A method of processing a reinforcement

Abstract

The embodiment of the application relates to a processing method of a reinforcing part, and belongs to the technical field of vehicle manufacturing. A plate part clamped by a pressing surface is subjected to drawing treatment to obtain a formed part located in a region surrounded by the pressing surface; the formed part comprises at least two formed subparts relatively arranged along a first direction, and a flange edge of the reinforcing part is located on a side of the corresponding two formed subparts along the first direction and close to each other; the pressing surface and the formed part are subjected to slitting treatment to obtain separated formed subparts; and the reinforcing part is obtained according to the formed subparts. The flange edge is located between the corresponding two formed subparts along the first direction, so that the flange edge is away from the pressing surface region where material flow changes relatively sharply in the drawing process along the first direction, the material flow of the region where the flange edge is located is reduced in the drawing process, the thickness change at the flange edge is uniform and the forming is uniform, and the flatness of the surface of the flange edge is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle manufacturing technology, and specifically to a method for processing a reinforcing component. Background Technology

[0002] In the vehicle manufacturing process, the appearance quality of the door, as an outer covering component, directly affects the overall visual quality of the vehicle. Doors typically employ an edge-wrapping process, where the flange edges of the door's reinforcing components are encased within the edge-wrapping structure to enhance local strength.

[0003] In related technologies, the flatness of the flange edge surface of the reinforcing member needs to be improved. Summary of the Invention

[0004] This application provides a method for processing a reinforcing member to improve the flatness of the flange edge surface.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: This application provides a method for processing a reinforcing member, the reinforcing member having a flange edge for fastening with the outer panel of a vehicle door, comprising: The plate held by the pressure surface is drawn to obtain a shaped part located in the area enclosed by the pressure surface. The shaped part includes at least two shaped sub-parts arranged opposite each other along a first direction. Each shaped sub-part includes the reinforcing member. The flange edge of the reinforcing member is located on the side of the two corresponding shaped sub-parts that are close to each other along the first direction. The molded part is slit to obtain separate molded sub-parts; A reinforcing member is obtained from the molded sub-part.

[0006] In this embodiment, the flange edge is located between two corresponding forming sub-parts in the first direction, so that the flange edge is far away from the pressure surface area where the material flow changes drastically during the drawing process, thereby reducing the material flowability in the flange edge area during the drawing process, making the thickness change and forming uniform at the flange edge, and improving the flatness of the flange edge surface.

[0007] In some embodiments, the formed part protrudes above the pressure surface in a direction opposite to the stamping direction, the stamping direction being arranged intersecting the first direction, and the vertical distance between the flange edge and the extension surface of the pressure surface is greater than the vertical distance between the edge of the formed part near the pressure surface and the extension surface of the pressure surface.

[0008] In this embodiment, the lower part of the outer side of the molded part is used as the pressing surface, which reduces the downward movement distance of the pressing surface and helps to save materials.

[0009] In some embodiments, the angle between the stamping direction and the flange edge of the formed part is 75° to 105°.

[0010] In this embodiment of the application, the angle between the cutting tool and the flange edge is within a suitable range during the cutting process, thereby reducing the generation of burrs during the cutting process while meeting the requirements for cutting edge strength.

[0011] In some embodiments, a reinforcement is obtained from the molded sub-part, comprising: The forming sub-part is shaped to obtain a reinforcing part, wherein the forming stroke of the forming sub-part during the forming process is zero.

[0012] In this embodiment, the forming stroke of the formed sub-part is zero during the forming process, which reduces the material flow of the formed sub-part during the forming process, reduces wrinkling and uneven deformation of the flange edge during the forming process, and improves the flatness of the flange edge surface.

[0013] In some embodiments, the pressure surface corresponding to the area where the flange edge is located is a first sub-surface, and the first sub-surface is a plane.

[0014] In this embodiment, the initial pressing line length in the flange edge area is relatively short, which is conducive to uniform deformation in the flange edge area and reduces the risk of uneven flange edge surface.

[0015] In some embodiments, the distance from the first sub-face to the flange edge along the stamping direction is a first distance, the first distance being equal along the extension direction of the flange edge, and the extension direction of the flange edge being arranged to intersect the first direction and the stamping direction respectively.

