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BQUQ CNC加工自动车床48型圆孔弹簧夹头

这款夹头的作用及其对主轴的重要性 这是一款CNC加工的自动车床48型圆孔弹簧夹头,专为使用48型夹头锥度的高速走心式和滑动主轴箱车床设计。它可夹持直径3 mm至42 mm的圆棒料,鼻端跳动精度保证≤0.005 mm(TIR)。这一精度源于淬硬本体(58-60 HRC)和磨削内孔表面粗糙度Ra 0.4 µm,即使在8,000 RPM转速下也能确保棒料保持居中。标准尺寸交期为15天,我们提供无起订量


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这款夹头的作用及其对主轴的重要性

这是一款CNC加工的自动车床48型圆孔弹簧夹头,专为使用48型夹头锥度的高速走心式和滑动主轴箱车床设计。它可夹持直径3 mm至42 mm的圆棒料,鼻端跳动精度保证≤0.005 mm(TIR)。这一精度源于淬硬本体(58-60 HRC)和磨削内孔表面粗糙度Ra 0.4 µm,即使在8,000 RPM转速下也能确保棒料保持居中。标准尺寸交期为15天,我们提供无起订量服务——您可以订购一件用于打样,或500件用于批量生产。

48型锥度如何无需液压即可锁紧

48型夹头采用机械弹簧闭合、推压开启的设计。拉管向前推动锥形套筒,将弹簧钢片向内压缩以夹紧工件。与液压夹头不同,它没有液体泄漏、密封件磨损或温度漂移的问题。圆孔由单件20CrMnTi合金钢加工而成,经渗碳淬火至58-60 HRC。这使其能够提供8-12 kN的可重复夹紧力(取决于夹头尺寸),且锥度座内无背隙。

我们用于本体和夹头部分的材料及热处理工艺

夹头本体和夹头片采用20CrMnTi(相当于AISI 8620)合金钢。选择该合金是因为其芯部韧性(渗碳后40-45 HRC)和表面硬度(58-60 HRC)俱佳。渗碳深度为0.8-1.2 mm,控制在±0.1 mm以内,可防止反复夹紧循环下的表面开裂。锥度座采用CBN砂轮磨削,表面粗糙度Ra 0.4 µm,锥角公差±0.0015度。弹簧片单独热处理至48-52 HRC,然后回火以保持弹性记忆——确保夹头在数千次循环后仍能恢复至原始孔径。

可验证的孔径尺寸、跳动和磨削精度

每个圆孔均在热处理后磨削,而非热处理前。我们使用配备马波斯在线测量仪的内圆磨床,将孔径公差控制在±0.005 mm以内。该孔并非直圆柱形——后端设有0.02 mm的卸荷槽,以减少摩擦并便于排屑。跳动量通过安装在精密芯轴上的千分表在鼻端测量;我们保证每只夹头均达到≤0.005 mm TIR。如需更高精度,可将孔径研磨至≤0.003 mm,但交期将增加2天。

每批出货前均进行检验——绝非一纸证书

每只夹头在包装前均经过12项检验。我们测量:锥角、三个深度位置的孔径、鼻端及向后50 mm处的跳动、表面粗糙度、硬度(便携式洛氏C硬度计)以及弹簧力(在开启位置使用测力传感器测量)。随货附上CMM检测报告和硬度证书。如果任何读数超出您的图纸公差,我们将返工或报废——绝不发出临界合格品。过去12个月中,该产品线的退货率为0.4%。

我们的标准规格表(以及可调整项)

参数标准值定制范围
夹头锥度48型(1:10)可按要求提供1:8、1:12
圆孔直径3-42 mm(步进0.5 mm)加长本体可达50 mm
本体材料20CrMnTi(AISI 8620)可选17-4PH不锈钢
表面硬度58-60 HRC按图纸54-62 HRC
芯部硬度40-45 HRC38-48 HRC
孔径公差±0.005 mm研磨可达±0.003 mm
跳动(TIR)≤0.005 mm≤0.003 mm
表面粗糙度(内孔)Ra 0.4 µmRa 0.2 µm
夹紧力8-12 kN6-15 kN
交期(标准)15天紧急订单7天(加价)
起订量无起订量接受1件

如何订购正确的孔径尺寸(避免代价高昂的错误)

请使用千分尺测量棒料的实际直径,而非标称尺寸。例如,一根10 mm的磨光棒料实际测量值通常为9.98 mm——请订购9.98 mm的孔径,而非10.00 mm,以获得最佳夹持效果。如果使用冷拔棒料,请预留+0.02 mm的间隙。我们按照您的确切图纸编号加工孔径,请在询价单中提供该尺寸。如果不确定,我们可以在开始生产前寄送一套孔径量规供您确认。这是我们日常为欧洲和北美走心式加工厂提供的标准精密制造服务。

该夹头的最小起订量(MOQ)是多少?

无起订量——我们接受单件用于打样或紧急更换,50件以上单价仅略有下降。

能否根据我的具体车床型号定制孔径和锥度?

可以,我们按照您的图纸将孔径加工至±0.005 mm以内,并可调整锥角、本体长度和螺纹螺距,以匹配任何自动车床48型主轴,包括Citizen、Star和Tsugami机型。

对于单件或小批量订单,你们如何确保质量控制?

每只夹头,无论数量多少,均经过相同的12项检验,附CMM报告和硬度证书,原材料追溯记录保存5年。

标准交期是多久?如果急需怎么办?

标准交期为图纸确认后15天;紧急订单可在7天内发货,需加收20%加急费。我们备有10种常用孔径库存(6、8、10、12、14、16、18、20、25、32 mm),可在3天内发货。

12小时内获取确定报价——立即发送您的图纸

将您的零件图纸或孔径尺寸发送至sc@bquq.com,我们的工程师将在12小时内回复确定报价、交货日期和DFM检查意见。如有紧急问题,请通过WhatsApp联系+86 13713157787。我们是一家位于中国东莞、拥有20年经验的精密制造工厂,对48型夹头了如指掌——确保您首次就能获得适配主轴的零件,而非反复折腾。在最终确定刀具方案之前,请查阅我们的CNC刀具选择指南,为夹头匹配正确的刀片几何角度,并阅读我们的CNC加工公差指南,为您的下一个项目设定切实可行的规格。立即发送您的图纸——我们将在您喝完咖啡之前完成报价。


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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