31-01-2019 дата публикации
Номер: US20190033159A1
The invention provides an aluminum alloy hub positioning fixture. The aluminum alloy hub positioning fixture adopts an upper trapezoidal metal taper sleeve and a lower trapezoidal metal taper sleeve, the lower trapezoidal metal taper sleeve is in contact with the central hole of a hub, and the upper trapezoidal metal taper sleeve is in contact with the cap section of the hub; the lower trapezoidal metal taper sleeve is mounted on a hollow shaft, and a metal pipe is arranged in the middle of the hollow shaft. During working, the hub is positioned and mounted on the lower trapezoidal metal taper sleeve via the central hole, the upper trapezoidal metal taper sleeve is in vertical contact with the cap section of the hub under the action of a cylinder. 1. An aluminum alloy hub positioning fixture , comprising a vacuum extraction system , a vacuum gauge , electromagnetic valves , a compressed air system , a pressure gauge , a metal hose , a belt pulley , a metal pipe , an upper rotating shaft , an upper cylinder , a lower cylinder , a servo , a bearing seat , a belt , a lower rotating shaft , rubber sheaths , a trapezoidal taper sleeve A , a trapezoidal taper sleeve B and a bearing seat.2. The aluminum alloy hub positioning fixture of claim 1 , the rubber sheaths are mounted on the surfaces of both the trapezoidal taper sleeve A and the trapezoidal taper sleeve B.3. The aluminum alloy hub positioning fixture of claim 1 , the trapezoidal taper sleeve A and the trapezoidal taper sleeve B are in a metal step shape with each layer having a taper claim 1 , and are configured to be applied to hubs having different central hole sizes.4. The aluminum alloy hub positioning fixture of claim 1 , when the vacuum extraction system extracts vacuum claim 1 , the vacuum degree is 3-5 Pa.5. The aluminum alloy hub positioning fixture of claim 1 , when the compressed air system charges air claim 1 , the air charging pressure is 0.3-0.6 MPa.6. The aluminum alloy hub positioning fixture of ...
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