EP4013570A1 - Spannvorrichtung - Google Patents
SpannvorrichtungInfo
- Publication number
- EP4013570A1 EP4013570A1 EP20767954.9A EP20767954A EP4013570A1 EP 4013570 A1 EP4013570 A1 EP 4013570A1 EP 20767954 A EP20767954 A EP 20767954A EP 4013570 A1 EP4013570 A1 EP 4013570A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping device
- spring element
- abutment
- housing
- clamping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- B25B5/02—Clamps 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
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- 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
- B25B5/08—Arrangements for positively actuating jaws using cams
-
- 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
- B25B5/04—Clamps with pivoted 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
-
- 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
- B25B5/08—Arrangements for positively actuating jaws using cams
- B25B5/087—Arrangements for positively actuating jaws using cams actuated by a hydraulic or pneumatic piston
Definitions
- the invention relates to a clamping device according to the upper part of claim 1.
- a clamping device of the type mentioned is known from the patent document DE 10 2016 200 180 A1.
- This consists of a tensioning member movably mounted in a base body, a linearly movable actuator that is operatively connected to the tensioning member, a spring element that is operatively connected to the actuator and a rotatably mounted actuating element that is operatively connected to the spring element.
- the spring element is designed as a tension spring (there reference number 24) because of the grooved plate (there reference number 15-19).
- the invention is based on the object of improving a clamping device of the type mentioned at the beginning.
- the operational safety of such a tensioning device should be improved in the event of a break in the spring element, which cannot be ruled out in principle.
- the spring element is designed as a compression spring which can be compressed with the actuating element during tensioning.
- the solution according to the invention is characterized in that a compression spring is used instead of the tension spring. This has far-reaching consequences and advantages - especially in connection with other training courses - which will be discussed in more detail below. 5
- FIG. 1 shows in section the clamping device according to the invention in the open position
- FIG. 2 shows, in section, the clamping device according to FIG. 1 on the way into the closed position
- FIG. 3 shows, in section, the clamping device according to FIG. 1 in the closed position with a heavily loaded spring element
- FIG. 4 shows, in section, the tensioning device according to FIG. 1 in the closed position with a lightly loaded spring element
- FIG. 5 shows, in section from the side, the clamping device according to FIG. 4;
- FIG. 6 shows, in perspective, the clamping device according to FIG. 1 30 in a first view in the closed position
- FIG. 7 shows, in perspective, the clamping device according to FIG. 1 in a second view in the closed position
- FIG. 8 in section, the loaded spring element according to FIG. 4 in a first side view
- FIG. 9 shows in section the loaded spring element according to FIG. 4 5 in a second side view
- FIG. 10 shows a side view of a housing section of the clamping device in which a latching mechanism is arranged
- FIG. 11 shows the housing section receiving the locking mechanism 10 as a transparent representation
- FIG. 12 shows the locking mechanism as an exploded view
- FIG. 13 shows in section the housing section which receives a movement mechanism and the latching mechanism and on which the actuating element is arranged.
- the clamping device shown in the figures consists in a known manner of a clamping member 2 movably mounted in a base body 1, a linearly movable actuator 3 operatively connected to the clamping member 2, a spring element 4 operatively connected to the actuator 3 and one to the spring element 4 Actively connected, rotatably mounted actuating element 5, see in particular FIG. 1.
- the clamping member 2 is designed as 25 clamping hooks and a counter bearing 13 is provided on the base body 1 for this clamping hook. It is also preferred that a centering mandrel 16 is provided on the base body 1 and the clamping member 2 is arranged at least partially in this centering mandrel 16. 30th It is now essential for the tensioning device according to the invention that the spring element 4 is designed as a compression spring which can be compressed with the actuating element 5 during tensioning.
- the tensioning member 2 is arranged pivotably and 5 displaceably in the base body 1. It is also preferred that a guide slot 14 is provided on the end of the tensioning member 2 on the actuator side and a pin 15 engaging in the guide slot 14 on the end of the actuator 3 on the tendon side.
- a curved guide 17 is preferably provided on the clamping member 210 and a guide pin 18 engaging in the curved guide 17 is provided on the base body 1, see in particular FIG. 2 in this regard.
