Welding Tip Replacement Linkage for Low-Downtime Robotic Welding
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Solution Overview
Problem
Conventional welding tip supplying apparatuses for welders are inefficient in replacing welding tips, leading to decreased productivity and increased downtime due to manual errors and the need for frequent replacement of accommodation cases, which affects manufacturing line stability.
Innovation Solution
A mechanical apparatus with a fixed bracket, actuators, and moving members that automatically remove and supply welding tips, equipped with sensors to detect tip availability and minimize robot movement, allowing for continuous and error-reduced tip replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual welding tip replacement is used, then device complexity is reduced, but productivity decreases and replacement time increases
Solution Approach 1:
The replacement apparatus is divided into multiple independent moving members (first moving member, second moving member, third moving member, fourth moving member) that can operate separately to perform different functions such as holding, pushing, and positioning welding tips. This segmentation allows each component to be optimized for its specific function while working together in a coordinated manner, improving overall replacement efficiency without requiring an overly complex monolithic structure.
Solution Approach 2:
The moving members are designed to perform multiple functions: the first moving member holds and pushes welding tips, the second moving member positions and guides them, and the third and fourth moving members assist in the replacement process. This multi-functionality reduces the need for separate dedicated components for each operation, balancing productivity improvement with device complexity management.
2Reliability
If accommodation case is replaced frequently to ensure continuous welding tip supply, then reliability of welding tip supply is improved, but loss of time for case replacement increases
Solution Approach 1:
The apparatus pre-positions multiple welding tips in the accommodation case using the moving members before the welding process begins. The first moving member holds several welding tips in advance, and the second moving member guides them into position, ensuring that replacement tips are ready and positioned correctly before they are needed, thus avoiding delays during actual replacement operations.
Solution Approach 2:
The automated moving members enable continuous welding tip supply by automatically transitioning between different tips without requiring manual intervention or complete case replacement. The coordinated action of the four moving members ensures that as one welding tip is consumed, the next tip is already in position, maintaining continuous productive action and eliminating downtime associated with case replacement.
3Productivity
If automated welding tip replacement is implemented, then productivity is improved, but device complexity increases
Solution Approach 1:
The apparatus employs four dynamically movable members that can move independently along predetermined paths to perform replacement operations. This dynamic design allows the system to adapt to different welding tip positions and replacement scenarios, improving productivity through automation while keeping the structure manageable by using simple, well-defined motion paths for each moving member rather than complex adaptive mechanisms.
4Loss of time
If robot movement is minimized during tip replacement, then replacement time is reduced, but positioning precision requirements increase
Solution Approach 1:
The moving members act as intermediaries between the robot and the welding tips, performing the precise positioning and replacement operations. The robot only needs to move to a general position, while the moving members (particularly the second moving member which guides and the third and fourth members which position) handle the precise alignment and insertion of welding tips, thus reducing robot movement time while maintaining positioning precision through specialized intermediary components.
Data Source
AI summary
An apparatus for supplying a welding tip of a welder and an apparatus for replacing the same include a fixed bracket secured to a support. The apparatus includes an actuator coupled to the fixed bracket and a first moving member moved by the actuator. A second moving member is coupled to the first moving member and hingedly coupled to the fixed bracket. A third moving member is hingedly coupled to the second moving member. A first welding tip removal member is coupled to the third moving member to separate a welding to tip coupled to a shank. A fourth moving member is disposed opposite to the first moving member. A fifth moving member is coupled to the fourth moving member and hingedly coupled to the fixed bracket. A sixth moving member is coupled to the fifth moving member. A second welding tip removal member is coupled to the sixth moving member.