Modular Guided Keeper Base for Faster Die Setup and Repair
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Solution Overview
Problem
Current metal forming dies are labor-intensive, expensive, and time-consuming to design, manufacture, and repair due to custom-designed components requiring precise machining and individual assembly, leading to high costs and long lead times.
Innovation Solution
A modular guided keeper assembly with a base, bushing, guide pin, and retainer ring system that simplifies die construction by allowing for interchangeable components and secure fastening, reducing the need for precise machining and custom fitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If custom-designed components are used for each die set, then the die can be precisely fitted for the particular part, but the design, manufacture and repair costs increase substantially
Solution Approach 1:
The die set is divided into modular components (keepers, guides, bushings, pins) that can be independently manufactured and assembled. This segmentation allows standardization of parts while maintaining precision fitting capabilities through standardized interfaces and tolerance specifications.
Solution Approach 2:
Standardized keepers and guides are designed to be universally applicable across multiple die sets and configurations. The keepers feature standardized mounting holes, shoulder dimensions, and retention mechanisms that allow them to serve multiple functions and be used in various die assemblies, reducing the need for custom-designed components.
2Manufacturing precision
If custom-designed components are individually installed in the die set, then the assembly can be precisely configured, but the labor intensity and lead time increase substantially
Solution Approach 1:
The die set components are segmented into standardized modules that can be pre-assembled and tested independently before final assembly. This modular approach allows parallel manufacturing of multiple components, reducing overall lead time while maintaining configuration precision through standardized interfaces.
Solution Approach 2:
Standardized keepers and guides are pre-manufactured with precise dimensions, mounting features, and retention mechanisms before being installed in the die set. This preliminary preparation of components with predetermined specifications reduces on-site assembly complexity and installation time while ensuring configuration precision.
3Manufacturing precision
If precise machining and custom fitting are performed on all components, then the die set can be precisely assembled, but the lead time and manufacturing costs increase
Solution Approach 1:
Standardized keepers and guides are designed with universal mounting features and dimensions that allow them to be used across multiple die sets without requiring custom machining for each application. This universality reduces manufacturing lead time by enabling batch production of standard components while maintaining assembly precision through standardized tolerance specifications.
Solution Approach 2:
The design transitions from custom-fit components requiring precise machining for each die set to standardized components with predetermined geometric parameters and tolerance ranges. This parameter standardization allows components to be manufactured with consistent precision levels suitable for assembly, eliminating the need for extensive custom fitting operations.
4Reliability
If individual custom components are used, then the die can be optimized for a particular part, but the repair and modification costs and time increase
Solution Approach 1:
The die set is segmented into replaceable standardized components (keepers, guides, bushings) that can be individually replaced during repair or modification. This segmentation allows specific worn or damaged parts to be replaced without redesigning or replacing the entire die set, reducing repair costs and time while maintaining the optimized configuration of other components.
Solution Approach 2:
Standardized keepers and guides can be used as replacement parts across different die sets, allowing inventory of standard components to be maintained for rapid repair. The universal design enables interchangeability of parts, reducing the need for custom-matched replacement components and lowering repair costs while maintaining the optimized performance characteristics of the die set.
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.