[0016] In this embodiment, the drawing stroke at each position on the flange edge is made equal, reducing the possibility of uneven material changes at each position on the flange edge and improving the surface flatness of the flange edge.

[0017] In some embodiments, the molded part further includes a first process supplement portion located between the reinforcing member and the blank holder along the stamping direction, wherein the distance from the first process supplement portion to the blank holder along the stamping direction is unequal, so that the first distance is equal along the extension direction of the flange edge.

[0018] In this embodiment of the application, the difference in forming depth at various locations on the flange edge is compensated for by the first process shaping, which causes the difference in material line length at the flange edge, so that the drawing stroke at various locations on the flange edge is equal, thereby improving the surface flatness of the flange edge.

[0019] In some embodiments, the formed part includes a scrap area located between the two flange edges, the scrap area including process ribs protruding from the flange edges in the stamping direction.

[0020] In this embodiment, the process ribs make the material elongation rate at different width positions along the first direction of the waste area tend to be consistent, so that the deformation of the flange edge area is more uniform and the unevenness of the flange edge thickness is reduced.

[0021] In some embodiments, the process ribs are provided at equal distances from the flange edges on both sides along the first direction.

[0022] In this embodiment, the material between the process rib and the flange edge is used for buffering to reduce the adverse effects of uneven deformation at the edge of the process rib on the flange edge.

[0023] In some embodiments, the height of the process rib along the stamping direction is a preset height, which first increases and then decreases along the extension direction of the flange edge.

[0024] In this embodiment, the material ductility of the wider and narrower parts of the waste area along the first direction is made more consistent, so that the deformation of the waste area is more uniform and the deformation uniformity of the flange edge is improved.

[0025] In some embodiments, the distance between the edge of the process rib along the first direction and the flange edge on the corresponding side is a second distance, and the second distance is 2mm to 3mm.

[0026] In this embodiment, the width of the waste area along the first direction is kept within a suitable range to reduce material waste while meeting the edge strength requirements.

[0027] In some embodiments, the maximum value of the preset height is 3mm to 5mm.

[0028] In this embodiment, the height of the process rib is within a suitable range, so that the height of the process rib meets the uniform deformation requirements at different widths of the waste area.

[0029] In some embodiments, the reinforcing member has a recessed area on the side opposite to the flange edge along the first direction, and the molded part further includes a second process supplement, which is located between the sidewall of the recessed area and the parting line along the first direction, so that the parting line and the sidewall of the recessed area are at least partially spaced apart.

[0030] In this embodiment, the parting line and the sidewall of the recessed area are at least partially spaced apart to reduce the drastic changes in the parting line caused by the edge changes of the reinforcing member.

[0031] In some embodiments, the pressing surface and the molded part are slit to obtain separate molded sub-parts, including: The waste area between the flange edges on the molded part is cut into sections and steps by different processes.

[0032] In this embodiment, no scrap cutter is used for cutting the scrap area between the flange edges, thus reducing burrs on the flange edges.

[0033] The beneficial effects of this application are: The processing method for the reinforcing member provided in this application embodiment involves drawing a plate clamped by a pressure surface to obtain a formed part located within the area enclosed by the pressure surface. The flange edge of the reinforcing member is located on the side where two corresponding formed sub-parts are close to each other along a first direction. The pressure surface surrounds the outside of the formed part, and the flange edge is located between the two corresponding formed sub-parts along the first direction. This keeps the flange edge away from the pressure surface area where the material flow changes drastically during the drawing process, reducing the material flowability in the area where the flange edge is located during the drawing process, making the thickness change and forming uniform at the flange edge, and improving the flatness of the flange edge surface. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the molded part provided in the embodiments of this application; Figure 2 This is a structural schematic diagram of the molded part from another perspective provided in the embodiments of this application; Figure 3 A projection view of the molded part along the stamping direction provided in an embodiment of this application; Figure 4 for Figure 3 Cross-sectional view at point AA; Figure 5 for Figure 4 Enlarged view at point B; Figure 6 A schematic diagram of the structure of the reinforcing member provided in the embodiments of this application; Figure 7 Flowchart of the processing method for the reinforcing member provided in the embodiments of this application Figure 1 ; Figure 8 Flowchart of the processing method for the reinforcing member provided in the embodiments of this application Figure 2 .

