Multi-Directional Vise Structure for Precise Specimen Cutting

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Solution Overview

Problem

Conventional devices struggle to stably fix and cut specimens, particularly those with circular outer surfaces, leading to difficulties in precise cutting and maintaining exact dimensions, especially when cutting in multiple directions, which is necessary for inspecting internal welds.

Innovation Solution

A multi-directional vise device with a first and second body part, jig parts, and a compression part that adjusts the gap between them, allowing for firm fixation and guiding cuts in multiple directions, including a cut part and an upper plate with a guide part that rotates to facilitate precise cutting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional fixing means (clamp) are used to fix the specimen, then the specimen can be held in place, but the specimen cannot be fixed stably and firmly, resulting in inability to control force and vibration caused by the saw

Engineering Contradiction:
Improvestability of specimen fixationVSAvoidprecision of cutting position
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The vise device is divided into a first body part and a second body part that can move relative to each other. The first body part includes a first clamp for fixing the specimen, while the second body part includes a second clamp and can be moved to apply additional clamping force. This segmentation allows the device to provide both initial fixation and enhanced stabilization, resolving the contradiction between reliable fixation and cutting precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The second body part is designed to be movable relative to the first body part, allowing dynamic adjustment of clamping force. The compression part enables the user to move the second body part toward the first body part to apply additional force on the specimen, providing dynamic control over the fixation stability during the cutting process.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the specimen is fixed to one position using conventional means, then the fixing process is simple, but it is difficult to cut the specimen in multiple directions while maintaining exact dimensions and shape

Engineering Contradiction:
Improvesimplicity of fixing processVSAvoidcapability to cut in multiple directions
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The vise device incorporates guide parts with guide grooves that can guide cutting tools in multiple directions (first direction parallel to the specimen's length, and second direction vertical to the length). The first and second clamps can independently adjust to accommodate specimens of different sizes and shapes. This multi-functionality allows the device to maintain ease of operation while providing versatility for cutting in multiple directions.

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

Solution Approach 2:

The device adds a vertical dimension (second direction) to the traditional horizontal clamping arrangement by introducing guide grooves that extend in both horizontal and vertical directions. This dimensional expansion allows the specimen to be guided and cut in multiple directions while maintaining the simplicity of the fixed-position clamping mechanism.

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

3Device complexity

If manual cutting using a hacksaw is used, then no special device is needed, but it takes a lot of time

Engineering Contradiction:
Improvesimplicity of equipmentVSAvoidspeed of cutting work
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The vise device acts as an intermediary between the simple hacksaw and the cutting task. By providing stable fixation through the first and second clamps and precise guidance through the guide grooves, the device enables the user to efficiently use a simple hacksaw, significantly reducing cutting time while maintaining equipment simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Length of moving object

If the specimen has a small diameter, then it is compact and easy to handle, but it is difficult to directly check the inside and requires cutting in multiple directions

Engineering Contradiction:
Improvediameter of specimenVSAvoidaccessibility to internal welded part
Core Design Contradiction:
Length of moving objectVSDifficulty of detecting and measuring

Solution Approach 1:

The guide parts with pre-formed guide grooves are prepared in advance on the first and second body parts. These guide grooves are specifically designed to facilitate cutting in multiple directions (horizontal and vertical) to access the internal welded part of small-diameter specimens. This preliminary preparation of guidance paths makes it easy to perform multi-directional cutting for inspection purposes.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4592665A1Multi-directional vise device and method of cutting multi-directional specimens using the same
Publication Date: 2025.07.30 DCSENG CO LTD
  • EP4592665A1 patent drawingFigure 1
  • EP4592665A1 patent drawingFigure 2
  • EP4592665A1 patent drawingFigure 3

AI summary

Provided is a multi-directional vise device, and more particularly, a multi-directional vise device, which holds and guides a specimen having a length in one direction to cut the specimen in multiple directions, the device comprising: a first body part and a second body part facing each other and spaced apart from each other by a certain gap in a second direction vertical to a first direction while having the first direction, which is a length direction of the specimen, as a reference axis; at least one jig part disposed in each portion of the first body part and the second body part that accommodates the specimen; and a compression part adjusting the gap between the first body part and the second body part, wherein at least one of the first body part and the second body part has at least a portion of its upper side that includes a cut part formed in the second direction.