大口径SiC非球面范成精密磨削方法及其工艺

doi:10.3969/j.issn.1000-1093.2016.12.021

兵工学报 ›› 2016, Vol. 37 ›› Issue (12): 2340-2346.doi: 10.3969/j.issn.1000-1093.2016.12.021

大口径SiC非球面范成精密磨削方法及其工艺

胡德金

（上海交通大学机械与动力工程学院，上海 200240）

收稿日期:2016-03-15 修回日期:2016-03-15 上线日期:2017-02-20
作者简介:胡德金（1947—），男，教授，博士生导师
基金资助:
机械系统与振动国家重点实验室基金项目(MSVZD201515)

Precision Generated Grinding Method and Its Technology of Large Diameter SiC Aspheric Surface

HU De-jin

(School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

Received:2016-03-15 Revised:2016-03-15 Online:2017-02-20

摘要/Abstract

摘要：

为了提高大口径轴对称SiC非球面磨削的精度和效率，提出了一种基于法线跟踪的非球面范成摆动精密磨削方法，设计了运动控制模型，在磨削过程中，使砂轮主轴旋转中心线与非球面母线上磨削点法线始终保持重合。在此基础上，进一步设计了可以对非球面母线上磨削点进行实时检测的装置，建立了实现砂轮磨损自动补偿的数学模型和相关磨削工艺。研究结果表明：该方法可以避免磨削运动轨迹原理误差，运动机构简单，运动精度得到保证；应用砂轮端面进行磨削，提高了磨削比和磨削效率。

关键词: 机械制造工艺与设备, 大型SiC非球面, 范成磨削, 法向跟踪, 实时检测

Abstract:

In order to improve the grinding accuracy and efficiency of large diameter aspheric surface, a generated grinding method for aspheric surface based on the normal track is proposed, and a motion control model is designed. In grinding process, the rotation centerline of grinding wheel spindle always coincides with normal line of grinding point on aspheric surface. A detecting device is designed for tracking shaping precision in real-time, and a mathematical model and a related grinding process for automatic compensation of grinding wheel wear are established. Results show that the proposed method can be used to avoid the principle error of grinding motion trajectory, make the motion mechanism simple, and ensure the motion accuracy; grinding ratio and grinding efficiency are increased by using the end face of the grinding wheel for aspheric surface grinding.

Key words: manufacturing technology and equipment, large diameter SiC aspheric surface, generated grinding, normal tracking, real-time detection

中图分类号:

TG580.61⁺2

胡德金. 大口径SiC非球面范成精密磨削方法及其工艺[J]. 兵工学报, 2016, 37(12): 2340-2346.

HU De-jin. Precision Generated Grinding Method and Its Technology of Large Diameter SiC Aspheric Surface[J]. Acta Armamentarii, 2016, 37(12): 2340-2346.

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大口径SiC非球面范成精密磨削方法及其工艺

Precision Generated Grinding Method and Its Technology of Large Diameter SiC Aspheric Surface

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