<title>Linear motion estimation using straight-line correspondences and its error analysis</title>

The special honing machine is used in the precision machine of the monomer hydraulic prop cylinder internal hole surface. The main revolving movement is driven by motor, the reciprocating linear motion is actuated by hydraulic ram. Honing machine consists of three parts, mechanism, the hydraulic system and the electric control system. The work principle and the processing process, the interlock relation between movements and the straight line feed motion velocity modulation method of this machine were discussed in this study. The special honing machine designed for the monomer hydraulic prop cylinder is convenient and easy for person to operate, and has high efficiency. The reciprocating linear motion driven by hydraulic ram is steady when direction is changed. It is convenient to change speed, and has advantageous of enhancement processing surface quality.

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Three-dimensional motion estimation by straight-line and endpoint optical flow

2014 7th International Congress on Image and Signal Processing ◽

10.1109/cisp.2014.7003836 ◽

2014 ◽

Author(s):

Congxuan Zhang ◽

Zhen Chen ◽

Ming Li ◽

Shuigen Wei

Keyword(s):

Motion Estimation ◽

Optical Flow ◽

Three Dimensional ◽

Straight Line

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Straight-Line Mechanisms as One Building Element of Small Precise Robotic Devices

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.613.96 ◽

2014 ◽

Vol 613 ◽

pp. 96-101 ◽

Cited By ~ 5

Author(s):

Jaroslav Hricko

Keyword(s):

Compliant Mechanisms ◽

Building Blocks ◽

Linear Motion ◽

Kinematics Analysis ◽

Positioning Accuracy ◽

Building Element ◽

Revolute Joints ◽

Straight Line ◽

Robotic Devices ◽

Straight Line Mechanism

Small precise robotic devices, working on principle of compact compliant mechanisms, must meet the conditions to high positioning accuracy what mean moving in straight-line too. But, compliant mechanisms are usually produced by equivalent of revolute joints, therefore in design of small robotic devices is necessary apply knowledge from design of one type of specialized mechanisms – straight-line mechanisms. This paper presents some straight-line mechanism and its applications to design of some small precise robotic devices. According to kinematics analysis most known straight-line mechanisms are evaluated for their application in compliant mechanisms. Such devices are transformed to flexure structures. Consequently, these devices are important building blocks to design some linear-motion stages and/or micro-grippers.

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