Slotting Tool Body Flexibility Recess for Small-Diameter Insert Clamping
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Solution Overview
Problem
Rotary slot cutting tools with small diameters face reduced flexibility due to sequential insertion of cutting inserts, making it difficult for resilient clamping members to displace sufficiently and insert the last cutting insert.
Innovation Solution
The slotting tool body features a disc-like cutter portion with angularly spaced clamping portions, a resilient clamping member, and a flexibility recess that extends to each insert receiving slot, allowing for increased flexibility and successful insertion of all cutting inserts, even in small diameter tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If cutting inserts are sequentially inserted into insert receiving slots in small diameter tools, then the tool can accommodate multiple cutting inserts, but the flexibility of the cutter portion decreases making it difficult to insert the last cutting insert
Solution Approach 1:
The cutter portion is divided into multiple independent clamping portions, each with its own insert receiving slot and resilient clamping member. This segmentation allows each slot to be filled independently without requiring the entire cutter portion to be sufficiently flexible, resolving the contradiction between accommodating multiple inserts and maintaining insertion flexibility.
Solution Approach 2:
Each clamping portion is designed with local flexibility through the resilient clamping member and lower jaw member configuration. This local quality enables sufficient displacement for inserting cutting inserts into each individual slot while maintaining overall structural integrity of the small diameter tool.
2Strength
If the cutter portion is made rigid to maintain structural integrity, then the tool strength is improved, but the resilient clamping members cannot displace sufficiently to insert the last cutting insert
Solution Approach 1:
By dividing the cutter portion into multiple independent clamping portions, each with its own resilient clamping mechanism, the design allows localized flexibility at each insertion point while maintaining overall structural rigidity. This segmentation resolves the contradiction between global strength and local flexibility.
Solution Approach 2:
The resilient clamping members and lower jaw members are designed to be dynamically flexible during the insertion process, allowing sufficient displacement when needed. After insertion, the system returns to a rigid locked state, providing the necessary structural integrity. This dynamic behavior resolves the contradiction between rigidity and flexibility.
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
The design ensures that all cutting inserts can be securely inserted and clamped, maintaining a firm grip on the cutting insert, particularly in small diameter tools where flexibility is crucial for successful insertion and clamping.
Implementation Method 1
a resilient clamping member configured to resiliently retain a cutting insert in the insert receiving slot
Data Source
AI summary
A slotting tool body includes a disc-like cutter portion including opposing forward and rearward cutter portion side surfaces and a cutter portion peripheral surface extending therebetween and a shank portion projecting rearwardly from the rearward cutter portion side surface. The cutter portion includes a number N of angularly spaced apart clamping portions, each having a peripherally disposed insert receiving slot. The cutter portion further includes a flexibility recess recessed in the forward cutter portion side surface and extending to each of the insert receiving slots. A cutting insert is releasably and resiliently clamped in each insert receiving slot to form a rotary slot cutting tool.