CN112622317A - Method for manufacturing side wall side beam of vehicle body - Google Patents
Method for manufacturing side wall side beam of vehicle body Download PDFInfo
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- CN112622317A CN112622317A CN202011328643.0A CN202011328643A CN112622317A CN 112622317 A CN112622317 A CN 112622317A CN 202011328643 A CN202011328643 A CN 202011328643A CN 112622317 A CN112622317 A CN 112622317A
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- side wall
- equal
- boundary beam
- manufacturing
- flanging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0003—Producing profiled members, e.g. beams
- B29D99/0007—Producing profiled members, e.g. beams having a variable cross-section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
Abstract
The invention discloses a method for manufacturing a side wall boundary beam of a vehicle body, wherein the side wall boundary beam comprises a side wall boundary beam body, a boundary beam flanging and a mounting bracket, and the manufacturing method comprises the following steps: the side wall side beam body and the side beam flanging are subjected to SMC compression molding; the mounting bracket is formed by injection molding; and (3) bonding and connecting the side wall boundary beam main body, the boundary beam flanging and the mounting bracket. According to the manufacturing method of the body side wall side beam provided by the embodiment of the invention, the body of the side wall side beam can be formed by adopting a high-strength and high-performance SMC composite material, and the obtained body of the side wall side beam is light in weight and has better size control capability. Meanwhile, the compression molding process is simple, the cost is low, the side wall boundary beam can be assembled on an integral supply line, the welding and assembling processes can be reduced compared with those of the traditional automobile, and better appearance molding and appearance processing conditions are provided.
Description
Technical Field
The invention relates to the technical field of automobile part processing, in particular to a manufacturing method of a side wall boundary beam of an automobile body.
Background
In the current hot door motorcycle type, the side wall boundary beam is used and has two kinds of forms: 1. the side wall side beam and the rear side wall (rear fender) are integrally formed by punching and need to be welded with a vehicle body framework; 2. the side wall boundary beam is designed to be injection molded by thermoplastic materials. Because the whole length of side wall boundary beam reaches 3 meters even 4 meters, and the side wall boundary beam is mostly 3D curved surface type molding, and the design appearance requires highly, and the outward appearance is handled also pluralism. The thermoplastic material can not meet the deformation and strength requirements of parts with the length reaching 3 meters, and the side wall boundary beam is a 3D curved surface and can not meet the mold process requirements.
At present, product integration, process, integration and modularization are always the more popular concerns of automobile parts at present, and integration, process, integration and modularization also become more and more concerns in later automobile product design. However, the two manufacturing methods of the side wall boundary beam are inconvenient to assemble, the weight of the side wall boundary beam is heavier, and the cost is higher.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a manufacturing method of a side wall side beam of a vehicle body, so that the side wall side beam can be assembled and lightened easily, and the cost can be effectively reduced.
According to the manufacturing method of the side wall side beam of the vehicle body, the side wall side beam comprises a side wall side beam body, a side beam flanging and a mounting bracket, and the manufacturing method comprises the following steps: the side wall side beam body and the side beam flanging are formed by SMC compression molding; the mounting bracket is formed by injection molding; and bonding and connecting the side wall boundary beam main body, the boundary beam flanging and the mounting bracket.
According to the manufacturing method of the side body side frame of the vehicle body, the side body side frame body and the side frame flanging are subjected to SMC compression molding; injection molding is adopted for the mounting bracket; the side wall side beam main body, the side beam flanging and the mounting bracket are bonded and connected, so that the side wall side beam main body can be formed by adopting high-strength and high-performance SMC composite materials, and the obtained side wall side beam main body is light in weight and has better size control capability. Meanwhile, the compression molding process is simple, the cost is low, the side wall boundary beam can be conveniently assembled on an integral supply line, welding and assembling processes can be reduced compared with those of a traditional automobile, better appearance forming and appearance processing conditions are provided, and the aims of adopting composite materials and realizing light weight in the existing mainstream host factory can be met.
