Carriage plate machining method and machining equipment

Abstract

The invention discloses a carriage plate processing method and processing equipment, the scheme sequentially comprises an uncoiling process, a pre-punching process, a roll forming process, a roll welding process, a correction process and a fixed-length cutting process, according to the uncoiling process, a roll material is unfolded into a flat plate shape and is leveled to form a leveled plate material; a pre-punching process: punching holes in the leveling plate material to form a punched plate material; in the rolling forming process, the punched plate material is subjected to multi-pass rolling to form a rolling plate material; a roll welding process: welding a to-be-welded part of the roll plate material to form a welded plate material; a correction process: correcting the welding plate to form a corrected plate; and a fixed-length cutting-off process, wherein the plate is cut off and corrected in a fixed-length mode to form a compartment plate finished product. The above technological processes do not need to cut and trim the plate, so that waste materials are basically not generated, and the utilization rate of the materials is improved.

Description

Technical Field

[0001] The present application relates to the field of automobile processing technology, and in particular to a car body panel processing method and processing equipment. Background Art

[0002] As competition in the automotive industry becomes increasingly fierce, how to reduce the cost of automobile manufacturing has become a research topic for various automobile companies. At present, the main forming process for automobile body panels is stamping process, see Figure 1 , Figure 1 The box panel processed by stamping process is shown. In order to improve the strength of the box panel 01, the box panel includes multiple ribs 011, flanges 012 and reinforcement columns 013. Usually, the flanges 012 and reinforcement columns 013 are located at the edge of the box panel 01. When stamping the box panel, three machine tools with a capacity of more than 500T are used, and the left and right parts are combined into a mold. Generally, there are three processes, such as Figure 2 As shown, it includes: S01: drawing, S02: trimming and punching, S03: flanging and shaping. Since cutting and trimming are required during the stamping process, a certain amount of waste will be generated, and the material utilization rate is low. In addition, affected by the performance of the stamping equipment and the design of the mold, if the equipment or mold design is not advanced enough, it may lead to low production efficiency.

[0003] Therefore, how to improve material utilization has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] The present application proposes a car body panel processing method and processing equipment to improve material utilization.

[0005] In order to achieve the above objectives, this application discloses the following technical solutions:

[0006] The present application provides a method for processing a car body, comprising:

[0007] Unwinding process, unwinding the coil into a flat sheet and leveling it to form a leveled sheet;

[0008] Pre-punching process, the flat sheet is punched with holes to form a punched sheet;

[0009] Roll forming process, punched sheet is rolled through multiple passes to form rolled sheet;

[0010] Roll welding process, welding the parts to be welded of the rolled sheet to form a welded sheet;

[0011] Correction process, correcting the welding sheet to form a correction sheet;

[0012] Cut-to-length process: Cut and correct the sheet material to form the finished car body.

[0013] In some embodiments, the unwinding process includes unwinding, cleaning and leveling, wherein:

[0014] Unwinding, unfolding the coil into a flat plate;

[0015] Leveling: The unfolded sheet metal is leveled to obtain a leveled sheet metal to eliminate stress and warping during the manufacturing and transportation process.

[0016] In some embodiments, the unwinding process further includes a first material storage between unwinding and leveling to store the unwound sheet material;

[0017] And the second material storage after leveling is used to store the leveled material.

[0018] In some embodiments, the pre-punching process includes punching, and punching the calibrated sheet material to form a punched sheet material.

[0019] In some embodiments, the pre-punching process further includes a third material storage to store the punched sheet material.

[0020] In some embodiments, the roll forming process includes roll ribs, roll flanging and roll shaping, wherein:

[0021] Rolling ribs, performing preliminary rolling on the leveling plate material to roll out a rolled plate material with ribs;

[0022] Rolling and flanging, rolling the rolled sheet with ribs again to roll out a rolled sheet with ribs and flanging;

[0023] Roller shaping is used to shape rolled sheets with ribs and flanges.

[0024] In some embodiments, the number of ribs is five, namely the first rib, the second rib, the third rib, the fourth rib and the sixth rib, the second rib and the third rib are located on the left and right sides of the first rib, the fourth rib is located on the left side of the first rib, the second rib and the third rib, and the sixth rib is located on the right side of the first rib, the second rib and the third rib.

[0025] In some embodiments, rolling the ribs includes a first pass, a second pass, a third pass, a fourth pass, a fifth pass, a sixth pass, a seventh pass, an eighth pass, and a ninth pass, wherein:

[0026] First pass: The flat sheet is fed into the first pass roller for rolling. After rolling, the sheet is formed into a first rib with a height of 2.9 mm and a side wall angle of 165 degrees.

[0027] Second pass: The sheet material after the first pass of rolling smoothly enters the second pass of rollers for rolling. After rolling, the height of the first rib becomes 5.6mm, and the side wall angle becomes 150 degrees;

[0028] The third pass: After the second pass of rolling, the sheet smoothly enters the third pass of rollers for rolling. After rolling, the height of the first rib becomes 8mm, and the side wall angle becomes 135 degrees;

[0029] Fourth pass: The sheet material after the third pass rolling smoothly enters the fourth pass roller for rolling. After rolling, the sheet material forms the second and third ribs with a height of 4.2mm and a side wall angle of 158 degrees on both sides of the formed first rib;

