EP3685963A1 - Dispositif de serrage, en particulier étau - Google Patents

Dispositif de serrage, en particulier étau Download PDF

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Publication number
EP3685963A1
EP3685963A1 EP19153891.7A EP19153891A EP3685963A1 EP 3685963 A1 EP3685963 A1 EP 3685963A1 EP 19153891 A EP19153891 A EP 19153891A EP 3685963 A1 EP3685963 A1 EP 3685963A1
Authority
EP
European Patent Office
Prior art keywords
drive spindle
housing
hand
clamping device
thread
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.)
Granted
Application number
EP19153891.7A
Other languages
German (de)
English (en)
Other versions
EP3685963B1 (fr
Inventor
Walter Bronzino
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.)
Oml Srl
Original Assignee
Oml Srl
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 to EP19153891.7A priority Critical patent/EP3685963B1/fr
Priority to ES19153891T priority patent/ES2923395T3/es
Application filed by Oml Srl filed Critical Oml Srl
Priority to SI201930281T priority patent/SI3685963T1/sl
Priority to PT191538917T priority patent/PT3685963T/pt
Priority to HUE19153891A priority patent/HUE059206T2/hu
Priority to DK19153891.7T priority patent/DK3685963T3/da
Priority to PL19153891.7T priority patent/PL3685963T3/pl
Priority to JP2019221260A priority patent/JP7186158B2/ja
Priority to CA3064246A priority patent/CA3064246A1/en
Priority to CN202010074100.4A priority patent/CN111496705B/zh
Priority to US16/751,874 priority patent/US11305402B2/en
Publication of EP3685963A1 publication Critical patent/EP3685963A1/fr
Application granted granted Critical
Publication of EP3685963B1 publication Critical patent/EP3685963B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • 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
    • B25B1/02—Vices with sliding jaws
    • 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
    • B25B1/103—Arrangements for positively actuating jaws using screws with one screw perpendicular to the jaw faces, e.g. a differential or telescopic screw
    • 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
    • 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
    • B25B1/2478—Construction of the jaws with more than one pair of jaws
    • 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
    • B25B1/2489—Slideways
    • 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
    • B25B5/00—Clamps
    • B25B5/02—Clamps with sliding jaws
    • 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
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/102—Arrangements for positively actuating jaws using screws with at least one jaw sliding along a bar
    • 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
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/166—Slideways; Guiding and/or blocking means for jaws thereon

