Efficient and generalized method for measurement and evaluation of thermal deviation characteristics in Multi-task machine

多任务机热偏差特性测量与评估的高效通用方法

• 批准号: 18560112
• 负责人: SHIMIZU Shinji
• 金额: $ 2.37万
• 依托单位: Sophia University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560112/
• 关键词: Multi-task machine; Thermal deviation; Evaluation method; Linear motion; Swing motion; Thermal deformation mode

The purpose of this research is to establish the method for measurement and evaluation of thermal deviation characteristics caused by feed motions in Multi-task machine. The followings are revealed by this research.1. The measuring systems for evaluation of thermal deviation characteristics caused by linear motion in Z or X direction were developed for a multi-task machine. Using these systems, the characteristics were actually evaluated for liner motions (X or Z axis) and swing motion (B axis). Since these evaluation results corresponded to the structural form and the location of heat sources in the machine, the validity of this proposed method was clarified.2. The estimation of the thermal deformation mode is possible with synthetic evaluation of the measurement results and the information, such as a structural form of the machine. Since this estimation result corresponded to the temperature changes measured at some locations in the machine during the test, the validity of the estimation was clarified.3. For the standardization of this proposed method, the tests for each motion were done with two kinds of the measuring system. As the results, the followings were made clear.1) Using the target fixture in Z direction, the thermal deviation characteristics are evaluated sufficiently2) Since the location of this Z target fixture corresponds to the workpiece position, influence of the thermal deviations on the machining accuracy is evaluated directly3) To evaluate the thermal deformation mode and its mechanism more clearly, it is necessary to do the tests with the X target fixture in addition to the Z target fixture, and to evaluate the both results synthetically.4) Test with the Z target fixture is appropriate for the standardization of this proposed method.

这项研究的目的是建立测量和评估由多任务机器中的进料运动引起的热偏差特征的方法。这项研究揭示了以下内容。1。为多任务机开发了由Z或X方向线性运动引起的热偏差特性评估的测量系统。使用这些系统，实际评估了衬里运动（X或Z轴）和摇摆运动（B轴）的特征。由于这些评估结果对应于机器中热源的结构形式和位置，因此阐明了该提出的方法的有效性2。通过对测量结果和信息（例如机器的结构形式）的合成评估，可以进行热变形模式的估计。由于该估计结果对应于测试期间在机器某些位置测得的温度变化，因此阐明了估计的有效性3。对于该提出的方法的标准化，每种运动的测试是通过两种测量系统进行的。 1）使用Z方向的目标固定器，对热偏差特性进行了充分评估2），因为该Z目标固定装置的位置对应于工件位置，直接评估热偏差对加工精确度​​的影响，以评估Z的固定模式，以评估X的固定量，以评估其确定的固定，以确定Z的固定，并确定X的固定，并将其X固定在X上。综合评估两个结果。4）使用Z目标固定装置的测试适合于该提出的方法的标准化。

项目成果

New Measuring Method for Thermal Deviations Caused by Linear Axis Motion in Multi-Task Machine

多任务机床中线性轴运动引起的热偏差的新测量方法

• 发表时间: 2006
• 期刊: JSME international journal Series C Vol.49,No.2
• 作者: SHIMIZU Shinji;OOI Go;YAGYU Shinsuke
• 通讯作者: YAGYU Shinsuke

Evaluation Method for Characteristics of Thermal Deviation with Swing Motion of Spindle Head for Milling in Multi-task Machines

多任务机床铣削主轴头摆动热偏差特性评价方法

• 发表时间: 2007
• 作者: Shinsuke YAGYU;Shinji SHIMIZU
• 通讯作者: Shinji SHIMIZU