Flanging die structure of automobile side wall oil tank opening

Abstract

The flanging die structure of the automobile side wall oil tank opening comprises a lower die body and an upper die body located above the lower die body, the lower die body is provided with a flanging male die, the upper die body is provided with a flanging cutter block, the flanging male die is matched with the flanging cutter block, the flanging cutter block is matched with the automobile side wall oil tank opening, and the flanging male die is provided with a flanging male die. The flanging cutter block and the flanging male die jointly act to complete flanging of the automobile side wall oil tank opening, the flange is arranged on the edge of the flanging cutter block, in the flanging process, the flange can prevent the automobile side wall oil tank opening from shrinking, flanging is prevented from being needed from the A face of a plate, the A face of the plate is prevented from deforming, the product quality is improved, and the production cost is reduced. According to the flanging die structure of the automobile side wall oil tank opening, shrinkage of the automobile side wall oil tank opening can be avoided in the flanging process, flanging is prevented from being needed from the A face of a plate, deformation of the A face of the plate is avoided, and the product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the field of automobile side panel flanging, and specifically relates to a flanging die structure for an automobile side panel fuel tank opening. Background Art

[0002] During the mold flanging operation, the upper mold body drives the pressing core to press the sheet material, the press continues to move, and the flanging knife block contacts the sheet material synchronously to complete the flanging operation. However, when flanging the fuel tank opening of the car side panel, the fuel tank opening of the car side panel is prone to inward shrinkage, resulting in material being taken from the A side of the sheet material during flanging, causing the A side to be pulled and deformed, thereby reducing product quality.

[0003] In order to solve the above problems, the patent document with application number 202223574276X discloses a side panel fuel tank port mold ejection mechanism, including an ejection insert and an upper mold shaping insert. The lower end surface of the upper mold shaping insert is a flanging shaping pressure surface, and its lower end is inserted into the fuel tank port shaping hole. The flanging shaping pressure surface cooperates with the flanging shaping convex edge to realize the flanging shaping of the workpiece. Several ejection springs are arranged under the ejection insert. The ejection springs float and support the ejection insert located in the fuel tank port shaping hole. It can slide longitudinally in the tank port shaping hole, and the pressing die slope of the ejector insert is parallel to the flanging shaping pressing surface; the ejection mechanism is provided with an upper die shaping insert and an ejector insert on the shaping punch, which can impact and extrude the workpiece in the middle to form the tank port of the workpiece. The ejector insert is floatingly supported by the ejector spring. When demolding, after the upper die shaping insert unloads the pressing force, the ejector insert slides back to its position under the action of the ejector spring, which can generate demolding force to eject the workpiece, but it cannot solve the above problems. Utility Model Content

[0004] The present invention is designed to solve the above-mentioned problems and aims to provide a vehicle side fuel tank opening flanging die structure that can prevent the vehicle side fuel tank opening from shrinking during the flanging process, can prevent the flanging from drawing material from the A side of the sheet material, and can prevent the A side of the sheet material from being deformed. In order to achieve the above-mentioned purpose, the technical solutions adopted by the present invention are as follows:

[0005] The utility model provides a flanging die structure for the fuel tank opening of the side panel of an automobile, which has the following characteristics: it comprises a lower die body and an upper die body located above the lower die body, the lower die body is provided with a flanging punch, the upper die body is provided with a flanging knife block, the flanging punch is adapted to the flanging knife block, the flanging knife block is adapted to the fuel tank opening of the side panel of the automobile, and the edge of the flanging knife block is provided with a flange.

[0006] In the automobile side fuel tank opening flanging mold structure provided by the utility model, it can also have such a feature that the flange includes a corner flange, a first straight flange and a second straight flange, the end of the first straight flange is connected to one end of the corner flange, and the end of the second straight flange is connected to the other end of the corner flange.

[0007] The automobile side fuel tank opening flanging mold structure provided by the present invention may also have the following characteristics: the thickness of the corner flange is greater than the thickness of the first straight flange, and the thickness of the corner flange is greater than the thickness of the second straight flange.

[0008] In the automobile side fuel tank opening flanging mold structure provided by the utility model, it can also have the following characteristics: the thickness of the corner flange is 30 mm, the thickness of the first straight flange is 25 mm, the thickness of the second straight flange is 25 mm, the connection between the corner flange and the first straight flange is gradually transitioned, and the connection between the corner flange and the second straight flange is gradually transitioned.

[0009] The automobile side fuel tank opening flanging die structure provided by the present invention may also have the following features: the length of the flanging knife block is 255 mm, the width of the flanging knife block is 191 mm, and the engagement amount of the flanging knife block is 13 mm.

[0010] In the automobile side fuel tank opening flanging mold structure provided by the utility model, it can also have such a feature that the flanging punch is provided with a flanging groove adapted to the flanging knife block, and the flanging punch is provided with a first boss and a second boss, and the first boss and the second boss are respectively located on both sides of the flanging groove.

