EP0107763B1 - Etau, en particulier pour machine-outil - Google Patents

Etau, en particulier pour machine-outil Download PDF

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Publication number
EP0107763B1
EP0107763B1 EP83108790A EP83108790A EP0107763B1 EP 0107763 B1 EP0107763 B1 EP 0107763B1 EP 83108790 A EP83108790 A EP 83108790A EP 83108790 A EP83108790 A EP 83108790A EP 0107763 B1 EP0107763 B1 EP 0107763B1
Authority
EP
European Patent Office
Prior art keywords
jaw
lever
support
vice
vice 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
Application number
EP83108790A
Other languages
German (de)
English (en)
Other versions
EP0107763A2 (fr
EP0107763A3 (en
Inventor
Johann Good
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
Priority to AT83108790T priority Critical patent/ATE38483T1/de
Publication of EP0107763A2 publication Critical patent/EP0107763A2/fr
Publication of EP0107763A3 publication Critical patent/EP0107763A3/de
Application granted granted Critical
Publication of EP0107763B1 publication Critical patent/EP0107763B1/fr
Expired legal-status Critical Current

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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
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the 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
    • B25B1/12—Arrangements for positively actuating jaws using screws with provision for disengagement
    • B25B1/125—Arrangements for positively actuating jaws using screws with provision for disengagement with one screw perpendicular to the jaw faces
    • 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
    • B25B1/18—Arrangements for positively actuating jaws motor driven, e.g. with fluid drive, with or without provision for manual actuation

