An efficient forging machine for a toothed electric drive shaft

Abstract

An efficient forging machine for a toothed electric drive shaft, belonging to the field of forging technology. To solve the problem that the high-temperature blank will form local high temperature, resulting in overburn on the surface of the forging, and the cooling water will flow to the forging through the surface of the mold, which will cause large temperature changes of the forging during the roll forging process and affect the product performance. In the present invention, when the roll forging die rotates, the corresponding pressing plates contact each other, causing the sliding rod to slide inside the sliding groove, and the sealing slide plate slides inward inside the sliding cavity. The water inside the sliding cavity enters the cooling cavity through the one-way valve behind the liquid pump tank to cool the roll forging die. When the two corresponding pressing plates gradually move away, at this time, the sealing slide plate slides outward inside the sliding cavity and extracts the cooling water inside the liquid storage tank, realizing the water circulation heat dissipation during the roll forging process, and the water does not directly contact the outside of the roll forging die and the blank, improving the product performance.

Description

Technical Field

[0001] The present invention relates to the technical field of forging, and particularly relates to an efficient forging machine for a toothed electric drive shaft. Background Art

[0002] Forging is a processing method that uses forging machinery to apply pressure to a metal blank, causing it to undergo plastic deformation to obtain forgings with certain mechanical properties, certain shapes, and dimensions.

[0003] Existing toothed electric drive shafts are applied to the bearing part of new energy vehicles. By connecting a flange and a gear shaft, the original flange and gear shaft are combined into one. Direct vertical forging of the blank is likely to cause instability and bending. Using a roll forging process to complete the blank making can effectively reduce the difficulty of forging and forming. However, during the roll forging process, the high-temperature blank will form local high temperatures, resulting in overburning on the surface of the forging, seriously affecting the product quality. Generally, heat dissipation is carried out by air cooling or water cooling. Compared with air cooling, the effect of water cooling is better. However, since the cooling water will flow from the surface of the mold to the forging, the temperature of the forging will change greatly during the roll forging process, affecting the product performance.

[0004] To solve the above problems, an efficient forging machine for a toothed electric drive shaft is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide an efficient forging machine for a toothed electric drive shaft, which solves the problems in the background art that the high-temperature blank will form local high temperatures, resulting in overburning on the surface of the forging, and the cooling water will flow from the surface of the mold to the forging, causing the temperature of the forging to change greatly during the roll forging process and affecting the product performance.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An efficient forging machine for a toothed electric drive shaft includes a forging assembly, a liquid pumping assembly, a one-way conduction assembly, a liquid inlet assembly, a liquid discharge assembly, and a driving assembly. The forging assembly includes a workbench and support columns arranged front and back on the top of the workbench. A rotating shaft is rotatably connected between the two groups of support columns, and there are two groups of rotating shafts. Two groups of roll forging dies are fixedly connected to the two groups of rotating shafts. The roll forging dies are fan-shaped, and the outer surfaces of the two groups of roll forging dies are in contact with each other;

[0007] The inside of the roll forging die is provided with a cooling cavity. The inside of the roll forging die is evenly distributed with installation grooves, sliding grooves and fitting grooves from the inside to the outside in sequence. The liquid pumping assembly includes a liquid pumping tank arranged in the installation groove. A sliding cavity is arranged on the outer side of the liquid pumping tank. A sealing slide plate is slidably connected in the sliding cavity. A sliding rod is fixedly connected to the outer side of the sealing slide plate, and the sliding rod extends outwards to the outside of the roll forging die and is fixedly connected with a pressing plate. The pressing plates on the outside of the two groups of roll forging dies are correspondingly distributed. A first fixing piece is fixedly connected to the sliding rod. A second fixing piece is fixedly connected to the inside of the sliding groove, and the sliding rod is slidably connected with the second fixing piece. A first spring is sleeved on the outer wall of the sliding rod, and the first spring is located between the first fixing piece and the second fixing piece;

[0008] The one-way conduction assembly includes one-way valves arranged on both sides of the liquid pumping tank inside the roll forging die, and one of the one-way valves is communicated with the liquid pumping tank and the cooling cavity.

[0009] Furthermore, a first die groove and a second die groove are arranged on the side wall of the roll forging die. The first die groove is communicated with the second die groove, and the cross sections of the first die groove and the second die groove are semi-circular.

