EP3403766A1 - Dispositif de serrage pour au moins un composant à serrer - Google Patents

Dispositif de serrage pour au moins un composant à serrer Download PDF

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Publication number
EP3403766A1
EP3403766A1 EP18000449.1A EP18000449A EP3403766A1 EP 3403766 A1 EP3403766 A1 EP 3403766A1 EP 18000449 A EP18000449 A EP 18000449A EP 3403766 A1 EP3403766 A1 EP 3403766A1
Authority
EP
European Patent Office
Prior art keywords
clamping device
clamping
housing
clamped
compression spring
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Withdrawn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
EP18000449.1A
Other languages
German (de)
English (en)
Inventor
Ralf Wagner
Rainer GRAMLICH
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.)
Michael Weinig AG
Original Assignee
Michael Weinig AG
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 Michael Weinig AG filed Critical Michael Weinig AG
Publication of EP3403766A1 publication Critical patent/EP3403766A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive

Definitions

  • the invention relates to a clamping device for at least one component to be clamped, preferably a woodworking machine, in particular a molding machine, according to the preamble of claim 1.
  • clamping screws or clamping nuts with which the component to be clamped can be clamped.
  • Such clamps are used for example in profile jointers to clamp Jointerkassetten with it clamped joint stones in a jointing device and clamp after their positioning in the set position.
  • the use of clamping screws or clamping nuts is often cumbersome and difficult, since these clamping elements are often difficult to access and can not be operated externally (from the outside, from elsewhere) or automatically.
  • the invention has the object of providing the generic clamping device in such a way that the component to be clamped can be simply and reliably clamped or solved.
  • the component to be clamped is automatically clamped.
  • the compression spring is provided, which is housed in the housing of the clamping device and generates the clamping force required for clamping.
  • a clamping can also be used in machines in which the clamping device is provided, for example, behind a closed hood. This is the case, for example, when the component to be clamped is an abutment for the spindle of the machine.
  • the housing of the clamping device is advantageously mounted displaceably on the support member.
  • the housing can therefore be moved to release the clamping on the support member against the clamping force generated by the compression spring.
  • Fig. 1 shows the clamping device with which a counter-bearing plate 1 can be clamped.
  • Fig. 2 shows, for clamping the counter-bearing plate 1, two clamping devices are used.
  • the counter-bearing plate 1 has a recess 2, in which the counter-bearing sits in the spindle pin.
  • a vent screw 27 For venting the pressure chamber 24 during assembly or commissioning a vent screw 27 is provided. On the vent screw 27, a protective cap 28 is advantageously placed.
  • the sensor 29 is attached to the outside of the housing 5 and protrudes through an opening 30 in the housing wall.
  • the adjustment of the sensor 29 is possible by means of a sensor holder 9 and a screw 10, with which the sensor holder 9 is attached to the outside of the housing 5.
  • a guide rail 34 may be provided, which allows a simpler sliding of the counter-bearing plate 1 relative to the machine stand 33 and at the same time serves as wear protection for the machine stand 33.
  • the guide rail 34 is clamped in the clamping position between the counter-bearing plate 1 and the machine stand 33.
  • the cylinder piston 4 is screwed during assembly through the longitudinal slot 3 and a bore of the guide bar through with its end portion 31 in the machine stand 33 and in a corresponding holding part of the machine stand until a shoulder 72 of the cylinder piston 4 rests on the machine stand.
  • the plate spring assembly is biased with the necessary force, so that in this clamping state, the housing 5, the desired clamping force on the counter-bearing plate 1 exerts.
  • a clamping force of about 10 kN is generated with the plate spring package 14.
  • the pressure chamber 24 in a manner to be described ( Fig. 7 ) depressurized, so that the plate spring assembly 14 presses the housing 5 against the counter-bearing plate 1 via the nut 7, which is clamped between the housing 5 and the machine stand 33 and the guide rail 34.
  • the sensor 29 is monitored whether the clamp is released.
  • the sensor 29 is connected to a controller which receives a corresponding signal from the sensor 29 and only allows the adjustment of the spindle when the clamping of the counter-bearing plate 1 is released.
  • the plate spring package 14 is to be understood as an example only as a compression spring. Instead of a disc spring package, any other suitable compression spring can be used with which the required clamping force can be generated.
  • the 4 to 6 show a clamping device with the Jointerkassetten 35 can be clamped.
  • the clamping device is formed substantially the same as the embodiment according to the Fig. 1 to 3 ,
  • the clamping device has the housing 5, which is advantageously cuboid in this embodiment and in which the nut 7 is screwed. It lies with one end in the clamping position on a guide plate 36 of the Jointerkassette 35.
  • the bottom 19 of the housing 5 is closed.
  • the cylinder piston 4 has the cylindrical guide part 16 which projects into a recess 37 in the bottom 19.
  • an annular groove 39 which receives a sealing ring 40, preferably an O-ring.
  • the sealing ring 40 With the sealing ring 40, the sealing of the housing 5 relative to the piston-shaped guide member 16 of the cylinder piston 4, which is screwed with its end portion 31 in a threaded bore 41 of a guide carriage 42, with at least one lubrication 42 'is provided.
  • the guide carriage 42 is part of a jointing means, not shown, for a mounted on a rotatably driven spindle tool.
  • the plate spring assembly 14 is supported at one end on the nut 7 and at the other end on the guide member 16 of the cylinder piston 4.
  • the nut 7 has on its inner wall an annular groove 43 for receiving a sealing ring 44, preferably an O-ring, which bears sealingly against a cylindrical portion 73 of the cylinder piston 4.
  • a sealing ring 44 preferably an O-ring
  • the pressure chamber 24 is also connected to the vent screw 27, which is provided according to the previous embodiment with the protective cap 28.
  • the guide plate 36 is provided with a Nuten adjustment 45, in which the housing 5 engages with a projection 46.
  • the groove guide 45 serves as an anti-rotation device for the housing. 5
  • the guide carriage 42 is provided on the side facing away from the clamping device side of the guide plate 36.
  • the cylinder piston 4 protrudes through the longitudinal slot 3 of the guide plate 36, which extends in the vertical direction and is open to the bottom. After releasing the clamping, thus the guide plate 36 and thus the Jointerkassette 35 can be relative to Move clamping device and guide carriage 42 and remove from the jointing device.
  • the receiving plate 49 engages with a shoulder 54 at a distance from the upper end of the guide plate 36 (FIG. Fig. 5 ).
  • the heel 54 connects a plate part 55 having the transverse slots 51 to a plate-shaped support part 56 against which the (not shown) joint stones abut in the clamping position.
  • the clamping claws 50 clamp the joint stones in a known manner against the support member 56th
  • the clamping claws 50 are clamped by means of clamping nuts 57 against the joint stones.
  • the nuts 57 are seated on threaded bolts 58, which are provided in the region of the shoulder 54 on the receiving plate 49.
  • the pressure medium is introduced into the pressure chamber 24 via the connection 25.
  • the housing 5 is retracted against the force of the disc spring assembly 14, so that the deadlock of the guide plate 36 is canceled and air between the nut 7 and guide plate 36 and guide plate 36 and guide carriage 42 results.
  • the Jointerkassette 35 can be moved or removed in the radial direction relative to the clamping device and the guide carriage 42 in the desired position.
  • the plate spring assembly 14 the nut 7 moves with the housing 5 back into the clamping position.
  • Fig. 7 shows the fluid plan for the described clamping devices. Shown is the housing 5 with the pressure chamber 24 and the plate spring assembly 14. The operation of the clamping device via a switching valve 60 which can be switched into the two switching positions a and b. The switching valve 60 can be operated electrically, but also by hand. In Fig. 7 a hand-operated switching valve 60 is shown, which can be switched with a switch 61.
  • the switching valve 60 has two pneumatic connections and is connected at the input to a compressed air source P and at the output via a line 62 to a pneumatic cylinder 63. In the illustrated switching position b of the pneumatic cylinder 63 is disconnected from the pressure port P, that is, without pressure.
  • a hydraulic cylinder 66 is connected, in the cylinder housing 67, a piston 68 is arranged, which sits on the piston rod 65 '.
  • the piston rods 65, 65 'of the pneumatic cylinder and the hydraulic cylinder 66 abut each other, but may also be interconnected or formed in one piece.
  • a cylinder chamber 69 of the hydraulic cylinder 66 is connected via a hydraulic line 70 to the pressure chamber 24 of the clamping device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
EP18000449.1A 2017-05-17 2018-05-14 Dispositif de serrage pour au moins un composant à serrer Withdrawn EP3403766A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017004993.9A DE102017004993A1 (de) 2017-05-17 2017-05-17 Klemmeinrichtung für wenigstens ein zu klemmendes Bauteil, vorzugsweise einer Holzbearbeitungsmaschine

