Spline extrusion mold convenient to demold

Abstract

The utility model relates to the technical field of processing dies, in particular to a spline extruding die convenient to demould, which comprises a spline extruding die for manufacturing a spline on a blank in an extruding manner, a movable die for mounting the spline extruding die, a fixed die for positioning the blank, and a demoulding mechanism for pushing out a finished product, the movable mold is movably arranged opposite to the fixed mold in the moving direction when the spline extruding mold works, and the demolding part of the demolding mechanism is aligned with the spline extruding part of the spline extruding mold and is in transmission connection with a finished product in the spline extruding mold after spline extruding work is completed. The spline extrusion forming device can realize a series of work such as blank positioning, spline extrusion forming and automatic demolding of finished products, is high in automation degree, can quickly push out the finished products after the spline extrusion work is finished through transmission connection of the demolding part of the demolding mechanism and the finished products, can effectively avoid secondary collision between the spline and the spline extrusion mold, and improves the production efficiency. The demolding efficiency is greatly improved, and the forming quality of a finished product is high.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, specifically to an extrusion key mold that facilitates demolding. Background Technology

[0002] A spline is a connection method used to transmit torque. It typically consists of a shaft with multiple longitudinal teeth and a matching bore. These teeth can be spurs or helical teeth, allowing for high concentricity between the two parts and the ability to withstand large torques. In manufacturing, to improve processing efficiency and accuracy, cold extrusion is generally used to form splines. This process produces parts with high strength and good surface quality, while also reducing post-processing steps. However, splines made using cold extrusion are tightly connected to the extrusion die after forming. Current demolding methods commonly involve applying tension to pull the finished product out. However, in practice, when the finished product is long or the tension is unevenly distributed, secondary collisions between the spline and the extrusion die can easily occur. This damages the spline and increases the wear rate of the extrusion die, shortening its service life, resulting in poor economic efficiency and inferior finished product quality. Utility Model Content

[0003] The technical problem to be solved by this utility model is that the existing spline processing molds have poor forming effect, short mold life, and are inconvenient to demold, which easily damages the finished product, resulting in poor forming quality and low forming efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a convenient demolding spline mold, comprising a spline mold for producing splines on a blank by extrusion, a moving mold for mounting the spline mold, a fixed mold for positioning the blank, and a demolding mechanism for ejecting the finished product. The spline mold is fixedly mounted on the moving mold, and the moving mold is movably arranged opposite to the fixed mold along the moving direction of the spline mold during operation. The demolding part of the demolding mechanism is aligned with the spline part of the spline mold and is connected to the finished product in the spline mold after the spline operation is completed. The finished product in the spline mold is detached from the spline mold under the drive of the demolding mechanism.

[0005] When this utility model is in operation, it can realize a series of tasks such as blank positioning, spline extrusion molding, and automatic demolding of finished products. It has a high degree of automation. At the same time, through the demolding part of the demolding mechanism connected to the finished product transmission, the finished product can be quickly ejected after the spline extrusion is completed. It can effectively avoid secondary collision between the spline and the spline mold, greatly improve demolding efficiency, demolding effect, and high molding quality of finished products.

[0006] Preferably, the fixed mold is provided with a positioning mechanism for fixing the blank and a blank conveying mechanism for driving the blank back and forth between the loading / unloading station and the extrusion point station. The loading / unloading station is located on the side of the fixed mold away from the moving mold. The blank conveying mechanism is installed on the fixed mold, and the positioning mechanism is installed on the moving part of the blank conveying mechanism. The blank installed on the positioning mechanism moves to the extrusion point station under the drive of the blank conveying mechanism to perform the extrusion point work.

[0007] In operation, this invention employs a billet conveying mechanism to input the billet and output the finished product, which can further improve the demolding efficiency of the finished product and avoid damage to the finished product caused by collision with the moving mold during demolding. This greatly improves the molding quality of the finished product and increases economic benefits.

[0008] Preferably, the billet conveying mechanism includes a translation slide rail, a translation slide block, and a translation drive device. The translation slide rail extends along the direction of billet translation and is arranged on the fixed mold. The translation slide block is movably mounted on the translation slide rail. The positioning mechanism is mounted on the translation slide block. The translation slide block is connected to the output part of the translation drive device and, driven by the translation drive device, carries the positioning mechanism back and forth between the material pick-up and drop-off station and the spline extrusion station.

[0009] Preferably, the positioning mechanism includes a directional angle bar and an angle bar mounting base. The directional angle bar is arranged vertically and fixedly mounted on the moving part of the billet conveying mechanism through the angle bar mounting base.