[0035] Explanation of reference numerals in the attached figures 1. Molded part; 11. Molded sub-part; 111. Reinforcing part; 112. Flange edge; 113. Recessed area; 12. First process supplement section; 13. Scrap area; 131. Process rib; 14. Second process supplement section; 2. Pressing surface; 21. First sub-surface; 211. Extension surface of the first sub-surface; 3. Parting line. Detailed Implementation

[0036] The embodiments of this application will be described below with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be understood that the preferred embodiments are only for illustrating this application and are not intended to limit the scope of protection of this application.

[0037] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. Therefore, the drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0038] In related technologies, the reinforcing member has a flange edge, which is clamped within the edging structure of the outer door panel to fasten the reinforcing member to the outer door panel. When the flange edge is in close contact with the outer door panel, and the surface flatness of the flange edge facing the outer side of the door is poor, after the reinforcing member is fastened to the outer door panel, the uneven parts on the surface of the reinforcing member will lift the outer door panel, resulting in unevenness on the outer surface of the outer door panel and causing damage to the outer surface of the door panel.

[0039] This application provides a method for processing a reinforcing member. Please refer to [link to relevant documentation]. Figures 1-7 The reinforcing member has a flange edge for engaging with the outer door panel, and the processing method includes: Step S1: The plate held by the pressure surface is drawn to obtain a molded part located in the area enclosed by the pressure surface; the molded part includes at least two molded sub-parts arranged opposite each other along a first direction, each molded sub-part including a reinforcing member, the flange edge of the reinforcing member being located close to each other between the corresponding two molded sub-parts along the first direction.

[0040] Step S2: The pressing surface and the molded part are cut to obtain separate molded sub-parts.

[0041] Step S3: Obtain the reinforcing part based on the formed sub-part.

[0042] It should be noted that the pressing surface 2 refers to the solid sheet material surrounding the molded part 1.

[0043] For example, no water-cutting sealing strip is provided on the outer panel of the door.

[0044] For example, the pressure ring first contacts the outer pressure surface 2 and clamps the pressure surface 2. The middle part of the plate has not yet contacted the mold. The mold drives the clamped pressure surface 2 to move down and cooperates with the punch and die to stretch and form the plate.

[0045] For example, the plate is trapezoidal.

[0046] The first direction is shown by arrow R1 in the figure.

[0047] In this embodiment, the plate held by the pressure surface 2 is drawn to obtain a molded part 1 located in the area enclosed by the pressure surface 2. The flange edge 112 of the reinforcing part 111 is located on the side where the two corresponding molded sub-parts 11 are close to each other along the first direction. The pressure surface 2 surrounds the outside of the molded part 1, and the flange edge 112 is located between the two corresponding molded sub-parts 11 along the first direction. This makes the flange edge 112 away from the pressure surface 2 area where the material flow changes more drastically during the drawing process, thereby reducing the material flowability in the area where the flange edge 112 is located during the drawing process, making the thickness change and molding at the flange edge 112 uniform, and improving the flatness of the flange edge 112 surface.

[0048] In some embodiments, please refer to Figure 1 and Figure 2 The formed part 1 protrudes from the upper side of the pressure surface 2 in a direction opposite to the stamping direction. The stamping direction is arranged to intersect with the first direction. The vertical distance between the flange edge 112 and the extension surface of the pressure surface 2 is greater than the vertical distance between the edge of the formed part 1 near the pressure surface 2 and the extension surface of the pressure surface 2.

[0049] It should be noted that the stamping direction intersecting with the first direction means that the stamping direction is not parallel to the first direction.

[0050] It should be noted that the vertical distance between the flange edge 112 and the extension surface of the pressure surface 2 refers to the vertical distance from the flange edge 112 to the extension surface of the pressure surface located on both sides of the flange edge 112 along the extension direction of the flange edge 112.

[0051] For example, the area where the flange edge 112 is located on the molded part 1 protrudes from the blank holder surface 2 away from the stamping direction.

[0052] For example, the stamping direction is from the side of the reinforcement 111 away from the outer surface of the door panel to the side of the reinforcement 111 facing the outer surface of the door panel.

