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Industrial & hardwareStatus: Pilot

Automated drilling unit with a safety concept

Challenge

A manual machining step in an existing production setup was to be automated as a machine of its own: repeatable sequences, safe emergency-stop logic and operation that works without training.

Technology

  • Python
  • FastAPI
  • OPC UA
  • SPS (IEC 61131-3 ST)
  • ESP32
  • Node-RED
  • EPLAN

Requirements

  • Teach function for drilling positions and sequences
  • Fail-safe behaviour on emergency stop (clamping, spindle stop)
  • Operation via a web interface
  • Safety concept to EN ISO 13849-1 and an OT zone model
  • Two variants: robot axis or PLC with pneumatics

Approach

  1. 01Variant 1: sequence control against a linear robot, web operation as a standalone application
  2. 02Variant 2: state machine and interlocks on an industrial PLC in Structured Text, OPC UA to the web client
  3. 03ESP32 firmware for a stepper-driven clamping brake
  4. 04Electrical design, network hardening and a decision paper for sign-off

Contact

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