Abstract
In today’s era of rapid development of manufacturing industry, entrepreneurs have begun to focus their eyes and strategies on mechanical automation, strive to use a lot of automation equipment, in order to improve the production efficiency and the economic benefits. Nowadays the automation equipment has been spread all over the production lines of enterprises, especially the automated. Due to meet the needs of the social industry, people begin to design more advanced s. From another perspective, the industrial level of a country depend on its manipulator technology and the extensive degree of manipulator application.
An overview of robot is outlined, its XYZ rectangular coordinate is introduced, and the mechanical structure of the manipulator is described. The design process of three linear motion modules is detailed, including the selection calculation of the motor, type selection of the ball screw pair and the rolling guide, the selection of rolling bearing, the selection of flexible coupling, the design of bearing base, the design of motor mounting base, the design of the frame, and the check of the related indexes of machine parts. The check contains the stiffness of the guide screw, the allowable speed among the working life, the load of rolling bearing, the working life of guide screw. The process of a non-standard part is detailed, including the dimension design, the machining process from the rough to required part. The heat process contains normalizing, tempering, modulation processing.
All the above work is aimed at designing a XYZ rectangular coordinate manipulator which can move up and down, move left and right, move forward and backward. The design of the structure must meet not only the basic movement but also the high locating and move accuracy. The manipulator must have the small volume and a beautiful appearance.
Key words: manipulator; motor; ball screw