Hatchback door inner plate sleeve module, processing die and automobile

Abstract

The utility model provides a hatchback door inner plate sleeve module, a machining die of the hatchback door inner plate sleeve module and an automobile. The hatchback door inner plate sleeve module comprises a hatchback door inner plate and an engine cover reinforcing plate. A window frame of the hatchback door inner plate comprises an interior trim mounting surface, an interior trim mounting surface draft side wall and a rear windshield mounting surface, and the interior trim mounting surface and the interior trim mounting surface draft side wall are matched to be used for mounting an interior trim; the engine cover reinforcing plate is arranged on the rear windshield mounting surface; a material supporting step structure is arranged on the side wall of the trim mounting face draft and located at the corner of a window frame of the hatchback door inner plate. According to the utility model, the material supporting step structure is arranged on the draft side wall of the interior trim mounting surface, is positioned at the corner of the window frame of the inner plate of the hatchback door, and is specifically a two-stage step structure; when the inner plate of the hatchback door is subjected to punch forming, the material supporting step structure plays a role in supporting materials, the stress state of the plate at the position of the window frame is improved, and when punch forming is completed, the corner position of the window frame cannot be broken.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hatchback door technical field especially relates to a hatchback door inner plate sleeve module, processing mould and car. BACKGROUND

[0002] The hatchback door inner plate is generally produced by stamping process, and the window frame position of the hatchback door inner plate is prone to cracking during the stamping forming of the hatchback door inner plate. The following technical solutions are mainly used to solve the cracking problem:

[0003] The first solution is to solve the cracking by opening a blanking hole in the window frame, the second solution is to solve the cracking by adding a composite pressing plate in the window frame, and the third solution is to design the hatchback door inner plate as a segmented inner plate. The first two solutions result in a large amount of waste material inside the window frame, causing cost waste, and the third solution increases the number of processing molds and reduces production efficiency.

[0004] In summary, there is an urgent need to design a structure that can solve the problem of cracking of the window frame position of the hatchback door inner plate during stamping forming. SUMMARY

[0005] The utility model provides a hatchback door inner plate sleeve module, processing mould and car to solve the problem of cracking of the window frame position of the hatchback door inner plate during stamping forming in the production of the hatchback door inner plate.

[0006] A hatchback door inner plate sleeve module includes a hatchback door inner plate and an engine cover reinforcement plate. The window frame of the hatchback door inner plate includes an interior trim mounting surface, an interior trim mounting surface draft wall, and a rear windshield mounting surface. The interior trim mounting surface and the interior trim mounting surface draft wall cooperate to mount the interior trim. The engine cover reinforcement plate is arranged on the rear windshield mounting surface. A material supporting step structure is provided on the interior trim mounting surface draft wall, and the material supporting step structure is located at the corner of the window frame of the hatchback door inner plate.

[0007] Preferably, the step depth of the material supporting step structure is less than or equal to 20 mm;

[0008] The angle between the plane where the interior trim mounting surface draft wall of the hatchback door inner plate is located and the interior trim mounting surface of the hatchback door inner plate is greater than or equal to 20°;

[0009] The angle between the plane where the interior trim mounting surface draft wall of the hatchback door inner plate is located and the plane where the step side wall of the material supporting step structure is located is less than or equal to 45°.

[0010] Preferably, the chamfer between the interior trim mounting surface draft wall of the hatchback door inner plate and the step side wall of the material supporting step structure is greater than or equal to 8 mm, and the inner chamfer of the step of the material supporting step structure is greater than or equal to 8 mm;

[0011] The chamfer between the step side wall of the supporting step structure and the rear windshield mounting surface of the back door inner plate is greater than or equal to 15mm.

[0012] Preferably, the plane where the step upper wall of the supporting step structure is located is parallel to the plane where the inner decoration mounting surface pull-out side wall of the back door inner plate is located.

[0013] Preferably, the engine cover reinforcing plate comprises a reinforcing plate body and a connecting claw arranged on the reinforcing plate body; the connecting claw is used to connect with the rear windshield mounting surface.

