Flash Welding Machine Clamp Maintenance Access

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Solution Overview

Problem

Existing flash welding machines face difficulties in providing easy access for clamp maintenance, requiring significant disassembly and manual labor, which complicates servicing and poses safety risks for operators.

Innovation Solution

A flash welding machine design with structures and upsetting cylinders positioned to allow lateral access, featuring adjustable upper clamps and fixed lower clamps, enabling quick maintenance and safer operations using common aids like cranes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the second upsetting cylinder is arranged at the feet of the two inclined structures, then the machine structure is compact, but the clamp maintenance area becomes inaccessible without disassembling the cylinder

Engineering Contradiction:
Improveclamp maintenance accessibilityVSAvoidmachine structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent repositions the second upsetting cylinder from a horizontal arrangement at the feet of the structures to an inclined arrangement above the structures. This spatial reconfiguration in a different dimension (from horizontal to inclined/vertical space) allows operators to access the clamp maintenance area laterally without disassembling the cylinder, while maintaining structural compactness through the inclined geometry

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

2Ease of manufacture

If the transformer is located above the inclined upper surfaces of the two structures, then the electrical connections are optimized, but access and maintenance of internal parts becomes difficult

Engineering Contradiction:
Improveelectrical connection optimizationVSAvoidinternal parts maintenance
Core Design Contradiction:
Ease of manufactureVSEase of repair

Solution Approach 1:

The patent segments the machine into distinct functional zones: the transformer remains positioned above the inclined structures for optimized electrical connections, while the clamp maintenance area is separated and made accessible from the lateral side. This spatial segmentation allows independent access to different components without interfering with each other's optimal positioning

Inventive Principle:
Principle #1Segmentation

3Ease of repair

If operators must get inside the machine for clamp maintenance, then comprehensive servicing is possible, but safety risks increase and manual labor intensifies

Engineering Contradiction:
Improveclamp servicing capabilityVSAvoidoperator safety risks
Core Design Contradiction:
Ease of repairVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the clamp maintenance function from the enclosed machine interior and positions it at the lateral accessible area. Operators can now service clamps from outside the machine structure, eliminating the need to enter confined spaces and reducing exposure to harmful factors while maintaining comprehensive servicing capability

Inventive Principle:
Principle #2Taking out (Extraction)

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

Facilitates easy and efficient clamp maintenance with minimal disassembly, enhancing safety and operational efficiency by allowing lateral access and reducing manual intervention.

Implementation Method 1

The welding is achieved by means of electric shocks generated by power supplies connected to the products to be welded

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Implementation Method 2

two upsetting cylinders arranged parallel to said feeding direction X to move the second structure either towards or away from the first structure along the feeding direction X

Methodology Applied
Scientific EffectHydraulic pressure: Hydraulic Press

Data Source

PatentEP4547414B1Welding machine
Publication Date: 2026.04.08 DANIELI & C OFFICINE MECCANICHE SPA
  • EP4547414B1 patent drawingFigure 1
  • EP4547414B1 patent drawingFigure 2
  • EP4547414B1 patent drawingFigure 2a

AI summary

A welding machine, preferably of the flash welding type, designed to facilitate maintenance of the clamping means (3, 4, 6, 7), e.g. clamps, of the two longitudinal metal products to be welded. Advantageously, a first structure (2) provided with first clamping means (3, 4) and a second structure (5) provided with second clamping means (6, 7) are supported in a first part (10) of the carriage (1) delimited by a first beam (9) and a second beam (8) of the carriage (1) that are parallel to the feeding direction X, while the at least one transformer (36) is fixed to the carriage (1) and supported in a second part (11) of the carriage (1) arranged laterally outside the first part (10). Moreover, the two upsetting cylinders (23, 24) are arranged along a plane Y inclined by an acute angle different from zero relative to a horizontal plane and passing through a passage zone of the longitudinal metal products along a feeding direction X.