EP1004394B9 - Werkzeughalter für eine Werkzeugmaschine - Google Patents

Werkzeughalter für eine Werkzeugmaschine Download PDF

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Publication number
EP1004394B9
EP1004394B9 EP99119230A EP99119230A EP1004394B9 EP 1004394 B9 EP1004394 B9 EP 1004394B9 EP 99119230 A EP99119230 A EP 99119230A EP 99119230 A EP99119230 A EP 99119230A EP 1004394 B9 EP1004394 B9 EP 1004394B9
Authority
EP
European Patent Office
Prior art keywords
tool holder
tool
previous
holder according
press
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
EP99119230A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1004394A2 (de
EP1004394A3 (de
EP1004394B1 (de
Inventor
Kurt Gaul
Wolfgang Ausländer
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.)
Gebr Hilgeland & Co GmbH
Original Assignee
Gebr Hilgeland & Co GmbH
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 Gebr Hilgeland & Co GmbH filed Critical Gebr Hilgeland & Co GmbH
Publication of EP1004394A2 publication Critical patent/EP1004394A2/de
Publication of EP1004394A3 publication Critical patent/EP1004394A3/de
Application granted granted Critical
Publication of EP1004394B1 publication Critical patent/EP1004394B1/de
Publication of EP1004394B9 publication Critical patent/EP1004394B9/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/028—Loading or unloading of dies, platens or press rams
    • 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8745—Tool and anvil relatively positionable