- an abutment element 6 for the spring element 4 to be arranged on the end of the actuator 3 facing away from the clamping element 2.
- the spring element 4 is preferably designed as a helical compression spring.
- the abutment element 6 is preferably designed in the shape of a plate.
- the actuator 3 is arranged centrally and the spring element 4 is arranged concentrically to the actuator 3 on the abutment element 6.
- the spring element 4 is preferably designed to be supported on the one hand on the actuator 3 and on the other hand on an abutment 7 that is operatively connected to the actuating element 5.
- the abutment 7 is arranged at one end of a preferably cup-shaped housing 8 and the actuating element 5 is operatively connected to the other end of the housing 8. It is also preferred that the abutment 7 is designed like a cover for the preferably cup-shaped housing 8, with a through hole 19 for the actuator 3 being provided on the cover. In addition, it is preferred that the The bearing element 6 for forming a damper is designed to be mounted in the housing 8 in the manner of a piston and / or that the housing 8 is designed to be displaceably mounted in the base body 1.
- a channel 9 is arranged on the abutment element 6, which is otherwise sealed in the housing 8, see in particular Figure 8.
- a check valve 10 is preferably arranged on the abutment element 6, which is otherwise sealed in the housing 8 apart from the channel 9 , see in particular FIG. 9.
- both the channel 9 and the check valve 10 are preferably provided for the fluidic connection of two spaces 8.1, 8.2 arranged on both sides of the abutment element 6.
- the housing 8, in particular the spaces 8.1, 8.2, is preferably filled 15 with a damping medium, preferably oil.
- the channel 9 has dimensions that prevent rapid expansion of the spring element 4 and / or that the check valve 10 is permeable in the event of a movement of the abutment element 6 relative to the abutment 7 leading to compression of the spring element 4 and to an expansion in the event of a movement of the spring element 4 leading movement of the abutment element 6 relative to the abutment 7 is sealing.
- a rotating shaft 11 rotatably mounted on the base body 1 is preferably provided for the rotatable mounting of the actuating element 5.
- a lever arm 20 is arranged on the rotary shaft 11.
- an intermediate member 21 is articulated on the lever arm 20.
- the intermediate member 21 is preferably designed in an articulated manner 30 connected to the housing 8.
- the rotating shaft 11, the The lever arm 20 and the intermediate member 21 preferably form a movement mechanism 23 (see FIG. 13).
- the intermediate member 21 is U-shaped and encompasses the rotary shaft 11 in the clamping position. 5 Likewise, the intermediate member 21 is preferably designed as part of a toggle lever device.
- a latching mechanism 12 holding the clamping device in the open position 10 is preferably provided on the rotary shaft 11 mounted in the housing section 1.1.
- the locking mechanism 12 consists of a plate 12.1 attached to the base body 1 with a locking projection 12.2, a ball 12.3 cooperating with the locking projection 12.2, a bearing plate 12.4 for the ball 12.3, which is displaceably but non-rotatably connected to the rotary shaft 11, and a Ball 12.3 is formed against the plate 12.1 pressing spring device.
- the spring device is formed from at least one plate spring 12.5, see in particular FIGS. 10 to 13.
- at least one latching projection 12.2 and at least one ball 12.3 be provided.
- two or particularly preferably even three latching projections 12.2 or balls 12.3 are provided distributed over the circumference.
- an end position interrogation device 22 which interacts with the actuator 3 and preferably operates inductively, is preferably arranged on the base body 1.
- the clamping device is in an open position (see Figure 1).
- the clamping member 2 is arranged completely in the centering mandrel 16 and the lever arm 20 is in an upper or lateral position.
- the clamping device is kept open, since the ball 12.3 of the locking mechanism 12 is blocked by the locking projection 12.2.
- An undesired independent movement of the actuating element 5 and thus an adjustment of the intermediate member 21 is thus excluded.
- the spring force exerted by the spring element 4 is greater when clamping thicker workpieces than with thinner ones, since the spring element 4 is compressed more strongly here (compare FIGS. 3 and 4).
