A method and system for stamping an automotive glass moonroof roof header outer panel part

Abstract

The application relates to a stamping method and system for an automobile glass sunroof top cover outer plate part, which comprises the following steps: performing process compensation on a glass sunroof area of a top cover outer plate part semi-finished product, so that a first groove is formed on a glass sunroof mounting area of the glass sunroof area; performing local cutting on the glass sunroof mounting area, so as to form a material inflow space; performing shaping on the glass sunroof mounting area, and cutting off a glass sunroof waste recycling area of the glass sunroof area, and the glass sunroof mounting area is arranged outside the glass sunroof waste recycling area. Through process compensation on the glass sunroof mounting area and without any compensation on the glass sunroof waste recycling area, the application can realize the purpose of reasonably utilizing the excess material of the hollow area, effectively improving the material utilization rate of the part under the premise of ensuring the part forming sufficiency and the appearance quality of the part.

Description

Technical Field

[0001] This application relates to the field of automotive parts stamping technology, and in particular to a stamping method and system for automotive glass sunroof outer panel parts. Background Technology

[0002] The outer roof panel is an important exterior component of a car, primarily used to reflect the vehicle's styling, prevent injury to occupants from falling objects, provide a comfortable riding environment, offer rain protection, sealing, sound insulation, and dust protection, meet the installation requirements of sunroofs, antennas, windshields, trim strips, and roof racks, and protect occupants in the event of a collision. Depending on the vehicle configuration, various roof styles are available, including non-sunroof versions, panoramic sunroof versions, small sunroof versions, and sunroof-cover versions. This part has a complex structure and numerous connections with surrounding components, making it a crucial test of stamping process technology. For example, the outer roof panel of a certain car model is a component for a glass panoramic sunroof. The non-openable glass panoramic sunroof is installed in the recessed step area in the middle of the top. There are three holes on the step area for glass mounting and positioning. The two sides of the outer roof panel are spot-welded to the side panels. The structure is a shoulder structure with steps. The front part is the windshield overlap area. The rear exterior edge overlaps with the tailgate, which is an arc-shaped concave structure. It is a negative angle in the Z-axis view of the vehicle coordinate system. Other structural components are installed in the lower step area of ​​the rear. This part has a novel shape, a large panoramic sunroof area, and complex structures on the sides and rear, which is extremely challenging to manufacture.

[0003] The conventional stamping process for the outer panel of the roof mainly involves drawing, trimming and punching, flanging and shaping, wedge flanging, and wedge punching. This part is fitted with a large glass canopy, resulting in a large void area and potentially insufficient formability, leading to localized depressions. During process design, it is crucial to ensure adequate formability and prevent localized depressions. Typically, process compensation is performed in the central void area to create a specific shape and improve formability. After achieving the desired formability, excess material in the central void area is removed and flows into the waste disposal area through a waste channel. Because of the part's inherent porous and large void area, material utilization is low, hindering cost control.

[0004] For roof outer panel parts with a skylight or glass canopy in the middle, the existing process methods are generally as follows;

[0005] Option 1: The central void area undergoes process compensation; waste material is removed and not utilized. In this option, the glass canopy area's surface is redesigned during the drawing process, incorporating multiple long, rib-shaped sections to increase the part's forming adequacy. This process compensation in the subsequent process is completely removed. Because of the long, rib-shaped drawing compensation surface in this area, the removed waste material is unusable and must be treated as waste, flowing into the waste material channel.

[0006] Option 2: No process compensation is performed on the central void area; excess material in the central void area is collected and utilized. In this option, in order to utilize the excess material in the skylight area, the drawing process does not perform shape-based process compensation on the central void area. The surface is connected and transitioned relatively smoothly. The subsequent process cuts off and collects the flat excess material in the middle for use in other parts.

[0007] The above two stamping process solutions have the following drawbacks:

[0008] If Option 1 is adopted, the waste material in the middle glass canopy area of ​​the outer panel of the top cover is removed. Although this ensures the formability and appearance quality of the parts, the material utilization rate of the parts is low, the cost of the parts increases, and it is not conducive to the company's competitiveness.

[0009] If Option 2 is adopted, the sunroof area in the middle of the outer panel of the top cover will not undergo process compensation. While this ensures the integrity and usability of the intermediate waste material, it poses a disadvantage to the full forming of the part. In addition, the sunken steps in the sunroof area will be entirely formed in the subsequent process. The large material inflow in this area during the forming process will cause the appearance edges around the sunroof to slide downwards, creating a risk of local appearance defects. Also, because the material inflow is too large and uneven, it is easy to cause a large amount of springback in the subsequent process, which increases the difficulty of manufacturing and debugging the part and poses a certain risk of delaying the manufacturing cycle.

[0010] Therefore, how to make reasonable use of excess material in the cavity area while ensuring the formability and appearance quality of the parts, and effectively improve the material utilization rate of the parts, has become a key test of the stamping process level. Summary of the Invention

[0011] This application provides a stamping method and system for automotive glass sunroof outer panel parts, which can make reasonable use of excess material in the cavity area while ensuring the formability and appearance quality of the parts, thus effectively improving the material utilization rate of the parts.

