Hub mold with high precision

Abstract

The utility model provides a hub mould with high precision, which comprises a punching machine and a mould body detachably arranged on the punching machine, the mould body comprises a frame body and a central block arranged in the middle of the frame body, the central block is matched with the middle position of the mould body in size, and the central block is arranged in the frame body. An ejection part used for demolding is arranged at the bottom of the center block and comprises an ejection rod arranged at the bottom of the center block in a sliding mode, the end, away from the center block, of the ejection rod is fixedly connected with a connecting rod, and the end, away from the center block, of the connecting rod is fixedly connected with a limiting plate; the end, away from the ejector rod, of the limiting plate is rotationally connected with a screw. According to the high-precision wheel hub mold, through the arrangement of the ejection part, a wheel hub can be ejected out through the center block on the mold body after forming machining, and the problem that the machined wheel hub and the mold are clamped tightly and are not convenient to separate is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel hub moulds, in particular to a wheel hub mould with high precision. Background Art

[0002] Wheel hub molds are process equipment used to produce automobile wheels. The wheel hub is a key component that connects the tire and the wheel axle. It not only carries the weight of the vehicle, but also affects the performance, safety and appearance of the vehicle. Wheel hub molds are usually used in casting or molding processes to produce wheels with specific shapes, sizes and decorative effects.

[0003] Wheel hub molds are often divided into three types according to the manufacturing method of the wheel hub: casting molds, forging molds and forming molds. Among them, when manufacturing aluminum alloy wheels, forming molds are often used in conjunction with stamping machines to process semi-finished aluminum alloy workpieces. This processing method can often obtain higher-precision wheel hub frame components through one-time processing. When using forming molds for processing, the stamped wheel hub is often tightly clamped with the wheel hub mold, and the temperature of the wheel hub is high at this time, making it difficult to remove the processed workpiece.

[0004] In view of this, a wheel hub mold with high precision is proposed. Utility Model Content

[0005] The utility model aims to solve the problem that it is inconvenient to take the wheel hub out of the wheel hub mold after processing the wheel hub mold with high precision, and provides a wheel hub mold with high precision.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions: a high-precision wheel hub mold, comprising a punching machine and a mold body detachably mounted on the punching machine, the mold body comprising a frame and a center block arranged in the middle of the frame, the center block is adapted to the size of the middle position of the mold body, an ejection component for demolding is arranged at the bottom of the center block, the ejection component comprises an ejection rod slidably arranged at the bottom of the center block, an end of the ejection rod away from the center block is fixedly connected to a connecting rod, an end of the connecting rod away from the center block is fixedly connected to a limiting plate, an end of the limiting plate away from the ejection rod is rotatably connected to a screw, and the screw is used to drive the center block to move upward when moving upward to complete the demolding operation.

[0007] Furthermore, the punching machine includes a base and a pressing part arranged above the base, a punching head is arranged at the bottom of the pressing part, a punching seat for cooperating with the punching head to complete the punching is arranged on the base, a punching groove for installing the mold body is opened on the punching seat, and a mounting seat for installing the ejection component is arranged on the base.

[0008] Furthermore, a limiting rod is fixedly connected to the mounting seat, a top of the limiting rod is fixedly connected to a bottom of the mold body, and the limiting rod passes through a limiting plate.

[0009] Furthermore, a first gear is threadedly connected to the screw rod, a rotating drum is fixedly connected to the bottom of the first gear, and the bottom of the rotating drum is rotatably connected to the mounting seat.

[0010] Furthermore, the first gear is meshed with a second gear, and the mounting seat is fixedly connected with a motor for driving the second gear to rotate.

[0011] Furthermore, an ejector head is fixedly connected to one end of the ejector rod close to the central block, and a slide groove having a size matching that of the ejector head is provided at the bottom of the central block.

