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A Self-Adaptive Modification Blade Abrasive Belt Polishing Machine Tool

A self-adaptive, abrasive belt technology, applied in abrasive belt grinders, parts of grinding machine tools, grinders, etc., can solve problems such as errors, and achieve the effect of improving the surface accuracy, the processing quality is not stable, and the surface quality is improved

Active Publication Date: 2017-01-04
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method puts forward higher requirements on the resolution and response speed of the force sensor and the control accuracy of the cylinder pressure control loop, and the characteristics of the feedback pressure control determine that the adjustment of the contact pressure inevitably has a certain hysteresis. which may introduce some error

Method used

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  • A Self-Adaptive Modification Blade Abrasive Belt Polishing Machine Tool
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  • A Self-Adaptive Modification Blade Abrasive Belt Polishing Machine Tool

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Embodiment Construction

[0026] The structural principle and working principle of the present invention will be described in further detail below in conjunction with the accompanying drawings, but the actual structure of the present invention is not limited to the following embodiments.

[0027] see Figure 1~3 , a self-adaptive blade abrasive belt polishing machine tool of the present invention, comprising a bed 1, a column 13, an X-axis carriage 4, a Z-axis carriage 6, a C-axis turntable 7, a top seat 16, and a Y-axis slider 15 , Pressure shaft slide plate 14, pressure shaft guide rail 20 and abrasive belt grinding head part 10.

[0028]Among them, the X-axis carriage 4 is guided by the X-axis guide rail 2 installed on the bed 1, and driven by the X-axis screw transmission part 3 installed in the bed 1, and can move horizontally along the front and rear directions. The upper end of the plate 4 is installed with the Z-axis guide rail 5 along the direction perpendicular to the X-axis, and the Z-axis ...

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Abstract

The invention discloses a self-adaption profile modification blade abrasive belt polishing machine tool, comprising a machine tool body, an X-axis carriage, an X-axis carriage, a C-axis rotary table, a Y-axis sliding block, an abrasive belt polishing head component, an air cylinder, and the like, wherein a pressure compensation element is in series connection between the abrasive belt polishing head component and the air cylinder to cooperate with the air cylinder to form a polishing contact pressure. During machining, the polishing machine tool performs interpolation feed according to an ideal polishing track; due to the existence of a blade profile error (or waveness), the polishing contact point deviates from the ideal polishing track in a pressure shaft direction, and the acting pressure of the pressure compensation element changes along with the deviation, so as to realize the polishing contact pressure compensation; the pressure compensation element can utilize a constant-pressure type gas bearing with oppositely arranged air cushions, and realizes the polishing contact pressure compensation effect by utilizing a pressure balance function to the oppositely arranged air cushions. The self-adaption profile modification blade abrasive belt polishing machine tool has the advantages that the response speed of pressure compensation is increased, the self-adaption modification on the profile error (or waveness) during blade polishing machining is realized, and the profile precision is improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and relates to a numerically controlled abrasive belt polishing machine tool for blade finishing, in particular to an adaptive blade abrasive belt polishing machine tool. Background technique [0002] Blades are key components of aerospace engines, steam turbines, turbines, aircraft engines and other equipment, and have the characteristics of complex shapes, high geometric accuracy and surface quality requirements. When machining blades, precision casting, precision forging or CNC milling are usually used for rough machining or semi-finishing. At the same time, due to the high precision requirements of the blades, subsequent polishing and grinding processes are required to improve surface accuracy and remove residues from the previous process. Knife marks, reduce surface roughness, improve surface quality. The traditional polishing process mostly adopts the method of manual polishi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B21/16B24B41/04B24B47/08B24B41/00
CPCB24B21/165B24B21/18B24B41/007
Inventor 薛飞宋冬冬
Owner XI AN JIAOTONG UNIV
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