CN112548504A - Vehicle door welding process - Google Patents
Vehicle door welding process Download PDFInfo
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- CN112548504A CN112548504A CN202011512654.4A CN202011512654A CN112548504A CN 112548504 A CN112548504 A CN 112548504A CN 202011512654 A CN202011512654 A CN 202011512654A CN 112548504 A CN112548504 A CN 112548504A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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Abstract
The invention provides a vehicle door welding process, which comprises the following steps: assembling a vehicle door inner plate welding assembly; the first three-step spot welding; punching a hole in the welding assembly of the inner plate of the vehicle door; assembling a first outer plate reinforcing plate, a second outer plate reinforcing plate and an anti-collision beam assembly on a vehicle door inner plate welding assembly; performing spot welding for the second time; after the outer door plate is coated with the shock absorption glue and the inner door plate is coated with the hemming glue, the inner door plate and the outer door plate are combined and pressed; after the pressing is finished, repair welding is carried out; assembling an upper hinge assembly and a lower hinge assembly; and (5) inspecting appearance defects. The vehicle door produced by the process has the advantages of higher strength, stronger anti-collision force and simpler and more convenient manufacturing process.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a welding process for a vehicle door.
Background
With the development of economic society, automobiles enter into millions of families, automobile bodies are important components of the automobiles, the mass and the manufacturing cost of the automobile bodies account for 40% -60% of the whole automobiles, and the automobile bodies are important parts in the automobile bodies. The door provides the passageway of access vehicle for driver and passenger to the isolated outer interference of car alleviates the side impact to a certain extent, protects passenger.
Disclosure of Invention
In view of the problems noted in the background, the present invention provides a vehicle door welding process.
The technical scheme of the invention is realized as follows:
a vehicle door welding process is characterized by comprising the following steps:
step 1: assembling a vehicle door inner plate welding assembly according to a certain assembling sequence, wherein the vehicle door inner plate welding assembly comprises a vehicle door inner plate, a vehicle door hinge reinforcing plate, a first nut hinge, a second nut hinge, a first vehicle window frame assembly, a second vehicle window frame assembly, a vehicle door window frame, a vehicle door triangular window supporting plate and a vehicle door lock reinforcing plate;
step 2: three-step spot welding
The first robot operates a welding tongs to weld, 9 points are welded on the left side of the welding assembly of the inner plate of the vehicle door, wherein the 9 welding points comprise 2 semi-failure points and 7 full-failure points, and each 30 vehicles carry out one-time semi-failure inspection on the appointed point on a semi-failure inspection table;
the second robot operates a welding tongs to weld, 9 points are welded on the right side of the welding assembly of the inner plate of the vehicle door, wherein the 9 welding points comprise 1 half-damage point and 8 full-damage points, and half-damage inspection is performed on the appointed point on a half-damage inspection table once every 30 vehicles;
a third robot grabs parts from the inner plate assembly fixture to a fixed welding tongs and performs repair welding for 7 points, wherein the 7 repair welding points comprise 1 half-damage point and 6 full-damage points, and half-damage inspection is performed on the appointed point on a half-damage inspection table once every 30 vehicles;
and step 3: placing the vehicle door inner plate welding assembly to punching equipment by a fourth robot, performing punching treatment, taking a workpiece from the punching equipment, and transferring the workpiece to the next station;
and 4, step 4: assembling a first outer plate reinforcing plate, a second outer plate reinforcing plate and an anti-collision beam assembly to a welding assembly of the vehicle door inner plate in a welding and clamping state according to a certain assembling sequence;
and 5: three-step spot welding
After the clamp is clamped, a fifth robot operates a welding tongs to weld, 8 points are welded on the right side of the welding assembly of the inner plate of the vehicle door, wherein 8 welding points comprise 2 semi-failure points and 6 full-failure points, and semi-failure inspection is performed on a designated point on a semi-failure inspection table every 30 vehicles;
after the clamp is clamped, a sixth robot operates a welding tongs to weld, 7 points are welded on the left side of the welding assembly of the inner plate of the vehicle door, wherein the 7 welding points comprise 1 half-damage point and 6 full-damage points, and half-damage inspection is performed on the appointed point on a half-damage inspection table once every 30 vehicles;
the seventh robot operates the welding tongs to perform repair welding for 10 points, wherein the 10 points are all full-damage points, and half-damage inspection is performed on the appointed point once on a half-damage inspection table every 30 vehicles;
step 6: after the outer door plate is coated with the shock absorption glue and the inner door plate is coated with the hemming glue, the inner door plate and the outer door plate are combined, and the eighth robot grabs and lifts the combined door assembly and places the door assembly into a pressing mold for pressing;
and 7: after the pressing is finished, the ninth robot grabs the vehicle door assembly to the fixed welding tongs for repair welding for 10 points, wherein the 10 points are all full-damage points, and half-damage inspection is carried out on the appointed points every 30 vehicles;
and 8: assembling the upper hinge assembly and the lower hinge assembly on the inner side of the vehicle door assembly through bolts by using a pneumatic wrench;
and step 9: and placing the vehicle door assembly on a grinding table, checking whether appearance defects such as burrs exist, and repairing the defect.
