CN104526123A - Rear passenger car wall assembly welding clamp and technique using the same to weld rear wall assembly - Google Patents
Rear passenger car wall assembly welding clamp and technique using the same to weld rear wall assembly Download PDFInfo
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- CN104526123A CN104526123A CN201410733699.2A CN201410733699A CN104526123A CN 104526123 A CN104526123 A CN 104526123A CN 201410733699 A CN201410733699 A CN 201410733699A CN 104526123 A CN104526123 A CN 104526123A
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- clamp arm
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- 238000003466 welding Methods 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 23
- 108010001267 Protein Subunits Proteins 0.000 claims description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 238000005304 joining Methods 0.000 claims description 4
- 238000005498 polishing Methods 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 230000008602 contraction Effects 0.000 claims description 3
- 230000000977 initiatory effect Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 3
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000001595 contractor effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Classifications
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- 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
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/007—Spot arc welding
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to a rear passenger car wall assembly welding clamp and a technique using the same to weld a rear wall assembly. The rear passenger car wall assembly welding clamp comprises a pedestal, a short support, a long support, a cylinder and a clamp wall, a plurality of first supports are fixed at the front and rear sides of the pedestal, a plurality of second supports are fixed at the left and right sides of the pedestal, and a jacking device is fixed at the middle position. The technique using the clamp to weld the rear wall assembly includes steps that firstly, using the clamp to clamp, fix and weld spare parts of a rear wall framework into a single body, using the jacking device to jack up, and using a cantilever crane to hoist out the rear wall framework; secondly, using the clamp to clamp, fix and weld spare parts of a rear wall skin into a single body, and using the jacking device to jack up; finally, hoisting the rear wall framework into the rear wall skin, resetting the jacking device, compressing the rear wall framework and rear wall skin, and welding to form the rear wall assembly. The technique enables the precision quality and appearance effect of the rear wall assembly to be guaranteed.
Description
Technical field
The invention belongs to passenger vehicle back wall assembly manufacturing technology field, be specifically related to a kind of passenger vehicle back wall assembly assembling-welding fixtures and use it to carry out the technique of back wall assembly welding equipment.
Background technology
Passenger vehicle back wall assembly comprises rear wall frame sub-unit and rear wall outer panel sub-unit, the welding equipment of passenger vehicle back wall assembly, the i.e. welding equipment of rear wall frame and rear wall outer panel, the welding equipment traditional handicraft of current bus industry back wall assembly is as described below: first by rear wall frame sub-unit that each parts of rear wall frame sub-unit are welded as a whole, form based on rear wall frame sub-unit, each parts of rear wall outer panel carry out the work of joining weldering and riveted joint on the outer surface of rear wall frame sub-unit, now, rear wall outer panel and rear wall frame form a complete back wall assembly, then back wall assembly cantilever crane is sling, again rear wall outer panel and rear wall frame lower surface are welded and dress work.But, square tube itself due to rear wall frame makes to exist after error and each side's duct member are welded to form rear wall frame exists welding deformation and scale error, so each parts of rear wall outer panel carry out welding equipment with the trend state of rear wall frame sub-unit, the rear wall outer panel distortion formed after welding is comparatively large, has a strong impact on appearance.
Summary of the invention
Instant invention overcomes the shortcoming of prior art, the technique of the fixture providing a kind of passenger vehicle back wall assembly welding equipment and the welding equipment passenger vehicle back wall assembly using this fixture, this jig Design is rational in infrastructure, each parts of rear wall frame and rear wall outer panel are carried out to the clamping of relative position, the integral solder error of rear wall frame and rear wall outer panel is reduced, use this fixture to the technique that passenger vehicle back wall assembly carries out welding equipment, rear wall outer panel can be attached together after first integral solder again with rear wall frame to weld, attach together the back wall assembly welding equipment accurate positioning after welding, be installed and put in place, and the process distortion that is welded is little, obviously can promote welding quality, greatly improve the outward appearance of back wall assembly.
