Uma metodologia para automação do processo de conformação por calandras

Abstract

The present work presents the development of a methodology for transforming conventional roll benders of industrial tubes and plates into an equipment with a programmable automatic system for bending parts with fixed and/or changeable rays. A conceptual mechanical project (without details) is presented and computational resources were implemented for recognition of drawings defined in a system of computer aided design with the objective of automatically generating the task-program, being capable of making the conformation of the projected part. This way, the requirement of programmable operation is satisfied and the equipment will work according to principles of numerical command machines. Besides that, the proposal considers the necessary adjustment in the machine operational parameters because of the material springback through the image processing extracted from a photo of the conformed part. Thus, the ray executed in the part is recognized and makes it possible to compare it with the projected ray. According to this study, the system was implemented as an applicative of CAD system for the technique viability analysis and was concluded to be viable, since the programming methodology was implemented successfully and the results were satisfactory, the user can draw a part in a CAD system and a program CNC is generated for the execution of the part. Other related and important aspects for the development of the methodology are discussed, such as: CNC programming, image processing, CAD programming systems and the process of mechanical forming to bend tubes or plates.