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BQUQ CNC加工自动车床38型圆孔弹簧夹头

这款夹头为您的38型自动车床带来的不同之处 这是一款CNC加工的自动车床38型圆孔弹簧夹头,用于夹持圆形棒料或工件,径向跳动≤0.005 mm TIR。夹持表面经硬化处理,硬度达58–60 HRC,内孔表面粗糙度Ra 0.4 µm,从下单到发货标准交期7天。可替换38型主轴上磨损或低品质的夹头,因内孔一次装夹加工完成、无二次磨削偏差,装夹时间可缩短30%。 为什么圆孔设计优于六角或方孔结构 圆


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这款夹头为您的38型自动车床带来的不同之处

这是一款CNC加工的自动车床38型圆孔弹簧夹头,用于夹持圆形棒料或工件,径向跳动≤0.005 mm TIR。夹持表面经硬化处理,硬度达58–60 HRC,内孔表面粗糙度Ra 0.4 µm,从下单到发货标准交期7天。可替换38型主轴上磨损或低品质的夹头,因内孔一次装夹加工完成、无二次磨削偏差,装夹时间可缩短30%。

为什么圆孔设计优于六角或方孔结构

圆孔夹头适用于圆柱形棒料。内孔在CNC车削后进行磨削加工,消除热处理变形,确保真圆度在0.003 mm以内。与六角或方孔夹头不同,圆孔设计可将夹紧力均匀分布在整个360°圆周上。这意味着工件表面无压痕、6000 RPM下无振动、无需使用软爪。我们将内孔加工至您的精确直径——从3 mm到38 mm——无需购买大尺寸再垫片调整。

38型夹头使用的材料与热处理工艺

根据您的工况,我们选用20CrMnTi合金钢或65Mn弹簧钢。对于大批量棒料送料(超过100,000次循环),20CrMnTi经渗碳处理,渗碳层深度0.8–1.2 mm,然后淬硬至58–60 HRC。对于较轻的手动装料工况,65Mn经油淬和回火处理至52–55 HRC,以获得更好的弹簧弹性。每只夹头均经过-80°C深冷处理2小时以稳定组织,确保即使经过50,000次夹紧循环,跳动精度仍保持在规格范围内。

我们如何加工槽缝而不使硬化层开裂

三槽或六槽(由您选择)采用线切割(EDM)而非铣削加工。线切割留下的再铸层仅0.01 mm,随后进行微去毛刺处理以去除所有锐边。槽宽0.8 mm ±0.02 mm,槽长经过计算,确保夹头可压缩0.5 mm而不发生塑性变形。每只夹头在检验前,我们会在标准棒上重复闭合50次以测试各槽缝。无角部开裂、无毛刺、无卡滞。

每批出货前全检——而非抽检

每一只夹头都经过测量,而非仅抽检批次中的一件。我们使用蔡司三坐标测量机在三个深度位置检测内孔直径,使用Talyrond 365检测圆度,并使用配合精密磨削标准棒的TIR检具检测跳动。跳动在鼻端及距鼻端25 mm处分别验证。硬度在端面及内孔处检测。任何读数超出您的图纸公差,该夹头即报废——绝不返修。每箱附有纸质检测报告。

与您的主轴和棒料送料相关的关键规格

参数数值/范围
本体材料20CrMnTi或65Mn(按您选择)
内孔直径范围3 mm – 38 mm(圆形,磨削加工)
硬度58–60 HRC(渗碳)或52–55 HRC(弹簧钢)
跳动(鼻端TIR)≤0.005 mm
内孔圆度≤0.003 mm
表面粗糙度(内孔)Ra 0.4 µm
槽宽0.8 mm ±0.02 mm(线切割)
最大夹紧循环次数50,000次无需重新紧固
交期标准尺寸7天,定制内孔10天
起订量无起订量——可订1件或1000件

如何将夹头与您的棒料和送料速度匹配

对于直径不超过38 mm的棒料,请订购比棒料标称直径小0.1 mm的内孔。例如,20.0 mm的棒料需要19.9 mm的内孔。这提供了防止打滑所需的预紧力。如果转速超过8,000 RPM,我们会在背面增加动平衡切削,将振动控制在0.5 mm/s以下。如果您的棒料表面粗糙,我们会将内孔缩小0.2 mm并将槽长增加15%——请告知您的材料和进给速度,我们将为您计算夹持力。

常见问题解答

此款夹头的最低起订量是多少?

无起订量——您可以订购一件进行测试,也可以订购整批生产用量,单价仅在20件、50件和100件时递减。

能否加工定制内孔或槽型?

可以,我们可以加工3至38 mm范围内的任意内孔、添加倒角、调整槽数(3、4或6槽),或增加键槽——只需发送您的图纸,我们将在12小时内确认。

如何保证热处理后的跳动精度?

我们在淬硬后进行内孔磨削,然后线切割槽缝,最后在标准棒上重新测量TIR;如果跳动超过0.005 mm,该零件将被拒收,不会出货。

定制38型夹头的标准交期是多久?

标准尺寸7天内发货;定制内孔或特殊槽型10天内发货,如需加急可缩短至5天,需加收15%加急费。

发送图纸索取报价——12小时内回复

请将您的零件图纸或仅需棒料直径和主轴型号发送给我们。我们将在12个工作小时内确认价格、交期和夹持力计算。如需最佳刀具选型,请阅读我们的CNC刀具选型指南,了解夹头硬度如何影响刀具寿命。如果您需要比标准更严格的公差,请参阅我们的CNC加工公差指南,了解我们可达到的精度。这是中国制造的精密制造,无起订量,并提供12个月的材料缺陷质保。

邮箱:sc@bquq.com
WhatsApp:+86 13713157787
今天就发送您的图纸——我们将在12小时内发送正式报价。


相关产品

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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