Compression Line Spring Grinding with Adjustable Support

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Solution Overview

Problem

Conventional grinding apparatuses for compression line springs require precise alignment and setting of support blocks to stably fix the springs, making them difficult to manufacture, use, and maintain.

Innovation Solution

The apparatus and method involve adjustable chain conveyors with V-shaped support blocks that can accommodate misalignment, allowing for stable fixation of compression line springs without precise alignment, using adjustable distances and heights to ensure proper seating and grinding of the springs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If two support blocks are disposed at upper and lower positions facing each other to fix compression line springs, then the springs can be fixed in place, but precise alignment of the support blocks is required which makes the apparatus difficult to manufacture, use, and maintain

Engineering Contradiction:
Improvestable fixation of compression line springVSAvoidalignment precision requirement
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The lower support block is made movable in the vertical direction, allowing it to automatically adjust its position to accommodate variations in spring dimensions and alignment tolerances. This dynamic adjustment capability enables reliable fixation without requiring precise initial alignment of the support blocks, thereby resolving the contradiction between stable fixation and ease of manufacture

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention changes the positional parameter of the lower support block by making it vertically movable. This parameter change allows the support block to adapt to different spring sizes and alignment conditions, achieving stable fixation while eliminating the need for precise alignment during apparatus setup and operation

Inventive Principle:
Principle #35Parameter changes

2Stability of the object's composition

If V-shaped depressions are formed in support blocks to stabilize coil springs, then the springs can be stably supported, but accurate alignment of the two supports is still required

Engineering Contradiction:
Improvestable support of compression line springVSAvoidalignment setting complexity
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The lower support block's vertical movability provides dynamic adaptation to alignment variations, allowing the V-shaped depression to maintain proper engagement with the spring regardless of initial alignment conditions. This eliminates the need for complex alignment settings while preserving the stabilizing effect of the V-shaped depression

Inventive Principle:
Principle #15Dynamics

3Reliability

If support blocks are precisely processed and set for accurate alignment, then stable fixation of springs is achieved, but the apparatus becomes difficult to manufacture and maintain

Engineering Contradiction:
Improvestable fixation of compression line springVSAvoidmaintenance complexity
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The movable lower support block compensates for wear and dimensional variations that occur during apparatus use and aging. This dynamic adjustment capability maintains stable fixation performance without requiring complex recalibration or realignment procedures, thereby improving ease of repair and maintenance while preserving reliable spring fixation

Inventive Principle:
Principle #15Dynamics

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 stable fixation and grinding of compression line springs even with misaligned support blocks, simplifying the manufacturing, use, and maintenance of the apparatus by eliminating the need for precise alignment and processing of support block parts.

Implementation Method 1

transferring the compression line springs in a horizontal direction using the lower chain conveyor and the upper chain conveyor

Methodology Applied
Scientific EffectMechanical motion:

Implementation Method 2

grinding, using grinding units, seat surfaces formed on opposite ends of the compression line springs

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentEP2987589B1Compression line spring grinding device and grinding method
Publication Date: 2018.04.04 DAEWON KANG UP CO LTD
  • EP2987589B1 patent drawingFigure 1~2
  • EP2987589B1 patent drawingFigure 3
  • EP2987589B1 patent drawingFigure 4~5

AI summary

Disclosed herein is an apparatus for grinding a compression line spring. The apparatus includes a lower chain conveyor (100), an upper chain conveyor (200), and grinding units (300). The lower chain conveyor includes chain units each having first support blocks (115) for supporting compression line springs. The upper chain conveyor includes chain units each having second support blocks (215) for compressing downward upper portions of the compression line springs and thus supporting the compression line springs. The grinding units grind seat surfaces formed on opposite ends of the compression line springs that are moved by the upper and lower chain conveyors. A V-shaped depression (115a) is formed in each first support block so that each of the compression line springs is seated onto the corresponding V-shaped depression. A lower surface (215a) of the second support block that compresses the compression line springs has a planar structure.