Fender flanging die

By designing a fender flanging mold that includes a fixed mold, a moving mold, and an ejection assembly, and utilizing the telescopic movement of hydraulic rods, the problem of inconvenient demolding caused by the tight contact between the fender and the fixed mold was solved, achieving an automatic demolding effect.

CN223733621UActive Publication Date: 2025-12-30QINGDAO NINGYUE PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202520178751.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2025-12-30
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

In the existing fender flanging mold, the fender is in close contact with the fixed mold during the demolding process, which makes demolding inconvenient.

Method used

A fender flanging mold was designed, comprising a fixed mold, a moving mold, a flanging module, and an ejection assembly. The automatic demolding of the fender is achieved by the extension and retraction of a hydraulic rod, preventing the fender from being upside down on the fixed mold.

Benefits of technology

Automatic demolding of the fenders was achieved, preventing the fenders from getting stuck on the fixed mold and improving demolding efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a fender flanging die, which belongs to the technical field of automobile accessory manufacturing dies, and comprises a base, a fixed die, a vertical plate, a first hydraulic rod, a movable die, a second hydraulic rod and a flanging module, the left side of the upper surface of the base is fixedly provided with the fixed die, and the right side of the upper surface of the base is fixedly provided with the vertical plate; a first hydraulic rod is mounted on the right side surface of the vertical plate, and a movable mold is fixedly arranged at the output end of the first hydraulic rod; through the arrangement of the ejection assembly, after fender flanging is completed and in the demolding process, a second hydraulic rod shrinks, the second hydraulic rod drives the flanging module to move towards the left side, the flanging module retracts into a sliding groove, the slope face of the left side of the flanging module extrudes the slope face of the bottom of the fixing plate, the fixing plate is ejected upwards, and the fender is subjected to flanging. The fixed plate drives the ejector rod to move upwards, and the ejector rod ejects the fender on the fixed mold, so that the effect of automatic demolding is achieved, the fender is prevented from being attached to or clamped on the fixed mold after being flanged, and demolding of the fender is further facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing mold technology, and in particular to a fender flanging mold. Background Technology

[0002] Fender flanging refers to the process of bending and inwardly folding the edge of a part after it has undergone specific trimming treatment during the manufacturing process of the fender (a part of the car body, usually located above the wheels, used to protect the wheels and engine and other components).

[0003] To facilitate demolding after the fender is flanged, a movable module is usually set on the mold. When processing the inner flange of the fender, the movable module moves closer to the fender and stamps the fender. After the inner flange of the fender is processed and formed, the movable module slides away from the fender, so that the fender is separated from the movable module, which makes it easier to remove the formed fender.

[0004] However, after the fixed mold and the moving mold work together to flanging the fender, the fender will be tightly attached to the fixed mold after the moving mold is detached. Although the moving mold can release the fender from the fixed mold, other parts of the fender are in close contact with the fixed mold, making it difficult to remove the fender from the fixed mold and affecting the normal demolding of the fender. Therefore, a fender flanging mold is designed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a fender flanging mold.

[0006] The technical problem to be solved by this utility model is to provide a fender flanging mold, which solves the problem in the prior art that the fender and the fixed mold are in close contact during the fender demolding process, making demolding inconvenient.

[0007] This utility model provides a fender flanging mold, including a base, a fixed mold, a vertical plate, a first hydraulic rod, a moving mold, a second hydraulic rod, and a flanging module. The fixed mold is fixedly installed on the left side of the upper surface of the base, and the vertical plate is fixedly installed on the right side of the upper surface of the base. The first hydraulic rod is installed on the right side surface of the vertical plate, and the moving mold is fixedly installed at the output end of the first hydraulic rod. A sliding groove is opened in the center of the fixed mold, and the second hydraulic rod is fixedly installed at the left end of the fixed mold. The flanging module is fixedly installed at the output end of the second hydraulic rod, and an ejection assembly is installed in the sliding groove.

[0008] Preferably, the flange module is matched with the slide groove, and the flange module slides within the slide groove.

[0009] Preferably, when the second hydraulic rod extends to its maximum length, the flange module extends out of the right end of the slide groove, and at this time the right end of the fixed mold matches the left side of the moving mold.

[0010] Preferably, the ejection assembly includes an ejection rod, a fixing plate, and a sleeve spring. The ejection rod passes through the upper inner side of the slide groove, and a fixing plate is fixedly disposed on the bottom surface of the ejection rod. A sleeve spring is fixedly disposed between the upper surface of the fixing plate and the upper surface of the slide groove.

[0011] Preferably, when the sleeve spring is in its natural extended state, the horizontal height of the upper surface of the ejector rod is equal to the horizontal height of the upper surface of the fixed mold.

[0012] Preferably, the bottom surface of the fixing plate is a slope that slopes downward to the left, and the left side of the upper surface of the flange module is a matching slope that slopes downward to the left, and the slope on the fixing plate matches the slope on the upper surface of the flange module.

