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BQUQ CNC加工自动车床15型六角孔弹簧夹头

这是一款CNC加工自动车床15型六角孔弹簧夹头,专为夹持六角棒料设计,保证同心度0.005 mm TIR。它是15型自动车床主轴的直接替换件,适用于大批量瑞士型和走心式机床,标准尺寸交期7天。每只夹头均采用预硬化60 HRC工具钢精密制造,然后研磨至Ra 0.2 µm表面光洁度,确保高速切削时零滑移。 为什么六角孔夹头优于圆孔夹头用于六角棒料 标准圆孔夹头在夹持六角棒料时会发生变形,仅形成三个接


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这是一款CNC加工自动车床15型六角孔弹簧夹头,专为夹持六角棒料设计,保证同心度0.005 mm TIR。它是15型自动车床主轴的直接替换件,适用于大批量瑞士型和走心式机床,标准尺寸交期7天。每只夹头均采用预硬化60 HRC工具钢精密制造,然后研磨至Ra 0.2 µm表面光洁度,确保高速切削时零滑移。

为什么六角孔夹头优于圆孔夹头用于六角棒料

标准圆孔夹头在夹持六角棒料时会发生变形,仅形成三个接触点。我们的15型六角孔弹簧夹头采用六点内部几何形状,与棒料的六角截面完美匹配,将夹紧力均匀分布在全部六个平面上。结果是扭矩传递能力是圆孔的两倍,在钻孔和攻丝操作中将棒料后移减少80%。对于15型自动车床,这意味着您可以进行更深切削而不会损失位置精度。

材料选择:从棒料到60 HRC的三步工艺

我们采用9CrSi(铬硅)合金钢,而非廉价的45#钢。材料先在五轴CNC车床上粗加工,所有关键面预留0.15 mm余量。然后在真空炉中进行热处理至60–62 HRC,硬化层深度达0.8 mm。最后,在Junker外圆磨床上研磨内孔和锥度。这一三步顺序消除了精加工后再硬化产生的变形。弹簧夹头可张开至公称直径外0.5 mm,因此能适应标准六角棒料公差而不卡滞。

内孔几何与开槽设计:15型规格细节

这是一款真正的15型夹头,适用于设计用于15 mm圆棒(或13 mm六角等效)的主轴。六角孔采用拉削而非线切割加工,以保持内平面的镜面光洁度。我们使用三个等距开槽(而非四个),以保持柱体强度同时允许弹性变形。槽宽0.8 mm,根部带0.2 mm圆角,防止10万次以上循环后产生应力断裂。头部角度为30度,匹配Citizen、Star和Tsugami的标准15型自动车床主轴。

规格数值
类型15型(适配15 mm圆棒/13 mm六角主轴)
六角孔尺寸(对边距)3.0 mm至13.0 mm(以0.5 mm递增)
材料9CrSi铬硅合金钢
硬度60–62 HRC
内孔公差+0.01 mm / -0.00 mm
同心度(TIR)0.005 mm
表面光洁度(内孔)Ra 0.2 µm
开槽数量3(等距分布,间隔120°)
夹持范围公称六角尺寸+0.3 mm至-0.2 mm
标准交期7个工作日(中国制造,BQUQ工厂)
起订量无起订量(接受1件)

跳动控制:我们如何保持0.005 mm TIR

跳动不仅仅是研磨规格,它取决于夹头与主轴锥度的配合关系。我们在同一台机床上一次装夹完成30°锥度和六角孔的研磨,消除了重新装夹误差。研磨后,每只夹头安装在测试心轴上,使用0.001 mm分辨率千分表测量。任何超过0.005 mm TIR的夹头均被拒收。对于关键应用,我们可在夹头表面激光标记实际测量跳动值,供您的QC记录使用。

每次发货前检验:尺寸和硬度检查

每只CNC加工自动车床15型六角孔弹簧夹头均经过5点检验。首先,使用校准的通止规检查六角孔。其次,在洛氏硬度计上测量硬度,确保最低60 HRC。第三,通过压缩夹头10次并测量回零来测试弹簧动作。第四,使用正弦规验证锥度角度。第五,在10倍放大下进行最终目视检查,确认无毛刺或边缘缺口。无论订单数量多少,每笔订单均附有签署的检验报告。

交期与起订量:标准尺寸7天发货

我们在东莞工厂备有15型夹头毛坯库存。标准六角尺寸(3、4、5、6、7、8、9、10、11、12、13 mm)仅需最终研磨,因此7个工作日内发货。定制六角尺寸(如6.35 mm或12.7 mm)需12个工作日,因为需要拉削新的成型刀具。无起订量要求。您可以订购1件用于打样,或500件用于批量生产。50件以上享受批量折扣。对于紧急停机情况,我们提供48小时加急服务,收取30%附加费。

定制六角孔尺寸的起订量是多少?

无起订量;我们将按您的精确六角尺寸加工单件定制夹头,通常12个工作日内完成。

能否进一步硬化夹头以加工钛等磨蚀性材料?

可以,我们可在内孔上施加氮化钛(TiN)涂层,将表面硬度提升至80 HRC等效值并降低摩擦,但标准无涂层60 HRC适用于大多数钢和铝材。

如何在没有圆棒心轴的情况下验证六角孔的跳动?

我们使用精密研磨的六角测试棒,直线度公差0.002 mm,然后在夹头前端和后端测量TIR——该方法详见我们的CNC加工公差指南

如果需要100件标准10 mm六角夹头,交期是多少?

对于100件标准尺寸,我们安排专用批次生产,10个工作日内发货,比混合尺寸的15天更短。

此夹头如何与您的切削刀具和刀具路径配合

刚性夹头只是成功的一半。15型六角孔弹簧夹头能稳定夹持棒料,但您的刀具路径策略决定循环时间。对于高进给粗加工,我们建议与圆棒相比将转速降低15%,因为六角棒料会产生断续切削力。将此夹头与涂层硬质合金刀片搭配使用——请参阅我们的CNC切削刀具选择指南获取牌号推荐。如果出现颤振,请检查夹头开槽方向是否与刀具切削力矢量平行。我们的夹头在0°位置标有激光线以便对准。如需深入了解通过刚性夹具减少循环时间,请阅读我们的CNC编程优化指南

价格、报价与工厂直接支持

我们是制造商,而非贸易公司。这意味着标准CNC加工自动车床15型六角孔弹簧夹头的价格为1–9件每件18.50美元,50件以上降至每件12.80美元。定制六角尺寸起价25.00美元。我们接受PayPal、T/T或信用卡付款。所有价格均为深圳FOB。每只夹头均在中国BQUQ工厂制造,自2004年以来已向34个国家出口230万只夹头。如果您发送主轴鼻端和棒料图纸,我们将在4小时内确认适配性。

请将您的图纸或六角尺寸发送至sc@bquq.com或WhatsApp +86 13713157787。我们将在12小时内回复固定报价,包括用于适配确认的3D模型。无起订量意味着您可以今天就测试一件。


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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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