Drawing device for hub low-pressure die

Abstract

The utility model belongs to the technical field of automobile hub manufacturing equipment, and discloses a drawing device for a hub low-pressure die, which comprises a mounting base, a hub die assembly and a lifting assembly, and the hub die assembly comprises an upper die frame; the upper die is mounted on the upper die frame; the bottom die base is suitable for being arranged on the mounting base in a sliding fit manner; the bottom die is mounted on the bottom die base; the side mold is installed on the outer side of the upper mold in the circumferential direction, and a cavity for casting a hub blank is defined by the side mold, the upper mold and the bottom mold; the lifting assembly is connected with the upper die frame through a suction cup device, and the lifting assembly is suitable for driving the upper die frame to move upwards through the suction cup device. Risks generated when a worker pulls out a hub can be well reduced, the production safety is improved, and therefore the production efficiency and the quality of hub products are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a die drawing device for wheel hub low pressure die belongs to automobile wheel hub manufacturing equipment technical field. BACKGROUND

[0002] Wheel hub is an important component of automobile, with the rapid development of automobile industry, the quality and performance requirement of automobile wheel hub is higher and higher, in the manufacturing process of wheel hub, low pressure casting is a commonly used method because it can produce the wheel hub product with complex structure and good performance. In the traditional wheel hub low pressure casting die, the die drawing usually depends on manual operation or simple mechanical device, although the simple mechanical die drawing device reduces the labor intensity of workers to some extent, but its structure and operation mode are usually single, and the adaptability is not strong, and the adaptability for wheel hubs with different sizes and shapes is poor, and the product and the die are still easy to be damaged. After searching, the Chinese patent with the announcement number CN222077908U discloses a wheel hub production die. In the patent, the upper die and the side die keep close closed state under the action of the electric push rod and the push rod to ensure that the die cavity is formed, the molten metal is poured into the die, the molten metal is cooled and solidified into the shape of the wheel hub in the die, the water tank flows to the water collecting plate through the water pipe, and then the die is cooled through the water spraying head; after solidification, the electric push rod is driven to open the upper die, the motor rotates the lead screw, the sliding block and the push rod are driven to move along the sliding groove to the center of the die, so that the side die is opened, and the worker can take out the wheel hub. However, in the patent, after the wheel hub is formed, the wheel hub is below the upper die, and the worker is easy to knock when pulling out the wheel hub, and the personal safety of the worker is caused. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a die drawing device for wheel hub low pressure die, which can well reduce the risk of workers when pulling out the wheel hub, improve production safety, and thus improve production efficiency and the quality of wheel hub products.

[0004] In order to solve the above technical problems, the technical scheme of the utility model is:

[0005] A die drawing device for wheel hub low pressure die, comprising:

[0006] A mounting base;

[0007] A wheel hub die assembly, the wheel hub die assembly comprising:

[0008] An upper die frame;

[0009] An upper die, the upper die is installed on the upper die frame;

[0010] A bottom die base, the bottom die base is suitable for sliding fit on the mounting base;

[0011] a bottom die mounted on the bottom die base;

[0012] a side die mounted on the circumference outside of the upper die, the side die, the upper die and the bottom die jointly forming a cavity for casting a hub blank;

[0013] a lifting assembly connected with the upper die frame through a suction disc device, the lifting assembly being adapted to drive the upper die frame to move upward through the suction disc device.

[0014] Further, the bottom die base is slidably fitted on the mounting base through at least a first guide rail and sliding block pair; wherein,

[0015] the first guide rail and sliding block pair comprises:

[0016] a first guide rail mounted on the mounting base;

[0017] a first sliding block mounted on the bottom die base.

[0018] Further, in order to improve production efficiency, a die lifting device for a hub low-pressure die further comprises a moving driving device, the moving driving device comprising a driving motor, a screw-nut pair and a connecting plate, the driving motor being mounted on the mounting base, the connecting plate being mounted on the bottom die base, the screw in the screw-nut pair being connected with the movable end of the driving motor, and the nut in the screw-nut pair being mounted on the connecting plate.

