Adjustable Punch Head Assembly for Tool Wear Compensation
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Solution Overview
Problem
Punching tools wear down over time, necessitating either re-machining or replacement, which is inconvenient and inefficient.
Innovation Solution
An adjustable punch head assembly with a ball bearing and pin member mechanism that allows axial movement and locking of the punch head with respect to a driver, enabling in-field adjustment of the tool's length without replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If punching tools are used continuously, then productivity is improved, but the tool wears down requiring re-machining or replacement
Solution Approach 1:
The punch head assembly incorporates an adjustable length mechanism that allows the punch head to be repositioned axially along the driver. This dynamic adjustment capability enables the tool to compensate for wear by extending the punch head's operational life through multiple position settings, eliminating the need for re-machining or replacement and maintaining continuous productivity.
2Ease of repair
If the punch head is made adjustable to extend tool life, then device complexity increases, but ease of repair and maintenance improves
Solution Approach 1:
The adjustment mechanism is segmented into discrete functional components: a ball bearing for positioning, a pin member for locking, and a spring for retention. This segmentation allows each component to perform its specific function independently while maintaining overall simplicity. The modular design enables easy in-field adjustment without requiring complex assembly or specialized tools, balancing increased functionality with ease of maintenance.
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 easy and precise adjustment of the punch head's position, extending the tool's lifespan and avoiding the need for frequent re-machining or replacement, thereby improving operational efficiency and reducing maintenance costs.
Implementation Method 1
A ball bearing is receivable in the first passageway... moves the ball bearing into and out of engagement with the outer ball engagement surface of the driver for adjusting an axial position of the punch head with respect to the driver
Data Source
AI summary
A punch head assembly that includes a punch head including a main body having opposite first and second ends, a longitudinal inner bore, a first passageway extending substantially radially from the inner bore, and a second passageway substantially traversing the first passageway. A ball bearing is received in the first passageway. A pin member is received in the second passageway. The pin member is rotationally movable between first and second positions. A driver is coupled to the punch head and includes a stem extending into the inner bore. The stem has an outer ball engagement surface. The punch head is axially movable with respect to the stem. Axial movement of the pin member in the second passageway moves the ball bearing into and out of engagement with the outer ball engagement surface for adjusting an axial position of the punch head with respect to the driver.