EP3815845B1 - Dispositif de serrage permettant de serrer une pièce - Google Patents

Dispositif de serrage permettant de serrer une pièce Download PDF

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Publication number
EP3815845B1
EP3815845B1 EP20205131.4A EP20205131A EP3815845B1 EP 3815845 B1 EP3815845 B1 EP 3815845B1 EP 20205131 A EP20205131 A EP 20205131A EP 3815845 B1 EP3815845 B1 EP 3815845B1
Authority
EP
European Patent Office
Prior art keywords
clamping
clamping device
clamping arm
housing
working position
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.)
Active
Application number
EP20205131.4A
Other languages
German (de)
English (en)
Other versions
EP3815845A1 (fr
Inventor
Peter Steinbach
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.)
Andreas Maier GmbH and Co KG
Original Assignee
Andreas Maier 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 Andreas Maier GmbH and Co KG filed Critical Andreas Maier GmbH and Co KG
Publication of EP3815845A1 publication Critical patent/EP3815845A1/fr
Application granted granted Critical
Publication of EP3815845B1 publication Critical patent/EP3815845B1/fr
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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
    • B25B5/10—Arrangements for positively actuating jaws using screws
    • B25B5/104—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element
    • B25B5/108—Arrangements for positively actuating jaws using screws with one screw and one clamping lever and one fulcrum element the screw contacting one of the ends of the lever
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B25B1/2457—Construction of the jaws with auxiliary attachments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2494—Means indicating the distance between jaws or their angular position
    • 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
    • B25B5/006—Supporting devices for clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/16—Details, e.g. jaws, jaw attachments
    • B25B5/163—Jaws or jaw attachments

Definitions

  • the DE 85 15 633 U1 discloses a tensioning device according to the preamble of claim 1 and according to the preamble of claim 2.
  • the present invention is based on the object of creating a clamping device of the type mentioned above, in which attachment of the clamping device to a surface can be carried out particularly simply and easily.
  • the fastener is arranged in the fastener receptacle of the clamping device when the actuating tool engages the fastener and extends through the recess of the clamping arm or laterally past the bent region of the clamping arm to the fastener.
  • the clamping arm can be pivoted relative to the housing between a first working position and a second working position and the offset is designed such that the actuating tool is in both the first working position and the second Working position can extend laterally past the bent area of the clamping arm up to the fastening means.
  • the clamping arm In the second working position, the clamping arm is pivoted relative to the housing of the clamping device by an angle of preferably at least 30°, in particular at least 40°, particularly preferably at least 60°, relative to the first working position.
  • the offset is designed in such a way that the actuating tool can extend laterally past the offset area of the clamping arm relative to the housing to the fastening means in any position of the clamping arm lying between the first working position and the second working position.
  • the at least two recesses can in particular be designed as a passage opening in the clamping arm.
  • Such a passage opening preferably extends through the clamping arm from an upper side of the clamping arm facing away from the fastener receptacle to an underside of the clamping arm facing the fastener receptacle.
  • the recess can in particular be designed as an elongated hole in order to enable the actuating tool to extend in a variety of working positions through the recess designed as an elongated hole to the fastening means.
  • the clamping arm has at least a first recess and a second recess and can be pivoted relative to the housing between a first working position and a second working position, the first recess being designed such that Actuating tool can extend in the first working position through the first recess to the fastening means and the second recess is designed such that the actuating tool can extend in the second working position through the second recess to the fastening means.
  • the clamping arm has more than two recesses through which the actuating tool can extend to the fastening means when the clamping arm is in different working positions.
  • At least two of the recesses in the clamping arm can be designed so that they open into a common mouth opening on the underside of the clamping arm facing the fastener receptacle.
  • the clamping device comprises at least one working position scale, which is arranged on the housing or on a component of the clamping device connected in a rotationally fixed manner to the housing, and one Index marking, which is arranged on the clamping arm or on a component of the clamping device connected in a rotationally fixed manner to the clamping arm, with a predetermined positioning of the index marking relative to the working position scale being assigned to several working positions of the clamping arm relative to the housing.
  • the working position scale includes a plurality of working position markings, to which different working positions of the clamping arm are assigned relative to the housing.
  • the clamping arm is provided with a pressure piece and the heights H of the pressure piece in relation to a support surface of the housing of the clamping device, which the pressure piece assumes in the various working positions to which the working position markings are assigned, form an essentially equidistant sequence.
  • One of the working position markings of the working position scale can be an upper end position marking, which is assigned to the working position in which the height H o of the pressure piece is maximum in relation to the support surface of the housing.
  • one of the working position markings can be a lower end position marking, which is assigned to the working position in which the height H u of the pressure piece is minimal in relation to the support surface of the housing.
  • At least one working position scale is provided on two different sides of the housing of the clamping device, so that the positioning of the clamping arm relative to the housing of the clamping device can be easily read from two opposite sides of the clamping device.
  • At least one of the working position scales is arranged on an outer edge of the housing.
  • At least one of the working position scales is arranged on an inner edge of the housing, which lies opposite an edge of a bearing section of the clamping arm.
  • the clamping arm is preferably mounted on a boundary wall of the housing of the clamping device so that it can pivot about a pivot axis of the clamping arm.
  • the clamping arm is preferably provided with a pressure piece, which comprises a pressure piece base body and a pressure piece insert releasably connected to the pressure piece base body.
  • the pressure piece base body is preferably held captively on the clamping arm.
  • the pressure piece insert is preferably connected to the pressure piece base body so that it can be exchanged for another pressure piece insert.
  • the pressure piece insert can have a substantially flat clamping surface with which the pressure piece can be placed on a workpiece to be clamped.
  • the pressure piece insert can comprise a clamping surface which is provided with one or more grooves in order to produce a corrugation or profiling of the clamping surface.
  • the pressure piece insert has a recess with which the workpiece can come into engagement when the workpiece is clamped.
  • Such a recess can extend, for example, in a longitudinal direction or in a transverse direction of the clamping device.
  • the recess can have a cross section - taken perpendicular to its longitudinal direction - which is preferably triangular or trapezoidal.
  • the pressure piece insert is detachably connected to the pressure piece base body by means of a magnetic element.
  • the magnetic element preferably comprises a permanent magnet.
  • the magnetic element can be arranged on the pressure piece base body or on the pressure piece insert.
  • the pressure piece base body is preferably provided with a projection, the underside of which, which faces away from a pressure piece pivot axis of the clamping device, can serve as a clamping surface for a workpiece to be clamped by means of the clamping device if no pressure piece insert is arranged on the pressure piece base body.
  • the pressure piece insert can have a recess into which the projection of the pressure piece base body engages when the pressure piece insert is arranged on the pressure piece base body.
  • the recess is preferably designed to be complementary to the projection, so that the projection and the recess together form a positive connection, through which a displacement of the pressure piece insert relative to the pressure piece base body in a direction parallel to the underside of the pressure piece base body is prevented.
  • the tensioning device according to the invention is particularly suitable for use in a combination of a tensioning device according to the invention and an actuating tool for actuating a fastening means for attaching the tensioning device to a surface.
  • the actuation tool can have a substantially rectilinear tool section which extends from the recess or from the bent region of the clamping arm to the fastening means when the actuation tool is used to actuate the fastening means.
