Determining the most probable natural resting orientation of sector shaped parts

Udhayakumar, S.; Mohanram, P. V.; Anand, P. Keerthi; Srinivasan, R.

doi:10.1108/01445151311294649

Cited by 9 publications

(4 citation statements)

References 8 publications

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“…Udhayakumar et al [10] determined the most probable natural resting orientation for a family of sector-shaped parts using drop test and theoretical methods (Centroid solid angle method, stability method and critical solid angle method). The effect of initial orientation of the part during drop and height of drop, on the natural resting orientation, was also studied [11].…”

Section: (4)mentioning

confidence: 99%

Development of Vibratory Part Feeder for Material Handling in Manufacturing Automation: A Survey

Udhayakumar¹

2015

JAMRIS

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In manufacturing automation, material handling plays a significant role. Material handling is the process of loading, placing or manipulating material. The handling of materials is to be performed efficiently, safely, accurately in a timely manner so that the right parts arrive in right quantities to the right locations, at low cost and without damage. The material handling devices are generally designed around standard production machinery and integrated with specially made feeders. In assembly and processing operations, there is a need for the parts to be presented in a preferred orientation, which is achieved using part feeders. A perfect example of feeders is vibratory feeders. Vibratory feeders are commonly used in industries for sorting and orienting parts before assembly. In this paper, a survey of literature regarding design and development of part feeders is discussed. The survey includes sensorless vibratory feeders to vision based flexible part feeders.

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Section: (4)mentioning

confidence: 99%

Development of Vibratory Part Feeder for Material Handling in Manufacturing Automation: A Survey

Udhayakumar¹

2015

JAMRIS

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“…The orientations a, b and c were considered only for drop tests, and for design of traps, orientations 1 to 8 were considered. Udhayakumar et al (2013) found from the theoretical methods and drop tests that orientation "a" was obtained mostly, irrespective of in which initial orientation the part was Preforming/hot moulding 3…”

Section: Part Consideredmentioning

confidence: 99%

Development of an adaptive part feeder for handling sector-shaped parts

Udhayakumar

Mohanram

Yeshwanth

et al. 2014

Assembly Automation

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If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -The purpose of this paper is to discuss a linear vibratory part feeder for handling brake liners, typical sector-shaped components. Part feeders have been used in the industries for a long time to present the parts in a desired orientation. Berretty et al. (1999) discussed a class of mechanical filters that are capable of removing polygonal sections from the track of the feeder which are referred to as traps. The traps eliminate or reorient the parts until they reach the final desired orientation. A part feeder was developed using traps, to reorient the sector-shaped part to desired orientation. The desired orientation was the most probable natural resting orientation. The trap was mounted on a linear vibratory feeder. The adaptive part feeder developed was capable of identifying the size of the incoming part and adjust the trap to accommodate that. This set-up eliminates the use of different traps for different-sized sector-shaped parts and wastage of productive time in changing the traps for different sizes. A regression model was developed to predict the conveying velocity of part on the feeder. Design/methodology/approach -A part feeder was developed using traps, to reorient the sector-shaped part to desired orientation. Acrylic material was found to be suitable for trap compared to aluminium. The adaptive part feeder developed was capable of identifying the size of the incoming part using proximity sensors. Depending on the size of the incoming part, the track width was adjusted dynamically with the help of a stepper motor, rack and pinion arrangement. A regression model was developed to predict the conveying velocity. Findings -Typical brake liners in the size range of 40-60 mm (radius) were considered for developing the adaptive part feeder. Based on performance studies, the acrylic trap was found better than aluminium traps. The appropriate frequency and amplitude of vibration for maximum conveying velocity of the adaptive part feeder were found experimentally. Regression equation was developed to determine the conveying velocity based on input frequency and amplitude. The regression results were found to be in close agreement with the experimental results. Res...

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“…Every component will have many orientations. A drop test is used for finding the possible orientations and most probable resting orientation or favorable orientation [8]. This drop test methodology is shown in figure 3.…”

Section: Drop Testmentioning

confidence: 99%

A Drop Test for Finding the most Probable Resting Orientation of a Part

Suresh¹,

Jagadeesh

Ashoka³

2014

AMM

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The material handling is the art of moving, orienting, packing and storing the part. Industrial feeders are used to facilitate the operations by feeding the parts in a specific quantity and at a perfect orientation. It is a tedious task to obtain a particular part orientation, at the assembly station, in a short lead time. To overcome this problem, part feeders are used to segregate and orient parts prior to packing. The natural resting orientation of the part is the orientation in which the part rests on a horizontal hard surface, when dropped from a height. The most probable natural resting orientation of the part has to be identified which helps in the effective design of feeder and orienting devices. In this paper, an attempt was made to study the effect of initial orientation from different heights on natural resting orientation. Drop test was conducted at different heights with each initial orientation. The favorable orientation of the part (or) the most probable natural resting orientation is identified using drop test. In this work, most probable natural resting orientation of a typical asymmetric component, brake pad, is identified.

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Determining the most probable natural resting orientation of sector shaped parts

Cited by 9 publications

References 8 publications

Development of Vibratory Part Feeder for Material Handling in Manufacturing Automation: A Survey

Development of Vibratory Part Feeder for Material Handling in Manufacturing Automation: A Survey

Development of an adaptive part feeder for handling sector-shaped parts

A Drop Test for Finding the most Probable Resting Orientation of a Part

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