EP3851250A1 - Dispositif de serrage de pièce pourvu de corps d'accouplement entre le corps de serrage et la broche filetée - Google Patents

Dispositif de serrage de pièce pourvu de corps d'accouplement entre le corps de serrage et la broche filetée Download PDF

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Publication number
EP3851250A1
EP3851250A1 EP21151292.6A EP21151292A EP3851250A1 EP 3851250 A1 EP3851250 A1 EP 3851250A1 EP 21151292 A EP21151292 A EP 21151292A EP 3851250 A1 EP3851250 A1 EP 3851250A1
Authority
EP
European Patent Office
Prior art keywords
coupling
thread
clamping
clamping device
coupling body
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Withdrawn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
EP21151292.6A
Other languages
German (de)
English (en)
Inventor
Philipp Lang
Günter Lang
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.)
Lang Technik GmbH
Original Assignee
Lang Technik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lang Technik GmbH filed Critical Lang Technik GmbH
Publication of EP3851250A1 publication Critical patent/EP3851250A1/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Withdrawn legal-status Critical Current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
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/103—Arrangements for positively actuating jaws using screws with one screw perpendicular to the jaw faces, e.g. a differential or telescopic screw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • 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
    • B25B1/02—Vices with sliding jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/10—Arrangements for positively actuating jaws using screws
    • B25B1/12—Arrangements for positively actuating jaws using screws with provision for disengagement
    • B25B1/125—Arrangements for positively actuating jaws using screws with provision for disengagement with one screw perpendicular to the jaw faces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B25B1/2478—Construction of the jaws with more than one pair of jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2484—Supports
    • 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
    • B25B1/2489—Slideways
    • 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