Definitions

  • the invention relates to a tool holder for a press, with a plurality of pressing tools, wherein the tool holder is moved in the operation on a parts holder in which there is at least one part to be machined and each fixed and immovably arranged in the tool holder pressing tool by a movement of the Tool holder is movable in a working position.
  • Such a tool holder is z, B. from the US 1,297,429 known, which shows a three-bladed press with three different press stamps.
  • productivity in a production chain is always determined by the weakest link.
  • this is essentially the inner attack punch of the press, which, depending on the product and the material to be processed, has a level of about 30,000-250,000 parts.
  • the machine tools are usually equipped with a magazine in which several identical tools, in this case, for example, the inner attack pistons, in stock eino.
  • the pressing tool inserted in the tool holder is then automatically released from its locking, ejected, and replaced by a new pressing tool, which is removed from the storage magazine.
  • the object of the invention is to provide an alternative tool holder to the known tool magazines, in which several tools are available to prevent production loss with damaged tool.
  • This object is achieved in that in the tool holder a plurality of identical pressing tools are arranged and in the movement only the tool located in the working position performs the step until the stall quantity is exceeded, after which by moving the tool holder a new pressing tool in the Work position is mobile.
  • the tool holder is constructed so that it is in its entirety, ie with all on it arranged tools on a parts holder, the so-called die, is moved. In this movement, however, only one of the tools arranged on the tool holder performs the actual work step, for example, the pressing of a part, since only this is in the working position.
  • the tool holder For a movement of the tool holder to drive a new tool in the working position, it is advantageous if the tool holder is slidably mounted in a rail. At the same time, the use of a rail on the tool holder opens up the possibility of removing the entire tool holder from its rail and of equipping it with a new set of tools, provided that all the tools have reached their respective levels and are worn out.
  • the tool holder After replacing the individual tools, the tool holder can be re-inserted into the rail and set up in its initial position, which corresponds to the working position, for example, of the first tool arranged on the tool holder.
  • a stop For this purpose, on the tool holder, e.g. a stop be provided.
  • the gear is advantageously rotated by actuation of a pneumatic cylinder via a lever.
  • the rotation angle of the Gear and thus the movement of the tool holder is given in this construction by the maximum set deflection of the push rod of the pneumatic cylinder.
  • the distances between the tools arranged in the tool holder are the same.
  • the deflection of the rack for example by means of a stop, taking into account the transmission ratio between the gear, rack and operating lever to the given distance between the tools is customizable.
  • the pneumatic cylinder and the gear on the machine tool are arranged stationary. Only the tool holder on which the individual tools are fixed, and attached to the tool holder rack perform the working movement.
  • rack and gear are designed so that the teeth of the rack slides in the toothing of the gear.
  • the gear is cylindrical, wherein the roller has a width which is greater than the width of at least the amount of the stroke of the machine rack.
  • the tool holder Since the alignment between the tool and the part to be molded is extremely important, the tool holder is after a movement and Reaching the working position of a new tool with fine positioning and locking.
  • the moving in the operation part of the entire machine has for fine positioning and locking of the tool holder on a pin which can be inserted into a corresponding provided on the tool holder positioning and locking hole.
  • one of the holes is assigned to each tool arranged on the tool holder.
  • pin and bore have matching cone shapes. Furthermore, the distances between the holes correspond to the distances between the tools.
  • the pin is pressed by spring loading in the cone of the bore.
  • the spring load ensures that the tool holder is locked during the pressing operations.
  • the pen is e.g. Pulled out of the bore by means of a pneumatic cylinder via a lever mechanism against the biasing spring force.
  • the pneumatic cylinder associated with the gear is actuated to achieve a displacement of the tool holder, whereby a new tool is moved to the working position.
  • the control of the pneumatic cylinder, which is associated with the lever repealed, so that it automatically presses the pen under the spring load in the cone of the pin now facing hole and thus automatically finely adjusts the tool holder and locked in its then reached position.
  • the tool holder is slidably mounted in a rail
  • the tool holder is rotatably mounted with the several tools arranged on it about an axis. To position a new tool in the working position then in this construction, the locking pin is removed from the bore, a new tool is rotated to the working position, and then the pin pressed again into the hole.
  • the tool holder for positioning a new tool in the working position is always rotatable by a constant angle.
  • the rotation itself can hereby, as mentioned above, be realized with a construction of gear and pneumatic cylinder or with another device.
  • the embodiment of the tool holder 1 according to the invention shown in the two figures refers to a tool holder, as it can be used in a machine tool 10 for the production of screws.
  • FIG. 1 right next to the press dies 2 another conventional tool holder 1 ' , in which a single pressing tool 2' is arranged.
  • An arrangement of two different tool holders is often used when several, in this case, two steps are to be performed in the production of one pressing part.
  • the pre-form of a screw is usually produced by means of the so-called pre-burster 1 'in which the pre-burster tool 2' is inserted.
  • the screw blank is located in a in the FIG. 1 not illustrated die 3, which is located in front of the pre-sampler and in front of the tool holder 1.
  • This die 3 is usually a rotating die, so that within this die several parts in different stages of production eintru.
  • the preform of a screw in the die is first prepared by means of the pre-upsert, subsequently, the die is further rotated a step step to the next step by means of PressWerkzeuges 2, which rests in the tool holder assembly 1 according to the invention, the final shape of the Produce screw blank. After further rotation of the die, the finished shaped screw blank can then be ejected from the die.
  • a sensor is coupled to the tool holder, e.g. from monitored pressing pressures the proper functioning of the tools 2, i. the press stamp is monitored. Should there be deviations, the damaged tool 2 is moved out of its working position by means of the tool holder 1 according to the invention, and a subsequent tool is simultaneously moved into the working position. With the new tool, production can then be resumed,
  • the tool holder 1 is slidably mounted in a rail. This rail is not shown in the figures.
  • a toothed rack 5 is arranged laterally on the tool holder 1, in the teeth of which the teeth of a toothed wheel or toothed roller 6 engage.
  • the gear 6 is thereby rotated by actuation of the pneumatic cylinder 7 via a lever 8.
  • the rod 17 of the pneumatic cylinder is tightened until the stop 18 comes to the housing of the pneumatic cylinder 7 to the plant. In this case, by the stop 18, the maximum distance that the rod 17 can perform determined.
  • the movement of the rod 17 is then transmitted by means of the lever 8 to the gear 6, which due to the limited movement of the rod 17, also performs a limited rotation.
  • the axis 9 of the gear 6 is mounted free-wheel. As a result, the gear remains in its position. Since the driving of the pneumatic cylinder due to the stop 18, the gear 6 is always rotated by a constant amount, it is necessary that the distances D between the tool holder 1 arranged in the tools 2 are equal to each other.
  • this tool holder has bores 12 in an upper region into which a positioning and locking pin 11 is inserted in order to secure the tool holder in its position.
  • both the pin 11 and the bores 12 conical shapes 13 which are adapted to each other to pull the axis of the bore and the pin during insertion of the pin into the bore to each other.
  • Each tool is therefore assigned a hole.
  • the spring force can be deflected by a lever 16 on the pin 11, so that the force of the spring and the direction of movement of the pin can be arranged perpendicular to each other.
  • the tool holder 1 is decoupled from the other drive parts which cause the displacement of the tool holder 1. That is, the cylinder 7 and the gear 6 are fixedly arranged on the machine tool 10. Only the tool holder 1 performs with the pressing tools 2 arranged on this, the working movement A for pressing a part 4, which is located in the die 3 from.
  • the gear 6 is in the form of a long toothed roller, which in the FIG. 1 can not be seen.
  • the toothing of the toothed rack 5 in the toothing of the toothed roller 6 can slide along during the entire stroke of the tool holder 1 during the pressing movement.
  • the tool holder 1 instead of the described linear movement B also perform a circular motion.
  • the tool holder is rotatably mounted about an axis. At a certain radius around this axis of rotation, then a plurality of equally spaced tools may be fixed and immovable, which are rotatable successively in the event of wear in the working position.
  • this arrangement also has the means described from an inset in a conical bore pin. It is of course conceivable to provide other locking and positioning options.
  • the rotation of the tool holder about its axis can also be different Ways are performed.
  • the described possibility of a Freilauflagerung the axis of the driving element can also be provided in a rotating tool holder.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Jigs For Machine Tools (AREA)
  • Automatic Assembly (AREA)
  • Punching Or Piercing (AREA)
  • Gripping On Spindles (AREA)
EP99119230A 1998-11-24 1999-09-28 Werkzeughalter für eine Werkzeugmaschine Expired - Lifetime EP1004394B9 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19854150A DE19854150A1 (de) 1998-11-24 1998-11-24 Werkzeughalter
DE19854150 1998-11-24

