Cutter Holder With Elastic Web For Transverse Force Absorption
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Solution Overview
Problem
Existing holders for chip-removing tool inserts face challenges in effectively taking up transverse force components, particularly during one-sided loading or when a piece breaks off, due to the spatial separation of the actuation member from the slot, leading to disturbing transverse forces.
Innovation Solution
The introduction of an elastic connecting web that bridges the second end of the slot between the pivotable clamping jaw and the cutter carrier, allowing for improved transfer of forces while maintaining pivotability, and an angularly offset slot design to enhance clamping force, which acts like a spring to guide the clamping jaw back to its initial position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the actuation member is spatially separated from the slot with a force transfer member, then the clamping force can be applied reliably, but disturbing transverse forces are generated during one-sided loading or piece breakage
Solution Approach 1:
The patent removes the force transfer member from the system, bringing the actuation member into direct contact with the slot. This extraction of the intermediate element eliminates the mechanism that generated transverse forces, while maintaining reliable clamping force application through direct force transfer from the actuation member to the clamping jaw via the slot.
Solution Approach 2:
The patent merges the actuation member and the slot into a single integrated force transfer path. By eliminating the separate force transfer member and directly connecting the actuation member to the slot, the system combines multiple components into one unified structure, thereby eliminating the interface that generated harmful transverse forces.
2Ease of operation
If the slot extends to the side edge of the cutter carrier, then the clamping jaw has full pivotability, but transverse forces cannot be effectively taken up
Solution Approach 1:
The patent creates an asymmetric slot configuration where the slot does not extend symmetrically to the side edge of the cutter carrier. Instead, the slot is positioned and oriented asymmetrically to provide adequate pivotability space for the clamping jaw while terminating before reaching the side edge, thereby creating a structural asymmetry that enables both pivotability and transverse force resistance.
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 effectively takes up transverse forces, ensures the clamping jaw's pivotability, and increases the clamping force on the tool insert, allowing for better clamping and removal of the tool insert while minimizing disturbing forces.
Implementation Method 1
an elastic connecting web that bridges the second end of the slot being disposed between the pivotable clamping jaw and the cutter carrier
Implementation Method 2
the elastic connecting web in the end region of the second end of the slot has been found to be particularly advantageous in this respect, such that the second end of the slot thus no longer opens outwards entirely at the side edge, as in the case of the known holder, but is, as it were, bridged there by the elastic connecting web
Data Source
AI summary
The present invention relates to a holder for a machining tool insert, in particular a lancing or cutting insert, having an approximately beam-shaped cutter holder, a cavity formed inside the end thereof, which serves as a receiving pocket for the tool insert and is bounded by clamping jaws that define the clearance width of the receiving pocket, a slot extending with a first end to within the proximity of the inner edge of the receiving pocket so as to permit elastic pivotability of one of the clamping jaws, and having a clamping arrangement comprising an actuation member for producing a clamping force that acts within the region of the slot upon the pivotable clamping jaw. In order to attain improved absorption of transverse force components acting upon the pivotable clamping jaw, it is furthermore provided in said holder that the second end of the slot extends within the proximity of the lateral edge of the cutter holder, with an elastic connecting web that bridges the second end of the slot being disposed between the pivotable clamping jaw and the cutter holder.