WO2006056422A1 - Spannelement für werkstücke, insbesondere schraubstock - Google Patents
Spannelement für werkstücke, insbesondere schraubstock Download PDFInfo
- Publication number
- WO2006056422A1 WO2006056422A1 PCT/EP2005/012540 EP2005012540W WO2006056422A1 WO 2006056422 A1 WO2006056422 A1 WO 2006056422A1 EP 2005012540 W EP2005012540 W EP 2005012540W WO 2006056422 A1 WO2006056422 A1 WO 2006056422A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- clamping
- pressure medium
- medium cylinder
- clamping element
- element according
- Prior art date
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
- B25B1/00—Vices
- B25B1/06—Arrangements for positively actuating jaws
- B25B1/18—Arrangements for positively actuating jaws motor driven, e.g. with fluid drive, with or without provision for manual actuation
-
- 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
- B25B1/2431—Construction of the jaws the whole jaw being pivotable around an axis perpendicular to the actioning direction of the vice
- B25B1/2442—Construction of the jaws the whole jaw being pivotable around an axis perpendicular to the actioning direction of the vice around a horizontal axis
-
- 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
- B25B1/2473—Construction of the jaws with pull-down action on the workpiece
Definitions
- the invention relates to a clamping element for workpieces, in particular pag ⁇ stock, with a first clamping jaw and a second clamping jaw, which are mounted on a carriage bed.
- Such clamping elements namely vices, are known in practice as follows.
- the previous vices generate mechanical, hydraulic or pneumatic way a clamping force, which is taken over the object to be clamped, so in general a workpiece from the effective as an abutment jaw ing jaws.
- This results in a bending moment on a slide bed guiding the clamping jaws, which must be absorbed by the rigidity of this slide bed.
- This leads to elastic deformations of the carriage bed, which are at the expense of the machining accuracies.
- For highly accurate workpieces it is therefore necessary in the known vises, the carriage bed getting stiffer and harder to build.
- the problem underlying the invention is to provide a clamping element, in particular a vice, in which a bending moment on the carriage bed is prevented by design.
- the clamping element according to the invention is characterized in that the resultant of the forces acting on the clamping jaws clamping forces of the jaws in the carriage bed einteil ⁇ th forces in the plane of the neutral fiber of the carriage bed.
- the introduction of force into the carriage bed according to the invention can be achieved by supporting the first clamping jaw and / or second clamping jaw on a carriage bed by means of a respective hinge pin, with bores for the hinge pins in a neutral fiber of the carriage bed are arranged.
- the clamping jaws are designed as a one-armed lever or as a two-armed lever, only pressure or tensile forces on the Schlit ⁇ tenbett arise. Accordingly, the actuator exerts tensile or compressive forces on the jaws.
- the clamping jaws are preferably designed as two-armed lever, wherein in each case one lever arm, a clamping surface is associated and the other lever arm acts on a push rod.
- the tensioning device is duplexed onto a side of the neutral fiber opposite the workpiece, while acting on the pushrod instead of the workpiece
- the construction according to the invention also offers a further advantage. Due to the deflection of the carriage bed and also due to the compressive forces on the clamping jaws, the clamping jaws are "tilted outwards" in the case of known clamping elements, which has been compensated in the known clamping elements by relatively complicated measures, so-called low-tensile elements or pull-down jaws Clamping elements, these measures are no longer necessary, especially when the hinge pins are arranged for the clamping jaws so that there is a downward movement component on the clamping surfaces.
- actuator can preferably serve a pressure cylinder.
- a toggle mechanism, spindle drives or other mechanical, hydraulic, pneumatic or magnetic solutions are conceivable.
- the known vices are operated partly via an external Hydraulikver ⁇ supply directly with pressure medium.
- vices are used in which by means of a spindle, a hydraulic piston is actuated.
- the jaw is then assigned a piston of larger diameter zu ⁇ .
- the force exerted by the spindle is amplified in the ratio of the areas of the two pistons and is available as a clamping force.
- Such vices are also referred to as vices with hydraulic shear reinforcement.
- the clamping element according to the invention has to avoid the disadvantage described above for a however also independently conceivable development in addition to a first pressure medium cylinder which actuates one of the two clamping jaws, via a further pressure medium cylinder, which actuates the respective other clamping jaw.
- the second clamping jaw has its own pressure medium supply and in turn develops a clamping force in addition to the clamping force of the first clamping jaw.
- the total clamping force is thus increased by the clamping force available by the second clamping jaw.
