A mold for forming and connecting a reinforced structure vehicle door anti-collision beam

Abstract

The present invention discloses a reinforced structure vehicle door anti-collision beam forming and connecting mold, comprising an anti-collision beam end fixing seat, a molding mold and a secondary oblique wedge movement device; the reinforced structure vehicle door anti-collision beam is installed on the anti-collision beam end fixing seat, and the secondary oblique wedge movement device is installed above the molding mold, the molding mold comprises a left molding mold and a right molding mold, the left molding mold and the right molding mold are symmetrical structures, the anti-collision beam end fixing seat is located between the left molding mold and the right molding mold, the left molding mold and the right molding mold are a cavity structure, a first-level oblique wedge slider is provided in the cavity structure, the first-level oblique wedge slider is provided with an inner cavity, the inner cavity is provided with a second-level oblique wedge slider, the second-level oblique wedge movement device comprises a second-level running oblique wedge block, there are two second-level running oblique wedge blocks, which are respectively located on the outsides of the left molding mold and the right molding mold, the second-level running oblique wedge block moves downward to squeeze the first-level oblique wedge slider and the second-level oblique wedge slider to move inward.

Description

Technical Field

[0001] The present invention particularly relates to a forming and connecting die for a vehicle door anti-collision beam with a reinforced structure. Background Art

[0002] As an important safety component in the door assembly, the door anti-collision beam mainly improves the safety performance of the car in the event of a side collision. The traditional door anti-collision beam has a simple structure, and the main structure is generally a round tube, an elliptical tube and a large tube. Due to the simple cross-section, the cross-sectional inertia moment of the overall structure of the anti-collision beam is small, that is, the bending and torsional section modulus is insufficient, resulting in reduced safety performance of the entire vehicle in the event of a side collision. At present, in order to expand the automobile market, automobile safety is the primary demand of customers. With the traditional structure anti-collision beam, the car door is easily deformed by impact, which directly threatens the life safety of the passengers in the car. In summary, how to improve the anti-collision performance of the car body and protect the lives of the driver and passengers is the research direction that all automobile people are working hard on.

[0003] The vehicle manufacturer needs a door anti-collision beam with a high bending and torsional section modulus. One way to make it is to combine two layers of high-strength steel pipes. This reduces the difficulty of the process, improves the door's ability to resist deformation, and increases the safety performance of the car during side collisions and the survival space of the passengers inside the car. Summary of the Invention

[0004] The purpose of the present invention is to provide a forming and connecting die for a vehicle door anti-collision beam with a reinforced structure.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A reinforced structure vehicle door anti-collision beam forming and connecting mold, including an anti-collision beam end fixing seat, a molding mold and a secondary oblique wedge movement device; the reinforced structure vehicle door anti-collision beam is installed on the anti-collision beam end fixing seat, and the secondary oblique wedge movement device is installed above the molding mold, the molding mold includes a left molding mold and a right molding mold, the left molding mold and the right molding mold are symmetrical structures, the anti-collision beam end fixing seat is located between the left molding mold and the right molding mold, the left molding mold and the right molding mold are a cavity structure, a first-level oblique wedge slider is provided in the cavity structure, the first-level oblique wedge slider is provided with an inner cavity, the inner cavity is provided with a second-level oblique wedge slider, the second-level oblique wedge movement device includes a second-level running oblique wedge block, there are two second-level running oblique wedge blocks, which are respectively located on the outside of the left molding mold and the right molding mold, the second-level running oblique wedge block moves downward to squeeze the first-level oblique wedge slider and the second-level oblique wedge slider to move inward.

[0007] Preferably, the anti-collision beam end fixing seat includes an outer tube end fixing seat and an inner tube core; the inner tube core is fixed on the outer tube end fixing seat, and the reinforced structure door anti-collision beam is composed of two layers of tubes embedded in each other, namely an outer layer of large tube and an inner layer of small-section tube.

