我们知道,主爪卡盘的卡尼与盘丝二者齿距误差的大小,直接影响三爪卡盘的质量。过去,我们制造卡爪与盘丝时,只用极限量规测量阴牙的尺寸,因而不能保证三爪卡盘的质量,致使现厂工作产生困难。因为只测量阴牙的尺寸,并不有保证齿距的正确性,也就是说,既使牙的尺寸完全合格而齿距之 We know that the main claw chuck Kanney and Pan Si both pitch error size, a direct impact on the quality of the three-jaw chuck. In the past, when manufacturing jaws and coils, the limit gauges were used to measure the size of the negative teeth and therefore the quality of the three-jaw chuck could not be guaranteed, which made the factory work difficult. Because only the measurement of the size of the teeth, does not guarantee the correctness of pitch, that is, even if the tooth size is fully qualified and pitch