Review on Research Progress of Flexible Soft Manipulator

Liqiang      Tang; Baocheng      Xie

doi:10.2174/1872212117666220827151639

Abstract

Background: Manipulator is widely used in the manufacturing industry because it can imitate some movements of human hands, and replace human hands to complete some high-risk and heavy labor or carry out man-machine cooperation. Flexible soft manipulator made of flexible materials is a new field of the manipulator. Investigation of the material and driving mode of the flexible soft manipulator is helpful to improve the flexibility and force position control when grasping objects. Therefore, researchers pay more and more attention to the development trend of the flexible soft manipulator.

Objective: In order to optimize the driving mode and materials of a flexible soft manipulator, pneumatic- driven flexible soft manipulator and variable stiffness flexible soft manipulator are developed.

Methods: This paper summarizes the selection, classification and introduction of patents related to pneumatic drive and variable stiffness in the flexible soft manipulator.

Results: Through the investigation of various patents on flexible soft manipulators, the main existing problems in flexible soft manipulators, such as small grasping range and insufficient driving force, are summarized and analyzed. In addition, the development trend of flexible soft manipulators is also discussed.

Conclusion: The optimization of the driving mode and materials of the manipulator is beneficial to improve the driving force and grasping force. More related patents will be invented in the future.

Keywords: Flexible soft manipulator, soft robot, flexible material, pneumatic drive, variable stiffness, driving mode.