[0010] Furthermore, the liquid pumping tank includes a valve body connected to the liquid pumping tank through a connecting pipe. A flow cavity and a sealing cavity are arranged inside the valve body, and the valve body penetrates through from front to back. A fixing plate is fixedly connected to the inner wall of the flow cavity. A guiding rod is fixedly connected to one side of the fixing plate. A sealing member is slidably connected to the guiding rod. A groove is arranged on one side of the sealing member located on the fixing plate.

[0011] Furthermore, a groove is arranged on one side of the sealing member located on the fixing plate, and a second spring is arranged between the fixing plate and the sealing member.

[0012] Furthermore, the liquid inlet assembly includes a liquid storage tank arranged on the top of the workbench. Cooling water is contained inside the liquid storage tank. An inlet cavity is arranged at one end of the rotating shaft, and the inlet cavity is connected to one of the one-way valves through a communicating pipe.

[0013] Furthermore, the liquid inlet assembly further includes a sealing shell arranged at one end of the rotating shaft. A sealing bearing is installed between the sealing shell and the rotating shaft. An inlet pipe is arranged between the two sealing shells and the liquid storage tank.

[0014] Furthermore, the liquid discharge assembly includes a liquid discharge pipe arranged on the outer wall of the roll forging die, and the liquid discharge pipe is communicated with the inside of the cooling cavity. A liquid discharge port penetrating transversely is arranged on the liquid discharge pipe. A U-shaped plate is fixedly connected to the outer wall of the roll forging die on the outer side of the liquid discharge pipe. A sealing block is slidably connected to the inner side of the U-shaped plate through a sliding rod, and the sealing block is slidably connected inside the liquid discharge pipe. A third spring is sleeved on the outside of the sliding rod, and the third spring is located between the U-shaped plate and the sealing block.

[0015] Further, the driving assembly includes a reduction motor installed below the workbench. The output end of the reduction motor penetrates through the workbench and is connected to a driving rod. An end face gear is fixedly connected to the driving rod. The driving assembly further includes a helical gear fixedly connected to the other end of the rotating shaft, and the helical gear is meshed and connected with the end face gear.

[0016] Another technical solution proposed by the present invention: Provide a forging process for a toothed electric drive shaft, including the following steps:

[0017] S1: Rotary forging: Heat a blank with a diameter of φ65x252 and a upsetting ratio of 3.8 to 1150 - 1200 °C, and use a 1000T electric screw press for vertical forging to complete blank making by the rotary forging process. The elongation rate of rotary forging is 1.89, and the number of rotary forging passes is 2 passes;

[0018] S2: Pre-forging: The pre-forging adopts an extrusion cylinder structure, uses the reduced diameter end of the rotary forging for positioning, completes the forming of the flange and the bowl mouth, cancels the toothed structure, deepens the depth of the bowl mouth, reduces the volume ratio of the pre-final forging at the bowl mouth position, and adopts a large fillet design at the bottom of the bowl mouth;

[0019] S3: Final forging: Adopt an NC machining die. The toothed part of the die and the die cavity adopt a split structure. The toothed part is processed by NC machining, and the deeper part of the cavity is processed by a numerically controlled lathe.

[0020] In S1, the rotary forging process includes the following steps:

[0021] S11: Make the rotary forging die and the rotating shaft rotate through the driving assembly. During the rotation of the rotary forging die, the blank is formed by rotary forging between the two groups of rotary forging dies;

[0022] S12: During the rotary forging process, two groups of corresponding pump liquid assemblies cooperate with the one-way conduction assembly to transport the cooling water inside the liquid storage tank into the cooling cavity inside the rotary forging die to cool the rotary forging die. The water after cooling is discharged through the driving assembly.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] An efficient forging machine for a toothed electric drive shaft provided by the present invention. During the rotary forging process, when the rotary forging die rotates, the corresponding extrusion plates come into contact with each other, causing the sliding rod to slide inside the sliding groove, and the sealing slide plate slides inward inside the sliding cavity. The water inside the sliding cavity enters the cooling cavity through the one-way valve behind the liquid pump tank to cool the rotary forging die. When the water enters the cooling cavity, the excess water is discharged through the liquid outlet pipe and the liquid outlet. When the two corresponding extrusion plates gradually move away from each other, under the reaction force of the first spring, the sliding rod slides outward and resets. At this time, the sealing slide plate slides outward inside the sliding cavity, and draws the cooling water inside the liquid storage tank through the one-way valve in front of the liquid pump tank, the communication pipe, the water inlet cavity, the sealing shell and the liquid inlet pipe, realizing the water circulation heat dissipation during the rotary forging process, and the water does not directly contact the outside of the rotary forging die and the blank, improving the product performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a schematic diagram of the forging assembly structure of the present invention;

