Compact Stock Guide Assembly for Precise Die Alignment

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Solution Overview

Problem

Current metal forming dies are labor-intensive and costly to design, manufacture, and modify due to custom-designed components and precise machining requirements, leading to high production and maintenance expenses.

Innovation Solution

A compact stock guide assembly with a cylindrical stock guide body having distinct width variations and a centrally located aperture, coupled to a die member using a fastener, allowing for efficient alignment and installation, reducing the need for precise machining and custom design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If custom-designed and handcrafted components are used in metal forming dies, then the precision and performance of the die can be optimized for specific parts, but the labor intensity, manufacturing time, and cost increase substantially

Engineering Contradiction:
Improvedie precisionVSAvoidmanufacturing ease
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The die set is divided into modular components including interchangeable punches, dies, stock guides, and other accessories that can be independently manufactured and assembled. This segmentation allows each component to be optimized for specific functions while enabling rapid reconfiguration without requiring complete custom machining of the entire die set.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Universal components such as stock guides with standardized mounting features and interchangeable tooling elements are designed to perform multiple functions across different die configurations. These universal parts reduce the need for custom-designed components while maintaining the precision required for specific part formation.

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

2Manufacturing precision

If carefully machined precision holes and recesses are provided in the die set for mounting components, then the alignment and performance of the die can be ensured, but the labor intensity and lead time increase substantially

Engineering Contradiction:
Improvealignment precisionVSAvoidlead time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

Precision mounting features such as holes, recesses, and locating surfaces are pre-machined into modular die components during manufacturing. This preliminary action allows for rapid assembly and reconfiguration of die sets without requiring time-consuming on-site machining operations, thereby reducing lead time while maintaining alignment precision.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Standardized mounting intermediaries such as precision-machined plates, adapters, and locating fixtures are used to facilitate the connection between components. These intermediaries provide pre-formed precision features that simplify assembly operations and reduce the need for custom machining while ensuring proper alignment.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If individual components are custom designed and installed in the die set, then the performance can be optimized for specific applications, but the expense for design, manufacture, and repair or modification increases very high

Engineering Contradiction:
ImproveperformanceVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The die set is designed with dynamic, interchangeable components that can be easily replaced or modified based on production requirements. This dynamic approach allows performance optimization for different applications without requiring complete custom design and manufacturing of entire die sets, thereby reducing costs while maintaining reliability.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Wear-prone or application-specific components such as punches, dies, and stock guides are designed as replaceable elements that can be discarded when worn or obsolete and replaced with new or reconditioned components. This approach reduces the cost of repair and modification compared to custom manufacturing entire die sets, while maintaining performance through periodic replacement of critical elements.

Inventive Principle:
Principle #34Discarding and recovering

Data Source

PatentUS11376648B2Compact stock guide assembly
Publication Date: 2022.07.05 STANDARD LIFTERS INC
  • US11376648B2 patent drawing
  • US11376648B2 patent drawing
  • US11376648B2 patent drawing

AI summary

A compact stock guide assembly and method for metal forming dies includes a stock guide that includes a fastener that secures the stock guide to the die through a central aperture in the stock guide. The stock guide has a locating boss that can be received in a pocket in the die that has been bored and tapped to receive the fastener.