[0012] In a first aspect, a stamping method for an outer panel component of an automotive glass panoramic sunroof is provided, comprising the following steps:

[0013] Process compensation is performed on the glass canopy area of ​​the semi-finished top cover outer panel parts to form a first groove on the glass canopy installation area of ​​the glass canopy area.

[0014] The glass canopy installation area is partially cut to allow material to flow into the space;

[0015] The glass canopy installation area is reshaped, and the glass canopy waste recycling area of ​​the glass canopy area is cut off. The glass canopy installation area surrounds the outside of the glass canopy waste recycling area.

[0016] In some embodiments, the width of the straight segment on the cross-section of the first groove is greater than or equal to a first design value.

[0017] In some embodiments, the first design value is 40 mm.

[0018] In some embodiments, a second groove is formed at at least one corner of the glass canopy installation area, the second groove being located within the first groove.

[0019] In some embodiments, the straight-line distance from the second groove to the corner of the glass canopy mounting area is greater than or equal to a second design value.

[0020] In some embodiments, the second design value is 40 mm.

[0021] In some embodiments, the cross-sectional shape of the second groove is different from that of the first groove.

[0022] In some embodiments, the first groove has a U-shaped cross-section and the second groove has a crescent-shaped cross-section.

[0023] In some embodiments, the glass canopy installation area is partially cut to create a space for material to flow in, including the following steps:

[0024] The glass canopy installation area is partially perforated to allow material to flow into the space.

[0025] In some embodiments, the glass canopy installation area is partially cut to create a space for material to flow in, including the following steps:

[0026] A cut is made in the glass canopy installation area, and the materials on both sides of the cut are offset in the Z direction of the vehicle coordinate system to form a material flow space.

[0027] In some embodiments, the stamping method further includes:

[0028] The glass canopy mounting platform, which is formed by shaping the glass canopy mounting area, is punched to form glass canopy mounting positioning holes.

[0029] In some embodiments, after process compensation is performed on the glass canopy area of ​​the semi-finished top cover outer panel parts, and before the glass canopy mounting area is shaped to form the glass canopy mounting platform, the stamping method further includes the following steps:

[0030] Trim the outer contour of the side wall overlap area where the semi-finished top cover outer panel part overlaps with the side wall;

[0031] And / or, trim the outer contour of the overlap area between the semi-finished top cover outer panel part and the front windshield;

[0032] And / or, perform concave wedge shaping on the tail end of the semi-finished top cover outer panel part that overlaps with the back door.

[0033] In some embodiments, after partially cutting the glass canopy mounting area to create a material inflow space, and before punching the glass canopy mounting platform to form glass canopy mounting positioning holes, the stamping method further includes the following steps:

[0034] The appearance of the semi-finished top cover outer panel parts and the side wall overlap area are shaped by the appearance of the edge lines and the stepped surface.

[0035] And / or, shape the appearance of the outer panel of the top cover and the overlapping area of ​​the windshield where the semi-finished product fits with the windshield;

[0036] And / or, the contours of the tail sides where the semi-finished top cover outer panel part overlaps with the back door are trimmed with a wedge, and the outer contour is trimmed.

[0037] In some embodiments, after shaping the glass canopy mounting area to form the glass canopy mounting platform, the stamping method further includes the following steps:

[0038] The overlapping area of ​​the top cover outer panel parts and the side panel is shaped by wedge-flipping and punched.

[0039] And / or, punching windshield side holes in the windshield overlap area where the semi-finished top cover outer panel parts mate with the windshield;

[0040] And / or, the tail end of the semi-finished top cover outer panel part that overlaps with the back door is folded and shaped, and a step hole is punched.

[0041] In some embodiments, a shaped waste is formed between two adjacent material inflow spaces, connecting the glass canopy installation area with the glass canopy waste recycling area;

[0042] The area for recycling glass canopy waste from the cut-off glass canopy area includes:

[0043] The shaped waste is cut off from the glass canopy installation area so that the glass canopy waste recycling area and the shaped waste are separated from the glass canopy installation area as a whole.

[0044] In some embodiments, the stamping method further includes cutting the shaped waste from the glass canopy waste recycling area.

[0045] In some embodiments, removing the shaped waste from the glass canopy waste recycling area includes the following steps:

[0046] In the Z-axis of the vehicle coordinate system, the glass canopy waste recycling area and the shaped waste are driven to move relative to the glass canopy installation area as a whole, so that the glass canopy waste recycling area and the shaped waste are located below the glass canopy installation area as a whole.

[0047] Cut the waste material of the specified shape to obtain the recycling area for the glass canopy waste.

[0048] In some embodiments, the glass canopy waste recycling area and the shaped waste are treated as a whole, and the height difference between them and the glass canopy installation area is the design height difference.

[0049] In some embodiments, the design height difference is 20 mm.

