车削加工时，如何防止工件及其装夹装置造成的伤害事故--杨远锋的博客

车削加工时，如何防止工件及其装夹装置造成的伤害事故

[ 2011-7-4 21:30:00 | By: 杨远锋 ]

在车削加工时，暴露在外的旋转部分，如工件的旋转运动、装夹工件的拨盘、卡盘、鸡心夹等的旋转都有可能对操作者造成伤害。为防止这类伤害事故的发生，应采用防护罩或安全装夹方式将危险部分隔开。
（1）旋转工件的防护车削时旋转工件上凸出的部分钩住衣服或打击身体造成伤害。有时也会因工件装夹不牢而飞出伤人。为防止这类事故发生，在高速旋转时，防止工件飞出，应保证夹具有良好的工作状态；使用顶尖支撑工件时，后顶尖要保持良好的润滑，以防因顶尖过热磨损造成工件脱落飞出。在加工长棒料时，其暴露在车身外面，转速很高时一旦触到，就可能卷入或打伤。为防止这类事故，可采用长棒料的防护安全装置，将旋转的棒料与火隔开。
（2）旋转夹具的防护车床上经常使用拨盘、鸡心夹、卡盘。拨盘的拨杆、鸡心夹的尾端、卡盘的卡盘爪在转动时都有可能钩住操作者的衣服，引起伤害事故。为消除这些危险，应该使用安全型鸡心夹头，其优点在于没有凸出部分，周围有一轮缘，在旋转时就不会钩住操作者衣服。
还可采用安全拨盘，其形状成杯状．杯的边缘可以起保护作用。用这种安全拨盘时，可用一般鸡心夹。
卡盘安全防护罩的结构是将卡爪罩起来。工作时，通过手柄将活动网罩拉出，卡盘被逮住。金属罩壳用管和螺钉装紧在两个横杆上，横杆通过底座固定在机床上。

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原创

[ 2016-9-6 17:11:43 | By: 原创(游客) ]

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原创

[ 2016-9-28 16:47:30 | By: 原创(游客) ]

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原创

[ 2016-9-30 11:24:06 | By: 原创(游客) ]

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Re:在漫画中识别身边的违章

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Re:在漫画中识别身边的违章

[ 2017-2-18 13:33:01 | By: qfimq(游客) ]

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Re:在漫画中识别身边的违章

[ 2017-2-18 14:42:31 | By: duxbd(游客) ]

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Re:在漫画中识别身边的违章

[ 2017-2-19 23:37:51 | By: ycgko(游客) ]

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Re:在漫画中识别身边的违章

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