图1所示的链板由三件组成,如果先组焊而后加工2—φ36mm和2—φ18mm孔,加工精度容易保证,但因此种链板数量多、批量大,单件加工效率十分低下,为此我们把图1中三个单件分别成批加工成形,然后进行组焊对接成形,这样可以保证三个单件成批快速加工 The chain plate shown in Fig. 1 is composed of three pieces. If the two groups of 2-φ36mm and 2-φ18mm holes are machined first, the machining accuracy is easy to guarantee. However, the number of chain plates is large, the batch size is large, and the processing efficiency of a single piece is very low. To this end, we have three pieces of Figure 1, respectively, a single batch processing of forming, and then forming the butt welding, so you can ensure that three single-batch rapid processing