A closed forging device for metal shaft parts

Abstract

The utility model relates to the technical field of metal processing, and discloses a closed forging device for metal shaft parts, including a connecting column 1 and a base, a storage chamber is provided on the left side of the top surface of the base, spring retractors are fixedly connected to the left and right sides of the bottom of the inner cavity of the storage chamber, a cross plate is fixedly connected to the top of the spring retractor, and top column 1 and top column 2 are fixedly connected to the top of the cross plate in sequence from the outside to the inside, a lower die groove is provided at the top of the base and located at the top of the storage chamber, a turntable is provided at the center of the top surface of the base, an outer disk is fixedly connected to the top of the base and located at the outer ring of the turntable, and a plurality of circular holes are provided at the top of the turntable. The utility model realizes the ejection of forgings through structures such as top column 1, top column 2, top column 3, spring retractor, storage chamber, and cross plate, avoids the sticking and jamming of forgings in the die cavity, and improves the demoulding efficiency and quality of forgings.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing, and more specifically, to a closed forging device for metal shaft parts. Background Art

[0002] Metal shaft parts are important parts widely used in machinery, automobiles, aviation and other fields. Their shape and size directly affect the performance and life of the parts. In order to improve the quality and precision of metal shaft parts, forging is usually used to form the blank. Forging is a processing method that uses external force to plastically deform the metal so that it fills the mold cavity and forms the required shape and size. Forging can improve the organization and performance of the metal and improve the strength and toughness of the parts. At present, the commonly used forging methods are open forging and closed forging. Open forging refers to free forging of the blank without a mold cavity to form the required contour. Closed forging refers to extrusion forging of the blank with a mold cavity to form the required shape and size. Compared with open forging, closed forging has higher production efficiency and quality, saves more materials and energy, and is more suitable for mass production of metal shaft parts.

[0003] However, closed forging also has some problems. One of the main problems is that it is difficult to demold the forged parts. During the forging process, the metal will adhere and rub against the mold under the action of high temperature and high pressure, causing the forged parts to stick and get stuck in the mold cavity. This not only affects the demolding efficiency and quality of the forged parts, but also increases the wear and damage of the mold, reducing the service life of the mold. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a closed forging device for metal shaft parts, which has the advantages of realizing the ejection of forged parts, avoiding the sticking and jamming of forged parts in the die cavity, and improving the demoulding efficiency and quality of forged parts.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a closed forging device for metal shaft parts, comprising a connecting column and a base, a storage chamber is arranged on the left side of the top surface of the base, and spring expanders are fixedly connected to the left and right sides of the bottom of the inner cavity of the storage chamber, a cross plate is fixedly connected to the top of the spring expander, and a top column one and a top column two are fixedly connected to the top of the cross plate in sequence from the outside to the inside, a lower die groove is provided at the top of the base and located at the top of the storage chamber, a turntable is arranged at the center of the top surface of the base, an outer disk is fixedly connected to the top of the base and located at the outer ring of the turntable, a plurality of circular holes are provided at the top of the turntable, an annular groove is provided at the bottom of the turntable, and a plurality of sockets are provided at the top of the inner cavity of the annular groove, the tops of the top column one and the top column two pass through the base and extend to the inner cavity of the annular groove between the outer disk and the turntable respectively, and a top column three is fixedly connected to the left and right sides of the bottom of the connecting column one.

[0006] As a preferred technical solution of the utility model, limiting grooves are provided on both sides of the inner cavity of the storage chamber, and a limiting plate is fixedly connected to one side of the transverse plate close to the limiting groove, and the limiting plate is slidably connected to the limiting groove.

[0007] As a preferred technical solution of the utility model, the four corners of the top surface of the base are fixedly connected with hydraulic cylinders, the top of the hydraulic cylinder is fixedly connected with a top plate, the left side of the bottom surface of the top plate is fixedly connected to the top of connecting column one, the right side of the bottom surface of the top plate is fixedly connected with connecting column two, and the center of the bottom surface of connecting column one is fixedly connected with an upper mold column.

[0008] As a preferred technical solution of the utility model, a feed opening is opened on the rear side of the top surface of the base, a feed pipe corresponding to the feed opening is fixedly connected to the rear side of the bottom surface of the base, support legs are fixedly connected to the four corners of the bottom surface of the base, and rubber pads are fixedly connected to the bottom of the support legs.