[0011] The automobile side fuel tank opening flanging die structure provided by the present invention may also have the following feature: the height of the first boss and the second boss is 0.3 mm.

[0012] The technical effect of the utility model is as follows: the automobile side panel fuel tank opening flanging mold structure provided by the utility model includes a lower mold body and an upper mold body located above the lower mold body, the lower mold body is provided with a flanging punch, and the upper mold body is provided with a flanging knife block, the flanging punch is adapted to the flanging knife block, and the flanging knife block is adapted to the automobile side panel fuel tank opening, and the flanging knife block and the flanging punch work together to complete the flanging at the automobile side panel fuel tank opening, and the edge of the flanging knife block is provided with a flange. During the flanging process, the flange can prevent the automobile side panel fuel tank opening from shrinking, avoid the flanging from taking material from the A side of the sheet, avoid deformation of the A side of the sheet, and improve product quality.

[0013] Therefore, the automobile side panel fuel tank opening flanging mold structure provided by the present invention can prevent the automobile side panel fuel tank opening from shrinking during the flanging process, avoid the flanging from taking material from the A side of the sheet, avoid the deformation of the A side of the sheet, and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] This manual includes the following drawings, which show the following contents:

[0015] Figure 1 It is a structural schematic diagram of the flanging knife block in an embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the flanging punch in an embodiment of the present utility model;

[0017] Figure 3 It is a cross-sectional view of a flanging cutter block and a flanging punch in an embodiment of the present utility model;

[0018] Figure 4 It is a structural schematic diagram of the upper mold body in an embodiment of the present utility model;

[0019] Figure 5 It is a structural schematic diagram of the lower mold body in an embodiment of the present utility model.

[0020] Marked in the figure: 10-lower die body, 20-upper die body, 30-flanging punch, 31-flanging groove, 32-first boss, 33-second boss, 40-flanging knife block, 41-flange, 411-corner flange, 412-first straight flange, 413-second straight flange. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific implementation methods of the present invention through the description of the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0022] Figure 1 It is a structural schematic diagram of the flanging knife block in an embodiment of the utility model; Figure 2 It is a structural schematic diagram of the flanging punch in an embodiment of the present utility model; Figure 3 It is a cross-sectional view of a flanging cutter block and a flanging punch in an embodiment of the present utility model; Figure 4 It is a structural schematic diagram of the upper mold body in an embodiment of the present utility model; Figure 5 It is a structural schematic diagram of the lower mold body in an embodiment of the present utility model.

[0023] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 as well as Figure 5As shown, the automobile side panel fuel tank opening flanging mold structure provided by the utility model includes a lower mold body 10 and an upper mold body 20. The upper mold body 20 is located above the lower mold body 10. The lower mold body 10 is provided with a flanging punch 30. The upper mold body 20 is provided with a flanging knife block 40. The flanging punch 30 is adapted to the flanging knife block 40. The flanging knife block 40 is adapted to the automobile side panel fuel tank opening. The flanging knife block 40 and the flanging punch 30 work together to complete the flanging at the automobile side panel fuel tank opening. The edge of the flanging knife block 40 is provided with a flange 41. During the flanging process, the flange 41 can prevent the automobile side panel fuel tank opening from shrinking, avoid the flanging from taking material from the A side of the sheet, avoid the deformation of the A side of the sheet, and improve the product quality.

[0024] The flange 41 includes a corner flange 411, a first straight flange 412 and a second straight flange 413. The end of the first straight flange 412 is connected to one end of the corner flange 411, and the end of the second straight flange 413 is connected to the other end of the corner flange 411. The two first straight flanges 412 are arranged parallel to each other, and the two second straight flanges 413 are arranged parallel to each other. The first straight flange 412 and the second straight flange 413 are perpendicular to each other, so that the flange 41 is compatible with the side fuel tank port of the car. The flange 41 is a rectangle with rounded corners at the four corners, and the four corner flanges 411 are distributed at the four corners of the flange 41. The thickness of the corner flange 411 is greater than that of the first straight flange 412, and the thickness of the corner flange 411 is greater than that of the second straight flange 413. The connection between the corner flange 411 and the first straight flange 412 is gradually transitioned, and the connection between the corner flange 411 and the second straight flange 413 is gradually transitioned, so that the corner flange 411 of the flanging knife block 40 first contacts the sheet material and gradually expands toward the middle until the entire flange 41 is in contact with the sheet material, so that the flange 41 can avoid taking material from the A side of the sheet material during the flanging process, avoid deformation of the A side of the sheet material, and improve product quality.

