Polishing Robot: Status and Outlook

2009 ◽  
Vol 69-70 ◽  
pp. 311-315 ◽  
Author(s):  
Yue Hua Wan ◽  
Guan Wang
Keyword(s):  
Surface Quality ◽  
Cavity Surface ◽  
The Novel ◽  
Complex Surfaces ◽  
Polishing Process ◽  
Robot System ◽  
Cad Cam ◽  
Polishing Tool ◽  
Polishing Efficiency ◽  
Quality Surface

The polishing robot can serve the polishing work and realize the fully automation for obtaining much higher polishing efficiency and well-proportioned surface quality which attracts many researchers’ attention. In this reviews, the research status of the polishing robot are summarized. Twenty-eight articles which published these years about the polishing robot are introduced in brief. The robot system for complex surfaces polishing, automation of polishing process for a cavity surface, intelligently automated polishing abrasive polishing, the CAD/CAM-based position/force controller for a mold polishing robot and so on are reviewed. More research on an effective gasbag polishing technique based on the novel spinning-inflated-gasbag polishing tool, which can obtain well-proportioned quality surface and high polishing efficiency is a potential one. Investigations of the polishing robot will be helpful for the readers understand the robotic polishing.

Super Polishing Behaviour Investigation of Stainless Steel Optical Lens Moulding Inserts

2009 ◽  
Vol 404 ◽  
pp. 97-102
Author(s):  
Kui Liu ◽  
S.T. Ng ◽  
K.C. Shaw ◽  
G.C. Lim
Keyword(s):  
Surface Roughness ◽  
Stainless Steel ◽  
Surface Quality ◽  
Optical Quality ◽  
Polishing Process ◽  
Optical Lens ◽  
Fine Diamond ◽  
Diamond Paste ◽  
Quality Surface

Super polishing experiments were carried out to investigate the effects of polishing parameters on surface quality of stainless steel lens moulding inserts, and to optimize polishing conditions. Experimental results indicated that optical quality surface of stainless steel lens moulding inserts can be achieved through a two-step polishing process: fast polishing with a soft wood head and coarse diamond paste, and fine polishing with a nylon-covered steel ball head and fine diamond paste. A diameter of 20 mm stainless steel lens moulding insert with a surface roughness Ra of 7.6 nm has been successfully achieved using the two-step super polishing process.

Polishing Process Automation by Industrial Robots with Polished Surface Quality Judged Based on Imaging Processing

2009 ◽  
Vol 3 (2) ◽  
pp. 130-135 ◽  
Author(s):  
Tomoya Ito ◽  
◽  
Koichi Morishige
Keyword(s):  
Image Processing ◽  
Surface Quality ◽  
Personal Computer ◽  
Industrial Robots ◽  
Polished Surface ◽  
Process Automation ◽  
Polishing Process ◽  
Imaging Processing ◽  
Skilled Personnel ◽  
Cad Cam

In polishing-process automation, research is focusing on having industrial robots replace skilled personnel. In judging whether polishing is sufficient, and robot polishing programs using CAD/CAM have been proposed. We propose that polished surface quality the judged based on image processing, with the robot polishing using a personal computer and signal communication.

scholarly journals Modeling and Parameter Optimization of Flexible NC Polishing Vibration of Abrasive Cloth Wheel Based on Sensitivity Analysis

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Xiaojun Lin ◽  
Rui Yang ◽  
Xiaopeng Xin ◽  
Zhaozhao Lei ◽  
Luzhou Sun
Keyword(s):  
Sensitivity Analysis ◽  
Surface Quality ◽  
Process Parameters ◽  
Orthogonal Experiment ◽  
Theoretical Research ◽  
Stable Range ◽  
Polishing Process ◽  
Stability Range ◽  
Polishing Tool

The blisk is a typical cantilever beam structure, which is prone to vibration during the polishing process. This vibration will cause the polishing tool to wear seriously and reduce the surface quality of the blade.In order to control the vibration of polishing process, a method of predicting the RMS (root mean square) value of polishing vibration signal was proposed. Firstly, an empirical model of process parameters for polishing vibration was established by an orthogonal experiment. Then, based on the response surface and sensitivity analysis method, the stability range of the process parameters and the influence on the polishing vibration are obtained. Finally, through the polishing experiment, it is determined that the stable range of each process parameter is reliable. There is no significant vibration during the polishing process. By analyzing the surface texture and surface topography of the blade, the surface quality of the blade meets the requirements. The results showed that the optimal stability ranges of significant parameters through sensitivity analysis are compression depth within [0.6 mm, 0.9 mm], spindle speed within [6000 r/min, 7500 r/min], feed rate within [0.4 mm/min, 0.6 mm/min], and granularity within [400#, 600#]. This study provides a basis for the theoretical research of polishing vibration in the flexible polishing process and the relationship between process parameters and polishing vibration.

