Rotating Carousel Assembly Workstation for Compact Component Storage

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Solution Overview

Problem

Existing assembly workstations face inefficiencies as the number of components increases, leading to longer removal routes and times due to voluminous container arrangements, which are not suitable for manual removal.

Innovation Solution

The use of a carousel system with drive units and programmable logic control, where containers are arranged concentrically on axially offset plate-shaped arms, allowing for efficient component placement in a compact gripping space and optimized access, supported by an optical signaling unit for accurate component retrieval.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If containers are arranged in an arc on the work surface, then components are accessible to the assembler, but the container arrangement becomes bulky and requires long removal distances

Engineering Contradiction:
Improvecomponent accessibilityVSAvoidcontainer arrangement space
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The patent transitions from a two-dimensional planar arrangement of containers on the work surface to a three-dimensional carousel structure with containers distributed on multiple plate-shaped arms at different radial distances and angular positions. This spatial transformation allows components to be stored compactly while maintaining accessibility through rotational movement, resolving the contradiction between space efficiency and component access.

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

Solution Approach 2:

The patent introduces a drive unit that rotates the carousel structure, transforming the static container arrangement into a dynamic system. The carousel can be rotated to bring any container to the removal position, enabling compact storage of many components while maintaining easy access through controlled rotation, thus resolving the contradiction between compactness and accessibility.

Inventive Principle:
Principle #15Dynamics

2Quantity of substance

If the number of containers is increased to accommodate more components, then component variety increases, but the container arrangement becomes more bulky

Engineering Contradiction:
Improvenumber of componentsVSAvoidcontainer arrangement volume
Core Design Contradiction:
Quantity of substanceVSVolume of stationary object

Solution Approach 1:

The patent uses a three-dimensional carousel structure with containers distributed on multiple plate-shaped arms at different radial distances and angular positions, allowing a large number of containers to be arranged in a compact vertical and radial configuration rather than spreading them out horizontally, thus increasing component quantity without proportionally increasing volume.

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

Solution Approach 2:

The carousel structure with multiple plate-shaped arms arranged concentrically creates a nested configuration where containers on inner arms are surrounded by containers on outer arms, maximizing the use of three-dimensional space and accommodating more components within a smaller overall volume.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Volume of stationary object

If containers are arranged in multiple horizontal planes, then space utilization improves, but component retrieval complexity increases

Engineering Contradiction:
Improvespace utilizationVSAvoidcomponent retrieval complexity
Core Design Contradiction:
Volume of stationary objectVSDevice complexity

Solution Approach 1:

The drive unit rotates the entire carousel structure, bringing containers from different horizontal planes to the same removal position sequentially. This dynamic rotation simplifies component retrieval by providing a single access point, eliminating the need for the assembler to reach into multiple horizontal planes, thus improving space utilization without significantly increasing retrieval complexity.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The rotating carousel structure acts as an intermediary mechanism that translates the three-dimensional distribution of containers across multiple horizontal planes into a single two-dimensional removal position, allowing compact vertical arrangement while maintaining simple access through rotational movement.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP3878600B1Assembly work station and method of assembly
Publication Date: 2024.04.03 TECH HOCHSCHULE OSTWESTFALEN LIPPE KORPERSCHAFT DES OFFENTLICHEN RECHTS
  • EP3878600B1 patent drawingFigure 1
  • EP3878600B1 patent drawingFigure 2
  • EP3878600B1 patent drawingFigure 3

AI summary

The invention relates to an assembly workstation for the manual assembly of subassemblies consisting of a plurality of components, comprising a work surface (3) on which the components can be mounted, and a plurality of containers (8) each holding a number of components, which are arranged one above the other and/or next to the other in a reach area, wherein the containers (8) are arranged in at least one carousel (4) rotatable about a vertical axis of rotation (5), wherein a drive unit (6) is provided for rotating the carousel (4), and wherein a control unit (17) is provided for controlling the drive unit (6), wherein the control unit (17) acts on the drive unit (6) in such a way that in each assembly step the container (8) provided with the component required for assembly is accessible to an assembler standing at the work surface (3).