CN1287904A - Means for holding steel plate work pieces with each other - Google Patents
Means for holding steel plate work pieces with each other Download PDFInfo
- Publication number
- CN1287904A CN1287904A CN00128738A CN00128738A CN1287904A CN 1287904 A CN1287904 A CN 1287904A CN 00128738 A CN00128738 A CN 00128738A CN 00128738 A CN00128738 A CN 00128738A CN 1287904 A CN1287904 A CN 1287904A
- Authority
- CN
- China
- Prior art keywords
- steel plate
- plate workpiece
- backbar
- clamping device
- single beam
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
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- 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
- B25B11/005—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
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/16—Bands or sheets of indefinite length
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Manipulator (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Means for holding steel plate work pieces (5,8) with each other includes support bars (13,14) which are relatively moveable to clamp body panels, and a positioner device (18) to align the steel plate work pieces (5,8) relative to each other on the bars and in longitudinal bar direction. At least one bar is formed by a number of independently moveable segments (13a-f,14a-f). The individual segments have their own associated drive units (16a-f), to apply a clamping force to an individual segment to clamp the panels. The steel plate work pieces (5,8) can be fixed to the corresponding support bars (13,14) by the vacuum suction device (20) installed on the support beams (13,14).
Description
The present invention relates to the mutual clamping device of steel plate workpiece.
In the occasion of the common processing of carrying out two or more steel plate workpiece, need to use this class clamping device everywhere, for example workpiece is coupled together, perhaps the steel plate workpiece does not interconnect, and only carries out identical process.The present invention is specially adapted to produce by batch.
From clamping devices more known in the state of the art, these clamping devices can clamp two workpiece by the process in two stages.German patent DE 34 43 312C1 disclose the related device that automobile door hinged securement is used, and this device though this clamping force has clamped a fan automobile door, also can carry out position adjustments at first with the fixing workpiece that will connect of low clamping force.After regulating, clamping force rises to a higher level, to guarantee skid-resistant the fixing in the following welding process.But this device of DE 34 43 312 C1 is not suitable for the butt joint of the length of thin-walled steel plate.
In addition, clamping and the laser-beam welding device that known a kind of sheet metal is used from DE 195 41 899A1.When this device, workpiece and to be welded to edge fit owing to pre-clamping force produces distortion.In order to produce straight weld seam in this case, steel plate deformed is delivered on the guide rail of welder, so that reach certain compensation.This method cost is quite big, and clamping device is connected with processing unit (plant).So can not be independent of welder uses.Particularly, when the steel plate workpiece requires straight line to clamp, can not use this clamping device.
So the present invention is a starting point with the applicant's of a kind of clamping device of relating at least two workpiece German patent DE 198 10 968A.In this device, before the steel plate backbar compresses mutually, use hold down gag handle steel plate workpiece predetermined fixed to be clamped mutually on backbar.Under the state of predetermined fixed, can carry out the position correction of steel plate workpiece mutually, so plate can accurately be located mutually.Wherein, hold down gag is made rotatable clip, and this clip also can move up and down when withstanding the steel plate workpiece, after the steel plate workpiece clamps, hold down gag can be amounted to, and this following process to the steel plate workpiece needs, so that can reach position to be processed.But amounting to of hold down gag needs the time, so following process often just begins to carry out with the time of a delay.Because this rotation clip and backbar have been made continuous beam, so when clamping, be difficult to the manufacturing tolerance of compensation steel plate workpiece, thereby for example exist the danger or the workpiece that slide under the effect of deformation state inherent strain, to process for example soldering and welding after the pre-determined bit.
So the objective of the invention is to, a kind of device that the steel plate workpiece clamps is mutually proposed, this device can reach easy and mode of operation and be that next process is carried out the position and clamped accurately fast.
