A process and processing equipment for the joint production of automobile tailgate outer panel and hood reinforcement panel

Abstract

The application provides a co-taking process and processing equipment for an automobile tail door outer plate and a hood reinforcing plate, wherein the co-taking process comprises the following steps: S1, drawing and forming a plate part to obtain a hood reinforcing plate subpart and a tail door outer plate parent part connected with each other, wherein the hood reinforcing plate subpart is drawn and formed in the window frame range of the tail door outer plate parent part; S2, trimming and punching the hood reinforcing plate subpart and the tail door outer plate parent part connected with each other; S3, flanging and shaping the hood reinforcing plate subpart and the tail door outer plate parent part, and stamping and separating the hood reinforcing plate subpart and the tail door outer plate parent part connected with each other; and S4, shaping the welding leg of the hood reinforcing plate subpart upwards, co-taking the hood reinforcing plate subpart and the tail door outer plate parent part, and completing manufacturing. The application can realize integrated forming of the tail door outer plate, co-taking of the tail door outer plate parent part and the hood reinforcing plate subpart, simultaneously make the welding point of the subpart claw upwards, and ensure stable quality and mass production of the tail door outer plate and the hood reinforcing plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stamping forming process, and more particularly to a co-taking process and processing equipment for an automobile tail door outer plate and an engine cover reinforcing plate. BACKGROUND

[0002] Currently, there are two kinds of stamping die process for the automobile tail door outer plate: the first kind of stamping die process divides the tail door outer plate into an upper part and a lower part, which are separately formed by respective dies, and then welded together in a welding workshop; the second kind of stamping die process integrates the upper part and the lower part of the tail door outer plate, and forms the tail door outer plate as a whole. However, the deep-drawing forming depth of this stamping method is deep, the upper part of the tail door outer plate generally reaches 170 mm, the stamping forming angle adjustment is limited, and forming defects such as opening cracks are prone to occur, which requires a long time to trial-produce successfully. Moreover, there is no co-taking process with the engine cover reinforcing plate, and the engine cover reinforcing plate needs to be purchased additionally, which increases the overall cost of the vehicle model.

[0003] Among them, since the tail door outer plate upper part (master part) and the engine cover reinforcing plate (sub part) are co-taken in the same set of stamping dies, the stamping direction of the sub part is consistent with the master part, that is, the welding point of the claw of the engine cover reinforcing plate sub part is also downward after forming. After the sub part is automatically placed on the belt conveyor by the mechanical hand, the downward protruding sub part welding leg is prone to deformation or damage, and the sub part is weak in rigidity. The mechanical hand at the end of the production line is prone to deformation when it is automatically placed on the belt conveyor, which greatly affects the precision of the sub part, thereby affecting the welding assembly quality of the engine cover assembly. At present, there is no good solution. SUMMARY

[0004] The present application aims to overcome the shortcomings of the prior art that the master part of the automobile tail door outer plate and the sub part of the engine cover reinforcing plate are co-taken in the same set of devices, and the welding leg point of the engine cover reinforcing plate sub part is downward, which leads to easy deformation during transportation. The present application provides a co-taking process and processing equipment for an automobile tail door outer plate and an engine cover reinforcing plate. The present application can realize the integrated forming of the tail door outer plate and the co-taking of the master part of the tail door outer plate and the sub part of the engine cover reinforcing plate, and can make the welding point of the claw of the sub part upward. The present application not only reduces the cost of die manufacturing and the cost of part procurement, but also ensures the stable mass production of the quality of the tail door outer plate and the engine cover reinforcing plate.

[0005] To solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0006] A co-taking process for an automobile tail door outer plate and an engine cover reinforcing plate, specifically comprising the following steps:

[0007] S1: drawing and forming the plate part to obtain an engine cover reinforcing plate sub part and a tail door outer plate master part connected to each other, the engine cover reinforcing plate sub part being drawn and formed within the window frame range of the tail door outer plate master part;

[0008] S2: trimming and punching the mutually connected hood reinforcement panel sub-piece and tailgate outer panel mother piece;

[0009] S3: flanging and shaping the hood reinforcement panel sub-piece and tailgate outer panel mother piece, and stamping the mutually connected hood reinforcement panel sub-piece and tailgate outer panel mother piece apart;

[0010] S4: shaping the welding leg of the hood reinforcement panel sub-piece upward, and taking out the hood reinforcement panel sub-piece and tailgate outer panel mother piece together, to complete the manufacturing.

