CN209565776U - Continuous forming device for A-pillar on automobile - Google Patents

Abstract

The utility model provides a continuous forming device for an A-pillar on an automobile, which comprises a plurality of forming roller groups, which are used to form two symmetrical convex parts along the same side of the metal plate along the two edges of the metal plate longitudinally. , one end of the two convex parts is bent to the same side to form an arc section and the end faces of the two arc sections are in contact, the middle part of the metal sheet forms a horizontal section, and the two convex parts are formed by several forming roller groups during the forming process. An arc-shaped connection section is formed between the part and the horizontal section to form a generally triangular continuous beam; the welding device is installed at the tail end of several forming roller groups for welding the end faces of the two arc-shaped sections in contact together; the welding end of the welding device is in contact with the end faces of the two arc-shaped segments or the extension lines of the end faces of the two arc-shaped segments. The continuous forming device for the A-pillar on the automobile provided by the utility model is used for efficiently producing the A-pillar of the automobile, the product quality is high, and the strength of the A-pillar is improved.

Description

Continuous forming device for A-pillar on automobile

technical field

The utility model relates to the technical field of transportation tools, in particular to a forming device for an automobile A-pillar.

Background technique

As the skeleton of the car, the A-pillar is used to connect the roof and the front cabin at the left and right front of the car. Between the engine compartment and the cockpit, above the left and right rearview mirrors, it will block part of the turning vision, that is, the blind spot. , the existence of the blind area is determined by the body structure. The size of the blind area of the A-pillar, since the driver's seat is on the left, the blind area of the left A-pillar is much larger than that of the right. In order to ensure the strength, the A-pillar is generally wider, which will form a The blind area on the left is about 6.8 degrees, and the one on the right is about 2.3 degrees. The blind area is large, which will affect the driver's vision and the risk of traffic accidents. Most of the existing auto parts are formed by stamping, such as Chinese patent CN101288889 discloses "a hot stamping forming process and forming die for ultra-high strength steel", Chinese patent CN101486062A discloses a "integrated process and mold for hot forming and trimming of high-strength steel parts", and Chinese patent CN101717850A discloses "A heat treatment splicing process and device before ultra-high-strength steel plate stamping", Chinese patent CN101961744A "forming method and device for tailor-welded blanks" and Chinese patent CN202297712U "high-temperature splicing and quenching forming device for ultra-high-strength steel", the above-mentioned existing Although the auto parts produced by the process mentioned in the technology and the mold structure have high strength, because they are stamped and formed, two and a half pieces can only be stamped out first, and then welded to form the main body of the A-pillar with a rectangular or rectangular cross-section, which cannot meet the small size requirements. In the processing of the A-pillar, the parts have multiple rotations, and the production efficiency is low.

In addition, CN2016104822235 discloses an automobile A-pillar inner panel assembly, the A-pillar inner panel assembly has relatively high support strength, and in the event of an accident, the A-pillar inner panel can well protect the occupants in the cockpit. The main structure is relatively stable and has good resistance to hard impacts, but its cross-section is generally rectangular, and there is also a problem of large visual obstruction in automotive applications. From the perspective of the driver, it is hoped that the smaller the A-pillar, the better, but from the perspective of the body, the A-pillar is the skeleton of the car, and its strength is strong enough to ensure the safety of the driver. Therefore, there is an urgent need for a processing device for processing small-sized A-pillars.

Utility model content

The utility model provides a continuous forming device for an A-pillar on an automobile, which is used for efficiently producing the A-pillar of the automobile, so that the processing quality of the product is consistent, the strength of the A-pillar is improved, and the number of transfers is small.

In order to achieve the above object, the utility model adopts the following technical solutions:

A continuous forming device for an A-pillar on an automobile, including a forming roller set, which is used to gradually form two symmetrical raised parts longitudinally along the same side of the metal sheet at both edges of the metal sheet, and one end of the two raised parts Bending to the same side to form an arc section and the end faces of the two arc sections are in contact, the middle part of the metal sheet forms a horizontal section, and the two convex parts are formed between the two convex parts and the horizontal section by several forming roller sets during the forming process. Arc-shaped connecting segments to form a generally triangular continuous beam;

Welding device, which is installed at the tail end of several forming roller groups, is used to weld together the end faces of the two arc-shaped segments in contact; the welding end of the welding device is connected to the end faces of the two arc-shaped segments or the two arcs The extension line of the end face of the shape segment is connected;

A cooling device, which is installed after the welding device, is used to cool the welded continuous beam, so as to increase the bending strength and shearing force of the continuous beam;

The cutting device cuts the cooled continuous beam to the length required by the product to form a beam column.

Roll bender for roll bending the middle of beams and columns.

Further, the forming roller set, the welding device, the cooling device and the cutting device are sequentially connected to form a production line.

