CN109500615B - Continuous forming device for forming connecting column on automobile - Google Patents
Continuous forming device for forming connecting column on automobile Download PDFInfo
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- CN109500615B CN109500615B CN201811542815.7A CN201811542815A CN109500615B CN 109500615 B CN109500615 B CN 109500615B CN 201811542815 A CN201811542815 A CN 201811542815A CN 109500615 B CN109500615 B CN 109500615B
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- 238000003466 welding Methods 0.000 claims abstract description 68
- 239000002184 metal Substances 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000007493 shaping process Methods 0.000 claims description 57
- 238000001816 cooling Methods 0.000 claims description 50
- 238000013000 roll bending Methods 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000005520 cutting process Methods 0.000 claims description 22
- 238000005452 bending Methods 0.000 claims description 18
- 238000009423 ventilation Methods 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 14
- 238000003698 laser cutting Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 95
- 238000012545 processing Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 4
- 229910000797 Ultra-high-strength steel Inorganic materials 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
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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
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/06—Metal-working plant comprising a number of associated machines or apparatus
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention provides a continuous forming device for forming a connecting column on an automobile, which comprises a plurality of forming roller groups, wherein the forming roller groups are used for gradually forming two symmetrical convex parts on two edges of a metal sheet along the same side of the metal sheet longitudinally, one end of each convex part is bent to the same side to form an arc section, the end surfaces of the two arc sections are contacted, the middle part of the metal sheet forms a horizontal section, and the two convex parts form an arc connecting section between the two convex parts and the horizontal section by the forming roller groups in the forming process to form a continuous beam which is approximately triangular; the welding device is arranged at the tail ends of the forming roller groups and is used for welding the end surfaces of the two arc sections, which are contacted together; the welding end of the welding device is connected with the end faces of the two arc-shaped sections or the extension lines of the end faces of the two arc-shaped sections. The continuous forming device for forming the connecting column on the automobile is used for efficiently producing the A column of the automobile, and has high product quality and improved strength of the A column.
Description
Technical Field
The invention relates to the technical field of transportation means, in particular to a forming device for an automobile A column.
Background
The A column is used as a framework of an automobile, the connecting columns are used for connecting a roof and a front cabin at the left front side and the right front side of the automobile, a part of turning vision, namely a blind area, is shielded above an engine cabin and a cockpit, the blind area is determined by the structure of the automobile body, the size of the blind area of the A column is determined by the driver seat at the left side, so that the blind area of the A column at the left side is far larger than the right side, the left blind area which is formed is about 6.8 degrees, the right side is about 2.3 degrees, the blind area is large, the visual field of a driver is influenced, the risk of traffic accidents exists, the existing automobile parts are mostly formed by adopting a stamping forming mode, for example, a Chinese patent CN101288889 discloses a hot stamping forming process and a forming die of ultrahigh-strength steel part, a Chinese patent CN101486062A discloses a hot forming and trimming integrated process and die, a Chinese patent CN 3A discloses a ultrahigh-strength steel plate stamping processing device, a Chinese patent CN 35A and a die-forming device of ultrahigh-strength steel plate forming device, and a die-forming device of the U-shaped part is more than the conventional U-shaped part, and the U-shaped part is capable of meeting the requirements of forming the high-strength steel plate forming device, and the U-shaped part is high-strength, and the U-shaped part is formed by the manufacturing the device is more than the high-strength and the U-shaped part is more than the die, and the device is capable of forming the U-shaped part is more than the high-shaped, and the device is capable of forming the high-strength plate and the device is capable of forming a device has a high-strength plate.
In addition, CN2016104822235 discloses an automobile A post inner plate assembly, and this A post inner plate assembly's support intensity is great, and when unexpected accident appears, personnel in the cockpit can be fine protected to A post inner plate. The main body structure is stable, the hard impact resistance is good, but the section of the main body structure is generally rectangular, and the problem that the view is blocked greatly also exists when the automobile is applied. The smaller the a-pillar is, the better the driver's view, but the stronger the a-pillar is, the more strong the a-pillar is, from the viewpoint of the vehicle body, the more strong the driver's safety is. Therefore, there is an urgent need for a processing apparatus for processing a small-sized a column.
Disclosure of Invention
The invention provides a continuous forming device for forming a connecting column on an automobile, which is used for efficiently producing an automobile A column, ensures that the processing quality of products is consistent, improves the strength of the A column and has less transferring times.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a continuous forming device for forming connecting columns on automobiles comprises forming roller groups, wherein the forming roller groups are used for gradually forming two symmetrical convex parts on two edges of a metal plate longitudinally along the same side of the metal plate, one end of each convex part is bent to the same side to form an arc-shaped section, the end faces of the two arc-shaped sections are contacted, the middle part of the metal plate forms a horizontal section, and the two convex parts form arc-shaped connecting sections between the two convex parts and the horizontal section by a plurality of forming roller groups in the forming process to form a continuous beam which is approximately triangular;
the welding device is arranged at the tail ends of the forming roller groups and is used for welding the end surfaces of the two arc sections, which are contacted together; the welding end of the welding device is connected with the end surfaces of the two arc-shaped sections or the extension lines of the end surfaces of the two arc-shaped sections;
a cooling device installed after the welding device for cooling the welded continuous beam to increase bending strength and shear resistance of the continuous beam;
and the cutting device cuts the cooled continuous beam into beams and columns according to the required length of the product.
