Lower die water cooling structure applied to aluminum alloy hub casting

Abstract

The utility model discloses a lower die water cooling structure applied to aluminum alloy hub casting, which relates to the technical field of die casting, and comprises a lower die main body, the upper side of the lower die main body is provided with a lower die forming surface, and the lower die forming surface is provided with a lower die center hole, a mounting hole forming surface, a spoke forming surface and a spoke gap forming surface; the linear cooling water channel is located at the position below the wheel spoke forming surface; the water inlet channel is communicated with the linear cooling water channel, and the water inlet channel is provided with a water inlet; the water outlet channel is communicated with the linear cooling water channel, and the water outlet channel is provided with a water outlet; and each wheel spoke forming surface is cooled through the corresponding linear cooling water channel, so that the cooling path for the wheel spoke position is shortened, and the cooling efficiency for the wheel spoke position can be improved in a targeted manner.

Description

TECHNICAL FIELD

[0001] The utility model relates to die casting technical field especially application in the lower mould water cooling structure for aluminum alloy wheel hub casting. BACKGROUND

[0002] The diversified development of wheel hub makes the application of wheel hub die more and more, and the wheel hub die forms the wheel hub casting through solidification after pouring after the die is closed, so that the wheel hub die has a direct influence on the quality of the wheel hub casting. Due to the structural characteristics of the wheel hub, the center position of the wheel hub is the intersection area of each spoke, which belongs to a thermal node, and due to the structure of the spoke itself also needs thick and wide size, once the corresponding spoke position cools slowly after pouring, size difference is prone to occur, and once the cooling speed is fast, so shrinkage, porosity and other defects are generated in the spoke position of the wheel hub casting. SUMMARY

[0003] The utility model discloses a lower mould water cooling structure for aluminum alloy wheel hub casting.

[0004] According to the lower mould water cooling structure for aluminum alloy wheel hub casting of the utility model first aspect embodiment, including: lower mould main part, be located upper mould main part below, the lower mould main part upper side has lower mould forming surface, be provided with lower mould center hole, mounting hole forming surface, spoke strip forming surface, spoke clearance forming surface on the lower mould forming surface, the lower mould center hole is located the lower mould forming surface intermediate position, the mounting hole forming surface is distributed around the lower mould center hole outside side periphery, the spoke strip forming surface, the spoke clearance forming surface is distributed around the mounting hole forming surface outside side periphery, wherein the spoke strip forming surface and the spoke clearance forming surface are according to one-to-one interval arrangement order;Linear cooling water channel, be located in the lower mould main part, the linear cooling water channel is located the spoke strip forming surface below position;Water inlet channel, be arranged in the mounting hole forming surface downside, the water inlet channel with Linear cooling water channel intercommunication, the water inlet channel has water inlet, and the water inlet is located the lower mould main body bottom wall on;Water outlet channel, be arranged in the spoke strip forming surface towards the lower mould main body outside side end downside, the water outlet channel with Linear cooling water channel intercommunication, the water outlet channel has water outlet, and the water outlet is located the lower mould main body bottom wall on.

[0005] According to some embodiments of the utility model, the lower side of the lower mould main part has a cooling position protrusion, the linear cooling water channel is located in the cooling position protrusion, and the water inlet and the water outlet are located on the lower side of the cooling position protrusion.

[0006] According to some embodiments of the utility model, the cross section of the straight cooling water channel is circular, the shortest distance between the lower side of the straight cooling water channel and the lower side wall of the cooling position convex part is a, the shortest distance between the upper side of the straight cooling water channel and the spoke forming surface is b, the value range of a and b is a greater than or equal to 16 mm and b greater than or equal to 18 mm.

[0007] According to some embodiments of the utility model, an outer positioning ring is arranged at the outer edge position of the lower side of the lower mold body.

[0008] According to some embodiments of the utility model, the water outlet is located at the inner side position of the outer positioning ring.

[0009] According to some embodiments of the utility model, an alignment groove is arranged at the outer edge position of the upper side of the lower mold body, an alignment rib is arranged at the lower side of the upper mold body, and the alignment groove clamps the alignment rib.

[0010] According to some embodiments of the utility model, an inner positioning ring is arranged at the lower side of the lower mold center hole.

[0011] According to some embodiments of the utility model, the upper side of the water inlet channel has an extension section, and the extension section extends upwardly beyond the straight cooling water channel.

[0012] According to some embodiments of the utility model, a water channel processing hole is arranged on the outer side wall of the lower mold body, the water channel processing hole is in communication with the straight cooling water channel, and a plug is arranged on the water channel processing hole to seal the same.

