Liquid filling forming die for complex section type aluminum profile

Abstract

A liquid filling forming die for a complex section type aluminum profile comprises an upper die base and a lower die base, a product piece is clamped between the upper die base and the lower die base, the die further comprises an end blocking mechanism, the end blocking mechanism comprises a core, a sealing gasket, a sealing gasket fixing plate, a core fixing plate, a core base plate, a first connecting plate, an oil cylinder mounting plate and an oil cylinder, a liquid channel is formed in the core, and the liquid channel is communicated with the liquid channel. The liquid outlet is formed in the front end of the core, the liquid inlet is formed in the upper surface of the rear end of the core, the rear end of the core sequentially penetrates through the sealing gasket, the sealing gasket fixing plate and the core fixing plate and then is fixed to the core base plate, the core fixing plate is provided with a sealing connector, and the sealing connector is communicated with the liquid inlet in the core in a sealed mode. The sealing gasket fixing plate, the core fixing plate, the core base plate and the first connecting plate are sequentially connected, the oil cylinder is fixed to the side end face of the mold, and an oil cylinder piston rod penetrates through the oil cylinder fixing plate to be connected with the first connecting plate. According to the end blocking mechanism, the sealing effect of an aluminum profile with a complex section shape can be achieved under liquid filling and pressurization.

Description

TECHNICAL FIELD

[0001] The utility model relates to a section bar forming die, especially to a liquid filling forming die of complex cross section aluminum profile. BACKGROUND

[0002] The application of aluminum alloy crash beam, especially in high-end vehicles, is more and more, and the aluminum alloy is light in weight and good in rigidity, which is the first choice of designers. The shape on the crash beam is designed to enhance the crash performance of the whole vehicle, and some shapes cannot be completed by using conventional pressing dies. The tolerance of the air pressure product cannot be reached, the core cannot be pulled out after being pressed, and the liquid filling forming can solve the problem that the rigid core cannot be pulled out. However, the liquid filling forming die is critical to the sealing of the product end, and the unreasonable design of the sealing structure is very easy to cause liquid leakage. CONTENT OF THE UTILITY MODEL

[0003] The utility model discloses a liquid filling forming die of complex cross section aluminum profile, and an end plugging mechanism can achieve the sealing effect of the aluminum profile of complex cross section under liquid filling and pressure boosting.

[0004] The utility model discloses a liquid filling forming die of complex cross section aluminum profile, and an end plugging mechanism can achieve the sealing effect of the aluminum profile of complex cross section under liquid filling and pressure boosting.

[0005] A liquid filling forming die of complex cross section aluminum profile, the die comprises an upper die seat and a lower die seat, a product is clamped between the upper die seat and the lower die seat, the die further comprises an end plugging mechanism, the end plugging mechanism comprises a core, a sealing gasket, a sealing gasket fixing plate, a core fixing plate, a core pad plate, a first connecting plate, an oil cylinder mounting plate and an oil cylinder, the core is internally provided with a liquid channel, a liquid outlet is formed at the front end of the core, and a liquid inlet is formed in the upper surface of the rear end of the core, the rear end of the core is sequentially threaded through the sealing gasket, the sealing gasket fixing plate and the core fixing plate and is fixed on the core pad plate through screws, a sealing joint is arranged on the core fixing plate, the sealing joint is threaded through the core fixing plate and is in sealing communication with the liquid inlet on the core, the sealing gasket is fixed in the sealing gasket fixing plate clamping groove, the sealing gasket fixing plate and the core fixing plate are fixedly connected through screws, the core pad plate is fixed on the core fixing plate through screws, the first connecting plate is fixed on the core pad plate through screws, the oil cylinder is fixed on the side end face of the die through the oil cylinder fixing plate, the piston rod of the oil cylinder is fixedly connected with the first connecting plate through the oil cylinder fixing plate, the core is inserted into the inner cavity of the product and is attached to the inner wall of the product to form product end plugging.

[0006] The liquid filling forming die of the complex cross-section aluminum profile further comprises an end clamping mechanism arranged at the left and right ends of the product, and two groups of the end clamping mechanism are symmetrically arranged at the front and back of the end of the product, the end clamping mechanism comprises a wedge, a sliding block, a clamping block and a reset spring assembly, the top end of the wedge is fixed on the upper die seat, the sliding block is arranged on the lower die seat, one end of the sliding block is connected with the clamping block, the lower end of the sliding block is connected with one end of the reset spring assembly, the other end of the reset spring assembly is fixed on the lower die seat, the wedge is arranged above the sliding block, and the two clamping blocks clamp the product in the front and back directions.

