Adjustable Female Thread Repairing Tool for Rolling Restoration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing thread repairing tools for female threads are complex to use, often specific to one diameter, and tend to cut rather than roll the thread, leading to material weakening and limited applicability.
Innovation Solution
A universal thread repairing tool with a case, a first beam with a forming roller, a second beam with a pitch profile, and an adjusting mechanism that allows fine adjustment to different diameters, ensuring the beams remain substantially parallel to roll the thread without cutting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single roller is used in the thread repairing tool, then the device complexity is reduced, but the manufacturing precision deteriorates because the roller tilts by the pitch angle causing cutting instead of rolling
Solution Approach 1:
The single roller is divided into two separate rollers, each responsible for a specific function. The first roller has a forming profile that contacts the damaged thread, while the second roller provides support and stabilization. This segmentation prevents the roller from tilting by the pitch angle, eliminating the cutting effect and ensuring proper rolling of the thread material.
2Manufacturing precision
If the repairing tool is designed for a specific diameter, then the manufacturing precision is improved, but the adaptability deteriorates as it cannot repair threads of different diameters
Solution Approach 1:
The tool incorporates adjustable components that allow the distance between the two rollers and their positions relative to the thread axis to be modified. This dynamic adjustment capability enables the same tool to accommodate threads of different diameters while maintaining the precise geometric relationship between rollers required for accurate thread forming.
Solution Approach 2:
By incorporating adjustment mechanisms, the tool is transformed from a single-diameter specialized device into a universal tool that can repair female threads of various diameters. The adjustment capabilities allow the tool to adapt its configuration to match different thread sizes while maintaining the rolling action necessary for precise repair.
3Ease of operation
If the roller is tilted by the pitch angle to engage the thread, then the ease of operation is improved, but the strength deteriorates due to cutting the thread and removing material
Solution Approach 1:
Instead of tilting the roller by the pitch angle to engage the thread (which causes cutting), the invention inverts the approach by keeping the rollers parallel to each other and perpendicular to the thread axis. The engagement is achieved through the geometric configuration of the rollers and their rolling motion, not through tilting, thereby preventing material removal and preserving thread strength.
4Manufacturing precision
If two rollers are used instead of one, then the manufacturing precision is improved by preventing thread cutting, but the device complexity increases
Solution Approach 1:
The two rollers are integrated into a single unified tool body with a common adjustment mechanism. This merging of components allows the complex function of preventing thread cutting while maintaining manufacturing precision to be achieved through a coordinated system rather than separate independent elements, reducing overall device 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
The tool effectively repairs female threads of various diameters by rolling the material, avoiding cutting and material weakening, and ensuring easy and safe engagement with the thread.
Implementation Method 1
the thread being repaired is rolled rather than cut
Data Source
AI summary
The pending invention relates to means for repairing female threads. The claimed thread repairing tool (1) for repairing a female thread (2) being damaged comprises the case (3), the first beam (4), the second beam (5), the forming roller (6) rotatably and movably installed on the first beam (4), the pitch profile means (7) installed on the second beam (5), and the adjusting means for providing reciprocal moving to and apart from each other and fixing the first beam (4) and the second beam (5). The invention provides a universal robust tool for repairing female threads allowing adjustment thereof to a diameter of the thread being repaired while applying substantially rolling of the material the thread is made of but not cutting thereof.