[0008] Preferably, the outer tube end fixing seat is provided with a cavity, which is adapted to the outer contour of the outer large tube; and the outer shape of the inner tube core is adapted to the inner cavity of the inner small-section tube.

[0009] Preferably, the secondary inclined wedge motion device includes an upper template, and the forming mold includes a mold bottom plate; the cavity structure of the forming mold and the right forming mold is surrounded by the mold outer plates on the front and rear sides, the outer inclined wedge support plate, the top upper template, and the bottom mold bottom plate.

[0010] Preferably, an inclined wedge surface is provided on the upper outer side of the first-level inclined wedge slider, a clamping block is provided on the inner side of the first-level inclined wedge slider, a semi-ring notch surface is provided on the inner side of the clamping block, and an inclined wedge surface is also provided on the upper outer side of the second-level inclined wedge slider. When in working state, the inclined wedge surface of the first-level inclined wedge slider and the inclined wedge surface of the second-level inclined wedge slider are in sliding contact with the second-level moving inclined wedge block respectively.

[0011] Preferably, an external threaded unloading screw is installed on the outer side of the first-level inclined wedge slider, a through hole structure is provided inside the inclined wedge supporting plate, the external threaded unloading screw passes through the through hole structure, and a rectangular spring for the slider is provided at the outer end of the external threaded unloading screw and the inclined wedge supporting plate.

[0012] Preferably, a punch fixing plate is installed at the front end of the secondary inclined wedge slider, and a punch is fixedly installed on the punch fixing plate, which firmly fixes the punch in the secondary inclined wedge slider; a rectangular spring for the punch is sleeved on the punch, and the two ends of the rectangular spring for the punch are divided into a punch fixing plate and a clamping block, which is used to rebound the secondary inclined wedge slider to its initial position when unloading, and the clamping block is provided with a through hole structure, and the punch passes through the through hole structure.

[0013] Preferably, an outer cavity self-lubricating slide is provided between the inner surface of the outer plate of the mold and the first-level inclined wedge slider; an inner cavity small self-lubricating slide is provided between the upper template and the first-level inclined wedge slider; and a self-lubricating slide is provided between the second-level inclined wedge slider and the inner cavity of the first-level inclined wedge slider.

[0014] Preferably, a discharge spring is provided between the clamping block of the right forming mold and the clamping block of the left forming mold.

[0015] Preferably, the secondary inclined wedge motion device also includes an outer vertical plate, which is connected to the upper template, and a cylinder mounting seat is installed on the outer vertical plate, and a cylinder is installed on the cylinder mounting seat. The output end of the cylinder is connected to the cylinder connecting block, and the lower end of the cylinder connecting block is fixed on the inclined wedge mounting seat. Secondary running inclined wedge blocks are installed on both sides of the inclined wedge mounting seat, and a guide sleeve is provided on the inclined wedge mounting seat. A guide column is fixed on the upper template, and the guide column passes through the guide sleeve.

[0016] Beneficial technical effects:

[0017] 1. The present invention pre-positions the two layers of pipes by means of a profiling block, so that the inner layer of small-section pipe is nested inside the outer layer of large pipe. The pipes are then connected by forming with a mold, i.e., the inner and outer layers of pipes undergo local plastic deformation, and the small pipe is fixed inside the large pipe by means of the deformation area, thereby forming a reinforced structure of the vehicle door anti-collision beam body. The forming process is simple and the production and processing cost is low.

[0018] 2. The present invention realizes four actions, namely, pressing and forming on two sides of the product, through one power mechanism. It has a compact structure, and the moving parts such as the wedge are symmetrically distributed. The mold synchronization is good, and the force on the internal small tube is always balanced. It is superior to using a single power drive form. It adopts a simple two-level wedge structure to realize the two actions of pressing and piercing and forming in sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the structure of the forming and connecting mold of the reinforced structure vehicle door anti-collision beam of the present invention.

[0021] Figure 2 It is a schematic structural diagram of the anti-collision beam end fixing seat of the present invention.