[0053] For example, during the sheet metal drawing process, the blank holder first contacts the blank holder 2 and drives the entire blank holder 2 to move downward. During the downward movement, the blank holder presses the flat blank holder 2 into a curved surface, and the punch and die gradually close to draw the sheet metal into shape.

[0054] The stamping direction is shown by arrow R2 in the figure.

[0055] In this embodiment, the vertical distance between the flange edge 112 and the extension surface of the pressure surface 2 is greater than the vertical distance between the edge of the molded part 1 near the pressure surface 2 and the extension surface of the pressure surface 2. The drawing stroke of the middle region of the molded part 1 is greater than the drawing stroke of the edge position of the molded part 1, so that the plate at the lower position on the outer side of the molded part 1 serves as the pressure surface 2, reducing the downward movement distance of the pressure surface 2, which is beneficial to saving materials.

[0056] It is understood that the vertical distance between the flange edge 112 and the extended surface of the pressure surface 2 is not limited to being greater than the vertical distance between the edge of the molded part 1 near the pressure surface 2 and the extended surface of the pressure surface 2. For example, the vertical distance between the flange edge 112 and the extended surface of the pressure surface 2 is less than the vertical distance between the edge of the molded part 1 near the pressure surface 2 and the extended surface of the pressure surface 2.

[0057] In some embodiments, please refer to Figure 5 The angle between the stamping direction and the flange edge 112 of the formed part 1 is 75°~105°.

[0058] It should be noted that the angle between the stamping direction and the flange edge 112 of the formed part 1 refers to the angle between the intersection of the plane parallel to the stamping direction and the first direction and the flange edge 112 and the stamping direction.

[0059] For example, the angle between the stamping direction and the flange edge 112 of the formed part 1 is a preset angle, as shown by the symbol x in the figure.

[0060] For example, the preset included angle is 75°, 80°, 85°, 90°, 95°, 100° or 105°.

[0061] For example, the preset included angle is 90°~105°.

[0062] In this embodiment, the angle between the stamping direction and the flange edge 112 of the formed part 1 is 75°~105°. The angle between the stamping direction and the flange edge 112 is within a suitable range. During the cutting process, the angle between the cutting tool and the flange edge 112 is within a suitable range. While meeting the edge strength requirements, the generation of burrs during the cutting process is reduced.

[0063] It is understood that the angle between the stamping direction and the flange edge 112 of the formed part 1 is not limited to 75°~105°. For example, the angle between the stamping direction and the flange edge 112 of the formed part 1 is less than 75° or greater than 105°.

[0064] In some embodiments, please refer to Figure 8 The reinforcing member 111 is obtained from the molded sub-part 11, including: Step S31: Shape the formed sub-part to obtain the reinforcing part. The shaping stroke of the formed sub-part during the shaping process is zero.

[0065] It should be noted that the forming stroke of the formed sub-part 11 during the forming process is zero, which means that the formed sub-part 11 has almost no stretching deformation during the forming process.

[0066] For example, during the shaping process of the molded sub-part 11, the bottom of the molded sub-part 11 is supported and flattened so that the molded sub-part 11 has no downward stroke.

[0067] For example, during the sheet metal drawing process, the clamping ring clamps the blank holder 2 and presses and draws the sheet metal into place from top to bottom in one go.

[0068] In this embodiment of the application, the forming sub-part 11 is shaped to obtain the reinforcing part 111. The forming stroke of the forming sub-part 11 during the forming process is zero, which reduces the material flow of the forming sub-part 11 during the forming process, reduces wrinkling and uneven deformation of the flange edge 112 during the forming process, and improves the flatness of the flange edge 112 surface.

[0069] It is understood that the forming stroke of the molded sub-part 11 during the forming process is not limited to zero. For example, when the molded sub-part 11 is formed to obtain the reinforcing member 111, the forming stroke of the molded sub-part 11 during the forming process is greater than zero.

[0070] In some embodiments, please refer to Figures 1-5 The pressing surface 2 corresponding to the area where the flange edge 112 is located is the first sub-surface 21, and the first sub-surface 21 is a plane.

