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Development and Research of NC System for Measuring Experimental Platform with Zero Transmission

Author: MengZhenHua
Tutor: GaoFeng
School: Xi'an University of Technology
Course: Mechanical Manufacturing and Automation
Keywords: Open NC system Linearmotor RENISHAW dual-frequency laser interferometer End-effect
CLC: TG659
Type: Master's thesis
Year: 2009
Downloads: 43
Quote: 0
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Abstract


Linearmotor is a device which had no mechanical transmission mechanism. It had simple structure, low noise, high moving speed and precision. The numerical control (NC) system widely applied in linearmotor machine tools at home and abroad currently is a kind of specialized and closed system. Due to its limitation in expansion and high price, the system can’t meet the requirements of high flexibility and low cost in today’s manufacturing industry. In recent years, study on NC technology has been focused more and more on the open NC system with outstanding flexibility and low cost, which also represents the developing direction of NC technology. The main goal of open NC architecture is to realize the modularized, reconfigurable and expandable software and hardware system by which the flexibility of system would be improved and the users be allowed to choose functional modules, even to integrate, modify, and expand system, which can respond to the market rapidly and economically.Based on the research and development of the simultaneous motion of three-axis linearmotor experimental table, a novel open NC system taking PMAC (Programmable Multiple Axis Controller) as its control kernel is developed. Meanwhile, in order to improve the stability of linearmotor experimental table, tracking end-effect of linearmotor is investigated thoroughly in the thesis. The main studied contents are as follows:1. The open NC system for the linearmotor experimental table is developed. Based on PMAC (Programmable Multiple Axis Controller), the hardware platform is constructed. The management software module of NC system used for processing data, on-line management of measuring, and the measuring modules of geometrical features of components are developed under VC++ 6.0 programming environment.2. Resarched the moving precision of linearmotor experimental table by using the renishaw dual-frequency laser interferometer. Through measuring the positioning precision and repetitive position precision of linearmotor experimental table, we could testify that the result was up to the requirement.3. Researched how the end-effect working on the movment of linearmotor.

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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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