[0013] Preferably, when the sleeve spring is in its natural extended state, the horizontal height of the right side of the bottom surface of the fixing plate is not lower than the horizontal height of the left side of the upper surface of the flange module.

[0014] Preferably, when the flange module is attached to the left end of the slide groove, the fixing plate is tightly attached to the left side of the upper surface of the flange module, and at this time the sleeve spring is in a compressed state, and the top horizontal height of the ejector rod is higher than the horizontal height of the upper surface of the fixed mold.

[0015] Compared with the prior art, this utility model has at least the following beneficial effects:

[0016] 1. This utility model, by setting a fixed mold, a moving mold, and a flanging module, allows the second hydraulic rod to be in its maximum extension state during the stamping process of the fender. At this time, the right side of the fixed mold matches the left side of the moving mold. Then, the fender is fitted onto the fixed mold. The first hydraulic rod extends and drives the moving mold to move to the left. The moving mold cooperates with the fixed mold to perform flanging on the fender. After flanging is completed, the second hydraulic rod retracts, causing the flanging module to retract into the slide groove. The retraction of the flanging module can prevent the fender from being upside down on the fixed mold, making it convenient for the flanged fender to be demolded from the fixed mold.

[0017] 2. This utility model, by providing an ejector assembly, allows the second hydraulic rod to retract during demolding after the fender is flanged. The second hydraulic rod drives the flange module to move to the left, and the flange module retracts into the slide groove. The left slope of the flange module presses against the slope at the bottom of the fixed plate, pushing the fixed plate upward. The fixed plate drives the ejector rod to move upward, and the ejector rod pushes the fender on the fixed mold out, achieving an automatic demolding effect. This prevents the fender from adhering to or getting stuck on the fixed mold after flanged, further facilitating the demolding of the fender. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 1 .

[0020] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model. Figure 2 .

[0021] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A.

[0022] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0023] Figure 5 This is a schematic diagram of the front cross-sectional structure of the fender flange of this utility model.

[0024] Figure 6 This is a schematic cross-sectional view of the fender of this utility model when it is flanged.

[0025] Figure 7 This is a schematic diagram of the cross-sectional structure of the fender during demolding of this utility model.

[0026] [Figure Labels]

[0027] 1. Base; 2. Fixed mold; 201. Slide groove; 3. Vertical plate; 4. First hydraulic rod; 5. Moving mold; 6. Second hydraulic rod; 7. Flanging module; 8. Ejector rod; 801. Fixing plate; 802. Sleeve spring. Detailed Implementation

[0028] Example:

[0029] like Figures 1-7 As shown, an embodiment of this utility model provides a fender flanging mold, including a base 1, a fixed mold 2, a vertical plate 3, a first hydraulic rod 4, a moving mold 5, a second hydraulic rod 6, and a flanging module 7. The fixed mold 2 is fixedly disposed on the left side of the upper surface of the base 1, and the vertical plate 3 is fixedly disposed on the right side of the upper surface of the base 1. The first hydraulic rod 4 is installed on the right side surface of the vertical plate 3. The moving mold 5 is fixedly disposed at the output end of the first hydraulic rod 4. A sliding groove 201 is provided in the center of the fixed mold 2. The second hydraulic rod 6 is fixedly disposed at the left end of the fixed mold 2. The flanging module 7 is fixedly disposed at the output end of the second hydraulic rod 6. An ejection assembly is installed in the sliding groove 201.

[0030] With a fixed mold 2, a moving mold 5, and a flanging module 7, during the stamping process of the fender, the second hydraulic rod 6 is in its maximum extension state. At this time, the right side of the fixed mold 2 matches the left side of the moving mold 5. Then, the fender is fitted onto the fixed mold 2. The first hydraulic rod 4 extends and drives the moving mold 5 to move to the left. The moving mold 5 works with the fixed mold 2 to perform flanging on the fender. After flanging is completed, the second hydraulic rod 6 retracts, causing the flanging module 7 to retract into the slide groove 201. The retraction of the flanging module 7 can prevent the fender from being upside down on the fixed mold, making it easier for the flanged fender to be demolded from the fixed mold 2.

[0031] In this embodiment, the flanging module 7 is matched with the slide groove 201, and the flanging module 7 slides in the slide groove 201, which makes it easy for the flanging module 7 to retract into the slide groove 201 and prevents the flanging module 7 from affecting the normal demolding after the flanging is flanged.

[0032] In this embodiment, when the second hydraulic rod 6 extends to its maximum length, the flanging module 7 extends out of the right end of the slide groove 201, and at this time the right end of the fixed mold 2 matches the left side of the moving mold 5, so that the moving mold 5 can cooperate with the fixed mold 2 to flanging the fender.

