EP0962285A2 - Dispositif de serrage à genouillère, en particulier pour la construction en carrosserie dans l'industrie automobile - Google Patents

Dispositif de serrage à genouillère, en particulier pour la construction en carrosserie dans l'industrie automobile Download PDF

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Publication number
EP0962285A2
EP0962285A2 EP98124288A EP98124288A EP0962285A2 EP 0962285 A2 EP0962285 A2 EP 0962285A2 EP 98124288 A EP98124288 A EP 98124288A EP 98124288 A EP98124288 A EP 98124288A EP 0962285 A2 EP0962285 A2 EP 0962285A2
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EP
European Patent Office
Prior art keywords
piston
cylinder
toggle lever
clamping
subsequent
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
EP98124288A
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German (de)
English (en)
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EP0962285A3 (fr
EP0962285B1 (fr
Inventor
Josef-Gerhard Tünkers
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.)
Tuenkers Maschinenbau GmbH
Original Assignee
Tuenkers Maschinenbau 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
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Application filed by Tuenkers Maschinenbau GmbH filed Critical Tuenkers Maschinenbau GmbH
Publication of EP0962285A2 publication Critical patent/EP0962285A2/fr
Publication of EP0962285A3 publication Critical patent/EP0962285A3/fr
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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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • 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
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive
    • 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
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive
    • B25B5/064—Arrangements for positively actuating jaws with fluid drive with clamping means pivoting around an axis perpendicular to the pressing direction
    • 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
    • B25B5/12—Arrangements for positively actuating jaws using toggle links
    • B25B5/122—Arrangements for positively actuating jaws using toggle links with fluid drive
    • 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
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/223—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which completely seals the main fluid outlet as the piston approaches its end position
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches

Definitions

  • the invention relates to a toggle lever tensioning device, in particular for use in the body shop of the automotive industry.
  • EP 0 778 107 A1 describes a toggle lever tensioning device, in particular for use in body construction in the automotive industry, with a clamping head and an adjoining cylinder in axial extension, in which an alternating on both sides by pressure medium, preferably by air pressure, the piston to be loaded is guided in a longitudinally displaceable and sealing manner, which reaches through the cylinder and the clamping head with its piston rod, whereby at the free end of the piston rod within the housing, a toggle joint arrangement is attached, which is assigned a clamping arm, the Piston the cylinder into a cylinder return displacement and into a cylinder clamping space divided, and that the cylinder span at the end face by a Lid is sealed, which has a damping device for braking is assigned to the opening movement of the piston, the cylinder return displacement and the cylinder span alternately via a connection channel either connect to the pressure medium source or vent is, with the pressure relieving the cylinder clamping space or with the pressure medium source Connection channel to be connected by a certain opening stroke of the Piston
  • the damping device is controlled or adjustable. It is suggested that Damping device depending on the opening angle of the tension arm preferably continuously adjustable, in particular adjustable in length, to train. This should be done by machining. Thereby the possibility is to be opened, the throttle device depending on the operating conditions adjust, so that a particularly sensitive and can achieve precise damping effect. To the end position damping via a To enable a larger range from 0 to 135 ° swivel angle Damping device in its axial extension with respect to the piston adjustable in length and lockable. Either through stepless or other change in the axial length of the throttle body with his Supporting piston, the throttle device can be selected depending on the desired Change the swivel angle of the clamping arm.
  • This length adjustability can be done steplessly, but also by material removal, in which to Example of the protrusion is covered by depending on the swivel angle of the tension arm to achieve the desired damping effect.
  • the damping body can consist of two or more telescopically adjustable parts consist. These parts can be screwed together, for example be connected. It is also suggested that the length be hydraulic, for example by adjusting the stroke of a piston in a cylinder adjust and thereby the desired swivel angle of the Poor to take into account and the desired damping effect achieve.
  • a toggle lever clamping device for the body shop with a clamping head rectangular in a cross section guided orthogonally to the longitudinal axis of the piston rod, which is constructed from two housing parts, and with a cylinder adjoining the cylinder-side end of the clamping head in an axial extension , in which a piston to be acted upon alternately on both sides by pressure medium pressure, in particular by air pressure, is guided in a longitudinally displaceable and sealing manner, with its piston rod engaging axially through the cylinder and a cavity of the clamping head, a toggle joint arrangement being fastened to the free end of the piston rod and having a clamping arm is coupled with limit switches or position transmitters in the form of microswitches, inductive switches, pneumatic switches or sensors which are integrated in a space of the clamping head, the switches being adjustable relative to one another and the cover f r have the same forming holder are arranged as a total exchangeable cassette query in the form of a circuit board in the area of a
  • the profile can be in a cross section that is orthogonal to the longitudinal axis of the piston rod L "-shaped, the web of the L “runs parallel to the longitudinal axis of the piston rod and has the switches adjustable, while the crossbar closes the slot to the outside.
