Dust-Resistant Tooling Machine Structure with Pressure Release

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Solution Overview

Problem

Conventional tooling machines lack a dust-resistant structure for shaft supporters, leading to dust accumulation and operational issues due to trapped pressure.

Innovation Solution

A dust-resistant structure comprising a bridging ring, dust-resistant rubber ring, and sealing cover, with pressure release members and filtering elements to prevent dust entry and pressure buildup, ensuring effective sealing and operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a cover is disposed corresponding to a shaft supporter to isolate it from dust, then dust resistance is improved, but pressure generated by the dynamic module becomes trapped in the isolated space causing operational failure

Engineering Contradiction:
Improvedust accumulation in shaft supporterVSAvoidshaft supporter operation
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The sealing cover is divided into multiple functional regions: a dust-proof sealing portion that isolates the shaft supporter from dust, and a pressure release portion with through-holes that allows pressure to escape. This segmentation enables the cover to simultaneously provide dust protection and pressure relief, resolving the contradiction between dust resistance and operational reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pressure release portion acts as an intermediary mechanism between the isolated shaft supporter space and the external environment. It mediates the pressure buildup by providing a controlled escape path for excess pressure while maintaining the dust barrier, thus preventing operational failure without compromising dust resistance.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If the shaft supporter is isolated from the dynamic module, then dust entry is blocked, but pressure release becomes difficult

Engineering Contradiction:
Improvedust entry into shaft supporterVSAvoidpressure buildup in isolated space
Core Design Contradiction:
Object-affected harmful factorsVSStress or pressure

Solution Approach 1:

The sealing cover is segmented into distinct functional zones: the dust-proof sealing portion creates the isolated space to block dust entry, while the pressure release portion with strategically positioned through-holes provides pressure relief pathways. This segmentation allows simultaneous achievement of dust isolation and pressure management.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the sealing cover have different functional qualities: the dust-proof sealing portion provides dust barrier properties, while the pressure release portion with through-holes provides pressure equalization properties. This local differentiation of functional qualities enables the cover to address both dust entry prevention and pressure release requirements.

Inventive Principle:
Principle #3Local quality

3Object-affected harmful factors

If sealing structures are added to prevent dust accumulation, then dust resistance is improved, but device complexity increases

Engineering Contradiction:
Improvedust accumulation in active portionVSAvoidstructure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The dust-proof sealing portion and pressure release portion are merged into a single integrated sealing cover component. This merging eliminates the need for separate dust covers and pressure relief mechanisms, reducing overall device complexity while maintaining comprehensive dust protection and pressure management functionality.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The sealing cover is designed as a multi-functional component that simultaneously performs dust sealing, pressure release, and structural support functions. This universality reduces the total number of components needed in the system, thereby simplifying the overall device structure while achieving multiple protective functions.

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

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 effectively blocks dust from accumulating in shaft supporters, prevents pressure-induced malfunctions, and maintains the tooling machine's operational efficiency by releasing pressure and filtering out dust.

Implementation Method 1

The dust-resistant rubber ring is assembled to the ring body and disposed in the inside-ring region with an inner rim thereof contacting the accommodation member to block dust

Methodology Applied
Scientific EffectPhysical sealing: Physical Containment

Implementation Method 2

the tooling machine further comprises at least one filtering element respectively disposed in the cut groove of the pressure release member for blocking the dust from entering the inside-ring region

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 3

the pressure release member interconnects with the inside-ring region for releasing a pressure generated by the operating dynamic module to pass through the accommodation member to the inside-ring region

Methodology Applied
Scientific EffectPressure release: Depressurisation

Data Source

PatentEP3187307B1Dust-resistant structure for tooling machine
Publication Date: 2019.10.30 XPOLE PRECISION TOOLS INC
  • EP3187307B1 patent drawingFigure 1
  • EP3187307B1 patent drawingFigure 2
  • EP3187307B1 patent drawingFigure 3

AI summary

A dust-resistant structure for a tooling machine is disclosed. The tooling machine (1) includes a front plate (20) including an accommodation member (201) and a shaft supporter (21) disposed inside the accommodation member (201). The dust-resistant structure comprises a bridging ring (22), a dust-resistant rubber ring (23), and a dust-resistant sealing cover (24). The bridging ring (22) is disposed corresponding to the front plate (20), and includes a ring body (221), an inside-ring region (222) corresponding to the accommodation member (201), and at least one pressure release member (223) formed in the ring body (221) and interconnecting with the inside-ring region (222) for releasing pressure (51). The dust-resistant rubber ring (23) is assembled to the ring body (221) and disposed in the inside-region region (222) with an inner rim contacting the accommodation member (201) to block dust (50). The dust-resistant sealing cover (24) includes a cover body (241) assembled to and shielding the accommodation member (201) for blocking dust (50); and an assembling hole (242) formed in the cover body (242) and penetrated by the dynamic module (11).