Automobile covering part forming die

Abstract

The utility model relates to an automobile covering part forming die which comprises an upper die base and a lower die base, a female die composed of a plurality of female die inserts is arranged on the upper die base, a containing cavity is formed in the lower die base, a male die corresponding to the female die is arranged in the containing cavity, a blank holder is movably arranged on the outer side of the male die, and a plurality of positioning blocks are arranged on the blank holder and located on the periphery of the male die. A plurality of blank pressing inserts are arranged on the working face of the blank pressing ring, the female die, the blank pressing ring and the male die are designed in a modularized mode, different female die inserts, blank pressing inserts and male dies can be replaced according to products, the die opening cost can be effectively saved, meanwhile, quick-wear parts can be replaced and repaired conveniently, and when the size and the shape of the die are slightly changed, the die can be replaced conveniently. And the size and shape accuracy of the product can be ensured by replacing or adjusting the insert.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a molding mold for automobile covering parts. Background Art

[0002] Automobile covering parts are an important part of the automobile body, including the special-shaped surfaces and internal parts of the cab, engine and chassis. They are generally formed by die stamping. They are both decorative elements of the automobile appearance and closed thin-shell structural parts that bear stress.

[0003] In the existing technology, a set of molds can generally only stamp one product and has low adaptability. If the product is changed, the entire set of molds needs to be redesigned, which is costly. The cost of processing or maintenance is also relatively high, and the mold is difficult to modify, affecting production efficiency. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a forming die for an automobile cover.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a car cover forming mold, including an upper mold base and a lower mold base, the upper mold base is provided with a die composed of a plurality of die inserts, the lower mold base is provided with an accommodating cavity, the accommodating cavity is provided with a punch corresponding to the die, a blank holder is movably provided on the outer side of the punch, a plurality of positioning blocks are provided on the blank holder around the punch, and a plurality of blank holder inserts are provided on the working surface of the blank holder.

[0006] Preferably, a pressure regulating block is provided on the upper surface of the pressure ring.

[0007] Preferably, guide plates abutting against each other are provided on the side surface of the pressure ring and the inner wall of the accommodating cavity.

[0008] Preferably, a dead block is provided at the bottom of the pressure ring.

[0009] Preferably, a limiting protrusion is provided on the side wall of the pressure ring, and a limiting plate is provided on the lower die base at a position corresponding to the limiting protrusion.

[0010] The beneficial effects of the present invention are as follows: by adopting a modular design for the die, the pressure ring and the punch, different die inserts, pressure ring inserts and punches can be replaced according to the product, which can effectively save the mold opening cost and facilitate the replacement and repair of wearing parts. When the size and shape of the mold change slightly, the size and shape accuracy of the product can be guaranteed by replacing or adjusting the inserts. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative effort.

[0012] Figure 1 The utility model is a structural schematic diagram of a forming die for an automobile cover.

[0013] Figure 2 The utility model is a schematic diagram of the upper die base structure of an automobile cover forming die.

[0014] Figure 3 The utility model is a schematic diagram of the lower die base structure of a forming die for an automobile cover.

[0015] Figure 4 The utility model is a schematic diagram of the structure of the blank holder ring of a forming die for an automobile cover.

[0016] The numbers shown in the figure represent: 1. upper die base; 101. die insert; 2. lower die base; 201. accommodating cavity; 202. limiting plate; 3. punch; 4. pressure ring; 401. pressure insert; 402. positioning block; 403. guide plate; 404. pier block; 405. limiting protrusion; 406. pressure regulating block. DETAILED DESCRIPTION

