Abstract
The fixture design of the bacteria bottle plays a vital role in designing a bottled fungus picking robot to save labor cost in the picking process of bottled fungus. This paper proposed a kind of clamping element design method based on regression models. Several sets of clamping elements were designed according to the appearance data of bacteria bottle. A single-factor test was conducted by using these clamping elements, and three levels of every factor were selected to obtain the desired values of clamping elements. Then, a Box–Behnken test was performed by selected levels. The established regression models described a numeric relationship between the variation of vital measurement points and all variation sources under a precise clamping element layout. To solve the problems in obtaining the direct parameters, a response surface method was presented based on the regression models. Finally, a test was used to demonstrate the effect of the optimized clamping elements when clamping a bacteria bottle. Through the related analysis and optimization, it was demonstrated that the holding effect of the clamping elements was the best under these conditions: the inner arc area was 4948 mm2; the downward displacement was 1.48 mm; and the rubber thickness was 3.69 mm. It showed that the proposed method was feasible, and the assembly quality after optimizing had been greatly improved. It can provide a reference for designing the bottle fixture of a picking machine.
Highlights
It is a fact that some mushrooms are cultivated by bacteria bottles in most edible fungus factories
According to the contours of the response surface, it showed that the ellipse’s curvature in Figure 9(b) was large. erefore, there was an interaction between the arc surface area of the clamping elements and the rubber thickness, and the interaction had a significant effect on the pressure of the bacteria bottle
We demonstrated that the clamping elements were designed and optimized by the mechanical test and response surface method. e desired values have a good agreement with the experiment. is suggests the feasibility of designing a fixture of a thin-walled pipe by using the method of our study process. e optimized clamping elements would be a valuable part of the application in designing a bacteria bottle fixture of the picking robot
Summary
It is a fact that some mushrooms are cultivated by bacteria bottles in most edible fungus factories. E mechanical properties of the clamping apparatus are analyzed to determine the structure with the fixtures of carbon fiber composites by the finite element method It could improve the working efficiency and reduced the labor intensity. There is no research on the fixture for holding bacteria bottles with fresh materials used to design clamping elements for the mushroom harvester. In designing a bottled mushroom picking robot, it is necessary to ensure that the bacteria bottles are clamped appropriately by the holding parts during the pull-out process of picking F. velutipes. Erefore, we presented a set of clamping elements and conducted a compression test, aiming to design a fixture used in exploiting a robot that can harvest the bottled F. velutipes by pull-out. Optimized parameters were corroborated by a confirmation test, which supplied a foundation for the bacteria bottle fixture design
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call