US3604297A - Method of manufacturing two concentric parts through die blanking of steel stripe - Google Patents

Method of manufacturing two concentric parts through die blanking of steel stripe Download PDF

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Publication number
US3604297A
US3604297A US854193A US3604297DA US3604297A US 3604297 A US3604297 A US 3604297A US 854193 A US854193 A US 854193A US 3604297D A US3604297D A US 3604297DA US 3604297 A US3604297 A US 3604297A
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US
United States
Prior art keywords
die
blanking
opening
workpiece
strip
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 - Lifetime
Application number
US854193A
Other languages
English (en)
Inventor
Vitaly Konstantinovich Gilev
Volf Nakhimovich Evzlin
Rafael Tevosovich Sarkisov
Ernst Arakelovich Stepanyan
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.)
Individual
Original Assignee
Individual
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
Priority claimed from SU1304654A external-priority patent/SU321312A1/ru
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3604297A publication Critical patent/US3604297A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/021—Magnetic cores
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/953—Particular nature of work or product with work support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0524—Plural cutting steps
    • Y10T83/0577—Repetitive blanking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/06—Blanking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2074—Including means to divert one portion of product from another
    • Y10T83/2081—Gravity type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/6476—Including means to move work from one tool station to another
    • Y10T83/6484—Punch or die station

Definitions

  • the other part workpiece is separated, transferred downwards and held above the lower die until the latter opens, the strip leftover is removed from the upper die matrix and the strip moved by a blanking pitch, a ready part being picked up from the die punch during the last period of said die opening.
  • the punches movement changes to reverse, the other part workpiece is let into the opening lower die and then placed on the die matrix, a ready pan blanked during the previous cycle being removed from the punch of said die.
  • FIG] METHOD OF MANUFACTURING TWO CONCENTRIC PARTS THROUGH DIE BLANKING OF STEEL STRIPE
  • the present invention relates to methods of manufacturing two concentric parts through die blanking of steel strips and can be used to manufacture the stator and rotor sheets of magnet wires for electric machines.
  • a cir cular part, stator sheet, as well as a central part serving as a rotor sheet workpiece are simultaneously blanked from a strip in the first (stator) die, the both parts being then removed from the blanking zone either manually or with the aid of some special arrangement and sorted out; rotor sheet workpieces are subsequently conveyed to another press fitted with a rotor die.
  • This method is realized on presses with compound dies arranged one above the other and with the vertically arranged blanking surfaces. The punches of these surfaces move reciprocally in opposite directions (of, USSR Authors Certificate, No. 138,210, class 7, 32).
  • Another object of the invention is to provide a method of manufacturing two concentric parts, according to which the displacement of newly manufactured parts and other part workpieces would take place as a result of their free fall.
  • FIG. I shows a gear diagram offceding a steel strip to blanking zone, according to the invention
  • FIG. 2 shows the position of the dies after blanking a stator sheet and a rotor sheet workpiece on the upper die, shown in cross section;
  • FIG. 3 shows the position of the upper and lower dies at the moment of holding the rotor sheet workpiece, shown in cross section, above the lower die and removing the strip leftover from the matrix of the upper die;
  • FIG. 4 shows the displacement of a strip, by a blanking pitch, towards the blanking zone in a direction shown with arrow C, at the moment of opening the upper die;
  • FIG. 5 shows the position of the dies at the moment of the removal of a stator sheet shown in cross section from the punch of the upper die and of the fall of said sheet onto a removing chute;
  • FIG. 6 shows the mutual position of the dies at the moment of the fall of a rotor sheet workpiece shown in cross section into the opening lower die
  • FIG. 7 shows the position of the dies at the moment of mounting a rotor sheet workpiece, shown in cross section, onto the lower die matrix and of removing a ready sheet, shown in cross section, from its punch.
  • the method of manufacturing stator or rotor sheets through die blanking from a strip I is effected in presses having compound dies arranged one above the other, with the blanking surfaces arranged vertically.
  • the upper die comprises a matrix 4 and a punch 5.
  • the punches 3 and 5 move reciprocally in opposite directions, the direction of their movement shown in the Figures with arrows A and B, respectively.
  • a strip 1 is fed, by a blanking pitch, to the open upper die in the direction shown with arrow C (FIG. 1).
  • the die gets opened, and as soon as the punch 3 withdraws from the matrix 2 in the direction shown with arrow A, a workpiece 7 is removed in the direction shown with arrow D.
  • the workpiece 7 falls under its own weight into a device 8 provided above the lower die and is held there until the lower die gets opened.
  • stator sheet blanked in the upper die is kept on the punch 3 of this die until the latter opens completely. This spell of time is sufficient for removing the leftover of the strip 1 from the matrix 2 by moving a stripper 9 in a direction shown with arrow E, and the strip 1 (FIG. 4) is moved into this die by a blanking pitch in a direction shown with arrow C.
  • stator sheet which falls under its own weight in a direction shown with arrow F onto a chute I0 and is then removed outside the press limits.
  • a rotor sheet 12 (FIG. 6) is blanked out of a rotor sheet workpiece 11 prepared in the previous cycle.
  • a blanked rotor sheet 12 is removed from the punch 5, which falls under its own weight in a direction indicated by arrow K (FIG. 7) downwards onto a chute 13 through which it is removed outside the press.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Punching Or Piercing (AREA)
  • Press Drives And Press Lines (AREA)
US854193A 1969-03-06 1969-08-29 Method of manufacturing two concentric parts through die blanking of steel stripe Expired - Lifetime US3604297A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1304654A SU321312A1 (enrdf_load_html_response) 1969-03-06

