Automobile sealing strip metal framework, framework machining device and machining method

Abstract

The invention provides an automobile sealing strip metal framework and a framework machining device and method, and belongs to the technical field of automobile sealing strips, and the automobile sealing strip metal framework comprises a framework body and two fins. The bone body is provided with a plurality of first wave-shaped parts, the first wave-shaped parts are arranged at intervals in the length direction of the bone body, and all the first wave-shaped parts are bent in the length direction of the bone body; the two fins are fixedly arranged on the two sides of the rib body respectively and are provided with second wave-shaped parts, and the second wave-shaped parts are bent in the width direction of the rib body. Wherein a framework machining device is used for machining the metal framework of the automobile sealing strip. The machining method is used for machining the automobile sealing strip metal framework. According to the metal framework provided by the invention, the stretching and bending performance is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile sealing strips, and more specifically, relates to a metal frame of an automobile sealing strip, a frame processing device and a processing method. Background Art

[0002] With the development of the global automotive industry, automotive manufacturing has increasingly stringent requirements for the quality and performance of parts. As a key component to ensure vehicle sealing, sound insulation and noise reduction, as well as waterproof and dustproof, automotive sealing strips directly affect the overall performance and driving experience of the vehicle. Sealing strips are mostly made of rubber. Therefore, in order to improve the overall rigidity of the sealing strip, a metal skeleton is often embedded in the sealing strip to provide rigid support for the sealing strip, thereby maintaining the stability of the overall shape of the sealing strip.

[0003] The existing metal frame is stamped from a flat steel strip. Although the overall rigidity is good, the stretching effect is poor, and the flexibility when bending is low, resulting in poor follow-up when assembled on the vehicle, thereby affecting the effect of the sealing strip when in use. Summary of the invention

[0004] The purpose of the present invention is to provide a metal frame of an automobile sealing strip, a frame processing device and a processing method, aiming to improve the tensile and bending properties of the metal frame.

[0005] In a first aspect, the present invention provides a metal frame for an automobile sealing strip, comprising: The bone body has a plurality of first wave-shaped portions, the plurality of first wave-shaped portions are arranged at intervals along the length direction of the bone body, and each of the first wave-shaped portions is bent along the length direction of the bone body; The two fins are respectively fixedly arranged on both sides of the frame body and have a second wave-shaped portion, and the second wave-shaped portion is bent along the width direction of the frame body.

[0006] In a possible implementation, the fin includes a plurality of fin units evenly distributed along the length direction of the frame body, a notch is formed between every two adjacent fin units, and the plurality of notches correspond one-to-one to the positions of the plurality of first wave-shaped portions.

[0007] In a possible implementation, extension portions are integrally formed on both sides of the fin unit, and the extension portions are bent in a direction perpendicular to the fin unit, and the bending directions of the two extension portions on the same fin unit are opposite.

[0008] In a possible implementation manner, a plurality of first bending holes are formed on the first wave-shaped portion, and the plurality of first bending holes are arranged along a width direction of the bone shaft.

[0009] In a possible implementation manner, a plurality of second bending holes are formed on the bone shaft, and the plurality of second bending holes are arranged along the length direction of the bone shaft and are alternately arranged with the first wave-shaped portions.

[0010] Compared with the prior art, the metal skeleton of the automobile sealing strip provided by the present invention has the following beneficial effects: the first corrugated portion increases the elastic deformation capacity of the metal skeleton in the length direction. When the sealing strip is stretched, the first corrugated portion can absorb stress by deformation, thereby avoiding local fracture or plastic deformation caused by excessive rigidity of the traditional flat steel strip, and significantly improving the stretching effect. At the same time, when the first corrugated portion is bent, the spacing between adjacent crests and troughs can be changed to achieve local deformation concentration, thereby reducing the rigidity constraint of the overall skeleton.

[0011] The second corrugated portion can compensate for the dimensional fluctuation of the vehicle body through lateral deformation when the sealing strip is installed, and can also adjust the contact pressure in the width direction of the sealing strip through compression or extension of the second corrugated portion to ensure sealing.

