Production die for hub spinning part

Abstract

The utility model provides a hub spinning part production die, which relates to the technical field of hub spinning, and comprises a fixed frame, a bidirectional threaded rod is rotatably connected between the inner surface walls of the fixed frame, first connecting blocks are symmetrically arranged on the outer surface of the bidirectional threaded rod, and the first connecting blocks are rotatably connected with the bidirectional threaded rod in a threaded manner. According to the utility model, the plurality of clamping assemblies are pulled and matched for use, so that when the plurality of T-shaped blocks are pulled, the plurality of limiting rods slide out of the lower dies, two lower dies can be conveniently taken out, and when a replaced lower die is placed on the two movable seats, under the elastic reset action of the plurality of springs, the lower dies can be conveniently taken out. According to the technical scheme, the limiting rods are driven to be inserted into the fixing holes in the two sides of the two lower dies in a sliding mode, the rapid fixing effect is achieved, and the problem that in the background technology, when die blanks of different sizes and specifications are cast, the two lower dies can only be replaced by disassembling a large number of bolts, and hub dies of different specifications are troublesome to replace is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hub spinning, in particular to a production mold for hub spinning parts. Background Art

[0002] At present, the main processing technology of hubs is sawing → heating → forging → spinning → heat treatment. Spinning is an essential process in hub manufacturing. The spinning process is carried out at a specific temperature and pressure. Through the high-speed rotation and extrusion of the spinning wheel, the structure of the rim part of the hub is continuously extended during rotation, gradually stretching and thinning the rim. At this time, the metal molecules inside the rim are arranged more closely and the metal strength is higher, thereby improving the strength of the hub.

[0003] In the prior art, when producing hub spinning parts, it is necessary to use a mold to cast a hub mold blank, and then put the hub mold blank on the machine for spinning and forming. However, for the lower mold used to cast the spinning part mold blank, in order to facilitate demolding, it is usually a split structure, fixed to two mutually movable bases with a large number of bolts, and driven by an external driving mechanism to drive the two lower molds to move towards each other for mold closing and move in the opposite direction for mold opening. When casting mold blanks of different sizes and specifications, a large number of bolts need to be disassembled to replace the two lower molds, resulting in trouble when replacing hub molds of different specifications. Therefore, a new production mold for hub spinning parts needs to be proposed. Summary of the Utility Model

[0004] The utility model mainly provides a production mold for hub spinning parts that can conveniently and quickly replace the lower molds of hubs of different specifications and improve the disassembly and assembly efficiency.

[0005] To achieve the above object, the utility model adopts the following technical scheme: A production mold for hub spinning parts, including a fixed frame, a bidirectional threaded rod is rotatably connected between the inner surfaces of the fixed frame, first connection blocks are symmetrically arranged on the outer surface of the bidirectional threaded rod, the first connection blocks are in threaded rotational connection with the bidirectional threaded rod, moving seats are fixedly connected to the tops of the two first connection blocks, and lower molds are arranged inside the two moving seats; a clamping assembly, the clamping assembly is provided in multiple groups, and the multiple groups of clamping assemblies are respectively arranged on the outer surfaces of both sides of the two moving seats. The clamping assembly includes a T-shaped block, limiting rods are symmetrically and fixedly connected to the outer surface of the T-shaped block, a connecting rod is fixedly connected to a position on the outer surface of the T-shaped block far away from the two limiting rods, a spring is sleeved on the outer surface of the connecting rod, and a circular block is fixedly connected to the end face of the connecting rod.

[0006] Preferably, the spring is located inside the moving seat, and the outer surface of the circular block is slidably connected to the inner surface of the moving seat, which is convenient for pushing the circular block under the resilience of the spring, so that it drives the connecting rod to move and contract into the moving seat.

[0007] Preferably, the outer surface of the connecting rod slidably penetrates through the outer surface of the moving seat, and the length of the connecting rod is greater than that of the limiting rod, which facilitates driving the two limiting rods to slide out of the two fixing holes when the connecting rod slides out of the moving seat by half of its distance, releasing the limit on the lower mold and facilitating disassembly and replacement.