[0010] Preferably, the moving mold is provided with a mounting base and a locking nut. The mounting base is fixedly mounted on the moving mold. The end of the mounting base near the fixed mold is recessed with a mounting position for mounting the extrusion key die. The extrusion key die is limited and mounted in the mounting position by means of a locking nut threadedly connected to the mounting base.

[0011] Preferably, the mounting mold base is provided with a through hole for the demolding part of the demolding mechanism to pass through, and the demolding part of the demolding mechanism is aligned with the extrusion part of the extrusion mold through the through hole of the mounting mold base.

[0012] Preferably, the system also includes several upper limit posts and lower limit posts corresponding to the upper limit posts. The upper limit posts are arranged on the end face of the moving mold near the fixed mold, and the lower limit posts are arranged on the end face of the fixed mold near the moving mold, aligned with their respective upper limit posts. The upper limit posts and lower limit posts cooperate with each other when the spline is working.

[0013] Preferably, a buffer mechanism is also included, which includes a buffer device and a buffer mounting base. The buffer device is mounted on the fixed mold via the buffer mounting base and is located at the end of the moving path of the moving part of the billet conveying mechanism. The buffer part of the buffer device abuts against the moving part of the billet conveying mechanism when the moving part of the billet conveying mechanism moves to the end of its moving path.

[0014] Preferably, the demolding mechanism is provided with an ejector bar and an ejector device. The ejector device is movably arranged facing the extrusion mold along the moving direction of the extrusion mold during operation. The ejector device is connected to the corresponding driving device through the ejector bar. The ejector device is connected to the finished product in the extrusion mold under the drive of the ejector bar.

[0015] The beneficial technical effects of this utility model include:

[0016] 1. This utility model can realize a series of tasks such as blank positioning, spline extrusion molding, and automatic demolding of finished products. It has a high degree of automation. At the same time, through the demolding part of the demolding mechanism connected to the finished product transmission, the finished product can be quickly ejected after the spline extrusion is completed. It can effectively avoid secondary collision between the spline and the spline mold, greatly improve demolding efficiency, demolding effect, and high molding quality of the finished product.

[0017] 2. This utility model uses a billet conveying mechanism to realize the input of billets and the output of finished products, which can further improve the demolding efficiency of finished products and avoid the situation where the finished products are damaged due to collision with the moving mold during demolding. This greatly improves the molding quality of finished products and increases economic benefits.

[0018] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Appendix Figure 1 This is a schematic diagram of the structure of a knurling mold that facilitates demolding.

[0021] Appendix Figure 2 A partial sectional view of a spline mold for easy demolding;

[0022] Appendix Figure 3 for Figure 1 A magnified view of a portion of point A in the middle. Detailed Implementation

[0023] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0024] In the following description, terms such as “inner,” “outer,” “upper,” “lower,” “left,” and “right” are used only to facilitate the description of the embodiments and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Example 1:

[0026] Please see the appendix Figure 1 This embodiment discloses a spline mold that facilitates demolding, including a spline mold 1 for making splines on a blank by extrusion, a moving mold 2 for mounting the spline mold 1, a fixed mold 3 for positioning the blank, and a demolding mechanism 4 for ejecting the finished product. The following is a detailed description with reference to the accompanying drawings.

[0027] Please see the appendix Figure 1 To be continued Figure 3 In this embodiment, the spline mold 1 is fixedly installed on the moving mold 2. The moving mold 2 is movably arranged opposite to the fixed mold 3 along the moving direction of the spline mold 1 during operation. The demolding part of the demolding mechanism 4 is aligned with the spline part of the spline mold 1 and is connected to the finished product in the spline mold 1 after the spline operation is completed. The finished product in the spline mold 1 is released from the spline mold 1 under the drive of the demolding mechanism 4.

[0028] In this embodiment, the blank positioning, spline extrusion molding, and automatic demolding of the finished product are all achieved. The degree of automation is high. At the same time, the demolding part of the demolding mechanism 4 is connected to the finished product transmission, which can quickly push out the finished product after the spline extrusion is completed. This can effectively avoid secondary collision between the spline and the spline mold 1, greatly improve the demolding efficiency, and achieve good demolding effect and high molding quality of the finished product.

[0029] As a further improvement of this embodiment, the fixed mold 3 is provided with a positioning mechanism 31 for fixing the blank and a blank conveying mechanism 32 for driving the blank to move back and forth between the pick-up and drop-off station and the extrusion point station. The pick-up and drop-off station is located on the side of the fixed mold 3 away from the moving mold 2. The blank conveying mechanism 32 is installed on the fixed mold 3, and the positioning mechanism 31 is installed on the moving part of the blank conveying mechanism 32. The blank installed on the positioning mechanism 31 moves to the extrusion point station under the drive of the blank conveying mechanism 32 to perform the extrusion point work.

