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气缸套是各种内燃机的重要零件,它与活塞配合工作。气缸套内圆的椭圆度和不柱度有严格要求,产品要逐件检验。以往的检测方法是采用一个浮子式气动量仪,工人手持测量头在不同的横截面停留旋转,通过浮子的位置来判断椭圆度和不柱度是否符合要求。一个缸套一般取三个横截面和三个纵截面进行测量。若每个截面取三个数据,那么就需对9个数据进行比较,计算出椭圆度和不柱度。这种检测方法劳动强度大,检测速度慢。为了改变这种落后的检测方法,提高检测速度,减轻工人的劳动强度,应工厂要求,我们设计了装有光电开关的气动量仪与单板机配合的检测系统,实现半自动化检测。系统的工作原理如图1所示。它由单板机系统、装有光电开关的气动量仪和气压操作系统组成。
Cylinder liner is an important part of a variety of internal combustion engines, it works with the piston. Cylinder liner oval and non-cylindrical degrees have strict requirements, product by piece inspection. The past detection method is to use a float pneumatic measuring instrument, the worker hand-held measuring head to stay in different cross-section rotation, the position of the float to determine the ovality and non-cylindrical degree of compliance. A cylinder liner generally take three cross-sections and three longitudinal sections were measured. If you take three data for each section, then you need to compare the nine data to calculate ovality and column. This test method labor-intensive, slow detection. In order to change this backward detection method, improve the detection speed and reduce the labor intensity of the workers, we designed the detection system with the pneumatic measuring instrument equipped with photoelectric switch and the single-board machine according to the requirements of the factory to realize the semi-automatic detection. System works as shown in Figure 1. It consists of a single-board system, equipped with photoelectric switch pneumatic instrument and pneumatic operating system.