Modular Guided Keeper Base for Faster Metal Die Assembly
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Solution Overview
Problem
Current metal forming dies are labor-intensive and costly to design, manufacture, and repair due to the need for custom, individually crafted components and precise machining, which increases lead time and expense.
Innovation Solution
A modular guided keeper base with a cylindrical base having different diameters, a tapered retainer ring groove, bushings, guide pins, and mounting flange members that allow for various mounting options and integrated solid stops for guide pin retention, simplifying die construction and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If custom, individually crafted components are used in metal forming dies, then precision and accuracy are improved, but labor intensity and manufacturing costs increase
Solution Approach 1:
The keeper base is designed as a universal component that can accommodate multiple bushing configurations and mounting options. The standardized base with pre-configured features allows it to serve multiple functions across different die applications, eliminating the need for custom-crafted components for each specific application while maintaining precision requirements.
Solution Approach 2:
The die component system is segmented into standardized modules: keeper bases, bushings, guide pins, and mounting flanges. Each module is designed with standard dimensions and features that can be independently manufactured and assembled, reducing labor intensity while maintaining overall precision through standardized interfaces and fit tolerances.
2Manufacturing precision
If custom, individually crafted components are used in metal forming dies, then precision and accuracy are improved, but lead time increases
Solution Approach 1:
The keeper base is designed in advance with pre-configured features including bushing holes, mounting flange interfaces, and retention groove locations. This preliminary design and standardization of features eliminates the need for time-consuming custom machining and fitting operations during die assembly, significantly reducing lead time while maintaining precision through pre-planned feature locations.
Solution Approach 2:
The universal keeper base design allows the same component to be used across multiple die applications without requiring custom fabrication. This multi-functionality enables standard inventory components to be quickly deployed, reducing lead time while maintaining precision through consistent, standardized design features.
3Manufacturing precision
If custom, individually crafted components are used in metal forming dies, then precision and accuracy are improved, but manufacturing costs increase
Solution Approach 1:
The die system is segmented into standardized components that can be manufactured using efficient, high-volume processes. The keeper base, bushings, and guide pins are designed as separate, standardizable modules that can be produced through automated machining or even stamping processes, significantly reducing manufacturing costs compared to custom handcrafted assembly while maintaining precision through standardized tolerances.
Solution Approach 2:
The universal keeper base serves multiple applications and configurations, allowing a single component design to replace numerous custom-crafted variants. This universality enables economies of scale in manufacturing, reducing per-unit costs while maintaining precision through consistent design and standardized feature locations.
4Reliability
If complex machining and precision holes are required for mounting components, then component retention is improved, but device complexity increases
Solution Approach 1:
Multiple retention features are merged into the keeper base design: bushing holes for guide pin retention, flange features for mounting, and groove structures for snap-ring retention. These combined features provide reliable component retention through integrated design rather than requiring separate complex machining operations for each retention function, simplifying the overall device complexity.
Solution Approach 2:
The keeper base is designed as a multi-functional component that provides multiple retention mechanisms (bushing holes, flange mounting surfaces, snap-ring grooves) in a single standardized part. This universality allows reliable retention of various components through pre-configured features, eliminating the need for complex custom machining while maintaining reliability through consistent, proven design features.
Data Source
AI summary
A modular guided keeper base, guided keeper assembly, and related method includes a modular guided keeper base that mounts to a die member. The guided keeper base has an integrated stop for guide pin retention. The guided keeper base can also accommodate a variety of bushings within the base. The guided keeper base is attached to a die member using a mounting flange(s). Mounting fasteners pass through the fastener holes in the mounting flanges and are anchored in the die member to securely retain the guided keeper assembly in place. A retainer ring is mounted in an associated groove in the base over the heads of the mounting fasteners to prevent unintentional unfastening of the fasteners from the die member.