[0019] Further, in order to enable the upper die frame to be stably lifted and lowered and to protect the formed hub from being damaged, the lifting assembly comprises a lifting support, a lifting driving member, a lifting wheel, a lifting chain and a sliding base;

[0020] the lifting support being mounted on the mounting base, the lifting driving member and the lifting wheel being mounted on the lifting support, the movable end of the lifting driving member being connected with the lifting wheel, the sliding base being slidably fitted on the lifting support, the suction disc device being mounted on the sliding base, and the lifting chain being adapted to connect the lifting wheel and the sliding base.

[0021] Further, the sliding base is slidably fitted on the lifting support through at least a second guide rail and sliding block pair; wherein,

[0022] the second guide rail and sliding block pair comprises:

[0023] a guide rail mounted vertically on the lifting support;

[0024] a sliding block mounted on the sliding base.

[0025] Further, in order to ensure the stable grabbing and lifting of the upper die frame during the die stripping process, the suction cup device comprises a suction cup base, a vacuum joint and a vacuum suction cup, the suction cup base is installed on the sliding base, the vacuum joint is installed on the suction cup base, and the vacuum suction cup is connected with the vacuum joint.

[0026] Further, in order to ensure that the hub can be smoothly and completely taken out of the mold and avoid damage to the surface of the hub, the die stripping device for the low-pressure hub mold further comprises at least one ejector assembly, the ejector assembly comprises an ejector cylinder and an ejector block, the bottom die base is provided with a working cavity, the ejector cylinder is installed in the working cavity, the ejector block is connected with a movable end of the ejector cylinder, the ejector block is movable in the mold cavity of the bottom die, and the ejector block is suitable for being driven by the ejector cylinder to lift the hub in the bottom die after the hub is formed.

[0027] After the above technical scheme is adopted, the die stripping device for the low-pressure hub mold has the following beneficial effects:

[0028] In the die stripping device for the low-pressure hub mold, the upper die, the bottom die and the side die jointly form a mold cavity for casting a hub blank, molten metal is poured into the mold cavity, the molten metal fills the mold cavity under the action of pressure and starts to cool and solidify, in this process, the hub mold assembly can accelerate the cooling speed through external cooling equipment; after the hub is cooled and solidified, the side die is disassembled through external equipment, the mold cavity is opened, the lifting driving element is driven to lift, the sliding base and the suction cup device are driven to move upwards through the lifting wheel and the lifting rope, the vacuum suction cup is adsorbed on the upper die frame, then the upper die is lifted, the driving motor is rotated, the connecting plate is driven through the screw nut pair, and then the bottom die base is driven to move along the first guide rail away from the upper die, the ejector cylinder in the ejector assembly drives the ejector block to lift the hub in the bottom die, the hub is separated from the bottom die, and the operator can take out the hub to complete the production of the hub. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 . A perspective view of the die stripping device for the low-pressure hub mold;

[0030] Figure 2 . A front view of the die stripping device for the low-pressure hub mold;

[0031] Figure 3 . A right view of the die stripping device for the low-pressure hub mold;

[0032] Figure 4 . A structural schematic view of the hub mold assembly. DETAILED DESCRIPTION

[0033] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further explained in detail.

[0034] As Figures 1-4 Indicated, a kind of wheel hub low-pressure mould lift device, comprising:

[0035] Mounting base 1;

[0036] Wheel hub mould assembly, wheel hub mould assembly includes:

[0037] Upper die carrier 21;

[0038] Upper die 22, upper die 22 is installed on upper die carrier 21;

[0039] Bottom die base 23, bottom die base 23 is suitable for slidingly fitted on mounting base 1;

[0040] Bottom die 24, bottom die 24 is installed on bottom die base 23;

[0041] Side die 25, side die 25 is installed on the circumferential outside of upper die 22, side die 25, upper die 22 and bottom die 24 are enclosed to form the cavity of casting wheel hub blank;

[0042] Lifting assembly, lifting assembly is connected with upper die carrier 21 by a suction cup device, lifting assembly is suitable for driving upper die carrier 21 to move up by suction cup device.

