Bending die structure

Abstract

A bending die structure comprises a bending female die body, the top of the bending female die body is provided with a groove structure extending in the length direction of the bending female die body, and the side portion of the bending female die body in the width direction is provided with an avoiding structure. The receding structure extends in the height direction of the bending female die body from the position, close to the groove structure, of the top of the bending female die body, and the receding structure is used for receding a bent edge bent in the width direction of the bending female die body. According to the bending die structure, the avoiding structure is arranged on the side portion of the bending female die body in the width direction, and the position of the avoiding structure corresponds to the connecting corner area of the door frame inner frame, so that the interference influence of the bending edge near the connecting corner when the bending female die body and the door frame inner frame are subjected to edge folding is eliminated; therefore, adverse effects caused by cutting type sharp edges generated by the inner frame of the door frame are eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of door panel bending moulds, in particular to a bending mould structure. Background Art

[0002] Existing pump car door panels use Figure 1 The universal straight-edge bending die shown, i.e., a rectangular die, adopts the die combination die technology. By adjusting the combination of the single dies, bending of different side lengths can be achieved. The bending material needs to leave a gap of the die width to prevent die interference.

[0003] In the prior art, when a general straight-edge bending mold is used to bend the inner frame of a door frame, bending notches will be generated in the areas on the two pairs of sides in the width direction of the inner frame of the door frame close to the two pairs of sides in the length direction. When the four sides of the inner frame are bent, the bending edges will be interfered with, and the four-side bending cannot be achieved. Only two pairs of sides can be bent, and the other two pairs of sides are laser cut and then re-welded with built-in L-shaped ribs.

[0004] Therefore, the door frame inner frame bending method in the prior art results in the sharp edges of the two non-bending opposite sides being exposed, the edge effect of the door frame edge coating forming an insufficient anti-corrosion ability, and the serious deformation of the welding points and the poor surface quality of the door frame. Utility Model Content

[0005] In view of this, the utility model provides a bending mold structure, in which an avoidance structure is arranged on the side of the bending die body in the width direction, and the position of the avoidance structure corresponds to the joint corner area of ​​the door frame inner frame, thereby eliminating the interference effect of the bending edge near the joint corner when the bending die body and the door frame inner frame are folded, thereby eliminating the adverse effects caused by the cutting-type sharp edges of the door frame inner frame.

[0006] The utility model provides a bending mold structure, including a bending die body, a groove structure extending along the length direction of the bending die body is provided on the top of the bending die body, and a avoidance structure is provided on the side of the bending die body in the width direction. The avoidance structure extends from the top of the bending die body close to the groove structure along the height direction of the bending die body, and the avoidance structure is used to avoid the bending edge bent along the width direction of the bending die body.

[0007] In one embodiment, the avoidance structure is disposed on one side of the bending die body in the width direction.

[0008] In one embodiment, the avoidance structures are respectively arranged on both sides of the bending die body in the width direction.

[0009] In one embodiment, the avoidance structure is a triangular cutout structure.

[0010] In one embodiment, the angle between the inclined surface of the triangular cutout structure and the outer side surface in the width direction of the bending die body is 45 to 60°, the dimension of the triangular cutout structure along the width direction of the bending die body is 15 to 25 mm, and the height between the bottom of the triangular cutout structure and the bottom of the groove structure is 20 to 40 mm.

[0011] In one embodiment, an inclined portion is provided on the outer side of the bending die body close to the avoidance structure, and the inclined portion is used to avoid the bending edge bent along the width direction of the bending die body.

[0012] In one embodiment, a first plane extending downward from the top of the bending die body is provided on the outer side of the bending die body near the avoidance structure, the inclined surface at the top of the inclined portion is connected to the first plane, and the angle between the first plane and the inclined surface at the top of the inclined portion is an obtuse angle.

[0013] In one embodiment, the inclined surface at the top of the inclined portion extends along the inclined surface of the groove structure.