[0011] It should be noted that the draw forming, trimming and punching, flanging and shaping, and welding leg shaping can all be achieved by using a stamping die. The plate piece can be drawn formed by using a stamping forming die to obtain the mutually connected hood reinforcement panel sub-piece and tailgate outer panel mother piece. The mutually connected hood reinforcement panel sub-piece and tailgate outer panel mother piece are transferred to a trimming and punching die, and the trimming and punching die is used to trim and punch the mutually connected hood reinforcement panel sub-piece and tailgate outer panel mother piece. The hood reinforcement panel sub-piece and tailgate outer panel mother piece after trimming and punching are transferred to a flanging and shaping die, and the flanging and shaping die is used to flange and shape the hood reinforcement panel sub-piece and tailgate outer panel mother piece, and the mutually connected hood reinforcement panel sub-piece and tailgate outer panel mother piece are stamped apart. The separated hood reinforcement panel sub-piece and tailgate outer panel mother piece are transferred to a welding leg shaping die, and the welding leg shaping die is used to shape the welding leg of the hood reinforcement panel sub-piece upward.

[0012] The present application adopts a nested processing mode to co-take the hood reinforcement panel sub-piece and the tailgate outer panel mother piece. The tailgate outer panel and the hood reinforcement panel are combined as a matched combination of a mother piece and a sub-piece for co-taking of one mold and two pieces, effectively saving the overall volume of the co-taking mold of one mold and two pieces, and saving the cost of outsourcing the hood reinforcement panel, reducing production cost, and effectively and reasonably utilizing mold space. The draw forming die, trimming and punching die, flanging and shaping die, and welding leg shaping die are all designed in a nested mode, and draw forming, trimming and punching, and flanging and shaping are sequentially performed according to the process, reducing the overall production process mold volume and production cost. It is a more practical design way. Finally, the welding leg point of the hood reinforcement panel sub-piece is shaped upward by the welding leg shaping die. The welding leg is not easy to damage and deform during the co-taking and transfer process, the quality assurance of the sub-piece is better, and the efficiency of the subsequent sub-piece in the welding process can be optimized.

[0013] Further, the stamping included angle of the plate drawing forming is 20-30 degrees. The best stamping forming angle of the parent piece and the sub-piece is adjusted through CAE technology analysis and multiple rounds of verification. The plate is adjusted to contact stamping with a certain angle with the stamping surface, and the plate can gradually deform and draw in the stamping drawing process from the side first contacted. Compared with the vertical downward pressure, the plate surface deforms at multiple places at the same time, the internal stress of the plate is chaotic, and the force transmission is uneven, which is extremely easy to crack or have dark lines. The stamping included angle of the plate and the stamping surface of the stamping forming die is 20-30 degrees, which can reduce the forming defects such as dark cracks and the like caused by too large drawing forming depth.

[0014] Further, the stamping surface of the tail door outer plate parent piece in step S1 is the modeling front surface, and the tail door outer plate parent piece is bent in the middle and drawn downward on both sides in the stamping of the stamping forming die. The upper and lower parts of the tail door outer plate are integrally formed, and the upper and lower parts of the tail door outer plate have a V-shaped turning line. The V-shaped outer part of the tail door outer plate modeling front surface is deep, and the upper and lower parts of the tail door outer plate are integrally formed. Compared with the pressure mode of the V-shaped inner part of the tail door outer plate modeling back surface, the upper die extrudes the suspended plate, and the plate drawing crack is easy to appear. The stamping surface of the tail door outer plate parent piece is the modeling front surface, so that the plate is drawn downward when the upper and lower dies are closed, and the plate has more fulcrums when the upper die is pressed down. The stress of the plate in the drawing process can be more balanced and gentle, and the drawing effect is better.

