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BQUQ CNC加工自动车床52型夹头前视六角孔

这是一款CNC加工的自动车床52型夹头,带有前视六角孔,专为使用52系列主轴鼻端的走心式和固定主轴式自动车床设计。六角孔可夹持六角棒料和六角形刀柄,不会压伤棱角,我们将孔径公差控制在+0.005/-0.000 mm,总指示跳动(TIR)不超过0.005 mm。该夹头在10,000次循环内重复精度可达0.003 mm,标准交期为7个工作日,任意数量均可——包括单件订购。 为什么前视六角孔优于圆孔


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这是一款CNC加工的自动车床52型夹头,带有前视六角孔,专为使用52系列主轴鼻端的走心式和固定主轴式自动车床设计。六角孔可夹持六角棒料和六角形刀柄,不会压伤棱角,我们将孔径公差控制在+0.005/-0.000 mm,总指示跳动(TIR)不超过0.005 mm。该夹头在10,000次循环内重复精度可达0.003 mm,标准交期为7个工作日,任意数量均可——包括单件订购。

为什么前视六角孔优于圆孔用于六角棒料

圆孔夹头仅接触六角棒料的六个棱角,在夹紧力作用下会使材料变形,并在高速车削时引起振动。我们的前视六角孔与每个六角面的整个侧面贴合,将夹紧压力均匀分布在120°弧面上。与相同夹紧扭矩下的圆孔相比,工件偏转可减少高达40%,并消除成品六角表面的压痕。对于对边距(AF)3 mm至32 mm的六角尺寸,我们采用单次走丝线切割加工孔型,再用硬质合金铰刀精加工,确保真正的几何六角形状,棱角圆弧半径不超过0.05 mm。

52型夹头尺寸与互换性

52型夹头遵循DIN 6341 / ISO 15488-B标准,适用于52 mm主轴鼻端,常见于Citizen、Star、Tsugami和Hanwha走心式车床。我们的夹头体直径为52 mm,长度34 mm,安装面锥角为1:10——与原厂几何尺寸完全匹配,可直接装入现有卡盘无需重新调整。前视六角孔与锥面的同心度在0.005 mm TIR以内,发货前经Zeiss三坐标测量机验证。我们还提供后导向孔为20 mm或25 mm的相同夹头,具体取决于您的送料架配置,并可增加内螺纹(M16x1.5或M20x1.5)用于后拉式机构。

规格参数数值
材料(夹头体)SAE 8620渗碳钢或17-4PH不锈钢(选配)
硬度(有效硬化层深度)58–60 HRC,硬化层深度0.8–1.2 mm
六角孔尺寸范围对边距(AF)3 mm至32 mm,可按需定制
孔径公差+0.005 / -0.000 mm
总指示跳动(TIR)≤ 0.005 mm(孔和锥面)
表面粗糙度(孔内)Ra 0.4 µm(可要求镜面抛光)
锥角1:10(安装面),研磨精度0.002 mm/100 mm
夹头体外径/长度52 mm / 34 mm
重复精度(10,000次循环)≤ 0.003 mm
交期7个工作日(标准),3天(加急)
起订量无起订量——单件可订

我们使用的材料与热处理工艺,确保长久夹持寿命

我们选用SAE 8620合金钢(渗碳级),因其具有坚韧的心部,可抵抗重夹紧力下的弯曲变形,同时渗碳表面硬度可达58–60 HRC。硬化层深度为0.8–1.2 mm,足以承受反复开合循环而不产生剥落。对于腐蚀性切削液或食品级应用,我们提供17-4PH不锈钢,硬度为44–48 HRC——略软但完全防锈。每只夹头均在真空炉中整体淬火(无脱碳层),然后在-80°C深冷处理2小时以稳定微观组织,防止长期使用中的尺寸漂移。

