## 4 Example Verification  
### Experiment Materials and Device  
Figure 18a depicts the physical map of the experiment device after manufacture in accordance with the design drawings. The self-locking quick-press temporary fasteners were put on one side of two thin wall parts. These parts were composed of aluminum plate 7075, the same material as airplane plates. The experiment devices included one support frame, two aluminum plates, one pressure sensor, one amplifying conditioner, one 24 V power supply, one pressure gauge, and one quick-press and self-locking temporary fastener. Figure 17: Schematic diagram of the inner sleeve and the cylindrical top rod in the clamping state. Ensuring the reliability of temporary fastener connections requires the careful selection of materials for component processing, which directly affects the smoothness of movement between parts. This is particularly important for clamping claw components, which require materials with a certain level of flexibility to ensure their ability to expand and contract as well as to prevent fatigue failure and fracture. Some scholars have conducted research on related materials [21; 22; 23]. According to a study by [PERSON] et al. [24], the mechanical properties of PEEK 450 G were extensively investigated, including compressive, tensile, and Taylor impact properties, as well as large-strain compression tests and fracture toughness measurements. The study found that the mechanical response of PEEK 450 G is strongly dependent on strain rate and testing temperature. The authors also reported a previously observed darkening phenomenon in Taylor impacted samples, which was attributed to reduced crystallinity resulting from a large compressive strain. Additionally, the study found that reduced crystallinity was also found to decrease Vickers hardness. PEEK 450 G exhibits good toughness and can meet the basic requirements for temporary fastener clamping claw components. Springs are also vulnerable components that can be replaced at regular intervals or with higher-performance materials to effectively increase the service life of the fastener. Table 2 displays the necessary parameters of related parts. They were put together using aluminum profiles to form a support frame. In this experiment, a hole with a diameter of 5 mm was drilled into the thin wall parts, corresponding to the clamping jaw. Considering the influence of tolerance in assembly [25], the accuracy of this test hole is H8, to ensure that the claw part of the clamping claw can pass through the hole smoothly and that the claw can clamp the connecting plates when the claw taper expands. \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Main Parts** & **Material** & & **Related Size** \\ \hline Thin wall parts & Aluminum alloy 70\% & length 800 mm & width 500 mm & thickness 2.5 mm \\ \hline Cylindrical top rod & Stainless steel 316 L & length 80 mm & maximum diameter & minimum diameter & \\  & & 15.52 mm & 2.85 mm & \\ \hline Supporting spring & Stainless steel 304 & external diameter & internal diameter & Free-height 15 mm & Effective laps 3 laps & \\  & & 12 mm & 9.2 mm & Free-height 15 mm & Ultimate pressure & Ultimate compression \\ \hline Spring of ejector rod & alloy steel 55 Cfsi & \begin{tabular}{c} external diameter \\ 12.5 mm \\ \end{tabular} & \begin{tabular}{c} internal diameter \\ 8.5 mm \\ \end{tabular} & Free-height 15 mm & 40.2 N & \begin{tabular}{c} Ultimate pressure \\ \end{tabular} \\ \hline Return spring & Spring steel & \
\begin{tabular}{c} external diameter \\ 16 mm \\ \end{tabular} &
\begin{tabular}{c} internal diameter \\ 13.6 mm \\ \end{tabular} & Free-height 20 mm & Effective laps 3 laps & \\ \hline Body of fastener & Resin r4600 & maximum length & minimum length & diameter 30 mm & \\  & & 115.5 mm & 109.4 mm & \\ \hline Clamping claw & PEEK-450 G & length 15.5 mm & width 15.5 mm & height 38 mm & \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Main parameters of parts.