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BQUQ CNC加工ER夹头六角孔精密刀具 – 跳动量0.005mm

这是一款CNC加工的ER夹头,带六角孔,设计用于在精密主轴中夹持六角刀柄和工件。您可保证获得≤0.005mm TIR的鼻端同心度、HRC 58-60的体硬度以及Ra 0.4 µm的表面光洁度。标准尺寸7-10天发货,定制六角尺寸12-15天发货,直接从我们的东莞工厂出货。 为何六角孔几何形状在扭矩传递方面优于圆孔 六角孔通过六个平面锁定刀柄,而非摩擦配合。这消除了高扭矩负载下的滑动,这对于驱动带


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这是一款CNC加工的ER夹头,带六角孔,设计用于在精密主轴中夹持六角刀柄和工件。您可保证获得≤0.005mm TIR的鼻端同心度、HRC 58-60的体硬度以及Ra 0.4 µm的表面光洁度。标准尺寸7-10天发货,定制六角尺寸12-15天发货,直接从我们的东莞工厂出货。

为何六角孔几何形状在扭矩传递方面优于圆孔

六角孔通过六个平面锁定刀柄,而非摩擦配合。这消除了高扭矩负载下的滑动,这对于驱动带六角柄的铰刀、丝锥和立铣刀至关重要。我们的六角孔采用线切割后CNC磨削,实现对边宽度公差+0.005 mm / -0.000 mm。这意味着刀具完全就位,无晃动,即使在10,000 RPM下也能保持居中。

原材料与热处理:20CrMnTi与9SiCr

我们使用两种材料加工ER夹头。对于最大10mm的标准六角孔,我们使用9SiCr合金工具钢。对于较大孔径和高磨损应用,我们使用20CrMnTi渗碳钢。两者均在真空炉中硬化至HRC 58-60,然后深冷处理至-120°C以转化残余奥氏体。此工艺在重复夹紧循环下实现尺寸稳定性——超过50,000次循环而无明显松弛。

实现0.005mm总跳动量的磨削顺序

跳动量在磨削阶段消除,而非加工阶段。CNC铣削孔后,我们对毛坯进行硬化处理。然后磨削外径至0.005mm公差。接着,使用带金刚石修整器的CNC内圆磨床磨削六角孔。最后,在坐标磨床上同时磨削锥角(每侧8°)和夹紧槽。此顺序使每个关键特征参考同一中心线,将总指示跳动量(TIR)保持在鼻端3倍直径处≤0.005mm。

规格数值/范围备注
六角孔尺寸(对边)1.5 mm – 12 mm可定制尺寸
夹头体外径ER11, ER16, ER20, ER25, ER32, ER40标准ER系列
材料9SiCr / 20CrMnTi表面渗碳或整体淬硬
硬度(芯部)HRC 58-60真空热处理
硬度(表面)HRC 60-62(渗碳层)渗碳深度0.3-0.6 mm
总跳动量(TIR)≤ 0.005 mm鼻端,3倍直径处
六角宽度公差+0.005 / -0.000 mm与刀柄过盈配合
表面光洁度(孔)Ra 0.4 µm磨削并珩磨
同心度(孔至外径)≤ 0.003 mm量规检测
交期(标准)7-10天东莞出厂
最小起订量无最小起订量接受样品订单

槽切割与弹性:我们如何防止孔径塌陷

夹紧槽并非直接铣通。我们在磨削后用0.3mm线切割EDM切割,然后将前端的槽口扩大至0.5mm。这产生弹簧效应,使夹头能均匀闭合在六角刀柄周围。我们将槽深控制在±0.02mm以内,确保夹头的弹性范围(通常为0.1mm收缩)在每个零件上保持一致。如果槽过深,夹头在夹紧力下会开裂;过浅则无法夹紧。我们每个生产批次均在水压测试台上验证收缩力。

每次发货前的检测:气动量仪与CMM报告

我们发货的每个ER夹头均经过100%全检,而非抽检。我们使用Federal气动量仪在三个平面测量六角宽度和孔锥度。Zeiss CMM在5点夹具上检查跳动量和同心度。我们还每10件进行一次洛氏硬度测试。您随货收到尺寸报告——不额外收费。这是我们精密制造流程的一部分,而非增值服务。

定制六角孔尺寸的最小起订量是多少?

无最小起订量。我们接受单件定制六角尺寸,但由于设置时间,单件单价较高。

能否在非标准长度的夹头上加工六角孔?

可以,我们可将体长延长至标准ER尺寸的125%,但磨削后必须重新验证跳动量,因为较长体会放大弯曲变形。

如何在批量生产中保证0.005mm跳动量?

我们采用两步磨削工艺(粗磨和精磨)处理外径和孔,并在槽切割后重新检查每个零件,以捕捉应力释放引起的变形。

100件订单的典型交期是多久?

对于标准ER11和ER16六角夹头,100件在10个工作日内发货。对于ER32及以上,磨削周期需增加3天。

我们是中国东莞的精密制造工厂,拥有20年CNC加工和刀具制造经验。我们的ER夹头六角孔产品线直接回应了工程师对六角柄刀具重复夹紧的需求,无需为欧洲品牌支付溢价。在指定夹头前,请查阅我们的CNC刀具选择指南,以匹配夹头等级与主轴转速。同时,请参阅我们的CNC加工公差指南,了解我们的0.005mm跳动量如何满足您的应用需求。

请将您的图纸或六角刀柄尺寸草图发送给我们。我们的工程师将在12小时内回复正式报价,包括建议的材料等级。如需快速响应,请发送邮件至sc@bquq.com或通过WhatsApp联系+86 13713157787。我们随时准备今天为您加工第一件产品。


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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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