Slotted Tool Adaptor for Secure Insert Clamping and Coolant Flow
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Solution Overview
Problem
Existing tool adaptors for metal cutting processes, particularly in turning and grooving operations, lack efficient designs for secure clamping and coolant passage routing, leading to suboptimal performance and machining limitations.
Innovation Solution
A tool adaptor with a front retaining portion having a base jaw, clamping jaw, and insert receiving pocket, along with a rear mounting portion featuring a secondary slot and fastening bore, allowing for resilient clamping and improved coolant passage routing, and secured to a tool shank using a fastening screw, facilitating efficient mounting and coolant flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional tool adaptor design is used with basic clamping structure, then the device complexity is low, but the clamping security and machining performance are insufficient
Solution Approach 1:
The adaptor is divided into distinct functional segments: a front retaining portion with insert receiving pocket, a rear mounting portion with mounting surface, and multiple slots (primary slot separating base jaw from clamping jaw, secondary slot separating clamping jaw from rear mounting portion). This segmentation allows each part to perform its specific function optimally while maintaining overall structural integrity and clamping security.
Solution Approach 2:
The adaptor incorporates dynamic clamping mechanisms where the clamping jaw can move relative to the base jaw through the primary slot, and the clamping portion is elastically displaceable toward the cutting insert. This dynamic structure enables adaptive clamping force application and improves clamping security while accommodating insert variations.
2Productivity
If coolant passage routing is not optimized in the adaptor, then the device complexity is low, but the coolant flow efficiency and machining performance deteriorate
Solution Approach 1:
The adaptor structure serves multiple functions simultaneously: the front retaining portion houses the cutting insert, the rear mounting portion provides mounting interface with the tool shank, the slots enable both clamping jaw movement and coolant passage routing, and the fastening bore secures the adaptor to the shank. This multi-functionality improves coolant flow efficiency without proportionally increasing complexity.
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
Enhances secure clamping and coolant flow efficiency, improving the performance of cutting tool assemblies in metal cutting processes by providing a robust and adaptable design that addresses machining limitations.
Implementation Method 1
a first fastening screw occupies the adaptor's first fastening bore and the shank's first shank bore to secure the tool adaptor to the tool shank
Implementation Method 2
the clamping portion is joined to a remaining portion of the basic holder by a hinge portion about which the clamping portion is elastically displaceable toward the cutting insert
Data Source
AI summary
A tool adaptor has a front retaining portion and a rear mounting portion, the front retaining portion having a base jaw, a clamping jaw, and an insert receiving pocket located therebetween, and the rear mounting portion having a rear mounting surface and a first fastening bore. A primary slot separates the base jaw from the clamping jaw and communicates with the insert receiving pocket, and a secondary slot transverse to the primary slot separates the clamping jaw from the rear mounting portion. The first fastening bore has a first bore axis which intersects the rear mounting surface and the secondary slot. A cutting tool assembly includes a tool shank, and the tool adaptor secured to a front mounting portion of the tool shank by means of a first fastening screw occupying the first fastening bore and a first shank bore of the front mounting portion.