[0027] Figure 3 is an exploded view of the forging assembly structure of the present invention;

[0028] Figure 4 is a sectional view of the rotary forging die structure of the present invention;

[0029] Figure 5 is a schematic diagram of the liquid discharge assembly and the drive assembly structure of the present invention;

[0030] Figure 6 is a schematic diagram of the liquid pump assembly, the one-way conduction assembly and the liquid discharge assembly structure of the present invention;

[0031] Figure 7 is a schematic diagram of the liquid pump assembly and the one-way conduction assembly structure of the present invention;

[0032] Figure 8 is an exploded view of the liquid pump assembly structure of the present invention;

[0033] Figure 9 is a sectional view of the one-way conduction assembly structure of the present invention;

[0034] Figure 10 is a schematic diagram of the liquid inlet assembly structure of the present invention;

[0035] Figure 11 is a schematic diagram of the rotating shaft, the sealing shell and the sealing bearing structure of the present invention;

[0036] Figure 12 is a schematic diagram of the liquid discharge assembly structure of the present invention;

[0037] Figure 13 Schematic structural diagram of the driving component of the present invention;

[0038] Figure 14 Schematic structural diagram of the roll forging part of the present invention;

[0039] Figure 15 Schematic structural diagram of the pre-forging part of the present invention;

[0040] Figure 16 Schematic structural diagram of the final forging part of the present invention.

[0041] In the figure: 1. Forging component; 11. Workbench; 12. Support column; 13. Rotating shaft; 131. Water inlet cavity; 14. Roll forging die; 141. First die cavity; 142. Second die cavity; 143. Cooling cavity; 144. Fitting groove; 145. Sliding groove; 146. Installation groove; 2. Liquid pumping component; 21. Liquid pumping tank; 22. Sliding cavity; 23. Sealing slide plate; 24. Sliding rod; 25. First fixing piece; 26. Second fixing piece; 27. First spring; 28. Extrusion plate; 3. One-way conduction component; 31. One-way valve; 311. Valve body; 312. Flow cavity; 313. Sealing cavity; 314. Fixing plate; 315. Guide rod; 316. Sealing member; 317. Groove; 318. Second spring; 32. Connecting pipe; 4. Liquid inlet component; 41. Liquid storage tank; 42. Liquid inlet pipe; 43. Sealing shell; 44. Sealing bearing; 5. Liquid discharge component; 51. Liquid discharge pipe; 52. Liquid discharge port; 53. U-shaped plate; 54. Slide rod; 55. Sealing block; 56. Third spring; 6. Driving component; 61. Reduction motor; 62. Driving rod; 63. End face gear; 64. Helical gear. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] In order to solve the technical problem that the high-temperature blank will form high temperature locally, resulting in overburn on the surface of the forging, and the cooling water will flow to the forging through the surface of the die, which will cause large temperature changes in the forging during the roll forging process and affect the product performance, as Figures 1-13 shown, the following preferred technical solutions are provided:

[0044] An efficient forging machine for a toothed electric drive shaft, comprising a forging assembly 1, a liquid pumping assembly 2, a one-way conduction assembly 3, a liquid inlet assembly 4, a liquid discharge assembly 5 and a drive assembly 6. The forging assembly 1 includes a workbench 11 and support columns 12 arranged at the front and rear of the top of the workbench 11. A rotating shaft 13 is rotatably connected between the two groups of support columns 12, and there are two groups of rotating shafts 13. A roll forging die 14 is fixedly connected to the two groups of rotating shafts 13. The roll forging die 14 is fan-shaped, and the outer surfaces of the two groups of roll forging dies 14 are in contact with each other;

[0045] A cooling cavity 143 is arranged inside the roll forging die 14. Installation grooves 146, sliding grooves 145 and fitting grooves 144 are evenly distributed inside the roll forging die 14 from the inside to the outside in sequence. The liquid pumping assembly 2 includes a liquid pumping tank 21 arranged in the installation groove 146. A sliding cavity 22 is arranged on the outer side of the liquid pumping tank 21. A sealing slide plate 23 is slidably connected inside the sliding cavity 22. A sliding rod 24 is fixedly connected to the outer side of the sealing slide plate 23, and the sliding rod 24 extends outward to the outside of the roll forging die 14 and is fixedly connected to an extrusion plate 28. The extrusion plates 28 outside the two groups of roll forging dies 14 are correspondingly distributed. A first fixing piece 25 is fixedly connected to the sliding rod 24. A second fixing piece 26 is fixedly connected inside the sliding groove 145, and the sliding rod 24 is slidably connected to the second fixing piece 26. A first spring 27 is sleeved on the outer wall of the sliding rod 24, and the first spring 27 is located between the first fixing piece 25 and the second fixing piece 26;