Further, the forming roller set includes a first roller segment and a second roller segment, and the second roller segment is located at the end of the first roller segment, wherein the first roller segment and the second roller segment are composed of A plurality of roller frame groups are arranged in sequence. The first rolling section is used to gradually roll out the arc section from the two edges of the metal sheet to the same side of the metal sheet. The end rollers of the first rolling section press the arc section It is formed into a radius of 7.2mm; the head end of the second rolling section is shaped to the arc section, and the radius R of the arc section is kept at 9.45mm, and the head end to the tail end of the second rolling section are used to shape the arc section. The surface of the metal sheet is formed, and the surface of the metal sheet is gradually formed into two raised sections and a horizontal section. The two sides of the horizontal section form arc-shaped connecting sections with the two raised sections, and the two raised sections They are respectively connected with the arc sections, and the tail end of the second rolling section is used to shape the two raised sections, the horizontal section, the arc connecting section and the arc section into a triangle, and the arc sections at the two edges are in relative contact.

Further, the first roller section includes twelve roller frame groups, and the twelve roller frame groups are sequentially installed on the base, the first roller is connected with the power machine, and is used for conveying the metal sheet, and the former The second to fourth roller frame groups are used to initially form the edge of the metal sheet, the fifth to the twelfth rollers are all provided with a forming part that gradually forms the edge of the metal sheet into an arc segment, and the fifth and ninth The bit rollers are connected with a power machine.

Further, the second rolling section includes ten forming roller frame groups, wherein the ten forming roller frame groups are installed on the base in sequence, and the first forming roller frame group is located at the At the tail, the second roller section and the first roller section are arranged in a "one" shape, and the first forming roller frame set is equipped with two convex sections, one horizontal section and an arc shape for the surface of the metal sheet. The second forming part of the connecting section, the second forming roller frame group to the tenth forming roller frame group are all provided with two convex sections, a horizontal section, an arc connecting section and arc sections on both edges Shaped into a triangular third shaped part.

Further, the welding device includes a high-frequency welder, a welder slide, and a clamping roller set; the clamping roller set includes a push roller and two positioning rollers; the two positioning rollers are used to support the two raised parts The push roller is used to push the continuous beam along the two positioning rollers; the welding machine slideway is arranged on the opposite side of the push roller; , the torch is facing the joint of the two arc segments.

Further, there are two clamping roller sets; the positioning rollers on the same side of the two clamping roller sets are respectively rotatably connected to the same roller positioning frame; the two pushing rollers are connected to the same roller positioning frame up, and move along the direction of the welding torch under the action of the telescopic cylinder.

Further, there are 2-5 sets of shaping roller sets at the end of the clamping roller set, each set of shaping roller sets includes a plate-shaped shaping plate and three shaping wheels, and a triangular through hole is arranged in the middle of the plate-shaped shaping plate , the three shaping wheels are installed on the plate-shaped shaping plate at the entrance of the triangular through hole, the three shaping wheels are arranged in a triangle, and the three shaping wheels enclose a triangular space through which the triangular continuous beam can pass.

Further, the cooling device includes a water-cooled box and an air-cooled box located at the outlet of the water-cooled box. The water-cooled box is located behind the welding device. The water-cooled box includes a water spray pipe, a cold flow inner cavity and a deceleration roller set; the deceleration roller set is used for continuous The beam is conveyed in the cold flow inner chamber; the spray gun of the water spray pipe is directed to the continuous beam on the deceleration roller set; the cold flow inner chamber is provided with a drain pipe lower than the continuous beam; one end of the drain pipe is connected with a drainage or water storage device The air-cooled box includes an air supply mechanism and several ventilation pipes; the ventilation pipe is arranged along the side wall of the air-cooled box and is provided with several air outlets connected with the air-cooled box, and the other end of the ventilation pipe is connected with the air supply mechanism.

Further, the cutting device includes a laser cutting machine and a segmented roller group; the segmented roller group is connected with a PLC controller for controlling the segmental delivery of the continuous beam; the cutting torch of the laser cutting machine points to the segmented roller The continuous beam on the group is cut downward along one side of the arc section of the continuous beam; the control end of the laser cutting machine is connected with the PLC controller.

Further, a straightening device is installed between the cutting device and the cooling device for straightening and shaping the cooled continuous beam. The straightening device includes multiple sets of straightening rollers, and each set of straightening rollers The group is mainly composed of three straightening rollers and a roller frame. The three straightening rollers are all installed on the roller frame through the axle and the three straightening rollers are arranged in a triangle, corresponding to the three sides of the continuous beam.

Further, the roll bending device includes a moving roll set, a fixed roll set, and a conveying roll set arranged in sequence along the exit of the roll bending device, as well as a first rotating structure and a second rotating structure; the fixed roll set is used to adjust the continuous beam Positioning; the moving roller set is set at the exit of the roll bending device and is opposite to the fixed roller set; the transmission roller set is used to transmit beams and columns; and the moving roller set realizes up and down and Swing left and right to achieve roll bending of beams and columns.

