Flash Welding Clamp Layout for Easier 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 easy lateral access to the clamp maintenance area, featuring adjustable clamps and transformers located laterally, enabling quick maintenance and safer operations using common aids like cranes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the transformer is located above the inclined upper surfaces of the two structures, then the electric current can be supplied to the products to be welded, but the access and maintenance of the internal parts of the machine becomes difficult

Engineering Contradiction:
Improveelectric current supplyVSAvoidaccess and maintenance
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent relocates the transformer from a vertical position above the structures to a lateral position outside the carriage structure. This spatial reconfiguration in a different dimension (from vertical to lateral placement) allows maintenance personnel to access the transformer and related components from the side, eliminating the need to work from above and significantly improving accessibility for maintenance operations while maintaining electrical connection functionality

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

2Force

If the second upsetting cylinder is arranged at the feet of the two inclined structures, then the clamping force can be applied to join the products, but the clamp maintenance area becomes inaccessible without disassembling the cylinder

Engineering Contradiction:
Improveclamping forceVSAvoidclamp maintenance accessibility
Core Design Contradiction:
ForceVSEase of repair

Solution Approach 1:

The patent divides the upsetting cylinder assembly into separable components, with the cylinder body and the clamp holder structure as distinct segments. The clamp holder structure with clamps can be independently removed from the cylinder assembly, allowing maintenance personnel to access and service the clamps without disassembling the entire upsetting cylinder mechanism. This segmentation enables independent access to the clamp maintenance area while preserving the clamping force generation capability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent extracts the clamp holder structure from the upsetting cylinder assembly, creating a separate accessible component. The clamp holder with clamps can be removed and serviced independently from the cylinder body, allowing maintenance personnel to access the clamp maintenance area without disassembling the upsetting cylinder. This extraction resolves the accessibility problem while maintaining the functional integrity of the clamping system

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 quick and safe maintenance of clamps with minimal disassembly, improving operational efficiency and safety by allowing easy access and reducing manual labor.

Implementation Method 1

two upsetting cylinders arranged parallel to the 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

Implementation Method 2

at least one transformer provided with conductors connected to the first clamping means and to the second clamping means, respectively, to supply electric current to said tail and said head

Methodology Applied
Scientific EffectElectrical resistance heating: Joule Heating

Data Source

PatentUS20250367751A1Welding machine
Publication Date: 2025.12.04 DANIELI & C OFFICINE MECCANICHE SPA
  • US20250367751A1 patent drawing
  • US20250367751A1 patent drawing
  • US20250367751A1 patent drawing

AI summary

A welding machine, preferably of the flash welding type, designed to facilitate maintenance of the clamping means, e.g. clamps, of the two longitudinal metal products to be welded. Advantageously, a first structure provided with first clamping means and a second structure provided with second clamping means are supported in a first part of the carriage delimited by a first beam and a second beam of the carriage that are parallel to the feeding direction X, while the at least one transformer is fixed to the carriage and supported in a second part of the carriage arranged laterally outside the first part. Moreover, the two upsetting cylinders 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.