Hob Peeling Tooth Cutting With Integrated Deburring
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Solution Overview
Problem
Existing machining methods for producing toothing on workpieces face challenges in achieving high machining quality during the second machining operation, particularly in deburring, as they often require tool changes, repositioning, or clamping, which can lead to inefficiencies and potential deformation of tooth edges.
Innovation Solution
The method involves using the same movement axes for both the first and second engagement areas, allowing for coupled positioning without changing the workpiece's position or clamping, enabling deburring without affecting the tooth edges and allowing for continuous processing with tools like cutting wheels or deburring tools, which can be rotationally coupled for improved precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If tool changes and repositioning are performed between first and second machining operations, then different machining functions can be achieved, but machining efficiency decreases and workpiece position stability is compromised
Solution Approach 1:
The patent combines the first engagement area (for tooth generation) and the second engagement area (for deburring) into a single tool arrangement that remains mounted on the same tool spindle. This merging eliminates the need for tool changes and repositioning between operations, maintaining workpiece position stability while achieving both machining functions sequentially, thus resolving the contradiction between versatility and productivity
Solution Approach 2:
The tool arrangement is designed with multi-functionality, where a single tool assembly performs both tooth generation and deburring operations through its two different engagement areas. The tool can machine different surfaces (tooth flanks and end faces) without requiring separate tools, achieving versatility while maintaining continuous processing and high efficiency
2Adaptability or versatility
If the workpiece position or clamping is changed between machining operations, then different engagement areas can be accessed, but machining precision and time efficiency deteriorate
Solution Approach 1:
Both engagement areas are integrated into a single tool arrangement that processes different surfaces of the workpiece without requiring repositioning or re-clamping. The tool spindle maintains a constant position relative to the workpiece, ensuring machining precision while accessing both the tooth flanks and end faces through the tool's own geometric configuration
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
This approach enhances machining quality by enabling efficient deburring without altering the workpiece's position or requiring tool changes, ensuring precise removal of burrs without deforming the tooth edges, and allows for continuous processing, resulting in improved machining results and reduced operational complexity.
Implementation Method 1
material protrusions (i.e., primary burrs) created on this axial side by the gear tooth generation are removed by cutting (shearing)
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3c
AI summary
The invention relates to a method for machining a workpiece, in which, in particular using the hob peeling method, a toothing is created on the workpiece in a first machining operation, in which a toothed cutting wheel that rotates about its rotation axis and has cutting edges on its toothing on a first end side is coupled by way of a hob-type coupling to the workpiece rotating about its rotation axis, and a cutting movement of the cutting edges, which has a direction component axially parallel to the workpiece, stops towards an axial side of the workpiece toothing, wherein the cutting edges of the cutting wheel form a first engagement region that is positionable with respect to the workpiece by means of movement axes, and in which, in a second machining operation having a second engagement region, the workpiece is machined on that side of the workpiece toothing at which the movement stops, wherein the second engagement region is positionable with respect to the workpiece by means of the same movement axes as the first engagement region and in particular is coupled in terms of movement to the first engagement region.