scholarly journals Design and analysis for manipulator fixture applications

2018 ◽  
Vol 185 ◽  
pp. 00031
Author(s):  
Ming-Chu Hsieh ◽  
Zhen-Hong Khong
Keyword(s):  
Pneumatic Cylinder ◽  
Main Body ◽  
Connecting Rod ◽  
Innovative Design ◽  
Overall Design ◽  
Manipulator Arm ◽  
Gear Mechanism ◽  
Manipulator Design ◽  
Automatic Machinery ◽  
Object Of Study

The manipulators arms are the most important components in automatic machinery and equipment. These arms must conform to product requirements and match important accessory devices such as clamping jaw so that the entire process operates properly. Therefore the most important issue is that the manipulator arm has only one clamping jaw, followed by other issues such as welding and related features. In this research the manipulator arm of automated machinery with attached equipment was optimized, and the design serves as an object of study for multifunctional applications. This research emphasizes on customized manipulator design to create products with distinguished styles and characteristics, and serve as a basis for an improvement on innovative design. Manipulator arms from different manufacturers with various head-disc size and screw-hole locations were investigated, and concept of human palm was incorporated in the design to create a mechanical fixture that can be fitted into the arm. Overall design including main body of the manipulator, pneumatic cylinder set, gear and connecting rod combination, planet gear set, and linkage rods and fixture. These components were combined to offer the functions of the manipulator. Commercial software package, SolidWorks, was used to construct the model for the manipulator arm, and CAE analysis was implemented to identify the stress on the structure and possible interferences of the mobile components. Stress analysis was also performed on the gear set under pneumatic loading to ensure that the gear mechanism has a sufficient strength. The results of this study showed that an arc shaped manipulator body is the most easily handled during installation and most effectively controlled during operation. The simple profiles of the manipulator also lower the space required for storage. The design of the gear set and integrated application of the shaft helps prevent loosening of gear and shaft during operation. In this study, a manipulator was designed with three different functions, each fixture is powered by an isolated pneumatic cylinder, and this mechanism can be manipulated to form o0to o180clamping action in accordance with requirements of the task. The methods and results of this study serve as a reference for machinery industry to achieve high quality product, and also as a basis for innovative design.

Innovative Design of the Wind-Driven Efficient Feeding Mechanism

2013 ◽  
Vol 274 ◽  
pp. 290-293
Author(s):  
Bao Gang Wang ◽  
Qi Hui Song ◽  
Guang Chi Xu
Keyword(s):  
Energy Conversion ◽  
High Efficiency ◽  
Transmission Mechanism ◽  
Linkage Mechanism ◽  
Innovative Design ◽  
Feeding Mechanism ◽  
Gear Mechanism ◽  
Actual Operation ◽  
The Common ◽  
Material Transportation

A wind-driven feeding mechanism of high efficiency is designed according to the TRIZ theory and its mechanical structure innovative design based on the principle of energy conversion. It aims at delivering of small granular, cylindrical, flakes and other materials in machinery, pharmaceuticals, electronics and other industries by transmission mechanism such as the typical gear mechanism and linkage mechanism. The prototype is produced combined with the specific parameters of the common materials. The modular innovative design is adopted, including the transmission module, driver module and material feeding module. By the inspection of the actual operation, each design module of the produced prototype is stable and reliable. At the same time the effect of material transportation is good.

scholarly journals Research on innovative design of a new rope knotter

2019 ◽  
Vol 11 (9) ◽  
pp. 168781401987832
Author(s):  
Yanmei Meng ◽  
Hao Chen ◽  
Yuan Liang ◽  
Johnny Qin ◽  
Qinchuan Zhao ◽  
...  
Keyword(s):  
Dynamic Analysis ◽  
Success Rate ◽  
Manufacturing Process ◽  
Complex Structure ◽  
Large Angle ◽  
Innovative Design ◽  
Design And Manufacturing ◽  
Physical Tests ◽  
Gear Mechanism ◽  
Cycle Diagram