Analysis of corrective characteristics of various polishing methods for mid-frequency errors

2013 ◽  
Vol 228 (3) ◽  
pp. 525-534 ◽  
Author(s):  
Ri Pan ◽  
Zhen-Zhong Wang ◽  
Yin-Biao Guo ◽  
Chun-Jin Wang ◽  
Kai Liang
Keyword(s):  
Computer Control ◽  
Low Frequency ◽  
Machining Process ◽  
Polishing Process ◽  
Frequency Spectra ◽  
Bonnet Polishing ◽  
Spatial Frequencies ◽  
Polishing Tool ◽  
Optical Manufacturing ◽  
Polishing Efficiency

The theoretical analysis of corrective characteristics of three kinds of polishing methods for mid-frequency errors was studied, which was aimed to confirm the possibility that computer control optical surfacing and computer control active-lap can be replaced by bonnet polishing in the machining process. The first step was to calculate the removal functions of three kinds of polishing technologies and use fast Fourier transform to figure out the frequency spectrum of each method. After that, according to the frequency spectra, curves of cut-off frequencies related to the working ranges of spatial frequencies errors were obtained. It revealed that the affected scope of spatial frequencies is determined by the polishing method, diameter size of polishing tool and shape of removal function. Moreover, only low-frequency errors could be modified and mid-frequency errors could not be corrected or created by computer control active-lap, and computer control optical surfacing can correct part of the mid-frequency errors and low-frequency errors in the polishing process, but at the same time can produce some new mid-frequency errors; as for bonnet polishing, it can be computer control active-lap-like in smoothing which only modified and created the low-frequency errors or computer control optical surfacing-like which corrected and created the mid-frequency errors in local polishing. Otherwise, the efficiency of bonnet polishing is higher than the other two methods. As a result, seen from the point of correction ability of mid-frequency or polishing efficiency, bonnet polishing could replace computer control active-lap and computer control optical surfacing for finishing two polishing stages by only one tool, which is significant to extending the application of bonnet polishing in optical manufacturing.

Experimental Research on the Robotic Compound Polishing Process with Mixed Magnetic Abrasive

2010 ◽  
Vol 129-131 ◽  
pp. 118-123
Author(s):  
Guang Chao Han ◽  
Ming Sun ◽  
Jing Dong Li
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Polishing Process ◽  
Mould Surface ◽  
The Stability ◽  
Three Body Abrasion ◽  
Three Body ◽  
Polishing Tool ◽  
Polishing Efficiency ◽  
Free Abrasive

The quality and the efficiency of the polishing process are important to the lead time of the rapid tooling. Robotic polishing process with free abrasive is adapted to the finishing of complex mould surface, in which the soft polishing tool is widely used. But the stability and the efficiency of the process should be improved further. According to the moving and grinding characters of the free abrasive, the mixed magnetic abrasive and the minitype electromagnetic field are combined to the robotic polishing process. The mixed magnetic abrasive are made up of magnetic grain and hard abrasive, which can enhance the effective cutting and grinding process of the three-body abrasion under the effect of magnetic field. The robotic compound polishing process with mixed magnetic abrasive is presented in this paper. The experiments are tested to study the distribution of the minitye magnetic field and the polishing efficiency of the complex polishing process. The results show that the polishing efficiency of the process can be improved obviously where the effective working intensity of the electromagnetic field reaches 400Gs.

Flexible Polishing Machine with Dual Grinding Heads for Aeroengine Blade and Blisk

2011 ◽  
Vol 317-319 ◽  
pp. 2454-2460 ◽  
Author(s):  
Ji Hao Duan ◽  
Yao Yao Shi ◽  
Xiao Jun Lin ◽  
Ting Dong
Keyword(s):  
Surface Roughness ◽  
Surface Quality ◽  
Control Method ◽  
Milling Process ◽  
Free Form ◽  
Skilled Workers ◽  
Polishing Process ◽  
Automatic Polishing ◽  
Polishing Machine ◽  
Polishing Tool

The blade and blisk manufacturing includes polishing process when the surface roughness and size requirement of profile are disqualified after milling process. This polishing process is mainly carried out manually by skilled workers or NC machines. However, the existing polishing technology always leads to surface quality instability and inconsistency because of the complex free-form surface of blade and blisk. Therefore, in this paper, based on the research of polishing requirements and methods of blade and blisk, an automatic 6-axis polishing machine was proposed in order to enhance surface quality. And then, a polishing mechanism was designed using flexible technique to make the polishing tool accommodate surface waviness which was produced in milling process. In addition, the working principle and control method of flexible polishing mechanism were studied. Finally, the polishing test results of blade and blisk showed that the profile error was about 0.06mm and the surface roughness was less than Ra0.4 after automatic polishing. Compared with the manual polishing process, the automatic polishing technology not only increased the polishing efficiency and quality stability, but also reduced labor intensity largely.

scholarly journals Surface Quality Improvement by Using a Novel Driving System Design in Single-Side Planetary Abrasive Lapping

