摘要
在市面上一般常用的齒輪檢測大多是以接觸的方式為之，而高精度的齒輪則需依賴昂貴的齒輪量測儀量測，對於小尺寸齒輪及非圓形齒輪的量測則還在開發階段尚未成熟，因此，本專題研究旨在開發利用影像處理技術，對平面齒輪中之正齒輪及非圓形齒輪進行精度檢測。目前影像量測儀的功能，大多是以點、線、圓、弧來測量待測元件，因此，應用於齒輪的量測上只能求出齒頂及齒根圓。由於齒輪的齒形為一複雜曲線，現有的影像量測儀無法測量出齒輪的重要尺寸及齒形精度，特別是小尺寸齒輪及非圓形齒輪的量測。因此，本專題研究開發影像處理應用於正齒輪與非圓形齒輪的量測技術，在正齒輪部份，針對正齒輪的外型輪廓進行特徵的擷取與計算，以量測出齒輪的外徑、根徑、齒厚…等基本參數，並求出齒形精度、節距誤差…等各項重要精度指標，為了驗證本研究所開發之系統，使用接觸式量測並取其量測參數與本研究所開發之系統作誤差比較。在非圓形齒輪部分，利用像素點搜尋法來量測出齒厚、節距、齒高…等基本參數。 本專題研究所開發之量測系統亦結合了市售2.5D量測儀器，並應用到微小齒輪的量測。本專題研究提供一可靠的齒輪量測方式，更可解決以往無法量測小尺寸正齒輪及非圓形齒輪製造精度之課題，成果亦可應用於其他型式的平面齒輪。
並列摘要
In Commercial, most of the measurements of gears are measured by the direct contact between the stylus and gears. However, the device is expensive and can’t be applied to the small gears and non-circular gears. The main objectives of this project are to develop a measurement system for the planar gears of spur gears and non-circular gears by the image processing technology. Now, the commercial image measurement systems could measure the point, line, and fillet of a work. It can only be applied to measure the outside and inside diameters of gears but not the profile deviation, pitch error, and so on, due to the gears complicated geometry. Therefore, the measurement system of planar gears of spur gears and non-circular gears using the image process technology is developed here. For the spur gears, the developed system can be applied in the measurement of the important parameters and precision of gear tooth profile, etc. In order to validate the developed system, the direct contact measurement is also proceeded. In the measurement of non-circular gears, pixel search method is applied to measure the tooth thickness, pitch, addendum and dedendum. In this thesis, the project developed measurement system is also combined with a commercial 2.5D CMM(Coordinate Measuring Machine) measuring instruments. This thesis provides a reliable and powerful method to measure the spur and non-circular gears and the results can also be applied to the other types of planar gears.