[0015] Further, the stamping surface of the tail door outer plate parent piece in step S1 is the modeling front surface, and the tail door outer plate parent piece is bent in the middle and drawn downward on both sides in the stamping of the stamping forming die. The upper and lower parts of the tail door outer plate are integrally formed, and the upper and lower parts of the tail door outer plate have a V-shaped turning line. The V-shaped outer part of the tail door outer plate modeling front surface is deep, and the upper and lower parts of the tail door outer plate are integrally formed. Compared with the pressure mode of the V-shaped inner part of the tail door outer plate modeling back surface, the upper die extrudes the suspended plate, and the plate drawing crack is easy to appear. The stamping surface of the tail door outer plate parent piece is the modeling front surface, so that the plate is drawn downward when the upper and lower dies are closed, and the plate has more fulcrums when the upper die is pressed down. The stress of the plate in the drawing process can be more balanced and gentle, and the drawing effect is better.

[0016] Further, the welding leg position of the sub-piece of the hood reinforcement plate is arranged close to the outside of the window frame of the tail door outer plate parent piece. Since the drawing depth of the welding leg of the sub-piece of the hood reinforcement plate is generally larger than that of the body of the sub-piece of the hood reinforcement plate, in order to meet the drawing depth required by the welding leg of the sub-piece of the hood reinforcement plate, since the drawing depth of the outside of the window frame of the tail door outer plate parent piece is large, arranging the position of the welding leg close to the outside of the window frame of the tail door outer plate parent piece can meet the requirement of most welding drawing depths.

[0017] Further, the trimming in step S2 includes straight trimming and inclined trimming, and the punching includes straight punching and inclined punching.

[0018] Furthermore, in step S3, the flanging includes straight flanging and oblique flanging, and the shaping includes straight shaping and oblique shaping.

[0019] It should be noted that, for the tailgate outer panel mother component, generally, straight trimming, straight shaping and straight flanging are performed on the inner and outer sides of the glass window of the tailgate outer panel mother component, oblique trimming and oblique flanging are performed on the bumper side and roof side of the tailgate outer panel mother component, straight punching and oblique punching are performed on the bumper side, glass window, roof side and license plate light, and the punching installation is carried out according to requirements; for the hood reinforcement plate component, generally, straight trimming and straight shaping are performed on the peripheral side and inner side of the hood reinforcement plate component.

[0020] A processing equipment for jointly taking the outer panel of an automobile tailgate and the hood reinforcement plate is used to realize the process of jointly taking the outer panel of the tailgate and the hood reinforcement plate as described above, including a stamping die, a trimming and punching die, a flanging and shaping die and a weld foot shaping die arranged in sequence, a robot arranged on one side and used for loading and transferring workpieces, and a control system respectively connected to the stamping die, the trimming and punching die, the flanging and shaping die, the weld foot shaping die and the robot.

[0021] Furthermore, the stamping die includes a drawing lower die and a drawing upper die, on which a drawing core and a drawing pressing block for forming a target shape are fixed respectively. The target shape is an integrated shape in which the hood reinforcement plate component is located within the window frame range of the tailgate outer panel mother component.

[0022] It should be noted that the stamping method of the trimming and punching die and the flanging shaping die is the existing technology, and since the hood reinforcement plate component is located within the window frame range of the tailgate outer panel mother component after drawing and forming by the stamping die and is in a state of interconnection, the hood reinforcement plate component stamping die used for trimming, punching and flanging shaping in the trimming and punching die and the flanging shaping die is also located within the window frame range of the tailgate outer panel mother component stamping die.