And the roll bending device is used for roll bending the middle part of the beam column.
Further, the forming roller set, the welding device, the cooling device and the cutting device are sequentially connected into a production line.
Further, the forming roller set comprises a first roller section and a second roller section, the second roller section is positioned at the tail end of the first roller section, the first roller section and the second roller section are formed by sequentially arranging a plurality of roller frame sets, the first roller section is used for gradually rolling two edges of a metal sheet to the same side of the metal sheet to form an arc section, and the tail end roller of the first roller section is used for forming the arc section into a radius of 7.2 mm; the head end of second roll-in section is to the shaping of arc section to keep the radius R of arc section to be 9.45mm, the head end of second roll-in section is all used for the face shaping to sheet metal to the tail end, forms two protruding sections and a horizontal segment with sheet metal's face gradually, forms the arc linkage segment between horizontal segment both sides and the two protruding sections respectively, and two protruding sections are connected with the arc section respectively, and the tail end of second roll-in section is used for being triangle-shaped with two protruding sections, horizontal segment, arc linkage segment and arc section shaping, and the arc section relative contact at both sides edge.
Further, the first roller section comprises twelve roller frame groups, the twelve roller frame groups are sequentially arranged on the base, the first roller frame group is connected with the power machine and used for conveying the metal plate, the front second to fourth roller frame groups are used for primary forming of the edge of the metal plate, forming portions for gradually forming the edge of the metal plate into arc sections are arranged on the fifth to twelfth roller frames, and the fifth and ninth roller frames are connected with the power machine.
Further, the second roll section comprises ten forming roller frame groups, wherein the ten forming roller frame groups are sequentially arranged on the base, the first forming roller frame group is located at the tail of the first roller section, the second roller section and the first roller section are arranged in a straight line shape, the first forming roller frame group is provided with a second forming part for forming the plate surface of the metal plate into two protruding sections, one horizontal section and an arc connecting section, and the second forming roller frame group to the tenth forming roller frame group are all provided with third forming parts for forming the two protruding sections, one horizontal section, the arc connecting section and the arc sections at the two edges into triangles.
Further, the welding device comprises a high-frequency welding machine, a welding machine slideway and a clamping roller set; the clamping roller set comprises a pushing roller and two positioning rollers; the two positioning rollers are used for supporting the two convex parts; the pushing roller is used for pushing the continuous beam between the two positioning rollers; the welding machine slideway is arranged at one side opposite to the pushing roller; the high-frequency welding machine is arranged on the welding machine slideway in a sliding way along the extending direction of the continuous beam, and the welding gun of the high-frequency welding machine is opposite to the butt joint position of the two arc sections.
Further, the number of the clamping roller sets is two; the positioning rollers on the same side of the two clamping roller groups are respectively and rotatably connected to the same roller positioning frame; the two pushing rollers are connected to the same roller positioning frame and move along the welding gun direction under the action of the telescopic cylinder.
Further, 2-5 groups of shaping roller sets are arranged at the tail part of the clamping roller set, each group of shaping roller sets comprises a plate-shaped shaping plate and three shaping wheels, a triangular through hole is formed in the middle of the plate-shaped shaping plate, the three shaping wheels are all arranged on the plate-shaped shaping plate at the inlet of the triangular through hole, the three shaping wheels are arranged in a triangular mode, and the three shaping wheels enclose a triangular vacancy which can enable a triangular continuous beam to pass through.
Further, the cooling device comprises a water cooling box and an air cooling box positioned at an outlet of the water cooling box, the water cooling box is positioned behind the welding device, and the water cooling box comprises a water spray pipe, a cold flow inner cavity and a speed reduction roller set; the speed reduction roller set is used for conveying the continuous beam in the cold flow inner cavity; the spray gun of the spray pipe points to the continuous beam on the speed reducing roller group; a drain pipe lower than the continuous beam is arranged on the cold flow inner cavity; one end of the drain pipe is connected with a drain or water storage device; the air cooling box comprises an air supply mechanism and a plurality of ventilation pipes; the ventilation pipe is arranged along the side wall of the air cooling box and is provided with a plurality of air outlet holes communicated with the air cooling box, and the other end of the ventilation pipe is communicated with the air supply mechanism.
Further, the cutting device comprises a laser cutting machine and a sectional roller set; the sectional roller set is connected with a PLC controller and is used for controlling the sectional conveying of the continuous beam; the cutting gun of the laser cutting machine points to the continuous beam on the sectional roller set and cuts downwards along one side of the arc section of the continuous beam; and the control end of the laser cutting machine is connected with the PLC.
Further, a straightening device is arranged between the cutting device and the cooling device and used for straightening and shaping the cooled continuous beam, the straightening device comprises a plurality of groups of straightening roller groups, each group of straightening roller groups mainly comprises three straightening rollers and a roller frame, the three straightening rollers are all arranged on the roller frame through wheel shafts and are in triangular arrangement and correspond to three edges of the continuous beam.