Further, the first rotating structure is a rotating bracket connected to the outlet side of the roll bending device along the triangular ring direction of the beam column, and is connected with a driving device to control its rotation; the second rotating structure is rotating along the longitudinal direction of the beam column and connected to the rotating The connecting plate of the bracket is controlled by the driving device to rotate; the moving roller group is connected in the installation through hole provided in the connecting plate; the beam column is connected to the moving roller group, the fixed roller group and the transmission roller group transfer between.

Further, the moving roller set includes three clamping rollers; the clamping rollers are respectively arranged in a triangle, and the three clamping rollers laterally surround a triangular vacancy through which beams and columns can pass, and the two ends It is connected in the installation through hole through the wheel shaft.

Further, it also includes an uncoiler and a leveler located at the discharge end of the uncoiler. The feed end of the leveler is provided with a feeding roller, and the output end of the leveler is provided with a discharge roller. A transmission roller is arranged between the feeding end of the forming roller group.

The continuous forming device for the A-pillar on the automobile provided by the utility model processes the metal sheet into a continuous beam with a substantially triangular cross-section. Compared with hydraulic forming, the processing cost is saved, and the strength of the connecting column is improved, reducing the Barriers to the field of view when driving; because the device integrates forming, welding, cooling, cutting, and roll bending, the number of processing and transfers is reduced, the processing efficiency of the connecting column is accelerated, and the processing quality of the connecting column is improved; through The forming roller set forms the metal sheet step by step with high processing precision; it cools rapidly after welding to prevent the continuous beam from being unstable after high-temperature welding and causing uneven shearing surface or roll bending deformation.

Other advantages, objectives and features of the utility model will partly be embodied through the following description, and partly will be understood by those skilled in the art through the research and practice of the utility model.

Description of drawings

Fig. 1 is the side view of the continuous forming device of the A-pillar on the automobile;

Fig. 2 is the top view of the continuous forming device of the A-pillar on the automobile;

Figure 3 is a schematic diagram of a continuous beam section;

Fig. 4 is the schematic flow chart of the utility model;

Fig. 5 is the schematic diagram of welding device;

Fig. 6 is a schematic diagram of a plate shaped plate;

Fig. 7 is a schematic diagram of a roll bending device;

Fig. 8 is a schematic diagram of the beam and column after roll bending.

Reference signs include: first rolling section 1, first rolling section 2, welding device 3, water cooling box 4, air cooling box 5, cutting device 6, roll bending device 7, continuous beam 8, forming roller group 9, High-frequency welding machine 10, welding machine slideway 11, pushing roller 12, positioning roller 13, shaping roller group 14, plate shaping plate 15, shaping wheel 16, triangular through hole 17, water spray pipe 41, cold flow Inner cavity 42, drainage pipe 43, deceleration roller group 44, air dryer 51, ventilation pipe 52, laser cutting machine 61, segmented roller group 62, moving roller group 71, fixed roller group 72, rotating bracket 73, Connecting plate 74, transmission roller group 75, first telescopic motor 76, second telescopic motor 77, transmission roller group 78, raised part 81, horizontal section 82, arc connecting section 83, arc section 84, connecting rod 122, telescopic cylinder 123, roller spacer 13.

Detailed ways

In order to make the technical means, creative features, purpose and effect of the utility model realized clearer and easier to understand, the utility model will be further elaborated below in conjunction with the accompanying drawings and specific implementation methods:

As shown in Figure 1-2, the continuous forming device of the A-pillar on the automobile includes several forming roller sets 9, which are used to gradually form two symmetrical protrusions along the same side of the metal plate longitudinally along the two edges of the metal plate. Protruding part 81, as shown in Figure 3, the cross-sectional schematic view of continuous beam 8, one end of two protruding parts 81 is bent to the same side to form arcuate section 84 and two arcuate sections 84 end faces contact, and the middle part of sheet metal forms horizontal section 82, During the forming process of the two convex parts 81, several forming roller sets 9 form an arc-shaped connecting section 83 between the two convex parts 81 and the horizontal section 82 to form a substantially triangular continuous beam 8;

Welding device 3, this welding device 3 is installed on the tail end of several forming roller groups 9, is used for welding together the end faces that two arcuate sections 84 contact; The end face of 84 or the extension line of the end face of two arcuate sections 84 joins;

Cooling device, this cooling device is installed behind the welding device 3, for cooling the continuous beam 8 after welding, to increase the bending strength and shearing force of the continuous beam 8;

The cutting device 6 cuts the cooled continuous beam 8 to the length required by the product to form a beam column.

The roll bending device 7 is used for roll bending the middle part of the beam column.