Publications (4)

Publication Number Publication Date
EP1004394A2 EP1004394A2 (de) 2000-05-31
EP1004394A3 EP1004394A3 (de) 2002-03-20
EP1004394B1 EP1004394B1 (de) 2008-12-03
EP1004394B9 true EP1004394B9 (de) 2009-04-22

Family

ID=7888827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99119230A Expired - Lifetime EP1004394B9 (de) 1998-11-24 1999-09-28 Werkzeughalter für eine Werkzeugmaschine

Country Status (5)

Country Link
US (1) US6298708B1 (ja)
EP (1) EP1004394B9 (ja)
JP (1) JP4764965B2 (ja)
AT (1) ATE416063T1 (ja)
DE (2) DE19854150A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116423136B (zh) * 2023-06-13 2023-08-29 成都市鸿侠科技有限责任公司 一种前段四内蒙皮切割焊接工装
CN116587044B (zh) * 2023-07-18 2023-10-20 宁波佳尔灵气动机械有限公司 一种气动多位置限位机构

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1036047A (en) * 1911-02-13 1912-08-20 Waterbury Farrel Foundry Co Mechanical movement.
US1297429A (en) * 1918-05-28 1919-03-18 Waterbury Farrel Foundry Co Heading-machine.
US1905084A (en) * 1930-11-28 1933-04-25 United Screw And Bolt Corp Manufacture of bolts
US1955061A (en) * 1933-03-17 1934-04-17 Nat Machinery Co Double stroke cold header
US2104297A (en) * 1936-11-04 1938-01-04 Nat Machinery Co Double stroke cold header
US2124022A (en) * 1937-05-10 1938-07-19 Arthur J Alberts Heading method
US2204043A (en) * 1939-01-24 1940-06-11 Greenwood & Batley Ltd Cold forging machine
US3359580A (en) * 1965-07-19 1967-12-26 Csavaraugyar Method for producing shaped-head screws and tool for carrying out the method
DE2423574C3 (de) * 1974-05-15 1978-05-03 Dr. Eugen Duerrwaechter Doduco, 7530 Pforzheim Doppeldruckpresse zum Herstellen von Kleinteilen aus Metall
DE2436862C2 (de) * 1974-07-31 1986-11-13 Thyssen Industrie Ag, 4300 Essen Werkzeugwechselvorrichtung für Schmiedepressen
IT1134823B (it) * 1980-12-19 1986-08-20 Eufemia Garlaschi Pressa a due matrici e quattro punzoni per la produzione di viti,bulloni,rivetti e simili organi sagomati
JPS6099035A (ja) * 1983-11-04 1985-06-01 東レ株式会社 スラブ糸の製造方法
GB2161733A (en) * 1984-07-09 1986-01-22 Seagar Control Systems Limited Punch press
DE3818001C3 (de) * 1988-05-27 1998-02-12 Trumpf Gmbh & Co Stanzmaschine mit ein- und auswechselbarem Stanzwerkzeug und mit einem Werkstückvorschub
DE3900668C2 (de) * 1989-01-09 2001-01-11 Mannesmann Ag Presse zum seitlichen Stauchen von Werkstücken, insbesondere Brammenstauchpresse

Also Published As

Publication number Publication date
DE19854150A1 (de) 2000-05-25
DE59914919D1 (de) 2009-01-15
EP1004394A2 (de) 2000-05-31
EP1004394A3 (de) 2002-03-20
JP2000158272A (ja) 2000-06-13
US6298708B1 (en) 2001-10-09
EP1004394B1 (de) 2008-12-03
JP4764965B2 (ja) 2011-09-07
ATE416063T1 (de) 2008-12-15

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