Abstract
Stamping tools play an important role in the stamping process, which directly influences product quality and production efficiency. To evaluate and manage these tools, tool lifetime expressed in terms of the number of times of tool reciprocating motion is an indispensable parameter. Traditional methods for counting tool movements employ mechanical counting devices with presses. In this paper, a new counting method based on the acceleration signals of tool movement is presented that involves installing an acceleration sensor on the tool itself. In order to reduce the effect of noise signals, a Butterworth low-pass filter was first applied to the collecting signals. Then, based on the analysis of the filtering signals of four typical tool motion modes, DPV and T in the return segment of every cycle, also termed uniqueness, are introduced as the threshold parameters. Finally, a count algorithm based on the dynamic threshold values is studied to count tool movement. To verify the accuracy of the counting method, eight typical motion modes of stamping tools were tested. The results show that the proposed method is effective for counting tool movements in various tool motion modes.
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Funding
This research is supported by National Science & Technology Major Project of China (Grant No.2018ZX04024001-004) and National Natural Science Foundation of China (Grants 51875351 and 51575345).
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Cao, Y., Xiang, H., Zhuang, X. et al. A new counting method based on the acceleration sensor for stamping tools. Int J Adv Manuf Technol 110, 2143–2154 (2020). https://doi.org/10.1007/s00170-020-05967-7
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DOI: https://doi.org/10.1007/s00170-020-05967-7