Described forming roller group 9 comprises first roller section and second roller section, and second roller section is positioned at the end of first roller section, and wherein first roller section and second roller section are all made of a plurality of Roller frame groups are arranged in sequence. The first rolling section 21 is used to gradually roll out the arc section 84 from the two edges of the metal sheet to the same side of the metal sheet. The end rollers of the first rolling section 21 will bend the arc Section 84 is formed into a radius of 7.2mm; the head end of the second rolling section is shaped to the arc section 84, and the radius R of the arc section 84 is kept to be 9.45mm, and the first end of the second rolling section is to the tail end Both are used for forming the surface of the metal sheet, gradually forming two raised sections and a horizontal section 82 on the surface of the metal sheet, and forming arc-shaped connecting sections 83 between the two sides of the horizontal section 82 and the two raised sections respectively , and the two raised sections are respectively connected with the arc section 84, and the tail end of the second rolling section is used to shape the two raised sections, the horizontal section 82, the arc connecting section 83 and the arc section 84 into a triangle, And the arc segments 84 of the two edges are in relative contact.

In the forming roller group 9, each roller frame group in the first roller section and the second roller section includes two rollers, and the two rollers are installed on the mounting frame respectively, and the mounting frame is fixed on a base On the seat, the installation frame is composed of two vertical sides and a horizontal side. The two rollers are installed in the middle of the installation frame in a way that the installation shaft is arranged up and down. There is a gap between the two rollers that can allow the metal sheet of 2cm to pass through. When the metal sheet passes through the first roller segment and the second roller During the section, roll forming is carried out by the rollers, and each roller in the first rolling section 21 has the shape that the two edges of the metal sheet can be gradually rolled out of the arc section 84 according to the S2-S12 process in Fig. 4 . Position, the forming position of the roller at the end of the first roller segment can form the arc segment 84 into a radius of 7.2 mm;

The rollers of the roller frame group at the head end of the second roller section have a shaping section and a forming section, through which the arc section 84 with a radius of 7.2mm can be shaped into a radius R of 9.45mm, and the metal is formed by the shaping section simultaneously. The plate is initially formed into two raised sections and a horizontal section 82 (see S13 in Figure 4), and then the roller forming part of the roller frame group from the head end to the tail end of the second roller section is followed by S14 in Figure 4 -S23 process indicates that two raised sections and one horizontal section 82 are gradually rolled, and the arc section 84 at the upper end of the two raised sections is butted to form a triangular continuous beam 8, and then the arc is welded by a high-frequency welding machine 10 At the butt joint of the section 84, during the welding process, the triangular continuous beam 8 will be positioned at the front end or the rear end of the welding process, so that the butt joint of the arc-shaped section 84 is always in a contact state, so that the high frequency welding machine 10 can weld.

The first roller section includes twelve roller frame groups, and the twelve roller frame groups are installed on the base in turn, the first roller is connected with the power machine, and is used to convey the metal sheet, and the second to the first The four-position roller frame group is used for the preliminary forming of the edge of the metal sheet, the fifth to the twelfth rollers are all provided with a forming part that gradually forms the edge of the metal sheet into an arc segment 84, and the fifth and ninth rollers The wheel is connected with a power machine.

The rear end of each roller frame group can be connected with a roller frame group for shaping so as to improve the forming quality, that is, there can be more than twelve roller frame groups in the first roller segment. The fifth and ninth rollers are connected to the power machine to provide conveying power for the corresponding rollers, which facilitates the conveying of the continuous beam 8 after forming.

The second rolling section includes ten forming roller frame groups, wherein the ten forming roller frame groups are installed on the base in sequence, the first forming roller frame group is located at the tail of the first roller segment, and the The second roller section and the first roller section are arranged in a "one" shape, and the first forming roller frame group is equipped with two convex sections, a horizontal section 82 and an arc-shaped connecting section for forming the surface of the metal sheet The second forming portion of 83, the second forming roller frame group to the tenth forming roller frame group are all provided with two raised sections, a horizontal section 82, an arc connecting section 83 and an arc of two edges. Section 84 is shaped as a triangular third shape.

The ten forming roller groups 9 of the second rolling section are respectively rolled up and down by two rollers, and the second forming part provided on the first forming roller frame group rolls up and down the middle part of the metal sheet with the arc section 84 Press, gradually form two raised sections, a horizontal section 82 and an arc-shaped connecting section 83, the third forming part of the second forming roller frame group to the tenth forming roller frame group is connected to the arc-shaped connecting section 83 and The protruding section is gradually bent so that the two protruding parts 81 are close to one side, and the arc sections 84 at both ends are in contact, and gradually formed into a triangle to prevent the arc-shaped connecting section 83 and the protruding section from being excessively bent to form a continuous beam. 8 torn. The third forming part rolls the arc connecting section 83, and the ten forming roll frame groups of the second rolling section can also be provided with the forming part of the first rolling section 21 for maintaining the shaping of the arc section 84 .