  • the actuating tool is designed as an Allen key.
  • the fastening means preferably comprises a hexagon socket screw.
  • the clamping device comprises a decoupling device, by means of which the thread of the clamping screw can be brought out of engagement with the engagement section of the clamping arm, so that the clamping arm can be pivoted relative to the housing of the clamping device between a first working position and a second working position, regardless of a rotation of the clamping screw.
  • Such a decoupling device can in particular comprise a guide element which receives a guide section of the clamping screw and is movable, in particular displaceable, between an engagement position in which the clamping screw is in engagement with the clamping arm and a release position in which the clamping screw is out of engagement with the clamping arm , is.
  • the decoupling device can in particular comprise a biasing device which biases the guide element into the engaged position.
  • the decoupling device can comprise a latching device, by means of which the guide element can be latched in the engaged position and/or in the release position - preferably on the housing of the clamping device.
  • the latching device can comprise at least one latching part that is between a latching position in which the latching part locks the guide element in the engagement position and/or in the release position, and an unlocking position in which the latching part allows a movement of the guide element from the engagement position into the release position and/or or releases from the release position into the engaged position, is movable.
  • the latching device can comprise a spring element which biases the at least one latching part into the latching position.
  • the latching device comprises two latching parts which protrude from the housing of the clamping device in opposite directions.
  • the latching part or at least one of the latching parts can be provided with an actuating element on which an operator can act in order to move the latching part into the unlocking position.
  • the latching part or at least one of the latching parts is preferably guided displaceably in a guide channel of the guide element.
  • the clamping screw preferably comprises an actuating end part on which a screwing tool can engage in order to rotate the clamping screw about its longitudinal axis.
  • the actuating end part can in particular be designed as a clamping screw head.
  • the actuating end part can have a polygonal cross section, in particular a hexagonal cross section, taken perpendicular to the longitudinal axis of the clamping screw.
  • the actuating end part is provided with a recess with a polygonal cross section, in particular with a hexagonal cross section.
  • the clamping screw can have a bearing end part, by means of which the clamping screw is pivotally mounted relative to the housing - preferably on the housing.
  • the bearing end part can have a sectionally spherical bearing section which is arranged on a sectionally complementary bearing receptacle of the housing of the clamping device.
  • the tensioning arm is preferably pivotable relative to the housing of the tensioning device through an angle of at least 30°, in particular of at least 45°, particularly preferably of at least 60°, when the thread of the tensioning screw is out of engagement with the engagement portion of the tensioning arm.
  • the clamping device can comprise at least one chip protection element which at least partially covers a gap between two opposing inner walls of the housing of the clamping device.
  • the clamping device can comprise an upper chip protection element, which is arranged on a side of the clamping arm facing away from the support surface of the clamping device, and/or a lower chip protection element, which is arranged on a side of the clamping arm facing the support surface of the clamping device.
  • At least one chip protection element has an edge section that rests on the clamping arm or is separated from the clamping arm by less than 2 mm, in particular by less than 1 mm, is spaced apart.
  • the clamping device 100 shown is used to clamp a workpiece 102 on a clamping surface 104, which can be designed, for example, coplanar with a support surface 106 of a housing 108 of the clamping device 100, but also offset up or down relative to this support surface 106 and / or inclined relative to the support surface 106 can be.
  • the housing 108 is preferably designed in two parts and comprises a first housing part 110a and a second housing part 110b, which preferably rest against one another in a contact plane 112, which is parallel to a longitudinal direction 114 of the clamping device 100 and perpendicular to a transverse direction 116 of the clamping device 100 is aligned.
  • the longitudinal direction 114 and/or the transverse direction 116 are preferably aligned parallel to the support surface 106 of the housing 108.
  • a height direction 118 of the clamping device 100 is aligned perpendicular to the longitudinal direction 114 and perpendicular to the transverse direction 116 and thus also perpendicular to the support surface 106 of the housing 108 of the clamping device 100.
  • the two housing parts 110a and 110b are secured to one another - preferably releasably - by means of one or more, for example three, fastening elements 120.
  • the fastening elements 120 can, for example, each be designed as a screw, which passes through a passage opening in one housing part, for example in the second housing part 110b, and with its thread (not shown) into a complementary internal thread on the other housing part, for example on the first Housing part 110a is screwed in.
  • the housing 108 is provided on its front edge 122 with a - for example essentially U-shaped - fastener receptacle 124, which serves to receive a fastener for fastening the clamping device 100 to a surface 126.
  • Such a fastening means 128 can, for example, include a fastening screw 130 and a T-slot piece 132, the fastening screw 130 being screwed with its external thread into a complementary internal thread of the T-slot piece 132 (see the Fig. 17 to 22 ).
  • the base 126 to which the clamping device can be attached by means of the fastening means 128, can be designed, for example, as a machine table, as a workpiece pallet or as a base element, onto which the clamping device 100 is placed in order to raise the support surface 106 by the height of the base element Clamping surface 104 to be spaced apart.
  • the clamping device 100 further comprises a clamping arm 136 which is pivotally held on the housing 108 about a pivot axis 134.
  • the pivot axis 134 of the clamping arm 136 is aligned parallel to the transverse direction 116 of the clamping device 100.
  • the clamping arm 136 comprises a clamping section 138, which extends through an outlet opening 140 bordered by the housing parts 110a and 110b on the front of the housing 108 into an outer space 142 of the housing 108.
  • a pressure piece 146 is arranged, which serves to transmit a clamping force from the clamping device to the workpiece 102 to be clamped.
  • the pressure piece 146 is preferably pivotally articulated on the tension arm 136 about a pressure piece pivot axis 148 relative to the free end region 144 of the clamping arm 136.
  • the pressure piece 146 can be formed in one piece.
  • the pressure piece 146 preferably comprises a pressure piece base body 150, which is connected to the clamping arm 136, and a pressure piece insert 152 which is detachably connected to the pressure piece base body 150 (see Fig. 1 ).
  • the pressure piece insert 152 is preferably connected to the pressure piece base body 150 by positive locking.
  • the pressure piece insert 152 is detachably secured to the pressure piece base body 150 by means of a tongue-and-groove connection.
  • the pressure piece insert 152 is releasably connected to the pressure piece base body 150 by means of a magnetic element 310 .
  • Such a variant of the pressure piece 146 is in the Fig. 56 to 60 shown.
  • the pressure piece base body 150 preferably has a projection 312 on its underside facing away from the pressure piece pivot axis 148, the underside 314 of which can serve as a clamping surface 290 for clamping a workpiece 102 by means of the clamping device 100 when there is no pressure piece insert 152 'on the pressure piece base body 150 is arranged.
  • the clamping surface 290 can be essentially flat and rest against the workpiece 102 when the clamping device 100 is used to clamp a workpiece 102.
  • the pressure piece insert 152 ' preferably has a recess 316 into which the projection 312 of the pressure piece base body 150 engages when the pressure piece insert 152' is arranged on the pressure piece base body 150.
  • the recess 316 is preferably designed to be complementary to the projection 312, so that the pressure piece insert 152 'is secured against displacement relative to the pressure piece base body 150 in directions parallel to the underside 314 of the projection 312 when the pressure piece insert 152 'is arranged on the pressure piece base body 150.