[0050] Secondly, a stamping system for the outer panel of an automotive glass sunroof is provided, comprising:

[0051] The first module is used to: perform process compensation on the glass canopy area of ​​the semi-finished top cover outer panel parts, so as to form a first groove on the glass canopy installation area of ​​the glass canopy area.

[0052] The second module is used to: partially cut the glass canopy installation area to create a space for material to flow in;

[0053] The third module is used to: reshape the glass canopy installation area and cut off the glass canopy waste recycling area of ​​the glass canopy area, wherein the glass canopy installation area surrounds the outside of the glass canopy waste recycling area.

[0054] The beneficial effects of the technical solution provided in this application include:

[0055] This application provides a stamping method and system for automotive glass sunroof roof outer panel parts. The glass sunroof area mainly includes two parts: a glass sunroof installation area and a glass sunroof waste recycling area. The glass sunroof installation area is formed into the installation position of the glass sunroof through subsequent shaping, while the glass sunroof waste recycling area is cut to form a hollow area on the semi-finished roof outer panel parts.

[0056] The first groove extends around the circumference of the glass canopy installation area. Through process compensation, the first groove is formed, which can ensure the full forming of the part. At the same time, since the first groove is designed in the glass canopy installation area, rather than the glass canopy waste recycling area, it can be fully utilized after the glass canopy waste recycling area is cut off in subsequent processes. Therefore, this application can achieve the purpose of reasonably utilizing the excess material in the cavity area while ensuring the full forming of the part and the appearance quality of the part, and effectively improving the material utilization rate of the part, by performing process compensation in the glass canopy installation area and not making any compensation in the glass canopy waste recycling area.

[0057] The advantages of designing material inflow spaces are twofold. First, it facilitates the flow of material during subsequent shaping processes of the glass canopy installation area, preventing excess material from having nowhere to flow or be contained, thus avoiding defects in the local appearance. It also prevents excessive material inflow, which could lead to significant springback in subsequent processes, increasing the difficulty of manufacturing and debugging parts and potentially delaying the manufacturing cycle. Second, the formation of shape waste between adjacent material inflow spaces connects the glass canopy installation area with the glass canopy waste recycling area. This ensures that the two areas are connected as a whole, facilitating subsequent shaping and trimming processes, and also making it easier to cut the glass canopy waste recycling area from the glass canopy installation area. Attached Figure Description

[0058] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0059] Figure 1 This is a schematic diagram of a semi-finished top cover outer panel part provided in an embodiment of this application;

[0060] Figure 2 Provided for the embodiments of this application Figure 1 Cross-sectional view along the AA direction;

[0061] Figure 3 Provided for the embodiments of this application Figure 1 Cross-sectional view along the BB direction;

[0062] Figure 4 Provided for the embodiments of this application Figure 1 Cross-sectional view along the C-axis;

[0063] Figure 5 A schematic diagram showing the material flow space formed on the semi-finished top cover outer panel part according to an embodiment of this application;

[0064] Figure 6 A schematic diagram of cutting shaped waste onto a semi-finished top cover outer panel part provided in an embodiment of this application;

[0065] Figure 7 This is a schematic diagram of a stamped outer cover panel part provided in an embodiment of this application;

[0066] Figure 8 This is a schematic diagram showing the height difference between the outer top panel component and the glass canopy waste recycling area provided in an embodiment of this application.

[0067] In the diagram: 1. Semi-finished outer panel parts; 2. Glass canopy area; 3. Glass canopy installation area; 4. First groove; 5. Material inflow space; 6. Glass canopy installation platform; 7. Glass canopy waste recycling area; 8. Glass canopy installation positioning hole; 9. Second groove; 10. Side panel overlap area; 11. Front windshield overlap area; 12. Rear end; 13. Shaped waste. Detailed Implementation

[0068] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0069] This application provides a stamping method for automotive glass sunroof outer panel parts, which can make reasonable use of excess material in the cavity area while ensuring the formability and appearance quality of the parts, thus effectively improving the material utilization rate of the parts.

[0070] The central hollow area on the outer panel of a car roof can be made into a sunroof, such as a panoramic sunroof, or a sunroof curtain, such as a panoramic sunroof curtain. The difference between a sunroof and a sunroof curtain is that a sunroof can be opened and closed, while a sunroof curtain cannot be opened and is completely enclosed. However, both sunroofs and sunroof curtains require cutting the middle section of the outer panel of the car roof to form the central hollow area before installing the glass. The recycling of this material from the central hollow area is a common requirement for both panoramic sunroofs and panoramic sunroof curtains. Therefore, the term "car glass sunroof" mentioned in this application should be interpreted broadly; that is, "car glass sunroof" does not only refer to the sunroof curtain, but excludes the sunroof itself and should be understood to include both the sunroof curtain and the sunroof curtain.

[0071] Therefore, the stamping method mentioned in this application is applicable not only to the installation of glass after the outer panel parts of the top cover are stamped to form a skylight, but also to the installation of glass after the outer panel parts of the top cover are stamped to form a skylight.

