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精密冲压电子支架系列 | BQUQ 工厂直供

这是来自BQUQ的精密冲压电子支架系列,BQUQ是一家位于中国东莞、拥有20年经验的精密制造工厂。这些是高公差金属冲压件,用于PCB安装、连接器固定、屏蔽罩和机箱接地——经过裁切、成型和精加工,公差达到±0.02 mm,最大跳动0.05 mm。图纸确认后典型交期为10个工作日,硬化弹簧钢变体可达到45–50 HRC硬度。 我们如何在高速冲压机上保持±0.02 mm精度 跳动和平面度是冲压支架的两


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这是来自BQUQ的精密冲压电子支架系列,BQUQ是一家位于中国东莞、拥有20年经验的精密制造工厂。这些是高公差金属冲压件,用于PCB安装、连接器固定、屏蔽罩和机箱接地——经过裁切、成型和精加工,公差达到±0.02 mm,最大跳动0.05 mm。图纸确认后典型交期为10个工作日,硬化弹簧钢变体可达到45–50 HRC硬度。

我们如何在高速冲压机上保持±0.02 mm精度

跳动和平面度是冲压支架的两大难题。我们使用25吨至160吨高速冲压机,伺服驱动送料精度为±0.005 mm。级进模在厂内自行研磨,切削刃表面粗糙度达Ra 0.4 µm。每套模具在生产前均经过首件检验,每50,000次冲程后重新认证模具磨损情况。这就是我们如何在20万件批量生产中保持尺寸漂移低于0.02 mm的方法。

我们用于电子支架的材料和热处理

您不限于一种材料等级。我们常备8种材料:304不锈钢、301不锈钢(全硬)、冷轧钢SPCC、镀锌钢SECC、5052铝、110铜、65Mn弹簧钢和C17200铍铜。对于弹簧触点,我们将65Mn热处理至44–48 HRC。对于铍铜,我们时效硬化至38–42 HRC。如果您需要特定电镀——锡、镍、银或闪金——我们在厂内完成,而非外包给第三方,因此附着力测试始终可追溯。

确保支架一次安装到位的二次加工

仅冲压不足以满足电子支架需求。我们增加去毛刺(振动或手工)、攻丝(ISO公制或UNC)、沉孔和压铆螺母。对于承重支架,我们在安装凸台上进行压印,将表面平整度控制在0.03 mm。对于EMI屏蔽支架,我们增加弯曲弹片或百叶窗,最小弯曲半径为0.2 mm。所有二次加工均在8,000平方米的厂区内完成——无外包,无运输延误。

每次发货前的检验——我们测量什么及原因

每批产品均附完整尺寸报告,而非仅随机抽样。我们使用三坐标测量机(蔡司Contura)检测孔位和轮廓,使用2D光学投影仪检测弯曲角度,使用轮廓仪检测表面粗糙度Ra。每批热处理零件均使用洛氏硬度计验证硬度。我们还进行100%目视检查,检测毛刺、划痕和电镀缺陷。每次发货均附PDF报告,包括原材料钢厂证书。

定价和模具:无起订量订购时的费用构成

以下是透明的计算方式。您支付一次性模具费(通常为$800–$3,500,取决于模具复杂度和工站数量)。之后,单价下降,因为没有最小起订量——订购100件或100,000件,单价相同。我们不会将模具维护费用隐藏在单位成本中。对于几何形状简单的支架(2–3次弯曲,无压印),模具费用较低。对于带切舌和压花的复杂零件,费用在较高区间。我们会在12小时内发送完整的模具报价明细。

参数数值/范围
材料304不锈钢、301不锈钢、SPCC、SECC、5052铝、110铜、65Mn、C17200铍铜
厚度范围0.1 mm – 3.0 mm(冲压)
最大零件尺寸300 mm × 200 mm
尺寸公差±0.02 mm(关键特征),±0.05 mm(一般)
跳动/平面度100 mm长度内最大0.05 mm
表面粗糙度RaRa 0.8 µm(冲压表面),Ra 0.4 µm(模切边缘)
硬度(热处理后)44–48 HRC(65Mn),38–42 HRC(铍铜)
电镀选项锡、镍、银、闪金(厂内完成)
交期10个工作日(图纸确认后)
起订量无起订量(模具费仅收取一次)

冲压支架与机加工支架对比——何时选择哪种

不要对所有零件都使用冲压。如果您的零件有深腔、倒扣或多面螺纹,CNC机加工更合适。如果您的零件是带2–4次弯曲的扁平支架且产量高(每年超过5,000件),冲压在成本和一致性方面更具优势。如需深入了解刀具选择,请阅读我们的CNC刀具选择指南。如需了解我们的±0.02 mm公差在行业中的定位,请参阅CNC加工公差指南

易碎冲压件的运输和包装

薄型冲压支架如果包装不当,运输中会弯曲。我们对电镀件使用防静电托盘,对重型支架使用瓦楞纸内衬,对高光洁度表面使用独立塑料袋。出口包装符合IPPC标准(热处理木托盘)。货物通过DHL、FedEx或深圳空运发货——3–5天门到门送达美国、欧盟或日本。海运则合并装载以降低成本。每个箱子均标注零件号、批号和数量。

精密冲压电子支架系列的最小起订量是多少?

没有起订量——您支付一次性模具费,即可按相同单价订购100件或100,000件。

您能否根据我现有的PCB布局定制支架设计?

可以,我们接受您的2D或3D图纸(STEP、IGES或PDF),并根据您的精确孔位、弯曲半径和安装高度调整模具设计。

您如何控制大批量冲压生产中的质量?

我们每100件使用数显卡尺和高度规进行过程检验,首件进行CMM全检,发货前提供最终批次报告。

冲压支架订单的典型交期是多久?

模具制作需5–7天,生产需10个工作日;图纸确认后3周内即可拿到零件。

立即发送您的图纸,12小时内获得正式报价。邮箱sc@bquq.com或WhatsApp +86 13713157787。中国工作时间段内,我们会在2个工作小时内回复。精密冲压电子支架系列——精密制造,中国制造,无起订量,全程可追溯。


相关产品

参数

参数能力
材料SPCC、SGCC、SUS301/304/316、黄铜、铜、铍铜、磷青铜
工艺级进模冲压、精冲、深拉深、折弯、攻丝
公差±0.01mm标准,±0.005mm可按要求
表面处理镀锌、镀镍、镀锡、镀金、粉末喷涂、钝化、阳极氧化
模具尺寸最大1200 x 800 mm,16-250吨冲床
厚度0.05 - 6.0 mm板材,线材0.1 - 8.0 mm
打样7-15天模具制作,样品无最小起订量
检测每批次全检报告,CMM和三坐标光学测量

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