  • Another construction can be provided with a clamping head consisting of two shell-shaped housing parts, which lie flat on one another and the toggle joint arrangement, encapsulate the piston rod, the limit switches, in a dirt and dust-tight manner to the outside, the two shell-shaped housing parts on one narrow side of the cross-sectionally rectangular clamping head having the slot for arranging the interrogation cassette.
  • This toggle lever tensioning device is provided with an end stop for the toggle joint arrangement, primarily in the top dead center position s equipped with a toggle joint, the end stop being designed as an externally operable stop that is adjustable in its longitudinal axis direction, in particular as a threaded plug.
  • the interrogation cassette is inserted into the housing from the rear of the tensioner housing through a narrow, slit-shaped recesses.
  • DE 42 42 601 A1 describes a piston-cylinder arrangement with an in a cylinder guided and between two end position limiting elements piston displaceable by pressurization with a piston rod, wherein at least one of the two end position limiting elements in axial direction is adjustable within the cylinder. That at least an end position limiting element is designed as a damping element and with one between the piston and the damping element during the lifting movement built up pressure medium cushion works. That the at least one end position limiting element is held against rotation within the cylinder and is adjustable by means of a spindle mounted on the cylinder. This spindle is formed and extends at least in some areas as a threaded spindle by a threaded hole in the one end position limiting element a corresponding recess in the piston rod.
  • the spindle is by means of a Handwheel arranged on the face of the cylinder can be rotated.
  • the one in question End position limiting element is for length adjustment by means of a External or internal thread in a corresponding counter thread on the cylinder arranged. Simultaneously with the adjustment of the relevant end position limiting element become switches for controlling the piston-cylinder arrangement with adjusted.
  • the fact that the one end position limiting element in axial direction within the cylinder is stepless Adjustment of the stroke length of the piston rod according to the respective requirements to reach.
  • the adjustment of the end position limiting element takes place by means of a bearing on an outer housing cover of the cylinder and through a threaded hole in the end position limiting element extending into a corresponding recess in the piston rod Spindle.
  • U1 relates to a tensioning device consisting of a Headpiece with adjusting mechanism for the tensioning lever and one with anchor rods actuating cylinder attached to the head piece for the actuating mechanism, whereby End position query elements adjustable in the area of the actuating cylinder are arranged, which are in operative connection with the piston rod End position sensor is assigned and its cable to the cylinder end are, the end position query elements such as microswitches on bracket-like Carriers are arranged, which are adjustable and fixable on two adjacent anchor rods to sit.
  • DE 22 22 686 B2 relates to a pressure-operated toggle lever tensioning device, in particular for body parts, consisting of a housing with a Cylinder space for the piston, on the free piston rod guide means arranged for the piston rod and a piston rod pin are over a tab with the knee joint of a workpiece clamping angle lever is connected, which is mounted on a bearing journal in the housing is pivotally mounted, the guide means for the piston rod consisting of the ends of the piston rod pin and arranged in the housing, in the axial direction of the piston rod guide grooves for Leading these ends.
  • the housing on the side with the free piston rod end has a design independent of the cross section of the piston rod and seal-free movement space.
  • the passage width is provided such that the pressure medium leaving the cylinder chamber the piston in the final phase dampens its movement.
  • the cylinder chamber also serves as Damping space and makes a special throttling chamber unnecessary.
  • the toggle lever tensioning device is further characterized in that the housing carries a mounting eye and this is mounted on a pivot pin is to pivot the housing when moving the piston and to allow the piston rod.
  • the swivel range is characteristic of the angle lever is infinitely variable in size due to the variably adjustable
  • the stroke of the piston can be changed. It is possible to use the angle lever to move in a swivel range up to 180 °.
  • the piston rod is out their end position always safe and movable without any special effort, too if the angle lever is pivoted into the zero or dead position.
  • the buffer on the bottom is a buffer made of rubber or rubber.