[0025] In this embodiment, the thickness of the corner flange 411 is 30 mm, the thickness of the first straight flange 412 is 25 mm, and the thickness of the second straight flange 413 is 25 mm. The connection between the corner flange 411 and the first straight flange 412 is gradually transitioned, and the thickness of the connection is gradually reduced from 30 mm to 25 mm. The connection between the corner flange 411 and the second straight flange 413 is gradually transitioned, and the thickness of the connection is gradually reduced from 30 mm to 25 mm, so that a smooth transition occurs from the contact of the corner flange 411 to the contact of the sheet material to the contact of the first straight flange 412 and the second straight flange 413 with the sheet material, avoiding the problem of sheet material shrinkage caused by the direct contact of the edge of the flanging knife block 40 with the sheet material, thereby avoiding shrinkage at the fuel tank port of the side panel of the car, avoiding the flanging from the A side of the sheet material, avoiding deformation of the A side of the sheet material, and improving product quality.

[0026] The length of the flanging knife block is 255mm, the distance between the two second straight flanges 413 is 255mm, the width of the flanging knife block is 191mm, the distance between the two first straight flanges 412 is 191mm, and the engagement amount of the flanging knife block is 13mm, thereby further improving the flanging effect at the fuel tank opening of the side panel of the automobile and further improving the quality of the product.

[0027] The flanging punch 30 is provided with a flanging groove 31 adapted for the flanging blade 40. It is also equipped with a first boss 32 and a second boss 33, located on either side of the flanging groove 31. The rounded corners of the fuel tank opening on the side panel of a vehicle are most susceptible to shrinkage. Therefore, the first and second bosses 32, 33 are positioned on either side of the flanging groove 31, aligning with the rounded corners of the fuel tank opening. This compensates for the flatness of the sheet metal's surface A during the flanging process, further preventing deformation. The height of the first and second bosses 32, 33 is 0.3 mm, effectively compensating for the flatness of the sheet metal's surface A.

[0028] Functions and Effects of the Embodiments

[0029] The automobile side panel fuel tank opening flanging mold structure provided by the utility model includes a lower mold body 10 and an upper mold body 20. The upper mold body 20 is located above the lower mold body 10. The lower mold body 10 is provided with a flanging punch 30. The upper mold body 20 is provided with a flanging knife block 40. The flanging punch 30 is adapted to the flanging knife block 40. The flanging knife block 40 is adapted to the automobile side panel fuel tank opening. The flanging knife block 40 and the flanging punch 30 work together to complete the flanging at the automobile side panel fuel tank opening. The edge of the flanging knife block 40 is provided with a flange 41. During the flanging process, the flange 41 can prevent the automobile side panel fuel tank opening from shrinking, prevent the flanging from taking material from the A side of the sheet material, prevent the deformation of the A side of the sheet material, and improve the product quality. The automobile side panel fuel tank opening flanging mold structure provided by the utility model can prevent the automobile side panel fuel tank opening from shrinking during the flanging process, prevent the flanging from taking material from the A side of the sheet material, and prevent the deformation of the A side of the sheet material, and improve the product quality.

[0030] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. A flanging die structure for a fuel tank opening on a side panel of an automobile, characterized in that: The invention comprises a lower die body (10) and an upper die body (20) located above the lower die body (10), wherein the lower die body (10) is provided with a flanging punch (30), and the upper die body (20) is provided with a flanging knife block (40), wherein the flanging punch (30) is adapted to the flanging knife block (40), and the flanging knife block (40) is adapted to the fuel tank port of the side panel of the automobile, and the edge of the flanging knife block (40) is provided with a flange (41).

2. The automobile side panel fuel tank opening flanging die structure according to claim 1, characterized in that: The flange (41) includes a corner flange (411), a first straight flange (412) and a second straight flange (413), wherein the end of the first straight flange (412) is connected to one end of the corner flange (411), and the end of the second straight flange (413) is connected to the other end of the corner flange (411).

3. The automobile side panel fuel tank opening flanging die structure according to claim 2, characterized in that: The thickness of the corner flange (411) is greater than the thickness of the first straight flange (412), and the thickness of the corner flange (411) is greater than the thickness of the second straight flange (413).

4. The automobile side panel fuel tank opening flanging die structure according to claim 3, characterized in that: The thickness of the corner flange (411) is 30 mm, the thickness of the first straight flange (412) is 25 mm, and the thickness of the second straight flange (413) is 25 mm. The connection between the corner flange (411) and the first straight flange (412) is gradually transitioned, and the connection between the corner flange (411) and the second straight flange (413) is gradually transitioned.

5. The automobile side panel fuel tank opening flanging die structure according to claim 4, characterized in that: The length of the flanging blade block (40) is 255 mm, the width of the flanging blade block (40) is 191 mm, and the engagement amount of the flanging blade block (40) is 13 mm.

6. The automobile side panel fuel tank opening flanging die structure according to claim 5, characterized in that: The flanging punch (30) is provided with a flanging groove (31) adapted to the flanging blade (40), and the flanging punch (30) is provided with a first boss (32) and a second boss (33), wherein the first boss (32) and the second boss (33) are respectively located on both sides of the flanging groove (31).

7. The automobile side panel fuel tank opening flanging die structure according to claim 6, characterized in that: The height of the first boss (32) and the second boss (33) is 0.3 mm.

Images