In some embodiments, the molding of the side body and the flanging of the side body by SMC includes: the raw materials are placed in the lower die of the side wall boundary beam body in a segmented mode; controlling the temperature of the lower die of the side wall side beam body to be t1, wherein t1 is more than or equal to 130 ℃ and less than or equal to 150 ℃; controlling the temperature of the upper die of the side wall side beam body to be t2, wherein t2 is more than or equal to 120 ℃ and less than or equal to 140 ℃; controlling the pressure of the press to be f1, wherein f1 is more than or equal to 30 MPa and less than or equal to 90 MPa; the dwell time is controlled to be h1, wherein h1 is more than or equal to 220 seconds and less than or equal to 380 seconds.
In some embodiments, the side body and the side body flange are molded by SMC molding, and the molding of the side body flange by SMC molding includes: placing the raw materials in the lower die of the edge beam flanging; controlling the temperature of the lower flanging die of the boundary beam to be t3, wherein t3 is more than or equal to 68 ℃ and less than or equal to 92 ℃; controlling the temperature of the flanging upper die of the boundary beam to be t4, wherein t4 is more than or equal to 68 ℃ and less than or equal to 92 ℃; controlling the pressure of the press to be f2, wherein f2 is more than or equal to 30 MPa and less than or equal to 90 MPa; the dwell time is controlled to be h2, wherein h2 is more than or equal to 5 seconds and less than or equal to 25 seconds.
In some embodiments, before the step of placing the material section in the side sill body lower die, the method further includes: a glue groove die used for forming a glue groove is reserved on the lower die of the side wall boundary beam body, and the glue groove die comprises a first glue groove die corresponding to the edge turning of the boundary beam and a second glue groove die corresponding to the mounting bracket.
In some embodiments, said adhesively connecting said side sill body, said side sill flange, and said mounting bracket includes: arranging structural adhesive in the adhesive groove of the side wall boundary beam body; and arranging the edge beam flanging and the mounting bracket on the structural adhesive of the corresponding adhesive groove.
In some embodiments, before the step of placing the material section in the side sill body lower die, the method further includes: the side wall boundary beam body lower die is embedded with a fastener.
In some embodiments, after the adhering and connecting the side body side sill main body, the side sill flange and the mounting bracket, the method further includes: and carrying out local polishing, cooling forming and spraying treatment on the assembled side wall boundary beam.
In some embodiments, the mounting bracket is formed using a POM injection molding process.
In some embodiments, the side body and the side flange are molded by SMC, and further include: EPP wind shielding foam is integrated at the front end of the molded side wall boundary beam main body.
In some embodiments, the side body and the side flange are molded by SMC, and further include: and a plurality of reinforcing ribs are formed on the inner side surface of the side wall side beam body along the length direction of the side wall side beam body.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a first flowchart of a method for manufacturing a body side surround beam according to an embodiment of the present invention;
FIG. 2 is a second flowchart of the method for manufacturing a body side surround beam according to the embodiment of the present invention;
FIG. 3 is a third flowchart of the method for manufacturing a body side surround beam according to the embodiment of the present invention;
FIG. 4 is an exploded view of a body side sill according to an embodiment of the present invention;
FIG. 5 is a front view of a side surround sill of an embodiment of the present invention;
FIG. 6 is a sectional view taken along line A-A of FIG. 5;
FIG. 7 is a sectional view taken along line B-B of FIG. 5;
FIG. 8 is a cross-sectional view taken along line C-C of FIG. 5;
FIG. 9 is a cross-sectional view taken along line D-D of FIG. 5;
fig. 10 is a sectional view taken along line E-E of fig. 5.
Reference numerals:
100. a side wall boundary beam;
10. a side wall side beam body; 101. a glue groove; 20. flanging the boundary beam; 30. mounting a bracket; 40. EPP wind shielding foam; 50. a fastener;
200. structural adhesive; 300. a vehicle body.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following describes a method for manufacturing a body side surround beam according to an embodiment of the present invention, with reference to the accompanying drawings.
According to the manufacturing method of the side body side frame of the vehicle body, as shown in fig. 4 and 5, the side body side frame 100 comprises a side body side frame body 10, a side frame flange 20 and a mounting bracket 30, as shown in fig. 1 to 3, the manufacturing method comprises the following steps:
step S1: the side wall side beam body 10 and the side beam flanging 20 are formed by SMC compression molding. Through analyzing the size matching of the side wall boundary beam 100 and the self characteristics of the forming structure, the side wall boundary beam body 10 with strength meeting the requirement and lighter weight can be obtained by adopting SMC material compression molding, thereby reducing the whole weight of the side wall boundary beam 100.