  • a toggle lever tensioning device in particular for Known for use in body construction, with one clamping head and one in an axial extension adjoining the cylinder, in which an alternating on both sides by pressure medium pressure, preferably by air pressure Acting piston is longitudinally displaceable and sealed, the with his piston rod reaches through the cylinder and the clamping head.
  • the end of the piston rod inside the housing is a toggle joint arrangement attached, which is assigned a clamping arm, the piston Cylinder in a cylinder return displacement and in a cylinder clamping displacement divided, with the cylinder return displacement and the cylinder clamping displacement over one connection channel each alternately either to connect to the pressure medium source or are to be vented.
  • the cylinder clamping displacement is at the end sealed by a lid, which a damping device assigned to brake the opening movement of the piston is.
  • the invention has for its object a toggle lever clamping device, in particular for use in body construction in the motor vehicle industry, that their establishment and adjustment on the one hand is particularly easy is, on the other hand, its exterior largely freed from interfering device parts is.
  • the matching parameters can be So cylinder end position, opening angle of the clamping arm, end position detection and if necessary also adjust the end position damping and in the also lock the desired position. This can also be done during of the company. This is an advantage if, for example should show that tolerances are not strictly observed or Change the contours of the parts to be clamped.
  • the actuating element can be operated to the desired Make adjustments, so to speak, with one hand.
  • the actuator enables each desired sensitive setting under operating conditions. Since that Control element at a non-obstructive point, for example on the cylinder bottom, can be arranged, the outer contour of the toggle lever device not adversely affected, so that its all-round attachment possibility preserved from four sides. Then no openings are required to be provided on the cylinder, on the clamping head or the like, for example to arrange sensors. Rather, it is with this configuration possible, all electrical lines, sensors and damping elements in the toggle clamp, for example in the cylinder and / or To relocate Spannkopt.
  • sensors and contacts are in all embodiments as well as electrical lines arranged protected in the toggle lever clamping device. It is particularly advantageous, however, that a simple Tool, if necessary, cylinder end detection, opening angle, end position detection and possibly end position damping simultaneously and in the same direction, So very quickly and with a built-in toggle clamp device change and lock.
  • the adjusting device is designed as an adjusting screw which can be locked by a lock nut.
  • the adjusting device is designed as a linear motor, air motor, hydraulic motor, as a piston-cylinder unit to be acted upon alternately on both sides with pressure medium pressure.
  • the brake piston is supported and locked by a plurality of interchangeable bodies which are arranged one behind the other in the longitudinal axis direction of the cylinder and are supported against one another, so that the axial position of the brake piston and.
  • the spacer elements are formed as rings in accordance with patent claim. 6 These are also rotationally symmetrical parts that are easy to manufacture. These rings can, for example, consist of a suitable plastic, which contributes to minimizing weight.
  • the internal hexagon screw can be countered by an internal hexagon nut, whereby both the head of the set screw and the head of the counter nut are arranged in an enlarged recess in the bore in the cylinder base - claim 8.
  • the internal hexagon nut is first half Disengaged gear, whereupon the set screw can be turned with an Allen key through the inner opening of the hexagon nut to make the new setting. Then the set screw is locked again using the lock nut.
  • the set screw is sealed on its threaded length section by a sealing element in the cylinder base pressure-tight - claim 9.
  • the brake piston is provided with a one-piece bearing attachment, which has the thread for the set screw - claim 10.
  • the piston and the brake piston together form the damping device for braking the opening movement of the piston.
  • the adjusting element can be used to adjust the brake piston axially in order to adjust and lock the cylinder end position, the opening angle of the tensioning arm and possibly end position detection and end position damping simultaneously and together.
  • the control element can be mechanically, hydraulically or electrohydraulically adjustable as in the embodiment according to claim 1.
  • the brake piston is preferably provided centrally with the adjusting screw with a brake chamber in which the piston sealingly engages with a one-piece extension designed as a damping piston .
  • the throttle device having a channel with throttle bores and / or throttle valve is arranged in the brake piston, the throttle device connecting the cylinder return displacement space to a relaxation space arranged on the rear side of the brake piston, which is connected to the relief channel.
  • Claim 14 describes a further advantageous embodiment of the invention.
  • the set screw passes through the spacer and is in the thread of the Brake piston screwed in, so that the brake piston against the spacer and is axially braced against the cylinder bottom. This results in a reliable, accurate locking.
  • an embodiment according to claim 15 is particularly advantageous .
