The invention relates to an automobile body part, in particular to a thread structure on an aluminum alloy casting. The thread structure comprises an aluminum alloy casting body, a plurality of steel nut sleeves are arranged on the aluminum alloy casting body, and the steel nut sleeves and the aluminum alloy casting body are cast into a whole. Before the aluminum alloy casting body is subjected to die-casting production, the steel nut sleeve is assembled in a die, in the die-casting process, aluminum alloy casting melt is solidified to form threads meshed with external threads of the steel nut sleeve, and part forming and steel nut sleeve assembling are completed through one-time casting. The pre-embedded nut is adopted and cast into a whole, the requirement for high-precision machining of aluminum alloy casting threads is not needed to be met, the quality problem caused by assembly can be effectively avoided, and the requirement for repeated disassembly and assembly is met.
本发明涉及汽车车身部件,具体涉及一种铝合金铸件上的螺纹结构。该螺纹结构包括铝合金铸件本体,在所述铝合金铸件本体上设有多个钢质螺母套,所述钢质螺母套与铝合金铸件本体铸造为一体。在铝合金铸件本体压铸生产前,将钢质螺母套装配在模具中,压铸过程中铝合金铸件熔液凝固形成螺纹和钢质螺母套的外螺纹啮合,一次铸造完成零件成型和钢质螺母套装配。本发明采用预埋螺母并铸造于一体,无需满足铝合金铸件螺纹高精度机加要求,可有效避免装配带来的质量问题,满足多次拆装要求。
Thread structure on aluminum alloy casting
一种铝合金铸件上的螺纹结构
2022-10-04
Patent
Electronic Resource
Chinese
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
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