[0012] Furthermore, a spring is fixedly connected to the bottom of the mounting seat, one end of the spring is fixedly connected to the mounting seat, and the other end of the spring is fixedly connected to the top of the connecting rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The high-precision wheel hub mold provided by the utility model can eject the wheel hub through the center block on the mold body after the molding process through the setting of the ejection component, thereby solving the problem that the processed wheel hub and the mold are clamped and difficult to separate;

[0015] 2. The high-precision wheel hub mold provided by the utility model is provided with a spring between the center block and the connecting rod, so that the ejection component has a pre-ejection elastic stroke when it is ejected after processing is completed, thereby preventing the rigid ejection from changing the shape of the aluminum alloy wheel hub or causing damage to the surface of the aluminum alloy wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 This is a structural schematic diagram of a mold body of an embodiment of the utility model being placed in a punching machine.

[0018] Figure 2 This is a positional relationship diagram of a mold body and an ejection component according to an embodiment of the present utility model.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the ejection component according to one embodiment of the utility model.

[0020] Figure 4This is a state diagram of the ejection component of one embodiment of the utility model when ejecting the center block.

[0021] Figure 5 It is an exploded schematic diagram of an ejection component according to an embodiment of the utility model.

[0022] Figure 6 It is a cross-sectional schematic diagram of an ejection component according to an embodiment of the utility model.

[0023] In the figure:

[0024] 1. punching machine, 11. base, 12. pressing part, 13. punching head, 14. punching seat, 15. punching groove, 16. mounting seat;

[0025] 2. mold body, 21. frame, 22. center block;

[0026] 3. Ejector component, 31. Connecting rod, 32. Ejector rod, 321. Ejector head, 33. Slide groove, 34. Spring, 35. Limit plate, 351. Limit rod, 36. Screw, 37. First gear, 38. Rotating drum, 39. Second gear, 391. Motor. DETAILED DESCRIPTION

[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-6 .

[0029] The high-precision wheel hub mold of the utility model comprises a punching machine 1 and a mold body 2 detachably mounted on the punching machine 1, the mold body 2 comprises a frame 21 and a center block 22 arranged in the middle of the frame 21, the center block 22 is adapted to the size of the middle position of the mold body 2, an ejection component 3 for demoulding is arranged at the bottom of the center block 22, the ejection component 3 comprises an ejection rod 32 slidably arranged at the bottom of the center block 22, an end of the ejection rod 32 away from the center block 22 is fixedly connected to a connecting rod 31, an end of the connecting rod 31 away from the center block 22 is fixedly connected to a limiting plate 35, an end of the limiting plate 35 away from the ejection rod 32 is rotatably connected to a screw 36, and the screw 36 is used to drive the center block 22 to move upward when moving upward to complete the demoulding operation.

[0030] Among them, it should be noted that the center block 22 is a part of the mold body 2, and the shape of the top of the center block 22 is the shape of the mold of the wheel hub to be stamped. When stamping, the center block 22 is supported by the frame 21 and will not be affected. In addition, the punching machine 1 includes a base 11 and a pressing part 12 arranged above the base 11, a punching head 13 is arranged at the bottom of the pressing part 12, and a punching seat 14 for cooperating with the punching head 13 to complete the stamping is arranged on the base 11, and a punching groove 15 for installing the mold body 2 is opened on the punching seat 14, and a mounting seat 16 for installing the ejection component 3 is arranged on the base 11.

[0031] In addition, a limiting rod 351 is fixedly connected to the mounting seat 16, the top of the limiting rod 351 is fixedly connected to the bottom of the mold body 2, and the limiting rod 351 is arranged through the limiting plate 35. The limiting rod 351 is used to cooperate with the screw rod 36 to limit the movement of the center block 22, ensuring that the center block 22 moves linearly when ejected, to prevent damage to the surface of the workpiece.

[0032] Specifically, a first gear 37 is threadedly connected to the screw rod 36, a rotating drum 38 is fixedly connected to the bottom of the first gear 37, the rotating bottom is rotatably connected to the mounting base 16, a second gear 39 is meshingly linked to the first gear 37, and a motor 391 for driving the second gear 39 to rotate is fixedly connected to the mounting base 16.

