Automobile transmission shaft spline forging die

Abstract

The invention belongs to the technical field of forming dies, and particularly relates to an automobile transmission shaft spline forging die which comprises a base, a forging table, a die cylinder, a heat resistance type forging mechanism and a fog measuring type cooling mechanism, the base is arranged on the bottom wall of the forging table, the die cylinder is arranged at the end, away from the base, of the forging table, the heat resistance type forging mechanism is arranged on the forging table, and the fog measuring type cooling mechanism is arranged on the die cylinder. The fog measuring type cooling mechanism is arranged on the base, and the heat resisting type forging mechanism comprises a driving assembly, a liquid separation assembly, a liquid supply assembly and a groove pressing assembly. According to the spline forging die for the automobile transmission shaft, a forge piece can be automatically steered, so that multiple sets of splines can be forged on the surface of the forge piece, heat generated in the forge piece can be isolated, and then the stability of a driving structure is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of forming molds, and specifically refers to a spline forging mold for an automotive drive shaft. Background Art

[0002] As a type of mechanical transmission, the spline shaft has a longitudinal keyway on the outer surface of the shaft, and the rotating part sleeved on the shaft also has a corresponding keyway, which can keep synchronous rotation with the shaft. While the spline shaft is rotating, it can also slide longitudinally on the shaft, and can be applied to the automotive power drive shaft system and steering mechanism, etc.

[0003] Currently, the existing spline forging molds for automotive drive shafts have the following problems: 1. The existing spline forging molds for automotive drive shafts are not convenient for automatically turning the forging, so that multiple groups of splines cannot be forged on the surface of the forging; 2. When the traditional spline forging mold for automotive drive shafts uses a motor to drive the forging, it cannot isolate the heat generated by the forging. During the forging process of the forging, the temperature of the forging is relatively high, and the heat inside the forging is easily introduced into the motor along the drive shaft, thereby damaging the motor.

[0004] Therefore, it cannot meet the current usage requirements for spline forging molds for automotive drive shafts. Summary of the Invention

[0005] In view of the above situation, to overcome the defects of the prior art, the present solution provides a spline forging mold for an automotive drive shaft that can automatically turn the forging, enabling multiple groups of splines to be forged on the surface of the forging, and can isolate the heat generated inside the forging, thereby ensuring the stability of the drive structure.

[0006] The technical solution adopted in this solution is as follows: A spline forging mold for an automotive drive shaft proposed in this solution includes a base, a forging table, a mold cylinder, a heat-insulating forging mechanism, and a fog-measuring cooling mechanism. The base is provided on the bottom wall of the forging table, the mold cylinder is provided at one end of the forging table away from the base, the heat-insulating forging mechanism is provided on the forging table, the fog-measuring cooling mechanism is provided on the base. The heat-insulating forging mechanism includes a driving component, a liquid isolation component, a liquid supply component, and a groove pressing component. The driving component is provided at both ends of the forging table, the liquid isolation component is provided on the side wall of the driving component, the liquid supply component is provided on one side of the mold cylinder, the groove pressing component is provided at one end of the mold cylinder away from the liquid supply component. The fog-measuring cooling mechanism includes a fog exhaust component, a distillation collection component, and a temperature reduction component. The fog exhaust component is provided on the upper wall of the liquid isolation component, the distillation collection component is provided between the bases, and the temperature reduction component is provided on the side wall of the distillation collection component.

