Robot manipulators design-2

 

Robot manipulators are used in the most of the automated systems nowadays n this post, we brief some explanations in the fundamentals that robotic engineer needs them in order to design a robot manipulator which are 1-To know the task that the robot will do it later 2- To know the exact and specified workspace where, and how the robot manipulator will work 3-to decide the construction of the robot manipulator according to the payload that the end effector will elevate later on so that we can select the material types, and also decide elements shape and dimensions too. Robot arms have lots of benefits in our life application so that they can eliminate time-wasting for manufactures softly, relatively quick in returning money to the investors, free human workers from risk, hazardous and dull, eliminate errors, and they can work 24/7 with Non-stop working. Robot arm elements are strictly similar to the human arm so it has a base, shoulder, elbow, wrist, and end effector. In comparing to a human being arm the base is the body of a human and the hand is represented with end effector so they perform the same target in all conditions. As a starting point, we chose a workspace, to begin with. The workspace can be defined as the place where the robot arm can reach from different orientations. There are two methods to specify, study, and analysis workspace of the robot manipulator which are the graphical method, and analytical method. In the graphical method, we can draw the robot mechanism with CAD program so that the workspace will be specified from the generated shape. However, in the analytical method, we can derive formulations of the workspace by analyzing the understandable geometrical shapes and using some algebraic theorems. Finally, we can verify our workspace analysis by comparing both methods so that if they are similar to each other, we can be sure that our analysis is correct and we can go further in our next steps that I will explain in the coming videos.