A spline forging die for automobile transmission shaft

Abstract

The present invention belongs to the field of forming die technology, specifically a die for forging automotive drive shaft splines, comprising a base, a forging table, a die barrel, a heat-resistant forging mechanism, and a mist-detecting cooling mechanism. The base is disposed on the bottom wall of the forging table, the die barrel is disposed at an end of the forging table away from the base, the heat-resistant forging mechanism is disposed on the forging table, and the mist-detecting cooling mechanism is disposed on the base. The heat-resistant forging mechanism includes a drive assembly, a liquid barrier assembly, a liquid supply assembly, and a pressure groove assembly. The present invention provides a die for forging automotive drive shaft splines that can automatically steer a forging, allowing for multiple sets of splines to be forged on the forging surface, and can isolate heat generated within the forging, thereby ensuring the stability of the drive structure.

Description

Technical Field

[0001] The invention belongs to the technical field of forming dies, and in particular relates to a spline forging die for an automobile transmission shaft. Background Art

[0002] A spline shaft, a type of mechanical transmission, features a longitudinal keyway on the shaft's exterior. A rotating member mounted on the shaft also has a corresponding keyway, allowing it to rotate synchronously with the shaft. While rotating, a spline shaft can also slide longitudinally on the shaft, finding applications in automotive powertrain systems and steering mechanisms.

[0003] The existing automobile transmission shaft spline forging dies have the following problems:

[0004] 1. The existing automobile transmission shaft spline forging die is not convenient for automatic steering of the forging, making it impossible to forge multiple sets of splines on the forging surface;

[0005] 2. When the traditional automobile drive shaft spline forging die uses a motor to drive the forging, it is unable to isolate the heat generated by the forging. During the forging process, the forging temperature is high, and the heat inside the forging is easily introduced into the motor along the drive shaft, thereby damaging the motor.

[0006] Therefore, the existing demand for the use of automobile transmission shaft spline forging dies cannot be met. Summary of the Invention

[0007] In view of the above situation, in order to overcome the defects of the existing technology, the present solution provides an automobile drive shaft spline forging die that can automatically turn the forging, so that multiple sets of splines can be forged on the surface of the forging, and the heat generated inside the forging can be isolated, thereby ensuring the stability of the drive structure.

[0008] The technical solution adopted in this scheme is as follows: This scheme proposes a spline forging die for an automobile transmission shaft, comprising a base, a forging table, a die cylinder, a heat-resistant forging mechanism and a mist-detecting cooling mechanism. The base is arranged on the bottom wall of the forging table, the die cylinder is arranged at the end of the forging table away from the base, the heat-resistant forging mechanism is arranged on the forging table, and the mist-detecting cooling mechanism is arranged on the base. The heat-resistant forging mechanism comprises a driving assembly, a liquid partition assembly, a liquid supply assembly and a pressure groove assembly. The driving assembly is arranged at both ends of the forging table, the liquid partition assembly is arranged on the side wall of the driving assembly, the liquid supply assembly is arranged on one side of the die cylinder, and the pressure groove assembly is arranged at the end of the die cylinder away from the liquid supply assembly. The mist-detecting cooling mechanism comprises a demisting assembly, a distillation assembly and a cooling assembly. The demisting assembly is arranged on the upper wall of the liquid partition assembly, the distillation assembly is arranged between the bases, and the cooling assembly is arranged on the side wall of the distillation assembly.

