Window frame structure for preventing ED sudden boiling, rolling type vehicle door window frame and vehicle
By designing a stamping area in the window frame structure, the electrophoretic liquid is prevented from entering, and the problem of poor ED boiling is solved, and the effect of simple process, high yield and high production efficiency is achieved.
Patent Information
- Application Number
- CN202420063557.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-10
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-10
AI Technical Summary
In the prior art, roll-type door and window frames are prone to poor ED boiling in the electrophoresis process, the chemical prevention method is complex and costly, and the welding hole plugging operation is poor, which affects production efficiency.
By designing the stamping area between the outer sheet metal and the inner sheet metal in the window frame structure, a gap of less than 0.05mm² is formed to prevent the electrophoretic liquid from entering, thereby achieving a sealing effect and avoiding sudden boiling of ED.
The process flow is simplified, the yield rate is improved, the equipment investment is reduced, the appearance is avoided caused by crooked welding, and the production efficiency and workability are improved.
Smart Images
Figure CN222246782U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle manufacturing, in particular to a window frame structure for preventing ED sudden boiling, a rolling type vehicle door window frame and a vehicle. Background Art
[0002] Roller-type door and window frames are made by processing steel into a shape that meets the design section requirements through the circular motion of several groups of rollers of specific shapes. Because of its wide range of shapes, it is currently widely used in vehicle window frame structures. Electrophoresis (abbreviated as electrophoresis, electrophoresis in English is electro-deposition, hereinafter referred to as ED) refers to the fact that under the action of the positive and negative voltages applied to the electrophoretic coating, the charged coating ions move to the cathode and react with the cathode surface to form insoluble substances, which are deposited on the surface of the workpiece. In the automotive manufacturing industry, the ED method is widely used to treat door and window frames to achieve the effect of corrosion and rust prevention.
[0003] In order to ensure the edge wrapping processing of roller pressing, space will be reserved in the cross section of the edge wrapping for the bending of the plate. This space will form a small pipe (a circle with a diameter of about 0.5mm to 1.0mm) after the window frame is roll-formed. When the door window frame of this structure undergoes the electrophoresis process, the entire vehicle will be completely immersed in the electrophoresis pool, and the electrophoresis liquid will also fill the gaps in the pipe; as the entire vehicle undergoes heating and drying in the subsequent process, the electrophoresis liquid remaining in the pipe will expand due to the heat, overflow the window frame, and splash to other parts of the vehicle body, causing various appearance defects such as residue, bubbles, and bulges. This phenomenon is generally called ED sudden boiling defect in technology.
[0004] At present, there are two main types of prevention for ED sudden boiling, namely chemical prevention and physical prevention. Chemical prevention refers to the process of adding inhibitors, developing high temperature resistant electrophoretic fluid, adding inert gas, etc. in the electrophoretic pool to prevent the sudden boiling of the electrophoretic fluid in the pipeline; physical prevention refers to adding welds to the gap pipeline at the end of the edging, and sealing the inside of the pipeline through the welds, which is generally called "welding plugging" in engineering. However, the chemical prevention method is relatively complicated, involves the preparation of multiple components, and has high testing costs and difficulties; the welding plugging prevention method has poor operability. Since the gap of the edging is small after the window frame is formed, if the welds are added manually, it is easy for the welds to be crooked, affecting other appearance surfaces; if the welds are added by equipment, it is necessary to invest in equipment such as welding robots and grinding robots, which increases the production rhythm of the product and is not conducive to improving production efficiency.
[0005] In view of this, it is necessary to provide a new window frame structure, a roller-type door window frame and a vehicle for preventing ED sudden boiling, so as to solve or at least alleviate the above-mentioned technical defects. Utility Model Content
[0006] The main purpose of the utility model is to provide a window frame structure, a roller-pressed door window frame and a vehicle for preventing ED sudden boiling, aiming to solve the technical problems of complex chemical prevention process and poor welding plugging workability in the prior art.