This purpose is to realize by a mutual clamping device of steel plate workpiece, this clamping device have be used for the supporting steel plate workpiece, be arranged to carry out relative motion clamp mutually the backbar of steel plate workpiece and one be used for be bearing on this backbar the steel plate workpiece backbar vertically in the positioner of aligning mutually, wherein but at least one backbar is made of an independent beam section of arranging independently moving, these independent beam sections are furnished with the transmission device of oneself, clamp the steel plate workpiece so that a clamping force is affacted corresponding beam section separately.
Can compensate the manufacturing tolerance of steel plate workpiece well by the segmentation of backbar, so just can carry out the position according to the profile of the requirement that is not subjected to the straight line restriction docks accurately. and therefore avoided and the error that requires profile, used thereby can make this clamping device be independent of next process.
According to a kind of favourable structure of this clamping device, make the mutual convergence of steel plate workpiece and/or make backbar that the steel plate workpiece clamps mutually can perpendicular to backbar vertically carry out relative motion, thereby reached simple especially clamping device structure.
A propulsion plant preferably is set realizes the mutual convergence of backbar.The having only a position of very little gap size apart or at first proceed in the position that the steel plate workpiece presses close to mutually with a low pre-clamping force of backbar near at first proceeding to the steel plate workpiece.Like this, clamping device just can be closed rapidly.Before the real firm grip of steel plate workpiece, these steel plate workpiece also can accurately be located mutually, thereby improve clamping accuracy.The near position of steel plate workpiece can be with small and exquisite orientation tool.The error that can avoid feed motion to cause like this.
According to another favourable structure of clamping device, being provided with one can be perpendicular to the slide rail of backbar motion, and this slide rail is connected with propulsion plant and is driven by this propulsion plant.On this slide rail, arrange a backbar that constitutes by independent beam section and the corresponding transmission device that is used for promoting independent beam section, like this, the whole independent beam sections that can reach on the one hand a backbar are close to another root backbar rapidly, can realize the independent, piecemeal of steel plate workpiece on the other hand thereby are accurate clampings.
In the simple especially structure of a kind of structure, be provided with the backbar that two longitudinal edges are arranged side by side.In order to reach best being adjacent to, backbar is simulated corresponding steel plate workpiece that is is had corresponding curvature in case of necessity.
In the further developing of the thinking of the simple structure of a kind of technology, the best direction of motion fixed and arranged that clamps with respect to the steel plate workpiece of one of backbar.Like this, clamping motion is undertaken by remaining backbar.
According to another favourable structure of clamping device, whole backbars all segmentation constitute, thereby can reach the full-size and the best clamping of positioning accuracy.But the manufacturing tolerance The optimal compensation of steel plate workpiece.
The single beam section of a backbar especially adjacent layout that preferably directly is arranged side by side.Like this, can realize with clearly defined objective and accurate the clamping along whole bonding length.
According to a favourable structure of clamping device, backbar or its single beam Duan Zaiqi be close to the steel plate workpiece regional simulation the profile of this steel plate workpiece. so just can be issued to the large-area applying between backbar and the corresponding steel plate in quite little unit are load situation and reach the good introducing of clamping force thus.
Another favourable structure according to clamping device, the single beam section of a backbar make chair shape and have one with the consistent outline edge of profile of waiting to be bearing in one section of steel plate workpiece on this backbar, wherein this outline edge is surrounded a groove at least in part, and this groove is positioned at the outside of area section to be clamped mutually.Single beam section connects the flexibility that the weight that is reduced has been improved single beam section in this way.
According to the favourable structure of another kind, the steel plate workpiece is fixed on the corresponding backbar being provided with vacuum suction apparatus on the backbar.Thereby simplified the structure of clamping device widely.Particularly therefore and can be without hold down gag.The pinch zones of steel plate workpiece keeps accessibility easily.After applying whole clamping forces, can begin following one manufacturing procedure.
According to a particularly advantageous structure of this vacuum suction apparatus, the suction that is applied by this vacuum suction apparatus can be adjusted to such level at least in short-term, promptly the steel plate workpiece by sticking to this backbar, but still removable.Like this, before applying whole clamping forces, make the accurate location of steel plate workpiece become easy.