Graphical Abstract

[1]
S.L. Liu, "On the design of industrial manipulator", J. Mech. Electr. Eng. Technol., vol. 40, no. 7, pp. 45-46, 2011.
[2]
L. Wang,  and F. Iida, "Deformation in soft-matter robotics: A categorization and quantitative characterization", IEEE Robot. Autom. Mag., vol. 22, no. 3, pp. 125-139, 2015.
 [http://dx.doi.org/10.1109/MRA.2015.2448277]
[3]
N. Elango,  and A. Faudzi, "Investigations on soft materials for soft robot manipulations", Int. J. Adv. Manuf. Technol., vol. 80, no. 5-8, pp. 1027-1037, 2015.
 [http://dx.doi.org/10.1007/s00170-015-7085-3]
[4]
J. Hughes, U. Culha,  and F. Giardina, "Soft manipulators and grippers", J. Front. Robot. AI, vol. 3, p. 69, 2016.
[5]
R. Bogue, "Flexible and soft robotic grippers: The key to new markets?", Ind. Rob., vol. 43, no. 3, pp. 258-263, 2016.
 [http://dx.doi.org/10.1108/IR-01-2016-0027]
[6]
R. Pfeifer, M. Lungarella,  and F. Iida, "The challenges ahead for bio-inspired ‘soft’ robotics", Commun. ACM, vol. 55, no. 11, pp. 76-87, 2012.
 [http://dx.doi.org/10.1145/2366316.2366335]
[7]
C. Majidi, "Soft robotics: A perspective-current trends and prospects for the future", Soft Robot., vol. 1, no. 1, pp. 5-11, 2014.
 [http://dx.doi.org/10.1089/soro.2013.0001]
[8]
Y. Xiao, Design and experimental study of pneumatic soft manipulator., Southeast University Learn: Nanjing, 2016.
[9]
X. Li, S.X. Fang,  and S. Chen, "Research status and application of software manipulator", J. Manufact. Autom., vol. 41, no. 5, pp. 85-92, 2019.
[10]
G.J. Bao, Y.Q. Zhang,  and Z.G. Xu, "“Summary of research on pneumatic drive structure in soft robot”, J. High-tech", Commun., vol. 59, no. 5, pp. 467-479, 2019.
[11]
D.O. Cagdas,  and R. Daniela, A modular approach to soft robots. The Fourth IEEE RAS/EMBS International Conference on Biomedical Robotics and Biomechatronics, Roma, Italy, 2012, pp. 24-27.
[12]
T. Wang, X.X. Chen,  and W. Qin, "A novel adaptive control for reaching movements of an anthropomorphic arm driven by pneumatic artificial muscles", J. Applied Soft Computing, vol. 83, no. 10, pp. 123-126, 2019.
 [http://dx.doi.org/10.1016/j.cam.2019.02.015]
[13]
K. Bhabrn,  and S.K. Dwivedy, "Dynamic analysis of Pneumatic Artifical Muscle (PAM) actuator for rehabilitation with principal parametric resonance condition", J. Nonlinear Dynamics, vol. 97, no. 9, pp. 2271-2289, 2019.
[14]
J. Right, Preparation and mechanical properties of fiber reinforced 3D printing composites., Zhejiang Sci-Tech University: Hangzhou, 2016.
[15]
M. Wang, Y.F. Hao,  and X.B. Yang, "Soft robot: Structure, drive, sensing and control", Jixie Gongcheng Xuebao, vol. 53, no. 13, pp. 1-13, 2017.
 [http://dx.doi.org/10.3901/JME.2017.13.001]
[16]
Q. Zheng, M. Yang, X. Tian, N. Jiang,  and D. Wang, "A full stage data augmentation method in deep convolutional neural network for natural image classification", Discrete Dyn. Nat. Soc., vol. 2020, pp. 1-11, 2020.
 [http://dx.doi.org/10.1155/2020/4706576]
[17]
Q. Zheng, P. Zhao, Y. Li, H. Wang,  and Y. Yang, "Spectrum interference-based two-level data augmentation method in deep learning for automatic modulation classification", Neural Comput. Appl., vol. 33, no. 13, pp. 7723-7745, 2020.
 [http://dx.doi.org/10.1007/s00521-020-05514-1]
[18]
Q. Zheng, P. Zhao, D. Zhang,  and H. Wang, "MR-DCAE: Manifold regularization-based deep convolutional autoencoder for unauthorized broadcasting identification", Int. J. Intell. Syst., vol. 36, no. 12, pp. 7204-7238, 2021.
