| 摘要 |
A mold core positioning device configured to position a mold core includes a base and a sleeve assembly. The base defines a receiving space. The sleeve assembly includes a hollow sleeve and a number of balls. A number of receiving holes are defined in a sidewall of the sleeve, and each of the receiving holes holds one of the balls, and each of the balls can rotate freely in a corresponding receiving hole. The sleeve is received in the receiving space, and the balls received in the sleeve is to hold the mold core in position with the balls contacting the mold core. |