[0007] To achieve the above object, according to one aspect of the present invention, the present invention provides a window frame structure for preventing ED sudden boiling, comprising:
[0008] The outer sheet metal comprises a first side edge, a bending section and a second side edge connected in sequence, and a receiving groove is formed between the first side edge and the second side edge;
[0009] The inner sheet metal extends into the accommodating groove and abuts against the first side and the second side respectively. One end of the inner sheet metal close to the bending section is a stamping end. The stamping end and the bending section are stamped to form a stamping area together, and a gap is formed between the inner sheet metal and the bending section.
[0010] In one embodiment, the cross-sectional area of the gap is less than 0.05 mm 2 .
[0011] In one embodiment, the bending section includes a stamping contact section and a tip connected to each other, the tip is connected to the first side, and the stamping contact section is connected to the second side; from the second side toward the first side, the stamping contact section is inclined away from the inner sheet metal.
[0012] In one embodiment, the punching end is formed with a bevel, and the gap is formed between the bevel and the punching contact section.
[0013] In one embodiment, the height of the tip is less than 1 mm.
[0014] In one embodiment, the stamping contact section is formed with a stamping contact surface, and the stamping contact surface is arranged away from the gap.
[0015] In one embodiment, the first side edge and the second side edge are arranged parallel to each other;
[0016] And / or, the outer sheet metal further includes an extension portion, and two ends of the extension portion are respectively connected to the second side and the inner sheet metal.
[0017] In one embodiment, the window frame structure for preventing ED sudden boiling is an integrally formed part.
[0018] According to another aspect of the utility model, the utility model also provides a roller-type vehicle door window frame, which includes a door frame upper strip and a door frame C-pillar, and the door frame upper strip and the door frame C-pillar are both formed with the window frame structure for preventing ED sudden boiling as described above.
[0019] According to another aspect of the utility model, the utility model further provides a vehicle, the vehicle comprising a door assembly and the above-mentioned roller-type door window frame arranged on the door assembly.
[0020] In the technical solution of the utility model, the outer sheet metal wraps the inner sheet metal, and after the outer sheet metal is bent, there will inevitably be a hole with a slightly larger cross-sectional area between the outer sheet metal and the inner sheet metal, and the electrophoretic liquid can easily enter the hole; and by punching the hole from the outer sheet metal to form a punching area, the bending section and the inner sheet metal are deformed to a certain extent, the bending section and the inner sheet metal are close to each other, and the hole is punched to form a gap with a greatly reduced cross-sectional area, which effectively prevents the electrophoretic liquid from entering the interior of the sheet metal pipeline from this position, so that it plays a sealing role, thereby eliminating the disadvantage of ED sudden boiling.
[0021] Compared with the window frame structure formed by chemical prevention methods, the utility model does not need to spend a lot of man-hours and costs to explore chemical prevention methods, and has a simple process, a high yield rate and is easy to promote.
[0022] Compared with the window frame structure formed by welding to plug the holes, the utility model eliminates the risk of the welding points being crooked during welding to plug the holes, which affects the quality of other appearance surfaces; the equipment investment is small, the production rhythm is not affected, the production efficiency is high, and the operability is better.