Further, the roll bending device comprises a movable roll set, a fixed roll set, a conveying roll set, a first rotating structure and a second rotating structure which are sequentially arranged along an outlet of the roll bending device; the fixed roller set is used for positioning the continuous beam; the movable roller set is arranged at the outlet of the roller bending device and is opposite to the fixed roller set; the conveying roller set is used for conveying the beam column; and the movable roller group swings up and down and left and right through the first rotating structure and the second rotating structure respectively so as to realize the roller bending of the beam column.
Further, the first rotating structure is a rotating bracket which is connected to one side of the outlet of the roll bending device along the triangular annular direction of the beam column, and is connected with a driving device for controlling the rotation of the rotating bracket; the second rotating structure is a connecting plate which is longitudinally and rotatably connected to the rotating bracket along the beam column, and the rotation of the connecting plate is controlled by the driving device; the movable roller group is connected in a mounting through hole arranged in the connecting plate; the beam column is transmitted among the movable roller set, the fixed roller set and the transmission roller set through the mounting through holes.
Further, the movable roller group comprises three clamping rollers; the clamping rollers are respectively arranged in a triangle, three clamping rollers transversely enclose a triangle vacancy which can enable the beam column to pass through, and two ends of the clamping rollers are connected in the mounting through hole through the wheel shaft.
Further, the automatic feeding machine comprises an uncoiler and a leveling machine positioned at the discharge end of the uncoiler, wherein a feeding roller is arranged at the feed end of the leveling machine, a discharging roller is arranged at the discharge end of the leveling machine, and a transmission roller is arranged between the discharge end of the leveling machine and the feeding end of the forming roller set.
According to the continuous forming device for forming the connecting column on the automobile, disclosed by the invention, the metal plate is processed into the continuous beam with the cross section being approximately triangular, compared with the hydraulic forming, the processing cost is saved, the strength of the connecting column is improved, and the barrier generated on the visual field during driving is reduced; because the device integrates forming, welding, cooling, cutting and roll bending, the machining and transferring times are reduced, the machining efficiency of the connecting column is accelerated, and the machining quality of the connecting column is improved; the metal plate is gradually formed and processed through the forming roller set, so that the processing precision is high; and the continuous beam is rapidly cooled after welding, so that the problems of uneven and uniform shearing surface or roll bending deformation of the continuous beam due to instability after high-temperature welding are prevented.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a side view of a continuous forming apparatus for forming a connecting column on an automobile;
FIG. 2 is a top view of a continuous forming apparatus for forming a connecting column on an automobile;
FIG. 3 is a schematic cross-sectional view of a continuous beam;
FIG. 4 is a schematic view of the process of the present invention;
FIG. 5 is a schematic diagram of a welding apparatus;
FIG. 6 is a schematic view of a plate-shaped shaping plate;
FIG. 7 is a schematic view of a roll bending apparatus;
fig. 8 is a schematic view of a beam column after roll bending.
The reference numerals include: the first roll press section 1, the first roll press section 2, the welding device 3, the water cooling tank 4, the air cooling tank 5, the cutting device 6, the roll bending device 7, the continuous beam 8, the forming roll set 9, the high-frequency welding machine 10, the welding machine slideway 11, the pushing roll 12, the positioning roll 13, the shaping roll set 14, the plate-shaped shaping plate 15, the shaping roll 16, the triangular through hole 17, the spray pipe 41, the cold flow cavity 42, the drain pipe 43, the speed reducing roll set 44, the air dryer 51, the ventilation pipe 52, the laser cutting machine 61, the segmented roll set 62, the moving roll set 71, the fixed roll set 72, the rotating bracket 73, the connecting plate 74, the conveying roll set 75, the first telescopic motor 76, the second telescopic motor 77, the conveying roll set 78, the protruding part 81, the horizontal segment 82, the arc connecting segment 83, the arc segment 84, the connecting rod 122, the telescopic cylinder 123 and the roll positioning frame 13.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present invention more clear and easy to understand, the present invention is further described below with reference to the accompanying drawings and the detailed description:
1-2, a continuous forming device for forming a connecting column on an automobile comprises a plurality of forming roller groups 9, wherein the forming roller groups 9 are used for gradually forming two symmetrical convex parts 81 on two edges of a metal plate longitudinally along the same side of the metal plate, as shown in a cross-section schematic view of a continuous beam 8, one end of each convex part 81 is bent to the same side to form an arc-shaped section 84, the end faces of the two arc-shaped sections 84 are contacted, the middle part of the metal plate forms a horizontal section 82, and the arc-shaped connecting sections 83 are formed between the two convex parts 81 and the horizontal section 82 by the plurality of forming roller groups 9 in the forming process of the two convex parts 81 so as to form a continuous beam 8 with a generally triangular shape;
the welding device 3 is arranged at the tail ends of the forming roller groups 9 and is used for welding the end surfaces of the two arc-shaped sections 84, which are contacted; the welding end of the welding device 3 is connected with the end surfaces of the two arc-shaped sections 84 or the extension lines of the end surfaces of the two arc-shaped sections 84;
a cooling device installed after the welding device 3 for cooling the welded continuous beam 8 to increase the bending strength and shear resistance of the continuous beam 8;
and a cutting device 6 for cutting the cooled continuous beam 8 to form a beam column at a required length.
And the roll bending device 7 is used for roll bending the middle part of the beam column.
