Top die mechanism for forging output shaft of speed reducer

Abstract

The utility model relates to the technical field of speed reducer production, in particular to a top die mechanism for forging an output shaft of a speed reducer, which comprises a forging table, a locking buckle, a forging die, a support frame, a cover plate, a limit frame and a top die mechanism, the supporting frame is fixedly arranged at the bottom of the forging table, the cover plate is fixed to the outer side of the supporting frame, the limiting frame is fixedly arranged on the inner side of the cover plate, and the die ejecting mechanism is arranged on the inner side of the bottom of the supporting frame in a clamped mode. An oxide layer generated by forging and pressing is effectively shielded and prevented from making contact with a bottom hydraulic cylinder sealing piece, the oxide layer falling into a hydraulic cylinder working area is reduced, the environment temperature is lowered, the purpose of prolonging the service life of the hydraulic cylinder is achieved, and meanwhile the base for installing the hydraulic cylinder can be conveniently detached and maintained and replaced.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer manufacturing technology, and in particular to a top die mechanism for forging the output shaft of a speed reducer. Background Technology

[0002] A speed reducer is a mechanical device that converts high input speed into low speed and outputs greater torque through the meshing of transmission structures such as gears, worm gears, or planetary gears. Its output shaft blank is mainly produced by hot forging, followed by machining and heat treatment to meet the application requirements.

[0003] During the hot forging process of the reducer output shaft blank, the blank is pressed into the mold by the hydraulic press. The top mold mechanism is required to push the blank out. During the forging process, a high-temperature oxide layer will fall off. After these oxide layers fall off, they are easy to come into contact with the seals of the bottom hydraulic cylinder. In addition, the high temperature of the production environment makes the seals very easy to be damaged. Replacing the cylinder is extremely inconvenient and costly. Utility Model Content

[0004] This utility model addresses the deficiencies in the prior art by providing a top die mechanism for forging the output shaft of a speed reducer.

[0005] This utility model is achieved through the following technical solution:

[0006] A top die mechanism for forging a reducer output shaft includes a forging table, a locking buckle, a forging die, a support frame, a cover plate, a limiting frame, and a top die mechanism. The locking buckle is engaged at the top of the forging table, the forging die is installed with the locking buckle, the support frame is fixedly disposed at the bottom of the forging table, the cover plate is fixed to the outer side of the support frame, the limiting frame is fixedly disposed at the inner side of the cover plate, and the top die mechanism is engaged at the inner bottom of the support frame. The top die mechanism includes a mounting base, a connecting plate, a guide cover, a hydraulic cylinder, an ejector seat, an adapter cap, a handle, and a guide rod. The connecting plate is fixedly disposed at the inner side of the mounting base, the guide cover is installed at the top of the connecting plate, the hydraulic cylinder is fixedly connected to the inner bottom of the mounting base, the ejector seat is engaged at the telescopic end of the hydraulic cylinder, the adapter cap is engaged at the top of the ejector seat, the handle is fixedly disposed at the outer side of the mounting base, and the guide rod is fixedly disposed at the outer side of the mounting base.

[0007] In a preferred embodiment of the present invention, the bottom of the mounting base is provided with a retaining ring, the inner side of the bottom of the support frame is provided with a retaining groove that cooperates with the retaining ring at the bottom of the mounting base, and the inside of the support frame is provided with a mounting groove that cooperates with the mounting base.

[0008] The retaining ring at the bottom of the mounting base is locked inside the support frame to prevent the mounting base from moving up and down, thus achieving a limiting effect.

[0009] In a preferred embodiment of this utility model, the back of the support frame is provided with a guide hole that cooperates with the guide rod, and the inner side of the limiting frame is in contact with the outer side of the mounting base;

[0010] The guide rod ensures the installation position of the mounting base, and the limiting bracket presses the mounting base into the support frame, effectively limiting and fixing the mounting base.

[0011] In a preferred embodiment of this utility model, the guide cover has a conical structure, and the surface of the mounting base and the surface of the support frame are provided with discharge holes that cooperate with it.

[0012] The guide cover effectively shields the falling oxide layer, preventing it from contacting the hydraulic cylinder seals and thus increasing the service life of the hydraulic cylinder.