[0023] The utility model can complete the sealing of the gap in the sheet metal hemming through simple stamping equipment, without considering the risk of secondary poor appearance caused by welding points, without developing and debugging new chemical prevention methods, eliminating the poor appearance quality caused by ED sudden boiling, and has the advantages of simple process, high yield, easy promotion, high production efficiency and better operability. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the implementation regulations or the description of the prior art. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0025] Figure 1 It is a schematic diagram of the structure of a roller-type vehicle door window frame in the prior art;
[0026] Figure 2 It is a structural schematic diagram of a cross section of a roller-type vehicle door window frame in the prior art;
[0027] Figure 3 This is a structural schematic diagram of a window frame structure for preventing ED sudden boiling according to an embodiment of the utility model;
[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of a roller-pressed vehicle door window frame before stamping according to an embodiment of the utility model;
[0029] Figure 5 This is a schematic structural diagram of a window frame structure for preventing ED sudden boiling in an embodiment of the utility model before being stamped;
[0030] Figure 6 A schematic diagram of the structural changes of a window frame structure for preventing ED sudden boiling during stamping according to an embodiment of the utility model;
[0031] Figure 7 This is a schematic diagram of the structure of a window frame structure after stamping for preventing ED sudden boiling according to an embodiment of the utility model;
[0032] Figure 8 The figure is a schematic structural diagram of a roller-type vehicle door window frame according to an embodiment of the utility model.
[0033] Description of Figure Numbers:
[0034] Label name Label name 1 External sheet metal 11 First side 2 Inner sheet metal 12 Bend section 3 gap 121 Stamping contact section 4 Stamping area 122 Cutting Edge 100 Window frame structure to prevent ED sudden boiling 123 Stamping contact surface 200 Door frame upper strip 13 Second side 300 Door frame C-pillar 14 Receiving slot 21 hypotenuse 15 Extension 22 Stamping end
[0035] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described implementation methods are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0038] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two groups, such as two groups, three, etc., unless otherwise clearly and specifically defined.
[0039] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two groups of components or the interaction relationship between two groups of components, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0041] Please refer to Figure 3 to Figure 7 According to one aspect of the utility model, the utility model provides a window frame structure for preventing ED sudden boiling, including an outer sheet metal 1 and an inner sheet metal 2; the outer sheet metal 1 includes a first side 11, a bending section 12 and a second side 13 connected in sequence, and a receiving groove 14 is formed between the first side 11 and the second side 13; the inner sheet metal 2 extends into the receiving groove 14 and abuts against the first side 11 and the second side 13 respectively, and one end of the inner sheet metal 2 close to the bending section 12 is a stamping end 22, and the stamping end 22 and the bending section 12 are stamped together to form a stamping area 4, and a gap is formed between the inner sheet metal 2 and the bending section 12.
[0042] In the above embodiment, the outer sheet metal 1 covers the inner sheet metal 2. After the outer sheet metal 1 is bent, a hole with a slightly larger cross-sectional area will inevitably exist between the inner sheet metal 2 and the outer sheet metal 1. Figure 4 and Figure 5 As shown, the electrophoretic liquid easily enters the hole; and by punching the hole from the outer sheet metal 1 to form a punching area 4, the bending section 12 and the inner sheet metal 2 are deformed to a certain extent, the bending section 12 and the inner sheet metal 2 are close to each other, and the hole is punched to form a gap 3 with a greatly reduced cross-sectional area, which effectively prevents the electrophoretic liquid from entering the sheet metal pipe from this position, so that it plays a sealing role, thereby eliminating the disadvantage of ED sudden boiling. The structure before punching is as shown in FIG. Figure 5 As shown in Figure 2, the stamping process is as follows: Figure 6 As shown, the structure after stamping is as follows Figure 7 As shown, the direction indicated by the dotted arrow in the figure is the direction of the punching force.
[0043] Compared with the window frame structure formed by chemical prevention methods, this embodiment does not need to spend a lot of man-hours and costs to explore chemical prevention methods, and has a simple process, a high yield rate and is easy to promote.
[0044] Compared with the window frame structure formed by welding to plug the holes, it is sufficient to punch the holes to form a gap 3 with a greatly reduced cross-sectional area, without welding to plug the holes. This embodiment eliminates the risk of the weld being distorted during welding to plug the holes, affecting the quality of other appearance surfaces. The equipment investment is small, and the production rhythm is not affected (after rolling and cutting the general cross-section, a set of simple stamping equipment can be added, and the stamping process takes about 1s / PCS), the production efficiency is high, and the operability is better.