  • the end interrogation devices such as sensors, microswitches, inductive proximity switches or the like are in the piston and / or in the brake piston and / or in the cylinder wall and / or in the tensioning piston, that is to say in the toggle lever tensioning device arranged integrated and thus protected in the device itself.
  • the toggle lever tensioning device arranged integrated and thus protected in the device itself.
  • toggle lever tensioning device can be easily attached to device parts from all four sides, that is to say also from the rear, which is in some cases particularly advantageous.
  • Claim 18 shows a further advantageous embodiment of the invention.
  • the sensors and the like are integrated in the toggle lever tensioning device and arranged in a protected manner.
  • a solution according to claim 24 is also particularly advantageous.
  • essential lines but also a pneumatic directional valve and the like, are integrated in the adapter plate.
  • the position transducer allows the positions to be exactly determined and, for example, forwarded to a PC or a PLC, which, for example, can trigger a sequence control automatically and / or manually.
  • claim 26 describes a further advantageous solution.
  • All embodiments are characterized in that with only one simple Tool, for example an Allen key, both the Allow the lock nut and the adjusting element to operate to the required Setting the brake piston and thus the swivel angle or the like to accomplish.
  • This allows the parameters to be set very sensitive, if necessary stepless, adjust and in each also lock the desired position. This also happens with built-in Toggle clamps without loosening any construction parts, since the adjusting element designed as an adjusting screw is from the cylinder bottom is accessible from.
  • the reference numeral 1 denotes a clamping head to which a cylinder 2 is axially connected.
  • the cylinder 2 is closed at the end facing the clamping head 1 by a wall or a cover 3 and on its opposite end by a cylinder base 4, for example in the form of a cover, in a pressure-tight manner.
  • a piston 5, which is sealed by a seal 6, is arranged in the cylinder 2 in a longitudinally displaceable and sealing manner.
  • the piston 5 is connected to a piston rod 7.
  • the piston rod 7 passes through a bore 8 in the cover 3 and is sealed by a seal 9 in a pressure-tight manner.
  • the cross section of the cylinder is designed as a cylinder deviating from the circular shape, for example flat oval.
  • the piston 5 is adapted to this cross-sectional shape, so that it is guided against rotation in the cylinder 2.
  • “Flat oval” is understood to mean a cross-sectional shape that consists of longer sides that run parallel to one another in a cross section that runs orthogonally to the longitudinal axis of the cylinder 2 and that are connected to each other on the narrow sides facing away from each other by circular arcs or curves.
  • oval shapes are also possible.
  • the piston rod 7 passes axially through the clamping head 1 and is at its end connected to a toggle joint assembly 10, which is an unspecified Clamp arm is assigned.
  • the tension arm is in direction A respectively B by a certain swivel angle around a housing-fixed Axis 11 is pivotally arranged in the clamping head 1.
  • the swivel angle can be obtuse.
  • the clamping head 1 has a housing that in the illustrated embodiment consists of two shell-shaped housing parts that are sandwich-like and lie on each other without gaps (not shown) and thus the piston rod 7, the toggle joint assembly 10 and all other between the housing parts encapsulate objects in a dirt and moisture-proof manner.
  • the housing parts are separated from each other by a straight dividing plane separated, so that the housing parts lie flat on one another through walls and releasably connected to each other by screws (not shown) are. If necessary, the walls can also have sealing elements be assigned.
  • These housing parts are closed on all sides and only have an approximately semicircular one on each side Recess on (not shown), which thus complement the bore 8, through which the piston rod 7 in the space delimited by the housing parts 12 protrudes.
  • the toggle joint arrangement 10 is also in this space 12 arranged. The end of the piston rod 7 located within the space 12 and the toggle joint assembly 10 are thus dirt, dust and spray liquid tight encapsulated to the outside.
  • the two shell-shaped housing parts each have an orthogonally penetrating one Bore on (not shown) through which the axis 11 passes. Instead, the axis 11 can also not penetrate into the outside Moldings of the relevant housing part can be stored. Furthermore the two shell-shaped housing parts have guide grooves (not shown). The guide grooves can be of the same design and with each other correspond in the assembled state of the housing parts, such that the toggle joint assembly 10 with associated components for Example by rollers, is guided with low friction in the longitudinal axis direction. Of further the housing parts have holes for screws, not shown by means of which the housing parts are screwed together in a joint-tight manner.
  • the bores of a housing part can be used as through bores be formed while the associated coaxially arranged thereto Holes in the other part of the housing Blind holes with thread are.