[0007] The liquid filling forming die of the complex cross-section aluminum profile further comprises a side pushing mechanism arranged in two groups and symmetrically arranged at the front and back of the product, the side pushing mechanism comprises a side pushing block, a second connecting plate and a side pushing oil cylinder, the side pushing oil cylinder is fixed on the lower die seat, the top rod end of the side pushing oil cylinder is connected with the second connecting plate, and the side pushing block is fixed on the connecting plate, and the side pushing blocks of the front and back groups of the side pushing mechanism press the front and back surfaces of the product.

[0008] The core blocking end of the liquid filling forming die of the complex cross-section aluminum profile is matched with the shape of the inner cavity of the product, and the water inlet end is arranged in a square shape and matched with the shape of the sealing hole on the sealing gasket.

[0009] The liquid filling forming die of the complex cross-section aluminum profile is provided with two sealing joints, and the two sealing joints are respectively connected with the liquid inlets on the two cores arranged side by side.

[0010] The end blocking mechanism can realize sealing of the complex cross-section aluminum profile under the condition of liquid filling and pressure increasing, so that the purpose of liquid filling and pressure forming is achieved.

[0011] The clamping mechanism cooperates with the end blocking mechanism to realize clamping and positioning of the product in the left and right directions, the side pushing mechanism realizes pressure forming of the front and back surfaces of the product, and the upper die mechanism realizes pressure forming of the outer arc surface of the product. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described in connection with the drawings.

[0013] Figure 1 It is main view structural schematic diagram of liquid filling forming die of the utility model;

[0014] Figure 2 It is liquid filling forming die plan view structural schematic diagram;

[0015] Figure 3 is a structure diagram of the end blocking mechanism;

[0016] Figure 4 is an explosion structure diagram of the end blocking mechanism;

[0017] Figure 5 is a structure diagram of the side clamping mechanism;

[0018] Figure 6 is a structure diagram of the side pushing mechanism.

[0019] In the figure: 1, upper die seat; 2, lower die seat; 3, product piece; 4, end blocking mechanism; 4-1, core; 4-1-1, liquid outlet; 4-1-2, liquid inlet; 4-2, sealing gasket; 4-3, sealing gasket fixing plate; 4-4, core fixing plate; 4-4-1, sealing joint; 4-5, core pad plate; 4-6, first connecting plate; 4-7, oil cylinder mounting plate; 4-8, oil cylinder; 5, end clamping mechanism; 5-1, inclined wedge; 5-2, sliding block; 5-3, clamping block; 5-4, reset spring assembly; 6, side pushing mechanism; 6-1, side pushing block; 6-2, second connecting plate; 6-3, side pushing oil cylinder. DETAILED DESCRIPTION

[0020] The utility model will be further explained in connection with the drawings below.