The vacuum suction apparatus of backbar preferably has many suction holes, and these suction holes are arranged on the single beam section, so just can carry out single location on single beam section.When needed, for example, can eliminate the suction at this place in order to proofread and correct at an enterprising line position of single beam section.
In a particularly advantageous structural shape of structure, the vacuum suction apparatus of backbar has many small suckers, and they are arranged in the groove of single beam section, to save the space.
According to another favourable structure of clamping device, positioner make backbar vertically in can carry out controlled motion and can mesh with at least one of steel plate workpiece so that this steel plate workpiece is positioned in it is vertical.Wherein, move according to the signal from positional detecting device, these sniffers are used for surveying the position of definite steel plate workpiece each point, so that produce corresponding signal according to the position or with the error of calibration value.
For moving fast and effectively of single beam section, the transmission device of these beam sections is made the straight line transmission.Wherein, the transmission device of single beam section preferably can their motion of single control, so that realize the with clearly defined objective accurate clamping under the situation of the form tolerance of considering the steel plate workpiece in case of necessity thus.
Below in conjunction with an embodiment shown in the drawings the present invention is described.Accompanying drawing is represented:
Two steel plate workpiece of Fig. 1 clamp the side view of the clamping device of usefulness;
The vertical view of Fig. 2 Fig. 1 clamping device;
The section of the clamping device that Fig. 3 cuts open from a plane that is parallel to Fig. 1 and illustrates the plane;
Fig. 4 Fig. 1 clamping device is arranged on the turntable;
Fig. 5 Fig. 1 clamping device is arranged on the rotary table.
Embodiment shown in Fig. 1 to 3 represents that Steel Thin- Wall plate 5,8 clamps a kind of clamping device 1 of usefulness, and this steel plateelement is made the automobile trunk lid.
Shown in Figure 4 and 5, clamping device 1 can be arranged on a turntable 2 or the rotary table 4.Wherein also can on a workbench 2,4, arrange a plurality of clamping devices 1.
As shown in Figure 1, this clamping device has two backbars 13,14 that are used for supporting a steel plateelement 5,8 respectively.But also can on a backbar, arrange a plurality of independent steel plateelements in principle.
The backbar 13,14 that clamps steel plateelement 5,8 also can carry out relative motion mutually.Wherein, a backbar 13 is fixed, another root or second backbar 14 then can be on first backbar 13 towards it with leave its motion.For this reason, clamping device 1 has a movable slide rail 11, and this slide rail is promoted by a propulsion plant 15, and this thrust unit is made the straight line transmission here.Slide rail 11 is furnished with a block 17, and the maximum of this stop limits propulsion plant 15 in the section direction at the bottom of of first backbar 13 advances.By selecting block 17 minimum range between the backbar 13,14 can be adjusted to the size of a requirement.In addition, block 17 also plays buffer.
As shown in Figure 2, backbar 13,14 can carry out single beam section 13a-f and 14a-f self-movement, bulk by one respectively and constitute, and wherein the single beam section 13a-f of first backbar 13 fixes.The single beam section 14a-f of another root backbar 14 has disposed oneself a transmission device 16a-f respectively, so that a clamping force is applied on the corresponding single beam section 14a-f.The transmission device 16a-f of wherein single beam section makes the straight line transmission, and these straight line transmissions can singlely be controlled when it moves.
In addition, can find out positioner 18 in Fig. 1, this device is used for the vertical Y of copper coin spare 5,8 at backbar 13,14 these backbars of upper edge aimed at.Positioner 18 is positioned at first backbar 13 back with respect to movable second backbar 14.This positioner backbar 13,14 vertically in can carry out controlled motion and with steel plateelement at least one promptly the steel plateelement 5 here mesh, for this reason, be provided with corresponding lug boss 18a.A supporting section 18b is arranged between these lug bosses 18a, be used for supporting the steel plate section that protrudes from first backbar 13.For steel plateelement 5 positions in vertically and aims at mutually in the Y direction for steel plateelement 5,8 at it, positioner 18 is sensor 19a-d acting in conjunction with positional detecting device, and these sensors are used for surveying the position at the steel plate edge of backbar axial end portion scope.By differentiating the signal that produces by these positional detecting devices, in the Y direction, produce a corrected value, positioner moves according to this corrected value then.In principle, these positional detecting devices 19a-d can be used to the site error in definite clamping direction, and these errors can be proofreaied and correct by the corresponding operating of single beam section 14a-f.