[0009] As a preferred technical solution of the utility model, a motor 1 is arranged at the center of the bottom surface of the base, the output end of the motor 1 is fixedly connected to a rotating column, the top of the rotating column passes through the base and is fixedly connected to the bottom of the turntable, the front side of the motor 1 is fixedly connected to a mounting plate, and the top of the mounting plate is fixedly connected to the bottom of the base.

[0010] As a preferred technical solution of the utility model, a storage groove is opened on the left side of the connecting column 2, and the inner cavity of the storage groove is installed with the motor 2. The bottom of the motor 2 is fixedly connected with a rotating rod, and the bottom of the rotating rod passes through the connecting column 2 and is fixedly connected with a cleaner.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model realizes the ejection of forgings through structures such as ejector column 1, ejector column 2, ejector column 3, spring retractor, storage chamber, and cross plate, thereby avoiding the sticking and jamming of forgings in the die cavity and improving the demoulding efficiency and quality of forgings. Specifically, when the hydraulic cylinder contracts, the connecting column 1 will move downward, driving the upper die column to insert downward into the lower die groove, performing closed forging on the blank, so that the metal fills the die cavity to form a forged part. At this time, due to the action of ejector column 3, ejector column 1 and ejector column 2 will be pushed downward until the top of ejector column 2 is flush with the bottom of the inner cavity of the lower die groove, so that the shape and size of the forged part can be guaranteed. It is not affected by the ejector column. At the same time, since the descending distance of ejector column one and ejector column two is limited by the limit groove and the limit plate, the ejector column can be prevented from interfering or colliding with the forging, and deformation and damage of the forging can be avoided. When the hydraulic cylinder extends, connecting column one will move upward accordingly, driving the upper die column to exit the lower die groove upward. At this time, due to the action of the spring retractor, ejector column one and ejector column two will be pulled upward, and ejector column two will eject the forging, causing the forging to detach from the lower die groove. At the same time, since the rising distance of ejector column one and ejector column two is limited by the limit groove and the limit plate, the ejector column can be prevented from excessively rising and affecting the working state of the forging device.

[0013] 2. The utility model realizes the automatic conveying of forgings through a turntable, a motor, a discharge port and a discharge pipe, thereby improving the conveying efficiency and automation degree of forgings. Specifically, the turntable is a structure for carrying and conveying forgings. A plurality of circular holes are provided on its top for placing forgings. Its bottom is fixedly connected to the top of a rotating column and rotates with the rotation of the rotating column. The motor is a device that uses electric energy to drive the rotating column. It can accurately control the rotation speed and angle of the turntable according to different forging process requirements to realize the positioning and movement of the forgings. When the forgings are ejected from the lower die groove, the turntable will rotate a certain angle to bring the forgings to the discharge port and convey them to subsequent processing equipment through the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the structure of the utility model;

[0015] Figure 2 This is a side view of the structure of the utility model;

[0016] Figure 3 This is a top view of the turntable structure of the utility model;

[0017] Figure 4 This is a top view of the base structure of the utility model;

[0018] Figure 5 This is a top sectional view of the base of the utility model;

[0019] Figure 6 This is a front cross-sectional view of the base of the utility model;

[0020] Figure 7 This is a bottom view of the turntable structure of the utility model.