[0022] Figure 3 It is a schematic diagram of the structure of the vehicle door anti-collision beam with a reinforced structure of the present invention.

[0023] Figure 4 It is a cross-sectional view taken along the AA direction of the present invention.

[0024] Figure 5 It is a cross-sectional view taken along CC direction of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the two-stage inclined wedge motion device of the present invention.

[0026] Figure 7 It is a schematic diagram of the primary molding structure of the present invention.

[0027] Figure 8 It is a schematic diagram of the secondary molding structure of the present invention.

[0028] Figure 9 It is a cross-sectional view of the secondary molding of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0030] See also Figure 1-9 As shown, a reinforced structure vehicle door anti-collision beam forming and connecting mold includes an anti-collision beam end fixing seat 1, a forming mold 3 and a secondary wedge motion device 4; the reinforced structure vehicle door anti-collision beam 2 is installed on the anti-collision beam end fixing seat 1, the anti-collision beam end fixing seat 1 is used to fix the reinforced structure vehicle door anti-collision beam 2, the forming mold 3 includes a left forming mold and a right forming mold, the left forming mold and the right forming mold are symmetrical structures, the anti-collision beam end fixing seat 1 is located between the left forming mold and the right forming mold, the left forming mold and the right forming mold are a cavity structure, and the cavity structure is provided with The first-level oblique wedge slider 3-11 is provided with an inner cavity, and the inner cavity is provided with a second-level oblique wedge slider 3-10. The second-level oblique wedge motion device 4 includes a second-level running oblique wedge block 4-6. There are two second-level running oblique wedge blocks 4-6, which are respectively located on the outside of the left forming mold and the right forming mold. The second-level running oblique wedge block 4-6 moves downward to squeeze the first-level oblique wedge slider 3-11 and the second-level oblique wedge slider 3-10 to move inward. The first-level oblique wedge slider 3-11 presses the reinforced structure of the car door anti-collision beam 2 to form, and the second-level oblique wedge slider 3-10 is used for local piercing point forming.

[0031] The anti-collision beam end mount 1 comprises an outer tube end mount 1-1 and an inner tube core 1-2; the inner tube core 1-2 is fixed to the outer tube end mount 1-1. The reinforced door anti-collision beam 2 is constructed from two layers of tubing: an outer large tubing 2-1 and an inner small-section tubing 2-2. A first-level wedge slider 3-11 compresses the outer large tubing 2-1, deforming it. A second-level wedge slider 3-10 is used to locally pierce and shape the outer large tubing 2-1.

[0032] The outer tube end fixing seat 1-1 is provided with a cavity, which is adapted to the outer contour of the outer large tube 2-1; the outer shape of the inner tube core 1-2 is adapted to the inner cavity of the inner small-section tube 2-2.

[0033] The secondary inclined wedge motion device 4 includes an upper template 4-5, and the forming mold 3 includes a mold base plate 3-14; the cavity structure of the forming mold and the right forming mold is surrounded by the mold outer panels 3-9 on the front and rear sides, the outer inclined wedge support plate 3-3, the top upper template 4-5, and the bottom mold base plate 3-14.

[0034] Specifically, the bottom of the mold outer plate 3-9 is connected to the mold bottom plate 3-14, the upper part of the mold outer plate 3-9 is connected to the upper template 4-5, and the inclined wedge support plate 3-3 is located inside the cavity surrounded by the mold outer plate 3-9, the bottom of which is connected to the mold bottom plate 3-14, the mold outer plate 3-9 and the upper template 4-5.

[0035] An inclined wedge surface is provided on the upper outer side of the first-level inclined wedge slider 3-11, a clamping block 3-6 is provided on the inner side of the first-level inclined wedge slider 3-11, and a semi-ring notch surface is provided on the inner side of the clamping block 3-6. An inclined wedge surface is also provided on the upper outer side of the second-level inclined wedge slider 3-10. When in working state, the inclined wedge surface of the first-level inclined wedge slider 3-11 and the inclined wedge surface of the second-level inclined wedge slider 3-10 are in sliding contact with the second-level moving inclined wedge block 4-6 respectively.

