scholarly journals Mechatronic Re-Design of a Manual Assembly Workstation into a Collaborative One for Wire Harness Assemblies

Robotics ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 43
Author(s):  
Ilaria Palomba ◽  
Luca Gualtieri ◽  
Rafael Rojas ◽  
Erwin Rauch ◽  
Renato Vidoni ◽  
...  

Nowadays, the wire harness assembly process is still manually performed due to the process complexity and product variability (e.g., wires of different kind, size and length). The Wire cobots project, in which this work was conceived, aims at improving the current state-of-art assembly process by introducing in it collaborative robotics. A shared workstation exploiting human abilities and machine strengths was developed to assembly automotive wire harness by means of insulated tape for a real industrial case. In the new workstation, the human deals with the complex task of wire handling, while the robot performs the repetitive and strenuous taping operations. Such a task allocation together with the workstation redesign allow for an improvement of the operator’s well-being in terms of postural conditions and for an increase of the production efficiency. In this paper, the mechanical and mechatronic design, as well as the realization and validation of this new collaborative workstation are presented and discussed.

2017 ◽  
Vol 871 ◽  
pp. 262-266
Author(s):  
Paul Heisler ◽  
Stefan Hoessle ◽  
Jörg Franke

In the automotive industry, the assembly of wiring harnesses is done mostly manually. This leads to high labour costs as well as a high number of defects. In order to minimize these disadvantages, both industry and research made huge efforts in recent decades to increase the level of automation in the assembly of wiring harness modules. The fully automated crimping and blockloading machine e.g. Komax Zeta 656, is already successfully used in the industry as a machine for the automated assembly of small wiring harnesses. But still, there is a great potential to increase efficiency and quality in the assembly of wiring harnesses. This paper presents a newly developed machine concept for the fully automated assembly of wiring harnesses. It is shown that the new system can provide higher production efficiency compared to both the competitive systems and manual assembly. The presented concept also helps saving resources as it uses the standard crimping machine as e.g. Komax Alpha 355 as a basis which is already present in many wiring harness factories. To set up the presented mounting machine the Komax Alpha has not to be fully replaced, but only to be extended by a few components.


Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3659
Author(s):  
Andrzej Szajna ◽  
Mariusz Kostrzewski ◽  
Krzysztof Ciebiera ◽  
Roman Stryjski ◽  
Waldemar Woźniak

Industry 4.0, a term invented by Wolfgang Wahlster in Germany, is celebrating its 10th anniversary in 2021. Still, the digitalization of the production environment is one of the hottest topics in the computer science departments at universities and companies. Optimization of production processes or redefinition of the production concepts is meaningful in light of the current industrial and research agendas. Both the mentioned optimization and redefinition are considered in numerous subtopics and technologies. One of the most significant topics in these areas is the newest findings and applications of artificial intelligence (AI)—machine learning (ML) and deep convolutional neural networks (DCNNs). The authors invented a method and device that supports the wiring assembly in the control cabinet production process, namely, the Wire Label Reader (WLR) industrial system. The implementation of this device was a big technical challenge. It required very advanced IT technologies, ML, image recognition, and DCNN as well. This paper focuses on an in-depth description of the underlying methodology of this device, its construction, and foremostly, the assembly industrial processes, through which this device is implemented. It was significant for the authors to validate the usability of the device within mentioned production processes and to express both advantages and challenges connected to such assembly process development. The authors noted that in-depth studies connected to the effects of AI applications in the presented area are sparse. Further, the idea of the WLR device is presented while also including results of DCNN training (with recognition results of 99.7% although challenging conditions), the device implementation in the wire assembly production process, and its users’ opinions. The authors have analyzed how the WLR affects assembly process time and energy consumption, and accordingly, the advantages and challenges of the device. Among the most impressive results of the WLR implementation in the assembly process one can be mentioned—the device ensures significant process time reduction regardless of the number of characters printed on a wire.