The invention is further set that the sequence of assembling parts on the inner door panel in the step 1 is a first door sash assembly, a door sash, a second door sash assembly, a door quarter window support plate, a door lock reinforcing plate, a door hinge reinforcing plate, a first nut hinge and a second nut hinge.
The invention is further set that the door lock reinforcing plate in the step 1 is coated with damping glue.
The invention is further arranged in that in the step 4, the parts are assembled on the welding assembly of the inner plate of the vehicle door by the anti-collision beam assembly, the first outer plate reinforcing plate and the second outer plate reinforcing plate which are sequentially arranged from bottom to top.
The invention is further arranged that, in step 2: the positions of 9 points welded by the first robot are respectively 2 welding points of a door lock reinforcing plate and a door inner plate, 2 welding points of the bottom end of a first door frame assembly and the door inner plate, 2 welding points of a door triangular window supporting plate and the door inner plate, 1 welding point of the middle part of the first door frame assembly and the door inner plate, 1 welding point of the top end of the first door frame assembly and a door window frame, and 1 welding point of the left side of the door window frame and the door inner plate, wherein one of the 2 welding points of the door lock reinforcing plate and the door inner plate, which is positioned at the lower side, is a half-failure point, and one of the 2 welding points of the bottom end of the first door frame assembly and the door inner plate, which is positioned at the left side;
the positions of 9 points welded by the second robot are respectively 1 welding point of the middle part of the door sash and the door inner plate, 1 welding point of the right side of the door sash and the door inner plate, 1 welding point of the right end of the door sash and the second door sash assembly, 1 welding point of the middle part of the second door sash assembly and the door inner plate, 1 welding point of the top part of the door hinge reinforcing plate and the second door sash assembly, 2 welding points of the middle part and the bottom part of the door hinge reinforcing plate and the door inner plate, 1 welding point of the first nut hinge and the door hinge reinforcing plate, and 1 welding point of the second nut hinge and the door hinge reinforcing plate, wherein the welding point of the bottom part of the door hinge reinforcing plate and the door inner plate is a half-breaking point;
the position of 7 points of third robot welded is 2 welding points of door lock reinforcing plate and door inner panel respectively, 1 welding point of door hinge reinforcing plate top and second door window frame assembly, 2 welding points of door hinge reinforcing plate middle part and door inner panel, 1 welding point of first nut hinge and door hinge reinforcing plate, 1 welding point of second nut hinge and door hinge reinforcing plate, wherein 1 welding point of door hinge reinforcing plate top and second door window frame assembly is the point of partly destroying.
