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BQUQ CNC加工自动车床50型夹头(圆棒料专用)

这款50型夹头能完成标准卡盘无法实现的功能 这是一款专为通过滑动主轴箱或固定主轴箱自动车床输送圆棒料而设计的CNC加工自动车床50型夹头。其核心优势在于夹持重复精度:我们将真实径向跳动控制在0.005 mm TIR(在距鼻端3 mm处测量),轴向定位重复精度在±0.01 mm以内。从图纸确认到发货仅需7天即可获得此精度,且夹持表面经硬化处理至58–60 HRC,可承受超过200,000次循环而不会


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这款50型夹头能完成标准卡盘无法实现的功能

这是一款专为通过滑动主轴箱或固定主轴箱自动车床输送圆棒料而设计的CNC加工自动车床50型夹头。其核心优势在于夹持重复精度:我们将真实径向跳动控制在0.005 mm TIR(在距鼻端3 mm处测量),轴向定位重复精度在±0.01 mm以内。从图纸确认到发货仅需7天即可获得此精度,且夹持表面经硬化处理至58–60 HRC,可承受超过200,000次循环而不会对冷拔钢、黄铜或铝圆棒料失去夹持力。

这不是普通的ER夹头。50型指的是本体锥度和螺纹螺距(M30 × 1.5拉紧螺纹),与Citizen、Star和Tsugami等品牌的标准自动车床主轴匹配。内孔按您的精确棒料直径磨削,而非一个范围。如果您的棒料为12.00 mm,夹头就夹持12.00 mm——不夹持其他尺寸。这正是我们消除高速车削中棒料后退和振颤的方法。

为什么硬化至60 HRC的夹持表面优于软夹头

软夹头(低于45 HRC)在反复夹持下会变形,尤其是在使用送料机运行3米长棒料时。我们加工的50型夹头以AISI 4140合金钢为原材料,然后在真空炉中热处理至58–60 HRC。夹持段随后通过线切割和磨削达到最终尺寸。这为您提供了坚硬、耐磨的表面,不会与棒料发生咬合,且回弹一致性良好——我们对每个夹头在全行程下进行500次开合循环后的弹性恢复测试。

内孔经过珩磨至Ra 0.4 µm。更光滑的内孔意味着棒料摩擦更小,从而减少热量积聚并防止成品零件出现划伤。对于不锈钢(304/316)或钛合金,我们提供渗氮版本(表面硬度900 HV),交期额外增加2天。

内孔尺寸、公差及我们如何匹配您的棒料

我们将夹头内孔加工至您的标称棒料尺寸,公差为+0.005 / -0.000 mm。这对棒料而言是轻压配合,意味着夹头在360°全圆周上施加夹持力。库存刀具的标准尺寸从3.00 mm起,以0.5 mm递增至50.00 mm。对于非标尺寸(如5.55 mm、12.7 mm),我们在CNC车床上从实心棒料直接加工——无额外刀具费用。用于夹头本体的圆棒料在切割槽之前经过精密磨削,直线度达0.002 mm。

三个槽(用于3段式夹持)或六个槽(用于薄壁棒料的6段式夹持)通过线切割加工。槽宽为0.5 mm ± 0.05 mm。该设计允许夹头在全行程内收缩0.1 mm,足以释放直径略大(最多0.05 mm)的棒料而不会卡死。

规格数值/范围
夹头类型50型(M30 × 1.5拉紧螺纹)
本体材料AISI 4140合金钢
硬度(夹持表面)58–60 HRC(渗氮选项:900 HV)
内孔直径范围3.00 mm – 50.00 mm(以0.5 mm递增)
内孔公差+0.005 / -0.000 mm
真实径向跳动(TIR)鼻端0.005 mm,20 mm深度处0.008 mm
表面光洁度(内孔)Ra 0.4 µm(珩磨)
槽宽0.5 mm ± 0.05 mm(线切割)
回弹(500次循环后)永久变形 < 0.02 mm
交期定制内孔7天,标准尺寸3天
最小起订量无MOQ(接受单件订购)
原产地中国制造,东莞工厂(ISO 9001:2015)

每次发货前的检验:我们测量和记录的内容

每个夹头在离开我们东莞工厂前都经过5步QC检验关卡。首先,我们使用正弦规和量球检查锥度角——50型锥度为16°夹角,我们将其控制在±0.01°以内。其次,我们使用螺纹塞规(6g公差)验证螺纹螺距。第三,我们使用气动量仪(分辨率0.001 mm)测量内孔直径。第四,我们在主轴测试心轴上执行实时TIR测试——安装夹头,插入100 mm精密棒料,以3000 RPM旋转,确认跳动不超过0.005 mm。第五,我们使用洛氏硬度计记录夹持表面硬度,并将证书附在包装中。

