Impact Characteristics of Striker Mechanism of Lithium Pneumatic Nailer

LIU Boyang; JIANG Zenghui; ZUO Mingxiu; CHEN Xingkuan; LIU Shaoyang

doi:10.19554/j.cnki.1001-3563.2025.15.034

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Packaging Engineering ›› 2025, Vol. 46 ›› Issue (15) : 298-304. DOI: 10.19554/j.cnki.1001-3563.2025.15.034

Equipment Protection

Impact Characteristics of Striker Mechanism of Lithium Pneumatic Nailer

LIU Boyang¹, JIANG Zenghui^1*, ZUO Mingxiu², CHEN Xingkuan², LIU Shaoyang¹

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Abstract

The work aims to investigate the impact characteristics of a striker mechanism in a lithium pneumatic nailer during nailing, to provide a reference for further optimization of the striker mechanism. A simulation model of the nailing process was established based on explicit dynamics, and its reliability was verified through nail length of penetration experiments. The time-stress history of the striker mechanism and the piston during the nailing process was analyzed via simulation. The error between the simulated and the experimental penetration length was 3.01%, demonstrating good reliability of the simulation model. It was found that the stress of the striker mechanism and the piston was the greatest when the nail was about to penetrate the target plate. The maximum stress of the striker mechanism was 854.9 MPa, which was below the yield strength (1 375 MPa) of its material (60Si2Mn), meeting the strength requirement. The piston's stress was 88.272 MPa, also below the yield strength (470 MPa) of its material (7050-T7451), satisfying the strength requirement. In conclusion, the maximum stress concentration of the striker mechanism occurs at its rear tooth region, which undergoes the most significant impact loading during operation. To ensure structural integrity and service life, targeted reinforcement of the rear tooth should be implemented in both the design and manufacturing.

Key words

nailer / striker mechanism / length of penetration / stress / impact characteristics

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LIU Boyang, JIANG Zenghui, ZUO Mingxiu, CHEN Xingkuan, LIU Shaoyang. Impact Characteristics of Striker Mechanism of Lithium Pneumatic Nailer[J]. Packaging Engineering. 2025, 46(15): 298-304 https://doi.org/10.19554/j.cnki.1001-3563.2025.15.034

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