[0014] Preferably, the connecting claw comprises a first claw and a second claw.

[0015] The first claw is arranged on the first side of the reinforcing plate body and used to connect with the first end of the rear windshield mounting surface.

[0016] The second claw is arranged on the second side of the reinforcing plate body and used to connect with the second end of the rear windshield mounting surface.

[0017] A processing die for processing the back door inner plate sleeve die element, comprising an upper die, a lower die, a pressure ring, a middle piercing knife and two side piercing knives.

[0018] The upper die is arranged on a press slide block, the lower die is arranged opposite to the upper die, and the pressure ring is arranged between the upper die and the lower die and used to place the back door inner plate sleeve die element.

[0019] The middle piercing knife and the two side piercing knives are arranged on the upper die in intervals; the lower die is provided with a groove, and the groove is arranged opposite to the piercing knives on the upper die.

[0020] Preferably, the length of the two side piercing knives is greater than the profile thickness of the back door inner plate and the engine cover reinforcing plate combined die surface by 24-26mm, and the length of the middle piercing knife is greater than the profile thickness of the back door inner plate and the engine cover reinforcing plate combined die surface by 4-6mm.

[0021] A car comprising the back door inner plate sleeve die element.

[0022] The utility model discloses a back door inner board sleeve module, including back door inner board and engine cover reinforcing plate, the window frame of back door inner board includes interior trim mounting surface, interior trim mounting surface draw side wall and rear windshield mounting surface, and interior trim mounting surface and interior trim mounting surface draw side wall cooperate for installing interior trim. The effect of engine cover reinforcing plate is to support engine cover outer plate, prevent the deformation of engine cover outer plate. When carrying out processing stamping, set up engine cover reinforcing plate on rear windshield mounting surface, set up like this, and engine cover reinforcing plate can prop up the window frame inside excess material of back door inner board, and when processing, make the stress state of window frame corner position be bidirectional stretching state, avoid the situation that back door inner board window frame stamping cracks due to the position appears unidirectional stretching. In addition, engine cover reinforcing plate and back door inner board are stamped into shape in the same set of processing mould, thereby achieving the reuse in waste material cavity, realizing the reduction of mould number, improving material utilization, reducing stamping sheet material uncoiling time, thereby saving mould development cost, improving production efficiency, improving material utilization, realizing the cost reduction of whole vehicle design.

[0023] Compared with the conventional scheme, in the example, the material supporting step structure is arranged on the interior trim mounting surface draw side wall, the material supporting step structure is located at the window frame corner of the back door inner plate, and the material supporting step structure is specifically a two-stage step structure; when the back door inner plate is stamped and formed, the material supporting step structure plays a material supporting role, the stress state of the window frame position is improved, and the window frame corner position will not be broken when stamping and forming are completed; therefore, when the back door inner plate is processed, the diagonal line position of the window frame corner of the back door inner plate does not need to be arranged with a piercing knife on the processing mould, the window frame cracking problem can be solved, the number of moulds is reduced, the mould development cost is saved, the safe production of the back door inner plate is ensured, the whole vehicle development cost is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be briefly introduced the drawings needed to be used in the description of the utility model embodiment, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without paying the creativity labor intensity.

[0025] Figure 1 It is the front view of the back door inner plate in an embodiment of the utility model;

[0026] Figure 2 It is the shaft side view of the material supporting step structure in an embodiment of the utility model;

[0027] Figure 3 It is Figure 1 The sectional view of A in the figure;

[0028] Figure 4It is the front view of the back door assembly in an embodiment of the utility model;

[0029] Figure 5 It is the shaft side view of the engine cover reinforcing plate in an embodiment of the utility model;

[0030] Figure 6 It is the explosion view of the processing die in an embodiment of the utility model.

