Aluminum alloy hub positioning fixture

Patent metadata

Field	Value
Publication number	US-10495539-B2
Application number	US-201715839171-A
Country	US
Kind code	B2
Filing date	Dec 12, 2017
Priority date	Jul 31, 2017
Publication date	Dec 3, 2019
Grant date	Dec 3, 2019

Abstract

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.

First claim

What is claimed is:

1. An aluminum alloy hub positioning fixture, comprising a vacuum extraction system, a vacuum gauge, first and second 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 motor, 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;
wherein the rubber sheaths are mounted on surfaces of both the trapezoidal taper sleeve A and the trapezoidal taper sleeve B;
the bearing seat is mounted between the upper rotating shaft and the upper cylinder; one end of the upper rotating shaft is configured to rotate axially around the bearing seat the trapezoidal taper sleeve B is mounted at another end of the upper rotating shaft via threaded connection;
the lower rotating shaft is a hollow shaft one end of the lower rotating shaft is connected with the trapezoidal taper sleeve A via a bolt, and another end of the lower rotating shaft is connected with the bearing seat via a bearing;
the lower rotating shaft is configured to rotate axially around the bearing seat; the metal pipe is assembled on an inner surface of one end, connected with the bearing seat, of the lower rotating shaft via a bearing; the belt pulley is mounted on an outer surface of one end, connected with the bearing seat, of the lower rotating shaft in an interference connection manner;
one end, connected with the trapezoidal taper sleeve A, of the metal pipe is assembled on an inner surface of the trapezoidal taper sleeve A via a bearing; one end, connected with the bearing seat, of the metal pipe is in threaded connection with the metal hose;
the vacuum gauge is mounted at front end of the vacuum extraction system, and the first electromagnetic valve is mounted at front end of the vacuum gauge; the pressure gauge is mounted at front end of the compressed air system, and the second electromagnetic valve is mounted at front end of the pressure gauge; the first electromagnetic valve and the second electromagnetic valve are connected with one end of the metal hose;
the servo motor is assembled together with the belt pulley via the belt;
one end of the lower cylinder is fixed on a base, the bearing seat is mounted at one end of a piston rod of the lower cylinder, and the servo motor is fixedly connected with the piston rod of the lower cylinder.

2. 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, and are configured to be applied to hubs having different central hole sizes.

3. The aluminum alloy hub positioning fixture of claim 1 , when the vacuum extraction system extracts vacuum, a vacuum degree is 3-5 Pa.

4. The aluminum alloy hub positioning fixture of claim 1 , when the compressed air system charges air, an air charging pressure is 0.3-0.6 MPa.

Assignees

• Citic Dicastal Co Ltd

Inventors

• Lv Jinqi
• Li Zhipeng
• Sun Hanbao
• Wang Zhuxing
• Jin Hongfu
• Zhu Yingwei
• Jiang Ling
• Zhu Zhihua

Classifications

• G01M3/329

  for verifying the internal pressure of closed containers · CPC title

• G01M17/013

  Wheels · CPC title

• B25B11/00 Primary

  Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders (for holding or positioning work for welding, soldering, or cutting by applying heat locally B23K37/04; specially adapted to machine tools B23Q3/00) · CPC title

• G01M1/16 Primary

  by oscillating or rotating the body to be tested · CPC title