A method of determination of average plane of taps of pipes by triangulation method using an anthropomorphic robot

Lubimyi, N. S.; Chetverikov, B. S.; Chepchurov, M. S.; Odobesko, Ivan

doi:10.1088/1757-899x/709/4/044049

Cited by 3 publications

(1 citation statement)

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“…In order to conduct pattern cutting of one complete billet, special technological operation called "lofting" is carried out. This operation is described in the work [5], it includes application of drawing dimensions for pattern cutting on a loft, i.e. the center of bend circumference is applied and then the half-lines are drawn from this center by required angles using chalk, rope and other measuring tools (such as rulers, protractor, triangles).…”

Section: Introductionmentioning

confidence: 99%

Device for automatic marking of billets for large diameter pipe bends

Lyubimyi¹,

Chepchurov²,

Antsiferov³

et al. 2023

cisisr

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The paper is devoted to description of the device for efficiency rise on conduction of marking operation during manufacture of large-size pipe bends. The existing method of marking applying and possibility of use of universal accessories, which displayed their low efficiency, were analyzed. The existing method of "lofting" is characterized by high labour intensity and low accuracy. Preliminary calculations of fabrication of universal accessories showed that it will be very expensive. The existing problem of low marking accuracy and high labour intensity of this process was solved owing to use of automation equipment. The device for measuring and marking, which is changeable accessories for industrial manipulating robot, was developed and described for this purpose. Architecture of the measuring and marking device and its elementary base, which allows to carry out automatic measuring of pipe bend billet, to conduct the required mathematical calculations and to apply marking, was described. The developed technique for measuring of pipe bend billet, allowing to determine the coordinates of basic points in the coordinate system of manipulating robot, was also described. Automation of transfer of the developed measuring and marking device was implemented via use of the industrial manipulating robot of Kuka Robotics company. Laboratorial example of this device was manufactured using the developed digital model. The experimental data that were presented in this paper displayed that accuracy of the laboratorial device corresponds to accuracy of marking applying via the existing technology and preliminary decrease of labour intensity was achieved about 50 %. The revealed disadvantages of construction of the laboratorial example of device were also described. Finally, the measures for improvement of accuracy of revealing the basic marking points were suggested; they include increase of a number of laser ranging devices and consequent calculation of coordinates on the base of average values of measuring data.

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Section: Introductionmentioning

confidence: 99%

Device for automatic marking of billets for large diameter pipe bends

Lyubimyi¹,

Chepchurov²,

Antsiferov³

et al. 2023

cisisr

View full text Add to dashboard Cite

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Reduction of Differently Directional Vibrations to Asymmetrical by Changing the Ratio of Values Composing the Driving Force

Ryazancev

Герасимов

Brazhnik

2021

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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Vibrating machines play a primary role in the implementation of programs in the construction and road construction kit. The improvement of vibration machines allows to significantly increase the speed of construction and road construction work. The main working unit of a vibrating machine is a vibrating device or vibrator. Currently, in the industry, vibration devices are used with circular or directional, along a certain straight line of vibrations. Further improvement of vibrating machines is carried out in the direction of creating vibration devices with asymmetric vibrations. At present, there are practically no vibrating machines with asymmetric vibrations. These machines allow to distinguish between the "working" process phase and the "idle" phase within each oscillation period. Moreover, the value of the driving force in the phase of performing useful work is several times higher than the value of the driving force in the direction of idling. Therefore, much less work is spent on idling. This allows to get rid of massive elements - overloads that extinguish the magnitude of the driving force in the direction of idling. Therefore, the urgency is to develop a method for converting existing machines with directional vibrations into asymmetric ones, with a given coefficient of asymmetry of the driving force. This makes it possible to reduce the specific indicators of the metal consumption of vibrating machines and the energy consumption of the work performed.

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Physical Model of a Two-Stage Vibration Unit for Generating Asymmetric Oscillations

Ryazancev

Герасимов

Lyubimyy

et al. 2022

Bulletin of Belgorod State Technological University Named After. V. G. Shukhov

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Vibrating devices occupy a large cluster in the construction and road construction industry. The improvement of all vibration machines begins, first of all, with a vibration device, as the main working body of the machine. Basically, vibrators acted as a vibrating device for all road construction equipment. Initially, vibrators with circular vibrations were used, which are not so effective and not always sufficient for performing special work on driving piles into the ground and also extracting them from the soil. Vibratory systems with asymmetric vibrations are increasingly being used in the construction industry. For example, when driving piles, pile drivers are used. Their principle of operation is similar in its action to the operation of a vibration plant with asymmetric vibrations. However, a vibration plant with asymmetric oscillations, when the direction of the driving force is turned in the opposite direction, not down, but up, also makes it possible to extract worn-out piles and sheet piles from the soil. Based on the above, we propose a description, a method for calculating the optimal values of the asymmetry coefficient, driving force and set out the principle of operation of a physical model of a vibration plant with two stages of generating asymmetric vibrations, consisting of standard vibration equipment: the first stage: a table of the brand EV-341 and the second stage : vibrator of directional vibrations brand IV-99B, manufactured by OOO Yaroslavl Plant Krasny Mayak.

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A method of determination of average plane of taps of pipes by triangulation method using an anthropomorphic robot

Cited by 3 publications

References 0 publications

Device for automatic marking of billets for large diameter pipe bends

Device for automatic marking of billets for large diameter pipe bends

Reduction of Differently Directional Vibrations to Asymmetrical by Changing the Ratio of Values Composing the Driving Force

Physical Model of a Two-Stage Vibration Unit for Generating Asymmetric Oscillations

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