Definitions

  • the invention relates to a vise with a support having a sliding surface, a first and a second jaw, which are movable relative to one another, in a drive element which acts via a lever on the first jaw in order to clamp or release a workpiece on the sliding surface of the To move supports and a joint that connects the lever to the first jaw in order to pretension it against the sliding surface of the support during a clamping movement.
  • a first jaw is usually movable on a sliding surface of a support by means of a spindle or another device against a second, existing jaw in order to grasp and hold the workpiece.
  • a spindle or another device against a second, existing jaw in order to grasp and hold the workpiece.
  • this jaw has a tendency to stand out slightly from the sliding surface when tightening.
  • this has the disadvantage that it affects the accuracy of the machining of the workpiece.
  • GB-A-574 859 shows a vice with a support, a first jaw movable with a spindle on a sliding surface of the support and a second fixed jaw.
  • An angle lever is articulated on the movable jaw by means of a bolt.
  • An almost horizontally arranged arm of this angle lever has at its end a guide pin, the ends of which protrude on both sides of the arm and each engage in a guide groove of the support.
  • the almost vertically arranged arm of the angle lever is acted upon by the tip of a spindle when clamping a workpiece.
  • the movable jaw is moved on the one hand in the direction of the fixed jaw and, on the other hand, a force is transmitted to the angle lever, which wants to rotate it about the guide pin mentioned at the end of the horizontal arm.
  • the lever is expediently a double-armed lever. This makes it possible to utilize the space in the support in order to achieve a suitable lever transmission and to use the elasticity of the lever for tensioning. If an angle lever is used, a particularly advantageous construction results which makes good use of the available space. It is thus possible to provide a curve between the drive element and the lever, that is to say the angle lever, in order to transmit the drive force from the drive element to the lever. This enables a further power transmission, so that a relatively low driving force is sufficient to generate a sufficient clamping force.
  • the curve and / or the drive element are expediently designed such that self-locking occurs. If the drive force is no longer present, the elastic deformation of the lever, for example the angle lever, ensures that the clamping force of the clamping jaw is maintained.
  • the curve is formed by two sliders arranged on one side of the lever and running on rollers in the support, which have a cam slot inclined at an acute angle to the direction of movement, into which rollers arranged on the lever engage.
  • This self-locking can be increased if sliders and sliding pins are used instead of rollers.
  • the drive element e.g. the pneumatic cylinder
  • the supply system e.g. of the compressed air source
  • two selectively operable locking members are provided to limit the path of the curve. Depending on whether the vice is used for internal or external clamping, one of the locking elements is actuated.
  • the lever can be coupled to the jaw via a pivot pin.
  • the coupling of the lever with the jaw via a ball joint is more advantageous. This enables the jaw to adapt to a non-parallel workpiece. You can then not only perform a back and forth movement, but also a rotary movement around an axis perpendicular to the sliding surface of the support. However, if it is desired that no such rotation take place or that the rotation be limited, means for limiting or preventing rotation of the jaw on the sliding surface or the support can be provided, e.g. Set screws.
  • the support is advantageously filled with oil, so that the drive element and its bearings as well as the slides run continuously in the oil bath. It is then expedient to provide at least one groove in the slide surface of the support and / or the support surface, in which a seal is located. This seal prevents oil from escaping between the sliding surface and the jaw.
  • a pneumatic cylinder advantageously serves as the drive element.
  • other drive elements e.g. an electromagnet or electric motor.
  • a pneumatic cylinder forms a particularly simple drive element.
  • the piston rod also has the advantage that it acts as an oil pump to press oil from the support into the jaw and to lubricate the sliding surface.
  • a control slide valve having at least two positions can be provided, which controls the action on the pneumatic cylinder in such a way that the jaws are moved apart in one slide position and moved against one another in the other position.
  • the control slide can also have a third position in which the pneumatic cylinder can be actuated by a four-way valve.
  • the jaws can be provided both on the front and on the top with peg holes arranged in a grid dimension with a cylindrical fitting diameter and a thread underneath, such that top jaws, which are fixed on the front and top, or special jaws related to the workpiece by means of fitting screws or hollow fitting bushes and through these Inserted clamping screws can be fastened.
  • This enables a particularly universal and efficient use of the vice.
  • the support it is also possible for the support to be provided on the underside with fitting bores arranged in a grid dimension, by means of which the vice can be pinned and screwed onto a base plate, a mounting bracket or the like.
  • the vise consists essentially of the support 1 on the sliding surface 3, the two vise jaws 5 and 6 are movable back and forth.
  • the movable jaw 5 is actuated by a drive mechanism 13, e.g. a pneumatic cylinder. It only covers a short distance, but this is sufficient to clamp the workpiece 15 or to release it again.
  • a drive mechanism 13 e.g. a pneumatic cylinder. It only covers a short distance, but this is sufficient to clamp the workpiece 15 or to release it again.
  • top jaws 19 and 21 are provided for clamping the workpiece 15 on the jaws 5 and 6 and fastened with screws 17.
  • top jaws 19 and 21 shown in FIG. 1 serve to grasp the workpiece 15 on the periphery, that is to say to clamp it from the outside
  • the top jaws 19 'and 21' from FIG. 2 serve to clamp a workpiece 15 'from the inside.
  • the support 1 consists essentially of the trough-shaped base body 23, the interior 24 of which is laterally closed by the support plate 25 and the top by the guide plate 27, or of a box-shaped base body 23, whose interior 24 is laterally closed by the support plate 25.
  • the stability of the base body is significantly increased.
  • the jaw 6 can be moved on the support 1 by means of a hand crank 9 via the spindle 7.
  • a double-acting ball socket package 29 with the pressure plate 31, which is screwed to the jaw 6, serves for the axial support of the spindle 7 on both sides.
  • the spindle is protected by the U-shaped mudguard 33.
  • lever 41 it is more expedient, as shown, to provide a two-armed lever, in particular an angle lever, which has the arms 45 and 46.
  • the long lever arm 46 is much longer than the arm 45 in the embodiment shown, so that a corresponding translation is achieved.
  • a curve is provided between the drive member, i.e. the pneumatic cylinder 13, and the angle lever 41.
  • This curve is in the form of two slides 47 arranged symmetrically to the lever arm 46, which are connected at one end by the coupling piece 49 to one another and to the piston rod 51 of the pneumatic cylinder 13.
  • the slides 47 have a U-shaped cross section and run on the rollers 53, which in turn are mounted on the axes 55.
  • Each slide 47 has a cam slot 57, which runs at an acute angle to the direction of movement, in which a roller 59 can run, which can rotate on a pin 61 arranged in the angle lever 41.
  • FIG. 4 shows, two locking members in the form of pins 63, 64 are provided, through which the path of the slide 47 can be limited.
  • the locking member 64 is in the locked position, so that only a movement of the jaw 5 for external clamping (Fig. 1) is possible by the drive member 13.
  • the locking member 63 is brought into the locking position and the locking member 64 is pulled out.
  • the interior 24 of the support is filled with oil.
  • two grooves 65 are provided in the sliding surface of the support or, as shown in FIG. 3, the bearing surface of the jaw 5, in which the seal 66 is located.
  • the ball joint 43 is also lubricated.
  • a cover 69 is screwed to the jaw 5 with screws 70 and thus covers the ball joint 43.
  • a ball joint 43 enables the jaw 5 not only to perform a back and forth movement on the sliding surface 3, but also a rotary movement about an axis perpendicular to the sliding surface of the support.
  • the jaw 5 can e.g. adapt to a non-parallel workpiece. If, however, it is desired that no such rotation takes place or the rotation is limited, the set screws 71 can be actuated (FIGS. 1 and 6).
  • a compressed air connection 73 is provided on the support plate 25 .
  • Another hole for a second compressed air connection is closed by a plug 75.
  • two compressed air channels (not shown in the drawing) lead to the control block 77 (FIG. 4), which has a control slide 81 which can be rotated by an adjusting lever 79.
  • compressed air is fed from the connection 73 via the channels 83, 85 into the cylinder 13, which then causes a closing movement to the outside tension.
  • the other side of the piston 14 is steamed up in order to bring the jaw 5 back into the original position.
  • the piston 14 is acted on in the reverse order.
  • the control slide 81 is designed such that when it is brought into a neutral intermediate position, it enables remote control via a four-way valve.
  • the sealing plug 75 (FIG. 1) is replaced by a second pneumatic connection.
  • both sides of the piston 14 are then optionally acted upon by compressed air via the pneumatic exclusions.
  • the vice has 1 centering holes 87 in the base of the support.
  • Four centering bores 87 are expediently distributed over the base area in a grid dimension. This enables the vice to be reproducibly and precisely plugged onto substructure elements if corresponding bores are also provided there. This means that the vice can be used in a modular system.
  • special slot nuts are used, which establish the connection between the centering bushes 87 and the T-slots.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Claims (17)