[0014] In one embodiment, a second plane connected to the inclined surface of the top of the inclined portion is further provided on the outer bottom of the bending die body near the avoidance structure, and both the first plane and the second plane extend along the height direction of the bending die body.

[0015] In one embodiment, a positioning groove is provided at the bottom of the bending die body, and the positioning groove is used for fixing and installing the bending die body.

[0016] The utility model provides a bending die structure, in which an avoidance structure is arranged on the side of the width direction of the bending die body. The bending die structure is combined with the die of an existing general straight-edge bending die, and the die is respectively arranged at both ends of the combined die structure, so as to realize a combination of various lengths of the combined die structure, thereby realizing the flexibility of the combined die structure, so that the position of the avoidance structure corresponds to the edge corner area of ​​the door frame inner frame, thereby eliminating the interference effect of the bending edge near the edge corner when the bending die body and the door frame inner frame are folded, thereby eliminating the generation of a cut-type sharp edge of the door frame inner frame and the exposure of the sharp edges of two cut-type opposite edges, the edge effect formed by the door frame edge coating, the insufficient corrosion resistance, the serious deformation of the welding point, and the poor surface quality of the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1The figure schematically shows the die structure of a straight edge bending die in the prior art.

[0019] Figure 2 The bending principle of the inner frame of the door panel in the embodiment of the utility model is schematically shown.

[0020] Figure 3 The overall structure of the first bending die body in the embodiment of the utility model is schematically shown.

[0021] Figure 4 The top view structure of the first bending die body in the embodiment of the utility model is schematically shown.

[0022] Figure 5 The overall structure of the second bending die body in the embodiment of the utility model is schematically shown.

[0023] Figure 6 The top view structure of the second bending die body in the embodiment of the utility model is schematically shown.

[0024] Figure 7 The combined mold structure in the embodiment of the utility model is schematically shown.

[0025] Figure 8 The first and second methods for processing the bending die body in the embodiments of the present utility model are schematically shown. DETAILED DESCRIPTION

[0026] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description 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.

[0027] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "disposed", "provided with", "installed", "connected" and the like should be understood in a broad sense, for example, it 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. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The terms "upper", "width", "length", "height", "bottom", "outside", "side", "top" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0029] The terms "first", "second", etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0030] The term "comprise", "comprising", or any other variation thereof, is intended to cover a non-exclusive inclusion of elements other than those listed and may also include other elements not expressly listed.

[0031] like Figures 2 to 6 As shown, the bending mold structure of the embodiment of the utility model includes a bending die body 11, the top of the bending die body 11 is provided with a groove structure 12 extending along the length direction of the bending die body 11, the groove structure 12 is used to avoid the bending edge 101 bent along the length direction of the bending die body 11, the side of the width direction of the bending die body 11 is provided with an avoidance structure 13, the avoidance structure 13 extends from the top of the bending die body 11 close to the groove structure 12 along the height direction of the bending die body 11, and the avoidance structure is used to avoid the bending edge 101 bent along the width direction of the bending die body 11.

[0032] Specifically, Figures 3 to 7 As shown, in the present embodiment, the avoidance structure 13 is arranged on one side of the width direction of the bending die body 11, so that the first bending die body 11 and the second bending die body 11 in the bending die structure of the embodiment of the utility model can be flexibly combined with the existing straight-edge bending die to form a combined die structure, and the first bending die body 11 and the second bending die body 11 in the bending die structure of the embodiment of the utility model are respectively arranged at both ends of the combined die structure, and the existing universal straight-edge bending die is arranged in the middle of the combined die structure, which can realize bending of any side length, so that the combined die structure has universal applicability and can be adjusted according to the size of the door frame to avoid processing the entire die. When the inner frame of the door panel is bent, one pair of sides can be bent in steps first, and then the other pair of sides can be bent in steps. Therefore, the number of adjustments to the combined die structure can be minimized to improve efficiency.

