Automatic Racket Stringing With Triangulated Hole Positioning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing racket stringing methods are not fully automatic, relying on human technicians for stability and speed, resulting in low throughput and inconsistent stringing quality.
Innovation Solution
A fully automatic racket stringing system utilizing lens modules for coordinate detection and a robot arm for stringing, cutting, tensioning, and tying, with integrated control units for precise operation and database comparison for abnormality detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a robot arm is used to perform fully automatic stringing operations, then productivity and throughput are improved, but device complexity increases
Solution Approach 1:
The system divides the stringing process into distinct operational phases (positioning, stringing, cutting, tying) and uses multiple specialized robot arms for different tasks. Each robot arm is equipped with specific tools (grippers, cutters, tensioning devices) to perform its designated function, allowing parallel execution of multiple operations and improving overall productivity while managing complexity through functional specialization.
Solution Approach 2:
The system introduces a control unit as an intermediary that coordinates all robot arms and stringing operations. The control unit receives racket coordinate data, calculates optimal stringing paths, and synchronizes the movements of multiple robot arms, thereby managing the inherent complexity through centralized intelligence and enabling high-speed automated operation.
2Manufacturing precision
If lens modules are used to detect racket string hole coordinates, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The system replaces manual measurement and positioning methods with optical lens modules that automatically capture images of the racket and string holes. The control unit processes these images to extract precise coordinate data, eliminating the need for mechanical measurement tools and manual positioning, thereby achieving high positioning accuracy while reducing operational complexity.
3Loss of time
If automated robot arm operations are implemented, then loss of time is reduced, but reliability may worsen due to system complexity
Solution Approach 1:
The system incorporates continuous feedback loops where lens modules monitor racket position and string hole coordinates in real-time, and the control unit adjusts robot arm movements accordingly. This closed-loop control ensures that even with high-speed automated operations, the positioning accuracy and stringing quality remain consistent, maintaining reliability while reducing operation time.
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 system achieves consistent and efficient racket stringing, increasing production throughput and enabling automatic detection and replacement of racket strings, enhancing stability and quality.
Implementation Method 1
two lens modules respectively capturing, at different two angles, a racket string hole on a racket at a first predetermined position, wherein the lens modules determine a first relative coordinate of the racket string hole according to the angles and a triangulation
Data Source
AI summary
An automatic racket stringing system includes: two lens modules, respectively shooting a racket thread hole on a racket at a first preset position from different two angles, and the lens modules are based on the angles and determine a first relative coordinate of the racket line hole through a triangulation method; and a control unit controls a robotic arm to grab the racket from an initial position and move the racket to the first preset position; the control unit controls the robotic arm to a second preset position clamps a first end of a racket line, and when the first end of the racket line extends a preset length, it is cut by the robotic arm.