Aiming at the complex structure and high manufacturing process requirements of traditional knotter, this article proposes a new rope knotting method. Based on the knotting method, a knotter is designed to use a new mechanism which is made up of two new incomplete gear mechanisms to drive rope clamping mechanism and rope hooking and griping mechanism. First, a kinematic cycle diagram of the knotter is determined, and the structures of each key mechanism are designed. Then, a virtual prototype of the knotter is established by Unigraphics and imported into Automated Dynamic Analysis of Mechanical Systems to analyze the kinematic of each key mechanism. The success rate is 98.4% through 500 physical tests on the physical model of the knotter. The results indicate that the knotting method is reliable. The knotter can meet the requirements of structure, posture, and coordination during knotting process. The new knotter has no separate mechanism for cutting rope and tripping out of the rope buckle. Therefore, the structure is simplified and reduces the design and manufacturing difficulties. Furthermore, the new incomplete gear mechanism solves the problem that in the conventional incomplete gear mechanism, the driven gear can swing at a large angle or even cannot be locked in the case when the locking arc of the passive gear is too short.

The Innovative Design of Airliner Front Landing Gear Mechanism

2012 ◽  
Vol 433-440 ◽  
pp. 1519-1522 ◽  
Author(s):  
Wan Chun Zhou ◽  
Jing Wang
Keyword(s):  
Topological Structure ◽  
Mechanical Device ◽  
Special Design ◽  
Design Constraints ◽  
Innovative Design ◽  
Kinematic Chains ◽  
Original Product ◽  
Gear Mechanism ◽  
Number Synthesis ◽  
Synthesis Of Mechanism

On the basis of the existing mechanism, we can induce the topological structure of the original mechanism. By using the number synthesis of mechanism, we can find the link assortment which can satisfy topological structure of the original mechanism. By using permutation, we can obtain the generalized kinematic chains. According to the special design constraints, after appointing each link and kinematic pair, we can gain all the suitable feasible specialized chains. Then making a converse reasoning based on the generalized principle, we will finally integrate the schematic diagram of mechanism suitable for our design purpose. Therefore, if we make a kinematic and a dynamic analysis on mechanism based on this, after structural designing, we can find a new mechanical device whose performance is up to or even superior to that of the original product.

An innovative design on mixed harmonic gear mechanism

2009 ◽  
Vol 3 (4) ◽  
pp. 309
Author(s):  
Ping Yang ◽  
Bin Yang ◽  
Huijun Yi ◽  
Yinfa Yang
Keyword(s):  
Innovative Design ◽  
Gear Mechanism

The Design of Open-Loop Manipulator Arms With Decoupled and Configuration-Invariant Inertia Tensors

1987 ◽  
Vol 109 (3) ◽  
pp. 268-275 ◽  
Author(s):  
Kamal Youcef-Toumi ◽  
Haruhiko Asada
Keyword(s):  
Design Theory ◽  
Necessary Conditions ◽  
Diagonal Form ◽  
Kinematic Structure ◽  
Dynamic Complexity ◽  
Inertia Matrix ◽  
Mass Properties ◽  
Manipulator Arm ◽  
Manipulator Design ◽  
Reduced Dynamic

A manipulator design theory for reduced dynamic complexity is presented. The kinematic structure and mass distribution of a manipulator arm are designed so that the inertia matrix in the equation of motion becomes diagonal and/or invariant for an arbitrary arm configuration. For the decoupled and invariant inertia matrix, the system can be treated as a linear, single-input, single-output system with constant parameters. Consequently, control of the manipulator arm is simplified, and more importantly, the reduced dynamic complexity permits improved control performance. First, the problem of designing such an arm with a decoupled and/or configuration-invariant inertia matrix is defined. The inertia matrix is then analyzed in relation to the kinematic structure and mass properties of the arm links. Necessary conditions for a decoupled and/or configuration-invariant manipulator inertia matrix are then obtained. Using the necessary conditions, the kinematic structure and mass properties are found which reduce the inertia matrix to a constant diagonal form. Possible arm designs for decoupled and/or invariant inertia matrices are then determined for 2 and 3 degree-of-freedom manipulators.

