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在飞机零件机加车间,人们对于提高生产效率的问题是相当重视的,但对于提高工艺技术工作效率的问题则研究甚少,工艺工作节奏缓慢,因而长期以来技术科室人数超过生产工人,多次想精简机构却又精简不下来。因此,研究提高工艺技术工作效率的问题,就显得特别重要了。为此,本文试以下列几个问题,谈一管之见。 一、飞机图样中一般公差的表达方法 飞机图样中,既未注公差带代号又未注公差数值的尺寸很多,这些公差数值,要分别取自“一般公差”(HB5800—82)、“铸件尺寸公差和加工余量”(HBO—7—67)、“模锻件尺寸公差”(HBO—6—67)、型材图纸及其技术条件以及飞机结构件或系统件的专用技术条件等。这些公差数值既没有也不可能全部标注在
In the aircraft parts workshop, people pay a lot of attention to improving the production efficiency. However, there are few studies to improve the work efficiency of the technology and the slow pace of the work. Therefore, the number of technical departments has exceeded the number of production workers for many times Want to streamline the organization but can not be streamlined. Therefore, it is particularly important to study the issue of improving the work efficiency of process technology. For this reason, this article tries to talk about the following questions. First, the aircraft in the general tolerance of the design drawings Aircraft design, not marked with tolerance code with no tolerance and tolerance values of many sizes, these tolerance values, respectively, to be taken from the “general tolerance” (HB5800-82), “casting size Tolerances and Allowances ”(HBO-7-67),“ Forgings Dimensional Tolerance ”(HBO-6-67), Profile drawings and their technical conditions as well as special technical conditions for aircraft structural parts or system parts. These tolerance values are neither nor all possible