Chamfering Tool Holding Arm Layout for Access Without Interference
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Solution Overview
Problem
Existing chamfering tools are complex in structure, making them costly to produce and maintain, and they often interfere with workpieces due to protruding holding arms, which complicates inspection and assembly.
Innovation Solution
A chamfering tool with a rotatable tool body and a radially displaceable chamfer cutting element, featuring a holding arm that is elastically flexible and positioned within a groove on the tool body, allowing for easy access and modification without removing the tool from a machine, and enabling the tool to produce chamfers and drill holes in a single step.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the holding arm is disposed inside the tool body, then the structure is compact and the holding arm does not project radially, but it becomes inaccessible for inspection, modification, assembly or disassembly without removing the tool from the machine
Solution Approach 1:
The tool body is segmented by providing a groove that is open on the outer periphery, dividing the internal space into accessible and non-accessible zones. This allows the holding arm to be positioned inside the tool body for compactness while maintaining accessibility through the open groove for maintenance operations.
Solution Approach 2:
The groove acts as an intermediary structure that provides access to the holding arm without requiring complete disassembly or removal of the tool from the machine. The open groove serves as a passage for inspection, modification, assembly or disassembly of the holding arm while maintaining the overall compact structure.
2Ease of operation
If the holding arm projects radially relative to the tool body, then it is easily accessible for maintenance, but it causes undesirable interactions with workpieces during machining
Solution Approach 1:
The holding arm is extracted from the conventional positioned inside the tool body and repositioned within a groove that is open on the outer periphery. This extraction allows the holding arm to remain non-protruding (avoiding workpiece interference) while becoming accessible for maintenance through the open groove.
3Ease of operation
If the groove is continuous in radial direction, then the holding arm is fully accessible from outside, but the structural integrity and support are reduced
Solution Approach 1:
Instead of making the groove continuous in the radial direction (excessive action), the groove is designed to be open only on the outer periphery, providing partial accessibility. This partial action is sufficient for maintenance purposes while preserving the structural integrity of the tool body.
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
The solution simplifies the tool's structure, reduces production costs, and prevents undesirable interactions with workpieces, ensuring robust, reliable, and cost-effective operation while allowing for quick replacement and precise chamfer production.
Implementation Method 1
the holding arm is elastically flexible in radial direction
Data Source
AI summary
The invention relates to a cutting tool (10), in particular a chamfering tool. Said tool comprises a tool body (14) which is rotatable about a tool axis (12) and a chamfer cutting element (24) which is mounted on the tool body (14) such that it is radially displaceable by means of a guide (32). The chamfer cutting element (24) is held in radial direction on the tool body (14) by means of a holding arm (42). The holding arm (42) is elastically flexible in radial direction and is disposed at least partly inside a substantially axially extending groove (56) provided on an outer periphery of the tool body (14). Also presented is an indexable insert (30) for such a cutting tool (10).