[0033] like Figure 2 and Figure 7As shown, the bending mold structure provided by the embodiment of the utility model is provided with an avoidance structure 12 on the side of the width direction of the bending die body 11, and the bending mold structure is combined with the die of the existing general straight-edge bending mold, and is respectively arranged at both ends of the combined mold structure to realize a combination of various lengths of the combined mold structure, thereby realizing the flexibility of the combined mold structure, so that the position of the avoidance structure 12 corresponds to the edge corner 102 area of ​​the door frame inner frame 100, prompting the bending line 103 to extend completely to the vertex of the edge corner 102, thereby eliminating the interference effect of the bending edge 101 near the edge corner 102 when the bending die body 11 and the door frame inner frame 100 are folded, thereby eliminating the generation of cutting sharp edges of the door frame inner frame 100 and the exposure of the sharp edges of the two cutting opposite edges, the edge effect of the door frame edge coating, the insufficient corrosion resistance, the serious deformation of the welding point, and the poor surface quality of the door frame.

[0034] Specifically, Figures 3 to 6 As shown, in this embodiment, the avoidance structure 13 is a triangular cutout structure. Preferably, in this embodiment, the angle a between the inclined surface 131 of the triangular cutout structure and the outer side surface 111 of the bending die body 11 in the width direction is 45 to 60°, preferably 34°, the dimension h1 of the triangular cutout structure along the width direction of the bending die body 11 is 15 to 25 mm, and the height h2 between the bottom of the triangular cutout structure and the bottom of the groove structure 12 is 20 to 40 mm. Specifically, the above structural dimensions of the triangular cutout structure can ensure that the interference between the bending die and the bending edge 101 during the bending process of the edge angle 102 is eliminated without affecting the structural stability of the bending die body.

[0035] Specifically, Figure 3 , Figure 4 and Figure 8 As shown, in the present embodiment, an inclined portion 14 is provided on the outer side of the bending die body 11 near the avoidance structure 13, and the inclined portion 14 is used to avoid the bending edge 101 bent along the width direction of the bending die body 11. Specifically, in the present embodiment, a first plane 112 extending downward from the top of the bending die body 11 is provided on the outer side of the bending die body 11 near the avoidance structure 13, and the inclined surface 141 at the top of the inclined portion 14 is connected to the first plane 112, and the angle b between the first plane 112 and the inclined surface 141 at the top of the inclined portion 14 is an obtuse angle. Specifically, in the present embodiment, the inclined surface 141 at the top of the inclined portion 14 extends along the inclined surface 121 of the groove structure 12. By providing the inclined portion 14 on the outer side of the bending die body 11, the possibility that the bending edge 101 still interferes with the bending die body 11 when bending along the width direction of the bending die body 11 can be avoided in all directions. As shown Figure 8As shown, the bending die body 11 in this embodiment can be processed and manufactured based on the die of the existing general straight-edge bending die, which effectively improves the development efficiency and reduces the production cost.

[0036] like Figure 8 As shown, specifically, in this embodiment, the outer bottom of the bending die body 11 near the avoidance structure 13 is also provided with a second plane 113 connected to the inclined surface 141 at the top of the inclined portion 14, and the first plane 112 and the second plane 113 both extend along the height direction of the bending die body 11. In one embodiment, a positioning groove 15 is provided at the bottom of the bending die body, and the positioning groove 15 is used for fixing and installing the bending die body 11. The groove structure 12 is a bending groove, and the outer side surface 114 in the length direction of the bending die body 11 is symmetrical with the first plane 112 about the angular bisector 122 of the groove structure 12, so that when bending one edge, the adjacent edge has space to turn downward, and further processing of the inclined portion 14 can avoid the interference between the adjacent edge and the bending die body 11, and can also ensure that the stability of the mold is not affected after the interference part is cut off.

[0037] Specifically, during the bending process, according to the length of each bending edge, the door panel bending mold structure in this embodiment is combined with the concave mold of an array of existing general straight-edge bending molds to form a combined mold structure. In actual operation, a large hydraulic press can be used to drive the stamping mold to realize the folding of the door panel inner frame 100, thereby realizing the movement and forming action of the combined mold structure. During the stamping and forming process, the concave mold of the existing general straight-edge bending mold that forms interference will be rotated, translated, or a combination of the two to achieve the purpose of eliminating interference and realize one-time bending and forming.