  • the housing parts can be made of steel or aluminum or any other suitable Material, for example made of an injection molded material.
  • the one another walls in the parting plane can be of high quality, For example, ground or cast with the appropriate surface quality be so that they are full and tight on each other.
  • the toggle joint arrangement 10 can be assigned fork arms (not shown) be that with their ends square or polygonal in cross section designed end portions of the axis 11 are arranged. This can a retaining tab can be provided which against the fork-shaped end of the associated Fork arm attacks and with formally adapted recesses engages around the end sections of the pivot pin and with the relevant one Fork arm is connected by screws (also not shown).
  • a screw-on part can also be assigned to the fork arm, which is centric or is arranged eccentrically with respect to the fork arm.
  • the housing of the clamping head 1 is orthogonal to the longitudinal axis of the Piston rod 7 guided cross section rectangular (not shown).
  • the housing can in principle be on four sides, namely on the opposite sides of the rectangle optionally on device parts, for example in the body shop of the automotive industry, attached, for example screwed on, become.
  • a brake piston coaxially opposite 13 arranged, which in all embodiments by an actuator 14th is adjustable and lockable in the longitudinal axis direction.
  • This actuator 14 is as threaded in the illustrated embodiments Bolt formed, which facing the cylinder bottom 4 End section with a head 15 with an internal polygon, for example an internal hexagon 16, is provided.
  • the head 15 of the actuator 14 is by a Lock nut 17 to lock in the illustrated embodiments also with an internal polygon, preferably also with an internal hexagon, is provided.
  • the inner polygon is the Lock nut 17 formed as a through opening, so that a corresponding Tool centered through the lock nut also in the inner polygon 16 of the head 15 of the actuator 14 can be reached to after loosening the lock nut 17, the control element 14 in one or the other Rotate direction, thereby the brake piston 13 in the axial direction, ie to adjust in the X or Y direction.
  • the lock nut 17 loosened this by half a gear. Thereupon can be opened with an appropriate socket wrench through the inner opening Lock nut 17 inserted into the inner polygon of the control element 14 to turn them in one direction or the other.
  • the head 15 of the control element 14 and the lock nut 17 are in a corresponding Recess 18 of the cylinder bottom 4 arranged coaxially to the control element 14 and thus also to the brake piston 13 and again coaxially to the piston 5 and the piston rod 7 is arranged.
  • the lock nuts 17 for example entirely in the threaded recess 18 while in the embodiment of FIG. 2, the lock nut 17 with a Ring collar 19 is supported against the outside 20 of the cylinder base 4.
  • the non-threaded bolt part 21 of the actuating element 14 sealed by a seal 22 in a pressure medium-tight manner.
  • the seal 22 is in an annular groove in the cylinder base 4.
  • the pressure-tight seal takes place by a seal 23, which is arranged in an annular groove 24 behind the annular collar 19 is.
  • the brake piston 13 is at least in the embodiments according to FIGS. 1 and 2 by means of a seal 26 arranged in a groove opposite to pressure medium the cylinder inner wall 27 sealed.
  • an in with the piston 5 Direction on the brake piston 13 with excellent material in one piece the piston 5 designed damping piston 25 connected in its Inside is provided with a chamber formed by a blind bore 28, in which at the axial stroke of the piston 5, the actuator 14 with a certain Longitudinal section is able to submerge.
  • the brake piston 13 has one with a throttle device in all embodiments 29 provided channel on the one cylinder clamping displacement 30th with a relaxation space arranged on the rear of the brake piston 13 31 fluid pressure connection.
  • This relaxation room 31 is via a channel 32 to the outside or to another relaxation room connected, in which the pressure medium, preferably compressed air, escape can.
  • Cylinder return displacement 34 On the side of the piston opposite the cylinder clamping displacement 30 5 is a pressure medium to be acted upon via a channel 33 Cylinder return displacement 34.
  • the damping piston 25 increases from a certain stroke sealing entry.
  • the damping piston 25 an annular groove with a seal 36, which against the wall 37 of the brake chamber 35 rests sealingly during the movement of the damping piston 25 and thereby the brake chamber 35 and a channel 38 connected to it, which connects the brake chamber 35 and the relaxation space 31, shuts off. From now on, the pressure medium can only pass through the piston 5 via the throttle device 29 are pushed into the relaxation room 31, so that there is some delay and braking of the lifting movement the piston 5 comes.