[0007] As a further optimization of the solution of this case, the driving assembly includes a hinge seat, a driving motor, a locking threaded hole and a locking bolt. The hinge seats are symmetrically arranged at both ends of the forging table, and the hinge seats are hinged to the forging table. The locking threaded hole is arranged on the side of the hinge seat close to the forging table. The locking bolt is arranged through the inner wall of the forging table, and the end of the locking bolt away from the forging table is arranged inside the locking threaded hole. The locking bolt is threadedly connected to the locking threaded hole. The driving motor is arranged on the side of the hinge seat away from the forging table, and the power end of the driving motor is connected to the driving shaft. The liquid isolation assembly includes a driving shaft, a barrier cylinder, a guide post, a clamping sleeve, a clamping bolt and a clamping spring. The driving shaft is arranged through the inner wall of the hinge seat. The barrier cylinder is arranged on the side of the driving shaft away from the hinge seat. A plurality of groups of the guide posts are arranged on the side of the barrier cylinder away from the driving shaft. The clamping sleeve is slidably arranged between the guide posts. The clamping bolt is arranged through the inner wall of the bottom wall of the clamping sleeve. The clamping spring is arranged between the clamping sleeve and the barrier cylinder. The liquid supply assembly includes a water storage cylinder, a liquid supply pump, an outer sleeve, a liquid supply hose and a first thermoelectric cooler group. The water storage cylinders are symmetrically arranged on the side wall of the mold cylinder. The liquid supply pump is arranged on the side of the water storage cylinder away from the mold cylinder. The water pumping end of the liquid supply pump is arranged through the inside of the water storage cylinder. The outer sleeve is rotatably arranged outside the barrier cylinder, and the bottom of the outer sleeve is connected to the bottom wall of the hinge seat. The barrier cylinder is communicated with the outer sleeve through the through hole on its surface. The liquid supply hose is communicated between the outer sleeve and the liquid discharge end of the liquid supply pump. The first thermoelectric cooler group is arranged through the bottom wall of the water storage cylinder, and the cooling end of the first thermoelectric cooler group is located inside the water storage cylinder. The groove pressing assembly includes a hydraulic cylinder, a pressing groove, a key groove block, a circular groove, a high-frequency coil and a heating port. The hydraulic cylinders are symmetrically arranged at one end of the forging table away from the water storage cylinder. The pressing grooves are symmetrically arranged on the side of the mold cylinder close to the hydraulic cylinder. The pressing grooves are through settings. The key groove block is arranged at the power end of the hydraulic cylinder, and the end of the key groove block away from the hydraulic cylinder slides inside the pressing groove. The circular groove is arranged at the middle side wall position of the mold cylinder. The high-frequency coil is arranged inside the circular groove. A plurality of groups of the heating ports are arranged on the inner wall of the circular groove.

[0008] During use, the first thermoelectric cooling fin group cools the water inside the water storage cylinder through the cooling end. The liquid supply pump pumps the water inside the water storage cylinder into the inner sleeve through the liquid extraction end and the liquid supply hose. The inner sleeve transports the water into the barrier cylinder. After the barrier cylinder is filled with cooling water, it can block the heat from the forging, preventing the driving motor from overheating. Rotate the locking bolt, and the locking bolt is screwed out from the locking threaded hole. The hinge seat changes from the fixed state to the movable state. Rotate the hinge seat, and the hinge seat drives the clamping sleeve away from both sides of the die cylinder. Place the forging of the automotive drive shaft to be forged on the inner wall of the die cylinder. The outer diameter of the forging is the same as the inner diameter of the die cylinder. Then rotate the hinge seat, and the hinge seat rotates around the forging table to drive the clamping sleeve closer to the die cylinder. Utilize the deformation of the clamping spring to push the clamping sleeve. The clamping sleeve slides along the guiding column closer to the barrier cylinder. At this time, the distance between the opposite clamping sleeves is the maximum value. Release the clamping sleeve, and the clamping spring rebounds and resets to drive the clamping sleeve to sleeve on the outside of the forging. Rotate the clamping bolt, and the clamping bolt is screwed into the clamping sleeve to fix the forging. The high-frequency coil heats the forging. After the temperature of the forging rises, it is convenient for shaping. The power end of the hydraulic cylinder extends to drive the keyway block to slide along the pressing groove. As the power end of the hydraulic cylinder continues to extend, the keyway block presses the surface of the heated forging to form a groove. After the temperature of the forging rises, the barrier cylinder is heated through the clamping sleeve. The cooling water inside the barrier cylinder quickly evaporates and absorbs heat after being heated by the forging, thereby blocking the heat conduction path between the forging and the driving motor.