The forming roller set 9 comprises a first roller section and a second roller section, the second roller section is positioned at the tail end of the first roller section, the first roller section and the second roller section are formed by sequentially arranging a plurality of roller frame sets, the first roller section 21 is used for gradually rolling two edges of a metal plate material to the same side of the metal plate material to form an arc-shaped section 84, and the tail end roller of the first roller section 21 is used for forming the arc-shaped section 84 into a radius of 7.2 mm; the head end of second roll-in section is to the shaping of arc section 84 to keep the radius R of arc section 84 to be 9.45mm, the head end of second roll-in section is all used for forming sheet metal's face to the tail end, form two protruding sections and a horizontal segment 82 with sheet metal's face gradually, form arc linkage segment 83 between horizontal segment 82 both sides and the two protruding sections respectively, and two protruding sections are connected with arc section 84 respectively, the tail end of second roll-in section is used for forming two protruding sections, horizontal segment 82, arc linkage segment 83 and arc section 84 into triangle-shaped, and the arc section 84 relative contact of both sides.
In the forming roller set 9, each roller frame set in the first roller section and the second roller section comprises two rollers, the two rollers are respectively arranged on a mounting frame, the mounting frame is fixed on a base, the mounting frame is composed of two vertical edges and one horizontal edge, the horizontal edge is fixed at the upper ends of the two vertical edges, the lower ends of the two vertical edges are fixed with the base to form an inverted U-shaped mounting frame, the two rollers are arranged in the middle of the mounting frame in a vertical mode through mounting shafts, a gap allowing a metal plate with the length of 2cm to pass through is reserved between the two rollers, when the metal plate passes through the first roller section and the second roller section, rolling forming is carried out by the rollers, each roller in the first roller section 21 is provided with a forming part capable of gradually rolling two edges of the metal plate into an arc section 84 through S2-S12 flow schematic in FIG. 4, and the forming part of the roller at the tail end of the first roller section can form the arc section 84 into a radius of 7.2 mm;
the shaping part and the shaping part are arranged on the roller of the roller frame group at the head end of the second roller section, the arc-shaped section 84 with the radius of 7.2mm can be shaped into the radius R of 9.45mm through the shaping part, meanwhile, the metal sheet is preliminarily shaped into two convex sections and one horizontal section 82 through the shaping part (see S13 in fig. 4), then the roller shaping part of the roller frame group from the head end to the tail end of the second roller section gradually rolls the two convex sections and the one horizontal section 82 through the flow of S14-S23 in fig. 4, the arc-shaped sections 84 at the upper ends of the two convex sections are butted to form a triangular continuous beam 8, and then the butted part of the triangular continuous beam 8 is welded by the high-frequency welding machine 10.
The first roller section comprises twelve roller frame groups, the twelve roller frame groups are sequentially arranged on the base, the first roller frame group is connected with the power machine and used for conveying the metal sheet, the front second to fourth roller frame groups are used for primary forming of the edge of the metal sheet, the fifth to twelfth roller frames are all provided with forming parts for gradually forming the edge of the metal sheet into an arc section 84, and the fifth and ninth roller frames are connected with the power machine.
At the rear end of each roller frame group, a roller frame group for shaping can be connected, so that the shaping quality is improved, namely the roller frame group in the first roller section can also be more than twelve. The fifth and ninth rollers are connected with the power machine to provide conveying power for the corresponding rollers, so that the continuous beam 8 after forming is convenient to convey.
The second rolling section comprises ten forming roller frame groups, wherein the ten forming roller frame groups are sequentially arranged on the base, the first forming roller frame group is positioned at the tail part of the first roller section, the second roller section and the first roller section are arranged in a straight line shape, the first forming roller frame group is provided with a second forming part for forming the plate surface of the metal plate into two convex sections, one horizontal section 82 and an arc connecting section 83, and the second forming roller frame groups to the tenth forming roller frame group are all provided with third forming parts for forming the two convex sections, one horizontal section 82, the arc connecting section 83 and the arc sections 84 at two edges into triangles.
The ten forming roller groups 9 of the second rolling section are respectively rolled up and down through two rollers, the second forming part arranged on the first forming roller frame group rolls up and down the middle part of the metal plate with the arc-shaped section 84, two convex sections, one horizontal section 82 and an arc-shaped connecting section 83 are gradually formed, the third forming part of the second forming roller frame group to the tenth forming roller frame group bends the arc-shaped connecting section 83 and the convex sections gradually, so that the two convex parts 81 are close to one side, the arc-shaped sections 84 at the two ends are contacted, the triangle is gradually formed, and the arc-shaped connecting section 83 and the convex sections of the second forming roller frame group are prevented from being excessively bent to cause the continuous beam 8 to be torn. The third forming section rolls the arc-shaped connecting section 83 and the ten forming roller frame sets of the second roll section may also be provided with forming sections of the first roll section 21 for maintaining the shaping of the arc-shaped section 84.
As shown in fig. 4, the welding device 3 comprises a high-frequency welding machine 10, a welding machine slideway 11 and a clamping roller set; the clamping roller set comprises a pushing roller 12 and two positioning rollers 13; two positioning rollers 13 for supporting the two convex portions 81; the pushing roller 12 is used for pushing the continuous beam 8 between the two positioning rollers 13; the welding machine slideway 11 is arranged on the opposite side of the pushing roller 12; the high-frequency welding machine 10 is arranged on the welding machine slideway 11 in a sliding way along the extending direction of the continuous beam 8, and the welding gun of the high-frequency welding machine is opposite to the joint of the two arc sections.