Definitions

  • clamping devices have been well known for decades and are successfully used to support workpieces to be machined.
  • the clamping devices usually have one or two clamping jaws mounted in a housing, between which the workpiece to be machined can be clamped.
  • One of the two clamping jaws can also be provided in a stationary manner as part of a housing of the vice.
  • the jaws are operatively coupled to a drive spindle, and the rotation of the drive spindle is converted into a linear and synchronous feed movement of the jaws.
  • the jaws are often attached to a base jaw, for example by means of screws, so that the jaws can be mounted in different positions on the top of the base jaw, so that the specified distance is adjustable.
  • the drive spindle is rotatably mounted in the housing and runs coaxially to the longitudinal axis of the housing, that is to say with an equal lateral distance to the guide grooves for the base jaws incorporated in the inner wall of the housing.
  • the drive spindle cannot be moved or moved in the housing due to its bearing on it, but can also perform a rotational movement.
  • the pitches of the thread pairings are identical, but have an opposite direction, so that when the drive spindle is turned, a synchronous feed movement for the base jaws and clamping jaws is created.
  • the positions of the clamping jaws or the base jaws can be quickly adapted to the geometry of the workpieces to be clamped, without complex retooling measures.
  • the workpieces can have significantly different overall lengths, it is extremely small to extremely dimensioned when changing over Workpieces or vice versa required to replace the base jaws and / or the clamping jaws.
  • Such changeover times are time-consuming, however, and since the vices should have a high repetition accuracy with regard to workpieces of the same size, these retrofitting measures make it necessary to calibrate or measure the vise again.
  • the known clamping devices in particular vices, either have two base jaws or clamping jaws that move synchronously towards or away from one another, or one of the clamping or base jaws serves as a stop and the clamping jaw lying opposite moves toward the workpiece in order to clamp it. Consequently, only one workpiece can be reliably held between two clamping jaws in such vices. As soon as several workpieces are to be machined or locked at the same time, they must have an identical length. Workpieces of different sizes cannot be clamped in one of the known vices at the same time.
  • the clamping device according to the invention is intended to provide the user with the possibility that, on the one hand, two workpieces of different sizes are held in a position-oriented and self-centering manner by the clamping device and that on the other hand one of the base or clamping jaws acts as a stop for the workpiece to be clamped serves and exclusively the opposite base or clamping jaw is movable relative to the housing.
  • the fixing bracket to be attached to the housing fixes the retaining ring attached to the drive spindle so that the drive spindle is locked in relation to the longitudinal axis of the housing without the rotation of the drive spindle being hindered or restricted thereby.
  • the retaining ring is advantageously mounted exactly in the middle between the two right-hand and left-hand threads of the drive spindle, so that the synchronous infeed movements the base jaws or clamping jaws are self-centered on the workpiece to be clamped, because this is pushed by the respective clamping jaw that first hits the workpiece to the opposite clamping jaw until it hits the workpiece to be clamped. Consequently, workpieces of different sizes can be clamped on the clamping devices in a self-centering manner without having to carry out calibrations or other control dimensions.
  • the tensioning device according to the invention thus represents a so-called zero point tensioning system.
  • a clamping device 1 is shown in the form of a vice.
  • the clamping device 1 is intended to hold a workpiece 20 in a position-oriented and self-centering manner in space. This means that the axis of symmetry of the workpiece 20 is aligned coaxially with the central axis 3 formed by a housing 2 of the clamping device 1, specifically this clamping position should be created for all workpieces 20, regardless of their length dimensions.
  • the workpiece 20 fixed by the clamping device 1 should pass through during the clamping state a machine tool, not shown, can be processed.
  • the vice 1 is accordingly fixed in a position-oriented manner on a tool table and, in order to achieve repeat accuracy when replacing the workpieces 20, it is necessary that the position of the vice 1 relative to the machine tool is maintained and that the workpieces 20 supported on the vice 1 have an identical spatial position during the tensioning state if they have an identical length.
  • the retaining ring 24 has an axis of symmetry 28 which, in the assembled state of the retaining ring 24 on the drive spindle 9, is aligned with the central axis 3. Due to the position of the retaining ring 24, the self-centering of the clamping device 1 is achieved, because the retaining ring 24 is positioned exactly in the middle between the two right-hand and left-hand threads 10 of the drive spindle spindle 9.
  • each of the cover sleeves 21 has a right-hand and left-hand internal thread 22 which is wholly or partly in engagement with the respective right-hand or left-hand thread 10 machined on the drive spindle 9. It is technically imperative that the right-hand thread 10 of the drive spindle 9 is assigned to a right-hand internal thread 22 of the cover sleeve 21 and the left-hand thread 10 of the drive spindle 9 is assigned to a left-hand internal thread 22 of the cover sleeve 21.