[0072] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown in the figure, this application provides a stamping method for an outer panel part of an automotive glass sunroof, which includes the following steps:

[0073] 101: Perform process compensation on the glass canopy area 2 of the semi-finished product 1 of the outer panel of the top cover to form a first groove 4 on the glass canopy installation area 3 of the glass canopy area 2.

[0074] See Figure 1 As shown, the glass canopy area 2 mainly includes two parts: the glass canopy installation area 3 and the glass canopy waste recycling area 7. The glass canopy installation area 3 is annular and will be shaped into the installation position of the glass canopy through subsequent shaping. After the glass canopy waste recycling area 7 is cut, a hollow area is formed on the semi-finished product 1 of the outer panel of the top cover, and the cut material is recycled.

[0075] The first groove 4 extends around the circumference of the glass canopy installation area 3. Through process compensation, the first groove 4 is formed, which can ensure the full forming of the part. At the same time, since the first groove 4 is designed in the glass canopy installation area 3, rather than the glass canopy waste recycling area 7, it can be fully utilized after the glass canopy waste recycling area 7 is cut off in subsequent processes. Therefore, this application can achieve the purpose of reasonably utilizing the excess material in the cavity area while ensuring the full forming of the part and the appearance quality of the part, and effectively improving the material utilization rate of the part by performing process compensation in the glass canopy installation area 3 and not making any compensation in the glass canopy waste recycling area 7.

[0076] 102: Partially cut the glass canopy installation area 3 to form a material inflow space 5.

[0077] See Figure 5 As shown, multiple material inflow spaces 5 are formed by intermittently cutting along the circumference of the glass canopy installation area 3. The advantages of designing these material inflow spaces are twofold: firstly, it facilitates the flow of material during subsequent shaping processes of the glass canopy installation area 3, preventing excess material from having nowhere to flow or be contained, thus avoiding defects in the local appearance; secondly, it prevents excessive material flow, which could lead to significant springback in subsequent processes, increasing the difficulty of manufacturing and debugging parts and potentially delaying the manufacturing cycle. Thirdly, a shape waste 13 is formed between two adjacent material inflow spaces 5. The shape waste 13 connects the glass canopy installation area 3 with the glass canopy waste recycling area 7, ensuring that the two areas are connected as a whole, facilitating subsequent shaping and trimming processes, and also making it easier to finally cut the glass canopy waste recycling area 7 from the glass canopy installation area 3.

[0078] 103: Shape the glass canopy installation area 3 and cut off the glass canopy waste recycling area 7 of the glass canopy area 2, wherein the glass canopy installation area 3 surrounds the outside of the glass canopy waste recycling area 7.

[0079] This application utilizes a stamping process to make appropriate process compensations and reasonable planning for each process in the drawing process. This ensures the full forming of the parts and the appearance quality of the parts, while also enabling the collection and utilization of intermediate waste, thereby improving the material utilization rate of the parts and reducing the cost of the parts.

[0080] See Figure 2 and Figure 3As shown, in order to avoid the slippage of the appearance edge line of the top cover outer plate part caused by the drastic change in the shape of the first groove 4, the width L1 of the straight segment on the cross section of the first groove 4 is greater than or equal to the first design value. The first design value can be assigned based on experience or based on the simulation effect.

[0081] For example, as an example, the first design value L1 is 40mm.

[0082] The main body of a panoramic sunroof or panoramic canopy is generally rectangular, but it is usually curved at the four corners. Correspondingly, the corner angles of the glass canopy installation area 3 will also form curved bends, such as... Figure 1 As shown in the diagram. During the shaping process, the bends are prone to deformation, and their stretching is greater than that of the straight sections. Therefore, in some preferred embodiments, see... Figure 1 and Figure 4 As shown, a second groove 9 is also formed at at least one corner of the glass canopy mounting area 3, and the second groove 9 is located in the first groove 4. The additional addition of a second groove 9 at the corner of the glass canopy mounting area 3 can increase the local stretching of the part, thereby further ensuring that the part is fully formed.

[0083] See Figure 4 As shown, to avoid drastic changes in the shape of the second groove 9 causing slippage of the outer edge of the top cover components, the straight-line distance L2 from the second groove 9 to the corner of the glass canopy installation area 3 is greater than or equal to the second design value. The second design value can be assigned based on experience or simulation results.

[0084] For example, as an example, the second design value L2 is 40mm.

[0085] It should be noted that although the first groove 4 extends around the glass canopy installation area 3, since the second groove 9 is formed in the first groove 4, the width L1 of the straight section of the first groove 4 at the corner of the glass canopy installation area 3 can be designed to be larger.

[0086] The cross-sectional shape of the second groove 9 and the first groove 4 can be the same or different. The second groove 9 and the first groove 4 can be designed with corresponding shapes according to actual forming needs. For example, the cross-sectional shape of the first groove 4 is U-shaped, and the cross-sectional shape of the second groove 9 is crescent-shaped.