Specifically, in the molding of the side wall side sill body 10 and the side sill flange 20 by SMC, the molding of the side wall side sill body 10 by SMC is performed, as shown in fig. 2, and the method includes the following steps:
step S1012: and placing the raw materials in the lower die of the side wall boundary beam body in a subsection mode. The sheet materials of the side body boundary beam body 10 can be placed on the lower die of the side body boundary beam body in sections, each section of sheet materials are spaced from each other, and in the pressing process of the pressing machine, the sheet materials can be guaranteed to be pressed into the side body boundary beam body 10 which is seamless and consistent in thickness through extension.
Step S1013: and controlling the temperature of the lower die of the side wall side beam body to be t1, wherein t1 is more than or equal to 130 ℃ and less than or equal to 150 ℃. The temperature is controlled within this range to ensure the quality of the finally formed side sill body 10, for example, t1 is any one of 130 degrees, 135 degrees, 140 degrees, 145 degrees and 150 degrees, of course, t1 may be other temperature values, and may be set as required, which is not listed here.
Step S1014: and controlling the temperature of the upper die of the side wall beam body to be t2, wherein t2 is more than or equal to 120 ℃ and less than or equal to 140 ℃. The temperature is controlled within this range to ensure the quality of the finally formed side body 10, for example, t2 is any one of 120 degrees, 125 degrees, 130 degrees, 135 degrees and 140 degrees, of course, t2 may be other temperature values, and may be set as required, which is not listed here.
Step S1015: the pressure of the press is controlled to be f1, wherein f1 is more than or equal to 30 MPa and less than or equal to 90 MPa. The pressure of the press is controlled within this range to ensure the quality of the finally formed side sill body 10, for example, f1 is any one of 30 mpa, 40 mpa, 50 mpa, 60 mpa, 70 mpa, 80 mpa and 90 mpa, of course, f1 may be other pressure values, and may be set according to needs, and is not listed here.
Step S1016: the dwell time is controlled to be h1, wherein h1 is more than or equal to 220 seconds and less than or equal to 380 seconds. The dwell time of the press is controlled within this range to ensure the quality of the finally formed side sill body 10, for example, h1 is any one of 220 seconds, 240 seconds, 260 seconds, 280 seconds, 300 seconds, 320 seconds, 340 seconds, 360 seconds and 380 seconds, of course, h1 can be other time values, and can be set according to needs, and is not listed here.
Specifically, in the molding process of the side body side sill body 10 and the side sill flange 20 by using SMC, the molding process of the side sill flange 20 by using SMC is shown in fig. 3, and the molding process includes the following steps:
step S1021: and placing the raw materials in the lower die of the flanging of the boundary beam.
Step S1022: and controlling the temperature of the lower flanging die of the boundary beam to be t3, wherein t3 is more than or equal to 68 ℃ and less than or equal to 92 ℃. The temperature is controlled within this range to ensure the quality of the finally formed side sill flange 20, for example, t3 is any one of 68 degrees, 70 degrees, 72 degrees, 74 degrees, 76 degrees, 78 degrees, 80 degrees, 82 degrees, 84 degrees, 86 degrees, 88 degrees, 90 degrees and 92 degrees, of course, t3 can be other temperature values, and can be set as required, which is not listed here.
Step S1023: and controlling the temperature of the flanging upper die of the boundary beam to be t4, wherein t4 is more than or equal to 68 ℃ and less than or equal to 92 ℃. Similarly, the temperature is controlled within this range to ensure the quality of the finally formed side sill flange 20, for example, t4 is any one of 68 degrees, 70 degrees, 72 degrees, 74 degrees, 76 degrees, 78 degrees, 80 degrees, 82 degrees, 84 degrees, 86 degrees, 88 degrees, 90 degrees and 92 degrees, of course, t4 may be other temperature values, and may be set as required, which is not listed here.