Describe single beam section in detail by Fig. 2 and 3 now.As shown in Figure 2, the single beam section 13a-f of corresponding backbar 13,14 and 14a-f are close to and are arranged side by side, thus these single beam sections constituted steel plateelement jointly do not have the especially introducing district of the power of the maximum on steel plateelement 5,8 grip flange 6 and 9 of the large tracts of land conformable region that interrupts basically.Wherein each single beam section is copied one section profile of respective steel plate 5,8, thus not only on grip flange 6,9, reached good applying, and on the stretching face 7,9 of steel plateelement 5,8, also reached good applying.
On backbar 13,14, be provided with vacuum suction apparatus, so that towards corresponding backbar fixation steel plate spare 5,8.The suction that is applied by vacuum suction apparatus can be adjusted to such level at least in short-term, though promptly steel plateelement 5,8 by sticking to backbar 13,14, under the cross force effect, for example still can move by positioner 18.
In this embodiment, the vacuum suction apparatus of backbar has many small suckers 20, and they are arranged in the groove 28 of single beam section and by the single beam section 13a-f of break-through bulk, the vacuum pipe 29 of 14a-f vacuumizes.For this reason.On each single beam section, all be provided with a vacuum and take over 26.In the situation different with accompanying drawing, under the situation of beam section 13a-f or the suitable moulding of 14a-f, vacuum pipe 29 also can lead to outline edge 27 scope and without small sucker.
Briefly explain the method for operating of clamping device 1 below.
To process the steel plate workpiece 5,8 that for example carries out laser braze welding or laser weld below jointly in order to clamp two, at first backbar 13,14 be pushed open certain distance with propulsion plant 15 in its bonding pad.The transmission device 16a-f of best single beam section 14a-f also is located in the position of representing with reference number 23 among Fig. 3 that retracts.In this position, the steel plate workpiece can be put into hand or with manipulator.Wherein, the superimposed pre-determined bit that made things convenient for of backbar and steel plate workpiece.
And then operate actual device and carry out the fixing of steel plate workpiece 5,8, then by means of these small suckers 20 steel plate workpiece 5,8 is drawn onto single beam section 13a-f, on the outline edge 27 of 14a-f.In order to suck the steel plate workpiece, these small suckers are stretched from groove 28 in the sticking state, shown in the dotted line profile and reference number 21 of Fig. 3.In holding the position, these small suckers are pressed in the profile 22, and for this reason, groove 28 is sufficiently large.
Behind the location, on grip flange 6,9, carry out the real clamping of plater spare 5,8.In any case can at first strengthen vacuum for this reason. must firmly shift movable single beam section 14a-f onto another root backbar 13 by transmission device 16a-f.Like this, steel plate workpiece 5,8 just is in the clamped position that Fig. 3 represents with reference number 25, can directly begin a process on this clamped position, and for example steel plate workpiece 5,8 is welded to each other in the bonding pad.Can reopen clamping device 1 by action advances device 15 then, backbar 14 retracts, so can take off the workpiece that processes.
As shown in Figure 4, on a turntable 2, can arrange a plurality of clamping devices 1, shape such as carrousel, this turntable is installed on the basis 3.Clamping device 1 is operated by certain beat then, wherein carries out above-mentioned step on different stations.For example be provided with first station come piece installing, second station do to transmit with, another station is done to clamp and processing with and last station make pickup usefulness.Piece installing and pickup also can be carried out on a unique workpiece.On a rotary table 4, can arrange one or more clamping devices 1 too, as shown in Figure 5.
