Abstract
Peg-in-hole is one of the most frequent mating features between parts, where the large friction resistance and poor contact situations result in the failure of part mating. To address this problem, this paper proposes a screw insertion method in peg-in-hole assembly for axial friction reduction. First, the effect of screw motion on axial friction reduction is analyzed with point contact and face contact. Second, the screw insertion method in clearance-fit peg-in-hole assembly with point contact is discussed; this method works better than the conventional linear insertion method for jamming prevention; the reciprocate screw insertion strategy is also investigated to reduce the influence of axis offset on screw insertion. Third, the screw insertion method in interference-fit peg-in-hole assembly with face contact is discussed. Finally, axial friction reduction is validated with experiments of point contact with screw motion and experiments of screw insertion in clearance-fit and interference-fit peg-in-hole assembly.
| Original language | English |
|---|---|
| Article number | 8863370 |
| Pages (from-to) | 148313-148325 |
| Number of pages | 13 |
| Journal | IEEE Access |
| Volume | 7 |
| Early online date | 9 Oct 2019 |
| DOIs | |
| Publication status | Published - 2019 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2013 IEEE.
Funding
This work was supported in part by the National Key Research and Development Program of China under Grant 2017YFC0822204, in part by the National Natural Science Foundation of China (NSFC) under Grant U1613205 and Grant 51675291, and in part by the State Key Laboratory of China under Grant SKLT2018C04.
Keywords
- friction reduction
- Peg-in-hole assembly
- robotic assembly
- screw motion