EP0340602B1 - Antrieb für einen Maschinenschraubstock - Google Patents

Antrieb für einen Maschinenschraubstock Download PDF

Info

Publication number
EP0340602B1
EP0340602B1 EP89107420A EP89107420A EP0340602B1 EP 0340602 B1 EP0340602 B1 EP 0340602B1 EP 89107420 A EP89107420 A EP 89107420A EP 89107420 A EP89107420 A EP 89107420A EP 0340602 B1 EP0340602 B1 EP 0340602B1
Authority
EP
European Patent Office
Prior art keywords
drive
sleeve
chamber
power amplifier
drive according
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
EP89107420A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0340602A1 (de
Inventor
Harald Feistenauer
Ludwig Krause
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.)
Saurer Allma GmbH
Original Assignee
Saurer Allma 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 Saurer Allma GmbH filed Critical Saurer Allma GmbH
Publication of EP0340602A1 publication Critical patent/EP0340602A1/de
Application granted granted Critical
Publication of EP0340602B1 publication Critical patent/EP0340602B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B25B1/2473—Construction of the jaws with pull-down action on the workpiece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/106—Arrangements for positively actuating jaws using screws with mechanical or hydraulic power amplifiers

Definitions

  • a machine vice of the type specified is described.
  • a fixed jaw is arranged on a vice body at one end and a movable jaw at the other end.
  • the drive consists of a power amplifier that acts on a screw spindle.
  • the arrangement is such that the crank is located on one side of the abutment at one end of the vice body and acts on the power amplifier on the other side of the abutment.
  • the movable jaw is first pushed forward via the screw spindle and the workpiece is clamped with a predetermined force. If this force or the torque applied to the crank is exceeded, a clutch disengages.
  • a power amplifier as used in the machine vice mentioned above, has become known, for example, from DE-PS 23 08 175.
  • the object is achieved in a simple manner by the invention.
  • the vice body, the slide and the jaws remain completely unchanged.
  • the abutment can also be used.
  • DE-AS 12 88 523 describes a machine vice in which the screw spindle is arranged inside the movable jaw.
  • the abutment is also housed inside the movable jaw, and the entire drive is above the clamping level.
  • a power amplifier is provided outside the movable jaw, the power amplifier then acting on the movable jaw via the screw spindle.
  • the screw spindle is located essentially on one side of the support surface and the booster is on the other side of the support surface, that a sleeve is provided which carries the support surface on an annular flange and whose bore penetrates an extension of the screw spindle that the booster acts on the extension, and that the booster can be connected to the sleeve, so that the booster is supported on the abutment via the support surface. days.
  • One part with the screw spindle is to be inserted into the abutment from one side, and the other part of the drive is connected to the first part from the other side, that is to say from the rear of the abutment.
  • the screw spindle can interact with the sleeve in various ways. It is expedient if the screw spindle can be rotated with the sleeve, but is axially movable within the limits of the sleeve under the action of the power amplifier. In itself, a non-rotatable sleeve would also be useful. However, the construction proposed above is preferred. As is known per se, a suitable roller bearing, for example a needle bearing, can be used to reduce the friction between the sleeve and the abutment.
  • a rotatable chamber is provided for the power amplifier.
  • the screw spindle extension projects into this chamber on the abutment side, while the crankshaft projects into the chamber on the crank side.
  • an internal thread is provided in the chamber in which the crankshaft is supported.
  • a disengageable clutch is provided in the chamber, the clutch limiting the torque applied by the crank to be transmitted to the chamber, as is known per se. This ensures that when the movable jaw moves, the screw spindle is rotated first, and that the clutch then disengages at certain clamping forces and the crankshaft acts on the power amplifier.
  • the chamber preferably consists of two parts screwed together, one part receiving the thread for the crankshaft and the clutch, while the other part is screwed to the sleeve.
  • the jaw 9 is fixedly arranged on the vice body 8 at one end.
  • the abutment 6 is provided, which receives the drive 28 according to the invention.
  • Carriage 29, which carries movable jaw 4, is mounted in vice body 8.
  • the feed movement for the slide 29 takes place by means of the screw spindle 1. This engages with the screw thread 30 in the spindle nut 10, which extends over the entire length of the spindle.
  • Fig. 1 shows that position of the machine vice 5, in which the jaw 4 is fully retracted.
  • the feed movement is initiated into the drive via the crank 3, which can be plugged onto the polygon 31.
  • the sleeve 11 is supported on the abutment 6 with the support surface 40 of the ring flange 7.
  • a gradation 34 is provided for transmitting the pressures of the screw spindle 1 to the sleeve 11.
  • the parts 19 and 20 together form the chamber 15 which receives the power amplifier 2, the details of which are not shown in detail.
  • the crankshaft 16 is held in the internal thread 17 of the part 19 and acts on the power amplifier when it is screwed into the part 19 or the chamber 15.
  • the coupling 18 in the chamber 15 consists of a ball 35 which is under the action of a spring 38 and which partially protrudes into a recess 39 in the part 19.
  • the force of the spring 38 determines which torque can be transmitted between the crank 16 and the part 19. If the set torque is exceeded, the ball 35 moves inwards against the force of the spring 38 and the crank 16 can be screwed into the chamber 15.
  • a swivel angle limiter 21 is provided, which essentially consists of an annular groove 22 in part 19, in which a pin 24 engages.
  • the annular groove has an end stop 23 (see FIG. 4), so that the pin 24 has a maximum swivel path of approximately 300 degrees. Since the pin 24 is mounted in the collar 26 and the collar 26 on the Polygon 27 is displaceable against the force of the spring 25 with six surfaces, it is possible to retract the adjusting ring 26 to the left against the force of the spring in the illustration in FIG. 2, the polygon 27 disengaging and in different positions on the hexagon 27 to fix. A total of five different positions (positions 1 to 5 of FIG. 4) can be assumed. In position 1, only a pivoting movement of 60 degrees is possible, ie only a slight actuation of power amplifier 2. In the other positions, however, the power amplifier is more effective.
EP89107420A 1988-05-06 1989-04-25 Antrieb für einen Maschinenschraubstock Expired - Lifetime EP0340602B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8806051U 1988-05-06
DE8806051U DE8806051U1 (ja) 1988-05-06 1988-05-06

