Dial indicator measuring slot flange plate of symmetry

Dial indicator measuring slot flange plate of 2018 - degree of symmetry 08 - Liu2 xing (27 Shaanxi method and gear co. , LTD. ) A, general test method of flange ( See figure 1) After the groove processing, need to detect the degree of symmetry, in order to adjust machine for batch processing. （ 1) Three coordinate method. Three coordinate measuring is the first selection of shop accurate detection. Establish spatial coordinates, to find are artifacts, mining point measurement. Validated at least need 15 ~ 20 min, more time-consuming. And at the same time, the phenomenon of the processing site shutdown, increase the cost of processing workshop, reduce the work efficiency. （ 2) V play table test. Step one: one end of the cylindrical on V block, on the other side on the block, with a height gauge leveling, and then use the table groove side, record the maximum value; Step 2: flange flip 180 & deg; To the above method, record the biggest value. The difference between the two values is the symmetry of slot. But this method is used to inspect need to keep benchmark cylindrical and A coaxial degree is not greater than zero, or measured value is not correct. Obviously this method is not accurate, and it takes about 15 ~ 20 min. Second, rapid test because this kind of flange is mass production, the scene is assembly line processing, can't be delay due to test production, so you need to quickly detect fixture ( See figure 2) 。 This fixture is suitable for slot flange, symmetry detection slot. Before use, first install the flange fixed axis on heart, and then the chamfer flange with convex set close together, on the base of the flange groove side against T convex surface, move the dial indicator measuring head flange plate in contact with the mandrel petiole, to move slowly read A maximum; Then reverse flange so trough on the other side close to T convex surface, mobile read maximum B flange. A - B | | is symmetry. Through this fixture, most just 2 minutes can rapidly and accurately measure the symmetry of slot flange plate. Not only can improve the detection speed of workpiece, but also can reduce the technical level of workers, and improve the processing efficiency of the assembly line at the same time. Source: the metal processing ( Cold working) Cold working. 2017 ( 22)