[0013] In a preferred embodiment of this utility model, the telescopic end of the hydraulic cylinder extends through and to the outer side of the top of the guide cover, the ejector seat is disposed on the top of the guide cover, and the adapter cap is attached to the outer side of the bottom of the forging die.

[0014] In a preferred embodiment of this utility model, the bottom of the adapter cap is provided with a locking block, and the top of the ejector seat is provided with a locking hole that cooperates with it.

[0015] The beneficial effects of this utility model are:

[0016] The top die mechanism for forging the output shaft of the reducer ensures the ejection effect of the forged output shaft while effectively shielding the oxide layer generated by forging, preventing it from contacting the bottom hydraulic cylinder seal, reducing the amount of oxide layer falling into the working area of ​​the hydraulic cylinder, lowering the ambient temperature, and thus improving the service life of the hydraulic cylinder. At the same time, the base for mounting the hydraulic cylinder can be easily disassembled for convenient maintenance and replacement. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the top die mechanism for forging the output shaft of the reducer according to this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the top die mechanism for forging the output shaft of the speed reducer according to this utility model.

[0019] Figure 3 This is a schematic diagram of the top die mechanism for forging the output shaft of the speed reducer according to this utility model.

[0020] In the diagram: 1. Forging table; 2. Locking buckle; 3. Forging die; 4. Support frame; 5. Cover plate; 6. Limiting frame; 7. Ejector mechanism; 71. Mounting seat; 72. Connecting plate; 73. Material guide cover; 74. Hydraulic cylinder; 75. Ejector seat; 76. Adaptive top cap; 77. Handle; 78. Guide rod. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0022] like Figure 1-3 The illustrated top die mechanism for forging a reducer output shaft includes a forging table 1, a locking buckle 2, a forging die 3, a support frame 4, a cover plate 5, a limiting frame 6, and a top die mechanism 7. The locking buckle 2 is secured to the top of the forging table 1, the forging die 3 is installed with the locking buckle 2, the support frame 4 is fixedly installed at the bottom of the forging table 1, the cover plate 5 is fixed to the outer side of the support frame 4, the limiting frame 6 is fixedly installed on the inner side of the cover plate 5, and the top die mechanism 7 is secured to the inner bottom of the support frame 4. The top die mechanism 7 includes a mounting base 71 and a connecting plate. 72, guide cover 73, hydraulic cylinder 74, ejector seat 75, adapter cap 76, handle 77, and guide rod 78. The connecting plate 72 is fixedly installed inside the mounting base 71. The guide cover 73 is installed on the top of the connecting plate 72. The hydraulic cylinder 74 is fixedly connected to the bottom inner side of the mounting base 71. The ejector seat 75 is locked at the telescopic end of the hydraulic cylinder 74. The adapter cap 76 is locked at the top of the ejector seat 75. The handle 77 is fixedly installed on the outside of the mounting base 71. The guide rod 78 is fixedly installed on the outside of the mounting base 71.

[0023] Specifically, the mounting base 71 has a retaining ring at its bottom, the support frame 4 has a retaining groove on its inner bottom side that mates with the retaining ring at the bottom of the mounting base 71, the support frame 4 has an installation groove inside that mates with the mounting base 71, the support frame 4 has a guide hole on its back side that mates with the guide rod 78, the limit frame 6 is in close contact with the outer side of the mounting base 71, the guide cover 73 has a conical structure, the mounting base 71 and the support frame 4 have discharge holes that mate with them, the extension end of the hydraulic cylinder 74 passes through and extends to the outer top of the guide cover 73, the ejector seat 75 is located on the top of the guide cover 73, the adapter cap 76 is locked on the outer bottom of the forging mold 3, the adapter cap 76 has a locking block at its bottom, and the ejector seat 75 has a locking hole at its top.

