Two-piece type truck aluminum alloy hub middle plate casting mold

Abstract

The utility model provides a two-piece type truck aluminum alloy hub middle plate casting mold. The two-piece type truck aluminum alloy hub middle plate casting mold comprises an upper pressing mold, a lower pressing mold, an upper locking ring, a lower locking ring and four lateral locking blocks. When the upper pressing mold and the lower pressing mold are assembled and closed, the positioning pins and the positioning pin holes are used for positioning, accurate mold closing of the upper pressing mold and the lower pressing mold is achieved, and the upper locking ring and the lower locking ring which are buckled with each other are installed on the periphery of the outer edge of the upper pressing mold and the periphery of the outer edge of the lower pressing mold after mold closing. The upper locking ring and the lower locking ring are locked, the lateral locking blocks are installed on the outer edges of the locked upper locking ring and the lower locking ring, the lateral locking blocks lock the locked upper locking ring and the lower locking ring under the action of external force, the mold closing stability between the upper pressing mold and the lower pressing mold is guaranteed, the upper pressing mold and the lower pressing mold can be ejected out downwards through an ejector rod in the subsequent demolding process, and therefore the mold closing stability is guaranteed. And the formed aluminum alloy hub middle plate of the truck is rapidly ejected out downwards, and demolding is simple and rapid.

Description

Technical Field

[0001] This utility model relates to the field of automotive aluminum alloy wheel manufacturing technology, specifically to a two-piece casting mold for the middle plate of a Kaba vehicle aluminum alloy wheel. Background Technology

[0002] The wheel hubs of heavy-duty vehicles such as trucks and buses are collectively referred to as Kaba wheel hubs. Based on the material, they can be classified as steel Kaba wheel hubs and aluminum alloy Kaba wheel hubs. Based on the structure and manufacturing process, they can be roughly divided into integral forging type, integral casting type (including pure casting integral type and integral casting-rotation type) and composite type (including two-piece and multi-piece types). Among them, integral forging type has a higher cost, integral casting type has been developed and produced by many companies, and multi-piece composite type has a relatively complex process.

[0003] The existing casting molds used to produce the two-piece Kaba wheel hub plate are relatively complex in structure and have high production costs. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a two-piece aluminum alloy wheel hub middle plate casting mold for Kaba vehicles, so as to solve the problem that the existing casting molds used to produce two-piece Kaba vehicle wheel hub middle plates have a relatively complex structure and high production cost.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This application provides a two-piece casting mold for the aluminum alloy wheel hub middle plate of a Kaba vehicle, including an upper mold, a lower mold, an upper locking ring, a lower locking ring, and four lateral locking blocks. The upper mold includes an upper template, a push rod, a push rod pressure plate, a push rod plate, a push rod stop block, and a top template. The push rod pressure plate is fixedly installed on the bottom end face of the upper template, and the top end of the push rod is fixedly installed on the bottom end face of the push rod pressure plate. The other end of the push rod extends vertically downward. The top template has a vertically penetrating positioning pin hole, and the bottom end face of the push rod stop block is attached to... The top surface of the positioning pin hole is aligned with the top surface of the positioning pin hole. The push rod stop block is coaxial with the positioning pin hole. The lower pressing mold includes a base plate, a triangular block, and a positioning pin. The triangular block extends upward from the top surface of the base plate. The positioning pin is fixedly installed on the top surface of the triangular block. The positioning pin is coaxial with the positioning pin hole. The upper locking ring and the lower locking ring are respectively arranged on the outer edges of the upper template and the base plate that are in contact with each other. The four lateral locking blocks are spaced apart along the cylindrical direction and fastened to the outer edges of the mating upper locking ring and the lower locking ring.

[0007] Furthermore, the top rod plate is fixedly installed on the bottom end face of the top rod pressure plate, and the top rod stop block is fixedly installed on the bottom end face of the top rod pressure plate.

[0008] Furthermore, the lateral locking block engages with the outer surfaces of the upper and lower locking rings after mold closing, and the lateral locking block is used to prevent the upper and lower locking rings from disengaging after mold closing.

