Hub circle pressing equipment

Abstract

The utility model relates to hub circle pressing equipment which comprises a machine body, a mold pressing mandrel fixedly arranged on the machine body, a first lifting driving device fixedly connected with the machine body, a first mold base fixedly connected to the driving end of the first lifting driving device, an upper mold fixedly connected with the first mold base and of an arc-shaped structure with a downward opening right facing the mold pressing mandrel. The second lifting driving device is fixedly connected with the machine body, the second die holder is fixedly connected to the driving end of the second lifting driving device, the lower die is fixedly connected with the second die holder, and the lower die is of an arc-shaped structure with an upward opening and right faces the die pressing mandrel. The upper mold and the lower mold can be closed into a circle around the peripheral side of the mold pressing mandrel, and the two arc-shaped ends of the lower mold are configured to be equal in height so as to form a platform for placing a flat plate material. According to the utility model, the number of equipment required in the hub rounding manufacturing process is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to wheel manufacturing technology, specifically to a wheel hub rounding device. Background Technology

[0002] Wheels are important components of automobiles, consisting of spokes and rims welded together. The rims are usually made by rolling flat steel plates into a circle, then pressing and re-rounding them. This existing technology requires multiple machines, has a long manufacturing process, is inefficient, and is relatively expensive. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a wheel hub rounding device capable of rapidly rounding flat steel plates.

[0004] This utility model is achieved using the following technical solution:

[0005] This utility model proposes a wheel hub rounding device, including a vertically arranged machine body. A molding mandrel is fixedly mounted on the machine body, extending horizontally and protruding from the machine body. An upper molding part and a lower molding part are respectively provided above and below the molding mandrel. The upper molding part includes a first lifting drive device, a first mold base, and an upper mold. The first lifting drive device is fixedly connected to the machine body, the first mold base is fixedly connected to the drive end of the first lifting drive device, and the upper mold is fixedly connected to the first mold base. The upper mold has an arc-shaped structure with its opening facing downwards and directly opposite the molding mandrel. The lower molding part... The unit includes a second lifting drive device, a second mold base, and a lower mold. The second lifting drive device is fixedly connected to the machine body. The second mold base is fixedly connected to the drive end of the second lifting drive device. The lower mold is fixedly connected to the second mold base. The lower mold is an arc-shaped structure with its opening facing upwards and directly opposite the molding mandrel. The upper mold and the lower mold are positioned opposite each other in the vertical direction. Under the drive of the first lifting drive device and the second lifting drive device, the upper mold and the lower mold can hug each other around the molding mandrel to form a circle. The two ends of the arc of the lower mold are configured to be of equal height to form a platform for placing flat materials.

[0006] Preferably, at least one upper guide rod is fixed at each of the left and right ends of the first mold base, and an upper guide seat corresponding to the number of upper guide rods is fixedly connected to the machine body. The upper guide rods and the upper guide seats are slidably connected in the vertical direction.

[0007] Preferably, the upper guide seat includes an upper guide hole that fits with the upper guide rod through the sleeve, a copper sliding sleeve is fixed in the upper guide hole, and a first oiling device for injecting oil into the upper guide hole is also provided on the machine body.

[0008] Preferably, at least one lower guide rod is fixed at each of the left and right ends of the second mold base, and a lower guide seat corresponding to the number of lower guide rods is fixedly connected to the machine body. The lower guide rods and the lower guide seats are slidably connected in the vertical direction.

[0009] Preferably, the lower guide seat includes a lower guide hole that mates with the lower guide rod through the sleeve, a copper sliding sleeve is fixed in the lower guide hole, and a second oiling device for injecting oil into the lower guide hole is also provided on the machine body.

[0010] Preferably, the device further includes a material ejection mechanism, which is located on the outer periphery of the molding mandrel and has a horizontal material ejection push stroke.