As shown in Figure 4, welding device 3 comprises high-frequency welder 10, welder slideway 11, clamping roller group; Clamping roller group comprises pushing roller 12 and two positioning rollers 13; Two positioning rollers Wheel 13 is used to support two raised parts 81; Push roller 12 is used to push continuous beam 8 along between two positioning rollers 13; Described welder slideway 11 is arranged on the opposite side of pushing roller 12; The frequency welding machine 10 slides along the extension direction of the continuous beam 8 and is arranged on the welding machine slideway 11, and its welding torch is directly facing 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 extension direction of the continuous beam 8 to weld the contact end faces of the two arc segments in sequence, so as to prevent uneven welding due to unstable spacing between the two arc segments.

There are two clamping roller groups; the positioning rollers 13 on the same side of the two clamping roller groups are respectively rotatably connected to the same roller positioning frame 13; 123 moves along the welding torch direction and fixes the continuous beam 8 under the action of 123. The clamping roller group uses three rollers to respectively fix the two ends of the continuous beam 8, further strengthening the stability of the continuous beam 8, making the two arc sections more stable, thereby improving the welding strength.

2-5 groups of shaping roller groups 14 are arranged at the end of the clamping roller group, and each group of shaping roller groups 14 includes a plate-shaped shaping plate 15 and three shaping wheels 16, as shown in Figure 5, the plate-shaped shaping plate 15 Schematic diagram, a triangular through-hole 17 is arranged in the middle of the plate-shaped shaping plate 15, and three shaping wheels 16 are installed on the plate-shaped shaping plate 15 at the entrance of the triangular through-hole 17, and the three shaping wheels 16 are arranged in a triangular transverse direction, and The three shaping wheels 16 enclose a triangular space through which the triangular continuous beam 8 can pass.

The triangular through hole 17 on the shaping plate is provided with grooves arranged along the three sides of the triangular through hole 17, and the axles of the three shaping wheels 16 are respectively transversely connected in the grooves of the shaping plate. The triangular vacancy of the through hole 17, the continuous beam 8 enters the triangular vacancy after being welded, and the three shaping wheels 16 of the multi-group shaping roller group 14 are respectively provided with a corresponding forming part, a second forming part, and a third forming part. Adjust the two protrusions, the arc section, the arc connection section 83 and the horizontal section 82 on the outer wall of the continuous beam 8 by rolling, and set the distance between the shaping wheels 16 to further strengthen the welding of the two arc sections.

Cooling device comprises water-cooled box 4 and the air-cooled box 5 that is positioned at water-cooled box 4 outlets, and water-cooled box 4 is positioned after welding device 3, and water-cooled box 4 comprises water spray pipe 41, cold flow inner cavity 42 and deceleration roller group 44; The roller set 44 is used for the transmission of the continuous beam 8 in the cold flow inner cavity 42; the spray gun of the water spray pipe 41 points to the continuous beam 8 on the deceleration roller set 44; drainpipe 43; drainpipe 43 one end is connected with drainage or water storage device; air-cooled box 5 comprises air supply mechanism and several ventilation pipes 52; A number of air outlets communicated, and the other end of the ventilation pipe 52 is communicated with the air supply mechanism.

The welded continuous beam 8 is cooled and shaped by the shaping wheel 16 to prevent the arc deformation of the continuous beam 8 caused by high temperature welding. Carry out multiple water spray cooling with the integral continuous beam 8, drain pipe 43 discharges the water after heating, after cooling the cold water for the continuous beam 8 rapidly, send the continuous beam 8 to the low temperature environment of the air cooling box 5, and at the same time, 51 pairs of air dryers The surface of the continuous beam 8 is dried to improve the overall performance of the continuous beam 8 and prevent severe deformation during shearing and roll bending.

There are a plurality of ventilation pipes 52 and they are respectively arranged on the top inner wall and the bottom inner wall of the air cooling box 5 , and the air supply mechanism is two air dryers 51 communicating with the ventilation pipes 52 on the top and bottom of the air cooling box 5 respectively. Preferably, the ventilation pipes 52 on the upper/lower floors of the air-cooled box 5 are parallel to each other and communicate with each other, and the ventilation pipes 52 on the upper and lower floors of the air-cooled box 5 are combined into a grid. The upper and lower distribution of the ventilation pipe 52 is conducive to cooling the internal environment of the air-cooled box 5, and forms an isolation to prevent the interference of the external air temperature, so as to achieve a better cooling and drying effect.

The cutting device 6 comprises a laser cutter 61 and a segmented roller group 62; the segmented roller group 62 is connected with a PLC controller for controlling the segmental delivery of the continuous beam 8; the cutting torch of the laser cutter 61 points to the segmented The continuous beam 8 on the section roller group 62 is cut downward along one side of the arc section 84 of the continuous beam 8; the control end of the laser cutting machine 61 is connected with the PLC controller.

