Low-pressure die for automobile hub

Abstract

The utility model provides a low-pressure die for an automobile hub, and relates to the technical field of automobile hub production. A positioning assembly; the positioning assembly comprises a first mounting frame fixedly connected to the positioning column, and a motor is mounted in the first mounting frame. A polishing assembly; the polishing assembly comprises a second mounting frame fixedly connected to the positioning column, supporting rings are rotationally connected to the two ends of the second mounting frame, a polishing frame is fixedly connected to the outer sides of the supporting rings, an upper connecting ring is fixedly connected to the top end of the polishing frame, and a lower connecting ring is fixedly connected to the bottom end of the polishing frame. By means of the design, the positions of the positioning block and the grinding frame can be directly adjusted, so that the grinding block can adapt to hub bodies of different sizes, hubs of different diameters can be automatically positioned, positioning is conducted, frequent manual adjustment and debugging are effectively avoided, the working efficiency is improved, and personal errors are reduced.

Description

Technical Field

[0001] This utility model relates to the field of automobile wheel hub manufacturing technology, and in particular to low-pressure molds for automobile wheel hubs. Background Technology

[0002] Low-pressure molds for automotive wheel hubs employ a low-pressure casting process, injecting molten metal into the mold cavity under precisely controlled low pressure to form a high-quality wheel hub blank. These molds are typically made of high-strength, heat-resistant materials to withstand the high temperatures and pressures of the casting process.

[0003] A search of Chinese patent publication number CN222404749U reveals a mold for automobile wheel hub production, comprising a main component; the main component includes a base, on the top of which a fixing frame is fixedly connected, and the top of the base has multiple dust inlet holes; a motor is fixedly connected to the top of the fixing frame, and its output end is inserted into the fixing frame.

[0004] After the low-pressure casting is completed, the operator turns on the electric push rods on both sides to make the grinding block fit tightly with the wheel hub material to be processed. Then, the operator drives the grinding block to grind the surface of the wheel hub material through the drive mechanism, thus solving the problem that wheel hubs need to be transferred for grinding after production, which consumes a lot of time.

[0005] However, in actual use, because the square shape of the grinding block does not match the concave surface of the wheel hub, the grinding block either needs to be replaced frequently or the grinding angle needs to be adjusted manually. This requires the staff to frequently adjust the device, thus increasing working hours and labor.

[0006] Therefore, this utility model provides a low-pressure mold for automobile wheel hubs. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a low-pressure mold for automobile wheel hubs.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a low-pressure mold for automobile wheel hubs, comprising;

[0009] Positioning post and wheel hub body;

[0010] A positioning component; the positioning component includes a mounting bracket fixedly connected to a positioning column, and a motor is installed inside the mounting bracket.

[0011] A grinding assembly; the grinding assembly includes a second mounting bracket fixedly connected to a positioning column, with support rings rotatably connected to both ends of the second mounting bracket, a grinding frame fixedly connected to the outer side of the support rings, an upper connecting ring fixedly connected to the top of the grinding frame, and a lower connecting ring fixedly connected to the bottom of the grinding frame.

[0012] Adjustment assembly; the adjustment assembly includes adjustment rods slidably connected to both ends of the grinding frame, springs are provided at both ends of the grinding frame, connecting rods are fixedly connected to the adjacent ends of the two adjustment rods, and grinding blocks are fixedly connected to both ends of the distant ends of the two adjustment rods.

[0013] In a preferred embodiment, a plurality of expansion plates are fixedly connected to the outer side of the drive end of the mounting bracket one, an extension frame is slidably connected inside the expansion plate, and a positioning block is fixedly connected to the end of the extension frame away from the expansion plate.

[0014] In a preferred embodiment, the end of the positioning block furthest from the extension frame is in contact with the interior of the wheel hub body.

[0015] In a preferred embodiment, one end of the spring is fixedly connected to the inside of the grinding frame, and the other end of the spring is fixedly connected to the connecting rod.

[0016] In a preferred embodiment, the inner sides of the grinding frame and the grinding blocks at both ends are in contact with the outer side of the wheel hub body.

