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我厂计量室根据JJG21-86千分尺检定规程的要求,设计制作了一个简易测力装置,经使用效果较好。测力装置的结构如图所示:车出一个长60mm,外径φ12mm,内径φ9mm,盲孔深度为57mm的钢管2;然后在钢管两侧对称锉出长30mm宽9mm的长方形缺口,再锉出30×6mm的通槽及如图左G所示缺口。以上管体加工完后,在管体内装进两个千分尺压簧,再装上两个φ9mm,长分别为6mm和5mm的堵1,两簧中间装上卡尺微动螺丝4和圆柱螺母5,上下四个卡尺螺母3作为调整滑动间隙用,在本体上左右各刻二条刻线7,相应满足3～5N和
I plant measurement room according to JJG21-86 micrometer test procedures, the design and manufacture of a simple force measuring device, the use of better. Force measuring device structure as shown: car out of a length 60mm, outer diameter φ12mm, diameter φ9mm, blind hole depth of 57mm steel pipe 2; and then symmetrically filigted on both sides of the steel pipe 30mm long and 9mm wide rectangular notch, and then file Out of 30 × 6mm through the slot and the gap shown in Figure G left. After the above tube is processed, the tube is loaded with two micrometer pressure spring, and then loaded with two φ9mm, respectively 6mm and 5mm length of the plug 1, the middle of two spring mounted caliper micro-screw 4 and 4 cylindrical nut, Up and down four caliper nut 3 as a sliding adjustment with clearance on both sides of the body engraved two engraved lines 7, corresponding to meet 3 ~ 5N and