[0087] Because corner forming is prone to excessive material wrinkling, resulting in surface defects and concavity, the drawing supplement at corners needs to have more shape than other areas to achieve material suction. Designing a crescent-shaped second groove at the corner not only increases material suction but also allows the two ends of the crescent to gradually transition and disappear into the U-shaped first groove 4 drawing supplement area in the straight section outside the corner. The crescent-shaped groove satisfies the forming requirements of the corner area without affecting the formability of the straight section.

[0088] In step 102 above, the glass canopy installation area 3 is partially cut to form the material flow space 5, which can be achieved in various ways.

[0089] For example, as an example, partially cutting the glass canopy installation area 3 to create a material inflow space 5 includes the following steps:

[0090] Partial perforation is performed on the glass canopy installation area 3 to form material inflow spaces 5, and a shaped waste 13 is formed between two adjacent material inflow spaces 5, connecting the glass canopy installation area 3 and the glass canopy waste recycling area 7. See [reference needed] Figure 5 As shown.

[0091] For example, as another example, partially cutting the glass canopy installation area 3 to create a material inflow space 5 includes the following steps:

[0092] Cut a notch in the glass canopy installation area 3 and offset the material on both sides of the notch in the vehicle coordinate system Z to form a material inflow space 5. A shaped waste 13 is formed between two adjacent material inflow spaces 5 to connect the glass canopy installation area 3 with the glass canopy waste recycling area 7.

[0093] The vehicle coordinate system is a coordinate system constructed with the length direction of the vehicle as the X-axis, the width direction of the vehicle as the Y-axis, and the height direction of the vehicle as the Z-axis.

[0094] The two methods described above are, one is to form a hole by stamping, and the other is to form a cut by cutting.

[0095] Following step 103 above, the stamping method further includes: stamping the glass canopy mounting platform 6 obtained by shaping the glass canopy mounting area 3 to form glass canopy mounting positioning holes 8, thereby obtaining a stamped top cover outer panel part, such as... Figure 7 As shown.

[0096] See Figure 5As shown, in some preferred embodiments, after process compensation is performed on the glass canopy area 2 of the semi-finished top cover outer panel component 1, and before the glass canopy mounting area 3 is shaped to form the glass canopy mounting platform 6, the stamping method further includes the following steps:

[0097] Trim the outer contour of the side wall overlap area 10 where the semi-finished top cover outer panel part 1 overlaps with the side wall.

[0098] See Figure 5 As shown, in some preferred embodiments, after process compensation is performed on the glass canopy area 2 of the semi-finished top cover outer panel component 1, and before the glass canopy mounting area 3 is shaped to form the glass canopy mounting platform 6, the stamping method further includes the following steps:

[0099] Trim the outer contour of the windshield overlap area 11 where the semi-finished top cover outer panel part 1 mates with the windshield.

[0100] See Figure 5 As shown, in some preferred embodiments, after process compensation is performed on the glass canopy area 2 of the semi-finished top cover outer panel component 1, and before the glass canopy mounting area 3 is shaped to form the glass canopy mounting platform 6, the stamping method further includes the following steps:

[0101] The tail portion 12 of the top cover outer panel component semi-finished product 1 that overlaps with the back door is shaped into an inward concave wedge.

[0102] See Figure 6 As shown, in some preferred embodiments, after partially cutting the glass canopy mounting area 3 to form the material inflow space 5, and before punching the glass canopy mounting platform 6 to form the glass canopy mounting positioning hole 8, the stamping method further includes the following steps:

[0103] The appearance of the semi-finished product 1 of the top cover outer panel part and the side wall overlap area 10 where they overlap are shaped by the appearance of the ridge line and the step surface.

[0104] See Figure 6 As shown, in some preferred embodiments, after partially cutting the glass canopy mounting area 3 to form the material inflow space 5, and before punching the glass canopy mounting platform 6 to form the glass canopy mounting positioning hole 8, the stamping method further includes the following steps:

[0105] The appearance of the outer cover panel semi-finished product 1 and the front windshield overlap area 11 that mates with the front windshield is shaped by the appearance of the ridge lines and stepped surfaces.

[0106] See Figure 6As shown, in some preferred embodiments, after partially cutting the glass canopy mounting area 3 to form the material inflow space 5, and before punching the glass canopy mounting platform 6 to form the glass canopy mounting positioning hole 8, the stamping method further includes the following steps:

[0107] The contours of the two sides of the tail section 12 where the semi-finished product 1 of the top cover outer panel part overlaps with the back door are trimmed with a wedge, and the outer contour is trimmed.

[0108] See Figure 7 As shown, in some preferred embodiments, after shaping the glass canopy mounting area 3 to form the glass canopy mounting platform 6, the stamping method further includes the following steps:

[0109] The semi-finished product 1 of the top cover outer panel part and the side wall overlap area 10 where they overlap are shaped by a wedge and punched.

[0110] See Figure 7 As shown, in some preferred embodiments, after shaping the glass canopy mounting area 3 to form the glass canopy mounting platform 6, the stamping method further includes the following steps:

[0111] The front windshield side holes are punched in the front windshield overlap area 11 where the semi-finished product 1 of the top cover outer panel part is matched with the front windshield.

