Structure Design And Analysis Of A Robotic Radial Drilling Machine

According to statistics, drilling process accounts for a considerable proportion in history of hundreds of years of metal cutting processing and development. And in all types of drilling machine, radial drilling machine has been occupying an important position. It is widely used in the process of drilling, bearizing, fraising, spot facing and tapping and so on, and it is the master of great universal machine tool.However, with the development of economic globalization and mature of world factory concept, people put forward higher requirements on the quality of the products and the machining accuracy. Obviously, the traditional old radial drilling machine has been unable to meet the conditions. Although, in order to adapt to the development of the times and higher processing requirements, people constantly improve on radial drilling machine, control circuit of the vast majority of radial drilling machine was improved, and the structure of radial drilling machine has only partial improvement, not a breakthrough.This paper presents that using a dual series parallel quadrilateral mechanism to replace the rocker arm structure of the radial drilling machine, producing a robotic radial drilling machine structure. Under the premise of not changing the original working space of radial drilling machine, the change makes the structure of radial drilling machine substantial changes.The structure uses the parallelogram mechanism instead of rocker arm structure of radial drilling machine. Therefore, the original movements of rocker arm lifting and shaft along the transverse arm of radial drilling machine are completed by single parallelogram mechanism motion, thus simplifying the motion mechanism of the traditional radial drilling machine. The decrease of the original movements of rocker arm lifting and shaft along the transverse arm of radial drilling machine causes the disappearance of the elevating screw and the guide of spindle box along the transverse arm motion. Therefore, it not only improves the machining accuracy of radial drilling machine, but also makes the processing and production of radial drilling machine itself more convenient.In addition,it also reduced the weight of the machine tool, reduces the labor intensity of workers, improves corresponding the work efficiency.This paper is divided into six parts:the introduction part of the first chapter mainly introduces and analysis existing radial drilling machine and the parallelogram mechanism and so on; the part of double series parallel quadrilateral rod of the second chapter mainly determines each rod length value of double series parallel quadrilateral mechanism based on the limit condition; driving part of robotic radial drilling machine of the third chapter mainly choices the method of driving double series parallelogram mechanism and determines the structure of driving telescopic rod and so on; the part of three dimensional modeling of robotic radial drilling machine of the fourth chapter mainly designs the whole structure of robotic radial drilling machine; analysis and improvement part of robotic radial drilling machine of the fifth chapter mainly carries on the analysis of deformation and mechanics of designed radial drilling machine, and improve three dimensional model of established robotic radial drilling machine based on deformation; the part of summary and prospect of radial drilling machine of the sixth chapter mainly summary main work and research significance of this paper and makes reasonable prediction on the development of radial drilling machine in the future.In addition, the structure of radial drilling machine of a robotic radial drilling machine is designed based on Z3040 × 16 radial drilling machine of first machine tool plant of Shashi City.