[0021] In the figure: 1. Connecting column one; 2. Connecting column two; 3. Upper die column; 4. Outer plate; 5. Base; 6. Rubber pad; 7. Mounting plate; 8. Feeding tube; 9. Support leg; 10. Top column three; 11. Hydraulic cylinder; 12. Motor two; 13. Cleaner; 14. Socket; 15. Turntable; 16. Motor one; 17. Circular hole; 18. Lower die groove; 19. Feeding port; 20. Rotating column; 21. Top column one; 22. Spring retractor; 23. Top column two; 24. Storage chamber; 25. Horizontal plate; 26. Annular groove; 27. Limit plate; 28. Limit groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figures 1 to 7 As shown, the utility model provides a closed forging device for metal shaft parts, including a connecting column 1 and a base 5, a storage chamber 24 is arranged on the left side of the top surface of the base 5, and spring retractors 22 are fixedly connected to the left and right sides of the bottom of the inner cavity of the storage chamber 24, and a cross plate 25 is fixedly connected to the top of the spring retractor 22, and a top column 21 and a top column 23 are fixedly connected to the top of the cross plate 25 from the outside to the inside in sequence, and a lower die groove 18 is opened on the top of the base 5 and located at the top of the storage chamber 24, and the top surface of the base 5 is fixedly connected to the top of the storage chamber 24. A turntable 15 is provided at the center of the surface, an outer disk 4 is fixedly connected to the top of the base 5 and the outer ring of the turntable 15, a plurality of circular holes 17 are provided on the top of the turntable 15, an annular groove 26 is provided at the bottom of the turntable 15, a plurality of sockets 14 are provided on the top of the inner cavity of the annular groove 26, the tops of the top column 1 21 and the top column 23 penetrate the base 5 and extend to the inner cavity between the outer disk 4 and the turntable 15 and the annular groove 26 respectively, and the top column 3 10 is fixedly connected to the left and right sides of the bottom of the connecting column 1.

[0024] The ejection of the forged part can be achieved by the coordinated use of the ejector column 1 21, the ejector column 23 and the ejector column 3 10. When the hydraulic cylinder 11 contracts, the connecting column 1 will move downward, driving the upper die column 3 to insert downward into the lower die groove 18, and the blank will be closed forged to fill the die cavity with metal to form a forged part. At the same time, the ejector column 3 10 will contact the ejector column 1 21, pushing the ejector column 1 21 and the ejector column 2 23 to move downward until the top of the ejector column 23 is flush with the bottom of the inner cavity of the lower die groove 18, so that the blank is closed forged. It can ensure that the shape and size of the forged part are not affected by the ejector column. When the hydraulic cylinder 11 extends, the connecting column 1 will move upward accordingly, driving the upper die column 3 to move upward out of the lower die groove 18. At this time, the spring expander 22 will return to its original state, driving the ejector column 1 21 and the ejector column 2 23 to move upward. The ejector column 23 will eject the forged part, causing the forged part to be separated from the lower die groove 18. Then, the turntable 15 will rotate to bring the forged part to the discharge port 19 and transport it to the subsequent processing equipment through the discharge pipe 8.

[0025] The left and right sides of the inner cavity of the storage chamber 24 are both provided with limiting grooves 28 , and the side of the transverse plate 25 close to the limiting groove 28 is fixedly connected to the limiting plate 27 , and the limiting plate 27 is slidably connected to the limiting groove 28 .

[0026] By setting the limit groove 28 and the limit plate 27, the position of the top column 21 and the top column 23 can be controlled to prevent them from excessive movement or deviation during the forging process, thereby ensuring the accuracy of the shape and size of the forged part. When the top column 21 and the top column 23 move downward, the limit plate 27 will slide along the limit groove 28 until it reaches the bottom of the limit groove 28, thereby limiting the maximum descending distance of the top column 21 and the top column 23 to avoid interference or collision with the forged part. When the top column 21 and the top column 23 move upward, the limit plate 27 will slide along the limit groove 28 until it reaches the top of the limit groove 28, thereby limiting the maximum rising distance of the top column 21 and the top column 23.

[0027] Among them, the four corners of the top surface of the base 5 are fixedly connected with a hydraulic cylinder 11, the top of the hydraulic cylinder 11 is fixedly connected with a top plate, the left side of the bottom surface of the top plate is fixedly connected to the top of the connecting column 1, the right side of the bottom surface of the top plate is fixedly connected with a connecting column 2, and the center of the bottom surface of the connecting column 1 is fixedly connected with an upper mold column 3.

[0028] By setting the hydraulic cylinder 11 and the upper die column 3, closed forging of metal shaft parts can be achieved, and the quality and precision of forged parts can be improved. The hydraulic cylinder 11 is a device that uses the pressure of hydraulic oil to transmit power. It can accurately control the moving speed and stroke of the upper die column 3 according to different forging process requirements to achieve constant or variable speed forging of the blank. The upper die column 3 is a mold that matches the lower die groove 18. The top shape of it corresponds to the shape of the metal shaft part to be forged. Under the push of the hydraulic cylinder 11, it can be inserted downward into the lower die groove 18 to extrude the blank so that the metal fills the die cavity to form a forged part. By using the hydraulic cylinder 11 and the upper die column 3, closed forging of metal shaft parts can be achieved, and the quality and precision of forged parts can be improved.