After the continuous beam 8 is positioned by the clamping roller set, the high-frequency welding machine 10 slides along the extending direction of the continuous beam 8 to sequentially weld the contact end surfaces of the two arc sections, so that the problem of uneven welding caused by unstable interval between the two arc sections is prevented.
The number of the clamping roller sets is two; the positioning rollers 13 on the same side of the two clamping roller groups are respectively and rotatably connected to the same roller positioning frame 13; the two pushing rollers 12 move in the welding gun direction and fix the continuous beam 8 by the connecting rod 122 under the action of the telescopic cylinder 123. The clamping roller sets are used for respectively fixing two ends of the continuous beam 8 through the three rollers, so that the stability of the continuous beam 8 is further enhanced, the two arc-shaped sections are more stable, and the welding strength is improved.
2-5 groups of shaping roller sets 14 are arranged at the tail part of the clamping roller set, each group of shaping roller sets 14 comprises a plate-shaped shaping plate 15 and three shaping wheels 16, as shown in fig. 5, a triangular through hole 17 is formed in the middle of the plate-shaped shaping plate 15, the three shaping wheels 16 are all arranged on the plate-shaped shaping plate 15 at the inlet of the triangular through hole 17, the three shaping wheels 16 are arranged in a triangular transverse mode, and the three shaping wheels 16 encircle a triangular vacancy capable of enabling a triangular continuous beam 8 to pass through.
The triangle-shaped through-hole 17 on the shaping plate is equipped with the groove that sets up along triangle-shaped through-hole 17 three side, the shaft of three shaping wheel 16 transversely connects respectively in the inslot of shaping plate, three shaping wheel 16 enclose into the triangle-shaped vacancy that is less than triangle-shaped through-hole 17, continuous beam 8 gets into triangle-shaped vacancy after the welding, be equipped with corresponding shaping portion on the three shaping wheel 16 of multiunit shaping roller group 14 respectively, second shaping portion, third shaping portion, be used for the roll-in adjustment continuous beam 8 outer wall two bellying, the arc section, arc linkage segment 83 and horizontal segment 82, and set up through the interval of shaping wheel 16, further consolidate the welding of two arc sections.
The cooling device comprises a water cooling box 4 and an air cooling box 5 positioned at the outlet of the water cooling box 4, wherein the water cooling box 4 is positioned behind the welding device 3, and the water cooling box 4 comprises a water spray pipe 41, a cold flow inner cavity 42 and a speed reduction roller set 44; the speed reducing roller set 44 is used for conveying the continuous beam 8 in the cold flow inner cavity 42; the spray gun of the spray pipe 41 points to the continuous beam 8 on the speed reducing roller group 44; the cold flow inner cavity 42 is provided with a drain pipe 43 lower than the continuous beam 8; one end of the drain pipe 43 is connected with a drain or water storage device; the air cooling box 5 comprises an air supply mechanism and a plurality of ventilation pipes 52; the ventilation pipe 52 is arranged along the side wall of the air cooling box 5 and is provided with a plurality of air outlet holes communicated with the air cooling box 5, and the other end of the ventilation pipe 52 is communicated with an air supply mechanism.
The welded continuous beam 8 is cooled and shaped after being shaped by the shaping wheel 16, the arc deformation of the continuous beam 8 caused by high-temperature welding is prevented, the continuous beam 8 is slowly conveyed into the cold flow cavity 42 by the speed reducing roller set 44, the welding position and the integral continuous beam 8 are subjected to repeated water spraying and cooling by the spray pipe 41, the heated water is discharged by the drain pipe 43, the continuous beam 8 is conveyed into the low-temperature environment of the air cooling box 5 after the cold water of the continuous beam 8 is rapidly cooled, and meanwhile, the surface of the continuous beam 8 is dried by the air dryer 51, so that the integral performance of the continuous beam 8 is improved, and the serious deformation during shearing and roll bending is prevented.
The air-conditioner comprises a plurality of ventilation pipes 52, an air supply mechanism and two air dryers 51, wherein the ventilation pipes 52 are respectively arranged on the top inner wall and the bottom inner wall of the air cooling box 5, and the two air dryers are respectively communicated with the ventilation pipes 52 on the top and the bottom of the air cooling box 5. Preferably, the ventilation pipes 52 of the upper and lower layers of the air-cooling box 5 are parallel to and communicate with each other, and the ventilation pipes 52 of the upper and lower layers of the air-cooling box 5 are combined in a grid shape. The ventilation pipes 52 are distributed up and down, so that the internal environment of the air cooling box 5 is cooled, isolation is formed, the interference of the outside air temperature is prevented, and a better cooling and drying effect is achieved.
The cutting device 6 comprises a laser cutter 61 and a segment roller set 62; the sectional roller group 62 is connected with a PLC controller and is used for controlling the sectional conveying of the continuous beam 8; the cutting gun of the laser cutting machine 61 is directed to the continuous beam 8 on the segmented roller set 62 and cuts downwards along one side of the arc segment 84 of the continuous beam 8; the control end of the laser cutting machine 61 is connected with a PLC controller.