Concrete technical scheme of the present invention is:
A kind of fixture of passenger vehicle back wall assembly welding equipment, comprise base, first pillar, second pillar, cylinder and clamp arm, base is the three-back-shaped structure of middle part for rectangular through-hole, first pillar and the second pillar are multiple and are distributed in both sides, front and back and the left and right sides of base plate upper surface respectively, each first pillar and the equal correspondence of each second pillar arrange a cylinder and a clamp arm, cylinder corresponding to first pillar to be vertically arranged in outside the first pillar and to be fixed on base upper surface, the clamp arm of base rear and front end is horizontally set at the first pillar upper end, the middle part of clamp arm and the first pillar upper end thereof, the outer end of clamp arm and the telescopic end of cylinder hinged, cylinder corresponding to second pillar is laterally fixed on the second pillar upper end, clamp arm corresponding to second pillar is vertically arranged at inside the second column upper section, middle part and second post inboard of clamp arm are hinged, the telescopic end of clamp arm upper end and cylinder is hinged, the rectangular through-hole place, middle part of base is provided with jacking apparatus, do not contact between jacking apparatus with base.
Described jacking apparatus comprises holder, retractor device and bracing frame, and telescoping cylinder is multiple, and all retractor devices are evenly distributed on holder upper surface, and retractor device lower end and holder upper surface are fixed, and retractor device upper end and bracing frame lower surface are fixed.
Described retractor device is telescopic cylinder, telescopic oil cylinder or Electrohydraulic push rod.
The passenger vehicle back wall assembly assembling and welding process of described fixture, is characterized in that comprising the following steps:
A, rear wall frame sub-unit welds: first each for rear wall frame sub-unit parts are positioned over corresponding position, the upper surface of the first pillar 2 in fixture respectively according to structure composition, jettron control cylinder 4 does stretching and promotes clamp arm 5 clamped closed gradually, being fixedly clamped of each parts is realized respectively by the clamping of each clamp arm 5, then carbon dioxide gas arc welding is adopted to carry out the welding between each parts of rear wall frame thus form all-in-one-piece rear wall frame sub-unit, jettron controls all cylinders 4 and shrinks thus clamp arm 5 is unclamped, finally utilize jacking apparatus by rear wall frame sub-unit jack-up, after rear wall frame is promoted to and departs from fixture completely, with cantilever crane, rear wall frame sub-unit is sling, jacking apparatus return drops to home position, weld seam is carried out to rear wall frame lower surface, strengthen angle and dribbleware, weld the rear weld seam to skeleton and carry out polishing to smooth,
B, rear wall outer panel sub-unit weld: first each parts of rear wall outer panel sub-unit are positioned over corresponding position, the upper surface of the first pillar 2 in fixture respectively according to structure composition, the jettron control cylinder 4 corresponding with each parts of rear wall outer panel sub-unit does stretching and promotes clamp arm 5 clamped closed, realize being fixedly clamped of each parts respectively by the clamping of each clamp arm 5, then each parts are welded as a whole;
C, rear wall frame sub-unit and rear wall outer panel sub-unit attach together: jettron controls all cylinders 4 and shrinks thus make clamp arm 5 unclamp each parts of rear wall outer panel, then utilize jacking apparatus by rear wall outer panel sub-unit jack-up, after rear wall outer panel sub-unit is promoted to and departs from fixture completely, rear wall frame sub-unit is winched in rear wall outer panel sub-unit, then by jacking apparatus return, after jacking apparatus drives rear wall outer panel sub-unit and rear wall frame sub-unit to drop to the first pillar 2 upper surface opposite position, jettron control cylinder 4 does stretching and promotes clamp arm 5 clamped closed gradually, being fixed of rear wall outer panel sub-unit and rear wall frame sub-unit is realized by the clamping of each clamp arm 5, key point between rear wall frame sub-unit and rear wall outer panel sub-unit uses dull and stereotyped, abnormity connecting plate carries out bonding and welding, rear wall frame sub-unit and rear wall outer panel sub-unit are attached together as back wall assembly,
In described step C, when rear wall frame sub-unit and rear wall outer panel sub-unit attach together after into back wall assembly, controlling the contraction of all cylinders 4 makes clamp arm 5 unclamp back wall assembly, open jacking apparatus by back wall assembly jack-up simultaneously, after back wall assembly departs from fixture completely, with cantilever crane, back wall assembly is hung out, then rested and reorganized, polished to smooth in back wall assembly local, complete the welding equipment of back wall assembly.
