Aluminum alloy wheel mold water channel structure and mold body

Abstract

The utility model provides an aluminum alloy wheel mold water channel structure and a mold body, and belongs to the technical field of wheel molds, the aluminum alloy wheel mold water channel structure comprises a plurality of groove-shaped water channel sections and a plurality of hole-shaped water channel sections, and the groove-shaped water channel sections and the hole-shaped water channel sections are alternately communicated to form an annular water channel connected end to end; the upper end of the groove-shaped water channel section is open, and a cover plate used for sealing is arranged at the open end of the groove-shaped water channel section. According to the water channel structure of the aluminum alloy wheel mold, the groove-shaped water channel sections are arranged at intervals, and every two adjacent groove-shaped water channel sections are communicated through the hole-shaped water channel section, so that the coverage range of the cover plate is reduced, and the welding area of the cover plate and the mold is reduced; therefore, the problem that large internal stress is generated by the cover plate and the welding bead due to large-area welding is avoided, the structural strength of the mold is improved, and the service life of the mold is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel molds, and more specifically, relates to a water channel structure and a mold body of an aluminum alloy wheel mold. Background Art

[0002] At present, the water channels of aluminum alloy wheel molds are machined in a whole circle. The water channels are in a groove shape, and an annular cover plate is covered on the upper end of the water channels. The cover plate is of an integral type, and the cover plate is welded to the lower mold body in a whole circle. The large-area welding causes large internal stresses in the cover plate and the weld bead. During the use of the mold, it is extremely cold and extremely hot, generating large thermal stresses. The interaction of these stresses and the stresses generated by welding can easily cause cracks in the weld bead and the cover plate, resulting in water leakage in the water channels. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a water channel structure and a mold body of an aluminum alloy wheel mold, aiming to solve the problem of large welding area between the cover plate and the lower mold body.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: providing a water channel structure of an aluminum alloy wheel mold, which includes multiple groove-shaped water channel segments and multiple hole-shaped water channel segments. The groove-shaped water channel segments and the hole-shaped water channel segments are alternately connected to form a ring-shaped water channel that is connected end to end. The upper end of the groove-shaped water channel segment is open, and a cover plate for sealing is provided at the open end of the groove-shaped water channel segment.

[0005] As another embodiment of this application, the length of the groove-shaped water channel segment is the same as the length of the hole-shaped water channel segment.

[0006] As another embodiment of this application, the number of the groove-shaped water channel segments is equal to the number of the hole-shaped water channel segments.

[0007] As another embodiment of this application, the flow-through area of the groove-shaped water channel segment is larger than the flow-through area of the hole-shaped water channel segment.

[0008] As another embodiment of this application, the width of the groove-shaped water channel is larger than the diameter of the hole-shaped water channel segment.

[0009] As another embodiment of this application, the depth of the groove-shaped water channel is larger than the diameter of the hole-shaped water channel segment.

[0010] As another embodiment of this application, it further includes two pipe joints arranged at intervals. The lower end of the pipe joint is connected to the groove-shaped water channel segment or the hole-shaped water channel segment. The two pipe joints are symmetrically arranged along the axis of symmetry of the aluminum alloy wheel mold.

[0011] As another embodiment of this application, a first limiting step is provided in a ring shape at the groove opening, and the lower end surface of the cover plate fits on the first limiting step.

[0012] As another embodiment of the present application, a second limiting step is provided around the notch. The second limiting step is located outside the first limiting step, and the end face of the second limiting step is higher than the end face of the first limiting step; the upper end face of the cover plate is flush with the end face of the second limiting step.

[0013] The beneficial effect of the water channel structure of the aluminum alloy wheel mold provided by the present utility model lies in that: compared with the prior art, the water channel structure of the aluminum alloy wheel mold of the present utility model, the annular water channel structure includes alternately arranged groove-shaped water channel sections and hole-shaped water channel sections. By arranging multiple groove-shaped water channel sections at intervals, and connecting them through hole-shaped water channel sections between adjacent two groove-shaped water channel sections, the coverage range of the cover plate is reduced, and the welding area between the cover plate and the mold is reduced, thereby avoiding the problem of large internal stress generated in the cover plate and the weld bead due to large-area welding, and improving the structural strength and service life of the mold.

