Lecture

Mechanisms in Robotics: Springs

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In course

MICRO-451: Applied and industrial robotics

This course is a real contact with industrial robotic applications. Components and mechanisms are reminded. The fields of microtechnical assembly and packaging are treated. CTOs from established companies (BlueBotics, Adept, Maxon motors and UniTechnologie ...

Description

This lecture introduces the mechanisms in robotics, focusing on springs and their various applications. The instructor covers the design and function of springs in robots, including overconstraint mechanisms, backlash reduction, and energy storage. The lecture also explores the use of springs to compensate for gravity, store energy, and correct alignment in robotic systems.

Instructor

Mohamed Bouri

Dr. Mohamed Bouri is a group leader of Rehabilitation and Assistive Robotics in LSRO and lecturer of Robotics and Industrial Robotics. He graduated in Electrical Engineering in 1992 and obtained his PhD degree in 1997 in Industrial Automation at INSA LYON, France. Since 1997, he is at EPFL and is mainly active in the field of robot control, automation and robot design for medical and industrial applications. He is the head of Rehabilitation and Assistive Robotics group since 2005 and has strong references with the development of robotic devices for lower limb rehabilitation : The MotionMaker and WalkTrainer commercialzed by the company Swortec. His ongoing research currently focuses on the development of exoskeletons and the associated control strategies. His main current projects are TWIICE, a lower limb exoskeleton for people with paraplegia, AUTONOMYO, a walk assistance exoskeleton for people with muscle weakness, and the HiBSO, a hip orthosis for elderly.

Official source

Ontological neighbourhood

Mechanical engineering

Robotics: Topics in robotics

Related concepts (32)

Robotics

Robotics is an interdisciplinary branch of electronics and communication, computer science and engineering. Robotics involves the design, construction, operation, and use of robots. The goal of robotics is to design machines that can help and assist humans. Robotics integrates fields of mechanical engineering, electrical engineering, information engineering, mechatronics engineering, electronics, biomedical engineering, computer engineering, control systems engineering, software engineering, mathematics, etc.

Robotic arm

A robotic arm is a type of mechanical arm, usually programmable, with similar functions to a human arm; the arm may be the sum total of the mechanism or may be part of a more complex robot. The links of such a manipulator are connected by joints allowing either rotational motion (such as in an articulated robot) or translational (linear) displacement. The links of the manipulator can be considered to form a kinematic chain. The terminus of the kinematic chain of the manipulator is called the end effector and it is analogous to the human hand.

Robot

A robot is a machine—especially one programmable by a computer—capable of carrying out a complex series of actions automatically. A robot can be guided by an external control device, or the control may be embedded within. Robots may be constructed to evoke human form, but most robots are task-performing machines, designed with an emphasis on stark functionality, rather than expressive aesthetics.

Shock absorber

A shock absorber or damper is a mechanical or hydraulic device designed to absorb and damp shock impulses. It does this by converting the kinetic energy of the shock into another form of energy (typically heat) which is then dissipated. Most shock absorbers are a form of dashpot (a damper which resists motion via viscous friction). Pneumatic and hydraulic shock absorbers are used in conjunction with cushions and springs. An automobile shock absorber contains spring-loaded check valves and orifices to control the flow of oil through an internal piston (see below).

Robotic sensing

Robotic sensing is a subarea of robotics science intended to provide sensing capabilities to robots. Robotic sensing provides robots with the ability to sense their environments and is typically used as feedback to enable robots to adjust their behavior based on sensed input. Robot sensing includes the ability to see, touch, hear and move and associated algorithms to process and make use of environmental feedback and sensory data.

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