[0009] Furthermore, the outer edges of the upper and lower locking rings are provided with tapered mold-closing portions, the outer dimensions of which gradually increase from the outside to the inside, and the lateral locking block is provided with a locking groove, the outer dimensions of which gradually increase from the inside to the outside.

[0010] The beneficial effects of this utility model are as follows:

[0011] By employing the aforementioned two-piece casting mold for the aluminum alloy wheel hub of the Kaba vehicle, a vertically extending push rod is set on the upper mold, and a top template is installed on the push rod. The top template has vertically penetrating positioning pin holes, and positioning pins are installed on the lower template. When the upper and lower molds are assembled and closed, the positioning pins and positioning pin holes are used for positioning, achieving precise mold closing between the upper and lower molds. Furthermore, interlocking upper and lower locking rings are installed around the outer edges of the closed upper and lower molds, and lateral locking blocks are installed on the outer edges of the locked upper and lower locking rings. Under the action of external force, the lateral locking blocks lock the locked upper and lower locking rings, ensuring the mold closing stability between the upper and lower molds. In the subsequent demolding process, the molded aluminum alloy wheel hub middle plate of the Kaba vehicle can be quickly ejected downwards by the push rod, making demolding simple and fast. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the assembly structure of the two-piece aluminum alloy wheel hub casting mold for the Kaba vehicle in this embodiment of the application.

[0013] Figure 2 This is an exploded view of the installation and assembly structure of the two-piece aluminum alloy wheel hub casting mold for the Kaba vehicle in this embodiment of the application.

[0014] Figure 3 This is a schematic diagram of the mold closing, positioning, and ejection mechanism on the two-piece aluminum alloy wheel hub casting mold of the Kaba vehicle in this embodiment of the application.

[0015] Figure 4 This is a schematic diagram of the structural position of the mold-closing positioning triangle block on the base plate in an embodiment of this application.

[0016] Figure 5 This is a schematic diagram illustrating the structural principle of the lateral locking block engaging with the outer edges of the upper and lower locking rings in an embodiment of this application.

[0017] Figure 6 This is a schematic diagram of the mold-closing positioning triangle block in the embodiments of this application.

[0018] Figure 7 This is a schematic diagram of the lateral locking block in an embodiment of this application.

[0019] Figure 8 This is a schematic diagram of the upper locking ring (or lower locking ring) in the embodiments of this application.

[0020] In the picture:

[0021] 1- Casting mold;

[0022] 2-Medium plate;

[0023] 3-Side locking block, 31-Engaging groove;

[0024] 4-Use the template;

[0025] 5-Top rod pressure plate;

[0026] 6-Top rod plate;

[0027] 7-Top rod;

[0028] 8-Top rod stop block;

[0029] 9-Top template, 91-Positioning pin hole;

[0030] 10-Positioning pin;

[0031] 11-Triangle block;

[0032] 12-Base plate;

[0033] 13-Locking ring;

[0034] 14-Lower locking ring. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0036] See appendix Figure 1 To be continued Figure 3As shown, this embodiment provides a two-piece casting mold 1 for the aluminum alloy wheel hub of a Kaba vehicle, including an upper mold, a lower mold, an upper locking ring 13, a lower locking ring 14, and four lateral locking blocks 3. The upper and lower molds cooperate with each other to perform mold closing or demolding operations. The upper locking ring 13 and the lower locking ring 14 are respectively located above and below the outer edges of the upper and lower molds after mold closing. The outer edges of the upper locking ring 13 and the lower locking ring 14 fit together to ensure a tight fit between the upper and lower molds when they are closed. The four lateral locking blocks 3 are evenly spaced along the circumferential direction on the outer edges of the interlocking upper locking ring 13 and lower locking ring 14. The lateral locking blocks 3 are engaged and connected to the outer surfaces of the upper locking ring 13 and lower locking ring 14 after mold closing, and are used to prevent the upper locking ring 13 and lower locking ring 14 from disengaging after mold closing.