[0031] 1, back door inner plate, 11, interior trim mounting surface, 12, interior trim mounting surface draft side wall, 13, support material step structure, 14, rear windshield mounting surface, 2, engine cover reinforcing plate, 21, reinforcing plate main body, 22, connecting claw, 221, first claw, 222, second claw, 3, upper concave die, 4, lower convex die, 5, edge ring, 6, middle puncture knife, 7, both sides puncture knife. DETAILED DESCRIPTION

[0032] In order to make the technical problem, technical scheme and beneficial effect solved by the utility model more clearly, the utility model is further described in detail below by combining with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0033] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0034] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] The utility model embodiment provides a back door inner plate sleeve die part, referring to Figure 1 、 Figure 2 and Figure 3The hatchback door inner panel cover mold piece includes a hatchback door inner panel 1 and an engine cover reinforcing plate 2; the window frame of the hatchback door inner panel 1 includes an interior trim mounting surface 11, an interior trim mounting surface draw wall 12, and a rear windshield mounting surface 14; the engine cover reinforcing plate 2 is arranged on the interior trim mounting surface 11; a material supporting step structure 13 is arranged on the interior trim mounting surface draw wall 12, and the material supporting step structure 13 is located at a window frame corner of the hatchback door inner panel 1.

[0036] As an example, the window frame of the hatchback door inner panel 1 includes an interior trim mounting surface 11, an interior trim mounting surface draw wall 12, and a rear windshield mounting surface 14, and the interior trim mounting surface 11 and the interior trim mounting surface draw wall 12 are matched for mounting the interior trim.

[0037] The engine cover reinforcing plate 2 serves to support an engine cover outer panel and prevent the engine cover outer panel from being deformed. When stamping is performed, the engine cover reinforcing plate 2 is arranged on the rear windshield mounting surface 14. In this way, the engine cover reinforcing plate 2 can support the internal excess material of the window frame of the hatchback door inner panel 1, and when the hatchback door inner panel 1 is processed, the stress state of the window frame corner position is in a bidirectional stretching state, thereby avoiding the situation that the hatchback door inner panel 1 is cracked due to unidirectional stretching at the position. In addition, the engine cover reinforcing plate 2 is stamped and formed in the same set of processing molds as the hatchback door inner panel 1, thereby achieving reuse of the waste material cavity, reducing the number of mold sets, improving material utilization, reducing the stamping plate uncoiling time, thereby saving mold development costs, improving production efficiency, improving material utilization, and reducing the overall vehicle design cost.

[0038] Compared with the conventional scheme, in the example, the material supporting step structure 13 is arranged on the interior trim mounting surface draw wall 12, and the material supporting step structure 13 is located at a window frame corner of the hatchback door inner panel 1. The material supporting step structure 13 is specifically a two-step structure. When the hatchback door inner panel 1 is stamped and formed, the material supporting step structure 13 plays a role of supporting material, and the stress state of the window frame position is improved. When stamping and forming are completed, the window frame corner position will not be cracked. Therefore, when the hatchback door inner panel 1 is processed, a piercing knife does not need to be arranged at the diagonal line position of the window frame corner of the hatchback door inner panel 1 on the processing mold, the window frame cracking problem is solved, the number of mold sets is reduced, the mold development cost is saved, the safe production of the hatchback door inner panel 1 is ensured, the overall vehicle development cost is reduced, and the production efficiency is improved.

[0039] In an embodiment, with reference to Figure 3 , the step depth of the material supporting step structure 13 is less than or equal to 20 mm; the included angle between the plane where the interior trim mounting surface draw wall 12 of the hatchback door inner panel 1 is located and the interior trim mounting surface 11 of the hatchback door inner panel 1 is greater than or equal to 20°; and the included angle between the plane where the interior trim mounting surface draw wall 12 of the hatchback door inner panel 1 is located and the plane where the step side wall of the material supporting step structure 13 is located is less than or equal to 45°.