我们还对每50件批次进行功能性夹持测试:夹持测试棒料,施加500 N轴向拉力,确认零滑移。这不是抽检——而是对跳动和硬度的100%全检。您将在发货后24小时内收到包含实际测量值(不仅仅是“合格”印章)的PDF报告。

为什么CNC工厂制造的50型夹头优于铸造或铣削仿制品

市场上的许多夹头采用冷成型或铸造工艺,这会留下内应力,导致夹头在数千次循环后发生“漂移”(失去同心度)。我们的50型夹头完全从实心圆棒料CNC加工而成——无铸造、无焊接。本体在5轴CNC车床上车削,槽通过线切割加工,内孔经过珩磨。此工艺消除了变形,确保三个或六个夹持段均匀弯曲。在我们的应力释放测试中,夹头在夹紧和释放10,000次后恢复到原始内孔直径的0.003 mm以内。

因为我们是一家精密制造工厂(而非贸易公司),我们控制整个流程:热处理、磨削、线切割和QC。这就是为什么我们能提供定制内孔尺寸7天交期的原因——我们无需等待海外供应商。如果您不确定50型夹头是否适合您的主轴,请对照机床手册检查螺纹和锥度,或将当前夹头的照片发送给我们。我们将精确匹配。

定制内孔尺寸的最小起订量是多少?

没有最小起订量——我们接受3.00 mm至50.00 mm之间任何内孔尺寸的单件订单,无论您订购1件还是100件,单件价格保持不变。

您能否为薄壁或六角棒料定制槽设计?

可以,我们为6 mm以下直径的圆棒料提供6段式设计以防止椭圆化,并且我们可以为六角棒料(如8 mm对边距)切割内槽——只需在您的图纸上注明棒料形状和尺寸即可。

您如何保证每个夹头的0.005 mm跳动精度?

我们对每个夹头在经校准的心轴上进行100%实时主轴测试,实测TIR值打印在随订单附上的检验证书上;如果任何一件超过0.005 mm,将被报废而非销售。

如果我需要非标螺纹或加长本体,实际交期是多少?

带定制内孔的标准50型夹头7天内发货;如果您需要修改本体长度(如+10 mm)或不同螺纹(如M32 × 1.5),交期延长至10天,因为我们需从更大的坯料加工本体。

此夹头如何与送料机和导向衬套配合工作

当您使用带送料机的CNC自动车床时,夹头在导向衬套后方夹紧棒料。50型夹头的拉紧动作(后部带螺纹)将棒料紧贴主轴止挡拉紧。延长送料机寿命的关键在于夹头外表面光洁度——我们将外径磨削至Ra 0.8 µm,使其在主轴衬套内顺畅滑动而不发生咬合。锥度角与主轴鼻端匹配,因此夹头每次闭合时都能自动定心,即使在数百次循环后也是如此。

对于表面粗糙的棒料(热轧而非冷拔),我们建议订购比标称尺寸大0.01 mm的内孔以避免卡滞。对于精密磨削棒料(h6公差),我们的标准+0.005 mm内孔是正确的。如果您不确定棒料公差,请阅读我们的CNC加工公差指南——它解释了ISO配合等级及其对夹持力的影响。此外,如果您正在为不同类型的主轴选择夹头,我们的CNC刀具选择指南涵盖了ER、5C和50型系统之间的差异,以免您订购错误的锥度。

面向全球工程师的包装、运输和售后支持

每个夹头均单独用VCI(气相防锈)纸包裹,放入带泡沫衬里的盒子中,如果订购超过10件,则再用木箱包装。我们通过DHL、FedEx或UPS发货——单个夹头(约0.5 kg)到美国或欧盟的运费约为35美元,运输需3–5天。我们还提供12个月制造缺陷保修:如果夹头在正常使用下出现裂纹、变形或无法保持公差,我们将免费更换,包括运费。

如果您需要标准目录中未列出的机床定制夹头(如55型或特殊鼻端锥度),请将主轴图纸或旧夹头发送给我们。我们的工程师将进行逆向工程,并在48小时内提供CAD确认。自2005年工厂成立以来,我们已为超过200种机床型号完成此项服务。这是中国制造的精密加工——但具备您对一级供应商所期望的文件记录和可追溯性。

12小时内获得确定报价——发送您的图纸或棒料尺寸

不要再猜测库存夹头是否适合您的棒料和主轴。请通过电子邮件发送您的棒料直径、材料和机床型号(或包含螺纹和锥度尺寸的图纸),我们将在12个工作小时内向您发送确定报价。报价包括单价、交期和运至您门口的运费——无隐藏费用,无最小起订量。对于带定制内孔的单个夹头,典型价格为38–52美元,具体取决于尺寸和表面处理。立即下单,10天内即可将夹头安装到您的机床上。

邮箱:sc@bquq.com
WhatsApp:+86 13713157787
发送您的图纸以获取精确报价——我们接受PDF、STEP或IGES文件。


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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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