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航天工业部民品司和贵州省经委于1987年6月在贵州省遵义市召开了DK7740电火花线切割机、JMD—TA—05型脉冲电源及MNC805微机数控系统的部、省级鉴定会,鉴定结果认为:由航天工业部群建机械厂等试制的DK7740型电火花线切割机床是成功的,达到了国内同类产品的先进水平,可投入小批量生产。该机特点: 1.机床设计合理、结构紧凑。传动系统精度和加工精度均有一定的储备量。 2.可调线架调节范围广,采用V型槽结构,定位精度高。 3.机床的微机控制系统功能较全(24种功能)。由于元器件都经严格筛选,产品在出厂前还经140小时以上的连续考机,故系统稳定可靠。 4.冲脉电源电参数调节范围广,经1500小时联机试验证明电源稳定可靠,且加工工艺指标较高,钼丝损耗小。
Civil Aviation Department of the Ministry of Civil Aviation and the Guizhou Provincial Economic Commission in June 1987 in Zunyi City, Guizhou Province held a DK7740 WEDM, JMD-TA-05 pulse power and MNC805 microcomputer numerical control system of the Ministry, the provincial appraisal, identification The result shows that DK7740 WEDM made by Qunhe Machinery Factory of CASIC is successful and has reached the advanced level of similar domestic products and can be put into small batch production. The machine features: 1. Machine design is reasonable, compact structure. Drive system accuracy and processing accuracy have a certain amount of reserves. 2.Adjustable wire frame adjustment range, using V-groove structure, high positioning accuracy. 3. Computer control system features more full-featured (24 kinds of functions). As the components have been rigorously selected, the product is still in the factory for more than 140 hours after the test machine, so the system is stable and reliable. 4 pulse power supply electrical parameters to adjust a wide range of 1500 hours online test proved stable and reliable power supply and high processing technology indicators, molybdenum wire loss.