CN103785960B - Positioning tool of laser cutting machine and using method thereof - Google Patents
Positioning tool of laser cutting machine and using method thereof Download PDFInfo
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- CN103785960B CN103785960B CN201410052428.0A CN201410052428A CN103785960B CN 103785960 B CN103785960 B CN 103785960B CN 201410052428 A CN201410052428 A CN 201410052428A CN 103785960 B CN103785960 B CN 103785960B
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- cutting machine
- laser cutting
- positioning tool
- pin
- underframe
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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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- 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
- B23K2101/006—Vehicles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
The invention relates to a positioning tool of a laser cutting machine and a using method of the positioning tool. A workbench of the laser cutting machine is provided with a plurality of clamping grooves and a plurality of clamping pins. The positioning tool comprises a bottom frame, at least three supporting plates, at least three pressing devices and at least two moving detection devices. The bottom frame is provided with a plurality of clamping buckles matched with the clamping grooves and a plurality of pin holes matched with the clamping pins. Each pressing device comprises a linear driving device and a pressing plate. Each moving detection device comprises a sleeve, a movable pin and a pressing rod. The using method includes the following steps that first, a workpiece is placed, second, whether the workpiece is the first to be machined or not is judged; third, scribing is carried out for the cutting machine; fourth, manual check is carried out; fifth, the cutting track is adjusted; sixth, checking lines are erased; seventh, detection holes are cut; eighth, the movable pins are checked; ninth, error points are sought for; tenth, the error points are disposed; eleventh, the workpiece is cut. The positioning tool of the laser cutting machine has the advantages of being high in machining efficiency, low in rejection rate and the like.
Description
Technical field
The present invention relates to the actual use field of laser cutting machine, particularly relate to the improvement of its special positioning tool and supporting using method.
Background technology
In the processing of automobile, a lot of sheet stamping part (the representative car door as automobile) does not all adopt full process mould to process, but deliver process portion (being mainly the operation such as trimming, punching) by laser cutting machined, thus shorten construction cycle and the development cost of mould.But laser cutting exists many error components equally, comprise the precision of lathe, the location of frock, the intensity and human factor etc. of part; Like this, also just bring and how stamping forming semi worked pieces is positioned at the problem on the workbench of laser cutting machine fast and accurately.
To this, in prior art, propose multiple positioning tool, to realize this type of " semi worked pieces " location on the workbench of laser cutting machine and clamping.Wherein, representative portion " Automobile Parts laser cutting positioning clamping fixture " by name, the application number announced on August 22nd, 2012 as State Bureau is the document of " 201120527068.7 ".But this type of " positioning clamping fixture " still also exist complex structure, use the problems such as the high and poor reliability of complex steps, processing cost.
Summary of the invention
The present invention is directed to above problem, provide a kind of delicate structure, easy to use, good reliability and the positioning tool of the high laser cutting machine of positional accuracy and using method thereof.
Technical scheme of the present invention is: the workbench of described laser cutting machine is provided with some draw-in grooves and some bayonet locks, and described positioning tool comprises underframe, at least three gripper shoes, at least three hold down gags and at least two activity detection apparatus;
Described underframe is provided with the buckle of some and described draw-in groove adaptation and the pin-and-hole of some and described bayonet lock adaptation;
The end face of at least three described gripper shoes to be positioned in same level and to be all fixedly connected with described underframe;
Described hold down gag comprises linear drive apparatus and pressing plate, and described linear drive apparatus vertically arranges and is fixedly connected in described underframe, the rotatable top being connected to described linear drive apparatus, one end of described pressing plate;
Described activity detection apparatus comprises sleeve, removable pin and depression bar, described sleeve vertically arranges and is fixedly connected on described underframe, described removable pin is located in described sleeve, and described depression bar connects described removable pin, and removable pin is moved up and down under the drive of depression bar.
Described positioning tool comprises four hold down gags, and described linear drive apparatus comprises cylinder and push rod, and one end of described pressing plate is by the rotatable top being connected to described push rod of rotating disk.
Described pressing plate is provided with cushion block away from the bottom surface of one end of described linear drive apparatus.
The top of described sleeve is provided with isolation baffle plate, and described isolation barrier slides is connected on described underframe.
The cross section of described sleeve is square, described removable pin comprises upper pin and lower pin, described upper pin is cylindrical, adaptive and its underpart of described lower pin and described sleeve offers the slide opening of horizontally disposed strip, one end of described depression bar is by shipping and reselling on another market hinged described slide opening and the other end extend out to outside described underframe, and the middle part of described depression bar is hinged on described underframe.
