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BQUQ CNC加工ER32夹头螺母带扳手,精密刀具

为什么这款ER32夹头螺母能在15000 RPM下防止刀具打滑 这是一款CNC加工的ER32夹头螺母,配有配套扳手,用于在铣削和钻孔主轴上夹紧ER32夹头。该螺母保证跳动不超过0.005毫米,表面粗糙度Ra 0.4 µm,螺纹区域硬化至58 HRC,即使在15000 RPM下也能保持刀具同心度。使用随附扳手将螺母拧紧至90 Nm时,可获得刚性且可重复的夹持力,与标准冲压螺母相比,可减少刀具磨损并


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为什么这款ER32夹头螺母能在15000 RPM下防止刀具打滑

这是一款CNC加工的ER32夹头螺母,配有配套扳手,用于在铣削和钻孔主轴上夹紧ER32夹头。该螺母保证跳动不超过0.005毫米,表面粗糙度Ra 0.4 µm,螺纹区域硬化至58 HRC,即使在15000 RPM下也能保持刀具同心度。使用随附扳手将螺母拧紧至90 Nm时,可获得刚性且可重复的夹持力,与标准冲压螺母相比,可减少刀具磨损并改善工件表面质量高达30%。

我们使用42CrMo4合金钢加工此螺母,而非铸造毛坯。每个螺母均在我们东莞工厂的一次装夹中完成车削、铣削和螺纹磨削,因此我们能够保持螺纹螺距精度±0.02毫米,六角对边公差±0.03毫米。扳手由同一批钢材锻造而成,然后硬化至45 HRC,确保在反复90 Nm扭矩循环下不变形。

您直接从工厂订购。这意味着没有贸易公司加价,没有额外的物流中转,500件以下的标准交期为24小时。如果您正在比较供应商,请查看我们的检验报告:我们使用CNC螺纹量规和千分表对每件螺母进行跳动测量,然后才出厂。这是中国制造的精密制造,但附带工程师可以信赖的文件。

ER32螺母螺纹几何如何防止刀具拉出

ER32夹头螺母采用60度内螺纹,螺距1.5毫米,符合ER32夹头标准。但区别在于螺纹牙侧角:我们将承载侧的螺纹磨削至30度牙侧角,与标准切削螺纹相比,接触表面积增加了18%。这意味着夹头座入更深,夹紧力均匀分布在夹头槽上,防止在重粗加工过程中刀具被拉出。

螺母的内锥度磨削至16度夹角,公差±0.01毫米。该锥度用于将ER32夹头压缩到刀柄上。如果锥度偏差甚至0.02毫米,夹头只会两点接触,导致跳动和刀具颤振。我们的磨床能一致地保持该锥度,因此您能获得与夹头的360度完全接触。随螺母附带的扳手有两个销钉,间距精确为23毫米,与螺母端面的两个孔匹配,因此您可以施加扭矩而不会从螺母上滑脱。

我们还在螺纹入口处添加了微倒角。这可以防止将螺母拧到夹头卡盘体上时发生乱扣,这是廉价螺母常见的故障点。倒角为0.2毫米,45度角,即使您以轻微角度开始,也能引导螺纹顺畅进入。这一细节可避免您因一次粗心操作而损坏夹头和卡盘。

我们用于螺母和扳手的材料及热处理

我们使用42CrMo4(AISI 4140)合金钢制造螺母本体。选择该材料是因为其高屈服强度(900 MPa),且能在不脆化的情况下保持硬化螺纹表面。钢材来自中国认证钢厂,每炉均附材料证书。我们不使用12L14等易切削钢,因为它无法承受日常机床使用的反复扭矩循环。

螺母在真空炉中进行热处理,螺纹和外夹持表面硬度达到58 HRC。芯部硬度保持在42 HRC,提供坚韧的内部结构,可吸收冲击而不开裂。扳手整体硬化至45 HRC,然后回火以防止销尖崩裂。然后我们对两个零件进行黑色氧化处理,厚度0.01毫米,可防止冷却液腐蚀并将螺纹表面摩擦降低15%。

锥度和螺纹根部表面粗糙度为Ra 0.4 µm,外六角平面为Ra 0.8 µm。六角平面对边加工至30毫米,符合ER32卡盘标准,但我们保持ISO 2768-m公差,比通常的H13标准更严格。这意味着您的扭矩扳手或标准扳手无间隙配合,防止螺母角部变圆。

每次发货前的检验:我们测量和报告的内容

每件ER32夹头螺母都经过检验,而非抽样。我们使用校准的螺纹塞规检查内螺纹中径至±0.02毫米。然后将螺母安装在测试心轴上,使用分辨率为0.001毫米的千分表测量锥度跳动。最大允许跳动为0.005毫米;如果读数更高,该螺母将被报废,而非返工。

我们还对每批扳手进行配合测试。两个驱动销使用千分尺测量,确保其直径精确为4毫米,间距23毫米。然后在测试螺母上将扳手拧紧至90 Nm,验证销钉不会剪切断裂。每批样品送至外部实验室进行材料硬度测试(洛氏C)和表面粗糙度测试(Ra),报告随货附上。