- the further pressure medium cylinder is preferably hydraulically or pneumatically coupled to the first pressure medium cylinder. It only needs a single pressure medium supply to be provided. In addition, the same pressure medium pressure results at both pressure medium cylinders. So it is the simplest constructive, if the other pressure medium cylinder and the first pressure medium cylinder are connected to each other via a bypass line. This solution is particularly suitable for vices with hydraulic power amplification, in which the spindle force is converted into the pressure medium pressure for the first and the further pressure medium cylinder. If then the piston surfaces of the first pressure medium cylinder and of the further pressure medium cylinder are identical, the same clamping forces result for both clamping jaws.
- the further pressure cylinder is preferably arranged in a carriage bed of the clamping element.
- sled beds are U-shaped profiles, on the upper sides of the jaws are performed.
- the carriage bed there is sufficient space below the clamping jaws to accommodate the further pressure cylinder, so that the overall size of the clamping element does not change in total.
- FIG. 1 shows a first embodiment of a clamping element, namely a vise, with the inventive features in perspective Darstel ⁇ development
- FIG. 2 shows the vise of FIG. 1 in rear view
- FIG. 3 shows the vise of FIG. 1 in side view
- FIG. 4 shows the vise of FIG. 1 in plan view
- FIG. 5 shows the vice according to FIG. 1 in a sectional view in the plane V-V according to FIG. 2, FIG.
- Fig. 6 shows a second embodiment of a clamping element, namely a
- Fig. 7 shows another embodiment of a clamping element, namely a vise, with the features of the invention in longitudinal section.
- a vise 10 1 to 5 is a vise 10.
- This vise 10 has a carriage bed 11 and a "fixed” clamping jaw 12 and a displaceable clamping jaw 13.
- the "fixed” clamping jaw 12 is only there insofar as it is not confirmed when clamping a workpiece directly over a longer way, which will become apparent from the following description.
- the jaw 13 When the jaw 13 is a jaw with hydraulic power boost.
- the clamping jaw 13 is actuated via a spindle 14 by means of the spindle 14.
- the clamping jaw 13 is moved on to the workpiece until it comes to bear against the workpiece.
- the spindle 14 only exerts a pressure on a hydraulic fluid in a hydraulic cylinder 15, which in turn acts on a further piston surface within the clamping jaw 13 in a manner known per se.
- the jaw 13 has a connection option for an external hydraulic line. This is already the case with the prior art in order to be able to connect the present clamping jaw 13, if necessary, to an external hydraulic line.
- a bypass line 17 At this hydraulic connection via a hydraulic fitting 16, a bypass line 17 is connected.
- a further pressure medium cylinder 18 is provided below the clamping jaw 13, which is acted upon by the pressure medium via the bypass line 17, which is connected to the further pressure medium cylinder 18 via a further hydraulic screw connection 19.
- the clamping jaw 13 is designed as a two-armed lever and held by a Ge steering pins 20 on the carriage bed 11.
- the upper lever arm of Spannba ⁇ bridge 13 is connected to the pressure medium cylinder 15 and the spindle 14 and a pressure plate 21 for clamping the workpiece.
- Clamping jaw 13 is a cylinder bore 22 of the further pressure medium cylinder 18 is provided, in which a piston 23 is guided.
- the second clamping jaw 12 is also designed as a two-armed lever, wherein the upper lever arm carries a pressure plate 24 for clamping the workpiece.
- the clamping jaw 12 is in turn pivotally connected to the Schlit ⁇ tenbett 11 via a hinge pin 25.
- a push rod 27 is attached via a hinge pin 26, which in turn is actuated by the piston 23 of the further pressure medium cylinder 18.
- holes 29 are provided in the carriage bed 11 in a conventional manner. Accordingly, 27 holes 30 are also provided in the push rod, so that in each case by repositioning the hinge pin 25 and 26, the clamping jaw 12 is offset and so the span of the vise can be adjusted. Further, in the carriage bed 11, one of the number of bores 30 in the push rod 27 ent speaking number of holes 31 is provided whose diameter is dimensioned to a sufficient extent greater than the diameter of the Gelenkbol ⁇ zens 26, so that this upon actuation of the push rod 27th can move freely in the respective bores 31. Alternatively, a slot may be provided in this area in the carriage bed 11.
- the hinge pins 25 and 26 are arranged farther outward than the clamping surfaces 21 and 24. When clamping the workpiece, therefore, movement components are produced on the clamping surfaces 21 and 24 on the carriage bed 11, which exert a pull-down effect on the workpiece to be clamped ,
- the vise 10 described so far works as follows.
- the pressure plate 21 is first brought into contact with the workpiece by actuating the spindle 14. Then, the first hydraulic piston 15 is effective and effected
- the hydraulic pressure generated in the first pressure medium cylinder 15 is guided via the bypass line 17 to the further pressure medium cylinder 18, so that the push rod 27 actuates the second clamping jaw 12 via the steering bolt 26.