[0012] The first corrugated portion and the second corrugated portion also improve the tightness of the connection between the metal frame and the rubber of the sealing strip, thereby increasing the contact area between the metal frame and the rubber of the sealing strip, ensuring that the metal frame is not likely to slip out of the sealing strip when the sealing strip is bent and deformed.

[0013] In a second aspect, the present invention further provides a skeleton processing device, comprising: body; A lower die is fixedly arranged on the fuselage and is provided with a stamping notch matching the shape of the notch; Two support members are respectively and horizontally slidably arranged on the upper surface of the lower die; parts of the support members extend into the stamping notch, and the parts extending into the stamping notch match the shape of the extension part; An upper die is lifted and arranged on the machine body; the upper die matches the shape of the punching notch, and has avoidance grooves on both sides for avoiding the two support members; the upper die has a punching stroke and a bending stroke; A bending part, which is horizontally slidably arranged on the upper mold and has a lower bending part and an upper bending part; Wherein, during the punching stroke, the two support members extend out, so that when the upper die falls, a notch and two extensions are punched on the steel strip; During the bending stroke, the two support members are retracted, and the lower bending portion and the upper bending portion are alternately extended, so that when the upper mold falls, one of the extension portions is bent downward by the lower bending portion, and when the upper mold rises, the other extension portion is bent upward by the upper bending portion.

[0014] In a possible implementation, the support member includes: A support block is horizontally slidably disposed on the lower die and has ferromagnetism; A first spring, two ends of which are respectively fixed to the support block and the lower die; A first electromagnet is fixedly arranged on the lower die; Wherein, when the first electromagnet is energized, the support block is retracted into the lower mold; When the first electromagnet is powered off, the support block extends out from the lower mold under the action of the first spring.

[0015] In a possible implementation, the bending part includes: A bending block is horizontally slidably arranged on the upper mold, and its two ends are respectively the lower bending part and the upper bending part; the bending block has ferromagnetism; A second spring, two ends of which are respectively fixed to the bending block and the upper die; A second electromagnet is fixedly arranged on the upper mold; Wherein, when the second electromagnet is energized, the lower bending portion extends out from the upper die; When the second electromagnet is powered off, the upper bending portion extends out from the upper die under the action of the second spring.

[0016] In a possible implementation, the skeleton processing device further includes: Two positioning members are respectively arranged on both sides of the upper mold and correspond to the lower bending portion and the upper bending portion respectively; the positioning members have elastic freedom in the vertical direction; Wherein, during the bending stroke, the positioning member always presses the fin unit against the lower mold, so that the fin unit remains flat during the bending process of the extension portion.

[0017] Compared with the prior art, the skeleton processing device provided by the present invention has the following beneficial effects: during the stamping stroke, the support member extends into the stamping notch to provide partial support for the steel strip, and the upper die presses down once to form a notch and extensions on both sides of the steel strip. During the bending stroke, the support member retracts and vacates the bending space, and the lower bending part and the upper bending part of the bending member move alternately, respectively using the upper die to press down and return to complete the downward and upward bidirectional bending, replacing the traditional multi-station sequential processing, and significantly improving the processing efficiency.

[0018] In a third aspect, the present invention further provides a method for processing a metal skeleton of an automobile sealing strip, comprising the following steps: Step 1: stamping both sides of the steel strip to form a combination of the frame and the two fins; Step 2: punching out the second corrugated portion on the two fins; Step 3: punching out the first wave-shaped portions at intervals along the length direction of the bone body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the overall structure of a metal skeleton of a car sealing strip provided by an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A; Figure 3 A schematic diagram of the overall structure of a skeleton processing device provided in an embodiment of the present invention; Figure 4 A schematic diagram of the overall structure of the lower mold provided by an embodiment of the present invention; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of part B; Figure 6 A schematic diagram of the overall structure of the upper mold provided by an embodiment of the present invention; Figure 7 for Figure 6 A schematic diagram of the enlarged structure of the middle C part; Figure 8 A cross-sectional view of a skeleton processing device provided by an embodiment of the present invention; Fig. 9 for Figure 8 Schematic diagram of the enlarged structure of part D.

