Research On Virtual Prototype Technology Of The 2K-V Reducer

2K-V(called RV in Japan)reducer is a new type of cycloid pin gear transmission mechanism.Because of its high transmission accuracy and large transmission ratio,it has been widely used in high precision fields such as industrial robots.Due to the large number of parts and the complex structure of 2K-V reducer,the traditional physical prototype design method can no longer meet its design requirements.Virtual prototyping technology can replace physical prototypes to evaluate the performance of new products in a virtual environment.With the development of science and technology,the design efficiency of virtual prototypes has become high increasingly.Therefore,a complete set of parameterized design and automatic assembly system for typical parts of 2K-V reducer are designed in this paper.The kinematics simulation analysis of the assembly model was performed.The main research contents are as follows.According to the structural characteristics of the typical parts of the 2K-V reducer,some geometric characteristic parameters were defined.The VB.net programming language was used for the secondary development of the SolidWorks software.The parameterized design method of each part of the 2K-V reducer was carried out.The drawing of the 3D model of the part is done in a program-driven manner,which not only ensures the accuracy of the modeling,but also improves the work efficiency.In view of the working principle and structural characteristics of the 2K-V reducer,and based on the traversal and selection technology of the part features during the assembly process of SolidWorks software.This article has written an automatic assembly program for 2K-V reducer,and completed the parameterized design model of each part.Automatic assembly improves the assembly efficiency of the virtual prototype effectively and shortens its design cycle.The “graphical analysis method” was used to carry out a kinematic analysis of the 2K-V reducer in this paper,and calculated the angular velocity and the transmission ratio of the typical parts in the ideal state.Then the kinematics simulation of the model obtained by the automatic assembly was completed in the dynamic analysis software RecurDyn.The angular velocity of the output parts matched the theoretical calculation results,thereby verifying the accuracy of the prototype model and the accuracy of the written software,It also laid a good foundation for subsequent kinetic analysis and error analysis.The research in this paper can improve the design efficiency of the 2K-V reducer virtual prototype greatly,and thus achieve rapid response to market demand,which has certain practical significance.