Questions tagged [joint]

The point of contact between elements of a robot with the parts that surround and support it

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3
votes
1answer
703 views

What do we call a coupling with infinite range of rotation

In most situations, range of motion is limited by the fact that we need to carry power or information past a joint. So, past a certain point there are either cables in the way, or the cables would ...
3
votes
2answers
261 views

What is the name of this mechanical linkage?

I am trying to find a joint like these for a robot I'm building. It is often called a swivel joint or a universal joint, but with a modified spider. I can't find one anywhere and would prefer not to ...
9
votes
1answer
4k views

Building Robotic arm joint

I am very new to robotic design and I need to determine what parts I will need to assemble an arm joint. The joint will contain one timing belt pulley which a remote motor will be turning, a forearm ...
6
votes
3answers
2k views

restricting range of motion with complex constraints

I am looking for a way to restrict a robot's range of motion, using complex constraints such as not tearing of a cable attached to the robot. Take an articulated 6-axis robot arm as shown below, with ...
20
votes
3answers
13k views

How can the inverse kinematics problem be solved?

The forward kinematics of a robot arm can be solved easily. We can represent each joint using Denavit–Hartenberg transformation matrices. For example, if the $i^{th}$ joint is a linear actuator, it ...

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