[0011] Preferably, the machine body includes a first mounting surface facing forward and a second mounting surface and a third mounting surface located on the left and right sides of the first mounting surface, respectively. The molding mandrel is fixedly mounted on the first mounting surface. The ejection mechanism includes a first ejection cylinder and a second ejection cylinder fixed on the second mounting surface and the third mounting surface, respectively. Both the first ejection cylinder and the second ejection cylinder have a forward pushing stroke.

[0012] Preferably, the lower end of the first mold base is provided with a "T"-shaped or dovetail-shaped first connecting groove, the first connecting groove extends in the horizontal direction, and the upper mold includes a first mounting protrusion that matches the shape of the first connecting groove, the first mounting protrusion being inserted into the first connecting groove in the horizontal direction.

[0013] Preferably, the upper end of the second mold base is provided with a "T"-shaped or dovetail-shaped second connecting groove, the second connecting groove extends in the horizontal direction, and the lower mold includes a second mounting protrusion that matches the shape of the second connecting groove, the second mounting protrusion being inserted into the second connecting groove in the horizontal direction.

[0014] The present invention has the following advantages: The present invention uses a segmented molding process to press out the lower half and upper half of the wheel hub into an arc structure, which can combine the rolling and pressing processes into one. Moreover, the equipment can also be used for the re-rounding process, which reduces the number of equipment required in the wheel hub pressing process and improves production efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the wheel hub rounding device in the embodiment;

[0016] Figure 2 This is a front view of the hub rounding device in the embodiment;

[0017] Figure 3 This is a schematic diagram of the planar steel plate placed on the lower mold in the embodiment;

[0018] Figure 4 This is a schematic diagram of the lower mold and the pressing mandrel pressing the flat steel plate in the embodiment. Detailed Implementation

[0019] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0020] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0021] See Figure 1-4 As shown in the preferred embodiment of this utility model, a wheel hub rounding device is provided, including a vertically arranged body 1. A molding mandrel 2 is fixedly mounted on the body 1. The molding mandrel 2 extends horizontally and protrudes from the body 1. An upper molding part and a lower molding part are respectively provided above and below the molding mandrel 2. The upper molding part includes a first lifting drive device 3, a first mold base 4, and an upper mold 5. The first lifting drive device 3 is fixedly connected to the body 1. The first mold base 4 is fixedly connected to the drive end of the first lifting drive device 3. The upper mold 5 is fixedly connected to the first mold base 4. In this embodiment, the first lifting drive device 3 is a hydraulic cylinder. In other embodiments, it can also be a pneumatic cylinder, a motor, etc. Figure 1 The upper mold 5 is not shown in the figure. The upper mold 5 is connected to the lower end of the first mold base 4. When the first lifting drive device 3 drives the first mold base 4 to lift, it also drives the upper mold 5 to lift away from or near the molding mandrel 2.

[0022] The lower molding section includes a second lifting drive device (not shown in the figure), a second mold base 6, and a lower mold 7. The second lifting drive device is similar to the first lifting drive device 3; in this embodiment, it is a hydraulic cylinder, but in other embodiments, it can be a pneumatic cylinder, a motor, etc. The second lifting drive device is fixedly connected to the machine body 1, the second mold base 6 is fixedly connected to the drive end of the second lifting drive device, and the lower mold 7 is fixedly connected to the second mold base 6. Figure 1 The lower mold 7 is not shown in the figure. The lower mold 7 is connected to the upper end of the second mold base 6. When the second lifting drive device drives the second mold base 6 to lift, it also drives the lower mold 7 to lift closer to or away from the molding mandrel 2.

[0023] In other words, the upper mold 5 and lower mold 7, located on the upper and lower sides of the molding mandrel 2, can be driven independently to move up and down. The upper mold 5 is an arc-shaped structure with its opening facing downwards and directly opposite the molding mandrel 2, and the lower mold 7 is an arc-shaped structure with its opening facing upwards and directly opposite the molding mandrel 2. The upper mold 5 and lower mold 7 are positioned opposite each other in the vertical direction. Driven by the first lifting drive device 3 and the second lifting drive device, the upper mold 5 and lower mold 7 can hug each other to form a circle around the molding mandrel 2. The two ends of the arc of the lower mold 7 are configured to be of equal height to form a platform for placing flat materials.