The cross section of described sleeve is square, described removable pin comprises upper pin and lower pin, described upper pin is cylindrical, described lower pin and described sleeve are adaptive and one side surface is connected with tooth bar, the hinged described underframe in one end of described depression bar and the other end extend out to outside described underframe, described depression bar one end be hinged on described underframe is provided with the gear with described tooth bar adaptation.
A using method for the positioning tool of laser cutting machine, uses according to the following steps:
1), workpiece is placed: be shelved on the end face of at least three gripper shoes by semi worked pieces, and drive pressing plate by linear drive apparatus, make semi worked pieces be pressed together between the end face of gripper shoe and the bottom surface of pressing plate;
2), determine whether that initial workpiece is processed: if then enter step 3); If not, then enter step 7);
3), cutting machine setting-out: laser cutting machine is adjusted to setting-out pattern, semi worked pieces end face draws check line;
4), manually check: manually measure check line, check, it is qualified to judge whether; If qualified, then enter step 7); If defective, then enter step 5);
5), cutting track is adjusted: by the data obtained in step 4), the cutting track in cutting machine is adjusted;
6), check line erasing: manually wipe check line; Return step 3);
7), detect aperture cutting: laser cutting machine is adjusted to cut mode, cutting and detect aperture that position corresponding in the same size with described removable pin on semi worked pieces;
8), removable pin is checked: whether drive removable pin to move upward by depression bar, observe removable pin and stretch in detect aperture, being for qualified, is not for defective; If qualified, then enter step 11); If defective, then enter step 9);
9), find and make mistakes a little: found out by the data obtained in step 8) and make mistakes a little, and record one by one;
10), solve make mistakes a little: settlement steps to deal 9) in record make mistakes a little; Return step 1);
11), work piece cut: laser cutting machine is adjusted to cut mode, semi worked pieces is cut; Complete.
When the present invention uses, workpiece is placed on after in support plate top surface, start hold down gag, by workpiece inflexibly be pressed in frock; Then call laser cutting program, manually the state of laser cutting machine is adjusted to setting-out state; Exemplar on workpiece after setting-out before comparison, carries out dimensional measurement, determines whether error; Conditions of machine tool is adjusted to cut state without after any problem by all, and first two place's detect aperture on cutting tool, stretch in detect aperture by removable pin after having cut; Now, then continue cutting without any deviation, have deviation then to stop immediately, again investigate problem; Finally, carry out cutting other sizes after said process is without any problem, until a qualified production out.
The present invention is in above-mentioned steps, by step 1) to complete Primary Location, by step 2) to step 6) complete initial workpiece processing once check, by step 7) to 10) to complete the final check of all workpiece, thus in the mode of one-time positioning twice check under the prerequisite that ensure that the positional precision between semi worked pieces and laser cutting machine, improve production efficiency (only initial workpiece add need once check man-hour) and processing effect significantly.
In sum, this case is made to have delicate structure, check the advantages such as precision is high, working (machining) efficiency is high, percent defective is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention,
Fig. 2 is the structural representation of semi worked pieces in the present invention,
Fig. 3 is using state schematic diagram of the present invention,
Fig. 4 is the structural representation of hold down gag in the present invention,
Fig. 5 is the top view of Fig. 4;
Fig. 6 is the structural representation of the first embodiment of activity detection apparatus in the present invention,
Fig. 7 be A-A in Fig. 6 to sectional view,
Fig. 8 is the using state reference diagram of the first embodiment of activity detection apparatus in the present invention,
Fig. 9 is the structural representation of removable pin in the first embodiment of activity detection apparatus in the present invention,
Figure 10 is the top view of Fig. 9;
Figure 11 is the structural representation of the second embodiment of activity detection apparatus in the present invention,
Figure 12 is the using state reference diagram of the second embodiment of activity detection apparatus in the present invention;
Figure 13 is workflow diagram of the present invention;
In figure, 1 is underframe, and 11 is buckles, and 12 is pin-and-holes, and 2 is gripper shoes, 3 is hold down gags, and 31 is linear drive apparatus, and 311 is cylinders, and 312 is push rods, 32 is pressing plates, and 320 is cushion blocks, and 4 is activity detection apparatus, 40 is isolation baffle plates, and 41 is sleeves, and 42 is removable pins, 421 is upper pin, and 422 is lower pin, and 4221 is slide openings, 4222 is tooth bars, and 43 is depression bars, and 5 is semi worked pieces.