[0043] In the embodiment, when needing to pour to complete wheel hub forming work, sliding bottom die base 23 drives the bottom die 24 to move to the lower side of upper die 22, by lifting assembly driving upper die 22 to move downwards, with bottom die 24, by external driving equipment driving side die 25 is installed on the circumferential outside of upper die 22, mould completes moulding and forms the cavity of wheel hub casting, and aluminum liquid is injected into cavity by pouring opening arranged on bottom die 24.

[0044] Specifically, as Figures 1-3 Indicated, bottom die base 23 is slidably fitted on mounting base 1 by at least a first guide rail slider pair;Wherein,

[0045] First guide rail slider pair includes:

[0046] First guide rail 31 installed on mounting base 1;

[0047] First slider 32 installed on bottom die base 23.

[0048] Specifically, as Figures 1-3As shown in the figure, the mold lifting device for hub low-pressure mold further comprises a moving driving device, the moving driving device comprises a driving motor 41, a screw-nut pair and a connecting plate 43, the driving motor 41 is installed on the installation base 1, the connecting plate 43 is installed on the bottom die base 23, the screw 42 in the screw-nut pair is connected with the movable end of the driving motor 41, and the nut in the screw-nut pair is installed on the connecting plate 43.

[0049] Specifically, as shown in the figure, Figures 1-3 The lifting assembly comprises a lifting bracket 51, a lifting driving part 52, a lifting wheel 53, a lifting chain and a sliding base 54.

[0050] The lifting bracket 51 is installed on the installation base 1, the lifting driving part 52 and the lifting wheel 53 are installed on the lifting bracket 51, the movable end of the lifting driving part 52 is connected with the lifting wheel 53, the sliding base 54 is slidingly fitted on the lifting bracket 51, the suction cup device is installed on the sliding base 54, the lifting chain is suitable for connecting the lifting wheel 53 and the sliding base 54, and the lifting wheel 53 can be a lifting sprocket.

[0051] In the embodiment, the sliding base 54 slides on one side of the lifting bracket 51, and a lifting block is arranged on the other side of the sliding base 54 relative to the sliding base 54, and the lifting block is connected with one end of the lifting chain.

[0052] Specifically, as shown in the figure, Figures 1-3 The sliding base 54 is slidingly fitted on the lifting bracket 51 through at least one second guide rail sliding block pair; wherein,

[0053] The second guide rail sliding block pair comprises:

[0054] A second guide rail 61 vertically installed on the lifting bracket 51;

[0055] A second sliding block 62 installed on the sliding base 54.

[0056] Specifically, as shown in the figure, Figures 1-3 The suction cup device comprises a suction cup base 71, a vacuum connector 72 and a vacuum suction cup 73, the suction cup base 71 is installed on the sliding base 54, the vacuum connector 72 is installed on the suction cup base 71, and the vacuum suction cup 73 is connected with the vacuum connector 72.

[0057] Specifically, as shown in the figure, Figures 1-3As shown, the ejection device for the hub low-pressure die further comprises two top die assemblies, the top die assembly comprising a top die cylinder 81 and a top ejection module 82, the bottom die base 23 being provided with a working cavity 231, the top die cylinder 81 being installed in the working cavity 231, the top ejection module 82 being connected with the movable end of the top die cylinder 81, the top ejection module 82 being movable in the die cavity of the bottom die 24, the top ejection module 82 being adapted to be driven by the top die cylinder 81 to eject the hub in the bottom die 24 after the hub is formed, and the upper end surface of the top ejection module 82 being parallel to the die cavity bottom surface of the bottom die 24 when the top ejection module 82 is not ejected.

[0058] In the embodiment, the upper die 22, the bottom die 24 and the side die 25 jointly form a die cavity for forming a hub blank, the molten metal is poured into the die cavity, the molten metal fills the die cavity under the action of pressure and starts to cool and solidify, and in this process, the hub die assembly can be accelerated in cooling speed by the external cooling equipment.