[0024] Figure 3 and Figure 4 The working process of the wheel hub rounding equipment is shown. First, the upper mold 5 and the lower mold 7 are opened, and the flat steel plate 100 is placed on the lower mold 7. Then, the lower mold 7 is driven to move upward, so that the flat steel plate 100 is molded into a "U" shape between the molding mandrel 2 and the lower mold 7. Then, the upper mold 5 is driven to move downward, so that the flat steel plate 100 is completely pressed into a circle between the upper mold 5, the lower mold 7, and the molding mandrel 2. In this way, the lower and upper arc structures of the wheel hub are molded in segments, which combines the rolling and pressing processes into one. Moreover, this equipment can also be used for the re-rounding process, reducing the number of equipment required in the wheel hub rounding manufacturing process and improving production efficiency. It should be noted that the upper mold 5 and the lower mold 7 are driven separately. If the flat steel plate 100 is not aligned when placed on the lower mold 7, for example, if the left side of the flat steel plate 100 extends longer than the right side of the lower mold 7, the left side of the flat steel plate 100 may touch the upper mold 5 during the molding process of the molding mandrel 2 and the lower mold 7. However, since the upper mold 5 can be driven independently, the molding operation can continue by simply controlling the upper mold 5 to rise. In other words, the positional accuracy requirement for the flat steel plate 100 placed on the lower mold 7 is not high.

[0025] Continue reading Figure 1 At least one upper guide rod 8 is fixed at each of the left and right ends of the first mold base 4. A corresponding number of upper guide seats 9 are fixedly connected to the machine body 1. The upper guide rods 8 and upper guide seats 9 are slidably connected in the vertical direction. The upper guide rods 8 and upper guide seats 9 improve the displacement accuracy of the first mold base 4. Similarly, at least one lower guide rod 10 is fixed at each of the left and right ends of the second mold base 6. A corresponding number of lower guide seats 11 are fixedly connected to the machine body 1. The lower guide rods 10 and lower guide seats 11 are slidably connected in the vertical direction.

[0026] To improve wear resistance and ensure good sliding between the upper guide rod 8 and the upper guide seat 9, the upper guide seat 9 includes an upper guide hole (not shown) that fits through the upper guide rod 8, a copper sliding sleeve 12 fixed in the upper guide hole, and a first oiling device (not shown) for injecting oil into the upper guide hole on the machine body 1. Similarly, the lower guide seat 11 includes a lower guide hole that fits through the lower guide rod 10, a copper sliding sleeve fixed in the lower guide hole, and a second oiling device for injecting oil into the lower guide hole on the machine body 1.

[0027] The machine body 1 includes a forward-facing first mounting surface 101 and second mounting surfaces 102 and third mounting surfaces 103 located on the left and right sides of the first mounting surface 101, respectively. A molding mandrel 2 is fixedly mounted on the first mounting surface 101. A first ejector cylinder 13 and a second ejector cylinder 14 are fixedly mounted on the second mounting surfaces 102 and 103, respectively. Both the first ejector cylinder 13 and the second ejector cylinder 14 have a forward pushing stroke. After the wheel hub is rounded, the first ejector cylinder 13 and the second ejector cylinder 14 push the wheel hub away from the molding mandrel 2, achieving rapid ejection. The first ejector cylinder 13 and the second ejector cylinder 14 can also be replaced by hydraulic cylinders, motors, or other pushing mechanisms located on the outer periphery of the molding mandrel 2.

[0028] like Figure 1 and Figure 3 The lower end of the first mold base 4 is provided with a "T"-shaped (or dovetail-shaped in other embodiments) first connecting groove 41, which extends horizontally. The upper mold 5 includes a first mounting protrusion 51 that matches the shape of the first connecting groove 41, and the first mounting protrusion 51 is inserted into the first connecting groove 41 horizontally. This connection structure can ensure the stability of the connection between the first mold base 4 and the upper mold 5, and also allows for quick disassembly and replacement of the upper mold 5. Similarly, the upper end of the second mold base 6 can be provided with a "T"-shaped or dovetail-shaped second connecting groove, which extends horizontally. The lower mold 7 includes a second mounting protrusion that matches the shape of the second connecting groove, and the second mounting protrusion is inserted into the second connecting groove horizontally.