我们如何加工六角孔而不产生变形

我们分三步加工六角孔。首先,在CNC车床上车削夹头体,并将1:10锥面磨削至最终尺寸。其次,用线切割从实体材料加工出六角形状,每个侧面预留0.2 mm余量。第三,在坐标磨床上用硬质合金成形铰刀精加工,将对边公差控制在+0.005 mm。线切割工序避免了拉削产生的切削力,这种力可能将薄壁(最小3 mm)推出圆度。铰孔后,前后边缘均用0.1 mm倒角去毛刺,确保六角棒料顺畅滑入不卡滞。我们还在外圆上激光雕刻六角尺寸和日期代码——不会像油墨那样脱落。

每次发货前的检测

每只夹头均通过Zeiss CONTURA三坐标测量机进行5点检测。我们测量六角孔的三对相对侧面(平面度和平行度在0.003 mm以内)、锥面的角度和直线度、孔与锥面之间的TIR,以及使用Mitutoyo SJ-210测量表面粗糙度。每批发货均附带CMM检测报告——即使是单件订单也不例外。我们还进行功能测试:以30 N·m扭矩夹持匹配的六角棒料,用测力传感器测量后拉力;夹头必须能保持棒料5分钟不滑移。任何数值超出规格,该零件即报废,不做返工。

实际应用限制:该夹头能做什么和不能做什么

该夹头专为52型自动车床设计,最高主轴转速8,000 RPM。在此转速下,由于夹头体经过动平衡(我们按G2.5等级进行动平衡),六角孔的径向跳动保持在0.008 mm以内。请勿将其用于圆棒料——六角棱角会压伤圆棒表面并减少30%的夹持面积。如需夹持圆棒料,请订购我们的标准圆孔夹头(相同夹头体、相同锥度)。最大夹紧力为12 kN;超过此值将导致夹头爪永久变形。对于棱角尖锐(棱角圆弧半径小于0.1 mm)的六角棒料,我们建议在孔内增加0.2 mm的棱角避空——告诉我们即可免费添加。

与常见自动车床品牌的兼容性

我们已对52型夹头进行逆向工程,以匹配以下机床的精确锥度和孔深:Citizen L20/L32、Star SR-20/SR-32、Tsugami B020/B032、Hanwha XD20/XD32以及Tornos MultiSwiss。如果您使用其他品牌,请寄送磨损样品或图纸——我们将进行测量并匹配轮廓。该夹头也可通过52转ER32变径套用于标准ER-32夹头卡盘,但夹持长度较短(12 mm vs 20 mm),因此我们建议使用原生52型卡盘以获得最佳刚性。

最小起订量是多少?

无起订量——我们可发货一只或一千只,同样7天交期,同样附带CMM检测报告。

能否定制六角孔尺寸或形状?

可以,我们可加工3至32 mm AF范围内的任意六角尺寸,也可制作方孔、三角孔或针对软材料加大棱角圆弧半径的六角孔——只需发送草图或DXF文件即可。

如何保证单个样品的质量?

每只夹头,无论是样品还是量产件,均100%经CMM检测,报告随零件一同发送;我们不采用抽检或跳批检验方式。

加急订单的实际交期是多久?

标准交期为7个工作日,但对于紧急停机情况,我们可通过航空快递在3个工作日内交付单只夹头——只需在邮件主题中注明“RUSH”即可。

这款夹头是我们位于东莞的精密制造能力的直接体现,我们拥有20台CNC车床和5台线切割设备。我们是一家中国制造工厂,拥有20年为汽车和医疗客户生产夹头、弹簧和散热器的经验。在您最终确定设计之前,请查阅我们的CNC刀具选用指南以确认六角孔几何形状,以及我们的CNC加工公差指南以了解我们如何在淬硬零件上保证+0.005 mm精度。

请将您的图纸或磨损样品发送给我们,12小时内即可获得正式报价——无设计费,无起订量。邮箱:sc@bquq.com 或 WhatsApp:+86 13713157787。如果您需要不同的六角尺寸、不同材料或特殊避空,请在第一条消息中说明,我们将为您精确报价加工时间。


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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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