[0030] In this embodiment, the blank conveying mechanism 32 is used to realize the input of blanks and the output of finished products, which can further improve the demolding efficiency of finished products and avoid the situation where the finished products are damaged due to collision with the moving mold 2 during demolding. This greatly improves the molding quality of finished products and increases economic benefits.

[0031] Preferably, the billet conveying mechanism 32 includes a translational slide rail 321, a translational slide block 322, and a translational drive device 323. The translational slide rail 321 extends along the direction of billet translation and is arranged on the fixed mold 3. The translational slide block 322 is movably mounted on the translational slide rail 321. The positioning mechanism 31 is mounted on the translational slide block 322. The translational slide block 322 is connected to the output part of the translational drive device 323 and, driven by the translational drive device 323, moves the positioning mechanism 31 back and forth between the material handling station and the spline extrusion station. In specific implementation, in order to reduce the flatness... To mitigate the impact on the fixed mold 3 when the sliding block 322 moves, this embodiment also includes a buffer mechanism 7. The buffer mechanism 7 includes a buffer device 71 and a buffer mounting base 72. The buffer device 71 is mounted on the fixed mold 3 via the buffer mounting base 72 and is located at the end of the moving path of the moving part of the billet conveying mechanism 32. The buffer part of the buffer device 71 abuts against the moving part of the billet conveying mechanism 32 when the moving part of the billet conveying mechanism 32 moves to the end of its moving path. In specific implementations, the buffer device 71 can be a hydraulic buffer rod, vibration damping silicone, etc.

[0032] Preferably, the positioning mechanism 31 is provided with a directional angle bar 311 and an angle bar mounting seat 312. The directional angle bar 311 is arranged vertically and fixedly installed on the moving part of the blank conveying mechanism 32 through the angle bar mounting seat 312. Of course, the corresponding positioning mechanism 31 can also be replaced according to the actual parts to be processed, such as a flat-jaw vise, a clamping system, etc.

[0033] The moving mold 2 is provided with a mounting base 21 and a locking nut 22. The mounting base 21 is fixedly installed on the moving mold 2. The end of the mounting base 21 near the fixed mold 3 is recessed with a mounting position for installing the extrusion key mold 1. The extrusion key mold 1 is limited and installed in the mounting position by the locking nut 22 and the mounting base 21 through a threaded connection. During maintenance, the extrusion key mold 1 can be replaced simply by unscrewing the locking nut 22, thereby reducing the workload of maintenance personnel. In specific implementation, the mounting base 21 is provided with a through hole 211 for the demolding part of the demolding mechanism 4 to pass through. The demolding part of the demolding mechanism 4 is aligned with the extrusion key part of the extrusion key mold 1 through the through hole 211 of the mounting base 21.

[0034] Preferably, it also includes several upper limit posts 5 and lower limit posts 6 corresponding to the several upper limit posts 5. The several upper limit posts 5 are respectively arranged on the end face of the moving mold 2 near the fixed mold 3, and the several lower limit posts 6 are respectively arranged on the end face of the fixed mold 3 near the moving mold 2, aligned with their respective upper limit posts 5. The upper limit posts 5 and lower limit posts 6 cooperate with each other when the spline is working.

[0035] As a further improvement of this embodiment, the demolding mechanism 4 is provided with an ejector bar 41 and an ejector 42. The ejector 42 is movably arranged facing the extrusion mold 1 along the moving direction of the extrusion mold 1 during operation. The ejector 42 is connected to the corresponding driving device through the ejector bar 41. The ejector 42 is connected to the finished product in the extrusion mold 1 under the drive of the ejector bar 41. In specific implementation, the driving device can be set to share the driving equipment with the moving mold 2. When the moving mold 2 rises, the ejector 42 descends to eject the finished product. Of course, an independent driving device can also be used to drive the ejector 42.

