I. Articulated Robotic Arms

Basic Concepts

  • 6 rotating axes (6 DOF), human arm-like structure
  • Working radius 0.5-4m, repeat positioning accuracy ±0.02mm
  • Payload range from a few kg to several hundred kg

Typical Applications

AreaApplicationParameters
Automotive manufacturingSpot welding30-50 weld points/minute
Electronics assemblySMT mountingAccuracy 0.01mm
Logistics handlingPalletizing1000 boxes/hour

Market Status

  • Global stock exceeds 3 million units, 59.7% of industrial robots
  • Major manufacturers: Fanuc, ABB, Yaskawa, Kuka (combined over 65% share)

II. SCARA Robotic Arms

Mechanical Structure Characteristics

  • 4 DOF: 2 horizontal joints + 1 vertical linear + 1 end rotation
  • High speed: cycle time can be as short as 0.3 seconds
  • Accuracy: ±0.01mm ~ ±0.02mm

Typical Applications

  • Electronics manufacturing: mobile phone assembly, PCB component insertion
  • Semiconductor industry: wafer handling, chip packaging
  • Medical field: laboratory automation

Market

  • Market share approximately 15%
  • Major manufacturers: EPSON, YAMAHA, KUKA, ABB

III. Cartesian Coordinate Robots

Performance Advantages

  • High rigidity: box beam structure, can withstand several tons of heavy loads
  • High precision: repeat positioning accuracy ±0.02mm
  • Load capacity: 5kg-5000kg

Typical Applications

  • Automotive manufacturing: body welding, handling
  • CNC machining: machine loading/unloading
  • Logistics and warehousing: palletizing, packaging

IV. Delta Parallel Robots

Performance Characteristics

  • High-speed motion: acceleration 15-20g, speed exceeding 10m/s
  • High precision: ±0.01mm
  • Lightweight design, payload 1-5kg

Application Fields

  • Food packaging: chocolate sorting (200 pieces/minute)
  • Pharmaceutical industry: tablet counting, capsule packaging
  • Electronics manufacturing: SMD component picking

V. Collaborative Robotic Arms

Safety Features

  • Force feedback system: millisecond response, sensitivity 0.1N
  • Physical protection: rounded design, soft material covering
  • Motion limits: speed <1m/s, power <80W

Market Development

  • 2023 global market size: approximately $1.5 billion
  • Annual growth rate: 20-30%
  • Major manufacturers: Universal Robots, FANUC, ABB, KUKA

Application Advantages

  • Easy programming: drag-and-drop teaching, graphical interface, training 4-8 hours
  • Flexible deployment: 20-40kg, can quickly transfer between workstations

VI. Other Types

Traditional Types (Gradually Being Replaced)

  • Cylindrical coordinate type: simple handling, gradually replaced by SCARA
  • Polar coordinate type: early painting and welding, market share <5%

Emerging Types

  • Dual-arm collaborative robot: two 7-DOF robotic arms
  • Soft continuum robot: flexible materials, minimally invasive medical surgery
  • Modular reconfigurable robot: quick replacement of end effectors

Summary

TypeCharacteristicsMarket Share
ArticulatedHigh DOF, complex trajectories59.7%
SCARAHigh-speed precision, planar assembly15%
CartesianHigh rigidity, heavy load15%
DeltaHigh speed, lightweight5%
CollaborativeSafe and flexibleRapid growth

Main Trends:

  1. Intelligence: integrated AI algorithms, autonomous decision-making
  2. Flexibility: modular design, rapid product changeovers
  3. Safety: advances in collaborative robot technology
  4. Integration: deep integration with vision, force control, and IoT