 [http://dx.doi.org/10.1002/int.22586]
[19]
B. Jin, L. Cruz,  and N. Goncalves, "Deep facial diagnosis: Deep transfer learning from face recognition to facial diagnosis", IEEE Access, vol. 8, pp. 123649-123661, 2020.
 [http://dx.doi.org/10.1109/ACCESS.2020.3005687]
[20]
Q. Zheng, M. Yang, J. Yang, Q. Zhang,  and X. Zhang, "Improvement of generalization ability of deep CNN via implicit regularization in two-stage training process", IEEE Access, vol. 6, pp. 15844-15869, 2018.
 [http://dx.doi.org/10.1109/ACCESS.2018.2810849]
[21]
C. Laschi,  and M. Cianchetti, "Soft robotics: Newperspectives for robot bodyware and control", J. Front. Bioeng. Biotechnol., 2014.
 [http://dx.doi.org/10.3389/fbioe.2014.00003]
[22]
M.R. Cutkosky, Robotic grasping and fine manipulation., Kluwer Academic Publishers: Norwell, 1985.
[23]
M.F. Zhang, "A flexible manipulator", CN Patent 211639955 U, 2020.
[24]
L.P. Liu, B. Lin, M. Jiang, S.Y. Lin,  and H.D. Pu, "Flexible manipulator claw device", CN Patent 211517532 U, 2020.
[25]
W.D. Yan,  and S.S. Liu, "A flexible manipulator", CN Patent 211193943 U, 2020.
[26]
H. Yi, X.L. Zhao, R. Bao, T.T. Min,  and W. Fu, "A flexible manipulator", CN Patent 210081760 U, 2020.
[27]
L.T. Qin, K.Y. Wang,  and H. You, "A flexible manipulator", CN Patent 209224090 U, 2019.
[28]
G.M. Chen, J.H. Luo, Z.H. Yang, Y. Wu,  and A.Q. Wang, "A kind of soft manipulator", CN Patent 110625639 B, 2021.
[29]
X.L. Zhang, K.M. Chu, Z.M. Yi,  and Y.L. Zhu, "Soft manipulator capable of manual operation", CN Patent 215589210 U, 2022.
[30]
H.Q. Zhao, "Soft self-locking manipulator", CN Patent 109048984 A, 2018.
[31]
D.B. Tian, X.W. Bi,  and X.X. Zhang, "Structure design and experiment of variable chamber pneumatic soft manipulator", J. Machine Tool Hydr., vol. 49, no. 11, pp. 109-112, 2021.
[32]
G.B. Dai, Research on the design and control of software gripper based on industrial robot., Dalian University of Technology: Dalian, 2020.
[33]
P. Polygerinos, Z. Wang, K.C. Galloway, R.J. Wood,  and C.J. Walsh, "Soft robotic glove for combined assistance and at-home rehabilitation", Robot. Auton. Syst., vol. 73, pp. 135-143, 2015.
 [http://dx.doi.org/10.1016/j.robot.2014.08.014]
[34]
A.T. Asbeck, S.M.M. De Rossi, I. Galiana, Y. Ding,  and C.J. Walsh, "Stronger, smarter,softer: Next-generation wearable robots", IEEE Robot. Autom. Mag., vol. 21, no. 4, pp. 22-33, 2014.
 [http://dx.doi.org/10.1109/MRA.2014.2360283]
[35]
D. Rus,  and M.T. Tolley, "Design, fabrication and control of soft robots", Nature, vol. 521, no. 7553, pp. 467-475, 2015.
 [http://dx.doi.org/10.1038/nature14543] [PMID:  26017446]
[36]
B.S. Homberg, R.K. Katzschmann,  and M.R. Dogar, Haptic identification of objects using a modular soft robotic gripper. International Conference on Intelligent Robots and Systems (IROS), IEEE, 2015, pp. 1698-1705.
 [http://dx.doi.org/10.1109/IROS.2015.7353596]
[37]
U. Jeong, H.K. In,  and K.J. Cho, "Implementation of various control algorithms for hand rehabilitation exercise using wearable robotic hand", Intell. Serv. Robot., vol. 6, no. 4, pp. 181-189, 2013.
 [http://dx.doi.org/10.1007/s11370-013-0135-5]
[38]
W. Feng, The study on position control of flexible pneumatic actuator., Shenyang University of Technology: Shenyang, 2016.
[39]
J.H. Yu, L.M. Feng, X.Y. Zhou,  and T.T. Yang, "Pneumatic manipulator", CN 212887651 U, 2021.
[40]
C. Marcello, A. Andrea,  and G. Michele, "Robot having soft arms for locomotion and grip purposes", WO Patent 2012150551 A1, 2012.