The invention is further arranged that, in step 5: the positions of 8 points welded by the fifth robot are respectively 2 welding points of a door window frame and a door inner plate, 1 welding point of a first door window frame assembly and the door inner plate, 2 welding points of the right end of a second outer plate reinforcing plate and the door inner plate, 1 welding point of the right end of a first outer plate reinforcing plate and the door inner plate, and 2 welding points of the right end of an anti-collision beam assembly and the door inner plate, wherein 1 welding point of the first door window frame assembly and the door inner plate is a semi-failure point, and 1 welding point of the right end of the first outer plate reinforcing plate and the door inner plate is a semi-failure point;
the positions of 7 points welded by the sixth robot are respectively 1 welding point of the door hinge reinforcing plate and the door inner plate, 2 welding points of the left end of the anti-collision beam assembly and the door hinge reinforcing plate, 1 welding point of the left end of the first outer plate reinforcing plate and the door hinge reinforcing plate, 1 welding point of the door hinge reinforcing plate and the door inner plate, 1 welding point of the left end of the second outer plate reinforcing plate and the door hinge reinforcing plate, and 1 welding point of the second window frame assembly and the door inner plate, wherein 1 welding point of the first outer plate reinforcing plate and the door hinge reinforcing plate is a semi-failure point;
the position of the welded 10 points of the seventh robot is 1 welding point of the left end of the second outer plate reinforcing plate and the door hinge reinforcing plate, 1 welding point of the left end of the first outer plate reinforcing plate and the door hinge reinforcing plate, 2 welding points of the door hinge reinforcing plate and the door inner plate, 2 welding points of the left end of the anti-collision beam assembly and the door hinge reinforcing plate, 1 welding point of the right end of the first outer plate reinforcing plate and the door inner plate, 2 welding points of the right end of the anti-collision beam assembly and the door inner plate, and 1 welding point of the left end of the door window frame and the door inner plate.
In conclusion, the beneficial effects of the invention are as follows: according to the vehicle door welding process, the vehicle door is produced through the process, so that the vehicle door is higher in strength, stronger in anti-collision force and simpler and more convenient in manufacturing process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a door lock reinforcement plate according to the present invention;
FIG. 2 is a schematic structural view of a door inner panel welding assembly according to the present invention;
FIG. 3 is a schematic view of a first robot weld of the present invention;
FIG. 4 is a schematic view of a second robot weld of the present invention;
FIG. 5 is a schematic view of a third robot weld of the present invention;
FIG. 6 is a schematic structural view of an impact beam assembly and an outer panel reinforcement plate assembled with the door inner panel welding assembly according to the present invention;
FIG. 7 is a schematic view of a fourth robot weld of the present invention;
FIG. 8 is a schematic view of a fifth robot weld of the present invention;
FIG. 9 is a schematic view of a sixth robot weld of the present invention;
FIG. 10 is a schematic view of the outer door panel of the present invention being coated with a cushion gum;
FIG. 11 is a schematic view of the edge folding glue applied to the inner panel of the vehicle door in the invention;
FIG. 12 is a schematic view of a ninth robot weld of the present invention;
FIG. 13 is a schematic view of the present invention showing the construction of the upper and lower hinge assemblies.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention is described below with reference to fig. 1-13:
a welding process for a vehicle door comprises the following steps:
step 1: through visual inspection or touch, whether parts have visible obvious appearance defects such as cracks, bruises and the like is checked, after the requirements of smooth edges, no thorn edges, waves and craters are met, the welding assembly of the inner door panel 4 is assembled by using a station fixture according to a certain assembly sequence, wherein the welding assembly of the inner door panel 4 comprises the inner door panel 4, a door hinge reinforcing plate 8, a first nut hinge 10, a second nut hinge 11, a first door frame assembly 12, a second door frame assembly 13, a door window frame 14, a door triangular window supporting plate 15 and a door lock reinforcing plate 16, and the assembly sequence is shown in fig. 2, wherein the assembly sequence is the first door frame assembly 12, the door window frame 14, the second door frame assembly 13, the door triangular window supporting plate 15, the door lock reinforcing plate 16, the door hinge reinforcing plate 8, the first nut hinge 10 and the second nut hinge 11.