- the flexible compression of the spring element 4 allows (which is very advantageous) a certain tolerance equal to 30 in the thickness of the workpiece while still having sufficient clamping force for very thin workpieces.
- Another advantage of the tensioning device according to the invention is that by using a compression spring as the spring element 4, with the same (high) tensioning force, a smaller installation space is required for the spring element than in comparable designs with a tension spring.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Jigs For Machine Tools (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019121860.8A DE102019121860A1 (de) | 2019-08-14 | 2019-08-14 | Spannvorrichtung |
PCT/DE2020/100690 WO2021027993A1 (de) | 2019-08-14 | 2020-08-05 | Spannvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4013570A1 true EP4013570A1 (de) | 2022-06-22 |
EP4013570B1 EP4013570B1 (de) | 2024-10-23 |
Family
ID=72422033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20767954.9A Active EP4013570B1 (de) | 2019-08-14 | 2020-08-05 | Spannvorrichtung |
Country Status (7)
Country | Link |
---|---|
US (1) | US11850713B2 (de) |
EP (1) | EP4013570B1 (de) |
JP (1) | JP7642612B2 (de) |
CN (1) | CN114401824B (de) |
DE (1) | DE102019121860A1 (de) |
ES (1) | ES3000396T3 (de) |
WO (1) | WO2021027993A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019121860A1 (de) * | 2019-08-14 | 2021-02-18 | Destaco Europe Gmbh | Spannvorrichtung |
CN117464711B (zh) * | 2023-12-27 | 2024-03-29 | 苏州希瑞格机器人科技有限公司 | 一种气动夹取拨指 |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT272246B (de) * | 1966-08-31 | 1969-06-25 | Voest Ag | Puffervorrichtung zum Abfangen von bewegtem, insbesondere rollendem Walzgut |
DE3604995C1 (de) * | 1986-02-17 | 1987-05-21 | Sta Co Mettallerzeugnisse Gmbh | Kniehebelspannvorrichtung |
US5165670A (en) * | 1991-10-16 | 1992-11-24 | Btm Corporation | Retracting power clamp |
DE9319106U1 (de) * | 1993-12-13 | 1994-02-24 | F. Hesterberg & Söhne GmbH & Co KG, 58256 Ennepetal | Riegelspannverschluß zum Verriegeln eines beweglichen Teils gegenüber einem festen Teil |
DE29713607U1 (de) * | 1997-07-31 | 1997-09-25 | DE-STA-CO Metallerzeugnisse GmbH, 61449 Steinbach | Doppelwirkender Stellzylinder |
JPH1190839A (ja) * | 1997-09-12 | 1999-04-06 | Imazaike Seiko Kk | クランプ装置 |
DE19751950C1 (de) * | 1997-11-24 | 1999-03-04 | Isi International Sa | Kniehebelspannvorrichtung, insbesondere zur Verwendung im Karosseriebau der Kfz-Industrie |
US6059277A (en) * | 1998-05-05 | 2000-05-09 | Btm Corporation | Retracting power clamp |
FR2781400B1 (fr) * | 1998-07-27 | 2000-09-29 | Genus Technologies | Dispositif de centrage et de serrage, notamment de pieces pour carrosserie automobile |
TW487617B (en) * | 2000-08-04 | 2002-05-21 | Smc Kk | Clamp apparatus |
JP3854051B2 (ja) * | 2000-09-19 | 2006-12-06 | トヨタ自動車株式会社 | クランプ装置 |
JP3707050B2 (ja) * | 2001-04-12 | 2005-10-19 | ダイハツ工業株式会社 | クランプ装置 |
DE10135280A1 (de) * | 2001-07-19 | 2003-02-06 | Rudolf Kohlert | Spannelement zum positionsflexiblen Spannen von Werkstücken |