  • the magnetic element 310 which creates a non-positive connection between the pressure piece insert 152 'and the pressure piece base body 150, is arranged on the pressure piece insert 152' in the embodiment shown in the drawing.
  • the magnetic element 310 is arranged on the pressure piece base body 150; In this case, it is not necessary to provide the pressure piece inserts 152 'with a magnetic element 310.
  • the first pressure piece insert 152b ' is provided with one or more grooves 292 on the clamping surface 290 facing away from the pressure piece base body 150 in the assembled state of the pressure piece insert 152b', through which the clamping surface 290 is profiled, so that the pressure piece insert 152b 'can dig into the workpiece 102 to be clamped with its clamping surface 290 in order to increase the adhesion between the pressure piece 146 and the workpiece 102 to be clamped.
  • the grooves 292 can run parallel to the transverse direction 116 of the clamping device 100 (and thus parallel to the pressure piece pivot axis 148) or run parallel to the longitudinal direction 114 of the clamping device 100 or run in any other direction.
  • a recess 294 is provided on the clamping surface 290 facing away from the pressure piece base body 150 in the assembled state of the pressure piece insert 152c', which recess extends in the transverse direction 116 of the clamping device 100 and preferably has a trapezoidal shape perpendicular thereto has a triangular cross section.
  • Clamping surface 290 is provided with a recess 294 ', which extends parallel to the longitudinal direction 114 of the clamping device 100 and preferably has a trapezoidal or triangular cross section perpendicular to this direction.
  • FIG. 56 to 60 illustrated variant of the first embodiment of a clamping device in terms of structure, method of manufacture and function with that in the Fig. 1 to 22
  • the basic version of the first embodiment shown corresponds, to the above and following descriptions reference is made in this respect.
  • the clamping device 100 includes a working position scale 154, which is arranged on the housing 108 of the clamping device 100, and an index marking 156 which interacts with the working position scale 154 and which is arranged on the clamping arm 136.
  • the index mark 156 preferably extends in a direction directed radially to the pivot axis 134 of the clamping arm 136.
  • the index marking 156 can be designed, for example, as a depression or as an elevation on the clamping arm 136.
  • the index marking 156 stands out from the area of the clamping arm 136 surrounding it due to its color and/or its brightness.
  • the working position scale 154 preferably includes a plurality of working position markings 158, which are assigned to different working positions of the clamping arm 136 relative to the housing 108 of the clamping device 100, the clamping arm 136 being rotated in these different working positions by different angles relative to the housing 108 about the pivot axis 134.
  • the working position scale 154 includes, for example, five such working position markings 158; Alternatively, it can also be provided that the working position scale 154 only includes one, two, three, four or more than five working position markings 158.
  • the working position markings 158 preferably extend in a direction directed radially to the pivot axis 134.
  • the working position markings 158 can in particular be designed as elevations or recesses on the housing 108.
  • the working position markings 158 may stand out from the area of the housing 108 adjacent to the working position markings 158 due to their color and/or their brightness.
  • two working position scales 154 are provided, one of the working position scales 154 being arranged on the first housing part 110a and a second working position scale 154 being arranged on the second housing part 110b. Accordingly, two index markings 156 are also provided on the clamping arm 136, with a first index marking 156a being arranged on the side of the clamping arm 136 facing the first working position scale 154a and the second index marking being arranged on the side of the clamping arm 136 facing the second working position scale 154.
  • one of the working position markings 158 of the working position scale 154 is an upper end position marking 160a, which is assigned to the working position of the clamping arm 136, in which the height H o of the pressure piece pivot axis 148 with respect to the support surface 106 of the housing 108 of the clamping device 100 is maximum.
  • one of the working position markings 158 of the working position scale 154 is preferably a lower end position marking 160b, which is assigned to the working position of the clamping arm 136, in which the height H u of the pressure piece pivot axis 148 with respect to the support surface 106 of the housing 108 is minimal.
  • the intermediate position markings 162a, 162b and 162c of the working position scale 154 lying between the upper end position marking 160a and the lower end position marking 160b are preferably so on
  • Housing 108 arranged so that the heights H 1 , H 2 , H 3 and H u of the pressure piece pivot axis 148 with respect to the support surface 106 of the housing 108 of the clamping device 100, which the pressure piece pivot axis 148 in the various intermediate positions of the clamping arm 136, to which the intermediate position markings 162a, 162b and 162c are assigned, or respectively in the lower end position of the clamping arm 136, which is assigned to the lower end position marking 160b, each occupies, form a substantially equidistant sequence.
  • the intermediate position markings 162a, 162b and 162c are therefore preferably arranged relative to the upper end position marking 160a and the lower end position marking 160b such that the height H 1 , which the pressure piece pivot axis 148 occupies in the first intermediate position assigned to the first intermediate position marking 162a, is ⁇ H lower is the height H o which the pressure piece pivot axis 148 occupies in the upper end position of the clamping arm 136.
  • the height H 2 which the pressure piece pivot axis 148 occupies in the second intermediate position assigned to the second intermediate position marking 162b, is smaller by ⁇ H than the height H 1 .
  • the height H 3 which the pressure piece pivot axis 148 occupies in the third intermediate position assigned to the third intermediate position marking 162c, is smaller by ⁇ H than the height H 2 .
  • the height H u which the pressure piece pivot axis 148 occupies in the lower end position, is smaller by ⁇ H than the height H 3 .
  • ⁇ H H O ⁇ H u / 4 .
  • ⁇ H (H o - H u ) / (n + 1).
  • the angle of rotation with respect to the pivot axis 134 of the clamping arm 136, by which the positions of immediately successive working position markings 158 of the working position scale 154 differ from one another, is therefore not constant, but decreases from the upper end position marking 160a to the lower end position marking 160b.
  • the working position scale 154 is arranged on an outer edge 164 of the housing 108 of the clamping device, and the working position markings 158 are each designed as recesses, in particular as notches, on the relevant outer edge 164.
  • the clamping device 100 includes a movement device designated as a whole by 166, which includes a clamping screw 168 which is rotatably mounted about a longitudinal axis 170 of the clamping screw 168 (see Fig. 7 ).
  • the clamping screw 168 has a thread 172 which is in the in Fig. 7 working condition shown and in the in Fig. 16 illustrated working state of the clamping device 100 in engagement with a gear ring segment 174 stands, which is formed on an engagement section 176 of the clamping arm 136.
  • the engagement section 176 of the clamping arm 136 is arranged on the side of the pivot axis 134 of the clamping arm 136 facing away from the free end region 144 of the clamping arm 136.
  • the clamping screw 168 further comprises a bearing end part 178, by means of which the clamping screw 168 is pivotally mounted relative to the housing 108.
  • the bearing end part 178 is releasably secured to an end region 184 of a shaft 186 of the clamping screw 168 by means of a fastening screw 182.
  • the thread 172 of the clamping screw 168 is formed on the shaft 186 of the clamping screw 168.
  • An annular stop 187 is arranged between the thread 172 and the bearing end part 178, which prevents the clamping screw 168 from moving downward along its longitudinal axis 170 when it is not in engagement with the engagement portion 176 of the clamping arm 136.
