Die for solving corner collapse of warm forging inner center wheel

Abstract

The utility model discloses a die for solving corner collapse of a warm forging inner core wheel, and relates to the technical field of warm forging dies. According to the scheme, the die comprises a female die, a cleaning mechanism is arranged above the female die, the female die comprises a die sleeve, a die core is fixedly connected to the interior of the die sleeve, an inner core wheel forming cavity is formed in the die core, and a plurality of air outlets are formed in the die core. When a blank is subjected to warm forging, redundant air and lubricating media located at the end corners can be discharged from the air outlet holes, the situations of corner collapse and black skin of a workpiece can be avoided, and therefore the product quality is improved; and after demolding, the cleaning mechanism can automatically clean the air outlet holes, and the situation that next use is affected due to blockage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of warm forging die technology, specifically a die for solving the problem of collapse of the inner wheel corner in warm forging. Background Technology

[0002] Existing warm forging die structures are prone to corner collapse defects at the cavity corners during forging, resulting in waste. The conventional solution is to increase the corner dimensions during design to ensure the collapse doesn't affect the final product size. However, this method has significant drawbacks: it increases the weight of raw materials and consequently, the amount of subsequent processing required. The cause of corner collapse defects: During warm forging, the die cavity needs lubrication for easy demolding. When the die closes, air remains inside. Due to the presence of the lubricating medium and air, the product cannot properly fill the cavity during forming, resulting in corner collapse defects and black skin. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a mold for solving the problem of core wheel collapse in warm forging, thus resolving the issues raised in the background art.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a mold for solving the problem of collapse of the inner wheel in warm forging, including a die, a cleaning mechanism above the die, the die including a mold sleeve, a mold core fixedly connected inside the mold sleeve, an inner wheel forming cavity opened inside the mold core, and multiple air vents opened inside the mold core, the bottom end of the air vents being connected to the top corner of the inner wheel forming cavity.

[0005] Preferably, the mold core and the mold sleeve are interference fit, which can increase the stability of the mold core.

[0006] Preferably, the top of the vent is connected to the outside of the top of the mold core to facilitate the discharge of air and excess lubricating medium.

[0007] Preferably, the air outlet is angled outwards.

[0008] Preferably, the cleaning mechanism includes a frame disposed above the die, with multiple first cylinders installed through the outer surface of the frame. The movable end of the first cylinder extends into the interior of the frame and is fixedly connected to a fixing block. A second cylinder is fixedly installed through the outer surface of the fixing block at an angle. A fixing sleeve is fixedly connected to the bottom end of the second cylinder. An ejector pin that matches the air outlet is inserted into the interior of the fixing sleeve. After demolding, the interior of each air outlet can be cleaned to avoid blockage.

[0009] Preferably, the inner wall of the fixing sleeve is threaded, and the top of the ejector pin is connected to the internal thread of the fixing sleeve through the thread, which facilitates replacement and maintenance.

[0010] This invention provides a mold for solving the problem of core wheel collapse during warm forging. It has the following beneficial effects:

[0011] This mold solves the problem of corner collapse in the inner wheel during warm forging. When the blank is warm forged, excess air and lubricating medium located at the end corner will be discharged from the vent hole, which can avoid corner collapse and black skin on the workpiece, thereby improving product quality. After demolding, the cleaning mechanism can automatically clean the vent hole to avoid blockage and affect the next use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the concave mold of this utility model;

[0014] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0015] Figure 4 This is a schematic diagram of the cleaning mechanism of this utility model.

[0016] In the figure, 1 is the die cavity; 11 is the die sleeve; 12 is the die core; 13 is the inner ring forming cavity; 14 is the air vent; 2 is the cleaning mechanism; 21 is the frame; 22 is the first cylinder; 23 is the fixing block; 24 is the second cylinder; 25 is the fixing sleeve; and 26 is the ejector pin. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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. Example 1

[0018] like Figures 1 to 3 As shown, a mold for solving the problem of core wheel collapse during warm forging includes a die cavity 1, which includes a mold sleeve 11. A core 12 is fixedly connected inside the mold sleeve 11. The core 12 has a core wheel forming cavity 13 inside and multiple vent holes 14 inside. The bottom end of the vent holes 14 is connected to the top corner of the core wheel forming cavity 13. The core 12 and the mold sleeve 11 are interference-fitted. The top end of the vent holes 14 is connected to the outside of the top end of the core 12. The vent holes 14 are inclined outwards.