Detailed description of the invention
As shown in figures 1-13, the workbench of described laser cutting machine is provided with some draw-in grooves and some bayonet locks in the present invention, and described positioning tool comprises underframe 1, at least three gripper shoes 2, at least three hold down gags 3 and at least two activity detection apparatus 4;
Described underframe 1 is provided with the buckle 11 of some and described draw-in groove adaptation and the pin-and-hole 12 of some and described bayonet lock adaptation; Like this, can simply, accurately positioning tool be arranged on the workbench of laser cutting machine; Effectively ensure stability and the uniformity of each clamping;
The end face of at least three described gripper shoes 2 to be positioned in same level and to be all fixedly connected with described underframe 1; Add man-hour actual, the top surface shape of gripper shoe can be set to the shape with the bottom shape adaptation of semi worked pieces 5, thus when making each place work piece, " decorating position " of semi worked pieces is all consistent and in the horizontal direction without play;
Described hold down gag 3 comprises linear drive apparatus 31 and pressing plate 32, described linear drive apparatus 31 vertically arranges and is fixedly connected in described underframe 1, the rotatable connection in one end (comprise the forms such as hinged, make can rotating around the top of linear drive apparatus of pressing plate) of described pressing plate 32 is on the top of described linear drive apparatus 31; After on end face semi worked pieces being erected at gripper shoe, can first pressing plate be driven to rise to more than the end face of semi worked pieces by linear drive apparatus, at rotary pressure plate, make presser motion to the top of semi worked pieces, drive pressing plate descending finally by linear drive apparatus, thus make workpiece be pressed together between the end face of at least three gripper shoes and the bottom surface of at least three pressing plates;
Described activity detection apparatus 4 comprises sleeve 41, removable pin 42 and depression bar 43, described sleeve 41 vertically arranges and is fixedly connected on described underframe 1, described removable pin 42 is located in described sleeve 41, described depression bar 43 connects described removable pin 42, and removable pin 42 is moved up and down under the drive of depression bar 43.Like this, can after detect aperture (its aperture is consistent with the external diameter on upper pin top) have cut, drive removable pin up by depression bar, now, if removable pin can stretch in detect aperture, then the position of this semi worked pieces provable meets the requirements, and namely the pressing position of this semi worked pieces on positioning tool is consistent with the positional information of the semi worked pieces preset in laser cutting machine; Otherwise, then can show that the position of this semi worked pieces is undesirable, thus can find out according to information such as the bias direction between detect aperture and removable pin and offset dimensions further and make mistakes a little, and finally be solved.
Linear drive apparatus in this case can exist by the structural form such as hydraulic pressure, pneumatic, screw mandrel screw, only do representative explanation with pneumatic type below: described positioning tool comprises four hold down gags 3, described linear drive apparatus 31 comprises cylinder 311 and push rod 312, and one end of described pressing plate 32 is by the rotatable top being connected to described push rod 312 of rotating disk.
Described pressing plate 32 is provided with cushion block 320(away from the bottom surface of one end of described linear drive apparatus 31 and makes by flexible materials such as rubber).Thus to reduce the wearing and tearing of pressing plate bottom surface to the end face of semi worked pieces.
The top of described sleeve 41 is provided with isolation baffle plate 40, and described isolation baffle plate 40 is slidably connected on described underframe 1.Like this, when cutting detect aperture, cover sleeve by isolation baffle plate, thus effectively avoid the mistake of laser to sleeve and removable pin to damage.
Below for the type of drive of depression bar, do representative explanation with two kinds of embodiments:
Embodiment one: the cross section of described sleeve 41 is square, described removable pin 42 comprises upper pin 421 and lower pin 422, described upper pin 421 is cylindrical, adaptive and its underpart offers the slide opening 4221 of horizontally disposed strip to described lower pin 422 with described sleeve 41, one end of described depression bar 43 is by shipping and reselling on another market hinged described the slide opening 4221 and other end extend out to outside described underframe 1, and the middle part of described depression bar 43 is hinged on described underframe 1.
Embodiment two: the cross section of described sleeve 41 is square, described removable pin 42 comprises upper pin 421 and lower pin 422, described upper pin 421 is cylindrical, described lower pin 422 is adaptive and one side surface is connected with tooth bar 4222 with described sleeve, the hinged described underframe 1 in one end of described the depression bar 43 and other end extend out to outside described underframe 1, described depression bar 43 one end be hinged on described underframe 1 is provided with the gear with described tooth bar 4222 adaptation.