[0009] Preferably, the mist exhaust assembly includes a mist exhaust cylinder and a mist exhaust floating ball. The mist exhaust cylinder is communicatively arranged on the upper wall of the inner sleeve. The mist exhaust floating ball is arranged on the inner wall of the mist exhaust cylinder, and the outer diameter of the mist exhaust floating ball is larger than the inner diameter of the communication pipe between the mist exhaust cylinder and the inner sleeve. The distillation assembly includes a distillation box, a distillation copper pipe, a second thermoelectric cooling fin group, and a mist exhaust hose. The distillation box is arranged between the bases below the forging table. The mist exhaust hose is communicatively arranged on the upper wall of the mist exhaust cylinder. The distillation copper pipe is communicatively arranged between the second thermoelectric cooling fin group and the distillation box. The second thermoelectric cooling fin group is arranged on the side wall of the distillation box, and the cooling end of the second thermoelectric cooling fin group penetrates into the distillation box. The cooling assembly includes a cooling pump, a cooling pipe, a liquid dropping cover, and a liquid dropping pipe. The cooling pump is arranged on the side wall of the distillation box, and the liquid extraction end of the cooling pump penetrates into the distillation box. The cooling pipe is communicatively arranged between the die cylinder and the drainage end of the cooling pump. The liquid dropping cover is arranged on the bottom wall of the die cylinder outside the heating port. The liquid dropping pipe is communicatively arranged between the liquid dropping cover and the distillation box.

[0010] During use, the steam generated inside the barrier cylinder enters the inside of the mist exhaust cylinder through the outer sleeve cylinder. When steam enters the inside of the mist exhaust cylinder, the mist exhaust floating ball is ejected from the connecting part between the mist exhaust cylinder and the outer sleeve cylinder, and the steam enters the inside of the distillation copper tube through the mist exhaust hose. The second thermoelectric cooling sheet group cools the distilled water inside the distillation box through the cooling end, and the distillation box cools the distillation copper tube. When the steam enters the inside of the distillation copper tube, it condenses into distilled water and falls into the inside of the distillation box. An exhaust valve is pre-opened on the upper wall of the distillation box, and the excess gas after condensation is discharged through the exhaust valve. After the forging of the forging is completed, the forging needs to be cooled and then taken out. At this time, the cooling pump extracts the distilled water inside the distillation box through the liquid extraction end, and the distilled water flows into the inside of the mold cylinder through the cooling pipe. The distilled water cools the forging inside the mold cylinder. The driving motor drives the driving shaft to rotate through the power end, and the driving shaft drives the forging to rotate inside the mold cylinder through the barrier cylinder and the clamping sleeve, so that the forging uniformly contacts the distilled water. The excess distilled water falls into the inside of the lower liquid cover through the heating port, and the distilled water inside the lower liquid cover flows back into the distillation box through the lower liquid pipe.

[0011] Specifically, a controller is provided on the upper wall of the forging table.

[0012] Among them, the controller is electrically connected to the driving motor, the hydraulic cylinder, the high-frequency coil, and the cooling pump respectively.

[0013] The beneficial effects obtained by adopting the above structure are as follows: Compared with the prior art, this solution combines a heat-insulating forging mechanism and a fog-measuring cooling mechanism. Under the combined use of the driving component, the liquid isolation component, the liquid supply component, the pressure groove component, the mist exhaust component, the distillation component, and the temperature reduction component, multi-group splines can be forged on the surface of the forging. Using the power end of the driving motor to drive the forging to rotate inside the mold cylinder can make the key groove block contact different areas of the forging, so as to forge the multi-group splines on the forging surface. And under the isolation of the cooling water, it can avoid the heat generated by the heated forging from being conducted into the driving motor, and keep the driving motor running continuously and stably. Without the need for the cooling water to flow back (the temperature of the backflow water is relatively high, which affects the initial temperature of the cooling water inside the water storage cylinder, and thus cannot completely block the heat conducted by the forging), by condensing and recovering the evaporated cooling water, the distillation box is replenished, thereby reducing the waste of cooling water, and thus ensuring the forging efficiency of the multi-group splines on the forging surface to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of this solution; Figure 2 is the main perspective view of this solution; Figure 3 is the bottom perspective view of this solution; Figure 4 Schematic diagram of the combined structure of the base, forging table and die cylinder of this solution; Figure 5 Schematic diagram of the combined structure of the heat-insulating forging mechanism and the fog-measuring cooling mechanism of this solution; Figure 6 Schematic diagram of the structure of the groove pressing assembly of this solution; Figure 7 Schematic diagram of the structure of the die cylinder; Figure 8 Front view of this solution; Figure 9 Left view of this solution; Figure 10 Right view of this solution; Figure 11 Top view of this solution; Figure 12 is Figure 11 Partial sectional view of A-A of; Figure 13 is Figure 11 Partial sectional view of B-B of; Figure 14 is Figure 1 Enlarged structural view of part I of; Figure 15 is Figure 2 Enlarged structural view of part II of; Figure 16 is Figure 3 Enlarged structural view of part III of.