Publications (1)

Publication Number Publication Date
EP3403766A1 true EP3403766A1 (fr) 2018-11-21

Family

ID=62167086

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18000449.1A Withdrawn EP3403766A1 (fr) 2017-05-17 2018-05-14 Dispositif de serrage pour au moins un composant à serrer

Country Status (2)

Country Link
EP (1) EP3403766A1 (fr)
DE (1) DE102017004993A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110421199A (zh) * 2019-08-07 2019-11-08 烟台中宇航空液压有限公司 阀体端面钻工模具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982003669A1 (fr) * 1981-04-13 1982-10-28 Olof Olofsson Element de serrage
EP0913587A2 (fr) * 1997-10-31 1999-05-06 Kabushiki Kaisha Kosmek Dispositif multiplicateur de force

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2009991C3 (de) * 1970-03-04 1974-06-27 Moskowskij Sawod Awtomatitscheskich Linij Stankolinia, Moskau Hydraulischer Kraftzylinder
DE3639170C2 (de) * 1986-11-15 1995-03-16 Optima Spanntechnik Gmbh Spannzylinder
DE3902918C1 (en) * 1989-02-01 1990-04-26 Berg & Co Gmbh, 4800 Bielefeld, De Clamping device for tightly clamping tools

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982003669A1 (fr) * 1981-04-13 1982-10-28 Olof Olofsson Element de serrage
EP0913587A2 (fr) * 1997-10-31 1999-05-06 Kabushiki Kaisha Kosmek Dispositif multiplicateur de force

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110421199A (zh) * 2019-08-07 2019-11-08 烟台中宇航空液压有限公司 阀体端面钻工模具
CN110421199B (zh) * 2019-08-07 2020-11-24 烟台中宇航空液压有限公司 阀体端面钻工模具

Also Published As

Publication number Publication date
DE102017004993A1 (de) 2018-11-22

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