[0017] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0018] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0019] The following will be combined with specific embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0020] See Figures 1 to 4As shown, the structure of the utility model is as follows: a car cover forming die, including an upper die base 1 and a lower die base 2, the upper die base 1 is provided with a die composed of a plurality of die inserts 101, the lower die base 2 is provided with a receiving cavity 201, a punch 3 corresponding to the die is provided in the receiving cavity 201, a blank holder 4 is movably provided on the outer side of the punch 3, a plurality of positioning blocks 402 are provided on the blank holder 4 around the punch 3, and a plurality of blank holder inserts 401 are provided on the working surface of the blank holder 4. Specifically, when stamping, the plate is first placed on the punch 3, and then The plate is positioned by the positioning block 402, and then the air cushion of the press pushes the pressure ring 4 upward through the push rod, and then the press drives the upper die base 1 to move downward until the die insert 101 abuts against the pressure ring 401, pressing the plate tightly against the pressure ring 4 and continuing to press down until the die and punch 3 fit together, and the plate begins to take shape. Pressure is applied to the edge of the plate through the pressure ring 4 and the die insert 101, so that the plate can be evenly stressed during the stretching process, avoiding distortion, folding and other undesirable phenomena of the plate during the stretching process.

[0021] like Figure 3 As shown, a pressure regulating block 406 is provided on the upper surface of the pressure ring 4. Specifically, by changing the thickness of the pressure regulating block 406 at different positions, the pressing force applied to the positions of the plate with different thicknesses is made different, so as to adjust the feed resistance and feed amount, thereby ensuring the balance and stability of the pressing and improving the stability of the drawing process.

[0022] like Figure 4 As shown, guide plates 403 abutting against each other are provided on the side surface of the blank holder 4 and the inner wall of the accommodating cavity 201. Specifically, the guide plates 403 are used to ensure that the blank holder 4 will not be displaced or skewed during use.

[0023] like Figure 4 As shown, a dead block 404 is provided at the bottom of the blank holder 4. Specifically, the dead block 404 is used to absorb and disperse the impact force generated during the use of the mold, reduce direct damage to the mold, and improve the use efficiency and life of the mold.

[0024] like Figure 3 、 Figure 4 As shown, the side wall of the pressure ring 4 is provided with a limiting protrusion 405, and the position corresponding to the limiting protrusion 405 on the lower mold base 2 is provided with a limiting plate 202. Specifically, the limiting protrusion 405 cooperates with the limiting plate 202 to limit the maximum upward movement height of the pressure ring 4.

[0025] During specific use, when stamping, first place the plate on the punch 3, and position the plate through the positioning block 402. Then the air cushion of the press pushes the pressure ring 4 upward through the push rod, and then the press drives the upper die base 1 to move downward until the die insert 101 abuts against the pressure ring 401, press the plate tightly against the pressure ring 4 and continue to press down until the die and the punch 3 fit together, and the plate begins to take shape. Pressure is applied to the edge of the plate through the pressure ring 4 and the die insert 101, so that the plate can be evenly stressed during the stretching process, avoiding distortion, folding and other undesirable phenomena of the plate during the stretching process.

[0026] The above further describes the present invention with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A forming die for automobile panel, characterized by: The present invention comprises an upper die base (1) and a lower die base (2), wherein the upper die base (1) is provided with a die consisting of a plurality of die inserts (101), the lower die base (2) is provided with a receiving cavity (201), a punch (3) corresponding to the die is provided in the receiving cavity (201), a blank holder (4) is movably provided on the outer side of the punch (3), a plurality of positioning blocks (402) are provided on the blank holder (4) around the punch (3), and a plurality of blank holder inserts (401) are provided on the working surface of the blank holder (4).

2. The automobile panel forming mold according to claim 1, characterized in that: A pressure regulating block (406) is provided on the upper surface of the pressure ring (4).

3. The automobile panel forming mold according to claim 1, characterized in that: Guide plates (403) that abut against each other are provided on the side surface of the pressure ring (4) and the inner wall of the accommodating cavity (201).

4. The automobile panel forming mold according to claim 1, characterized in that: A dead block (404) is provided at the bottom of the pressure ring (4).

5. The automobile panel forming die according to claim 1, characterized in that: A limiting protrusion (405) is provided on the side wall of the pressure ring (4), and a limiting plate (202) is provided on the lower die base (2) at a position corresponding to the limiting protrusion (405).

Images