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This paper introduces a method of introducing all-around opening labs to the class teaching of engineering drawing, and many practicing instances are given. This teaching mode is based on students' self-lab-management, case-driven micro lecture learning, and the combination of class teaching and opening lab practicing. It has been successfully run for more than 3 years, and large quantity of excellent students' works have been accomplished, which proves that it is very effective to improve student' s learning interests, practicing ability and innovation consciousness. This mode is replicable.

Dealing with the dynamics and kinematics involved in the designing of explosion-proof pan/tilt,and adopting ADAMS software in the simulation analysis of the dynamic and kinematic features of the mechanism,the authors reveal the rules governing the variation of torques and angular acceleration in multiple operation conditions,serving as a reference for the designing of explosion-proof pan/tilt structure and the relevant control mechanism.

In this paper,we mainly study on walking mechanism and designing of controlling system of the track-leg robot which based on DSPTMSC2812. By analyzing aspects of the change of center of mass during stair-climbing and stability of motion,give the final formula.According to modular division,We design the robot and analysis the mechanical movement and features principle, swing module in the process of climbing over obstacle play an important role. The article analyzed mechanical structure for swing module and demonstrated its mechanical design reasonably, practically, but also gives the robot design profile of control part . The robot can be used for the family, industrial, aviation and other fields, it has broad prospects.

生产实际中,水暖五金产品设计多由工程图开始,而由三维实体模型开始设计更符合设计流程.本文论述了水暖五金产品中规则曲面和不规则曲面的造型方法及实体建模方法.