[0015] Among them, 1. Base, 2. Forging table, 3. Die cylinder, 4. Heat-insulating forging mechanism, 5. Driving assembly, 6. Hinge seat, 7. Driving motor, 8. Locking threaded hole, 9. Locking bolt, 10. Liquid separation assembly, 11. Driving shaft, 12. Barrier cylinder, 13. Guide post, 14. Clamping sleeve, 15. Clamping bolt, 16. Liquid supply assembly, 17. Water storage cylinder, 18. Liquid supply pump, 19. Outer sleeve, 20. Liquid supply hose, 21. Thermoelectric cooler group I, 22. Groove pressing assembly, 23. Hydraulic cylinder, 24. Pressing groove, 25. Keyway block, 26. Circular groove, 27. High-frequency coil, 28. Heating port, 29. Fog-measuring cooling mechanism, 30. Exhaust fog assembly, 31. Exhaust fog cylinder, 32. Exhaust fog floating ball, 33. Distillation assembly, 34. Distillation box, 35. Distillation copper pipe, 36. Thermoelectric cooler group II, 37. Temperature reduction assembly, 38. Cooling pump, 39. Temperature reduction pipe, 40. Lower liquid cover, 41. Lower liquid pipe, 42. Controller, 43. Exhaust fog hose, 44. Clamping spring.

[0016] The accompanying drawings are used to provide a further understanding of the present solution and form a part of the description. They are used together with the embodiments of the present solution to explain the present solution and do not constitute a limitation to the present solution. Detailed implementation manners

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present solution with reference to the accompanying drawings in the embodiments of the present solution. Obviously, the described embodiments are only a part of the embodiments of the present solution, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present solution without creative efforts belong to the scope protected by the present solution.

[0018] In the description of the present solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present solution.

[0019] As Figures 1 - 16 shown, a spline forging die for an automotive drive shaft proposed by the present solution includes a base 1, a forging table 2, a die cylinder 3, a heat-insulating forging mechanism 4, and a fog-measuring cooling mechanism 29. The base 1 is provided on the bottom wall of the forging table 2. The die cylinder 3 is provided at one end of the forging table 2 away from the base 1. The heat-insulating forging mechanism 4 is provided on the forging table 2. The fog-measuring cooling mechanism 29 is provided on the base 1. The heat-insulating forging mechanism 4 includes a driving component 5, a liquid isolation component 10, a liquid supply component 16, and a groove pressing component 22. The driving component 5 is provided at both ends of the forging table 2. The liquid isolation component 10 is provided on the side wall of the driving component 5. The liquid supply component 16 is provided on one side of the die cylinder 3. The groove pressing component 22 is provided at one end of the die cylinder 3 away from the liquid supply component 16. The fog-measuring cooling mechanism 29 includes a fog discharging component 30, a distillation collecting component 33, and a temperature reducing component 37. The fog discharging component 30 is provided on the upper wall of the liquid isolation component 10. The distillation collecting component 33 is provided between the bases 1. The temperature reducing component 37 is provided on the side wall of the distillation collecting component 33.