The PLC controller performs logic operations, sequential control, timing, counting, arithmetic operations, etc., by inputting a programming code, and controls various types of machines or production processes by digital or analog input/output. The sectional roller set 62 is connected with a power machine, the power machine controls the sectional roller set 62 to stop moving within a certain time through the PLC controller, at the moment, the continuous beam 8 stops at a designated position, then the laser cutting machine 61 cuts downwards along one end of the arc-shaped section 84, so that the two sides of the protruding part are uniformly cut, the power machine is started after cutting, and the sectional roller set 62 sends Liang Zhuyun obtained by cutting to the next roll bending device 7. The PLC controller sends out a driving signal of the segment roller set 62 by judging the working signal of the laser cutting machine 61, so as to control the segment roller set 62 to automatically execute the next transmission cutting action after the continuous beam 8 is cut off.
As shown in fig. 6, the roll bending device 7 comprises a moving roll wheel set 71, a fixed roll wheel set 72, a conveying roll wheel set 7875, a first rotating structure and a second rotating structure, which are sequentially arranged along the outlet of the roll bending device 7; the fixed roller group 72 is used for positioning the continuous beam 8; the movable roller set 71 is arranged at the outlet of the roller bending device 7 and is opposite to the fixed roller set 72; the conveying roller set 7875 is used for conveying the beam column; and the movable roller group 71 swings up and down and left and right respectively through the first rotating structure and the second rotating structure so as to realize the roller bending of the beam column.
The fixed roller set 72 and the conveying roller set 7875 are respectively arranged on the same horizontal line through roller frames and the movable roller set 71, so that a beam column is conveyed towards the fixed roller set 72 along with the conveying roller set 7875 under the drive of a power machine, the movable roller set 71 is connected to a first rotating structure, the left side and the right side of the first rotating structure are rotatably connected to a second rotating structure, the upper end/the lower end of the second rotating structure is rotatably connected with an outlet of the roller bending device 7, when the first rotating structure rotates relative to the roller bending device 7, and the second rotating structure is kept unchanged, one end of the beam column is fixed by the fixed roller set 72, the other end of the beam column swings up and down along with the roller set 71, and swings one roller in sequence along with the conveying roller set 7875 along the transmission direction; when the second rotating structure rotates and the first rotating structure is kept unchanged, the beam column follow-up roller set 71 swings left and right at the same time and sequentially bends towards one swinging side in a certain radian and then stretches out of the outlet of the roller bending device 7; when the first rotating structure and the second rotating structure rotate simultaneously, roll bending of the beam column towards the upper left, the lower left, the upper right and the lower right can be realized, and when the first rotating structure and/or the second rotating structure swing to a certain angle to be fixed, the beam column can be vertically bent or form an arc curve with a specified radius along with the conveying direction.
The first rotating structure is a rotating bracket 73 which is connected to one side of the outlet of the roll bending device 7 along the triangular circumferential direction of the beam column, and is connected with a driving device for controlling the rotation of the rotating bracket; the second rotating structure is a connecting plate 74 which is connected to the rotating bracket 73 along the longitudinal direction of the beam column, and the rotation of the connecting plate is controlled by a driving device; the movable roller group 71 is connected in a mounting through hole arranged in the connecting plate 74; the beam column is transferred between the movable roller group 71, the fixed roller group 72 and the transfer roller group 7875 through the mounting through holes. The swing of the rotating bracket 73 is completed by a telescopic motor connected to the side edge of the rotating bracket 73, and the free end of the rotating bracket 73 swings along with the up-and-down driving of the first telescopic motor 76. The rotation of the connection plate 74 is effected by a second telescopic motor 77 connected to the control end of the connection plate 74.
The free end rotation side of the rotation bracket 73 is connected with a connecting rod 122 driven by a first telescopic motor 76, the rotation bracket 73 swings at different angles along with the up-and-down movement of the connecting rod 122, and the rotation side of the connecting plate 74 controls different rotation angles along with a second telescopic motor 77 so as to realize the change of different roll bending parameters.
The movable roller group 71 comprises three clamping rollers; the three clamping rollers are respectively arranged in a triangle shape, a triangle vacancy capable of allowing the beam column to pass through is transversely formed by surrounding, and two ends of each clamping roller are connected in the installation through hole through the wheel shaft.
The three clamping rollers of the movable roller group 71 are respectively clamped on the transverse sides of the beam column, bending parameters of the arc-shaped section and the arc-shaped connecting section 83 are prevented from being changed due to pressure in the roll bending process, the beam column is positioned through the cambered surface of the fixed roller, and physical damage to roll bending of the beam column is reduced.
The automatic feeding machine further comprises an uncoiler and a leveling machine located at the discharge end of the uncoiler, wherein a feeding roller is arranged at the feed end of the leveling machine, a discharge roller is arranged at the discharge end of the leveling machine, and a transmission roller is arranged between the discharge end of the leveling machine and the feeding end of the forming roller set 9. The quality after forming is further consistent by uncoiling and flattening the sheet metal.