Publications (2)

Publication Number Publication Date
EP0340602A1 EP0340602A1 (de) 1989-11-08
EP0340602B1 true EP0340602B1 (de) 1992-07-01

Family

ID=6823803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89107420A Expired - Lifetime EP0340602B1 (de) 1988-05-06 1989-04-25 Antrieb für einen Maschinenschraubstock

Country Status (6)

Country Link
US (1) US4934676A (ja)
EP (1) EP0340602B1 (ja)
JP (1) JP2758202B2 (ja)
KR (1) KR890017043A (ja)
DE (2) DE8806051U1 (ja)
ES (1) ES2034468T3 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5273264A (en) * 1992-12-18 1993-12-28 Safeway Machinery Industry Corp. Pneumatic quick vise
US6164635A (en) * 1999-05-21 2000-12-26 Chase; Donald Milling machine bench vise
US20070138724A1 (en) * 2005-12-16 2007-06-21 Black & Decker Clamp Device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397880A (en) * 1966-05-10 1968-08-20 Kurt Mfg Company Vise clamp
DE2308175C3 (de) * 1973-02-19 1975-09-04 Saurer-Allma Gmbh, Allgaeuer Maschinenbau, 8960 Kempten Kniehebelkraftverstärker
IT1020738B (it) * 1973-09-17 1977-12-30 Saurer Allma Gmbh Dispositivo di immorsamento spe cialmente morsa a vite per macchine
IT1116739B (it) * 1976-06-14 1986-02-10 Arnold Franz Dispositivo di immorsamento,particolarmente morsa a vite per macchine
US4043547A (en) * 1976-12-10 1977-08-23 Chicago Tool And Engineering Company Precision machine vise
DE2710424A1 (de) * 1977-03-10 1978-09-14 Roehm Guenter H Spanneinrichtung, insbesondere maschinenschraubstock
DE2832427A1 (de) * 1978-07-24 1980-02-07 Franz Schoeffel Mechanischer druckerzeuger
DE7830221U1 (de) * 1978-10-11 1980-03-20 Arnold, Franz, 8960 Kempten Mechanischer kraftverstaerker
DE2909451C2 (de) * 1979-03-10 1982-06-16 Georg Kesel GmbH & Co KG, 8960 Kempten Spanneinrichtung, insbesondere für Maschinenschraubstöcke
IT1168021B (it) * 1980-10-22 1987-05-20 Saurer Allma Gmbh Dispositivo di bloccaggio, azionato pneumaticamente, in particolare morsa da macchina
DE3437403A1 (de) * 1984-10-12 1986-04-24 Saurer-Allma Gmbh, 8960 Kempten Hochdruckspanner
DE3438900C2 (de) * 1984-10-24 1986-08-21 Saurer-Allma Gmbh, 8960 Kempten Maschinenschraubstock
US4605208A (en) * 1985-04-04 1986-08-12 Durham Randy E Combination automatic and manual vise apparatus

