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内径千分尺长期使用后圆头磨损,芯棒的长度就会不符合标准,使整个千分尺报废。我厂计量人员运用搓延原理,设计制造了一台小型芯棒轧长机,使用效果良好。用90瓦电机(每分钟1400转)带动传动比为1:20的蜗轮减速机,通过偏心盘装置使旋转运动变成直线运动,这样上工作板就作往复搓动。旋转推杆能使下工作板向前同时向上移动,由于上工作板往复搓动,下工作板不断向上顶紧,这样夹在中间的芯棒只要一两分钟就能伸长,达到修复的目的。轧
After the long-term use of inner diameter micrometer wear round head, mandrel length will not meet the standards, so that the entire micrometer scrapped. I plant measurement personnel use rolling extension principle, design and manufacture of a small mandrel rolling machine, the use of good results. With a 90-watt motor (1400 rpm) drives a worm reducer with a gear ratio of 1:20, the rotary motion becomes a linear motion through the eccentric disk device, so that the upper working plate reciprocates. Rotating the push rod enables the lower working plate to move upwards at the same time. Because the upper working plate reciprocates and rubs, the lower working plate keeps pushing up tightly, so that the mandrel clamped in the middle can stretch for only a minute or two to reach the purpose of repair. Rolling