[0071] For example, the pressing surface 2 corresponding to the area where the flange edge 112 is located refers to the pressing surface 2 that is projected along a direction perpendicular to the first direction and the stamping direction, and whose projection line coincides with the projection line of the area where the flange edge 112 is located on the plate.

[0072] For example, the projection surface of the first sub-face 21 along the stamping direction intersects the extension surface of the projection surface of the flange edge 112 along the stamping direction.

[0073] For example, the sheet metal is flat before drawing and forming. During the drawing process, the blank holder 2 is extended from a flat surface into a curved surface. The blank holder ring first contacts the blank holder 2 and drives the entire blank holder 2 to move downward. During the downward movement, the blank holder ring presses the flat blank holder 2 into a curved surface.

[0074] In this embodiment, the pressing surface 2 corresponding to the area where the flange edge 112 is located is the first sub-surface 21. The first sub-surface 21 is a plane, which makes the initial pressing line length of the area where the flange edge 112 is located shorter, which is conducive to uniform deformation of the area where the flange edge 112 is located and reduces the risk of unevenness of the surface of the flange edge 112.

[0075] It is understood that the first sub-face 21 is not limited to being a plane. For example, the first sub-face 21 is a curved surface.

[0076] In some embodiments, please refer to Figures 1-5 The distance from the first sub-face 21 to the flange edge 112 along the stamping direction is the first distance. The first distance is equal along the extension direction of the flange edge 112. The extension direction of the flange edge 112 is arranged to intersect the first direction and the stamping direction respectively.

[0077] It should be noted that the extension direction of flange edge 112 intersects with the first direction and the stamping direction respectively, meaning that the extension direction of flange edge 112 is not parallel to the first direction and the extension direction of flange edge 112 is not parallel to the stamping direction.

[0078] It should be noted that the first distance is the distance from the flange edge 112 along the first direction to the extension surface 211 of the first sub-face.

[0079] It should be noted that the first distance being equal along the extension direction of flange edge 112 means that the first distance is equal at different positions along the extension direction of flange edge 112.

[0080] For example, the first distance is the distance from the flange edge 112 toward the scrap area 13 along the first direction to the first sub-face 21 along the stamping direction.

[0081] For example, the vertical distance between the flange edge 112 and the extended surface of the pressure surface 2 is the first distance.

[0082] The first distance is shown as d1 in the figure.

[0083] The extension direction of flange edge 112 is shown by arrow R3 in the figure.

[0084] In this embodiment, the first distance is equal along the extension direction of the flange edge 112, so that the drawing stroke at each position on the flange edge 112 is equal, reducing the possibility of uneven material change at each position on the flange edge 112 and improving the surface flatness of the flange edge 112.

[0085] It is understood that the first distance is not necessarily equal along the extension direction of the flange edge 112. For example, the first distance varies along the extension direction of the flange edge 112.

[0086] In some embodiments, please refer to Figure 1 and Figure 2 The molded part 1 also includes a first process supplement part 12, which is located between the reinforcing member 111 and the pressure surface 2 along the stamping direction. The distance from the first process supplement part 12 to the pressure surface 2 along the stamping direction is not equal, so that the first distance is equal along the extension direction of the flange edge 112.

[0087] For example, the flange edge 112 has an irregular shape, and the distance between each position of the flange edge 112 along the extension direction of the flange edge 112 and the same position of the reinforcing member 111 other than the flange edge 112 is not equal.

[0088] For example, when the pressing surface 2 and the molded part 1 are cut, the first process supplement 12 is removed.

[0089] For example, the sum of the height of any position on the flange edge 112 along the stamping direction and the distance from the first process supplement 12 at the corresponding position to the pressure surface 2 along the stamping direction is equal to the first distance.

[0090] In this embodiment, the first process supplement 12 is located between the reinforcing member 111 and the blank holder 2 along the stamping direction. The distance from the first process supplement 12 to the blank holder 2 along the stamping direction is not equal, so that the first distance is equal along the extension direction of the flange edge 112. The first process shaping compensates for the difference in forming depth at various positions on the flange edge 112, which causes the difference in material line length at the flange edge 112, so that the drawing stroke at various positions on the flange edge 112 is equal, thereby improving the surface flatness of the flange edge 112.

