The Periodical Translocation Gear-Grinding Technique to Improve the Indexing Accuracy of Ultra-Precision Gears

Si Ying Ling; Zhi Feng Lou; Qiang Liu; Li Ding Wang

doi:10.4028/www.scientific.net/AMR.941-944.2134

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 941-944The Periodical Translocation Gear-Grinding...

The Periodical Translocation Gear-Grinding Technique to Improve the Indexing Accuracy of Ultra-Precision Gears

Abstract:

The ultra-precision master gears have important application in calibrating high precision gear measuring instruments or coordinate measuring machines and in military industry. Firstly based error interference of the angle-transferring curve, the periodical translocation technique (PTT) of gear-grinding to improve the indexing accuracy of ultra-precision gears is proposed. The conclusions are drawn by precision experiment: (1) controlling 2/3~3/4 of total teeth participating in regrinding process can obtain the smaller total cumulative pitch deviation; (2) with increasing of the number of teeth participating in regrinding processes, the effects on single pitch deviation is more obvious. Finally, the total pitch deviation F_p of the specimen reaches to 0.79 μm (2.7′′), and the single pitch deviation f_p reaches to 0.30 μm (1.0′′) by adopting PTT technique and both of them reaches to submicron level.The precision gear-grinding experiments show the efficiency and practicability of the PTT technique.