In described step B, the welding manner of rear wall outer panel sub-unit parts is spot welding, and the spot welding spacing between parts is 25 ~ 35mm, and the linearity of weld nugget is less than 3mm, and initiating terminal and the clearing end of parts joining place covering flange arrange spot welding place.
In described steps A rear wall frame sub-unit each parts between first fix carrying out spot welding between parts when welding, then two facades of weld seam between adjacent two parts of full weld and the upper surface of weld seam.
Beneficial effect of the present invention: the fixture of the passenger vehicle back wall assembly welding equipment in the present invention be arranged so that between rear wall frame and the parts of rear wall outer panel, relative position is maintained, reduce the welding error between rear wall frame and the parts of rear wall outer panel, each for rear wall frame parts and each parts of rear wall outer panel are clamped respectively and is welded and fixed, form rear wall frame sub-unit and rear wall outer panel sub-unit respectively, the integral welding of rear wall outer panel sub-unit is disturbed from the trend shape of rear wall frame sub-unit, then back wall assembly distortion rear wall frame sub-unit and rear wall outer panel sub-unit being attached together rear formation is little, fine degree and the appearance of back wall assembly obviously promote.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the left view of Fig. 1.
In accompanying drawing, 1, base, the 2, first pillar, the 3, second pillar, 4, cylinder, 5, clamp arm, 6, holder, 7, retractor device, 8, bracing frame.
Detailed description of the invention
A kind of fixture of passenger vehicle back wall assembly welding equipment, comprise base 1, first pillar 2, second pillar 3, cylinder 4 and clamp arm 5, base 1 for middle part be the three-back-shaped structure of rectangular through-hole, first pillar 2 and the second pillar 3 are multiple and are distributed in both sides, front and back and the left and right sides of base plate 1 upper surface respectively, each first pillar 2 and each second pillar 3 all correspondence arrange a cylinder 4 and a clamp arm 5, cylinder 4 corresponding to first pillar 2 to be vertically arranged in outside the first pillar 2 and to be fixed on base 1 upper surface, the clamp arm 5 of base 1 rear and front end is horizontally set at the first pillar 2 upper end, the middle part of clamp arm 5 and the first pillar 2 upper end thereof, the outer end of clamp arm 5 and the telescopic end of cylinder 4 hinged, cylinder 4 corresponding to second pillar 3 is laterally fixed on the second pillar 3 upper end, clamp arm 5 corresponding to second pillar 3 is vertically arranged at the second pillar 3 upper inner, hinged inside the middle part of clamp arm 5 and the second pillar 3, the telescopic end of clamp arm 5 upper end and cylinder 4 is hinged, the rectangular through-hole place, middle part of base 1 is provided with jacking apparatus, do not contact between jacking apparatus with base 1, jacking apparatus comprises holder 6, retractor device 7 and bracing frame 8, telescoping cylinder 7 is multiple, all retractor devices 7 are evenly distributed on holder 6 upper surface, retractor device 7 lower end and holder 6 upper surface are fixed, retractor device 7 upper end and bracing frame 8 lower surface are fixed.