When the device is used, a metal plate to be processed is placed at one end of the forming roller set 9 and subjected to rough machining through the first rolling section 21, so that two sides of the metal plate are inwards bent along the same side of the metal plate, and an arc-shaped section 84 is formed. And then the second rolling section is processed finely, the end surfaces of the two arc sections 84 are kept in an arc shape and gradually approach to form two symmetrical convex parts 81 and a horizontal section 82 between the two convex parts 81, one ends of the two arc sections 84 are contacted, and arc connecting sections 83 are formed between the two convex parts 81 and the horizontal section 82 by rolling, so that the triangular continuous beam 8 is formed. After the formed continuous beam 8 enters the welding device 3, the pushing roller 12 stretches into the space between the two positioning rollers 13, the formed continuous beam 8 is fixed between the two positioning rollers 13 and the pushing roller 12, and at the moment, the high-frequency welding machine 10 sequentially welds along the contact end surfaces of the two arc-shaped sections 84 of the continuous beam 8. The welded continuous beam 8 is provided with the rudiment of the connecting column, and is rapidly cooled and air-dried through the water cooling box 4 and the air cooling box 5, so that the bending strength and the shearing resistance of the continuous beam 8 are enhanced, the problems of weld joint cracking or strength reduction caused by cutting and roll bending are prevented, and the quality of a finished product is improved. After the cooled continuous beam 8 is conveyed to a specific position by the pushing roller 12, the laser cutting machine 61 directly cuts along one side of the two arc sections 84, and the cutting surface is from small to large, so that uneven cutting of the two convex parts is prevented, and burrs are generated. After passing through the movable roller set 71, the beam column passes through the movable roller set 71 and moves relative to the fixed roller set 72 in the vertical and horizontal directions, as shown in fig. 8, and the beam column extends out of the outlet of the roller bending device 7 along the extending direction to form different roller bending radians.
Finally, it is pointed out that the above embodiments are only intended to illustrate the technical solution of the invention, not to limit it, and that modifications and equivalents can be made thereto without departing from the spirit and scope of the technical solution of the invention, which shall be covered by the scope of the claims.
Claims (9)
1. A continuous forming apparatus for forming a connecting column on an automobile, characterized by: the forming roller set is used for gradually forming two symmetrical convex parts on two edges of the metal plate longitudinally along the same side of the metal plate, one end of each convex part is bent towards the same side to form an arc section, the end faces of the two arc sections are contacted, the middle part of the metal plate forms a horizontal section, and the two convex parts form arc connecting sections between the two convex parts and the horizontal section by the forming roller set in the forming process to form a continuous beam which is approximately triangular;
the welding device is arranged at the tail ends of the forming roller groups and is used for welding the end surfaces of the two arc sections, which are contacted together; the welding end of the welding device is connected with the end surfaces of the two arc-shaped sections or the extension lines of the end surfaces of the two arc-shaped sections;
a cooling device installed after the welding device for cooling the welded continuous beam to increase bending strength and shear resistance of the continuous beam;
the cutting device cuts the cooled continuous beam into beams and columns according to the required length of the product;
the roll bending device is used for roll bending the middle part of the beam column;
the forming roller set, the welding device, the cooling device and the cutting device are sequentially connected into a production line;
the forming roller set comprises a first roller section and a second roller section, the second roller section is positioned at the tail end of the first roller section, the first roller section and the second roller section are formed by sequentially arranging a plurality of roller frame sets, the first roller section is used for gradually rolling two edges of a metal sheet to the same side of the metal sheet to form an arc section, and a roller at the tail end of the first roller section forms the arc section into a radius of 7.2 mm; shaping the arc-shaped section by the head end of the second rolling section, keeping the radius R of the arc-shaped section to be 9.45mm, forming the plate surface of the metal plate from the head end to the tail end of the second rolling section, gradually forming two convex sections and a horizontal section on the plate surface of the metal plate, forming arc-shaped connecting sections between the two convex sections on two sides of the horizontal section respectively, connecting the two convex sections with the arc-shaped section respectively, forming the two convex sections, the horizontal section, the arc-shaped connecting sections and the arc-shaped section into triangles by the tail end of the second rolling section, and contacting the arc-shaped sections on two edges relatively;
the first roller section comprises twelve roller frame groups, the twelve roller frame groups are sequentially arranged on the base, the first roller frame group is connected with the power machine and used for conveying the metal sheet, the front second to fourth roller frame groups are used for primary forming of the edge of the metal sheet, the fifth to twelfth roller frames are respectively provided with a forming part for gradually forming the edge of the metal sheet into an arc section, and the fifth and ninth roller frames are connected with the power machine;
the second rolling section comprises ten forming roller frame groups, wherein the ten forming roller frame groups are sequentially arranged on the base, the first forming roller frame group is positioned at the tail part of the first roller section, the second roller section and the first roller section are arranged in a straight line shape, the first forming roller frame group is provided with a second forming part for forming the plate surface of the metal plate into two convex sections, one horizontal section and an arc connecting section, and the second forming roller frame group to the tenth forming roller frame group are respectively provided with a third forming part for forming the two convex sections, one horizontal section, the arc connecting section and the arc sections at the two edges into a triangle; the roller bending device comprises a movable roller set, a fixed roller set, a conveying roller set, a first rotating structure and a second rotating structure which are sequentially arranged along an outlet of the roller bending device; the fixed roller set is used for positioning the continuous beam; the movable roller set is arranged at the outlet of the roller bending device and is opposite to the fixed roller set; the conveying roller set is used for conveying the beam column; the movable roller group swings up and down and left and right through the first rotating structure and the second rotating structure respectively so as to realize the roller bending of the beam column;
the first rotating structure is a rotating bracket which is connected to one side of the outlet of the roll bending device along the triangular circumferential direction of the beam column, and is connected with a driving device for controlling the rotation of the rotating bracket; the second rotating structure is a connecting plate which is longitudinally and rotatably connected to the rotating bracket along the beam column, and the rotation of the connecting plate is controlled by the driving device; the movable roller group is connected in a mounting through hole arranged in the connecting plate; the beam column is transmitted among the movable roller set, the fixed roller set and the transmission roller set through the mounting through holes.