  • each of the cover sleeves 21 has a right-hand and left-hand external thread 23 which is in engagement with a thread 12 machined on the base jaws 11.
  • a fixing bracket 14 can be installed on the housing 2 using the fastening screws 19.
  • the fixing bracket 14 is U-shaped in its cross section. Thus, this consists of two parallel legs 31 and 32 and a web 33 arranged between them.
  • the web 33 faces the open side of the housing 2 and the legs 31, 32 protrude into the interior of the housing 2, that is to say they run in the area of the two guide tracks 8 arranged parallel to one another.
  • the two legs 31, 32 and the web 33 engage around the retaining ring 24, namely the legs 31, 32 and the web 33 engage in the groove 34 of the retaining ring 24. Accordingly, the position of the drive spindle 9 is fixed relative to the housing 2 via the retaining ring 24. The drive spindle 9 can thus only rotate in the housing 2, but does not change its relative position to the housing 2 due to the locking of the fixing bracket 14 with the retaining ring 24.
  • the base jaw 11 is first by an opposite rotation of the drive spindle 9 and thus to move the cover sleeve 21.
  • the drive spindle 9 is rotated in the opposite direction by the crank 18, the respective cover sleeve 21 is first moved away from the retaining ring 24.
  • the cover sleeve 21 rotates at the identical rotational speed of the drive spindle 9, as a result of which a rotary movement occurs in the thread 12 of the respective base jaw 11. Accordingly, the base jaw 11 move back into its starting position and the two opposing clamping jaws 13 are the farthest apart from one another. The resetting of the base jaw 11 and the cover sleeves 21 therefore takes place in reverse to their feed movements.
  • the fixing bracket 14 is replaced by a stop 15 attached to the housing 2.
  • the stop 15 has a U-shaped contour in cross section.
  • the two parallel legs of the stop 15 are identified by the reference numerals 36 and 37 and the web arranged therebetween by the reference number 38.
  • the legs 36, 37 and 38 of the stop 15 are at a distance from the retaining ring 14.
  • FIG. 10 A further advantageous application of the tensioning device 1 according to the invention is shown in Figure 10 shown.
  • the base jaw 11 facing away from the crank 18 is fixed to the housing 2 by means of the fastening screws 19. Consequently, this base jaw 11 cannot move relatively in the direction of the longitudinal axis 4 of the housing 2, and the clamping jaws 13 fastened to it serve exclusively as a stop.
  • the opposite base jaw 11 can be designed up to the fixed base jaw 11 or clamping jaw 13, since the relative position of the drive spindle can be displaced with respect to the housing 2.
  • the free end of the drive spindle 9 opposite the crank 18 can namely emerge from the housing 2 or be turned on the latter.
  • the tensioning device 1 By means of the tensioning device 1 according to the invention, three completely different clamping situations can thus be provided without the respective users of the tensioning device 1 having to undertake time-consuming and complicated changeover costs.
  • the thread pairings 10 and 22 on the one hand and 23 and 12 on the other hand are permanently closed, so that impurities in the form of chips, hydraulic fluids or the like cannot penetrate into these threads.
  • the vice 1 can consequently be used for different clamping situations without time-consuming and complicated conversion measures.
  • the drive spindle 9 can namely, on the one hand, be fixed by the fixing bracket 14 and, on the other hand, can be freely moved along the central axis 3 along the longitudinal axis 4 of the housing 2.
  • the two are opposite End faces of the housing designed open. This means that both the guideways 8 and the drive spindle 9 and the cover sleeves 21 can emerge from the planes formed by the end faces of the housing 2. Accordingly, the freedom of movement of the drive spindle 9, the base jaws 11 and the cover sleeves 21 is completely released by the housing 2.
  • a plurality of spacer rings 16 are installed, through which, on the one hand, the drive spindle 9 can be buffered in the direction of the longitudinal axis 4 and, on the other hand, can be fixed in this direction as soon as one of the spacer rings 16 is both on the Drive spindle 9 as well as on the base jaw 11 or the housing 2 for releasable contact or engagement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
EP19153891.7A 2019-01-28 2019-01-28 Dispositif de serrage, en particulier étau Active EP3685963B1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
PL19153891.7T PL3685963T3 (pl) 2019-01-28 2019-01-28 Urządzenie zaciskowe, zwłaszcza imadło
SI201930281T SI3685963T1 (sl) 2019-01-28 2019-01-28 Vpenjalna naprava, zlasti primež
ES19153891T ES2923395T3 (es) 2019-01-28 2019-01-28 Dispositivo de sujeción, en particular un tornillo de banco
HUE19153891A HUE059206T2 (hu) 2019-01-28 2019-01-28 Szorítóeszköz, nevezetesen egy csavarkulcs
DK19153891.7T DK3685963T3 (da) 2019-01-28 2019-01-28 Klemmeanordning, specielt et skruestik
PT191538917T PT3685963T (pt) 2019-01-28 2019-01-28 Dispositivo de fixação, em particular um torno
EP19153891.7A EP3685963B1 (fr) 2019-01-28 2019-01-28 Dispositif de serrage, en particulier étau
JP2019221260A JP7186158B2 (ja) 2019-01-28 2019-12-06 クランプ装置、特に万力
CA3064246A CA3064246A1 (en) 2019-01-28 2019-12-09 Clamping device, in particular vice
CN202010074100.4A CN111496705B (zh) 2019-01-28 2020-01-22 夹紧装置、尤其是台钳
US16/751,874 US11305402B2 (en) 2019-01-28 2020-01-24 Clamping device, in particular a vice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19153891.7A EP3685963B1 (fr) 2019-01-28 2019-01-28 Dispositif de serrage, en particulier étau

