In industrial robotics, a pick-and-place manipulator is a limited-function robot designed for point-to-point operation, moving between taught positions rather than executing complex continuous-path motions.

Difficulty: Easy

Correct Answer: Capable of point-to-point operation

Explanation:


Introduction / Context:
Robot manipulators are categorized by motion capability. Pick-and-place units are common in packaging, assembly, and sorting where speed and repeatability between discrete points matter more than complex trajectories. Recognizing their defining capability helps select the right robot for a task and avoid over-specification.


Given Data / Assumptions:

  • Task involves moving items between predefined locations.
  • Path shape is less critical than end-point accuracy and cycle time.
  • Controller stores taught points and executes motion segments between them.


Concept / Approach:
Point-to-point (PTP) robots move from one taught position to another with controlled velocity/acceleration but without strictly constraining the intermediate path. Continuous-path robots, by contrast, control trajectory throughout, enabling arc welding or painting. Pick-and-place systems excel at repetitive transfers with low variability and limited sensing/intelligence requirements.


Step-by-Step Solution:
Identify the typical motion pattern: discrete transfers between points.Map to motion class: point-to-point operation.Eliminate claims of superior flexibility or general intelligence.Select the option that names PTP capability directly.


Verification / Alternative check:
Datasheets for pick-and-place (SCARA/delta-style) emphasize PTP cycles per minute and repeatability, not complex path following, affirming the definition.


Why Other Options Are Wrong:
Most flexible: false; multi-axis continuous-path robots are more flexible.Intelligent robot: intelligence is not implied by pick-and-place mechanics.Large parts handling: these robots often manage small/medium parts at high speed.None of the above: incorrect because PTP capability is correct.


Common Pitfalls:
Overestimating path accuracy between points; ignoring tooling and fixturing that determine success as much as robot mechanics.


Final Answer:
Capable of point-to-point operation

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