Chamfer Tool Touch-Off Calibration Using a Control Diameter
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Solution Overview
Problem
Current methods for calibrating chamfering tools with beveled or conical cutting edges are inefficient and prone to errors, leading to increased time, material waste, and expense in both manual and CNC machining processes.
Innovation Solution
A calibration system featuring an interchangeable touch-off device with a control diameter aperture and a spring mechanism, allowing for precise calibration of chamfering tools by centering and zeroing the tool height, enabling accurate toolpath establishment and depth settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional touch-off techniques (paper, electronic probes) are used for chamfering tools, then calibration can be performed, but the process is tedious, time-consuming, and prone to errors
Solution Approach 1:
A conical reference surface acts as an intermediary between the chamfering tool and the measurement system. The reference surface provides a precise geometric standard that the tool tip contacts, enabling accurate determination of tool orientation and position without complex electronic probes or manual measurement techniques
Solution Approach 2:
The patent replaces complex electronic probe systems and manual measurement methods with a simple mechanical reference surface and visual alignment system. The conical reference surface with its precise geometry provides the necessary measurement function through mechanical contact and optical alignment rather than electronic sensing
2Reliability
If traditional calibration methods are used for chamfering tools, then calibration can be attempted, but extensive calculations and test cuts are required, leading to material waste and additional expense
Solution Approach 1:
The conical reference surface is prepared in advance with precise geometry and known dimensions. This pre-prepared reference eliminates the need for test cuts and iterative calculations, as the reference surface itself provides the necessary geometric information for accurate tool calibration on the first attempt
Solution Approach 2:
The reference surface creates a precise geometric copy or representation of the ideal chamfering geometry. By measuring against this physical copy of the desired geometry rather than performing trial cuts, the system achieves high reliability without material waste
3Adaptability or versatility
If simple touch-off devices are used, then the device complexity is low, but they are only suitable for flat-ended cutting tools and cannot calibrate chamfering tools with beveled edges
Solution Approach 1:
The reference surface has different local geometries - a conical section for chamfering tool calibration and potentially other sections for different tool types. Each local region of the reference surface is optimized for calibrating specific tool geometries, providing versatility without requiring multiple separate devices
Solution Approach 2:
The calibration device incorporates multiple reference surfaces with different geometries (conical, cylindrical, flat) that can calibrate various types of cutting tools including end mills, chamfering tools, and face mills. This multi-functional reference surface eliminates the need for separate calibration devices for different tool types
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
Facilitates quick and accurate calibration of chamfering tools, reducing errors and improving efficiency in both manual and CNC milling operations, particularly in CNC applications where precision is critical.
Implementation Method 1
the proximal end including a spring attached thereto
Data Source
AI summary
A touch-off device includes a control diameter for calibrating non-cylindrical chamfering tools.