[0040] As an example, the step depth of the material supporting step structure 13, i.e. H in Figure 3 , is less than or equal to 20 mm; the included angle between the plane where the die drawing side wall 12 of the inner trim mounting surface of the back door inner panel 1 is located and the inner trim mounting surface 11 of the back door inner panel 1, i.e. a in Figure 3 , is greater than or equal to 20°; the included angle between the plane where the die drawing side wall 12 of the inner trim mounting surface of the back door inner panel 1 is located and the plane where the step side wall of the material supporting step structure 13 is located, i.e. β in Figure 3 , is less than or equal to 45°; in this way, the material supporting step structure 13 is a two-step structure; when the back door inner panel 1 is formed by stamping, the material supporting step structure 13 plays a material supporting role and improves the stress state of the material at the window frame position, so that the window frame corner position will not be broken when the stamping is completed; thus, when the back door inner panel 1 is processed, a piercing knife does not need to be arranged at the diagonal position of the window frame corner of the back door inner panel 1 on the processing die, so that the window frame cracking problem is solved, the number of dies is reduced, the die development cost is saved, the safe production of the back door inner panel 1 is ensured, the development cost of the whole vehicle is reduced, and the production efficiency is improved.

[0041] In an embodiment, referring to Figure 2 and Figure 3 , the chamfer between the die drawing side wall 12 of the inner trim mounting surface of the back door inner panel 1 and the step side wall of the material supporting step structure 13 is greater than or equal to 8 mm, and the inner chamfer of the material supporting step structure 13 is greater than or equal to 8 mm; the window frame of the back door inner panel 1 further includes a rear windshield mounting surface 14, and the chamfer between the step side wall of the material supporting step structure 13 and the rear windshield mounting surface 14 of the back door inner panel 1 is greater than or equal to 15 mm.

[0042] As an example, in design, the chamfer between the die drawing side wall 12 of the inner trim mounting surface of the back door inner panel 1 and the step side wall of the material supporting step structure 13, i.e. R1 in Figure 3 , is greater than or equal to 8 mm, and the inner chamfer of the material supporting step structure 13, i.e. R2 in Figure 3 , is greater than or equal to 8 mm; the window frame of the back door inner panel 1 further includes a rear windshield mounting surface 14, and the chamfer between the step side wall of the material supporting step structure 13 and the rear windshield mounting surface 14 of the back door inner panel 1, i.e. R3 in Figure 3 , is greater than or equal to 15 mm; in this way, the stamping depth of the back door inner panel 1 can be small, and the situation that the window frame of the back door inner panel 1 is cracked due to a large stamping depth can be further avoided.

[0043] In an embodiment, referring to Figure 3 , the plane where the upper wall of the step of the material supporting step structure 13 is located is parallel to the plane where the die drawing side wall 12 of the inner trim mounting surface of the back door inner panel 1 is located.

[0044] As an example, the plane in which the upper wall of the material supporting step structure 13 is located is parallel to the plane in which the inner decoration mounting surface draft wall 12 of the back door inner panel 1 is located. In this way, the relative position and direction between the upper wall of the material supporting step structure 13 and the inner decoration mounting surface draft wall 12 of the back door inner panel 1 are consistent in the three-dimensional space, which helps to maintain the stability and functionality of the back door inner panel 1.

[0045] In an embodiment, referring to Figure 4 and Figure 5 , the engine cover reinforcing plate 2 comprises a reinforcing plate body 21 and a connecting claw 22 arranged on the reinforcing plate body 21; the connecting claw 22 is used to connect with the rear windshield mounting surface 14.

[0046] As an example, the engine cover reinforcing plate 2 comprises a reinforcing plate body 21 and a connecting claw 22 arranged on the reinforcing plate body 21; the connecting claw 22 is used to connect with the rear windshield mounting surface 14, which can ensure that the engine cover reinforcing plate 2 is stably placed on the window frame of the back door inner panel 1, so that the engine cover reinforcing plate can support the excess material inside the window frame of the back door inner panel, and when the back door inner panel is processed, the stress state of the window frame corner position is in a bidirectional stretching state, avoiding the situation that the back door inner panel window frame is cracked due to unidirectional stretching at this position. Wherein, an extension surface is arranged on the window frame of the back door inner panel 1 to provide a lap joint position for the connecting claw 22, thereby facilitating the installation of the engine cover reinforcing plate 2.