Before assembly, the door lock reinforcement plate 16 is first subjected to a treatment of applying a damping paste 21, as shown in fig. 1. And (3) connecting a glue gun by using a glue coating pump, wherein the glue gun comprises a glue gun nozzle, the glue outlet pressure is 15-25MPa, the diameter of the glue gun nozzle is 2.0mm, and the diameter of the glue gun nozzle is measured by using a caliper. Visually checking whether the door lock reinforcing plate 16 has no obvious appearance defect, placing the door lock reinforcing plate on a door lock reinforcing plate gluing table, visually checking whether the glue type and the quality guarantee period meet the requirements, manually coating damping glue 21 on the door lock reinforcing plate 16, wherein the glue diameter is more than 3mm, performing sample detection by using a steel plate ruler, sampling 1 piece for every 5 pieces, recording the detection result, and adjusting according to the result; the glue height is more than 0.5mm, a steel plate ruler is used for sample detection, 1 sample is sampled every 5 pieces, the detection result is recorded, and the glue height is adjusted according to the result.
Step 2: three-step spot welding
The first robot operates a welding tongs to weld, and 9 points are welded on the left side of the welding assembly of the inner door panel 4, wherein the points are respectively 101, 102, 103, 104, 105, 106, 107, 108 and 109; wherein the 9 welding points comprise 2 half-failure points and 7 full-failure points, and each 30 vehicles perform half-failure inspection on the designated point on a half-failure inspection table, as shown in fig. 3.
The 9 points welded by the first robot are respectively 2 welding points 101 and 102 of the door lock reinforcing plate 16 and the door inner plate 4, 2 welding points 103 and 104 of the bottom end of the first window frame assembly 12 and the door inner plate 4, 2 welding points 105 and 106 of the door quarter window supporting plate 15 and the door inner plate 4, 1 welding point 107 of the middle part of the first window frame assembly 12 and the door inner plate 4, 1 welding point 108 of the top end of the first window frame assembly 12 and the door window frame 14 and the door inner plate 4, and 1 welding point 109 of the left side of the door window frame 14 and the door inner plate 4, wherein one of the 2 welding points of the door lock reinforcing plate 16 and the door inner plate 4 on the lower side is a half-broken point 101, and one of the 2 welding points of the bottom end of the first window frame assembly 12 and the door inner plate 4 on the left side is a half-broken point 103.
The second robot operates a welding tongs to weld, and 9 points are welded on the right side of the welding assembly of the inner door panel 4, wherein the points are respectively 201, 202, 203, 204, 205, 206, 207, 208 and 209; wherein the 9 welding points comprise 1 half-failure point and 8 full-failure points, and each 30 vehicles perform half-failure inspection on the designated point on the half-failure inspection table, as shown in fig. 4.
The positions of 9 points welded by the second robot are respectively 1 welding point 201 between the middle part of the door sash 14 and the door inner plate 4, 1 welding point 202 between the right side of the door sash 14 and the door inner plate 4, 1 welding point 203 between the right end of the door sash 14 and the door inner plate 4 and the second sash assembly 13, 1 welding point 204 between the middle part of the second sash assembly 13 and the door inner plate 4, 1 welding point 205 between the top part of the door hinge reinforcing plate 8 and the second sash assembly 13 and the door inner plate 4, 2 welding points 206 and 207 between the middle part and the bottom part of the door hinge reinforcing plate 8 and the door inner plate 4, 1 welding point 208 between the first nut hinge 10 and the door hinge reinforcing plate 8, and 1 welding point 209 between the second nut hinge 11 and the door hinge reinforcing plate 8, wherein the welding point between the bottom part of the door hinge reinforcing plate 8 and the door inner plate 4 is a half-broken point 207;
and the third robot grabs the part from the inner plate assembly fixture to the fixed welding tongs, and performs repair welding at 7 points, namely 301, 302, 303, 304, 305, 306 and 307, wherein the 7 repair welding points comprise 1 half-damage point and 6 full-damage points, and half-damage inspection is performed on the designated point on a half-damage inspection table every 30 vehicles, as shown in fig. 5.