Step S1024: the pressure of the press is controlled to be f2, wherein f2 is more than or equal to 30 MPa and less than or equal to 90 MPa. The press pressure is controlled within this range to ensure the quality of the final formed edge beam flange 20, for example, f2 is any one of 30 mpa, 40 mpa, 50 mpa, 60 mpa, 70 mpa, 80 mpa, and 90 mpa, although f2 may be other pressure values, and may be set as required, and is not listed here.
Step S1025: the dwell time is controlled to be h2, wherein h2 is more than or equal to 5 seconds and less than or equal to 25 seconds. The dwell time of the press is controlled within this range to ensure the quality of the finally formed side sill flange 20, for example, h2 is any one of 5 seconds, 7 seconds, 9 seconds, 11 seconds, 13 seconds, 15 seconds, 17 seconds, 19 seconds, 21 seconds, 23 seconds and 25 seconds, but h2 may be other time values, and may be set as required, and is not listed here.
In some embodiments, before the step of placing the material section in the side sill body lower die, the method further comprises:
step S1010: a glue groove die used for forming the glue groove 101 is reserved on the lower die of the side wall boundary beam body and comprises a first glue groove die corresponding to the boundary beam flanging 20 and a second glue groove die corresponding to the mounting bracket 30. That is, as shown in fig. 8 to 10, a glue groove 101 is formed at a position of the side sill body 10 for mounting the side sill flange 20 and the mounting bracket 30, the glue groove 101 is formed after molding, the glue groove 101 is a glue sealing process groove, and structural glue is conveniently arranged through the glue groove 101, so as to be used for bonding the side sill flange 20 and the mounting bracket 30.
Step S2: the mounting bracket 30 is injection molded.
In some embodiments, the mounting bracket 30 is formed by a POM injection molding process, and the mounting bracket 30 formed by injection molding of POM material has good performance.
Step S3: the side body edge beam main body 10, the edge beam flanging 20 and the mounting bracket 30 are connected in an adhesive way.
Specifically, the side wall side sill main body 10, the side sill flange 20 and the mounting bracket 30 are bonded and connected, and the method comprises the following steps:
step S301: structural adhesive 200 is arranged in the adhesive groove 101 of the side sill body 10.
Step S302: the edge beam flanges 20 and the mounting brackets 30 are arranged on the structural adhesive 200 of the corresponding adhesive groove 101. That is, the edge beam flange 20 and the mounting bracket 30 are integrated by the special structural adhesive 200, and the assembly is simple and welding is not needed.
According to the manufacturing method of the side body side frame of the vehicle body, the side body side frame body 10 and the side frame flanging 20 are subjected to SMC compression molding; the mounting bracket 30 is formed by injection molding; the side wall side beam main body 10, the side beam flanging 20 and the mounting bracket 30 are bonded and connected, so that the side wall side beam main body 10 can be formed by adopting high-strength and high-performance SMC composite materials, and the obtained side wall side beam main body 10 is light in weight and has better size control capability. Meanwhile, the compression molding process is simple, the cost is low, the side wall boundary beam can be assembled on an integral supply line, welding and assembling processes can be reduced compared with those of a traditional automobile, better appearance forming and appearance processing conditions are provided, and the aims of adopting composite materials and realizing light weight in the existing mainstream host factory can be met.
In some embodiments, before the step of placing the material section in the side sill body lower die, the method further comprises:
step S1011: the fastener 50 is embedded in the lower die of the side wall boundary beam body. For example, the fastener 50 is a nut that may be embedded in the side sill body lower mold. As shown in fig. 7 and 10, it can be understood that, in this way, the fastening member 50 is integrally molded with the side sill body 10, and the side sill 100 and the peripheral member mounting structure not only include the mounting bracket 30, but also can be provided with the fastening member 50 to connect with the vehicle body 300, for example, a nut is embedded in the side sill body 10, and the nut is integrally molded with the peripheral side sill body 10 by being directly embedded in a mold, so as to further enhance the mounting reliability.
In some embodiments, after adhesively attaching the sideframe body 10, the sideframe flanges 20, and the mounting bracket 30, as shown in fig. 1, the method further comprises:
step S4: and (3) carrying out local polishing, cooling forming and spraying treatment on the assembled side wall boundary beam 100, and after a series of treatment, directly packaging and warehousing the treated side wall boundary beam 100.