[0030] The fifth pass: the sheet material after the fourth pass rolling smoothly enters the fifth pass roller for rolling. After rolling, the second rib on the left side of the first rib has been formed in the middle of the sheet material, the side wall angle on one side becomes 135 degrees, the height becomes 8mm, and the side wall angle on the other side is 172 degrees, and the height is 3.2mm; the third rib on the right side of the rib has been formed in the middle, the side wall angle on one side becomes 135 degrees, the height becomes 8mm, and the side wall angle on the other side becomes 172 degrees, and the height becomes 3mm;

[0031] The sixth pass: the sheet material after the fifth pass rolling smoothly enters the sixth pass roller for rolling. After rolling, the first rib, the second rib and the fourth rib on the left side of the third rib have been formed in the middle of the sheet material, the angle of the left side wall becomes 153 degrees, and the height becomes 10.4mm; the fifth rib on the right side of the first rib, the second rib and the third rib has been formed in the middle, the angle of the right side wall becomes 150 degrees, and the height becomes 10.9mm;

[0032] The seventh pass: the sheet material after the sixth pass of rolling smoothly enters the seventh pass of rollers for rolling. After rolling, the first rib, the second rib and the fourth rib on the left side of the third rib have been formed in the middle of the sheet material, and the angle of the left side wall becomes 134 degrees; the height becomes 16.7mm; the first rib, the second rib and the fifth rib on the left side of the third rib have been formed in the middle, and the angle of the right side wall becomes 127 degrees, and the height becomes 17.8mm;

[0033] The eighth pass: the sheet material after the seventh pass of rolling smoothly enters the eighth pass of rollers for rolling. After rolling, the first rib, the second rib and the fourth rib on the left side of the third rib have been formed in the middle of the sheet material, the angle of the left side wall becomes 115 degrees, and the height becomes 21.4mm; the first rib, the second rib and the fifth rib on the left side of the third rib have been formed in the middle, the angle of the right side wall becomes 105 degrees, and the height becomes 22.2mm;

[0034] The ninth pass: The sheet material that has been rolled in the eighth pass enters the ninth pass roller smoothly for rolling. After rolling, the first rib, the second rib and the fourth rib on the left side of the third rib have been formed in the middle of the sheet material, the angle of the left side wall becomes 100 degrees, and the height becomes 23.8mm; the first rib, the second rib and the fifth rib on the left side of the third rib have been formed in the middle, the angle of the right side wall becomes 90 degrees, and the height becomes 23.8mm.

[0035] In some embodiments, there are three flanges, namely the first flange, the second flange and the third flange, wherein the first flange is located at the leftmost side of the sheet, the sixth rib is located at the rightmost side of the sheet, the second flange is located on the left side of the sixth rib, and the third flange is located on the left side of the second flange.

[0036] In some embodiments, the rolling flanging includes a tenth pass, an eleventh pass, a twelfth pass, a thirteenth pass, a fourteenth pass, a fifteenth pass, a sixteenth pass, a seventeenth pass, an eighteenth pass, a nineteenth pass, a twentieth pass, a twenty-first pass, a twenty-second pass, and a twenty-third pass, wherein:

[0037] The tenth pass: The sheet material after the ninth pass of rolling smoothly enters the tenth pass of rollers for rolling. After rolling, the sheet material has the first flange with a side wall angle of 167 degrees on the far left, and the sixth rib formed on the far right has a side wall angle of 168 degrees and a height of 5.7mm.

[0038] Eleventh pass: The sheet material after the tenth rolling pass smoothly enters the eleventh rolling pass for rolling. After rolling, the leftmost first flange angle of the sheet material becomes 141 degrees, the rightmost sixth rib side wall angle becomes 141 degrees, and the height becomes 17.4mm;

[0039] The twelfth pass: The sheet material after the eleventh pass rolling smoothly enters the twelfth pass roller for rolling. After rolling, the leftmost first flange angle of the sheet material becomes 115 degrees, the rightmost second flange side wall angle becomes 114 degrees, and the height becomes 25.9mm;

[0040] The 13th pass: After the 12th pass, the sheet material smoothly enters the 13th pass roller for rolling. After rolling, the leftmost first flange angle of the sheet material becomes 90 degrees, the rightmost sixth rib side wall angle becomes 92 degrees, and the height becomes 29.4mm;

[0041] Fourteenth pass: The sheet material after the thirteenth pass of rolling smoothly enters the fourteenth pass of rollers for rolling. After rolling, the sheet material has a second flange with an angle of 166 degrees formed on the left side of the sixth rib on the far right;

[0042] Fifteenth pass: The sheet material after the fourteenth pass smoothly enters the fifteenth pass roller for rolling. After rolling, the second flange angle on the left side of the sixth rib on the far right of the sheet material becomes 148 degrees;

[0043] Sixteenth pass: The sheet material after the fifteenth pass of rolling smoothly enters the sixteenth pass of rollers for rolling. After rolling, the second flange angle on the left side of the sixth rib on the far right of the sheet material becomes 130 degrees, and the side wall angle of the sixth rib on the far right becomes 90 degrees;

[0044] Seventeenth pass: The sheet material after the sixteenth pass of rolling smoothly enters the seventeenth pass of rollers for rolling. After rolling, the second flange angle on the left side of the sixth rib on the far right of the sheet material becomes 113 degrees;

[0045] The 18th pass: The sheet material after the 17th pass rolls smoothly into the 18th pass roller for rolling. After rolling, the sheet material forms a third flange with an angle of 168 degrees on the left side of the second flange with an angle of 113 degrees.

