Compact Separator Quick-Change Mounting for Robot Rivet Feed

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Solution Overview

Problem

State-of-the-art separation modules in robot cells are time-consuming to replace in case of faults, leading to reduced system availability and inefficiencies in handling joining elements like semi-hollow punch rivets.

Innovation Solution

A compact separating device mounted on a joining robot with a quick-change mechanism allows for rapid exchange of separation modules, utilizing a floating base plate and quick-change device to maintain position and enable easy replacement, along with a 90° bend buffer section for efficient hose routing and adaptable hose connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If singulation modules are used in a robot cell according to the state of the art, then joining elements can be processed, but changing them in the event of a malfunction is time-consuming and reduces system availability

Engineering Contradiction:
Improvesystem availabilityVSAvoidmodule replacement time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The singulation system is divided into modular singulation modules that can be independently replaced. Each module contains specific functional components (storage container, orientation device, conveying device) that can be quickly swapped out without affecting the entire system, enabling rapid replacement during malfunctions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The device is mounted on the assembly robot in a floating manner, allowing dynamic positioning and easy removal of modules. The base plate and mounting structure are designed to accommodate quick changes, transforming a static installation into a dynamically replaceable configuration.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the device is mounted on the assembly robot in a floating manner, then quick module replacement is enabled, but precise positioning and stability must be maintained

Engineering Contradiction:
Improvemodule replacement easeVSAvoiddevice positioning stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The mounting system is segmented into a base plate attached to the robot and a separate device portion that can be quickly connected and disconnected. This segmentation allows easy replacement while maintaining stable operation during use through precise connection interfaces.

Inventive Principle:
Principle #1Segmentation

3Productivity

If feed hoses are used for transporting joining elements, then elements can be delivered to the joining tool, but the transport distance is limited to less than 20 meters and compressed air energy is consumed

Engineering Contradiction:
Improveelement delivery capabilityVSAvoidcompressed air energy consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent utilizes pneumatic systems through compressed air to propel joining elements through feed hoses to the joining tool. The compressed air is supplied at different points depending on the hose connection side, enabling flexible and efficient element transport.

Inventive Principle:
Principle #29Pneumatics and hydraulics

4Adaptability or versatility

If adapters are provided for different hose connections, then flexibility in mounting is improved, but device complexity increases

Engineering Contradiction:
Improvehose connection flexibilityVSAvoidadapter system complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The device incorporates universal adapters that can accommodate different hose connection types and configurations. These adapters provide multi-functionality, allowing the same device to work with various hose arrangements (left or right side connections, different angles) without requiring multiple specialized components.

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

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables rapid module replacement, reduces feed hose length and compressed air usage, enhances system availability, and allows for flexible mounting and operation with shorter feed hoses, improving efficiency and reducing maintenance costs.

Implementation Method 1

The joining elements are conveyed by means of compressed air through a feed hose to a joining tool of the joining robot

Methodology Applied
Scientific EffectCompressed air: Pressure Gradient

Data Source

PatentEP3587027B1Compact separator
Publication Date: 2023.03.15 AUDI AG
  • EP3587027B1 patent drawingFigure 1~2
  • EP3587027B1 patent drawingFigure 3

AI summary

The invention relates to a compact device (10) arranged on a joining robot for storing and singulating joining elements and a method for operating the device.