In some embodiments, the side body sill body 10 and the side sill flange 20 are formed by SMC molding, and further include:
step S103: EPP wind shielding foam 40 is integrated at the front end of the molded side body side sill main body 10. As shown in fig. 6, the EPP wind shielding foam 40 is directly integrated at the front end of the side sill body 10, so that the subsequent separate installation operation can be omitted, the process can be simplified, and the assembly efficiency can be improved, wherein the EPP wind shielding foam 40 is used for stopping against the car body 300.
In some embodiments, the side body sill body 10 and the side sill flange 20 are formed by SMC molding, and further include: a plurality of reinforcing ribs (not shown) are formed on the inner side surface of the side sill body 10 along the length direction of the side sill body 10. Side wall boundary beam body 10 is at the compression molding in-process, through set up the reservation position on the mould, can acquire a plurality of strengthening ribs after the compression molding, and then improves the intensity of side wall boundary beam body 10.
One specific embodiment of the method of manufacturing a body side sill of the present invention is described.
The first embodiment is as follows:
a manufacturing method of a side wall boundary beam of a vehicle body comprises the following steps:
step S1: the side wall side beam body 10 and the side beam flanging 20 are formed by SMC compression molding.
Side wall boundary beam body 10 adopts SMC compression molding, specifically includes:
step S1010: a glue groove die used for forming the glue groove 101 is reserved on the lower die of the side wall boundary beam body and comprises a first glue groove die corresponding to the boundary beam flanging 20 and a second glue groove die corresponding to the mounting bracket 30.
Step S1011: the fastener 50 is embedded in the lower die of the side wall boundary beam body.
Step S1012: and placing the raw materials in the lower die of the side wall boundary beam body in a subsection mode.
Step S1013: and controlling the temperature of the lower die of the side wall beam body to be t1, wherein t1 is 130 degrees.
Step S1014: and controlling the temperature of the upper die of the side wall beam body to be t2, wherein t2 is 120 degrees.
Step S1015: the pressure of the press was controlled at f1, where f1 was 30 mpa.
Step S1016: the dwell time was controlled to be h1, where h1 was 220 seconds.
A plurality of reinforcing ribs are formed on the inner side surface of the side wall side beam body 10 along the length direction of the side wall side beam body 10.
Boundary beam turn-ups 20 adopts SMC compression molding, specifically includes:
step S1021: and placing the raw materials in the lower die of the flanging of the boundary beam.
Step S1022: and controlling the temperature of the lower flanging die of the side beam to be t3, wherein t3 is 68 degrees.
Step S1023: and controlling the temperature of the upper flanging die of the side beam to be t4, wherein t4 is 68 degrees.
Step S1024: the pressure of the press was controlled at f2, where f2 was 30 mpa.
Step S1025: the dwell time was controlled to be h2, where h2 was 5 seconds.
Step S103: EPP wind shielding foam 40 is integrated at the front end of the molded side body side sill main body 10.
Step S2: the mounting bracket 30 is formed by a POM injection molding process.
Step S3: the side body edge beam main body 10, the edge beam flanging 20 and the mounting bracket 30 are connected in an adhesive way. The method comprises the following steps:
step S301: structural adhesive 200 is arranged in the adhesive groove 101 of the side sill body 10.
Step S302: the edge beam flanges 20 and the mounting brackets 30 are arranged on the structural adhesive 200 of the corresponding adhesive groove 101.
Step S4: and carrying out local grinding, cooling forming and spraying treatment on the assembled side surrounding edge beam 100. And packaging and warehousing after the treatment.
Example two:
a manufacturing method of a side wall boundary beam of a vehicle body comprises the following steps:
step S1: the side wall side beam body 10 and the side beam flanging 20 are formed by SMC compression molding.
Side wall boundary beam body 10 adopts SMC compression molding, specifically includes:
step S1010: a glue groove die used for forming the glue groove 101 is reserved on the lower die of the side wall boundary beam body and comprises a first glue groove die corresponding to the boundary beam flanging 20 and a second glue groove die corresponding to the mounting bracket 30.
Step S1011: the fastener 50 is embedded in the lower die of the side wall boundary beam body.
Step S1012: and placing the raw materials in the lower die of the side wall boundary beam body in a subsection mode.
Step S1013: and controlling the temperature of the lower die of the side wall beam body to be t1, wherein t1 is 145 degrees.
