Skiving Tool Measuring Geometry for Accurate Center Distance Setup
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Solution Overview
Problem
Current methods for measuring the dimensions of skiving wheels during the skiving process are complex and inadequate, leading to production rejects due to insufficient information about the tool's dimensions, particularly the axial distance and tool height, which affects the quality of workpiece gears.
Innovation Solution
A measuring geometry that simulates the meshing engagement between the skiving wheel and the workpiece, allowing for the determination of the minimum center distance and tool height, enabling precise machine settings by mapping the tooth flanks and using a positioning element to contact the cutting edge of the tool, thereby providing essential measurement information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional measurement methods (outer diameter and height only) are used for skiving wheels, then the measurement process is simple, but the manufacturing precision of workpiece gears deteriorates due to insufficient dimensional information
Solution Approach 1:
The measuring geometry creates a precise copy of the workpiece tooth flanks that will be produced by the skiving wheel. By measuring the skiving wheel against this copy in meshing engagement, the invention obtains accurate dimensional information (minimum center distance, tool height) without requiring complex direct measurements of the skiving wheel itself, thus improving manufacturing precision while keeping the measurement process manageable.
Solution Approach 2:
The measuring geometry acts as an intermediary object between the skiving wheel and the measurement system. Instead of directly measuring complex skiving wheel dimensions, the invention uses this intermediary measuring geometry that engages with the skiving wheel in a controlled manner, translating complex tool dimensions into measurable parameters like minimum center distance and tool height.
2Productivity
If the skiving wheel dimensions are not precisely determined before production, then the production setup is faster, but production rejects increase due to insufficient dimensional information
Solution Approach 1:
The invention performs the critical dimensional measurement of the skiving wheel before the actual production run begins. By measuring the minimum center distance and tool height in advance using the measuring geometry, the setup is completed quickly without requiring extensive trial production, while ensuring reliable workpiece quality from the first piece through the entire production series.
3Measurement precision
If only outer diameter and height are specified for the skiving wheel, then the tool manufacturing is simpler, but the measurement precision of critical dimensions deteriorates
Solution Approach 1:
The invention applies local quality by focusing measurement precision only on the critical dimensions (minimum center distance, tool height) that affect workpiece quality, rather than requiring all skiving wheel dimensions to be manufactured with high precision. The measuring geometry is designed with precise local features (tooth flanks, positioning elements) that enable accurate measurement of these specific parameters while allowing the skiving wheel itself to be manufactured with standard tolerances.
Data Source
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AI summary
The invention relates to a measuring geometry for a toothed tool, in particular for hob peeling tool teeth, said geometry being used to determine at least one measurement variable which can be used for a process which is carried out using said tool, in particular for a peeling process, in a phase in which the profile of the tool teeth which is to be produced is formed by the tool teeth. The invention is characterized by a toothed region with which, when determining the measurement, the tool toothing is in a toothed engagement which corresponds to a toothed engagement between the tool and workpiece, in the profile-forming phase. The invention also relates to a measuring device and to a measuring method.