Ultrasonic Cutting Tool Form-Locking Block Design
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Solution Overview
Problem
Ultrasonic cutting devices face issues with the cutting tool becoming loose, overheating, and positional instability due to the limitations of existing fastening methods, which can lead to reduced cutting performance and increased wear.
Innovation Solution
A cutting tool with a form-locking block design that provides additional security by interlocking with a complementary opening, ensuring precise positioning and preventing slippage or rotation, while maintaining even mass distribution for optimal vibration performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw connection is used to attach the cutting tool to the sonotrode, then the tool can be securely fastened, but the tool may become loose or rotate under vibration and uneven loads
Solution Approach 1:
The attachment end is divided into multiple functional elements: a clamping surface for force application, a form-locking block for positional constraint, and a recess for screw engagement. This segmentation allows each element to perform its specific function optimally, preventing both loosening and rotation simultaneously
Solution Approach 2:
The attachment end combines different geometric features (flat clamping surface, protruding form-locking block, recessed screw mounting area) into a composite structure that works together to provide both clamping force and positional stability, solving the contradiction between fastening reliability and position stability
2Reliability
If the fastening end forms a significant part of the tool, then the tool is securely secured, but the tool weight increases
Solution Approach 1:
Instead of making the entire fastening end bulky, the invention concentrates the securing function in specific localized features: a clamping surface for force application, a form-locking block for positional constraint, and a recess for screw engagement. This localized approach provides reliable securing while minimizing additional weight
3Strength
If the cutting tool is made in one piece, then structural integrity is improved, but different materials cannot be used for the cutting end and fastening end
Solution Approach 1:
The cutting tool is segmented into two distinct parts: the cutting end and the attachment end. This segmentation allows each part to be manufactured from the most suitable material for its specific function while maintaining overall structural integrity through the standardized attachment interface
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 form-locking block design enhances the cutting tool's stability, preventing slippage and overheating, allowing for higher amplitude cutting with reduced risk of fatigue and maintaining precise positioning under stress, thus improving the overall cutting performance and tool longevity.
Implementation Method 1
In the converter, electrical energy is usually converted into mechanical energy through the use of piezoceramics
Implementation Method 2
The high-frequency ultrasonic vibrations generated by the vibrating unit are used for the cutting/separating effect
Data Source
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AI summary
The invention relates to a cutting tool (1) for an ultrasonic cutting device (10) and an ultrasonic cutting device (10) with a sonotrode (11) and cutting tool (1). The cutting tool (1) comprises a cutting end (2) and a mounting end (3) for insertion into a tool holder or a sonotrode (11). At least one positive locking block (4) extends from the mounting end (3) of the cutting tool (1). At least one complementary positive locking recess (17) is provided on the sonotrode (10), such that the positive locking block (4) forms a positive locking connection with the positive locking recess (17) at least in a longitudinal direction (25) connecting the cutting end (2) and the mounting end (3) when the cutting tool (1) is mounted in the sonotrode (11).