[0046] The 19th pass: the sheet material after the 18th pass rolls smoothly into the 19th pass roller for rolling. After rolling, the angle of the third flange on the left side of the second flange of 113 degrees becomes 151 degrees;

[0047] The 20th pass: The sheet material after the 19th pass rolls smoothly into the 20th pass roller for rolling. After rolling, the angle of the third flange on the left side of the second flange of 113 degrees becomes 135 degrees.

[0048] Pass 21: The sheet material after the 20th pass of rolling smoothly enters the 21st pass of rollers for rolling. After rolling, the second flange angle of the sheet material from 113 degrees becomes 105 degrees, and the third flange angle on its left side becomes 118 degrees;

[0049] Pass 22: The sheet material after the 21st pass of rolling smoothly enters the 22nd pass of rollers for rolling. After rolling, the second flange angle of the sheet material from 105 degrees becomes 97 degrees, and the third flange angle on its left side becomes 102 degrees.

[0050] The 23rd pass: The sheet material after the 22nd rolling pass smoothly enters the 23rd rolling pass for rolling. After rolling, the second flanging angle of 97 degrees becomes 90 degrees, and the third flanging angle on its left side becomes 90 degrees.

[0051] In some embodiments, the roller shaping includes a twenty-fourth pass and a twenty-fifth pass, wherein:

[0052] Pass 24: The sheet material after the 23rd pass of rolling smoothly enters the 24th pass of rollers for the first rolling shaping;

[0053] The 25th pass: The sheet material after the 24th rolling pass smoothly enters the 25th roller for the second rolling and shaping.

[0054] In a second aspect, the present application provides a car body panel processing device, using any of the above processing methods, the car body panel processing device comprising:

[0055] An unwinding device is used to unwind the coil into a flat plate and level it to form a leveled flat plate;

[0056] Punching device, punching holes in the flat sheet to form a punched sheet;

[0057] Rolling device, the punched sheet material is rolled through multiple passes to form a rolled sheet material;

[0058] A rolling welding device is used to weld the to-be-welded portion of the rolled sheet material to form a welded sheet material;

[0059] A correction device, for correcting the welding sheet to form a correction sheet;

[0060] The cut-to-length device is used to cut and correct the sheet materials to form finished car body panels.

[0061] It can be seen from the above technical scheme that the compartment plate processing method of the present application includes an uncoiling process, a pre-punching process, a roll forming process, a roll welding process, a correction process and a fixed-length cutting process in sequence. Each of the above process steps does not require cutting and trimming of the sheet material, so basically no waste is generated, thereby improving the utilization rate of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without creative work, and the present application can also be applied to other similar scenarios based on the provided drawings. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0063] Figure 1 A schematic diagram of a compartment plate provided by the prior art;

[0064] Figure 2 A schematic diagram of the processing flow of a compartment plate provided by the prior art;

[0065] Figure 3 A schematic diagram of a process flow of a car body panel processing method provided in an embodiment of the present application;

[0066] Figure 4A schematic diagram of an unwinding process provided in an embodiment of the present application;

[0067] Figure 5 A schematic diagram of another unwinding process provided in an embodiment of the present application;

[0068] Figure 6 A schematic diagram of a pre-punching process provided in an embodiment of the present application;

[0069] Figure 7 A schematic diagram of the structure of a sheet material during the first to ninth passes of the rib rolling process provided in an embodiment of the present application;

[0070] Figure 8 A schematic diagram of the structure of a sheet material during the roller flanging process provided in an embodiment of the present application, after the tenth to twenty-third passes;

[0071] Fig. 9 A schematic diagram of the structure of a sheet material after the twenty-fourth pass to the twenty-fifth pass in the rolling shaping process provided in an embodiment of the present application;

[0072] Fig.10 A three-dimensional diagram of a compartment plate provided in an embodiment of the present application;

[0073] Fig.11 A schematic diagram of a compartment plate provided in an embodiment of the present application;

[0074] Fig.12 A schematic diagram of a car body panel processing device provided in an embodiment of the present application;

[0075] Figures 13 to 21 A schematic diagram of the structure of a rolling device provided in an embodiment of the present application when processing a sheet material;

[0076] In the figure: 01-carriage plate; 011-rib; 012-flange; 013-reinforcement column;

[0077] 1-carriage plate; 11-rib; 12-flange; 13-reinforcement column; 111-first rib; 112-second rib; 113-third rib; 114-fourth rib; 115-fifth rib; 116-sixth rib; 121-first flange; 122-second flange; 123-third flange;

[0078] 10- unwinding device; 20- punching device; 30- rolling device; 40- rolling welding device; 50- correction device; 60- cutting device. DETAILED DESCRIPTION

[0079] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It will be understood that the specific embodiments described herein are only used to explain the related application, rather than to limit the application. The described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0080] See also Figure 3 In order to achieve the above objectives, this application discloses the following technical solutions:

[0081] A method for processing a car body plate, comprising, in sequence, an uncoiling process, a pre-punching process, a roll forming process, a roll welding process, a correction process and a cut-to-length process, wherein:

[0082] Step S1: unwinding process, unwinding the coil into a flat plate and leveling it to form a leveled flat plate.

[0083] Step S2: Pre-punching process, the flat sheet is punched with holes to form a punched sheet.

[0084] Step S3: Roll forming process, the punched sheet material is rolled through multiple passes to form a rolled sheet material.

[0085] Step S4: a rolling welding process, welding the to-be-welded parts of the rolled sheet to form a welded sheet.

