Distance Compensating Element for Reground Cutting Insert Positioning
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Solution Overview
Problem
Reground cutting inserts in machining tools face geometry changes during regrinding, making reliable positioning in the tool holder challenging, leading to inefficiencies and increased costs.
Innovation Solution
A distance compensating element is positioned between the reground cutting insert and the tool holder, compensating for material removal during regrinding operations, ensuring correct positioning and extending the life of the cutting inserts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If cutting inserts are reground to extend their service life, then cost savings are achieved, but the geometry of the cutting insert changes making reliable positioning in the tool holder difficult
Solution Approach 1:
A positioning element is introduced as an intermediary component between the reground cutting insert and the tool holder. This positioning element compensates for the geometric changes caused by regrinding, ensuring that the cutting insert is correctly positioned in the tool holder despite the material removal. The positioning element acts as a mediator that adapts to the altered geometry of the reground insert while maintaining the required positioning precision.
2Manufacturing precision
If new cutting inserts are purchased instead of reground inserts, then positioning reliability is maintained, but costs increase and environmental impact worsens
Solution Approach 1:
The invention enables the recovery and continued use of cutting inserts after their initial service life. Instead of discarding reground inserts due to positioning issues, the positioning element allows them to be recovered and reused effectively. This extends the lifecycle of cutting inserts, reducing waste and the need to manufacture new inserts, thereby addressing both positioning reliability and environmental concerns.
3Ease of manufacture
If multiple regrinding operations are performed on cutting inserts, then cost effectiveness increases, but the amount of material removal accum making positioning increasingly difficult
Solution Approach 1:
The positioning element is designed in advance to account for the cumulative material removal from multiple regrinding operations. By preparing the positioning element with the appropriate compensation for expected material loss, the system maintains positioning accuracy throughout the insert's extended lifecycle, enabling multiple regrinding operations while preserving cost effectiveness.
Data Source
AI summary
The invention relates to a distance compensating element for positioning reground cutting inserts in a cutting tool and to a cutting tool comprising such a distance compensating element. The cutting tool is provided with a cutting insert (16) and a tool holder (12), and the cutting insert (16) is releasably secured to the tool holder (12) in a cutting insert receiving area (14) by means of a clamping element (17) wherein the cutting insert receiving area (14) has a support surface (23) which substantially corresponds to the base shape of the cutting insert (16) and comprises at least one wall section (24) that extends vertically relative to the support surface (23) and is designed to align the cutting insert (16) in the cutting insert receiving area (14), and a blade (18, 19) of the cutting insert (16) protrudes freely. A distance compensating element (25) is arranged between the cutting insert (16) and the cutting insert receiving area (14) in order to position a reground cutting insert (16) in the cutting insert receiving area (14) in the correct position, said compensating element compensating for a removal of material when the cutting insert (16) is reground.