DE115961C - - Google Patents
Info
- Publication number
- DE115961C DE115961C DENDAT115961D DE115961DA DE115961C DE 115961 C DE115961 C DE 115961C DE NDAT115961 D DENDAT115961 D DE NDAT115961D DE 115961D A DE115961D A DE 115961DA DE 115961 C DE115961 C DE 115961C
- Authority
- DE
- Germany
- Prior art keywords
- jaws
- punch
- sheet
- designed according
- hollow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000001847 Jaw Anatomy 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 4
- 210000001503 Joints Anatomy 0.000 description 1
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 240000000528 Ricinus communis Species 0.000 description 1
- 230000001174 ascending Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Es sind Vorrichtungen zum Drücken hohler Blechträger bekannt, bei denen das seitliche Andrücken der Preisbacken an den mittleren Stempel durch ein von der Antriebswelle bethätigtes Hebelparallelogramm erreicht wird. Der mittlere Stempel wird ebenfalls von dieser Welle in Thätigkeit versetzt. Es sind also zwei getrennte Mechanismen vorhanden, die ihren Antrieb von einer Welle erhalten. Es wird auch das Andrücken des Bleches durch rollende Backen erreicht, die von der Antriebswelle durch ein System von Rahmen, Zahnstangen und Zahnrädern bewegt werden.There are known devices for pressing hollow sheet metal supports, in which the lateral The award jaws are pressed against the center punch by a device actuated by the drive shaft Lever parallelogram is reached. The middle stamp is also from this one Wave put into action. So there are two separate mechanisms that get their drive from a shaft. It will also push the sheet through rolling jaws reached from the drive shaft through a system of frames, racks and gears are moved.
Die vorliegende Erfindung besteht aus einem auf- und abgehenden Stempel α, welcher der inneren Form des Hohlträgers entsprechend ausgebildet ist, und aus zwei zusammenklappbaren Backen b, welche in zusammengeklappter Stellung mit ihren Druckflächen das äufsere Profil 'des · Hohlträgers bilden. Diese Backen b führen sich zwischen festen Gleitrollen c (Fig. 2, 3, 5 und 6), oder sie drehen sich scharnierartig um feste Punkte d (Fig. 1), oder sie werden durch kniehebelartige Gelenke/ (Fig. 4) geführt.The present invention consists of an ascending and descending punch α, which is designed according to the inner shape of the hollow beam, and of two collapsible jaws b, which in the folded position with their pressure surfaces form the outer profile 'of the hollow beam. These jaws b run between fixed castors c (Fig. 2, 3, 5 and 6), or they rotate in a hinge-like manner around fixed points d (Fig. 1), or they are guided by toggle-like joints / (Fig. 4).
Die Arbeitsweise der Vorrichtung ist folgende: The operation of the device is as follows:
Bei aus einander geklappten Backen b und aufgehobenem Stempel a, wird der Blechstreifen , aus welchem der Träger gedrückt werden soll, mitten auf die Backen gelegt (Fig. ι a bis 6 a), der Stempel α bewegt sich langsam abwärts und drückt den Blechstreifen so weit ein, bis die untere Fläche desselben auf dem Gelenk der beiden Backen angekommen ist, wodurch die Backen noch nicht in Thätigkeit treten (Fig. ib bis 6 b). Drückt nun der Stempel das Blech tiefer, so klappen die beiden Backen, geführt durch die äufseren Stützpunkte, oben zusammen; die inneren Druckflächen der Backen b umfangen die Form des Stempels a und der in tiefster Stellung zwischen beiden verbleibende Zwischenraum bildet das Profil des Hohlträgers (Fig. 1 c bis 6 c). Der Stempel α bewegt sich jetzt wieder in die Höhe, die Backen klappen wieder aus einander, der Hohlträger wird frei und wird in seiner Längsrichtung abgezogen.When the jaws b are folded out and the punch a is lifted, the metal strip from which the carrier is to be pressed is placed in the middle of the jaws (Fig. Ι a to 6 a), the punch α moves slowly downwards and presses the metal strip so until the lower surface of the same has reached the joint of the two jaws, whereby the jaws do not yet come into action (Fig. 1b to 6b). If the punch now pushes the sheet lower, the two jaws fold together at the top, guided by the outer support points; the inner pressure surfaces of the jaws b encompass the shape of the punch a and the space remaining in the lowest position between the two forms the profile of the hollow beam (Fig. 1 c to 6 c). The punch α now moves upwards again, the jaws fold out from each other again, the hollow beam is released and is pulled off in its longitudinal direction.
Bei dieser Vorrichtung bewirkt somit der vom Stempel auf das Werkstück ausgeübte Druck unmittelbar das seitliche Zusammendrücken der Prefsbacken, während dazu bei den vorerwähnten Maschinen theils besondere Mechanismen, theils schwierige Zwischengetriebe nothwendig sind. Durch die einfachere Bauart der Maschine wird ein sicheres und · schnelleres Arbeiten erzielt.In this device, the effect exerted by the punch on the workpiece Immediately press the lateral compression of the pre-jaws, while contributing to this The aforementioned machines have partly special mechanisms, partly difficult intermediate gears are necessary. Due to the simpler design of the machine, a safe and achieved faster work.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE115961C true DE115961C (en) |
Family
ID=385352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT115961D Active DE115961C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE115961C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2443596A (en) * | 1945-09-21 | 1948-06-22 | James E Cahill | Reciprocating bender with pivoted side shapers |
US2846819A (en) * | 1952-09-20 | 1958-08-12 | Pilkington Brothers Ltd | Apparatus for manufacturing toughened bent glass |
DE1452970B1 (en) * | 1964-06-03 | 1970-08-27 | Burndy Corp | DEVICE FOR ESTABLISHING CHOG JOINTS |
US5295384A (en) * | 1990-03-15 | 1994-03-22 | Lift Verkaufsgerate Gesellschaft M.B.H. | Sheet-metal bending device |
-
0
- DE DENDAT115961D patent/DE115961C/de active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2443596A (en) * | 1945-09-21 | 1948-06-22 | James E Cahill | Reciprocating bender with pivoted side shapers |
US2846819A (en) * | 1952-09-20 | 1958-08-12 | Pilkington Brothers Ltd | Apparatus for manufacturing toughened bent glass |
DE1452970B1 (en) * | 1964-06-03 | 1970-08-27 | Burndy Corp | DEVICE FOR ESTABLISHING CHOG JOINTS |
US5295384A (en) * | 1990-03-15 | 1994-03-22 | Lift Verkaufsgerate Gesellschaft M.B.H. | Sheet-metal bending device |
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