Rotary Welding Head Layout for Multi-Direction Component Welding

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Solution Overview

Problem

Conventional welding apparatuses are limited in the number of types of weldable components and face productivity issues due to restricted electrode tip changes and complex robotic posture requirements, especially when dealing with varying workpiece thicknesses and shapes.

Innovation Solution

A welding apparatus featuring a rotary table with multiple welding machines arranged in different directions, allowing for the use of various welding components and enabling the articulated robot to change its posture freely, thereby simplifying the alignment process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the guide tube is located near the welding head, then the welding apparatus can supply welding components, but the types of weldable welding components are limited to two types at maximum

Engineering Contradiction:
Improvenumber of types of welding componentsVSAvoidarrangement space for guide tube
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent transitions from a two-dimensional arrangement (left and right sides of the welding head) to a three-dimensional arrangement by placing guide tubes above and below the welding head. This spatial reconfiguration allows four guide tubes to be arranged around the welding head without increasing device complexity, thereby enabling welding of four different types of components.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The welding head serves as a central hub that can accommodate multiple guide tubes from different directions (above, below, left, right). This multi-functional arrangement allows the same welding head to handle multiple types of welding components through different guide tubes, increasing versatility without requiring multiple welding heads.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If the work needs to be moved close to the lower electrode while avoiding interference with the guide tube, then welding can be performed, but the posture of the articulated robot is limited

Engineering Contradiction:
Improverobot posture flexibilityVSAvoidalignment time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

By arranging guide tubes in three-dimensional space (above and below the welding head in addition to left and right sides), the patent creates additional spatial pathways for workpiece delivery. This allows the articulated robot to approach and position works from multiple angles without interference, significantly improving posture flexibility and reducing alignment time.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If the tip diameter of the electrode chip needs to be changed for different work thicknesses or materials, then welding quality can be maintained, but electrode exchange work is required which lowers productivity

Engineering Contradiction:
Improveelectrode exchange frequencyVSAvoidwelding quality consistency
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent configures multiple welding heads (first, second, third, and fourth welding heads) that can perform welding operations with different electrode chip diameters. Instead of changing electrodes on a single welding head, the system can select from multiple welding heads, each optimized for different workpiece thicknesses or materials, thereby maintaining welding quality without requiring frequent electrode exchanges.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20240261888A1Welding Apparatus That Arranges Welding Heads For Performing Welding In Plurality Of Different Directions And Welding Method Thereof
Publication Date: 2024.08.08 G TEKT CORPORATION
  • US20240261888A1 patent drawing
  • US20240261888A1 patent drawing
  • US20240261888A1 patent drawing

AI summary

A welding apparatus includes a rotary table (13) configured to support a support body (12) extending in a vertical direction such that it rotates about an axis in a vertical direction. The welding apparatus includes welding machines (11) provided to project outward from the support body (12), in which welding heads for welding a work are arranged in a plurality of different directions. The welding machines (11) include different welding heads or welding component supply machines of different welding components in accordance with a type of welding. It is possible to provide a projection welding apparatus capable of increasing types of weldable welding components to three or more.