[0033] In this embodiment, the ejection assembly includes an ejection rod 8, a fixing plate 801, and a sleeve spring 802. The ejection rod 8 passes through the inner upper side of the slide groove 201. The fixing plate 801 is fixedly installed on the bottom surface of the ejection rod 8, and the sleeve spring 802 is fixedly installed between the upper surface of the fixing plate 801 and the upper surface of the slide groove 201.

[0034] In this embodiment, when the sleeve spring 802 is in its natural extended state, the horizontal height of the upper surface of the ejector rod 8 is equal to the horizontal height of the upper surface of the fixed mold 2, ensuring the flatness of the upper surface of the fixed mold 2 and facilitating the placement of the fender on the fixed mold 2 for flanging.

[0035] In this embodiment, the bottom surface of the fixing plate 801 is a slope that slopes downward to the left, and the left side of the upper surface of the flange module 7 is a matching slope that slopes downward to the left, and the slope on the fixing plate 801 matches the slope on the upper surface of the flange module 7.

[0036] In this embodiment, when the sleeve spring 802 is in a naturally extended state, the horizontal height of the right side of the bottom surface of the fixing plate 801 is not lower than the horizontal height of the left side of the upper surface of the flange module 7, so that the flange module 7 can be inserted into the bottom of the fixing plate 801 and the ejector rod 8 can be pushed upward through the fixing plate 801.

[0037] In this embodiment, when the flange module 7 is attached to the left end of the slide groove 201, the fixing plate 801 is attached to the left side of the upper surface of the flange module 7, and at this time the sleeve spring 802 is in a compressed state. The top horizontal height of the ejector rod 8 is higher than the upper surface horizontal height of the fixed mold 2, which makes it convenient for the ejector rod 8 to eject the fender from the fixed mold 2.

[0038] By incorporating an ejector assembly, during the demolding process after the fender is flanged, the second hydraulic rod 6 retracts, causing the flange module 7 to move to the left. The flange module 7 retracts into the slide groove 201, and the left slope of the flange module 7 presses against the bottom slope of the fixing plate 801, pushing the fixing plate 801 upward. The fixing plate 801 then moves the ejector rod 8 upward, ejecting the fender from the fixed mold 2. This achieves automatic demolding, preventing the fender from being attached to or stuck on the fixed mold 2 after flanged, further facilitating the demolding of the fender.

[0039] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A fender flanging die characterized by: The utility model provides a kind of sheet metal bending device, including base (1), fixed mould (2), vertical plate (3), first hydraulic rod (4), movable mould (5), second hydraulic rod (6) and flanging module (7), the upper surface left side of the base (1) is fixedly provided with fixed mould (2), the upper surface right side of the base (1) is fixedly provided with vertical plate (3), the right side surface of the vertical plate (3) is equipped with first hydraulic rod (4), the output end of the first hydraulic rod (4) is fixedly provided with movable mould (5), the center of the fixed mould (2) is provided with sliding slot (201), the left end of the fixed mould (2) is fixedly provided with second hydraulic rod (6), the output end of the second hydraulic rod (6) is fixedly provided with flanging module (7), and the sliding slot (201) is equipped with ejection assembly.

2. The fender flanging die according to claim 1, characterized in that: The flanging module (7) is matched with the sliding slot (201), and the flanging module (7) slides in the sliding slot (201).

3. The fender flanging die of claim 2, wherein: When the second hydraulic rod (6) is stretched to the maximum length, the flanging module (7) is stretched out of the right end of the sliding slot (201), and at this time, the right end of the fixed mould (2) is matched with the left side of the movable mould (5).

4. The fender flanging die of claim 1, wherein: The ejection assembly includes an ejection rod (8), a fixed plate (801) and a sleeved spring (802), the ejection rod (8) penetrates the inside of the sliding slot (201) from above, the bottom surface of the ejection rod (8) is fixedly provided with the fixed plate (801), and the upper surface of the fixed plate (801) and the upper surface of the sliding slot (201) are fixedly provided with the sleeved spring (802).

5. The fender flanging die of claim 4, wherein: When the sleeved spring (802) is in a natural elongation state, the upper surface of the ejection rod (8) is equal in height to the upper surface of the fixed mould (2).

6. The fender flanging die of claim 5, wherein: The bottom surface of the fixed plate (801) is inclined to the left and downward, and the left side of the upper surface of the flanging module (7) is also inclined to the left and downward, and the slope on the fixed plate (801) is matched with the slope on the upper surface of the flanging module (7).

7. The fender flanging die of claim 6, wherein: When the sleeved spring (802) is in a natural elongation state, the right side of the bottom surface of the fixed plate (801) is not lower than the left side of the upper surface of the flanging module (7).

8. The fender flanging die of claim 7, wherein: When the flanging module (7) is attached to the left end of the sliding slot (201), the fixed plate (801) is tightly attached to the left side of the upper surface of the flanging module (7), and at this time, the sleeved spring (802) is in a compressed state, and the top of the ejection rod (8) is higher than the upper surface of the fixed mould (2).