In order to solve the problem of difficult to install the framework oil seal in the short cylinder politeness harmonic gear drive,a pressure-fitting mechanism for framework oil seal is designed.The mechanism comprises a hand-wheel driving device,a smoothing moving device and a positioning pressing device.CAXA CAE is used to analyze the installation process and observe the stress states of the skeleton oil seal,so as to ensure that the pressure loading force will not damage the skeleton oil seal.Then a pro-totype is made and tested to verify the rationality and practicability of the press-mounting mechanism.The pressure mounting mechanism can ensure that the utilization rate of the skeleton oil seal can reach 99.17%,and the installation time is 0.655minper piece,which is 19.48%higher than that of the previous pure experience assembly,and the assembly time is 0.345min per piece shorter.The design of the mechanism can solve the problems such as spring falling off and lip tearing during the installation of the framework oil seal,and improve the utilization rate of the framework oil seal.
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