[0020] The driving assembly 5 includes a hinge seat 6, a driving motor 7, a locking threaded hole 8 and a locking bolt 9. The hinge seats 6 are symmetrically arranged at both ends of the forging table 2. The hinge seat 6 is hinged to the forging table 2. The locking threaded hole 8 is arranged on the side of the hinge seat 6 close to the forging table 2. The locking bolt 9 is arranged through the inner wall of the forging table 2. One end of the locking bolt 9 away from the forging table 2 is arranged inside the locking threaded hole 8. The locking bolt 9 is threadedly connected to the locking threaded hole 8. The driving motor 7 is arranged on the side of the hinge seat 6 away from the forging table 2. The liquid isolation assembly 10 includes a driving shaft 11, an isolation cylinder 12, a guide post 13, a clamping sleeve 14, a clamping bolt 15 and a clamping spring 44. The driving shaft 11 is arranged through the inner wall of the hinge seat 6. The power end of the driving motor 7 is connected to the driving shaft 11. The isolation cylinder 12 is arranged on the side of the driving shaft 11 away from the hinge seat 6. A plurality of groups of the guide posts 13 are arranged on the side of the isolation cylinder 12 away from the driving shaft 11. The clamping sleeve 14 is slidably arranged between the guide posts 13. The clamping bolt 15 is arranged through the inner wall of the bottom wall of the clamping sleeve 14. The clamping spring 44 is arranged between the clamping sleeve 14 and the isolation cylinder 12. The liquid supply assembly 16 includes a water storage cylinder 17, a liquid supply pump 18, an outer sleeve 19, a liquid supply hose 20 and a first thermoelectric cooler group 21. The water storage cylinders 17 are symmetrically arranged on the side wall of the die cylinder 3. The liquid supply pump 18 is arranged on the side of the water storage cylinder 17 away from the die cylinder 3. The water pumping end of the liquid supply pump 18 is arranged through the inside of the water storage cylinder 17. The outer sleeve 19 is rotatably arranged outside the isolation cylinder 12. The bottom of the outer sleeve 19 is connected to the bottom wall of the hinge seat 6. The isolation cylinder 12 is communicated with the outer sleeve 19 through the through hole on its surface. The liquid supply hose 20 is communicated and arranged between the outer sleeve 19 and the liquid discharge end of the liquid supply pump 18. The first thermoelectric cooler group 21 is arranged through the bottom wall of the water storage cylinder 17. The cooling end of the first thermoelectric cooler group 21 is located inside the water storage cylinder 17. The groove pressing assembly 22 includes a hydraulic cylinder 23, a pressing groove 24, a key groove block 25, a circular groove 26, a high-frequency coil 27 and a heating port 28. The hydraulic cylinders 23 are symmetrically arranged at the end of the forging table 2 away from the water storage cylinder 17. The pressing grooves 24 are symmetrically arranged on the side of the die cylinder 3 close to the hydraulic cylinder 23. The pressing grooves 24 are arranged in a through manner. The key groove block 25 is arranged at the power end of the hydraulic cylinder 23. One end of the key groove block 25 away from the hydraulic cylinder 23 is slidably arranged inside the pressing groove 24. The circular groove 26 is arranged at the middle side wall position of the die cylinder 3. The high-frequency coil 27 is arranged inside the circular groove 26. A plurality of groups of the heating ports 28 are arranged on the inner wall of the circular groove 26.

[0021] The fog exhaust assembly 30 includes a fog exhaust cylinder 31 and a fog exhaust floating ball 32. The fog exhaust cylinder 31 is communicatively arranged on the upper wall of the outer sleeve 19. The fog exhaust floating ball 32 is arranged on the inner wall of the fog exhaust cylinder 31, and the outer diameter of the fog exhaust floating ball 32 is greater than the inner diameter of the communication pipe between the fog exhaust cylinder 31 and the outer sleeve 19. The distillation and collection assembly 33 includes a distillation box 34, a distillation and collection copper pipe 35, a second thermoelectric cooling sheet group 36, and a fog exhaust hose 43. The distillation box 34 is arranged between the bases 1 under the forging table 2. The fog exhaust hose 43 is communicatively arranged on the upper wall of the fog exhaust cylinder 31. The distillation and collection copper pipe 35 is communicatively arranged between the second thermoelectric cooling sheet group 36 and the distillation box 34. The second thermoelectric cooling sheet group 36 is arranged on the side wall of the distillation box 34, and the cooling end of the second thermoelectric cooling sheet group 36 penetrates into the interior of the distillation box 34. The cooling assembly 37 includes a cooling pump 38, a cooling pipe 39, a lower liquid cover 40, and a lower liquid pipe 41. The cooling pump 38 is arranged on the side wall of the distillation box 34, and the liquid suction end of the cooling pump 38 penetrates into the interior of the distillation box 34. The cooling pipe 39 is communicatively arranged between the die cylinder 3 and the drainage end of the cooling pump 38. The lower liquid cover 40 is arranged on the bottom wall of the die cylinder 3 outside the heating port 28. The lower liquid pipe 41 is communicatively arranged between the lower liquid cover 40 and the distillation box 34.

