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The System Design of Wooden Stair Railing Elbow Special NC Process Tool

Author: YeMingLiang
Tutor: MaYan；RenChangQing
School: Northeast Forestry University
Course: Mechanical Design and Theory
Keywords: Handrail Elbow CNC machine tools Overall design Pro / E Motion Simulation
CLC: TG659
Type: Master's thesis
Year: 2008
Downloads: 83
Quote: 3
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Abstract


Recent years, with the continuous improvement of the quality of life and standard of living of the people were in great demand for home interior stairs. Wooden stair handrail for its natural texture characteristics of the natural environment, visual comfort, rich affinity welcomed by domestic and foreign consumers, stairs market share of absolute advantage. The wooden staircase handrail elbow adapter curve, its processing technology has become a key technology constraints wooden stairs Industry Development. Traditional devices and manual processing methods there are many defects, has been unable to meet the requirements; foreign use of multi-axis CNC machine tools or machining centers for production, the equipment is high, domestic stairs is difficult to bear. The price of developing a suitable fit for China wooden stair handrail elbow CNC special machine tools has been a top priority of China's timber processing industry. The typical space stair handrail elbow for the processing of objects, exposition dedicated to the CNC machine tools throughout the design process. In the design of this article, the main motion systems using high-speed electric spindle directly connected to the form of a milling cutter, milling movement. The feed system consists of the transverse direction of the machine tool feed (X-direction), the longitudinal feed (Y direction) perpendicular to the feed direction (Z direction) and three sets of CNC jig rotation of feed (A direction) composition. The whole machining process by a three-step process, each step is completed using ATC swapped jig manner next step. Through the machine's X, Y, Z three-axis linkage rotation, and the the timing constant speed of three sets of CNC jig molding milling of the workpiece. Establish space stair handrail elbow parametric equation of the tool path, and the establishment of the three-dimensional model of the elbow in Pro / E environment. Elbow CNC machining process, the details of the three sets of CNC into group fixture and machine tool main movement and feed system design, and outlines the composition and function of the mechanical structure of the machine tool. Selected German company Siemens SINUMERIK 802C base line open 3-axis CNC system, pointed out that the use of software programming the timing uniform rotation system I / O interfaces, respectively, three sets of dedicated CNC jig machine four axis three linkage function. Finally, in the environment of Pro / E to establish the motion of the system model, the model sports simulation analysis, and to provide guidance for the actual production. The future development of the technology and equipment, largely to meet the demand for wooden stair handrail elbow has important guiding significance to improve the degree of CNC wood processing industry in China.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > Program control machine tools, CNC machine tools and machining
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