Chap 10 Scheme of Mechanism system Chap 10.1 Review Design Process Chap 10.2 Design Process of Kinematic scheme of the mechanism system
Chap.10 Scheme of Mechanism system Chap.10.1 Review Design Process Chap.10.2 Design Process of Kinematic Scheme of the Mechanism System
Chap 10.1 Design Process Problem definition + Concept Generation Concept Selection Why? D What? Embodiment Design 9 Which? Detail design How? Fabrication Evaluation
Chap.10.1 Design Process Problem Definition Concept Generation Concept Selection Embodiment Design Detail Design Fabrication Evaluation Iteration Why? What? Which? How?
Chap 10.2 Design process of kinematic scheme of the mechanism system ■ Process a Example
Chap.10.2 Design process of kinematic scheme of the mechanism system ◼ Process ◼ Example
Design process working principle of the machine Motion forms analysis Redesign Type synthesis of the mechanisms Cooperation design Dimensional synthesis of mechanisms Evaluation Kinematic diagram of the mechanisms
Design process Redesign working principle of the machine Type synthesis of the mechanisms Dimensional synthesis of mechanisms Evaluation Motion forms analysis Cooperation design Kinematic diagram of the mechanisms
Working principle of the Machine Stepl a Gear cutting: form cutting and generating cutting Sheet transmission machine ND Creation conclusion
Working Principle of the Machine Step1 ◼ Gear cutting: form cutting and generating cutting ◼ Sheet transmission machine: Creation & conclusion
Motion forms analysis step2 a Analyze and decompose the motion which machine needs think out the motion forms Method imitation creation nnnn Creation conclusion
Motion forms analysis Step2 ◼ Analyze and decompose the motion which machine needs, think out the motion forms. ◼ Method: imitation, creation Creation & conclusion
Type synthesis of the mechanisms Step3 Choose, combine into or create the mechanisms a Principle satisfy the requirements, choose mechanisms as simple as it can be, limit the size, choose suitable kinematic pairs consider the drivers, good dynamic characteristics, be adjustable, be safe
Type synthesis of the mechanisms Step3 ◼ Choose, combine into or create the mechanisms ◼ Principle: satisfy the requirements, choose mechanisms as simple as it can be, limit the size, choose suitable kinematic pairs, consider the drivers, good dynamic characteristics, be adjustable, be safe
Cooperation design step4 Cooperation of the function, time and space. To ensure the cooperation of working links, the working cycle diagram is drawn It is a time table for the actions of all the working links 1. Principle 2. Method 3. Working cycle diagram
Cooperation design step4 Cooperation of the function, time and space. To ensure the cooperation of working links, the working cycle diagram is drawn. It is a time table for the actions of all the working links. 1.Principle 2.Method 3.Working cycle diagram
Principle 1. Operation Order(sequence of actions) 2. Step and cycle 3. Layout and no interference 4. Efficiency and less energy
Principle 1. Operation Order(sequence of actions) 2. Step and cycle 3. Layout and no interference 4. Efficiency and less energy
Method 1. Working cycle 2. Working time of the each mechanism 3. Motion cooperation
Method 1.Working cycle 2.Working time of the each mechanism 3.Motion cooperation