- the pressure plate 24 also tilts against the workpiece and in turn unfolds a pressure force or clamping force on the workpiece determined by the pressure in the pressure medium cylinder 18 and the piston surface of the piston 23 and the ratio of the lever arms to the clamping jaw 12.
- a further special feature of the vise shown is that the bores 29 are arranged in the neutral fiber 32 (relative to the area moment of inertia) of the carriage bed 11. As a result, no bending forces are introduced into the carriage bed 11. Rather, the carriage bed 11 is charged only to train.
- the clamping surfaces 21, 24 on the one hand and the push rod 27 on the other hand are arranged opposite sides of the neutral fiber 32.
- the clamping force can also be applied via an external hydraulic supply.
- an additional connection for the external hydraulic supply is provided at a suitable location, for example on the bypass line 17.
- Fig. 6 shows an embodiment of a vise 33, in which the clamping jaws 34 and 35 are formed as a one-armed lever and via joints 36, 37 are mounted on the carriage bed 11.
- the joints 36, 37 are again arranged in the neutral fiber 32.
- the clamping jaws 34, 35 are actuated via tie rods 38 running parallel to the neutral fiber 32 and which are pulled together by means of a pressure medium cylinder 39.
- the vise 40 shown in Fig. 7 with two jaws 41, 42 The one jaw 41 is articulated on the carriage bed 11, wherein the joint 43 is again in the neutral fiber 32 of the carriage bed 11.
- the other clamping jaw 42 is mounted on the carriage bed 11 via a pressure medium cylinder 44, the actuation direction of which is arranged in the neutral fiber 32 and which acts on the clamping jaw 42 by means of a joint 45, which again lies in the neutral fiber 32.
- the clamping jaws 41, 42 are designed as two-armed levers, wherein each of the one lever arm, the clamping surface 21, 24 zuge ⁇ is assigned. At the other lever arm, the clamping jaws 41, 42 are coupled to one another via a push rod 46 extending parallel to the neutral fiber 32.
- the push rod 46 is, as in the embodiment according to FIGS. 1 to 5, on the clamping surfaces 21, 24 opposite side of the neutra ⁇ len fiber 32nd
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
- Gripping On Spindles (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/718,062 US8167289B2 (en) | 2004-11-24 | 2005-11-23 | Clamping element for workpieces, in particular a vice |
DK05817441.8T DK1824641T3 (da) | 2004-11-24 | 2005-11-23 | Spændeelement til arbejdsemner, navnlig en skruestik |
CA2570084A CA2570084C (en) | 2004-11-24 | 2005-11-23 | Clamping element for workpieces, especially vice |
EP05817441A EP1824641B1 (de) | 2004-11-24 | 2005-11-23 | Spannelement für werkstücke, insbesondere schraubstock |
AT05817441T ATE494105T1 (de) | 2004-11-24 | 2005-11-23 | Spannelement für werkstücke, insbesondere schraubstock |
PL05817441T PL1824641T3 (pl) | 2004-11-24 | 2005-11-23 | Element mocujący do części obrabianych, zwłaszcza imadło |
JP2007541835A JP4749427B2 (ja) | 2004-11-24 | 2005-11-23 | ワーク用クランプ部品、特にバイス |
DE502005010815T DE502005010815D1 (de) | 2004-11-24 | 2005-11-23 | Spannelement für werkstücke, insbesondere schraubstock |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004056827A DE102004056827A1 (de) | 2004-11-24 | 2004-11-24 | Spannelement für Werkstücke, insbesondere Schraubstock |
DE102004056827.8 | 2004-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006056422A1 true WO2006056422A1 (de) | 2006-06-01 |
Family
ID=35911238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/012540 WO2006056422A1 (de) | 2004-11-24 | 2005-11-23 | Spannelement für werkstücke, insbesondere schraubstock |
Country Status (10)
Country | Link |
---|---|
US (1) | US8167289B2 (de) |
EP (1) | EP1824641B1 (de) |
JP (1) | JP4749427B2 (de) |
AT (1) | ATE494105T1 (de) |
CA (1) | CA2570084C (de) |
