推荐回答(2个)
标准化作业的三个要素主要包括标准周期时间、标准作业顺序 、标准在制品存量三个要素: 1)节拍时间-是指各生产单元内(或生产线上)生产一个单位的产品所需要的时间。 节拍时间=每日的工作时间*/每日的必需数量 (*每天的工作时间有差异时用时间表进行计算) 决定了节拍时间后就会因制作人的不同而产生个人差异。并且由于不考虑剩余所以任何一个人都知晓是否有浪费,这又与改善相关。这就给了工厂一个改善的思路:比节拍时间多出了一点时,就该考虑进行改善以遵守节拍时间。 2)标准作业顺序-是用来指示多技能操作者在同时操作多台不同机床时所应遵循的作业顺序,即作业人员拿取材料、上机加工、加工结束后取下,及再传给另一台机床的顺序这种顺序在作业人员所操作的各种机床上连续地遵循着。因为所用的操作者都必须在标准周期时间内完成自己所承担的全部作业所以在同一生产单元内或生产线上能够达成生产的平衡。 3)标准在制品存量-是指在每一个生产单元内在制品储备的最低数量它应包括仍在机器上加工的半成品。如果没有这些数量的在制品那么生产单元内的一连串机器将无法同步作业。但是应设法尽量减少在制品存量使之维持在最低水平。 根据标准化作业的要求(通常节拍时间、标准作业顺序、标准在制品存量都用”标准作业组合”表示)所有作业人员都必须在标准周期时间之内完成单元制品所需要的全部加工作业并以此为基础对作业人员进行训练和对工序进行改善。 三、作业时间 作业时间(生产一件产品的时间总和)是为获得一件完整的合格产品而在每个工位实施基本任务的时间总和。 作业时间通过对每个操作者使用一份循环时间测试表进行适时测试获得,必须进行至少20个连续的循环时间的测试。测试不包含用于非正常的搬运和返工的时间。自检的时间将被包含在测试的时间中。对每个操作者,我们将展示最少循环时间,不包含等待时间,还有最大循环时间和平均循环时间。循环时间需要和节拍时间进行比较。 这个时间使得我们能够计算PPOH目标(每小时每个人生产的产品数量)。可以参考下面的步骤,谢谢!
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标准化作业,目前我们正在推行,主要是:
1、应用MTM方法规定了作业的标准动作
2、一些特殊的动作,比如在作业过程中,需要有修补的动作,会由另外一份文件补充
3、整条线的layout标准化
4、工位间的WIP标准化
我现在已经把模板还有具体的例子上传到了《精益人论坛》,如果想看的话,可以去找下.
希望能对你有所启发,以后可以一起交流!
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