The PLC controller executes logic operations, sequential control, timing, counting and arithmetic operations and other user-oriented instructions by inputting programming codes, and controls various types of machinery or production processes through digital or analog input/output. The segmented roller group 62 is connected with a power machine, and its power machine controls the segmented roller group 62 to stop moving within a certain period of time through the PLC controller. 84 cuts downwards at one end, so that both sides of the raised portion are cut evenly. After cutting, the power machine starts, and the segmented roller group 62 transports the beam column that is cut and processed to the next roll bending device 7 . The PLC controller judges the working signal of the laser cutting machine 61 and sends out the driving signal of the segmented roller group 62 to control the segmented roller group 62 to automatically execute the next transmission and cutting action after the continuous beam 8 is cut.

As shown in Figure 6, the roll bending device 7 includes a moving roller group 71, a fixed roller group 72 and a transmission roller group 7875 arranged in sequence along the exit of the roll bending device 7, as well as a first rotating structure and a second rotating structure; The roller group 72 is used for positioning the continuous beam 8; the moving roller group 71 is arranged at the exit of the roll bending device 7 and is opposite to the fixed roller group 72; the transmission roller group 7875 is used to transmit the beam; and the moving roller group 71 realizes swinging up and down and left and right through the first rotating structure and the second rotating structure respectively, so as to realize the roll bending of beams and columns.

The fixed roller set 72 and the transmission roller set 7875 are respectively installed on the same horizontal line through the roller frame and the movable roller set 71, so that the beam column is transmitted to the direction of the fixed roller set 72 along with the transmission roller set 7875 driven by the power machine. The moving roller set 71 is connected to the first rotating structure, and the left and right sides of the first rotating structure are rotationally connected to the second rotating structure, and the upper/lower ends of the second rotating structure are rotationally connected to the exit of the roll bending device 7. When the first rotating structure When the relative roll bending device 7 rotates, and the second rotation structure remains unchanged, one end of the beam column is fixed by the fixed roller set 72, and the other end swings up and down with the moving roller set 71, and moves along the transmission direction with the transmission roller set 7875. Bending to one swinging side in sequence; when the second rotating structure rotates, and the first rotating structure remains unchanged, the beam column follower roller set 71 swings left and right at the same time, and rolls and stretches to the swinging side in a certain arc in turn. Out of the roll bending device 7 exit; when the first rotating structure and the second rotating structure rotate simultaneously, the roll bending of the beam column towards the upper left, lower left, upper right, and lower right can be realized, and in the first rotating structure and/or When the second rotating structure swings to a certain angle and is fixed, the beam column can be bent vertically or form an arc shape with a specified radius along with the conveying direction.

The first rotation structure is a rotation bracket 73 connected to the outlet side of the roll bending device 7 along the beam-column triangular ring direction, and is connected with a driving device to control its rotation; the second rotation structure is connected to the rotation bracket along the longitudinal rotation of the beam column. The connecting plate 74 of 73 is controlled by the driving device to rotate; the moving roller group 71 is connected in the installation through hole provided in the connecting plate 74; And transfer between the transfer roller set 7875. The swing of the rotating bracket 73 is completed by the telescopic motor connected to its side, and the free end of the rotating bracket 73 swings as the first telescopic motor 76 drives up and down. The rotation of the connecting plate 74 is realized by the action of the second telescopic motor 77 connected to the control end of the connecting plate 74 .

The free end of the rotating bracket 73 rotates one side and connects a connecting rod 122 driven by the first telescopic motor 76. The rotating bracket 73 swings at different angles as the connecting rod 122 moves up and down. The motor 77 controls different rotation angles to realize the variation of different roll bending parameters.

The moving roller set 71 includes three clamping rollers; the three clamping rollers are respectively arranged in a triangle, laterally enclosing a triangular space through which beams and columns can pass, and the two ends of the clamping rollers are connected to each other by axles. installed through-hole.

The lateral sides of the three clamping rollers of the moving roller set 71 are respectively clamped correspondingly to the three sides of the beam column, so as to prevent the bending parameters of the arc section and the arc connecting section 83 from being changed due to pressure during the roll bending process, and The beam and column are positioned by the arc surface of the fixed roller to reduce the physical damage to the roll bending of the beam and column.

It also includes an uncoiler and a leveler located at the discharge end of the uncoiler. The feed end of the leveler is provided with a feed roller, and the discharge end of the leveler is provided with a discharge roller. The discharge end of the leveler is connected to the forming roller. A transfer roller is arranged between the feeding ends of the wheel set 9 . By decoiling and smoothing the sheet metal, the quality after forming is further consistent.

