Shape Inspection of Gear Prototypes Using Reverse Engineering Method

Abstract

Reverse engineering is a technology that enables acceleration of data collecting for CAD, CAM, CAE systems, which also means shortening time of development, construction and components production. It is a transfer process of a physical component to a digital format. Generally, the technology of reverse engineering means a conversion of analogue data to digital data that are further processed. Every single industry branch rising their requirements on accuracy, dimension, quality, etc. Therefore, digitisation is applied in many production fields such as an automotive industry, aircraft or shipping, medicine, industrial design, design, etc. An article deals with an analysis of prototype models of gears in various stages of production. The realized inspection of a shape of prototype gears lied in uploading of a digitised referential CAD model (the gear after heat treatment and machining), subsequent setting up of digitised prototype gears (the gear after the machining, gear after heat treatment) in respect of this referential CAD model, a control of their dimensions and forming a colour map of deviations in chosen points.

Analysis of the Wear on Machined Groove Profiles Using Reverse Engineering Technology

“…ATOS is a leader in the field of high quality control applications and highly demanding industrial digitization. It is easily adaptable to different measurement sizes with and easy calibration based on supplied calibration elements [1][2][3][4].…”

“…Digitalization is the process of acquiring a digital image in which the continuous image function f(x, y) is substituted by the corresponding discrete function I(x, y). Digitization includes the following two steps [1][2][3][4][5]:…”

“…These errors can be minimized by a proper setting of digitization parameters, such as a quantization interval or sample rate. The way of digitization or used methods of reverse engineering are influenced by the following factors [1][2][3][4][5]:…”

“…Advanced mathematical methods are used to automatically calculate the location of individual points in scanned space. The scanning process consists of the following main steps [1,2,6,7]:…”

“…In reverse engineering, a physical object is available at the beginning and it is converted into digital CAD model thereafter. A designer can further work with this model as needed using the available CAx data processing applications [1][2][3][4].…”