[0013] According to some embodiments of the utility model, the diameter of the straight cooling water channel is c, the diameter of the water channel processing hole is d, the diameter of the plug is the same as that of the water channel processing hole, and the value range of c and d is d / c greater than or equal to 1.25.

[0014] The lower mold water cooling structure applied to aluminum alloy wheel hub casting according to the utility model has at least the following technical effects: each spoke forming surface is cooled by the corresponding straight cooling water channel, the cooling path for the spoke position is shortened, and the cooling efficiency for the spoke position is improved in a targeted manner; the water inlet channel is arranged at the lower side of the mounting hole forming surface and corresponds to the intersection position of the middle spokes in the wheel hub, so that the hot node can be preferentially cooled in the cooling process; the water inlet channel position is concentrated in the middle of the lower mold body, facilitating the arrangement of the water inlet channel external pipeline and the arrangement of the device for increasing water pressure to increase the cooling efficiency.

[0015] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] The additional aspects and advantages of the present application will become apparent and easy to understand from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 is a structural schematic diagram of the present application;

[0018] Figure 2 is a perspective view of the present application;

[0019] Figure 3 is a perspective view of the present application;

[0020] Figure 4 is a perspective view of the present application;

[0021] Figure 5 is a bottom view of the present application;

[0022] Figure 6 is Figure 5 a structural schematic diagram of A-A section in the middle;

[0023] Figure 7 is Figure 5 a structural schematic diagram of B-B section in the middle.

[0024] Reference signs:

[0025] Lower die body 100, lower die forming surface 110, lower die center hole 111, mounting hole forming surface 112, spoke bar forming surface 113, spoke gap forming surface 114, cooling position convex part 120, outer positioning ring 130, alignment groove 140, inner positioning ring 150, alignment boss 160; Straight cooling water channel 200, water inlet channel 210, water inlet 211, extension section 212, water outlet channel 220, water outlet 221, water channel processing hole 230, plug 240; Upper die body 300, alignment rib 310; Side die 400, alignment recess 410. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, in which the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application.

[0027] In the description of the utility model, it is understood that the orientation description, such as the orientation or positional relationship of the indication of up, down, front, back, left, right and the like, is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as a limitation on the utility model.

[0028] In the description of the utility model, the meaning of multiple is two or more, and greater than, less than, more than and the like are understood as not including the number. If the first and the second are described, it is only for the purpose of distinguishing technical features, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0029] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0030] The following refers to Figure 1 and Figure 2 The lower mold water cooling structure applied to aluminum alloy hub casting according to the embodiments of the utility model is described.

[0031] As Figure 1 and Figure 2 The lower mold water cooling structure applied to aluminum alloy hub casting according to the embodiments of the utility model, comprising a lower mold main body 100, a straight-line cooling water channel 200, a water inlet channel 210 and a water outlet channel 220.

[0032] The lower mold main body 100 is located below the upper mold main body 300, and the lower mold main body 100 has a lower mold forming surface 110 on the upper side, the lower mold forming surface 110 is provided with a lower mold center hole 111, an installation hole forming surface 112, a spoke strip forming surface 113 and a spoke gap forming surface 114, the lower mold center hole 111 is located at the middle position of the lower mold forming surface 110, the installation hole forming surface 112 is distributed around the outside of the lower mold center hole 111, and the spoke strip forming surface 113 and the spoke gap forming surface 114 are distributed around the outside of the installation hole forming surface 112, wherein the spoke strip forming surface 113 and the spoke gap forming surface 114 are arranged in one-to-one interval order; refer to Figure 3 、 Figure 4The linear cooling channel 200 is located inside the lower mold body 100 and is positioned below the spoke forming surface 113. The water inlet channel 210 is located below the mounting hole forming surface 112 and is connected to the linear cooling channel 200. The water inlet channel 210 has a water inlet 211, which is located on the bottom wall of the lower mold body 100. The water outlet channel 220 is located on the lower side of the end of the spoke forming surface 113 facing the outside of the lower mold body 100 and is connected to the linear cooling channel 200. The water outlet channel 220 has a water outlet 221, which is located on the bottom wall of the lower mold body 100.

