DE897394C - Device for the production of sheet metal cuts for variable capacitors - Google Patents

Device for the production of sheet metal cuts for variable capacitors

Info

Publication number
DE897394C
DE897394C DEN4358A DEN0004358A DE897394C DE 897394 C DE897394 C DE 897394C DE N4358 A DEN4358 A DE N4358A DE N0004358 A DEN0004358 A DE N0004358A DE 897394 C DE897394 C DE 897394C
Authority
DE
Germany
Prior art keywords
sheet metal
production
variable capacitors
cuts
metal cuts
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.)
Expired
Application number
DEN4358A
Other languages
German (de)
Inventor
Wilhelm Moessner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELEKTROWERK GmbH
NSF NUERNBERGER SCHRAUBENFAB
Original Assignee
ELEKTROWERK GmbH
NSF NUERNBERGER SCHRAUBENFAB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ELEKTROWERK GmbH, NSF NUERNBERGER SCHRAUBENFAB filed Critical ELEKTROWERK GmbH
Priority to DEN4358A priority Critical patent/DE897394C/en
Application granted granted Critical
Publication of DE897394C publication Critical patent/DE897394C/en
Expired legal-status Critical Current

Links

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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • 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
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/14—Dies

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Description

Bekanntlich werden die Blechschnitte, aus denen die Statoren und Rotoren von Drehkondensatoren zusammengesetzt sind; aus feingewalzten, eng tolerierten Blechstreifen ausgestanzt. Dabei läßt es sich nicht vermeiden, daß die Schnitte nach dem Stanzen in geringem Maße verbogen sind. Bei den einzelnen Blechen beträgt die Verbiegung wohl nur geringe Bruchteile eines Millimeters. Im zusammengebauten Zustand entstehen jedoch Verwerfungen der Kondensatorkurve. Diesem Nachteil wurde bisher dadurch begegnet, daß die Kondensatorblechschnitte nach dem Stanzen meinem besonderen Arbeitsgang planiert und nach dem Zusammenbau noch einmal nachgerichtet wurden.As is well known, the sheet metal cuts that make up the stators and rotors composed of variable capacitors; made of finely rolled sheet metal strips with close tolerances punched out. It cannot be avoided that the cuts after punching are slightly bent. In the case of the individual sheets, the amount of deflection is probably only a small fraction of a millimeter. Arise in the assembled state however, distortions of the capacitor curve. This disadvantage has so far been countered by that the capacitor sheet metal cuts after punching my special work process leveled and readjusted again after assembly.

Gemäß der Erfindung wird zur Herstellung der Blechschnitte eine Vorrichtung benutzt, bei der die zum Ausstanzen ,der Schnitte dienenden scharf geschliffenen Ober- und Unterstempel mit einer Prickelung versehen sind.According to the invention, a device is used for producing the sheet metal cuts used, in the case of the sharply ground ones used for punching out the cuts The upper and lower stamps are tinged.

Die Erfindung sei nachfolgend an der Figur der Zeichnung beispielsweise näher beschrieben. Oberstempel i und Unterstempel 2 sind mit einer Pnickelung, @d. h. mit kleinen kegelförmigen Warzen 3 versehen. Die Höhe der Warzen 3 ist etwa o,i bis 0,3 mm. Die Herstellung der Prickelung der Stempel i und 2 kann durch Schleifen oder Ätzen erfolgen, wobei im fertigen Werkzeug entweder die Spitzen der Warzen 3 aufeinanderzuliegen kommen oder die Spitzen in die entstehenden Zwischenräume eingreifen können. Zwischen Ober- und Unterstempel, die scharf geschliffene, der Form des Blechschnittes entsprechende Kanten besitzen, wird ein Blechstreifen 4 eingeführt. Beim danach folgenden Stanzen werden Ober- und Unterstempel zusammengedrückt und anschließend in die entsprechend ausgebildete Matrize 5 eingestoßen. Durch die an Ober- und Unterstempel angebrachte Prickelung wird nicht nur ein Verbiegen des Bleches q. beim Stanzen vermieden, sondern der Blechschnitt wird bei dieser Art der Herstellung auch noch planiert.The invention is based on the figure of the drawing, for example described in more detail. Upper stamp i and lower stamp 2 are nickel-plated, @d. H. provided with small conical warts 3. The height of the warts 3 is about o, i up to 0.3 mm. The production of the tingling of the stamps i and 2 can be done by grinding or etching, with either the tips of the warts in the finished tool 3 come to lie on top of each other or the tips in the resulting spaces can intervene. Between the upper and lower stamp, the sharply ground one, the Have edges corresponding to the shape of the sheet metal cut, a sheet metal strip 4 introduced. During the punching that follows, the upper and lower punches are pressed together and then pushed into the correspondingly designed die 5. Through the Tingling attached to the upper and lower punch will not only cause the Sheet q. avoided when punching, but the sheet metal cut is with this type the production also leveled.

