Adjustable Front Stop for Chuck Collet Positioning
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Solution Overview
Problem
Current methods for measuring stock segments during machining and cutting are slow, cumbersome, and prone to inaccuracies due to the collet pulling the stock back during closure, which affects the length of the piece being cut.
Innovation Solution
An adjustable stop tool with a rigid elongate body, a stop element, and a locking feature that allows for precise positioning and locking of the stock segment relative to the collet, preventing the stock from being pulled back during closure, and enabling quick and accurate measurement and cutting operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a ruler is used to measure each piece of stock, then measurement can be performed, but the process is slow and cumbersome
Solution Approach 1:
The stop is pre-positioned at the desired measurement distance from the collet before the stock is inserted. This preliminary positioning eliminates the need for individual measurement of each stock piece, allowing multiple pieces to be quickly cut to the same length by simply inserting them against the pre-set stop.
2Reliability
If the collet is closed on the stock, then the stock is secured for cutting, but the collet pulls the stock back slightly, changing the length of the piece
Solution Approach 1:
The stop is positioned to account for and counteract the expected backward pull of the stock when the collet closes. By pre-positioning the stop at a distance that compensates for this pull, the final position of the stock after collet closure achieves the desired cutting length with high precision.
3Manufacturing precision
If an adjustable stop tool is used to prevent stock from being pulled back, then positioning accuracy is improved, but the device complexity increases
Solution Approach 1:
The stop tool is divided into separable components: a collet, a stop element, and a connection structure. This segmentation allows each component to perform its specific function independently while keeping the overall structure simple and manageable, reducing manufacturing complexity while maintaining positioning precision.
Solution Approach 2:
The stop element is designed to be adjustable and repositionable along the collet body, allowing dynamic adaptation to different cutting lengths. This dynamic capability provides manufacturing precision for various dimensions without requiring multiple fixed stops, simplifying the overall device structure.
Data Source
AI summary
An adjustable stop tool has a rigid elongate body having a tool end, and a stop element slidably positioned on the rigid elongate body. The tool enables a method for positioning a segment of stock for machining and cutting, wherein the stop element is first locked on the rigid elongate body such that the stop element is separated from the tool end by a distance. A segment of the stock is then pulled out of the collet until the stock end is separated from the collet by more than the distance. The adjustable stop tool is then positioned against the stock and pushed towards the collet until the tool end abuts the collet.