Definitions

  • the invention relates to a workpiece clamping device with a first clamping body and a second clamping body.
  • the workpiece clamping device is designed to clamp a workpiece directly or indirectly between the clamping bodies.
  • the clamping bodies are arranged displaceably on at least one base body.
  • the clamping bodies can be moved towards or away from one another by rotating a threaded spindle about a longitudinal axis in order to clamp or loosen a workpiece.
  • Such a workpiece clamping device is, for example, from DE 10 2017 122 112 A1 famous.
  • the clamping bodies are provided with a threaded hole and are in engagement with the threaded spindle.
  • the workpiece clamping device has at least one base body and preferably at least two base bodies.
  • the at least one base body is designed to be arranged on a carrier.
  • the carrier can be formed by one or more carrier plates.
  • a fastening device is preferably provided in order to arrange the at least one base body in a non-positive and / or form-locking releasable manner on the carrier.
  • a first clamping body and a second clamping body are mounted on the at least one base body so as to be displaceable in a tensioning direction.
  • the first clamping body can be mounted displaceably on a first base body and the second clamping body on a second base body.
  • the two base bodies are formed separately from one another and arranged in the tensioning direction R, in particular at a distance.
  • a threaded spindle rotatable about a longitudinal axis of the spindle extends in the clamping direction along the at least one base body.
  • the threaded spindle has a first threaded section for the first clamping body and a second threaded section for the second clamping body.
  • the first threaded section and the second threaded section preferably have different directions of rotation or directions of rotation.
  • the first thread section can be a right-hand thread and the second thread section can be a left-hand thread or vice versa.
  • the workpiece clamping device has a coupling body for each clamping body.
  • Each coupling body can be moved, for example displaced, between a coupling position and a release position.
  • Each coupling body has an end which is assigned to the threaded spindle or the first threaded section or second threaded section and carries a partial counter-thread.
  • the partial mating thread is a thread turning direction or in the circumferential direction not completely closed thread.
  • the partial mating thread engages in the assigned first thread section or the assigned second thread section.
  • the threaded spindle is rotated, a movement of the clamping body in the clamping direction is therefore effected.
  • the release position of the coupling body in question the partial mating thread is out of engagement with the associated first thread section or second thread section. There is therefore no drive coupling between the threaded spindle and the clamping body.
  • the clamping body can be positioned quickly and without rotating the threaded spindle relative to the at least one base body. This enables the position of the clamping bodies to be set quickly in the clamping direction in order to adapt the workpiece clamping device to workpieces of different sizes. With very long threaded spindles in particular, a time-consuming rotational movement would otherwise be required to adjust the clamping bodies if they have to cover a correspondingly long distance in the clamping direction.
  • the first thread section and the second thread section preferably have the same amount of thread pitch.
  • the clamping bodies each have the same distance from a center plane which is oriented at right angles to the clamping direction.
  • the center plane penetrates the threaded spindle between the first threaded section and the second threaded section.
  • the workpiece clamping device has a first coupling body for the first clamping body and a second coupling body, which differs from the first coupling body, for the second clamping body.
  • the two coupling bodies in particular have partial counter-threads with opposite directions of rotation, each adapted to the associated first thread section or second thread section.
  • each clamping body has a receiving recess.
  • the receiving recess is designed to receive the associated coupling body, in particular when it is in the coupling position.
  • the receiving recess preferably completely penetrates the clamping body in a direction at right angles to the longitudinal axis of the spindle.
  • the coupling body can be inserted into the receiving recess on the side facing away from the threaded spindle and can protrude with its end associated with the threaded spindle in the coupling position from the receiving recess in order to engage with the first threaded section or the second threaded section.
  • each coupling body has a base part.
  • the base part is designed for the detachable attachment of the coupling body to the associated clamping body and can work together with an associated securing device for this purpose.
  • the coupling body is preferably by means of the base part held positively and / or positively on the associated clamping body.
  • the base part can, for example, have a plate-like shape. This is to be understood as a shape in which the thickness of the base part is smaller than the dimension of the base part in at least one direction at right angles to the thickness.