[0009] As a further preferred embodiment of the present invention, the driving assembly includes an articulated seat, a driving motor, a locking threaded hole and a locking bolt. The articulated seat is symmetrically arranged at both ends of the forging table, the articulated seat is hinged to the forging table, the locking threaded hole is arranged on the side of the articulated seat close to the forging table, the locking bolt is passed 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, the locking bolt is threadedly connected to the locking threaded hole, the driving motor is arranged on the side of the articulated seat away from the forging table, the power end of the driving motor is connected to the driving The movable shaft is connected; the liquid barrier assembly includes a driving shaft, a barrier cylinder, a guide column, 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 columns are arranged on the side of the barrier cylinder away from the driving shaft, the clamping sleeve is slidably arranged between the guide columns, 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 assembly includes a water storage cylinder, a liquid supply pump, an outer sleeve, The liquid supply hose and the thermoelectric cooling plate group 1, the water storage cylinder is 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 supply pump pumping end is arranged inside the water storage cylinder, the outer sleeve is rotatably arranged on the outside of the barrier cylinder, the bottom of the outer sleeve is connected to the bottom wall of the hinge seat, the barrier cylinder is connected to the outer sleeve through the opening on its surface, the liquid supply hose is connected between the outer sleeve and the liquid supply pump discharge end, the thermoelectric cooling plate group 1 is arranged through the bottom wall of the water storage cylinder, and the cooling end of the thermoelectric cooling plate group 1 is located in the water storage cylinder Interior; the pressing groove assembly includes a hydraulic cylinder, a pressing groove, a keyway block, a circular groove, a high-frequency coil and a heating port. The hydraulic cylinder is symmetrically arranged at the end of the forging table away from the water storage cylinder, and the pressing groove is symmetrically arranged on the side of the mold cylinder close to the hydraulic cylinder. The pressing groove is a through-setting, and the keyway block is arranged at the power end of the hydraulic cylinder. The end of the keyway block away from the hydraulic cylinder is slidably arranged inside the pressing groove, and 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, and multiple groups of heating ports are arranged on the inner wall of the circular groove.

[0010] When in use, the thermoelectric cooling plate group cools down the water inside the water storage cylinder through the cooling end, and the liquid supply pump draws the water inside the water storage cylinder into the outer sleeve through the liquid supply hose through the water pumping end. The outer sleeve transports the water to the inside of the barrier cylinder. The barrier cylinder is filled with cooling water and can isolate the heat from the forging to avoid overheating of the drive motor. The locking bolt is rotated and unscrewed from the locking threaded hole. The articulated seat changes from a fixed state to an active state. The articulated seat is rotated, and the articulated seat drives the clamping sleeve away from both sides of the mold barrel. The automobile transmission shaft forging to be forged is placed on the inner wall of the mold barrel. The outer diameter of the forging is consistent with the inner diameter of the mold barrel. Then the articulated seat is rotated, and the articulated seat rotates around the forging table to drive the clamping sleeve close to the mold barrel, and the deformation of the clamping spring is used to push The clamping sleeve slides along the guide column and approaches the barrier cylinder. At this time, the distance between the relative clamping sleeves is the maximum. The clamping sleeve is loosened, and the clamping spring rebounds and resets to drive the clamping sleeve to be sleeved on the outside of the forging. The clamping bolt is rotated, and the clamping bolt is screwed into the inside of the clamping sleeve to fix the forging. The high-frequency coil heats the forging. After the temperature of the forging rises, it is convenient to shape. The extension of the power end of the hydraulic cylinder drives 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 groove on the surface of the heated forging. After the temperature of the forging rises, the barrier cylinder is heated by the clamping sleeve. The cooling water inside the barrier cylinder evaporates quickly after being heated by the forging, absorbing heat, thereby cutting off the heat conduction path between the forging and the drive motor.

[0011] Preferably, the demisting assembly includes a demisting cylinder and a demisting float, the demisting cylinder is connected to the upper wall of the outer sleeve, the demisting float is arranged on the inner wall of the demisting cylinder, and the outer diameter of the demisting float is larger than the inner diameter of the connecting pipe between the demisting cylinder and the outer sleeve; the distillation assembly includes a distillation box, a distillation copper tube, a thermoelectric cooling plate group 2 and a demisting hose, the distillation box is arranged between the bases below the forging table, the demisting hose is connected to the upper wall of the demisting cylinder, the distillation copper tube is connected to the thermoelectric cooling plate group 2 Between the mold barrel and the distillation box, the second thermoelectric refrigeration plate group is arranged on the side wall of the distillation box, and the cooling end of the second thermoelectric refrigeration plate group is arranged through the inside of the distillation box; the cooling component includes a cooling pump, a cooling pipe, a lower liquid cover and a lower liquid pipe, the cooling pump is arranged on the side wall of the distillation box, the cooling pump liquid suction end is arranged through the inside of the distillation box, the cooling pipe is connected between the mold barrel and the cooling pump drainage end, the lower liquid cover is arranged on the bottom wall of the mold barrel outside the heating port, and the lower liquid pipe is connected between the lower liquid cover and the distillation box.