  • the bearing end part 178 comprises a bearing section 180, which has an outer contour that is partially spherical.
  • the partially spherical bearing section 180 of the clamping screw 168 is arranged in a partially complementary bearing receptacle 188 of the housing 108 of the clamping device 100, so that the clamping screw 168 is located along the partially spherical contact surface between the bearing section 180 of the bearing end part 178 on the one hand and the bearing receptacle 188 on the other hand from the in Fig. 7
  • the working position shown in Fig. 15 Release position shown can be pivoted.
  • the longitudinal axis 170 of the clamping screw 168 is preferably aligned essentially perpendicular to the support surface 106 of the housing 108 of the clamping device 100.
  • an actuating end part 190 is formed, on which an operator can attack by hand or using a tool in order to rotate the clamping screw 168 about its longitudinal axis 170 and thereby move the clamping arm 136 into the desired working position move.
  • the actuating end part 190 can in particular be designed as a clamping screw head.
  • the actuating end part 190 preferably has a polygonal cross section - taken perpendicular to the longitudinal axis 170 of the clamping screw 168 - for example a hexagonal cross section.
  • a guide section 192 of the clamping screw 168 lying between the actuating end part 190 and the thread 172 of the clamping screw 168 passes through a guide opening 194 in a guide element 196 of the clamping device 100.
  • the guide element 196 is slidably guided on the housing 108 of the clamping device 100 so that it can be moved from one to the other Fig. 7 and 15 illustrated engagement position, in which the clamping screw 168 is in engagement with the clamping arm 136, into an in Fig. 15 Release position shown, in which the clamping screw 168 is out of engagement with the clamping arm 136, and can be moved from the release position back into the engaged position.
  • the tensioning device 100 further comprises a pretensioning device 198, which pushes the guide element 196 into the Fig. 7 and 16 shown engagement position biased.
  • the biasing device 198 can in particular comprise a biasing spring 200, which is fixed to the housing 108 of the tensioning device 100 at a housing-side end region 202 and to the guide element 196 at a guide-element-side end region 204.
  • the guide element 196 and the pretensioning device 198 form components of a decoupling device 206 of the clamping device 100, by means of which the thread 172 of the clamping screw 168 can be brought out of engagement with the engagement section 176 of the clamping arm 136.
  • This decoupling device 206 further comprises a latching device 208, by means of which the guide element 196 can be latched relative to the housing 108 in the engaged position and in the release position.
  • the latching device 208 includes two latching parts 210, which are located between one in the Fig. 8 and 14 shown locking position, in which the locking parts 210 lock the guide element 196 in the engaged position or in the release position and one in the Fig. 9 and 10 shown unlocking position, in which the locking parts 210 release a movement of the guide element 196 from the engagement position into the release position or from the release position into the engagement position, are movable.
  • the movement of the locking parts 210 from the locking position into the unlocking position or from the unlocking position into the locking position preferably takes place along the transverse direction 116 of the clamping device 100.
  • Both locking parts 210 are preferably guided displaceably in a guide channel 212 of the guide element 196, the guide channel 212 preferably extending through the guide element 196 in the transverse direction 116 of the clamping device 100.
  • the latching device 208 further comprises a spring element 214, which biases the two latching parts 210 into the latching position.
  • the spring element 214 can be designed, for example, as a coil spring.
  • the end regions of the spring element 214 facing away from one another can each be accommodated in a spring element receptacle 216 of one of the latching parts 210.
  • the two locking parts 210 protrude from the housing 108 of the clamping device 100 in opposite directions 218a and 218b, which are both aligned parallel to the transverse direction 116.
  • Each of the latching parts 210 is provided at its end facing away from the other latching part 210 with an actuating element 220, which an operator can act on in order to move the respective latching part 210 into the unlocking position.
  • Each of the actuation elements 220 can be designed as an actuation button.
  • the procedure is as follows: Starting from the in the Fig. 7 and 8th illustrated working position of the clamping device 100, in which the engagement section 176 of the clamping arm 136 is in engagement with the thread 172 of the clamping screw 168 and the clamping arm 136 is, for example, in its upper end position, the guide element 196 is in the engaged position and the latching parts 210 of the latching device 208 are in the locking position, the locking parts 210 of the locking device 208 are in the in Fig. 9
  • the unlocking position shown is transferred by an operator engaging the actuating elements 220 of the locking parts 210 and moving them towards one another along the transverse direction 116 of the clamping device 100.
  • the release position shown occurs in that the operator acting on the actuating elements 220 moves the latching parts 210 in the longitudinal direction 114 of the clamping device 100 from the front of the housing 108, at which the clamping arm 136 emerges from the housing 108, to the rear, to the rear of the housing 108 there, postponed.
  • the latching parts 210 are moved apart by the spring element 214 in the directions 218a, 218b, so that they reach their position in the Fig. 13 and 14 assume the locking position shown, in which the locking parts 210 lock the guide element 196 in the release position.
  • Fig. 15 As can be seen, in this state of the clamping device 100, the engagement section 176 of the clamping arm 136 is out of engagement with the thread 172 of the clamping screw 168, so that the clamping arm 136 is independent of a rotation of the clamping screw 168 relative to the housing 108 of the clamping device 100 from a first Working position, for example the upper end position of the clamping arm 136, can be pivoted into any second working position, for example into the lower end position of the clamping arm 136.
  • a first Working position for example the upper end position of the clamping arm 136
  • This quick adjustment of the clamping arm 136 saves a lot of setting time that would otherwise have to be used to move the clamping arm 136 into the working position by turning the clamping screw 168 about its longitudinal axis 170 from the first working position, for example the upper end position of the clamping arm 136, to the second Working position, for example the lower end position of the clamping arm 136, to move.
  • the guide element 196 is transferred from the release position back into the engagement position by an operator moving the latching parts 210 against the elastic restoring force of the spring element 214 from the latching position, in which the latching parts 210 lock the guide element 196 in its release position, into the unlocking position, in which the latching parts 210 enable movement of the guide element 196 from the release position into the engagement position.
  • the guide element 196 which has been released from the locking position in the release position, is moved by the biasing device 198, in particular the biasing spring 200, from the release position into the engagement position, in which the thread 172 of the tension screw 168 is again in engagement with the engagement section 176 of the tension arm 136.
  • the latching parts 210 are moved by the spring element 214 along the directions 218a and 218b from the unlocking position into the latched position, so that the guide element 196 is locked in the engaged position and secured against moving back into the release position.
  • the clamping device 100 comprises an upper chip protection element 222 and a lower chip protection element 224, these chip protection elements 222, 224 each at least partially covering a gap between two opposing inner walls 226a, 226b of the housing 108 of the clamping device 100, so that an interior space 228 of the housing 108, in which the engagement section 176 of the clamping arm 136 and the thread 172 of the clamping screw 168 are arranged, is protected by the chip protection elements 222, 224 against the ingress of chips and / or other contaminants from the outer space 142 of the housing 108.
  • the upper chip protection element 222 is fixed to a ceiling wall 230 of the housing 108 and extends both in Fig. 7 shown upper end position of the clamping arm 136 as well as in the in Fig. 16 shown lower end position of the clamping arm 136 up to an upper peripheral surface 232 of the clamping arm 136 or at least up to the vicinity of this upper peripheral surface 232.