[41]
T. Wang, "Pneumatic soft manipulator", CN 207630057 U, 2018.
[42]
K.R. Ye, C. Li, X.C. Feng, Z.Y. Zhao, J.L. Shi, G.J. Bao,  and H.J. Ye, "Gas-driven flexible polymer soft manipulator", CN Patent 206703041 U, 2017.
[43]
Y.X. Hua, "Flexible pneumatic manipulator", CN 110666788 A, 2021.
[44]
C.H. Pang, H.J. Lee, S.Y. Baik,  and G.W. Hwang, "Pneumatic controlled soft gripper,manufacturing method thereof and article transprot method using soft gripper", US 2021122065 A1, 2021.
[45]
T. Wang, Y.C. Zhang, S.Q. Zhu, W. Song, Z. Chen,  and D.X. Ji, "Pneumatic soft manipulator and manufacturing method thereof", CN Patent 107856044 B, 2019.
[46]
X.H. Guo, C.C. Li, X. Xu,  and X.R. Liu, "Flexible pneumatic manipulator", CN Patent 113967922 A, 2022.
[47]
J.T. Yao, X.B. Chen, X.H. Zhang, C.J. Wei, W.M. Zhao,  and S. Zhang, "Longitudinal coupling pneumatic multi-fingered soft manipulator", CN Patent 113370242 A, 2021.
[48]
J.H. Zhang, Y.H. Zhao, D.B. Hu, P.C. Ma,  and J. Hong, "Ripple pneumatic soft driver and soft manipulator", CN Patent 113427503 A, 2021.
[49]
B.F. Rodriguezy,  and C.A. Garriga, "Soft robotic manipulator", US Patent 2021291383 A1, 2021.
[50]
J.A. Lessing, R. Knopf,  and C. Vause, "Soft robotic actuator enhancements", US Patent 11110616 B2, 2021.
[51]
J.H. Yu, L.M. Feng, X.Y. Zhou,  and T.T. Yang, "Pneumatic soft manipulator", CN Patent 111633676 A, 2020.
[52]
Y. Yuan, M.C. Wang,  and Z.X. Zhu, "Soft manipulator driven by negative pressure pneumatic artificial muscle", CN Patent 112720540 A, 2021.
[53]
K.R. Ye, C. Li, X.C. Feng, Z.Y. Zhao, J.L. Shi, G.J. Bao,  and H.J. Ye, "Gas-driven flexible polymer soft manipulator", CN Patent 106965200 A, 2017.
[54]
L. Wen, Y.F. Hao, Z.Y. Gong, Z.X. Xie,  and T.M. Wang, "Pneumatic software grasping device", CN Patent 104959992 A, 2015.
[55]
J. Curhan, C. Won,  and A.G. Goodale, "Field-assembled soft gripping for industrial and collaborative robots", US Patent 11090818 B2, 2021.
[56]
H.P. Xiao, T.Z. Hao,  and S.H. Liu, "Soft manipulator", CN Patent 112809720 A, 2021.
[57]
J. Curhan, C. Demello,  and T. Womersley, "End of arm tools for soft robotic systems", US 10661447 B2, 2020.
[58]
R. Knopf, J.A. Lessing, D.V. Harburg, G. Sellers,  and K. Alcedo, "Soft robotic actuators utilizing asymmetric surfaces", US Patent 11161251 B2, 2021.
[59]
F. Ilievski, X. Chen,  and A.D. Mazzeo, "Soft robotic actuators", US Patent 10465723 B2, 2019.
[60]
B. Mosadegh, B.G. Gerberich,  and G.M. Whitesides, "Portable prosthetic hand with soft pneumatic fingers", US Patent 2015351936 A1, 2015.
[61]
P. Nguyen, W. Zhang, P. Polygerinos,  and F.L. Arellano, "Fabric-reinforced textile actuators", US Patent 2020361095 A1, 2020.
[62]
J. Curhan, C. Won,  and A. Goodale, "Field-assembled soft gripping for industrial and collaborative robots", CA Patent 3071568 A1, 2019.
[63]
S.A. Morin, R.F. Shepherd,  and A. Stokes, "Systems and methods for providing flexible robotic actuators", EP Patent 3392000 A1, 2018.
[64]
L. Bao, S.L. Gao,  and J. Yang, "Soft finger, soft mechanical claw, and soft robot", EP Patent 3479974 A1, 2019.
[65]
S. Pirasmepulkul, A. Caracappa, P. Luxsuwang, C.D. Onal, W. Michalson, T. Khuu,  and M. Luo, "Haptic glove as a wearable force feedback user interface", US Patent 10551923 B2, 2020.
[66]
Z.H. Wang,  and H.M. Mo, "A flexible manipulator", CN Patent 209579596 U, 2019.
[67]