Use according to the following steps:
1), workpiece is placed: be shelved on by semi worked pieces 5 on the end face of at least three gripper shoes 2, and drive pressing plate 32 by linear drive apparatus 31, make semi worked pieces 5 be pressed together between the end face of gripper shoe 2 and the bottom surface of pressing plate 32;
2), determine whether that initial workpiece is processed: if then enter step 3); If not, then enter step 7);
3), cutting machine setting-out: laser cutting machine is adjusted to setting-out pattern, semi worked pieces 5 end face draws check line;
4), manually check: manually measure check line, check, it is qualified to judge whether; If qualified, then enter step 7); If defective, then enter step 5); Size comparison is carried out by check line and exemplar before;
5), cutting track is adjusted: by the data obtained in step 4), the cutting track in cutting machine is adjusted;
6), check line erasing: manually wipe check line; Return step 3);
7), detect aperture cutting: laser cutting machine is adjusted to cut mode, cutting and detect aperture that position corresponding in the same size with described removable pin 42 on semi worked pieces 5;
8), removable pin is checked: whether drive removable pin 42 to move upward by depression bar 43, observe removable pin 42 and stretch in detect aperture, being for qualified, is not for defective; If qualified, then enter step 11); If defective, then enter step 9);
9), find and make mistakes a little: found out by the data obtained in step 8) and make mistakes a little, and record one by one; Specifically: can be checked the relative position of semi worked pieces on positioning tool by artificial, whether accurately observe location, whether semi worked pieces has play, checks after inspection to cutting process again;
10), solve make mistakes a little: settlement steps to deal 9) in record make mistakes a little; Return step 1);
11), work piece cut: laser cutting machine is adjusted to cut mode, semi worked pieces 5 is cut; Complete.
Above-mentioned artificial check is basic check, initial workpiece adds must first manually check (because once just find mistake after detect aperture cutting man-hour, then will bring high percent defective), then check at removable pin, thus meet the standard of zero tolerance in the mode of dual check; Meanwhile, because semi worked pieces is higher in machining accuracy before this, initial workpiece is after artificial check no problem, and follow-up semi worked pieces then can, without the need to artificial check, only need removable pin to check, thus improves check efficiency significantly and check precision.
In above-mentioned steps, by step 1) to complete Primary Location, by step 2) to step 6) complete initial workpiece processing once check, by step 7) to 10) to complete the final check of all workpiece, thus in the mode of one-time positioning twice check under the prerequisite that ensure that the positional precision between semi worked pieces and laser cutting machine, improve production efficiency (only initial workpiece add need once check man-hour) and processing effect significantly.
Claims (6)
1. the using method of the positioning tool of a laser cutting machine, the workbench of described laser cutting machine is provided with some draw-in grooves and some bayonet locks, it is characterized in that: described positioning tool comprises underframe, at least three gripper shoes, at least three hold down gags and at least two activity detection apparatus;
Described underframe is provided with the buckle of some and described draw-in groove adaptation and the pin-and-hole of some and described bayonet lock adaptation;
The end face of at least three described gripper shoes to be positioned in same level and to be all fixedly connected with described underframe;
Described hold down gag comprises linear drive apparatus and pressing plate, and described linear drive apparatus vertically arranges and is fixedly connected in described underframe, the rotatable top being connected to described linear drive apparatus, one end of described pressing plate;
Described activity detection apparatus comprises sleeve, removable pin and depression bar, described sleeve vertically arranges and is fixedly connected on described underframe, described removable pin is located in described sleeve, and described depression bar connects described removable pin, and removable pin is moved up and down under the drive of depression bar;
The using method of the positioning tool of described laser cutting machine, uses according to the following steps:
1), workpiece is placed: be shelved on the end face of at least three gripper shoes by semi worked pieces, and drive pressing plate by linear drive apparatus, make semi worked pieces be pressed together between the end face of gripper shoe and the bottom surface of pressing plate;
2), determine whether that initial workpiece is processed: if then enter step 3); If not, then enter step 7);
3), cutting machine setting-out: laser cutting machine is adjusted to setting-out pattern, semi worked pieces end face draws check line;
4), manually check: manually measure check line, check, it is qualified to judge whether; If qualified, then enter step 7); If defective, then enter step 5);
5), cutting track is adjusted: by the data obtained in step 4), the cutting track in cutting machine is adjusted;
6), check line erasing: manually wipe check line; Return step 3);
7), detect aperture cutting: laser cutting machine is adjusted to cut mode, cutting and detect aperture that position corresponding in the same size with described removable pin on semi worked pieces;
8), removable pin is checked: whether drive removable pin to move upward by depression bar, observe removable pin and stretch in detect aperture, being for qualified, is not for defective; If qualified, then enter step 11); If defective, then enter step 9);
9), find and make mistakes a little: found out by the data obtained in step 8) and make mistakes a little, and record one by one;
10), solve make mistakes a little: settlement steps to deal 9) in record make mistakes a little; Return step 1);
11), work piece cut: laser cutting machine is adjusted to cut mode, semi worked pieces is cut; Complete.