Step S1014: and controlling the temperature of the upper die of the side wall beam body to be t2, wherein t2 is 140 degrees.
Step S1015: the pressure of the press was controlled to be f1, where f1 was 60 mpa.
Step S1016: the dwell time was controlled to be h1, where h1 was 300 seconds.
A plurality of reinforcing ribs are formed on the inner side surface of the side wall side beam body 10 along the length direction of the side wall side beam body 10.
Boundary beam turn-ups 20 adopts SMC compression molding, specifically includes:
step S1021: and placing the raw materials in the lower die of the flanging of the boundary beam.
Step S1022: and controlling the temperature of the lower flanging die of the side beam to be t3, wherein t3 is 80 degrees.
Step S1023: and controlling the temperature of the flanging upper die of the edge beam to be t4, wherein t4 is 80 degrees.
Step S1024: the pressure of the press was controlled to be f2, where f2 was 60 mpa.
Step S1025: the dwell time was controlled to be h2, where h2 was 15 seconds.
Step S103: EPP wind shielding foam 40 is integrated at the front end of the molded side body side sill main body 10.
Step S2: the mounting bracket 30 is formed by a POM injection molding process.
Step S3: the side body edge beam main body 10, the edge beam flanging 20 and the mounting bracket 30 are connected in an adhesive way. The method comprises the following steps:
step S301: structural adhesive 200 is arranged in the adhesive groove 101 of the side sill body 10.
Step S302: the edge beam flanges 20 and the mounting brackets 30 are arranged on the structural adhesive 200 of the corresponding adhesive groove 101.
Step S4: and carrying out local grinding, cooling forming and spraying treatment on the assembled side surrounding edge beam 100. And packaging and warehousing after the treatment.
Example three:
a manufacturing method of a side wall boundary beam of a vehicle body comprises the following steps:
step S1: the side wall side beam body 10 and the side beam flanging 20 are formed by SMC compression molding.
Side wall boundary beam body 10 adopts SMC compression molding, specifically includes:
step S1010: a glue groove die used for forming the glue groove 101 is reserved on the lower die of the side wall boundary beam body and comprises a first glue groove die corresponding to the boundary beam flanging 20 and a second glue groove die corresponding to the mounting bracket 30.
Step S1011: the fastener 50 is embedded in the lower die of the side wall boundary beam body.
Step S1012: and placing the raw materials in the lower die of the side wall boundary beam body in a subsection mode.
Step S1013: and controlling the temperature of the lower die of the side wall beam body to be t1, wherein t1 is 150 ℃.
Step S1014: and controlling the temperature of the upper die of the side wall beam body to be t2, wherein t2 is 140 degrees.
Step S1015: the pressure of the press was controlled at f1, where f1 was 90 mpa.
Step S1016: the dwell time was controlled to h1, where h1 was 380 seconds.
A plurality of reinforcing ribs are formed on the inner side surface of the side wall side beam body 10 along the length direction of the side wall side beam body 10.
Boundary beam turn-ups 20 adopts SMC compression molding, specifically includes:
step S1021: and placing the raw materials in the lower die of the flanging of the boundary beam.
Step S1022: and controlling the temperature of the lower flanging die of the side beam to be t3, wherein t3 is 92 degrees.
Step S1023: and controlling the temperature of the upper flanging die of the side beam to be t4, wherein t4 is 92 degrees.
Step S1024: the pressure of the press was controlled at f2, where f2 was 90 mpa.
Step S1025: the dwell time was controlled to be h2, where h2 was 25 seconds.
Step S103: EPP wind shielding foam 40 is integrated at the front end of the molded side body side sill main body 10.
Step S2: the mounting bracket 30 is formed by a POM injection molding process.
Step S3: the side body edge beam main body 10, the edge beam flanging 20 and the mounting bracket 30 are connected in an adhesive way. The method comprises the following steps:
step S301: structural adhesive 200 is arranged in the adhesive groove 101 of the side sill body 10.
Step S302: the edge beam flanges 20 and the mounting brackets 30 are arranged on the structural adhesive 200 of the corresponding adhesive groove 101.
Step S4: and carrying out local grinding, cooling forming and spraying treatment on the assembled side surrounding edge beam 100. And packaging and warehousing after the treatment.