Claims (17)
1. the device that clamps mutually of steel plate workpiece, has the supporting steel plate of being used for workpiece (5,8), be arranged to carry out the backbar (13 that relative motion clamps this steel plate workpiece mutually, 14) and one be used for being bearing in backbar (13,14) the steel plate workpiece (5 on, 8) this backbar vertically in the positioner (18) of aligning mutually, at least one backbar (13 wherein, 14) but by one row self-movement single beam section (13a-f, 14a-f) constitute, these single beam sections are furnished with the transmission device (16a-f) of oneself, so that a clamping force is affacted corresponding single beam section, and (13a-f 14a-f) clamps the steel plate workpiece.
2. by the mutual clamping device of the steel plate workpiece of claim 1, it is characterized by, make the steel plate workpiece approaching mutually and/or make that backbar (13,14) that the steel plate workpiece clamps can be perpendicular to backbar vertically carry out relative motion.
3. press the mutual clamping device of the steel plate workpiece of claim 1 or 2, it is characterized by, propulsion plant (15) makes backbar (13,14) be close to a position (24) mutually, in this position, steel plate workpiece (5,8) has only very little gap size apart, in this position, these two steel plate workpiece are pressed close in other words with a low pre-clamping force.
4. by the mutual clamping device of the steel plate workpiece of claim 3, it is characterized by: being provided with one can be perpendicular to the slide rail (11) of the lengthwise movement of backbar (13,14), and this slide rail is connected with propulsion plant (15), and by this postponement device driving; On slide rail (11), arranged one by the backbar (14) of single beam section (14a-f) formation and the corresponding transmission device (16a-f) that is used for promoting these single beam sections.
5. by each the mutual clamping device of steel plate workpiece of claim 1 to 4, it is characterized by, be provided with two backbars, these two backbars are arranged side by side with its long limit.
6. by each the mutual clamping device of steel plate workpiece of claim 1 to 5, it is characterized by, backbar (13) is a fixed and arranged with respect to the direction of motion that the steel plate workpiece clamps.
7. by each the mutual clamping device of steel plate workpiece of claim 1 to 6, it is characterized by, all backbars (13,14) are all made segmented.
8. by each the mutual clamping device of steel plate workpiece of claim 1 to 7, it is characterized by, (13a-f's single beam section of a backbar 14a-f) directly is arranged side by side, best adjacent layout.
9. by each the mutual clamping device of steel plate workpiece of claim 1 to 8, it is characterized by, backbar (13,14) or its single beam section (13a-f, 14a-f) at its regional simulation of being close to steel plate workpiece (5,8) in the profile of this steel plate workpiece.
10. by each the mutual clamping device of steel plate workpiece of claim 1 to 9, it is characterized by, the single beam section (13a-f of a backbar, 14a-f) make the chair shape and have one with one section profile (6 waiting to be bearing in a steel plate workpiece on this backbar, 7,9,10) Yi Zhi outline edge (27), this outline edge is surrounded a groove (28) at least in part.
11. by each the mutual clamping device of steel plate workpiece of claim 1 to 10, it is characterized by, steel plate workpiece (5,8) be fixed on the corresponding backbar (13,14) being provided with vacuum suction apparatus on the backbar (13,14).
12. press the mutual clamping device of the steel plate workpiece of claim 11, it is characterized by, the suction that is applied by vacuum suction apparatus can be adjusted to such level at least in short-term, it is steel plate workpiece (5,8) though by sticking to the backbar (13,14), but still can move.
13. the mutual clamping device by claim 11 or 12 steel plate workpiece is characterized by, the vacuum suction apparatus of backbar has many suction holes, they be arranged on single beam section (13a-f, 14a-f) on.
14. press the mutual clamping device of the steel plate workpiece of claim 13, it is characterized by, the vacuum suction apparatus of backbar has many small suckers (20,21,22), and they are arranged in single beam section, and (13a-f is in groove 14a-f) (28).