[0017] In one preferred embodiment, one end of the upper connecting ring and the lower connecting ring is fixedly connected to a connecting strap, and one end of the other upper connecting ring and the lower connecting ring is provided with a locking groove.

[0018] In a preferred embodiment, the outer side of the connecting strip engages with the engaging groove.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0020] This invention features a motor that amplifies its driving force through an external expansion plate and extends to a mounting bracket, causing the positioning block to slide. This allows the positioning block to be precisely adjusted to contact the inside of the wheel hub, ensuring accurate wheel hub positioning. Simultaneously, the grinding assembly is fixed to the positioning column via a mounting bracket and connected to the grinding frame via a support ring. A connecting belt ensures the synchronous movement of the grinding frame. The upper and lower connecting rings compress the springs, pushing the grinding blocks at both ends to move and fit against the surface of the wheel hub. This design allows direct adjustment of the positions of the positioning block and the grinding frame, enabling the grinding block to adapt to wheel hubs of different sizes and automatically positioning wheel hubs of different diameters. This effectively avoids frequent manual adjustments and adjustments, improving work efficiency and reducing human error. Attached Figure Description

[0021] Figure 1 A perspective view of the low-pressure mold for automobile wheel hubs provided by this utility model;

[0022] Figure 2 A schematic diagram of the connecting belt structure of the low-pressure mold for automobile wheel hubs provided by this utility model;

[0023] Figure 3 A schematic diagram of the positioning component structure of the low-pressure mold for automobile wheel hubs provided by this utility model;

[0024] Figure 4 A schematic diagram of the grinding assembly structure of the low-pressure mold for automobile wheel hubs provided by this utility model;

[0025] Figure 5 A schematic diagram of the adjustment component structure of the low-pressure mold for automobile wheel hubs provided by this utility model.

[0026] Legend:

[0027] 1. Positioning post;

[0028] 2. Positioning component; 21. Mounting bracket one; 22. Motor; 23. Outer expansion plate; 24. Extension bracket; 25. Positioning block;

[0029] 3. Grinding assembly; 31. Mounting bracket two; 32. Support ring; 33. Grinding bracket; 34. Upper connecting ring; 35. Lower connecting ring; 36. Connecting belt; 37. Engaging groove;

[0030] 4. Adjustment assembly; 41. Adjustment rod; 42. Spring; 43. Connecting rod; 44. Grinding blocks at both ends;

[0031] 5. Wheel hub body. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figure 1 - Figure 3 As shown, this embodiment provides a technical solution: a low-pressure mold for automobile wheel hubs, comprising;

[0034] Positioning post 1 and wheel hub body 5;

[0035] Positioning component 2; Positioning component 2 includes a mounting bracket 21 fixedly connected to the positioning post 1. A motor 22 is installed inside the mounting bracket 21. Multiple expansion plates 23 are fixedly connected to the outer side of the drive end of the mounting bracket 21. An extension frame 24 is slidably connected inside the expansion plate 23. A positioning block 25 is fixedly connected to the end of the extension frame 24 away from the expansion plate 23. The end of the positioning block 25 away from the extension frame 24 contacts the inside of the wheel hub body 5.

[0036] The positioning pin 1 provides initial positioning for the wheel hub body 5. Through its cooperation with the wheel hub body 5, the positioning pin 1 ensures the accurate position of the wheel hub in the mold, thereby guaranteeing the precision of subsequent processing or manufacturing. The wheel hub body 5 is the object being processed or manufactured. The mounting bracket 21 fixes and supports the motor 22. With the support of the mounting bracket 21, the motor 22 can be stably installed in the mold, ensuring reliable connection between its drive end and the wheel hub body 5. The motor 22 provides driving force to drive the wheel hub body 5 to rotate or adjust. Driven by the motor 22, the wheel hub body 5 can move in a predetermined manner. The movement enables precise positioning and processing. The function of the expansion plate 23 is to expand the driving range of the motor 22 and provide a track for the installation and sliding of the extension frame 24. Through the expansion design of the expansion plate 23, the coverage of the positioning component 2 can be increased, so that it can adapt to different sizes of wheel hub bodies 5. The function of the extension frame 24 is to extend the positioning block 25 into the interior of the wheel hub body 5 to achieve more precise positioning. Through the sliding of the extension frame 24, the positioning block 25 can be adjusted according to the size of the wheel hub body 5, thereby ensuring the accuracy of positioning. The function of the positioning block 25 is to achieve precise positioning of the wheel hub by contacting the wheel hub body 5.