[0047] In an example, a suction cup position is arranged on the reinforcing plate body 21. During stamping production, the suction cup is installed on the feeding manipulator, and the suction cup is matched with the suction cup position, so that the feeding manipulator can grab the engine cover reinforcing plate 2 through the suction cup to realize the handling of the part.

[0048] In an embodiment, referring to Figure 4 and Figure 5 , the connecting claw 22 comprises a first claw 221 and a second claw 222; the first claw 221 is arranged on the first side of the reinforcing plate body 21 and is used to connect with the first end of the rear windshield mounting surface 14; the second claw 222 is arranged on the second side of the reinforcing plate body 21 and is used to connect with the second end of the rear windshield mounting surface 14.

[0049] As an example, the connecting claw 22 includes a first claw 221 and a second claw 222; during installation, the first claw 221 is arranged on the first side of the reinforcing plate body 21 and used for being connected with the first end of the rear windshield mounting surface 14, and specifically, the first claw 221 is overlapped on the extension surface of the first end of the rear windshield mounting surface 14; the second claw 222 is arranged on the second side of the reinforcing plate body 21 and used for being connected with the second end of the rear windshield mounting surface 14, and specifically, the second claw 222 is overlapped on the extension surface of the second end of the rear windshield mounting surface 14; in this way, the hood reinforcing plate 2 is placed in the window frame of the hatchback door inner panel 1, the connecting claw 22 is unfolded and connected with the rear windshield mounting surface 14, and after adding other process supplementary surfaces, the hood reinforcing plate 2 and the hatchback door inner panel 1 together form a stamping and drawing process (OP10) die surface; the hood reinforcing plate 2 and the hatchback door inner panel 1 are stamped and formed in the same set of processing dies, so as to realize the reuse of the waste material cavity, reduce the number of die sets, improve the material utilization rate, reduce the uncoiling time of the stamping sheet material, save the die development cost, improve the production efficiency, improve the material utilization rate, and realize the cost reduction of the whole vehicle design.

[0050] The embodiment of the utility model discloses a kind of processing dies, refer to Figure 6 , for processing hatchback door assembly, including upper die 3, lower punch 4, edge ring 5, middle piercing cutter 6 and two side piercing cutters 7;Upper die 3 is arranged on the press slide, lower punch 4 is oppositely arranged with upper die 3, edge ring 5 is arranged between upper die 3 and lower punch 4, for placing hatchback door assembly;Middle piercing cutter 6 and two side piercing cutters 7 are interval arranged on upper die 3;Lower punch 4 is equipped with recess;Recess is oppositely arranged with the piercing cutter on upper die 3.

[0051] As an example, the processing die is used for processing hatchback door inner panel die set module, specifically including upper die 3, lower punch 4, edge ring 5, middle piercing cutter 6 and two side piercing cutters 7;When using, upper die 3 is arranged on the press slide, lower punch 4 is oppositely arranged with upper die 3, for stamping hatchback door assembly;Edge ring 5 is arranged between upper die 3 and lower punch 4, for placing hatchback door inner panel and hood reinforcing plate. Middle piercing cutter 6 and two side piercing cutters 7 are interval arranged on upper die 3;Lower punch 4 is equipped with recess, recess is oppositely arranged with the piercing cutter on upper die 3, specifically recess includes first recess and second recess, first recess is oppositely arranged with middle piercing cutter 6, second recess is oppositely arranged with two side piercing cutters 7, so that middle piercing cutter 6 and two side piercing cutters 7 work provide orientation, avoid piercing cutter damage due to misalignment.