每笔订单您都会收到数字检验证书,列出批号、炉号和样品的实际跳动测量值。如果您需要特定订单的100%测量数据,我们可以提供,但需额外48小时交期。对于标准订单,批次报告足以满足大多数ISO 9001和AS9100审核要求。

配合、尺寸及与现有ER32夹头的兼容性

此螺母适用于所有标准ER32夹头卡盘,六角30毫米,螺纹螺距1.5毫米。与Rego-Fix、ER和YG-1等品牌的夹头兼容,只要夹头具有标准的16度锥度。螺母内螺纹为M30 x 1.5,这是通用的ER32标准。如果您使用其他尺寸,我们也生产ER16、ER20、ER25和ER40螺母,具有相同的质量和公差。

扳手专为此螺母的双孔设计,但也适用于大多数孔距23毫米的标准ER32螺母。扳手长150毫米,无需加长杆即可达到90 Nm。手柄滚花设计以增加握持力,销钉在多年使用磨损后可更换。

对于使用自动换刀装置的客户,我们可以在螺母外径上增加定位槽用于传感器检测。这是定制选项,需48小时交期,最小起订量50件。对于标准订单,无起订量要求,您可以购买1件用于原型测试,或10,000件用于批量生产。

标准和批量订单的包装、交期和运输

每个螺母单独用VCI(气相防锈)纸包裹以防止运输中生锈,然后装入带泡沫内衬的硬纸盒中。扳手随附在同一盒中。对于500件以上的批量订单,我们使用木托盘加缠绕膜和出口级纸箱,确保即使在40英尺集装箱运输中也不会损坏。

标准交期为500件以下24小时,500至5,000件5-7天。5,000件以上需10-14天,因为我们需要安排专用生产批次。从我们东莞工厂海运至大多数美国或欧盟港口需7-10天,空运3-5天。我们为美国和欧盟客户提供DDP(完税后交货)选项,因此您无需处理清关事宜。

我们接受T/T、L/C或PayPal付款,样品可随时发货。对于首次订单,我们可以安排产前样品,48小时内发货。您支付样品费用,但如果在30天内下达生产订单,我们将从发票中扣除样品费用。这是在承诺大批量之前测试配合和跳动的低风险方式。

我们的ER32螺母与冲压或进口替代品的比较

冲压ER32螺母由薄板金属制成,通常厚度3毫米,在扭矩下会变形。锥度未经磨削,跳动通常超过0.02毫米,导致刀具颤振和表面质量差。我们的机加工螺母使用42CrMo4实心棒料,锥度从同一块金属上切削和磨削而成,跳动不超过0.005毫米。同心度提升4倍。

欧洲品牌的进口螺母价格通常是我们价格的3-5倍,但材料和硬度相似。区别在于我们的交期:24小时对比欧洲缺货的4-6周。如果您是一家需要立即更换螺母的加工车间,等待一个月不可行。我们从东莞现货发货,10天内可将螺母送到您的码头。

我们还提供100%更换保修。如果螺母在购买后12个月内因材料或加工缺陷失效,我们免费发送更换件,包括运费。此保修不涵盖误用造成的损坏,例如超过120 Nm的过度拧紧或使用错误的夹头。但这让您有信心,产品经久耐用,而非一次性销售。

常见问题

最小起订量(MOQ)是多少?

标准ER32夹头螺母的最小起订量为1件,因此您可以订购单个进行测试,无需任何最小数量承诺。

你们可以定制螺母尺寸或材料吗?

可以,我们可以加工定制锥度、螺纹螺距或六角尺寸,也可以使用不锈钢或Inconel等替代材料,原型交期48小时。

你们如何保证每件螺母的0.005毫米跳动?

我们对每件螺母使用分辨率为0.001毫米的千分表在测试心轴上测量锥度跳动,并将批次检验报告随货附上。

1,000件批量订单的标准交期是多少?

对于1,000件,交期为收到您的PO和付款确认后5-7天,我们可以分批发货以满足您的生产计划。

12小时内获取确定报价——立即发送您的图纸

将您的图纸或简单规格表发送至sc@bquq.com,我们将在12小时内回复确定报价,包括单价、刀具费用(如有)和运输选项。对于紧急请求,请通过WhatsApp联系我们+86 13713157787,我们将在工作时间(GMT+8)内回复。

如果您正在评估刀具选项,请阅读我们的CNC刀具选择指南,了解夹头螺母质量如何影响刀具寿命和表面质量。如需深入了解公差及我们如何实现公差,请查看我们的CNC加工公差指南

我们是中国东莞的精密制造工厂,拥有20年CNC加工、冲压、弹簧和散热器经验。这款ER32夹头螺母是我们的标准刀具产品之一,我们以与航空航天或医疗部件相同的严谨态度对待。立即发送您的图纸,我们将用报价和样品证明我们的实力。


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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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