[0037] See attached document Figure 2 and attached Figure 3 As shown, in this embodiment, the upper mold includes an upper template 4, a push rod pressure plate 5, a push rod plate 6, a push rod 7, a push rod stop block 8, and a top template 9. The push rod pressure plate 5 is fixedly installed on the bottom end face of the upper template 4 (the push rod pressure plate 5, push rod 7, and push rod plate 6 are a component that can move up and down within a certain range below the lower template 4, and its function is to eject the casting). The push rod plate 6 is fixedly installed on the bottom end face of the push rod pressure plate 5. The push rod stop block 8 is fixedly installed on the bottom end face of the push rod pressure plate 5. The top template 9 is fixedly installed on the push rod 7. The push rod 7 is installed between the push rod plate 6 and the push rod pressure plate 5. The top end of the push rod 7 is fixedly installed on the bottom end face of the push rod pressure plate 5. The other end of the push rod 7 passes through the push rod plate 6 and extends vertically downward. The top template 9 is provided with a vertically penetrating positioning pin hole 91. The bottom end face of the push rod stop block 8 is attached to the top end face of the positioning pin hole 91. The push rod stop block 8 and the positioning pin hole 91 are coaxial.

[0038] In this embodiment, the function of the ejector stop block 8 is as follows: when the upper mold closes with the lower mold downwards and reaches the positioning pin 10, the ejection mechanism composed of the ejector pressure plate 5, ejector 7, and ejector plate 6 stops.

[0039] In this embodiment, the lower pressing mold includes a base plate 12, triangular blocks 11, and positioning pins 10. The triangular blocks 11 extend upward from the top surface of the base plate 12. The four triangular blocks 11 provide spatial support for the four positioning pins 10. The positioning pins 10 are fixedly installed on the top of the triangular blocks 11. The positioning pins 10 and the positioning pin holes 91 are coaxially arranged. The upper locking ring 13 and the lower locking ring 14 are respectively arranged on the outer edges of the upper template 4 and the base plate 12 that are in contact with each other. The four lateral locking blocks 3 are spaced along the cylindrical direction and fastened to the outer edges of the cooperating upper locking ring 13 and lower locking ring 14.

[0040] By utilizing a vertically extending ejector rod 7 on the upper mold, a top template 9 is installed on the ejector rod 7, and a vertically penetrating positioning pin hole 91 is provided on the top template 9. A positioning pin 10 is installed on the lower template. When the upper and lower molds are assembled and closed, the positioning pin 10 and the positioning pin hole 91 are used for positioning, achieving precise mold closing of the upper and lower molds. Furthermore, by installing interlocking upper locking rings 13 and lower locking rings 14 around the outer edges of the upper and lower molds after mold closing, and installing lateral locking blocks 3 on the outer edges of the locked upper locking rings 13 and lower locking rings 14, the lateral locking blocks 3 lock the locked upper locking rings 13 and lower locking rings 14 under the action of external force, ensuring the mold closing stability between the upper and lower molds. In the subsequent demolding process, the ejector rod 7 can be used to push downwards, quickly pushing the formed Kaba vehicle aluminum alloy wheel hub middle plate 2 downwards, making demolding simple and quick.

[0041] See attached document Figure 5 To be continued Figure 8 As shown, in this embodiment, the outer edges of the upper locking ring 13 and the lower locking ring 14 are provided with conical mold-closing parts. The outer dimensions of the mold-closing parts gradually increase from the outer to the inner outer dimensions. The lateral locking block 3 is provided with a locking groove 31. The outer dimensions of the locking groove 31 gradually increase from the inner to the outer outer dimensions.

[0042] By adopting the above structure, the lateral locking block 3 cooperates with the upper locking ring 13 and the lower locking ring 14 after they are engaged. The inner wall of the groove 31 of the lateral locking block 3 engages with the outer surface of the engaged upper locking ring 13 and the lower locking ring 14. That is, under the action of external thrust (the push plate of the machine side mold cylinder), the lateral locking block 3 applies a mutual contacting force to the engaged upper locking ring 13 and the lower locking ring 14 (see attached diagram). Figure 5 This prevents the upper locking ring 13 and the lower locking ring 14 from disengaging after being engaged.

