EP0775831B1 - Dispositif de serrage - Google Patents

Dispositif de serrage Download PDF

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Publication number
EP0775831B1
EP0775831B1 EP96117427A EP96117427A EP0775831B1 EP 0775831 B1 EP0775831 B1 EP 0775831B1 EP 96117427 A EP96117427 A EP 96117427A EP 96117427 A EP96117427 A EP 96117427A EP 0775831 B1 EP0775831 B1 EP 0775831B1
Authority
EP
European Patent Office
Prior art keywords
pressure
control valve
spool
consumer
line
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
EP96117427A
Other languages
German (de)
English (en)
Other versions
EP0775831A1 (fr
Inventor
Georg Neumair
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.)
Hawe Hydraulik GmbH and Co KG
Original Assignee
Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG
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 Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG filed Critical Heilmeier and Weinlein Fabrik fuer Oel Hydraulik GmbH and Co KG
Publication of EP0775831A1 publication Critical patent/EP0775831A1/fr
Application granted granted Critical
Publication of EP0775831B1 publication Critical patent/EP0775831B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
    • F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • F15B2211/30515—Load holding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F15B2211/3053—In combination with a pressure compensating valve
    • F15B2211/30535—In combination with a pressure compensating valve the pressure compensating valve is arranged between pressure source and directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/327—Directional control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40507—Flow control characterised by the type of flow control means or valve with constant throttles or orifices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41509—Flow control characterised by the connections of the flow control means in the circuit being connected to a pressure source and a directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member

