US2912249A - Tool clamps - Google Patents

Tool clamps Download PDF

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Publication number
US2912249A
US2912249A US590934A US59093456A US2912249A US 2912249 A US2912249 A US 2912249A US 590934 A US590934 A US 590934A US 59093456 A US59093456 A US 59093456A US 2912249 A US2912249 A US 2912249A
Authority
US
United States
Prior art keywords
tools
punch
tool
adaptor
working
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
US590934A
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English (en)
Inventor
Eckold Walter
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2912249A publication Critical patent/US2912249A/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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/04—Movable or exchangeable mountings for 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/08—Bending by altering the thickness of part of the cross-section of the work
    • B21D11/085—Bending by altering the thickness of part of the cross-section of the work by locally stretching or upsetting
    • 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
    • Y10S403/00—Joints and connections
    • Y10S403/01—Magnetic
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17888—Tang offset within socket
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/23—Chucks or sockets with magnetic or electrostatic means

Definitions

  • the invention relatesto a clamping appliance for ⁇ exl changeable tools, in particular for high-speed machines for cold-forming sheet and strip.
  • Such machines are employed in manufacturing processes in many different ways, so that a great number of special tools is required for use with them and which often have to be brought into operation one after another in rapid succession.
  • the machines which operate rapidly and have several diiferent working speeds, can only be utilized over their whole performance range in an economical manner, if the repeated exchanges of tools, which are required in order to perform the various stages in the forming of a component, can be carried out quickly and reliably.
  • the invention proposes now to provide the tools and their clamps or attachments with contact faces such that the tools or their attachments can be pulled away in a direction at right angles to the working stroke of the tools, at least one of the two faces in contact having magnetic properties.
  • the magnetic properties shall be given to the contact faces of the tool attachments and/ or of the tools or tool clamps by means of built-in permanent magnets, so that these parts, especially the tools, can only be pulled 01T by overcoming the attractive forces due to the magnetic flux.
  • Fig. l is a side view partly in section of an arrangement of tools according to the invention, as used in a machine for cold forming sheet and strip;
  • Fig. 5 shows the plan view of Fig. 4.
  • the tool attachment consists of a top plate 1 and a bolster plate 2.
  • the top plate 1 is provided with an undercut bead 3.
  • an adaptor 4 having a dovetailed projection 5, can be inserted into this bead from the side. This is made possible by having the dovetailed guide bead, which in Figs. 2 and 3 is shown for the under side of the adaptor, approximately U-shaped in plan, i.e. open on one side.
  • the adaptor 4 has on its under side an identically shaped dovetailed guide bead 3', which locates a dovetailed projection 5 of a punch 6.
  • the guide bead 3 2,912,249 Patented Nov. 10, 1959 ICC 2 is U-shaped in plan, and thus permits the punch 6 to be withdrawn to the side.
  • Their magnetic attraction permits the tools to be withdrawn sideways, if a certain force is applied, but keeps them securely in position as required for the safe operation of the machine.
  • dowel pins are provided at 9 which register into corresponding recesses in the mating parts. These dowel pins prevent at the same time the parts from rotating relative to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
US590934A 1955-06-13 1956-06-12 Tool clamps Expired - Lifetime US2912249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEE10853A DE1142333B (de) 1955-06-13 1955-06-13 Halterung fuer die Werkzeuge an im Schnelltakt arbeitenden Pressen zum Kaltverformen von Blechen und Profilen

Publications (1)

Publication Number Publication Date
US2912249A true US2912249A (en) 1959-11-10

Family

ID=7067962

Family Applications (1)

Application Number Title Priority Date Filing Date
US590934A Expired - Lifetime US2912249A (en) 1955-06-13 1956-06-12 Tool clamps

Country Status (6)

