Optimization design of forming mould forT-shaped rubber sealing ring
During the forming process of T-shaped rubber sealing ring of aircraft landing gear,the unreasonable selection of parting surface makes it difficult to remove the flash,easy to hurt the sealing surface of the sealing ring.The overflow groove is far away from the cavity,and the residu-al material can't be fully discharged,and the size is out of line.The material chamber,plunger an-gle is too large to waste raw materials.So,after analyzing the function of T-shaped rubber seal ring and optimizing the mould,the parting surface was designed at the connecting point between the arc and the straight flange of seal ring R0.5 mm.The overflow groove was designed as an isos-celes trapezoid,and the edge was 1 mm away from the cavity.It adopted small angle cone position-ing for the mould,which positioning accuracy was high to ensure the coaxiality.Also,the manufac-turing tolerance of each mould cavity was adjusted.Finally,the surface quality of the forming parts was high,the dimensional stability was good,the flash removal was simple and convenient,and the product pass rate was more than 98%.
T-shaped rubber seal ringparting surfaceoverflow groovecompression thermo-forming
万方数据
维普