[0029] Among them, a discharge port 19 is opened on the rear side of the top surface of the base 5, and a discharge pipe 8 corresponding to the discharge port 19 is fixedly connected to the rear side of the bottom surface of the base 5. Support legs 9 are fixedly connected to the four corners of the bottom surface of the base 5, and a rubber pad 6 is fixedly connected to the bottom of the support leg 9.

[0030] Through the support legs 9 and the rubber pads 6, stable support and effective shock absorption of the closed forging device can be achieved to ensure the safety and smoothness of the forging process. The support legs 9 are a structure for supporting the base 5, which can keep the base 5 at a certain distance from the ground to prevent the base 5 from being affected by the unevenness of the ground or debris, thereby affecting the working state of the forging device. The rubber pads 6 are a structure for reducing the vibration and noise generated during the forging process, which can absorb the impact force and vibration force generated by the forging device during movement, reduce the impact of the forging device on the ground, and reduce interference with the surrounding environment and human body.

[0031] Among them, a motor 16 is arranged at the center of the bottom surface of the base 5, and the output end of the motor 16 is fixedly connected to the rotating column 20, the top of the rotating column 20 passes through the base 5 and is fixedly connected to the bottom of the turntable 15, and the front side of the motor 16 is fixedly connected to the mounting plate 7, and the top of the mounting plate 7 is fixedly connected to the bottom of the base 5.

[0032] The motor 16 can be used to control the rotation of the turntable 15, thereby improving the efficiency and automation of conveying forged parts. The motor 16 is a device that uses electric energy to drive the rotating column 20. It can accurately control the rotation speed and angle of the turntable 15 according to different forging process requirements to achieve the positioning and movement of the forged parts. The turntable 15 is a structure for carrying and conveying forged parts. A plurality of circular holes 17 are provided on its top for placing forged parts. Its bottom is fixedly connected to the top of the rotating column 20 and rotates with the rotation of the rotating column 20. When the forged part is ejected from the lower die groove 18, the turntable 15 will rotate a certain angle to bring the forged part to the discharge port 19 and convey it to the subsequent processing equipment through the discharge pipe 8.

[0033] Among them, a storage groove is opened on the left side of the connecting column 2, and the inner cavity of the storage groove is installed with a motor 12. The bottom of the motor 12 is fixedly connected to a rotating rod, and the bottom of the rotating rod passes through the connecting column 2 and is fixedly connected to a cleaner 13.

[0034] By setting up the motor 2 12 and the cleaner 13, the inner surface of the circular hole 17 can be cleaned. The motor 2 12 is a device that uses electric energy to drive a rotating rod. It can accurately control the rotation speed and angle of the cleaner 13 according to different forging process requirements to achieve cleaning of the inner cavity of the circular hole 17. The cleaner 13 is a structure for removing burrs, oxide scales, dust and other impurities remaining in the inner cavity of the circular hole 17. A number of brushes are arranged at the bottom thereof, which rotate with the rotation of the rotating rod to brush the forging. When the hydraulic cylinder 11 contracts, the cleaner 13 will enter the circular hole 17 on the far right to clean the inner cavity of the circular hole 17.

[0035] The working principle and use process of this utility model:

