推荐回答(5个)
刃磨断屑槽时需要保持断屑槽的要求,断屑槽一般分为直线型和圆弧形,刃磨时主要是根据师傅的经验来调整刀具角度,但是一般为右手拿刀尾用力向沙轮刃磨断屑槽,左手拿刀头支撑,因为一般人右手较左手灵活,便于调整角度。
刃磨断屑槽的其他注意事项如下:
1、手工刃磨的断屑槽一般为圆弧型,须将砂轮的外圆和端面的交角处用修砂轮的金刚石笔修磨成相应的圆弧。
2、若刃磨出直线型断屑槽,则砂轮的交角须修磨得很尖锐。刃磨时可向下磨或向上磨,但选择刃磨断屑槽部位时,应考虑留出刀头倒棱的宽度。
3、砂轮交角处应经常保持尖锐或具有一定形状的圆弧,当砂轮的棱边有较大的棱角时,应及时修整。
4、刃磨的起点位置应该与刀尖、主切削刃离开一定的距离,与主切削刃的距离为断屑槽宽度的一半加上倒棱的宽度。
5、刃磨时,注意不能用力过大,车刀沿刀柄方向缓慢移动。尺寸小的一次成形,尺寸大的可分为粗磨与精磨两个过程磨削成形。

扩展材料:
刃磨时的安全注意事项:
1、刃磨刀具前,应首先检查砂轮有无裂纹,砂轮轴螺母是否拧紧,并经试转后使用,以免砂轮碎裂或飞出伤人;
2、刃磨刀具不能用力过大,否则会使手打滑而触及砂轮面,造成工伤事故;
3、磨刀时应戴防护眼镜,以免砂砾和铁屑飞入眼中;
4、磨刀时不要正对砂轮的旋转方向站立,以防意外;
5、磨小刀头时,必须把小刀头装入刀杆上;
7、砂轮支架与砂轮的间隙不得大于3mm,入发现过大,应调整适当。
参考资料来源:
百度百科-车刀
假设90度车刀磨断屑槽时,在沙轮左边开断屑槽,左手拿刀头,右手拿刀尾,是左手拿刀头用力向沙轮刃磨断屑槽,右手拿刀尾支撑;还是右手拿刀尾用力向沙轮刃磨断屑槽,左手拿刀头支撑, 如果是砂轮左开槽,应该是右手拿刀头,左手拿尾.否则视线挡住。
车刀是用于车削加工的、具有一个切削部分的刀具。车刀是切削加工中应用最广的刀具之一。车刀的工作部分就是产生和处理切屑的部分,包括刀刃、使切屑断碎或卷拢的结构、排屑或容储切屑的空间、切削液的通道等结构要素。
断屑槽不仅对切屑起着附加变形的作用,而且对切屑的形状和切屑的折断有着重要的影响。在切削加工中,人们就是利用断屑槽的不同形状、尺寸及断屑槽与主切削刃的倾斜角,来实现控制切屑的卷曲与折断。
断屑槽的形状有直线圆弧型,直线型和全圆弧型三种,减小刀具前角;增大主偏角;在主切削刃上磨出负倒棱;降低切削速度;加大进给量以及改变主切削刃形状等都能促使切屑折断。但是,采取这些方法断屑,常会带来一些不良后果,如生产率下降,工件表面质量恶化、切削力增大等,这种方法,在自动线上很少采用,有时只作为断屑的辅助手段。此外,采用切削液可以降低切屑的塑性和韧性,也有利于断屑。提高
切削液压力更能促使切屑折断,孔加工中,有时就采用这种方法。
求实 很简单 磨刀的时候 不要太用力 掌握住砂轮 不让砂轮跳 要会 修砂轮 轻轻 研磨 祝你成功!
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