The Research of Conical Bore Diameter Measuring Method and Tool Based on Incomplete Iron Hinges
It is difficult to measuring conical bore edge sizes (especially big-end)because of its special structure , so the paper put forward a measuring method and a measuring tool based on imaginary crossing point which measure by transforming the point-contact between foot rulers measuring plane and conical bore end plane into imaginary crossing point and installed digital display device . It can measure the conical bore edge sizes directly in field-working and read the value with digital display device directly and used convenience .Its structure is simple and has certain practical value.
Guozhong Chai, Congda Lu and Donghui Wen
X. Q. Chen et al., "The Research of Conical Bore Diameter Measuring Method and Tool Based on Incomplete Iron Hinges", Advanced Materials Research, Vols. 102-104, pp. 368-372, 2010