The positions of 7 points welded by the third robot are respectively 2 welding points 301 and 302 of the door lock reinforcing plate 16 and the door inner plate 4, 1 welding point 303 of the top of the door hinge reinforcing plate 8, the second window frame assembly 13 and the door inner plate 4, 2 welding points 304 and 305 of the middle of the door hinge reinforcing plate 8 and the door inner plate 4, 1 welding point 306 of the first nut hinge 10 and the door hinge reinforcing plate 8, and 1 welding point 307 of the second nut hinge 11 and the door hinge reinforcing plate 8, wherein 1 welding point of the top of the door hinge reinforcing plate 8, the second window frame assembly 13 and the door inner plate 4 is a half-breaking point 303.
In the welding process, the welding controller, the grabbing robot and the filing machine are used for carrying out on a station clamp of the inner door plate 4 assembly and a semi-destructive table shared by the inner door plate 4 assembly. Specifically, the welding current: the indicated value of the welding standard parameter table is +1-0.5 KA; welding time: the indicated value of the welding standard parameter table is +/-1 cyc; electrode pressure: the indicated value of the welding specification parameter table is +0.245-0.490 KN; diameter of electrode cap after filing: 6+0.5-1.0 mm; the surface of the electrode is not oxidized; part cleanliness: the spot welding position of the part has no oil stain or impurities; and (3) cooling: the reading of the flowmeter is more than 6; the clamp state: the clamp cylinder is flexible in action and in a clamping state; fitting parts: in the clamping state of the clamp, the pressure head, the positioning surface and the part are attached without a gap; appearance of welding spots: the welding spot on the surface has no burr, no distortion and flatness; a clamp: the locating pin wears Max0.2 and the locating surface wears Max0.5.
And step 3: placing the welding assembly of the inner door panel 4 on punching equipment by a fourth robot, punching, taking a workpiece from the punching equipment, and transferring the workpiece to the next station;
and 4, step 4: and assembling the first outer plate reinforcing plate 17, the second outer plate reinforcing plate 22 and the impact beam assembly 18 to the welding assembly of the vehicle door inner plate 4 in a welding clamp state according to a certain assembling sequence. The welding assembly of the parts of the inner door panel 4 is composed of an impact beam assembly 18, a first outer panel reinforcing plate 17 and a second outer panel reinforcing plate 22 in sequence, and the impact beam assembly 18, the first outer panel reinforcing plate 17 and the second outer panel reinforcing plate 22 are sequentially arranged from bottom to top as shown in fig. 6.
And 5: three-step spot welding
After the fixture is clamped, the fifth robot operates a welding tongs to weld, 8 points are welded on the right side of the welding assembly of the inner door panel 4, namely 501, 502, 503, 504, 505, 506, 507 and 508, wherein the 8 welding points comprise 2 half-failure points and 6 full-failure points, and half-failure inspection is carried out on the designated points on a half-failure inspection table every 30 vehicles, as shown in fig. 7.
The 8 points welded by the fifth robot are respectively 2 welding points 501 and 502 of the door sash 14 and the door inner panel 4, 1 welding point 503 of the first door sash assembly 12 and the door inner panel 4, 2 welding points 504 and 505 of the right end of the second outer panel reinforcing plate 22 and the door inner panel 4, 1 welding point 506 of the right end of the first outer panel reinforcing plate 17 and the door inner panel 4, and 2 welding points 507 and 508 of the right end of the impact beam assembly 18 and the door inner panel 4, wherein the 1 welding point of the first door sash assembly 12 and the door inner panel 4 is a half-breaking point 503, and the 1 welding point of the right end of the first outer panel reinforcing plate 17 and the door inner panel 4 is a half-breaking point 506.
After the clamps are clamped, the sixth robot operates a welding tongs to weld, and 7 points are welded on the left side of the welding assembly of the inner door panel 4, wherein the points are 601, 602, 603, 604, 605, 606 and 607, respectively, the 7 welding points comprise 1 half-failure point and 6 full-failure points, and half-failure inspection is performed on the designated points on a half-failure inspection table every 30 vehicles, as shown in fig. 8.