Die Erfindung ist nicht auf die Herstellung von Blechschnitten für Kondensatoren beschränkt, sondern kann überall da zur Anwendung kommen, wo Blechplatten gleichzeitig ausgestanzt und planiert werden sollen.The invention does not apply to the production of sheet metal cuts for Capacitors are limited, but can be used wherever sheet metal plates are to be punched out and leveled at the same time.

Claims (3)

PATENTANSPRÜCHE: i. Vorrichtung zur Herstellung von Blechschnitten für Drehkondensatoren, dadurch gekennzeichnet, daß die zum Ausstanzen der Schnitte dienenden scharf geschliffenen Oberuni Unterstempel mit einer Prickelung versehen sind. PATENT CLAIMS: i. Device for the production of sheet metal cuts for variable capacitors, characterized in that the for punching out the cuts Serving sharply ground Oberuni lower stamp provided with a tingling are. 2. Vorrichtung zur Herstellung von Blechschnitten für Drehkondensatoren nach Anspruch i, dadurch gekennzeichnet, daß die Prickelung (3) auf den Ober- und Unterstempeln (i, 2) durch Ätzen oder Schleifen hergestellt ist. 2. Device for the production of sheet metal cuts for variable capacitors according to Claim i, characterized in that the prickling (3) on the upper and lower punches (i, 2) is made by etching or grinding. 3. Verfahren zur Herstellung von Blechschnitten für Drehkondensatoren mit einer Vorrichtung nach Anspruch i oder 2, dadurch gekennzeichnet, daß die Blechschnitte in einem Komplettschnitt gleichzeitig ausgestanzt und planiert - werden.3. A process for the production of laminations for variable capacitors with a device according to claim i or 2, characterized in that the laminations are punched simultaneously in one complete section and planed - be.
DEN4358A 1951-08-31 1951-08-31 Device for the production of sheet metal cuts for variable capacitors Expired DE897394C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEN4358A DE897394C (en) 1951-08-31 1951-08-31 Device for the production of sheet metal cuts for variable capacitors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN4358A DE897394C (en) 1951-08-31 1951-08-31 Device for the production of sheet metal cuts for variable capacitors

Publications (1)

Publication Number Publication Date
DE897394C true DE897394C (en) 1953-11-19

Family

ID=7338296

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN4358A Expired DE897394C (en) 1951-08-31 1951-08-31 Device for the production of sheet metal cuts for variable capacitors

Country Status (1)

Country Link
DE (1) DE897394C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487244A1 (en) * 1980-07-23 1982-01-29 Michel Rosenbaum Hand held clipper for vehicle parking indicator cards - has male and female slot cutting contours on arms which engage without play

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487244A1 (en) * 1980-07-23 1982-01-29 Michel Rosenbaum Hand held clipper for vehicle parking indicator cards - has male and female slot cutting contours on arms which engage without play

Similar Documents

Publication Publication Date Title
EP0162508B1 (en) Process and apparatus for making multilayer ceramic capacitors
DE1452590C3 (en) Process for making dry shaving foils
DE917626C (en) Iron body made of layered sheet metal for electrical machines and devices
DE897394C (en) Device for the production of sheet metal cuts for variable capacitors
DE2042775C3 (en) Filling for loading from a flat blank
DE651470C (en) Metallic catalyst
DE2753800C3 (en) Process for the production of a deep-drawn part from a square blank
DE469323C (en) Process for the production of relief plates, in particular signs with raised or recessed letters and numbers
DE478722C (en) Process for the production of corrugated iron nails
DE850954C (en) A method of forming bumps on parts punched out of hardened synthetic resin laminate sheets and a synthetic resin laminate board made thereafter
DE622703C (en) Vending machine token
AT264264B (en) Process for the production of soft-solderable metal housings
DE597907C (en) Method for making holes with reinforced edges in iron sleepers
DE3533356C1 (en) Electrical plug contact part, and method for producing the same
DE852575C (en) Manufacture of webs to be fastened vertically on a sheet metal with the help of rivets
DE541618C (en) Process for the production of upholstery cushions with edge pressure for cushioning pressure-sensitive goods and goods packages
DE358305C (en) Method and device for making drawing board pencils etc.
DE339347C (en) Process for the production of shoe protectors
DE857270C (en) Process for the production of punched and pressed claw plugs from sheet metal for connecting pieces of wood lying on top of one another
DE485097C (en) Process for the production of laundry button parts with the material strips being fed through a set of dies
DE698791C (en) Process for the production of drawing pins, pins, badges or the like.
DE384488C (en) Process for the production of head nails with a shaft riveted on both sides
DE764642C (en) Device for cutting out shapes, in particular round blanks for motor vehicle wheels, with a strip waste cutter
DE827406C (en) Glazed sheets and processes for their manufacture
AT134563B (en) Process for the production of pliable seals and sealing plate produced by this process.