[0086] Step S5: Correction process, correcting the welding sheet to form a corrected sheet.

[0087] Step S6: Cutting to length process, cutting and correcting the sheet material to length to form the finished car body.

[0088] The car body plate processing method of the present application does not require cutting and trimming of the plate material in the above-mentioned process, so basically no waste material is generated, thereby improving the utilization rate of the material.

[0089] The above-mentioned unwinding of the rolled metal sheet through the unwinding machine makes it into a flat plate. Specifically, the unwinding process includes unwinding, cleaning and leveling, wherein:

[0090] Step S11: unwinding the coil to unfold it into a flat plate;

[0091] Step S12: Leveling: Leveling the unfolded sheet to obtain a leveled sheet, so as to eliminate stress and warping of the sheet during manufacturing and transportation.

[0092] Since the operation time of the unwinding process is shorter than the leveling time, in order to improve the utilization rate of the equipment, in some examples of the present application, the unwinding process may add a step S11' between step S11 and step S12: storing the unwound sheet;

[0093] Step S12' is added after step S12: the second material storage is performed to store the leveled sheet. Due to the different feeding speeds between the unwinding and leveling processes, the first material storage is set so that the sheet forms an arc during the storage to prevent the sheet from being stretched.

[0094] The pre-punching process includes step S21: punching, punching the leveled sheet to form a punched sheet. Similarly, since the punching speed is shorter than the roller pressing process, in order to improve the equipment utilization rate, the pre-punching process also includes step S22: third storage, storing the punched sheet. The feeding speed of the punching process is different from that of the roller pressing process, and the sheet needs to be stored in an arc to prevent the sheet from being stretched.

[0095] The core point of the present application lies in the roll forming process, which can be classified according to the different rolled structures. Under the premise that the compartment plate includes ribs and flanges, the roll forming process includes rolling ribs, rolling flanging and rolling shaping, wherein: rolling ribs, preliminary rolling of the leveling plate to roll out a rolled sheet with ribs; rolling flanging, rolling the rolled sheet with ribs again to roll out a rolled sheet with ribs and flanges; rolling shaping, shaping the rolled sheet with ribs and flanges.

[0096] In order to facilitate understanding of the specific process of the roll forming process of the present application, the following is a detailed introduction in conjunction with the accompanying drawings:

[0097] See also Figure 7 , Fig.10 and Fig.11 The number of processed ribs 11 is five, namely the first rib 111, the second rib 112, the third rib 113, the fourth rib 114 and the fifth rib 115. The second rib 112 and the third rib 113 are located on the left and right sides of the first rib 111, the fourth rib 114 is located on the left side of the first rib 111, the second rib 112 and the third rib 113, and the fifth rib 115 is located on the right side of the first rib 111, the second rib 112 and the third rib 113.

[0098] Specifically, the rolling of the ribs 11 includes a first pass, a second pass, a third pass, a fourth pass, a fifth pass, a sixth pass, a seventh pass, an eighth pass and a ninth pass, wherein:

[0099] First pass: The leveled plate is fed into the first pass roller for rolling. After rolling, the plate is formed into a first rib 111 with a height of 2.9 mm and a side wall angle of 165 degrees.

[0100] Second pass: The sheet material after the first rolling pass smoothly enters the second rolling pass roller for rolling. After rolling, the height of the first rib 111 becomes 5.6 mm, and the side wall angle becomes 150 degrees.

[0101] The third pass: the sheet material after the second rolling pass smoothly enters the third rolling pass for rolling. After rolling, the height of the first rib 111 becomes 8 mm, and the side wall angle becomes 135 degrees.

[0102] Fourth pass: The sheet material after the third rolling pass smoothly enters the fourth rolling pass for rolling. After rolling, the sheet material has second ribs 112 and third ribs 113 with a height of 4.2 mm and a side wall angle of 158 degrees formed on both sides of the formed first rib 111.

[0103] The fifth pass: the sheet material that has been rolled in the fourth pass smoothly enters the fifth pass roller for rolling. After rolling, the second rib 112 on the left side of the first rib 111 has been formed in the middle of the sheet material, and the angle of the side wall on one side becomes 135 degrees, the height becomes 8mm, and the angle of the side wall on the other side is 172 degrees, and the height is 3.2mm; the third rib 113 on the right side of the rib 11 has been formed in the middle, and the angle of the side wall on one side becomes 135 degrees, the height becomes 8mm, and the angle of the side wall on the other side is 172 degrees, and the height becomes 3mm.

[0104] The sixth pass: The sheet material that has been rolled in the fifth pass smoothly enters the sixth pass roller for rolling. After rolling, the first rib 111, the second rib 112 and the fourth rib 114 on the left side of the third rib 113 have been formed in the middle of the sheet material, and the angle of the left side wall becomes 153 degrees, and the height becomes 10.4 mm; the fifth rib 115 on the right side of the first rib 111, the second rib 112 and the third rib 113 has been formed in the middle, and the angle of the right side wall becomes 150 degrees, and the height becomes 10.9 mm.

[0105] The seventh pass: The sheet material that has been rolled in the sixth pass smoothly enters the seventh pass roller for rolling. After rolling, the first rib 111, the second rib 112 and the fourth rib 114 on the left side of the third rib 113 have been formed in the middle of the sheet material, and the angle of the left side wall becomes 134 degrees; the height becomes 16.7mm; the first rib 111, the second rib 112 and the fifth rib 115 on the left side of the third rib 113 have been formed in the middle, and the angle of the right side wall becomes 127 degrees, and the height becomes 17.8mm.