[0029] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A wheel hub rounding device, characterized in that: The machine includes an upright body with a molding mandrel fixedly mounted on it. The molding mandrel extends horizontally and protrudes from the machine body. An upper molding section and a lower molding section are respectively located above and below the molding mandrel. The upper molding section includes a first lifting drive device, a first mold base, and an upper mold. The first lifting drive device is fixedly connected to the machine body, the first mold base is fixedly connected to the drive end of the first lifting drive device, and the upper mold is fixedly connected to the first mold base. The upper mold is an arc-shaped structure with its opening facing downwards and directly opposite the molding mandrel. The lower molding section includes a second lifting drive device, a second mold base, and a lower mold. The second lifting drive device is fixedly connected to the machine body, the second mold base is fixedly connected to the drive end of the second lifting drive device, and the lower mold is fixedly connected to the second mold base. The lower mold is an arc-shaped structure with its opening facing upwards and directly opposite the molding mandrel. The upper and lower molds are positioned opposite each other in the vertical direction. Driven by the first and second lifting drive devices, the upper and lower molds can hug each other around the molding mandrel to form a circle. The two ends of the arc of the lower mold are configured to be of equal height to form a platform for placing flat materials.

2. The wheel hub rounding device according to claim 1, characterized in that: At least one upper guide rod is fixed at each of the left and right ends of the first mold base, and upper guide seats corresponding to the number of upper guide rods are fixedly connected to the machine body. The upper guide rods and upper guide seats are slidably connected in the vertical direction.

3. The wheel hub rounding device according to claim 2, characterized in that: The upper guide seat includes an upper guide hole that mates with the upper guide rod through the sleeve, a copper sliding sleeve is fixed in the upper guide hole, and a first oiling device for injecting oil into the upper guide hole is also provided on the machine body.

4. The wheel hub rounding device according to claim 1, characterized in that: At least one lower guide rod is fixed at each of the left and right ends of the second mold base. A number of lower guide seats corresponding to the number of lower guide rods are fixedly connected to the machine body. The lower guide rods and the lower guide seats are slidably connected in the vertical direction.

5. The wheel hub rounding device according to claim 2, characterized in that: The lower guide seat includes a lower guide hole that mates with the lower guide rod through the sleeve, a copper sliding sleeve is fixed in the lower guide hole, and a second oiling device for injecting oil into the lower guide hole is also provided on the machine body.

6. The wheel hub rounding device according to claim 1, characterized in that: It also includes a material ejection mechanism, which is located on the outer periphery of the molding mandrel and has a horizontal material ejection push stroke.

7. The wheel hub rounding device according to claim 6, characterized in that: The machine body includes a first mounting surface facing forward and a second mounting surface and a third mounting surface located on the left and right sides of the first mounting surface, respectively. The molding mandrel is fixedly mounted on the first mounting surface. The ejection mechanism includes a first ejection cylinder and a second ejection cylinder fixed on the second mounting surface and the third mounting surface, respectively. Both the first ejection cylinder and the second ejection cylinder have a forward pushing stroke.

8. The wheel hub rounding device according to claim 1, characterized in that: The lower end of the first mold base is provided with a "T"-shaped or dovetail-shaped first connecting groove, which extends horizontally. The upper mold includes a first mounting protrusion that matches the shape of the first connecting groove, and the first mounting protrusion is inserted into the first connecting groove in the horizontal direction.

9. The wheel hub rounding device according to claim 1, characterized in that: The upper end of the second mold base is provided with a "T"-shaped or dovetail-shaped second connecting groove, which extends horizontally. The lower mold includes a second mounting protrusion that matches the shape of the second connecting groove, and the second mounting protrusion is inserted into the second connecting groove in the horizontal direction.

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