[0036] The beneficial technical effects of this embodiment include: the present invention can realize a series of tasks such as blank positioning, spline extrusion molding, and automatic demolding of finished products, with a high degree of automation. At the same time, through the demolding part of the demolding mechanism connected to the finished product transmission, the finished product can be quickly pushed out after the spline extrusion work is completed, which can effectively avoid secondary collision between the spline and the spline mold, greatly improve demolding efficiency, have good demolding effect, and high molding quality of finished products.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A convenient extrusion die for splicing, characterized in that: The system includes a spline die (1) for extruding splines onto a blank by extrusion, a moving die (2) for mounting the spline die (1), a fixed die (3) for positioning the blank, and a demolding mechanism (4) for ejecting the finished product. The spline die (1) is fixedly mounted on the moving die (2). The moving die (2) is movably arranged opposite to the fixed die (3) along the moving direction of the spline die (1) during operation. The demolding part of the demolding mechanism (4) is aligned with the spline part of the spline die (1) and is connected to the finished product inside the spline die (1) after the spline operation is completed. The finished product inside the spline die (1) is ejected from the spline die (1) under the drive of the demolding mechanism (4).

2. The extrusion spline mold for easy demolding according to claim 1, characterized in that: The fixed mold (3) is provided with a positioning mechanism (31) for fixing the blank and a blank conveying mechanism (32) for driving the blank to move back and forth between the pick-up and drop-off station and the extrusion point station. The pick-up and drop-off station is located on the side of the fixed mold (3) away from the moving mold (2). The blank conveying mechanism (32) is installed on the fixed mold (3). The positioning mechanism (31) is installed on the moving part of the blank conveying mechanism (32). The blank installed on the positioning mechanism (31) moves to the extrusion point station under the drive of the blank conveying mechanism (32) to perform the extrusion point work.

3. The extrusion spline mold for easy demolding according to claim 2, characterized in that: The billet conveying mechanism (32) includes a translation slide rail (321), a translation slide block (322), and a translation drive device (323). The translation slide rail (321) extends along the direction of billet translation and is arranged on the fixed mold (3). The translation slide block (322) is movably mounted on the translation slide rail (321). The positioning mechanism (31) is mounted on the translation slide block (322). The translation slide block (322) is connected to the output part of the translation drive device (323) and, driven by the translation drive device (323), carries the positioning mechanism (31) back and forth between the material pick-up and drop-off station and the spline station.

4. The extrusion spline mold for easy demolding according to claim 2, characterized in that: The positioning mechanism (31) is provided with a directional angle bar (311) and an angle bar mounting seat (312). The directional angle bar (311) is arranged vertically and fixedly installed on the moving part of the billet conveying mechanism (32) through the angle bar mounting seat (312).

5. The extrusion spline mold for easy demolding according to claim 1, characterized in that: The moving mold (2) is provided with a mounting mold base (21) and a locking nut (22). The mounting mold base (21) is fixedly mounted on the moving mold (2). The mounting mold base (21) has a recessed mounting position for mounting the extrusion key die (1) at one end near the fixed mold (3). The extrusion key die (1) is limited and mounted in the mounting position by means of a threaded connection between the locking nut (22) and the mounting mold base (21).

6. The extrusion spline mold for easy demolding according to claim 5, characterized in that: The mounting base (21) is provided with a through hole (211) for the demolding part of the demolding mechanism (4) to pass through. The demolding part of the demolding mechanism (4) is aligned with the extrusion part of the extrusion mold (1) through the through hole (211) of the mounting base (21).

7. The extrusion spline mold for easy demolding according to claim 1, characterized in that: It also includes several upper limit posts (5) and lower limit posts (6) corresponding to the several upper limit posts (5). The several upper limit posts (5) are respectively arranged on one end face of the moving mold (2) near the fixed mold (3). The several lower limit posts (6) are respectively arranged on one end face of the fixed mold (3) near the moving mold (2) with their respective upper limit posts (5). The upper limit posts (5) and lower limit posts (6) cooperate with each other when the spline is working.

8. The extrusion spline mold for easy demolding according to claim 1, characterized in that: It also includes a buffer mechanism (7), which includes a buffer device (71) and a buffer mounting base (72). The buffer device (71) is mounted on the fixed mold (3) via the buffer mounting base (72) and is located at the end of the moving path of the moving part of the billet conveying mechanism (32). The buffer part of the buffer device (71) abuts against the moving part of the billet conveying mechanism (32) when the moving part of the billet conveying mechanism (32) moves to the end of its moving path.

9. The extrusion spline mold for easy demolding according to claim 1, characterized in that: The demolding mechanism (4) is provided with an ejector bar (41) and an ejector (42). The ejector (42) is movably arranged opposite to the extrusion mold (1) along the moving direction of the extrusion mold (1) during operation. The ejector (42) is connected to the corresponding driving device through the ejector bar (41). The ejector (42) is connected to the finished product in the extrusion mold (1) under the drive of the ejector bar (41).

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