Design and Experimental Investigations of Shape and Attitude Carding System for the Wires of Micro Coreless Motor Winding.

Yuezong Wang,Liuqian Wang,Jiqiang Chen

doi:10.3390/mi12101140

Abstract

The shape and attitude (S&A) of the electrode wire are important characteristics of micro coreless motor winding. The purpose of this paper is to present the design of a robotic micro-manipulation system for micro wire carding with arbitrary S&A, which can be used as the pretreatment system for wire micro-gripper systems. The system is based on the principle of flexible carding, and uses nylon, bristle, nanometer-silk and wool as materials for the brushing micro-manipulator. The trajectory of the brushing micro-manipulator is designed, and the S&A of the electrode wires are straightened through the combined motion mode of horizontal and vertical brushing micro-manipulators. The experimental results show that the material of the brushing micro-manipulator has a great impact on the carding quality. Nanometer-silk material is more suitable for horizontal brushing micro-manipulators, and wool material is more suitable for vertical brushing micro-manipulators. The geometric dimension of the brushing micro-manipulator also affects the carding quality. When the diameter is in the range of 1 mm, the carding effect of the horizontal brushing micro-manipulator with a length of 4.9–8 mm is better. The system can realize the automatic carding of flexible electrode wires with arbitrary S&A, and it will not damage the structure of wires in the process.

Highlights

The micro coreless motor has the advantages of compact size, small moment of inertia, high speed, fast response, smooth output torque and good servo characteristics, etc. [1], and it has been widely used in many fields, such as intelligent robotics, micro-efficient medical devices, smart cameras and intelligent mobile phones
In the manufacturing process of micro coreless motors, a variety of automation technologies related to manufacturing have appeared, such as winding technology [2], electrode wire automatic welding technology [3], motor integrated assembly technology [4], etc
The welding problem of the electrode wire of the micro coreless motor winding that we studied is different from that of the welding technology used for wire feeding mechanisms

Summary

Introduction

The micro coreless motor has the advantages of compact size, small moment of inertia, high speed, fast response, smooth output torque and good servo characteristics, etc. [1], and it has been widely used in many fields, such as intelligent robotics, micro-efficient medical devices, smart cameras and intelligent mobile phones. In the manufacturing process of micro coreless motors, a variety of automation technologies related to manufacturing have appeared, such as winding technology [2], electrode wire automatic welding technology [3], motor integrated assembly technology [4], etc. The diameter and length of the electrode wire of the micro coreless motor winding are only tens of microns and several millimeters, and the shape and attitude (S&A)of the electrode wire produced are arbitrary. In the process of welding the electrode wire to the winding pad, the automatic wire micro-gripper robot, which automatically captures the electrode wire and pulls it to the position of the pad, is very important to realize the welding automation. Welding techniques for wires are common [9,10], where wires are transferred to gun and pad positions by wire feeding

Objectives

Methods

Results

Conclusion