[0012] During use, the steam generated inside the barrier tube enters the mist exhaust tube through the outer sleeve. When steam enters the mist exhaust tube, the mist exhaust float is sprayed away from the connecting part between the mist exhaust tube and the outer sleeve, and the steam enters the distillation copper tube through the mist exhaust hose. Thermoelectric refrigeration group 2 cools the distilled water inside the distillation box through the refrigeration end, and the distillation box cools the distillation copper tube. When the steam enters the distillation copper tube, it condenses into distilled water and falls into 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 forging is completed, the forging needs to be cooled and then taken out. At this time, the cooling pump extracts distilled water from the distillation box through the liquid extraction end, and the distilled water flows into the mold barrel through the cooling pipe. The distilled water cools the forging inside the mold barrel. 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 barrel through the barrier cylinder and the clamping sleeve, so that the forging is evenly in contact with the distilled water. The excess distilled water falls into the lower liquid cover through the heating port, and the distilled water inside the lower liquid cover flows back to the distillation box through the lower liquid pipe.

[0013] Specifically, a controller is provided on the upper wall of the forging table.

[0014] Wherein, the controller is electrically connected to the drive motor, the hydraulic cylinder, the high-frequency coil and the cooling pump respectively.

[0015] The beneficial effects achieved by adopting the above structure are as follows:

[0016] Compared with the existing technology, this solution adopts a combination of a heat-resistant forging mechanism and a mist-detecting cooling mechanism. With the mutual cooperation of the driving assembly, liquid barrier assembly, liquid supply assembly, trough assembly, mist exhaust assembly, distillation assembly and cooling assembly, multiple sets of splines can be forged on the surface of the forging. The power end of the driving motor is used to drive the forging to rotate inside the mold barrel, so that the keyway block can contact different areas of the forging, thereby forging multiple sets of splines on the forging surface. Under the isolation of cooling water, the heat generated by the heated forging can be prevented from being conducted to the inside of the driving motor, thereby maintaining the continuous and stable operation of the driving motor. In the case of no need for cooling water reflux (the reflux water temperature is high, affecting the initial temperature of the cooling water inside the water storage cylinder, and thus cannot completely block the heat conducted by the forging), the evaporated cooling water is condensed and recovered to replenish the distillation box, thereby reducing the waste of cooling water, thereby ensuring the forging efficiency of multiple sets of splines on the surface of the forging to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this scheme;

[0018] Figure 2 This is the main perspective view of this scheme;

[0019] Figure 3 This is a bottom-up perspective view of this scheme;

[0020] Figure 4 This is a schematic diagram of the combined structure of the base, forging table and die cylinder of this solution;

[0021] Figure 5 This is a schematic diagram of the combined structure of the heat-resistant forging mechanism and the mist-detecting cooling mechanism of this scheme;

[0022] Figure 6 This is a schematic diagram of the structure of the groove pressing component of this scheme;

[0023] Figure 7 Schematic diagram of the structure of the mold barrel;

[0024] Figure 8 This is the main view of this scheme;

[0025] Figure 9 This is the left view of this scheme;

[0026] Figure 10 This is the right view of this scheme;

[0027] Figure 11 This is a top view of the scheme;

[0028] Figure 12 for Figure 11 AA section view;

[0029] Figure 13 for Figure 11 BB partial cross-sectional view;

[0030] Figure 14 for Figure 1 A magnified structural view of part I;

[0031] Figure 15 for Figure 2 A magnified structural view of Part II;

[0032] Figure 16 for Figure 3 A magnified structural view of part III.

[0033] Among them, 1. Base, 2. Forging table, 3. Mold cylinder, 4. Heat-resistant forging mechanism, 5. Drive assembly, 6. Articulated seat, 7. Drive motor, 8. Locking threaded hole, 9. Locking bolt, 10. Liquid barrier assembly, 11. Drive shaft, 12. Barrier cylinder, 13. Guide column, 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 cooling plate group 1, 22. Press groove 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 assembly, 31, exhaust tube, 32, exhaust float, 33, distillation assembly, 34, distillation box, 35, distillation copper tube, 36, thermoelectric refrigeration unit 2, 37, cooling assembly, 38, cooling pump, 39, cooling pipe, 40, lower liquid hood, 41, lower liquid pipe, 42, controller, 43, exhaust hose, 44, clamping spring.