When the device is in use, the metal sheet to be processed is put into one end of the forming roller group 9, and is roughly machined through the first rolling section 21, so that both sides of the metal sheet are bent inward along the same side of the metal sheet to form an arc section 84 . Then enter the second rolling section for fine processing, the end faces of the two arc sections 84 keep the arc shape and gradually approach to form two symmetrical raised parts 81 and the horizontal section 82 between the two raised parts 81, and the two arc sections 84 One end is in contact, and an arc-shaped connecting section 83 is rolled between the two convex parts 81 and the horizontal section 82 to form a triangular continuous beam 8 . After the formed continuous beam 8 enters the welding device 3, the push roller 12 is stretched between the two positioning rollers 13, and the formed continuous beam 8 is fixed between the two positioning rollers 13 and the pushing roller 12, At this time, the high-frequency welding machine 10 welds sequentially along the contact end faces of the two arc-shaped segments 84 of the continuous beam 8 . The welded continuous beam 8 has the prototype of the connecting column, and is rapidly cooled and air-dried by the water-cooled box 4 and the air-cooled box 5, which enhances the bending strength and shear resistance of the continuous beam 8, and prevents the welding seam from cracking caused by cutting and rolling Or the problem of reduced strength improves the quality of the finished product. After the cooled continuous beam 8 is transported to a specific position by the push roller 12, the laser cutting machine 61 cuts straight along the sides of the two arc sections 84, and the cutting surface is small to large to prevent uneven cutting of the two protrusions and burrs. After the beam and column pass through the moving roller set 71 by the conveying roller set 7875, the moving roller set 71 moves relative to the fixed roller set 72 in the vertical and horizontal directions. As shown in Figure 8, the beam extends out of the roller along its extension direction The outlet of bending device 7 forms different roll bending radians.

Finally, it is noted that the above embodiments are only used to illustrate the technical solution of the utility model without limitation, and the technical solution of the utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solution of the utility model. It should be included in the scope of the claims of the present utility model.

Claims (15)