DE (2) | DE102004056827A1 (de) |
DK (1) | DK1824641T3 (de) |
ES (1) | ES2358038T3 (de) |
PL (1) | PL1824641T3 (de) |
WO (1) | WO2006056422A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202007012219U1 (de) | 2007-08-31 | 2007-12-13 | Hohenstein Vorrichtungsbau Und Spannsysteme Gmbh | Hydraulisches Spannbackensystem |
DE102010035633B3 (de) * | 2010-08-27 | 2011-11-24 | Hohenstein Vorrichtungsbau Und Spannsysteme Gmbh | Hydraulische Mehrteile-Spannvorrichtung |
CN102380832B (zh) * | 2010-08-31 | 2013-10-09 | 鸿富锦精密工业(深圳)有限公司 | 滑动定位机构 |
TWI409141B (zh) * | 2012-07-20 | 2013-09-21 | Lin Tseh Pei | 虎鉗活動顎快拆裝置 |
TWI576207B (zh) * | 2016-04-21 | 2017-04-01 | Floating air pressure angle solid double clamp vise structure | |
TWI651167B (zh) * | 2018-03-23 | 2019-02-21 | 陳逢霖 | 氣壓式虎鉗 |
CN111037250A (zh) * | 2019-12-03 | 2020-04-21 | 中山市鸿勋机械有限公司 | 应用在自动扶梯梯级自动装配线的梯级夹具 |
TWI740558B (zh) * | 2020-06-30 | 2021-09-21 | 銘唯精密企業有限公司 | 中心虎鉗結構 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1181398A (en) * | 1967-11-01 | 1970-02-18 | Kenneth Reginald Beetlestone | A New or Improved Vice |
DE3227964A1 (de) * | 1982-07-27 | 1984-02-09 | Peddinghaus, Rolf, Dipl.-Ing., 5828 Ennepetal | Parallelschraubstock mit einrichtung zur reduzierung spannkraftbedingter kantenpressungen |
FR2559085A2 (fr) * | 1984-02-02 | 1985-08-09 | Boucher Freres Sarl Ets | Dispositif permettant de maintenir une piece a usiner dans une position determinee par rapport a une machine-outil sur laquelle ce dispositif peut etre fixe |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5828444A (ja) * | 1981-08-11 | 1983-02-19 | Toyoda Autom Loom Works Ltd | クランプ機構 |
JP2548545B2 (ja) * | 1986-09-10 | 1996-10-30 | 津田駒工業株式会社 | 万 力 |
JP2576607B2 (ja) | 1988-12-05 | 1997-01-29 | 株式会社ニコン | 小型のズームレンズ |
JP2576607Y2 (ja) * | 1992-01-07 | 1998-07-16 | 昭和電線電纜株式会社 | 線押さえ装置 |
JP3521783B2 (ja) * | 1999-02-01 | 2004-04-19 | スチールプランテック株式会社 | クランプ装置 |
-
2004
- 2004-11-24 DE DE102004056827A patent/DE102004056827A1/de not_active Withdrawn
-
2005
- 2005-11-23 EP EP05817441A patent/EP1824641B1/de not_active Not-in-force
- 2005-11-23 PL PL05817441T patent/PL1824641T3/pl unknown
- 2005-11-23 DE DE502005010815T patent/DE502005010815D1/de active Active
- 2005-11-23 WO PCT/EP2005/012540 patent/WO2006056422A1/de active Application Filing
- 2005-11-23 CA CA2570084A patent/CA2570084C/en not_active Expired - Fee Related
- 2005-11-23 JP JP2007541835A patent/JP4749427B2/ja not_active Expired - Fee Related
- 2005-11-23 US US11/718,062 patent/US8167289B2/en not_active Expired - Fee Related
- 2005-11-23 DK DK05817441.8T patent/DK1824641T3/da active
- 2005-11-23 ES ES05817441T patent/ES2358038T3/es active Active
- 2005-11-23 AT AT05817441T patent/ATE494105T1/de active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1181398A (en) * | 1967-11-01 | 1970-02-18 | Kenneth Reginald Beetlestone | A New or Improved Vice |
DE3227964A1 (de) * | 1982-07-27 | 1984-02-09 | Peddinghaus, Rolf, Dipl.-Ing., 5828 Ennepetal | Parallelschraubstock mit einrichtung zur reduzierung spannkraftbedingter kantenpressungen |
FR2559085A2 (fr) * | 1984-02-02 | 1985-08-09 | Boucher Freres Sarl Ets | Dispositif permettant de maintenir une piece a usiner dans une position determinee par rapport a une machine-outil sur laquelle ce dispositif peut etre fixe |
Also Published As
Publication number | Publication date |
---|---|
EP1824641B1 (de) | 2011-01-05 |
PL1824641T3 (pl) | 2011-06-30 |
JP2008520445A (ja) | 2008-06-19 |
CA2570084C (en) | 2013-01-15 |
CA2570084A1 (en) | 2006-06-01 |
DE502005010815D1 (de) | 2011-02-17 |
US20090134562A1 (en) | 2009-05-28 |
ATE494105T1 (de) | 2011-01-15 |
DK1824641T3 (da) | 2011-03-28 |
DE102004056827A1 (de) | 2006-06-01 |
US8167289B2 (en) | 2012-05-01 |
JP4749427B2 (ja) | 2011-08-17 |
ES2358038T3 (es) | 2011-05-05 |
EP1824641A1 (de) | 2007-08-29 |
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