[0036] An external threaded unloading screw 3-1 is installed on the outer side of the first-level inclined wedge slider 3-11, and a through-hole structure is provided inside the inclined wedge support plate 3-3. The external threaded unloading screw 3-1 passes through the through-hole structure. The outer end of the external threaded unloading screw 3-1 and the inclined wedge support plate 3-3 are provided with a rectangular spring 3-2 for the slider, which is used to rebound the first-level inclined wedge slider 3-11 to its initial position when unloading.

[0037] The front end of the secondary angular wedge slider 3-10 is mounted with a punch fixing plate 3-8, to which a punch 3-7 is fixedly mounted. This plate secures the punch 3-7 to the secondary angular wedge slider 3-10. A rectangular punch spring 3-5 is sleeved over the punch 3-7. The spring 3-5 has two ends, each of which is separated by a punch fixing plate 3-8 and a clamping block 3-6. These springs are used to return the secondary angular wedge slider 3-10 to its initial position during unloading. The clamping block 3-6 has a through-hole through which the punch 3-7 passes.

[0038] An outer cavity self-lubricating slide 3-4 is provided between the inner surface of the outer vertical plate 3-9 of the mold and the first-level inclined wedge slider 3-11; an inner cavity small self-lubricating slide 3-12 is provided between the upper mold plate 4-5 and the first-level inclined wedge slider 3-11; a self-lubricating slide 3-13 is provided between the second-level inclined wedge slider 3-10 and the inner cavity of the first-level inclined wedge slider 3-11, and the second-level inclined wedge slider 3-10 is in sliding contact with the inner cavity of the first-level inclined wedge slider 3-11 through the self-lubricating slide 3-13.

[0039] A discharge spring 3-15 is provided between the clamping block 3-6 of the right forming mold and the clamping block 3-6 of the left forming mold; since the forming molds are arranged symmetrically on the left and right, a discharge spring 3-15 is provided between the two to make the left and right forming molds rebound to their initial positions when unloading.

[0040] The secondary wedge motion device 4 also includes an outer plate 4-3, which is connected to the upper mold plate 4-5. A cylinder mounting seat 4-2 is mounted on the outer plate 4-3. A cylinder 4-1 is mounted on the cylinder mounting seat 4-2. The output end of the cylinder 4-1 is connected to a cylinder connecting block 4-10. The lower end of the cylinder connecting block 4-10 is fixed to the wedge mounting seat 4-8. Secondary operating wedge blocks 4-6 are mounted on both sides of the wedge mounting seat 4-8. The secondary operating wedge blocks 4-6 are powered by the cylinder 4-1 to achieve downward movement. Self-lubricating wedge sliders 4-4 are mounted on the sides of the secondary operating wedge blocks 4-6 to reduce frictional resistance. A guide sleeve 4-9 is provided on the wedge mounting seat 4-8. A guide post 4-7 is fixed to the upper mold plate 4-5. The guide post 4-7 passes through the guide sleeve 4-9. The cooperation between the guide post 4-7 and the guide sleeve 4-9 enables the secondary operating wedge block 4-6 to maintain linear motion. When in working state, the secondary inclined wedge slider 3-10 is in sliding contact with the secondary moving inclined wedge block 4-6.

[0041] An observation hole is provided on the outer facade 4-3, and the observation hole is two windows.

[0042] When in the non-working state, one end of the secondary oblique wedge slider 3-10 is a free end. When in the working state, the secondary oblique wedge slider 3-10 is in sliding contact with the secondary motion oblique wedge block 4-6.