[0019] During use, external equipment drives the die 1 to move downwards, which can perform warm forging on the billet. The billet will be squeezed and formed in the inner wheel forming cavity 13, while excess air and lubricating medium will be discharged from the air outlet 14. This can avoid the situation where air and lubricating medium remain at the end corners, causing the workpiece to collapse corners and black skin, thereby improving product quality. Example 2

[0020] like Figure 1 and Figure 4 As shown, a cleaning mechanism 2 is provided above the die 1. The cleaning mechanism 2 includes a frame 21 disposed above the die 1. Multiple first cylinders 22 are installed through the outer surface of the frame 21. The movable end of the first cylinder 22 extends into the interior of the frame 21 and is fixedly connected to a fixing block 23. A second cylinder 24 is installed obliquely through the outer surface of the fixing block 23. A fixing sleeve 25 is fixedly connected to the bottom end of the second cylinder 24. A ejector pin 26 that mates with the air outlet 14 is inserted into the interior of the fixing sleeve 25. The inner wall of the fixing sleeve 25 is threaded, and the top end of the ejector pin 26 is connected to the internal thread of the fixing sleeve 25 through the thread.

[0021] The cleaning mechanism 2 is fixedly installed with the external equipment. After the external equipment drives the die 1 to rise to the designated position, the first cylinder 22 runs and drives the ejector pin 26 to move, so that the bottom end of the ejector pin 26 corresponds to the top of the air outlet 14. Then the second cylinder 24 runs and can drive the ejector pin 26 to move and insert into the air outlet 14, which can clean the air outlet 14 and avoid blockage that would affect the next use.

[0022] Working principle: When in use, external equipment drives the die 1 to move downward, which can perform warm forging of the billet. The billet will be squeezed and formed in the inner wheel forming cavity 13, while excess air and lubricating medium will be discharged from the air outlet 14. This can avoid the situation where air and lubricating medium remain at the end corners, causing the workpiece to collapse corners and black skin, thereby improving product quality.

[0023] The cleaning mechanism 2 is fixedly installed with the external equipment. After the external equipment drives the die 1 to rise to the designated position, the first cylinder 22 runs and drives the ejector pin 26 to move, so that the bottom end of the ejector pin 26 corresponds to the top of the air outlet 14. Then the second cylinder 24 runs and can drive the ejector pin 26 to move and insert into the air outlet 14, which can clean the air outlet 14 and avoid blockage that would affect the next use.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A mold for solving the collapse angle of the inner core gear in warm forging, characterized in that: The device includes a die (1), and a cleaning mechanism (2) is provided above the die (1). The die (1) includes a mold sleeve (11), and a mold core (12) is fixedly connected inside the mold sleeve (11). An inner wheel forming cavity (13) is opened inside the mold core (12), and multiple air vents (14) are opened inside the mold core (12). The bottom end of the air vent (14) is connected to the top corner of the inner wheel forming cavity (13).

2. The mold for solving the collapse angle of the inner core gear in warm forging according to claim 1, characterized in that: The mold core (12) and the mold sleeve (11) are interference fit.

3. The mold for solving the collapse angle of the inner core gear in warm forging according to claim 1, characterized in that: The top of the vent (14) is connected to the outside of the top of the mold core (12).

4. The mold for solving the collapse angle of the inner core gear in warm forging according to claim 1, characterized in that: The air outlet (14) is set at an angle to the outward.

5. The mold for solving the collapse angle of the inner core gear in warm forging according to claim 1, characterized in that: The cleaning mechanism (2) includes a frame (21) disposed above the die (1). Multiple first cylinders (22) are installed through the outer surface of the frame (21). The movable end of the first cylinder (22) extends into the interior of the frame (21) and is fixedly connected to a fixing block (23). A second cylinder (24) is installed obliquely through the outer surface of the fixing block (23). A fixing sleeve (25) is fixedly connected to the bottom end of the second cylinder (24). A ejector pin (26) that cooperates with the air outlet (14) is inserted into the interior of the fixing sleeve (25).

6. The mold for solving the collapse angle of the inner core gear in warm forging according to claim 5, characterized in that: The inner wall of the fixed sleeve (25) is threaded, and the top end of the ejector pin (26) is connected to the internal thread of the fixed sleeve (25) through the thread.

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