DE31970C

DE31970C - Stamping machine for the production of axes, pointed hammers and the like

Info

Publication number: DE31970C
Application number: DENDAT31970D
Authority: DE
Original assignee: J. W. BOWERS in Franklin, Grafsch. Norfolk, Massachusetts, V. St. A
Anticipated expiration: 1904-04-16

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

In beiliegender Zeichnung stellen dar:The attached drawing shows:

Fig. ι die Vorderansicht der Stampfmaschine; Fig. 2 eine Seitenansicht,Fig. Ι the front view of the ramming machine; Fig. 2 is a side view,

Fig. 3 einen Längenschnitt,3 shows a longitudinal section,

Fig. 4 den Grundrifs der Maschine mit abgenommenem Hammer und Stempel und4 shows the basic outline of the machine with the hammer and punch removed and

Fig. 5 die untere Ansicht des Hammers.Fig. 5 is the bottom view of the hammer.

A ist der Ambos, B sind die Ständer, zwischen denen der Hammer gehalten und geführt ist. C ist der Hammer und D die an A angebrachte Unterlage, welche so viel vorsteht, um die hinteren Enden der Klemmhebel α zu halten. Letztere drehen sich um Zapfen b b, welche sich durch ein Verbindungsstück c, das oben auf den Klemmhebeln ruht, erstrecken und auf D befestigt sind. Die Führungen des Verbindungsstückes c über den Zapfen b b können durch die mit den Muttern d¹ d^l versehenen Schrauben d d geschlossen werden. Um D möglichst leicht zu machen und um den Hammerschlag bequem entfernen zu können, ist D mit einer konischen Aussparung versehen, die sich vom Ambos bis nahe an das hintere Ende von -D erstreckt. An dem hinteren Ende von D sind die beiden Ansätze e angegossen, zwischen denen der mit horizontaler Nuth f¹ versehene Block f so eingepafst ist, dafs er leicht zwischen den. Ansätzen e hin- und hergleiten kann. In dem Block f befindet sich eine horizontale Aussparung f^l, deren hintere Seite parallel mit den Seiten des Blockes ist und deren vordere Seiten von der Mitte der Nuth ausgehen und einen Winkel von 45⁰ mit den Seiten des Blockes bilden. Durch die mit Köpfen g^l g·¹ und g·² g·² versehenen kurzen Verbindungsstücke g g, welche in der Aussparung f¹ ruhen, wird f mit den hinteren Enden der Hebel a verbunden. Ueber den Ansätzen e ist ein Deckstück L, welches die beiden Ansätze i tragt, fest angebracht. In i ist ein Stück k gelagert, welches mit dem bei i mit f in Verbindung stehenden Hebel / verbunden ist. Der untere Hebelarm von / ist durch die Stange /' mit dem um m¹ drehbaren und mit Handgriff versehenen Hebel m in Verbindung gebracht. η η sind die abnehmbaren und verstellbaren Matrizen, welche die Griffflächen der Klemmhebel α bilden und durch die. verstellbaren Klemmstücke n¹ n¹ an den Vorderenden der Hebel α gehalten werden. Das mit Ansatz o¹ versehene Stahlstück o, welches etwas breiter ist als die gröfste zu lochende Axtplatte oder dergleichen, hat in dem Ansatz o¹ eine Stellschraube und kann in einer in D angebrachten Nuth hin- und herbewegt werden. Auf dem hinteren Ende von ο ist ein Stück ρ angebracht, gegen welches die Axtplatten, wenn sie auf ο gelegt sind, anstofsen. Um dem Stück noch gröfsere Festigkeit zu geben, wird der obere Theil desselben in dem Verbindungsstück c geführt. Vor dem Hammer C ist in einer Führung der zur Aufnahme der Stampfeisen E bestimmte, mit Zungen r versehene Halter q eingepafst, welcher durch Keile .F festgehalten wird. Letztere sind durch Bolzen auf der Vorderseite des Hammers befestigt und . haben die Aussparungen s, um den Ansätzen A is the anvil, B are the stands between which the hammer is held and guided. C is the hammer and D is the pad attached to A , which protrudes enough to hold the rear ends of the clamping levers α. The latter rotate around pins bb, which extend through a connecting piece c, which rests on top of the clamping levers, and are fixed on D. The guides of the connecting piece c over the pin bb can be closed by the screws dd provided with the nuts d ¹ d ^l . In order to make D as light as possible and to be able to easily remove the hammer blow, D is provided with a conical recess that extends from the anvil to close to the rear end of -D. At the rear end of D the two projections e are cast, between which the block f provided with a horizontal groove f ^{1 is} fitted in such a way that it is easily between the. Approaches e can slide back and forth. In the block f there is a horizontal recess f ^l , the rear side of which is parallel to the sides of the block and the front sides of which extend from the center of the groove and form an angle of 45 ^° with the sides of the block. By means of the short connecting pieces gg provided with heads g ^l g · ¹ and g · ² g · ² , which rest in the recess f ¹ , f is connected to the rear ends of the levers a . A cover piece L, which carries the two approaches i , is firmly attached over the approaches e. In a piece i k is mounted, which is connected to the stationary at i f in connecting lever /. The lower lever arm of / is connected by the rod / 'to the lever m which is rotatable by m ¹ and provided with a handle. η η are the removable and adjustable matrices that form the gripping surfaces of the clamping levers α and through which. adjustable clamping pieces n ¹ n ^{1 are held} at the front ends of the lever α . The piece of steel o provided with attachment o ¹ , which is slightly wider than the largest ax plate or the like to be punched, has ^{an adjusting screw in attachment o 1} and can be moved back and forth in a groove in D. A piece ρ is attached to the rear end of ο , against which the ax plates, when placed on ο, rush. In order to give the piece still greater strength, the upper part of it is guided in the connecting piece c. In front of the hammer C , the holder q , which is provided with tongues r and which is intended to receive the tamping iron E and which is held in place by wedges .F, is fitted in a guide. The latter are fastened by bolts on the front of the hammer and. have the recesses s to the approaches