  • An edge section 234 of the upper chip protection element 222 facing the clamping arm 136 preferably rests on the upper peripheral surface 232 of the clamping arm 136 or is spaced from the upper peripheral surface 232 of the clamping arm 136 by less than 2 mm, in particular by less than 1 mm.
  • the lower chip protection element 224 is fixed to a bottom wall 236 of the housing 108 and extends to a lower peripheral surface 238 of the clamping arm 136 or at least to the vicinity of the lower peripheral surface 238.
  • an edge section 240 of the lower chip protection element 224 facing the clamping arm 136 rests on the lower peripheral surface 238 of the clamping arm 136 or is spaced from the lower peripheral surface 238 of the clamping arm 136 by less than 2 mm, in particular by less than 1 mm.
  • Each of the chip protection elements 222, 224 can in particular be essentially plate-shaped and/or essentially sheet-shaped.
  • the free end region 144 of the clamping arm 136 has a longitudinal center plane 242 which runs through the longitudinal axis 170 of the clamping screw 168, preferably regardless of whether the clamping screw 168 is in the engaged position or in the release position and preferably independently of which working position the clamping arm 136 is in.
  • the clamping arm 136 is provided with an offset 246, which is formed and arranged on the clamping arm 136 in such a way that a side wall facing the fastener receptacle 124 250 of the tensioning arm 136 in the bent region 248 of the tensioning arm 136 is offset by the distance ⁇ along the transverse direction 116 of the tensioning device 100 relative to the same side wall 250 in the free end region 144 of the tensioning arm 136, namely away from a lateral edge 252 of the fastener receptacle 124 an inner wall 226b of the housing 108 facing away from this lateral edge 252 of the fastener receptacle 124.
  • the side wall 150 of the clamping arm 136 in the free end region 144 of the clamping arm 136 on the one hand and the lateral edge 252 of the fastener receptacle 124 on the other hand lie almost in the same plane, which runs perpendicular to the transverse direction 116 of the clamping device 100, and the offset ⁇ generated by the offset 246 is almost the same size as the width of the fastener receptacle 124, that is to say its extent in the transverse direction 116, so that the bent region 248 of the clamping arm 136 is the fastener receptacle 124 - seen in the top view from above along the height direction 118 of the clamping device 100 - overlapped only to a small extent or not at all.
  • the actuating tool 244 it is therefore possible for the actuating tool 244 to extend laterally past the bent region 248 of the clamping arm 136 to a fastener 128 of the clamping device 100 received in the fastener receptacle 124 when the clamping arm 136 is in its upper end position, as is the case in the Fig. 17 to 19 is shown.
  • the actuating tool 244 can be designed, for example, as an Allen key 254, which has a long rectilinear tool section 256, a short rectilinear tool section 258 and a curved tool section 260 connecting the short rectilinear tool section 258 and the long rectilinear tool section 256 to one another.
  • the long straight tool section 256 can extend laterally past the clamping arm 136 from the bent area 248 of the clamping arm 136 to the fastener 128 received in the fastener receptacle 124, in particular to a fastening screw 130 of the fastener 128, when the clamping arm 136 is in its upper end position.
  • the bend 246 of the tensioning arm 136 is also designed and arranged on the tensioning arm 136 in such a way that the actuating tool 244, which engages the fastening means 128 arranged in the fastening means receptacle 124, for actuating the fastening means 128 is also located laterally on the bent area 248 of the clamping arm 136 can extend past the fastening means 128 when the clamping arm 136 is in its lower end position.
  • the actuating tool 244 can be arranged on the clamping device 100 in such a way that it extends laterally past the bent area 248 of the clamping arm 136 from above the clamping arm 136 to extends to the fastener 128 to engage and actuate the fastener 128 to secure the tensioner 100 to the substrate 126.
  • the bend 246 on the clamping arm 136 is also designed in such a way that a side wall 262 of the clamping arm 136 facing away from the fastener receptacle 124 is in the bent position Region 248 opposite the free end region 144 of the clamping arm 136 along the transverse direction 116 of the clamping device 100 from the lateral edge 252 of the fastener receptacle 124 to an inner wall 226b of the housing 108 facing away from the lateral edge 252 of the fastener receptacle 124 by the distance ⁇ ' is offset.
  • the clamping arm 136 points in its free end region 144 and in the bent area 248 has the same width, that is to say the same extent along the transverse direction 116 of the clamping device 100.
  • the clamping arm 136 has a smaller width in the bent region 248 than in the free end region 144.
  • the clamping arm 136 has a greater width in the bent region 248 than in the free end region 144.
  • the T-slot piece 132 is inserted into the relevant T-slot, the clamping device 100 is opened in this way arranged on the ground 126 so that the fastener receptacle 124 is located above the T-slot piece 132 in the height direction 118 of the clamping device 100, and the fastening screw 130 is inserted into the fastener receptacle 124 in such a way that its thread engages with the internal thread of the T -Groove piece 132 comes.
  • the actuating tool 244 is then brought into engagement with the head of the fastening screw 130 in such a way that the long straight tool section 256 extends from the fastening screw 130 laterally past the bent area 248 of the clamping arm 136 into the area above the clamping arm 136, as shown in FIG the Fig. 17 to 22 is shown.
  • an anti-rotation device 264 is provided on the underside of the housing 108, which in particular acts as a recess can be designed with a non-rotationally symmetrical cross section (see Fig. 4 ).
  • the anti-rotation device 264 is designed, for example, as a substantially cuboid-shaped recess in the bottom wall 236 of the housing 108.
  • the anti-rotation device 264 can be brought into engagement with a complementary positioning element when the clamping device 100 is placed on the base 126, so that the engagement between the positioning element fixed to the base 126 and the anti-rotation device 264 on the housing 108 of the clamping device 100 prevents rotation of the Housing 108 of the clamping device 100 is prevented relative to the substrate 126.
  • Illustrated second embodiment of a clamping device 100 for clamping a workpiece 102 differs from that in the Fig. 1 to 22 illustrated first embodiment in that in this second embodiment of the clamping device 100 no decoupling device 206 is provided, by means of which the thread 172 of the clamping screw 168 can be brought out of engagement with the engagement section 176 of the clamping arm 136.
  • the clamping screw 168 is rotatably mounted on the top wall 230 of the housing 108 about its longitudinal axis 170 by means of a stationary upper bearing 266 and by means of a stationary Lower bearing 268 is rotatably mounted on the bottom wall 236 of the housing 108 about its longitudinal axis 170.
  • the longitudinal axis 170 of the clamping screw 168 is always preferably aligned essentially parallel to the height direction 118 of the clamping device 100.
  • the thread 172 of the clamping screw 168 is always in engagement with the engagement section 176 of the clamping arm 136.
  • the tensioning arm 136 can therefore only be moved from a first working position to a second working position by rotating the tensioning screw 168 about its longitudinal axis 170, the rotation of the tensioning screw 168 being caused by an operator using a suitable actuating tool on the actuation end part 190 of the tensioning screw 168 attacks and rotates it.
  • the clamping arm 136 includes a bearing section 270 on both its left side and its right side, which is pivotally mounted on a side wall 272 of the housing 108 about the pivot axis 134 of the clamping arm 136.