[0021] Reference Figure 1 and Figure 6The utility model relates to a complex cross section type aluminum profile's liquid filling forming die, apply to the product piece of longer, the profile surface has the pressure type feature, the product cavity needs to have the support can type to the place, the conventional rigid core cannot realize the wear and tear action, utilize the utility model end plugging mechanism to fill in the high pressure liquid into the product piece cavity and act as the support core, to complete the product's pressure type. The utility model discloses a complex cross section type aluminum profile's liquid filling forming die includes upper die seat 1, lower die seat 2, end plugging mechanism 4, end clamping mechanism 5 and side push mechanism 6, and the product piece 3 is clamped between upper die seat 1 and lower die seat 2, and the upper die seat is provided with the conventional pressure type subassembly, such as upper pad plate subassembly, pressure plate, guide pillar, pressure type upper die and oil cylinder and oil cylinder mounting plate, and the lower die seat bears the side push mechanism, end plugging mechanism, clamping mechanism and the guidance of upper and lower dies, and the upper die seat goes down, realizes the pressure type of product piece outer arc surface, and this process is the conventional pressure type process. The profile first pre-bends and then pressure types, before pressure type, utilize end plugging mechanism to seal both ends of product piece and fill in the high pressure liquid into the cavity, for support. The end plugging mechanism includes core 4-1, sealing washer 4-2, sealing washer fixed plate 4-3, core fixed plate 4-4, core pad plate 4-5, first connecting plate 4-6, oil cylinder mounting plate 4-7 and oil cylinder 4-8, the core 4-1 is provided with solid structure on the core 4-1, and the inside is provided with liquid passage, and liquid passage outlet 4-1-1 is arranged at the front end of the core 4-1, and inlet 4-1-2 is arranged on the upper surface of the rear end, the rear end of the core passes through sealing washer 4-2, sealing washer fixed plate 4-3, core fixed plate 4-4 in proper order and is fixed on the core pad plate 4-5 through screw, the core fixed plate 4-4 is provided with sealing joint 4-4-1, one end of sealing joint 4-4-1 is sealed with inlet 4-1-2 on the core and communicates, the other end is connected with high pressure water source, the sealing washer 4-2 adopts the deformable nonmetal material, such as polyurethane material, it is tightly fitted on the rear end of the core, and is pressed tightly and fixed in sealing washer fixed plate 4-3 slot, sealing washer fixed plate 4-3 is fixed on one side of core fixed plate 4-4 through screw, core pad plate 4-5 is fixed on the other side of core fixed plate 4-4 through screw, first connecting plate 4-6 is fixed on the core pad plate 4-5 through screw, oil cylinder 4-8 is fixed in the mold side end face through oil cylinder fixed plate 4-7, the piston rod of oil cylinder 4-8 passes through oil cylinder fixed plate 4-7 and is fixed with first connecting plate 4-6, and oil cylinder acts, drives the core 4-1 to insert into the inner cavity of product piece 3, and is attached with product piece 3 inner wall, and sealing washer is pressed tightly with product piece end face, and the small round corner of complex cross section type is blocked tightly, and the end plugging of product piece is completed.

[0022] The core 4-1 sealing end shape is matched with the product piece inner cavity shape, and the water inlet end is set as a square shape matched with the sealing hole shape on the sealing gasket 4-2. Two cores are used simultaneously, two sealing joints 4-4-1 are arranged at intervals, and are connected with the liquid inlets on the two cores used in parallel. The sealing joints are connected with the high-pressure water source.

[0023] After the product piece end is sealed, the upper die holder is lowered, the pressing plate on the upper die holder contacts the product piece, and the product piece is wrapped together with the lower die. At the same time, the end clamping mechanism clamps the two ends of the product through the wedge. The end clamping mechanism includes a wedge 5-1, a sliding block 5-2, a clamping block 5-3, and a reset spring assembly 5-4. The wedge 5-1 is fixed at the top of the upper die holder 1. The sliding block 5-2 is arranged on the lower die holder 2. One end of the sliding block 5-2 is connected with the clamping block 5-3. The lower end of the sliding block is connected with one end of the reset spring assembly 5-4. The other end of the reset spring assembly 5-4 is fixed on the lower die holder. The wedge 5-1 is arranged above the sliding block 5-2. The end clamping mechanism is located at the left and right ends of the product piece, and two groups are symmetrically arranged at each end, which are located at the front and back of the end of the product piece. Taking the clamping process of one end of the product piece as an example, the upper die holder is lowered, and the wedges 5-1 on the front and back of the upper die holder are lowered. During the downward movement of the wedge, the front and back sliding blocks are pressed horizontally towards the product piece. The sliding block moves, and the clamping block 5-3 is displaced towards the product piece, clamping the product piece in the front and back directions. The clamping process of the other end of the product piece is the same and is performed simultaneously. After the end is clamped, the equipment high-pressure water source fills the liquid into the liquid channel in the core through the sealing joint. The liquid enters the product piece inner cavity and is filled. The pressure is increased, for example, from 15 MPa to 20 MPa, or even to 25 MPa, to support the inner cavity wall. Then, the outer arc surface and the two side surfaces of the product piece are profiled, and the side surfaces are profiled by the side pushing mechanism 6.

[0024] The side pushing mechanism 6 is arranged in two groups and symmetrically arranged on the front and back of the product piece 3. The side pushing mechanism includes a side pushing block 6-1, a second connecting plate 6-2, and a side pushing oil cylinder 6-3. The side pushing oil cylinder 6-3 is fixed on the lower die holder 2. The top rod end of the side pushing oil cylinder 6-3 is connected with the second connecting plate 6-2. The side pushing block 6-1 is fixed on the connecting plate. The side pushing blocks of the front and back side pushing mechanisms are driven by the side pushing oil cylinder to profile the front and back side surfaces of the product piece. The profiling upper die on the upper die holder is pressed towards the product piece by the oil cylinder, and the outer arc surface profiling of the product piece is completed.

