A sensor housing and its die-casting mold and die-casting process
A sensor housing and die-casting mold technology, which is applied to the casing of the measuring device, etc., can solve the problems of unqualified dimensional tolerances, increase production costs, and increase product pores, and achieve the effects of ensuring qualification, reducing glue volume, and reducing scrap rate.
Active Publication Date: 2021-11-26
惠州市华阳精机有限公司
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Problems solved by technology
[0004] At the same time, due to the inconsistent wall thickness of most of the existing sensor housings, the unreasonable structural design of the sensor housing will cause a high risk of thermal joints and shrinkage cavities in thick parts due to different solidification times during the solidification process. Further lead to the risk of unqualified all dimensional tolerances of the product; after die-casting, the internal pores of the product increase, the defect rate is high, and batch scrapping occurs, which greatly increases the production cost
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[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0026] In order to solve the above technical problems, this embodiment provides a sensor housing, such as figure 1 As shown, including the housing body 10, a cavity 11 is formed on one side of the housing body 10, a first boss 12 is formed in the housing body 10 located in the cavity 11, and second bosses 12 are formed on both sides of the first boss 12. The boss 13 and the trapezoidal boss 14, through mold flow analysis, add glue in advance where there is estimated deformat...
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Abstract
The present application relates to the technical field of sensor housing die-casting, in particular to a sensor housing and its die-casting mold and die-casting process. When designing the sensor housing through the compensation method, some depressions or inserts are artificially designed in the thicker area of the casting product to reduce the amount of glue, so that the thicker area tends to be balanced, reduce the amount of deformation, and ensure the overall dimensional accuracy. By adding different structures, it is possible to reduce the risk of hot spots and shrinkage cavities in the die-casting process, and ensure that the overall size of the casting is within the acceptable range. At the same time, by setting the feed nozzle on the side of the cavity and the core, the glue can be adjusted Position, by controlling the glue feeding position and glue feeding sequence to realize the control of casting filling timing, so as to control the deformation of the product and ensure the size of the casting is qualified, and then use the debugged suitable casting pressure and time and other process parameters to die-cast the sensor shell to ensure The casting size is acceptable.
Description
technical field [0001] The present application relates to the technical field of die-casting of sensor housings, in particular to a sensor housing, a die-casting mold and a die-casting process thereof. Background technique [0002] With the update of driving concepts, the status of driving safety and assisted driving has been paid more and more attention, and more and more intelligent products have been used in the field of automobile manufacturing. The complex traffic conditions in reality are well understood! Millimeter-wave radar has become an indispensable and important sensing element for smart driving cars because it can still provide reliable performance in various weather or light environments. [0003] The existing production process of millimeter-wave radar sensor housing castings is usually formed by die-casting and then processed by CNC to meet the requirements of high-precision dimensions. However, the problem with this production method is that the two-time fo...
Claims
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IPC IPC(8): C22C21/02B22D17/22C22F1/043G01D11/24
CPCC22C21/02B22D17/22B22D17/2272C22F1/043G01D11/24
Inventor 肖璇
Owner 惠州市华阳精机有限公司