Sensors ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 2649 ◽  
Author(s):  
Cassim Ladha ◽  
Christy Hoffman

The ability to objectively measure episodes of rest has clear application for assessing health and well-being. Accelerometers afford a sensitive platform for doing so and have demonstrated their use in many human-based trials and interventions. Current state of the art methods for predicting sleep from accelerometer signals are either based on posture or low movement. While both have proven to be sensitive in humans, the methods do not directly transfer well to dogs, possibly because dogs are commonly alert but physically inactive when recumbent. In this paper, we combine a previously validated low-movement algorithm developed for humans and a posture-based algorithm developed for dogs. The hybrid approach was tested on 12 healthy dogs of varying breeds and sizes in their homes. The approach predicted state of rest with a mean accuracy of 0.86 (SD = 0.08). Furthermore, when a dog was in a resting state, the method was able to distinguish between head up and head down posture with a mean accuracy of 0.90 (SD = 0.08). This approach can be applied in a variety of contexts to assess how factors, such as changes in housing conditions or medication, may influence a dog’s resting patterns.


2021 ◽  
Author(s):  
◽  
Chelsea Kershaw

<p>Aotearoa New Zealand is a society with inequality deeply embedded in its culture, and this translates to the health of vulnerable members of the community. In its current state, healthcare infrastructure and rehabilitative landscapes are isolated from one another, creating physical and mental barriers for achieving well-being. Therapeutic landscape research suggests outdoor spaces can facilitate rehabilitative healing, community support, and self-empowerment. This form of preventive and rehabilitative health may bridge the gap between treatment at the institutional level, and day-to-day living, to better support the well-being, of people in transition.  The under-utilized interface between the residential landscape and Kenepuru Community Hospital in Porirua is used as a design case study, for testing how hospital infrastructure, residential housing, and therapeutic landscapes may coexist for mutually beneficial health and well-being outcomes. Results suggest that careful design of the interstitial spaces bridging housing with healthcare can form an important service for the well-being of vulnerable people.</p>


2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S249-S250
Author(s):  
Mengzhao Yan

Abstract Home modification has been perceived as an effective method to make current dwelling units more age-friendly and improve the well-being of older adults. In China, a country with an increasing number of older adults, home modification research is still in its infancy. By typing “适老化改造” (home modification for older adults) as a keyword for the theme of articles in China National Knowledge Infrastructure (CNKI), the most authoritative and comprehensive database for academic publication in China, only 158 related papers are found to be published until the end of 2017, among which the first was published in 2009. With an aim to determine the current state of home modification research in older adults and to determine what could be done to facilitate sufficient research on this topic, the present study conducted a systematical review of the 158 papers about home modification for older adults published in China between 2009 and 2017. Based on the systematical review, the present paper identifies four barriers to conducting this line of research and puts forward six practical suggestions for future research studies in this area so as to contribute to building age-friendly dwellings and promoting age-friendly China.


2014 ◽  
Vol 556-562 ◽  
pp. 1852-1855 ◽  
Author(s):  
Tian Hao Wang ◽  
Yin Han Gao ◽  
Kai Yu Yang ◽  
Jun Dong Zhang ◽  
Le Gao ◽  
...  

In the actual situation, because of the shock of automobile in the movement process and the wire harness in undulating tube placement is random, leading to the relative position of the wire harness is not fixed, Thus lead to crosstalk value has certain dynamic range. In this paper, obtained the unit mutual inductance and mutual capacitance of wire with insulation layer using mirror image method, simulation and prediction of crosstalk dynamic interval by statistical simulation method, obtain harness near end crosstalk changes range within 3dB at a confidence level of 80%. This provides a reference for EMC design of automotive wiring harness.


2019 ◽  
Vol 272 (2) ◽  
pp. 712-724 ◽  
Author(s):  
Marie-Sklaerder Vié ◽  
Nicolas Zufferey ◽  
Jean-François Cordeau
Keyword(s):  

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Katarína Senderská ◽  
Albert Mareš ◽  
Emil Evin

Abstract Manual assembly performed at assembly workstations nowadays still has a unique place in different kinds of production. To increase the productivity and quality of manual assembly it is necessary to analyse the existing workplaces and find ways to improve and streamline work done at these workplaces. The article deals with the design of a model for on-line analysis of a manual assembly process. The proposed model is based on the use of sensors or the so-called button-box and the use of software for recording and evaluating data. Based on the obtained data it is then possible to evaluate the time characteristics of the assembly process, aswell as to find sources of delays and mistakes and then take appropriate action to correct them.


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