Study on the accuracy measurement and compensation on gear type of manual 90 degree rotating axis

• Main Author: 林宸緯
• Other Authors: 陳明飛
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/01781511345535375180

碩士 === 國立彰化師範大學 === 機電工程學系 === 102 === The purpose of this article is aim to discuss about the geometric accuracy and errors analysis/difference before making compensation on a bridge type milling machine installed with a 90 degree rotating axis and after making compensation. It’s tested by making a ISO 10791-7 test piece cutting to make comparison in between. The test piece has a hole with diameter of 125mm on the right and left sides. We made a boring on both sides without compensation and made concentricity measurement by CMM instrument. Then make an analysis through the CMM measured data and the accuracy/tolerance difference of the workpiece before compensation. The accuracy/tolerance of the wokpiece might be changed after installing the gear type of manual 90 degree head, and affect/ change the tool center point. Therefore, we made the tool center point compensation while converting vertical machining to horizontal machining. The research result appeared that the CMM measured concentricity before compensation is about 0.03~0.05mm. However, the concentricity was improved to 0.02mm after compensation.