[0106] The eighth pass: The sheet material that has been rolled in the seventh pass smoothly enters the eighth pass roller for rolling. After rolling, the first rib 111, the second rib 112 and the fourth rib 114 on the left side of the third rib 113 have been formed in the middle of the sheet material, and the angle of the left side wall becomes 115 degrees, and the height becomes 21.4 mm; the first rib 111, the second rib 112 and the fifth rib 115 on the left side of the third rib 113 have been formed in the middle, and the angle of the right side wall becomes 105 degrees, and the height becomes 22.2 mm.

[0107] The ninth pass: The sheet material that has been rolled in the eighth pass smoothly enters the ninth pass roller for rolling. After rolling, the first rib 111, the second rib 112 and the fourth rib 114 on the left side of the third rib 113 have been formed in the middle of the sheet material, and the angle of the left side wall becomes 100 degrees, and the height becomes 23.8 mm; the first rib 111, the second rib 112 and the fifth rib 115 on the left side of the third rib 113 have been formed in the middle, and the angle of the right side wall becomes 90 degrees, and the height becomes 23.8 mm.

[0108] See also Figure 8 , Fig.10 and Fig.11 There are three flanges 12, namely the first flange 121, the sixth rib 116, the second flange 122 and the third flange 123, wherein the first flange 121 is located at the leftmost side of the sheet, the sixth rib 116 is located at the rightmost side of the sheet, the second flange 122 is located on the left side of the sixth rib 116, and the third flange 123 is located on the left side of the second flange 122.

[0109] The rolling flanging 12 includes the tenth pass, the eleventh pass, the twelfth pass, the thirteenth pass, the fourteenth pass, the fifteenth pass, the sixteenth pass, the seventeenth pass, the eighteenth pass, the nineteenth pass, the twentieth pass, the twenty-first pass, the twenty-second pass, and the twenty-third pass, wherein:

[0110] The tenth pass: The sheet material after the ninth rolling pass smoothly enters the tenth rolling pass for rolling. After rolling, the sheet material has a first flange 121 with a side wall angle of 167 degrees on the far left, and the sixth rib 116 formed on the far right has a side wall angle of 168 degrees and a height of 5.7 mm.

[0111] Eleventh pass: The sheet material after the tenth rolling pass smoothly enters the eleventh rolling pass for rolling. After rolling, the angle of the first flange 121 on the far left becomes 141 degrees, the side wall angle of the sixth rib 116 on the far right becomes 141 degrees, and the height becomes 17.4 mm.

[0112] The twelfth pass: The sheet material that has been rolled in the eleventh pass smoothly enters the twelfth pass roller for rolling. After rolling, the angle of the first flange 121 on the left side of the sheet material becomes 115 degrees, the angle of the side wall of the second flange 12 on the right side becomes 114 degrees, and the height becomes 25.9 mm.

[0113] The thirteenth pass: The sheet material after the twelfth rolling pass smoothly enters the thirteenth rolling pass for rolling. After rolling, the angle of the first flange 121 on the far left becomes 90 degrees, the side wall angle of the sixth rib 116 on the far right becomes 92 degrees, and the height becomes 29.4 mm.

[0114] Fourteenth pass: The sheet material after the thirteenth rolling pass smoothly enters the fourteenth rolling pass for rolling. After rolling, a second flange 122 with an angle of 166 degrees is formed on the left side of the sixth rib 116 on the far right side of the sheet material.

[0115] Fifteenth pass: The sheet material after the fourteenth rolling pass smoothly enters the fifteenth roller for rolling. After rolling, the angle of the second flange 122 on the left side of the sixth rib 116 on the far right side of the sheet material becomes 148 degrees.

[0116] Sixteenth pass: The sheet material after the fifteenth rolling pass smoothly enters the sixteenth rolling pass for rolling. After rolling, the angle of the second flange 122 on the left side of the sixth rib 116 on the far right becomes 130 degrees, and the angle of the side wall of the sixth rib 116 on the far right becomes 90 degrees.

[0117] Seventeenth pass: The sheet material after the sixteenth rolling pass smoothly enters the seventeenth rolling pass for rolling. After rolling, the angle of the second flange 122 on the left side of the sixth rib 116 on the far right side of the sheet material becomes 113 degrees.

[0118] Eighteenth pass: The sheet material after the seventeenth rolling pass smoothly enters the eighteenth rolling pass for rolling. After rolling, the sheet material is further formed into a third flange 123 with an angle of 168 degrees on the left side of the second flange 122 of 113 degrees.

[0119] Nineteenth pass: The sheet material after the eighteenth rolling pass smoothly enters the nineteenth rolling pass for rolling. After rolling, the angle of the third flange 123 on the left side of the second flange 122 of 113 degrees becomes 151 degrees.

[0120] The twentieth pass: the sheet material after the nineteenth rolling pass smoothly enters the twentieth rolling pass for rolling. After rolling, the angle of the third flange 123 on the left side of the second flange 122 of 113 degrees becomes 135 degrees.

[0121] The 21st pass: The sheet material after the 20th rolling pass smoothly enters the 21st roller for rolling. After rolling, the angle of the second flange 122 of 113 degrees becomes 105 degrees, and the angle of the third flange 123 on its left side becomes 118 degrees.