Claims

s ¹ s ¹ to allow a short up and down movement. At the bottom of the hammer C one or more springs t, Fig. 5, are attached, the ends of which grip over q and seek to keep the holder in constant contact with the upper surface of the guide in the hammer. On the holder q the tamper is held in a groove by two or more cross pieces u provided with adjusting screws ν . Between the uprights B and the clamping levers α , pieces of wood n> are attached on each side under the hammer in order to reduce the force of the blow if necessary.

How the machine works:
An ax plate or other object preformed on my closed-die forging machine, which is suitably heated, is placed between the matrices η η, the gripping surfaces of the clamping levers α with one edge at 0 , in such a way that its cutting side butts against the attachment ρ . Now the lever m is pulled forward and with it through the rod P and the lever I the block / guided between the approaches ee. As a result of this forward movement of f , the rear ends of the clamping levers α α are pressed apart by means of the connecting pieces gg and the front ends carrying the matrices η η are thereby brought closer.

This firmly clamps the object resting on 0. Now, when the hammer is released, the same tamping iron floating in the metal, which is about ^{_2/3 of} durchstofsen is its thickness.

Now the lever m is pressed slightly against the anvil and thus the pressure of the clamping lever on the ax, which makes it easier to withdraw the tamper E , is relieved to some extent. Now the hammer is raised. Since the tamper E is so firmly seated in the metal of the axle that the springs tt are not strong enough to pull it out, the holder q 'will remain in its present position, and the hammer C will slide with its guide on the holder q until the recesses ss of the wedges F attached to the hammer C butt against the ^{lugs s-1} s ^{l of} the holder. This sudden impact against the holder easily removes the tamper from the metal and the springs 11 of the holders bring it back into contact with the upper surface of the guide in the hammer.

Now the lever m is pressed completely against the anvil, thereby completely releasing the ax or the like, which is then turned so that the perforated edge comes down. If you let the hammer fall again after the ax is clamped again, the formation of the eyelet will be very perfect. The above-described operation is now repeated. In forming the eyelet of the ax, or any other object, the pounding iron will separate the metal into two parts of equal thickness, and drive them against the faces of the dies η η. This gives the object a perfect shape on both sides, which corresponds to the surfaces of the die used.

Compared to the previously known constructions, my machine uses a lot less force, waste of material is completely avoided and stamping out the eyelid happens so quickly that it can happen in the same heat in which the Ax plate was preformed.

Patent claims:
For a ramming machine:

ι. The combination of a drop hammer C with a vertically displaceable holder q, which has the projections s ¹ s ¹ , the wedges .F provided with recesses ss and attached to the hammer, and the springs 11 to keep the holder q always with the hammer C in Keep touch.

2. The by lever m, rod Z ¹ and lever / movable clamping lever α α , between whose exchangeable dies η η the ax plate or the like to be punched is held and the sides are formed, when punching the ax, pointed hammer or the like, allow them to expand, allowing the tamper to easily penetrate the metal.

For this purpose ι sheet of drawings.