Discussion the Re-Use Precision Locknut of the Machine Tools Spindle in the Vertical Assembly Characteristics

Chih Ming Chen; Cheng Ho Chen

doi:10.4028/www.scientific.net/AMR.853.441

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 853Discussion the Re-Use Precision Locknut of the...

Discussion the Re-Use Precision Locknut of the Machine Tools Spindle in the Vertical Assembly Characteristics

Abstract:

This paper is to investigate the characteristics of re-use precision locknuts of the machine tools spindles in the vertical assembly under different effective diameters, locking axial forces and clasp screw locking torques in the static tests for the axial force change rates. The results with the new flank locking precision locknuts are compared to the re-use nuts with different values; we obtain the decline of axial force change rates from predetermined equations using regress analysis to conduct experimental forecasts. In the experimental results, plastic deformation has occurred in re-use nuts structure in the vertical spindle assembly. The decline of the axial force will be increased along with the nut size; and those of the re-use nuts decline more than the new nuts. Therefore, repetitive uses of the reuse nuts are not recommended.

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Periodical:

Advanced Materials Research (Volume 853)

Pages:

441-446

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.853.441

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Online since:

December 2013

Authors:

Chih Ming Chen*, Cheng Ho Chen

Keywords:

Axial Force, Change Rate, Clasp Screw Locking Torque, Flank Looking Precision Locknut

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