[0112] See Figure 7 As shown, in some preferred embodiments, after shaping the glass canopy mounting area 3 to form the glass canopy mounting platform 6, the stamping method further includes the following steps:

[0113] The tail portion 12 of the top cover outer panel component semi-finished product 1 that overlaps with the back door is folded and shaped, and a step hole is punched.

[0114] See Figure 5 As shown, while forming the material inflow space 5, a shaped waste 13 is formed between two adjacent material inflow spaces 5, connecting the glass canopy installation area 3 and the glass canopy waste recycling area 7.

[0115] There are at least three ways to cut off the glass canopy waste recycling area 7 from the glass canopy installation area 3.

[0116] For example, one approach is to cut along the connection between the shaped waste 13 and the glass canopy waste recycling area 7, leaving the shaped waste 13 completely on the glass canopy installation area 3. The advantage of this approach is that the glass canopy waste recycling area 7 can be directly utilized later. However, the disadvantage is that the glass canopy installation area 3 still needs to be processed to remove the shaped waste 13 from it in order to obtain the top cover outer panel parts. This inevitably affects the production efficiency of the main product top cover outer panel parts.

[0117] Another approach is to cut along the connection between the shaped waste 13 and the glass canopy installation area 3, leaving the shaped waste 13 completely on the glass canopy waste recycling area 7. The advantage of this approach is that it yields the outer panel of the top cover, improving the production efficiency of the main product's outer panel. However, the disadvantage is that the glass canopy waste recycling area 7 cannot be directly used afterward; it needs to be processed to remove the shaped waste 13 from it.

[0118] Another approach is to cut along the middle of the shaped waste 13, leaving part of it on the glass canopy installation area 3 and the other part on the glass canopy waste recycling area 7. The drawback of this approach is that the glass canopy waste recycling area 7 cannot be directly used afterward; it requires further processing to remove the shaped waste 13. Simultaneously, the glass canopy installation area 3 also needs to be processed to remove the shaped waste 13 to obtain the top cover outer panel parts. This inevitably affects the production efficiency of the main product's top cover outer panel parts.

[0119] Therefore, considering the above three processing methods, since the outer panel of the top cover is the main product and its production efficiency cannot be affected, the second processing method is preferred, namely, cutting off the glass canopy waste recycling area 7 of the glass canopy area 2, including: cutting off the shaped waste 13 from the glass canopy installation area 3, so that the glass canopy waste recycling area 7 and the shaped waste 13 are separated from the glass canopy installation area 3 as a whole.

[0120] After the shaped waste 13 is removed from the glass canopy installation area 3, the stamping method further includes removing the shaped waste 13 from the glass canopy waste recycling area 7.

[0121] After the shaped waste 13 is cut off from the glass canopy installation area 3, although the glass canopy waste recycling area 7 and the shaped waste 13 are separated from the glass canopy installation area 3 as a whole, they are still on the same plane. If the shaped waste 13 is directly cut off from the glass canopy waste recycling area 7 at this time, the shaped waste 13 will interfere with the glass canopy installation area 3 when it falls. The shaped waste 13 also has a certain weight. When interference occurs, it may have a certain impact on the appearance of the top cover outer panel parts, or even damage the top cover outer panel parts.

[0122] To avoid the above situation, see Figure 8 As shown, in some preferred embodiments, cutting the shaped waste 13 from the glass canopy waste recycling area 7 includes the following steps:

[0123] 201: In the Z direction of the vehicle coordinate system, drive the glass canopy waste recycling area 7 and the shaped waste 13 as a whole to move relative to the glass canopy installation area 3, so that the glass canopy waste recycling area 7 and the shaped waste 13 as a whole are located below the glass canopy installation area 3.

[0124] Specifically, during the transfer, adjustments can be made using a transfer end-feeder so that the glass canopy waste recycling area 7 and the shaped waste 13 are located as a whole below the glass canopy installation area 3.

[0125] For example, the glass canopy installation area 3 can be adjusted upwards individually using a transfer end-feeder so that the glass canopy waste recycling area 7 and the shaped waste 13 are located as a whole below the glass canopy installation area 3.

[0126] For example, the glass canopy waste recycling area 7 and the shaped waste 13 can be adjusted downwards separately by the transfer end-feeder so that the glass canopy waste recycling area 7 and the shaped waste 13 are located as a whole below the glass canopy installation area 3.

[0127] For example, the glass canopy installation area 3 can be adjusted upward by a transfer end-feeder, while the glass canopy waste recycling area 7 and the shaped waste 13 can be adjusted downward, so that the glass canopy waste recycling area 7 and the shaped waste 13 are located as a whole below the glass canopy installation area 3.

[0128] 202: Cut the waste material 13 of the shape to obtain the glass canopy waste recycling area 7.

[0129] To ensure the smooth falling of the cut-out waste material 13 without interfering with or damaging the outer panel components of the roof, the glass canopy waste recycling area 7 and the waste material 13 are treated as a whole, with the height difference between them and the glass canopy installation area 3 defined as the design height difference. This design height difference can be assigned based on experience or simulation results.