[0043] Stamping process: The inner and outer layers of high-strength steel pipes are formed on the roll punching automated production line. The inner layer of small-section pipe 2-1 is inserted into the inner pipe core 1-2 to fix the end, and then the outer layer of large pipe 2-1 is inserted into the outer pipe end fixing seat 1-1 to fix the end. At this time, the mold state is as follows: Figure 7 As shown; the mold movement is divided into two sections, which are realized by the secondary operation of the inclined wedge block 4-6. One stroke makes the first-level inclined wedge slider 3-11 move to the specified position. At this time, the mold state is as follows Figure 8 As shown, the first-level wedge slider 3-11 moves to the limit position, and the clamping block 3-6 clamps the outer tube 2-1; the second-level running wedge block 4-6 continues to move downward, and the second stroke makes the second-level wedge slider 3-10 move to the specified position. At this time, the mold state is as follows Figure 9 As shown, the mold completes the local piercing forming of the outer large tube 2-1 and the inner small cross-section tube 2-2, and the secondary running inclined wedge block 4-6 moves upward. Under the action of the rectangular spring 3-2 for the slider, the primary inclined wedge slider 3-11 is rebounded to the initial position. Under the action of the rectangular spring 3-5 for the punch, the primary inclined wedge slider 3-11 is rebounded to the initial position; under the action of the unloading spring 3-15, the left forming mold and the right forming mold are rebounded to the initial position. At this time, the mold state is as follows: Figure 7 shown.

[0044] The two layers of pipes are first pre-positioned by a profiling block so that the inner layer of small-section pipe is nested inside the outer layer of large pipe. The connection is formed by using a mold to form points. That is, the inner and outer layers of pipes undergo local plastic deformation. The small pipe is fixed inside the large pipe by relying on the deformation area, thus forming a reinforced structure of the car door anti-collision beam body. The forming process is simple and the production and processing cost is low.

[0045] The invention realizes a mold for forming and connecting a structure of a reinforced vehicle door anti-collision beam. The molding principle is simple, easy to implement, and has low production and processing costs.

[0046] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

Claims

1. A mold for forming and connecting a reinforced door anti-collision beam, characterized in that: The invention comprises an anti-collision beam end fixing seat (1), a forming mold (3) and a secondary oblique wedge motion device (4); the reinforced structure vehicle door anti-collision beam (2) is installed on the anti-collision beam end fixing seat (1), the secondary oblique wedge motion device (4) is installed above the forming mold (3), the forming mold (3) comprises a left forming mold and a right forming mold, the left forming mold and the right forming mold are symmetrical structures, the anti-collision beam end fixing seat (1) is located between the left forming mold and the right forming mold, and the left forming mold and the right forming mold are cavity structures. The cavity structure is provided with a first-stage inclined wedge slider (3-11), the first-stage inclined wedge slider (3-11) is provided with an inner cavity, the inner cavity is provided with a second-stage inclined wedge slider (3-10), the second-stage inclined wedge motion device (4) includes a second-stage running inclined wedge block (4-6), there are two second-stage running inclined wedge blocks (4-6), which are respectively located on the outside of the left forming mold and the right forming mold, and the second-stage running inclined wedge block (4-6) moves downward to squeeze the first-stage inclined wedge slider (3-11) and the second-stage inclined wedge slider (3-10) to move inward.

2. The mold for forming and connecting the reinforced door anti-collision beam according to claim 1, characterized in that: The anti-collision beam end fixing seat (1) comprises an outer tube end fixing seat (1-1) and an inner tube core (1-2); the inner tube core (1-2) is fixed to the outer tube end fixing seat (1-1); and the reinforced door anti-collision beam (2) is formed by two layers of pipes being embedded and composited, namely an outer layer of large pipe (2-1) and an inner layer of small-section pipe (2-2).

3. The mold for forming and connecting the reinforced door anti-collision beam according to claim 2, characterized in that: The outer tube end fixing seat (1-1) is provided with a cavity adapted to the outer contour of the outer large tube (2-1); the outer shape of the inner tube core (1-2) is adapted to the inner cavity of the inner small-section tube (2-2).

