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BQUQ CNC加工自动车床36型圆孔弹簧夹头

此夹头夹持什么及为何重要 这是一款CNC加工自动车床36型圆孔弹簧夹头。它可夹持直径3 mm至36 mm的圆形棒料,保证总跳动量(TIR)为0.008 mm。这意味着您的车削零件无需返工即可保持公差,班班如此。我们15天内发货,本体淬硬至58–60 HRC,确保长久夹持寿命。 您购买的是工件夹持部件,而非一纸承诺。内孔研磨至Ra 0.4 µm表面粗糙度,夹头锥度与您的主轴匹配精度在0.00


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此夹头夹持什么及为何重要

这是一款CNC加工自动车床36型圆孔弹簧夹头。它可夹持直径3 mm至36 mm的圆形棒料,保证总跳动量(TIR)为0.008 mm。这意味着您的车削零件无需返工即可保持公差,班班如此。我们15天内发货,本体淬硬至58–60 HRC,确保长久夹持寿命。

您购买的是工件夹持部件,而非一纸承诺。内孔研磨至Ra 0.4 µm表面粗糙度,夹头锥度与您的主轴匹配精度在0.005 mm以内。这是我们东莞工厂的精密制造,每一件背后都有20年的CNC加工和冲压经验。

36型锥度如何无间隙锁紧

36型指的是自动车床(如Citizen、Star和Tsugami)上常见的后拉式锥度角。当您驱动拉杆时,夹头向后滑入夹头体。锥度角将轴向拉力转化为径向夹紧力。由于锥度与内孔在一次装夹中磨削完成,夹紧力均匀分布在整个夹持长度上。

我们使用线切割而非铣削来切割夹头槽。这留下0.2 mm宽的槽,无毛刺、无应力集中点。回弹性一致:每个夹头在10万次循环后,松开直径的回复精度在0.01 mm以内。更换棒料时无需重新设置刀具补偿。

我们使用的材料与热处理

我们采用20CrMnTi合金钢,而非易切削低碳钢。该牌号渗碳性能优异,能在夹头爪上保持锋利刃口。夹头体采用40CrMo,在磨削锥座前经调质处理至28–32 HRC。

加工完成后,整个夹头经过真空热处理。夹持面硬度达到58–60 HRC,而弹簧段保持在45–48 HRC。这种差硬性通过选择性感应淬火实现。您获得坚硬耐磨的夹持面,以及柔性弹簧段,在反复循环下不会开裂。内孔表面粗糙度为Ra 0.4 µm;锥面为Ra 0.2 µm。

规格数值
夹头类型自动车床36型圆孔
夹持范围直径3 mm – 36 mm
夹头体材料40CrMo,调质处理
夹头材料20CrMnTi合金钢,渗碳
硬度(夹持面)58–60 HRC
硬度(弹簧段)45–48 HRC
总跳动量(TIR)夹头前端0.008 mm
表面粗糙度(内孔)Ra 0.4 µm
表面粗糙度(锥面)Ra 0.2 µm
交货周期标准尺寸15天
起订量无起订量 – 可订1件

每次发货前的检验

每个夹头均在三坐标测量机(CMM)上检测,分辨率达0.0005 mm。我们测量锥度角、内孔同心度和槽宽。若TIR超过0.008 mm,该夹头将被拒收并重新研磨。我们不发货次品。

我们还进行功能测试:将夹头安装在测试主轴上,夹持一根20 mm研磨棒,以6,000 RPM运行10分钟。我们测量振动幅度。若超过1.5 µm,则重新平衡夹头。每次发货附带测试报告,包括您具体单元上测得的实际TIR值。

为何圆孔优于六角或方形

圆孔用于圆形棒料,这占自动车床加工量的80%。圆孔提供与棒料的360度全接触。这消除了六角或方形夹头产生的三点接触,后者可能在成品零件上留下痕迹。圆孔还能减少重粗切削时的振动,因为棒料在整个圆周上得到支撑。

如果您加工无心磨棒料,圆孔能保持棒料的表面光洁度。无划痕、无刮伤、无变形。对于医疗针、手表零件或连接器针脚等应用,这种表面完整性不可或缺。如需深入了解刀具与工件的相互作用,请参阅我们的CNC刀具选择指南

适用于Citizen、Star和Tsugami的改装适配

36型锥度是许多主流自动车床的标准配置。如果您的机床使用36型夹头,此夹头可直接安装。我们免费根据您的主轴鼻端规格加工背板。常见背板适配包括A2-4、A2-5和螺纹鼻端类型。将您的机床型号发送给我们,我们一封邮件即可确认适配性。

如有需要,我们还供应拉杆螺母和夹头闭合管。这些部件采用相同的40CrMo加工,并淬硬至相同规格。如果您不确定机床的锥度,请测量夹头大端直径和锥度角。我们精确匹配。有关零件图纸公差问题,请参阅我们的CNC加工公差指南

此夹头的最小起订量是多少?

无起订量 – 您可以订购单个夹头进行测试,我们15天内发货。

能否定制内孔尺寸或背板?

可以,我们可以将内孔研磨至3 mm至36 mm之间的任意直径,并免费根据您的主轴鼻端加工背板。

如何保证每个单元的0.008 mm TIR?

每个夹头均在三坐标测量机上测量,实际TIR值打印在随订单发货的测试报告上。

定制内孔尺寸的交货周期是多少?

标准尺寸15天发货;定制内孔增加3天用于研磨和检验周期。

12小时内获得确定报价

将您的图纸或机床型号发送给我们,我们将在12小时内回复确定价格和交货日期。我们是位于中国东莞的精密制造工厂,拥有20年CNC加工经验。您直接与工厂对接,而非贸易公司。将询价邮件发送至sc@bquq.com,或通过WhatsApp联系我们:+86 13713157787。立即发送您的图纸,我们将在您的咖啡冷却前确认适配性和报价。


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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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