[0122] The 22nd pass: The sheet material after the 21st rolling pass smoothly enters the 22nd roller for rolling. After rolling, the angle of the second flange 122 of 105 degrees becomes 97 degrees, and the angle of the third flange 123 on its left side becomes 102 degrees.

[0123] The 23rd pass: The sheet material after the 22nd rolling pass smoothly enters the 23rd rolling pass for rolling. After rolling, the angle of the 97-degree second flange 122 of the sheet material becomes 90 degrees, and the angle of the third flange 123 on its left side becomes 90 degrees.

[0124] See also Fig. 9 , Fig.10 and Fig.11 , the roller shaping includes the twenty-fourth and twenty-fifth passes, in which:

[0125] The 24th pass: The sheet material after the 23rd rolling pass smoothly enters the 24th roller for the first rolling shaping.

[0126] The 25th pass: The sheet material after the 24th rolling pass smoothly enters the 25th roller for the second rolling and shaping.

[0127] The structure of the compartment plate 1 is initially formed in the rolled sheet, and in particular, the initial form of the reinforcement plate is formed. In order to improve the connection strength of the reinforcement plate, the present application uses the above-mentioned roll welding process to weld the to-be-welded parts of the rolled sheet to form a welded sheet, thereby obtaining a complete reinforcement column 13. During the welding process, deformation may occur due to the presence of welding stress. Therefore, the welded sheet is corrected to form a corrected sheet through a correction process.

[0128] Since the length requirements of the compartment panel 1 vary among vehicles, the correction sheet can be cut according to specific requirements to form a finished compartment panel 1 .

[0129] The present application also discloses a compartment plate 1 processed by the above method, see Fig.10 and Fig.11 The structure includes a plurality of ribs 11 , flanges 12 and reinforcing columns 13 , wherein the flanges 12 and reinforcing columns 13 are located on both sides of the ribs 11 .

[0130] Among them, the rib 11 includes a first rib 111, a second rib 112, a third rib 113, a fourth rib 114 and a fifth rib 115, the second rib 112 and the third rib 113 are located on the left and right sides of the first rib 111, the fourth rib 114 is located on the left side of the first rib 111, the second rib 112 and the third rib 113, and the fifth rib 115 is located on the right side of the first rib 111, the second rib 112 and the third rib 113.

[0131] The flange 12 includes a first flange 121, a second flange 122 and a third flange 123, wherein the first flange 121 is located at the leftmost side of the sheet material, and the sixth rib 116, the second flange 122, the third flange 123 and the fifth rib 115 form a reinforcing column 13, which is a rectangular structure.

[0132] See also Fig.12 The present application also discloses a car body 1 processing device, which adopts any of the above processing methods, and the car body 1 processing device includes:

[0133] The unwinding device 10 is used to unwind the coil into a flat plate and level it to form a leveled flat plate;

[0134] The punching device 20 is used to punch holes in the leveled sheet material to form a punched sheet material.

[0135] The rolling device 30 is used to roll the punched sheet material through multiple passes to form a rolled sheet material.

[0136] The roll welding device 40 welds the to-be-welded portion of the sheet material by rolling to form a welded sheet material.

[0137] The correction device 50 corrects the welding sheet to form a correction sheet.

[0138] The cut-to-length device 60 is used to cut and calibrate the sheet material to form the finished product of the compartment panel 1.

[0139] Since the above processing method has the above beneficial effects, the processing equipment applying the processing method has corresponding effects, which will not be described in detail here.

[0140] It should be noted in the present application that the rolling device 30 includes a multi-pass roller assembly, which can be divided into a rib roller assembly, a flanging roller assembly and a shaping roller assembly according to the different passes of the roller assembly. Among them, the rib roller assembly is used to process the ribs 11 on the sheet material, the flanging roller assembly is used to process the flanging 12 on the sheet material, and the shaping roller assembly is used to shape the processed ribs 11 and flanging 12 for subsequent welding.

[0141] The rib pressing roller assembly of the present application is adjusted according to the number of the ribs 11 to be rolled. Taking the number of ribs 11 as an example, the rib pressing roller assembly may include a nine-pass pressing roller assembly, and the structure of the die sleeve on the pressing roller in each pass is adjusted according to the rolling requirements. Figures 13 to 15 As shown, Fig.13 Disclosed are schematic diagrams of the structure of the die sleeves in the first pass, the second pass and the third pass; Fig.14 Disclosed are schematic structural diagrams of the die sleeves in the fourth pass, the fifth pass, and the sixth pass; Fig.15 The structural schematic diagrams of the die sleeves in the seventh pass, the eighth pass and the ninth pass are disclosed.

[0142] Similarly, the flanging roller assembly is adjusted according to the number of rolled flangings 12. Taking the number of flangings 12 as an example, the flanging roller assembly may include fourteen passes of roller assemblies, and the structure of the die sleeve on the roller in each pass is adjusted according to the rolling requirements. Figures 16 to 20 As shown, Fig.16 The schematic diagram of the structure of the die sleeve in the tenth to twelfth passes is disclosed; Fig.17 The schematic diagram of the structure of the die sleeve in the thirteenth to fifteenth passes is disclosed; Fig.18 The schematic diagram of the structure of the die sleeve in the sixteenth to eighteenth passes is disclosed; Fig.19 The structural schematic diagram of the die sleeve in the nineteenth to twenty-first passes is disclosed; Fig. 20 The structural schematic diagram of the die sleeve in the 22nd to 23rd passes is disclosed.