[0033] It should be noted that, since the first gear 37 is rotatably mounted on the mounting base 16 through the rotating drum 38, and because the first gear 37 and the screw rod 36 are threadedly connected, in addition, the screw rod 36 and the center block 22 are rotatably connected, when the first gear 37 rotates, it will drive the screw rod 36 and the center block 22 to move along the axial direction of the screw rod 36, thereby realizing the ejection of the screw rod 36.

[0034] like Figure 6 As shown, the end of the ejector rod 32 close to the center block 22 is fixedly connected with an ejector head 321, and the bottom of the center block 22 is provided with a slide groove 33 whose size matches the ejector head 321. In addition, a spring 34 is fixedly connected to the bottom of the mounting seat 16, one end of the spring 34 is fixedly connected to the mounting seat 16, and the other end of the spring 34 is fixedly connected to the top of the connecting rod 31. When the screw rod 36 drives the ejector rod 32 and the ejector head 321 to move, the ejector head 321 is first pushed to the top of the slide groove 33, and then the spring 34 is squeezed to perform pre-pushing. During the pre-pushing, the center block 22 is prevented from being in rigid contact with the wheel hub and causing damage to the wheel hub.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A wheel hub mold with high precision, comprising a punching machine (1) and a mold body (2) detachably mounted on the punching machine (1), characterized in that: The mold body (2) comprises a frame (21) and a center block (22) arranged in the middle of the frame (21); the center block (22) is adapted to the size of the middle position of the mold body (2); an ejection component (3) for demoulding is arranged at the bottom of the center block (22); the ejection component (3) comprises an ejection rod (32) slidably arranged at the bottom of the center block (22); an end of the ejection rod (32) away from the center block (22) is fixedly connected to a connecting rod (31); an end of the connecting rod (31) away from the center block (22) is fixedly connected to a limiting plate (35); an end of the limiting plate (35) away from the ejection rod (32) is rotatably connected to a screw rod (36); the screw rod (36) is used to drive the center block (22) to move upward when moving upward to complete the demoulding operation.

2. The high-precision wheel hub mold according to claim 1, characterized in that: The punching machine (1) comprises a base (11) and a pressing portion (12) arranged above the base (11); a punching head (13) is arranged at the bottom of the pressing portion (12); a punching seat (14) is arranged on the base (11) for cooperating with the punching head (13) to complete punching; a punching groove (15) is provided on the punching seat (14) for mounting the mold body (2); and a mounting seat (16) is arranged on the base (11) for mounting an ejection component (3).

3. The high-precision wheel hub mold according to claim 2, characterized in that: A limiting rod (351) is fixedly connected to the mounting seat (16), the top of the limiting rod (351) is fixedly connected to the bottom of the mold body (2), and the limiting rod (351) is arranged to penetrate the limiting plate (35).

4. The high-precision wheel hub mold according to claim 3, characterized in that: A first gear (37) is threadedly connected to the screw rod (36), a rotating drum (38) is fixedly connected to the bottom of the first gear (37), and the bottom of the rotating drum (38) is rotatably connected to the mounting seat (16).

5. The high-precision wheel hub mold according to claim 4, characterized in that: The first gear (37) is meshedly linked with a second gear (39), and the mounting seat (16) is fixedly connected with a motor (391) for driving the second gear (39) to rotate.

6. The high-precision wheel hub mold according to claim 5, characterized in that: An ejection head (321) is fixedly connected to one end of the ejection rod (32) close to the central block (22), and a slide groove (33) having a size matching that of the ejection head (321) is provided at the bottom of the central block (22).

7. The high-precision wheel hub mold according to claim 6, characterized in that: A spring (34) is fixedly connected to the bottom of the mounting seat (16), one end of the spring (34) is fixedly connected to the mounting seat (16), and the other end of the spring (34) is fixedly connected to the top of the connecting rod (31).

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