Reaming Tool Cylindrical Insert Seat Radial Positioning
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Solution Overview
Problem
Reaming tools face high handling, cleaning, and logistics costs due to the need for individually adjusted cutting inserts to maintain precise tolerances, which is expensive and time-consuming.
Innovation Solution
A cylindrical insert seat casing with a convexly curved surface allows for radial positioning of cutting inserts without individual association, using a screw connection for precise positioning and supporting cutting inserts with an annular shoulder and clamping pieces to maintain low tolerances and extend service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If individually adjusted cutting inserts are used to maintain precise tolerances, then manufacturing precision is improved, but device complexity and production cost increase
Solution Approach 1:
The insert seat is designed with a cylindrical contact surface that can accommodate multiple different cutting inserts (different diameters, lengths, cutting edge configurations) without requiring individual adjustment mechanisms. The universal cylindrical interface allows any insert with a matching contact surface to be positioned precisely, eliminating the need for complex individual adjustment systems while maintaining manufacturing precision.
Solution Approach 2:
The cutting inserts are equipped with a geometrically defined contact surface that automatically ensures precise positioning when brought into contact with the cylindrical insert seat surface. The precision is achieved through the geometric definition of the contact surfaces themselves rather than through active adjustment mechanisms, allowing the inserts to self-position with the required accuracy.
2Manufacturing precision
If individually adjusted cutting inserts are used to maintain precise tolerances, then manufacturing precision is improved, but handling and logistics costs increase
Solution Approach 1:
The universal cylindrical insert seat design allows a single seat structure to accommodate multiple different cutting inserts. This standardization reduces the variety of unique components that need to be managed in logistics, simplifies handling procedures, and reduces the complexity of inventory management while still allowing precision machining with different insert types.
Solution Approach 2:
All cutting inserts are designed with a homogeneous cylindrical contact surface geometry that interfaces with the insert seat in the same manner. This uniformity simplifies handling, storage, and replacement procedures, reducing training requirements and operational complexity while maintaining the ability to achieve precise tolerances with any insert in the standardized system.
3Adaptability or versatility
If exchangeable cutting inserts are used instead of firmly connected cutting bodies, then adaptability is improved, but positioning precision deteriorates
Solution Approach 1:
The cutting inserts have geometrically defined contact surfaces that automatically ensure precise positioning when brought into contact with the cylindrical insert seat surface. The precision is achieved through the geometric definition of the contact surfaces themselves rather than through active adjustment mechanisms, allowing the inserts to self-position with the required accuracy upon insertion.
Solution Approach 2:
The invention replaces complex mechanical adjustment mechanisms with a geometrically defined contact system. The precise positioning is achieved through the geometry of the cylindrical contact surfaces rather than through mechanical adjustment devices, allowing exchangeable inserts to maintain positioning precision without complex mechanical systems.
Data Source
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AI summary
The invention relates to a machine tool comprising a tool holder (14) which rotates relative to a workpiece to be machined and has a tool axis (12), and a plurality of cutting inserts (18) that are removably attached to the tool holder (14), the active cutting edges (20) of said cutting inserts having a common cutting circle which is coaxial to the tool axis (12). According to the invention, the tool holder (14) has a cylinder-type insert seat shell (24) for radially positioning the cutting inserts (18), which rotates about the tool axis (12). The cutting inserts (18) have at least one contact surface (26) that can be brought into contact with the insert seat shell (24).