1. A continuous forming device for an A-pillar on an automobile, characterized in that: it comprises a forming roller set, which is used to gradually form two symmetrical raised parts longitudinally along the same side of the metal sheet at both edges of the sheet metal, One end of the two convex parts is bent to the same side to form an arc segment and the end faces of the two arc segments are in contact. The middle part of the metal sheet forms a horizontal segment. During the forming process, the two convex parts are formed by several forming roller groups. form an arc-shaped connecting section with the horizontal section to form a generally triangular continuous beam; Welding device, which is installed at the tail end of several forming roller groups, is used to weld together the end faces of the two arc-shaped segments in contact; the welding end of the welding device is connected to the end faces of the two arc-shaped segments or the two arcs The extension line of the end face of the shape segment is connected; A cooling device, which is installed after the welding device, is used to cool the welded continuous beam, so as to increase the bending strength and shearing force of the continuous beam; Cutting device, which cuts the cooled continuous beam to the length required by the product to form a beam column; Roll bender for roll bending the middle of beams and columns. 2. The continuous forming device for the A-pillar on the automobile according to claim 1, characterized in that: the forming roller set, the welding device, the cooling device and the cutting device are sequentially connected to form a production line. 3. The continuous forming device for the A-pillar on the automobile according to claim 1, wherein the forming roller set comprises a first roller segment and a second roller segment, and the second roller segment is located at the first The end of the roller section, wherein the first roller section and the second roller section are arranged sequentially by a plurality of roller frame groups, and the first rolling section is used to gradually move the two edges of the metal sheet to the same side of the metal sheet. The arc section is rolled out, and the end roller of the first rolling section shapes the arc section into a radius of 7.2mm; the first end of the second rolling section shapes the arc section and maintains the radius of the arc section R is 9.45mm, and the first end to the tail end of the second rolling section are used to form the surface of the metal sheet, gradually forming two convex sections and a horizontal section on the surface of the metal sheet, and the two sides of the horizontal section are respectively An arc-shaped connection section is formed between the two raised sections, and the two raised sections are respectively connected to the arc-shaped sections, and the tail end of the second rolling section is used to connect the two raised sections, the horizontal section, and the arc-shaped section The segment and the arc segment are shaped into triangles, and the arc segments at the two edges are in relative contact. 4. The continuous forming device for the A-pillar on the automobile according to claim 3, characterized in that: the first roller section includes twelve roller frame groups, and the twelve roller frame groups are sequentially installed on the base On the seat, the first roller is connected with the power machine for conveying the metal sheet, the front second to fourth roller frame groups are used for the initial forming of the edge of the metal sheet, and the fifth to the twelfth rollers are all equipped with The edge of the metal plate is gradually formed into a forming part of an arc segment, and the fifth and ninth rollers are connected with a power machine. 5. The continuous forming device for the A-pillar on the automobile according to claim 3 or 4, characterized in that: the second rolling section includes ten forming roller frame groups, wherein ten forming roller frame groups Installed on the base in turn, 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 "one" shape, and the first forming roller frame group There is a second forming part that forms two convex sections, a horizontal section and an arc-shaped connecting section on the surface of the metal sheet, and the second forming roller frame set to the tenth forming roller frame set are all equipped with The two convex sections, one horizontal section, the arc-shaped connecting section and the arc-shaped sections of the two edges are formed into a third triangular forming part. 6. The continuous forming device of the A-pillar on the automobile according to claim 1, characterized in that: the welding device includes a high-frequency welder, a welder slideway, and a clamping roller set; the clamping roller set includes a push roller wheel and two positioning rollers; the two positioning rollers are used to support the two raised parts; the push roller is used to push the continuous beam along the two positioning rollers; the welder slideway is set on the push roller On the opposite side; the high-frequency welding machine slides along the extension direction of the continuous beam and is installed on the welding machine slideway, and its welding torch is facing the joint of the two arc sections. 7. The continuous forming device for the A-pillar on the automobile according to claim 6, characterized in that: there are two sets of clamping rollers; On the same roller positioning frame; two push rollers are connected on the same roller positioning frame, and move along the direction of the welding torch under the action of the telescopic cylinder. 8. The continuous forming device for the A-pillar on the automobile according to claim 6, characterized in that: 2-5 sets of shaping roller sets are arranged at the tail of the clamping roll set, and each set of shaping roll sets includes plate-shaped The shaping plate and three shaping wheels are provided with a triangular through hole in the middle of the plate shaping plate, and the three shaping wheels are all installed on the plate shaping plate at the entrance of the triangular through hole. The three shaping wheels are arranged in a triangle, and the three A shaping wheel encloses a triangular vacancy through which a triangular continuous beam can pass. 9. The continuous forming device for the A-pillar on the automobile according to claim 1, characterized in that: the cooling device comprises a water-cooled box and an air-cooled box located at the outlet of the water-cooled box, the water-cooled box is located behind the welding device, and the water-cooled box includes a water spray pipe , cold flow inner cavity and deceleration roller set; the deceleration roller set is used for continuous beam transmission in the cold flow inner cavity; the spray gun of the water spray pipe is directed to the continuous beam on the deceleration roller set; There is a drainage pipe lower than the continuous beam; one end of the drainage pipe is connected with a drainage or water storage device; the air cooling box includes an air supply mechanism and several ventilation pipes; the ventilation pipe is arranged along the side wall of the air cooling box and is connected to the air cooling box Several air outlet holes, and the other end of the ventilation pipe is connected with the air supply mechanism. 10. The continuous forming device of the A-pillar on the automobile according to claim 2, characterized in that: the cutting device comprises a laser cutter and a segmented roller group; the segmented roller group is connected with a PLC controller, It is used to control the segmental conveying of the continuous beam; the cutting gun of the laser cutting machine points to the continuous beam on the segmented roller group, and cuts downward along one side of the arc section of the continuous beam; the control end of the laser cutting machine is connected with the PLC control device connection. 11. The continuous forming device for the A-pillar on the automobile according to claim 9 or 10, characterized in that: a straightening device is installed between the cutting device and the cooling device for straightening the cooled continuous beam And shaping, the straightening device includes multiple sets of straightening rollers, each set of straightening rollers is mainly composed of three straightening rollers and a roller frame, and the three straightening rollers are installed on the roller frame through the axle The upper and three straightening rollers are arranged in a triangle, corresponding to the three sides of the continuous beam. 12. The continuous forming device for the A-pillar on the automobile according to claim 1, characterized in that the roll bending device includes a moving roller set, a fixed roller set and a transmission roller set arranged in sequence along the exit of the roll bending device, And the first rotating structure and the second rotating structure; the fixed roller set is used to position the continuous beam; the moving roller set is set at the exit of the roll bending device and is opposite to the fixed roller set; the transmission roller set is used to transmit the beam column ; and the moving roller set realizes swinging up and down and left and right through the first rotating structure and the second rotating structure respectively, so as to realize the roll bending of beams and columns. 13. The continuous forming device for the A-pillar on the automobile according to claim 12, characterized in that: the first rotating structure is a rotating bracket connected to the exit side of the roll bending device along the triangular circular direction of the beam and column, and is connected with The driving device that controls its rotation; the second rotating structure is a connecting plate connected to the rotating bracket along the longitudinal rotation of the beam column, and its rotation is controlled by the driving device; the moving roller group is connected in the installation through hole provided in the connecting plate; the beam The column is conveyed between the moving roller set, the fixed roller set and the conveying roller set through the installation through holes. 14. The continuous forming device for the A-pillar on the automobile according to claim 13, characterized in that: the moving roller set comprises three clamping rollers; the clamping rollers are respectively arranged in a triangle, and the three Two clamping rollers laterally enclose a triangular vacancy through which beams and columns can pass, and the two ends are connected in the installation through hole through the axle. 15. The continuous forming device for the A-pillar on the automobile according to any one of claims 6, 7, 8, or 9, characterized in that: it also includes an uncoiler and a leveler located at the discharge end of the uncoiler, and the leveler is The feed end of the machine is provided with a feed roller, the discharge end of the screed is provided with a discharge drum, and a transmission drum is provided between the discharge end of the screed and the feed end of the forming roller set.