Magnetic Female Die Alignment for Polygonal Profile Punching

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Solution Overview

Problem

Existing press punching machines face inefficiencies in aligning and positioning elongated non-ferric enclosed polygonally profiled workpieces due to the need for precise alignment between the female die matrix and the male die, which is time-consuming and inconvenient, especially with long profiled bars.

Innovation Solution

A press punching machine equipped with a polygonal female die matrix and a driving mechanism using magnets to align and position the matrix within the workpiece, ensuring accurate alignment of counter-openings with the male die, facilitated by indicatory magnets for confirmation and electromagnets for precise positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional press punching machines are used with manual alignment methods, then the punching operation can be performed, but the alignment time between female die matrix and male die is time-consuming and inefficient

Engineering Contradiction:

Improvepunching operation efficiencyVSAvoidalignment time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical alignment methods with a magnetic field-based alignment system. Electromagnets generate magnetic fields that automatically attract and position the female die matrix aligned with the male die, eliminating time-consuming manual alignment operations while maintaining punching efficiency

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The female die matrix is equipped with magnetic attraction mechanisms that enable it to self-align with the male die automatically. The matrix actively seeks and maintains proper positioning through magnetic forces, reducing the need for operator intervention and minimizing alignment time

Inventive Principle:

Principle #25Self-service

2Manufacturing precision

If precise manual alignment is used to position the female die matrix, then accurate punching can be achieved, but the operation becomes inconvenient and time-consuming

Engineering Contradiction:

Improvealignment accuracyVSAvoidalignment convenience

Core Design Contradiction:

Manufacturing precisionVSEase of operation

Solution Approach 1:

The patent substitutes manual mechanical positioning with an electromagnetic positioning system. Electromagnets create magnetic fields that automatically guide and secure the female die matrix in the correct position, achieving precise alignment while greatly improving operational convenience by eliminating manual adjustment efforts

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces magnetic fields as an intermediary between the male die and female die matrix. This magnetic intermediary automatically mediates the alignment process, ensuring precise positioning without requiring direct manual intervention, thus improving both accuracy and ease of operation

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If traditional punching methods are used without magnetic alignment, then the machine structure can be simpler, but frictional forces cause jamming and reduce punching accuracy

Engineering Contradiction:

Improvemachine structure complexityVSAvoidpunching operation reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent replaces friction-based mechanical contact alignment with a magnetic field-based alignment system. The electromagnets generate magnetic fields that attract and position the female die matrix without physical contact, eliminating frictional forces that cause jamming while maintaining relatively simple machine structure

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the fundamental parameter of interaction from mechanical contact (with friction) to magnetic field interaction (without contact). This parameter change eliminates frictional forces entirely, preventing jamming and improving punching reliability while adding only minimal magnetic alignment components to the machine structure

Inventive Principle:

Principle #35Parameter changes

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

This solution enables efficient and accurate punching of apertures in elongated non-ferric enclosed polygonally profiled workpieces, reducing alignment time and preventing jamming, while allowing for double- or triple-sided punching operations with improved magnetic alignment and reduced frictional forces.

Implementation Method 1

at least one driving magnet configured to interact with the at least one driven magnet embedded into the side portion of the polygonal female die matrix

Methodology Applied

Scientific EffectMagnetic interaction: Magnetism

Data Source

PatentUS11173534B2Press punching machine and respective method of punching apertures in elongated nonferric enclosed polygonally profiled workpieces

Publication Date: 2021.11.16 SHOHAM MACHINERY

AI summary

A press punching machine and respective method of punching apertures in elongated non-ferric enclosed polygonally profiled workpieces are described. The press punching machine includes a base plate; a mounting framework; a driving mechanism; a male die; a pedestal; a polygonal female die matrix including: a polygonal cross-section; at least one counter-opening; at least one driven magnet; at least one indicatory magnet; at least one driving magnet configured to interact with the at least one driven magnet and a magnetic element configured to interact with the indicatory magnet embedded into the polygonal female punch die matrix.