Country Link
US (1) US2912249A (enrdf_load_stackoverflow)
BE (1) BE548557A (enrdf_load_stackoverflow)
CH (1) CH341135A (enrdf_load_stackoverflow)
DE (1) DE1142333B (enrdf_load_stackoverflow)
FR (1) FR1151403A (enrdf_load_stackoverflow)
GB (1) GB786456A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171663A (en) * 1960-07-15 1965-03-02 James A Stark Machine tool chucking device
US3355209A (en) * 1965-05-10 1967-11-28 Magnetic Devices Inc Material handling device
US3358897A (en) * 1964-03-31 1967-12-19 Tempress Res Co Electric lead wire bonding tools
US4476762A (en) * 1982-01-18 1984-10-16 Anderson Iii Frank T Cutting die supporting plate apparatus
US4515535A (en) * 1983-08-15 1985-05-07 Baxter Travenol Laboratories, Inc. Peristaltic pump quick disconnect rotor assembly
US4609325A (en) * 1983-12-23 1986-09-02 Automobiles Peugeot Robot wrist
EP0268698A1 (de) * 1986-11-24 1988-06-01 Schön & Cie GmbH Haltevorrichtung für Stanzmesser an einer Stanzmaschine
US5167478A (en) * 1990-04-03 1992-12-01 Kennametal Inc. Tool holder with radial tool change mechanism
US6227853B1 (en) * 1999-02-11 2001-05-08 Edge Technologies, Inc. Magnetic coupling system and method
EP1479461A1 (en) * 2003-05-23 2004-11-24 Schiavi Macchine Industriali S.p.A. Support system for a punch in a bending press
US20080216448A1 (en) * 2007-03-08 2008-09-11 Poly-Clip System Gmbh & Co. Kg Closing tool assembly
WO2019090317A1 (en) * 2017-11-06 2019-05-09 Mate Precision Tooling, Inc. Magnetic press brake tooling engagement system
US10792716B2 (en) 2017-06-29 2020-10-06 Mate Precision Tooling, Inc. Magnetic press brake and machine tooling engagement systems
US11383284B2 (en) 2016-09-09 2022-07-12 Mate Precision Technologies Inc. Press brake tool engagement system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981002266A1 (en) * 1980-02-11 1981-08-20 J Drazy Arbor assembly
US4269553A (en) * 1980-02-11 1981-05-26 Caterpillar Tractor Co. Arbor assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1331030A (en) * 1917-10-19 1920-02-17 Ryan John Edward Device for holding tools or work
US2241091A (en) * 1939-06-08 1941-05-06 Hood Josa Allen Tube-end expander
US2287286A (en) * 1938-08-13 1942-06-23 Karl Otto Goettsch Magnetic chuck
US2422800A (en) * 1943-10-11 1947-06-24 Helliwells Ltd Apparatus for die-shaping sheet metal
US2550775A (en) * 1949-07-13 1951-05-01 Wade Stevenson Magnetic screw driver

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB542460A (enrdf_load_stackoverflow) * 1900-01-01
AT165101B (de) * 1945-08-22 1950-01-25 Franz Gribsch Vorrichtung zum Lösen und Anziehen von Schrauben

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1331030A (en) * 1917-10-19 1920-02-17 Ryan John Edward Device for holding tools or work
US2287286A (en) * 1938-08-13 1942-06-23 Karl Otto Goettsch Magnetic chuck
US2241091A (en) * 1939-06-08 1941-05-06 Hood Josa Allen Tube-end expander
US2422800A (en) * 1943-10-11 1947-06-24 Helliwells Ltd Apparatus for die-shaping sheet metal
US2550775A (en) * 1949-07-13 1951-05-01 Wade Stevenson Magnetic screw driver

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171663A (en) * 1960-07-15 1965-03-02 James A Stark Machine tool chucking device
US3358897A (en) * 1964-03-31 1967-12-19 Tempress Res Co Electric lead wire bonding tools
US3355209A (en) * 1965-05-10 1967-11-28 Magnetic Devices Inc Material handling device
US4476762A (en) * 1982-01-18 1984-10-16 Anderson Iii Frank T Cutting die supporting plate apparatus
US4515535A (en) * 1983-08-15 1985-05-07 Baxter Travenol Laboratories, Inc. Peristaltic pump quick disconnect rotor assembly
US4609325A (en) * 1983-12-23 1986-09-02 Automobiles Peugeot Robot wrist
EP0268698A1 (de) * 1986-11-24 1988-06-01 Schön & Cie GmbH Haltevorrichtung für Stanzmesser an einer Stanzmaschine
US5167478A (en) * 1990-04-03 1992-12-01 Kennametal Inc. Tool holder with radial tool change mechanism
US6227853B1 (en) * 1999-02-11 2001-05-08 Edge Technologies, Inc. Magnetic coupling system and method
EP1479461A1 (en) * 2003-05-23 2004-11-24 Schiavi Macchine Industriali S.p.A. Support system for a punch in a bending press
US20080216448A1 (en) * 2007-03-08 2008-09-11 Poly-Clip System Gmbh & Co. Kg Closing tool assembly
US7694490B2 (en) 2007-03-08 2010-04-13 Poly-Clip System Gmbh & Co. Kg Closing tool assembly
US11383284B2 (en) 2016-09-09 2022-07-12 Mate Precision Technologies Inc. Press brake tool engagement system
US10792716B2 (en) 2017-06-29 2020-10-06 Mate Precision Tooling, Inc. Magnetic press brake and machine tooling engagement systems
WO2019090317A1 (en) * 2017-11-06 2019-05-09 Mate Precision Tooling, Inc. Magnetic press brake tooling engagement system
US10953453B2 (en) 2017-11-06 2021-03-23 Mate Precision Technologies Inc. Magnetic press brake tooling engagement system

Also Published As

Publication number Publication date
DE1142333B (de) 1963-01-17
BE548557A (enrdf_load_stackoverflow)
CH341135A (de) 1959-09-30
FR1151403A (fr) 1958-01-30
GB786456A (en) 1957-11-20

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