Saw Blade Tooth Welding with Common Mechanical Centering
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Solution Overview
Problem
Existing devices for welding hard material elements onto saw blade teeth are complex due to the need for optical detection and complex control processes to align the hard material element with the saw blade tooth, making the positioning process less reliable and more complicated.
Innovation Solution
The integration of a common assembly for the first and second centering devices allows the saw blade to be centered and fixed first, predetermining the centering position for the hard material element, which is then adjusted by the second centering device to ensure accurate alignment with the tooth, eliminating the need for additional positioning measures during the welding process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If optical detection device and complex control processes are used to align the hard material element with the saw blade tooth, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The patent replaces the optical detection device and complex control processes with a purely mechanical centering system. The first centering device centers the saw blade, and the second centering device centers the hard material element relative to the centered saw blade, eliminating the need for optical sensors and complex control algorithms while achieving accurate positioning through mechanical predetermination of centering positions.
Solution Approach 2:
The first and second centering devices are integrated into a common assembly where the centering position of the saw blade by the first centering device simultaneously predetermines the centering position for the hard material element by the second centering device. This merging of functions reduces system complexity while maintaining positioning accuracy.
2Manufacturing precision
If optical detection and controlled adjustment are used to correct misalignment, then positioning accuracy is improved, but operational complexity increases
Solution Approach 1:
The first centering device performs preliminary centering of the saw blade before the hard material element is positioned. This preliminary action predetermines the centering position for the second centering device, eliminating the need for complex real-time detection and adjustment operations during the welding process.
Solution Approach 2:
The mechanical centering system is self-aligning through the common assembly design. The centering position of the saw blade automatically predetermines the centering position for the hard material element, making the system self-sufficient without requiring external optical detection or complex control operations.
3Manufacturing precision
If separate centering operations are performed for the saw blade and hard material element, then positioning accuracy is improved, but process time increases
Solution Approach 1:
The first and second centering devices are combined in a common assembly that operates in a fixed sequence. The saw blade is centered first, which simultaneously predetermines the centering position for the hard material element, allowing both centering operations to be performed efficiently without requiring separate, time-consuming measurement and adjustment cycles.
Solution Approach 2:
The first centering device performs the saw blade centering as a preliminary action that establishes the reference position for the second centering device. This preliminary centering eliminates the need for repeated measurements and adjustments, reducing total process time while maintaining high positioning accuracy.
Data Source
AI summary
The invention relates to a device (2) for welding hard material elements (4) onto teeth (6) of a saw blade (8), comprising a saw blade feed device (12) for moving the saw blade (8) in a feed direction (14), such that a tooth (6a) of the saw blade (8) can be brought into a target position (16) in a working region (10) of the device (2), comprising a first centering device (30) for centering the saw blade (8) transversely to the feed direction (14), comprising a second centering device (32) for centering a respective hard material element (4) transversely to the feed direction (14), comprising a resistance welding device (24) having a welding electrode (26) that can be deployed into and withdrawn from the working region (10), comprising a supply device (28) for supplying and transferring a respective hard material element (4) to the welding electrode (26), and it being possible for the welding electrode (26) to be deployed in such a way that the hard material element (4) can be brought toward the tooth (6a) to abut the tooth (6a). According to the invention, the hard material element (4) can be centered relative to the centered and fixed saw blade (8) by means of the second centering device (32), and the first and second centering device (30) are provided in a common assembly (38), such that the centering of the saw blade (8) by the first centering device (32) predetermines a centering position for the subsequent centering of the hard material element (4) by the second centering device (32).