[0023] Further, the welding leg shaping die comprises a shaping lower die and a shaping upper die, the shaping lower die is provided with a fixedly connected tail door outer plate pad, a hood cover reinforcing plate pad located in the window frame range of the tail door outer plate pad and capable of reciprocating relative to the tail door outer plate pad, and a shaping insert fixed at the welding leg position of the hood cover reinforcing plate, and the hood cover reinforcing plate pad is connected with the shaping lower die through a nitrogen gas cylinder; the shaping upper die is provided with a hood cover reinforcing plate pressing block matched with the hood cover reinforcing plate pad and provided with an empty slot at the welding leg position. The hood cover reinforcing plate pad is designed in the form of movable connection, and during the die shaping and clamping process, the hood cover reinforcing plate pad moves downward relative to the shaping insert under the pushing of the hood cover reinforcing plate pressing block, at this time, the welding leg of the sub-assembly clamped between the shaping insert and the hood cover reinforcing plate pressing block will be stretched upwardly along with the downward movement of the hood cover reinforcing plate pad, and after the hood cover reinforcing plate pad moves downward to a certain depth, the point of the welding leg of the sub-assembly after the die shaping and clamping is upward; after the upper die and the lower die are separated from each other, the hood cover reinforcing plate pad is reset to wait for the shaping operation of the next workpiece. The point of the welding leg of the hood cover reinforcing plate after the die shaping and clamping is upward, and when the robot of the production line automatically places the obtained female part and the sub-assembly on the belt conveyor, the welding leg of the hood cover reinforcing plate will not be deformed due to contact and collision with the bearing table, the quality assurance of the sub-assembly of the hood cover reinforcing plate is better, and the efficiency of the subsequent welding process of the sub-assembly of the hood cover reinforcing plate can be optimized.

[0024] Compared with the prior art, the beneficial effects of the present application are:

[0025] The present application adopts a nested processing mode to process the sub-assembly of the hood cover reinforcing plate and the female part of the tail door outer plate, the tail door outer plate and the hood cover reinforcing plate are matched and combined as a one-mold two-piece co-taking female part and sub-assembly, effectively saving the overall volume of the one-mold two-piece co-taking die, and saving the cost of outsourcing the hood cover reinforcing plate, reducing the production cost, effectively and reasonably utilizing the die space, designing the drawing forming die, the trimming and punching die, the flanging and shaping die and the welding leg shaping die as a nested mode, sequentially performing drawing forming, trimming and punching and flanging and shaping, reducing the overall production process die volume and production cost, which is a more practical design way, finally shaping the welding leg point of the sub-assembly of the hood cover reinforcing plate upward through the welding leg shaping die, and the welding leg is not easy to be damaged and deformed after co-taking and during the transportation process, the quality assurance of the sub-assembly is better, and the efficiency of the subsequent welding process of the sub-assembly can be optimized. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The step flow chart of the embodiment 1 of the present application is shown in the figure;

[0027] Figure 2 The process die schematic diagram of the embodiment 1 of the present application is shown in the figure;

[0028] Figure 3Schematic diagram of the drawing position of the welding foot of the hood reinforcement plate in Example 2 of the present invention;

[0029] Figure 4 Schematic diagram of the stamping angle of the tail door outer panel in Example 2 of the present invention;

[0030] Figure 5 This is a schematic diagram of the welding foot shaping process of the hood reinforcement plate in Example 2 of the present invention. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting this patent. To better illustrate the embodiments of the present invention, some components in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the dimensions of actual products. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0032] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] Example 1

[0034] like Figure 1 and Figure 2 As shown, a process for jointly taking the outer panel of the automobile tailgate and the hood reinforcement plate includes the following steps:

[0035] S1: Using the stamping die OP01, the plate is drawn to obtain a hood reinforcement plate component and a tailgate outer panel mother component that are connected to each other. The hood reinforcement plate component is drawn to form the window frame of the tailgate outer panel mother component.

[0036] S2: The connected hood reinforcement plate and tailgate outer panel mother component are transferred to the trimming and punching die OP02, and the trimming and punching die OP02 is used to trim and punch the connected hood reinforcement plate and tailgate outer panel mother component;

[0037] S3: The trimming and punching of the roof reinforcement sub-piece and the tailgate outer plate mother piece are transferred to the flanging and shaping die OP03, the flanging and shaping die OP03 is used to flange and shape the roof reinforcement sub-piece and the tailgate outer plate mother piece, and the roof reinforcement sub-piece and the tailgate outer plate mother piece connected with each other are separated by stamping;

[0038] S4: The separated roof reinforcement sub-piece and the tailgate outer plate mother piece are transferred to the welding leg shaping die OP04, the welding leg shaping die OP04 is used to shape the welding leg of the roof reinforcement sub-piece upward, and the roof reinforcement sub-piece and the tailgate outer plate mother piece are taken out together, and the manufacturing is completed.

