Workpiece Recovery Cover with Step-like Transport Path

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Solution Overview

Problem

Conventional workpiece recovery units allow swarf and cutting oil to enter the recovery section due to an open upper side, compromising the recovery process.

Innovation Solution

A workpiece recovery unit with a cover that covers both the upper and lateral sides of the recovery opening, featuring a step-like transport path and a spindle-based holder that moves in multiple directions to prevent swarf and cutting oil entry, with the recovery opening positioned higher than the shaft center of opposing spindles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the recovery section has an opening in the upper side for workpiece recovery, then the workpiece can be recovered through the opening, but swarf and cutting oil easily enter the recovery section through the opening

Engineering Contradiction:
Improveworkpiece recoveryVSAvoidswarf and cutting oil contamination
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

A cover is provided that covers the upper side and lateral side of the recovery opening, forming a protective enclosure while allowing controlled access for workpiece recovery through the entrance opening in the cover

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The cover is segmented with a specific opening configuration - an entrance opening in the lateral side and an exit opening in the upper side - allowing separate control of workpiece entry and exit paths to prevent contamination

Inventive Principle:
Principle #1Segmentation

2Object-affected harmful factors

If a cover is added to cover the upper side and lateral side of the recovery opening, then swarf and cutting oil entry is prevented, but the device complexity increases

Engineering Contradiction:
Improveswarf and cutting oil contaminationVSAvoidrecovery section structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The cover structure is merged with the existing recovery section, integrating the protective function into the existing design rather than adding separate protective components

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The cover serves multiple functions simultaneously: it protects the recovery opening from contamination, guides the workpiece through the transport path, and integrates with the holder movement mechanism

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

3Device complexity

If the holder is made from one of the two opposing spindles, then no additional holder is needed, but the recovery opening must be positioned higher than the shaft center of the spindles

Engineering Contradiction:
Improveholder structureVSAvoidrecovery opening position
Core Design Contradiction:
Device complexityVSShape

Solution Approach 1:

The spindle is given a dual function: it serves both as the machining tool holder and as the workpiece holder for recovery, eliminating the need for a separate holder component

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

Solution Approach 2:

The recovery opening is repositioned in the vertical dimension (higher than the shaft center) to accommodate the spindle-based holder mechanism, utilizing vertical space to resolve the functional conflict

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

Data Source

PatentEP2692465B1Workpiece collecting device
Publication Date: 2016.03.30 CITIZEN MASCH CO LTD
  • EP2692465B1 patent drawingFigure 1
  • EP2692465B1 patent drawingFigure 2
  • EP2692465B1 patent drawingFigure 3

AI summary

To prevent entrance of swarf or cutting oil from a workpiece recovery opening, in a workpiece recovery unit, a cover 21 which covers an upper side and a lateral side of a workpiece recovery opening 19 opening in an upper side of a workpiece recovery section 18 disposed lateral to a holder 13 which holds a processed workpiece 1', a workpiece transport path 23 from an entrance 22 opening in a lower side provided in the cover 21 to the recovery opening 19 is formed in a step-like shape, the holder 13 is supported so as to be movable in an up-and-down direction and a right-and-left direction, the workpiece 1' is moved along the transport path 23 by the holder 13, and is transported to the upper side of the recovery opening 19 from the entrance 22 so as to be recovered in the recovery opening 19.