[0045] This embodiment can complete the sealing of the sheet metal hemming gap 3 through simple stamping equipment, without considering the risk of secondary poor appearance caused by welding points, without developing and debugging new chemical prevention methods, eliminating the poor appearance quality caused by ED sudden boiling, and has the advantages of simple process, high yield, easy promotion, high production efficiency and better operability.
[0046] Reference Figure 7 In one embodiment, the cross-sectional area of the gap 3 is less than 0.05 mm 2 Through actual verification, when the cross-sectional area of gap 3 is less than 0.05mm 2 When the electrophoresis liquid is completely blocked, the sealing effect is better, and the occurrence of ED sudden boiling is prevented.
[0047] Combined with reference Figure 3 and Figure 7 In one embodiment, the bending section 12 includes a stamping contact section 121 and a tip 122 that are interconnected. The tip 122 is connected to the first side 11, and the stamping contact section 121 is connected to the second side 13. From the second side 13 toward the first side 11, the stamping contact section 121 is inclined away from the inner sheet metal 2. The stamping force directly acts on the stamping contact section 121, and the tip 122 is formed by the bending section 12 being squeezed outward. Specifically, the stamping equipment is arranged on the side of the second side 13, and the first side 11 is the edging of the outer sheet metal 1 and is relatively on the inner side. This embodiment has the advantages of simple molding and less impact on the appearance. Among them, the height of the tip 122 is less than 1 mm (the height of the tip can be specifically referred to Figure 3 As shown in the mark “H” in the figure, that is, the width of the outward extrusion deformation of the bending section 12 after stamping must be less than 1 mm, so as not to affect the overall appearance and construction (i.e., assembly).
[0048] Reference Figure 7 In one embodiment, the punching end 22 is formed with a bevel 21, and a gap 3 is formed between the bevel 21 and the punching contact section 121. The punching force acts on the bevel side of the bending section 12, and the inner sheet metal 2 will also be deformed to a certain extent under the action of the punching force to form the bevel 21, and the bevel 21 and the bending section 12 are more closely fitted as a whole, and the gap 3 is smaller.
[0049] Specifically, the stamping contact section 121 is formed with a stamping contact surface 123, and the stamping contact surface 123 is arranged away from the gap 3. The size of the cross-sectional area of the gap 3 can be adjusted by adjusting the width of the stamping contact surface 123. Specifically, the larger the contact area between the stamping device and the bending section 12, the wider the width of the stamping contact surface 123, and the smaller the cross-sectional area of the gap 3.
[0050] In one embodiment, the first side 11 and the second side 13 are arranged parallel to each other. The two side surfaces of the inner sheet metal 2 are respectively in contact with the first side 11 and the second side 13, so as to form a relatively closed area, so that the electrophoretic liquid does not enter the inside of the sheet metal pipe from other gaps. In addition, the outer sheet metal 1 also includes an extension portion 15, and the two ends of the extension portion 15 are respectively connected to the second side 13 and the inner sheet metal 2, so that the outer sheet metal 1 and the inner sheet metal 2 are connected as a whole.
[0051] Reference Figure 4 In one embodiment, the window frame structure for preventing ED sudden boiling is an integrally formed part. The outer sheet metal 1 and the inner sheet metal 2 are formed as a whole by rolling. Figure 4 The specific cross-sectional structure shown in this embodiment has the advantages of high production efficiency, material saving, high structural strength and stable quality.