Use a passenger vehicle back wall assembly assembling and welding process for fixture described in claim 1, its technological process comprises the following steps:
A, rear wall frame sub-unit weld: first each for rear wall frame sub-unit parts are positioned over corresponding position, the upper surface of the first pillar 2 in fixture respectively according to structure composition, jettron control cylinder 4 does stretching and promotes clamp arm 5 clamped closed gradually, being fixedly clamped of each parts is realized respectively by the clamping of each clamp arm 5, then carbon dioxide gas arc welding is adopted to carry out the welding between each parts of rear wall frame thus form overall rear wall frame sub-unit, CO
2the gas that gas shielded arc welding uses and welding wire, low price, with 85%Ar+15%CO
2mixed gas arc welding is compared, CO
2gas shielded arc welding welding cost is low, productivity ratio is high, applied widely etc., and CO
2gas shielded arc welding is a kind of open arc welding connection, electric arc and molten bath can be observed, be convenient to monitoring and controlling, postwelding does not need scarfing cinder, be conducive to the mechanization and the automation that realize welding process, in welding process, first fix carrying out spot welding between parts, two facades in weld seam again between the adjacent parts of full weld two and the upper surface of weld seam, after rear wall frame welds, utilize jacking apparatus by rear wall frame jack-up, the bracing frame 8 of jacking apparatus carries rear wall frame and moves up under the stretching of retractor device 7, cylinder 4 shrinks gradually, clamp arm 5 is opened thereupon, clamp arm 5 is slightly delayed compared to the action of cylinder 4, then jacking apparatus is started, finally realize loosening while the interlock of jacking, in jack-up process, all cylinders 4 shrink thus make clamp arm 5 unclamp each parts of rear wall frame, after rear wall frame is promoted to and departs from fixture completely, with cantilever crane, rear wall frame sub-unit is sling, the bracing frame 8 of jacking apparatus drops to home position thus departs from rear wall frame under the contractive action of retractor device 7, rear wall frame is winched to clear region, start to carry out weld seam to skeleton lower surface, strengthen angle and dribbleware, weld the rear weld seam to skeleton to polish,
B, rear wall outer panel sub-unit welds: first each parts of rear wall outer panel sub-unit are positioned over corresponding position, the upper surface of the first pillar 2 in fixture respectively according to structure composition, jettron control cylinder 4 does stretching and promotes clamp arm 5 clamped closed, being fixedly clamped of each parts is realized respectively by the clamping of each clamp arm 5, then each parts are welded as a whole, the welding manner of rear wall outer panel sub-unit parts is spot welding, spot welding spacing between parts is 25 ~ 35mm, the linearity of weld nugget is less than 3mm, the initiating terminal of parts joining place covering flange and the necessary spot welding of clearing end,
C, rear wall frame sub-unit and rear wall outer panel sub-unit attach together: jettron controls all cylinders 4 and shrinks thus make clamp arm 5 unclamp each parts of rear wall outer panel, then utilize jacking apparatus by rear wall outer panel sub-unit jack-up, after rear wall outer panel sub-unit is promoted to and departs from fixture completely, with cantilever crane, rear wall frame sub-unit is winched in rear wall outer panel sub-unit, then by jacking apparatus return, after jacking apparatus drives rear wall outer panel sub-unit and rear wall frame sub-unit to drop to hold down gag position, jettron control cylinder 4 does stretching and promotes clamp arm 5 clamped closed gradually, being fixed of rear wall outer panel sub-unit and rear wall frame sub-unit is realized by the clamping of each clamp arm 5, rear wall frame sub-unit and rear wall outer panel sub-unit are compressed, key point between rear wall frame sub-unit and rear wall outer panel sub-unit uses flat board or special-shaped connecting plate to carry out bonding and welding, bonding and welding can be implemented separately according to actual needs, also can adopt simultaneously, technique for sticking is adopted between skeleton sub-unit and covering sub-unit, in order to avoid covering sub-unit exposed surface solder joint melts trace, reduce solder joint and melt trace polishing and the workload that ash makes up is scraped in follow-up application, improve covering presentation quality, the paint simultaneously also reduced after scraping ash splits hidden danger incidence, and be ensure sub-unit bonding after intensity, avoid because external environment factor affects the generation of skeleton and the covering degumming phenomenon caused, simultaneously at the concealment part of two sub-units as non-exposed face, flange place adopts welding manner, rear wall frame sub-unit and rear wall outer panel sub-unit are attached together as back wall assembly, when rear wall frame sub-unit and rear wall outer panel sub-unit attach together after into back wall assembly, open jacking apparatus, control the contraction of all cylinders 4 makes clamp arm 5 unclamp back wall assembly simultaneously, after back wall assembly departs from fixture completely, with cantilever crane, back wall assembly is hung out, then back wall assembly local is repaired, polishing, complete the welding equipment of back wall assembly.
The present invention is welded by rear wall outer panel sub-unit and rear wall frame sub-unit individually being processed, avoid the impact that rear wall outer panel sub-unit is subject to the trend shape of rear wall frame sub-unit, thus improve the outward appearance of rear wall outer panel sub-unit, both entirety are welded into back wall sub-unit, be installed in the process of being welded put in place, welding process distortion little, the assembling and welding process in this invention is adopted to substantially increase the welding quality of back wall assembly, simultaneously also for the improvement of the appearance of back wall assembly provides the foundation.
