Thread Former Radial Molding Segmentation
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Solution Overview
Problem
Existing thread formers face difficulties in manufacturing due to clogging of grinding wheels during joint profile grinding, which complicates the production and regrinding of thread-forming teeth.
Innovation Solution
The thread former design allows shaped strips to protrude radially beyond the base body, enabling the profiling tool to only engage with the strips during production, reducing material complexity and facilitating easier manufacturing by allowing optimal tool selection, with moldings fastened in grooves for secure attachment and potential asymmetric or angled arrangements for improved performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the profiling tool is used to machine the base body and moldings together, then the thread-forming teeth can be produced, but the grinding wheel quickly becomes clogged due to the different materials
Solution Approach 1:
The patent extracts the moldings from the base body by making them protrude radially beyond the base body's outer surface. This separation allows the profiling tool to engage only with the moldings during thread-forming tooth production, preventing the base body from interfering with the grinding process and eliminating clogging issues.
Solution Approach 2:
The patent applies local quality by creating a specific geometric configuration where only the moldings protrude radially beyond the base body. This localized differentiation ensures that the profiling tool contacts only the moldings (made of hard, wear-resistant material) while the base body remains untouched during the threading operation, optimizing both tool life and manufacturing efficiency.
2Productivity
If the shaped strips protrude radially beyond the base body, then the profiling tool only needs to machine one type of material, but the moldings require secure fastening in the base body
Solution Approach 1:
The patent segments the thread former into two distinct components: the base body and the moldings. The moldings are designed as separate elements that protrude radially and can be individually fastened into receiving grooves in the base body. This segmentation allows for simplified manufacturing of each component and facilitates easy replacement or reconfiguration of the moldings.
Solution Approach 2:
The patent applies preliminary action by pre-forming receiving grooves in the base body before inserting and fastening the moldings. This preparatory step ensures secure attachment of the moldings while maintaining manufacturing efficiency, as the grooves can be machined into the base body using standard tools before the moldings are installed.
3Adaptability or versatility
If the moldings are arranged symmetrically or asymmetrically, then the thread former can be optimized for different applications, but the receiving grooves must be precisely positioned
Solution Approach 1:
The patent embraces asymmetry by allowing moldings to be arranged in either symmetric or asymmetric configurations depending on the specific application requirements. The receiving grooves can be positioned at different locations and orientations in the base body, enabling the thread former to be optimized for various threading operations while maintaining a unified design approach.
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 simplifies and speeds up the manufacturing process by ensuring the profiling tool only cuts one type of material and allows for efficient thread formation with reduced wear, enhancing the thread former's operational efficiency and longevity.
Implementation Method 1
The moldings can be reliably fastened in the receiving grooves, for example by soldering or gluing.
Implementation Method 2
The moldings can be reliably fastened in the receiving grooves, for example by soldering or gluing.
Data Source
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AI summary
The thread former is used for the non-cutting shaping of threads and has a main body (1') on which the moldings (6) are provided, distributed over the circumference. Said moldings are provided with thread-forming teeth (13, 14). Profile grinding tools are used to produce the thread-forming teeth (13, 14), both in the main body (1') as well as in the moldings (6). In order for the thread former to be produced easily and cost-effectively, the moldings (6) protrude radially beyond the main body (1') so far that the profile tool only engages with the molding when producing the thread-forming teeth (13, 14). Consequently, the profiling tool only has to machine one type of material. The thread former is used for the non-cutting shaping of threads, particularly of internal threads.