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BQUQ CNC加工SK40 ER32弹簧夹头刀柄 中国精密制造

这是一款CNC加工的SK40 ER32弹簧夹头刀柄,专为加工中心上刚性、可重复的刀具夹持而设计。我们采用20CrMnTi合金钢加工本体,淬硬至HRC 58-62,并将锥度磨削至鼻端总跳动量(TIR)0.005 mm。标准交期为15天,此产品无最小起订量,您可以订购一件试产或一百件批量生产。 为什么ER32弹簧夹头在刀具夹持上优于热缩或Weldon侧固式 ER弹簧夹头通过压缩开槽夹套围绕刀具柄部,


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这是一款CNC加工的SK40 ER32弹簧夹头刀柄,专为加工中心上刚性、可重复的刀具夹持而设计。我们采用20CrMnTi合金钢加工本体,淬硬至HRC 58-62,并将锥度磨削至鼻端总跳动量(TIR)0.005 mm。标准交期为15天,此产品无最小起订量,您可以订购一件试产或一百件批量生产。

为什么ER32弹簧夹头在刀具夹持上优于热缩或Weldon侧固式

ER弹簧夹头通过压缩开槽夹套围绕刀具柄部,将夹持力均匀分布在宽接触面积上。这意味着您可以用同一刀柄夹持20 mm立铣刀或3 mm钻头,只需更换夹套即可。ER32系统可夹持2 mm至20 mm的刀具柄部,覆盖90%的标准铣削和钻孔刀具。与热缩式相比,ER系统可调节且无需单独的感应加热器。与Weldon侧固式相比,没有顶丝将刀具推离中心,因此跳动保持较低。

我们的SK40 ER32刀柄采用4度锥角夹套座,在热处理后磨削加工。磨削后的座面确保夹套均匀收缩,从而减少振动并延长刀具寿命。在400 mm长的测试棒上,我们始终测得0.005 mm或更优的TIR。该数值在每件产品发货前均使用瑞士制造的同轴指示器进行验证。

我们用于SK40锥度所采用的材料和热处理工艺

本体材料为20CrMnTi,这是一种常用于精密传动零件的渗碳钢。我们在一次CNC车铣复合加工循环中完成SK40锥度、ER32螺纹和法兰的加工。然后进行渗碳处理,渗碳层深度为0.8至1.2 mm,并淬火至表面硬度HRC 58-62。芯部保持HRC 30-35的韧性,使刀柄能够吸收冲击而不开裂。

拉钉(也称为保留旋钮)采用40CrMo材料制造,硬度为HRC 38-42。我们按SK40主轴接口的指定扭矩值进行拧紧,并将扭矩值标记在本体上,方便您的维护团队查阅。锥度在专用外圆磨床上磨削,然后研磨至表面粗糙度Ra 0.4。外径车削至Ra 1.6,可防止切屑粘附并加快清洁速度。

跳动控制:从原材料棒料到成品刀柄

跳动不是偶然的,而是一系列受控步骤的结果。首先,我们在加工前对原材料棒料进行去应力处理,以消除内部应力。其次,我们在同一装夹设置中加工ER32内孔和SK40锥度,使两个特征参考同一中心线。第三,热处理会引入变形,因此我们在淬火后磨削锥度。最后,组装夹头螺母并使用精密磨削测试棒进行跳动测试。

我们使用10 mm测试棒以3倍夹套长度夹持测试每把刀柄。鼻端读数通常为0.003 mm,距鼻端100 mm处保持在0.008 mm以下。如果某件产品不合格,我们不进行返工,而是直接报废并重新加工一件。这一政策使我们的平均跳动保持在0.004 mm,优于ISO 10897 AT3级要求。

每次发货前的检验

每把SK40 ER32刀柄在包装前均经过12项检验。我们使用精密气动量仪检查锥角,使用GO/NO-GO螺纹塞规验证螺纹,并使用洛氏硬度计测量硬度。我们还执行上述跳动测试,并将数值记录在检验证书上。证书包括批号、材料炉号和操作员姓名。

对于超过10件的订单,我们随附包含锥度、夹套腔和法兰面CMM数据的完整尺寸报告。该报告免费并随货发送。我们保留每批样品24个月,因此如果您遇到现场问题,我们可以将零件追溯到确切的炉次和加工班次。

表面处理和防切屑粘附涂层选项

标准表面处理为本体黑色氧化处理,外观均匀且具有适度耐腐蚀性。锥面保持磨削光亮状态。如果您加工铝材或其他易粘附材料,我们可以对外部本体施加氮化钛(TiN)涂层。TiN可减少切屑粘附并提高法兰的耐磨性,每件增加约8%的成本。我们还提供钝化不锈钢版本,适用于洁净室或医疗应用,但标准合金钢适用于95%的CNC铣削和钻孔作业。