The welding positions of the sixth robot at 7 points are respectively 1 welding point 601 of the door hinge reinforcing plate 8 and the door inner plate 4, 2 welding points 602 and 603 of the left end of the anti-collision beam assembly 18 and the door hinge reinforcing plate 8, 1 welding point 604 of the left end of the first outer plate reinforcing plate 17 and the door hinge reinforcing plate 8, 1 welding point 605 of the door hinge reinforcing plate 8 and the door inner plate 4, 1 welding point 606 of the left end of the second outer plate reinforcing plate 22 and the door hinge reinforcing plate 8, and 1 welding point 607 of the second window frame assembly 13 and the door inner plate 4, wherein 1 welding point of the first outer plate reinforcing plate 17 and the door hinge reinforcing plate 8 is a half-breaking point 604.
The seventh robot operates the welding tongs to perform repair welding at 10 points, namely 701, 702, 703, 704, 705, 706, 707, 708, 709 and 7010, wherein the 10 points are all full-damage points, and each 30 vehicles perform half-damage inspection on the appointed point on a half-damage inspection table, as shown in fig. 9;
the seventh robot welds 10 points and is respectively 1 welding point 701 of second outside plate reinforcing plate 22 left end and door hinge reinforcing plate 8, 1 welding point 702 of first outside plate reinforcing plate 17 left end and door hinge reinforcing plate 8, 2 welding points 703, 704 of door hinge reinforcing plate 8 and door inner panel 4, 2 welding points 705, 706 of crashproof roof beam assembly 18 left end and door hinge reinforcing plate 8, 1 welding point 707 of first outside plate reinforcing plate 17 right end and door inner panel 4, 2 welding points 708, 709 of crashproof roof beam assembly 18 right end and door inner panel 4, 1 welding point 7010 of door sash 14 left end and door inner panel 4.
In the welding process, the welding controller, the grabbing robot and the filing machine are used for carrying out on a station clamp of the inner door plate 4 assembly and a semi-destructive table shared by the inner door plate 4 assembly. Specifically, the welding current: the indicated value of the welding standard parameter table is +1-0.5 KA; welding time: the indicated value of the welding standard parameter table is +/-1 cyc; electrode pressure: the indicated value of the welding specification parameter table is +0.245-0.490 KN; diameter of electrode cap after filing: 6+0.5-1.0 mm; the surface of the electrode is not oxidized; part cleanliness: the spot welding position of the part has no oil stain or impurities; and (3) cooling: the reading of the flowmeter is more than 6; the clamp state: the clamp cylinder is flexible in action and in a clamping state; fitting parts: in the clamping state of the clamp, the pressure head, the positioning surface and the part are attached without a gap; appearance of welding spots: the welding spot on the surface has no burr, no distortion and flatness; a clamp: the locating pin wears Max0.2 and the locating surface wears Max0.5.
Step 6: after the outer door plate 23 is coated with the shock absorption glue 19 and the inner door plate 4 is coated with the hemming glue 20, the inner door plate 4 and the outer door plate 23 are combined, the eighth robot grabs and lifts the combined door assembly, and the door assembly is placed into a pressing mold for pressing, as shown in fig. 10 and 11
And 7: after the pressing is completed, the ninth robot grabs the vehicle door assembly to the fixed welding tongs for repair welding at 10 points, which are 901, 902, 903, 904, 905, 906, 907, 908 and 909 respectively. 10 of the points are full-failure points, and half-failure inspection is performed on the designated point every 30 vehicles, as shown in fig. 12.
And 8: the upper hinge assembly 24 and the lower hinge assembly 25 are bolted to the inside of the door assembly with a pneumatic trigger, as shown in fig. 13.
