Robot Base Plate Centering Structures for Reproducible Positioning

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Solution Overview

Problem

Large robot systems face difficulties in being rolled and transported, often requiring lifting trusses or forklifts, which can lead to collisions and damage if not moved sensitively. Additionally, insufficient tilt protection can occur due to the range of the gripping arm and the weight of the moving load.

Innovation Solution

A robot system comprising a robot and a floor slab with centering structures, including cone or pyramid-stump-shaped leads on the floor slab and corresponding recesses on the robot, ensures reliable centering even when the robot is parked in a vertical storage movement. The system also includes locking structures for tilting-safe alignment and easy release mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the robot is moved using pallet trucks or forklifts for transport, then the robot can be transported, but collisions and damage may occur if not moved with sufficient sensitivity

Engineering Contradiction:
ImprovetransportabilityVSAvoidrisk of collisions and damage
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies preliminary action by providing centering structures (conical projections on the base plate matching conical recesses on the robot base) that automatically center the robot horizontally during the vertical lowering process. This preliminary centering action occurs before the robot is fully positioned, preventing collisions and damage by ensuring proper alignment is established in advance of final placement.

Inventive Principle:
Principle #10Preliminary action

2Device complexity

If the robot is locked only at its front edge, then the locking mechanism is simple, but tipping protection is insufficient depending on gripper arm reach and load weight

Engineering Contradiction:
Improvelocking mechanism complexityVSAvoidtipping protection
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The patent applies dimensionality change by transitioning from a single-point front edge locking mechanism to a distributed multi-point locking system. Locking structures are provided at multiple locations including the front edge and rear of the robot base, distributing the stabilizing force across multiple dimensions and points of contact. This multi-dimensional approach significantly improves tipping protection while maintaining reasonable mechanism complexity through the use of simple locking levers at each point.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Loss of time

If centering structures are added to workstations for reproducible setup positions, then calibration effort is reduced, but the workstation complexity increases

Engineering Contradiction:
Improvecalibration timeVSAvoidworkstation complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent applies self-service by designing centering structures that automatically perform the centering function without requiring external calibration equipment or procedures. The conical projection-recess centering mechanism and multi-point locking structures enable the robot to self-center and self-lock into a reproducible setup position simply by being lowered onto the base plate, eliminating the need for complex calibration procedures while adding only minimal structural elements to the workstation.

Inventive Principle:
Principle #25Self-service

Data Source

PatentEP4541519A1Robot system comprising a robot and a floor panel
Publication Date: 2025.04.23 IGZ ING FUR LOGISTISCHE INFORMATIONSSYST MBH
  • EP4541519A1 patent drawingFigure 1
  • EP4541519A1 patent drawingFigure 2
  • EP4541519A1 patent drawingFigure 3

AI summary

The invention relates to a robot system (10) comprising a robot (12) and a base plate (14) for positioning the robot (12) in a defined installation position, the base plate (14) being designed for anchoring in the floor. It is proposed that the base plate (14) and the robot (12) include centering structures (22a, 22b) for centering the robot (12) during the process of vertically positioning the robot (12) on the base plate (14), wherein, during the process of vertically positioning the robot (12) on the base plate (14), the robot (12) is moved in both horizontal directions into the defined installation position by the centering structures (22a, 22b).