[0021] In the figure: 11, frame; 111, first corrugated portion; 112, first bending hole; 113, second bending hole; 12, fin; 121, second corrugated portion; 122, fin unit; 123, notch; 124, extension portion; 2, fuselage; 3, lower die; 31, stamping notch; 4, support member; 41, support block; 42, first spring; 43, first electromagnet; 5, upper die; 51, avoidance groove; 6, bending member; 61, lower bending portion; 62, upper bending portion; 63, bending block; 64, second spring; 65, second electromagnet; 7, positioning member; 71, positioning block; 72, third spring; 8, steel belt. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] See also Figure 1 , a metal skeleton of an automobile sealing strip provided by the present invention is now described. A metal skeleton of an automobile sealing strip comprises a body 11 and two fins 12. The body 11 has a plurality of first corrugated portions 111, the plurality of first corrugated portions 111 are arranged at intervals along the length direction of the body 11, and each first corrugated portion 111 is bent along the length direction of the body 11. The two fins 12 are respectively fixedly arranged on both sides of the body 11, and have a second corrugated portion 121, and the second corrugated portion 121 is bent along the width direction of the body 11.

[0024] The first wave-shaped portion 111 is bent along the length direction of the frame 11, so that the frame 11 has the ability to stretch and deform in the length direction, which significantly improves the problem of insufficient tensile performance. At the same time, when the first wave-shaped portion 111 is bent, the distance between adjacent crests and troughs can be changed to achieve local deformation concentration, reduce the rigidity constraint of the overall frame, and help the frame adapt to the curvature differences of different models, so that the frame and the body fit better.

[0025] The second corrugated portion 121 can compensate for the dimensional fluctuation of the vehicle body through lateral deformation when the sealing strip is installed, and can also adjust the contact pressure in the width direction of the sealing strip through compression or extension of the second corrugated portion 121 to ensure sealing.

[0026] In some embodiments, see Figure 1 The fin 12 includes a plurality of fin units 122 evenly distributed along the length direction of the frame body 11 , a notch 123 is formed between every two adjacent fin units 122 , and the plurality of notches 123 correspond to the positions of the plurality of first wave-shaped portions 111 one by one.

[0027] The notch 123 divides the fin 12 into a plurality of independent deformation units, reducing the overall rigidity of the fin 12, which is conducive to the bending and deformation of the frame 11. The notch 123 corresponds to the position of the first waveform 111, ensuring that when the frame 11 bends at the position of the first waveform 111, it will not affect the fin unit 122, which is conducive to the bending and deformation of the frame 11, so as to better fit the body. In addition, after the rubber is coated on the outside of the frame to form a sealing strip, the rubber filled in the notch 123 forms a buffer zone, which can absorb the vibration energy of the door when the sealing strip is in use.

[0028] In some embodiments, see Figure 1 and Figure 2The two sides of the fin unit 122 are integrally formed with extension parts 124 , and the extension parts 124 are bent in a direction perpendicular to the fin unit 122 . The bending directions of the two extension parts 124 on the same fin unit 122 are opposite.

[0029] The extension 124 is vertically bent and embedded in the rubber to form a mechanical anchoring structure, which enhances the bonding strength between the fin and the rubber and ensures the stability of the overall structure of the sealing strip. The two extensions 124 are bent in opposite directions. When the sealing strip is injected, the rubber penetrates into the gap of the extension and solidifies, forming a two-way bite structure, which can prevent the sealing failure caused by interface peeling between the fin unit 122 and the rubber.

[0030] In some embodiments, see Figure 1 The first wave-shaped portion 111 is provided with a plurality of first bending holes 112 , and the plurality of first bending holes 112 are arranged along the width direction of the bone shaft 11 .

[0031] The first bending hole 112 can reduce the weight of the frame 11, thereby meeting the requirement of lightweight frame. At the same time, when the sealing strip is injected, the rubber filled in the first bending hole 112 forms an elastic node, which is conducive to the bending deformation of the frame 11, so that the sealing strip fits better with the vehicle body.

[0032] In some embodiments, see Figure 1 The bone body 11 is provided with a plurality of second bending holes 113 , which are arranged along the length direction of the bone body 11 and are alternately arranged with the first wave-shaped portions 111 .