[0033] For example, such as Figure 1 and Figure 2 As shown, the lower mold body 100 is located below the upper mold body 300. The upper side of the lower mold body 100 has a lower mold forming surface 110, which cooperates with the upper mold forming surface of the upper mold body 300 to complete the casting of the wheel hub. The lower mold forming surface 110 is provided with a lower mold center hole 111, a mounting hole forming surface 112, a spoke forming surface 113, and a spoke gap forming surface 114. The lower mold center hole 111 is located in the middle of the lower mold forming surface 110. The mounting hole forming surface 112 is distributed around the outer side of the lower mold center hole 111. The spoke forming surface 113 and the spoke gap forming surface 114 are arranged in a staggered order around the outer side of the mounting hole forming surface 112. The lower mold center hole 111 corresponds to the position of the main shaft mounting hole of the wheel hub. The mounting hole forming surface 112 corresponds to the position of the bolt mounting holes of the wheel hub. The spoke forming surface 113 corresponds to the position of the spokes of the wheel hub. The spoke gap forming surface 114 corresponds to the gap position between adjacent spokes.

[0034] Reference Figure 3 , Figure 4 The linear cooling channel 200 is located inside the lower mold body 100, below the spoke forming surface 113, allowing for heat dissipation at the spoke forming position. The water inlet channel 210 is located below the mounting hole forming surface 112 and connects to the linear cooling channel 200. The water inlet channel 210 has an inlet 211 located on the bottom wall of the lower mold body 100, allowing water to enter the linear cooling channel 200. The water outlet channel 220 is located below the end of the spoke forming surface 113 facing the outside of the lower mold body 100 and connects to the linear cooling channel 200. The water outlet channel 220 has an outlet 221 located on the bottom wall of the lower mold body 100, allowing water to exit the linear cooling channel 200, forming a circulating cooling channel in conjunction with an external circulating cooling device.

[0035] Reference Figure 1The utility model discloses a wheel hub mould adopts lower mould body 100, upper mould body 300 and side mould 400 cooperate and pour aluminum alloy low pressure wheel hub as an example.In actual work, lower mould body 100, upper mould body 300 and side mould 400 close die, and pour work is carried out.Aluminium liquid enters the wheel hub mould of the utility model simultaneously, and cooling water enters from water inlet 211, and then cooling water is discharged from water outlet 221, and the circulating cooling device of cooperation forms circulating cooling channel.

[0036] In the cooling process, since the single spoke forming surface 113 is cooled by the corresponding straight cooling water channel 200, the cooling path for the spoke position is shortened, and the cooling efficiency for the spoke position is improved.

[0037] Moreover, the water inlet channel 210 is arranged on the lower side of the mounting hole forming surface 112, corresponding to the intersection position of the hub intermediate spoke, so that the hot node can be preferentially cooled in the cooling process. Moreover, since the positions of the water inlet channels 210 corresponding to the spokes are concentrated in the middle of the lower mould body 100, the arrangement of the water inlet channel 210 external pipeline is facilitated, especially the device for increasing water pressure is more easily arranged to increase water flow, thereby improving the cooling efficiency.

[0038] In some embodiments of the utility model, with reference to Figure 5 , Figure 6 The lower side of the lower mould body 100 has a cooling position protruding portion 120, the straight cooling water channel 200 is located in the cooling position protruding portion 120, the water inlet 211 and the water outlet 221 are located on the lower side of the cooling position protruding portion 120, and the cooling position protruding portion 120 is designed to ensure that the straight cooling water channel 200 has sufficient structural strength.

[0039] In further embodiments of the utility model, with reference to Figure 7 The cross section of the straight cooling water channel 200 is circular, the shortest distance between the lower side of the straight cooling water channel 200 and the lower side wall of the cooling position protruding portion 120 is a, the shortest distance between the upper side of the straight cooling water channel 200 and the spoke forming surface 113 is b, the value range of a and b is a≥16mm and b≥18mm, so that the straight cooling water channel 200 has sufficient structural strength and ensures the cooling effect of the straight cooling water channel 200 on the spoke position.

[0040] In some embodiments of the utility model, with reference to Figure 4 The outer edge position of the lower side of the lower mould body 100 is provided with an outer positioning ring 130, so as to facilitate the positioning and installation of the lower mould body 100 on the pouring device.

[0041] In some embodiments of the utility model, the water outlet 221 is located at the inner side of the outer positioning ring 130, and after the lower mold body 100 is installed on the pouring device, the position of the water outlet 221 is not loose or deviated.

[0042] In some embodiments of the utility model, referring to Figure 1 , the outer edge of the upper side of the lower mold body 100 is provided with a positioning groove 140, and the lower side of the upper mold body 300 is provided with a positioning rib 310, the positioning groove 140 clamps the positioning rib 310, so that the lower mold body 100 and the upper mold body 300 are not loose or misaligned after being combined, thereby ensuring the pouring effect.