15. by each the mutual clamping device of steel plate workpiece of claim 1 to 14, it is characterized by, positioner (18) is at backbar (13,14) can carry out in vertical (Y) controlled motion and with at least one of steel plate workpiece be that steel plate workpiece (5) meshes, so that this steel plate workpiece is positioned in it is vertical, wherein move according to signal from positional detecting device (19a-f), these sniffer settings are surveyed the position of definite steel plate workpiece each point, and produce corresponding signal according to this position or with the error of calibration value.
16. by each the mutual clamping device of steel plate workpiece of claim 1 to 15, it is characterized by, (13a-f, transmission device 14a-f) (16a-f) is made the straight line transmission to single beam section.
17. by each the mutual clamping device of steel plate workpiece of claim 1 to 15, it is characterized by, single beam section (13a-f, can control separately in its motion by transmission device 14a-f) (16a-f).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19943916.8 | 1999-09-14 | ||
| DE19943916A DE19943916A1 (en) | 1999-09-14 | 1999-09-14 | Clamping device for e.g. body panels for motor vehicles has relatively moveable clamping bars and positioner unit to align panels relative to each other and to bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1287904A true CN1287904A (en) | 2001-03-21 |
| CN1204999C CN1204999C (en) | 2005-06-08 |
Family
ID=7921922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001287389A Expired - Fee Related CN1204999C (en) | 1999-09-14 | 2000-09-14 | Means for holding steel plate work pieces with each other |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1204999C (en) |
| DE (1) | DE19943916A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554061A (en) * | 2010-12-20 | 2012-07-11 | 通快机床两合公司 | Workpiece holder device for fixing a board-shaped workpiece, in particular a metal sheet to a workpiece movement unit of a machine tool |
| CN104117764A (en) * | 2013-04-25 | 2014-10-29 | 南通中集大型储罐有限公司 | Automatic welding equipment and automatic welding method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10120393B4 (en) * | 2001-04-25 | 2004-04-01 | Hans Niedermayer | Device for positioning two plates |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4343327C2 (en) * | 1993-12-18 | 1997-09-11 | Oxytechnik Ges Systemtech | Device for processing workpiece edges |
| IT1267490B1 (en) * | 1994-11-09 | 1997-02-05 | Sapim Amada Spa | DEVICE FOR GRIPPING AND HANDLING OF PIECES OF MATERIAL IN SHEET AND MANIPULATOR OF PIECES OF MATERIAL IN SHEET INCLUDING THIS |
| DE9419700U1 (en) * | 1994-12-14 | 1995-01-26 | Ima Montagetechnik Gmbh | Machine tool with suction clamps for plate-shaped workpieces |
| DE19810968B4 (en) * | 1998-03-13 | 2010-07-15 | Volkswagen Ag | Clamping device for at least two workpieces with positioning means |
-
1999
- 1999-09-14 DE DE19943916A patent/DE19943916A1/en not_active Withdrawn
-
2000
- 2000-09-14 CN CNB001287389A patent/CN1204999C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554061A (en) * | 2010-12-20 | 2012-07-11 | 通快机床两合公司 | Workpiece holder device for fixing a board-shaped workpiece, in particular a metal sheet to a workpiece movement unit of a machine tool |
| CN102554061B (en) * | 2010-12-20 | 2015-05-20 | 通快机床两合公司 | Workpiece holder device for fixing a board-shaped workpiece, in particular a metal sheet to a workpiece movement unit of a machine tool |
| CN104117764A (en) * | 2013-04-25 | 2014-10-29 | 南通中集大型储罐有限公司 | Automatic welding equipment and automatic welding method |
| CN104117764B (en) * | 2013-04-25 | 2017-08-04 | 南通中集安瑞科食品装备有限公司 | Automatic welding device and automatic soldering method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1204999C (en) | 2005-06-08 |
| DE19943916A1 (en) | 2001-03-15 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050608 Termination date: 20160914 |
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| CF01 | Termination of patent right due to non-payment of annual fee |