Definitions

  • the invention relates to a clamping module in the preamble of Claim 1 specified Art.
  • the directional control valve is a black and white valve that is suitable for both adjustment directions each have a through opening releases predetermined size. This results in everyone Direction of movement a certain speed of movement Tensioner. Because the jig is not too fast the clamping position may be reached, the adjustment takes place, relatively slow, especially at low clamping pressure. at large strokes take a lot of time. Because with modern Machine tools the clamping device, e.g., a Tailstock quill or tailstock after every work cycle first far into a starting position and then back into the Clamping position should be used for clamping uncritical stroke can be adjusted in rapid traverse, and should approximate the tension position in the creeper and run under pressure.
  • a clamping module known from DE-AS 23 10 193 is missing Rapid traverse and a creeper.
  • Each spool directional control valve works on a mobile working device together with a pressure compensator, the one forms load-dependent inlet regulator.
  • For a rapid traverse function is between the load pressure line and the pump or.
  • Return line provided a further directional valve.
  • the load pressure line is a check valve in normal operation from the additional directional control valve or from the return Cut.
  • the load pressure line is used for the rapid traverse function acted on by the pump pressure, so that the pressure compensator of the inlet regulator opens at the front. It is typically one for a mobile crane usual valve arrangement, which is suitable for a machine tool clamping device is not suitable.
  • the invention has for its object a clamping module to create the type mentioned, the structurally simple Building at least one rapid traverse and one creeper.
  • the creeper throttle limits in the crawler gear switch position the directional control valve the speed of the clamping device, which slowly moves into the clamping position.
  • the Pressure reducing valve monitors compliance with its pressure switch of the clamping pressure. Only in the rapid traverse switch position is a rapid adjustment via the unthrottled flow path the tensioner controlled. The structural Additional effort for the creeper and rapid traverse is low, because components already provided in the clamping module anyway be used for the additional functions. Also in The pressure reducing valve can move rapidly with the pressure switch Monitor pressure. The for the important function of the pressure switch of the pressure reducing valve required consumer pressure tapping is upstream of the consumer pressure tap arranged creeper throttle is not affected. A large stroke can be traversed quickly in rapid.
  • a proportional magnet adjusts depending on the current the directional valve. This can be beneficial if the directional valve in addition to a rapid or crawl gear shift position another rapid traverse and / or crawl gear switch position would be required. It could also be a step solenoid with multiple Switching magnets are used.
  • the control is structurally simple in rapid traverse and reached in crawl.
  • the pressure medium In the rapid traverse switch position the pressure medium can be essentially unthrottled flow to the jig.
  • In the creeper gear position the pressure medium in the directional spool has the creeper throttle to happen so that there is a low creeper speed results.
  • the load pressure tap reports the consumer pressure for the pressure switch on the pressure reducing valve.
  • the load pressure tapping is structurally simple provided with a switch depending on the stroke of the slide, around the load pressure tapping and thus a work of the Then secure the pressure reducing valve with its pressure switch, when the clamping pressure has to be monitored.
  • Claim 7 is directed to a structural simplification.
  • the actuating movements of the switching magnet transmitted directly and precisely.
  • the attacks and / or change the ram lengths Change speeds for creeper and / or rapid traverse.
  • the adjustment speed of the Clamping device at least in the rapid traverse switching position of the Adjust directional valve as required.
  • the adjusting screw sets the end position of the slide with regard to a desired one Passage size fixed, e.g. via the armature of the switching magnet, which for the expediently also as a rapid traverse switching position designed third switching position of the directional valve is provided for the other direction.
  • the Clamping module M is e.g. programmed by a not shown Control device performed.
  • the clamping module M is connected to a pump line P and to a Return line R connected.
  • the pump line P leads to an adjustable pressure reducing valve D, which with the return line R is connected.
  • From the pressure reducing valve D leads on the output side a supply line P 'to an input 7 a directional control directional control valve W.
  • the return line R is connected to a port 8 of the directional control valve W.
  • a housing 2 of the pressure reducing valve D has a control input 4 and an electrical pressure switch 5 on that to the higher-level control "clamping pressure reached "or" clamping pressure not reached "reports and responsive to control movements of the control piston 1.
  • the directional control valve W is in this version adjustable between four switch positions, namely by means of a magnetic actuation 11, which in the present case Series magnets 11a and 11c connected in series on one side and a switching magnet 11b on the other side.
  • a spool 10 is included in the directional control valve W, which has a basic position "0" in the four switch positions (shown), when the step magnet 11c is excited Creep gear switch position c, when the step magnet is energized 11a a rapid traverse switch position a, and when the Shift solenoid 11b another rapid traverse switching position b for takes the opposite direction.
  • At the directional valve W are on connections 12, 13 consumer lines A, B (one double-acting hydraulic cylinder) to the clamping device S connected.
  • a consumer pressure tap Z is provided, which is in a crawl gear position c present flow path 15 is the upstream of the consumer pressure tap Z a creeper throttle K contains.
