Saw Tooth Welding Assembly With Predetermined Tip Centering
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Solution Overview
Problem
Existing devices for welding hard material bodies to saw blade teeth are complex due to the need for optical detection and intricate control processes to align the hard material body with the saw blade tooth, requiring multiple centering devices and feed mechanisms.
Innovation Solution
Integration of the first and second centering devices into a common assembly, where the saw blade centering process predetermines the position for the hard material body, allowing for mechanical alignment and simplification of the positioning process, with the second centering device adjusting the hard material body only after it is brought into contact with the tooth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If optical detection devices and complex control processes are used to align the hard material body with the saw blade tooth, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The first centering device for the saw blade and the second centering device for the hard material body are merged into a single common assembly. The saw blade centering process predetermines the position for the hard material body, eliminating the need for separate complex control systems and optical detection devices while maintaining positioning accuracy through mechanical predetermination.
Solution Approach 2:
The saw blade is centered by the first centering device before the hard material body is positioned. This preliminary centering action predetermines the exact position where the hard material body will be placed, ensuring accurate alignment without requiring complex real-time detection and control systems during the positioning phase.
2Manufacturing precision
If multiple separate centering devices and feed mechanisms are used, then positioning accuracy is improved, but ease of operation deteriorates
Solution Approach 1:
Both centering functions are combined in one assembly, allowing the operator to work with a single integrated unit rather than coordinating multiple separate devices. The common assembly automatically sequences the centering operations, simplifying the operator's task while maintaining high positioning accuracy.
Solution Approach 2:
The common assembly performs the centering operations automatically in sequence - first centering the saw blade, then using that position to predetermine and guide the hard material body placement. This self-service mechanism reduces operational complexity by eliminating the need for manual coordination between multiple independent devices.
3Manufacturing precision
If separate centering devices for saw blade and hard material body are used, then positioning accuracy is improved, but device complexity increases
Solution Approach 1:
The first centering device for the saw blade and the second centering device for the hard material body are integrated into a single common assembly. This merger maintains the functional separation needed for accurate alignment while reducing the overall number of devices from two independent systems to one unified system.
Solution Approach 2:
The common assembly performs multiple functions - it centers the saw blade and subsequently centers the hard material body relative to the centered blade. This multi-functionality eliminates the need for separate dedicated centering devices while preserving the accuracy benefits of having distinct centering operations for each component.
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 approach simplifies the feeding and positioning processes, ensuring accurate and reliable alignment of the hard material body relative to the saw blade tooth, reducing operational complexity and improving positioning accuracy.
Implementation Method 1
resistance welding device with a welding electrode
Data Source
Figure 1a
Figure 1b
Figure 2
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); a first centring device (30) for centring the saw blade (8) transverse to the feed direction (14); a second centring device (32) for centring a respective hard material element (4) transverse to the feed direction (14); a resistance welding device (24) having a welding electrode (26) that can be deployed into and withdrawn from the working region (10); and a supply device (28) for supplying and transferring a respective hard material element (4) to the welding electrode (26), and wherein the welding electrode (26) can be deployed in such a way that the hard material element (4) can be brought towards the tooth (6a) to abut the latter. According to the invention, the hard material element (4) can be centred relative to the centred and fixed saw blade (8) by means of the second centring device (32), and the first and second centring device (30) are provided in a common assembly (38), such that the centring of the saw blade (8) by the first centring device (32) specifies a centring position for the subsequent centring of the hard material element (4) by the second centring device (32).