[0033] The second bending holes 113 can reduce the weight of the frame 11, thereby meeting the requirement of lightweight frame. At the same time, the second bending holes 113 are distributed between adjacent first wave-shaped portions 111, so that the frame 11 is more easily bent and deformed when it is fitted on the vehicle body, which is beneficial for the frame 11 to fit on the vehicle body, thereby ensuring the tracking performance of the sealing strip when it is installed on the vehicle body.

[0034] In summary, the present invention provides a metal skeleton of an automobile sealing strip. Compared with the prior art, the first corrugated portion 111 increases the elastic deformation capacity of the metal skeleton in the length direction. When the sealing strip is stretched, the first corrugated portion 111 can absorb stress through deformation, avoiding local fracture or plastic deformation caused by excessive rigidity of traditional flat steel strips, and significantly improving the stretching effect. At the same time, when the first corrugated portion 111 is bent, the local deformation concentration can be achieved by changing the spacing between adjacent wave crests and wave troughs, thereby reducing the rigidity constraint of the overall skeleton.

[0035] The second corrugated portion 121 can compensate for the dimensional fluctuation of the vehicle body through lateral deformation when the sealing strip is installed, and can also adjust the contact pressure in the width direction of the sealing strip through compression or extension of the second corrugated portion 121 to ensure sealing.

[0036] The first corrugated portion 111 and the second corrugated portion 121 also enhance the tightness of the connection between the metal frame and the rubber of the sealing strip, thereby increasing the contact area between the metal frame and the rubber of the sealing strip, thereby ensuring that the metal frame is not likely to slip out of the sealing strip when the sealing strip is bent and deformed.

[0037] See also Figures 3 to 9 The embodiment of the present invention further discloses a skeleton processing device for processing a notch 123 and two extensions 124 with opposite bending directions on a steel strip. The skeleton processing device includes a body 2, a lower die 3, two support members 4, an upper die 5 and a bending member 6.

[0038] Among them, see Figure 4 and Figure 5 The lower die 3 is fixedly arranged on the body 2 and is provided with a stamping notch 31 matching the shape of the notch 123. Two support members 4 are horizontally slidably arranged on the upper surface of the lower die 3. Parts of the support members 4 extend into the stamping notch 31, and the part extending into the stamping notch 31 matches the shape of the extension 124.

[0039] See also Figure 6 and Figure 7 The upper die 5 is lifted and lowered on the body 2. The upper die 5 matches the shape of the punching notch 31, and has escape grooves 51 on both sides for escaping the two support members 4. The upper die 5 has a punching stroke and a bending stroke. The bending member 6 is horizontally slidably arranged on the upper die 5, and has a lower bending portion 61 and an upper bending portion 62.

[0040] During the punching stroke, the two support members 4 extend so that when the upper die 5 falls, a notch 123 and two extensions 124 are punched on the steel strip 8. During the bending stroke, the two support members 4 are retracted, and the lower bending portion 61 and the upper bending portion 62 extend alternately, so that when the upper die 5 falls, one extension 124 is bent downward by the lower bending portion 61, and when the upper die 5 rises, the other extension 124 is bent upward by the upper bending portion 62.

[0041] It should be understood that the lifting of the upper mold 5 is controlled by a driving member disposed on the fuselage 2, and the driving member is electrically connected to a control system disposed on the fuselage 2, so as to accurately control the lifting of the upper mold 5. The driving member may be a hydraulic cylinder.

[0042] The lower die 3 is fixed on the fuselage 2, and the punching notch 31 matches the shape of the frame notch 123 to be processed, which provides an accurate mold cavity for the punching of the steel strip 8. During the punching process, the steel strip 8 is placed on the lower die 3, which can ensure that the shape of the punched notch 123 meets the design requirements.

[0043] During the stamping stroke, the support member 4 extends out, and at this time, the steel strip 8 is placed on the lower die 3, and the upper die 5 begins to fall. The upper die 5 matches the shape of the stamping notch 31, and in the process of falling, it works together with the lower die 3 to stamp a notch 123 and two extensions 124 on the steel strip 8. Due to the supporting effect of the support member 4, the shape accuracy of the extension 124 during the stamping process can be guaranteed to avoid deformation caused by uneven force. The avoidance groove 51 of the upper die 5 can avoid the two support members 4, ensuring that the upper die 5 can fall smoothly to complete the stamping action without interfering with the support member 4.