Personal image: introduction to legal discourse

2021 ◽  
pp. 117-123
Author(s):  
Karolina Karbovska
Keyword(s):  
Civil Rights ◽  
Public Relations ◽  
Intangible Assets ◽  
Point Of View ◽  
Main Body ◽  
Communication Tool ◽  
Personal Brand ◽  
Marketing Tool ◽  
Object Of Study ◽  
The Right

Problem setting. Intensive development of public relations, digitalization and commercialization of new spheres of life, growing popularity of the media sphere necessitates civil protection not only the privacy of individuals who are popular and recognizable, but also their right to publicity, which is directly related to lawful use of intangible benefits that belong to a person and shape his image. Analysis of recent researches and publications. Among the world's most prominent researchers of image as a social phenomenon are R. Burns, I. Hoffman, W. James, J. Rotter, L. Holl, and others. Domestic studies of image are represented by the works of Atamanskaya K.I., Barny N.V., Krynychna I.P., Lavrentiya A.S., Palekha Y.I., Panteleychuk I.V., Fedoriva T.V., Shcherbak N. V. and other representatives of various social sciences. The purpose of the article is to outline general scientific approaches to defining the concept of image, distinguishing it from related concepts and identifying promising areas of civil law research of image. Article’s main body. The concept of image is more often used in the information space, which leads to an increase in public demand for the legal definition of this concept and the settlement of issues related to the protection of the image of both individuals and legal entities. Image is the object of study of various branches of social science and studied by them in a variety of manifestations and aspects. Based on the analysis of a number of approaches to image definition by representatives of various sciences, it can be concluded that image considered as: (a) a communication tool that is a manipulative technology to influence public consciousness; (b) marketing tool to promote goods, works and services; (c) the external and psychological image of the public person through which society identifies him as an individual. Considering the image of an individual from the standpoint of a systematic approach, in particular a multilevel set of different components - personal intangible assets, we believe that reputation is an element of the image of an individual and should be considered as its structural component. From the standpoint of interdisciplinary research, the concepts of image and personal brand should be considered as synonymous, from a legal point of view, despite their similarity, they are formed by different objects of civil rights, although within the protection of the individual's right to protection and personal brand. Conclusions and prospects for the development. In view of the above, it can be concluded that the image of an individual is a complex, interdisciplinary concept. It is a holistic, stable image of a particular person that exists in society, and is characterized by the indivisibility of its external and internal characteristics, the corresponding personal, professional and social qualities. The constituent legal elements of the image are (a) personal intangible assets: the right to a name, the right to an image, the right to individuality, personal reputation; (b) objects of intellectual property rights: means of personalization: personal brand, trademark, trade name and others.

Hypocycloid Gear Mechanism Versus Slider-Crank Mechanism in Engines

2019 ◽  
Author(s):  
Mostafa A. ElBahloul ◽  
ELsayed S. Aziz ◽  
Constantin Chassapis
Keyword(s):  
Gas Flow ◽  
Combustion Engine ◽  
Gear Train ◽  
Cylinder Wall ◽  
Power Losses ◽  
Connecting Rod ◽  
Combustion Gas ◽  
Standard Design ◽  
Gear Mechanism ◽  
Crank Mechanism

Abstract This effort investigates the feasibility of using the Hypocycloid Gear Mechanism (HGM) as an alternative to the conventional slider-crank mechanism for Internal Combustion Engine (ICE) applications. Engines incorporating the conventional slider-crank mechanism are subjected to high frictional power losses mainly due to the piston-rod assembly and the associated complex motion of the connecting rod. The unique HGM engine provides the means for the piston-rod assembly to reciprocate in a straight-line motion along the cylinder axis, thus eliminating the piston side-thrusting into the cylinder wall. To analyze the performance advantages of the HGM engine, a Matlab/Simulink model is developed for the simulation of a single-cylinder HGM engine from the throttle to the crankshaft output. The model integrates several sub-models for combustion, gas flow, heat transfer, and friction power loss of the internal gear train meshes, rolling bearings, and sliding bearings. The design of the planetary crank gearing system to satisfy the design specifications of ICE, has been derived using standard design procedures provided by AGMA. Calculated efficiency and power diagrams are plotted and compared with the performance of conventional engines in the literature. The results show that the HGM can satisfy modern ICE design requirements, achieve better engine performance characteristics, and minimize the frictional power losses. The HGM engine achieved lower frictional power losses by an average 33% of the conventional engine losses while its mechanical efficiency is enhanced by up to +24% with respect to the conventional engine.

