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BQUQ CNC加工ER夹头螺母套装 多种尺寸精密刀具

这是一套完整的CNC加工ER夹头螺母套装,提供多种尺寸,用于在CNC主轴和夹头卡盘中牢固夹持刀具柄部。我们保证跳动精度不超过0.005mm,表面光洁度Ra 0.4µm,螺母硬度45HRC——确保您的刀具在重切削下保持居中,不会在15,000 RPM转速下摆动。每套产品均在中国东莞工厂制造,拥有20年精密制造经验,标准尺寸7天内发货,无最小起订量。 ER夹头卡盘如何无跳动夹持刀具 ER夹头螺母套装


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这是一套完整的CNC加工ER夹头螺母套装,提供多种尺寸,用于在CNC主轴和夹头卡盘中牢固夹持刀具柄部。我们保证跳动精度不超过0.005mm,表面光洁度Ra 0.4µm,螺母硬度45HRC——确保您的刀具在重切削下保持居中,不会在15,000 RPM转速下摆动。每套产品均在中国东莞工厂制造,拥有20年精密制造经验,标准尺寸7天内发货,无最小起订量。

ER夹头卡盘如何无跳动夹持刀具

ER夹头螺母套装的工作原理是将开槽夹头向内压缩到刀具柄部上。螺母的内部锥角(ER系列精确为8度)与夹头的外部锥度匹配,在整个圆周上产生均匀的径向力。这就是跳动保持在0.005mm的原因——不是靠运气,而是靠几何精度。我们螺母上的螺纹采用滚压而非切削加工,以消除应力集中点并保持螺母与夹头座之间的同心度。当您将螺母拧紧至推荐的80-100 Nm(适用于ER32)时,夹头均匀闭合,沿刀具柄部全长夹持,而不仅仅是夹口处。

我们使用的材料与热处理工艺

我们采用4140合金钢加工螺母,而非廉价的12L14。夹头本身由65Mn弹簧钢制成。对于螺母本体,我们将其硬化至42-45HRC,可抵抗反复拧紧和松开时的磨损。螺纹在热处理后进行精密磨削,使中径公差保持在0.02mm以内。夹头经过44-48HRC的弹簧回火处理,可承受数千次开合循环而不产生永久变形。我们最后对所有零件进行发黑氧化处理以防腐蚀。涂层不会在主轴内脱落——这是一种化学转化层,而非油漆。

每次发货前的检验流程

每一个螺母和夹头都经过100%全检,而非批次抽检。我们使用分辨率为0.001mm的三坐标测量机检查锥角——如果锥度偏差超过0.005mm,该零件即报废。跳动值使用测试棒在夹头前端测量,实际数值记录在装箱单上。螺纹配合通过通止规验证。硬度使用洛氏硬度计进行抽检,每个热处理批次取样一件。如果您要求提供检验报告,我们会随货发送,并由质检主管签字。除非每个零件都通过检验,否则我们不会发货。

尺寸范围及常见主轴适配

我们备有ER11、ER16、ER20、ER25、ER32和ER40螺母套装。每套包含螺母及对应的夹头尺寸——夹持范围从1mm到26mm,视系列而定。ER32套装覆盖2mm至20mm的刀具柄部;ER40套装最大可达26mm。螺纹匹配标准主轴鼻端:ER11使用M14x0.75,ER16使用M16x1.0,ER20使用M20x1.0,ER25使用M25x1.5,ER32使用M32x1.5,ER40使用M40x1.5。如果您使用BT、CAT或HSK刀柄,螺母螺纹相同——变化的是刀柄锥度。我们也可以为非标主轴加工定制螺纹螺距,但这会增加3-5天的交期。

规格参数数值
材料(螺母)4140合金钢
材料(夹头)65Mn弹簧钢
螺母硬度42-45 HRC
夹头硬度44-48 HRC
跳动精度(TIR)≤0.005mm
表面光洁度Ra 0.4µm
螺纹公差6H(内螺纹)
可用尺寸ER11, ER16, ER20, ER25, ER32, ER40
夹持范围1mm至26mm(视系列而定)
交期(标准)7天
最小起订量无最小起订量
表面处理发黑氧化

