Rotary Slot Cutting Tool With Replaceable Resiliently Clamped Insert
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Rotary slot cutting tools with disc-like cutter portions are expensive to manufacture, and if one cutting edge is damaged, the entire slotting head needs to be replaced, making them inefficient and costly for use in internal grooving operations, especially in small holes.
Innovation Solution
A rotary slot cutting tool with a disc-like cutter portion and a shank portion featuring a resilient clamping mechanism and a unique insert receiving slot design that allows for the releasable and resilient clamping of a cutting insert, which includes wide and narrow lateral extensions for enhanced cutting capabilities and ease of extraction, reducing the need for replacing the entire tool when a cutting edge is damaged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If disc shaped solid carbide slotting heads with multiple cutting edges are used for internal grooving, then cutting capability is improved, but manufacturing cost increases and replaceability of cutting edges decreases
Solution Approach 1:
The cutting tool is segmented into a reusable tool body and replaceable cutting inserts. The insert receiving slot is designed to accommodate separate cutting inserts that can be independently replaced, allowing the expensive tool body to be reused while only the consumable inserts are replaced after wear or damage.
Solution Approach 2:
Different parts of the tool have different properties: the tool body is made of durable material for repeated use, while the cutting inserts are made of carbide for cutting performance. The inserts can be replaced when worn, maintaining cutting capability without replacing the entire tool.
2Adaptability or versatility
If disc shaped solid carbide slotting heads are used for internal grooving, then cutting capability is improved, but tool replaceability worsens
Solution Approach 1:
The tool is divided into a permanent tool body and replaceable cutting inserts. When cutting edges become damaged or worn, only the inserts need to be replaced by removing them from the insert receiving slot and inserting new ones, rather than replacing the entire tool head.
Solution Approach 2:
The cutting inserts are designed as consumable parts that can be discarded when worn and recovered/replaced in the tool body. The resilient clamping member allows for easy insertion and removal of inserts, facilitating quick replacement without specialized tools or procedures.
3Ease of operation
If resilient clamping mechanism is used to retain cutting inserts, then ease of insert replacement is improved, but device complexity increases
Solution Approach 1:
The clamping mechanism uses a resilient (elastic) clamping member that can dynamically adjust its clamping force on the cutting insert. The resilience allows the member to flex during insert installation and operation, providing automatic centering and secure retention without complex adjustment mechanisms.
Solution Approach 2:
The resilient clamping member automatically secures the cutting insert in place through its elastic properties, providing self-centering and self-retention functionality. The insert is simply inserted into the slot and the resilient member naturally clamps it without requiring additional fastening operations or complex locking mechanisms.
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 solution enables cost-effective maintenance and operation by allowing individual cutting edges to be replaced, improving the tool's durability and efficiency in internal grooving tasks without increasing the tool's overall size or complexity.
Implementation Method 1
a resilient clamping member rotationally ahead of the lower jaw member and 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 and a shank portion projecting rearwardly therefrom. The cutter portion includes a resilient clamping portion having a peripherally disposed insert receiving slot. The shank portion includes a peripherally disposed forward shank recess that is axially adjacent the cutter portion. A radially inward portion of the insert receiving slot merges in the rearward direction with the forward shank recess. A cutting insert is releasably and resiliently clamped in the insert receiving slot to form a rotary slot cutting tool. The cutting insert includes two cutting portions that each include a long and short insert lateral extension, the long insert lateral extension being longer than the short insert lateral extension. The longest insert lateral extensions are orated on opposite sides of the cutting insert.