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1691 ◽  
Author(s):  
Zhenzhen Chen ◽  
Donghui Wen ◽  
Jianfei Lu ◽  
Jie Yang ◽  
Huan Qi
Keyword(s):  
System Design ◽  
Surface Quality ◽  
Material Removal ◽  
Rotation Speed ◽  
Target Surface ◽  
Speed Ratio ◽  
The Novel ◽  
Particle Trajectories ◽  
Driving System ◽  
Single Side

For the traditional single-side planetary abrasive lapping process particle trajectories passing over the target surface are found to be periodically superposed due to the rational rotation speed ratio of the lapping plate to workpiece that could affect the material removal uniformity and hence its surface quality. This paper reports on a novel driving system design with combination of the tapered roller and contact roller to realize the irrational rotation speed ratio of the lapping plate to workpiece in the single-side planetary abrasive lapping process for the improvement of surface quality. Both of the numerical and experimental investigations have been conducted to evaluate the abrasive lapping performance of the novel driving system. It has been found from the numerical simulation that particle trajectories would theoretically cover the whole target surface if the lapping time is long enough due to their non-periodic characteristics, which can guarantee the uniformity of material removal from the surface of workpiece with relatively high surface quality. The encouraging experimental results underline the potential of the novel driving system design in the application of the single-side planetary abrasive lapping for the improvement of the surface quality in terms of surface roughness and material removal uniformity.

Design of a Multi-Arm Robot for Mandible Reconstruction Surgery

2014 ◽  
Vol 654 ◽  
pp. 187-190 ◽  
Author(s):  
Hong Hua Zhao ◽  
Jian Ying Tian ◽  
Dong Song Li ◽  
Chang Sheng Ai
Keyword(s):  
Mechanical Design ◽  
The Novel ◽  
Robot System ◽  
Mandible Reconstruction ◽  
3D Navigation ◽  
Reconstruction Surgery ◽  
And Control ◽  
Robotic Surgical System ◽  
Surgical System ◽  
Poor Stability

Clinical treatment for mandible defects is Mandible Reconstruction Surgery (MRS) including bone grafts, distraction osteogenesis and bone tissue engineering, however, MRS is operated by doctors without 3D navigation at present which leads to lots of disadvantages such as bad operational control, low positioning accuracy and poor stability. Therefore, a robotic surgical system was designed to assist surgeons on manipulating. For this study, the robot system was given in brief, then mechanical design and control system of the novel three-arm robot.And experiment results in this study show that the robot works stably and accurately. The development of this medical robot system contributes to the promotion and popularization of the MRS in clinics.

scholarly journals Modeling and simulation of reconfigurable systems with applications to the polishing process

2021 ◽  
Author(s):  
Qiang (John) Sun
Keyword(s):  
Software Package ◽  
Topology Design ◽  
Graphic User Interface ◽  
Polishing Process ◽  
Tree Structures ◽  
Tool Paths ◽  
Simulation And Control ◽  
And Control ◽  
Polishing Tool ◽  
Cam Software

This thesis presents a newly developed system for simulation and control of reconfigurable machines and applications in the polishing process. A software package is developed that consists of the Varying Topology Simulation and Control System (VT-Sim) as well as the Polishing CAM (P-CAM) software system. VT-Sim can simulate and control reconfigurable machines of serial or tree structures. It is developed based on mechatronic modules, each of which has a graphic user interface that can be connected to a physical module. The selected modules are linked through a graph-based topology design platform to generate an assembled system together with the equations for simulation and control. P-CAM can simulate and generate CNC codes for the polishing process. The roughness of the polished parts is simulated for selected polishing parameters. Once satisfied, polishing tool paths can be generated and visualized.

scholarly journals Study on Flexible Polishing Force and Polishing Temperature of Flap Disc

2021 ◽  
Author(s):  
De Liu ◽  
Xiaoming Pan ◽  
Zhiyang Gu ◽  
Hui Qiu
Keyword(s):  
Surface Quality ◽  
Process Parameters ◽  
Great Influence ◽  
Contact Length ◽  
Polished Surface ◽  
Polishing Process ◽  
Influence Of Process Parameters ◽  
Polishing Force ◽  
Working Principle ◽  
Cutting Model

Abstract Polishing determines the final surface quality of the aero engine, which have great influence on its working performance and working life. By analyzing the structure and working principle of the flexible self-adaptive polishing platform of the blisk, the abrasive cutting model of the flap disc is established. The theoretical calculation of the effect of elastic deformation during the polishing process on the contact length of flap disc and blisk. The model of polishing force, polishing heat and temperature field during the polishing process of the flap disc are established and analyzed. Single factor method is used to analyze the influence of process parameters on polishing force, polishing temperature, roughness and specific polishing energy. Finally, the polishing test shows that the optimized process parameters improve the polished surface quality and meet the requirements of the blade polishing process.

Sign in / Sign up

Export Citation Format

Share Document