[0091] It is understood that the distance from the first process supplement 12 to the blank holder 2 along the stamping direction is not limited to being unequal. For example, the distance from the first process supplement 12 to the blank holder 2 along the stamping direction is equal.

[0092] In some embodiments, please refer to Figures 1-5 The molded part 1 includes a scrap area 13 located between two flange edges 112, and the scrap area 13 includes process ribs 131 protruding from the flange edges 112 along the stamping direction.

[0093] For example, the edge of the flange 112 along one side in the first direction is arc-shaped.

[0094] For example, the distances from one flange edge 112 to the other flange edge 112 along the first direction are not equal.

[0095] It is understandable that the drawing deformation is greater where the width of the scrap area 13 is narrower, and the material thickness varies more where the width of the scrap area 13 is narrower; the drawing deformation is smaller where the width of the scrap area 13 is wider, and the material thickness varies less where the width of the scrap area 13 is wider.

[0096] In this embodiment, the scrap area 13 includes a process rib 131 that protrudes from the flange edge 112 along the stamping direction. The process rib 131 makes the material elongation rate of the scrap area 13 at different width positions along the first direction more consistent, so that the deformation of the area where the flange edge 112 is located is more uniform, and the uneven thickness of the flange edge 112 is reduced.

[0097] It is understood that the scrap area 13 is not limited to including the process rib 131 that protrudes from the flange edge 112 along the stamping direction. Exemplarily, the scrap area 13 is at approximately the same height as the flange edge 112 along the stamping direction.

[0098] In some embodiments, please refer to Figures 3-5 The process ribs 131 are set at equal distances from the flange edges 112 on both sides along the first direction.

[0099] In this embodiment, the process rib 131 is equidistant from the flange edges 112 on both sides along the first direction. The material between the process rib 131 and the flange edges 112 is used for buffering to reduce the adverse effects of uneven deformation at the edge of the process rib 131 on the flange edges 112.

[0100] It is understood that the process rib 131 is not limited to being equidistant from the flange edges 112 on both sides along the first direction. Exemplarily, the process rib 131 contacts the flange edges 112 on both sides along the first direction.

[0101] In some embodiments, please refer to Figure 5 The height of the process rib 131 along the stamping direction is a preset height, which first increases and then decreases along the extension direction of the flange edge 112.

[0102] The preset height is shown as marked with h in the figure.

[0103] For example, the distance between one flange edge 112 and the other flange edge 112 along the first direction first increases and then decreases along the extension direction of the flange edge 112.

[0104] For example, the minimum distance between one flange edge 112 and the other flange edge 112 along the first direction is 5mm to 8mm.

[0105] It is understandable that the higher the drawing height of the process rib 131, the thinner the plate thickness in the area where the process rib 131 is located; the narrower the width of the process rib 131, the thinner the plate thickness in the area where the process rib 131 is located.

[0106] In this embodiment, the height of the process rib 131 along the stamping direction is a preset height. The preset height first increases and then decreases along the extension direction of the flange edge 112. The height of the process rib 131 changes with the shape of the flange edge 112. In the narrower part of the scrap area 13 along the first direction, the height of the process rib 131 is smaller, and in the wider part of the scrap area 13 along the first direction, the height of the process rib 131 is higher. This makes the material ductility of the wider and narrower parts of the scrap area 13 along the first direction more consistent, making the deformation of the scrap area 13 more uniform and improving the deformation uniformity of the flange edge 112.

[0107] It is understood that the preset height is not limited to increasing and then decreasing along the extension direction of the flange edge 112. For example, the preset height remains unchanged along the extension direction of the flange edge 112.

[0108] In some embodiments, please refer to Figure 5 The distance between the edge of the process rib 131 and the corresponding flange edge 112 along the first direction is the second distance, which is 2mm~3mm.

[0109] For example, the edge of the process rib 131 along the first direction is the first edge, the flange edge 112 of the process rib 131 along the first direction toward the first edge is the first flange, the edge of the first flange along the first direction toward the process rib 131 is the second edge, and the second distance is the distance between the first edge and the second edge along the first direction.

[0110] mm represents millimeters.

[0111] For example, the second distance is 2mm, 2.5mm or 3mm.

[0112] The second distance is shown as d2 in the figure.

