Robotics

Logic

brain microcontroller

Structure

metal, screws, shafts

Motion

wheels, motors, gears, bearing flats

Power

battery

Control

joystick

Sensors

shaft encoder, bump switch

manipulator

performs physical manipulation tasks, such as lifting, moving and placing objects, ex; industrial robotic arm , gripper, welder

accumulator

Stores energy; in a robotic arm for heavy lifting the accumulator helps sudden burst of power when the arm needs to lift or move a heavy object. battery, capacitor

Lift

linear lift mechanism used to move objects straight up and down. ex; elevator style lift, grabbers, and scoops.

hex nuts

Hex nut is a larger, not locking nut that only fits into Hex Nut Retainers, and must go on the outside of a C Channel

Kep nuts

 A keps nut is a locking nut with an external tooth lock washer, and can be hand-tightened and still give a strong hold

Nylock nut

a nylock nut is a locking nut with a nylon insert, useful for more permanent connections, that must be tightened with a tool.

 idler gear

An idler gear is a gear placed between the input and output shafts. It relays motion without changing speed or torque. (between the drive gear and the driven gear).

Spur gear

A spur gear is a cylindrical toothed gear with teeth parallel to the shaft and is used to transfer mechanical motion as well as control speed, power, and torque between shafts.

bevel gear

 A bevel gear is a toothed rotating gear used to transfer energy or power between shafts that are intersecting.

1. Explain what happens as the length of your arm increases what decreases?

As the length of your arm increases, speed decreases and torque increases.

1. How do we calculate output speed? Create a sample problem.

Input speed/gear reduction = output speed. Driven/driving = gear reduction. 

1. You will have to calculate the distance in inches, how long in seconds, and the circumference.

If you calculate in inches and it;s in feet divide by 12, if you have to calculate in seconds and it’s in minutes divide by 60, and the circumference is the diameter of your wheel times pie.

1. How do we calculate Output Torque?

Input torque x gear reduction = output torque