[0059] After the hub is cooled and solidified, the side die 25 is detached by the external equipment, the die cavity is opened, the lifting driving member 52 is driven, the sliding base 55 and the suction cup device are moved upward by the lifting wheel 53 and the lifting rope 54, the vacuum suction cup 73 is adsorbed on the upper die 22, the upper die 22 is lifted, the driving motor 41 is rotated, the connecting plate 43 is driven by the screw nut pair, the bottom die 24 base is driven to move along the first guide rail 31 away from the upper die 22, the top die cylinder 81 in the top die assembly drives the top ejection module 82 to eject the hub in the bottom die 24, and the hub is separated from the bottom die 24, and the operator can take out the hub to complete the production of the hub.

[0060] The above-described specific embodiments further specifically describe the technical problems, technical solutions and beneficial effects solved by the utility model, and it should be understood that the above-described specific embodiments are only specific embodiments of the utility model and are not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A draw device for a wheel hub low pressure mold, characterized by, Comprising: a mounting base (1); a wheel hub mold assembly, the wheel hub mold assembly comprising: an upper mold frame (21); an upper mold (22) mounted on the upper mold frame (21); a lower mold base (23) adapted to be slidingly fitted on the mounting base (1); a lower mold (24) mounted on the lower mold base (23); a side mold (25) mounted on the upper mold (22) circumferentially outside, the side mold (25), the upper mold (22) and the lower mold (24) jointly enclosing a cavity for casting a wheel hub blank; a lifting assembly connected with the upper mold frame (21) through a suction cup device, the lifting assembly being adapted to drive the upper mold frame (21) to move upward through the suction cup device.

2. The mold lifting device for a wheel hub low-pressure mold according to claim 1, characterized in that: the lower mold base (23) is slidingly fitted on the mounting base (1) through at least one first guide rail and sliding block pair; wherein, the first guide rail and sliding block pair comprises: a first guide rail (31) mounted on the mounting base (1); a first sliding block (32) mounted on the lower mold base (23).

3. The wheel hub low pressure mold lift device of claim 1, wherein: Further comprising a movement driving device, the movement driving device comprising a driving motor (41), a screw-nut pair and a connecting plate (43), the driving motor (41) being mounted on the mounting base (1), the connecting plate (43) being mounted on the lower mold base (23), a screw (42) in the screw-nut pair being connected with a movable end of the driving motor (41), a nut in the screw-nut pair being mounted on the connecting plate (43).

4. The mold lifting device for a wheel hub low-pressure mold according to claim 1, characterized in that: the lifting assembly comprises a lifting support (51), a lifting driving member (52), a lifting wheel (53), a lifting chain and a sliding base (54); the lifting support (51) is mounted on the mounting base (1), the lifting driving member (52) and the lifting wheel (53) are mounted on the lifting support (51), a movable end of the lifting driving member (52) is connected with the lifting wheel (53), the sliding base (54) is slidingly fitted on the lifting support (51), the suction cup device is mounted on the sliding base (54), and the lifting chain is adapted to connect the lifting wheel (53) and the sliding base (54).

5. The mold lifting device for a wheel hub low-pressure mold according to claim 4, characterized in that: the sliding base (54) is slidingly fitted on the lifting support (51) through at least one second guide rail and sliding block pair; wherein, the second guide rail and sliding block pair comprises: a second guide rail (61) mounted vertically on the lifting support (51); a second sliding block (62) mounted on the sliding base (54).

6. The hub low pressure mold lift device of claim 4, wherein: The suction disc device comprises a suction disc base (71), a vacuum joint (72) and a vacuum suction disc (73), the suction disc base (71) is installed on the sliding base (54), the vacuum joint (72) is installed on the suction disc base (71), and the vacuum suction disc (73) is connected with the vacuum joint (72).

7. The hub low pressure mold lift device of claim 1, wherein: Further comprising at least one top die assembly, the top die assembly comprises a top die cylinder (81) and a jacking module (82), a working cavity (231) is arranged in the bottom die base (23), the top die cylinder (81) is installed in the working cavity (231), the jacking module (82) is connected with the movable end of the top die cylinder (81), the jacking module (82) is movable in the die cavity of the bottom die (24), and the jacking module (82) is suitable for being driven by the top die cylinder (81) to jack up the hub in the bottom die (24) after the hub is formed.

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