[0130] For example, as an example, the design height difference H is 20mm.

[0131] This application embodiment also provides a stamping system for the outer panel of an automotive glass sunroof, comprising a first module, a second module, and a third module, wherein:

[0132] The first module is used to perform process compensation on the glass canopy area 2 of the semi-finished product 1 of the outer panel of the top cover, so as to form a first groove 4 on the glass canopy installation area 3 of the glass canopy area 2.

[0133] See Figure 1 As shown, the glass canopy area 2 mainly includes two parts: the glass canopy installation area 3 and the glass canopy waste recycling area 7. The glass canopy installation area 3 is annular and will be shaped into the installation position of the glass canopy through subsequent shaping. After the glass canopy waste recycling area 7 is cut, a hollow area is formed on the semi-finished product 1 of the outer panel of the top cover, and the cut material is recycled.

[0134] The first groove 4 extends around the circumference of the glass canopy installation area 3. Through process compensation, the first groove 4 is formed, which can ensure the full forming of the part. At the same time, since the first groove 4 is designed in the glass canopy installation area 3, rather than the glass canopy waste recycling area 7, it can be fully utilized after the glass canopy waste recycling area 7 is cut off in subsequent processes. Therefore, this application can achieve the purpose of reasonably utilizing the excess material in the cavity area while ensuring the full forming of the part and the appearance quality of the part, and effectively improving the material utilization rate of the part by performing process compensation in the glass canopy installation area 3 and not making any compensation in the glass canopy waste recycling area 7.

[0135] The second module is used to partially cut the glass canopy installation area 3 to form a material inflow space 5.

[0136] See Figure 5As shown, multiple material inflow spaces 5 are formed by intermittently cutting along the circumference of the glass canopy installation area 3. The advantages of designing these material inflow spaces are twofold: firstly, it facilitates the flow of material during subsequent shaping processes of the glass canopy installation area 3, preventing excess material from having nowhere to flow or be contained, thus avoiding defects in the local appearance; secondly, it prevents excessive material flow, which could lead to significant springback in subsequent processes, increasing the difficulty of manufacturing and debugging parts and potentially delaying the manufacturing cycle. Thirdly, a shape waste 13 is formed between two adjacent material inflow spaces 5. The shape waste 13 connects the glass canopy installation area 3 with the glass canopy waste recycling area 7, ensuring that the two areas are connected as a whole, facilitating subsequent shaping and trimming processes, and also making it easier to finally cut the glass canopy waste recycling area 7 from the glass canopy installation area 3.

[0137] The third module is used to: reshape the glass canopy installation area 3 and cut off the glass canopy waste recycling area 7 of the glass canopy area 2, wherein the glass canopy installation area 3 surrounds the outside of the glass canopy waste recycling area 7.

[0138] In summary, this application achieves the goal of obtaining surplus usable waste from the glass canopy recycling area while ensuring the quality of the outer panel components through sophisticated process design. Specifically, the process involves first adding shape compensation to the glass canopy installation area, then removing some waste from the installation area to facilitate the flow of shaping materials for the subsequent glass canopy installation platform; then cutting off the remaining waste and the connection points between the waste and the components without waste; and finally removing the remaining shaped waste. Through the rational arrangement of these processes, a complete and usable waste blank plate is obtained.

[0139] When performing process compensation on the glass canopy installation area, a full-circumference U-shaped groove is set in the middle, and crescent-shaped grooves are added at the four corners of the easily deformable glass canopy installation area to increase the local stretching of the parts. The width of the straight section of the U-shaped groove is at least 40mm, and the length of the straight section from the crescent-shaped groove at the four corners to the corner of the glass canopy installation area is at least 40mm.

[0140] By changing the relative position of the parts and waste materials through the intermediate transfer end-feeder, the intermediate waste material is sunk 20mm downward in the Z direction, maintaining a distance from the surrounding glass canopy mounting platform in the Z direction. This avoids the waste material leaking down and interfering with the glass canopy mounting platform when cutting the shaped waste material, ensuring the smooth implementation of the process and achieving the final collection and utilization of waste materials in the production line.