  • each bearing section 270 is visible from the outside space 142 of the housing 108.
  • An index marking 156 is arranged on the outside 274 of the respective bearing section 270.
  • the housing 108 of the clamping device 100 is provided with two working position scales 154, each on an inner edge 276 of the housing 108 are provided, which lies opposite an edge of the respectively assigned bearing section 270 of the clamping arm 136.
  • each working position scale 154 includes a plurality of working position markings 158, in particular an upper end position marking 160a, a lower end position marking 160b and one or more intermediate position markings 162a, 162b and/or 162c.
  • the index mark 156 preferably extends in a direction directed radially to the pivot axis 134 of the clamping arm 136.
  • the index marking 156 can be designed, for example, as a depression or as an elevation on the bearing section 270 of the clamping arm 136.
  • the index marking 156 stands out from the surrounding area of the bearing section 270 of the clamping arm 136 due to its color and/or its brightness.
  • the working position markings 158 preferably extend in a direction directed radially to the pivot axis 134 of the clamping arm 136.
  • the working position markings 158 can in particular be designed as elevations or depressions on the housing 108.
  • the working position markings 158 may stand out from the area of the housing 108 adjacent to the working position markings 158 due to their color and/or their brightness.
  • the respective working position of the clamping arm 136 can be easily and reliably read from both sides of the clamping device 100.
  • the intermediate position markings 162a, 162b and 162c of the working position scale 154 lying between the upper end position marking 160a and the lower end position marking 160b are preferably arranged on the housing 108 in such a way that the heights H of the pressure piece pivot axis 148 with respect to the support surface 106 of the housing 108 of the clamping device 100, which the pressure piece pivot axis 148 occupies in the various intermediate positions of the clamping arm 136, to which the intermediate position markings 162a, 162b and 162c are assigned, and in the lower end position of the clamping arm 136, which is assigned the lower end position marking 160b, one essentially form an equidistant sequence.
  • the angle of rotation with respect to the pivot axis 134 of the clamping arm 136, by which the immediately successive working position markings 158 of the working position scale 154 assigned positions of the clamping arm 136 differ from one another, is not constant, but decreases from the upper end position marking 160a to the lower end position marking 160b.
  • the second embodiment of the clamping device 100 shown differs from that in the Fig. 1 to 22 illustrated embodiment further by the design of the chip protection elements 222 and 224, which at least partially cover the space between the two opposing inner walls 226a, 226b of the housing 108 of the clamping device 100, so that the interior 228 of the housing 108, in which the engagement section 176 of the clamping arm 136 and the thread 172 of the clamping screw 168 are arranged, by the chip protection elements 222, 224 against penetration of chips and / or other contaminants from the outer space 142 of the housing 108 is protected.
  • the upper chip protection element 222 can comprise a projection 280 arranged on the top wall 230 of the housing 108, which is provided with a cover 282.
  • the cover 282 can be formed, for example, from a plastic material, in particular an elastomeric material.
  • the cover 282 can be connected to the projection 280 in a detachable or non-detachable manner, in particular in a materially bonded manner, from the projection 280.
  • the lower chip protection element 224 is, for example, angled and includes a housing-side section 284 and a clamping arm-side section 286, the housing-side section 284 and the clamping arm-side section 286 preferably enclosing an obtuse angle ⁇ with one another.
  • the clamping arm-side section 286 and/or the housing-side section 284 of the lower chip protection element 224 is preferably essentially plate-shaped and/or essentially leaf-shaped.
  • the housing-side section 284 of the lower chip protection element 224 can be releasably secured to the bottom wall 236 of the housing 108 of the clamping device 100, for example by means of a fastening screw 288.
  • the upper and lower chip protection elements 222 and 224 disclosed in connection with the first embodiment and the second embodiment of the clamping device 100 can be interchanged with one another and/or combined with one another as desired.
  • any configuration of an upper chip protection element 222 can also be used as a configuration of a lower chip protection element 224
  • any configuration of a chip protection element 222 or 224 that has been described in connection with the first embodiment can also be used as a configuration of a chip protection element 222 or 224 of the second embodiment
  • any configuration of a chip guard member 222 or 224 of the second embodiment may be used as a configuration of one of the chip guard members 222 or 224 of the first embodiment.
  • the pressure piece 146 which is arranged on a free end region 144 of the clamping arm 136 facing away from the pivot axis 134 of the clamping arm 136, preferably includes a pressure piece base body 150, which is connected to the clamping arm 136, and a pressure piece insert 152 which is detachably connected to the pressure piece base body 150.
  • the pressure piece insert 152 is preferably connected to the pressure piece base body 150 by positive locking.
  • the pressure piece insert 152 is detachably secured to the pressure piece base body 150 by means of a tongue-and-groove connection.
  • FIG. 23 to 25 Four different pressure piece inserts 152a, 152b, 152c and 152d are shown as an example, which can be optionally arranged on the pressure piece base body 150 and exchanged for one another.
  • the first pressure piece insert 152a has a substantially flat clamping surface 290, which faces away from the pressure piece base body 150 when the pressure piece insert 152a is mounted on the pressure piece base body 150 and when using the clamping device 100 for clamping a workpiece 102 the workpiece 102 rests.
  • the second pressure piece insert 152b is provided with one or more grooves 292 on the clamping surface 290 facing away from the pressure piece base body 150 when the pressure piece insert 152b is in the assembled state, through which the clamping surface 290 is profiled, so that the pressure piece insert 152b is with its clamping surface 290 can dig into the workpiece 102 to be clamped in order to increase the adhesion between the pressure piece 146 and the workpiece 102 to be clamped.
  • the grooves 292 can run parallel to the transverse direction 116 of the clamping device 100 or run parallel to the longitudinal direction 114 of the clamping device 100 or run in any other direction.
  • a recess 294 is provided on the clamping surface 290 facing away from the pressure piece base body 150 in the mounted state of the pressure piece insert 152c, which recess extends in the transverse direction 116 of the clamping device 100 and preferably has a trapezoidal or triangular cross section perpendicular thereto having.
  • the clamping surface 290 facing away from the pressure piece base body 150 in the assembled state of the pressure piece insert 152d is provided with a recess 294 ', which extends parallel to the longitudinal direction 114 of the clamping device 100 and preferably perpendicular to this direction trapezoidal or triangular cross section.
  • a particularly good force transmission from the pressure piece 146 to a workpiece 102 can be achieved, which is a workpiece that is at least partially complementary to the respective recess 294 or 294' -Section has.
  • the pressure piece 146 can also be designed as in the first embodiment described above Fig. 56 to 60 shown and explained above in connection with the description of the first embodiment of the clamping device 100.
  • FIG. 23 to 35 Illustrated second embodiment of a clamping device 100 in terms of structure, method of manufacture and function with that in the Fig. 1 to 22 illustrated first embodiment, to the above description reference is made in this respect.
  • One in the Fig. 36 to 45 illustrated third embodiment of a clamping device 100 for clamping a workpiece 102 differs from that in the Fig. 23 to 35 illustrated second embodiment in that the clamping arm 136 has no bend 246, which is formed and arranged on the clamping arm 136 in such a way that an actuating tool 244 engaging on the fastening means 128 for actuating the fastening means 128 is in at least one working position of the clamping arm 136 relative to the Housing 108 can extend laterally past a bent area 248 of the clamping arm 136 to the fastening means.