扭矩一致性对刀具寿命的重要性

如果螺母扭矩不足,夹头无法完全闭合,刀具会在切削过程中被拉出。扭矩过大则会永久性变形夹头槽口,导致夹持力丧失。我们在螺母上加工出六角驱动面,使扭矩扳手能够平稳啮合,不会打滑。螺母外径尺寸设计为可避让标准主轴鼻端,因此无需特殊套筒。对于ER32,推荐扭矩为80-100 Nm;对于ER40,为100-120 Nm。每次务必使用扭矩扳手——与手动拧紧相比,刀具寿命可提升高达30%,因为切削刃保持在您设定的位置。螺母套装本身无法修复磨损的主轴,但可以消除刀具松动这一变量。

非标刀柄的定制选项

如果您使用专有主轴或改装刀柄,我们可以调整螺母的螺纹螺距、外径或驱动槽配置。将图纸或样品螺母发送给我们,我们将在48小时内完成逆向工程。我们还可以更改表面处理——例如,化学镀镍以增强耐化学腐蚀性,或使用干膜润滑剂用于高温切削。如果您需要加长螺母以避让深沉孔,我们将从棒料直接加工,而非修改标准毛坯。由于我们所有零件均在厂内CNC加工,定制零件无需模具费用——仅需稍长的交期,约10-12天。我们已为使用非目录主轴的汽车、航空航天和医疗器械制造商定制过ER螺母。

每套产品的包装与可追溯性

每个螺母和夹头均单独用防锈纸包裹,然后放入带泡沫内衬的塑料盒中,防止零件之间相互接触。盒子上标注零件号、批次号和检验日期。如果您订购50套,它们将装在一个纸箱中,装箱单与批次号一一对应。这种可追溯性意味着,如果出现质量问题,我们可以调出该批次的确切热处理记录和检验日志。我们已坚持此做法20年,并保留记录5年。您得到的不是一袋普通零件——而是一套有文档记录、符合我们宣传公差的产品。

在选择夹头系统之前,请查阅我们的CNC切削刀具选型指南,了解ER螺母如何与您的其他刀具配合使用。如果您正在为新零件设定公差,我们的CNC加工公差详解介绍了实际可实现的精度,而非仅停留在纸面上。

ER夹头螺母套装的最小起订量是多少?

无最小起订量——订购一套或一千套均可,50套以上单价仅略有下降,因为我们可以节省装夹时间。

能否为我的主轴定制螺纹螺距或螺母尺寸?

可以,将图纸或样品发送给我们,我们将在10-12天内加工定制螺母,包括任何螺纹螺距或外径变更。

如何保证每套产品的0.005mm跳动精度?

我们使用测试棒在三坐标测量机上测量每套组装好的螺母和夹头组合,实际跳动值记录在随货附带的检验报告中。

标准ER夹头螺母套装的典型交期是多久?

标准尺寸从东莞工厂发货需7天;定制尺寸视修改复杂程度需10-12天。

在12小时内获得确定报价。将您的图纸或所需尺寸发送至sc@bquq.com,或通过WhatsApp联系我们:+86 13713157787。我们将在您确认之前确认价格、交期和规格。


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参数

参数能力范围
材料AL6061/7075, SUS303/304/316, 45#钢, T2铜, H59黄铜, POM, PEEK, 尼龙
公差±0.005mm标准,±0.003mm可按需定制
设备3/4/5轴CNC, 车铣复合, 瑞士型车床
表面处理阳极氧化, 镀镍, 镀锌, 钝化, 喷砂, 抛光
尺寸范围最大400 x 300 x 200 mm
打样72小时,样品无最小起订量
检测每批次提供完整报告,可按需提供CMM数据

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