1. Etau, comportant un support (1) qui présente une surface de glissement (3), une première (5) et une seconde (6) mâchoire qui sont mobiles l'une par rapport à l'autre, un organe d'entraînement (13) qui agit, par l'intermédiaire d'un levier (41), sur la première mâchoire (5) pour déplacer celle-ci sur la surface de glissement (3) du support (1) en vue du serrage ou du desserrage d'une pièce à usiner (15,15'), et une articulation (43) qui relie de façon articulée le levier (41) à la première mâchoire (5) de manière à précontraindre celle-ci contre la surface de glissement (3) du support (1) lors d'un mouvement de serrage, caractérisé en ce qu'à l'état de repos, un bras (45) du levier (41) est situé dans une position neutre perpendiculaire à la surface de glissement (3), pour être déplacé vers la seconde mâchoire (6) en vue du serrage extérieur et à partir de la seconde mâchoire (6) en vue du serrage intérieur, la première mâchoire (5) étant précontrainte, dans un cas comme dans l'autre, contre la surface de glissement (3) du support (1).
2. Etau selon la revendication 1, caractérisé en ce que le bras de levier (45) fait partie d'un levier à deux bras, par exemple d'un levier coudé (41).
3. Etau selon la revendication 1 ou 2, caractérisé en ce qu'une came est prévue entre l'organe d'entraînement (13) et le levier (41), pour transmettre au levier (41) la force motrice de l'organe d'entraînement (13).
4. Etau selon la revendication 3, caractérisé en ce que la came et/ou l'organe d'entraînement (13) sont réalisés de telle manière qu'il se produise un blocage automatique.
5. Etau selon la revendication 3 ou 4, caractérisé en ce que la came se compose de deux curseurs (47) disposés de part et d'autre du levier (41) et roulant sur des galets (53) dans le support (1), curseurs qui présentent une rainure de came (57) qui est inclinée selon un angle aigu par rapport à la direction de mouvement et dans laquelle s'engagent des galets (59) montés sur le levier.
6. Etau selon l'une quelconque des revendications 3 à 5, caractérisé en ce qu'il est prévu deux organes d'arrêt (63, 64) qui sont manoeuvrables au choix pour limter la course de la came.
7. Etau selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'articulation qui relie le levier (41) à la premère mâchoire (5) est une articulation sphérique (43).
8. Etau selon la revendication 7, caractérisé en ce qu'il est prévu des moyens (71) pour limiter ou interdire une rotation de la première mâchoire (5) sur la surface de glissement (3) du support (1).
9. Etau selon l'une.quelconque des revendications 1 à 8, caractérisé en ce que le support présente une cavité (24) qui est remplie d'huile.
10. Etau selon la revendication 9, caractérisé en ce qu'il est prévu, dans la surface de glissement (3) du support (1) et/ou dans la surface d'appui de la première mâchoire (5), au moins une rainure (65) dans laquelle se trouve une garniture d'étanchéité (66).
11. Etau selon l'une quelconque des revendications 1 à 10, caractérisé en ce que l'organe d'entraînement (13) est un vérin pneumatique.
12. Etau selon la revendication 11, caractérisé en ce qu'il comporte .au moins un tiroir de distribution (81) qui présente deux positions et qui règle l'alimentation du vérin pneumatique (13) de telle manière que les mâchoires soient déplacées dans le sens de leur écartement dans l'une des positions du tiroir et qu'elles soient déplacées l'une vers l'autre dans l'autre position.
13. Etau selon la revendication 12, caractérisé en ce que le tiroir de distribution (81) présente une troisième position dans laquelle le vérin pneumatique (13) peut être actionné par une valve à quatre voies.
14. Etau selon l'une quelconque des revendications 1 à 13, caractérisé en ce que les mâchoires (5, 6) sont munies, aussi bien du côté frontal que du côté superieur, de forures d'enfichage disposées suivant des dimensions modulaires, présentant un diamètre cylindrique calibré et un filetage sous-jacent, de telle manière qu'aussi bien du côté frontal que sur le dessus, des mâchoires rapportées (19, 21) de dimensions modulaires prédéterminées ou des mâchoires spéciales adaptées à la pièce à usiner puissent être fixées au moyen de boulons calibrés (17) ou de douilles creuses ajustées et de vis de serrage introduites à travers ces douilles.
15. Etau selon l'une quelconque des revendications 1 à 14, caractérisé en ce que le support (1) est muni, sur la face inférieure, de forures calibrées (87) disposées suivant des dimensions modulaires, avec lesquelles l'étau peut être enfiché et vissé sur une plaque de montage, une équerre de montage ou simlaires.
16. Etau selon l'une quelconque des revendications 1 à 15, caractérisé en ce que la seconde mâchoire (6) peut être serrée contre la surface de glissement (3) du support (1) et fixée sur le support (1) par des contreclavettes descendantes (35) qui peuvent etre actionnees par des cames de serrage (11).
17. Etau selon la revendication 3 ou 4, caractérisé en ce que la came se compose de deux curseurs qui sont disposés de part et d'autre du levier (41) et roulent sur des galets (53) ou des surfaces de glissement, curseurs qui présentent une rainure de came (57) qui est inclinee suivant un angle aigu par rapport à la direction de mouvement et dans laquelle s'engagent des coulisseaux montés sur le levier.
EP83108790A 1982-10-06 1983-09-07 Etau, en particulier pour machine-outil Expired EP0107763B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83108790T ATE38483T1 (de) 1982-10-06 1983-09-07 Schraubstock, insbesondere maschinenschraubstock.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5859/82 1982-10-06
CH585982 1982-10-06