[0046] When the two groups of rotating shafts 13 drive the roll forging die 14 to rotate, the two corresponding extrusion plates 28 outside the roll forging die 14 are correspondingly extruded against each other, so that the sliding rod 24 slides inside the sliding groove 145, and the sealing slide plate 23 slides inside the sliding cavity 22. Subsequently, under the reaction of the first spring 27, the sealing slide plate 23 slides outward inside the sliding cavity 22;

[0047] The one-way conduction assembly 3 includes one-way valves 31 arranged on both sides of the liquid pumping tank 21 inside the roll forging die 14, and one of the one-way valves 31 is communicated with the liquid pumping tank 21 and the cooling cavity 143.

[0048] A first die groove 141 and a second die groove 142 are arranged on the side wall of the roll forging die 14. The first die groove 141 is communicated with the second die groove 142, and the cross sections of the first die groove 141 and the second die groove 142 are semi-circular.

[0049] The pump liquid tank 21 includes a valve body 311 connected to the pump liquid tank 21 through a connecting pipe. Inside the valve body 311, there are a flow cavity 312 and a sealing cavity 313, and the valve body 311 penetrates through from front to back. A fixing plate 314 is fixedly connected to the inner wall of the flow cavity 312. On one side of the fixing plate 314, a guiding rod 315 is fixedly connected. A sealing member 316 is slidably connected to the guiding rod 315. On one side of the fixing plate 314 where the sealing member 316 is located, there is a groove 317.

[0050] On one side of the fixing plate 314 where the sealing member 316 is located, there is a groove 317. A second spring 318 is arranged between the fixing plate 314 and the sealing member 316.

[0051] The liquid inlet assembly 4 includes a liquid storage tank 41 arranged on the top of the workbench 11. Cooling water is contained inside the liquid storage tank 41. One end of the rotating shaft 13 is provided with a water inlet cavity 131, and the water inlet cavity 131 is connected to one group of check valves 31 through a connecting pipe 32.

[0052] The liquid inlet assembly 4 further includes a sealing shell 43 arranged at one end of the rotating shaft 13. A sealing bearing 44 is installed between the sealing shell 43 and the rotating shaft 13. A liquid inlet pipe 42 is arranged between the two groups of sealing shells 43 and the liquid storage tank 41;

[0053] When the sealing slide plate 23 slides outward inside the sliding cavity 22, the cooling water inside the liquid storage tank 41 passes through the liquid inlet pipe 42, the sealing shell 43, the first mold groove 141 and the liquid inlet pipe 42, passes through one group of check valves 31 and enters the inside of the connecting pipe 32. When the sealing slide plate 23 moves inward inside the sliding cavity 22, the water inside the sliding cavity 22 enters the inside of the cooling cavity 143 through the other group of check valves 31.

[0054] The liquid discharge assembly 5 includes a liquid outlet pipe 51 arranged on the outer wall of the roll forging die 14, and the liquid outlet pipe 51 is communicated with the inside of the cooling cavity 143. The liquid outlet pipe 51 is provided with a laterally penetrating liquid outlet 52. On the outer wall of the roll forging die 14, outside the liquid outlet pipe 51, a U-shaped plate 53 is fixedly connected. Inside the U-shaped plate 53, a sealing block 55 is slidably connected through a slide bar 54, and the sealing block 55 is slidably connected inside the liquid outlet pipe 51. A third spring 56 is sleeved outside the slide bar 54, and the third spring 56 is located between the U-shaped plate 53 and the sealing block 55. When the cooling water enters the inside of the cooling cavity 143, the pressure inside the cooling cavity 143 increases, and the water inside it makes the sealing block 55 slide inside the liquid outlet pipe 51 until the water flows out from the liquid outlet 52, facilitating the subsequent water to be transported into the inside of the cooling cavity 143.