  • the base part has a stop surface which cooperates with a counter stop surface of the associated clamping body. In the coupling position of the coupling body, the stop surface of the base part rests against the counter stop surface. As a result, a relative position can be defined between the coupling body and the clamping body in the coupling position in order to ensure a secure engagement of the partial mating thread in the assigned first thread section or the assigned second thread section.
  • each coupling body can have a coupling part on which the partial mating thread is arranged.
  • the coupling part can protrude transversely from the base part to an end that is assigned to the threaded spindle and on which the partial mating thread is arranged.
  • the coupling part can be aligned at right angles to the threaded spindle. In addition or as an alternative, it can also be oriented at right angles to a plane in which the stop surface of the base part extends.
  • the stop surface can, however, also be oriented at an angle of more than 90 ° with respect to the direction of extension of the coupling part, for example if the base part passes through an obliquely inclined stop surface tapers towards the coupling part.
  • Each partial mating thread is not completely closed in a circumferential direction around a thread axis of the partial mating thread, but extends in particular by a maximum of 180 ° around the thread axis.
  • An end face of the end of the coupling body carrying the partial mating thread thus has a contour corresponding to a partial cylinder surface area which extends in the circumferential direction by at most 180 ° around the cylinder axis.
  • Each partial mating thread has several thread projections and several thread depressions.
  • the thread projections of a common partial counter-thread each extend in an arc shape along a common helical path or helix.
  • the thread recesses of a common partial mating thread each extend in an arc shape along a common helical path or helix.
  • Each thread protrusion and each thread recess preferably extends by a maximum of 180 ° around the thread axis A.
  • a safety device can be assigned to each coupling body.
  • a separate safety device is preferably provided for each coupling body.
  • the securing device can, for example, have at least one securing body.
  • the safety device is designed to hold the coupling body in its coupling position and to secure it against moving out of the coupling position in the direction of the release position.
  • Each securing device can preferably be switched between a securing position and a release position become.
  • the at least one securing body of each securing device can be moved between the securing position and the release position, preferably by a rotary movement or pivoting movement.
  • the at least one securing body of each securing device can be rotated or pivoted about an eccentric axis.
  • Each securing body can have an eccentric part which is arranged eccentrically to the eccentric axis.
  • the eccentric axis can be defined by a bolt and in particular a threaded bolt.
  • the eccentric part can be formed by an eccentrically arranged bolt head.
  • the bolt head has an outer contour that is not rotationally symmetrical with respect to the eccentric axis, for example an outer contour that deviates from a circular contour.
  • the eccentric part can secure the associated coupling body in the securing position of the securing device against movement, for example against displacement away from the threaded spindle.
  • the eccentric part can enable a movement away from the threaded spindle.
  • the eccentric part can act on the coupling body and in particular the base part in a form-fitting and / or force-fitting manner in the securing position, while in the release position it is preferably arranged without contact with the coupling body.
  • the workpiece clamping device 10 has at least one base body and, in the exemplary embodiment, a first base body 11 and a second base body 12 separate from the first base body 11.
  • the two base bodies 11, 12 are designed to arrange the workpiece clamping device 10 on a carrier 13.
  • the carrier 13 has a carrier surface 14 that is flat at least in sections.
  • Each base body 11, 12 has an underside which is flat at least in sections and is designed to be arranged on the carrier surface 14 of the carrier 13.
  • the carrier surface 14 extends completely in a single plane, which is spanned by a tensioning direction R and a transverse direction Q oriented at right angles to the tensioning direction R.
  • a height direction H is aligned at right angles to the tensioning direction R and to the transverse direction Q.
  • the height direction H, the transverse direction Q and the clamping direction R define a coordinate system of the workpiece clamping device 10.
  • the base bodies 11, 12 can be arranged on the carrier 13 in a form-fitting and / or force-fitting manner.
  • a fastening device 15 is provided for this purpose.
  • the fastening device includes fastening pins 18 which protrude from the underside of each base body 11, 12, with at least three and, according to the example, four fastening pins 18 being arranged on each base body.
  • the carrier 13 there are holes 19 which are open towards the carrier surface 14 and into which the fastening pins 18 can be inserted.
  • an actuating element 20 actuatable and for example displaceable clamping slides, the ends of which are each assigned to one of the holes 19.
