Adjustable Punch Body Assembly for In-Field Wear Compensation
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Solution Overview
Problem
Punching tools wear down over time, necessitating re-machining or replacement, which is inconvenient and inefficient.
Innovation Solution
An adjustable punch body assembly with a driver that can be axially positioned and locked relative to the punch body, allowing for easy in-field length adjustment through threaded engagement and a locking mechanism, enabling the tool to be lengthened as it wears down without needing replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the punching tool is used continuously, then productivity is improved, but the tool wears down requiring re-machining or replacement
Solution Approach 1:
The driver is made adjustable along the longitudinal axis of the punch body, allowing dynamic repositioning of the driver's axial position. This enables the tool to be lengthened as the punch body wears down, extending tool life without replacement. The adjustable engagement mechanism allows the driver to be repositioned and locked at different axial positions to compensate for wear.
2Reliability
If re-machining or replacement is performed when the tool wears down, then reliability is maintained, but loss of time and productivity occur
Solution Approach 1:
The adjustable driver position allows quick field adjustment to compensate for wear, avoiding complete tool replacement or re-machining operations that require significant downtime. The driver can be repositioned along the longitudinal axis and locked in place, maintaining tool functionality with minimal interruption to production.
3Device complexity
If the driver position is fixed, then device complexity is reduced, but adaptability to wear is lost
Solution Approach 1:
The driver is designed with adjustable engagement to the punch body, allowing the axial position of the driver to be modified. This provides adaptability to compensate for wear while maintaining relatively simple construction through threaded engagement and locking mechanisms.
Solution Approach 2:
The driver is separated into distinct components including a base portion that engages the punch body and a stem portion that engages the punch head. This segmentation allows independent adjustment of the driver's axial position while maintaining the overall structural integrity of the tool.
4Duration of action of stationary object
If the tool length is extended to compensate for wear, then duration of action is improved, but manufacturing precision may be affected
Solution Approach 1:
The adjustable driver position allows precise positioning along the longitudinal axis to compensate for wear while maintaining alignment accuracy. The locking mechanism secures the driver at the adjusted position, ensuring consistent manufacturing precision throughout the extended tool life.
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 on-site adjustment of the punching tool's length, extending its useful life by allowing re-surfacing of the punch body while maintaining the ejector member's alignment with the punching machine, thus avoiding premature tool replacement.
Implementation Method 1
a spring may be disposed between the one end of the ejector member and the base of the driver
Implementation Method 2
the first adjustable engagement may comprise external threads on the driver engagement end of the punch body and the second adjustable engagement may comprise internal threads in the base of the driver that engage the external threads
Data Source
AI summary
A method of adjusting punch body assembly, that has a punch body coupled to a driver, by moving the driver with respect to the punch body until a select axial position is reached along the longitudinal axis of the punch body and locking the driver at the select axial position.