Claims (7)
1. the fixture of a passenger vehicle back wall assembly welding equipment, it is characterized in that: comprise base (1), first pillar (2), second pillar (3), cylinder (4) and clamp arm (5), base (1) for middle part be the three-back-shaped structure of rectangular through-hole, first pillar (2) and the second pillar (3) are multiple and are distributed in both sides, front and back and the left and right sides of base plate (1) upper surface respectively, each first pillar (2) and each second pillar (3) all correspondence arrange a cylinder (4) and a clamp arm (5), cylinder (4) corresponding to first pillar (2) is vertically arranged in the first pillar (2) outside and is fixed on base (1) upper surface, the clamp arm (5) of base (1) rear and front end is horizontally set at the first pillar (2) upper end, the middle part of clamp arm (5) and the first pillar (2) upper end thereof, the outer end of clamp arm (5) and the telescopic end of cylinder (4) hinged, cylinder (4) corresponding to second pillar (3) is laterally fixed on the second pillar (3) upper end, clamp arm (5) corresponding to second pillar (3) is vertically arranged at the second pillar (3) upper inner, the middle part of clamp arm (5) and the second pillar (3) inner side hinged, the telescopic end of clamp arm (5) upper end and cylinder (4) is hinged, the rectangular through-hole place, middle part of base (1) is provided with jacking apparatus, do not contact between jacking apparatus with base (1).
2. the fixture of a kind of passenger vehicle back wall assembly welding equipment according to claim 1, it is characterized in that: described jacking apparatus comprises holder (6), retractor device (7) and bracing frame (8), telescoping cylinder (7) is for multiple, all retractor devices (7) are evenly distributed on holder (6) upper surface, retractor device (7) lower end and holder (6) upper surface are fixed, and retractor device (7) upper end and bracing frame (8) lower surface are fixed.
3. the fixture of a kind of passenger vehicle back wall assembly welding equipment according to claim 2, is characterized in that: described retractor device (7) is telescopic cylinder, telescopic oil cylinder or Electrohydraulic push rod.
4. use a passenger vehicle back wall assembly assembling and welding process for fixture described in claim 1, it is characterized in that comprising the following steps:
A, rear wall frame sub-unit welds: first each for rear wall frame sub-unit parts are positioned over corresponding position, the upper surface of the first pillar (2) in fixture respectively according to structure composition, jettron control cylinder (4) does stretching and promotes clamp arm (5) clamped closed gradually, being fixedly clamped of each parts is realized respectively by the clamping of each clamp arm (5), then carbon dioxide gas arc welding is adopted to carry out the welding between each parts of rear wall frame thus form all-in-one-piece rear wall frame sub-unit, jettron controls all cylinders (4) and shrinks thus clamp arm (5) is unclamped, finally utilize jacking apparatus by rear wall frame sub-unit jack-up, after rear wall frame is promoted to and departs from fixture completely, with cantilever crane, rear wall frame sub-unit is sling, jacking apparatus return drops to home position, weld seam is carried out to rear wall frame lower surface, strengthen angle and dribbleware, weld the rear weld seam to skeleton and carry out polishing to smooth,
B, rear wall outer panel sub-unit weld: first each parts of rear wall outer panel sub-unit are positioned over corresponding position, the upper surface of the first pillar (2) in fixture respectively according to structure composition, the jettron control cylinder (4) corresponding with each parts of rear wall outer panel sub-unit does stretching and promotes clamp arm (5) clamped closed, realize being fixedly clamped of each parts respectively by the clamping of each clamp arm (5), then each parts are welded as a whole;
C, rear wall frame sub-unit and rear wall outer panel sub-unit attach together: jettron controls all cylinders (4) and shrinks thus make clamp arm (5) unclamp each parts of rear wall outer panel, then utilize jacking apparatus by rear wall outer panel sub-unit jack-up, after rear wall outer panel sub-unit is promoted to and departs from fixture completely, rear wall frame sub-unit is winched in rear wall outer panel sub-unit, then by jacking apparatus return, after jacking apparatus drives rear wall outer panel sub-unit and rear wall frame sub-unit to drop to the first pillar (2) upper surface opposite position, jettron control cylinder (4) does stretching and promotes clamp arm (5) clamped closed gradually, being fixed of rear wall outer panel sub-unit and rear wall frame sub-unit is realized by the clamping of each clamp arm (5), key point between rear wall frame sub-unit and rear wall outer panel sub-unit uses dull and stereotyped, abnormity connecting plate carries out bonding and welding, rear wall frame sub-unit and rear wall outer panel sub-unit are attached together as back wall assembly.
