摘 要:随着航空、航天、船舶、汽车和模具工业的飞速发展,复杂曲面的数字#br# 化测量与误差评定技术对曲面加工精度起着越来越重要的作用。利用激光跟踪测量设备对大#br# 型定子叶片铸件进行了数字化测量,对测量点云进行了去噪、精简等数据处理,并将测量点#br# 云与理论模型进行了基准匹配,计算出了定子叶片铸件各部位的误差分布,实现了对大型定#br# 子叶片铸件的误差评定;测量及误差分析结果可以用于优化叶片在后续加工中的装夹姿态,#br# 使叶片各部位的加工余量趋于均匀,有效提高产品制造精度和加工效率。#br# 关 键 词:数字化测量;误差评定;基准匹配;点云
Abstract: With the rapid development of aviation, aerospace, vessel, automobiles and mold#br# industry, the complex surface digital measurement and the technology of tolerance evaluation#br# plays an increasingly important role in the accuracy of surface machining. Large stator blade#br# casting is carried on digital measuring with a laser tracking measurement device, and the#br# measuring points cloud is denoised and reduced. The measurement points cloud and the theory#br# model are matched. The tolerance evaluation and errors of large stator blade castings are#br# calculated. Results of measurement and the error analysis can be used in the optimization of the#br# clamping position for the large stator blade casting in the subsequent processing, making the#br# machining allowance for each part of the blade be more uniform, and improving the processing#br# efficiency and precision manufacturing effectively.#br# Key words: digital measurement; tolerance evaluation; datum matching; points cloud
摘要: :随着航空、航天、船舶、汽车和模具工业的飞速发展,复杂曲面的数字
化测量与误差评定技术对曲面加工精度起着越来越重要的作用。利用激光跟踪测量设备对大
型定子叶片铸件进行了数字化测量,对测量点云进行了去噪、精简等数据处理,并将测量点
云与理论模型进行了基准匹配,计算出了定子叶片铸件各部位的误差分布,实现了对大型定
子叶片铸件的误差评定;测量及误差分析结果可以用于优化叶片在后续加工中的装夹姿态,
使叶片各部位的加工余量趋于均匀,有效提高产品制造精度和加工效率。