Abstract: A flat-pressing manufacturing method of a bionic adhesive structure based on a micro through-hole nickel-based mold is disclosed. The method includes the following steps: preparing a nickel-based mold with a micro through-hole array; placing the nickel-based mold on an elastic pad in a magnetic mold closing system; coating a liquid prepolymer uniformly on a backing, and placing a side of the backing coated with the liquid prepolymer on the nickel-based mold, covering a sealing diaphragm on the backing to separate a cavity into an upper chamber and a lower chamber, and performing a vacuum treatment on the lower chamber and an inflation treatment on the upper chamber to apply a uniform pressure on the backing layer and achieve a full filling of prepolymers with different viscosities; and after the filling is completed, curing and demolding to obtain the bionic adhesive structure.
Type:
Grant
Filed:
April 22, 2021
Date of Patent:
October 25, 2022
Assignees:
NANJING ADHESION TECHNOLOGY CO., LTD, NANJING LI-HANG INDUSTRY INSTITUTE OF BIONIC TECHNOLOGY LIMITED COMPANY
Abstract: A preparation method of a bionic adhesive material with a tip-expanded microstructural array includes the following steps: machining through-holes on a metal sheet; modifying morphology of a through-hole by electroplating, using the metal sheet in step 1 as an electroplating cathode, and arranging the electroplating cathode and an electroplating anode in parallel to prepare a hyperboloid-like through-hole array assembly, fitting a lower surface of the hyperboloid-like through-hole array assembly tightly to an upper surface of a substrate assembly to prepare a through-hole assembly of a mold; and filling the mold assembly with a polymer, curing, and demolding to obtain the adhesive material with the tip-expanded microstructural array.
Type:
Grant
Filed:
June 11, 2020
Date of Patent:
February 22, 2022
Assignees:
NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS, NANJING LI-HANG INDUSTRY INSTITUTE OF BIONIC TECHNOLOGY LIMITED COMPANY
Abstract: A flat-pressing manufacturing method of a bionic adhesive structure based on a micro through-hole nickel-based mold is disclosed. The method includes the following steps: preparing a nickel-based mold with a micro through-hole array; placing the nickel-based mold on an elastic pad in a magnetic mold closing system; coating a liquid prepolymer uniformly on a backing, and placing a side of the backing coated with the liquid prepolymer on the nickel-based mold, covering a sealing diaphragm on the backing to separate a cavity into an upper chamber and a lower chamber, and performing a vacuum treatment on the lower chamber and an inflation treatment on the upper chamber to apply a uniform pressure on the backing layer and achieve a full filling of prepolymers with different viscosities; and after the filling is completed, curing and demolding to obtain the bionic adhesive structure.
Type:
Application
Filed:
April 22, 2021
Publication date:
February 17, 2022
Applicants:
Nanjing Adhesion Technology Co., Ltd, Nanjing Li-Hang Industry Institute of Bionic Technology Limited Company
Abstract: A preparation method of a bionic adhesive material with a tip-expanded microstructural array includes the following steps: machining through-holes on a metal sheet; modifying morphology of a through-hole by electroplating, using the metal sheet in step 1 as an electroplating cathode, and arranging the electroplating cathode and an electroplating anode in parallel to prepare a hyperboloid-like through-hole array assembly, fitting a lower surface of the hyperboloid-like through-hole array assembly tightly to an upper surface of a substrate assembly to prepare a through-hole assembly of a mold; and filling the mold assembly with a polymer, curing, and demolding to obtain the adhesive material with the tip-expanded microstructural array.
Type:
Application
Filed:
June 11, 2020
Publication date:
August 26, 2021
Applicants:
Nanjing University of Aeronautics and Astronautics, Nanjing Li-Hang Industry Institute of Bionic Technology Limited Company
Abstract: A novel six-dimensional force and torque sensor includes a central boss, a cylindrical housing arranged outside the central boss, and twelve elastic beams for connecting the central boss with the cylindrical housing. The twelve elastic beams are respectively provided with strain gauges as needed, and a bottom of the central boss is provided with a mounting hole for mounting a signal processing module. The present invention has the characteristics of self-decoupling, high rigidity, high natural frequency, desirable linearity, ideal repeatability and perfect hysteresis, and ability to measure a large torque (50 N·m). In addition, the sensor can be designed to have different measuring ranges and sensitivities by changing the dimensions of each of the elastic beams.
Type:
Grant
Filed:
April 13, 2017
Date of Patent:
September 3, 2019
Assignees:
NANJING BIO-INSPIRED INTELLIGENT TECHNOLOGY CO., LTD., NANJING LI-HANG INDUSTRY INSTITUTE OF BIONIC TECHNOLOGY LIMITED COMPANY
Inventors:
Chen Li, Julu Yao, Zhendong Dai, Xiaofei Huang