Robot Kinematics & Motion
Robot kinematics describes the relationship between joint angles and the resulting end-effector position. Understanding this is crucial for programming robot movements accurately. Forward kinematics calculates the position of the tool given joint angles, while inverse kinematics determines the required joint angles to achieve a desired tool pose.
θ = [θ1, θ2, ..., θn]
Actuation Systems
Industrial robots primarily utilize electric motors for actuation. Servo motors provide precise speed and position control, essential for many robotic applications. Variable Frequency Drives (VFDs) are commonly used to regulate motor speed based on feedback from encoders.
Torque = K * Angular Velocity
Sensing & Feedback
Robots rely heavily on sensors for feedback. Encoders measure joint angles, while force/torque sensors detect external forces. Vision systems (cameras) provide visual information for tasks like object recognition and path planning.
Position = ∫ Velocity * dt
Safety Considerations
Robot safety is paramount. Systems like Safety Rated Monitoring Devices (SRMDs) and light curtains detect potential collisions, triggering emergency stops. Collaborative robots (cobots) are designed to work safely alongside humans using force-torque sensors and compliant designs.
Frequently asked questions
What is a teach pendant?
It's a handheld device used by operators to program and control robots.
Why are robots so expensive?
High initial cost due to specialized components, programming, and safety systems.
Can robots learn?
Modern robots utilize machine learning algorithms for tasks like object recognition and adaptive control.
Try it live
Everything above runs in your browser — open Inverse Kinematics (FABRIK) and change the parameters while it is running. Nothing is installed, nothing is uploaded, the whole model lives in one tab.
▶ Open Inverse Kinematics (FABRIK) simulation