  • the consumer pressure drawn is over a flow path 14 is provided at connection 9 of the directional valve, 1 in the creeper gear shift position c.
  • the rapid traverse switch position a is in Slider 10 is a substantially unthrottled flow path to the consumer line A, and in the other rapid traverse switch position b a also essentially unthrottled Flow path 15 "to the consumer line B.
  • the switch positions a and b is the connection 9 of the directional control valve W relieved to return R.
  • the directional control valve W and the pressure reducing valve D are shown in FIG. 2 housed a common housing G, such that the Supply line P 'from the control piston 1 of the pressure reducing valve D, which cooperates with the pressure switch 5 and through the Control spring 3 is applied approximately in the center and radially leads a bore 16 in which the slide 10 seals is guided.
  • the magnet actuator 11 with the three magnets 11a, 11c, 11b is flanged coaxially to the slide 10 on the housing G.
  • the Stepped magnet 11a has one against a stop fixed to the housing 18 movable armature 17 on a plunger 19th directly engages the slide 10.
  • the step magnet 11c has a movable against a fixed stop 35 Anchor 36 on the plunger 37 on the armature 17th acts.
  • the switching magnet 11b has one in the opposite Direction movable against a stop 21 fixed to the housing Anchor 20 on the via a plunger 22 on the slide 10th attacks.
  • the end position of the slide 10 at least in the Switch position a can be selected by means of an adjusting screw 23, the on the armature 20 and the plunger 22 on the slide 10 acts, and a plunger 23a for manual override may contain.
  • the slider 10 Interspersed in the horizontal section of FIG. 3 associated with FIG. 2 roughly in the same axial plane as the creeper chokes K the slider 10 is a consumer pressure tapping channel 32, which is connected to an axially spaced transverse channel 33 is, the two-sided openings with one in the housing G provided connection 34 to the control pressure line 6 and an approximately diametrically opposite connection 39 to Interact R return. Only in the creeper gear position c (Fig. 4 and 5) there is the tapped consumer pressure in port 34 while in the switch position a the connection 34 and the control pressure line 6 with the port 39 and the return R are connected.
  • blind holes 42 and 43 are expanded Openings of the transverse channel 33 axially offset from one another with the mouths of connections 34 and 39 or with one narrower mouth 44 of the connection 39 depending on the respective stroke position of the slide 10 to certain Working together wisely.
  • Another cross channel 45 in the slide 10 connects, the terminal 34 in the switching position a with the Connection 39.
  • the channels 32, 33 and 45 are indicated in Fig. 2. 2 are the consumer lines A and B separated.
  • the control pressure line 6 is with the return line R in connection. No magnet is excited.
  • the clamping device S holds its position.
  • FIG. 6 and 7 illustrate the rapid traverse switch position a, in which the step magnet 11a is excited and via which to the Stop 18 driven armature 17 and the plunger 19 the slide 10 has moved so far that from the pocket 24 to the consumer puncture 30 the substantially unrestricted flow path 15 is open.
  • the tensioning device S moves in rapid traverse, the speed of which changes according to the pressure in the Supply line P 'and the size of the cross section of the Flow path 15 aligns.
  • the rapid traverse speed can be adjusted by using the adjusting screw 23 the end position of the slide 10 in Fig. 6 is shifted further to the right (reduce speed).
  • FIG 8 and 9 illustrate the further rapid traverse switch position b, in which the switching magnet 11b is excited and over the armature 20 and the plunger 22 the slide 10 in its right Has moved end position.
  • the pockets 24 are unthrottled Flow paths 15 "to the consumer punctures 31 and open to consumer line B.
  • the connection 34 is connected to the connection 39, so that the Pressure reducing valve D has no influence on the rapid traverse speed has and the pressure switch 5 does not respond.
  • 1A is the consumer pressure tap also in the second rapid traverse switch position a active. The one prevailing in the consumer line A. Pressure is supplied to the control piston 1 via the control pressure line 6 of the pressure reducing valve D transmitted.
  • FIGS. 10 and 11 A concrete version of this variant of the M clamping module can be seen from FIGS. 10 and 11.
  • the slider 10 differs differs from the slide previously shown in that the further cross channel 45 omitted and at the upper opening of the transverse channel 33, a second blind bore 41 is provided, the in the rapid traverse switch position a the transverse channel 33 with the Connection 34 to the control pressure line 6 connects while the Cross channel 33 is separated from port 39.
  • a Recess 48 formed in from the outside to the creeper throttle K leads at least one radial bore 46.
  • creeper gear position c can do that Pressure medium from the pocket 24 only the way through the radial bore Take 46.
  • the slider 10 continues into the rapid traverse switching position a adjusted (see Fig. 6 and 7), then works an edge 47 of pocket 24 with one from an edge of the consumer puncture 30 formed control edge 38 together to the passage for the substantially unthrottled flow connection 15 from the pocket 24 into the puncture 30 to open.
  • the magnet actuator 11 could be used for more than one creeper gear or / and rapid traverse have a corresponding number of step magnets or a proportional magnet (not shown) that is dependent executes the adjustment strokes from the current supply.
  • a proportional magnet (not shown) that is dependent executes the adjustment strokes from the current supply.
  • the directional valve W could be in its own, and from Pressure reducing valve D may be arranged in a separate housing.
  • the pressure reducing valve D could be designed as in the DE-A-42 37 901 or DE-U-94 13 273, hereby emphatically Reference is made.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Paper (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Magnetically Actuated Valves (AREA)

