Modular Milling Tool Seat for Replaceable Insert Conversion
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Solution Overview
Problem
Milling tools face high costs and difficulty in converting between different types of replaceable cutting inserts, especially when one breaks, due to damage to adjacent areas and the need for complex reconfiguration.
Innovation Solution
The milling tool features separately provided support bodies for each side and underside of the cutting insert, each reversibly attached via distinct fastening elements, allowing for easy replacement and conversion to different inserts using a single screwing tool, and a clamping wedge for robust attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cutting insert breaks during operation, then the adjacent areas of the insert seat and/or cassette are damaged, but this leads to high replacement costs and complex reconfiguration
Solution Approach 1:
The insert seat is divided into multiple independently replaceable support bodies (first support body, second support body, third support body) that can be separately replaced. When a cutting insert breaks, only the specific damaged support body needs to be replaced rather than the entire insert seat or cassette, thereby reducing replacement costs and simplifying the replacement process.
2Device complexity
If the cutting insert is attached directly to a seat on the milling tool base body, then the structure is simple, but conversion to different insert types is difficult and costly
Solution Approach 1:
The insert seat is segmented into multiple independently replaceable support bodies. Different configurations of support bodies can be used to accommodate different types of cutting inserts. This allows easy conversion between insert types by simply replacing the appropriate support bodies while maintaining a relatively simple overall structure.
Solution Approach 2:
The support bodies are designed to be universally applicable for different types of cutting inserts. By replacing combinations of support bodies, the same basic seat structure can accommodate various insert shapes and sizes, providing multi-functionality without requiring completely different seat designs for each insert type.
3Strength
If multiple fastening elements are used for each support body, then the cutting insert attachment is robust, but the number of different screwing tools required increases
Solution Approach 1:
All fastening elements (first fastening element, second fastening element, third fastening element) are designed with engagement areas that are compatible with the same screwing tool. This universal interface allows a single screwing tool to tighten all fastening elements, maintaining robust attachment while eliminating the need for multiple different screwing tools.
Data Source
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AI summary
A milling tool (100) is provided with a milling tool body (10) which has a first end (11) that has an interface for connection with a machine-side tool holder and a free second end (12) that has at least one seat (13) for receiving an interchangeable cutting insert (1). The following are arranged on the seat (13): a first support body (21) for supporting a first side surface of the cutting insert (1), which is reversibly attached to the milling tool body (10) via a first fastening element (21a), a second support body (22) for supporting a second side surface of the cutting insert (1), which is reversibly attached to the milling tool body (10) via a second fastening element (22a), and a third support body (23) for supporting a bottom surface of the cutting insert (1), which is reversibly attached to the milling tool body (10) via a third fastening element (23a).