平衡性和高速运行限制

此SK40 ER32刀柄标准平衡等级为G2.5 @ 15,000 RPM。如果您的 spindle 转速更高,我们可以额外收费平衡至G1.0 @ 20,000 RPM。ER32夹头螺母为标准开槽六角型,我们建议10 mm刀具柄部的拧紧扭矩为65 Nm。过度拧紧不会减少跳动,只会使夹套变形。我们将推荐扭矩范围印在螺母本身,操作员无需查阅图表。

对于12,000 RPM以上的高速铣削,我们建议订购带平衡螺母选项的刀柄,该选项具有机加工卸荷槽以减少空气湍流。此选项增加3天交期,但可减少主轴接口处的噪音和热量。

规格数值
锥度接口SK40(可选BT40)
夹套类型ER32(夹持范围2 mm – 20 mm)
本体材料20CrMnTi合金钢
表面硬度HRC 58 – 62(渗碳层深度0.8 – 1.2 mm)
芯部硬度HRC 30 – 35
拉钉材料40CrMo,HRC 38 – 42
跳动(鼻端TIR)≤ 0.005 mm(典型值0.003 mm)
100 mm处跳动≤ 0.008 mm
锥面表面粗糙度Ra 0.4(磨削并研磨)
本体表面粗糙度Ra 1.6(黑色氧化处理)
平衡等级G2.5 @ 15,000 RPM(可选G1.0 @ 20,000 RPM)
交期15天(标准),7天(加急,加收30%费用)
最小起订量无(接受单件订购)
检验12项检查,订单超过10件附CMM报告

定制长度和特殊锥度订购

如果您需要更长的对刀长度或不同的锥度,我们可在2天内调整图纸。常见修改包括160 mm或200 mm总长度、中心通冷却液孔,或用于自动换刀装置的改良法兰。我们还使用相同的原材料和热处理生产线制造BT40和CAT40版本。定制长度价格约增加15%,交期延长至20天。

将您的刀具清单或现有刀柄图纸发送给我们,我们将匹配关键尺寸。我们的工程师将检查您的ER32夹套和拉钉螺纹螺距(MAS403或ANSI标准)的配合情况。我们已为出口客户制造了超过2,000件定制刀柄,因此大多数需求对我们来说并不陌生。

到货后如何验证质量

收到刀柄后,在安装到主轴上之前进行简单的跳动检查。清洁锥度和主轴锥孔,插入刀柄并拉紧。将精密测试棒夹持在ER32夹套中,并在距夹套鼻端10 mm处指示测试棒。我们的产品读数将低于0.005 mm。如果跳动较高,请检查夹套本身是否有碎屑或损坏——90%的跳动问题来自脏污的夹套,而非刀柄本身。

我们还建议在首次使用100小时后检查拉钉扭矩。热循环可能导致拉钉轻微松动。重新拧紧至SK40的45 ft-lb,并用油漆笔标记位置。这一简单步骤可防止重载粗加工中的刀具脱落。

运输、包装和出口文件

每把刀柄均用VCI(气相防锈)纸包裹,放入泡沫衬里盒中,然后装入木箱(海运)或双壁纸箱(空运)。5 kg以下的订单通过DHL或FedEx发货,大多数国家3-5天送达。较大订单使用FOB深圳或CIF任何主要港口。我们提供商业发票、装箱单和原产地证书——全部免费。

我们所有产品均在中国东莞工厂制造,该工厂自2005年起运营。我们是通过ISO 9001:2015认证的工厂,产品出口至30多个国家。如果您需要特定格式的检验报告以满足ISO审核要求,请提前告知我们——我们将按您的要求格式化证书。

常见问题解答

最小起订量是多少?

无最小起订量——您可以订购单件SK40 ER32刀柄进行测试,数量超过20件时单价仅略有下降。

可以定制对刀长度或冷却液孔吗?

可以,我们可以在图纸批准后2天内修改总长度、增加通冷却液孔或更改拉钉标准(MAS403、ANSI或DIN)。

生产过程中如何控制跳动?

我们在热处理后磨削锥度,并使用校准测试棒测试每把刀柄,任何超过0.005 mm TIR的产品均报废处理。

定制订单的交期是多少?

标准15天,定制20天,加急7天(加收30%费用),不含运输时间。

如果您正在不同刀柄类型之间做选择,请阅读我们的《CNC切削刀具选择指南》,了解ER、热缩式和液压刀柄的对比。关于不同加工工艺的公差定义,我们的《CNC加工公差指南》解释了ISO和ANSI标准如何应用于刀柄。

将您的图纸或现有刀柄照片发送给我们,我们将在12小时内确认价格和交期。邮箱sc@bquq.com或WhatsApp +86 13713157787。精密制造是我们的核心——每把BQUQ刀柄均在我们位于中国东莞的自有工厂内完成加工、淬火和检验。无最小起订量,无中间商,无延误。


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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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