Publications (2)

Publication Number Publication Date
EP3685963A1 true EP3685963A1 (fr) 2020-07-29
EP3685963B1 EP3685963B1 (fr) 2022-05-04

Family

ID=65279401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19153891.7A Active EP3685963B1 (fr) 2019-01-28 2019-01-28 Dispositif de serrage, en particulier étau

Country Status (11)

Country Link
US (1) US11305402B2 (fr)
EP (1) EP3685963B1 (fr)
JP (1) JP7186158B2 (fr)
CN (1) CN111496705B (fr)
CA (1) CA3064246A1 (fr)
DK (1) DK3685963T3 (fr)
ES (1) ES2923395T3 (fr)
HU (1) HUE059206T2 (fr)
PL (1) PL3685963T3 (fr)
PT (1) PT3685963T (fr)
SI (1) SI3685963T1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11667012B1 (en) * 2019-03-21 2023-06-06 Kurt Manufacturing Company, Inc. Self-centering dual direction clamping vise with adjustable center support
DE102020101062B4 (de) * 2020-01-17 2021-08-12 Lang Technik Gmbh Werkstückspannvorrichtung mit Kopplungskörper zwischen Klemmkörper und Gewindespindel
CN114571009B (zh) * 2021-12-16 2024-03-29 杭州希纳博智能机电科技有限公司 一种可夹持不同规格管件的智能安全套丝机
TWI807901B (zh) * 2022-07-04 2023-07-01 固地威企業股份有限公司 一個虎鉗本體能替換三種夾持模式的多功能虎鉗

Citations (5)

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DE575658C (de) * 1930-12-18 1933-05-02 Hermann Manthey Schnellspann- und Schnellhubvorrichtung fuer Maschinenschraubstoecke, Bremsen, Steuervorrichtungen u. dgl.
EP0742081A2 (fr) * 1995-05-12 1996-11-13 GERARDI S.p.A. Etan universel de précision pour une machine-outil
DE102007027808B3 (de) * 2007-06-13 2008-08-14 Gressel Ag Spannvorrichtung
DE102009024005A1 (de) * 2009-06-05 2010-12-16 Weid Wirtschafts- & Technologieberatung Spannvorrichtung
US20110316212A1 (en) * 2010-06-29 2011-12-29 Lee Valley Tools, Ltd. Woodworking Vises

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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE575658C (de) * 1930-12-18 1933-05-02 Hermann Manthey Schnellspann- und Schnellhubvorrichtung fuer Maschinenschraubstoecke, Bremsen, Steuervorrichtungen u. dgl.
EP0742081A2 (fr) * 1995-05-12 1996-11-13 GERARDI S.p.A. Etan universel de précision pour une machine-outil
DE102007027808B3 (de) * 2007-06-13 2008-08-14 Gressel Ag Spannvorrichtung
DE102009024005A1 (de) * 2009-06-05 2010-12-16 Weid Wirtschafts- & Technologieberatung Spannvorrichtung
US20110316212A1 (en) * 2010-06-29 2011-12-29 Lee Valley Tools, Ltd. Woodworking Vises

Also Published As

Publication number Publication date
CN111496705A (zh) 2020-08-07
HUE059206T2 (hu) 2022-10-28
US20200238478A1 (en) 2020-07-30
CA3064246A1 (en) 2020-07-28
CN111496705B (zh) 2023-03-14
SI3685963T1 (sl) 2022-09-30
DK3685963T3 (da) 2022-07-18
ES2923395T3 (es) 2022-09-27
JP2020116730A (ja) 2020-08-06
PL3685963T3 (pl) 2022-10-03
JP7186158B2 (ja) 2022-12-08
PT3685963T (pt) 2022-08-16
US11305402B2 (en) 2022-04-19
EP3685963B1 (fr) 2022-05-04

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