DE466637C - Process for the automatic manufacture of collectors - Google Patents

Description

GERMAN EMPIRE

ISSUED AIH OCTOBER 9, 1928

REICH PATENT OFFICE

PATENT LETTERING

M 466 CLASS 21 di GROUP

Process for the automatic manufacture of collectors Patented in the German Empire on January 11, 1925

With the usual manufacture of collectors up to now, you had to separate the individual segments Machining on both sides, also the assembly of the slats could not be done by a single one Operation to be carried out. In the manufacturing process that the present Invention is based, these disadvantages are eliminated. The segments that are arranged around insulating tubes

ίο produced by the fact that profile bars from Cross-section of the collector segments bundled with the interposed insulating strips and a single or multi-spindle automatic turret lathe, which the automatically performs the following operations in the order below. at a four-spindle machine z. B. is on the first spindle on the one from the chuck protruding segment bundle on off

a steel press ring thus fed to a magazine located on the front cross support pressed on. The end face of the segment bundle is turned in a dovetail shape on the second spindle and At the same time, part of the parting work is carried out on the upper, front cross support. The insulating bushing is drilled out on the third spindle and on the upper, rear one Cross support carried out another part of the parting work. On the fourth spindle the parting work is finished, so that the collector, which is finished according to its shape, which has a cohesion through the steel ring, falls off. At the same time is through one Overhaul mechanism, which is known per se, an overturning of the bundle of material made as far as the steel ring is pressed on during the operation ι so that an even seat of the steel ring is guaranteed. With a five-spindle machine the over-turning could be done on the fifth spindle. The collector is now installed in a single operation mounted by placing an insulating washer under a double-acting Eccentric press pulls in a hollow rivet while calibrating the outer circumference of the collector and the Steel ring strips off.

In summary, the method described creates the possibility of the entire collector can be produced in just two operations.

The first step is the all-round and simultaneous processing of all lamellas and Isolation particles of the collector on a fully automatic turret lathe simultaneous pressing of a steel ring that holds the individual parts together.

The second step takes place under a press. Here get the individual Segment particles through a 'hollow rivet, which is flanged under the press, their

*) The paientsiicher has given as the inventor:

Dipl.-Ing. Wolfgang Litten in Berlin.

4 (56637

Cohesion. The steel ring mounted on the automatic turret lathe is stripped off and the outer shape of the collector is calibrated at the same time.
In the accompanying drawing, Fig. Ι shows a section through a collector manufactured using the manufacturing method described.

α are the metal lamellas with milled ίο slots to accommodate the winding connections; b is the insulating tube; c and d represent the machined end faces, e the insulating washers, f the metal facade pressure washers and g the hollow rivet.

Fig. 2 shows a section through another embodiment having letters same meaning as in Fig. 1.

Fig. 3 shows the section AB of the same embodiment.

Fig. 4, 5 »6) 7 show the work schematically the tools as they are on the four spindles in direct connection with one another be made.

Fig. 8 shows schematically the effect of the double-acting. Eccentric press.

Claims (2)

Patent claims: i. Method for the automatic production of collectors, characterized in that, that profile rods from the cross section of the collector segments and the necessary insulation material supplements bundled and fed to a single or multi-spindle automatic turret lathe be, which separates the individual collectors from the bundle of rods after pressing rings and they machined on all sides at the same time. 2. The method according to claim 1, characterized in that the attachment of the lateral insulating washers, the compression rings and the metal hub on the lamellas held together by the compression rings takes place in one operation by machine. For this purpose ι sheet of drawings