  • the clamping arm 136 has a recess 296, which is formed and arranged on the clamping arm 136 in such a way that an actuating tool acting on the fastening means 128 for actuating the fastening means 128 is in at least one working position of the Clamping arm can extend relative to the housing 108 through the recess 296 to the fastener 128 received in the fastener receptacle 124.
  • the recess 296 is arranged between the pivot axis 134 of the clamping arm 136 on the one hand and the free end region 144 of the clamping arm 136, on which the pressure piece 146 is arranged, on the other hand.
  • the recess 296 is designed as a passage opening 298, which extends from an upper side 300 of the clamping arm 136, which faces away from the fastener receptacle 124, through the clamping arm 136 up to an underside 302 of the clamping arm 136, which faces the fastener receptacle 124, extends through the clamping arm 136.
  • the recess 296 is designed as an elongated hole which extends along the longitudinal direction of the clamping arm 136 and parallel to the longitudinal center plane 242 of the free end region 144 of the clamping arm 136.
  • the recess 296 is designed and arranged on the clamping arm 136 so that the actuating tool 244 is in both the Fig. 40 to 42 shown upper end position of the clamping arm 136 as well as in the Fig. 43 to 45 shown lower end position of the clamping arm 136 can extend through the recess 296 to the fastening means 128.
  • the clamping arm 136 is pivoted in the lower end position by an angle of at least 30°, in particular of at least 45°, particularly preferably of at least 60°, relative to the upper end position relative to the housing 108 of the clamping device 100 about the pivot axis 134.
  • the recess 296 is designed and arranged on the clamping arm 136 in such a way that the actuating tool 244 also extends relative to the housing 108 through the recess 296 to the fastening means 128 in every working position of the clamping arm lying between the upper end position and the lower end position can.
  • the clamping arm 136 is preferably designed to be essentially mirror-symmetrical with respect to the longitudinal center plane 242 of the free end region 144 of the clamping arm 136.
  • FIG. 36 to 45 illustrated third embodiment of a clamping device 100 in terms of structure, method of manufacture and Function with the in the Fig. 23 to 25 illustrated second embodiment, to the above description reference is made in this respect.
  • Illustrated fourth embodiment of a clamping device 100 for clamping a workpiece 102 differs from that in the Fig. 36 to 45 illustrated third embodiment in that the clamping arm 136 is not provided with a single recess 296 to enable the passage of the actuating tool 244 through the clamping arm 136 in every working position of the clamping arm 136, but the clamping arm 136 has a first recess 296a and a second recess 296b has, wherein the first recess 296a is formed and arranged on the clamping arm 136 so that the actuating tool 244 is in the in the Fig.
  • the clamping arm 136 can extend through the first recess 296a to the fastening means 128, and the second recess 296b is formed and arranged on the clamping arm 136 in such a way that the actuating tool 244 is in the in the Fig. 53 to 55 shown lower end position of the clamping arm 136 can extend through the second recess 296b to the fastening means 128.
  • Both recesses 296a and 296b are designed as passage openings 298 in the clamping arm 136, which extend through the clamping arm 136 from the top 300 of the clamping arm 136 facing away from the fastener receptacle 124 to the underside 302 of the clamping arm 136 facing the fastener receptacle 124 .
  • first recess 296a and the second recess 296b have a common mouth opening 304 on the underside 302 of the clamping arm 136.
  • first recess 296a and the second recess 296b open into separate openings on the underside 302 of the clamping arm 136.
  • the first recess 296a and the second recess 296b preferably open at separate openings 306a and 306b, respectively.
  • FIG. 46 to 55 Illustrated fourth embodiment of a clamping device 100 in terms of structure, method of manufacture and function with that in the Fig. 36 to 45 illustrated third embodiment, to the above description of which reference is made.

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  • Jigs For Machine Tools (AREA)

Claims (16)

  1. Dispositif de serrage pour enserrer une pièce (102),
    comprenant un boîtier (108),
    un bras de serrage (136) maintenu de manière à pouvoir pivoter sur le boîtier (108), et
    une vis de serrage (168), qui est montée de manière à pouvoir tourner autour d'un axe longitudinal (170) de la vis de serrage (168),
    dans lequel la vis de serrage (168) présente un filetage (172) et le bras de serrage (136) présente une section de prise (176), qui se trouve en prise avec le filetage (172) de la vis de serrage (168) dans un état de fonctionnement du dispositif de serrage (100),
    dans lequel le dispositif de serrage (100) comprend en outre un moyen de fixation (128) pour fixer le dispositif de serrage (100) sur un support (126) et un logement de moyen de fixation (124) et
    dans lequel le bras de serrage (136) présente au moins un évidement (296 ; 296a, 296b), lequel est réalisé et est disposé de telle sorte sur le bras de serrage (136) qu'un outil d'actionnement (244) s'engageant sur le moyen de fixation (128), destiné à actionner le moyen de fixation (128) peut s'étendre dans au moins une position de travail du bras de serrage (136) par rapport au boîtier (108) à travers l'évidement (296 ; 296a, 296b) de part en part jusqu'au moyen de fixation (128),
    caractérisé en ce
    que le bras de serrage (136) présente au moins un premier évidement (296a) et un deuxième évidement (296b) et peut être pivoté entre une première position de travail et une deuxième position de travail par rapport au boîtier (108), dans lequel le premier évidement (296a) est réalisé de telle sorte que l'outil d'actionnement (244) peut s'étendre dans la première position de travail à travers le premier évidement (296a) de part en part jusqu'au moyen de fixation (128) et
    la deuxième évidement (296b) est réalisé de telle sorte que l'outil d'actionnement (244) peut s'étendre dans la deuxième position de travail à travers la deuxième évidement (296b) de part en part jusqu'au moyen de fixation (128), peut s'étendre, dans une position de travail du bras de serrage (136) par rapport au boîtier (108), latéralement jusqu'au moyen de fixation (128) en passant devant la zone coudée (248) du bras de serrage (136) .
  2. Dispositif de serrage pour enserrer une pièce (102), comprenant un boîtier (108),
    un bras de serrage (136) maintenu de manière à pouvoir pivoter sur le corps (108) et
    une vis de serrage (168), qui est montée de manière à pouvoir tourner autour d'un axe longitudinal (170) de la vis de serrage (168),
    dans lequel la vis de serrage (168) présente un filetage (172) et le bras de serrage (136) présente une section de prise (176) qui, dans un état de travail du dispositif de serrage (100), se trouve en prise avec le filetage (172) de la vis de serrage (168), et
    dans lequel le dispositif de serrage (100) comprend en outre un moyen de fixation (128) pour fixer le dispositif de serrage (100) sur un support (126) et un logement de moyen de fixation (124),
    caractérisé en ce
    que le bras de serrage (136) présente au moins un coude (246), qui est réalisé et disposé sur le bras de serrage (136) de telle sorte qu'un outil d'actionnement (244) s'engageant sur le moyen de fixation (128), destiné à actionner le dispositif de fixation (128) peut s'étendre dans au moins une position de travail du bras de serrage (136) par rapport au boîtier (108) latéralement jusqu'au moyen de fixation (128) en passant devant la zone coudée (248) du bras de serrage (136).
