Method and device for testing abrasion derivation condition of single contact pin of robot electric connector
A technology of an electrical connector and a testing method, applied in the field of single-pin wear-resistant reliability testing of a robot multi-pin electrical connector, can solve the problems of pin failure and failure to deeply understand the reasons for connector failure in reliability testing.
Active Publication Date: 2020-06-26
HANGZHOU DIANZI UNIV
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Problems solved by technology
In this invention, the connector is regarded as a whole, but the actual realization of the function of the connector depends on the internal pins of the connector, so its failure is also the failure of its pins
Such a simple and rough test of the overall reliability of the connector cannot deeply understand the cause of the failure of the specific connector.
Method used
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[0052] The present invention will be further described below in conjunction with accompanying drawing.
[0053] like figure 1 As shown, an accelerated test device for wear evolution of robot connectors includes a mounting base plate 1, a longitudinal guide rail 3, a female end mounting assembly, a male end mounting assembly, and an electric slide table 4. The female end installation assembly includes a fixed base 5 , a female end fixing frame 6 , a plugging force sensor 7 and a female end installation block 14 . Two longitudinal guide rails 3 arranged at intervals are all fixed on the installation base plate 1 through guide rail mounting seats. The fixed pedestal 5 is fixed on the longitudinal guide rail 3 by set screws. The female end fixing bracket 6 is fixed on the fixing platform 5 by screws. One end of the insertion force sensor 7 is fixed to the top of the female end fixing frame 6 , and the other end is fixed to the female end mounting block 14 . The insertion force...
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The invention discloses a method and a device for testing the wear derivation condition of a single contact pin of a robot electric connector. Existing connector reliability tests cannot deeply understand specific connector failure reasons and obtain wear derivation curves of connectors. The method comprises the following steps: 1, establishing a test transverse and angle offset parameter set; 2,carrying out a model establishment test; 3, establishing a derivation model of the average volume of the grinding marks; 4, respectively establishing grinding mark derivation functions of the tested connector under two acceleration conditions; 5, selecting a finally used acceleration condition and derivation function through a fuzzy decision. According to the invention, the derivation model is established by taking angle offset and lateral offset as acceleration conditions; the optimal derivation model is selected in a fuzzy decision mode, the derivation model fully considers the influence ofthe installation precision of the contact pin on the wear resistance of the connector when the contact pin is installed on the connector, and the defects of an existing robot connector reliability test method are overcome.
Description
technical field [0001] The invention belongs to the technical field of reliability accelerated testing of multi-pin connectors, and in particular relates to a single-pin wear-resistant reliability testing method and device for a robot multi-pin electrical connector. Background technique [0002] As one of the indispensable components in the electrical system, the connector is the main tool to realize the transmission of electrical signals in different control circuits. The existence of the connector makes the huge project decomposed and can be composed of different smaller parts in a modular way. Therefore, the reliability of the connector is very important. At the same time, the role of connectors in the field of industrial robots is particularly important, and it is especially necessary to test the reliability of industrial robot connectors. In these reliability tests, the friction test of connectors is very important. All this is due to the small fretting friction of th...
Claims
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Login to View More IPC IPC(8): G01N3/56G06F30/20G06F30/17G06F111/10G06F119/04
CPCG01N3/56G01N2203/0005G01N2203/028G01N2203/0641G01N2203/0676G01N2203/0682
Inventor 倪敬任旭王悦瑾蒙臻
Owner HANGZHOU DIANZI UNIV