Publications (1)

Publication Number Publication Date
US3604297A true US3604297A (en) 1971-09-14

Family

ID=20444624

Family Applications (1)

Application Number Title Priority Date Filing Date
US854193A Expired - Lifetime US3604297A (en) 1969-03-06 1969-08-29 Method of manufacturing two concentric parts through die blanking of steel stripe

Country Status (4)

Country Link
US (1) US3604297A (enrdf_load_html_response)
BE (1) BE739433A (enrdf_load_html_response)
DE (1) DE1944296C3 (enrdf_load_html_response)
FR (1) FR2037159A1 (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5974937A (en) * 1998-04-03 1999-11-02 Day & Zimmermann, Inc. Method and system for removing and explosive charge from a shaped charge munition
US20040182209A1 (en) * 2003-03-18 2004-09-23 Franco James S. Cold-headed standoff

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599008A (en) * 1978-05-17 1981-09-30 Bendix Westinghouse Ltd Push plates

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542864A (en) * 1946-04-19 1951-02-20 Nat Machinery Co Machine for making nuts
US3179262A (en) * 1963-05-21 1965-04-20 Gen Electric Material transferring apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542864A (en) * 1946-04-19 1951-02-20 Nat Machinery Co Machine for making nuts
US3179262A (en) * 1963-05-21 1965-04-20 Gen Electric Material transferring apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5974937A (en) * 1998-04-03 1999-11-02 Day & Zimmermann, Inc. Method and system for removing and explosive charge from a shaped charge munition
US20040182209A1 (en) * 2003-03-18 2004-09-23 Franco James S. Cold-headed standoff
US20070000114A1 (en) * 2003-03-18 2007-01-04 Pem Management, Inc. Cold-headed standoff
US7421875B2 (en) 2003-03-18 2008-09-09 Pem Management, Inc. Cold-headed standoff
US20080302162A1 (en) * 2003-03-18 2008-12-11 Pem Management, Inc. Cold-headed standoff
US7631532B2 (en) 2003-03-18 2009-12-15 Pem Management, Inc. Cold-headed standoff
US20060196330A1 (en) * 2003-11-26 2006-09-07 Pem Management, Inc. Method of forming a cold-headed standoff
US7175533B2 (en) 2003-11-26 2007-02-13 Pem Management, Inc. Method of forming a cold-headed standoff

Also Published As

Publication number Publication date
DE1944296A1 (de) 1970-09-24
DE1944296B2 (enrdf_load_html_response) 1973-10-11
BE739433A (enrdf_load_html_response) 1970-03-26
DE1944296C3 (de) 1974-05-09
FR2037159A1 (enrdf_load_html_response) 1970-12-31

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