Die Holder Adapter for Automatic Clamp Bow Changeover

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Solution Overview

Problem

Existing joining tools require time-consuming adaptations for different processes due to the need to manually replace dies on clamp bows, limiting variability and efficiency in use.

Innovation Solution

An adapter element with a mounting mechanism that allows for automatic attachment and release from a tool clamp's clamp bow, enabling quick die changes and extended service cycles by using standard connecting mechanisms like threads and locating fits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual replacement of dies on clamp bow is used, then tool structure remains simple, but process adaptability decreases and cycle time increases

Engineering Contradiction:
Improveprocess adaptabilityVSAvoidcycle time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The die system is segmented into modular components: die holder, adapter element, and clamp bow with connecting mechanisms. This segmentation allows independent replacement of the adapter element with different adapters for different joining processes, enabling quick process changes without manual die replacement and reducing cycle time while maintaining simple tool structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

An adapter element is introduced as an intermediary component between the clamp bow and the die holder. This adapter serves as a mediator that can be automatically exchanged via robotic systems, eliminating the need for manual die replacement while maintaining compatibility with existing clamp bows and standard die holders

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If manual die replacement is implemented, then device complexity remains low, but productivity decreases

Engineering Contradiction:
Improvejoining speedVSAvoidtool structure complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The adapter element design provides universality by maintaining compatibility with existing clamp bows featuring standard connecting mechanisms (threaded holes, locating pins) and standard die holders. This multi-functionality allows a single adapter interface to support multiple joining processes (riveting, clinching, embossing) without requiring complex custom tooling, thereby increasing productivity while keeping device complexity low

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

Solution Approach 2:

The tool system is enhanced with automatic adapter exchange capability through robotic systems that can autonomously replace adapter elements on the clamp bow. This self-service automation eliminates manual intervention, increases joining speed and productivity, while the standardized interface keeps the overall device complexity manageable

Inventive Principle:
Principle #25Self-service

3Loss of time

If automatic adapter exchange is implemented, then cycle time decreases, but manufacturing complexity increases

Engineering Contradiction:
Improvedie change timeVSAvoidmanufacturing complexity
Core Design Contradiction:
Loss of timeVSEase of manufacture

Solution Approach 1:

Multiple adapter elements for different joining processes are pre-loaded onto the clamp bow in advance. When process change is needed, the robotic system simply exchanges pre-prepared adapters rather than assembling new ones. This preliminary preparation reduces die change time significantly while keeping manufacturing complexity low, as the pre-loaded adapters use standard connecting mechanisms

Inventive Principle:
Principle #10Preliminary action

4Ease of manufacture

If standard connecting mechanisms are used, then adapter exchange cost decreases, but attachment reliability may be compromised

Engineering Contradiction:
Improveadapter exchange costVSAvoidattachment reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The adapter element design merges multiple attachment functions into a single integrated component: threaded connections for secure mounting, locating pins for precise positioning, and clamping elements for firm engagement. This combination of standard connecting mechanisms maintains low manufacturing cost while ensuring high attachment reliability through redundant connection methods

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12076778B2Adapter element for attaching a die holder to a tool clamp
Publication Date: 2024.09.03 TOX PRESSOTECHNIK GMBH & CO KG
  • US12076778B2 patent drawing
  • US12076778B2 patent drawing
  • US12076778B2 patent drawing

AI summary

An adapter element for attaching a die holder to a tool clamp is provided. The adapter element includes a mounting element for mounting the die holder. The adapter element has mounting mechanisms that connect the adapter element and a connecting mechanism of a clamp bow of the tool clamp, whereby automatic attachment and/or automatic release between the adapter element and the clamp bow is enabled.