[0052] Specific working process is as follows:

[0053] In the design of the sleeve-punching-drawing stamping process, the engine cover reinforcing plate 2 is installed in the window frame of the hatchback door inner plate 1, and some concave shapes are added in the middle to absorb the excess material, so that the part forming is more sufficient. When the mold is opened, the upper concave die 3 is suspended on the press slide, the two side piercing knives 7 and the middle piercing knife 6 are fixed on the upper concave die 3 through bolts and positioning pins, and the lower convex die 4 is provided with a groove at the position corresponding to the piercing knife on the upper concave die 3. During work, the blank material (hereinafter referred to as sheet material) is placed on the blank holder 5. First, the upper concave die 3 is controlled to descend and interact with the blank holder 5 to tighten the sheet material, and then the lower convex die 4 is contacted to slowly form the part. Among them, when the stamping forming distance is 25mm to the bottom, the two side piercing knives 7 start to work, pierce the part, at the same time, the supporting material step structure 13 of the window frame corner of the hatchback door inner plate 1 starts to support the material, improves the stress state of the sheet material at the window frame position, so that the window frame corner position is not broken when forming to the bottom; when the stamping forming distance is 5mm to the bottom, the middle piercing knife 6 starts to work, and the middle area flow is improved.

[0054] In an embodiment, referring to Figure 6 The length of the two side piercing knives 7 is 24-26mm larger than the thickness of the profile surface of the hatchback door assembly, and the length of the middle piercing knife 6 is 4-6mm larger than the thickness of the profile surface of the hatchback door inner plate and the engine cover reinforcing plate.

[0055] As an example, the length of the two side piercing knives 7 is 24-26mm larger than the thickness of the profile surface of the hatchback door inner plate and the engine cover reinforcing plate, and specifically, the length of the two side piercing knives 7 is 25mm larger than the thickness of the profile surface of the hatchback door inner plate and the engine cover reinforcing plate; the length of the middle piercing knife 6 is 4-6mm larger than the thickness of the profile surface of the hatchback door inner plate and the engine cover reinforcing plate, and specifically, the length of the middle piercing knife 6 is 5mm larger than the thickness of the profile surface of the hatchback door inner plate and the engine cover reinforcing plate. In this way, the two side piercing knives 7 and the middle piercing knife 6 start to work in turn as needed, which can avoid the rupture of the window frame corner position of the hatchback door inner plate 1 when forming to the bottom, and ensure that the hatchback door inner plate sleeve module is better formed.

[0056] The utility model embodiment provides a kind of automobile, including hatchback door inner plate sleeve module.

[0057] The hatchback door inner plate sleeve module includes hatchback door inner plate 1 and engine cover reinforcing plate 2, and the window frame of the hatchback door inner plate 1 includes interior trim mounting surface 11, interior trim mounting surface stripping side wall 12 and rear windshield mounting surface 14, and the interior trim mounting surface 11 and the interior trim mounting surface stripping side wall 12 are matched to be used for installing interior trim.

[0058] The engine cover reinforcing plate 2 supports the engine cover outer plate and prevents the engine cover outer plate from deforming. When the stamping is performed, the engine cover reinforcing plate 2 is arranged on the rear windshield mounting surface 14. In this way, the support strength of the window frame of the hatchback door inner plate 1 can be improved by the engine cover reinforcing plate 2. When the hatchback door inner plate 1 is processed, the engine cover reinforcing plate 2 can support the internal excess material of the window frame of the hatchback door inner plate 1, so that the stress state of the window frame corner position is in a bidirectional stretching state, and the situation that the hatchback door inner plate window frame is cracked due to the unidirectional stretching at the position is avoided. In addition, the engine cover reinforcing plate 2 and the hatchback door inner plate 1 are stamped and formed in the same set of processing dies, so that the waste material cavity is reused, the number of die sets is reduced, the material utilization rate is improved, the stamping plate uncoiling time is reduced, the die development cost is saved, the production efficiency is improved, the material utilization rate is improved, and the vehicle design cost is reduced.