[0024] In this embodiment, the adapter cap 76 is matched with the forging die 3 and the output shaft forged inside it. Different adapter caps 76 can be selected according to the forging die 3 and are locked onto the top of the ejector seat 75. The locking hole on the top of the ejector seat 75 facilitates the installation of the adapter cap 76. The forging die 3 is installed on the top of the forging table 1 and fixed by the locking buckle 2. After the output shaft is forged, the hydraulic cylinder 74 extends, causing the ejector seat 75 to drive the adapter cap 76 to rise. The pressure is applied to the bottom of the forged output shaft blank, thereby ejecting the output shaft blank. During this process, the forging will cause the oxide layer on the surface of the forging to peel off. The falling oxide layer will be blocked by the guide cover 73 and fall from the discharge hole on the surface of the mounting base 71 and the support frame 4, thereby preventing the oxide layer from entering the installation space of the hydraulic cylinder 74 and preventing it from contacting the seal of the hydraulic cylinder 74, thereby effectively extending the service life of the hydraulic cylinder.

[0025] Furthermore, when the hydraulic cylinder 74 needs maintenance or replacement, the cover plate 5 is removed and pulled out. At this time, the limiting bracket 6 fixed on its inner side will separate from the outer side of the mounting base 71, thereby releasing the limitation on the mounting base 71. The hydraulic cylinder 74 is in a retracted state. At this time, the handle 77 is pulled outward by hand, and the entire mounting base 71 can be taken out from the support frame 4. Then, the guide cover 73 on the top of the connecting plate 72 is removed, and the hydraulic cylinder 74 can be disassembled for easy repair and replacement, and for convenient maintenance work.

[0026] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

[0027] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," "set up," "equipped with," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A top die mechanism for forging the output shaft of a speed reducer, comprising a forging table (1), a locking buckle (2), a forging die (3), a support frame (4), a cover plate (5), a limiting frame (6), and a top die mechanism (7), characterized in that: The locking buckle (2) is engaged at the top of the forging table (1), the forging mold (3) is installed with the locking buckle (2), the support frame (4) is fixedly set at the bottom of the forging table (1), the cover plate (5) is fixed to the outside of the support frame (4), the limiting frame (6) is fixedly set at the inside of the cover plate (5), and the top mold mechanism (7) is engaged at the bottom inside of the support frame (4). The top mold mechanism (7) includes a mounting base (71), a connecting plate (72), a guide cover (73), a hydraulic cylinder (74), an ejector seat (75), an adapter cap (76), a handle (77), and a guide rod (78). The connecting plate (72) is fixedly installed inside the mounting base (71), the guide cover (73) is installed on the top of the connecting plate (72), the hydraulic cylinder (74) is fixedly connected to the bottom inner side of the mounting base (71), the ejector seat (75) is locked at the telescopic end of the hydraulic cylinder (74), the adapter cap (76) is locked at the top of the ejector seat (75), the handle (77) is fixedly installed outside the mounting base (71), and the guide rod (78) is fixedly installed outside the mounting base (71).

2. The top die mechanism for forging the output shaft of the reducer according to claim 1, characterized in that: The mounting base (71) is provided with a retaining ring at the bottom, and the support frame (4) has a retaining groove on the inner side of the bottom that cooperates with the retaining ring at the bottom of the mounting base (71), and the support frame (4) has an installation groove inside that cooperates with the mounting base (71).

3. The top die mechanism for forging the output shaft of the reducer according to claim 1, characterized in that: The support frame (4) has a guide hole on its back that cooperates with the guide rod (78), and the inner side of the limiting frame (6) is in contact with the outer side of the mounting base (71).

4. The top die mechanism for forging the output shaft of the reducer according to claim 1, characterized in that: The guide cover (73) has a conical structure, and the surface of the mounting base (71) and the support frame (4) are provided with discharge holes that match it.

5. The top die mechanism for forging the output shaft of the reducer according to claim 1, characterized in that: The telescopic end of the hydraulic cylinder (74) extends through and to the outer side of the top of the guide cover (73), the ejector seat (75) is set on the top of the guide cover (73), and the adapter cap (76) is stuck on the outer side of the bottom of the forging mold (3).

6. The top die mechanism for forging the output shaft of the reducer according to claim 1, characterized in that: The adapter cap (76) has a locking block at the bottom, and the ejector seat (75) has a locking hole at the top that matches it.

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