[0143] Similarly, the shaping roller assembly adjusts the structure of the die sleeve according to the shaping requirements, such as Fig.21 As shown, Fig.21 The schematic structural diagram of the die sleeve in the twenty-fourth to twenty-fifth passes is disclosed.

[0144] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used, and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. The scope of application involved in the present application is not limited to the technical solution formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned application concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in this application (but not limited to) to form a technical solution.

Claims

1. A method for processing a car body, characterized in that: include: Unwinding process, unwinding the coil into a flat sheet and leveling it to form a leveled sheet; Pre-punching process, the flat sheet is punched with holes to form a punched sheet; Roll forming process, punched sheet is rolled through multiple passes to form rolled sheet; Roll welding process, welding the parts to be welded of the rolled sheet to form a welded sheet; Correction process, correcting the welding sheet to form a correction sheet; Cut-to-length process: Cut and correct the sheet material to form the finished car body.

2. The processing method according to claim 1, characterized in that: The unwinding process includes unwinding and leveling, wherein: Unwinding, unfolding the coil into a flat plate; Leveling: The unfolded sheet metal is leveled to obtain a leveled sheet metal to eliminate stress and warping during the manufacturing and transportation process.

3. The processing method according to claim 2, characterized in that: The unwinding process further includes a first material storage between the unwinding and the leveling to store the unwound sheet material; and a second material storage after the leveling to store the leveled material.

4. The processing method according to claim 1, characterized in that: The pre-punching process includes punching, and punching the leveling plate to form a punched plate.

5. The processing method according to claim 4, characterized in that: The pre-punching process also includes a third material storage to store the punched sheet material.

6. The processing method according to claim 1, characterized in that: The roll forming process includes roll ribs, roll flanging and roll shaping, wherein: Rolling ribs, performing preliminary rolling on the leveling plate material to roll out a rolled plate material with ribs; Rolling and flanging, rolling the rolled sheet with ribs again to roll out a rolled sheet with ribs and flanging; Roller shaping is used to shape rolled sheets with ribs and flanges.

7. The processing method according to claim 6, characterized in that: The number of the ribs is five, namely the first rib, the second rib, the third rib, the fourth rib and the fifth rib. The second rib and the third rib are located on the left and right sides of the first rib, the fourth rib is located on the left side of the first rib, the second rib and the third rib, and the fifth rib is located on the right side of the first rib, the second rib and the third rib.

8. The processing method according to claim 7, characterized in that: The rolling of the ribs includes a first pass, a second pass, a third pass, a fourth pass, a fifth pass, a sixth pass, a seventh pass, an eighth pass and a ninth pass, wherein: First pass: The flat sheet is fed into the first pass roller for rolling. After rolling, the sheet is formed into a first rib with a height of 2.9 mm and a side wall angle of 165 degrees. Second pass: The sheet material after the first pass of rolling smoothly enters the second pass of rollers for rolling. After rolling, the height of the first rib becomes 5.6mm, and the side wall angle becomes 150 degrees; The third pass: After the second pass of rolling, the sheet smoothly enters the third pass of rollers for rolling. After rolling, the height of the first rib becomes 8mm, and the side wall angle becomes 135 degrees; Fourth pass: The sheet material after the third pass rolling smoothly enters the fourth pass roller for rolling. After rolling, the sheet material forms the second and third ribs with a height of 4.2mm and a side wall angle of 158 degrees on both sides of the formed first rib; The fifth pass: the sheet material after the fourth pass rolling smoothly enters the fifth pass roller for rolling. After rolling, the second rib on the left side of the first rib has been formed in the middle of the sheet material, the side wall angle on one side becomes 135 degrees, the height becomes 8mm, and the side wall angle on the other side is 172 degrees, and the height is 3.2mm; the third rib on the right side of the rib has been formed in the middle, the side wall angle on one side becomes 135 degrees, the height becomes 8mm, and the side wall angle on the other side becomes 172 degrees, and the height becomes 3mm; The sixth pass: the sheet material after the fifth pass rolling smoothly enters the sixth pass roller for rolling. After rolling, the first rib, the second rib and the fourth rib on the left side of the third rib have been formed in the middle of the sheet material, the angle of the left side wall becomes 153 degrees, and the height becomes 10.4mm; the fifth rib on the right side of the first rib, the second rib and the third rib has been formed in the middle, the angle of the right side wall becomes 150 degrees, and the height becomes 10.9mm; The seventh pass: the sheet material after the sixth pass of rolling smoothly enters the seventh pass of rollers for rolling. After rolling, the first rib, the second rib and the fourth rib on the left side of the third rib have been formed in the middle of the sheet material, and the angle of the left side wall becomes 134 degrees; the height becomes 16.7mm; the first rib, the second rib and the fifth rib on the left side of the third rib have been formed in the middle, and the angle of the right side wall becomes 127 degrees, and the height becomes 17.8mm; The eighth pass: the sheet material after the seventh pass of rolling smoothly enters the eighth pass of rollers for rolling. After rolling, the first rib, the second rib and the fourth rib on the left side of the third rib have been formed in the middle of the sheet material, the angle of the left side wall becomes 115 degrees, and the height becomes 21.4mm; the first rib, the second rib and the fifth rib on the left side of the third rib have been formed in the middle, the angle of the right side wall becomes 105 degrees, and the height becomes 22.2mm; The ninth pass: The sheet material that has been rolled in the eighth pass enters the ninth pass roller smoothly for rolling. After rolling, the first rib, the second rib and the fourth rib on the left side of the third rib have been formed in the middle of the sheet material, the angle of the left side wall becomes 100 degrees, and the height becomes 23.8mm; the first rib, the second rib and the fifth rib on the left side of the third rib have been formed in the middle, the angle of the right side wall becomes 90 degrees, and the height becomes 23.8mm.

