發(fā)布時間：2019-05-27 22:46

【摘要】：多工位復(fù)合機床加工通過多個工位的并行控制,能夠比較顯著地縮短加工時間,從而提高生產(chǎn)效率;同時,在一臺機床上采用復(fù)合工藝的加工,減少工件的裝夾次數(shù),從而減小定位誤差,提高工件的加工精度。本文通過對復(fù)合加工的應(yīng)用形式的分析,歸納總結(jié)出復(fù)合加工的技術(shù)特點并提出了控制集合的概念。針對多工位復(fù)合加工有多個坐標(biāo)系,且每個控制集可以獨立控制和并行控制的特點,提出了多通道控制的技術(shù)方案。數(shù)控系統(tǒng)的多通道控制技術(shù)是高檔數(shù)控系統(tǒng)的最核心功能之一,它為復(fù)合機床的多工位復(fù)合加工提供了良好的技術(shù)支持。宏茂鼓輪式多工位復(fù)合機床是一個八工位的復(fù)合加工機床,八個工位之間協(xié)同控制以完成零件復(fù)合加工的工藝要求。本文通過對該機床結(jié)構(gòu)和典型零件的復(fù)合加工工藝方案進行研究,完成了該復(fù)合加工機床控制系統(tǒng)的設(shè)計。通過工位通道的配置將一個八工位的復(fù)合機床劃分成八個相對獨立的可以并行控制的機床。通過PLC的設(shè)計,完成了各個工位之間的同步控制要求。通過設(shè)計與多通道相關(guān)的配置表項,解決了多通道配置設(shè)計的難點。通過實現(xiàn)多通道參數(shù)化生產(chǎn)G代碼功能,順利解決了多通道G代碼編寫的難點。最后,通過一三通水暖零件的加工來驗證該多通道控制系統(tǒng),并將該機床的加工效率與普通機床的加工效率進行了對比。實驗結(jié)果表明,該多通道的控制系統(tǒng)可以實現(xiàn)預(yù)期的多工位復(fù)合加工控制,而且加工效率是普通機床的15倍。
[Abstract]:Through the parallel control of multiple stations, the machining time of multi-station composite machine tool can be shortened significantly, thus the production efficiency can be improved. At the same time, the compound process is adopted on a machine tool to reduce the clamping times of the workpiece, so as to reduce the positioning error and improve the machining accuracy of the workpiece. Based on the analysis of the application form of composite machining, the technical characteristics of composite machining are summarized and the concept of control set is put forward in this paper. In view of the fact that there are multiple coordinate systems in multi-station composite machining and each control set can be controlled independently and in parallel, a technical scheme of multi-channel control is proposed. The multi-channel control technology of CNC system is one of the core functions of high-grade CNC system, which provides good technical support for multi-station composite machining of composite machine tools. Hongmao drum multi-station composite machine tool is an eight-station composite machining machine tool, which is controlled by cooperation between eight stations to complete the process requirements of compound machining of parts. In this paper, the structure of the machine tool and the compound machining process scheme of typical parts are studied, and the design of the control system of the composite machining machine tool is completed. Through the configuration of station channel, an eight-station composite machine tool is divided into eight relatively independent machine tools that can be controlled in parallel. Through the design of PLC, the synchronization control requirements between each station are completed. Through the design of multi-channel related configuration table items, the difficulties of multi-channel configuration design are solved. By realizing the function of multi-channel parametric production G code, the difficulty of multi-channel G code writing is solved smoothly. Finally, the multi-channel control system is verified by the machining of one-three water heating parts, and the machining efficiency of the machine tool is compared with that of the ordinary machine tool. The experimental results show that the multi-channel control system can realize the expected multi-station compound machining control, and the machining efficiency is 15 times higher than that of ordinary machine tools.
【學(xué)位授予單位】：華中科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TG659

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本文編號：2486510