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机床产业的发展带动中国汽车工业的进步
发布日期:2024-02-07
自上世纪90年代末开始到现在,我国机床产品的主要消费主体转移到汽车工业领域,约占机床消费总量的70%,这主要得益于中国汽车工业的快速发展,因此,在业界有一种说法:汽车装备是汽车产业和机床产业半边天的重要支撑。据中轴网了解,由于汽车产业的竞争越来越激烈,汽车产品更新换代的周期已经不再是几十年不再改变,而是每隔几年就会有新的突破。汽车工业生产所使用的数控设备主要是组合机床自动线,该生产线以高效率著称于工业领域。机床产品主要应用在汽车两大领域:汽车整车生产的四条线,也就是冲压、焊接、涂装和总装线;另一个就是发动机、变速箱、转向系统、制动系统、传动系统、悬挂系统在内的汽车零部件的加工。然而,机床消费的重点在后者,也就是大约占整车全部装备价值70%左右的汽车零部件加工生产。
而汽车零部件的制造一般需要四大类机床:金属切削机床生产线,由于精密锻造技术和设备落后,大部分汽车零部件采用切削方式加工;整车制造的四大工艺装备,包括整车自动装配线、车身焊接和装配自动生产线、喷涂自动生产线、冲压自动生产线;精密锻造生产线及制造单元,包括模锻、热精锻、冷精锻(冷挤压)、粉末冶金烧结锻造设备以及内高压成形设备等;铸造生产线包括铸铁件加工的精密铸造生产线,铝合金铸件加工的压铸机(制造单元)。其他还有测试设备、数控刀具系统和激光切割设备等。
发动机作为汽车的核心功能部件,其加工设备是汽车生产最重要的装备之一。而组成发动机的主要零部件是缸体、缸盖、曲轴、凸轮轴以及连杆等。加工这些零件所需的机床大多是高效、高性能、高可靠性的数控机床或专用机床。其中缸体、缸盖加工柔性生产线大多由卧式加工中心组成;曲轴加工设备主要是车拉机床、数控曲轴内铣或外铣床、数控曲轴磨床以及曲轴抛光机等;凸轮轴加工设备主要是凸轮轴数控机床和凸轮轴磨床等;而连杆加工大多采用专用设备,如双端面磨床等。
近些年,机械加工技术发展日新月异,新技术不断涌现并应用到实际生产中来。特别是数控机床的快速发展带动主导着机械加工行业的发展。据中轴网了解,目前很多汽车生产厂家的汽车零部件产品一般都是采用高速加工中心组成的敏捷生产系统。我们国家在向汽车强国转变的过程中,既要掌握设备制造的专用技术,也要加大汽车制造工艺流程方面的开发,拥有独立自主的系统开发能力,提高机床产品的可靠性与精确性,降低企业的生产成本,缩短公司新产品的开发投入使用周期。
基本 文件 流程 错误 SQL 调试
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  18. SELECT COUNT(*) AS think_count FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 84 [ RunTime:0.026202s ]
  19. SELECT `id`,`catid`,`title`,`thumb`,`addtime`,`fbtime` FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 84 ORDER BY `id` DESC [ RunTime:0.031504s ]
  20. SELECT COUNT(*) AS think_count FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 85 [ RunTime:0.006812s ]
  21. SELECT `id`,`catid`,`title`,`thumb`,`addtime`,`fbtime` FROM `zzw_news` WHERE `deltime` = '' AND `catid` = 85 ORDER BY `id` DESC [ RunTime:0.007416s ]
  22. SELECT * FROM `zzw_config` WHERE `id` = 2 LIMIT 1 [ RunTime:0.000639s ]
0.123561s