9. The processing method according to claim 8, characterized in that: There are three flanges, namely the first flange, the second flange and the third flange, wherein the first flange is located at the leftmost side of the sheet material, the sixth rib is located at the rightmost side of the sheet material, the second flange is located on the left side of the sixth rib, and the third flange is located on the left side of the second flange.

10. The processing method according to claim 9, characterized in that: The rolling flanging includes the tenth pass, the eleventh pass, the twelfth pass, the thirteenth pass, the fourteenth pass, the fifteenth pass, the sixteenth pass, the seventeenth pass, the eighteenth pass, the nineteenth pass, the twentieth pass, the twenty-first pass, the twenty-second pass, and the twenty-third pass, wherein: The tenth pass: The sheet material after the ninth pass of rolling smoothly enters the tenth pass of rollers for rolling. After rolling, the sheet material has the first flange with a side wall angle of 167 degrees on the far left, and the sixth rib formed on the far right has a side wall angle of 168 degrees and a height of 5.7mm. Eleventh pass: The sheet material after the tenth rolling pass smoothly enters the eleventh rolling pass for rolling. After rolling, the leftmost first flange angle of the sheet material becomes 141 degrees, the rightmost sixth rib side wall angle becomes 141 degrees, and the height becomes 17.4mm; Pass 12: The sheet material after the eleventh pass is smoothly rolled into the twelfth pass roller for rolling. After rolling, the leftmost first flange angle of the sheet material becomes 115 degrees, the rightmost sixth rib flange side wall angle becomes 114 degrees, and the height becomes 25.9mm; The 13th pass: After the 12th pass, the sheet material smoothly enters the 13th pass roller for rolling. After rolling, the leftmost first flange angle of the sheet material becomes 90 degrees, the rightmost sixth rib side wall angle becomes 92 degrees, and the height becomes 29.4mm; Fourteenth pass: The sheet material after the thirteenth pass of rolling smoothly enters the fourteenth pass of rollers for rolling. After rolling, the sheet material has a second flange with an angle of 166 degrees formed on the left side of the sixth rib on the far right; Fifteenth pass: The sheet material after the fourteenth pass smoothly enters the fifteenth pass roller for rolling. After rolling, the second flange angle on the left side of the sixth rib on the far right of the sheet material becomes 148 degrees; Sixteenth pass: The sheet material after the fifteenth pass of rolling smoothly enters the sixteenth pass of rollers for rolling. After rolling, the second flange angle on the left side of the sixth rib on the far right of the sheet material becomes 130 degrees, and the side wall angle of the sixth rib on the far right becomes 90 degrees; Seventeenth pass: The sheet material after the sixteenth pass of rolling smoothly enters the seventeenth pass of rollers for rolling. After rolling, the second flange angle on the left side of the sixth rib on the far right of the sheet material becomes 113 degrees; The 18th pass: The sheet material after the 17th pass rolls smoothly into the 18th pass roller for rolling. After rolling, the sheet material forms a third flange with an angle of 168 degrees on the left side of the second flange with an angle of 113 degrees. The 19th pass: the sheet material after the 18th pass rolls smoothly into the 19th pass roller for rolling. After rolling, the angle of the third flange on the left side of the second flange of 113 degrees becomes 151 degrees; The 20th pass: The sheet material after the 19th pass rolls smoothly into the 20th pass roller for rolling. After rolling, the angle of the third flange on the left side of the second flange of 113 degrees becomes 135 degrees. Pass 21: The sheet material after the 20th pass of rolling smoothly enters the 21st pass of rollers for rolling. After rolling, the second flange angle of the sheet material from 113 degrees becomes 105 degrees, and the third flange angle on its left side becomes 118 degrees; Pass 22: The sheet material after the 21st pass of rolling smoothly enters the 22nd pass of rollers for rolling. After rolling, the second flange angle of the sheet material from 105 degrees becomes 97 degrees, and the third flange angle on its left side becomes 102 degrees. The 23rd pass: The sheet material after the 22nd rolling pass smoothly enters the 23rd rolling pass for rolling. After rolling, the second flanging angle of 97 degrees becomes 90 degrees, and the third flanging angle on its left side becomes 90 degrees.

11. The processing method according to claim 10, characterized in that: The roller shaping includes the twenty-fourth and twenty-fifth passes, wherein: Pass 24: The sheet material after the 23rd pass of rolling smoothly enters the 24th pass of rollers for the first rolling shaping; The 25th pass: The sheet material after the 24th rolling pass smoothly enters the 25th roller for the second rolling and shaping.

12. A car body plate processing equipment, characterized in that: According to any one of claims 1 to 11, the cabin plate processing equipment comprises: An unwinding device, the unwinding device is used to unwind the coil into a flat plate and level it to form a leveled flat plate; Punching device, punching holes in the flat sheet to form a punched sheet; Rolling device, the punched sheet material is rolled through multiple passes to form a rolled sheet material; A rolling welding device is used to weld the to-be-welded parts of the rolled sheet material to form a welded sheet material; A correction device, for correcting the welding sheet to form a correction sheet; The cut-to-length device is used to cut and correct the sheet materials to form finished car body panels.

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