Topic 1: Manufacturing Systems - University of Saskatchewan

Topic 1: Manufacturing Systems - University of Saskatchewan

What is this course about? Manufacturing Systems, automation, robotics Context: manufacturing systems Subject: robots and automation handout 1: ME 460 1 Manufacturing Systems Logics of presentation:

System Manufacturing system manufacturing system classification handout 1: ME 460 2 System A set of components that are connected in a way to perform a task in an environment, which fulfills a mission. Example Components are: drive, frame, ram,

bed, etc. They are connected in a definite way to perform a task or function handout 1: ME 460 3 Manufacturing system A system that has an input of material and has an output of material or part, and the output material differs from the input material in a certain area, which is meaningful.

Input Output Example handout 1: ME 460 4 Manufacturing system: classification Manufacturing systems have four levels: 1. Enterprise Enterprise: a system that has its own

independent management. 2. Shop floor Shop floor: a sub-system of an enterprise, where actual manufacturing activities are carried out. 3. Cell or line Cell or line: a group of machines that produce a part. 4. Machine

Machine: a single entity that changes the input material handout 1: ME 460 5 handout 1: ME 460 6 Manufacturing system: classification Classification along the vertical direction:

oEnterprise manufacturing system oShop floor manufacturing system oCell or line manufacturing system oMachine manufacturing system handout 1: ME 460 7 Manufacturing system: classification Classification in the horizontal direction: Various types of oEnterprise manufacturing system, oShop floor manufacturing system,

oCell or line manufacturing system, and oMachine manufacturing system Examples of the different types of machine manufacturing system are: lathe, milling, drilling, etc. handout 1: ME 460 8 What is this course about? Manufacturing Systems, automation, robotics

Context: manufacturing systems Subject: automation and robots handout 1: ME 460 9 Automation and robots Logics of presentation: Automation Robots handout 1: ME 460

10 Automation Perform functions using machines without human interventions. Automation means to execute a group of activities taken by machines in a certain logics. For example, If an order comes, machine A begins to work, and then Machine B. If an order comes, machine A waits for two minutes, and while it waits, Machine B is busy with another order. So, Order of operations by machines, Order may not be pre-known, i.e., discrete event dynamics, Execution needs to be controlled. 11

Automation o Controller for discrete event dynamic systems o Programmable controller, so for many groups of machines o Software port actuator machine. Discrete event system controller Programmable Logics Controller (PLC). To meet well with the discrete event system controller (or PLC), machines need to be reformed, to have at least actuators. More so, machines need

to be reprogrammable, which immediately increases the task flexibility of machines. Such machines must have the following components: Actuator, Body, Sensor, Controller, and Power generator. Robots handout 1: ME 460 13 o Enterprise Commonality:

o Shop floor Several entities that change materials. o Cell or line What is the best schedule with respect to each entity? o Machine Production management planning/ scheduling

handout 1: ME 460 14 Summary This class mainly contains three parts: 1. Robots (programmable machines). 2. Discrete event controller or PLC (programmable systems; e.g., several robots). 3. Production planning and scheduling. My vision: to provide a foundation for you to be able to learn knowledge and technology of automations and robots in future.

handout 1: ME 460 15

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