Publications (3)

Publication Number Publication Date
EP0107763A2 EP0107763A2 (fr) 1984-05-09
EP0107763A3 EP0107763A3 (en) 1986-01-15
EP0107763B1 true EP0107763B1 (fr) 1988-11-09

Family

ID=4300498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83108790A Expired EP0107763B1 (fr) 1982-10-06 1983-09-07 Etau, en particulier pour machine-outil

Country Status (3)

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EP (1) EP0107763B1 (fr)
AT (1) ATE38483T1 (fr)
DE (1) DE3378407D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0272122A3 (fr) * 1986-12-17 1989-10-18 Tai-Her Yang Etau
DE3733849C1 (de) * 1987-10-07 1989-05-11 Franz Arnold Maschinenschraubstock mit Kraftverstaerker
EP1213095A3 (fr) * 2000-12-08 2004-02-04 HILMA-RÖMHELD GmbH Outil de serrage
CN105618339B (zh) * 2015-11-24 2018-04-24 浙江吉利控股集团有限公司 一种开闭件外板总成涂胶输送装置
CN105538198A (zh) * 2015-12-18 2016-05-04 方德兰 一种用于电路板且带滚轮的安装锁定装置
CN105414940A (zh) * 2015-12-18 2016-03-23 方德兰 一种用于电路板的安装锁定装置控制系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB451049A (en) * 1935-02-20 1936-07-29 C & J Hampton Ltd Improvements in or relating to vices
GB569832A (en) * 1943-10-06 1945-06-11 George Francis Bates Fluid pressure operated vice
GB574859A (en) * 1944-06-07 1946-01-23 Evans & Son Ltd J Improvements in or relating to vices and like gripping devices
GB637808A (en) * 1947-04-05 1950-05-24 Evered & Co Ltd Improvements relating to vices and similar work holders
GB710505A (en) * 1951-05-28 1954-06-16 William Turner Improved vice
DE1141600B (de) * 1956-11-16 1962-12-20 Forkardt Paul Kg Druckluftbetaetigter Spannstock
US4098500A (en) * 1977-11-25 1978-07-04 Kurt Manufacturing Company, Inc. Adjustable member for reducing clamp load losses in a locking jaw vise

Also Published As

Publication number Publication date
DE3378407D1 (en) 1988-12-15
EP0107763A2 (fr) 1984-05-09
ATE38483T1 (de) 1988-11-15
EP0107763A3 (en) 1986-01-15

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