Also Published As

Publication number Publication date
JP2758202B2 (ja) 1998-05-28
DE58901758D1 (de) 1992-08-06
DE8806051U1 (ja) 1988-06-30
ES2034468T3 (es) 1993-04-01
KR890017043A (ko) 1989-12-14
JPH0215980A (ja) 1990-01-19
US4934676A (en) 1990-06-19
EP0340602A1 (de) 1989-11-08

Similar Documents

Publication Publication Date Title
EP0480299B1 (de) Mehrfachspanner zum Festspannen von mindestens zwei Werkstücken
DE4237422C2 (de) Werkstückhaltevorrichtung für auf Werkzeugmaschinen mehrseitig zu bearbeitende Werkstücke
DE2257384C3 (de) Spannfutter für Drehmaschinen u.dgl. Werkzeugmaschinen
EP0463344B1 (de) Spannvorrichtung mit Kraftverstärker, insbesondere Maschinenschraubstock
DE4112418A1 (de) Maschinenschraubstock
DE3603618C1 (en) Clamping device for use on machine tools
DE3601225C1 (de) Wechselkopf fuer eine Werkzeugwechselvorrichtung
DE2060881A1 (de) Mechanische Spanneinrichtung,insbesondere Maschinenschraubstock
DE3003626A1 (de) Spannwerkzeug
DE3925717A1 (de) Vorrichtung an maschinenschraubstoecken zum zentrischen spannen von werkstuecken
EP0340602B1 (de) Antrieb für einen Maschinenschraubstock
DE3329942C1 (de) Spannvorrichtung für insbes. spanabhebend zu bearbeitende Werkstücke
DE3729093C1 (de) Spannvorrichtung mit mechanischem Kraftverstaerker
DE851579C (de) Vorrichtung zur Aufhebung des axialen Spiels von Getrieben
DE2631583B2 (de) Kraftbetätigtes Spannfutter
EP0013746B1 (de) Vorrichtung zum Einspannen von Werkstücken
DE898839C (de) Einrichtung und Verfahren zur willkuerlichen Beseitigung und Einschaltung des toten Ganges in Spindelantrieben
DE2648997A1 (de) Spannwerkzeug mit einzelverstellung und zusaetzlicher zentralspannung
DE1810722B2 (de) Spannfutter
DE4025745C2 (ja)
EP0499808B1 (de) Schraubstock, insbesondere Maschinenschraubstock zum zentrischen Spannen
DE2808272C2 (de) Spannfutter
DE2166393C3 (de) Revolverkopf einrichtung
DE202004010936U1 (de) Stoßvorrichtung zum Stoßen von Nuten o.dgl. auf Werkzeugmaschinen mit einem Werkzeugdrehantrieb, insbesondere auf CNC-Drehmaschinen
DE2632528A1 (de) Kraftbetaetigtes spannfutter fuer drehmaschinen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR IT

17P Request for examination filed

Effective date: 19891206

17Q First examination report despatched

Effective date: 19910314

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR IT

ITF It: translation for a ep patent filed

Owner name: BUGNION S.P.A.

ET Fr: translation filed
REF Corresponds to:

Ref document number: 58901758

Country of ref document: DE

Date of ref document: 19920806

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2034468

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000417

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20000426

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010426

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20010430

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010623

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021101

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030203

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050425