Other configurations and operations of the method of manufacturing a body side sill according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The manufacturing method of the side wall side beam of the automobile body is characterized in that the side wall side beam comprises a side wall side beam body, a side beam flanging and a mounting bracket, and the manufacturing method comprises the following steps:
the side wall side beam body and the side beam flanging are formed by SMC compression molding;
the mounting bracket is formed by injection molding;
and bonding and connecting the side wall boundary beam main body, the boundary beam flanging and the mounting bracket.
2. The method of manufacturing a vehicle body side body sill according to claim 1, wherein said side body sill body and said sill flange are SMC compression molded, and said side body side molding with SMC compression molded includes:
the raw materials are placed in the lower die of the side wall boundary beam body in a segmented mode;
controlling the temperature of the lower die of the side wall side beam body to be t1, wherein t1 is more than or equal to 130 ℃ and less than or equal to 150 ℃;
controlling the temperature of the upper die of the side wall side beam body to be t2, wherein t2 is more than or equal to 120 ℃ and less than or equal to 140 ℃;
controlling the pressure of the press to be f1, wherein f1 is more than or equal to 30 MPa and less than or equal to 90 MPa;
the dwell time is controlled to be h1, wherein h1 is more than or equal to 220 seconds and less than or equal to 380 seconds.
3. The method of manufacturing a vehicle body side surround rail according to claim 1, wherein the step of using SMC compression molding for the side surround rail body and the side surround flanging comprises:
placing the raw materials in the lower die of the edge beam flanging;
controlling the temperature of the lower flanging die of the boundary beam to be t3, wherein t3 is more than or equal to 68 ℃ and less than or equal to 92 ℃;
controlling the temperature of the flanging upper die of the boundary beam to be t4, wherein t4 is more than or equal to 68 ℃ and less than or equal to 92 ℃;
controlling the pressure of the press to be f2, wherein f2 is more than or equal to 30 MPa and less than or equal to 90 MPa;
the dwell time is controlled to be h2, wherein h2 is more than or equal to 5 seconds and less than or equal to 25 seconds.
4. The method of manufacturing a body side sill according to claim 2, wherein said step of placing said stock sections in a side sill body drag further comprises the steps of:
a glue groove die used for forming a glue groove is reserved on the lower die of the side wall boundary beam body, and the glue groove die comprises a first glue groove die corresponding to the edge turning of the boundary beam and a second glue groove die corresponding to the mounting bracket.
5. The method of manufacturing a vehicle body side surround rail according to claim 4, wherein said adhesively bonding said side surround rail main body, said side rail flanges and said mounting bracket together comprises:
arranging structural adhesive in the adhesive groove of the side wall boundary beam body;
and arranging the edge beam flanging and the mounting bracket on the structural adhesive of the corresponding adhesive groove.
6. The method of manufacturing a body side sill according to claim 2, wherein said step of placing said stock sections in a side sill body drag further comprises the steps of:
the side wall boundary beam body lower die is embedded with a fastener.
7. The method of manufacturing a body side rail according to claim 1, wherein after said attaching said side rail body, said rail flanges and said mounting bracket together, further comprises:
and carrying out local polishing, cooling forming and spraying treatment on the assembled side wall boundary beam.
8. The method of claim 1, wherein the mounting bracket is formed by a POM injection molding process.
9. The method of manufacturing a vehicle body side surround rail according to claim 1, wherein the side surround rail body and the side rail flanges are molded by SMC molding, and further comprising:
EPP wind shielding foam is integrated at the front end of the molded side wall boundary beam main body.
10. The method of manufacturing a vehicle body side surround rail according to claim 1, wherein the side surround rail body and the side rail flanges are molded by SMC molding, and further comprising:
and a plurality of reinforcing ribs are formed on the inner side surface of the side wall side beam body along the length direction of the side wall side beam body.
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| CN202011328643.0A CN112622317A (en) | 2020-11-24 | 2020-11-24 | Method for manufacturing side wall side beam of vehicle body |
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| CN202011328643.0A CN112622317A (en) | 2020-11-24 | 2020-11-24 | Method for manufacturing side wall side beam of vehicle body |
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Application publication date: 20210409 |