scholarly journals Evaluation of long-term stability of monolithic 3D-printed robotic manipulator structures for minimally invasive surgery

2020 ◽  
Vol 15 (10) ◽  
pp. 1693-1697
Author(s):  
Yannick S. Krieger ◽  
Daniel Ostler ◽  
Korbinian Rzepka ◽  
Alexander Meining ◽  
Hubertus Feussner ◽  
...  
Keyword(s):  
Minimally Invasive Surgery ◽  
Minimally Invasive ◽  
Invasive Surgery ◽  
Standard Instrument ◽  
Term Stability ◽  
Long Term Stability ◽  
Manipulator Arm ◽  
3D Printed ◽  
Manipulator Design

Abstract Purpose In the era of patient-centered medicine, clinical procedures, tools and instruments should be individually adapted to the patient. In this context, the presented 3D-printed Single-Port Overtube Manipulator System follows the aims to provide patient- and task-specific disposable manipulators for minimally invasive surgery. In a first experiment, the robustness of the monolithic flexure hinge structures in use as robotic manipulators will be investigated. Methods Customizable monolithic manipulator structures designed by means of an automated design process and manufactured with selective laser sintering were investigated with regard to long-term stability in an endurance test. Therefore, a bare manipulator arm, an arm equipped with a standard instrument and finally loaded with an additional load of 0.5 N were evaluated by continuously following a trajectory within the workspace of the manipulator arms over a period of 90 min. Results The unloaded manipulator as well as the manipulator arm equipped with a standard instrument showed a sufficient reproducibility (deviation of 1.5 mm and 2.5 mm, respectively, on average) with regard to an application as telemanipulated master–slave surgical robotic system. The 3D-printed manipulators showed no damage and maintained integrity after the experiment. Conclusion It has been shown that 3D-printed manipulators in principle are suitable for use as disposable surgical manipulator systems and offer a long-term stability over at least 90 min. The developed manipulator design shows great potential for the production of patient-, task- and user-specific robot systems. However, the manipulator geometries as well as the control strategies still show room for improvements.

Dynamics Analysis of Manipulator in the Hot Line

2014 ◽  
Vol 989-994 ◽  
pp. 3079-3083 ◽  
Author(s):  
Dan Dan Zhang
Keyword(s):  
High Voltage ◽  
Transmission Lines ◽  
3D Model ◽  
Dynamics Analysis ◽  
Kinematics Analysis ◽  
Connecting Rod ◽  
Kinematical Analysis ◽  
Long Time ◽  
Manipulator Arm ◽  
High Voltage Transmission

The high voltage transmission lines exposed for a long time are often broken down, thus, The manipulator arm of robot in the hot line was designed, The design is reasonable through kinematical analysis. First, make sure of the connecting rod coordinates and the connecting rod's D-H parameters. Matlab was used to draw 3D model of manipulator. Use functions in the Robotics Toolbox to solve kinematics analysis.

Four Freedom Pneumatic Manipulator Design

2014 ◽  
Vol 556-562 ◽  
pp. 1129-1132
Author(s):  
Gao Hua Wang ◽  
Chao Kun Wei ◽  
Zhen Zhen Sun
Keyword(s):  
Basic Principle ◽  
Overall Design ◽  
Actual Production ◽  
Loading And Unloading ◽  
Manipulator Design ◽  
Safety Operation ◽  
Human Injury

Loading and unloading material is inevitable in actual production,but the process is fussy and human injury is often happened.In this paper, a kind of four freedom pneumatic manipulator which designed can provide a convenient, comfortable, safety operation for workman. The paper will proceed the overall design , introduce the composition and basic principle ,expound the design thought .These will provide a reliable theoretical for manipulator production.

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