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BQUQ CNC加工SK50弹簧夹头刀柄带丝锥CNC刀具夹头

这是一款CNC加工的SK50弹簧夹头刀柄,集成丝锥夹头,专为CNC加工中心上的刚性攻丝和钻孔操作而设计。我们将锥角公差控制在AT3等级,确保鼻端跳动小于0.005毫米——即使在6,000 RPM转速下,您的螺纹也能保持在H3等级范围内。我们从东莞工厂发货,交期15天,整个夹持表面硬度为HRC 58-62。 SK50锥柄如何无间隙锁入主轴 SK50(相当于BT50)锥柄与法兰面在一次装夹中磨削完成


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这是一款CNC加工的SK50弹簧夹头刀柄,集成丝锥夹头,专为CNC加工中心上的刚性攻丝和钻孔操作而设计。我们将锥角公差控制在AT3等级,确保鼻端跳动小于0.005毫米——即使在6,000 RPM转速下,您的螺纹也能保持在H3等级范围内。我们从东莞工厂发货,交期15天,整个夹持表面硬度为HRC 58-62。

SK50锥柄如何无间隙锁入主轴

SK50(相当于BT50)锥柄与法兰面在一次装夹中磨削完成。这确保了弹簧夹头刀柄与主轴鼻端实现金属对金属的紧密贴合。我们将7:24锥角加工至±0.0025毫米以内。结果是:拉杆拉紧时零轴向间隙、无径向偏摆。您获得与整体式刀柄相同的刚性,同时兼具可互换夹头的灵活性。

防止丝锥断裂的夹持几何设计

标准弹簧夹头刀柄会挤压方形丝锥柄部。我们的产品在夹头内部采用精密磨削的方形槽,与丝锥驱动尺寸完全匹配(DIN 371或DIN 374)。丝锥安装齐平,扭矩通过方形驱动传递,而非圆柱表面。我们增加了0.5毫米的微小轴向浮动,以补偿主轴进给与丝锥螺距之间的不匹配。这可将盲孔加工中的丝锥断裂率降低高达40%。

我们使用的材料与热处理工艺

我们采用20CrMnTi渗碳钢,而非廉价的4140钢。刀体渗碳深度为0.8-1.2毫米,然后淬硬至HRC 58-62。锥面和内孔在热处理后磨削,而非热处理前,从而消除变形。夹头本身采用弹簧钢(65Mn),淬硬至HRC 45-50以保证弹性。丝锥方形驱动采用高速钢(M2),淬硬至HRC 63-65。每个部件都设计为比其运行的机床更耐用。

M3至M20丝锥的夹头范围与互换性

一个刀柄主体可适配整套丝锥夹头。我们备有M3、M4、M5、M6、M8、M10、M12、M16和M20丝锥尺寸的夹头库存。夹头内孔公差为H7,这意味着M6丝锥柄部(6.0毫米)安装时无可测量间隙。如果您使用不同的丝锥标准(DIN 376、ANSI),我们可在48小时内磨削夹头内孔以匹配您的特定柄部尺寸,无需购买新刀柄。

规格参数数值
锥柄尺寸SK50(BT50,ISO 7388/1)
锥角公差AT3(±0.0025毫米)
主体材料20CrMnTi渗碳钢
表面硬度HRC 58-62(渗碳深度0.8-1.2毫米)
跳动(鼻端)≤ 0.005毫米
表面粗糙度(锥面)Ra 0.2 μm磨削
丝锥范围M3至M20(DIN 371/374/376)
轴向浮动0.5毫米(补偿)
最高转速6,000 RPM(G2.5动平衡)
交期15天(标准),7天(加急)
最小起订量无最小起订量,单件可接受

每批出货前的检测

没有完整报告我们绝不发货。每把刀柄均在蔡司三坐标测量机上检测锥角和同轴度。跳动使用千分表在距鼻端100毫米处验证——数值必须小于0.005毫米,否则报废。我们还使用真实丝锥样品测试丝锥夹头的啮合情况。您将收到一份包含实际测量值的PDF检测报告,而非通用证书。这是我们精密制造流程的一部分,而非额外服务。

针对4,000 RPM以上高速攻丝的动平衡

标准刀柄在高速下会产生振动,破坏螺纹表面质量。我们对每把SK50弹簧夹头刀柄在6,000 RPM下进行G2.5级动平衡。这意味着残余不平衡量小于2.5毫米/秒。相比之下,典型刀柄为G6.3级。平衡通过在法兰上钻削小型校正孔实现。如果您在10,000 RPM下运行,我们可选配平衡至G1.0级——只需在图纸上注明即可。

为何此设计降低每孔刀具成本

您的每孔攻丝成本下降,因为丝锥寿命更长。轴向浮动防止螺纹剥落,方形驱动防止柄部打滑。我们客户五年的现场数据显示,丝锥寿命平均提升35%。此外,弹簧夹头刀柄主体可重复使用——您只需在方形驱动磨损时更换夹头(每个约8-15美元)。相比之下,整体式丝锥刀柄磨损后整个单元都要报废。

这款CNC加工SK50弹簧夹头刀柄的最小起订量是多少?

无最小起订量——我们接受单件试单,您将获得与批量订单相同的检测报告和质量。

能否为非标柄部尺寸定制丝锥夹头?

可以,我们可在48小时内将夹头内孔磨削至3毫米至20毫米之间的任意直径,包括针对专有丝锥设计的方形驱动尺寸。

发货前如何验证跳动?

我们使用三坐标测量机和千分表在鼻端100毫米处测量每件产品,实际测量的跳动值打印在随货附上的检测报告中。

加急订单的交期是多久?

标准交期为图纸确认后15天;对于使用现有刀具的加急订单,我们可在7天内发货——数量低于20件不收取额外费用。

这款SK50弹簧夹头刀柄在中国东莞工厂制造,该工厂拥有20年历史。我们专注于CNC加工和刀具夹持组件。如果您正在比较刀柄,请查看我们的CNC刀具选型指南,了解刀片与刀柄的兼容性。关于工件的公差限制,请阅读我们的CNC加工公差指南

请将您的图纸或丝锥规格发送给我们。我们将在12小时内回复一份确定的报价——包括价格、检测报告样本和运费估算。邮箱sc@bquq.com或WhatsApp +86 13713157787。无最小起订量,无最低订单要求,只有一件精密的工具。


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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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