  • a fastening pin 18, which is arranged in a hole 19 can be clamped in a form-fitting and / or force-fitting manner by means of the associated tensioning slide.
  • the force generated in this way can have a component transverse to the direction of extent of the fastening pin 18 and at the same time in the direction of extent of the fastening pin 18, so that the underside of the base bodies 11, 12 is pulled against the support surface 14.
  • the actuating element 20 of the carrier 13 is accessible from the outside and can for example be a screw.
  • the first base body 11 and the second base body 12 are arranged at a distance from one another in the tensioning direction R.
  • a first clamping body 25 is arranged on the first base body 11 such that it can be displaced in the tensioning direction R.
  • a second clamping body 26 is arranged on the second base body 12 so as to be displaceable in the tensioning direction R.
  • a clamping surface 27 for acting on a workpiece to be clamped is present on each clamping body 25, 26.
  • a suitable connecting device can be present on each clamping body 25, 26 in order to be able to arrange a separate clamping jaw on the clamping body 25, 26.
  • a clamping surface for clamping a workpiece can in turn be provided on the clamping jaw.
  • Each clamping body 25, 26 has in the transverse direction Q at a distance from one another guide elements 28, each with a guide 29 on the first base body 11 or work together on the second base body 12 in order to guide the first clamping body 25 and the second clamping body 26 in the tensioning direction R. Between the two guide elements 28, the clamping body 25, 26 has a central part 30 with an opening 31 completely penetrating the clamping body 25, 26 in the tensioning direction R. A section of a threaded spindle 32 extends through the opening 31. The threaded spindle 32 extends along the first base body 11 and of the second base body 12. The threaded spindle 32 has a spindle longitudinal axis L which extends in the clamping direction R.
  • the threaded spindle 32 has a first threaded section 33 which is arranged adjacent to the first base body 11.
  • the threaded spindle 32 has a second threaded section 34 which is arranged adjacent to the second base body 12.
  • the two threaded sections 33, 34 can be arranged on separate spindle parts which are connected to one another between the threaded sections 33, 34 by a center piece, for example a sleeve 35.
  • the two threaded sections 33, 34 have opposite directions of rotation.
  • the first threaded section 33 can be designed as a right-hand thread and the second threaded section 34 as a left-hand thread, or vice versa.
  • the amount of the thread pitches is the same in both thread sections 33, 34.
  • the threaded spindle 32 With its first threaded section 33, the threaded spindle 32 extends through the opening 31 of the first clamping body 25 and with the second threaded section 34, the threaded spindle 32 extends through the opening 31 of the second clamping body 26.
  • the first clamping body 25 is a first coupling body 40 with a first Partial mating thread 41 assigned.
  • the second clamping body 26 is a second Coupling body 42 with a second partial mating thread 43 assigned.
  • the first partial counter-thread 41 is adapted to the first thread section 33 with regard to the direction of rotation and the thread pitch in order to enable a thread engagement between the first partial counter-thread 41 and the first threaded section 33.
  • the second partial counter-thread 43 is adapted to the second thread section 34 with regard to the thread pitch and the direction of rotation in order to enable a thread engagement between the second partial counter-thread 43 and the second threaded section 34.
  • the first coupling body 40 and the second coupling body 42 are each between a coupling position I ( Figures 1-3 and 6th ) and a release position II ( Figures 4 and 5 ) movable.
  • the first partial mating thread 41 In the coupling position of the first coupling body 40, the first partial mating thread 41 is in engagement with the first threaded portion 33.
  • the release position II of the first coupling body 40 In the release position II of the first coupling body 40, the first partial mating thread 41 is out of engagement with the first threaded portion 33.
  • the coupling position I of the second coupling body 42 is the second partial counter-thread 43 in engagement with the second threaded section 34 of the threaded spindle 32 and in the release position II of the second coupling body 42 the second partial counter-thread 43 is out of engagement with the second threaded section 34.
  • the partial counter threads 41, 43 are in the Figures 7 and 8 illustrated.
  • Each partial counter-thread 41, 43 has a plurality of thread projections 44 which are arranged on a common screw path or helix which extends around a thread axis A of the partial counter-thread 41, 43.
  • each partial counter-thread 41, 43 has a plurality of thread recesses 45, which are located on a common screw path or extend helix around thread axis A.
  • the thread projections 44 and the thread recesses 45 extend in a circumferential direction U around the thread axis A in an angular range which is at most and in the exemplary embodiment exactly 180 °.
  • the partial mating threads 41, 43 can be brought into engagement or disengagement from the respectively assigned thread section 33, 34 by a linear movement at right angles or radially to the longitudinal axis L of the spindle.
