我厂生产的135系列柴油机活塞,材料为铸铝合金。其顶部W形活塞燃烧窒(如图1)的加工,过去是先用头部带圆弧的车刀粗车成W形,然后换用两把高速钢成形样板刀进行半精车和精车,再用2号砂布砂光。该零件手工操作多,劳动强度大,在大量生产中,成为活塞加工过程中的最薄弱环节。最近经过反复试验研究,改用一种活络式弹簧靠模(如图2)进行加工,不仅提高生产效率一倍,而且光洁度达到▽▽6。刀具采用硬质合金,寿命提高4倍,保证了产品质量。靠模结构筒单,装卸和使用方便,它安装在C620型普通车床上进行生产,其结构如图2所示,由20个 I produced 135 series diesel engine piston, the material is cast aluminum alloy. The top of the W-shaped piston combustion stifling (Figure 1) processing, the past is to use the head with a round turning rough car into a W-shaped, and then use two high-speed steel forming a prototype knife for semi-fine car and fine car , Then sanding sand No. 2. The part of manual operation, labor-intensive, in mass production, piston processing become the weakest link in the process. Recently, after repeated experimental studies, the use of a living spring-type mold (Figure 2) for processing, not only improve production efficiency doubled, and finish ▽ ▽ 6. Carbide used tools, life expectancy increased by 4 times, to ensure product quality. It is easy to load and unload and easy to use due to its simple structure and structure. It is installed on the C620 ordinary lathe and its structure is shown in Fig.2. It consists of 20