[0034] The accompanying drawings are used to provide further understanding of the present solution and constitute a part of the specification. Together with the embodiments of the present solution, they are used to explain the present solution and do not constitute a limitation to the present solution. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of this solution will be clearly and completely described below in conjunction with the drawings in the embodiments of this solution. Obviously, the described embodiments are only part of the embodiments of this solution, not all of the embodiments; based on the embodiments in this solution, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this solution.

[0036] In the description of this solution, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this solution and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this solution.

[0037] like Figures 1-16As shown, the present invention proposes a spline forging die for an automobile transmission shaft, comprising a base 1, a forging table 2, a die barrel 3, a heat-resistant forging mechanism 4, and a mist-detecting cooling mechanism 29. The base 1 is arranged on the bottom wall of the forging table 2, the die barrel 3 is arranged on the end of the forging table 2 away from the base 1, the heat-resistant forging mechanism 4 is arranged on the forging table 2, the mist-detecting cooling mechanism 29 is arranged on the base 1, and the heat-resistant forging mechanism 4 includes a driving component 5, a liquid spacer component 10, a liquid supply component 16, and a groove pressing component 22. The drive assembly 5 is arranged at both ends of the forging table 2, the liquid partition assembly 10 is arranged on the side wall of the drive assembly 5, the liquid supply assembly 16 is arranged on one side of the mold cylinder 3, and the pressing groove assembly 22 is arranged at the end of the mold cylinder 3 away from the liquid supply assembly 16. The mist-measuring cooling mechanism 29 includes a mist exhaust assembly 30, a distillation assembly 33 and a cooling assembly 37. The mist exhaust assembly 30 is arranged on the upper wall of the liquid partition assembly 10, the distillation assembly 33 is arranged between the bases 1, and the cooling assembly 37 is arranged on the side wall of the distillation assembly 33.

[0038] The driving assembly 5 includes an articulated seat 6, a driving motor 7, a locking threaded hole 8 and a locking bolt 9. The articulated seat 6 is symmetrically arranged at both ends of the forging table 2. The articulated seat 6 is hinged to the forging table 2. The locking threaded hole 8 is arranged on the side of the articulated seat 6 close to the forging table 2. The locking bolt 9 is arranged on the inner wall of the forging table 2. The 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 articulated seat 6 away from the forging table 2; the liquid spacer assembly 10 includes a driving shaft 11, a barrier cylinder 12, a guide column 13, a clamping sleeve 14, a clamping Bolt 15 and clamping spring 44, the drive shaft 11 is provided through the inner wall of the hinge seat 6, the power end of the drive motor 7 is connected to the drive shaft 11, the barrier cylinder 12 is provided on the side of the drive shaft 11 away from the hinge seat 6, and multiple groups of guide columns 13 are provided on the side of the barrier cylinder 12 away from the drive shaft 11. The clamping sleeve 14 is slidably provided between the guide columns 13, the clamping bolt 15 is provided through the inner wall of the bottom wall of the clamping sleeve 14, and the clamping spring 44 is provided between the clamping sleeve 14 and the barrier 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 thermoelectric cooling plate group 1-21, the water storage cylinder 17 is symmetrically arranged on the side wall of the mold cylinder 3, the liquid supply pump 18 is arranged on the side of the water storage cylinder 17 away from the mold cylinder 3, the water supply pump 18 pumping end is arranged inside the water storage cylinder 17, the outer sleeve 19 is rotatably arranged on the outside of the barrier cylinder 12, the bottom of the outer sleeve 19 is connected to the bottom wall of the hinge seat 6, the barrier cylinder 12 is connected to the outer sleeve 19 through the opening on its surface, the liquid supply hose 20 is connected between the outer sleeve 19 and the liquid discharge end of the liquid supply pump 18, the thermoelectric cooling plate group 1-21 is arranged on the bottom wall of the water storage cylinder 17, and the cooling end of the thermoelectric cooling plate group 1-21 is located inside the water storage cylinder 17; the groove pressing component 22 includes a hydraulic cylinder 23, a pressing groove 24, a keyway block 25, a circular groove 26, a high-frequency coil 27 and a heating port 28. The hydraulic cylinder 23 is symmetrically arranged at the end of the forging table 2 away from the water storage cylinder 17, and the pressing groove 24 is symmetrically arranged on the side of the mold cylinder 3 close to the hydraulic cylinder 23. The pressing groove 24 is a through-setting. The keyway block 25 is arranged at the power end of the hydraulic cylinder 23, and the end of the keyway 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 mold cylinder 3, the high-frequency coil 27 is arranged inside the circular groove 26, and multiple groups of heating ports 28 are arranged on the inner wall of the circular groove 26.

