Minitype bearing five-point positioning ultra-precision bearing positioning mechanism

A technology of miniature bearings and positioning mechanisms, applied in grinding machines, metal processing equipment, grinding/polishing equipment, etc., can solve problems such as inaccurate positioning and unstable ultra-precision depth

Inactive Publication Date: 2010-01-13
南通山口精工机电有限公司
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned problems, provide a five-point positioning ultra-precision support positioning mechan

Method used

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  • Minitype bearing five-point positioning ultra-precision bearing positioning mechanism
  • Minitype bearing five-point positioning ultra-precision bearing positioning mechanism

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Embodiment Construction

[0009] Miniature bearing five-point positioning ultra-precision support positioning mechanism, the workpiece is clamped by the upper and lower pressure rollers 1 and 2 to achieve up and down stability, and the rotation of the workpiece is realized by the motor driving the upper and lower pressure rollers. When installing, first Install the pressure roller, since the front and rear positions are fixed, you only need to determine the up and down positions, the up and down positions are just tangent to the outer circle of the workpiece, and the left and right are in the middle of the workpiece, but make sure to tilt to the right about 5-10 degrees, and then Install the pressure roller, because the upper and lower positions of the upper pressure roller are fixed, so it is only necessary to determine the front and rear positions of the upper pressure roller, that is, the center line of the upper pressure roller is tangent to the outer circle of the workpiece, but the direction of the...

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Abstract

In order to solve the problems, the invention provides a minitype bearing five-point positioning ultra-precision bearing positioning mechanism which has a reasonable structure and convenient regulation and solves the problems of inaccurate original positioning and unstable ultra-precision depth. The mechanism consists of an upper pressure wheel, a lower pressure wheel, an end face bearing, a rear bearing and an ultra-precision oilstone; the upper pressure wheel and the lower pressure wheel are fixed in the outside diameter of a bearing ferrule respectively; the upper pressure wheel tilts outwards for 10 to 15 degrees; the lower pressure wheel tilts towards the opposite direction for 5 to 10 degrees; the centerline of the upper pressure wheel is tangential with the outer circle of the bearing ferrule; the rear bearing is fixed on the right side of the outer circle of the bearing ferrule; the plane of a rear baffle is contacted with the end face of a workpiece; the ultra-precision oilstone is fixed inside the workpiece and tangential with the inner circle; through the design, the curvature precision of the inner circle and the outer circle can be ensured and can be controlled within 2si; and the ultra-precision depth is also controlled and can be controlled within 4 mu m, thereby ensuring the sleeving rate of the bearing.

Description

technical field [0001] The invention relates to a positioning mechanism, in particular to a five-point positioning super-precision support positioning mechanism for miniature bearings. Background technique [0002] As the size of the bearing becomes smaller, the requirements for low noise and long life of the bearing are getting higher and higher, and the control and requirements for the ultra-precision process are becoming more and more strict. The inner and outer rings of the existing small bearings (such as 520 bearings) are too small to be able to Using the method of centerless support and end surface pressing roller, only the inner and outer ring grooves can be used for ultra-finishing. The three-point positioning of the rolling rod and the oil stone is used to locate the outer circle and the groove, while the end faces of the inner and outer rings of the bearing have no positioning, and the oil stone passes through the swing rod left and right. Swing makes the ferrule ...

Claims

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Application Information

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IPC IPC(8): B24B19/06
Inventor 莫峰
Owner 南通山口精工机电有限公司
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