[0044] When entering the bending stroke, the two support members 4 are retracted to make room for the subsequent bending operation. When the lower bending portion 61 is extended, the upper bending portion 62 is in a state of being retracted into the upper die 5. At this time, the upper die 5 continues to fall, and the lower bending portion 61 bends one extension portion 124 downward. Then, the upper die 5 starts to rise from the lowest point of the fall, the upper bending portion 62 is extended, the lower bending portion 61 is retracted into the upper die 5, and the upper bending portion 62 bends the other extension portion 124 upward.

[0045] The alternating action of the punching stroke and the bending stroke realizes the integrated processing of the punching of the notch 123, the forming and the bending of the extension part 124, which significantly shortens the processing time of the skeleton and improves the processing efficiency of the skeleton.

[0046] In some embodiments, see Figure 5 and Fig. 9 The support member 4 includes a support block 41, a first spring 42 and a first electromagnet 43. The support block 41 is horizontally slidably arranged on the lower mold 3 and has ferromagnetism. The two ends of the first spring 42 are respectively fixed to the support block 41 and the lower mold 3. The first electromagnet 43 is fixedly arranged on the lower mold 3.

[0047] When the first electromagnet 43 is powered on, the support block 41 is retracted into the lower mold 3. When the first electromagnet 43 is powered off, the support block 41 is extended out of the lower mold 3 under the action of the first spring 42.

[0048] It should be understood that the first electromagnet 43 is electrically connected to a control system provided on the fuselage 2 , and the control system controls the on and off of the first electromagnet 43 , thereby ensuring the coordination of the first electromagnet 43 and the upper mold 5 in the lifting action.

[0049] It should be noted that the upper surface of the support block 41 is coplanar with the upper surface of the lower mold 3. A slider (not shown in the figure) is provided on the support block 41, and a slide groove (not shown in the figure) is provided on the lower mold 3. The movement of the support block 41 is guided and limited by the cooperation of the slider and the slide groove, so as to prevent the support block 41 from being separated from the lower mold 3 during movement.

[0050] The first electromagnet 43 is fixed on the lower mold 3. When the first electromagnet 43 is energized, the magnetic field generated by the first electromagnet 43 generates an attractive force on the ferromagnetic support block 41, so that the support block 41 overcomes the elastic force of the first spring 42 and is retracted into the lower mold 3, thereby providing space for the bending operation and preventing the support block 41 from obstructing the bending process of the extension portion 124.

[0051] When the first electromagnet 43 is powered off, the support block 41 extends from the lower die 3 under the elastic force of the first spring 42. Before the stamping stroke begins, the control system controls the first electromagnet 43 to be powered off, and the support block 41 extends into the stamping notch 31 to provide precise support for the stamping of the steel strip 8, ensuring that the stamped extension 124 has an accurate shape. By cooperating with the electromagnet and the spring, the telescopic action of the support block 41 can be accurately and quickly controlled, which improves the automation degree of the processing process and the accuracy of the operation, thereby improving the overall performance and processing efficiency of the skeleton processing device.

[0052] In some embodiments, see Fig. 9 The bending member 6 includes a bending block 63, a second spring 64 and a second electromagnet 65. The bending block 63 is horizontally slidably arranged on the upper die 5, and the two ends are respectively a lower bending portion 61 and an upper bending portion 62. It should be noted that the bending block 63 has ferromagnetism. The two ends of the second spring 64 are respectively fixed to the bending block 63 and the upper die 5. The second electromagnet 65 is fixedly arranged on the upper die 5.

[0053] When the second electromagnet 65 is powered on, the lower bending portion 61 extends out of the upper die 5. When the second electromagnet 65 is powered off, the upper bending portion 62 extends out of the upper die 5 under the action of the second spring 64.

[0054] It should be understood that the second electromagnet 65 is electrically connected to the control system provided on the fuselage 2, and the control system controls the on and off of the second electromagnet 65, thereby ensuring the coordination of the second electromagnet 65 and the upper mold 5 in the lifting action.