Claims (9)

  1. Module de bridage hydraulique (M) pour dispositifs de bridage de machines-outils (S), comportant, raccordé à une source de pression, un détendeur (D) comportant un pressostat qui surveille la pression de bridage et contenant un piston de régulation (1), auquel est raccordée une vanne de distribution à commande directionnelle (W) reliée au retour (R) par l'intermédiaire d'une ligne d'alimentation (P'), qui est reliée par l'intermédiaire de lignes de récepteurs (A, B) au dispositif de bridage (S), et comportant dans la vanne de distribution (W) un piquage de pression de récepteur (Z) relié par une ligne de commande (6) à une entrée de régulation (4) du détendeur (D), caractérisé en ce que la vanne de distribution (W) est réglable pour au moins un sens de déplacement du dispositif de bridage (S) sur au moins une position de marche lente (c) et sur au moins une position de marche rapide (a), que dans la vanne de distribution (W) une vanne d'étranglement de marche lente (K) est prévue en amont du piquage de pression de récepteur (Z), que dans la position de marche lente (a) une voie d'écoulement étranglée (15) au moyen de la vanne d'étranglement de marche lente (K) est prévue entre la ligne d'alimentation (P') et la ligne de récepteur (a), et que dans la position de marche rapide (a, b), une voie d'écoulement (15', 15'') sensiblement non étranglée est prévue entre la ligne d'alimentation (P') et la ligne de récepteur (A, B).
  2. Module de bridage selon la revendication 1, caractérisé en ce que dans la vanne de distribution (W) est prévue une liaison de décharge (39, R) par l'intermédiaire de laquelle la ligne de commande (6) est déchargée vers le retour (R) dans la position de marche rapide (a, b) de la vanne de distribution (W).
  3. Module de bridage selon la revendication 1, caractérisé en ce que la vanne de distribution (W) comporte au moins pour un sens de déplacement du dispositif de bridage (S) un actionneur à aimant à deux étages (11) comportant deux aimants (11a, 11c) disposés en ligne l'un derrière l'autre.
  4. Module de bridage selon la revendication 1, caractérisé en ce que la vanne de distribution (W) comporte au moins pour un sens de déplacement du dispositif de bridage (S), de préférence pour plus de deux positions de commutation, un actionneur à aimant proportionnel comportant un aimant proportionnel.
  5. Module de bridage selon l'une des revendications 1 à 4, caractérisé en ce que dans la vanne de distribution (W) est prévu un tiroir (10) réglable axialement dans un trou de boítier (16) comportant au moins une poche (24) médiane côté périphérique, à laquelle sont associés, par l'intermédiaire de zones d'étanchéité côté périphérique du tiroir (10), des deux côtés, des rétrécissements périphériques du retour (25) écartés, que la ligne d'alimentation (P') est raccordé de manière centrale radialement au trou de boítier (16), que le retour (R) est raccordé axialement par l'intermédiaire de zones d'étanchéité de paroi de trou (28, 29) écartées de part et d'autre de la ligne d'alimentation (P') au trou de boítier (16), que dans les deux zones d'étanchéité de paroi de trou (28, 29) est prévue chaque fois une gorge de ligne de récepteur (30, 31), que la vanne d'étranglement de marche lente (K) est formée dans la transition de la poche (24) vers une zone d'étanchéité (26) du tiroir adjacente à la poche, et que dans la zone d'étanchéité (26) du tiroir débouche un canal de piquage de pression (32) dont l'embouchure se situe sensiblement dans le même plan radial du tiroir (10) que la vanne d'étranglement de marche lente (K).
  6. Module de bridage selon la revendication 5, caractérisé en ce que le canal de piquage de pression (32) dans le tiroir (10) est relié à un canal transversal (33), qui comporte des ouvertures des deux côtés dans le pourtour du tiroir, que dans le trou (16) sont prévues pour coopérer avec les deux ouvertures du canal transversal (33) une jonction de ligne de commande (34) et une jonction de retour (39), et que soit les deux ouvertures du canal transversal (33) soit les deux jonctions (34, 39) sont décalées dans la direction axiale l'une par rapport à l'autre.
  7. Module de bridage selon la revendication 5, caractérisé en ce que la vanne d'étranglement de marche lente (K) est au moins un trou radial (46), qui dans le tiroir (10) conduit vers la poche (24), et que la gorge de la ligne de récepteur (30) comporte dans la paroi de trou une arête de commande (38) coopérant avec le trou (46) dans la position de marche lente (c) et avec la poche (24) dans la position de marche rapide (a).
  8. Module de bridage selon l'une des revendications 3 à 7, caractérisé en ce que les aimants de commutation (11a, 11c) comportent des induits (17, 36) capables de translation contre des butées (18, 35) fixes par rapport au boítier, parmi lesquels l'induit (17) le plus proche du tiroir (10) comporte un premier poussoir (19) venant en prise sur le tiroir (10), tandis que le second induit (36) comporte un poussoir (37) venant en prise sur le premier induit (17), et que le second induit (36) peut être bloqué sur sa butée (35) dans une position dans laquelle le premier induit (17) fait face à sa butée (18) avec un écartement.
  9. Module de bridage selon l'une des revendications 3 à 8, caractérisé en ce que la vanne de distribution (W) est équipée sur l'actionneur à aimant (11) d'un dispositif de réglage de course de tiroir (23), par lequel est réglable au moins la position d'extrémité du tiroir (10) dans la position de marche rapide (a) de la vanne de distribution (W).
EP96117427A 1995-11-24 1996-10-30 Dispositif de serrage Expired - Lifetime EP0775831B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29518705U DE29518705U1 (de) 1995-11-24 1995-11-24 Spannmodul
DE29518705U 1995-11-24

Publications (2)

Publication Number Publication Date
EP0775831A1 EP0775831A1 (fr) 1997-05-28
EP0775831B1 true EP0775831B1 (fr) 2002-07-10

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ID=8015908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96117427A Expired - Lifetime EP0775831B1 (fr) 1995-11-24 1996-10-30 Dispositif de serrage

Country Status (4)

Country Link
EP (1) EP0775831B1 (fr)
AT (1) ATE220449T1 (fr)
DE (2) DE29518705U1 (fr)
ES (1) ES2179142T3 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2310193C2 (de) 1973-03-01 1974-11-21 Index-Werke Kg Hahn & Tessky, 7300 Esslingen Sicherheits-Druckregelventil zur Einstellung eines konstanten Arbeitsdrukkes
DE4234036A1 (de) 1992-10-09 1994-04-14 Rexroth Mannesmann Gmbh Ventilanordnung, insbesondere zur Ansteuerung eines hydraulischen Verbrauchers an einem mobilen Arbeitsgerät
DE4237901C2 (de) 1992-11-10 1996-02-01 Heilmeier & Weinlein Elektrohydraulische Steuervorrichtung und Druckminderventil
DE9413273U1 (de) * 1994-08-17 1994-10-06 Heilmeier & Weinlein Spannmodul für Werkzeugmaschinen-Spannvorrichtung

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DE59609431D1 (de) 2002-08-14
EP0775831A1 (fr) 1997-05-28
ES2179142T3 (es) 2003-01-16
ATE220449T1 (de) 2002-07-15
DE29518705U1 (de) 1996-01-18

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