DE10238815B3 (de) * | 2002-08-23 | 2004-02-26 | De-Sta-Co Metallerzeugnisse Gmbh | Zentrierspanner |
FR2853847B1 (fr) * | 2003-04-17 | 2006-05-05 | Genus Technologies | Dispositif de blocage en position |
ITMI20031519A1 (it) * | 2003-07-24 | 2005-01-25 | Univer Spa | Dispositivo di aggancio a ginocchiera per pezzi da lavorare con autocompensazione |
US7144002B2 (en) * | 2004-06-08 | 2006-12-05 | Smc Corporation | Electric locking device |
ITMI20050087U1 (it) * | 2005-03-17 | 2006-09-18 | Univer Spa | Dispositivo di bloccaggio per pezzi da lavorare con organo di bloccaggio a forma di gancio |
JP4696705B2 (ja) * | 2005-06-08 | 2011-06-08 | 日産自動車株式会社 | ロケートクランプ装置 |
JP4787721B2 (ja) * | 2006-11-02 | 2011-10-05 | シーケーディ株式会社 | 位置決めクランプ装置 |
JP5100235B2 (ja) * | 2007-07-27 | 2012-12-19 | 株式会社コガネイ | 電動式位置決めクランプ装置 |
JP4699433B2 (ja) * | 2007-10-11 | 2011-06-08 | 株式会社コガネイ | 位置決めクランプ装置 |
JP5418997B2 (ja) * | 2008-01-22 | 2014-02-19 | Smc株式会社 | クランプ装置 |
DE102009040932A1 (de) * | 2009-09-11 | 2011-03-24 | De-Sta-Co Europe Gmbh | Spannvorrichtung |
US8459626B2 (en) * | 2010-05-28 | 2013-06-11 | Btm Corporation | Pin clamp |
DE102011018987A1 (de) * | 2011-04-28 | 2012-10-31 | De-Sta-Co Europe Gmbh | Spannvorrichtung |
DE102015112686A1 (de) * | 2015-08-03 | 2017-02-09 | De-Sta-Co Europe Gmbh | Zentrierspannvorrichtung |
DE202015008208U1 (de) * | 2015-12-01 | 2016-01-11 | Olaf Und André Tünkers Gbr (Vertretungsberechtigter Gesellschafter: Dipl.-Ing. Olaf Tünkers, 40885 Ratingen) | Druckmittelbetätigbare kombinierte Zentrier- und Spannvorrichtung für blechförmige Bauteile, insbesondere zur Verwendung im Karosseriebau der Kfz-Industrie |
DE102016200180A1 (de) * | 2016-01-11 | 2017-08-17 | Volkswagen Aktiengesellschaft | Einstellbare Spannvorrichtung zur Aufnahme von flächigen Werkstücken |
US20180015580A1 (en) * | 2016-07-15 | 2018-01-18 | Tech Rim Standards, LLC | Adjustable pin clamping device |
DE202018103239U1 (de) * | 2018-06-08 | 2018-07-04 | Hi-Max Innovation Co., Ltd. | Druckeinstellvorrichtung für Schnellspanner |
DE102019121860A1 (de) * | 2019-08-14 | 2021-02-18 | Destaco Europe Gmbh | Spannvorrichtung |
-
2019
- 2019-08-14 DE DE102019121860.8A patent/DE102019121860A1/de active Pending
-
2020
- 2020-08-05 ES ES20767954T patent/ES3000396T3/es active Active
- 2020-08-05 EP EP20767954.9A patent/EP4013570B1/de active Active
- 2020-08-05 JP JP2022507675A patent/JP7642612B2/ja active Active
- 2020-08-05 CN CN202080064775.9A patent/CN114401824B/zh active Active
- 2020-08-05 WO PCT/DE2020/100690 patent/WO2021027993A1/de unknown
- 2020-08-05 US US17/634,965 patent/US11850713B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20220379438A1 (en) | 2022-12-01 |
JP7642612B2 (ja) | 2025-03-10 |
EP4013570B1 (de) | 2024-10-23 |
ES3000396T3 (en) | 2025-02-28 |
CN114401824A (zh) | 2022-04-26 |
WO2021027993A1 (de) | 2021-02-18 |
JP2022544158A (ja) | 2022-10-17 |
CN114401824B (zh) | 2024-04-02 |
US11850713B2 (en) | 2023-12-26 |
DE102019121860A1 (de) | 2021-02-18 |
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