Put forward a kind of 2 dof parallel fixture. The moving platform of the fixture has two rotational degrees of freedom relative to the fixed platform. Do the institutional analysis and its degree of freedom calculation. Study the kinematics modeling method, and carry out an analysis on forward and inverse solutions of its positions. The new parallel fixture will have wide appli¬ca¬tion in the field of machining.
In order to solve the flank concave problem of the rotary gear shaving cutter, a new worm type shaving cutter has been manufactured, which will be used on a gear hobbing achieving freedom shaving. And its tooth precision can reach 6-7 level. The main contents includes the worm normal section curve equation of the worm type shaving cutter involutes, the optimization of tooth fitting error and the linear fitting of the tooth curve of the normal section by the MATLAB genetic algorithm toolbox. According to GB/T6084-2001 hob series standard, the results showed that the error theory is less than 1/6 of the AA level.
A new type of a 2-PRS/2-UPS 4-DOF parallel platform was introduced. The error model of the parallel worktable was established through the vector method. The effect of structural error, driving error, position error and clearance error of the joint point to the pose error of the moving platform can be analyzed. Error modeling provides theoretical foundation for design and error compensation of the parallel mechanism.
In the paper, after researched current usage of RFID in automated storage and retrieval system (AS/RS), based on RFID technology , by using Kingview and some other softwares, including Visual Basic and MS Access, a control system, which can manage information in AS/RS and do storage works automatically for QXLMPS-005/1 AS/RS was established. The main steps of design process were given out. This system proved stable and reliable after testing and could have some commercial benefit.
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