  • the partial mating threads 41, 43 are arranged on an end 46 of the respective coupling body 40, 42 that is assigned to the threaded spindle 32.
  • This end 46 is formed by the end or an end section of a coupling part 47 of the coupling body 40, 42, which extends from a base part 48 of the coupling body 40, 42 to the end 46.
  • the base part 48 On the side facing the coupling part 47, the base part 48 has a stop surface 49 which is designed to work together with a counter stop surface 50 on the associated first clamping body 25 or second clamping body 26.
  • the stop surface 49 extends in one plane.
  • the counter stop surface 50 extends in a plane that is spanned by the tensioning direction R and the transverse direction Q.
  • the coupling part 47 of the coupling body 40, 42 is aligned at right angles to the stop surface 49 in the exemplary embodiment.
  • the coupling part 47 extends in particular starting from the stop surface 49 to the end 46.
  • the stop surface 49 can completely enclose the coupling part 47 at the connection point to the base part 48 or only laterally over the coupling part at at least one point 47 protrude.
  • the receiving recess 54 has a first section 55 which opens into the opening 31 and is designed to receive the coupling part 47.
  • the first section 55 is followed by a second section 56 on the side opposite the opening 31, which is designed to receive the base part 48.
  • the second section 56 is larger than the first section 55 in the transverse direction Q and / or in the tensioning direction R.
  • the counter-stop surface 50 is formed adjacent to the first section 55.
  • the threaded spindle 32 passes through the opening 31 of the clamping body 25, 26.
  • the diameter of the opening 31 is larger than the outer diameter the threaded spindle 32 or the first threaded section 33 and the second threaded section 34.
  • the coupling body 40, 42 is brought into its coupling position I and, for this purpose, pushed into the receiving recess 54 until the stop surface 49 hits the counter-stop surface 50 rests. Then the partial mating thread 41, 43 is in engagement with the assigned threaded section 33, 34 of the threaded spindle 32.
  • the displacement of the clamping body 25, 26 relative to the base body 11, 12 is only possible in the coupling position I of the coupling body 40, 42 when the threaded spindle 32 is rotated about the longitudinal axis L of the spindle.
  • the workpiece clamping device 10 has a securing device 60 for each coupling body 40, 42.
  • the securing device 60 can be between a securing position III (FIGS. 3 and 6) and a release position IV ( Figure 5 ) are moved.
  • the release position IV the coupling body 40, 42 can be displaced in the receiving recess 54, while the securing position III blocks a displacement of the coupling body 40, 42 in the receiving recess 54.
  • each securing device 60 has two separate securing bodies 61.
  • each securing body 61 has a bolt 62 which defines an eccentric axis S.
  • At one end of the bolt 62 there is a bolt head which forms an eccentric part 63 mounted eccentrically about the eccentric axis S.
  • the eccentric part 63 has a tool engagement surface 64 which, for example, as Hexagon socket, hexalobular socket, slot, cross slot or other known manner can be carried out.
  • the eccentric part 63 is not contoured to be rotationally symmetrical with respect to the eccentric axis S.
  • the eccentric part 63 has different dimensions on two opposite sides with respect to the eccentric axis S at right angles to the eccentric axis. According to the example, it has a first eccentric section 63a and a radially larger second eccentric section 63b, which lies diametrically opposite the first eccentric section 63a with respect to the eccentric axis S.
  • the second eccentric section 63b extends in the shape of a circular arc around the eccentric axis S in an angular range of, for example, 180 ° to 200 ° around the eccentric axis S.
  • the second eccentric section 63b is followed by the first eccentric section 63a, which, for example, has an arcuate outer contour with a larger radius and whose center point is offset from the eccentric axis S.
  • the eccentric part 63 can also have other configurations that are eccentric with respect to the eccentric axis S.
  • the eccentric part 63 pivots around the respective eccentric axis S and can be pivoted between the securing position I and the release position II.
  • the eccentric part 63 In the securing position III, the eccentric part 63 is in contact with the coupling body 40, 42 located in the coupling position I and secures it against displacement relative to the clamping body 25, 26, for example against movement in the vertical direction H.
  • the second eccentric section 63b of the The eccentric part 63 partially overlaps the base part 48 of the coupling body 40, 42.
  • the first eccentric section 63a can face the adjacent base part 48 without reaching over it. If all of the securing bodies 61 of the securing device 60 are in this position, the securing device 60 assumes the release position IV.
  • the base part 48 has, on two opposite sides in the transverse direction Q, a recess 65 which is open in the transverse direction Q.
  • the recess 65 is delimited at least on one side by a securing surface 66.
  • the securing surface 66 points away from the coupling part 47 or the partial mating thread 41, 43 or the stop surface 49.
  • the recess 65 can be open on the side opposite the securing surface 66 in the height direction H ( Figure 2 ).