[0022] A controller 42 is arranged on the upper wall of the forging table 2.

[0023] The controller 42 is electrically connected to the drive motor 7, the hydraulic cylinder 23, the high-frequency coil 27, and the cooling pump 38 respectively.

[0024] During specific use, distilled water is added into the distillation box 34, and normal clear water is added into the water storage cylinder 17. In the initial state, the locking bolt 9 is located inside the locking threaded hole 8, and the hinge seat 6 is fixedly arranged. When it is necessary to forge the spline on the surface of the automotive drive shaft, manually rotate the locking bolt 9. The locking bolt 9 is screwed out from inside the locking threaded hole 8, and the hinge seat 6 changes from the fixed state to the movable state. Rotate the hinge seat 6, and the hinge seat 6 drives the clamping sleeve 14 to move away from both sides of the die cylinder 3. Place the forging of the automotive drive shaft to be forged on the inner wall of the die cylinder 3. The outer diameter of the forging is consistent with the inner diameter of the die cylinder 3. Then rotate the hinge seat 6. The hinge seat 6 rotates around the forging table 2 and drives the clamping sleeve 14 to approach the die cylinder 3. Use the deformation of the clamping spring 44 to push the clamping sleeve 14. The clamping sleeve 14 slides along the guide post 13 and approaches the barrier cylinder 12. At this time, the distance between the opposite clamping sleeves 14 is the maximum value. Release the clamping sleeve 14, and the clamping spring 44 rebounds and resets to drive the clamping sleeve 14 to sleeve on the outside of the forging. Rotate the clamping bolt 15, and the clamping bolt 15 is screwed into the clamping sleeve 14 to fix the forging. The clamping sleeve 14 is attached to the side wall of the forging table 2. The controller 42 controls the start of the first thermoelectric cooling fin group 21. The first thermoelectric cooling fin group 21 cools the water inside the water storage cylinder 17 through the cooling end. The controller 42 controls the start of the liquid supply pump 18. The liquid supply pump 18 pumps the water inside the water storage cylinder 17 into the inner sleeve 19 through the liquid suction end via the liquid supply hose 20. The inner sleeve 19 conveys the water into the barrier cylinder 12. After the barrier cylinder 12 is filled with cooling water, it can block the heat from the forging, preventing the driving motor 7 from overheating. The controller 42 controls the start of the high-frequency coil 27. The high-frequency coil 27 heats the forging. After the temperature of the forging rises, it is convenient for shaping. The controller 42 controls the start of the hydraulic cylinder 23. The power end of the hydraulic cylinder 23 extends to drive the keyway block 25 to slide along the pressing groove 24. As the power end of the hydraulic cylinder 23 continuously extends, the keyway block 25 presses a groove on the surface of the heated forging. After the temperature of the forging rises, the barrier cylinder 12 is heated by the clamping sleeve 14. The cooling water inside the barrier cylinder 12 quickly evaporates and absorbs heat after being heated by the forging, thereby blocking the heat conduction path between the forging and the driving motor 7; The steam generated inside the barrier cylinder 12 enters the mist exhaust cylinder 31 through the inner sleeve 19. When steam enters the mist exhaust cylinder 31, the mist exhaust floating ball 32 is ejected from the connecting part of the mist exhaust cylinder 31 and the inner sleeve 19. The steam enters the distillation copper tube 35 through the mist exhaust hose 43. The controller 42 controls the start of the second thermoelectric cooling fin group 36. The second thermoelectric cooling fin group 36 cools the distilled water inside the distillation box 34 through the cooling end. The distillation box 34 cools the distillation copper tube 35. When the steam enters the distillation copper tube 35, it condenses into distilled water and falls into the distillation box 34. An exhaust valve is pre-opened on the upper wall of the distillation box 34. The excess gas after condensation is discharged through the exhaust valve; After one side of the forging is completed, the controller 42 controls the start of the driving motor 7. The driving motor 7 drives the driving shaft 11 to rotate through the power end. The driving shaft 11 drives the clamping sleeve 14 to rotate through the barrier cylinder 12. The clamping sleeve 14 drives the forging to rotate inside the die cylinder 3 to adjust the forging angle of the keyway block 25 with respect to the forging, facilitating the keyway block 25 to perform multiple groups of spline forging on the surface of the forging; After the forging of the forging is completed, the forging needs to be cooled and then taken out. At this time, the controller 42 controls the cooling pump 38 to start. The cooling pump 38 extracts distilled water inside the distillation tank 34 through the liquid extraction end. The distilled water flows into the mold cylinder 3 through the cooling pipe 39. The distilled water cools the forging inside the mold cylinder 3. The driving motor 7 drives the driving shaft 11 to rotate through the power end. The driving shaft 11 drives the forging to rotate inside the mold cylinder 3 through the barrier cylinder 12 and the clamping sleeve 14, so that the forging uniformly contacts the distilled water. Drainage grooves are pre-opened on the bottom wall of the mold cylinder 3 on both sides of the circular groove 26. The excess distilled water falls into the lower liquid cover 40 through the drainage grooves. The distilled water inside the lower liquid cover 40 flows back into the distillation tank 34 through the lower liquid pipe 41. The distilled water after heat evaporation is discharged through the heating port 28 on the upper wall of the mold cylinder 3. The distilled water flowing into the distillation tank 34 through the distillation copper pipe 35, on the one hand, can replenish the distilled water inside the distillation tank 34; on the other hand, it can reduce the waste of cooling water. When the mist discharge float 32 stays at the connection part of the mist discharge cylinder 31 and the outer sleeve 19, the forging stops heating the cooling water inside the barrier cylinder 12, and no water vapor can be generated inside the barrier cylinder 12, completing the cooling operation of the forging. Then, the forging inside the mold cylinder 3 can be taken out. Rotate the locking bolt 9, and the locking bolt 9 is screwed out of the locking threaded hole 8. The hinge seat 6 changes from the fixed state to the movable state. The hinge seat 6 rotates around the forging table 2 and drives the clamping sleeve 14 away from both sides of the mold cylinder 3 to take out the forging from inside the mold cylinder 3; just repeat the above operations when using it next time.

