220 - Robotic Drives, Hardware, and Components

Match the hardware with the image below:

(B) end-effector (C) drive (D) joint

Which statement is true regarding robot frame materials?

Aluminum is used to form robot wrists because it is lightweight.

Industrial robots:

Are able to be programmed with a high degree of accuracy.

Which statement is true regarding bearings used for robots?

Bearings reduce friction by supporting moving parts and by aiding alignment.

Which statement is true regarding robot ballscrews? Ballscrews are:

Considered a form of transmission because they convert motor rotation to linear motion.

True or False? Encoders are used to time how long a servomotor is in each position?

False

True or False? Hydraulic drives are so common because they have few drawbacks?

False

True or False? Servomotors have low holding torque and minimal breaking ability?

False

Which statement is true regarding robot wiring and hoses?

Hydraulic lines have to be mounted outside the arm.

Transmissions:

Increase output torque while decreasing output speed.

Which statement correctly describes an electric drive? An electric drive:

Is the most widely used actuator for industrial robots.

Which statement about hydraulic drives is true? Hydraulic drives:

Require a prime mover such as an electric motor to introduce the initial energy needed to perform.

Which statement is true regarding robot sensors?

Sensors can give robots many of the same senses a human would have.

Which statement is true about robot joints?

The first joint must be able to support most of the weight of the arm.

True or False? Electric drives are reliable and can lift heavy loads?

True

True or False? Pneumatic drives are most commonly used for end-effectors?

True

True or False? Servomotors offer excellent position control and accuracy?

True

Which statement about servomotors is true? Servomotors:

Use a measuring device called an encoder for motion control.