  • first clamping body 25 and in the second clamping body 26 there is an eccentric recess 67 on opposite sides in the transverse direction Q, which is accessible from the outside and which is designed to receive the eccentric part 63 of a securing body 61.
  • the bolt receptacle 68 In the extension of the eccentric recess 67 and adjacent to the receiving recess 54, there is a bolt receptacle 68 in the clamping body 25, 26, which is designed to receive and in particular to screw in the bolt 62 is.
  • the bolt receptacle 68 can have an internal thread and the bolt 62 can have an external thread.
  • the securing device 60 works as follows: The securing bodies 61 can be screwed with the bolts 62 into the associated bolt receptacle 68. When rotated 180 ° around the respective eccentric axis S, the eccentric part 63 can be brought into a pivoting position in which it is located within the eccentric recess 67 and does not protrude into the recess recess 54 or overlap it. This position is in Figure 5 illustrated. The safety device 60 is then in the release position IV.
  • the securing device 60 can be switched to the securing position III, in which the eccentric parts 63 are pivoted about the respective eccentric axis S until they are at least partially in the Recess 65 protrude into the base part 48.
  • the eccentric parts 63 overlap the securing surface 66 adjacent to the recess 55. This blocks the coupling body 40, 42 from being displaced away from the threaded spindle 32 in the receiving recess 54.
  • the clamping bodies 25, 26 can be quickly adjusted along the base bodies 11, 12.
  • the securing device 60 is brought into the release position IV and the coupling bodies 40, 42 are moved into their respective release position II by being disengaged from the respectively assigned threaded section 33, 34 of the threaded spindle 32 Clamping bodies 25, 26 can then be displaced relative to the threaded spindle 32 about the spindle longitudinal axis L without rotating the threaded spindle 32.
  • the coupling bodies 40, 42 are moved back into the coupling position I and the securing device 60 is then brought into the securing position III.
  • a displacement of the clamping bodies 25, 26 relative to the threaded spindle 32 is no longer possible in this state. Rather, the clamping bodies 25, 26 can only be moved relative to the base bodies 11, 12 by rotating the threaded spindle 32, for example in order to generate a clamping force on a workpiece. In this way, the workpiece clamping device 10 can be adapted quickly and easily to the clamping of workpieces with different dimensions.
  • a scale 69 can be provided on the base bodies 11, 12 for positioning the clamping bodies 25, 26 in the uncoupled state from the threaded spindle 32.
  • both clamping bodies 25, 26 it is quickly and easily possible for both clamping bodies 25, 26 to be arranged at the same distance from a common center plane.
  • the center plane extends at right angles to the tensioning direction R or to the longitudinal axis L of the spindle centrally between the two base bodies 11, 12 or centrally through the threaded spindle 32.
  • the invention relates to a workpiece clamping device 10 with at least one base body 11, 12.
  • a first clamping body 25 and a second clamping body 26 are mounted on the at least one base body 11, 12 so as to be displaceable in a clamping direction R.
  • a threaded spindle 32 extends along a spindle longitudinal axis L. The spindle longitudinal axis L is aligned in the tensioning direction R. It has a first threaded section 33 for the first clamping body 25 and a second threaded section 34 for the second clamping body 26.
  • a first coupling body 40 has a first partial counter-thread 41 and a second coupling body 42 has a second partial counter-thread 43.
  • a coupling position I is the partial counter-thread 41 , 43 in engagement with the associated thread section 33 or 34.
  • a release position II the partial counter-thread 41, 43 is out of engagement with the associated thread section 33, 34.
  • the clamping bodies 25, 26 can be displaced without rotating the threaded spindle 32 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
EP21151292.6A 2020-01-17 2021-01-13 Dispositif de serrage de pièce pourvu de corps d'accouplement entre le corps de serrage et la broche filetée Withdrawn EP3851250A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102020101062.1A DE102020101062B4 (de) 2020-01-17 2020-01-17 Werkstückspannvorrichtung mit Kopplungskörper zwischen Klemmkörper und Gewindespindel

Publications (1)

Publication Number Publication Date
EP3851250A1 true EP3851250A1 (fr) 2021-07-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21151292.6A Withdrawn EP3851250A1 (fr) 2020-01-17 2021-01-13 Dispositif de serrage de pièce pourvu de corps d'accouplement entre le corps de serrage et la broche filetée

Country Status (3)

Country Link
US (1) US11712785B2 (fr)
EP (1) EP3851250A1 (fr)
DE (1) DE102020101062B4 (fr)

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US11733255B1 (en) * 2022-09-30 2023-08-22 United Arab Emirates University Industrial inspection system with interlock

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DE102014111802A1 (de) * 2014-08-19 2016-02-25 Georg Kesel Gmbh & Co. Kg Zentrumsspanner mit Schnellwechselbacken
DE102017122112A1 (de) 2017-09-25 2019-03-28 Thiemo Kretzschmar Schraubstockvorrichtung

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US11712785B2 (en) 2023-08-01
US20210220966A1 (en) 2021-07-22
DE102020101062A1 (de) 2021-07-22

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