Inner Toothing Deburring With Alternating Workpiece Rotation
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Solution Overview
Problem
Hob peeling processes often result in burrs on internally toothed workpieces that require subsequent deburring, which is inefficient and may require additional mechanical machining steps.
Innovation Solution
A deburring method using a non-rotating deburring tool with two diametrically opposed cutting plates that rotate the workpiece in alternating directions to efficiently remove burrs from the inner toothing, eliminating the need for further mechanical machining.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional deburring methods are used after hob peeling, then burrs can be removed, but additional machining steps are required which reduces productivity
Solution Approach 1:
The patent combines the hob peeling process and deburring process into a single integrated operation. The hob peeling tool is designed with deburring capabilities, allowing burrs to be removed during the same machining step that creates the toothing. This eliminates the need for separate deburring machinery and operations, directly resolving the contradiction by reducing both the number of machining steps and overall process time.
Solution Approach 2:
The hob peeling tool is designed to perform multiple functions: it both creates the internal toothing and removes burrs from the tooth flanks. This multi-functional tool design allows a single device to accomplish what previously required separate specialized machines, thereby improving productivity without adding device complexity.
2Manufacturing precision
If multiple machining steps are used for deburring, then thorough burr removal is achieved, but manufacturing time increases
Solution Approach 1:
The deburring action is performed preliminarily during the hob peeling process itself, before the workpiece leaves the machining center. By addressing burr removal at the moment of toothing creation, the patent eliminates the need for subsequent separate deburring operations, thereby maintaining high manufacturing precision while minimizing time loss.
Solution Approach 2:
The patent merges the primary machining operation (hob peeling) with the secondary finishing operation (deburring) into one continuous process. This combination ensures that burrs are removed thoroughly in the same time frame that the toothing is created, eliminating the time penalty associated with multiple sequential machining steps.
3Ease of manufacture
If conventional deburring devices are employed, then burrs can be removed, but the process requires additional equipment which increases device complexity
Solution Approach 1:
The hob peeling tool is designed as a universal device that performs both toothing creation and deburring functions. This eliminates the need for separate dedicated deburring machines or attachments, simplifying the manufacturing process by reducing the number of different equipment types required in the production line.
Solution Approach 2:
The patent combines the functions of the hob peeling machine and deburring device into a single integrated system. By merging these operations into one machine tool, the patent reduces equipment complexity and simplifies the manufacturing process, allowing a single piece of equipment to accomplish what previously required multiple specialized machines.
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 method effectively deburrs both tooth flanks of the inner toothing in a single operation, reducing the need for additional machining steps and enhancing the efficiency and rationality of the process compared to conventional methods.
Implementation Method 1
tooth flanks of the inner toothing are deburred with the deburring tool which does not rotate during this process, by means of the first cutting plate
Data Source
AI summary
A method for deburring an internally toothed workpiece includes providing a workpiece and a deburring tool. The workpiece has an inner toothing produced by hob peeling, with first and second tooth flanks. The deburring tool has a first cutting plate and a second cutting plate, diametrically opposed to the first cutting plate. The method includes rotating the workpiece in a first rotating direction and deburring the first tooth flanks with the first cutting plate while the deburring tool is not rotating. The method also includes shifting the deburring tool relative to the workpiece such that the first cutting plate and the second cutting plate do not contact the workpiece, rotating the workpiece in a second rotating direction, opposite the first rotating direction, further shifting the deburring tool relative to the workpiece, and deburring the second tooth flanks with the second cutting plate while the deburring tool is not rotating.