[0025] 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 "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] The above describes the solution and its implementation manner. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of this solution, and the actual structure is not limited thereto. All in all, if those of ordinary skill in the art are inspired by it and design similar structural ways and embodiments without creative efforts without departing from the creative purpose of this solution, they should all fall within the protection scope of this solution.

Claims

1. A spline forging die for an automobile drive shaft, comprising a base, a forging table and a die barrel, characterized in that: It also includes a heat-insulating forging mechanism and a fog-measuring cooling mechanism. The base is arranged on the bottom wall of the forging table, and the die cylinder is arranged at one end of the forging table away from the base; The heat-insulating forging mechanism includes a driving component, a liquid isolation component, a liquid supply component, and a pressing groove component; The driving component is arranged at both ends of the forging table, the liquid isolation component is arranged on the side wall of the driving component, the liquid supply component is arranged on one side of the die cylinder, and the pressing groove component is arranged at one end of the die cylinder away from the liquid supply component; The fog-measuring cooling mechanism includes a fog exhaust component, a distillation collection component, and a temperature reduction component; The fog exhaust component is arranged on the upper wall of the liquid isolation component, the distillation collection component is arranged between the bases, and the temperature reduction component is arranged on the side wall of the distillation collection component; The driving component includes a hinge seat; The hinge seats are symmetrically arranged at both ends of the forging table and are hinged to the forging table; The liquid isolation component includes a driving shaft, a barrier cylinder, a guide post, a clamping sleeve, a clamping bolt, and a clamping spring; The driving shaft is arranged through the inner wall of the hinge seat, the barrier cylinder is arranged on the side of the driving shaft away from the hinge seat, multiple groups of guide posts are arranged on the side of the barrier cylinder away from the driving shaft, the clamping sleeve is slidably arranged between the guide posts, the clamping bolt is arranged through the inner wall of the bottom wall of the clamping sleeve, and the clamping spring is arranged between the clamping sleeve and the barrier cylinder; The liquid supply component includes an outer sleeve; The outer sleeve is rotatably arranged outside the barrier cylinder, the bottom of the outer sleeve is connected to the bottom wall of the hinge seat, and the barrier cylinder is communicated with the outer sleeve through the through hole on its surface; The fog exhaust component includes a fog exhaust cylinder and a fog exhaust float ball; The fog exhaust cylinder is communicated and arranged on the upper wall of the outer sleeve, the fog exhaust float ball is arranged on the inner wall of the fog exhaust cylinder, and the outer diameter of the fog exhaust float ball is larger than the inner diameter of the communication pipeline between the fog exhaust cylinder and the outer sleeve.