[0014] A mold body is further provided, including the above-mentioned water channel structure of the aluminum alloy wheel mold.

[0015] The beneficial effect of the mold body provided by the present utility model lies in that: compared with the prior art, for the mold body of the present utility model, by setting the internal annular water channel structure as alternately arranged groove-shaped water channel sections and hole-shaped water channel sections, arranging multiple groove-shaped water channel sections at intervals, and connecting them through hole-shaped water channel sections between adjacent two groove-shaped water channel sections, the coverage range of the cover plate is reduced, and the welding area between the cover plate and the mold is reduced, thereby avoiding the problem of large internal stress generated in the cover plate and the weld bead due to large-area welding, improving the structural strength and service life of the mold body. In addition, the later use and maintenance cost of the mold body is significantly reduced. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of the mold body provided by the embodiment of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the groove-shaped water channel section provided by the embodiment of the present utility model;

[0019] Figure 3 It is a trajectory schematic diagram of the water channel structure of the aluminum alloy wheel mold provided by the embodiment of the present utility model.

[0020] In the figure: 1. Cover plate; 2. Pipe joint; 3. Grooved water channel section; 4. Through hole; 5. Hole-shaped water channel section. Detailed implementation manners

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] Please refer to Figures 1 to 3 , and now the water channel structure of the aluminum alloy wheel mold and the mold body provided by the present utility model will be described. The water channel structure of the aluminum alloy wheel mold includes multiple grooved water channel sections 3 and multiple hole-shaped water channel sections 5. The grooved water channel sections 3 and the hole-shaped water channel sections 5 are alternately connected to form a ring-shaped water channel that is connected end to end; the upper end of the grooved water channel section 3 is open, and a cover plate 1 for sealing is provided at the open end of the grooved water channel section 3.

[0023] Compared with the prior art, the water channel structure of the aluminum alloy wheel mold provided by the present utility model has a ring-shaped water channel structure including alternately arranged grooved water channel sections 3 and hole-shaped water channel sections 5. By arranging multiple grooved water channel sections 3 at intervals and connecting them through hole-shaped water channel sections 5 between adjacent two grooved water channel sections 3, the coverage range of the cover plate 1 is reduced, and the welding area between the cover plate 1 and the mold is reduced, thereby avoiding the problem of large internal stress generated in the cover plate 1 and the weld bead due to large-area welding, and improving the structural strength and service life of the mold.

[0024] Specifically, the grooved water channel section 3 is processed by numerical control milling to form a grooved structure with an upwardly curved opening. Multiple grooved water channel sections 3 are of equal length and are equally spaced. The hole-shaped water channel section 5 is formed by electrode machining between adjacent two grooved water channel sections 3, and the two end parts of the hole-shaped water channel section 5 are respectively connected to the inner cavities of the adjacent two grooved water channel sections 3. The processing of the hole-shaped water channel section 5 ensures the overall through state of the water channel, reduces the coverage range of the cover plate 1 and the welding area, and effectively reduces the welding stress. The electrode machining position retains the strength of the mold body and can withstand greater thermal stress, thereby reducing the working pressure of the cover plate 1 and the weld bead. By arranging the grooved water channel sections 3 at intervals, the length of continuous welding is reduced, and the problem of excessive stress in the welding area is avoided.

[0025] In some possible embodiments, please refer to Figure 1 , the length of the grooved water channel section 3 is the same as that of the hole-shaped water channel section 5. The lengths of the welding section and the non-welding section are the same, which can improve the uniformity of the distribution of welding stress.

