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DM312 - W9
Robot Classification, Applications, Kinematics and Dynamics
Question | Answer |
---|---|
What can Cartesian Robot's do? | pick and place, assembly, palletising |
What can Cylindrical Robot's do? | machine tool servicing, palletising |
What can Delta Robot's do? | very high speed pick and place (up to 300 picks per minute) |
What can SCARA Robot's do? | high speed pick and place, assembly, higher payload capability than Delta, rigid in the Z-axis and compliant/pliable in the XY-axes, which allowed it to adapt to holes in the XY-axes |
What can Jointed Arm Robot's do? | spot and arc welding, paint spraying, adaptable |
What can Polar/Spherical Robot's do? | heavy duty manipulation (now uncommon) |
What are the 3 Drive Methods? | Electric, Hydraulic, Pneumatic |
Why use an Electric Drive Method? | most common due to ease of control, low noise |
Why use an Hydraulic Drive Method? | very heavy duty manipulation, less common |
Why use an Pneumatic Drive Method? | simple movements, high speed, low cost |
What are 5 control methods? | Servo, Non-Servo, Point-to-Point, Point to Point with Coordinated Path line tracking, Continuous Path. |
What applications do you use a Servo control method in? | full speed and acceleration control |
What applications do you use a Non-Servo control method in? | only for very light loads |
What applications do you use a Point-to-Point control method in? | assembly, palletising, pick and place |
What applications do you use a Point to Point with Coordinated Path line tracking control method in? | spot welding car bodies on a moving conveyor |
What applications do you use a Continuous Path control method in? | spray painting, arc welding, fettling |
What are 3 Programming Methods? | Teach by Pendant, Lead Through, Off-Line |
Why use a Teach by Pendant Programming Method? | This is an online method which can be used to perform assembly, pick and place, welding tasks. |
Why use a Lead Through Programming Method? | This is an online method which can be used to perform spray painting, casting tasks. |
Why use a Off-Line Programming Method? | Code can be changed for a new task while the robot is running so old tasks, such as assembly and welding, are not interrupted. |
What is online programming? | Online methods require direct use of a robot in order to program it. |
What benefit do Parallel or Delta robots have? | This approach is that it reduces the weight within the arms and therefore provides very high acceleration and speed capability |
What Applications do Parallel or Delta robots have? | The main application is picking, particularly on packing lines for the food industry, and also assembly applications |
What are the 6 Joint types? | Revolute, Prismatic, Screw, Cylindrical, Spherical, Planar |
What are the most common Joints used? | Most manipulators have revolute joints or have sliding joints called prismatic joints. |