And step 9: and placing the vehicle door assembly on a grinding table, checking whether appearance defects such as burrs exist, and repairing the defect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A vehicle door welding process is characterized by comprising the following steps:
step 1: assembling a vehicle door inner plate welding assembly according to a certain assembling sequence, wherein the vehicle door inner plate welding assembly comprises a vehicle door inner plate, a vehicle door hinge reinforcing plate, a first nut hinge, a second nut hinge, a first vehicle window frame assembly, a second vehicle window frame assembly, a vehicle door window frame, a vehicle door triangular window supporting plate and a vehicle door lock reinforcing plate;
step 2: three-step spot welding
The first robot operates a welding tongs to weld, 9 points are welded on the left side of the welding assembly of the inner plate of the vehicle door, wherein the 9 welding points comprise 2 semi-failure points and 7 full-failure points, and each 30 vehicles carry out one-time semi-failure inspection on the appointed point on a semi-failure inspection table;
the second robot operates a welding tongs to weld, 9 points are welded on the right side of the welding assembly of the inner plate of the vehicle door, wherein the 9 welding points comprise 1 half-damage point and 8 full-damage points, and half-damage inspection is performed on the appointed point on a half-damage inspection table once every 30 vehicles;
a third robot grabs parts from the inner plate assembly fixture to a fixed welding tongs and performs repair welding for 7 points, wherein the 7 repair welding points comprise 1 half-damage point and 6 full-damage points, and half-damage inspection is performed on the appointed point on a half-damage inspection table once every 30 vehicles;
and step 3: placing the vehicle door inner plate welding assembly to punching equipment by a fourth robot, performing punching treatment, taking a workpiece from the punching equipment, and transferring the workpiece to the next station;
and 4, step 4: assembling a first outer plate reinforcing plate, a second outer plate reinforcing plate and an anti-collision beam assembly to a welding assembly of the vehicle door inner plate in a welding and clamping state according to a certain assembling sequence;
and 5: three-step spot welding
After the clamp is clamped, a fifth robot operates a welding tongs to weld, 8 points are welded on the right side of the welding assembly of the inner plate of the vehicle door, wherein 8 welding points comprise 2 semi-failure points and 6 full-failure points, and semi-failure inspection is performed on a designated point on a semi-failure inspection table every 30 vehicles;
after the clamp is clamped, a sixth robot operates a welding tongs to weld, 7 points are welded on the left side of the welding assembly of the inner plate of the vehicle door, wherein the 7 welding points comprise 1 half-damage point and 6 full-damage points, and half-damage inspection is performed on the appointed point on a half-damage inspection table once every 30 vehicles;
the seventh robot operates the welding tongs to perform repair welding for 10 points, wherein the 10 points are all full-damage points, and half-damage inspection is performed on the appointed point once on a half-damage inspection table every 30 vehicles;
step 6: after the outer door plate is coated with the shock absorption glue and the inner door plate is coated with the hemming glue, the inner door plate and the outer door plate are combined, and the eighth robot grabs and lifts the combined door assembly and places the door assembly into a pressing mold for pressing;
and 7: after the pressing is finished, the ninth robot grabs the vehicle door assembly to the fixed welding tongs for repair welding for 10 points, wherein the 10 points are all full-damage points, and half-damage inspection is carried out on the appointed points every 30 vehicles;
and 8: assembling the upper hinge assembly and the lower hinge assembly on the inner side of the vehicle door assembly through bolts by using a pneumatic wrench;
and step 9: and placing the vehicle door assembly on a grinding table, checking whether appearance defects such as burrs exist, and repairing the defect.
2. The welding process for the vehicle door as claimed in claim 1, wherein the assembling of the parts on the inner panel of the vehicle door in step 1 is performed by a first window frame assembly, a door window frame, a second window frame assembly, a door quarter window support plate, a door lock reinforcing plate, a door hinge reinforcing plate, a first nut hinge and a second nut hinge.
3. A vehicle door welding process according to claim 1, wherein in the step 1, the reinforcing plate of the vehicle door lock is coated with damping glue.
4. A vehicle door welding process according to claim 1, wherein in the step 4, the parts are assembled on the vehicle door inner panel welding assembly in sequence of an anti-collision beam assembly, a first outer panel reinforcing plate and a second outer panel reinforcing plate, and the anti-collision beam assembly, the first outer panel reinforcing plate and the second outer panel reinforcing plate are sequentially arranged from bottom to top.