[0043] In some embodiments of the utility model, the hub mold further comprises a side mold 400, and the lower side of the side mold 400 is provided with a positioning recess 410. The outer side wall of the lower mold body 100 is provided with a positioning boss 160, and the positioning boss 160 clamps the positioning recess 410, so that the lower mold body 100 and the side mold 400 are not loose or misaligned after being combined, thereby ensuring the pouring effect.

[0044] In some embodiments of the utility model, referring to Figure 4 , the lower side of the lower mold center hole 111 is provided with an inner positioning ring 150, which not only facilitates the positioning and installation of the lower mold body 100 on the pouring device, but also ensures that the position of the water inlet 211 is not loose or deviated after the lower mold body 100 is installed on the pouring device.

[0045] In some embodiments of the utility model, referring to Figure 6 , the upper side of the water inlet channel 210 has an extension section 212, and the extension section 212 extends upward to the straight cooling water channel 200. The extension section 212 is matched with the installation hole forming surface 112, which can better cool the bolt installation hole position of the hub.

[0046] In some embodiments of the utility model, the outer side wall of the lower mold body 100 is provided with a water channel machining hole 230, the water channel machining hole 230 is communicated with the straight cooling water channel 200, and the water channel machining hole 230 is provided with a plug 240 for sealing, so that the drill bit can extend into the lower mold body 100 through the water channel machining hole 230 to drill the structure of the straight cooling water channel 200, thereby improving the machining efficiency. The plug 240 seals the water channel machining hole 230 to prevent the cooling water from leaking from the water channel machining hole 230.

[0047] In further embodiments of the utility model, the diameter of straight cooling water channel 200 is c, the diameter of water channel processing hole 230 is d, the diameter of plug 240 is same with the diameter of water channel processing hole 230, the value range of c, d is, d / c is greater than or equal to 1.25. In this way, after plug 240 seals water channel processing hole 230, plug 240 has enough structural strength to ensure the plugging effect.

[0048] In some specific embodiments of the utility model, the thickness of plug 240 is e, the value range of e is, e is greater than or equal to 8mm.

[0049] In some specific embodiments of the utility model, the diameter of water outlet 221 is f, the diameter of water inlet 211 is g, the value range of f, g is, f is greater than or equal to 6mm, g is greater than or equal to 8mm, to ensure the cooling water circulation efficiency.

[0050] According to the pouring device of the utility model embodiment, by adopting the lower mold water cooling structure for aluminum alloy hub casting, the complexity of the mold structure is reduced, the spoke position of the casting is cooled, and the pouring process is not affected, and the production efficiency is ensured.

[0051] Other configurations and operations of the mold structure according to the utility model embodiment are known to those skilled in the art, and will not be described in detail here.

[0052] The following refers to Figure 1 And Figure 2 A specific embodiment is described in detail below. It should be understood that the following description is only exemplary and is not a specific limitation of the utility model.

[0053] As shown in Figure 1 And Figure 2 The lower mold water cooling structure for aluminum alloy hub casting of the utility model embodiment includes an upper mold body 300, five side molds 400, a lower mold body 100, a straight cooling water channel 200, a water inlet channel 210 and a water outlet channel 220. The poured hub casting has five spoke bars.

[0054] The lower mold body 100 includes a lower mold forming surface 110, a cooling position convex part 120, an outer positioning ring 130, a positioning groove 140, an inner positioning ring 150 and a positioning boss 160. The lower mold forming surface 110 includes a lower mold center hole 111, a mounting hole forming surface 112, a spoke bar forming surface 113 and a spoke gap forming surface 114.

[0055] The linear cooling water channel 200 is located in the cooling position protrusion 120 of the lower mold body 100. The linear cooling water channel 200 is provided with an inlet water passage 210, an inlet water port 211, an extension section 212, an outlet water passage 220, an outlet water port 221, a water channel processing hole 230, and a plug 240 arranged on the water channel processing hole 230;

[0056] The upper mold body 300 is provided with a positioning rib 310 corresponding to the positioning groove 140 of the lower mold body 100.

[0057] The side mold 400 is provided with a positioning recess 410 corresponding to the positioning boss 160 of the lower mold body 100.

[0058] According to the lower mold water cooling structure applied to aluminum alloy hub casting, some effects can be achieved, the spoke forming surface 113 is cooled by the corresponding linear cooling water channel 200, the cooling path for the spoke position is shortened, the cooling efficiency for the spoke position is improved, the inlet water passage 210 is arranged on the lower side of the mounting hole forming surface 112, corresponding to the intersection position of the hub middle spoke, the heat node can be preferentially cooled in the cooling process, the inlet water passage 210 is arranged in the middle of the lower mold body 100, the arrangement of the inlet water passage 210 external pipeline is facilitated, especially the device for increasing water pressure is arranged to increase the water flow, and the cooling efficiency is improved.