5. passenger vehicle back wall assembly assembling and welding process according to claim 4, it is characterized in that: in described step C, when rear wall frame sub-unit and rear wall outer panel sub-unit attach together after into back wall assembly, controlling all cylinders (4) contraction makes clamp arm (5) unclamp back wall assembly, open jacking apparatus by back wall assembly jack-up simultaneously, after back wall assembly departs from fixture completely, with cantilever crane, back wall assembly is hung out, then rested and reorganized, polished to smooth in back wall assembly local, complete the welding equipment of back wall assembly.
6. passenger vehicle back wall assembly assembling and welding process according to claim 4, it is characterized in that: in described step B, the welding manner of rear wall outer panel sub-unit parts is spot welding, spot welding spacing between parts is 25 ~ 35mm, the linearity of weld nugget is less than 3mm, and initiating terminal and the clearing end of parts joining place covering flange arrange spot welding place.
7. passenger vehicle back wall assembly assembling and welding process according to claim 4, it is characterized in that: in described steps A rear wall frame sub-unit each parts between first fix carrying out spot welding between parts when welding, then two facades of weld seam between adjacent two parts of full weld and the upper surface of weld seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410733699.2A CN104526123B (en) | 2014-12-05 | 2014-12-05 | Passenger vehicle back wall assembly assembling-welding fixtures and use it to carry out the technique of back wall assembly welding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410733699.2A CN104526123B (en) | 2014-12-05 | 2014-12-05 | Passenger vehicle back wall assembly assembling-welding fixtures and use it to carry out the technique of back wall assembly welding equipment |
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| Publication Number | Publication Date |
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| CN104526123A true CN104526123A (en) | 2015-04-22 |
| CN104526123B CN104526123B (en) | 2016-05-18 |
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| CN201410733699.2A Active CN104526123B (en) | 2014-12-05 | 2014-12-05 | Passenger vehicle back wall assembly assembling-welding fixtures and use it to carry out the technique of back wall assembly welding equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526224A (en) * | 2014-12-05 | 2015-04-22 | 保定长安客车制造有限公司 | Front passenger car wall assembly welding clamp and technique using the same to weld front wall assembly |
| CN108927607A (en) * | 2017-08-01 | 2018-12-04 | 汪思芳 | Automobile workpiece welding method |
| CN108942052A (en) * | 2018-09-04 | 2018-12-07 | 桂林航天工业学院 | A kind of bus body skeleton welding fixture with turn over function |
| CN113787290A (en) * | 2021-08-30 | 2021-12-14 | 安徽泓毅汽车技术股份有限公司 | Automobile rear wall inner plate assembly welding clamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104526224A (en) * | 2014-12-05 | 2015-04-22 | 保定长安客车制造有限公司 | Front passenger car wall assembly welding clamp and technique using the same to weld front wall assembly |
| CN108927607A (en) * | 2017-08-01 | 2018-12-04 | 汪思芳 | Automobile workpiece welding method |
| CN108927607B (en) * | 2017-08-01 | 2021-06-29 | 十堰劲驰汽车零部件有限公司 | Automobile workpiece welding method |
| CN108942052A (en) * | 2018-09-04 | 2018-12-07 | 桂林航天工业学院 | A kind of bus body skeleton welding fixture with turn over function |
| CN108942052B (en) * | 2018-09-04 | 2023-06-20 | 桂林航天工业学院 | Passenger car body framework welding fixture with overturning function |
| CN113787290A (en) * | 2021-08-30 | 2021-12-14 | 安徽泓毅汽车技术股份有限公司 | Automobile rear wall inner plate assembly welding clamp |
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| CN104526123B (en) | 2016-05-18 |
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