[0055] The second electromagnet 65 is fixed on the upper die 5. When the second electromagnet 65 is energized, the generated magnetic field attracts the ferromagnetic bending block 63, so that the lower bending portion 61 overcomes the elastic force of the second spring 64 and extends from the upper die 5. During the bending stroke, when an extension portion 124 needs to be bent downward, the control system controls the second electromagnet 65 to be energized, and the lower bending portion 61 quickly extends. As the upper die 5 falls, the lower bending portion 61 bends the extension portion 124 downward.

[0056] When the upper mold 5 rises and the other extension part 124 needs to be bent upward, the control system controls the second electromagnet 65 to cut off the power, and the upper bending part 62 extends under the action of the second spring 64, so that the upper bending part 62 completes the upward bending of the extension part 124 during the rising process.

[0057] In some embodiments, see Figure 7 and Figure 8 A skeleton processing device further includes two positioning members 7. The two positioning members 7 are respectively arranged on both sides of the upper mold 5 and correspond to the lower bending portion 61 and the upper bending portion 62 respectively. The positioning members 7 have elastic freedom in the vertical direction. During the bending stroke, the positioning members 7 always press the fin unit 122 against the lower mold 3, so that the fin unit 122 remains flat during the bending process of the extension portion 124.

[0058] The two positioning members 7 are respectively arranged on both sides of the upper mold 5 and correspond to the lower bending portion 61 and the upper bending portion 62 respectively. The positioning members 7 have elastic freedom in the vertical direction.

[0059] For details, see Figure 7 and Figure 8 The positioning member 7 includes a positioning block 71 and a third spring 72. The positioning block 71 is vertically slidably arranged on the upper mold 5. The two ends of the third spring 72 are respectively fixed to the upper mold 5 and the positioning block 71. When the third spring 72 is in a natural state, the lower surface of the positioning block 71 is coplanar with the lower surface of the upper mold 5.

[0060] During the stamping stroke, the positioning member 7 falls together with the upper die 5, and the positioning block 71 presses against the steel strip 8, pressing the steel strip 8 against the lower die 3. The positioning block 71 avoids the position of the extension 124, ensuring that the positioning block 71 does not interfere with the extension 124 when the extension 124 is bent. At the same time, the positioning block 71 presses against the formed fin unit 122, which can ensure that the fin unit 122 will not bend during the bending process of the extension 124, thereby ensuring the flatness of the fin unit 122.

[0061] In summary, compared with the prior art, the skeleton processing device provided by the present invention has the following characteristics: during the stamping stroke, the support member 4 extends into the stamping notch 31 to provide partial support for the steel strip 8, and the upper die 5 presses down once to form the notch 123 and the extensions 124 on both sides on the steel strip 8. During the bending stroke, the support member 4 is retracted to free up the bending space, and the lower bending part 61 and the upper bending part 62 of the bending member 6 act alternately, respectively using the upper die 5 to press down and return to complete the downward and upward bidirectional bending, replacing the traditional multi-station sequential processing, and significantly improving the processing efficiency.

[0062] The embodiment of the present invention also discloses a method for processing a metal skeleton of an automobile sealing strip, comprising the following steps: Step 1: Punch both sides of the steel strip 8 to form a combination of the body 11 and the two fins 12 .

[0063] Step 2: stamping out the second corrugated portion 121 on the two fins 12 .

[0064] Step 3: stamping out first wave-shaped portions 111 at intervals along the length direction of the frame 11 .

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A metal frame for automobile sealing strip, characterized in that: include: A bone body (11) having a plurality of first wave-shaped portions (111), wherein the plurality of first wave-shaped portions (111) are arranged at intervals along the length direction of the bone body (11), and each of the first wave-shaped portions (111) is bent along the length direction of the bone body (11); The two fins (12) are respectively fixedly arranged on both sides of the frame body (11) and have a second wave-shaped portion (121), wherein the second wave-shaped portion (121) is bent along the width direction of the frame body (11).

2. The metal frame of an automobile sealing strip according to claim 1, characterized in that: The fin (12) comprises a plurality of fin units (122) uniformly distributed along the length direction of the frame body (11), a notch (123) is formed between each two adjacent fin units (122), and the plurality of notches (123) correspond one-to-one to the positions of the plurality of first wave-shaped portions (111).

