High Density Welding Pallet Subassembly for Motor Vehicle Bodies

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Solution Overview

Problem

Current subassembly procedures in motor vehicle manufacturing are manpower-intensive, require large factory floor space, involve high capital expenditures, and pose safety and environmental concerns.

Innovation Solution

A high density welding subassembly machine that minimizes factory floor space, operational manpower, and initial capital investment, while facilitating easy maintenance and reducing safety and environmental concerns, using a pallet with successive substations for component assembly and welding, with robotic transfer systems for efficient component addition and welding operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If traditional subassembly procedures are used, then manufacturing flexibility is maintained, but factory floor space requirements increase and capital expenditures rise

Engineering Contradiction:
Improvefactory floor spaceVSAvoidsubassembly procedure complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The manufacturing system is segmented into modular pallets, each containing multiple substations for different assembly operations. This segmentation allows independent operation and optimization of each pallet module, reducing overall space requirements while maintaining functional complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple substations and assembly operations are nested within compact pallet structures. The pallets contain integrated substations that perform multiple functions in a nested arrangement, maximizing space utilization and reducing the overall factory floor space required for subassembly operations.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If manual subassembly procedures are used, then operational flexibility is maintained, but manpower requirements increase

Engineering Contradiction:
Improveoperational manpowerVSAvoidassembly efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The pallet-based system performs self-service through automated robotic operations at each substation. Robots automatically transfer components, perform welding operations, and assemble subcomponents without manual intervention, eliminating the need for extensive manpower while maintaining continuous productive operation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical assembly operations are replaced with automated robotic systems. Robots perform component transfer, positioning, and welding tasks that previously required human operators, thereby reducing manpower requirements while significantly improving assembly efficiency and productivity.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If extensive subassembly operations are performed, then component integration is improved, but safety and environmental concerns increase

Engineering Contradiction:
Improvecomponent integration qualityVSAvoidsafety and environmental hazards
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Hazardous welding and assembly operations are segmented into enclosed substation modules within the pallet system. Each substation is a self-contained unit that isolates potentially harmful processes from the surrounding environment and operators, maintaining component integration quality while reducing safety and environmental risks.

Inventive Principle:
Principle #1Segmentation

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 efficient and orderly assembly of motor vehicle components with reduced space requirements, minimal manpower, lower capital costs, and improved safety and environmental sustainability, while maintaining efficient production processes.

Implementation Method 1

welding each component subassembly at each substation of the pallet

Methodology Applied
Scientific EffectWelding: Welding

Data Source

PatentUS9802664B2High density welding
Publication Date: 2017.10.31 COMAU LLC
  • US9802664B2 patent drawing
  • US9802664B2 patent drawing
  • US9802664B2 patent drawing

AI summary

Methods for welding motor vehicle body component subassemblies at a weld stations are disclosed. First and second pallets may be arranged for reciprocal movement between a load/unload station and the weld station and the pallets are alternately moved from a load/unload station to the weld station while the other pallet is moved from the weld station to a load/unload station. Each pallet may have a plurality of substations for receipt of component subassemblies and, while each pallet is at the load/unload station, the component subassembly at each substation is moved to the next successive substation and a further component is added to the moved component.