Robot Arm Design: Calculating Torque Needed

  • Context: Undergrad 
  • Thread starter Thread starter jmay
  • Start date Start date
  • Tags Tags
    Arm Design Robot
Click For Summary
SUMMARY

The discussion focuses on calculating the torque required for a three-jointed robotic arm designed to lift 40 pounds. The formula used is torque = distance times mass, specifically in Foot-Pounds. Participants discuss how to determine torque at full extension and inquire about calculating torque at half extension, suggesting the use of the lifting angle and the sine function for accurate torque assessment.

PREREQUISITES
  • Understanding of basic physics principles, particularly torque calculations.
  • Familiarity with robotic arm design and joint mechanics.
  • Knowledge of trigonometry, specifically sine functions and angles.
  • Experience with CAD software for visualizing robotic arm diagrams.
NEXT STEPS
  • Research "Torque calculations for robotic arms" to deepen understanding of torque dynamics.
  • Learn about "Joint kinematics in robotic systems" to optimize arm movement.
  • Explore "Using CAD software for robotic design" to visualize torque applications.
  • Investigate "Advanced trigonometry in engineering" for precise angle calculations in torque assessments.
USEFUL FOR

Robotics engineers, mechanical designers, and students involved in robotic arm development and torque calculations will benefit from this discussion.

jmay
Messages
2
Reaction score
0
I am design a three jointed robotic arm that can lift 40 pounds. A diagram of the arm is attached.
How can I calculate the torque needed at each motor to lift the 40 pounds?
 

Attachments

  • diagram.jpg
    diagram.jpg
    7.1 KB · Views: 476
Physics news on Phys.org
torque = distance times mass = e.g. Foot-Pounds

is that what you need?
 
That's how I've been doing the calculation. This finds the torque at the full extension of the arm. How can I find the torque need at half extension? Would I find the lifting angle and multiply by the sin of the angle?
 

Similar threads

Undergrad Seemingly a contradiction of conservation of energy?
  • · Replies 51 ·
2
Replies
51
Views
5K
Undergrad Forward kinematics of a snake robot
  • · Replies 7 ·
Replies
7
Views
2K
Undergrad Question about force from a torque arm extension
  • · Replies 31 ·
2
Replies
31
Views
3K
Undergrad Maximum torque without wheel slip
  • · Replies 9 ·
Replies
9
Views
2K
Undergrad Will This Friction Clamp Hold the Weight?
  • · Replies 10 ·
Replies
10
Views
2K
Undergrad Calculating Torque needed to raise an object
  • · Replies 2 ·
Replies
2
Views
1K
High School Lever balancing physics (video game design)
  • · Replies 18 ·
Replies
18
Views
3K
How to calculate required torque for a robot arm
  • · Replies 2 ·
Replies
2
Views
4K
Torque required to move robot arm (special linkage)
  • · Replies 3 ·
Replies
3
Views
2K
Can Ancient Metalworking Techniques Enhance Modern Robotic Arm Design?
  • · Replies 6 ·
Replies
6
Views
2K