[0055] The driving component 6 includes a reduction motor 61 installed below the workbench 11. The output end of the reduction motor 61 penetrates through the workbench 11 and is connected with a driving rod 62. A face gear 63 is fixedly connected to the driving rod 62. The driving component 6 further includes a helical gear 64 fixedly connected to the other end of the rotating shaft 13, and the helical gear 64 is meshed and connected with the face gear 63.

[0056] Specifically, place the billet formed by vertical forging at the second die cavity 142 between the two sets of roll forging dies 14, and then start the reduction motor 61. The reduction motor 61 drives the rotating shaft 13 and the roll forging dies 14 to rotate through the driving rod 62, the face gear 63 and the helical gear 64. When the roll forging dies 14 rotate, the billet is formed through the second die cavity 142 and the first die cavity 141. During the roll forging process, when the roll forging dies 14 rotate, the corresponding pressing plates 28 contact each other, causing the sliding rod 24 to slide inside the sliding groove 145, so that the sealing slide plate 23 slides inward inside the sliding cavity 22. The water inside the sliding cavity 22 enters the cooling cavity 143 through the one-way valve 31 behind the liquid pumping tank 21 to cool the roll forging dies 14. When the water enters the cooling cavity 143, the excess water is discharged through the liquid outlet pipe 51 and the liquid outlet 52. When the two corresponding pressing plates 28 gradually move away from each other, under the reaction force of the first spring 27, the sliding rod 24 slides outward and resets. At this time, the sealing slide plate 23 slides outward inside the sliding cavity 22, and draws the cooling water inside the liquid storage tank 41 through the one-way valve 31 in front of the liquid pumping tank 21, the connecting pipe 32, the water inlet cavity 131, the sealing shell 43 and the liquid inlet pipe 42, realizing the water circulation heat dissipation during the roll forging process, and the water does not directly contact the outside of the roll forging dies 14 and the billet.

[0057] To further better explain and illustrate the above embodiments, the present invention also provides an implementation scheme, a forging process of a toothed electric drive shaft, including the following steps:

[0058] Step 1: Roll forging (the workpiece after roll forging is as Figure 14 shown): Heat the blank with a diameter of φ65x252 and a upsetting ratio of 3.8 to 1150 - 1200 °C, use a 1000T electric screw press for vertical forging to form the blank, and complete the blank making by roll forging process. The roll forging elongation rate is 1.89, and the roll forging pass is 2 passes;

[0059] Step 2: Pre-forging (the workpiece after pre-forging is as Figure 15 shown): The pre-forging adopts an extrusion barrel structure, uses the roll forging reduced diameter end for positioning, completes the forming of the flange and the bowl mouth, cancels the toothed structure, deepens the depth of the bowl mouth, reduces the pre-final forging volume ratio at the bowl mouth position, and adopts a large fillet design at the bottom of the bowl mouth;

[0060] Step 3: Final forging (the workpiece after final forging is as Figure 16As shown in the figure): The NC machining die is adopted. The toothed part of the die and the die cavity adopt a split structure. The toothed part is machined by NC, and the deeper part of the cavity is machined by a numerical control lathe.

[0061] In S1, the rotary forging process includes the following steps:

[0062] S11: The driving assembly 6 is used to make the rotary forging die 14 and the rotating shaft 13 rotate. During the rotation of the rotary forging die 14, the blank is formed by rotary forging between the two groups of rotary forging dies 14.

[0063] S12: During the rotary forging process, the two groups of corresponding liquid pumping assemblies 2 cooperate with the one-way conduction assemblies 3 to convey the cooling water in the liquid storage tank 41 into the cooling cavity 143 inside the rotary forging die 14 to cool the rotary forging die 14, and the cooled water is discharged through the driving assembly 6.