[0059] In the description of the present specification, the description of the terms “some embodiments” or “it is conceivable that” and the like means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A lower mold water cooling structure applied to aluminum alloy wheel hub casting, characterized in that, The application relates to a lower mold body (100) which is arranged below an upper mold body (300), wherein the lower mold body (100) is provided with a lower mold forming surface (110) on the upper side, the lower mold forming surface (110) is provided with a lower mold center hole (111), an installation hole forming surface (112), a spoke strip forming surface (113) and a spoke gap forming surface (114), the lower mold center hole (111) is arranged at the middle position of the lower mold forming surface (110), the installation hole forming surface (112) is arranged around the outside of the lower mold center hole (111), the spoke strip forming surface (113) and the spoke gap forming surface (114) are arranged around the outside of the installation hole forming surface (112), and the spoke strip forming surface (113) and the spoke gap forming surface (114) are arranged in a one-to-one interval arrangement sequence. A straight-line cooling water channel (200) is arranged in the lower mold body (100), and the straight-line cooling water channel (200) is arranged at a position below the spoke strip forming surface (113). A water inlet channel (210) is arranged at the lower side of the installation hole forming surface (112), the water inlet channel (210) is communicated with the straight-line cooling water channel (200), the water inlet channel (210) is provided with a water inlet (211), and the water inlet (211) is arranged on the bottom wall of the lower mold body (100). A water outlet channel (220) is arranged at the lower side of the end of the spoke strip forming surface (113) which faces the outside of the lower mold body (100), the water outlet channel (220) is communicated with the straight-line cooling water channel (200), the water outlet channel (220) is provided with a water outlet (221), and the water outlet (221) is arranged on the bottom wall of the lower mold body (100). The lower side of the lower mold body (100) is provided with a cooling position convex part (120), the straight-line cooling water channel (200) is arranged in the cooling position convex part (120), and the water inlet (211) and the water outlet (221) are arranged at the lower side of the cooling position convex part (120).

2. The lower mold water cooling structure for aluminum alloy wheel hub casting according to claim 1, characterized by, The cross section of the straight-line cooling water channel (200) is circular, the shortest distance between the lower side of the straight-line cooling water channel (200) and the lower side wall of the cooling position convex part (120) is a, the shortest distance between the upper side of the straight-line cooling water channel (200) and the spoke strip forming surface (113) is b, and the values of a and b are in the range of a>=16mm and b>=18mm.

3. The water cooling structure of the lower mold applied to the casting of an aluminum alloy wheel hub according to claim 2, characterized in that, An outer positioning ring (130) is arranged at the outer edge position of the lower side of the lower mold body (100).

4. The lower mold water cooling structure for aluminum alloy wheel hub casting according to claim 1, characterized by, The water outlet (221) is arranged at the inner side of the outer positioning ring (130).

5. The water cooling structure of the lower mold applied to the casting of aluminum alloy wheel hub according to claim 4, characterized in that, An alignment groove (140) is arranged at the outer edge position of the upper side of the lower mold body (100), the lower side of the upper mold body (300) is provided with an alignment rib (310), and the alignment groove (140) clamps the alignment rib (310).

6. The lower mold water cooling structure for aluminum alloy wheel hub casting according to claim 1, characterized by, An inner positioning ring (150) is arranged at the lower side of the lower mold center hole (111).

7. The lower mold water cooling structure for aluminum alloy wheel hub casting according to claim 1, characterized by, The upper side of the water inlet channel (210) is provided with an extension section (212), and the extension section (212) extends upwards beyond the straight-line cooling water channel (200).

8. The water cooling structure of the lower mold applied to the casting of aluminum alloy wheel hub according to claim 1, characterized in that, ​ 9. The lower mold water cooling structure for aluminum alloy wheel hub casting according to claim 1, characterized by, The lower mold body (100) is provided with a water channel processing hole (230) on the outer side wall, the water channel processing hole (230) is communicated with the straight-line cooling water channel (200), and the water channel processing hole (230) is provided with a plug (240) for sealing.

10. The water cooling structure of the lower mold applied to the casting of aluminum alloy wheel hub according to claim 9, wherein, The diameter of the straight-line cooling water channel (200) is c, the diameter of the water channel processing hole (230) is d, the diameter of the plug (240) is the same as that of the water channel processing hole (230), and the value range of c and d is d / c≥1.25.

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