Dial gauge brief introduction

01mm. The structural principle of dial gauge is shown 1 times like the graph. Should measure lever 1 up or when be down mobile 1mm, drive thumb needle through positive drive system 5 turn circuit, little finger needle 7 turn one case. Dial is in circumferential on have case of 100 divide into equal parts, the reading value of each case is 0.

01mm. Every case reading is little finger needle L Rnm. The variation of reading of the index when measuring is size variation quantity namely. Dial is OK and rotational, so that measure when thumb needle aims 0 reticle. The reading method of dial gauge is: The graduation mark that reads little finger needle to had turned first (namely millimeter is integral) , the graduation mark that reread thumb needle has turned (namely decimal part) , multiply with 0.

01, next both addition, get measures numerical value namely. Normal Align=center> pursues 1 dial gauge and transmission principle Normal >2. Use with note Normal > (1) the use dial gauge of dial gauge often is installed use on dial framework, if pursue,2 are shown. Graph Normal Align=center> pursues Normal > dial gauge can be used measure spare parts circularity, circle accurately the form such as jumpy, flatness, parallelism and linearity error, usable also will search workpiece, if pursue,3 are shown. (2) note 1) before using, should check the flexibility that measures lever activity. Drive gently namely when measuring lever, measure lever to want in the shift inside sleeve agile, not how make friends blocks a phenomenon, every time after the hand is loose, pressing with a finger can return former scale position. 2) when using, must secure dial gauge in reliable clip to hold frame on. Must not covet save trouble, informal clip is in not firm place, cause easily otherwise measure an outcome not accurate, or throw bad dial gauge. 3) when measuring, do not want those who make the journey that measures lever exceeds it to measure range, do not make express a head to bump suddenly to workpiece, also do not measure exterior surface roughness with dial gauge or have work unevenly significantly. 4) when measuring plane, the measurement of dial gauge lever wants as perpendicular as plane, measure cylindrical when workpiece, measure lever to want the central line with workpiece perpendicular, otherwise, will make measure lever to the activity is ineffective or measure an outcome not accurate. 5) for convenient reading, let thumb needle point to the null of dial commonly before measure. 6) dial gauge need not when, should make measure lever to be in free condition, lest make invalidation of the bedspring inside the watch. CNC Milling