[0043] See attached document Figure 3 Appendix Figure 4 and attached Figure 6 As shown, the positioning pin 10 is located on four triangular blocks 11, and the four triangular blocks 11 are installed on the base plate 12 at intervals.

[0044] See attached document Figure 1 To be continued Figure 3 As shown, in order to better understand the two-piece aluminum alloy wheel hub casting mold of the Kaba vehicle in this embodiment, its working process will be briefly explained below:

[0045] During mold closing, the upper mold moves vertically downward under external force. When the ejector rod stop block 8 reaches the positioning pin 10, the upper mold stops moving downward, and the ejector rod 7 stops. At this time, the upper locking ring 13 and the lower locking ring 14 also synchronously follow the upper and lower molds and come into contact. Subsequently, under external force, the four side locking blocks 3 are engaged circumferentially around the outer edges of the upper locking ring 13 and the lower locking ring 14 after mold closing, further pressing and fitting the engaged upper locking ring 13 and the lower locking ring 14 together. Next, the two-piece Kaba vehicle aluminum alloy wheel hub middle plate 2 is cast and formed, completing the two-piece Kaba vehicle. After the aluminum alloy wheel hub plate 2 is cast, and the casting solidifies, the upper and lower molds open. The upper mold assembly module drives the casting away from the lower mold assembly module. When it rises to a certain height, the machine has a hydraulic cylinder ejection mechanism (understandably, since the hydraulic cylinder ejection mechanism is existing technology, it is not shown in the attached drawings of the instruction manual and is not described in detail in the instruction manual). Through the upper template part, it pushes against the ejector plate 5 (the ejection movable assembly composed of ejector 7, ejector plate 5, and ejector plate 6, where ejector plate 6 is a movable block that can move up and down within a certain range), ejecting the casting. The ejected casting falls onto a rotating tray on the machine.

[0046] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A two-piece casting mold for the aluminum alloy wheel hub middle plate of a Kaba vehicle, characterized in that, The assembly includes an upper die, a lower die, an upper locking ring, a lower locking ring, and four lateral locking blocks. The upper die includes an upper template, a push rod, a push rod pressure plate, a push rod plate, a push rod stop block, and a top template. The push rod pressure plate is fixedly installed on the bottom end face of the upper template, and the top end of the push rod is fixedly installed on the bottom end face of the push rod pressure plate. The other end of the push rod extends vertically downward. The top template has a vertically penetrating positioning pin hole, and the bottom end face of the push rod stop block is attached to the top end face of the positioning pin hole. The push rod stop block is coaxial with the positioning pin hole. The lower pressing mold includes a base plate, a triangular block and a positioning pin. The triangular block extends upward from the top surface of the base plate. The positioning pin is fixedly installed on the top of the triangular block. The positioning pin is coaxial with the positioning pin hole. The upper locking ring and the lower locking ring are respectively arranged on the outer edges of the upper template and the base plate that are in contact with each other. The four lateral locking blocks are spaced along the cylindrical direction and fastened to the outer edges of the mating upper locking ring and the lower locking ring.

2. The two-piece casting mold for the aluminum alloy wheel hub middle plate of a Kaba vehicle according to claim 1, characterized in that, The top rod plate is fixedly installed on the bottom end face of the top rod pressure plate, and the top rod stop block is fixedly installed on the bottom end face of the top rod pressure plate.

3. A two-piece casting mold for the aluminum alloy wheel hub middle plate of a Kaba vehicle according to claim 1 or 2, characterized in that, The lateral locking block engages with the outer surfaces of the upper and lower locking rings after mold closing, and the lateral locking block is used to prevent the upper and lower locking rings from disengaging after mold closing.

4. The two-piece aluminum alloy wheel hub casting mold for a Kaba vehicle according to claim 3, characterized in that, The outer edges of the upper and lower locking rings are provided with tapered mold-closing portions. The outer dimensions of the mold-closing portions gradually increase from the outer to the inner dimensions. The lateral locking block is provided with a locking groove. The outer dimensions of the locking groove opening gradually increase from the inner to the outer dimensions.

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