Vacuum Suction Cup Test Device Alignment

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Solution Overview

Problem

Existing test devices for vacuum suction cups of gripping devices lack precise positioning capabilities, leading to potential errors during status checks, which can compromise the reliability of the testing process.

Innovation Solution

A test device with a carrier arrangement featuring alignment elements that allow for accurate positioning of the gripping device in the XY plane, utilizing elastically flexible mounts and a cover with sealing elements to ensure precise alignment and protection from contaminants, enabling reliable testing of vacuum suction cups.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If alignment elements are added to the carrier arrangement, then positioning accuracy is improved, but device complexity increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoiddevice complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The alignment elements are integrated directly into the carrier arrangement structure, merging the alignment function with the existing carrier components rather than adding separate alignment mechanisms. This reduces overall device complexity while achieving precise positioning of the gripping device relative to test devices.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent replaces complex mechanical positioning systems with a simplified alignment element system that uses geometric features and reference surfaces. This substitution reduces mechanical complexity while maintaining high positioning accuracy through precise geometric relationships between alignment elements and reference surfaces.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If elastically flexible mounts are used, then positioning accuracy is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoidmanufacturing complexity
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The elastically flexible mounts utilize material parameter changes (elasticity) to achieve positioning accuracy. By selecting materials with appropriate elastic properties, the mounts can compensate for manufacturing tolerances and thermal expansions, achieving high positioning accuracy without complex adjustment mechanisms while remaining manufacturable through standard elastic material selection and simple geometric design.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If sealing elements are added to protect from contaminants, then reliability is improved, but device complexity increases

Engineering Contradiction:
ImprovereliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sealing elements are designed to serve multiple functions: protecting test devices from contaminants, providing a reference surface for alignment, and potentially serving as a mounting surface. This multi-functionality reduces the need for separate protective components, thereby limiting the increase in device complexity while improving reliability through contamination protection.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3838507A1Test device and method for checking the status of vacuum suction devices of a gripping device
Publication Date: 2021.06.23 TRUMPF WERKZEUGMASCHINEN GMBH & CO KG
  • EP3838507A1 patent drawingFigure 1
  • EP3838507A1 patent drawingFigure 2~3
  • EP3838507A1 patent drawingFigure 4~5

AI summary

The invention relates to a test device and a method for condition monitoring of vacuum suction cups (35) of a gripping device (27), comprising several test devices (52) which are oriented towards the outside of a support arrangement (51) in at least one test field (53) and lie side by side in an XY plane of the support arrangement (51) and are spaced apart from each other, so that each vacuum suction cup (35) can be positioned relative to the test device (52), wherein the support arrangement (51) has at least two alignment elements (54) which are designed for aligning the gripping device (27) correctly in the XY plane relative to the support arrangement (51), so that the respective vacuum suction cups (35) of the gripping device (27) are aligned with the respective test devices (52) of the support arrangement (51). (See Figure 4)