[0039] The demisting assembly 30 includes a demisting cylinder 31 and a demisting float 32. The demisting cylinder 31 is connected to the upper wall of the outer sleeve 19, and the demisting float 32 is arranged on the inner wall of the demisting cylinder 31. The outer diameter of the demisting float 32 is larger than the inner diameter of the connecting pipe between the demisting cylinder 31 and the outer sleeve 19; the distillation assembly 33 includes a distillation box 34, a distillation copper tube 35, a thermoelectric cooling plate group 2 36 and a demisting hose 43. The distillation box 34 is arranged between the base 1 below the forging table 2, the demisting hose 43 is connected to the upper wall of the demisting cylinder 31, and the distillation copper tube 35 is connected to the thermoelectric cooling plate group 2 36 and the distillation plate group 2. Box 34, the thermoelectric cooling plate group 2 36 is arranged on the side wall of the distillation box 34, and the cooling end of the thermoelectric cooling plate group 2 36 is arranged through the inside of the distillation box 34; the cooling component 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, the liquid suction end of the cooling pump 38 is arranged through the inside of the distillation box 34, the cooling pipe 39 is connected between the mold barrel 3 and the drainage end of the cooling pump 38, the lower liquid cover 40 is arranged on the bottom wall of the mold barrel 3 outside the heating port 28, and the lower liquid pipe 41 is connected between the lower liquid cover 40 and the distillation box 34.

[0040] A controller 42 is provided on the upper wall of the forging table 2 .

[0041] 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.

[0042] When in use, add distilled water to the distillation box 34 and add normal clean water to 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 fixed.

[0043] When it is necessary to forge the spline on the surface of the automobile transmission shaft, manually rotate the locking bolt 9, the locking bolt 9 is unscrewed from the inside of the locking threaded hole 8, the articulated seat 6 changes from a fixed state to a movable state, rotates the articulated seat 6, and the articulated seat 6 drives the clamping sleeve 14 away from both sides of the mold cylinder 3, and places the automobile transmission shaft forging to be forged on the inner wall of the mold cylinder 3. The outer diameter of the forging is consistent with the inner diameter of the mold cylinder 3, and then rotates the articulated seat 6. The articulated seat 6 rotates around the forging table 2 and drives the clamping sleeve 14 to rotate. 4 is moved closer to the die cylinder 3, and the clamping sleeve 14 is pushed by the deformation of the clamping spring 44. The clamping sleeve 14 slides along the guide column 13 and approaches the barrier cylinder 12. At this time, the distance between the opposing clamping sleeves 14 is at its maximum. The clamping sleeve 14 is released, and the clamping spring 44 rebounds and resets to drive the clamping sleeve 14 to sleeve on the outside of the forging. The clamping bolt 15 is rotated, and the clamping bolt 15 is screwed into the inside of the clamping sleeve 14 to fix the forging. The clamping sleeve 14 is in contact with the side wall of the forging table 2.