2. The continuous forming apparatus for forming a connecting column on an automobile according to claim 1, wherein: the welding device comprises a high-frequency welding machine, a welding machine slideway and a clamping roller set; the clamping roller set comprises a pushing roller and two positioning rollers; the two positioning rollers are used for supporting the two convex parts; the pushing roller is used for pushing the continuous beam between the two positioning rollers; the welding machine slideway is arranged at one side opposite to the pushing roller; the high-frequency welding machine is arranged on the welding machine slideway in a sliding way along the extending direction of the continuous beam, and the welding gun of the high-frequency welding machine is opposite to the butt joint position of the two arc sections.
3. The continuous forming apparatus for forming a connecting column on an automobile according to claim 2, wherein: the number of the clamping roller sets is two; the positioning rollers on the same side of the two clamping roller groups are respectively and rotatably connected to the same roller positioning frame; the two pushing rollers are connected to the same roller positioning frame and move along the welding gun direction under the action of the telescopic cylinder.
4. The continuous forming apparatus for forming a connecting column on an automobile according to claim 2, wherein: the tail part of the clamping roller set is provided with 2-5 groups of shaping roller sets, each group of shaping roller sets comprises a plate-shaped shaping plate and three shaping wheels, a triangular through hole is formed in the middle of the plate-shaped shaping plate, the three shaping wheels are all arranged on the plate-shaped shaping plate at the inlet of the triangular through hole, the three shaping wheels are arranged in a triangular mode, and the three shaping wheels enclose a triangular vacancy which can enable a triangular continuous beam to pass through.
5. The continuous forming apparatus for forming a connecting column on an automobile according to claim 1, wherein: the cooling device comprises a water cooling box and an air cooling box positioned at the outlet of the water cooling box, the water cooling box is positioned behind the welding device, and the water cooling box comprises a water spray pipe, a cold flow inner cavity and a speed reducing roller set; the speed reduction roller set is used for conveying the continuous beam in the cold flow inner cavity; the spray gun of the spray pipe points to the continuous beam on the speed reducing roller group; a drain pipe lower than the continuous beam is arranged on the cold flow inner cavity; one end of the drain pipe is connected with a drain or water storage device; the air cooling box comprises an air supply mechanism and a plurality of ventilation pipes; the ventilation pipe is arranged along the side wall of the air cooling box and is provided with a plurality of air outlet holes communicated with the air cooling box, and the other end of the ventilation pipe is communicated with the air supply mechanism.
6. The continuous forming apparatus for forming a connecting column on an automobile according to claim 1, wherein: the cutting device comprises a laser cutting machine and a sectional roller set; the sectional roller set is connected with a PLC controller and is used for controlling the sectional conveying of the continuous beam; the cutting gun of the laser cutting machine points to the continuous beam on the sectional roller set and cuts downwards along one side of the arc section of the continuous beam; and the control end of the laser cutting machine is connected with the PLC.
7. Continuous forming device for forming connecting columns on vehicles according to claim 5 or 6, characterized in that: and a straightening device is arranged between the cutting device and the cooling device and used for straightening and shaping the cooled continuous beam, the straightening device comprises a plurality of groups of straightening roller groups, each group of straightening roller groups mainly comprises three straightening rollers and a roller frame, and the three straightening rollers are all arranged on the roller frame through wheel shafts and are in triangular arrangement and correspond to the three edges of the continuous beam.
8. The continuous forming apparatus for forming a connecting column on an automobile according to claim 1, wherein: the movable roller group comprises three clamping rollers; the clamping rollers are respectively arranged in a triangle, three clamping rollers transversely enclose a triangle vacancy which can enable the beam column to pass through, and two ends of the clamping rollers are connected in the mounting through hole through the wheel shaft.
9. The continuous forming device for forming a connecting column on an automobile according to any one of claims 2, 3, 4, or 5, wherein: the automatic leveling machine comprises a forming roller set, a feeding roller, a leveling machine discharging end, a feeding roller, a conveying roller, a leveling machine discharging end and a leveling machine, wherein the leveling machine is positioned at the discharging end of the uncoiling machine, the feeding roller is arranged at the feeding end of the leveling machine, the discharging roller is arranged at the discharging end of the leveling machine, and the conveying roller is arranged between the discharging end of the leveling machine and the feeding end of the forming roller set.
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| CN110181288A (en) * | 2019-07-01 | 2019-08-30 | 河北科技大学 | Conveying roller automatic assembly line |
| CN113937396A (en) * | 2021-08-24 | 2022-01-14 | 无锡市源隆金属制品有限公司 | New energy automobile blade battery tray frame beam and production process thereof |
| CN113857639A (en) * | 2021-10-28 | 2021-12-31 | 凌云西南工业有限公司 | Automobile pipe beam welding process |
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