  • the brake chamber 35 is also missing Damping piston 25 is not available. Rather, the piston rod 7 is included provided a central bore 39 into which the actuator 14 coaxially enter can
  • the brake piston 13 is adjusted in the embodiment according to FIG. 2 intermittently.
  • annular spacers 42 arranged between a shoulder 40 of the brake piston 13 and a screw bushing 41, which is screwed into a recess in the cylinder base 4.
  • annular spacers 42 arranged between a shoulder 40 of the brake piston 13 and a screw bushing 41, which is screwed into a recess in the cylinder base 4.
  • the lock nut 17 is loosened again Inserting a key in the inner polygon of the head 15 the actuator 14 unscrewed, the number of spacers and / or their Shape changed and then again the actuator 14 in the screw thread provided shoulder 40 of the brake piston 13 and screwed the spacer 42 between the shoulder 40 of the brake piston 13 and axially braced the cylinder base 4 or the screw bushing 41, whereby the brake piston 13 is locked accordingly.
  • FIG. 1 there is a contact 43 in the piston 5 for Example made of steel or the like, provided with at least one Sensor 44 cooperates on the opposite side in the brake piston 13 is arranged.
  • a further contact 45 in the form of a steel body or the like is provided, which interacts with a sensor 46.
  • the sensor 46 is in one Bore arranged in the lid or wall 3.
  • a distributor block 47 is arranged in the cylinder base 4, of the electrical or electronic contacts, components and the like.
  • a connector 48 is assigned to this distributor block 47, the one with the appropriate electrical cables for remote access the piston 5 and thus also the position of the clamping arm and the like connected is.
  • the distributor block 47 is also on the one hand via electrical lines 49 and 50, respectively connected to the sensor 44 and on the other hand to the sensor 46.
  • the administration 50 runs in a recess 51 of the cylinder wall and in a corresponding one Channel 52 of the wall or cover 3. This can the positions of the piston 5 and also the position of the clamping arm Interrogate.
  • a spindle instead of a spindle, another suitable adjusting element 14 can be used Example a linear motor that can be controlled remotely, a hydraulic actuator or the like, use.
  • the brake piston 13 in turn has a suitable contact 53, which with a sensor 54 cooperates with an electrical line 55 in connection stands, through an arranged in the piston rod 7 axial bore 56 runs, which are each connected to the outside via radial channels 57 and 58 is.
  • An electrical line 59 is connected to the radial channel 58, which is connected to a distributor block 61 to which a connector 62 is assigned which is arranged in a recess of the clamping head 1. Neither through the distributor block 61 or through the connector 62, the rear-side option this toggle lever clamping device impaired. There are enough Large screw-on surfaces are available so that they can be attached to the back To attach toggle lever clamping device.
  • 60 is a further sensor, which is connected via an electrical line 63 is connected to the distributor block 61.
  • the brake piston 13 is intermittent adjust. By this adjustment by means of the annular spacers but can also simultaneously and in the same direction the cylinder end query, the opening angle of the tension arm, the end position damping and the Change and fix end position detection at the same time.
  • the brake piston 13 is a sensor 64 assigned, which interacts with a contact 65, which is also an off Steel or the like existing body can be that in the aluminum existing piston 5 is arranged. Also in all other embodiments the piston 5 can be made of aluminum or a corresponding alloy be made.
  • a further sensor 66 in a recess the wall or the cover 3 arranged.
  • the cylinder 2 again has a recess in the form of a channel 67 in which electrical Lines 68 and 69 are arranged leading to a distributor block 70 Lead connector 71.
  • Line 68 is connected to sensor 66 while the line 69 is connected to the sensor 64 in an electrically conductive manner.
  • the cylinder end query can be change the opening angle and the end position query simultaneously and in the same direction and lock at the same time.
  • Distribution block 70 with plug 71 interfere with the rear attachment of the toggle lever clamping device not on device parts, since there are enough large areas for the Arrangement of screw holes or the like are present.
  • the reference numeral 72 denotes an adapter plate, which a connector 73 for electrical connection, for example with a Display device, a PC or the like, is connected (not shown).
  • the Adapter plate 72 also has electronics 74. After all, in both 72 end parts of the adapter plate 75 and 76 are provided, those with coupling plugs 77 or 78 in the wall 3 or in the cylinder base 4 work together. Allow plug parts 75 and 76 and coupling plugs 77 and 78 a sealed connection of these to the required extent Parts.
  • the adapter plate 72 extends in the longitudinal axis direction of the cylinder 2 and can in the contour of the outer shape of the cylinder be adjusted so that there are no protruding parts.
  • the adapter plate 72 is interchangeable, so that in the event of malfunctions or other operating conditions Adapter plates 72 with the appropriate configuration are no problem and have it replaced quickly.
  • Electrical lines 79 and 78 run from the coupling plugs 77 and 78, respectively. 80 to the sensors 66 in the wall 3 or 64 in the stop piston 13.
  • FIG. 6 are again the same for parts Function the same reference numerals have been used.
  • This embodiment differs from the embodiment according to FIG. 4 in that an adapter plate 81 with one in the longitudinal direction extending pneumatic line 82 is provided which has a seal Seals 83 cooperates with a channel 84 in the wall 3, which is behind the piston 3 opens into the cylinder return displacement 34.
  • the pneumatic line 82 opens in a sealed manner a pneumatic directional control valve 85, which is integral with the adapter plate 81, but interchangeable, connected.
  • the directional control valve 85 has another pneumatic line 86, which is sealed on the one hand with the directional control valve 85, on the other hand, cooperates with a channel 88 in a sealed manner via a plug part 87, in the cylinder clamping displacement 30 behind the stop piston 13 flows out.
  • An electrical connection is provided at 89.
  • the cylinder 2 On the side opposite the adapter plate 81, the cylinder 2 is a Assigned transducer 90, which consists essentially of a rod-shaped Element exists, which seals in the cylinder bottom 4 via a seal 91 is arranged and on the one hand the stop piston 13 and on the other hand reaches through the piston 5. With 92 a position encoder is designated, while 93 is a seal that the displacement transducer 90 against the piston 5 seals. The piston 5 slides on the displacement sensor 90 at the latter Stroke movement in its axial direction.
  • a receiver is arranged in the cylinder base 4, which has a Electrical line, not shown, with a PLC, a PC, a signal converter or an evaluation device is connected.
  • displacement sensor 90 in a sequence control, which runs automatically, so that when a certain position is reached of the piston 5 corresponding control processes automatically or can also be triggered manually.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Shovels (AREA)
  • Jib Cranes (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Operation Control Of Excavators (AREA)
  • Working Measures On Existing Buildindgs (AREA)
EP98124288A 1998-06-02 1998-12-21 Dispositif de serrage à genouillère, en particulier pour la construction en carrosserie dans l'industrie automobile Expired - Lifetime EP0962285B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19824579A DE19824579C1 (de) 1998-06-02 1998-06-02 Kniehebelspannvorrichtung, insbesondere zur Verwendung im Karosseriebau der Kfz-Industrie
DE19824579 1998-06-02

Publications (3)

Publication Number Publication Date
EP0962285A2 true EP0962285A2 (fr) 1999-12-08
EP0962285A3 EP0962285A3 (fr) 2001-02-07
EP0962285B1 EP0962285B1 (fr) 2006-07-05

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EP98124288A Expired - Lifetime EP0962285B1 (fr) 1998-06-02 1998-12-21 Dispositif de serrage à genouillère, en particulier pour la construction en carrosserie dans l'industrie automobile

Country Status (4)

Country Link
US (1) US6220588B1 (fr)
EP (1) EP0962285B1 (fr)
AT (1) ATE332212T1 (fr)
DE (3) DE19824579C1 (fr)

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FR2831617A1 (fr) * 2001-10-26 2003-05-02 Smc Corp Procede et dispositif d'activation a grande vitesse d'un cylindre de pression
DE102004007346B3 (de) * 2003-11-04 2005-04-21 Tünkers Maschinenbau Gmbh Kniehebelspannvorrichtung - auch Spannwerkzeug wie Punktschweißvorrichtung mit Kniehebelgelenkanordnung, oder Clinchwerkzeug mit Kniehebelgelenkanordnung oder dergleichen -, zur Verwendung im Karosseriebau der Kfz-Industrie
EP1952946A3 (fr) * 2007-02-02 2009-08-05 UNIVER S.p.A. Dispositif de freinage pour appareils de commande à genouillère
DE202014102804U1 (de) 2014-05-22 2014-07-29 Pepperl + Fuchs Gmbh Geber für Kraftspanner
CN110539189A (zh) * 2018-05-29 2019-12-06 安徽省宁国市宁星耐磨材料有限公司 铸钢件精加工固定装置及其方法

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JP3683447B2 (ja) * 1999-10-15 2005-08-17 Ｓｍｃ株式会社 クランプ装置
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DE102006041707B4 (de) * 2006-05-10 2009-01-02 Tünkers Maschinenbau Gmbh Kolben-Zylinder-Einheit (Arbeitszylinder) zum Spannen, und/oder Pressen, und/oder Fügen, und/oder Stanzen, und/oder Prägen, und/oder Lochen und/oder Schweißen, zum Beispiel unter Zwischenschaltung einer Kniehebelgelenkanordnung
JP4789006B2 (ja) * 2006-07-31 2011-10-05 Ｓｍｃ株式会社 クランプ装置
EP1967318A1 (fr) * 2007-03-06 2008-09-10 COMAU S.p.A. Dispositif de localisation et de verrouillage d'éléments d'une plaque métallique pressée avec un corps auxiliaire ayant des passages pour fixer de la tuyauterie
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DE202009002141U1 (de) 2009-02-14 2009-04-23 Tünkers Maschinenbau Gmbh Vorrichtung mit einem über ein Stellglied und einer Kniehebelgelenkanordnung durch einen Antrieb in entgegengesetzten Richtungen antreibbaren Hebel, dem eine oder mehrere Massen zugeordnet ist bzw. sind, insbesondere zur Verwendung im Karosseriebau der Kfz-Industrie
ES2572365T3 (es) 2009-12-18 2016-05-31 Tünkers Maschb Gmbh Dispositivo con funcionamiento de doble pistón, accionado por aire comprimido, para ser utilizado en la construcción de carrocería de la industria automotriz
DE112010005923B4 (de) 2010-10-06 2015-04-02 Tünkers Maschinenbau Gmbh Energiesparende Kolben-Zylinder-Einheit zum Positionieren oder Zentrieren
DE102011100184B3 (de) * 2011-05-02 2012-08-30 Hohenstein Vorrichtungsbau Und Spannsysteme Gmbh Spannvorrichtung mit Ge- und Entspanntzustandskontrollen
DE102011110129A1 (de) * 2011-08-15 2013-02-21 De-Sta-Co Europe Gmbh Betätigungsvorrichtung
EP2602060A1 (fr) 2011-12-07 2013-06-12 Sigurd A. Riedmayer Dispositif d'actionnement
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2831617A1 (fr) * 2001-10-26 2003-05-02 Smc Corp Procede et dispositif d'activation a grande vitesse d'un cylindre de pression
DE102004007346B3 (de) * 2003-11-04 2005-04-21 Tünkers Maschinenbau Gmbh Kniehebelspannvorrichtung - auch Spannwerkzeug wie Punktschweißvorrichtung mit Kniehebelgelenkanordnung, oder Clinchwerkzeug mit Kniehebelgelenkanordnung oder dergleichen -, zur Verwendung im Karosseriebau der Kfz-Industrie
EP1952946A3 (fr) * 2007-02-02 2009-08-05 UNIVER S.p.A. Dispositif de freinage pour appareils de commande à genouillère
DE202014102804U1 (de) 2014-05-22 2014-07-29 Pepperl + Fuchs Gmbh Geber für Kraftspanner
WO2015177291A1 (fr) 2014-05-22 2015-11-26 Pepperl + Fuchs Gmbh Capteur pour dispositif de serrage électrique
DE102014107267A1 (de) 2014-05-22 2015-11-26 Pepperl + Fuchs Gmbh Geber für Kraftspanner
DE102014107267B4 (de) 2014-05-22 2019-06-13 Pepperl + Fuchs Gmbh Kniehebelspannvorrichtung mit Abfrageeinheit sowie Abfrageeinheit für eine vereinfachte Montage
US10688626B2 (en) 2014-05-22 2020-06-23 Pepperl+Fuchs Gmbh Sensor for power clamp
CN110539189A (zh) * 2018-05-29 2019-12-06 安徽省宁国市宁星耐磨材料有限公司 铸钢件精加工固定装置及其方法
CN110539189B (zh) * 2018-05-29 2022-01-28 中山市岐晔工业材料有限公司 铸钢件精加工固定装置及其方法

Also Published As

Publication number Publication date
EP0962285A3 (fr) 2001-02-07
ATE332212T1 (de) 2006-07-15
US6220588B1 (en) 2001-04-24
EP0962285B1 (fr) 2006-07-05
DE19824579C1 (de) 1999-06-17
DE59813632D1 (de) 2006-08-17
DE29811901U1 (de) 1998-10-08

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