  3. Dispositif de serrage selon la revendication 2, caractérisé en ce que le bras de serrage (136) peut être pivoté par rapport au boîtier (108) entre une première position de travail et une deuxième position de travail et en ce que le coude (246) est réalisé de telle sorte que l'outil d'actionnement (244) peut s'étendre à la fois dans la première position de travail et dans la deuxième position de travail latéralement jusqu'au moyen de fixation (128) en passant devant la zone coudée (248) du bras de serrage (136).
  4. Dispositif de serrage selon la revendication 3, caractérisé en ce que le bras de serrage (136) est pivoté, dans la deuxième position de travail, par rapport au boîtier (108) du dispositif de serrage (100) selon un angle d'au moins 30° par rapport à la première position de travail.
  5. Dispositif de serrage selon l'une quelconque des revendications 3 ou 4, caractérisé en ce que le coude (246) est réalisé de telle sorte que l'outil d'actionnement (244) peut s'étendre, dans chaque position du bras de serrage (136) située entre la première position de travail et la deuxième position de travail, par rapport au boîtier (108) latéralement jusqu'au moyen de fixation (128) en passant devant la zone coudée (248) du bras de serrage (136).
  6. Dispositif de serrage selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif de serrage (100) comprend au moins une échelle de position de travail (154), laquelle est disposée sur le boîtier (108) ou sur un composant du dispositif de serrage (100) relié de manière solidaire en rotation au boîtier (108), et comprend un repère d'index (156), lequel est disposé sur le bras de serrage (136) ou sur un composant du dispositif de serrage (100) relié de manière solidaire en rotation au bras de serrage (136), dans lequel respectivement un positionnement prédéfini du repère d'index (156) par rapport à l'échelle de position de travail (154) est associé à plusieurs positions de travail du bras de serrage (136) par rapport au boîtier (108).
  7. Dispositif de serrage selon la revendication 6, caractérisé en ce que l'échelle de position de travail (154) comprend plusieurs repères de position de travail (158), auxquels sont associées différentes positions de travail du bras de serrage (136) par rapport au boîtier (108) .
  8. Dispositif de serrage selon la revendication 7, caractérisé en ce que le bras de serrage (136) est pourvu d'une pièce de pression (146) et les hauteurs (H) de la pièce de pression (146) par rapport à une surface d'appui (106) du boîtier (108) du dispositif de serrage (100), que la pièce de pression (146) adopte respectivement dans les différentes positions de travail, auxquelles les repères de position de travail (158) sont associés, forment une succession sensiblement équidistante.
  9. Dispositif de serrage selon la revendication 8, caractérisé en ce qu'un des repères de position de travail (158) est un repère de position finale supérieure (160a), lequel est associé à la position de travail, dans laquelle la hauteur (Ho) de la pièce de pression (146) par rapport à la surface d'appui (106) du boîtier (108) est maximale.
  10. Dispositif de serrage selon l'une quelconque des revendications 8 ou 9, caractérisé en ce que l'un des repères de position de travail (158) est un repère de position finale inférieur (160b), qui est associé à la position de travail dans laquelle la hauteur (Hu) de la pièce de pression (146) est minimale par rapport à la surface d'appui (106) du boîtier (108).
  11. Dispositif de serrage selon l'une quelconque des revendications 6 à 10, caractérisé en ce qu'au moins une des échelles de position de travail (154) est disposée sur une arête extérieure (164) du boîtier (108).
  12. Dispositif de serrage selon l'une quelconque des revendications 6 à 11, caractérisé en ce qu'au moins une des échelles de position de travail (154) est disposée sur un bord intérieur du boîtier (108), qui fait face à un bord d'une section de palier (180) du bras de serrage (136).
  13. Dispositif de serrage selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le bras de serrage (136) est pourvu d'une pièce de pression (146), laquelle comprend un corps de base de pièce de pression (150) et un insert de pièce de pression (152 ; 152') relié de manière amovible au corps de base de pièce de pression (150).
  14. Dispositif de serrage selon la revendication 13, caractérisé en ce que l'insert de pièce de pression (152') est relié de manière amovible au corps de base de la pièce de pression (150) au moyen d'un élément magnétique (310).
  15. Combinaison d'un dispositif de serrage (100) selon les revendications 1 à 14 et d'un outil d'actionnement (244) destiné à actionner un moyen de fixation (128) pour fixer le dispositif de serrage (100) sur un support (126).
  16. Combinaison selon la revendication 15, caractérisée en ce que l'outil d'actionnement (244) présente une section d'outil sensiblement rectiligne (256), qui s'étend depuis l'évidement (296 ; 296a, 296b) ou la zone coudée (248) du bras de serrage (136) jusqu'au moyen de fixation (128) lorsque l'outil d'actionnement (244) est utilisé pour actionner le moyen de fixation (128) .
EP20205131.4A 2019-11-04 2020-11-02 Dispositif de serrage permettant de serrer une pièce Active EP3815845B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019129676.5A DE102019129676A1 (de) 2019-11-04 2019-11-04 Spannvorrichtung zum Einspannen eines Werkstücks

Publications (2)

Publication Number Publication Date
EP3815845A1 EP3815845A1 (fr) 2021-05-05
EP3815845B1 true EP3815845B1 (fr) 2023-09-27

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EP20205131.4A Active EP3815845B1 (fr) 2019-11-04 2020-11-02 Dispositif de serrage permettant de serrer une pièce

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EP (1) EP3815845B1 (fr)
DE (1) DE102019129676A1 (fr)
ES (1) ES2966647T3 (fr)
PL (1) PL3815845T3 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463408A2 (fr) * 1972-01-28 1981-02-20 Carossino Andre Dispositif multiplicateur de puissance en particulier pour le calcul de la resistance des materiaux, la realisation d'empreintes, le bridage de pieces ou autres
DE8515633U1 (de) * 1985-05-28 1985-07-11 Carossino Freres, Saint-Ouen l'Aumone Spannvorrichtung zum Spannen von Werkstücken auf Tischen von Werkzeugmaschinen
DE4116161C2 (de) * 1991-05-17 1994-07-14 Frey Rudolf Spannvorrichtung
FR2767730B1 (fr) * 1997-09-03 1999-10-29 Patricia Carossino Dispositif de bridage vertical a force d'application elevee
US10625382B2 (en) * 2012-08-01 2020-04-21 Delaware Capital Formation, Inc. Toggle lever clamp
GB2522631A (en) * 2014-01-30 2015-08-05 Daniel Roy Shepherd A clamping device
ES2624441T3 (es) * 2015-01-28 2017-07-14 Univer S.P.A. Dispositivo de sujeción
CN106984911B (zh) * 2017-05-27 2018-11-02 苏州大学 一种激光加工用夹具
DE102018200018A1 (de) * 2018-01-02 2019-07-18 Ford Global Technologies, Llc Fertigungshilfsmittel

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PL3815845T3 (pl) 2024-03-04
EP3815845A1 (fr) 2021-05-05
DE102019129676A1 (de) 2021-05-06
ES2966647T3 (es) 2024-04-23

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