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BQUQ CNC加工自动车床20型夹头(圆棒料)

此夹头的功能及为何能降低您的废品率 这是一款由淬硬圆棒料加工而成的20型夹头,专为自动车床主轴送料设计。它可夹持3毫米至20毫米的圆棒料,同心度跳动保证≤0.005 mm,直接减少刀具振动,改善车削零件的表面光洁度。标准尺寸从我们东莞工厂发货仅需7天,夹持区全长硬度保持在58-62 HRC。 20型夹头如何夹持圆棒料而不留下痕迹 20型夹头采用与主轴鼻端匹配的外锥度,以及三条经热处理后由线切割加


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此夹头的功能及为何能降低您的废品率

这是一款由淬硬圆棒料加工而成的20型夹头,专为自动车床主轴送料设计。它可夹持3毫米至20毫米的圆棒料,同心度跳动保证≤0.005 mm,直接减少刀具振动,改善车削零件的表面光洁度。标准尺寸从我们东莞工厂发货仅需7天,夹持区全长硬度保持在58-62 HRC。

20型夹头如何夹持圆棒料而不留下痕迹

20型夹头采用与主轴鼻端匹配的外锥度,以及三条经热处理后由线切割加工的纵向槽。当拉管将夹头拉入锥度时,这些槽径向弹性变形,形成对圆棒料均匀的360°夹持。我们将内孔加工至H7公差,因此10毫米棒料安装时无间隙。夹持力根据每种棒料直径计算,避免过扭矩损坏软黄铜或铝圆棒。

我们采用的材料和热处理工艺,确保长使用寿命

我们使用20CrMnTi合金钢圆棒料,而非铸件毛坯。棒料在CNC车床上进行车削、镗孔和开槽,然后渗碳至0.6-0.8 mm的硬化层深度。最终硬度为58-62 HRC,芯部保持32-36 HRC以确保韧性。如需耐腐蚀性以加工不锈钢棒料,我们提供9Cr18MoV材质的同款夹头,硬度为54-58 HRC。所有夹头在最终内孔磨削前均进行去应力处理,防止在主轴中发生尺寸漂移。

内孔磨削和跳动控制:可审核的具体数据

内孔不仅仅是车削——它在热处理后使用CBN砂轮在圆柱磨床上进行磨削。这是将跳动控制在0.005 mm以下的关键步骤。我们使用精密心轴和千分表在距鼻端10 mm处测量每件夹头。内孔表面光洁度为Ra 0.4 µm,防止在高进给率下棒料与夹头冷焊。如需比0.005 mm更严格的公差,我们可以按要求磨削至0.003 mm,但交货期将增加2天。

为何我们的夹头比廉价铸造替代品更耐用

大多数低成本夹头由易切削钢加工而成,仅表面淬硬,数千次循环后即磨损。我们的20型夹头由圆棒料加工,工作段完全渗碳并淬硬。槽在淬硬后切割,因此无软边。在我们对20 mm黄铜棒料在4,000 rpm转速下的测试中,夹头在12,000次开合循环中无打滑地夹持棒料。我们还对前缘进行30°倒角,确保棒料顺畅送料,不会卡在槽端。

规格数值
夹头类型20型(DIN 6343 / ER型双锥度)
圆棒料范围3 mm – 20 mm(以0.5 mm递增)
材料20CrMnTi合金钢(或9Cr18MoV不锈钢)
硬度58-62 HRC(渗碳层),芯部32-36 HRC
跳动(TIR)距鼻端10 mm处≤0.005 mm
内孔公差H7(适用于圆棒料)
表面光洁度(内孔)Ra 0.4 µm
3条纵向槽,淬硬后线切割加工
交货期标准尺寸7天,定制内孔9天
起订量无起订量——可订购一件测试

每次发货前检验:我们检查并报告的内容

每件夹头都附带尺寸报告,而非仅目视检查。我们使用正弦规测量外锥角,使用内径规测量内孔直径,使用心轴和千分表测量跳动。硬度在洛氏硬度计上沿本体三个点测试。每件夹头蚀刻序列号,报告附在装箱单上。如果您收到的夹头与报告不符,我们将在48小时内更换——这是我们的保修承诺。

此夹头有最小起订量要求吗?

无起订量——您可以订购一件在主轴中测试,再决定批量生产。

能否为特殊尺寸的圆棒料加工定制内孔?

可以,我们可以在3 mm至20 mm之间以0.1 mm步进镗孔,交货期为9天而非7天。

如何确保夹头与我的主轴锥度匹配?

我们将外锥度加工至标准20型角度(16°包含角),并在每件产品上用正弦规检查——如果您的主轴为非标准,请发送图纸或样品,我们将进行复制。

从下单到发货的实际交货期是多久?

标准尺寸从我们东莞工厂发货需7天,定制内孔需9天,快递取件当天即发送追踪号码。

此夹头如何融入您的CNC车削单元

此夹头可替换自动车床(瑞士型或滑动头型)上的原装夹头,用于从主轴送圆棒料。它适用于任何使用标准20型锥度的拉管。直槽提供刚性夹持,因此您可以以更高进给率运行而不会打滑。如果使用导套,夹头还可为首次加工操作对齐棒料。有关匹配主轴刀具的更多信息,请参阅我们的CNC刀具选择指南。如果您将公差控制在0.01 mm以下,请查看我们的CNC加工公差指南,了解可实现的范围。

为何工程师从中国BQUQ订购此夹头

您购买的是精密制造,而非仅一个金属零件。我们的工厂运营CNC加工线已有20年,此夹头是我们每周生产的标准产品,因此工艺稳定。由于我们在内部从圆棒料加工,我们控制材料晶粒流向,疲劳寿命优于从板材切割的夹头。20型夹头的价格通常比欧洲同类产品低30-40%,跳动规格相同。我们是精密制造工厂,中国制造,但通过DHL或FedEx全球发货——到美国5天,到欧洲4天。

12小时内获得固定报价——发送您的图纸或棒料尺寸

请告知您的棒料直径和主轴类型,或发送现有夹头的图纸。我们将回复固定价格、交货期,如需先测试,还可提供样品。发送邮件至sc@bquq.com或通过WhatsApp联系我们+86 13713157787。工作日内我们12小时内回复,并随首批订单发送检验报告。


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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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