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汽车线束生产的质量控制

5月8日,2021年

关于汽车线束生产质量控制的最新公司新闻

汽车线束也被称为汽车的“血管”,通常称为汽车中枢神经系统。汽车线束的设计在整个车辆中起着非常重要的作用。研究汽车线束制造过程中的质量控制点具有重要意义,以提高整个车辆的资格率和可靠性。汽车线束生产主要过程中有四个步骤:离线压接预装配最终组装。不同生产工艺的生产过程,配制相应的标准化操作规范,从而可以有效保证线束产品的质量。

离线技术

离线(称为剥离头)是指根据操作指令的要求剥离导线上的绝缘皮肤,并且长度应符合要求。良好的剥离要求线型,直径,颜色,长度,剥离长度和外观满足要求。剥离期间的预防措施:①剥离长度符合要求;②绝缘皮肤部分均匀;③线芯不切割或受伤,线芯不散布或扭曲;④核心没有松动的电线;⑤线芯不氧化和变黑。如果线芯被氧化和变黑,则易于引起虚拟连接。汽提后,电线应根据一定数量捆扎成束,每个汽提均应设有保护盖,以防止线芯分支或散射。它应放在电线架上,并尽可能减少处理过程。 In The Production Process, Some Companies Do Not Take Necessary Protective Measures After Stripping, Or Improper Protective Measures Are Easy To Cause The Core Scattered, Forked, Twisted Or Broken. As A Result, It Is Difficult To Operate And The Quality Of Crimping Is Poor.

卷曲

终端的压接过程是线束生产全过程中最重要的部分。必须仔细检查在处理卡上的电线类型,规格,颜色,终端规格和压接维度以进行卷曲。检查此链接的质量尤为重要。通过在压接设备和设备上压接模具主要保证终端压接的质量。在终端压接中,线剥线应定位而不是操作员的视觉保证。压接完成后,为了确保端子的机械和电气性能,必须进行拉出力测试以检查压接质量端子的压接端子的压接检查①外观检查:必须对终端压接进行第一件检查检查,应采取3-5件第一件的判断。视觉终端压接外观是否好;无论是线线泄漏;线材是否被打破或绝缘层被刺穿或切割。绝缘层和电线是否与终端紧密相连,无论它们是否在指定的区域②拉力测试:拉出力测试主要测试端子和线束的组合的紧密性。 Through The Pull Off Force Test, Confirm Whether The Maximum Pulling Force Meets The Requirements. Normal Batch Production Can Only Be Carried Out After The Pull Force Test Meets The Requirements. The First Piece Must Be Kept To Ensure Subsequent Traceability. In The Process Of Terminal Crimping, Many Enterprises Pursue Speed, And Think That The Faster The Operator Crimp Terminal, The Better, To Measure The Performance Of Employees. This Is Not Desirable. Korean Enterprises Have Made Clear That Crimping Terminals Cannot Exceed A Certain Speed, Because Only In Such A Speed And State, The Quality And Qualification Rate Of Crimping Terminals Are The Best.

预装配过程

根据过程中规定的顺序和方法将压接端子的电线插入连接器孔中。或将防水螺栓插入连接器孔中。关键点:在子包装之前,仔细检查过程卡上指定的护套和电线的类型,检查护套,电线和终端压接的质量。如果材料或半成品不合格,则不允许使用子包装。必须将终端插入到位和平坦,即终端的顶部位于同一平面上而不会歪斜和变形。如果组件未到位,则电线将在后续过程中从插头盒中掉出。因此,在装配过程中,拉回到确认终端是否完全插入插入式框中。质量标准如下:①终端的孔位置必须满足子组件拉伸的孔位置要求 - 从端子插入方向看孔位置布置;②必须根据“推动”,“聆听”和“拉”的三个步骤来实现插件终端,以确保终端到位并不会退出。特别是,插入终端后必须拉回。 If The Terminal Does Not Withdraw After Pulling Back, It Means That The Terminal Is Inserted In Place. ③ The Appearance Of The Terminal After Inserting Must Be Neat And In Place, Without Deflection. ④ The Wire Led Out After The Sheath Must Be Smooth, Without Obvious Length Difference, Which May Cause Single Stress

装配过程

大装配过程是根据工艺要求组装夹子,将护套在装配板上绑定和缠绕,以形成特殊的线束。大会需要注意的事项:①孔位置的装配误差(也称为错误的布线),这是组装中最严重的错误,并影响使用安全性(在每个过程中的每个过程中的关键点和质量要求)。②应注意在线束装配过程中的错误和丢失的装配。如果无法及时找到错误和丢失的装配,它将导致大量的维修工作和次要伤害的线束。线束中有很少的夹子,这使得在装载时不可能组装。线束夹的错误位置,导致无法加载。③线束不会缠绕或紧密缠绕,导致线路和缺失的电线。在整个车辆线束的组装过程中,线束被划伤,并且单线太大,最终导致线束的损坏。④如果线束有分叉,则必须平滑线束的方向,然后束缚或伤口。否则,在加载过程中,很容易导致线束扭曲,或尺寸不够,扣环或固定点上的力太大,导致固定点的损坏,最终 Abnormal Noise, Or The Abrasion Of The Wiring Harness. ⑤ The Tail Of The Retained Part Should Be 5 ~ 15mm After Cutting The Binding Belt, And There Should Be No Sharp Corners; ⑥ After The Wiring Harness Is Assembled, It Shall Be Hung On The Wire Rack. The Wire Rack Shall Be Made Reasonably. The Wire Harness Shall Not Be Dragged On The Ground, Causing The Sheath Or Terminal To Be Scratched Or Trampled, Causing Damage.

最终检验

在装配布线后,需要对检查和外观尺寸检查进行电力。首先,接通电源是用检测设备插入和连接线束的护套和连接器。连接到位后,设备将自动输入每行进行判断。设备中每种类型的线束都有预先输入检测程序。在所有电线合格之后,设备将显示0K。如果某个分支线路有故障,设备显示屏将以不同的颜色显示,检查员将根据设备提示检查和修复,然后再次执行测试。直到所有合格。不要野蛮地拉动剥离以避免损坏。不合格的产品应标有副胶带,并将特殊的不合格产品盒或指定的拖车放入指定的修理工以进行维修。电源检查必须100%检查。 Secondly, The Appearance And Size Inspection. The Appearance Dimension Inspection Is Placed After The Power On Inspection, Mainly Because The Terminal Connector On The Power On Inspection Equipment Of Some Enterprises Is Damaged, Which May Cause The Pin On The Harness To Be Damaged, Skewed, Fallen Off And Broken. Appearance Inspection Shall Start From The End Of The Line, And Shall Be Conducted One By One Along One Direction To Avoid Omission. Check Whether The Pins In Each Sheath Are Skewed Or Uneven, Whether The Coarse And Close Winding Of The Thread Are Qualified, Whether The Waterproof Bolt Falls Off, Whether It Is Assembled In Place, And Whether The Buckle Is Loose. Once Found Unqualified, It Is Necessary To Label The Unqualified Place, Write The Unqualified Mode, And Place It In The Unqualified Product Area For Rework. Finally, The Dimension Inspection Is Mainly To Place The Harness On The Inspection Tool, Position The Harness, Check Whether The Position Of Each Clip Is Within The Specified Range, Whether The Harness Length Meets The Requirements, And Whether The Length Of Each Branch Meets The Requirements. After The Inspection Is Qualified, The Qualified Label Shall Be Pasted And The Packing And Warehousing Shall Be Carried Out

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