| 摘要 |
1,191,568. Making wheels; stamping; drilling machines. GROTNES MACHINE WORKS Inc. 18 Nov., 1968 [14 June, 1968], No. 54621/68. Headings B3A, B3B, B3C and B3Q. Apparatus for forming metal articles by radial contraction, e.g. wheel blanks 21, and for performing an auxiliary operation on an article held in the contracting dies 17, comprises a frame 12, a forming head 10 having the dies 17 and internal auxiliary tooling 26, power means 20 for contracting the dies, and an article feeding station beneath the dies, the forming head being rotatable in the frame about a horizontal axis through at least 90 degrees to facilitate maintenance on the underside of the head. As shown, heads 10, similar to those described in Specification 1,189,589, are mounted on trunnions 11 on which they may be turned, after removal of a locking pin 32, by electromotors 31 which drive pinions 28 meshing with toothed segments 27 on the heads. Feeding and transferring.-A powered rollertable 22 delivers articles to whichever end of a transfer shuttle 23 is located centrally between the heads 10. The shuttle transfers the article towards the head not having one of the shuttleends therebeneath. The article is then raised into the head by one of the hydraulicallyoperated tables 24, and the shuttle moves in the opposite direction to supply the other head. After completion of the working and cutting operations, the table 24 lowers the article which is then pushed on to an inclined discharge table 25 by the shuttle 23 as this positions another workpiece beneath the head. The auxiliary operation may be a reaming operation performed on the mounting holes in the wheel hub. |
