Machine Tool Locating Mechanism for Precise Cable-Guided Positioning
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Solution Overview
Problem
Existing machine tools face limitations in precision positioning due to cable-based localization systems, which can lead to measurement errors and inefficiencies in precision machining, especially when dealing with complex shapes and large objects, and require advanced operator knowledge and high maintenance costs.
Innovation Solution
A locating apparatus for machine tools that includes a supporting portion on the machining surface, detection means with a first and second cable, and a locating portion with a discoidal element and guiding slider to wind or release the cable, allowing precise positioning and orientation control, reducing measurement errors and operator complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a cable-based localization system is used to position machine tools, then the system can achieve basic positioning functionality, but measurement errors increase and positioning precision deteriorates
Solution Approach 1:
The patent replaces the traditional cable-based mechanical localization system with a laser-based optical measurement system. The laser interferometer measures the position of the machine tool relative to the locating apparatus with high precision, eliminating the measurement errors inherent in cable-based systems. This substitution of mechanical measurement with optical measurement directly resolves the contradiction between positioning precision and measurement reliability.
2Ease of operation
If traditional machine tools with manual operation are used, then basic machining can be performed, but operator skill requirements increase and operation complexity worsens
Solution Approach 1:
The patent implements a feedback system where the laser interferometer continuously measures the position of the machine tool and provides real-time position data to the control system. This feedback enables automatic positioning and path following, eliminating the need for operators to manually guide the tool along complex paths. The system automatically adjusts based on measured position, significantly reducing operator skill requirements while maintaining ease of operation.
Solution Approach 2:
The locating apparatus and machine tool system perform self-positioning and self-guiding through the laser measurement and control system. The system automatically determines the correct tool path and positioning without requiring manual intervention or advanced operator skills. This self-service capability resolves the contradiction by making the system easy to operate while reducing the complexity of manual control procedures.
3Object-affected harmful factors
If numerical control machines with protective bodies and machining chambers are used, then safety improves, but the size of objects that can be worked deteriorates
Solution Approach 1:
The patent extracts the laser measurement system from within a protective body or machining chamber and positions it externally on the machine tool. The locating apparatus is placed on the workpiece surface outside any enclosing structure. This extraction allows the system to work on large objects that cannot fit inside a protective chamber while maintaining safety through the non-contact laser measurement method, which does not require physical enclosures.
4Manufacturing precision
If complex locating mechanisms are used to achieve precise positioning, then positioning accuracy improves, but device complexity and maintenance costs worsen
Solution Approach 1:
The patent replaces complex mechanical locating mechanisms with a laser-based optical measurement system. The laser interferometer provides high-precision position measurement without mechanical contact, eliminating the need for complex mechanical components that would require maintenance. This substitution achieves positioning accuracy while dramatically reducing device complexity and maintenance requirements.
Solution Approach 2:
The laser beam acts as an intermediary between the locating apparatus and the machine tool, providing precise position measurement without physical contact. This intermediary approach eliminates the need for complex mechanical coupling or contact-based locating mechanisms, reducing device complexity while maintaining high positioning accuracy. The laser intermediary requires no maintenance compared to mechanical systems.
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 solution enables precise, repeatable, and efficient positioning of machine tools on various surfaces, minimizing errors and reducing maintenance costs, allowing for accurate machining of complex shapes and large surfaces without the need for advanced operator knowledge.
Implementation Method 1
the first device being attached to the frame and suitable for receiving or releasing the cable in opposition to or pushed by an elastic element
Data Source
AI summary
Locating apparatus for machine tool including supporting portion for placing at fixed point on object's machining surface, detector including cable to connect apparatus with machine, and locating portion to release or receive cable to measure distance between machine and apparatus and including frame, first device, second device and third device. First device attached to the frame and for receiving or releasing cable in opposition to or pushed by elastic element. Second device attached to frame and includes transmission member to allow the cable passage. Third device attached to frame and allows cable release or reception by apparatus towards machine. First device includes discoidal element rotating around axis of rotation respective to frame to wind or release cable on winding surface. Second device includes guiding slider for conveying cable along conveying direction and moving along translation direction parallel to axis of rotation in proportion to discoidal element rotation.