The research of metal band sawing machine's sawing feed process plays a vital role in realizing sawing load forecasting and precise sawing control, among which the creep phenomenon caused by feed hydraulic drive and friction needs to be studied and solved.
Description
The research of metal band sawing machine's sawing feed process plays a vital role in realizing sawing load forecasting and precise sawing control, among which the creep phenomenon caused by feed hydraulic drive and friction needs to be studied and solved. Drive the cutting feed system.First, through the nonlinear dynamic analysis of the valve-controlled asymmetric cylinder, a hydraulic drive dynamic model of the saw frame is established.Second, the feed is established by combining the Stribeck friction model. Non-linear friction force model between the piston of the hydraulic cylinder and the inner wall; Finally, a two-part model is synthesized to propose a non-linear dynamic model of the sawing feed process of a metal band saw machine. Simulation and sawing feed experiments show that the proposed model is The sawing feed process is well described, and the conditions for the occurrence of creeping phenomena are given.
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