4. The mold for forming and connecting the reinforced door anti-collision beam according to claim 1, characterized in that: The secondary inclined wedge motion device (4) includes an upper template (4-5), and the forming mold (3) includes a mold base plate (3-14); the cavity structure of the left forming mold and the right forming mold is surrounded by mold outer vertical plates (3-9) on the front and rear sides, an outer inclined wedge support plate (3-3), an upper template (4-5) at the top, and a mold base plate (3-14) at the bottom.

5. The mold for forming and connecting the reinforced door anti-collision beam according to claim 4, characterized in that: An inclined wedge surface is provided on the upper outer side of the first-stage inclined wedge slider (3-11), a clamping block (3-6) is provided on the inner side of the first-stage inclined wedge slider (3-11), a semi-ring notch surface is provided on the inner side of the clamping block (3-6), and an inclined wedge surface is also provided on the upper outer side of the second-stage inclined wedge slider (3-10). When in a working state, the inclined wedge surface of the first-stage inclined wedge slider (3-11) and the inclined wedge surface of the second-stage inclined wedge slider (3-10) are in sliding contact with the second-stage running inclined wedge block (4-6) respectively.

6. The mold for forming and connecting the reinforced door anti-collision beam according to claim 4, characterized in that: An externally threaded unloading screw (3-1) is installed on the outer side of the first-level inclined wedge slider (3-11), a through-hole structure is provided inside the inclined wedge support plate (3-3), and the externally threaded unloading screw (3-1) passes through the through-hole structure. A rectangular spring (3-2) for the slider is provided between the outer end of the externally threaded unloading screw (3-1) and the inclined wedge support plate (3-3).

7. The mold for forming and connecting the reinforced door anti-collision beam according to claim 5, characterized in that: A punch fixing plate (3-8) is installed at the front end of the secondary oblique wedge slider (3-10), a punch (3-7) is fixedly installed on the punch fixing plate (3-8), and the punch fixing plate (3-8) firmly fixes the punch (3-7) in the secondary oblique wedge slider (3-10); a punch rectangular spring (3-5) is sleeved on the punch (3-7), and the two ends of the punch rectangular spring (3-5) are divided into a punch fixing plate (3-8) and a clamping block (3-6); the clamping block (3-6) is provided with a through-hole structure, and the punch (3-7) passes through the through-hole structure.

8. The mold for forming and connecting the reinforced door anti-collision beam according to claim 7, characterized in that: An outer cavity self-lubricating slide plate (3-4) is provided between the inner surface of the mold outer vertical plate (3-9) and the first-level inclined wedge slide block (3-11); an inner cavity small self-lubricating slide plate (3-12) is provided between the upper mold plate (4-5) and the first-level inclined wedge slide block (3-11); and a self-lubricating slide plate (3-13) is provided between the second-level inclined wedge slide block (3-10) and the inner cavity of the first-level inclined wedge slide block (3-11).

9. The mold for forming and connecting the reinforced door anti-collision beam according to claim 7, characterized in that: A discharge spring (3-15) is provided between the clamping block (3-6) of the right forming die and the clamping block (3-6) of the left forming die.

10. The mold for forming and connecting a reinforced door anti-collision beam according to claim 4, characterized in that: The secondary inclined wedge motion device (4) further comprises an outer vertical plate (4-3), the outer vertical plate (4-3) being connected to an upper template (4-5), a cylinder mounting seat (4-2) being mounted on the outer vertical plate (4-3), a cylinder (4-1) being mounted on the cylinder mounting seat (4-2), an output end of the cylinder (4-1) being connected to a cylinder connecting block (4-10), a lower end of the cylinder connecting block (4-10) being fixed to an inclined wedge mounting seat (4-8), secondary operating inclined wedge blocks (4-6) being mounted on both sides of the inclined wedge mounting seat (4-8), a guide sleeve (4-9) being provided on the inclined wedge mounting seat (4-8), a guide column (4-7) being fixed to the upper template (4-5), and the guide column (4-7) passing through the guide sleeve (4-9).

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