[0038] It is easy to understand that in an embodiment not shown, the avoidance structure 13 can be respectively arranged on both sides of the width direction of the bending die body 11, so that when the width dimension of the door panel inner frame 100 is small, the bending die body 11 in this embodiment can be directly used to complete the bending of the four sides of the door panel inner frame 100.

[0039] According to the above embodiments, it can be seen that the bending mold structure involved in the utility model is provided with an avoidance structure on the side of the width direction of the bending die body, and the bending mold structure is combined with the die of the existing general straight-edge bending mold, and the die is respectively arranged at both ends of the combined mold structure to achieve a combination of various lengths of the combined mold structure, thereby achieving the flexibility of the combined mold structure, so that the position of the avoidance structure corresponds to the edge corner area of ​​the door frame inner frame, thereby eliminating the interference effect of the bending edge near the edge corner when the bending die body and the door frame inner frame are folded, and then eliminating the adverse effects caused by the cutting-type sharp edges of the door frame inner frame.

[0040] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.

Claims

1. A bending mold structure, characterized in that: It comprises a bending die body (11), wherein the top of the bending die body (11) is provided with a groove structure (12) extending along the length direction of the bending die body (11); A side portion of the bending die body (11) in the width direction is provided with an avoidance structure (13), the avoidance structure (13) extending from a position close to the groove structure (12) at the top of the bending die body (11) along the height direction of the bending die body (11), and the avoidance structure (13) is used to avoid a bending edge (101) bent along the width direction of the bending die body (11).

2. The bending mold structure according to claim 1, characterized in that: The avoidance structure (13) is arranged on one side of the bending die body (11) in the width direction.

3. The bending mold structure according to claim 2, characterized in that: The avoidance structures (13) are respectively arranged on both sides of the bending die body (11) in the width direction.

4. The bending die structure according to any one of claims 1 to 3, characterized in that: The avoidance structure (13) is a triangular incision structure.

5. The bending mold structure according to claim 4, characterized in that: The angle (a) between the inclined surface (131) of the triangular cutout structure and the outer surface (111) in the width direction of the bending die body (11) is 45 to 60 degrees, the dimension (h1) of the triangular cutout structure along the width direction of the bending die body (11) is 15 to 25 mm, and the height (h2) between the bottom of the triangular cutout structure and the bottom of the groove structure (12) is 20 to 40 mm.

6. The bending die structure according to any one of claims 1 to 3, characterized in that: An inclined portion (14) is provided on the outer side of the bending die body (11) close to the avoidance structure (13), and the inclined portion (14) is used to avoid a bending edge (101) bent along the width direction of the bending die body (11).

7. The bending mold structure according to claim 6, characterized in that: A first plane (112) extending downward from the top of the bending die body (11) is provided on the outer side of the bending die body (11) close to the avoidance structure (13); the inclined surface (141) at the top of the inclined portion (14) is connected to the first plane (112); and the angle (b) between the first plane (112) and the inclined surface (141) at the top of the inclined portion (14) is an obtuse angle.

8. The bending mold structure according to claim 7, characterized in that: The inclined surface (141) at the top of the inclined portion (14) extends along the inclined surface (121) of the groove structure (12).

9. The bending mold structure according to claim 7 or 8, characterized in that: A second plane (113) connected to the inclined surface (141) at the top of the inclined portion (14) is also provided on the outer bottom of the bending die body (11) close to the avoidance structure (13), and the first plane (112) and the second plane (113) both extend in the height direction of the bending die body (11).

10. The bending die structure according to any one of claims 1 to 3, characterized in that: A positioning groove (15) is provided at the bottom of the bending die body (11), and the positioning groove (15) is used for fixing and installing the bending die body (11).

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