[0039] It should be noted that the present embodiment adopts a nested processing mode to co-take the roof reinforcement sub-piece and the tailgate outer plate mother piece, the tailgate outer plate and the roof reinforcement plate are matched and combined as a mother piece and a sub-piece of a one-mold two-piece co-take, which effectively saves the overall volume of the one-mold two-piece co-take die, saves the cost of outsourcing the roof reinforcement plate, reduces the production cost, effectively and reasonably utilizes the die space, and designs the drawing forming die, the trimming and punching die, the flanging and shaping die and the welding leg shaping die as a nested mode, sequentially performs drawing forming, trimming and punching and flanging and shaping, reduces the overall production process die volume and production cost, is a more practical design way, and finally shapes the welding leg point of the roof reinforcement sub-piece upward by the welding leg shaping die, so that the welding leg is not easy to be damaged and deformed during co-taking and transportation, the quality assurance of the sub-piece is better, and the efficiency of the subsequent sub-piece in the welding process can be optimized.

[0040] Embodiment 2

[0041] The present embodiment is similar to embodiment 1, and the difference lies in that:

[0042] As shown in Figure 3 and Figure 4 , the stamping included angle of the plate drawing forming is 25°. The present application adjusts the best stamping forming angle of the mother piece and the sub-piece through CAE technology analysis and multiple rounds of verification. The present application adjusts the initial fixed position of the plate to a certain angle of contact with the stamping surface. In the stamping drawing process, the plate can gradually deform and draw from the side that first contacts. Compared with vertical downward pressing, the plate surface deforms at multiple places at the same time, the internal force of the plate is chaotic, and the force transmission is uneven, which is extremely easy to crack or have dark lines. The stamping included angle of the plate and the stamping surface of the stamping forming die in the present application is 25°, which can reduce the forming defects such as cracking and dark lines caused by too large drawing forming depth.

[0043] As shown in Figure 3As shown, the stamping surface of the tail door outer plate blank in step S1 is the modeling front surface, and the tail door outer plate blank is bent in the middle and the left and right sides are drawn down in the stamping of the stamping forming die. The upper and lower parts of the tail door outer plate are integrally formed, and the upper and lower parts of the tail door outer plate have a V-shaped transition line. The tail door outer plate modeling front surface is V-shaped outside, and the longitudinal depth between the two ends and the transition line is deep. Compared with the tail door outer plate modeling back surface, that is, the V-shaped inside under pressure, the upper die extrudes the suspended plate, and the plate is prone to draw cracking. The tail door outer plate blank of the present application has a stamping surface of the modeling front surface, so that the plate is drawn down when the upper and lower dies are closed, and the plate has more support points under pressure when the upper die is pressed down. The stress of the plate during the drawing process is more balanced and gentle, and the drawing effect is better.

[0044] As shown in Figure 3 , the stamping surface of the hood reinforcement plate sub-piece in step S1 is the modeling back surface, and the hood reinforcement plate sub-piece is integrally drawn with the window frame of the tail door outer plate blank. The molding surface of the hood reinforcement plate sub-piece is located in the same plane as the molding surface of the window frame of the tail door outer plate blank. The weld leg position of the hood reinforcement plate sub-piece generally extends toward the back. In order to shape the weld leg position of the hood reinforcement plate sub-piece upward in the subsequent process, and the drawing longitudinal depth of the hood plate reinforcement does not change much, the stamping surface of the hood reinforcement plate sub-piece can be set as the modeling back surface.

[0045] As shown in Figure 3 , the weld leg position of the hood reinforcement plate sub-piece is located near the outside of the window frame of the tail door outer plate blank. Since the drawing depth of the weld leg of the hood reinforcement plate sub-piece is generally greater than the drawing depth of the body of the hood reinforcement plate sub-piece, in order to meet the drawing depth required by the weld leg of the hood reinforcement plate sub-piece, since the drawing depth of the outside of the window frame of the tail door outer plate blank is large, setting the position of the weld leg near the outside of the window frame of the tail door outer plate blank can meet the requirements of most welding drawing depths.

