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Adjustable elastic clamping device for ultraprecise spindle dynamic pressure flotation polishing

A dynamic pressure floating polishing and clamping device technology, which is applied to surface polishing machine tools, grinding/polishing equipment, grinding workpiece supports, etc., to achieve the effects of ensuring polishing quality, reducing precision requirements, and improving smoothness

Active Publication Date: 2014-02-19
SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a clamping operation with the surface of the workpiece shaft, and a certain force will still be generated

Method used

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  • Adjustable elastic clamping device for ultraprecise spindle dynamic pressure flotation polishing
  • Adjustable elastic clamping device for ultraprecise spindle dynamic pressure flotation polishing

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Embodiment Construction

[0014] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0015] refer to figure 1 , figure 2 As shown, an adjustable ultra-precision spindle dynamic pressure floating polishing elastic clamping device includes a connecting flange 1 and a base 7, and a wedge-shaped sleeve 8 is arranged on the inside of the base 7, and the inside of the wedge-shaped sleeve 8 A spring sleeve 10 is set, the base 7, the wedge sleeve 8 and the spring sleeve 10 are in sliding contact, the connecting flange 1 fixes the workpiece 13 by the first screw 2, and the spring sleeve 10 passes through The third screw 14 is connected with the grinder 12, the wedge-shaped sleeve 8 is threadedly connected with the rotating sleeve 5, the bottom end of the wedge-shaped sleeve 8 is provided with a spring 9, and the upper and lower rows of the rotating sleeve 5 are provided with stoppers. The steel ball 6 is pushed, and the ba...

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PUM

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Abstract

The invention discloses an adjustable elastic clamping device for ultraprecise spindle dynamic pressure flotation polishing. The clamping device comprises connecting flanges and a base. A wedged sleeve is arranged inside the base, a spring sleeve is arranged inside the wedged sleeve, and the base, the wedged sleeve and the spring sleeve make contact with one another in a sliding mode; a workpiece is fixed by the connecting flanges through first screws, the spring sleeve is connected with a grinding tool through third screws, and the wedged sleeve is connected with a rotating sleeve through threads; a spring is arranged at the bottom end of the wedged sleeve, thrust steel balls are arranged on the rotating sleeve in an upper row and a lower row, and the base is connected with a thrust baffle in a grease lubricating mode through second screws. The clamping device can automatically complete clamping and loosening actions and adjust the polishing solution gap; in the ultraprecise spindle polishing process, the clamping device has the self-locking function and has a certain adjustment range, and shaft machining requirements of workpieces in a certain range of size can be met. With the clamping device, a mechanism can be synchronously adjusted in the radial directions, and thus the eccentric state can be avoided.

Description

technical field [0001] The invention relates to an ultra-precision machining technology, in particular to an adjustable ultra-precision spindle dynamic pressure float-off polishing elastic clamping device. Background technique [0002] In the field of ultra-precision machining technology, dynamic pressure float-off polishing (a review of the status quo of ultra-precision machining, Chinese Journal of Mechanical Engineering, Volume 43, No. 1, January 2007) is based on the principle of dynamic pressure bearings, through the wedge between the polishing grinding tool and the workpiece, The hydraulic pressure generated during the polishing rotation makes the workpiece float on the surface of the polishing grinding tool, and the workpiece is polished through the polishing material particles in the floating gap. Because there is no frictional heat and abrasive wear, the standard surface does not change, so precise workpiece surfaces can be obtained repeatedly. At present, it is mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B41/06
CPCB24B29/08
Inventor 蔡黎明刘斌
Owner SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI