EP3677382A1 - Dispositif de maintien ou de serrage des pièces ainsi que mandrin pour un dispositif de maintien ou de serrage - Google Patents

Dispositif de maintien ou de serrage des pièces ainsi que mandrin pour un dispositif de maintien ou de serrage Download PDF

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Publication number
EP3677382A1
EP3677382A1 EP19150068.5A EP19150068A EP3677382A1 EP 3677382 A1 EP3677382 A1 EP 3677382A1 EP 19150068 A EP19150068 A EP 19150068A EP 3677382 A1 EP3677382 A1 EP 3677382A1
Authority
EP
European Patent Office
Prior art keywords
holding
closing
base body
mandrel
section
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.)
Withdrawn
Application number
EP19150068.5A
Other languages
German (de)
English (en)
Inventor
Luciano Migliori
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.)
Univer SpA
Original Assignee
Univer SpA
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 Univer SpA filed Critical Univer SpA
Priority to EP19150068.5A priority Critical patent/EP3677382A1/fr
Publication of EP3677382A1 publication Critical patent/EP3677382A1/fr
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the present invention relates to a device for holding or clamping workpieces, in particular for holding or clamping body components in the motor vehicle industry, and a mandrel for a device for holding or clamping workpieces.
  • Such a device can be, for example, a base clamp.
  • a device for clamping workpieces which has the features of the preamble of claim 1.
  • This device is used for clamping workpieces with different clamping strengths of the clamping device, this device allowing the clamping of workpieces of different thicknesses.
  • the device has a mandrel for mounting the workpiece, in particular for positioning or aligning the workpiece with respect to the device. To store the workpiece, the mandrel is typically inserted into receiving holes formed in the workpiece or the workpiece is accordingly inserted into the mandrel.
  • a holding element in the form of a clamping hook is arranged in the mandrel for holding the workpiece, in the present case for clamping the workpiece in a holding position of the holding element.
  • the mandrel has a base body, the base body having a through opening for the holding element.
  • the holding element is movable with respect to the base body between an open position and the holding position and vice versa. The movement of the holding element takes place by means of an actuator. In the holding position, the holding element passes through the through opening of the base body and projects radially outward from the mandrel and engages behind the workpiece on a side facing away from a support structure of the workpiece.
  • Foreign bodies penetrating into the device pose a risk of damage to the device, increased wear of the device and / or increased maintenance, in particular increased cleaning effort, of the device.
  • larger foreign bodies such as can occur during machining on the workpieces, can lead to the function of the device being disturbed, so that a transfer of the holding element from the holding position into the open position is disturbed.
  • a jamming of such foreign bodies in the device can also endanger people or other objects in the vicinity of the device.
  • the object of the present invention is to develop a device for holding or clamping workpieces, which has the features of the preamble of claim 1, in such a way that the susceptibility to malfunction and wear of the device is reduced. Furthermore, it is an object of the present invention to provide a mandrel for a device for holding or clamping workpieces, which enables the device to operate less prone to failure and with less wear.
  • the mandrel has a closing element for closing the through opening, the closing element being movably mounted in the base body. It is further provided that the holding element acts on the closing element when moving from the open position into the holding position, for moving the closing element.
  • open position is understood here to mean that in the open position it is possible to insert the mandrel into the workpiece or to insert the workpiece into the mandrel.
  • the holding position the workpiece is held by the holding element, so that it is not possible to remove the workpiece from the mandrel or to remove the mandrel from the workpiece.
  • the workpiece is clamped against the device in the holding position of the holding element, in particular clamped against a housing of the device.
  • the device it is also entirely conceivable for the device to have a bearing plate, the workpiece being held in a clamping manner between the holding element and the bearing plate in the holding position of the holding element.
  • the through-opening is at least partially closed by the closing element, thereby preventing foreign bodies from penetrating into the inner region of the mandrel or of the base body.
  • a partial area of the holding element is arranged in a housing of the device and another partial area of the holding element is arranged in the base body, the holding element penetrating an opening in the housing of the device and this opening opening into a receiving area of the base body for the holding element.
  • the through-opening is preferably at least partially closed both in the holding position and in the opening position of the holding element by the closing element, as a result of which foreign bodies are prevented from entering the inner region of the mandrel or of the base body in both positions and preferably also in the intermediate positions.
  • the closing element is designed in such a way that the closing element only closes the through opening in the holding position, since the machining steps to be carried out on the workpiece, by which foreign bodies, such as welding dust or chips, arise during the machining steps on the workpiece , typically be made in the holding position of the holding element.
  • the closing element rests on an outer surface of the base body, insofar as the closing element covers the through opening on the outside.
  • the closing element has a closing section which serves to close the through opening, the closing element being mounted in another section in the base body and the closing section being free of contact points with the base body, thus the closing section has no points of contact with the base body, the closing section essentially moving when the closing element is moved under the action of the holding element. Since the closing section has no points of contact with the base body, the movement of the closing section takes place essentially without friction, in particular with respect to the base body, which has an advantageous effect on the service life of the closing element.
  • the mandrel preferably extends in an axial direction, the mandrel, in particular the base body of the mandrel, having a cross section tapering in the direction of a free end of the mandrel.
  • the cross section preferably tapers conically. It is entirely conceivable that the mandrel or the base body has a first section with a constant cross section and a second section adjoining the first section with a tapering cross section.
  • the device is preferably a base clamp.
  • the mandrel preferably forms a separate component, the mandrel being connectable to a housing of the device, in particular in the region of the base body.
  • the mandrel preferably has a fastening section at an end facing away from the free end, the mandrel being connectable to a housing of the device in the region of this fastening section, for example by means of screws.
  • a partial area of the holding element is preferably mounted in the housing of the device, the housing receiving in particular kinematics interacting with the holding element, for example a toggle lever mechanism.
  • the housing can also have an actuator for driving the holding element, in particular an actuator that interacts with the kinematics.
  • the actuator can be connected or connected separately to the housing and one to the holding element or the Kinematics interacting component of the actuator extends into the housing.
  • the actuator can be, for example, a piston rod of a pneumatic cylinder or a hydraulic cylinder or a corresponding component of an electric drive.
  • the element executes an axial movement and a radial movement superimposed on the axial movement during the movement from the open position into the holding position.
  • This movement can be achieved, for example, by means of appropriate kinematics, for example by means of a link guide in which the holding element or a partial area of the holding element is guided.
  • the holding element itself can also have the link guide.
  • the mandrel is used in particular to fix the workpiece or to fix the position of the workpiece in the radial direction of the mandrel, and the holding element in the holding position serves to hold the workpiece in the axial direction of the mandrel.
  • the workpiece is in particular placed on the mandrel in the axial direction of the mandrel or, conversely, the mandrel is inserted into the workpiece in the axial direction of the mandrel, the workpiece facing away from the free end of the mandrel on a counter structure of the device, for example the housing the device or a separate bearing plate of the device comes into contact.
  • the mandrel preferably passes through a receiving opening formed in the workpiece.
  • the holding element is then transferred from the open position to the holding position, the holding element engaging behind the workpiece on a side opposite the side lying against the counter structure.
  • the workpiece is preferably held in a clamped position between the holding element and the counter structure.
  • the holding element In the holding position, the holding element preferably protrudes in a radial direction from the mandrel or base body, which extends in an axial direction.
  • the holding position of the holding element may well depend on the thickness of the workpiece to be held.
  • the holding element is designed in particular as a tensioning hook.
  • the holding element in the open position is set back with respect to the base body extending in the axial direction or is flush with the base body.
  • the closing element is preferably arranged in the open position within the base body, or the top view of the closing element is set back in the axial direction of the mandrel relative to an outer contour of the base body or is flush with this outer contour.
  • This embodiment of the device ensures that the closing element does not hinder an axial pushing on of the workpiece or an axial insertion of the mandrel into the workpiece.
  • the outer contour is preferably circular.
  • the base body has a bearing section adjacent to the through opening, the workpiece to be held being arranged in the region of the bearing section, in particular the bearing section being arranged in the region of a receiving opening of the workpiece.
  • the bearing section preferably has a larger outer contour than the region of the mandrel adjoining in the direction of a free end of the mandrel.
  • the closing element contacts the holding element in the holding position.
  • the closing element is preferably mounted in the axial direction above the holding element in the base body.
  • the closing element is mounted in a free end of the base body or in an end section of the base body.
  • the mandrel has restoring means, the holding element acting on the closing element when moving from the open position into the holding position against the restoring force of the restoring means.
  • This design of the device favors the fact that when the holding element is moved from the holding position into the open position, the closing element is also transferred to an initial position without having to act externally on the closing element.
  • a partial section of the closing element forms the restoring means.
  • the closing element can be formed from an elastic material or at least the section of the closing element forming the restoring means can be formed from an elastic material.
  • the material can be, for example, a metal or a metal alloy with corresponding elastic properties.
  • the separate restoring means can be, for example, separate spring elements or other elastic elements.
  • the closing element has a closing section, the closing section passing through the through opening in the holding position or being arranged outside the base body.
  • the holding element acts on the closing section when moving from the open position into the holding position.
  • the closing element in particular the closing section, has a front wall and at least one, preferably two, side walls adjoining the front wall.
  • the respective side wall adjoining the front wall avoids that in the holding position in which the closing element passes through the through-opening or at least a partial area of the closing section is arranged outside the base body, that foreign bodies or foreign matter through the otherwise clear area between the base body and the front wall get into the area of the through opening and thus into the base body.
  • the front wall and the preferably two side walls arranged thereon shield the through opening on the front side and on two further sides.
  • the front wall preferably has a smaller transverse dimension and / or longitudinal dimension than the through opening.
  • the closing element in particular the closing section, preferably has a further wall, this further wall shielding the opening in a holding position of the holding element in an axial direction.
  • This further wall may well be formed by the front wall, for example in that the front wall in the holding position of the holding element is oriented transversely or at an angle to the axial direction of the mandrel.
  • the front wall and / or the preferably two side walls are preferably designed as flat surfaces.
  • the respective side wall is preferably angled, in particular arranged perpendicular to the front wall.
  • the preferably two side walls are in particular arranged parallel to one another.
  • the respective wall has a closed surface.
  • the walls are preferably plate-shaped.
  • the respective side wall has a cross section which widens in a direction facing away from the free end of the mandrel.
  • the closing element is arranged pivotably in the region of the free end of the mandrel and / or is tiltable while deforming the closing element.
  • a design of the closing element with a front wall and preferably two side walls, which are formed at an angle to the front wall, can be produced in a particularly simple manner by means of a stamping process and subsequent bending process. As a result, the closing element can be manufactured particularly simply and inexpensively.
  • the closing element is pivotably and / or tiltably mounted in the base body while deforming the locking element, preferably in the region of the free end section of the base body or the mandrel.
  • the closing element is fastened in the base body by means of fastening means, the fastening means having an elastic region or an elastic element.
  • the range of elasticity or the elastic element can certainly form the restoring means.
  • the elasticity range or the elastic element enable the closing element to move with as little deformation of the closing element as possible, in particular without any deformation of the closing element. This reduces the mechanical load on the closing element, which has an advantageous effect on the wear and the service life of the closing element.
  • the closing element can be made from a relatively inelastic, rigid or brittle material.
  • the elastic element can be an O-ring, for example.
  • the fastening means can in particular have a pin with an enlarged head section, the pin preferably being axially aligned, the pin passing through the base body and the closing element, with an antidote, for example in the form of a clamping ring, or in the form of a split pin or in the form of a bolt secures the pin on a side facing away from the head section against detachment from the base body. This enables simple fastening of the closing element in the base body.
  • the pin preferably penetrates the base body in an axial direction of the base body.
  • the base body and the pin are arranged coaxially.
  • the head section of the pin is arranged inside the base body, an end of the pin facing away from the head section and the antidote being arranged outside the base body. This facilitates the fastening of the closing element.
  • the pin has a groove for a clamping ring at its end facing away from the head section.
  • the free end of the base body has a recess on its outside for receiving the antidote of the fastening means.
  • the closing element can preferably be inserted into the interior of the base body through the through opening of the base body for the purpose of assembly.
  • a pin with an antidote in particular an antidote designed as a clamping ring
  • the closing element can be connected to the base body in a particularly simple manner, so that simple mounting of the mandrel and simple exchange or retrofitting of a correspondingly designed base body with the Closing element is possible.
  • the locking element can first be placed on the pin.
  • the pin and the closing element are then inserted into the base body through the through opening of the base body.
  • the pin is then inserted into an opening in the base body within the base body, so that the end facing away from the head section protrudes from an outside of the base body and can be secured with the antidote.
  • the pin can only be inserted into the closing element within the base body.
  • the fastening means can also have a screw instead of the pin or in addition to the pin, the screw being screwed into the base body.
  • the pin has the advantage over a screw that, due to the mechanical load on the fastener, seizure, which can occur when using a screw, is avoided.
  • the fastening means have a means with a head section, in particular a pin with a head section, this means penetrating a bearing section of the closing element.
  • the elastic element for example an elastic O-ring, is arranged between the head section and the closing element.
  • an elastic element in particular in the form of an O-ring, is also arranged between the bearing section of the closing element and the base body of the mandrel, in particular in addition to the aforementioned elastic element.
  • the closing element is in particular made in one piece.
  • the closing element is preferably made of metal, a metal alloy, in particular steel.
  • the closing element is, in particular, a curved and / or angled band or a bent and / or angled strip or a bent and / or angled plate.
  • the closing element is in particular a stamped part, preferably a sheet metal stamped part, preferably a stamped part, which is bent or angled after the stamping process.
  • the closing element has a closing section, an infeed section and a bearing section formed between the infeed section and the closing section, the closing element being mounted in the base body in the region of the bearing section.
  • the holding element acts on the infeed section when moving from the holding position into the open position.
  • the closing element is moved back, preferably into its starting position, in particular the closing element is made of a protruding element Position moved back into a position in which the closing element is arranged entirely within the base body.
  • a first side of the holding element contacts the closing section when moving from the open position into the holding position and a side of the holding element opposite the first side contacts the infeed section when moving from the holding position into the open position.
  • the holding element contacts the feed section in the open position of the holding element. This prevents unintentional movement of the closing element. It is entirely conceivable that the feed section between the holding element and an inside of the base body is held clamped in the open position of the holding element.
  • the base body has two through openings, the closing element having two closing sections, the respective closing section each closing one of the through openings in the open position of the holding element.
  • the closing section of the two closing sections which is not acted upon by the holding element when the holding element is moved into the holding position is longer than the other closing section acted upon by the holding element. This can ensure that the other closing section not acted upon always closes the passage opening facing it.
  • the through openings are formed, in particular, with respect to a central axis of the mandrel or to a central axis of the base body.
  • the closing element is designed symmetrically to the central axis of the mandrel or to the central axis of the base body.
  • the device with a base body with two through openings preferably has a single holding element, the holding element passing through one of the two through openings in the holding position, the holding element moving onto the closing element, in particular the closing section assigned to the one through opening, when moving from the open position into the holding position , acts to move the closing element.
  • the device has two holding elements, the respective holding element passing through one of the two through openings in a holding position.
  • the respective holding element thus acts on one of the closing sections of the closing element.
  • the mandrel according to the invention is suitable for a device for holding or clamping workpieces, in particular suitable for a device according to one of claims 1 to 14, wherein the mandrel has a base body, wherein a holding element of the device can be arranged in the base body.
  • the base body has a through opening for the holding element, the mandrel having a closing element for closing the through opening.
  • the closing element can be moved by means of the holding element which can be moved with respect to the base body.
  • the 1 to 18 show a first embodiment of the device 1 for holding or clamping workpieces 11, in particular for holding or clamping body components, the device 1 in the present case being a base clamp.
  • the device 1 has a mandrel 2 for mounting the workpiece 11 in a radial direction of the mandrel 2 and a holding element 3 arranged in the mandrel 2, here in the form of a clamping hook, for holding the workpiece 11 in an axial direction Z of the mandrel 2.
  • the mandrel 2 passes through a bearing opening of the workpiece 11, so that the workpiece 11 is positioned and held with respect to the mandrel 2 perpendicular to the axial direction Z of the mandrel 2, thus in a radial direction of the mandrel 2.
  • the plate-shaped workpiece 11 rests with one side on a bearing plate 12 of the device 1, the holding element 3 holding the workpiece 11 in one position Fig. 16 Stop position shown on one of the opposite side of the workpiece on the bearing plate 12 side 11 engages behind. In the present case, the workpiece 11 is held in a clamped position between the bearing plate 12 and the holding element 3 in the holding position of the holding element 3.
  • the mandrel 2 has a base body 4, the base body 4 having a through opening 5 for the holding element 3, the holding element 3 being movable with respect to the base body 4 between an open position and the holding position and vice versa.
  • the holding element 3 passes through the through opening 5 in the holding position.
  • the holding element 3 does not protrude from the base body 4 in the open position.
  • the mandrel 2 has a closing element 6, in the present case formed in one piece, for closing the through opening 5, the closing element 6 being movably mounted in the base body 4.
  • the closing element 6 is tiltably and pivotably mounted in the base body 4 while deforming the closing element 6.
  • the holding element 3 acts on the closing element 6, for moving the closing element 6.
  • the closing element 6 is pivoted out of the through opening 6.
  • the closing element 6 closes the through opening 5 in an open position of the holding element 3, wherein the holding element 3 does not pass through the through opening 5 of the base body 4 in the open position.
  • the closing element 6 thus reduces the risk of foreign bodies entering the inner region of the base body 4 in the open position of the holding element 3 and possibly penetrating further from there into the interior of the device 1, in particular into a region of a kinematics which interact with the holding element 3 Arrive device 1.
  • the closing element 6 has a closing section 7, the closing section 7 serving to close the through opening 5.
  • the closing section 7 passes through the through opening 5 and is partially arranged outside the base body 4 in the holding position.
  • the closing section 7 is formed by a front wall 8 and two side walls 9, which in the present case are angled at 90 ° to the front wall 8 and adjoin the front wall 8.
  • the walls 8, 9 are plate-shaped and have a closed surface.
  • the through opening 5 is essentially closed by the front wall 8.
  • the closing section 7 is pivoted outward relative to the base body 4, so that the front wall 8 is arranged at a distance from the through opening 5.
  • the front wall 8 lies in the holding position of the holding element 3 on one side of the holding element 3 which projects radially with respect to the base body 4.
  • the side walls 9 extend from the front wall 8 spaced apart from the through opening 5 in the direction of the through opening 5, the side walls 9 in the holding position of the holding element 3 extending into the through opening 5 in the present embodiment of the device 1 extend into it.
  • the side walls 9 prevent foreign matter or foreign bodies from passing through the otherwise clear opening between the front wall 8 and the through opening 5 or between the Front wall 8 and the base body 4 get into the through opening 5 and from there into the interior of the base body 4.
  • the closing element 6 is fastened in the base body 4 by means of fastening means 19, 20, 21, the fastening means 19, 20, 21 having two elastic elements 19 in the form of O-rings.
  • the fastening means 19, 20, 21 have a pin 20 with a head section 28, the pin 20 being aligned in the axial direction Z of the mandrel 2 and passing through a free end section 15 of the base body 4 in the axial direction Z.
  • the end section 15 has an axial opening 30, the pin 20 passing through the opening 30.
  • the pin 20 passes through a bearing section 22 of the closing element 6, the bearing section 22 being arranged between the head section 28 of the pin 20 and an inside of the base body 4 in the region of the end section 15 of the base body 4.
  • the pin 20 penetrates the two O-rings, one O-ring being arranged between the bearing section 22 and the head section 28 of the pin 20 and the other O-ring being arranged between the bearing section 22 and the inside of the end section 15 of the base body 4 is.
  • the end of the pin 20 opposite the head section 28 is led out of the base body 4 in the region of a conically tapering tip of the end section 15 and the clamping ring 21 is arranged in a groove in the pin 20 formed at this end of the pin 20.
  • the end section 15 of the base body 4 has a recess formed in the axial direction in the region of the tip, the clamping ring 21 being arranged in this recess.
  • the two O-rings allow the closing element 6 to pivot and prevent an excessive inclination and thus an undesirably large deformation of the closing element 6 when the holding element 3 acts.
  • the closing element 6 is moved when the holding element 3 acts on the closing element 6 when the holding element 3 is moved from the open position into the holding position against a restoring force of the O-rings.
  • the closing element 6 also has an infeed section 10, the bearing section 22 being formed between the closing section 7 and the infeed section 10, a curved partial section 17 of the closing element 6 connecting the bearing section 22 to the closing section 7.
  • the holding element 3 acts on the infeed section 10.
  • the closing element 6 is pivoted back from the position which the closing element 6 occupies in the holding position of the holding element 3 into that in FIG Fig. 1 shown starting position.
  • a first side of the holding element 3 contacts the closing section 7, specifically an inside of the front wall 8, and a side of the holding element 3 opposite the first side makes contact when moving from the holding position into the Open position the delivery section 10 11 and 12 can be seen, the holding element 3 contacts the feed section 10 in the open position of the holding element 3.
  • the closing element 6 is arranged entirely within the base body 4, accordingly the closing element 6 is a top view in an axial direction Z of the mandrel 2 with respect to an outer contour 29 of the base body 4, in the present case an outer contour 29 of a bearing section 18 of the base body 4 reset, such as the Fig. 11 can be seen.
  • the holding element 3 executes an axial movement and a radial movement superimposed on the axial movement during the movement from the open position into the holding position.
  • the holding element 3 pivots axially in the direction of a housing 14 of the device 1 and radially outward with respect to the mandrel 4.
  • a partial region of the holding element 3 arranged in the housing 14 has two link guides in the form of two elongated holes 25, the respective elongated hole 25 being mounted in a bearing pin 26 which is fixedly connected to the housing 14.
  • the holding element 3 is connected via a toggle lever mechanism 23 to an actuator 24, specifically to a piston rod of a pneumatic drive, for the purpose of transferring the holding element 3 from the open position into the holding position and vice versa.
  • the mandrel 2 is connected to the housing 14 of the device 1, the mandrel 2 being arranged within a bearing body 13, the bearing body 13 also receiving the bearing plate 12, the mandrel 4 passing through both the bearing body 13 and the bearing plate 12.
  • the bearing body 13 is connected to the housing 14 by means of fastening means 27 in the form of screws.
  • the closure element 6 is formed in one piece, the closure element 6 being a stamped part, the sections 7, 22, 10 and the side walls 9 being formed by bending after the stamping. Furthermore, the bearing section 22 was provided with a through opening for the pin 20.
  • the side walls 9 are designed such that they have a cross section widening in the direction of the bearing plate 12. This ensures that the passage opening 5 is covered as well as possible in the holding position of the holding element 3 while using as little material as possible.
  • the closure element 6 can be inserted from the outside through the through opening 5 of the base body 4 into the interior of the base body 4 for the purpose of connection to the base body 4.
  • the illustrated embodiment of the device 1 differs from the first embodiment of the device 1 essentially in that the base body 4 has two opposite through openings 5 and the closing element 6 has two opposite closing sections 7.
  • the through openings 5 are formed opposite one another with respect to a central axis 16 of the mandrel 2 or to a central axis 16 of the base body 4 and the closing element 6 is essentially symmetrical to the central axis 16 of the mandrel 2 or to the central axis 16 of the base body 4, wherein the side walls 9 of the one closing section 7 of the closing sections 7 have a smaller dimension than the side walls 9 of the other closing section 7 of the closing sections 7, as can be seen in particular in FIG Fig. 25 can be removed.
  • the bearing section 22 is formed between the two closing sections 7.
  • the respective closing section 7 serves to close the through opening 5 assigned to this closing section 7.
  • the device 1 has only a single holding element 3. Accordingly, only one of the two through openings 5 is penetrated by the holding element 3 in the holding position. In principle, however, it is conceivable that the device 1 has two holding elements 3, wherein in the holding position one holding element 3 of the two holding elements 3 passes through one through opening 5 and the other holding element 3 of the two holding elements 3 passes through the other through opening 5.
EP19150068.5A 2019-01-02 2019-01-02 Dispositif de maintien ou de serrage des pièces ainsi que mandrin pour un dispositif de maintien ou de serrage Withdrawn EP3677382A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19150068.5A EP3677382A1 (fr) 2019-01-02 2019-01-02 Dispositif de maintien ou de serrage des pièces ainsi que mandrin pour un dispositif de maintien ou de serrage

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Application Number Priority Date Filing Date Title
EP19150068.5A EP3677382A1 (fr) 2019-01-02 2019-01-02 Dispositif de maintien ou de serrage des pièces ainsi que mandrin pour un dispositif de maintien ou de serrage

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EP3677382A1 true EP3677382A1 (fr) 2020-07-08

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EP19150068.5A Withdrawn EP3677382A1 (fr) 2019-01-02 2019-01-02 Dispositif de maintien ou de serrage des pièces ainsi que mandrin pour un dispositif de maintien ou de serrage

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1391266A2 (fr) * 2002-08-23 2004-02-25 DE-STA-CO Metallerzeugnisse GmbH Dispositif de serrage et de centrage
EP1393861A2 (fr) * 2002-09-02 2004-03-03 Luciano Migliori Dispositif de serrage pour pièce à travailler avec élément racloir
EP1702721A1 (fr) * 2005-03-17 2006-09-20 UNIVER S.p.A. Dispositif de serrage et de centrage avec patte de serrage en forme de crochet
EP3061568A1 (fr) 2015-02-26 2016-08-31 UNIVER S.p.A. Dispositif de serrage pour des pièces de différentes épaisseurs

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1391266A2 (fr) * 2002-08-23 2004-02-25 DE-STA-CO Metallerzeugnisse GmbH Dispositif de serrage et de centrage
EP1393861A2 (fr) * 2002-09-02 2004-03-03 Luciano Migliori Dispositif de serrage pour pièce à travailler avec élément racloir
EP1702721A1 (fr) * 2005-03-17 2006-09-20 UNIVER S.p.A. Dispositif de serrage et de centrage avec patte de serrage en forme de crochet
EP3061568A1 (fr) 2015-02-26 2016-08-31 UNIVER S.p.A. Dispositif de serrage pour des pièces de différentes épaisseurs

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