J.H. Zhang, J. Hong,  and Y. Li, "Variable rigidity pneumatic soft manipulator capable of realizing equal-length motion", CN Patent 107397650 A, 2017.
[68]
H. Li, "Flexible manipulator with variable rigidity", CN Patent 108527411 A, 2018.
[69]
J.F. Li, B. Xiong,  and Y. Wang, "Flexible manipulator with variable rigidity", CN Patent 109877858 A, 2019.
[70]
J.A. Lessing, R.R. Knopf, D.V. Harburg,  and C.E. Vause, "Enhancement of soft robotic grippers through integration of stiff structures", US Patent 10702992 B2, 2020.
[71]
Y.C. Yan, F.J. Wang, H.C. He, S.J. Zheng, S.F. Liu,  and Y.L. Tian, "Variable-rigidity cavity-dividing soft manipulator using paper folding mechanism", CN Patent 110142797 A, 2019.
[72]
X.B. Zhang, J.H. Yan,  and J. Zhao, "Soft manipulator with active stiffness variable function", CN Patent 111687867 A, 2020.
[73]
L.X. Jiang, L.Y. He,  and C.Y. Wu, "Flexible manipulator with variable rigidity", CN Patent 113070899 A, 2021.
[74]
M. Xu,  and D. Zhang, "Stiffness-adjustable soft manipulator and driving method thereof", CN Patent 113199498 A, 2021.
[75]
W. Xi, "Soft package, robot system for processing the same, and method thereof", US Patent 11241795 B2, 2022.
[76]
H. Su,  and Y. Gao, "Variable stiffness robotic gripper based on layer jamming", US Patent 20210206005 A1, 2021.
[77]
Z.Y. Wang, Z.Y. Weng, X. Yi, L.H. Zhang,  and J.S. Yao, "Flexible manipulator with variable rigidity based on bionic adhesion", CN 113601542 A, 2021.
[78]
H.L. Huang, D.Y. Pan, J.X. Ke,  and B. Li, "Flexible manipulator with variable rigidity", CN Patent 113858254 A, 2021.
[79]
L.L. Ren, L. Zhou, W. Song, J. Tong,  and J. Zhou, "Pneumatic variable rigidity soft manipulator", CN Patent 111098321 B, 2021.
[80]
Y.L. Zhu, C. Hua, X. Chen, Y. Liu,  and S. Xi, "Soft manipulator with variable rigidity", CN Patent 2083323419 U, 2019.
[81]
J.A. Lessing, R. Knopf,  and C. Vause, "Soft robotic actuator enhancements", WO Patent 2016081605 A1, 2016.
[82]
N. Bartlett, J.C. Weaver,  and M.T. Tolley, "3D printed hybrid robot", WO Patent 2017058334 A2, 2017.
[83]
L.J. Guo, J.T. Xie,  and J.J. Li, "Flexible manipulator with variable rigidity", CN Patent 212218529 U, 2020.
[84]
X.J. Yang, Y. Liu,  and T. Yao, "Soft massage manipulator with variable rigidity", CN Patent 213526293 U, 2021.
[85]
E.T. Esfahani, "Soft massage manipulator with variable rigidity", US Patent 20200147813 A1, 2020.
[86]
P. Jiang, Y.D. Yang, C. Chen, L. Bai,  and X.H. Chen, "Flexible mechanical grip adapt to active variable stiffness", CN Patent 107932531 A, 2018.
[87]
Y.H. Chen, Z.C. Li,  and J.H. Lin, "Bidirectional variable rigidity flexible origami mechanical claw", CN Patent 113580179 A, 2021.
[88]
Y. Yang, J. Xu, W.W. Shao, S.Y. Zhong,  and X.M. Li, "A flexible gripper with variable stiffness of magnetic rheological fluids", CN Patent 110480673 A, 2019.
[89]
R. Chen, J.X. Wang, Y.Y. Ma,  and S. Lu, "Pneumatic soft gripper with variable rigidity", CN Patent 111571623 A, 2020.
[90]
X.L. Ma, W. Wei, H.L. Meng,  and G.J. Bao, "Soft finger with variable rigidity", CN Patent 213005348 U, 2021.
[91]
Z.Q. Zhang, W.J. Guan, J.N. Ding, F.J. Zhang,  and G.G. Cheng, "Variable rigidity picking manipulator based on rigid-flexible combination", CN Patent 111887026 A, 2020.

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DOI https://dx.doi.org/10.2174/1872212117666220827151639	Print ISSN 1872-2121
Publisher Name Bentham Science Publisher	Online ISSN 2212-4047

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