5. A vehicle door welding process according to claim 1, wherein in step 2:
the positions of 9 points welded by the first robot are respectively 2 welding points of a door lock reinforcing plate and a door inner plate, 2 welding points of the bottom end of a first door frame assembly and the door inner plate, 2 welding points of a door triangular window supporting plate and the door inner plate, 1 welding point of the middle part of the first door frame assembly and the door inner plate, 1 welding point of the top end of the first door frame assembly and a door window frame, and 1 welding point of the left side of the door window frame and the door inner plate, wherein one of the 2 welding points of the door lock reinforcing plate and the door inner plate, which is positioned at the lower side, is a half-failure point, and one of the 2 welding points of the bottom end of the first door frame assembly and the door inner plate, which is positioned at the left side;
the positions of 9 points welded by the second robot are respectively 1 welding point of the middle part of the door sash and the door inner plate, 1 welding point of the right side of the door sash and the door inner plate, 1 welding point of the right end of the door sash and the second door sash assembly, 1 welding point of the middle part of the second door sash assembly and the door inner plate, 1 welding point of the top part of the door hinge reinforcing plate and the second door sash assembly, 2 welding points of the middle part and the bottom part of the door hinge reinforcing plate and the door inner plate, 1 welding point of the first nut hinge and the door hinge reinforcing plate, and 1 welding point of the second nut hinge and the door hinge reinforcing plate, wherein the welding point of the bottom part of the door hinge reinforcing plate and the door inner plate is a half-breaking point;
the position of 7 points of third robot welded is 2 welding points of door lock reinforcing plate and door inner panel respectively, 1 welding point of door hinge reinforcing plate top and second door window frame assembly, 2 welding points of door hinge reinforcing plate middle part and door inner panel, 1 welding point of first nut hinge and door hinge reinforcing plate, 1 welding point of second nut hinge and door hinge reinforcing plate, wherein 1 welding point of door hinge reinforcing plate top and second door window frame assembly is the point of partly destroying.
6. A vehicle door welding process according to claim 1, wherein in step 5:
the positions of 8 points welded by the fifth robot are respectively 2 welding points of a door window frame and a door inner plate, 1 welding point of a first door window frame assembly and the door inner plate, 2 welding points of the right end of a second outer plate reinforcing plate and the door inner plate, 1 welding point of the right end of a first outer plate reinforcing plate and the door inner plate, and 2 welding points of the right end of an anti-collision beam assembly and the door inner plate, wherein 1 welding point of the first door window frame assembly and the door inner plate is a semi-failure point, and 1 welding point of the right end of the first outer plate reinforcing plate and the door inner plate is a semi-failure point;
the positions of 7 points welded by the sixth robot are respectively 1 welding point of the door hinge reinforcing plate and the door inner plate, 2 welding points of the left end of the anti-collision beam assembly and the door hinge reinforcing plate, 1 welding point of the left end of the first outer plate reinforcing plate and the door hinge reinforcing plate, 1 welding point of the door hinge reinforcing plate and the door inner plate, 1 welding point of the left end of the second outer plate reinforcing plate and the door hinge reinforcing plate, and 1 welding point of the second window frame assembly and the door inner plate, wherein 1 welding point of the first outer plate reinforcing plate and the door hinge reinforcing plate is a semi-failure point;
the position of the welded 10 points of the seventh robot is 1 welding point of the left end of the second outer plate reinforcing plate and the door hinge reinforcing plate, 1 welding point of the left end of the first outer plate reinforcing plate and the door hinge reinforcing plate, 2 welding points of the door hinge reinforcing plate and the door inner plate, 2 welding points of the left end of the anti-collision beam assembly and the door hinge reinforcing plate, 1 welding point of the right end of the first outer plate reinforcing plate and the door inner plate, 2 welding points of the right end of the anti-collision beam assembly and the door inner plate, and 1 welding point of the left end of the door window frame and the door inner plate.
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Cited By (1)
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| CN115351373A (en) * | 2022-08-30 | 2022-11-18 | 上汽通用五菱汽车股份有限公司 | Size matching control method for rolling window frame type side door |
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| CN112548504B (en) | 2022-08-09 |
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