[0037] like Figure 1 - Figure 4As shown, the grinding assembly 3 includes a mounting bracket 31 fixedly connected to the positioning post 1. Both ends of the mounting bracket 31 are rotatably connected to support rings 32. A grinding frame 33 is fixedly connected to the outside of the support rings 32. An upper connecting ring 34 is fixedly connected to the top of the grinding frame 33, and a lower connecting ring 35 is fixedly connected to the bottom of the grinding frame 33. A connecting strip 36 is fixedly connected to one end of one of the upper connecting rings 34 and the lower connecting ring 35. A locking groove 37 is opened at one end of the other upper connecting ring 34 and the lower connecting ring 35. The outside of the connecting strip 36 engages with the locking groove 37.

[0038] The function of mounting bracket 31 is to fix the entire grinding assembly 3 to the positioning post 1, providing a stable mounting base for the grinding assembly 3. The function of support ring 32 is to support and guide the movement of grinding frame 33. Through the rotational connection of support ring 32, grinding frame 33 can rotate flexibly within a certain range, thereby adapting to grinding needs at different angles and positions. Grinding frame 33 is the component that directly contacts the surface of the wheel hub and grinds the surface of the wheel hub. The function of upper connecting ring 34 is to connect grinding frame 33 to connecting belt 36 or engaging groove 37. Through the connection of upper connecting ring 34, grinding frame 33 and connecting belt can be connected. The linkage between the connecting belt 36 or the locking groove 37 ensures the overall coordinated movement of the grinding assembly 3. The function of the lower connecting ring 35 is to cooperate with the upper connecting ring 34 to connect the grinding frame 33 with the connecting belt 36 or the locking groove 37. The function of the connecting belt 36 is to connect the two grinding frames 33 together, ensuring the synchronicity of the two grinding frames 33 during the movement, thereby improving the uniformity and efficiency of grinding. The locking groove 37 is a structure that cooperates with the connecting belt 36. Its main function is to fix the connecting belt 36 between the upper connecting ring 34 and the lower connecting ring 35, so as to achieve a firm connection between the grinding frame 33 and the connecting belt 36.

[0039] like Figure 1 and Figure 5 As shown, the adjustment component 4 includes adjustment rods 41 slidably connected to both ends of the grinding frame 33. Springs 42 are provided at both ends of the interior of the grinding frame 33. Connecting rods 43 are fixedly connected to the near ends of the two adjustment rods 41, and grinding blocks 44 are fixedly connected to both ends of the two adjustment rods 41. One end of the spring 42 is fixedly connected to the interior of the grinding frame 33, and the other end of the spring 42 is fixedly connected to the connecting rod 43. The inner sides of the grinding frame 33 and the grinding blocks 44 are in contact with the outer side of the wheel hub body 5.

[0040] The function of the adjusting rod 41 is to adjust the distance between the two grinding blocks 44 by sliding, thereby adapting to different sizes of wheel hub bodies 5. The function of the spring 42 is to provide elasticity, keeping the adjusting rod 41 and the connecting rod 43 in the appropriate position. Through the elasticity of the spring 42, the adjusting rod 41 can be kept stable during sliding and can automatically reset when needed, thus effectively coping with wheel hub bodies 5 of different sizes and shapes. The function of the connecting rod 43 is to adjust the two adjusting rods 41, thereby ensuring that the distance between the two grinding blocks 44 is adjusted evenly. The grinding blocks 44 at both ends directly contact the outer side of the wheel hub body 5 for grinding. The design of the grinding blocks 44 at both ends is usually optimized according to the shape of the wheel hub and the grinding requirements to ensure the uniformity and quality of grinding.