[0052] Reference Figures 1 to 8 According to another aspect of the present invention, the present invention further provides a roller-type vehicle door window frame, which includes a door frame upper strip 200 and a door frame C-pillar. The door frame upper strip 200 and the door frame C-pillar are both formed with the window frame structure for preventing ED sudden boiling as described above. The specific structure of the window frame structure for preventing ED sudden boiling refers to the above embodiment. Since the roller-type vehicle door window frame adopts all the technical solutions of the above embodiment, it at least has all the beneficial effects brought by the technical solutions of the above embodiment, which will not be described one by one here. The door frame upper strip 200 and the door frame C-pillar in the roller-type vehicle door window frame share a mold, and the general cross-section is as follows Figure 4 As shown, it is processed by a rolling die, cut and then bent into a desired shape; in order to facilitate welding of the two, a part of the sheet metal is usually cut off at the end of the door frame upper strip 200 and the door frame C-pillar to avoid other parts / equipment; the cross section at the cut-off point shows holes formed by the sheet metal edging rolling; if the holes are not processed, the roller-type door window frame will cause ED sudden boiling when the vehicle passes through the electrophoresis process; wherein, the stamping area 4 of the door frame upper strip 200 is located at the rear end of the door frame upper strip 200, and the stamping area 4 of the door frame C-pillar is located at the upper end of the door frame C-pillar; when the stamping equipment acts on each stamping area 4, the door frame upper strip 200 and the door frame C-pillar sheet metal will be squeezed, thereby reducing the area of the hole, so that a gap 3 is formed to play a sealing role, and the electrophoretic liquid cannot enter the interior of the sheet metal pipeline through the space of the gap 3, thereby eliminating the ED sudden boiling defect.
[0053] According to another aspect of the utility model, the utility model further provides a vehicle, the vehicle comprising a door assembly and the above-mentioned roller-type door window frame arranged on the door assembly. The specific structure of the roller-type door window frame refers to the above-mentioned embodiment. Since the vehicle adopts all the technical solutions of the above-mentioned embodiment, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiment, which will not be described one by one here.
[0054] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A window frame structure for preventing ED sudden boiling, characterized in that: include: The outer sheet metal comprises a first side edge, a bending section and a second side edge connected in sequence, and a receiving groove is formed between the first side edge and the second side edge; The inner sheet metal extends into the accommodating groove and abuts against the first side and the second side respectively. One end of the inner sheet metal close to the bending section is a stamping end. The stamping end and the bending section are stamped to form a stamping area together, and a gap is formed between the inner sheet metal and the bending section.
2. The window frame structure for preventing ED sudden boiling as claimed in claim 1, characterized in that: The cross-sectional area of the gap is less than 0.05 mm 2 .
3. The window frame structure for preventing ED sudden boiling as claimed in claim 1, characterized in that: The bending section includes a stamping contact section and a tip connected to each other, the tip is connected to the first side, and the stamping contact section is connected to the second side; from the second side toward the first side, the stamping contact section is inclined away from the inner sheet metal.
4. The window frame structure for preventing ED sudden boiling as claimed in claim 3, characterized in that: The punching end is formed with a bevel, and the gap is formed between the bevel and the punching contact section.
5. The window frame structure for preventing ED sudden boiling as claimed in claim 4, characterized in that: The height of the tip is less than 1 mm.
6. The window frame structure for preventing ED sudden boiling as claimed in claim 3, characterized in that: The stamping contact section is formed with a stamping contact surface, and the stamping contact surface is arranged away from the gap.
7. The window frame structure for preventing ED sudden boiling according to any one of claims 1 to 6, characterized in that: The first side edge and the second side edge are arranged parallel to each other; And / or, the outer sheet metal further includes an extension portion, and two ends of the extension portion are respectively connected to the second side and the inner sheet metal.
8. The window frame structure for preventing ED sudden boiling according to any one of claims 1 to 6, characterized in that: The window frame structure for preventing ED sudden boiling is an integrally formed part.
9. A roller-type vehicle door window frame, characterized in that: The invention comprises a door frame upper strip and a door frame C-pillar, wherein the door frame upper strip and the door frame C-pillar are both formed with a window frame structure for preventing ED sudden boiling as claimed in any one of claims 1 to 8.
10. A vehicle, characterized in that: The invention comprises a vehicle door assembly and a rolling door window frame as claimed in claim 9 and arranged on the vehicle door assembly.