我厂生产地质钻探用的各种自由钳子,其联接件都是用8—10毫米厚的钢板制成,外形虽然大小不一样,而各零件需要加工的半矩形口则是一样的,如图1、2所示,过去加工这种缺口是在立铣床上成形铣削,效率低,硬质合金刀具的损耗也很大,质量还存在着严重的问题,是我厂生产中的关键。 I plant the production of geological drilling with a variety of free pliers, the couplings are made of 8-10 mm thick steel plate, although the size is not the same shape, and the parts need to be processed semi-rectangular port is the same, as shown 1,2, the past processing of this gap is formed in the milling machine milling, low efficiency, carbide loss of large tools, there are still serious quality problems, is the key to our plant.