[0026] The number of the grooved water channel sections 3 is equal to that of the hole-shaped water channel sections 5. The number of the grooved water channel sections 3 and the hole-shaped water channel sections 5 is the same, and the coverage angles are the same. For exampleFigures 1 to 3 As shown, the entire annular water channel is evenly divided into six segments, including three trough-shaped water channel segments 3 and three hole-shaped water channel segments 5. The above three trough-shaped water channel segments 3 and three hole-shaped water channel segments 5 are alternately connected. The length of each water channel segment is the same. Dividing the annular water channel into an even number of segments evenly can distribute the welding stress evenly.

[0027] The flow-through area of the trough-shaped water channel segment 3 is larger than that of the hole-shaped water channel segment 5. Specifically, the depth and width of the trough-shaped water channel segment 3 are both larger than the diameter of the hole-shaped water channel segment 5. Due to the operation limit of electrode processing, the lower end of the hole-shaped water channel segment 5 is located above the trough bottom of the trough-shaped water channel segment 3 and there is a limiting distance from the trough bottom. There is a limiting distance between the upper end of the hole-shaped water channel segment 5 and the cover plate 1. Correspondingly, a limiting distance also needs to be left between the two side edges of the hole-shaped water channel segment 5 and the two side walls of the trough-shaped water channel segment 3 to facilitate electrode processing operations.

[0028] In some possible embodiments, please refer to Figure 1 , the water channel structure further includes two pipe joints 2 arranged at intervals. The lower ends of the pipe joints 2 communicate with the trough-shaped water channel segment 3 or the hole-shaped water channel segment 5; the two pipe joints 2 are symmetrically arranged along the axis of symmetry of the aluminum alloy wheel mold.

[0029] The two pipe joints 2 serve as the liquid inlet pipe joint 2 and the liquid outlet pipe joint 2 respectively, and are correspondingly connected to the liquid inlet pipe and the liquid outlet pipe. The two pipe joints 2 are symmetrically arranged, dividing the annular water channel structure into two semi-circular water channel structures. The cooling liquid enters the annular water channel from the water inlet pipe joint 2 and flows to both sides along the structure of the annular water channel. After passing through the two semi-circular water channel structures on both sides respectively, the cooling liquid mixes at the lower end of the liquid outlet pipe joint 2, and the mixed cooling liquid flows out from the liquid outlet pipe joint 2 to the liquid outlet pipe.

[0030] The cooling liquid can be cooling water.

[0031] In some possible embodiments, please refer to Figure 1 and Figure 2 , a first limiting step is provided around the notch, and the lower end surface of the cover plate 1 fits on the first limiting step.

[0032] A first relief groove is provided at the notch of the trough-shaped water channel segment 3. The inner side of the first relief groove communicates with the notch of the trough-shaped water channel segment 3; the first relief groove forms a first limiting step at the notch. There is a first limiting step at the notch, and the first limiting step extends outward along the trajectory of the notch. The upper end surface of the first limiting step is lower than the upper surface of the mold, and the distance from the first limiting step to the upper surface of the mold is greater than the thickness of the cover plate 1. The cover plate 1 covers above the notch, and the edge of the cover plate 1 overlaps on the first limiting step and is welded to the first limiting step.

[0033] In addition, a second limiting step is provided around the notch. The second limiting step is located outside the first limiting step, and the end face of the second limiting step is higher than the end face of the first limiting step; the upper end face of the cover plate 1 is flush with the end face of the second limiting step.

[0034] Specifically, a second relief groove is further provided at the notch of the groove-shaped water channel section 3. The bottom of the second relief groove is located above the first limiting step, and the inner side of the second relief groove communicates with the notch of the groove-shaped water channel section 3; the bottom of the second relief groove forms the second limiting step. The second limiting step is located outside the first limiting step and above the first limiting step, and the upper end face of the second limiting step is lower than the upper surface of the mold. The cover plate 1 covers above the notch, the edge of the cover plate 1 fits against the side wall of the second relief groove and is welded to the side wall of the second relief groove, and the upper end of the cover plate 1 is flush with the second limiting step.