2. the using method of the positioning tool of a kind of laser cutting machine according to claim 1, it is characterized in that, described positioning tool comprises four hold down gags, and described linear drive apparatus comprises cylinder and push rod, and one end of described pressing plate is by the rotatable top being connected to described push rod of rotating disk.
3. the using method of the positioning tool of a kind of laser cutting machine according to claim 1, is characterized in that, described pressing plate is provided with cushion block away from the bottom surface of one end of described linear drive apparatus.
4. the using method of the positioning tool of a kind of laser cutting machine according to claim 1, is characterized in that, the top of described sleeve is provided with isolation baffle plate, and described isolation barrier slides is connected on described underframe.
5. the using method of the positioning tool of a kind of laser cutting machine according to claim 1, it is characterized in that, the cross section of described sleeve is square, described removable pin comprises upper pin and lower pin, described upper pin is cylindrical, adaptive and its underpart of described lower pin and described sleeve offers the slide opening of horizontally disposed strip, and one end of described depression bar is by shipping and reselling on another market hinged described slide opening and the other end extend out to outside described underframe, and the middle part of described depression bar is hinged on described underframe.
6. the using method of the positioning tool of a kind of laser cutting machine according to claim 1, it is characterized in that, the cross section of described sleeve is square, described removable pin comprises upper pin and lower pin, described upper pin is cylindrical, described lower pin and described sleeve are adaptive and one side surface is connected with tooth bar, the hinged described underframe in one end of described depression bar and the other end extend out to outside described underframe, and described depression bar one end be hinged on described underframe is provided with the gear with described tooth bar adaptation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410052428.0A CN103785960B (en) | 2014-02-17 | 2014-02-17 | Positioning tool of laser cutting machine and using method thereof |
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| CN201410052428.0A CN103785960B (en) | 2014-02-17 | 2014-02-17 | Positioning tool of laser cutting machine and using method thereof |
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| CN103785960A CN103785960A (en) | 2014-05-14 |
| CN103785960B true CN103785960B (en) | 2015-07-15 |
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|---|---|---|---|---|
| CN109794878B (en) * | 2019-02-18 | 2019-12-06 | 江苏迈信林航空科技股份有限公司 | Plate machining tool |
| CN112025053A (en) * | 2020-08-20 | 2020-12-04 | 董术杰 | Welding equipment with dustproof effect on welding rod |
| CN112132452A (en) * | 2020-09-22 | 2020-12-25 | 中电九天智能科技有限公司 | Method and device for automatically triggering and detecting first part |
| CN113283007B (en) * | 2021-05-21 | 2022-06-21 | 江铃汽车股份有限公司 | Light truck transmission shaft arrangement checking method based on CATIA |
| CN114472465B (en) * | 2022-01-23 | 2022-11-18 | 滁州辉煌无纺科技有限公司 | Based on non-woven fabric production rim charge circulation recovery processing agency |
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| US6378186B1 (en) * | 1993-07-08 | 2002-04-30 | Progressive Tool & Industries Co. | Automobile framing system |
| CN201275679Y (en) * | 2008-09-08 | 2009-07-22 | 大连奥托股份有限公司 | Laser cutting fixture |
| CN201988873U (en) * | 2011-03-09 | 2011-09-28 | 浙江豪情汽车制造有限公司 | Car door welding fixture |
| EP2394776A1 (en) * | 2010-06-10 | 2011-12-14 | C.R.F. Società Consortile per Azioni | Welding station for vehicle metal sheet body components using magnetic fixing means |
| CN203712094U (en) * | 2014-02-17 | 2014-07-16 | 扬州市昌盛车业有限公司 | Positioning assembly for laser cutting machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101405373B1 (en) * | 2008-04-04 | 2014-06-10 | 기아자동차 주식회사 | Panel clamping device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6378186B1 (en) * | 1993-07-08 | 2002-04-30 | Progressive Tool & Industries Co. | Automobile framing system |
| CN201275679Y (en) * | 2008-09-08 | 2009-07-22 | 大连奥托股份有限公司 | Laser cutting fixture |
| EP2394776A1 (en) * | 2010-06-10 | 2011-12-14 | C.R.F. Società Consortile per Azioni | Welding station for vehicle metal sheet body components using magnetic fixing means |
| CN201988873U (en) * | 2011-03-09 | 2011-09-28 | 浙江豪情汽车制造有限公司 | Car door welding fixture |
| CN203712094U (en) * | 2014-02-17 | 2014-07-16 | 扬州市昌盛车业有限公司 | Positioning assembly for laser cutting machine |
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