[0046] In this embodiment, the trimming in step S2 includes positive trimming and inclined trimming, and the punching includes positive punching and inclined punching.

[0047] In this embodiment, the flanging in step S3 includes positive flanging and inclined flanging, and the shaping includes positive shaping and inclined shaping.

[0048] It should be noted that for the tail door outer plate blank, positive trimming, positive shaping and positive flanging are generally performed on the inside and outside of the glass window of the tail door outer plate blank, inclined trimming and inclined flanging are performed on the bumper side and the roof side of the tail door outer plate blank, and positive punching and inclined punching are performed on the bumper side, the glass window, the roof side and the license plate lamp. The punching installation is performed according to the requirements; for the hood reinforcement plate sub-piece, positive trimming and positive shaping are generally performed on the side and inside of the hood reinforcement plate sub-piece.

[0049] The other structures and principles of this embodiment are the same as those of embodiment 1.

[0050] Example 3

[0051] A processing equipment for taking the outer panel of the tailgate and the hood reinforcement plate of the automobile is used to realize the process of taking the outer panel of the tailgate and the hood reinforcement plate of the automobile as described in the above embodiment. Figure 2 As shown, it includes a stamping die OP01, a trimming and punching die OP02, a flanging and shaping die OP03 and a weld leg shaping die OP04 arranged in sequence, a robot arranged on one side and used for loading and transferring workpieces, and a control system respectively connecting the stamping die OP01, the trimming and punching die OP02, the flanging and shaping die OP03, the weld leg shaping die OP04 and the robot.

[0052] Furthermore, the stamping die OP01 includes a drawing lower die and a drawing upper die, on which a drawing core and a drawing pressing block for forming a target shape are fixed respectively. The target shape is an integrated shape in which the hood reinforcement plate component is located within the window frame range of the tailgate outer panel mother component.

[0053] It should be noted that the stamping method of the trimming and punching die OP02 and the flanging and shaping die OP03 is the existing technology, and since the hood reinforcement plate component is located within the window frame range of the tailgate outer panel mother component after the stamping and forming die OP01 is drawn and formed and is in a state of interconnection, the hood reinforcement plate component stamping die used for trimming, punching and flanging in the trimming and punching die OP02 and the flanging and shaping die OP03 is also located within the window frame range of the tailgate outer panel mother component stamping die.

[0054] In this embodiment, the weld leg shaping mold OP04 includes a shaping lower mold and a shaping upper mold. The shaping lower mold is provided with a fixedly connected tailgate outer panel pad, a hood reinforcement plate pad located within the window frame of the tailgate outer panel pad and capable of relatively reciprocating movement, and a shaping insert fixed to the hood reinforcement plate weld leg position. The hood reinforcement plate pad and the shaping lower mold are connected via a nitrogen cylinder; the shaping upper mold is provided with a hood reinforcement plate pressing block that cooperates with the hood reinforcement plate pad and has an air avoidance groove at the weld leg position. Figure 5As shown, the embodiment designs the cover reinforcing plate pad block in a movable connection mode. In the mold shaping and clamping process, the cover reinforcing plate pad block moves downward relative to the shaping insert under the pushing of the cover reinforcing plate pressing block. At this time, the sub-piece welding leg clamped between the shaping insert and the cover reinforcing plate pressing block will be stretched and deformed upward with the downward movement of the cover reinforcing plate pad block. After the cover reinforcing plate pad block moves downward to a certain depth, the point of the sub-piece welding leg after the shaping and clamping in the mold is upward. After the upper mold and the lower mold are separated from each other, the cover reinforcing plate pad block is reset to wait for the shaping operation of the next workpiece. The application realizes that the point of the cover reinforcing plate welding leg after the shaping and clamping in the mold is upward. When the robot of the production line automatically puts the mother piece and the sub-piece obtained together on the belt conveyor, the cover reinforcing plate welding leg will not be deformed due to contact and collision with the bearing table. The quality assurance of the cover reinforcing plate sub-piece is better, and the efficiency of the subsequent cover reinforcing plate sub-piece in the welding process can be optimized.