[0008] Preferably, the outer surfaces of the two limiting rods both slidably penetrate through the outer surface of the moving seat and extend inwardly, and fixing holes are symmetrically formed on the outer surfaces of both sides of the lower mold respectively, which facilitates the two limiting rods to slide through the outer surface of the moving seat under the action of the springs and slide into the two fixing holes corresponding to their positions.

[0009] Preferably, the two limiting rods are respectively located inside the two fixing holes, and the inner surface of the fixing hole is slidably connected to the outer surface of the limiting rod, which facilitates the two limiting rods to slide and insert into the two fixing holes, playing a role of fixing and limiting.

[0010] Preferably, the bottom of the moving seat is symmetrically and fixedly connected with second connecting blocks, and the inner surface of the fixed frame is symmetrically and fixedly connected with sliding rods, and the outer surface of the sliding rod is slidably connected to the inner surface of the second connecting block, which facilitates the moving seat to be limited and slide along the outer surfaces of the two sliding rods during movement.

[0011] Preferably, one end face of the bidirectional threaded rod is fixedly connected with a fixed block, and a fixed rod is fixedly connected to the front surface of the fixed block, which facilitates driving the bidirectional threaded rod to rotate by holding the protruding fixed rod and making a circular motion.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0013] 1. In the present utility model, through the combined use of pulling multiple clamping components, when the multiple T-shaped blocks are pulled, the multiple limiting rods slide out of the lower mold, facilitating the removal of the two lower molds. When replacing the lower molds and placing the replacement lower molds on the two moving seats, under the elastic reset action of the multiple springs, the multiple limiting rods are driven to slide and insert into the fixing holes on both sides of the two lower molds respectively, playing a role of quick fixation, solving the problem in the background art that when casting mold blanks of different sizes and specifications, a large number of bolts need to be disassembled to replace the two lower molds, resulting in trouble in replacing hub molds of different specifications.

[0014] 2. In the present utility model, by slightly contracting the C-ring of the lower mold, it is ensured that there is enough amount during the pre-turning of the cast spinning part mold blank, meeting the physical property requirements of the wheel rim, increasing the later extrusion effect of the hub, and making the hub have higher strength after later forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1The present utility model provides a perspective view of a production mold for a hub spinning part;

[0016] Figure 2 The present utility model provides a bottom view of a production mold for a hub spinning part;

[0017] Figure 3 The present utility model provides a partial structural sectional view of a production mold for a hub spinning part;

[0018] Figure 4 The present utility model provides a schematic structural view of a clamping assembly of a production mold for a hub spinning part;

[0019] Figure 5 The present utility model provides a schematic structural view of a lower mold of a production mold for a hub spinning part.

[0020] Legend: 1, fixed frame; 2, sliding rod; 3, bidirectional threaded rod; 4, fixed block; 5, moving seat; 6, first connecting block; 7, second connecting block; 8, clamping assembly; 801, T-shaped block; 802, limiting rod; 803, connecting rod; 804, spring; 805, circular block; 9, lower mold; 10, fixing hole; 11, fixing rod. Detailed implementation manners

[0021] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the following further describes the present utility model with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the limitations of the specific embodiments disclosed in the following specification.

[0023] Please refer to Figures 1-5, the present utility model provides a technical solution: a production mold for a hub spinning part, including a fixed frame 1, a bidirectional threaded rod 3 is rotatably connected between the inner surfaces of the fixed frame 1, and first connection blocks 6 are symmetrically arranged on the outer surface of the bidirectional threaded rod 3. The first connection blocks 6 are in threaded rotation connection with the bidirectional threaded rod 3. The tops of the two first connection blocks 6 are fixedly connected with moving seats 5, and lower molds 9 are arranged inside the two moving seats 5; clamping assemblies 8, the clamping assemblies 8 are provided in multiple groups, and the multiple groups of clamping assemblies 8 are respectively arranged on the outer surfaces of the two sides of the two moving seats 5. The clamping assembly 8 includes a T-shaped block 801, limiting rods 802 are symmetrically and fixedly connected to the outer surface of the T-shaped block 801, a connecting rod 803 is fixedly connected to the outer surface of the T-shaped block 801 at a position far from the two limiting rods 802, a spring 804 is sleeved on the outer surface of the connecting rod 803, and a circular block 805 is fixedly connected to the end surface of the connecting rod 803.