[0044] The controller 42 controls the thermoelectric cooling plate group 21 to start, and the thermoelectric cooling plate group 21 cools the water inside the water storage cylinder 17 through the cooling end. The controller 42 controls the liquid supply pump 18 to start, and the liquid supply pump 18 draws the water inside the water storage cylinder 17 into the outer sleeve 19 through the water pumping end through the liquid supply hose 20. The outer sleeve 19 transports the water to the inside of the barrier cylinder 12. After the barrier cylinder 12 is filled with cooling water, it can isolate the heat from the forging and prevent the drive motor 7 from overheating. The controller 42 controls the high-frequency coil 27 to start, and the high-frequency coil 27 heats the forging. When the temperature of the forging rises, it is easier to shape it. The controller 42 controls the hydraulic cylinder 23 to start. 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 continues to extend, the keyway block 25 presses the groove on the surface of the heated forging. When the temperature of the forging rises, the blocking cylinder 12 is heated by the clamping sleeve 14. The cooling water inside the blocking cylinder 12 is heated by the forging and evaporates quickly to absorb heat, thereby isolating the heat conduction path between the forging and the drive motor 7.

[0045] The steam generated inside the barrier tube 12 enters the mist exhaust tube 31 through the outer sleeve 19. When steam enters the mist exhaust tube 31, the mist exhaust float 32 is sprayed away from the connection portion between the mist exhaust tube 31 and the outer sleeve 19. The steam enters the distillation copper tube 35 through the mist exhaust hose 43. The controller 42 controls the thermoelectric refrigeration plate group 2 36 to start. The thermoelectric refrigeration plate group 2 36 cools the distilled water inside the distillation box 34 through the refrigeration 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. After condensation, excess gas is discharged through the exhaust valve.

[0046] After the forging of one side of the forging is completed, the controller 42 controls the drive motor 7 to start, and the drive motor 7 drives the drive shaft 11 to rotate through the power end, and the drive 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 on the forging, so that the keyway block 25 can forge multiple sets of splines on the surface of the forging;

[0047] After 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 the distilled water inside the distillation box 34 through the liquid extraction end. The distilled water flows into the mold barrel 3 through the cooling pipe 39. The distilled water cools the forging inside the mold barrel 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 barrel 3 through the barrier cylinder 12 and the clamping sleeve 14, so that the forging is evenly mixed with the distilled water. To achieve contact, lower water troughs are pre-formed on the bottom wall of the mold barrel 3 on both sides of the circular groove 26. Excess distilled water falls into the lower liquid cover 40 through the lower water troughs. The distilled water in the lower liquid cover 40 flows back into the distillation box 34 through the lower liquid pipe 41. The distilled water evaporated by heat is discharged through the heating port 28 on the upper wall of the mold barrel 3 and flows into the distillation box 34 through the collecting copper pipe 35. On the one hand, the distilled water in the distillation box 34 can be replenished; on the other hand, the waste of cooling water can be reduced.

[0048] When the demisting float 32 remains at the connecting part between the demisting 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, thereby completing the cooling operation of the forging, and then the forging inside the mold cylinder 3 can be taken out, and the locking bolt 9 is rotated, and the locking bolt 9 is unscrewed from the locking threaded hole 8, and the articulated seat 6 changes from a fixed state to an active state, and the articulated seat 6 rotates around the forging table 2 to drive the clamping sleeve 14 away from both sides of the mold cylinder 3, and the forging is taken out of the mold cylinder 3; repeat the above operation when using it next time.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only 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 terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The above description of the present solution and its implementation methods is non-limiting. The drawings show only one implementation method of the present solution, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present solution, designs a similar structure and embodiment without creatively designing, they shall fall within the scope of protection of the present solution.