[0055] Obviously, the above embodiments of the application are merely illustrative and not intended to limit the embodiments of the application. Based on the above description, those skilled in the art can make other different forms of changes or modifications. All the embodiments do not need to be exhausted here. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the claims of the application.

Claims

1. A process for producing a car tailgate outer panel and a hood reinforcement panel, characterized in that: The specific steps include: S1: Drawing the plate to obtain a hood reinforcement plate member and a tailgate outer panel mother member that are connected to each other, wherein the hood reinforcement plate member is drawn within the window frame of the tailgate outer panel mother member; S2: trimming and punching the mutually connected hood reinforcement plate component and tailgate outer panel mother component; S3: Flanging and shaping the hood reinforcement plate component and the tailgate outer panel mother component, and stamping and separating the hood reinforcement plate component and the tailgate outer panel mother component that are connected to each other; S4: Shape the welding feet of the hood reinforcement plate upwards, remove the hood reinforcement plate and the tailgate outer panel mother part, and complete the manufacturing.

2. The process for co-extracting the outer panel of the automobile tailgate and the hood reinforcement plate according to claim 1, characterized in that: The punching angle of the plate drawing forming is 20°~30°.

3. The process for co-extracting the outer panel of the automobile tailgate and the hood reinforcement plate according to claim 2, characterized in that: In step S1 , the stamped surface of the tailgate outer panel mother component is the front side of the shape. The tailgate outer panel mother component is bent in the middle under the stamping of the stamping die and its left and right sides are drawn downward.

4. The process for co-extracting the outer panel of the automobile tailgate and the hood reinforcement plate according to claim 2, characterized in that: In step S1, the stamped surface of the hood reinforcement plate component is the back side of the molding. The hood reinforcement plate component is located within the window frame range of the tailgate outer panel mother component and is drawn integrally therewith. The molding surface of the hood reinforcement plate component and the window frame molding surface of the tailgate outer panel mother component are located on the same plane.

5. The process for obtaining a tailgate outer panel and a hood reinforcement panel of an automobile according to claim 4, characterized in that: The welding foot position of the hood reinforcement plate sub-component is arranged close to the outer side of the window frame of the tailgate outer panel mother component.

6. The process for co-extracting the outer panel of the automobile tailgate and the hood reinforcement plate according to claim 1, characterized in that: The trimming in step S2 includes straight trimming and oblique trimming, and the punching includes straight punching and oblique punching.

7. The process for co-extracting the outer panel of the automobile tailgate and the hood reinforcement plate according to claim 1, characterized in that: The flanging in step S3 includes straight flanging and oblique flanging, and the shaping includes straight shaping and oblique shaping.

8. A processing equipment for the outer panel of the automobile tailgate and the hood reinforcement plate, characterized in that: It is used to realize the co-extraction process of the tailgate outer panel and the hood reinforcement plate as described in any one of claims 1 to 7, including a stamping mold, a trimming and punching mold, a flanging shaping mold and a weld foot shaping mold arranged in sequence, a robot arranged on one side and used for loading and transferring workpieces, and a control system respectively connected to the stamping mold, trimming and punching mold, flanging shaping mold, weld foot shaping mold and the robot.

9. The processing equipment for the automobile tailgate outer panel and the hood reinforcement plate according to claim 8 is characterized in that: The stamping die includes a drawing lower die and a drawing upper die, on which a drawing core and a drawing pressing block for forming a target shape are fixedly arranged respectively. The target shape is an integrated shape of the hood reinforcement plate component located within the window frame range of the tailgate outer panel mother component.

10. The processing equipment for the automobile tailgate outer panel and the hood reinforcement plate according to claim 8, characterized in that: The weld foot shaping mold includes a shaping lower mold and a shaping upper mold. The shaping lower mold is provided with a fixedly connected tailgate outer panel pad, a hood reinforcement plate pad located within the window frame range of the tailgate outer panel pad and capable of relatively reciprocating movement, and a shaping insert fixed to the hood reinforcement plate weld foot position. The hood reinforcement plate pad and the shaping lower mold are connected via a nitrogen cylinder; the shaping upper mold is provided with a hood reinforcement plate pressure block that cooperates with the hood reinforcement plate pad and has an air avoidance groove at the weld foot position.

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