0002] The turntable of the ultra-precision measuring machine is its key component, and the rotation accuracy and end runout of the turntable directly affect the accuracy of the measuring machine. For the ultra-precision measuring machine turntable of large-diameter parts (the diameter of the part is less than Φ900mm), the requirements for the carrying capacity of the turntable are increased, and high precision must be ensured under the condition of ensuring the carrying capacity. At present, the small-diameter turntable structure generally adopts a hemispherical centering turntable structure. On the one hand, the measurable part size of this structure is limited; In the large-diameter ultra-precision measuring machine turntable. 【Content of invention】 [0003] The object of the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F16M11/22F16M11/06F16M11/18G01B21/00
Inventor 赵惠英陈健龙张楚鹏赵则祥杨和清陈伟席建普娄云鸽李彬任东旭李志强刘孟奇
Owner XI AN JIAOTONG UNIV