Double-drawing die for automobile fender

Abstract

The utility model discloses an automobile fender double-drawing die, which relates to the technical field of automobile dies, and comprises a concave die plate, two groups of symmetrically distributed die cavities are arranged on the concave die plate, each die cavity comprises a forming cavity, an outline cavity positioned in the forming cavity and a two-layer table top arranged along the edge of the forming cavity, and an R angle is arranged at the corner position of the die cavity. According to the utility model, the material utilization rate of material sheets is high after one-die two-piece punching is adopted, the material utilization rate is improved compared with one-die one-piece material utilization rate, two plates are produced through one-time punching, and the production efficiency is doubled compared with one-die one-piece material utilization rate; raised grains and impact traces generated in the material sheet stretching process can be absorbed through the forming cavity, the two layers of table boards and the designed R angle, and the impact traces generated in the die machining process can be greatly reduced and eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile die, concretely to a double-drawing type die for automobile fender. BACKGROUND

[0002] The automobile covering part manufacturing field has been the core manufacturing part of each automobile manufacturer, and cost control and product manufacturing efficiency have been pursued by each automobile manufacturer. At present, most of the automobile fender drawing die design types are single-cavity single-piece. This single-cavity single-piece design has the following problems in production: 1. The material utilization rate is low because the sheet material is pentagonal or hexagonal in shape; 2. The production efficiency is not high, and there are many edge cuttings when the sheet material is cut, and only one piece is punched out at a time.

[0003] In order to maximize the production cost control and maximize the production efficiency, the original one-piece design is changed to one-mold two-piece design. However, on the basis of one-mold two-piece, how to reduce and eliminate the impact marks is a necessary problem to be solved. SUMMARY

[0004] The utility model discloses a double-drawing type die for automobile fender, which solves the problem of reducing and eliminating the impact marks of the double-drawing type die for automobile fender with one-mold two-piece.

[0005] To achieve the above object, the utility model provides the following technical scheme: a double-drawing type die for automobile fender, comprising a die plate, two groups of symmetrically distributed mold cavities are arranged on the die plate, the mold cavity comprises a forming cavity, a contour cavity located in the forming cavity and a two-layer platform arranged along the edge of the forming cavity, and an R corner is arranged at the corner position of the mold cavity.

[0006] Preferably, the line direction of the two-layer platform shape is distributed along the contour cavity shape.

[0007] Preferably, the bottom surface of the forming cavity is upwardly convex to form a two-layer platform.

[0008] Preferably, the forming cavity is provided with a recess at the concave corner position in the contour cavity.

[0009] Preferably, a machining allowance is arranged between the two groups of mold cavities.

[0010] Preferably, the two groups of mold cavities are rotationally symmetrically arranged.

[0011] The utility model has the following beneficial effects:

[0012] The utility model discloses adopt one mould two pieces of material utilization rate is high, compared to one mould one piece material utilization rate improves, one stamping production two board pieces, compared to one mould one piece production efficiency is high one time, and the size of the mould cavity that is provided is greater than the profile cavity, and the R angle of forming cavity, two layer mesa and design can absorb the wave pattern and impact mark produced in the material sheet stretching process, and the impact mark during stamping processing can be greatly alleviated and eliminated. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is whole structure schematic diagram of the utility model.

[0014] In the drawing: 1, female die plate;11, mould cavity;111, forming cavity;1110, recess;112, profile cavity;113, two layer mesa. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be apparently and completely described below with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts are within the protection scope of the utility model.

[0016] As Figure 1 The utility model discloses a kind of technical solutions: a kind of automobile fender double-pull type mould, including female die plate 1, female die plate 1 is equipped with two groups of symmetrical distribution mould cavity 11, and two groups of mould cavity 11 are rotationally symmetric, and processing allowance is equipped between two groups of mould cavity 11, one mould two pieces of material sheet outer shape is quadrilateral, mould cavity 11 includes forming cavity 111, profile cavity 112 in forming cavity 111 and two layer mesa 113 along the edge of forming cavity 111, profile cavity 112 is fender profiling cavity, the shape of two layer mesa 113 line direction is distributed along the appearance of profile cavity 112, forming cavity 111 bottom is upwardly convex and forms two layer mesa 113, forming cavity 111, two layer mesa 113 design can absorb the wave pattern and impact mark produced in the material sheet stretching process, forming cavity 111 is located in profile cavity 112 inner recessed sharp corner position and is equipped with recess 1110, recess 1110 is conducive to profile cavity 112 in recessed sharp corner position forming, the corner position of mould cavity 11 is equipped with R angle, R angle is increased, deepened, and the design of R angle can slow down material speed and reduce material trace.

[0017] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0018] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A draw die for a fender panel, comprising a die plate (1), characterised in that: The concave die plate (1) is provided with two groups of symmetrically distributed die cavities (11), the die cavity (11) comprises a forming cavity (111), a profile cavity (112) located in the forming cavity (111), and a two-layer mesa (113) arranged along the edge of the forming cavity (111), and an R corner is arranged at the corner position of the die cavity (11).

2. The draw die for a fender panel according to claim 1 wherein: The shape of the two-layer mesa (113) is distributed along the shape of the profile cavity (112).

3. The draw die for a fender panel of claim 1 wherein: The bottom surface of the forming cavity (111) is upwardly convex to form the two-layer mesa (113).

4. The draw die set for fender panel of claim 1, wherein: The forming cavity (111) is provided with a recess (1110) at the concave sharp corner position in the profile cavity (112).

5. The draw die for fender panel of claim 1, wherein: A machining allowance is arranged between the two groups of die cavities (11).

6. The draw die for fender panel of claim 1, wherein: The two groups of die cavities (11) are rotationally symmetrically arranged.

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