An Investigation into the Use of Industrial Robots for Machining Soft and Low Density Materials with HSM Technique

Coelho, Reginaldo Teixeira; Rodella, Hugo H.T.; Martins, Vinícius F.; J., Rossana Barba

doi:10.1590/s1678-58782011000300010

Cited by 12 publications

(7 citation statements)

References 13 publications

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“…Complex surfaces, low and high density materials or even bones in orthopedic surgeries are some research fields that can contribute to their developments. Variations in drilling parameters, such as the increase in the spindle speed proposed by Coelho et al [19], can also improve the performance of the process. Other drilling control strategies able to overcome some of the identified limitations should also be developed, for example the use of an active force control with position feedback.…”

Section: Resultsmentioning

confidence: 99%

Analysis and implementation of a force control strategy for drilling operations with an industrial robot

Rosa

Feiteira

Lopes

et al. 2017

J Braz. Soc. Mech. Sci. Eng.

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In this paper, a theoretical and experimental study to evaluate the use of force control in drilling operations, based on an industrial robot, is presented. A force control strategy embedded in a commercial industrial robot, originally devoted to general machining tasks, is adapted to drilling operations. It is shown that satisfactory results can be achieved in standard industrial applications. Unwanted displacements can occur, resulting in dimensional uncertainty, especially in specimens with very small dimensions. Nevertheless, the implemented force control is able to avoid the risks of failure in the material, and to minimize the operating time in several industrial drilling processes.

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Section: Resultsmentioning

confidence: 99%

Analysis and implementation of a force control strategy for drilling operations with an industrial robot

Rosa

Feiteira

Lopes

et al. 2017

J Braz. Soc. Mech. Sci. Eng.

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“…When a robot is used to perform a machining application the excessive forces between the tool and the workpiece cause deformations in the links of the kinematic chain, affecting the accuracy of the workpiece [5,17]. These deformations will be absorbed by the robot structure, but due to the design of the serial chain and the low torsional stiffness of the actuators, the accuracy and the quality of the process are affected [16].…”

Section: Introductionmentioning

confidence: 99%

Wrench distribution of a cooperative robotic system using a modified scaling factor method

Frantz

Rincon

Simas

et al. 2018

J Braz. Soc. Mech. Sci. Eng.

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Recently, industrial robots are being more and more widely used in a variety of machining applications, such as drilling, milling and grinding because of their flexibility in performing tasks in a relatively small space, and furthermore, at a lower cost. In many cases, the wrench capability of industrial robots is lower than the required, causing in some tasks the saturation of the actuators. The possibility of using two or more robots to perform a given task increases the wrench capability, allowing us to work out in applications which are impossible to solve using only one manipulator. A Cooperative Robotic System (CRS) increases the flexibility in the performance of tasks allowing a more homogeneous distribution of the forces generated during the interaction between the end-effector and the environment. In some cases, the CRS can be composed by robots with different capabilities, and a strategy for wrench distribution must be used. Recent works presented the force capability analysis using a scaling factor method for single serial robots. This paper proposes the use of this scaling factor method in CRS, seeking to obtain a balance of forces between the robots. The proposed method is discussed and graphical results are presented.

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“…Subsequently, Computer Numerical Control (CNC) machines have taken over the responsibility of delivering very fine surface finishes as per the industry needs. Recently, many studies have been carried out in the direction of using industrial robots for the final grinding process, which offers a higher advantage considering their programmability, adaptability and flexibility [2]. The robots can also aid in carrying out the preceding and subsequent handling processes.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of Robotic Surface Finishing Using Abrasive Disc

Padmanabhan¹,

Halil²,

Sun³

et al. 2018

IJMMM

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This study is based on the optimization of process parameters in abrasive robotic finishing process. The effect of certain process parameters on the surface finish of the abraded surface is to be studied using Design of Experiments (DOE) methodology. The finishing or polishing operation is vital in any manufacturing processes. Methods have evolved from hand finishing operations to automatic finishing using CNC machines used currently. This research pertains to the next level of finishing with the usage of a robot. A set of influential parameters that are critical in a grinding operation was chosen as the input parameters. The influence of the selected parameters on the output response, which is the surface roughness, is to be analyzed and investigated. The material removal would be brought about with the help of abrasives in the form of discs. Coated abrasives and non-woven type surface conditioning abrasives in the form of discs were chosen as the cutting tools. Minitab statistical software was used in determining the factors with significant impact on the output response and for optimizing the parameters to obtain the best surface roughness. The expected outcome of this research work will be in the form of experimentally verifying the set of optimized parameters in abrasive robotic finishing operation.Index Terms-Robotic finishing, abrasive disc, design of experiment.

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An Investigation into the Use of Industrial Robots for Machining Soft and Low Density Materials with HSM Technique

Cited by 12 publications

References 13 publications

Analysis and implementation of a force control strategy for drilling operations with an industrial robot

Analysis and implementation of a force control strategy for drilling operations with an industrial robot

Wrench distribution of a cooperative robotic system using a modified scaling factor method

Experimental investigation of Robotic Surface Finishing Using Abrasive Disc

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