Claims

1. A forging die for a spline of an automobile transmission shaft, comprising a base, a forging table and a die barrel, characterized in that: It also includes a heat-resistant forging mechanism and a mist-detecting cooling mechanism. The base is arranged on the bottom wall of the forging table, and the mold cylinder is arranged at one end of the forging table away from the base. The heat-resistant forging mechanism includes a driving assembly, a liquid barrier assembly, a liquid supply assembly and a pressing groove assembly; The driving assembly is arranged at both ends of the forging table, the liquid partition assembly is arranged on the side wall of the driving assembly, the liquid supply assembly is arranged on one side of the mold cylinder, and the groove pressing assembly is arranged at the end of the mold cylinder away from the liquid supply assembly; The mist-detecting cooling mechanism includes a mist exhaust component, a distillation component and a temperature reduction component; The demisting assembly is arranged on the upper wall of the liquid partition assembly, the distillation assembly is arranged between the bases, and the cooling assembly is arranged on the side wall of the distillation assembly; The driving assembly includes an articulated seat; The hinged seats are symmetrically arranged at both ends of the forging table, and the hinged seats are hinged to the forging table; The liquid barrier assembly includes a drive shaft, a barrier cylinder, a guide column, a clamping sleeve, a clamping bolt and a clamping spring; The driving shaft is provided through the inner wall of the hinge seat, the barrier cylinder is provided on the side of the driving shaft away from the hinge seat, multiple groups of guide posts are provided on the side of the barrier cylinder away from the driving shaft, the clamping sleeve is slidably provided between the guide posts, the clamping bolt is provided through the inner wall of the bottom wall of the clamping sleeve, and the clamping spring is provided between the clamping sleeve and the barrier cylinder; The liquid supply assembly includes an outer sleeve; The outer sleeve is rotatably arranged outside the barrier sleeve, the bottom of the outer sleeve is connected to the bottom wall of the hinge seat, and the barrier sleeve is connected to the outer sleeve through the opening on its surface; The demisting assembly includes a demisting cylinder and a demisting float; The demisting cylinder is connected to the upper wall of the outer sleeve, and the demisting float is arranged on the inner wall of the demisting cylinder. The outer diameter of the demisting float is larger than the inner diameter of the communication pipe between the demisting cylinder and the outer sleeve.

2. The automobile transmission shaft spline forging die according to claim 1, characterized in that: The driving assembly also includes a driving motor, a locking threaded hole and a locking bolt. The locking threaded hole is arranged on the side of the hinged 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. The locking bolt is threadedly connected to the locking threaded hole. The driving motor is arranged on the side of the hinged seat away from the forging table, and the power end of the driving motor is connected to the driving shaft.

3. The automobile transmission shaft spline forging die according to claim 1, characterized in that: The liquid supply assembly also includes a water storage cylinder, a liquid supply pump, a liquid supply hose and a thermoelectric cooling plate group. The water storage cylinder is 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 supply pump pumping end is arranged through the inside of the water storage cylinder, the liquid supply hose is connected between the outer sleeve and the liquid supply pump discharge end, the thermoelectric cooling plate group is arranged through the bottom wall of the water storage cylinder, and the cooling end of the thermoelectric cooling plate group is located inside the water storage cylinder.

4. The automobile transmission shaft spline forging die according to claim 3, characterized in that: The pressing groove assembly includes a hydraulic cylinder, a pressing groove, a keyway block, a circular groove, a high-frequency coil and a heating port. The hydraulic cylinder is symmetrically arranged at the end of the forging table away from the water storage cylinder, and the pressing groove is symmetrically arranged on the side of the mold cylinder close to the hydraulic cylinder. The pressing groove is set through, and the keyway block is arranged at the power end of the hydraulic cylinder. The keyway block is slidably arranged inside the pressing groove at the end away from the hydraulic cylinder.

5. The automobile transmission shaft spline forging die according to claim 4, characterized in that: 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, and multiple groups of heating ports are arranged on the inner wall of the circular groove.

6. The automobile transmission shaft spline forging die according to claim 1, characterized in that: The distillation assembly includes a distillation box, a distillation copper tube, a second thermoelectric cooling plate group and an exhaust hose. The distillation box is arranged between the bases below the forging table. The exhaust hose is connected to the upper wall of the exhaust pipe. The distillation copper tube is connected between the second thermoelectric cooling plate group and the distillation box. The second thermoelectric cooling plate group is arranged on the side wall of the distillation box. The cooling end of the second thermoelectric cooling plate group is arranged inside the distillation box.

7. The automobile transmission shaft spline forging die according to claim 6, characterized in that: The cooling component includes a cooling pump, a cooling pipe, a lower liquid hood and a lower liquid pipe. The cooling pump is arranged on the side wall of the distillation box, the liquid suction end of the cooling pump is arranged through the inside of the distillation box, the cooling pipe is connected between the mold barrel and the drainage end of the cooling pump, the lower liquid hood is arranged on the bottom wall of the mold barrel outside the heating port, and the lower liquid pipe is connected between the lower liquid hood and the distillation box.

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