[0113] In this embodiment, the second distance is 2mm~3mm. The distance between the edge of the process rib 131 and the corresponding flange edge 112 along the first direction is within a suitable range, so that the width of the waste area 13 along the first direction is within a suitable range, thereby reducing material waste while meeting the edge strength requirements.

[0114] It is understood that the second distance is not limited to 2mm to 3mm. For example, the second distance may be less than 2mm or greater than 3mm.

[0115] In some embodiments, the maximum value of the preset height is 3mm to 5mm.

[0116] For example, the maximum value of the preset height is 3mm, 4mm or 5mm.

[0117] For example, the preset height gradually increases from 0 to 3mm along the extension direction of the flange edge 112, then gradually increases to 5mm, and then gradually decreases from 5mm to 3mm to 0.

[0118] In this embodiment, the maximum value of the preset height is 3mm~5mm, and the height of the process rib 131 is within a suitable range so that the height of the process rib 131 meets the uniform deformation requirements at different widths of the waste area 13.

[0119] It is understood that the maximum preset height is not limited to 3mm to 5mm. For example, the maximum preset height may be less than 3mm or greater than 5mm.

[0120] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 6 The reinforcing member 111 has a recessed area 113 recessed along the first direction on the side away from the flange edge 112. The molded part 1 also includes a second process supplement 14, which is located between the side wall of the recessed area 113 and the parting line 3 along the first direction, so that the parting line 3 and the side wall of the recessed area 113 are at least partially spaced apart.

[0121] The parting line 3 is the boundary line between the molded part 1 and the blank holder 2 held by the blank holder ring. The molded part 1 is within the area enclosed by the parting line 3, while the blank holder 2 is outside the area enclosed by the parting line 3.

[0122] For example, the direction of the parting line 3 changes slowly with the outer contour shape of the molded part 1.

[0123] In this embodiment, the second process supplement 14 is located between the side wall of the recessed area 113 and the parting line 3 along the first direction, so that the parting line 3 and the side wall of the recessed area 113 are at least partially spaced apart, thereby reducing the drastic changes in the parting line 3 caused by the edge changes of the reinforcing member 111.

[0124] It is understood that the second process supplement 14 is not limited to being provided between the sidewall of the recessed area 113 and the parting line 3 along the first direction. Exemplarily, the shape of the parting line 3 is substantially in contact with the sidewall of the recessed area 113.

[0125] In some embodiments, please refer to Figure 8 The pressing surface 2 and the molded part 1 are split to obtain separate molded sub-parts 11, including: Step S21: The waste area between the flange edges on the molded part is cut into sections and steps by different processes.

[0126] For example, the waste area between flange edges 112 is cut in two stages.

[0127] In this embodiment of the application, the waste area between the flange edges 112 on the molded part 1 is cut in sections and steps by different processes. The waste area between the flange edges 112 is not cut with a waste cutter, thereby reducing the burrs on the flange edges 112.

[0128] It is understood that the process is not limited to segmenting and cutting the waste area between the flange edges 112 on the molded part 1 in different steps. For example, the waste area between the flange edges 112 on the molded part 1 is cut once using two types of cutting tools. One set of cutting tools separates the waste area 13 from the molded sub-part 11, while the other set of cutting tools cuts the waste into small pieces and removes them.

[0129] In some embodiments, the process of cutting the pressing surface 2 and the molded part 1 includes punching holes in the molded part 1.

[0130] In some embodiments, the orientation of the molded part 1 is adjusted such that, when viewed along the Z-axis, the orientation of the molded part 1 is adjusted so that the flange edge 112 is basically parallel to the Y-axis, and when viewed along the X-axis, the orientation of the flange surface of the molded part 1 is basically parallel to the Y-axis.

[0131] It should be noted that the X-axis, Y-axis, and Z-axis are coordinates used in analysis software.

[0132] In some embodiments, through analysis and verification using AUTOFORM software, the surface of the reinforcing member 111 manufactured by the processing method of the reinforcing member 111 in this application embodiment meets the requirements of the A-surface evaluation standard in all four indicators: whetstone, thinning rate, principal strain, and secondary strain. The reinforcing member 111 is integrally formed without wrinkles, waves, cracks, or necking.