[0036] Place the blank in a circular hole 17 on the top of the turntable 15 so that the center of the blank is aligned with the center of the circular hole 17, and then start the motor 16 to rotate the turntable 15 and bring the blank to the bottom of the upper die column 3; start the hydraulic cylinder 11 to move the connecting column 1 downward, drive the upper die column 3 downward to insert into the lower die groove 18, and perform closed forging on the blank so that the metal fills the die cavity to form a forged part. At the same time, the top column 3 10 will contact the top column 1 21, pushing the top column 1 21 and the top column 23 to move downward until the top of the top column 23 is flush with the bottom of the inner cavity of the lower die groove 18, so as to ensure that the shape and size of the forged part are not affected by the top column. In the process of the top column 1 21 and the top column 23 moving downward, the limit plate 27 will slide along the limit groove 28 to limit the maximum descending distance of the top column 1 21 and the top column 23 to prevent Interference or collision with the forged part occurs. At the same time, motor 2 12 is started to make the cleaner 13 enter the next circular hole 17 to clean the inner cavity of the circular hole 17 to remove residual burrs, oxide scale, dust and other impurities; hydraulic cylinder 11 is started to make the connecting column 1 move upward, driving the upper die column 3 to exit the lower die groove 18 upward. At this time, the spring retractor 22 will return to its original state, driving the top column 1 21 and the top column 23 to move upward, and the top column 23 will eject the forged part, so that the forged part is separated from the lower die groove 18. In the process of the top column 1 21 and the top column 23 moving upward, the limit plate 27 will slide along the limit groove 28 to limit the maximum rising distance of the top column 1 21 and the top column 23; motor 16 is started to make the turntable 15 rotate a certain angle, bring the forged part to the discharge port 19, and transport it to the subsequent processing equipment through the discharge pipe 8.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A closed forging device for metal shaft parts, comprising a connecting column (1) and a base (5), characterized in that: A storage chamber (24) is arranged on the left side of the top surface of the base (5), and spring retractors (22) are fixedly connected to the left and right sides of the bottom of the inner cavity of the storage chamber (24), and a transverse plate (25) is fixedly connected to the top of the spring retractor (22), and a top column 1 (21) and a top column 2 (23) are fixedly connected to the top of the transverse plate (25) in sequence from the outside to the inside, and a lower mold groove (18) is opened at the top of the base (5) and located at the top of the storage chamber (24), and a turntable (15) is arranged at the center of the top surface of the base (5), and the top of the base (5) is fixedly connected to the top of the storage chamber (24). The outer ring of the rotating disk (15) is fixedly connected to an outer disk (4), the top of the rotating disk (15) is provided with a plurality of circular holes (17), the bottom of the rotating disk (15) is provided with an annular groove (26), the top of the inner cavity of the annular groove (26) is provided with a plurality of sockets (14), the tops of the top column 1 (21) and the top column 2 (23) pass through the base (5) and extend to the inner cavity of the annular groove (26) between the outer disk (4) and the rotating disk (15), respectively, and the left and right sides of the bottom of the connecting column 1 (1) are fixedly connected to the top column 3 (10).

2. A closed forging device for metal shaft parts according to claim 1, characterized in that: The left and right sides of the inner cavity of the storage chamber (24) are both provided with limiting grooves (28); the side of the transverse plate (25) close to the limiting groove (28) is fixedly connected to a limiting plate (27); and the limiting plate (27) is slidably connected to the limiting groove (28).

3. The closed forging device for metal shaft parts according to claim 1, characterized in that: The four corners of the top surface of the base (5) are fixedly connected to hydraulic cylinders (11), the top of the hydraulic cylinder (11) is fixedly connected to a top plate, the left side of the bottom surface of the top plate is fixedly connected to the top of a connecting column one (1), the right side of the bottom surface of the top plate is fixedly connected to a connecting column two (2), and the center of the bottom surface of the connecting column one (1) is fixedly connected to an upper mold column (3).

4. The closed forging device for metal shaft parts according to claim 1, characterized in that: A discharge port (19) is provided on the rear side of the top surface of the base (5); a discharge pipe (8) corresponding to the discharge port (19) is fixedly connected to the rear side of the bottom surface of the base (5); support legs (9) are fixedly connected to the four corners of the bottom surface of the base (5); and a rubber pad (6) is fixedly connected to the bottom of the support leg (9).

5. The closed forging device for metal shaft parts according to claim 1, characterized in that: A motor 1 (16) is arranged at the center of the bottom surface of the base (5); the output end of the motor 1 (16) is fixedly connected to a rotating column (20); the top of the rotating column (20) passes through the base (5) and is fixedly connected to the bottom of the turntable (15); the front side of the motor 1 (16) is fixedly connected to a mounting plate (7); the top of the mounting plate (7) is fixedly connected to the bottom of the base (5).

6. The closed forging device for metal shaft parts according to claim 3, characterized in that: A storage groove is provided on the left side of the second connecting column (2), and a second motor (12) is installed in the inner cavity of the storage groove. A rotating rod is fixedly connected to the bottom of the second motor (12), and the bottom of the rotating rod passes through the second connecting column (2) and is fixedly connected to a cleaner (13).

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