[0025] After the compression molding, the two end sealing joints are connected to the decompression command, and the decompression is completed. At the same time, the compression mold upper die and the side push block also return to the position, and the two end oil cylinders take the core assembly out of the product piece. The upper die seat is lifted, the clamping block is reset under the action of the reset spring assembly, and the clamping block is opened. Pick up the workpiece, thus completing a work cycle.

Claims

1. A liquid-filled forming die for complex profiled aluminium sections, comprising an upper die holder (1) and a lower die holder (2) between which a product piece (3) is clamped, characterised in that: The mold further comprises an end plugging mechanism (4), which comprises a core (4-1), a sealing gasket (4-2), a sealing gasket fixing plate (4-3), a core fixing plate (4-4), a core gasket plate (4-5), a first connecting plate (4-6), an oil cylinder mounting plate (4-7) and an oil cylinder (4-8), the core (4-1) is internally provided with a liquid passage, the liquid outlet (4-1-1) of which is arranged at the front end of the core (4-1), and the liquid inlet (4-1-2) is arranged on the upper surface of the rear end, the rear end of the core is sequentially threaded through the sealing gasket (4-2), the sealing gasket fixing plate (4-3), the core fixing plate (4-4) and then fixed on the core gasket plate (4-5) by screws, the core fixing plate (4-4) is provided with a sealing joint (4-4-1), the sealing joint (4-4-1) is in sealing communication with the liquid inlet (4-1-2) on the core by penetrating through the core fixing plate (4-4), the sealing gasket (4-2) is fixed in the clamping groove of the sealing gasket fixing plate (4-3), the sealing gasket fixing plate (4-3) is fixedly connected with the core fixing plate (4-4) by screws, the core gasket plate (4-5) is fixed on the core fixing plate (4-4) by screws, the first connecting plate (4-6) is fixed on the core gasket plate (4-5) by screws, the oil cylinder (4-8) is fixed on the side end face of the mold through the oil cylinder mounting plate (4-7), the piston rod of the oil cylinder (4-8) is fixedly connected with the first connecting plate (4-6) by penetrating through the oil cylinder mounting plate (4-7), the core (4-1) is inserted into the inner cavity of the product part (3) and adheres to the inner wall of the product part (3) to form an end plugging of the product part.

2. The liquid filled forming die for complex cut section aluminum material according to claim 1, wherein: The mold further comprises an end clamping mechanism (5) located at the left and right ends of the product part, two groups of which are symmetrically arranged at each end and located at the front and rear sides of the end of the product part, the end clamping mechanism (5) comprises a wedge (5-1), a sliding block (5-2), a clamping block (5-3) and a reset spring assembly (5-4), the top end of the wedge (5-1) is fixed on the upper die seat (1), the sliding block (5-2) is arranged on the lower die seat (2), one end of the sliding block (5-2) is connected with the clamping block (5-3), the lower end of the sliding block is connected with one end of the reset spring assembly (5-4), the other end of the reset spring assembly (5-4) is fixed on the lower die seat, the wedge (5-1) is arranged above the sliding block (5-2), and the two clamping blocks (5-3) are used for clamping the product part in the front-rear direction.

3. The liquid filled forming die for complex cross-sectioned aluminum profile according to claim 2, characterized in that: The mold is also provided with side pushing mechanisms (6), which are provided with two groups and symmetrically arranged on the front and rear sides of the product piece (3), and the side pushing mechanism comprises a side pushing block (6-1), a second connecting plate (6-2) and a side pushing oil cylinder (6-3), the side pushing oil cylinder (6-3) is fixed on the lower die seat (2), the side pushing oil cylinder (6-3) is connected with the second connecting plate (6-2) at the top rod end, and the side pushing block (6-1) is fixed on the connecting plate, and the side pushing blocks of the front and rear groups of side pushing mechanisms press the front and rear sides of the product piece.

4. The liquid filled forming die for complex cut aluminum profiles according to claim 1, characterized in that: The shape of the sealing joint (4-4-1) is matched with the shape of the sealing hole on the sealing gasket (4-2).

5. The liquid filled forming die for complex cut aluminum profiles according to claim 1, characterized in that: The sealing joints (4-4-1) are arranged at intervals and are in sealing butt joint communication with the liquid inlet ports on the two cores used side by side.

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