[0133] A-surface refers to Class A curved surface, which represents a high-quality visible curved surface on the vehicle's exterior, requiring a smooth and continuous surface.

[0134] In some embodiments, the surface of flange edge 112 can meet the A-side evaluation requirements, enabling the outer door panel to meet the A-side quality requirements.

[0135] In some embodiments, bounce compensation is performed based on the results of software analysis.

[0136] In some embodiments, the flatness of the flange edge 112 of the reinforcing member 111 is adjusted during the drawing process, and the subsequent processes follow suit, and the adjustment is performed by machine tool processing.

[0137] The above embodiments are merely preferred embodiments provided to fully illustrate this application, and the scope of protection of this application is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on this application are all within the scope of protection of this application.

Claims

1. A method for processing a reinforcing member, characterized in that, The reinforcing member has a flange edge for engaging with the outer panel of the door, including: The plate held by the pressure surface is drawn to obtain a shaped part located in the area enclosed by the pressure surface. The shaped part includes at least two shaped sub-parts arranged opposite each other along a first direction. Each shaped sub-part includes the reinforcing member. The flange edge of the reinforcing member is located on the side of the two corresponding shaped sub-parts that are close to each other along the first direction. The pressing surface and the molded part are cut to obtain separate molded sub-parts; A reinforcing member is obtained from the molded sub-part.

2. The processing method for the reinforcing member according to claim 1, characterized in that, The formed part protrudes from the upper side of the pressure surface in a direction opposite to the stamping direction. The stamping direction is arranged to intersect with the first direction. The vertical distance between the flange edge and the extension surface of the pressure surface is greater than the vertical distance between the edge of the formed part near the pressure surface and the extension surface of the pressure surface.

3. The processing method for the reinforcing member according to claim 2, characterized in that, The angle between the stamping direction and the flange edge of the formed part is 75°~105°.

4. The processing method for the reinforcing member according to claim 1, characterized in that, A reinforcing member is obtained from the molded sub-part, comprising: The forming sub-part is shaped to obtain a reinforcing part, wherein the forming stroke of the forming sub-part during the forming process is zero.

5. The method for processing the reinforcing member according to any one of claims 1 to 4, characterized in that, The pressure surface corresponding to the area where the flange edge is located is the first sub-surface, and the first sub-surface is a plane.

6. The processing method for the reinforcing member according to claim 5, characterized in that, The distance from the first sub-face to the flange edge along the stamping direction is the first distance. The first distance is equal along the extension direction of the flange edge, and the extension direction of the flange edge is arranged to intersect the first direction and the stamping direction respectively.

7. The processing method for the reinforcing member according to claim 6, characterized in that, The molded part further includes a first process supplement part, which is located between the reinforcing member and the blank holder along the stamping direction. The distance from the first process supplement part to the blank holder along the stamping direction is not equal, so that the first distance is equal along the extension direction of the flange edge.

8. The method for processing the reinforcing member according to any one of claims 1 to 4, characterized in that, The formed part includes a scrap area located between the two flange edges, the scrap area including process ribs protruding from the flange edges along the stamping direction.

9. The processing method for the reinforcing member according to claim 8, characterized in that, The process ribs are provided at equal distances from the flange edges on both sides along the first direction; and / or, The height of the process rib along the stamping direction is a preset height, which first increases and then decreases along the extension direction of the flange edge.

10. The processing method for the reinforcing member according to claim 9, characterized in that, The distance between the edge of the process rib and the flange edge on the corresponding side along the first direction is the second distance, which is 2mm to 3mm; and / or, the maximum value of the preset height is 3mm to 5mm.

11. The method for processing the reinforcing member according to any one of claims 1 to 4, characterized in that, The reinforcing member has a recessed area on the side opposite to the flange edge along the first direction. The molded part further includes a second process supplement, which is located between the sidewall of the recessed area and the parting line along the first direction, so that the parting line and the sidewall of the recessed area are at least partially spaced apart.

12. The method for processing the reinforcing member according to any one of claims 1 to 4, characterized in that, The pressing surface and the molded part are slit to obtain separate molded sub-parts, including: The waste area between the flange edges on the molded part is cut into sections and steps by different processes.

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