[0059] Compared with the conventional scheme, in the example, the material supporting step structure 13 is arranged on the inner trim mounting surface parting side wall 12, the material supporting step structure 13 is located at the window frame corner of the hatchback door inner plate 1, and the material supporting step structure 13 is a two-step structure. When the hatchback door inner plate 1 is stamped and formed, the material supporting step structure 13 plays a material supporting role, improves the plate material stress state at the window frame position, and prevents the window frame corner position from being broken when the stamping and forming are completed. Therefore, when the hatchback door inner plate 1 is processed, a piercing knife does not need to be arranged at the diagonal line position of the window frame corner of the hatchback door inner plate 1 on the processing die, the window frame cracking problem is solved, the number of die sets is reduced, the die development cost is saved, the safety production of the hatchback door inner plate 1 is ensured, the vehicle development cost is reduced, and the production efficiency is improved.

[0060] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones. Such modifications or replacements do not change the essence of the corresponding technical solutions, and should be included in the protection scope of the present application.

Claims

1. A back door inner panel insert mold member characterized by, The back door inner plate and the engine cover reinforcing plate are included; the window frame of the back door inner plate includes an interior installation surface, an interior installation surface draw-out side wall, and a rear windshield installation surface, the interior installation surface and the interior installation surface draw-out side wall are matched for installing the interior; the engine cover reinforcing plate is arranged on the rear windshield installation surface; a material supporting step structure is arranged on the interior installation surface draw-out side wall, and the material supporting step structure is located at the corner of the window frame of the back door inner plate.

2. The hatchback inner panel overmolded module of claim 1, wherein, The step depth of the material supporting step structure is less than or equal to 20 mm; The included angle between the plane where the interior installation surface draw-out side wall of the back door inner plate is located and the interior installation surface of the back door inner plate is greater than or equal to 20°; The included angle between the plane where the step side wall of the material supporting step structure is located and the plane where the interior installation surface draw-out side wall of the back door inner plate is located is less than or equal to 45°.

3. The liftgate inner panel overmold of Claim 1, wherein, The chamfer between the interior installation surface draw-out side wall of the back door inner plate and the step side wall of the material supporting step structure is greater than or equal to 8 mm, and the inner chamfer of the step of the material supporting step structure is greater than or equal to 8 mm; The chamfer between the step side wall of the material supporting step structure and the rear windshield installation surface of the back door inner plate is greater than or equal to 15 mm.

4. The liftgate inner panel overmold of claim 1, wherein, The plane where the upper wall of the step of the material supporting step structure is located is parallel to the plane where the interior installation surface draw-out side wall of the back door inner plate is located.

5. The liftgate inner panel overmold of Claim 1, wherein, The engine cover reinforcing plate includes a reinforcing plate body and a connecting claw arranged on the reinforcing plate body; the connecting claw is used for being connected with the rear windshield installation surface.

6. The liftgate inner panel overmold of Claim 5, wherein, The connecting claw of the engine cover reinforcing plate includes a first claw and a second claw; The first claw is arranged on the first side of the reinforcing plate body and is used for being connected with the first end of the rear windshield installation surface; The second claw is arranged on the second side of the reinforcing plate body and is used for being connected with the second end of the rear windshield installation surface.

7. A processing mold characterized by comprising: The back door inner plate sleeve die assembly is used for processing the back door inner plate, and includes an upper female die, a lower male die, a pressure pad ring, a middle piercing cutter, and two side piercing cutters. The upper female die is arranged on a press slider, the lower male die is arranged opposite to the upper female die, and the pressure pad ring is arranged between the upper female die and the lower male die and is used for placing the back door inner plate sleeve die assembly. The middle piercing cutter and the two side piercing cutters are arranged on the upper female die in a spaced manner; the lower male die is provided with a groove, and the groove is arranged opposite to the piercing cutters on the upper female die.

8. The processing mold of claim 7, wherein The length of the two side piercing cutters is greater than the profile thickness of the back door inner plate and the engine cover reinforcing plate by 24-26 mm, and the length of the middle piercing cutter is greater than the profile thickness of the back door inner plate and the engine cover reinforcing plate by 4-6 mm.

9. An automobile characterized by comprising: The back door inner plate sleeve die assembly is included.

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