Resilient Insert Holder Jaw for Stable Internal Cutting Insert Clamping
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Solution Overview
Problem
Existing cutting tools for internal operations lack an efficient mechanism for resiliently clamping cutting inserts without additional clamping devices, which can lead to instability and reduced performance during metal cutting operations.
Innovation Solution
An elongated insert holder with a transversely oriented insert receiving pocket, featuring upper and lower jaws with a clamping recess and a resilience slot, allows the upper jaw to resiliently clamp the cutting insert by rotating around a pivot axis, eliminating the need for separate clamping devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cutting tools use additional separate clamping devices to secure cutting inserts, then the clamping stability is improved, but the device complexity and hardware requirements increase
Solution Approach 1:
The upper jaw is designed to perform both the clamping function and the positioning function simultaneously. The clamping mechanism is merged with the jaw structure itself, eliminating the need for separate clamping devices such as screws or clips. This integration maintains clamping stability while reducing device complexity
Solution Approach 2:
The upper jaw is made resilient and capable of self-clamping through its own elastic deformation. When the insert is inserted into the pocket, the resilient upper jaw automatically deflects and clamps the insert without requiring external actuation or additional clamping components. The jaw serves itself to provide the clamping force needed
2Ease of operation
If the upper jaw is made resilient to allow automatic clamping, then the ease of operation is improved, but the structural complexity increases due to the need for flexibility mechanisms
Solution Approach 1:
The upper jaw is designed as a flexible component with controlled elasticity. It incorporates flexibility through carefully designed thin sections or elastic materials that allow the jaw to deflect when an insert is inserted, providing automatic clamping. The flexibility is localized and controlled, maintaining overall structural integrity while enabling ease of operation
Solution Approach 2:
The upper jaw transitions from a static rigid structure to a dynamic resilient component. It can dynamically adjust its position and apply clamping force based on the insertion of the insert. This dynamic behavior allows automatic clamping without complex mechanisms, as the jaw naturally responds to insert insertion through elastic deformation
3Adaptability or versatility
If the insert receiving pocket is transversely oriented, then the adaptability for different cutting operations is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The transverse orientation of the insert receiving pocket allows the same holder design to be used for multiple cutting operations including grooving, slotting, and internal turning. The universal transverse configuration can accommodate different insert types and cutting applications, enhancing versatility without requiring multiple specialized holders for different operations
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
This design provides stable and secure clamping of cutting inserts, enhancing the tool's performance by allowing for adjustable positioning and improved resistance to cutting forces without additional hardware, thus improving the efficiency of internal cutting operations.
Implementation Method 1
the upper jaw being resiliently movable with respect to the lower jaw by rotating around a pivot axis
Data Source
AI summary
A cutting tool includes a cutting insert resiliently clamped in an insert holder. The insert holder has a holder longitudinal axis defining opposite forward to rearward directions, and a transversely oriented insert receiving pocket having a pocket longitudinal axis and a pocket front opening. The insert holder includes a forwardly located insert mounting portion that includes upper and lower jaws which together define the insert receiving pocket. The insert receiving pocket at the lower jaw includes a pocket lower clamping surface. The insert receiving pocket at the upper jaw includes a pocket upper clamping surface which faces mutually towards the pocket lower clamping surface. The insert receiving pocket at one of the upper and lower jaws includes a pocket stopper surface facing generally towards the pocket front opening. The upper jaw includes an outer flexibility groove recessed in the holder peripheral surface.