3. The metal frame of an automobile sealing strip as claimed in claim 2, characterized in that: Extension portions (124) are integrally formed on both sides of the fin unit (122), and the extension portions (124) are bent in a direction perpendicular to the fin unit (122), and the bending directions of the two extension portions (124) located on the same fin unit (122) are opposite.

4. The metal frame of an automobile sealing strip as claimed in claim 1, characterized in that: A plurality of first bending holes (112) are provided on the first wave-shaped portion (111), and the plurality of first bending holes (112) are arranged along the width direction of the bone body (11).

5. The metal frame of an automobile sealing strip as claimed in claim 1, characterized in that: The frame body (11) is provided with a plurality of second bending holes (113), and the plurality of second bending holes (113) are arranged along the length direction of the frame body (11) and are arranged alternately with the first wave-shaped portions (111).

6. A skeleton processing device, applied to the metal skeleton of the automobile sealing strip as claimed in claim 3, characterized in that: include: Fuselage (2); A lower die (3) is fixedly arranged on the body (2) and is provided with a stamping notch (31) matching the shape of the notch (123); Two support members (4) are respectively slidably arranged horizontally on the upper surface of the lower die (3); a portion of the support member (4) extends into the stamping notch (31), and the portion extending into the stamping notch (31) matches the shape of the extension portion (124); An upper die (5) is arranged on the body (2) in a lifting manner; the upper die (5) matches the shape of the punching notch (31), and is provided with avoidance grooves (51) on both sides for avoiding the two support members (4); the upper die (5) has a punching stroke and a bending stroke; A bending part (6) is horizontally slidably arranged on the upper mold (5) and comprises a lower bending part (61) and an upper bending part (62); Wherein, during the punching stroke, the two support members (4) extend out, so that when the upper die (5) falls, a notch (123) and two extension portions (124) are punched on the steel strip (8); During the bending stroke, the two support members (4) are retracted and the lower bending portion (61) and the upper bending portion (62) are alternately extended, so that when the upper mold (5) falls, one of the extension portions (124) is bent downward by the lower bending portion (61), and when the upper mold (5) rises, the other of the extension portions (124) is bent upward by the upper bending portion (62).

7. A skeleton processing device as claimed in claim 6, characterized in that: The support member (4) comprises: A support block (41) is horizontally slidably disposed on the lower mold (3) and has ferromagnetism; A first spring (42), two ends of which are respectively fixed to the support block (41) and the lower mold (3); A first electromagnet (43) fixedly disposed on the lower mold (3); Wherein, when the first electromagnet (43) is energized, the support block (41) is retracted into the lower mold (3); When the first electromagnet (43) is powered off, the support block (41) extends out from the lower mold (3) under the action of the first spring (42).

8. A skeleton processing device as claimed in claim 6, characterized in that: The bending part (6) comprises: A bending block (63) is horizontally slidably arranged on the upper mold (5), and has two ends respectively comprising the lower bending portion (61) and the upper bending portion (62); the bending block (63) is ferromagnetic; A second spring (64), two ends of which are respectively fixed to the bending block (63) and the upper die (5); A second electromagnet (65) is fixedly arranged on the upper mold (5); Wherein, when the second electromagnet (65) is energized, the lower bending portion (61) extends out from the upper mold (5); When the second electromagnet (65) is powered off, the upper bent portion (62) extends out from the upper die (5) under the action of the second spring (64).

9. A skeleton processing device as claimed in claim 6, characterized in that: The skeleton processing device also includes: Two positioning members (7) are respectively arranged on both sides of the upper mold (5) and correspond to the lower bending portion (61) and the upper bending portion (62) respectively; the positioning members (7) have elastic freedom in the vertical direction; Wherein, during the bending stroke, the positioning member (7) always presses the fin unit (122) against the lower die (3), so that the fin unit (122) remains flat during the bending process of the extension portion (124).

10. A method for processing a metal frame of an automobile sealing strip, applied to the metal frame of an automobile sealing strip as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: stamping both sides of the steel strip (8) to form a combination of the frame (11) and the two fins (12); Step 2: punching out the second corrugated portion (121) on the two fins (12); Step three: punching out the first wave-shaped portions (111) at intervals along the length direction of the frame body (11).

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