[0035] The pipe joint 2 can communicate with the groove-shaped water channel section 3 or the hole-shaped water channel section 5. When the pipe joint 2 communicates with the groove-shaped water channel section 3, a first through hole 4 is provided on the cover plate 1. The end of the pipe joint 2 penetrates through the first through hole 4, and the pipe joint 2 is welded to the cover plate 1. The circumference of the pipe joint 2 and the side wall of the first through hole 4 are sealed by welding. When the pipe joint 2 communicates with the hole-shaped water channel section 5, a second through hole 4 is opened at the upper end of the hole-shaped water channel section 5, and the upper end of the second through hole 4 extends to the upper surface of the mold. The lower end of the pipe joint 2 extends to the lower end of the second through hole 4 and communicates with the inner cavity of the hole-shaped water channel section 5. The pipe joint 2 is welded and fixed to the mold, and the side wall of the pipe joint 2 and the second through hole 4 are sealed by welding.

[0036] A mold body is also provided, including the above-mentioned water channel structure of the aluminum alloy wheel mold.

[0037] Compared with the prior art, the mold body provided by the present utility model sets the internal annular water channel structure as alternating groove-shaped water channel sections 3 and hole-shaped water channel sections 5. By arranging multiple groove-shaped water channel sections 3 at intervals and communicating between adjacent two groove-shaped water channel sections 3 through the hole-shaped water channel section 5, the coverage range of the cover plate 1 is reduced, and the welding area between the cover plate 1 and the mold is reduced, thereby avoiding the problem of large internal stress generated in the cover plate 1 and the weld bead due to large-area welding, improving the structural strength and service life of the mold body. In addition, the later use and maintenance cost of the mold body is significantly reduced.

[0038] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. The water channel structure of an aluminum alloy wheel mold, characterized in that It includes multiple groove-shaped water channel segments (3) and multiple hole-shaped water channel segments (5). The groove-shaped water channel segments (3) and the hole-shaped water channel segments (5) are alternately connected to form a closed-loop water channel connected end to end; and the lengths and quantities of the groove-shaped water channel segments and the hole-shaped water channel segments are the same; the upper end of the groove-shaped water channel segment (3) is open, and a cover plate (1) for sealing is provided at the open end of the groove-shaped water channel segment (3); the flow-through area of the groove-shaped water channel segment (3) is larger than the flow-through area of the hole-shaped water channel segment (5); it also includes two pipe joints (2) arranged at intervals, and the two pipe joints (2) are symmetrically arranged along the axis of symmetry of the aluminum alloy wheel mold.

2. The water channel structure of the aluminum alloy wheel mold according to claim 1, characterized in that The width of the groove-shaped water channel is larger than the diameter of the hole-shaped water channel segment (5).

3. The water channel structure of the aluminum alloy wheel mold according to claim 1, characterized in that, The depth of the groove-shaped water channel is larger than the diameter of the hole-shaped water channel segment (5).

4. The water channel structure of the aluminum alloy wheel mold according to claim 1, characterized in that The lower end of the pipe joint (2) is connected to the groove-shaped water channel segment (3) or the hole-shaped water channel segment (5).

5. The water channel structure of the aluminum alloy wheel mold according to claim 1, characterized in that, A first limiting step is provided around the groove opening of the groove-shaped water channel segment (3), and the lower end surface of the cover plate (1) fits on the first limiting step.

6. The water channel structure of the aluminum alloy wheel mold according to claim 5, wherein, A second limiting step is provided around the groove opening of the groove-shaped water channel segment (3), the second limiting step is located outside the first limiting step, and the end surface of the second limiting step is higher than the end surface of the first limiting step; the upper end surface of the cover plate (1) is flush with the end surface of the second limiting step.

7. Mold body, characterized in that, It includes the water channel structure of the aluminum alloy wheel mold according to any one of claims 1-6.

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