[0141] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0142] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0143] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A stamping method for an outer panel component of an automotive glass panoramic sunroof, characterized in that, It includes the following steps: Process compensation is performed on the glass canopy area (2) of the top cover outer panel component semi-finished product (1) to form a first groove (4) on the glass canopy installation area (3) of the glass canopy area (2). The glass canopy installation area (3) is partially cut to form a material inflow space (5); The glass canopy installation area (3) is shaped and the glass canopy waste recycling area (7) of the glass canopy area (2) is cut off. The glass canopy installation area (3) surrounds the outside of the glass canopy waste recycling area (7). The stamping method further includes: The glass canopy mounting platform (6) obtained by shaping the glass canopy mounting area (3) is punched to form glass canopy mounting positioning holes (8). After the process compensation is performed on the glass canopy area (2) of the semi-finished top cover outer panel parts (1), and before the glass canopy mounting area (3) is shaped to form the glass canopy mounting platform (6), the stamping method further includes the following steps: Trim the outer contour of the side wall overlap area (10) where the semi-finished product (1) of the top cover outer panel part overlaps with the side wall; And / or, trim the outer contour of the windshield overlap area (11) of the semi-finished top cover outer panel part (1) that mates with the windshield; And / or, the tail (12) where the top cover outer panel part semi-finished product (1) overlaps with the back door is shaped into an inward concave wedge; After partially cutting the glass canopy installation area (3) to form a material inflow space (5), and before punching the glass canopy mounting platform (6) to form the glass canopy installation positioning hole (8), the stamping method further includes the following steps: The appearance of the semi-finished product (1) of the top cover outer panel part and the side wall overlap area (10) where they overlap are shaped by the appearance of the edge lines and the step surface. And / or, the appearance of the outer panel component semi-finished product (1) and the windshield overlap area (11) that mates with the windshield are shaped by the appearance of the ridge line and the stepped surface; And / or, the contours of the two sides of the tail (12) where the top cover outer panel part semi-finished product (1) overlaps with the back door are trimmed by bevel trimming, and the outer contour is trimmed. After shaping the glass canopy mounting area (3) to form the glass canopy mounting platform (6), the stamping method further includes the following steps: The semi-finished product (1) of the top cover outer panel part and the side wall overlap area (10) where they overlap are shaped by a wedge and punched. And / or, punching the windshield side holes in the windshield overlap area (11) of the top cover outer panel part semi-finished product (1) that mates with the windshield; And / or, the tail (12) of the top cover outer panel part semi-finished product (1) that overlaps with the back door is folded and shaped and punched with a step hole.

2. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 1, characterized in that: The width of the straight segment on the cross section of the first groove (4) is greater than or equal to the first design value.

3. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 2, characterized in that: The first design value is 40mm.

4. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 1, characterized in that: A second groove (9) is also formed at at least one corner of the glass canopy installation area (3), and the second groove (9) is located in the first groove (4).

5. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 4, characterized in that: The straight-line distance from the second groove (9) to the corner of the glass canopy installation area (3) is greater than or equal to the second design value.

6. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 5, characterized in that: The second design value is 40mm.

7. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 4, characterized in that: The second groove (9) has a different cross-sectional shape than the first groove (4).

8. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 7, characterized in that: The first groove (4) has a U-shaped cross-section, and the second groove (9) has a crescent-shaped cross-section.

9. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 1, characterized in that, The glass canopy installation area (3) is partially cut to form a material inflow space (5), including the following steps: The glass canopy installation area (3) is partially perforated to form a material inflow space (5).

10. The stamping method for the outer panel of the automotive glass sunroof as described in claim 1, characterized in that, The glass canopy installation area (3) is partially cut to form a material inflow space (5), including the following steps: Cut a notch in the glass canopy installation area (3) and offset the material on both sides of the notch in the vehicle coordinate system Z to form a material flow space (5).

11. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 1, characterized in that: The two adjacent material inflow spaces (5) form a shape waste (13) that connects the glass canopy installation area (3) with the glass canopy waste recycling area (7); The glass canopy waste recycling area (7) that is cut off from the glass canopy area (2) includes: The shape waste (13) is cut off from the glass canopy installation area (3) so that the glass canopy waste recycling area (7) and the shape waste (13) are separated from the glass canopy installation area (3) as a whole.

12. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 11, characterized in that, The stamping method further includes cutting the shape waste (13) from the glass canopy waste recycling area (7).

13. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 12, characterized in that, The shaped waste (13) is removed from the glass canopy waste recycling area (7) by the following steps: In the Z direction of the vehicle coordinate system, the glass canopy waste recycling area (7) and the shaped waste (13) are driven to move relative to the glass canopy installation area (3) as a whole, so that the glass canopy waste recycling area (7) and the shaped waste (13) are located below the glass canopy installation area (3) as a whole. Cut the waste material of the shape (13) to obtain the glass canopy waste recycling area (7).

14. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 13, characterized in that: The glass canopy waste recycling area (7) and the shaped waste (13) are integrated, and the height difference between them and the glass canopy installation area (3) is the design height difference.

15. The stamping method for the outer panel of the automotive glass panoramic sunroof as described in claim 14, characterized in that: The design height difference is 20mm.

16. A stamping system for outer panel parts of an automotive glass sunroof, applied to the stamping method for outer panel parts of an automotive glass sunroof as described in claim 1, characterized in that, It includes: The first module is used to: perform process compensation on the glass canopy area (2) of the top cover outer panel component semi-finished product (1) to form a first groove (4) on the glass canopy installation area (3) of the glass canopy area (2). The second module is used to: partially cut the glass canopy installation area (3) to form a material inflow space (5); The third module is used to: reshape the glass canopy installation area (3) and cut off the glass canopy waste recycling area (7) of the glass canopy area (2), wherein the glass canopy installation area (3) surrounds the outside of the glass canopy waste recycling area (7).

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