| 摘要 |
The purpose of the solution is to be able to press even a rather large T-piece using a simple method on standard pressing machines with simultaneous reduction of metal demands, reduced laboriousness in the process of machining, reduced consumption of cutting tools and increased labour productivity. The principle of the solution consists in the fact that a cavity of the moulding inserts (1, 2) is followed by a hole from the bottom. In the hole there is a moveably inserted and oppositely arranged extruding punch (7). The outer surface of these moulding inserts (1, 2) is conical and is inserted in a case (10) with an inner conical surface, to whose bottom face pressure springs are attached. In at least one moulding insert (1, 2) there is a radially positioned conical mandrel (15, 21). In the extruding punch (6, 7) there is a shaped hole (8) for a wedge. The extruding punch (6, 7) is equipped with a flange, between which and the moulding inserts (1, 2), or the case (10), pressure springs are inserted.<IMAGE>
|
