Journal of Jilin University(Engineering and Technology Edition) ›› 2024, Vol. 54 ›› Issue (8): 2167-2173.doi: 10.13229/j.cnki.jdxbgxb.20221332

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Simulation and experiment of elastic roughing for rubber shoe

Yang LIU()   

  1. College of Engineering and Design,Hunan Normal University,Changsha 410081,China
  • Received:2022-10-13 Online:2024-08-01 Published:2024-08-30

Abstract:

To address the problem of automatically roughening the sole with some contour error, an elastic roughing method is proposed. Firstly, the sole contour is divided into theoretical contour and manufacturing error. The mathematical model describing the sole contour is established. The theoretical contour of the sole is tracked by the two degree of freedom motion of the sole. The manufacturing error of the sole contour is adapted by the deformation of the grinding head under the contact action. Secondly, combining the force control of the grinding head with the motion control of the sole, the dynamic model of the elastic roughing mechanism is established. The contact force changes between the sole and the grinding head under different grinding head postures are simulated, and the key parameters of the elastic roughing are studied. Finally, the test system of sole elastic grinding mechanism is developed, and the feasibility and effectiveness of the elastic roughing of the sole are verified by experiments.

Key words: mechanical design and theory, rubber sole, contour error, elastic roughing, contact force simulation

CLC Number: 

  • TP242.3

Fig. 1

Rubber sole and contour curve with model BF1905-6B"

Table 1

Parameter table for Gauss fitting curve"

参数

角度范围[0,180o

拟合参数取值

角度范围[180 o,360o

拟合参数取值

a1-41.0263.94
b182.45278.6
c114.8927.53
a246.0153.77
b280.36244.4
c211.3636.43
a3100.856.86
b394.99301.3
c325.237.01
a447.8336.66
b4200.8178.9
c4273.446.37
a5-8.30626.71
b5166.9355.7
c517.2836.79

Fig. 2

Schematic diagram of two degrees of freedom grinding of sole"

Fig. 3

Principle diagram of elastic grinding"

Fig. 4

Principle of elastic grinding mechanism"

Fig. 5

Dynamic simulation model of sole grinding"

Fig. 6

Grinding simulation of different posture"

Fig. 7

Contact force and spring force of grinding head in different attitudes"

Fig. 8

Posture of sole and grinding head corresponding to peak contact force"

Fig. 9

Test system of two degree of freedom elastic grinding mechanism"

Fig. 10

Results of sole grinding test"

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