Constant Force Control of Centrifugal Pump Housing Robot Grinding Based on Pneumatic Servo System

In order to solve the problem of constant force control in the robot grinding process of a centrifugal pump housing a circular inner surface, this study used the force–position hybrid control mode based on a pneumatic servo system to realize the constant control of grinding force. In this process, t...

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Main Authors: Xueman Su, Yueyue Xie, Lili Sun, Benchi Jiang
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/19/9708
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author Xueman Su
Yueyue Xie
Lili Sun
Benchi Jiang
author_facet Xueman Su
Yueyue Xie
Lili Sun
Benchi Jiang
author_sort Xueman Su
collection DOAJ
description In order to solve the problem of constant force control in the robot grinding process of a centrifugal pump housing a circular inner surface, this study used the force–position hybrid control mode based on a pneumatic servo system to realize the constant control of grinding force. In this process, the manipulator realizes the position and pose control of the end grinding device, and the end grinding device realizes the constant force control in the grinding process. The mathematical model of the pneumatic system is established and linearized by using the gas balance state equation, the adiabatic equation of the isentropic process, and the Sanville flow equation. The balance equation of the cylinder piston was established by using Newton’s second law, the transfer function of the contact force between the grinding device and workpiece was obtained, and the stability of the pneumatic control system was determined by the Hurwitz criterion. The PID algorithm was used to improve the displacement response speed of the system and eliminate the impact and oscillation in the force response. The feasibility, stability, and robustness of the system were verified by simulation experiments. This method has the advantages of simple control, a small amount of calculation, and a fast response, as well as providing a feasible scheme for the popularization and application of robot grinding technology.
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spelling doaj.art-6ac5bd75cd4a4f12bc6068d35c1a46db2023-11-23T19:44:11ZengMDPI AGApplied Sciences2076-34172022-09-011219970810.3390/app12199708Constant Force Control of Centrifugal Pump Housing Robot Grinding Based on Pneumatic Servo SystemXueman Su0Yueyue Xie1Lili Sun2Benchi Jiang3School of Mechanical Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaSchool of Mechanical Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaSchool of Mechanical Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaSchool of Mechanical Engineering, Anhui Polytechnic University, Wuhu 241000, ChinaIn order to solve the problem of constant force control in the robot grinding process of a centrifugal pump housing a circular inner surface, this study used the force–position hybrid control mode based on a pneumatic servo system to realize the constant control of grinding force. In this process, the manipulator realizes the position and pose control of the end grinding device, and the end grinding device realizes the constant force control in the grinding process. The mathematical model of the pneumatic system is established and linearized by using the gas balance state equation, the adiabatic equation of the isentropic process, and the Sanville flow equation. The balance equation of the cylinder piston was established by using Newton’s second law, the transfer function of the contact force between the grinding device and workpiece was obtained, and the stability of the pneumatic control system was determined by the Hurwitz criterion. The PID algorithm was used to improve the displacement response speed of the system and eliminate the impact and oscillation in the force response. The feasibility, stability, and robustness of the system were verified by simulation experiments. This method has the advantages of simple control, a small amount of calculation, and a fast response, as well as providing a feasible scheme for the popularization and application of robot grinding technology.https://www.mdpi.com/2076-3417/12/19/9708grinding robotpneumatic servo systemSanvillecompliance controlforce–position hybrid control
spellingShingle Xueman Su
Yueyue Xie
Lili Sun
Benchi Jiang
Constant Force Control of Centrifugal Pump Housing Robot Grinding Based on Pneumatic Servo System
Applied Sciences
grinding robot
pneumatic servo system
Sanville
compliance control
force–position hybrid control
title Constant Force Control of Centrifugal Pump Housing Robot Grinding Based on Pneumatic Servo System
title_full Constant Force Control of Centrifugal Pump Housing Robot Grinding Based on Pneumatic Servo System
title_fullStr Constant Force Control of Centrifugal Pump Housing Robot Grinding Based on Pneumatic Servo System
title_full_unstemmed Constant Force Control of Centrifugal Pump Housing Robot Grinding Based on Pneumatic Servo System
title_short Constant Force Control of Centrifugal Pump Housing Robot Grinding Based on Pneumatic Servo System
title_sort constant force control of centrifugal pump housing robot grinding based on pneumatic servo system
topic grinding robot
pneumatic servo system
Sanville
compliance control
force–position hybrid control
url https://www.mdpi.com/2076-3417/12/19/9708
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AT yueyuexie constantforcecontrolofcentrifugalpumphousingrobotgrindingbasedonpneumaticservosystem
AT lilisun constantforcecontrolofcentrifugalpumphousingrobotgrindingbasedonpneumaticservosystem
AT benchijiang constantforcecontrolofcentrifugalpumphousingrobotgrindingbasedonpneumaticservosystem