[0024] As Figures 3-4 shown, the spring 804 is located inside the moving seat 5, and the outer surface of the circular block 805 is in sliding connection with the inner surface of the moving seat 5, which is convenient for the spring 804 to push the circular block 805 under its resilience force, so that the circular block 805 drives the connecting rod 803 to move and contract into the moving seat 5.

[0025] As Figure 4 shown, the outer surface of the connecting rod 803 slidably penetrates through the outer surface of the moving seat 5, and the length of the connecting rod 803 is greater than the length of the limiting rod 802, which is convenient for driving the two limiting rods 802 to slide out of the two fixing holes 10 when the connecting rod 803 slides out of the moving seat 5 by half of its distance, so as to release the limit on the lower mold 9 and facilitate disassembly and replacement.

[0026] As Figures 3-5 shown, the outer surfaces of the two limiting rods 802 both slidably penetrate through the outer surface of the moving seat 5 and extend inward, and fixing holes 10 are respectively symmetrically formed on the outer surfaces of the two sides of the lower mold 9, which is convenient for the two limiting rods 802 to slide through the outer surface of the moving seat 5 and slide into the two corresponding fixing holes 10 under the action of the spring 804.

[0027] As Figures 4-5 shown, the two limiting rods 802 are respectively located inside the two fixing holes 10, and the inner surface of the fixing hole 10 is in sliding connection with the outer surface of the limiting rod 802, which is convenient for the two limiting rods 802 to slide and insert into the two fixing holes 10, playing a role of fixing and limiting.

[0028] As Figures 1-2 shown, second connection blocks 7 are symmetrically and fixedly connected to the bottom of the moving seat 5, and sliding rods 2 are symmetrically and fixedly connected to the inner surface of the fixed frame 1. The outer surface of the sliding rod 2 is in sliding connection with the inner surface of the second connection block 7, which is convenient for the moving seat 5 to be limited and slide along the outer surfaces of the two sliding rods 2 when the moving seat 5 moves.

[0029] As Figures 1-2 shown, one end face of the bidirectional threaded rod 3 is fixedly connected with a fixed block 4, and the front surface of the fixed block 4 is fixedly connected with a fixed rod 11, which is convenient for making a circular motion after holding the protruding fixed rod 11, so that the fixed block 4 drives the bidirectional threaded rod 3 to rotate.