2. The spline forging die of an automotive drive shaft according to claim 1, wherein: The driving component further includes a driving motor, a locking threaded hole, and a locking bolt. The locking threaded hole is arranged on the side of the hinge seat close to the forging table, the locking bolt is arranged through the inner wall of the forging table, the end of the locking bolt away from the forging table is arranged inside the locking threaded hole, and the locking bolt is threadedly connected to the locking threaded hole. The driving motor is arranged on the side of the hinge seat away from the forging table, and the power end of the driving motor is connected to the driving shaft.

3. The spline forging die of an automotive drive shaft according to claim 1, characterized in that: The liquid supply component further includes a water storage cylinder, a liquid supply pump, a liquid supply hose, and a first group of thermoelectric cooling chips. The water storage cylinders are symmetrically arranged on the side walls of the die cylinder, the liquid supply pump is arranged on the side of the water storage cylinder away from the die cylinder, the water pumping end of the liquid supply pump is arranged through the inside of the water storage cylinder, the liquid supply hose is communicated and arranged between the outer sleeve and the liquid discharge end of the liquid supply pump, and the first group of thermoelectric cooling chips is arranged through the bottom wall of the water storage cylinder, and the cooling end of the first group of thermoelectric cooling chips is located inside the water storage cylinder.

4. A forging die for the spline of an automotive drive shaft according to claim 3, characterized in that: The pressing groove component includes a hydraulic cylinder, a pressing groove, a key groove block, a circular groove, a high-frequency coil, and a heating port. The hydraulic cylinders are symmetrically arranged at one end of the forging table away from the water storage cylinder, the pressing grooves are symmetrically arranged on the side of the die cylinder close to the hydraulic cylinder, and the pressing grooves are through settings. The key groove block is arranged at the power end of the hydraulic cylinder, and the end of the key groove block away from the hydraulic cylinder is slidably arranged inside the pressing groove.

5. The forging die for the spline of an automotive drive shaft according to claim 4, wherein: The circular groove is arranged at the middle side wall position of the die cylinder, the high-frequency coil is arranged inside the circular groove, and multiple groups of heating ports are arranged on the inner wall of the circular groove.

6. The forging die for the spline of an automotive drive shaft according to claim 1, characterized in that: The fractionation assembly includes a distillation box, a fractionation copper tube, a second thermoelectric cooling sheet group, and an exhaust mist hose. The distillation box is arranged between the bases below the forging table. The exhaust mist hose is communicatively arranged on the upper wall of the exhaust mist cylinder. The fractionation copper tube is communicatively arranged between the second thermoelectric cooling sheet group and the distillation box. The second thermoelectric cooling sheet group is arranged on the side wall of the distillation box, and the cooling end of the second thermoelectric cooling sheet group penetrates through the distillation box and is arranged inside.

7. The forging die for the spline of an automotive drive shaft according to claim 6, characterized in that: The temperature reduction assembly includes a cooling pump, a temperature reduction tube, a liquid-down hood, and a liquid-down tube. The cooling pump is arranged on the side wall of the distillation box, and the liquid suction end of the cooling pump penetrates through the distillation box and is arranged inside. The temperature reduction tube is communicatively arranged between the die cylinder and the drainage end of the cooling pump. The liquid-down hood is arranged on the bottom wall of the die cylinder outside the heating port. The liquid-down tube is communicatively arranged between the liquid-down hood and the distillation box.

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