Touch sensing is among the most important sensing capabilities of a human, and the same is true for smart robotics. Current research on tactile sensors is mainly concentrated on electronic skin (e-skin), but e-skin is prone to be easily dirtied, damaged, and disturbed after repeated usage, which greatly limits its practical applications in robotics. Here, by mimicking the way that animals explore the environment using hair-based sensors, a bendable biomimetic whisker mechanoreceptor (BWMR) is designed for robotic tactile sensing. Owing to the advantages of triboelectric nanogenerator technology, the BWMR can convert external mechanical stimuli into electrical signals without a power supply, which is conducive to its widespread applications in robots. Because of the leverage effect of the whisker, the BWMR can distinguish an exciting force of 1.129 μN by amplifying external weak signals, which can be further improved by increasing the whisker length. Real-time sensing is demonstrated using a BWMR, exhibiting its potential for robotic tactile systems.

Biomimetic Hairy Whiskers for Robotic Skin Tactility.

Effect of jig constraint position and pitch on welding deformation

Purpose – The purpose of the following work was to work out the dependency to allow for the determination of the repeatability positioning error value of the robot at any given point in its workspace, without the necessity of conducting time-consuming measurements while routing a precise surface of repeatability positioning. Design/methodology/approach – The presented dependency permits for the possibility to determine, even at the planning phase, the optimal connection point in the workspace, ensuring the best parameters for the process of machine assembly, without needless overestimation of precision of the utilized equipment. To solve the task the sequential quadratic programming (SQP) method implemented in the MATLAB(R) environment was used. To verify the hypothesis of the compatibility of the empirical distribution with the hypothetical distribution of the robot’s positioning error, the Kolmogorov test was used. Findings – In this paper, it has been demonstrated theoretically and experimentally that ...

The repeatability positioning analysis of the industrial robot arm

VFH*TDT (VFH* with Time Dependent Tree)

The article studies, based on the evaluation of the experimental research, effectiveness of independent and combined interaction of selected methods when diagnosing bearing of the mechatronic device in course of 6 months. During this time the general overhaul of the device was carried out, where the measurements, analyses and evaluations were focused on run-in and a shorter after run-in period of the bearing.

Impact of an Excessive Wear of Bearing on the Mechatronic Devices

The article deal about the development in the field of robotic research. The introduction suggests and summarizes actual development in robotics, which is heavily focused on the service and humanoid field in many applications. Next section of contribution is dealed to the development and is referred to its fundamental properties, which has current industrial robots.

/pdf/the-view-to-the-current-state-of-robotics-2ld5azjtd6.pdf

The View to the Current State of Robotics

The article describes the methodological approach to design of welding fixtures for robotic cells based on principles of modularity. In further states the basic preparation components, their functions and possible board types in terms of shape and dimensional characteristics. The proposed methodology was tested for robotic training workstation with robot KUKA for spot welding of car bodies.

https://www.degruyter.com/downloadpdf/j/mecslo.2009.13.issue-3/v10147-010-0044-y/v10147-010-0044-y.xml

Design of the Welding Fixture for the Robotic Stations for Spot Welding Based on the Modular Concept

The article describes the concept of a locomotive construction for a robot moving along an urbanized or unstructured natural terrain. The most suitable variant was the development of a hybrid leg-w...

Conceptual design of a leg-wheel chassis for rescue operations:

In project implementation by the Centre for management of technical, environmental and humane risks research for permanent development of production and products in machinery industry, specifically for the activity 3.2. Which deals with automation and robotization of production systems, the main target is increasing degree of automation with focus on intelligent manipulation on 3D basis. This target is being applied by large scale use of robots for various manipulation and technological application. The solution is based on two camera sensors which enable intelligent manipulation on 3D basis. For this purpose a sensor and software for object recognition have been specified. The solution will be applied and verified on KUKA robot for "pick and place" cases.

/pdf/increasing-degree-of-automation-of-production-systems-based-1t4qbuo8c3.pdf

Increasing Degree of Automation of Production Systems Based on Intelligent Manipulation

Installing robots in small businesses is primarily dependent on the ratio of money spent to achieve profit. In addition, from consumer pressure on the production, quality and low cost, the increasi...

https://journals.sagepub.com/doi/pdf/10.1177/1729881420904209

Verification of the UR5 robot’s properties after a crash caused by a fall of a transferred load from a crane:

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