[0030] Usage method and working principle of this device: During the production of the hub spinning part, hold the fixed rod 11 and make a circular motion to drive the fixed block 4 to rotate clockwise. When the bidirectional threaded rod 3 rotates synchronously in the fixed frame 1, under the action of the bidirectional threaded rod 3, the two first connecting blocks 6 cause the two moving seats 5 to slide downward along the surfaces of the two sliding rods 2 respectively through a plurality of second connecting blocks 7, so that the two lower molds 9 are closed. After the two lower molds 9 are closed, the inner C-rings of the two lower molds 9 contract inward, so that the formed die blank is modified by the spinning pre-turning process, and the wall thickness of the C-ring of the pre-turned rear wheel rim is increased from 11 mm to 13.5 mm, increasing the wall thickness of the C-ring to ensure that there is enough amount during spinning pre-turning. The matching upper mold is driven by an external driving mechanism and abuts against the tops of the two lower molds 9 and then injects molten aluminum alloy liquid. After cooling and forming, reverse drive the bidirectional threaded rod 3 to make the two lower molds 9 move in the opposite direction to open the mold, which is convenient for taking out the formed spinning die blank. When replacing the lower molds of different specifications, pull the plurality of T-shaped blocks 801 respectively. When the connecting rod 803 slides out of the moving seat 5, the circular block 805 will squeeze the spring 804, causing it to deform and contract. Then, the T-shaped block 801 drives the two limiting rods 802 to slide out of the corresponding two fixing holes 10, which is convenient for personnel to take out the lower mold 9 from the moving seat 5. After putting the replaced lower mold 9 into the moving seat 5, release the pull on the T-shaped block 801. Under the elastic reset action of the spring 804, the circular block 805 is pushed to reset. When the connecting rod 803 drives the T-shaped block 801 to reset, the two limiting rods 802 will correspondingly insert into the two fixing holes 10 in the replaced lower mold 9, playing a role of quick fixation, and solving the problem in the background technology that when casting die blanks of different sizes and specifications, a large number of bolts need to be disassembled to replace the two lower molds 9, resulting in trouble when replacing hub molds of different specifications.

[0031] The above are only the preferred embodiments of the present invention, and it is not a limitation to the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent change equivalent embodiments and apply them to other fields. However, as long as it does not depart from the technical content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A production mold for a wheel hub spinning part, comprising a fixing frame (1), characterized in that: A bidirectional threaded rod (3) is rotatably connected between the inner surface walls of the fixed frame (1), a first connecting block (6) is symmetrically arranged on the outer surface of the bidirectional threaded rod (3), the first connecting block (6) is threadedly rotatably connected to the bidirectional threaded rod (3), the tops of the two first connecting blocks (6) are fixedly connected to a movable seat (5), and the inner sides of the two movable seats (5) are provided with a lower mold (9); A clamping assembly (8), wherein the clamping assembly (8) is arranged in a plurality of groups, and the plurality of groups of the clamping assembly (8) are respectively arranged on the outer surfaces of both sides of the two movable seats (5), the clamping assembly (8) comprises a T-shaped block (801), the outer surface of the T-shaped block (801) is symmetrically fixedly connected to a limit rod (802), the outer surface of the T-shaped block (801) is fixedly connected to a connecting rod (803) at a position away from the two limit rods (802), the outer surface of the connecting rod (803) is sleeved with a spring (804), and the end surface of the connecting rod (803) is fixedly connected to a circular block (805).

2. The production mold for a hub spinning part according to claim 1, characterized in that: The spring (804) is located inside the moving seat (5), and the outer surface of the circular block (805) is slidably connected to the inner surface of the moving seat (5).

3. The production mold for a wheel hub spinning part according to claim 1, characterized in that: The outer surface of the connecting rod (803) slides through the outer surface of the movable seat (5), and the length of the connecting rod (803) is greater than the length of the limiting rod (802).

4. The production mold for a wheel hub spinning part according to claim 1, characterized in that: The outer surfaces of the two limit rods (802) slide through the outer surface of the movable seat (5) and extend inwardly. The outer surfaces of both sides of the lower mold (9) are symmetrically provided with fixing holes (10).

5. The production mold for a wheel hub spinning part according to claim 4, characterized in that: The two limiting rods (802) are respectively located inside the two fixing holes (10), and the inner surface of the fixing hole (10) is slidably connected to the outer surface of the limiting rod (802).

6. The production mold for a hub spinning part according to claim 1, characterized in that: The bottom of the movable seat (5) is symmetrically fixedly connected to a second connecting block (7), the inner surface of the fixed frame (1) is symmetrically fixedly connected to a sliding rod (2), and the outer surface of the sliding rod (2) is slidably connected to the inner surface of the second connecting block (7).

7. The production mold for a hub spinning part according to claim 1, characterized in that: One end surface of the bidirectional threaded rod (3) is fixedly connected to a fixing block (4), and the front surface of the fixing block (4) is fixedly connected to a fixing rod (11).

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