Which one of the following symbols is used as the notation for designating arm and body of a robot with jointed arm configuration? 

This question was previously asked in
ESE Mechanical 2020 Official Paper
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  1. TRL 
  2. TLL, LTL, LVL 
  3. LLL 
  4. TRR, VVR

Answer (Detailed Solution Below)

Option 4 : TRR, VVR
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Detailed Solution

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Concept:

Robot with jointed arm configuration for 3 DOF-robot carries all its joints as revolute.

It can be TRR, VRR and other combinations of T, R and V.

For e.g., TRR configuration consists of a vertical column, that swivels about the base using a T joint. At the top of the column is a shoulder joint (R joint), output to an elbow joint (R-joint).

F1 S.C Madhu 20.04.20 D 5

Robot configuration

(Arm & Body)

Symbol

Jointed arm configuration →

TRR, VVR

Polar configuration →

TRL

Cylindrical configuration →

TLL, LTL, LVL

Cartesian configuration →

LLL

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