[0041] like Figure 1 - Figure 5 As shown:

[0042] In use: First, start the motor 22. The driving force of the motor 22 is amplified through the outer expansion plate 23. The outer expansion plate 23 provides mounting and sliding rails, driving the extension frame 24 to slide, thereby adjusting the position of the positioning block 25 so that it contacts the inside of the wheel hub body 5, achieving more precise positioning. At this time, the extension frame 24 adjusts the position of the positioning block 25 according to the size of the wheel hub body 5 to ensure the precise positioning of the wheel hub. Then, the grinding assembly 3 is fixed to the positioning post 1 by the mounting bracket 2 31. The rotational connection of the support ring 32 allows the grinding frame 33 to rotate flexibly to adapt to wheel hub bodies 5 of different sizes. Furthermore, the upper connecting ring 34 and the lower connecting ring 35 are connected by the rotation of the support ring 32 and the connecting belt 36. The grinding frames 33 are connected together to ensure their synchronous movement. The engaging groove 37 engages with the connecting belt 36, and the connection between the connecting belt 36 and the engaging groove 37 allows for the adaptation of wheel hub bodies 5 of different sizes. Next, by pushing the upper connecting ring 34 and the lower connecting ring 35, the spring 42 is compressed, and then the grinding blocks 44 at both ends move until they are in contact with the surface of the wheel hub body 5. After releasing the upper connecting ring 34 and the lower connecting ring 35, the grinding blocks 44 at both ends are pressed against the wheel hub body 5 by the pressure of the spring 42. At this time, driven by the motor 22, the positioning block 25 transmits power to the wheel hub body 5, thereby driving the wheel hub body 5 to rotate in the grinding frame 33, thus realizing the grinding of the wheel hub body 5.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A low-pressure mold for automobile wheel hubs, characterized in that, include; Positioning post (1) and wheel hub body (5); Positioning component (2); The positioning component (2) includes a mounting bracket (21) fixedly connected to the positioning column (1), and a motor (22) is installed inside the mounting bracket (21); Grinding assembly (3); The grinding assembly (3) includes a mounting bracket two (31) fixedly connected to the positioning column (1), both ends of the mounting bracket two (31) are rotatably connected to a support ring (32), a grinding frame (33) is fixedly connected to the outside of the support ring (32), an upper connecting ring (34) is fixedly connected to the top of the grinding frame (33), and a lower connecting ring (35) is fixedly connected to the bottom of the grinding frame (33); Adjustment component (4); The adjustment component (4) includes adjustment rods (41) slidably connected to both ends of the grinding frame (33), and springs (42) are provided at both ends of the grinding frame (33). Connecting rods (43) are fixedly connected to the near ends of the two adjustment rods (41), and grinding blocks (44) are fixedly connected to the far ends of the two adjustment rods (41).

2. The low-pressure mold for automobile wheel hubs according to claim 1, characterized in that: Multiple expansion plates (23) are fixedly connected to the outer side of the drive end of the mounting bracket (21). An extension frame (24) is slidably connected inside the expansion plate (23). A positioning block (25) is fixedly connected to one end of the extension frame (24) away from the expansion plate (23).

3. The low-pressure mold for automobile wheel hubs according to claim 2, characterized in that: The end of the positioning block (25) away from the extension frame (24) is in contact with the interior of the hub body (5).

4. The low-pressure mold for automobile wheel hubs according to claim 1, characterized in that: One end of the spring (42) is fixedly connected to the inside of the grinding frame (33), and the other end of the spring (42) is fixedly connected to the connecting rod (43).

5. The low-pressure mold for automobile wheel hubs according to claim 1, characterized in that: The inner sides of the grinding frame (33) and the grinding blocks (44) at both ends are in contact with the outer side of the wheel hub body (5).

6. The low-pressure mold for automobile wheel hubs according to claim 1, characterized in that: One of the upper connecting rings (34) and the lower connecting ring (35) is fixedly connected to one end of a connecting band (36), and the other upper connecting ring (34) and the lower connecting ring (35) are provided with a locking groove (37).

7. The low-pressure mold for automobile wheel hubs according to claim 6, characterized in that: The outer side of the connecting strip (36) engages with the engaging groove (37).

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