Steel plate spring rolling lug split type mandrel
A leaf spring, split technology, applied in the field of split mandrels, can solve the problems of low material utilization rate, increased manufacturing cost, long occupation time, etc.
Inactive Publication Date: 2012-12-12
诸城市恒信基汽车部件有限公司
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Problems solved by technology
[0002] Automobile leaf springs need to use the lug mandrel when rolling the lugs. The previous mandrels are all integrated, and the middle part is heated during use. Due to the dual effects of heat and pressure, it often needs to be replaced, and it takes a long time to replace.
Moreover, the material utilization rate of the shaft is very low during processing, which increases the manufacturing cost
Method used
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[0010] Such as figure 1 As shown, in the present invention, connecting bolts 2 are respectively provided at both ends of the core-pulling round shaft 1, and the shaft body cooling hole 3 runs through the axial center of the core-pulling round shaft 1, and is connected by connecting bolts 2 at one end of the core-pulling round shaft 1. There is connection connector 4. Through the above settings, the present invention is connected to the core-pulling cylinder of the winding earphone through the connection joint 4, and the cooling water is connected to the other end of the core-pulling shaft 1 to cool the core-pulling shaft 1 and realize the winding of the automobile leaf spring. Ear. When the core-pulling round shaft 1 of the present invention is worn out, only the core-pulling round shaft 1 needs to be replaced, which saves manufacturing costs.
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The invention discloses a steel plate spring rolling lug split type mandrel which is characterized in that a connection bolt is respectively arranged at two ends of a loose core round shaft, a shaft body cooling hole penetrates through the axial center of the loose core round shaft, and a connector is connected with one end of the loose core round shaft through a connection bolt. Therefore, the steel plate spring rolling lug split type mandrel can replace the loose core round shaft when the loose core round shaft is abraded and saves manufacture cost.
Description
technical field [0001] The invention relates to a split-type mandrel used for rolling lugs of automobile leaf springs. technical background [0002] Automobile leaf springs need to use the lug mandrel when rolling the lugs. The previous mandrels are all integrated, and the middle part is heated during use. Due to the dual effects of heat and pressure, it often needs to be replaced, and it takes a long time to replace. Moreover, the material utilization rate of the shaft is very low during processing, which increases the manufacturing cost. Contents of the invention [0003] The object of the present invention is to provide a split-type mandrel for leaf spring lugs. [0004] In order to achieve the above object, the present invention provides connecting bolts at both ends of the core-pulling shaft, the shaft body cooling hole runs through the axial center of the core-pulling shaft, and a connecting joint is connected to one end of the core-pulling shaft through connecting ...
Claims
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IPC IPC(8): B21D37/00B21D11/10
Inventor 王宝山张培建
Owner 诸城市恒信基汽车部件有限公司