[0064] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0065] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An efficient forging machine for a toothed electric drive shaft, comprising a forging assembly (1), a liquid pumping assembly (2), a one-way conduction assembly (3), a liquid inlet assembly (4), a liquid discharge assembly (5) and a drive assembly (6). It is characterized in that: The forging assembly (1) includes a workbench (11) and support columns (12) arranged at the front and back of the top of the workbench (11). A rotating shaft (13) is rotatably connected between the two groups of support columns (12), and there are two groups of the rotating shafts (13). A roll forging die (14) is fixedly connected to the two groups of the rotating shafts (13). The roll forging die (14) is fan-shaped, and the outer surfaces of the two groups of the roll forging dies (14) are in contact with each other; A cooling cavity (143) is arranged inside the roll forging die (14). Installation grooves (146), sliding grooves (145) and fitting grooves (144) are evenly distributed inside the roll forging die (14) from inside to outside in sequence. The liquid pumping assembly (2) includes a liquid pumping tank (21) arranged in the installation groove (146). A sliding cavity (22) is arranged on the outer side of the liquid pumping tank (21). A sealing slide plate (23) is slidably connected inside the sliding cavity (22). A sliding rod (24) is fixedly connected to the outer side of the sealing slide plate (23), and the sliding rod (24) extends outwards to the outside of the roll forging die (14) and is fixedly connected to an extrusion plate (28). The extrusion plates (28) outside the two groups of roll forging dies (14) are correspondingly distributed. A first fixing piece (25) is fixedly connected to the sliding rod (24). A second fixing piece (26) is fixedly connected inside the sliding groove (145), and the sliding rod (24) is slidably connected to the second fixing piece (26). A first spring (27) is sleeved on the outer wall of the sliding rod (24), and the first spring (27) is located between the first fixing piece (25) and the second fixing piece (26); The one-way conduction assembly (3) includes one-way valves (31) arranged on both sides of the liquid pumping tank (21) inside the roll forging die (14), and one of the one-way valves (31) is communicated with the liquid pumping tank (21) and the cooling cavity (143); A first die groove (141) and a second die groove (142) are arranged on the side wall of the roll forging die (14). The first die groove (141) is communicated with the second die groove (142), and the cross-sections of the first die groove (141) and the second die groove (142) are semi-circular.

2. An efficient forging machine for a toothed electric drive shaft as described in claim 1, It is characterized in that: The liquid pumping tank (21) includes a valve body (311) connected to the liquid pumping tank (21) through a connecting pipe. A flow cavity (312) and a sealing cavity (313) are arranged inside the valve body (311), and the valve body (311) penetrates through from front to back. A fixing plate (314) is fixedly connected to the inner wall of the flow cavity (312). A guide rod (315) is fixedly connected to one side of the fixing plate (314). A sealing member (316) is slidably connected to the guide rod (315). A groove (317) is arranged on one side of the sealing member (316) located on the fixing plate (314).

3. An efficient forging machine for a toothed electric drive shaft as described in claim 2, It is characterized in that: The seal (316) is provided with a groove (317) on one side of the fixed plate (314), and a second spring (318) is arranged between the fixed plate (314) and the seal (316).

4. An efficient forging machine for a toothed electric drive shaft according to claim 3, characterized in that: The liquid inlet assembly (4) includes a liquid storage tank (41) arranged on the top of the workbench (11). The inside of the liquid storage tank (41) is filled with cooling water. One end of the rotating shaft (13) is provided with a water inlet cavity (131), and the water inlet cavity (131) is connected to one group of the check valves (31) through a connecting pipe (32).

5. An efficient forging machine for a toothed electric drive shaft according to claim 4, characterized in that: The liquid inlet assembly (4) further includes a seal housing (43) arranged at one end of the rotating shaft (13). A seal bearing (44) is installed between the seal housing (43) and the rotating shaft (13). Liquid inlet pipes (42) are arranged between the two seal housings (43) and the liquid storage tank (41).

6. An efficient forging machine for a toothed electric drive shaft according to claim 5, characterized in that: The liquid discharge assembly (5) includes a liquid discharge pipe (51) arranged on the outer wall of the roll forging die (14), and the liquid discharge pipe (51) is communicated with the inside of the cooling cavity (143). The liquid discharge pipe (51) is provided with a laterally penetrating liquid discharge port (52). A U-shaped plate (53) is fixedly connected to the outer wall of the roll forging die (14) on the outer side of the liquid discharge pipe (51). A seal block (55) is slidably connected to the inner side of the U-shaped plate (53) through a slide bar (54), and the seal block (55) is slidably connected to the inside of the liquid discharge pipe (51). A third spring (56) is sleeved on the outside of the slide bar (54), and the third spring (56) is located between the U-shaped plate (53) and the seal block (55).

7. An efficient forging machine for a toothed electric drive shaft according to claim 6, characterized in that: The drive assembly (6) includes a reduction motor (61) installed below the workbench (11). The output end of the reduction motor (61) penetrates through the workbench (11) and is connected to a drive rod (62). A face gear (63) is fixedly connected to the drive rod (62). The drive assembly (6) further includes a helical gear (64) fixedly connected to the other end of the rotating shaft (13), and the helical gear (64) is meshed with the face gear (63).

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